CN117724275A - Display screen, electronic device and manufacturing method of display screen - Google Patents

Abstract

The present application provides a display screen, an electronic device and a manufacturing method of the display screen, which relates to the field of display technology and is conducive to improving the user experience. The display screen includes a display module and a privacy-preventing structure. The display module includes a plurality of pixels distributed in an array. The display module has a display surface. The privacy-preventing structure includes an electrochromic layer, a first transparent electrode layer and a second transparent electrode layer. Wherein, the first transparent electrode layer is stacked between the electrochromic layer and the display surface. The second transparent electrode layer is stacked on the side of the electrochromic layer away from the display surface. The electrochromic layer includes a transparent enclosure part and an electrochromic part. The transparent enclosure has a hollow area. The electrochromic part is filled in the hollow area. The vertical projection of the electrochromic portion on the display surface overlaps with the vertical projection of the pixels on the display surface, and the vertical projection of the transparent enclosure portion on the display surface overlaps with the vertical projection of the pixels on the display surface.

Description

Display screens, electronic devices and methods of manufacturing display screens

Technical field

Embodiments of the present application relate to the field of display technology, and in particular, to a display screen, an electronic device, and a manufacturing method of a display screen.

Background technique

With the development of display technology, electronic devices with display screens such as mobile phones and computers have become more and more widely used. The display screen of this type of electronic device has a large viewing angle, and users at different viewing angles can obtain the information displayed by the electronic device. However, in some scenarios, users hope that the information displayed by the electronic device will not be obtained by other people around them, and they hope that the electronic device has an anti-peeping function.

In related technology, a privacy film can be attached to the display screen of an electronic device, and the privacy film can filter out the light from a large viewing angle of the electronic device, so that the information displayed by the electronic device cannot be obtained by other people around. However, the thickness of the existing privacy film is relatively large, which increases the overall thickness of the privacy film and the electronic device, which is not conducive to the overall thinning of the privacy film and the electronic device, and cannot meet the user's needs. Moreover, the privacy film is easily scratched and damaged, requiring users to replace it regularly, which brings inconvenience to users.

Contents of the invention

Embodiments of the present application provide a display screen, an electronic device, and a manufacturing method of the display screen, which are beneficial to improving the user experience.

In order to achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

In a first aspect, this application provides a display screen, which includes a display module and a privacy-preventing structure. The display module includes a plurality of pixels distributed in an array. The display module has a display surface. The privacy-preventing structure includes an electrochromic layer, a first transparent electrode layer and a second transparent electrode layer. Wherein, the first transparent electrode layer is stacked between the electrochromic layer and the display surface. The second transparent electrode layer is stacked on the side of the electrochromic layer away from the display surface. The electrochromic layer includes a transparent enclosure part and an electrochromic part. The transparent enclosure has a hollow area. The electrochromic part is filled in the hollow area. The vertical projection of the electrochromic portion on the display surface overlaps with the vertical projection of the pixels on the display surface, and the vertical projection of the transparent enclosure portion on the display surface overlaps with the vertical projection of the pixels on the display surface.

In the display screen of the embodiment of the present application, by arranging a privacy protection structure in the display screen, the electrochromic part of the electrochromic layer can realize The electrochromic part changes from a transparent state to a colored state. And because the electrochromic part is filled in the hollow area of the transparent enclosure, the electrochromic part in the colored state can absorb the large-angle light emitted by the display module, and the small-angle light emitted by the display module can be absorbed by the transparent enclosure. If the electrochromic layer is ejected from the bottom, the electrochromic layer can change the viewing angle of the display, so that the display can switch between the sharing state and the transparent state, which can meet the user's needs in different scenarios and help improve the user experience. . At the same time, the vertical projection of the electrochromic part on the display surface overlaps with the vertical projection of the pixels of the display module on the display surface, and the vertical projection of the transparent enclosure part on the display surface overlaps with the vertical projection of the pixels on the display surface. , can reduce the pixel position restrictions on the formation position of the transparent enclosure part and the electrochromic part, so that the difficulty of forming the transparent enclosure part and the electrochromic part can be reduced, thereby helping to reduce the production cost of the display screen.

In a possible implementation manner, the first transparent electrode layer continuously covers the electrochromic part and the transparent enclosure part.

Therefore, the positions of the electrochromic part and the transparent enclosure part can be avoided from limiting the formation position of the first transparent electrode layer, and the formation process of the first transparent electrode layer can be reduced, thereby improving the production efficiency of the display screen.

In one possible implementation manner, the second transparent electrode layer continuously covers the electrochromic part and the transparent enclosure part.

Therefore, the positions of the electrochromic part and the transparent enclosure part can be avoided from limiting the formation position of the second transparent electrode layer, and the formation process of the second transparent electrode layer can be reduced, thereby improving the production efficiency of the display screen.

In a possible implementation manner, the first transparent electrode layer continuously covers the electrochromic part and the transparent enclosure part. The second transparent electrode layer continuously covers the electrochromic part and the transparent enclosure part.

Thus, the positions of the electrochromic portion and the transparent enclosure portion can be avoided from limiting the formation positions of the first transparent electrode layer and the second transparent electrode layer, and the formation process of the second transparent electrode layer can be reduced, thereby conducive to improving the performance of the display screen. Productivity.

In one possible implementation, the electrochromic part includes a plurality of first sub-parts. The hollow area includes a plurality of first sub-areas. A plurality of first sub-regions are arranged at intervals in the first direction. Each first sub-area is provided with a first sub-section. Wherein, the first direction is parallel to the display surface.

Since the plurality of first sub-regions are arranged at intervals in the first direction, the privacy-preventing structure can change the viewing angle of the display screen in the first direction, that is, when the display screen is in the privacy-preventing state, the viewing angle on both sides of the display screen in the first direction The content displayed on the display screen cannot be observed, so that the display screen can have a good anti-peeping effect. At the same time, only arranging the first sub-part in the first direction is beneficial to reducing costs.

In one possible implementation manner, the hollow area further includes a plurality of second sub-areas. A plurality of second sub-regions are arranged at intervals in the second direction. Each second sub-region intersects and is connected to all first sub-regions. The electrochromic portion also includes a plurality of second sub-portions. Each second sub-area is provided with a second sub-section. Every second subpart intersects all first subparts. Wherein, the second direction intersects the first direction.

Therefore, the first sub-region and the second sub-region may be formed in a grid shape.

Exemplarily, a plurality of second sub-parts are arranged at equal intervals.

Therefore, in the second direction, the spacing between any two adjacent second sub-regions is the same, which is conducive to achieving consistency of light energy in the second direction, and avoids uneven brightness display of the display screen in the privacy-protected state. Uniform situation, thus conducive to ensuring the user experience.

For example, the distance between any two adjacent first sub-parts is equal to the distance between any two adjacent second sub-parts.

Such an arrangement is conducive to achieving consistency in the light energy emitted from the transparent enclosure and avoiding uneven brightness display on the display screen in the privacy-protected state, thereby ensuring the user's experience.

Exemplarily, a plurality of first sub-parts are arranged at equal intervals.

Therefore, in the first direction, the spacing between any two adjacent first sub-regions is the same, which is conducive to achieving consistency of the light energy emitted from the transparent enclosure and avoiding the brightness of the display screen in the privacy-protected state. The display is uneven, which helps ensure the user experience.

In a possible implementation manner, the distance between two adjacent first sub-parts is w, the thickness of the electrochromic part is h, and h and w satisfy: h/w≥1.

By limiting the value range of the ratio of the thickness h of the electrochromic part to the spacing w between the two adjacent first sub-parts, when the display screen enters the privacy-protecting state, the light emitted by the display module is greater than 45° It can be absorbed by the electrochromic part, and the light emitted by the display module at an angle of less than or equal to 45° can be emitted from the transparent enclosure, which can reduce the viewing angle of the display screen in the privacy-preventing state and help ensure the privacy protection of the display screen. Effect.

For example, the thickness h of the electrochromic part satisfies: 1nm≤h≤200μm.

By limiting the thickness of the electrochromic part, it is possible to prevent the electrochromic part from being too thick and reducing the light transmittance of the electrochromic part in a transparent state, thereby reducing the impact of the electrochromic part on the light emitted by the display module. , which can ensure the display effect of the display screen.

For example, the spacing w between two adjacent first sub-parts satisfies: 1 nm ≤ w ≤ 200 μm.

By limiting the spacing between two adjacent first sub-sections, it can be avoided that the area of the display screen needs to be too large due to excessive spacing between two adjacent first sub-sections.

For example, the thickness h of the electrochromic part satisfies: 1nm≤h≤200μm. The spacing w between two adjacent first sub-parts satisfies: 1 nm ≤ w ≤ 200 μm.

By limiting the thickness of the electrochromic part and the spacing between two adjacent first sub-parts, it is possible to avoid the thickness of the electrochromic part being too large to reduce the light transmittance of the electrochromic part in a transparent state, or it can be Therefore, it can be avoided that the spacing between two adjacent first sub-sections is too large and the area of the display screen needs to be too large.

In one possible implementation manner, the display module includes a base substrate, an OLED pixel structure layer and an encapsulation layer that are stacked in sequence. The OLED pixel structure layer includes pixels. The first transparent electrode layer is stacked on a side of the encapsulation layer away from the OLED pixel structure layer, and is bonded to the encapsulation layer.

Therefore, the encapsulation layer is used to isolate water vapor and oxygen in the external environment to prevent water vapor or oxygen from penetrating into the OLED pixel structural layer and affecting the life of the OLED pixel structural layer.

In a possible implementation manner, the display screen further includes a touch structure layer and a shielding layer. The shielding layer is disposed on a side of the second transparent electrode layer away from the display module, and is bonded to the surface of the second transparent electrode layer. The touch structure layer is formed on a side of the shielding layer away from the display module and is attached to the surface of the shielding layer.

By providing the shielding layer, the interference of the second transparent electrode layer on the touch structural layer can be reduced, which is beneficial to ensuring the touch effect of the touch structural layer.

In a possible implementation manner, the display screen further includes a touch structure layer. The touch structure layer is formed on a side of the second transparent electrode layer away from the display module, and is bonded to the surface of the second transparent electrode layer.

Therefore, the touch structure layer and the privacy protection structure can be integrated to form a TOE structure, that is, the touch structure layer is formed together during the manufacturing process of the display screen, instead of connecting independent touch structure layers to the privacy structure. This is conducive to reducing the thickness of the display screen, which is conducive to the thin design of electronic equipment.

Exemplarily, the display screen further includes a polarizing layer, and the polarizing layer is stacked and disposed on a side of the touch structure layer away from the second transparent electrode layer.

This setting can improve the contrast of the display in bright environments through the polarizing layer.

For example, the thickness of the shielding layer is greater than or equal to 8 μm.

By limiting the thickness of the shielding layer, it is possible to prevent the shielding layer from being too thin and failing to reduce the interference of the second transparent electrode layer to the touch structure layer.

Exemplarily, the thickness of the first transparent electrode layer is greater than or equal to 10 nm and less than or equal to 500 nm.

By limiting the thickness of the first transparent electrode layer, the light transmittance of the first transparent electrode layer can be ensured and the impact of the first transparent electrode layer on the light emitted by the display module can be reduced.

For example, the thickness of the second transparent electrode is greater than or equal to 10 nm and less than or equal to 500 nm.

By limiting the thickness of the second transparent electrode layer, the light transmittance of the second transparent electrode layer can be ensured and the impact of the second transparent electrode layer on the light emitted by the display module can be reduced.

Exemplarily, the thickness of the first transparent electrode layer is greater than or equal to 10 nm and less than or equal to 500 nm. The thickness of the second transparent electrode is greater than or equal to 10 nm and less than or equal to 500 nm.

By limiting the thickness of the first transparent electrode layer and the second transparent electrode layer, the light transmittance of the first transparent electrode layer and the second transparent electrode layer can be ensured, and the impact of the first transparent electrode layer and the second transparent electrode layer on the display module can be reduced. The effect of emitted light.

In a second aspect, this application provides a display screen, which includes a display module and a privacy protection structure. The display module has a display surface. The privacy-preventing structure includes an electrochromic layer, a first transparent electrode layer and a second transparent electrode layer. The first transparent electrode layer is stacked between the electrochromic layer and the display surface. The second transparent electrode layer is stacked on the side of the electrochromic layer away from the display surface. Wherein, the first transparent electrode layer has a plurality of first through holes arranged at intervals. The electrochromic layer continuously covers the solid portion of the first transparent electrode layer and the first through hole. A plurality of first protrusions arranged at intervals are integrally connected to the surface of the electrochromic layer facing the first transparent electrode layer. A first protrusion corresponds to a first through hole. The first protrusion is filled in the corresponding first through hole.

In the display screen of the embodiment of the present application, by arranging a privacy protection structure in the display screen, the two sides of the area corresponding to the electrochromic layer and the physical part of the first transparent electrode layer are in the first transparent electrode layer and the second transparent electrode layer. Under the action of an external electric field, the transparent state can be transformed into a colored state, so that the area corresponding to the solid part of the electrochromic layer and the first transparent electrode layer can absorb the large-angle light emitted by the display module. Small-angle light can be emitted from the area corresponding to the first through hole of the electrochromic layer and the first transparent electrode layer, and the viewing angle size of the display screen can be changed through the electrochromic layer, so that the display screen can be in the sharing state and the transparent state. Switching between them can meet the user's needs in different scenarios, which is conducive to improving the user experience. At the same time, the electrochromic layer and the display surface can jointly surround the first transparent electrode layer, and filling the first protrusions into the corresponding first through holes can improve the reliability of fixing the first transparent electrode layer, and can also make the first The side of the transparent electrode layer away from the display surface is flat, thereby facilitating the arrangement of the electrochromic layer.

In a possible implementation manner, a plurality of first through holes are arranged at intervals in a first direction, where the first direction is parallel to the display surface.

Therefore, the anti-privacy structure can change the viewing angle of the display screen in the first direction, that is, when the display screen is in the anti-peeping state, people on both sides of the display screen in the first direction cannot observe the content displayed on the display screen, thereby making the display The screen can have good privacy protection effect. At the same time, only arranging the first sub-part in the first direction is beneficial to reducing costs.

In one possible implementation manner, the plurality of first through holes are distributed in an array.

Therefore, the anti-peep structure can change the viewing angle of the display screen in the first direction and the second direction, that is, when the display screen is in the anti-peep state, on both sides of the first direction of the display screen and on both sides of the second direction The content displayed on the display screen cannot be observed, so that the display screen can have a good anti-peeping effect.

Exemplarily, a plurality of first through holes are arranged at equal intervals.

This helps to achieve consistency in the light energy emitted from the privacy-protection structure and avoids uneven brightness display on the display screen in the privacy-protection state, thereby ensuring the user's experience.

In a possible implementation manner, the width of the first through hole is w, the thickness of the electrochromic layer is h, and h and w satisfy: h/w≥1.

By limiting the value range of the ratio of the distance h between the first transparent electrode layer and the second transparent electrode layer to the width w of the first through hole, when the display screen enters the privacy-protecting state, the display module ejects more than 45 ° light can be absorbed by the electrochromic part, and the light emitted by the display module at less than or equal to 45° can be emitted from the transparent enclosure, which can reduce the viewing angle of the display screen in the privacy-preventing state, which is beneficial to ensuring the display screen privacy protection effect.

Exemplarily, the distance h between the first transparent electrode layer and the second transparent motor layer satisfies: 1 nm ≤ h ≤ 200 μm.

By limiting the distance between the first transparent electrode layer and the second transparent electrode layer, it can be avoided that the distance between the first transparent electrode layer and the second transparent electrode layer is too large to reduce the light transmission of the electrochromic part in the transparent state. efficiency, thereby reducing the impact of the electrochromic part on the light emitted by the display module, and ensuring the display effect of the display screen.

For example, the width w of the first through hole satisfies: 1 nm ≤ w ≤ 200 μm.

By limiting the width of the first through hole, it can be avoided that the size of the first through hole is too large and the area of the display screen needs to be too large.

Exemplarily, the distance h between the first transparent electrode layer and the second transparent motor layer satisfies: 1 nm ≤ h ≤ 200 μm. The width w of the first through hole satisfies: 1nm≤w≤200μm.

By limiting the distance h between the first transparent electrode layer and the second transparent electrode layer and the width of the first through hole, it is possible to prevent the distance between the first transparent electrode layer and the second transparent electrode layer from being too large to reduce electrochromism. The light transmittance of the first through hole in the transparent state can also be used to avoid the need for an excessively large area of the display screen due to an excessive size of the first through hole.

In a possible implementation manner, the display module includes a plurality of pixels arranged in an array, and the vertical projection of the physical part of the first transparent electrode layer on the display surface overlaps with the vertical projection of the pixels on the display surface, at least There is an overlap with a first through hole and a vertical projection of the pixel on the display surface.

Therefore, the restriction of the pixel position on the formation position of the first through hole of the first transparent electrode layer can be reduced, so that the difficulty of forming the first transparent electrode layer can be reduced, thereby helping to reduce the production cost of the display screen.

In one possible implementation, the display module includes a plurality of pixels arranged in an array, with a defined area between two adjacent pixels, and the vertical projection of the physical part of the first transparent electrode layer on the display surface is located in the defined area. within, or coincident with a defined area.

As a result, the physical part of the first transparent electrode layer can avoid the area facing the pixel, so that the electrochromic layer does not affect the vertical light emitting area of the pixel, thereby reducing the impact on the brightness of the display screen in a privacy-protected state. .

In a possible implementation manner, the second transparent electrode layer has a plurality of second through holes arranged at intervals, and the electrochromic layer continuously covers the physical part of the second transparent electrode layer and the second through holes. The electrochromic layer A plurality of second protrusions arranged at intervals are integrally connected to the surface facing the second transparent electrode layer. One second protrusion corresponds to a second through hole, and the second protrusion is filled in the corresponding second through hole. Inside.

Therefore, filling the first protrusions into the corresponding second through holes can improve the reliability of fixing the second transparent electrode layer, and can also make the side of the second transparent electrode layer away from the display surface flat to facilitate the electrochromic layer. setting.

In one possible implementation manner, the display module includes a base substrate, an OLED pixel structure layer and an encapsulation layer that are stacked in sequence. The OLED pixel structure layer includes pixels. The anti-privacy structure is stacked on a side of the encapsulation layer away from the OLED pixel structure layer and is bonded to the encapsulation layer.

Therefore, the encapsulation layer is used to isolate water vapor and oxygen in the external environment to prevent water vapor or oxygen from penetrating into the OLED pixel structure layer and affecting the life of the OLED pixel structure layer.

In a possible implementation manner, the display screen further includes a touch structure layer and a shielding layer. The shielding layer is disposed on a side of the second transparent electrode layer away from the display module, and is bonded to the surface of the second transparent electrode layer. The touch structure layer is formed on a side of the shielding layer away from the display module, and is attached to the surface of the shielding layer.

By providing the shielding layer, the interference of the second transparent electrode layer on the touch structural layer can be reduced, which is beneficial to ensuring the touch effect of the touch structural layer.

In a possible implementation manner, the display screen further includes a touch structure layer. The touch structure layer is formed on a side of the second transparent electrode layer away from the display module, and is bonded to the surface of the second transparent electrode layer.

Therefore, the touch structure layer and the privacy protection structure can be integrated to form a TOE structure, that is, the touch structure layer is formed together during the manufacturing process of the display screen, instead of connecting independent touch structure layers to the privacy structure. This is conducive to reducing the thickness of the display screen, which is conducive to the thin design of electronic equipment.

Exemplarily, the display screen further includes a polarizing layer, and the polarizing layer is stacked on a side of the touch structure layer away from the second transparent electrode layer.

This setting can improve the contrast of the display in bright environments through the polarizing layer.

For example, the thickness of the shielding layer is greater than or equal to 8 μm.

By limiting the thickness of the shielding layer, it is possible to prevent the shielding layer from being too thin and failing to reduce the interference of the second transparent electrode layer to the touch structure layer.

Exemplarily, the thickness of the first transparent electrode layer is greater than or equal to 10 nm and less than or equal to 500 nm.

By limiting the thickness of the first transparent electrode layer, the light transmittance of the first transparent electrode layer can be ensured and the impact of the first transparent electrode layer on the light emitted by the display module can be reduced.

For example, the thickness of the second transparent electrode is greater than or equal to 10 nm and less than or equal to 500 nm.

By limiting the thickness of the second transparent electrode layer, the light transmittance of the second transparent electrode layer can be ensured and the impact of the second transparent electrode layer on the light emitted by the display module can be reduced.

Exemplarily, the thickness of the first transparent electrode layer is greater than or equal to 10 nm and less than or equal to 500 nm. The thickness of the second transparent electrode is greater than or equal to 10 nm and less than or equal to 500 nm.

By limiting the thickness of the first transparent electrode layer and the second transparent electrode layer, the light transmittance of the first transparent electrode layer and the second transparent electrode layer can be ensured, and the impact of the first transparent electrode layer and the second transparent electrode layer on the display module can be reduced. The effect of emitted light.

In a third aspect, this application provides a display screen, which includes a display module and a privacy protection structure. The display module has a display surface. The privacy-preventing structure includes an electrochromic layer, a first transparent electrode layer and a second transparent electrode layer. The first transparent electrode layer is stacked between the electrochromic layer and the display surface. The second transparent electrode layer is stacked on the side of the electrochromic layer away from the display surface. Wherein, the second transparent electrode layer has a plurality of second through holes arranged at intervals. The electrochromic layer continuously covers the solid portion of the second transparent electrode layer and the second through hole. A plurality of second protrusions arranged at intervals are integrally connected to the surface of the electrochromic layer facing the second transparent electrode layer. A second protrusion corresponds to a second through hole, and the second protrusion is filled in the corresponding second through hole.

Therefore, only the area of the electrochromic layer corresponding to the physical part of the second transparent electrode layer can be switched between the transparent state and the colored state. When the area of the electrochromic layer corresponding to the physical part of the second transparent electrode layer becomes In the colored state, the light emitted by the display module can be emitted from the area corresponding to the electrochromic layer and the second through hole. At the same time, the reliability of fixing the second transparent electrode layer can also be improved, and the side of the second transparent electrode layer away from the display surface can also be made flat to facilitate the installation of the electrochromic layer.

In a fourth aspect, this application provides an electronic device. The electronic device includes: a back shell and a display screen as described above, and the display screen is installed on the back shell.

Among them, the technical effects brought by any design method in the fourth aspect can be found in the technical effects brought by different design methods in the first aspect, the second aspect and the third aspect, and will not be described again here.

In a possible implementation manner, the back shell includes a first side and a second side arranged in a first direction. There is a key hole on the first side. Electronic devices also include buttons. The keys are arranged in the key holes. Wherein, the first direction is parallel to the display surface.

In a fifth aspect, the present application provides a method of manufacturing a display screen. The method of manufacturing a display screen includes: providing a display module. The display module includes a plurality of pixels distributed in an array, and the display module has a display surface. A first transparent electrode layer is formed on the display surface. An electrochromic layer is formed on a side of the first transparent electrode layer away from the display surface. Wherein, the electrochromic layer includes a transparent enclosure part and an electrochromic part. The transparent enclosure has a hollow area. The electrochromic part is filled in the hollow area. The vertical projection of the electrochromic portion on the display surface overlaps with the vertical projection of the pixels on the display surface, and the vertical projection of the transparent enclosure portion on the display surface overlaps with the vertical projection of the pixels on the display surface. A second transparent electrode layer is formed on a side of the electrochromic layer away from the first transparent electrode layer.

Therefore, when forming the electrochromic layer, the display effect of the pixel position on the electrochromic layer can be reduced, thereby reducing the difficulty of forming the electrochromic layer, thereby helping to reduce the production cost of the display screen.

In one possible implementation manner, the step of forming the electrochromic layer on a side of the first transparent electrode layer away from the display surface specifically includes: forming a transparent transparent envelope on a side of the first transparent electrode layer away from the display surface. Block layer. The transparent enclosure part green layer is patterned to form a transparent enclosure part. The hollow area of the transparent enclosure is filled with electrochromic material to form an electrochromic part.

Therefore, the electrochromic portion can be formed in a simple manner.

In one possible implementation manner, the display module includes a base substrate, an OLED pixel structure layer and an encapsulation layer that are stacked in sequence. The OLED pixel structure layer includes pixels. The first transparent electrode layer is stacked on a side of the encapsulation layer away from the OLED pixel structure layer, and is bonded to the encapsulation layer. A shielding layer bonded to the second transparent electrode layer is formed on a side surface of the second transparent electrode layer away from the electrochromic layer. A touch structure layer bonded to the shielding layer is formed on a side surface of the shielding layer away from the electrochromic layer.

The method of forming the shielding layer is simple. By providing the shielding layer, the interference of the second transparent electrode layer on the touch structural layer can be reduced, which is beneficial to ensuring the touch effect of the touch structural layer.

In one possible implementation manner, the display module includes a base substrate, an OLED pixel structure layer and an encapsulation layer that are stacked in sequence. The OLED pixel structure layer includes pixels. The first transparent electrode layer is stacked on a side of the encapsulation layer away from the OLED pixel structure layer, and is bonded to the encapsulation layer. A touch structure layer bonded to the second transparent electrode layer is formed on a side surface of the second transparent electrode layer away from the electrochromic layer.

As a result, the touch structure layer and the privacy structure can be integrated to form a TOE structure, which is beneficial to the thin design of electronic equipment.

In a sixth aspect, the present application provides a method for manufacturing a display screen. The method includes: providing a display module. The display module has a display surface. A first transparent electrode layer is formed on the display surface. Wherein, the first transparent electrode layer has a plurality of first through holes arranged at intervals. An electrochromic layer is formed on the display surface and the side of the first transparent electrode layer away from the display surface. Wherein, the electrochromic layer continuously covers the solid part of the first transparent electrode layer and the first through hole. A plurality of first protrusions arranged at intervals are integrally connected to the surface of the electrochromic layer facing the first transparent electrode layer. A first protrusion corresponds to a first through hole, and the first protrusion is filled in the corresponding first through hole. A second transparent electrode layer is formed on a side of the electrochromic layer away from the first transparent electrode layer.

Therefore, the electrochromic layer and the display surface can surround the first transparent electrode layer together, and filling the first protrusions into the corresponding first through holes can improve the reliability of fixing the first transparent electrode layer, and can also make the third transparent electrode layer The side of a transparent electrode layer away from the display surface is flat, thereby facilitating the arrangement of the electrochromic layer.

In one possible implementation manner, the step of forming the first transparent electrode layer on the display surface specifically includes: forming a first transparent electrode germ layer on the display surface. The first transparent electrode germ layer is patterned to form a first transparent electrode layer.

Therefore, the first transparent electrode layer is formed in a simple manner.

In one possible implementation manner, the step of forming a second transparent electrode layer on a side of the electrochromic layer away from the first transparent electrode layer specifically includes: forming a second transparent electrode layer on a side of the electrochromic layer away from the first transparent electrode layer. The second transparent electrode germ layer is formed. The second transparent electrode germ layer is patterned to form a second transparent electrode layer.

Therefore, the second transparent electrode layer can be formed in a simple manner.

In a possible implementation manner, the display module includes a substrate substrate, an OLED pixel structure layer and an encapsulation layer that are stacked in sequence. The OLED pixel structure layer includes pixels, and the first transparent electrode layer is stacked and disposed on the encapsulation layer away from the OLED pixels. One side of the structural layer and attached to the packaging layer. A shielding layer bonded to the second transparent electrode layer is formed on a side surface of the second transparent electrode layer away from the electrochromic layer. A touch structure layer bonded to the shielding layer is formed on a side surface of the shielding layer away from the electrochromic layer.

The method of forming the shielding layer is simple. By providing the shielding layer, the interference of the second transparent electrode layer on the touch structural layer can be reduced, which is beneficial to ensuring the touch effect of the touch structural layer.

In a possible implementation manner, the display module includes a substrate substrate, an OLED pixel structure layer and an encapsulation layer that are stacked in sequence. The OLED pixel structure layer includes pixels, and the first transparent electrode layer is stacked and disposed on the encapsulation layer away from the OLED pixels. One side of the structural layer and attached to the packaging layer. A touch structure layer bonded to the second transparent electrode layer is formed on a side surface of the second transparent electrode layer away from the electrochromic layer.

As a result, the touch structure layer and the anti-peep structure can be integrated to form a TOE structure, which is beneficial to the thin design of electronic equipment.

Description of the drawings

Figure 1 is a perspective view of an electronic device provided by an embodiment of the present application;

Figure 2 is an exploded view of the electronic device shown in Figure 1;

Figure 3 is a schematic diagram of the privacy film provided by some solutions;

Figure 4 is a schematic diagram of the anti-peep module provided by some solutions when powered on;

Figure 5 is a schematic diagram of the anti-peep module provided by some solutions when the power is off;

Figure 6 is a schematic diagram of anti-peep modules provided by other solutions when powered on;

Figure 7 is a schematic diagram of anti-peep modules provided by other solutions when power is cut off;

Figure 8 is a perspective view of a display screen provided by some embodiments of the present application;

Figure 9 is a schematic structural diagram of an LCD display screen provided by some embodiments of the present application;

Figure 10 is a schematic structural diagram of a micro light-emitting diode display screen provided by some embodiments of the present application;

Figure 11 is a schematic structural diagram of an OLED display screen provided by some embodiments of the present application;

Figure 12 is a cross-sectional view of a display screen provided by some embodiments of the present application;

Figure 13 is a cross-sectional view of a display screen provided by other embodiments of the present application;

Figure 14 is a top view of a display screen provided by some embodiments of the present application;

Figure 15 is a top view of a display screen provided by other embodiments of the present application;

Figure 16 is an exploded view of a display screen provided by other embodiments of the present application;

Figure 17 is a perspective view of the first transparent electrode layer and the display module provided by some embodiments of the present application;

Figure 18 is an exploded view of a display screen provided by other embodiments of the present application;

Figure 19 is an exploded view of a display screen provided by other embodiments of the present application;

Figure 20 is a cross-sectional view of a display screen provided by other embodiments of the present application;

Figures 21-26 are schematic diagrams of the manufacturing process of the display screen provided by some embodiments of the present application;

27-31 are schematic diagrams of the manufacturing process of the display screen provided by other embodiments of the present application.

Reference signs:

100. Electronic equipment;

1. Screen; 11. Translucent cover; 12. Display screen; 121. Display module; 1211. Substrate; 1212. OLED pixel structure layer; 1213. Encapsulation layer; 1214. Flat layer; 1215. Pixel; 1216 , display surface; 1217, thin film transistor layer; 1218, defined area; 122, privacy protection structure; 1221, first transparent electrode layer; 12211, first through hole; 1222, electrochromic layer; 12221, first protrusion; 12222. Second protrusion; 1223. Second transparent electrode layer; 12231. Second through hole; 1224. Transparent enclosure; 12241. Hollow region; 12242. First sub-region; 12243. Second sub-region; 1225. Electrochromic part; 12251, first sub-part; 12252, second sub-part; 123, backlight module; 1231, array substrate; 1232, liquid crystal layer; 1233, color filter substrate; 1234, upper polarizer; 1235, lower Polarizer; 124. Micro light-emitting diode chip; 125. Touch structural layer; 126. Shielding layer; 127. Polarizing layer;

2. Back shell; 21. Back cover; 22. Frame; 221. First side; 222. Second side; 223. Third side; 224. Fourth side; 23. Middle panel;

3. Circuit board;

4. Button;

5. Privacy film; 51. Privacy structural layer; 511. Prism structure; 52. Support layer; 53. Protective layer; 54. Hardened layer;

6. Privacy module; 61. Upper substrate; 62. Privacy liquid crystal layer; 63. Lower substrate; 64. First substrate; 65. Polymer dispersed liquid crystal; 66. Second substrate.

Detailed ways

In the embodiments of this application, the terms "exemplary" or "for example" are used to represent examples, illustrations or illustrations. Any embodiment or design described as "exemplary" or "such as" in the embodiments of the present application is not to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the words "exemplary" or "such as" is intended to present the concept in a concrete manner.

In the embodiments of this application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features.

In the description of the embodiments of this application, the term "and/or" refers to and encompasses any and all possible combinations of one or more of the associated listed items. The term "and/or" is an association relationship that describes related objects, indicating that there can be three relationships. For example, A and/or B can mean: A alone exists, A and B exist simultaneously, and B alone exists. situation. In addition, the character "/" in this application generally indicates that the related objects are an "or" relationship.

In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, "connection" may be detachably The connection can also be a non-detachable connection; it can be a direct connection or an indirect connection through an intermediary. Among them, "fixed connection" means that they are connected to each other and their relative positional relationship remains unchanged after connection. In addition, the directional terms mentioned in the embodiments of the present application, such as "inside", "outside", etc., are only referring to the direction of the drawings. Therefore, the directional terms used are for better and clearer explanation and understanding. The embodiments of the present application do not indicate or imply that the devices or components mentioned must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as limitations to the embodiments of the present application.

An embodiment of the present application provides an electronic device, which is a type of electronic device having a display screen. Specifically, the electronic device includes but is not limited to a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a personal computer, a notebook computer, a vehicle-mounted device, Wearable devices, Walkmans, radios and other electronic devices. Among them, wearable devices include but are not limited to smart bracelets, smart watches, smart head-mounted displays, smart glasses, etc. In the following description, the electronic device is a mobile phone as an example.

Please refer to FIG. 1 , which is a perspective view of an electronic device provided by an embodiment of the present application. The embodiments of this application and the following embodiments are described by taking the electronic device 100 as a mobile phone as an example. The electronic device 100 is approximately in the shape of a rectangular plate. On this basis, in order to facilitate the description of various embodiments below, an XYZ coordinate system is established, defining the width direction of the electronic device 100 as the X-axis direction, the length direction of the electronic device 100 as the Y-axis direction, and the thickness direction of the electronic device 100 as Z-axis direction. It can be understood that the direction of the coordinate system of the electronic device 100 can be flexibly set according to actual needs, and is not specifically limited here. In some embodiments, the shape of the electronic device 100 may be a square flat plate, a circular flat plate, an elliptical flat plate, etc., which are not specifically limited here.

Please refer to FIGS. 1 and 2 together. FIG. 2 is an exploded view of the electronic device shown in FIG. 1 . In the embodiment of the present application, the electronic device 100 includes a screen 1 , a back case 2 , a circuit board 3 and buttons 4 . The circuit board 3 may be located inside the back shell 2 of the electronic device 100 .

It can be understood that Figures 1 and 2 only schematically show some components of the electronic device, and the actual shapes, actual sizes, actual positions and actual structures of these components are not limited by Figures 1 and 2 and the following figures. .

The button 4 can be used as a control switch of the electronic device 100. For example, the button 4 can be used to control the power on, power off, volume, etc. of the electronic device 100.

The back case 2 can be used to protect the internal electronic components of the display screen 12 . The material of the back case 2 includes but is not limited to metal, ceramic, plastic and glass. The material of the back case 2 can be metal, which can ensure the structural strength of the back case 2 while making the electronic device 100 thinner and lighter.

Referring to FIG. 2 , the back case 2 may include a first side 221 and a second side 222 arranged in a first direction. The first side 221 has a key hole. The button 4 can be inserted into the button hole. Part of the button 4 may protrude from the first side 221 to facilitate the user's pressing. For example, the key hole may include a volume adjustment hole and a power switch hole. The button 4 may include a volume adjustment button and a switch button. The volume adjustment button may be inserted into the volume adjustment hole, and the switch button may be inserted into the power switch hole.

The first direction is the X-axis direction shown in FIG. 2 . For example, if the electronic device 100 is a mobile phone, and the buttons 4 are located on the left and right sides of the mobile phone, the first direction may be the left and right direction of the mobile phone.

It should be noted that the second side 222 may also have a key hole, or both the first side 221 and the second side 222 may have key holes.

Referring to FIG. 2 , the back case 2 may further include a back cover 21 and a third side 223 and a fourth side 224 arranged in the second direction (Y-axis direction). Among them, the first side 221 , the third side 223 , the second side 222 and the fourth side 224 can be connected in sequence to form the frame 22 of the back case 2 . The frame 22 can be fixed on the back cover 21 , and the frame 22 is arranged around the edge of the back cover 21 . For example, the frame 22 can be fixedly connected to the back cover 21 by adhesive. The frame 22 may also be an integrally formed structure with the back cover 21 , that is, the frame 22 and the back cover 21 may be an integral structure.

Please continue to refer to FIG. 2 . In some embodiments, the back case 2 may also include a middle panel 23 . The middle plate 23 is fixed around the inner surface of the frame 22 . For example, the middle plate 23 can be fixed on the frame 22 by welding, and the middle plate 23 can also be an integrally formed structure with the frame 22 . The circuit board 3, battery and other components can be fixed on the middle plate 23 by bonding, threaded connection, clamping or welding.

In other embodiments, the back case 2 may not include the middle panel 23 . The circuit board 3, battery and other components can be fixed on the inner surface of the back cover 21 through threaded connection, welding or clamping. It can also be fixed to the surface of the display screen 12 facing the back cover 21 through threaded connection, clamping, welding, etc.

The circuit board 3 is used to arrange electronic components and realize electrical connections between various electronic components. In some embodiments, please continue to refer to FIG. 2 , the circuit board 3 may include a main circuit board and a secondary circuit board. The main circuit board and the auxiliary circuit board can be disposed in part of the space between the middle plate 23 and the back cover 21 , and are stacked with the back cover 21 . Among them, the main circuit board can be used to integrate the control chip, the main circuit board can be electrically connected to the display screen 12, and the main circuit board is used to control the display screen 12 to display images, text and other information. The secondary circuit board can be used for integrated antennas (such as 5G antennas) radio frequency front-ends, universal serial bus (USB) devices, vibrators and other electronic components.

Screen 1 is used to display images, text and other information. The screen 1 includes a light-transmitting cover 11 and a display screen 12 . The light-transmitting cover 11 and the display screen 12 are stacked and fixedly connected. The light-transmitting cover 11 is mainly used to protect the display screen 12 and prevent dust. The material of the light-transmitting cover 11 includes but is not limited to glass.

The display screen 12 may be a flexible display screen or a rigid display screen. For example, the display screen 12 may be an organic light-emitting diode (OLED) display screen, an active matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED). Display screen, mini organic light-emitting diode display screen, microorganic light-emitting diode display screen, micro organic light-emitting diode display screen, quantum dot light-emitting diode ( quantum dot light emitting diodes (QLED) display, liquid crystal display (LCD), etc.

In the related art, since the display screen of the electronic device has a large viewing angle, users at different viewing angles can obtain the information displayed on the display screen. However, in some private scenarios, such as processing private information, working with business secrets, entering account passwords, etc., users hope that the information displayed by the electronic device will not be obtained by other people around them. At this time, Then the electronic device is required to reduce the viewing angle of the display screen and have an anti-peeping function.

Please refer to Figure 3, which is a schematic diagram of the privacy film provided by some solutions. In some solutions, the privacy film 5 can be affixed on the light-transmitting cover 11 of the electronic device 100 . The core structural layer of the privacy film 5 is the privacy structural layer 51. The privacy structural layer 51 has a plurality of prism structures 511. The distance between adjacent prism structures 511 is very small (similar to a blind structure). Therefore, only through Light with a small angle range, such as the 50° range shown in the picture, to prevent privacy. In addition, in order to support and protect the privacy-preventing structural layer 51, support layers 52 are provided on both sides of the privacy-preventing structural layer 51. The supporting material is, for example, polyethylene terephthalate (PET). Protective layers 53 are also provided on both sides of the support layer 52 . The protective layer 53 is made of, for example, polyethylene (PE), and is located between the support layer 52 and the protective layer 53 on the light exit side of the privacy-preventing structural layer 51 . A hardening layer 54 may be provided to enhance the strength of the privacy film 5 .

In this solution, the thickness of the film layer of the privacy film 5 is high, which will result in the overall thickness of the privacy film 5 and the electronic device 100 being thicker, which is not conducive to the thinning of the electronic device 100 . And since the privacy film 5 has many film layers, the light transmittance of the display screen 12 will be reduced. If the brightness of the electronic device 100 needs to be increased to the brightness before the privacy film 5 is attached, the brightness of the display screen 12 needs to be increased. , thereby increasing the power consumption of the electronic device 100 . In addition, the method of attaching the anti-privacy film 5 will make the electronic device 100 always in a privacy-protected state, and cannot be suitable for some scenarios where the display information of the display screen 12 needs to be shared, for example, it cannot be suitable for scenarios where multiple people watch videos, pictures, etc. at the same time. . Moreover, the privacy film 5 is easily scratched and damaged and needs to be replaced regularly by the user, which brings inconvenience to the user.

Please refer to Figures 4 and 5. Figure 4 is a schematic diagram of the anti-peep module provided by some solutions when it is powered on, and Figure 5 is a schematic diagram of the anti-peep module provided by some solutions when it is powered off. In some solutions, an anti-peep module 6 can be provided in the display screen 12 , and the anti-peep function of the display screen 12 is implemented through the anti-peep module 6 . Among them, the anti-peep module 6 may include an upper substrate 61, a lower substrate 63 and an anti-peep liquid crystal layer 62. The lower substrate 63 and the upper substrate 61 are arranged in sequence along the light emitting direction of the display screen 12 (the direction indicated by the arrow in the figure). The liquid crystal layer 62 is provided between the lower substrate 63 and the upper substrate 61 . The deflection angle of the liquid crystal molecules in the privacy-preventing liquid crystal layer 62 can be controlled by powering on and off, thereby changing the light emission angle and light emission range of the privacy-prevention module 6 , thereby achieving privacy protection for the electronic device 100 .

In this solution, compared with the existing display screen, the thickness of the privacy protection module 6 shown in FIG. 4 is significantly increased, which increases the thickness of the electronic device 100 and is not conducive to the thinning of the electronic device 100 . And this technical solution is only suitable for LCD displays.

Please refer to Figures 6 and 7. Figure 6 is a schematic diagram of an anti-peep module provided by other solutions when it is powered on, and Figure 7 is a schematic diagram of an anti-peep module provided by other solutions when it is powered off. In other solutions, the anti-peep module 6 may include a first substrate 64 and a polymer dispersed liquid crystal (PDLC) 65 stacked along the light emitting direction of the display screen 12 (the direction indicated by the arrow in the figure). , the second substrate 66. The polymer dispersed liquid crystal 65 may be dislocated or aligned. Among them, the arrangement of the liquid crystal can be changed by applying a voltage to the polymer dispersed liquid crystal 65 . When a voltage is applied (as shown in FIG. 6 ), the liquid crystals are oriented and arranged, and the light emitted from the display screen 12 passes through relatively unscattered, thereby achieving a small viewing angle of the electronic device 100 , thereby achieving privacy protection for the electronic device 100 . When no voltage is applied (as shown in FIG. 7 ), the liquid crystals are misaligned and the light emitted from the display screen 12 is scattered at different angles, thereby achieving a large viewing angle of the electronic device 100 .

In this technical solution, compared with the existing display screen, the thickness of the anti-peep module 6 shown in FIG. 6 is significantly increased, which increases the thickness of the electronic device 100 and is not conducive to the thinning of the electronic device 100 . And this technical solution is only suitable for LCD displays.

It should be noted that the solution used for comparison with the embodiments of the present application may be an undisclosed solution.

In order to solve the above technical problems, embodiments of the present application provide a display screen 12 . Please refer to FIG. 8 , which is a perspective view of a display screen provided by some embodiments of the present application. The display screen 12 includes a display module 121 and a privacy protection structure 122 . The display module 121 includes a plurality of pixels 1215 distributed in an array, that is, the plurality of pixels 1215 are arranged in multiple rows and columns. The array distribution manner of the plurality of pixels 1215 can be changed according to the shape of the display module 121 . For example, when the display module 121 is formed in a square shape, the plurality of pixels 1215 may be distributed along the square array. The display module 121 has a display surface 1216, through which information such as images and text can be displayed. The privacy-preventing structure 122 is disposed on the display surface 1216 of the display module 121, so that the light emitted by the display module 121 can illuminate the privacy-preventing structure 122. The privacy-preventing structure 122 can change its transparent state so that the display screen 12 can be protected from privacy. Switch between peeking state and sharing state.

When the display screen 12 is in the sharing state, the anti-peep structure 122 can make the display screen 12 have a larger viewing angle, and the content displayed on the display screen 12 can be seen from multiple angles of the electronic device 100, making it easier for users to share the display screen. 12Displayed content. When the display screen 12 is in a privacy-protected state, the privacy-protection structure 122 can make the light emitted from the display screen 12 nearly perpendicular to the plane where the display screen 12 is located, and the user can only observe the display screen 12 from the side facing the display screen 12 displayed content.

Please refer to FIG. 9 , which is a schematic structural diagram of an LCD display screen provided by some embodiments of the present application. When the display screen 12 is an LCD display screen, the display screen 12 includes a backlight module 123, a display module 121 and a privacy protection structure 122 that are stacked in sequence.

The backlight module 123 is used to provide a light source with sufficient brightness and uniform distribution for the display module 121 . The backlight module 123 may include a light source and a light guide plate (not shown). Taking the backlight module 123 as an edge-type example, the light source is arranged on the side of the light guide plate. The light source may be provided on one side of the light guide plate or opposite to the light guide plate. There are light sources on both sides, and the light emitted by the light source is injected into the light guide plate. The light guide plate has a light uniformity function and can make the light emit evenly from the light exit surface of the light guide plate. Usually, a reflective sheet is also provided on the back of the light guide plate. The reflective sheet is used to reflect the light emitted by the light source that has not entered the light guide plate into the light guide plate to increase the light extraction rate of the backlight module 123 .

The display module 121 is used to display images. The display module 121 may include an array substrate 1231, a liquid crystal layer 1232 and a color filter substrate 1233 that are stacked in sequence. A plurality of transistors are arranged in an array in the array substrate 1231. The transistors are used to form an electric field between the array substrate 1231 and the color filter substrate 1233 to apply voltage to the liquid crystal molecules in the liquid crystal layer 1232. The voltage drives the liquid crystal molecules to rotate and changes the light transmission. rate, the light irradiates each filter layer (red filter layer, green filter layer and blue filter layer) in the color filter substrate 1233 to realize image display on the display screen 12. The privacy protection structure 122 is disposed on the side of the color filter substrate 1233 away from the liquid crystal layer 1232 .

Among them, the filter layers in the color filter substrate 1233 are arranged in an array, and each filter layer corresponds to each pixel 1215 of the display module 121 . For example, a red filter layer forms a red pixel, a green filter layer forms a green pixel, and a blue filter layer forms a blue pixel.

In other embodiments, the display screen 12 further includes a lower polarizer 1235 and an upper polarizer 1234. The lower polarizer 1235 is disposed on the side of the display module 121 away from the display surface 1216 . For example, the lower polarizer 1235 can be disposed between the backlight module 123 and the array substrate 1231 . The lower polarizer 1235 is used to connect the backlight module 123 to the array substrate 1231 . The light produced is converted into polarized light. The upper polarizer 1234 is disposed on the display surface 1216. For example, the upper polarizer 1234 is disposed between the privacy protection structure 122 and the color filter substrate 1233. The upper polarizer 1234 is used to analyze the polarized light electrically modulated by the liquid crystal to generate light and dark contrast. , thereby causing the display screen 12 to display an image.

Please refer to FIG. 10 , which is a schematic structural diagram of a micro-LED display screen provided by some embodiments of the present application. When the display screen 12 is a micro-LED display screen, the display module 121 includes a micro-LED chip 124 . The privacy-preventing structure 122 and the micro-LED chip 124 are stacked. The micro light emitting diode chip 124 may include a P electrode, a P-type semiconductor, a multi-period quantum well active layer, an N-type semiconductor, and an N electrode. Wherein, the micro light emitting diode chip 124 includes a plurality of pixels.

Please refer to Figure 11, which is a schematic structural diagram of an OLED display screen provided by some embodiments of the present application. When the display screen 12 is an OLED display screen, the display module 121 includes a base substrate 1211, an OLED pixel structure layer 1212 and an encapsulation layer 1213 that are stacked in sequence. The anti-privacy structure 122 is stacked on the side of the encapsulation layer 1213 away from the OLED pixel structure layer 1212.

The base substrate 1211 is the base material for forming the OLED pixel structure layer 1212 and the encapsulation layer 1213. The base substrate 1211 may be flexible or a rigid substrate.

OLED pixel structure layer 1212 may include pixels 1215. The OLED pixel structure layer 1212 may include a metal anode, an organic light-emitting layer and a transparent cathode layer (not shown) sequentially stacked on the substrate. The metal anode, the organic light-emitting layer and the transparent cathode layer form a sandwich structure, and the transparent cathode layer is made of a material such as indium tin oxide. The structural layer of the organic light-emitting layer includes a hole transport layer (HTL), a light-emitting layer (EL) and an electron transport layer (ETL). The voltage between the metal anode and the transparent cathode layer acts on the organic light-emitting layer, and the positive hole and The cathode charges are combined in the light-emitting layer to cause the light-emitting layer to emit light. According to different materials constituting the light-emitting layer, the light-emitting layer can produce three primary colors of red, green and blue to form red pixels, green pixels and blue pixels in the OLED pixel structure layer 1212.

In some embodiments, the display module 121 may be actively driven. The display module 121 may also include a thin film transistor (Thin Film Transistor, TFT) layer 1217. The thin film transistor layer 1217 is stacked to control the pixels through the thin film transistor layer 1217. The opening and closing of 1215. For example, the thin film transistor layer 1217 may be disposed on the substrate. In other implementations, the driving mode of the OLED display screen can also be passive driving (passive driving), which is not specifically limited in this embodiment.

The encapsulation layer 1213 (thin film encapsulation, TFE) is located on the side of the OLED pixel structure layer 1212 away from the base substrate 1211. The encapsulation layer 1213 is used to isolate water vapor and oxygen in the external environment to prevent water vapor or oxygen from penetrating into the OLED pixel structure layer 1212 and affecting the life of the OLED pixel structure layer 1212.

In some embodiments, display screen 12 also includes planarization layer 1214. The flat layer 1214 may be disposed between the display module 121 and the privacy-preventing structure 122 . Wherein, the material of the flat layer 1214 may include organic materials. By providing the flat layer 1214, planarization can be performed, which can provide a relatively flat surface for the electrodes in the subsequent privacy protection structure 122, and can ensure the structural stability of the formed electrode layer.

In some embodiments, the display screen 12 may also include a touch control structure layer 125 , and the touch control structure layer 125 is used to implement the touch control operation of the display screen 12 . The touch structure layer 125 may be formed on a side of the privacy protection structure 122 away from the display surface 1216 and adhere to the surface of the privacy protection structure 122 . Therefore, the touch structure layer 125 and the anti-peep structure 122 can be integrated to form a TOE (touch on encapsulation) structure, that is, the touch structure layer 125 is formed together during the manufacturing process of the display screen 12 instead of separate touch structures. The control structure layer 125 is connected to the privacy protection structure 122, which is beneficial to reducing the thickness of the display screen 12, which is beneficial to the thin design of the electronic device 100.

For example, the touch structure layer 125 may include a bridge metal layer, an insulation layer and a pattern metal layer stacked in sequence. Among them, the positions of the pattern metal layer and the bridge metal layer can be interchanged.

Please refer to Figure 12, which is a cross-sectional view of a display screen provided by some embodiments of the present application. In some embodiments, the privacy protection structure 122 includes a second transparent electrode layer 1223. Display 12 also includes shielding layer 126 . The shielding layer 126 may be disposed on a side of the second transparent electrode layer 1223 away from the display module 121 and attached to the surface of the second transparent electrode layer 1223 . The touch structure layer 125 is formed on a side of the shielding layer 126 away from the display module 121 and is attached to the surface of the shielding layer 126 . Specifically, the shielding layer 126 is disposed between the touch structure layer 125 and the second transparent electrode layer 1223, and the touch structure layer 125 and the second transparent electrode layer 1223 can be separated by the shielding layer 126. Since the second transparent electrode layer 1223 will interfere with the touch accuracy of the touch structure layer 125, by providing the shielding layer 126, the interference of the second transparent electrode layer 1223 on the touch structure layer 125 can be reduced, which is beneficial to ensuring the touch structure layer 125 touch effects.

In some embodiments, the material of the shielding layer 126 may include silicon oxide, silicon carbide, or the like.

In some embodiments, the thickness of shielding layer 126 is greater than or equal to 8 μm. By limiting the thickness of the shielding layer 126 , it is possible to prevent the shielding layer 126 from being too thin and failing to reduce the interference of the second transparent electrode layer 1223 on the touch structure layer 125 .

For example, the thickness of the shielding layer 126 may be 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, or 13 μm.

Please continue to refer to FIG. 12 . In some embodiments, the display screen 12 may further include a polarizing layer 127 . The polarizing layer 127 can be stacked on a side of the touch structure layer 125 away from the privacy structure 122 . Such an arrangement can improve the contrast of the display screen 12 in a bright environment through the polarizing layer 127 .

In the following description, some privacy protection structures 122 of the present application will be described by taking the display screen 12 as an OLED display screen as an example.

Please refer to Figure 13, which is a cross-sectional view of a display screen provided by some embodiments of the present application. In some embodiments, the privacy-preventing structure 122 includes an electrochromic layer 1222, a first transparent electrode layer 1221 and a second transparent electrode layer 1223. By making the first transparent electrode layer 1221 and the second transparent electrode layer 1223 transparent, the first transparent electrode layer 1221 and the second transparent electrode layer 1223 can be prevented from blocking the light emitted by the display module 121 , thereby ensuring that the display screen 12 display brightness. Moreover, the electrochromic layer 1222, the first transparent electrode layer 1221, and the second transparent electrode layer 1223 are all thinner, which is beneficial to the thin design of the electronic device 100.

The materials forming the first transparent electrode layer 1221 and the second transparent electrode layer 1223 may include indium zinc oxide (IZO), indium tin oxide (ITO), indium fluoride oxide (indium fluoride oxide). , IFO), aluminum zinc oxide (al zinc oxide, AZO), etc.

The first transparent electrode layer 1221 is stacked between the electrochromic layer 1222 and the display surface 1216 . The second transparent electrode layer 1223 is stacked on the side of the electrochromic layer 1222 away from the display surface 1216 . That is to say, the first transparent electrode layer 1221 and the second transparent electrode layer 1223 are stacked on opposite sides of the electrochromic layer 1222, and the first transparent electrode layer 1221 and the second transparent electrode layer 1223 can form a complete circuit. Among them, one of the first transparent electrode layer 1221 and the second transparent electrode layer 1223 is a positive electrode and the other is a negative electrode. Different driving voltages can be applied to the first transparent electrode layer 1221 and the second transparent electrode layer 1223 so that The voltage difference forms an electric field between the first transparent electrode layer 1221 and the second transparent electrode layer 1223. Under the action of the electric field, the electrochromic layer 1222 can change from a transparent state to a colored state.

Electrochromic layer 1222 includes a transparent enclosure 1224. Since the electrochromic layer 1222 is located between the first transparent electrode layer 1221 and the second transparent electrode layer 1223, the transparent enclosure 1224 can have a supporting role, and the transparent state of the transparent enclosure 1224 can also avoid blocking the display module. The light emitted by 121.

The transparent enclosure 1224 has a hollow area 12241, and the light emitted by the display module 121 can directly pass through the hollow area 12241. The vertical projection of the transparent enclosure portion 1224 on the display surface 1216 overlaps with the vertical projection of the pixel 1215 on the display surface 1216 . Specifically, the vertically projected portion of the transparent enclosure portion 1224 on the display surface 1216 overlaps with the vertically projected portion of the pixel 1215 on the display surface 1216 . Among them, "overlap" means that the areas of the two are equal and the edge contours coincide. In this way, the restriction caused by the position of the pixel 1215 on the transparent enclosure 1224 can be reduced, and the difficulty of forming the transparent enclosure 1224 can be reduced, which is beneficial to reducing the production cost of the display screen 12 .

Electrochromic layer 1222 also includes an electrochromic portion 1225. The electrochromic part 1225 can be made of electrochromic material. The optical properties (reflectivity, transmittance, absorptivity, etc.) of the electrochromic material can cause stable and reversible color changes under the action of an external electric field. Appearance manifests as reversible changes in color and transparency. Among them, electrochromic materials can be divided into inorganic electrochromic materials and organic electrochromic materials. Inorganic electrochromic materials are, for example, tungsten trioxide. Organic electrochromic materials mainly include polythiophenes and their derivatives, and viologens. tetrathiafulvalene, metal phthalocyanine compounds, etc.

The electrochromic part 1225 is filled in the hollow area 12241. Therefore, when the electrochromic part 1225 is in a colored state, the electrochromic part 1225 can absorb light, and the light can only be emitted from the transparent enclosure part 1224, thereby reducing the light emission angle of the display screen 12, so that the display screen 12 can Protected from privacy. At the same time, the supporting function of the transparent enclosure portion 1224 can prevent the electrochromic portion 1225 from deforming, which is beneficial to improving the safety of the display screen 12 .

When the first transparent electrode layer 1221 and the second transparent electrode layer 1223 are not energized, no electric field is generated between the first transparent electrode layer 1221 and the second transparent electrode layer 1223, and the electrochromic part 1225 is not subjected to external force at this time. Due to the action of the electric field, the electrochromic part 1225 becomes transparent. At this time, the electrochromic part 1225 cannot absorb light, and the light emitted by the display module 121 can directly pass through the electrochromic part 1225, so that the display screen 12 has a larger viewing angle, and the display screen 12 can be in a sharing state at this time.

When the first transparent electrode layer 1221 and the second transparent electrode layer 1223 are energized, an electric field can be generated between the first transparent electrode layer 1221 and the second transparent electrode layer 1223. The electrochromic part 1225 is affected by the external electric field and can be formed from a transparent The status changes to a colored status. At this time, the electrochromic part 1225 can absorb the large-angle light emitted by the display module 121, and the small-angle light emitted by the display module 121 can be emitted from the transparent enclosure part 1224, that is, the electrochromic part 1225 can reduce the size of the display screen. The viewing angle is 12, so that the display screen 12 can be in a privacy-protecting state.

It should be noted that in the embodiment of the present application, the angle of the light emitted by the display module 121 refers to the angle between the light emitted by the display module 121 and the normal line of the plane where the display module 121 is located. Small angles can refer to angles less than 45°, such as 40°, 0°, etc. A large angle can refer to an angle greater than or equal to 45°, such as 45°, 55°, etc. In addition, when the minimum angle is 0°, the light emitted by the display module 121 is perpendicular to the display screen 12 .

Please continue to refer to FIG. 13 . The vertical projection of the electrochromic portion 1225 on the display surface 1216 overlaps with the vertical projection of the pixel 1215 on the display surface 1216 . Specifically, the vertically projected portion of the electrochromic portion 1225 on the display surface 1216 may overlap with the vertically projected portion of the pixel 1215 on the display surface 1216 . In this way, the restriction of the position of the pixel 1215 on the formation of the electrochromic part 1225 can be reduced, so that the difficulty of forming the electrochromic part 1225 can be reduced, which is beneficial to reducing the production cost of the display screen 12 .

According to the display screen 12 provided by the embodiment of the present application, by arranging the anti-peeping structure 122 in the display screen 12, the electrochromic part 1225 of the electrochromic layer 1222 is separated from the first transparent electrode layer 1221 and the second transparent electrode layer on both sides. Under the action of an external electric field 1223, the electrochromic part 1225 can be transformed from a transparent state to a colored state. And because the electrochromic part 1225 is filled in the hollow area 12241 of the transparent enclosure part 1224, the electrochromic part 1225 in the colored state can absorb the large-angle light emitted by the display module 121, and the small-angle light emitted by the display module 121. Light can emit from the transparent enclosure 1224, and the electrochromic layer 1222 can change the viewing angle of the display screen 12, so that the display screen 12 can switch between the sharing state and the transparent state, thereby satisfying the user's needs in different scenarios. usage needs, it is conducive to improving the user experience. At the same time, the vertical projection of the electrochromic part 1225 on the display surface 1216 overlaps with the vertical projection of the pixel 1215 of the display module 121 on the display surface 1216 , and the vertical projection of the transparent enclosure part 1224 on the display surface 1216 overlaps with the vertical projection of the pixel 1215 The vertical projection overlap on the display surface 1216 can reduce the restriction of the position of the pixel 1215 on the formation position of the transparent enclosure part 1224 and the electrochromic part 1225, so that the difficulty of forming the transparent enclosure part 1224 and the electrochromic part 1225 can be reduced. This is beneficial to reducing the production cost of the display screen 12 .

Please continue to refer to FIG. 13. In some embodiments, the first transparent electrode layer 1221 continuously covers the electrochromic part 1225 and the transparent enclosure part 1224. That is to say, the first transparent electrode layer 1221 covering the electrochromic part 1225 and the first transparent electrode layer 1221 covering the transparent enclosure part 1224 are formed as a whole, that is, the first transparent electrode layer 1221 can be a whole layer. A light-transmissive electrode layer 1221 is not provided with holes or hollows. Therefore, the positions of the electrochromic part 1225 and the transparent enclosure part 1224 can be avoided from restricting the formation position of the first transparent electrode layer 1221 , and the formation process of the first transparent electrode layer 1221 can be reduced, thereby conducive to improving the production of the display screen 12 efficiency.

In some embodiments, the thickness of the first transparent electrode layer 1221 is greater than or equal to 10 nm and less than or equal to 500 nm. By limiting the thickness of the first transparent electrode layer 1221, the light transmittance of the first transparent electrode layer 1221 can be ensured, and the impact of the first transparent electrode layer 1221 on the light emitted by the display module 121 can be reduced.

For example, the thickness of the first transparent electrode layer 1221 may be 10 nm, 50 nm, 100 nm, 150 nm, 200 nm, 300 nm, 4000 nm or 500 nm, etc.

In other embodiments, the second transparent electrode layer 1223 continuously covers the electrochromic part 1225 and the transparent enclosure part 1224. That is to say, the second transparent electrode layer 1223 covering the electrochromic part 1225 and the second transparent electrode layer 1223 covering the transparent enclosure part 1224 are formed as a whole, that is, the second transparent electrode layer 1223 can be a whole layer. There are no holes or hollows on the two light-transmissive electrode layers 1223 . Therefore, the positions of the electrochromic part 1225 and the transparent enclosure part 1224 can be avoided from limiting the formation position of the second transparent electrode layer 1223, and the formation process of the second transparent electrode layer 1223 can be reduced, thereby conducive to improving the production of the display screen 12 efficiency.

In some embodiments, the thickness of the second transparent electrode layer 1223 is greater than or equal to 10 nm and less than or equal to 500 nm. By limiting the thickness of the second transparent electrode layer 1223, the light transmittance of the second transparent electrode layer 1223 can be ensured and the impact of the second transparent electrode layer 1223 on the light emitted by the display module 121 can be reduced.

For example, the thickness of the second transparent electrode layer 1223 may be 10 nm, 50 nm, 100 nm, 150 nm, 200 nm, 300 nm, 4000 nm or 500 nm, etc.

In some embodiments, the first transparent electrode layer 1221 continuously covers the electrochromic part 1225 and the transparent enclosure part 1224, and the second transparent electrode layer 1223 continuously covers the electrochromic part 1225 and the transparent enclosure part 1224. Therefore, the positions of the electrochromic part 1225 and the transparent enclosure part 1224 can be avoided from limiting the formation positions of the first transparent electrode layer 1221 and the second transparent electrode layer 1223, and the formation process of the second transparent electrode layer 1223 can be reduced, thereby having the advantage of It is beneficial to improve the production efficiency of the display screen 12 .

In some embodiments, the thickness of the first transparent electrode layer 1221 is greater than or equal to 10 nm and less than or equal to 500 nm. The thickness of the second transparent electrode layer 1223 is greater than or equal to 10 nm and less than or equal to 500 nm. By limiting the thickness of the first transparent electrode layer 1221 and the second transparent electrode layer 1223, the light transmittance of the first transparent electrode layer 1221 and the second transparent electrode layer 1223 can be ensured, and the thickness of the first transparent electrode layer 1221 and the second transparent electrode layer can be reduced. The effect of layer 1223 on the light emitted by the display module 121.

For example, the thickness of the first transparent electrode layer 1221 may be 10 nm, 50 nm, 100 nm, 150 nm, 200 nm, 300 nm, 4000 nm or 500 nm, etc. The thickness of the second transparent electrode layer 1223 may be 10 nm, 50 nm, 100 nm, 150 nm, 200 nm, 300 nm, 4000 nm or 500 nm, etc.

Please refer to Figures 13 and 14. Figure 14 is a top view of a display screen provided by some embodiments of the present application. In some embodiments, electrochromic portion 1225 includes a plurality of first sub-portions 12251. The hollow area 12241 includes a plurality of first sub-areas 12242. The plurality of first sub-regions 12242 are arranged at intervals in the first direction (X-axis direction). Each first sub-region 12242 is provided with a first sub-portion 12251. The first direction is parallel to the display surface 1216 . Specifically, when the plurality of first sub-portions 12251 are affected by an external electric field formed by the first transparent electrode layer 1221 and the second transparent electrode layer 1223, the plurality of first sub-portions 12251 change from a transparent state to a colored state. When the light emitted by the display module 121 is directed towards the anti-peep structure 122, the light directed towards the plurality of first sub-parts 12251 is absorbed by the first sub-parts 12251 and directed towards the transparent space between two adjacent first sub-parts 12251. The light from the enclosure 1224 can emit from the privacy-preventing structure 122 . Since the plurality of first sub-regions 12242 are arranged at intervals in the first direction, the privacy-preventing structure 122 can change the viewing angle of the display screen 12 in the first direction, that is, when the display screen 12 is in the privacy-preventing state, the viewing angle of the display screen 12 is The content displayed on the display screen 12 cannot be observed from one side to both sides, so that the display screen 12 can have a good privacy protection effect. At the same time, only providing the first sub-portion 12251 in the first direction is beneficial to reducing costs.

It should be noted that the first sub-region 12242 extends from one side of the display surface 1216 in the second direction to the other side of the display surface 1216 in the second direction.

Referring to Figures 13 and 14, in some embodiments, the distance between two adjacent first sub-portions 12251 is w. The thickness of the electrochromic portion 1225 is h. h and w satisfy: h/w≥1. By limiting the value range of the ratio of the thickness h of the electrochromic portion 1225 to the spacing w between the two adjacent first sub-portions 12251, when the display screen 12 enters the privacy-protecting state, the display module 121 ejects more than Light of 45° can be absorbed by the electrochromic part 1225, and light of less than or equal to 45° emitted by the display module 121 can be emitted from the transparent enclosure 1224, thereby reducing the viewing angle of the display screen 12 in the privacy-protected state. It is beneficial to ensure the anti-peep effect of the display screen 12 .

For example, the ratio of the thickness h of the electrochromic part 1225 to the spacing w between the two adjacent first sub-parts 12251 may be 1, 2, 3, 4 or 5, etc.

In some embodiments, the thickness h of the electrochromic part 1225 satisfies: 1 nm≤h≤200 μm. By limiting the thickness of the electrochromic part 1225, it is possible to prevent the electrochromic part 1225 from being too thick and reducing the light transmittance of the electrochromic part 1225 in the transparent state, thereby reducing the impact of the electrochromic part 1225 on the display module 121 The influence of the emitted light can ensure the display effect of the display screen 12 .

For example, the thickness h of the electrochromic part 1225 may range from 1 nm, 10 nm, 100 nm, 1 μm, 10 μm, 100 μm, or 200 μm.

In other embodiments, the spacing w between two adjacent first sub-portions 12251 satisfies: 1 nm ≤ w ≤ 200 μm. By limiting the distance between two adjacent first sub-sections 12251, it can be avoided that the area of the display screen 12 needs to be too large due to an excessive distance between two adjacent first sub-sections 12251.

For example, the value range of the spacing w between two adjacent first sub-portions 12251 may be 1 nm, 10 nm, 100 nm, 1 μm, 10 μm, 100 μm or 200 μm, etc.

In some embodiments, the thickness h of the electrochromic part 1225 satisfies: 1 nm ≤ h ≤ 200 μm, and the spacing w between two adjacent first sub-portions 12251 satisfies: 1 nm ≤ w ≤ 200 μm. By limiting the thickness of the electrochromic portion 1225 and the spacing between the two adjacent first sub-portions 12251, it is possible to prevent the electrochromic portion 1225 from being too thick and reducing the light transmission of the electrochromic portion 1225 in the transparent state. This can also prevent the area of the display screen 12 from being too large due to an excessive spacing between two adjacent first sub-sections 12251.

For example, the thickness h of the electrochromic part 1225 may range from 1 nm, 10 nm, 100 nm, 1 μm, 10 μm, 100 μm, or 200 μm. The value range of the spacing w between two adjacent first sub-portions 12251 may be 1 nm, 10 nm, 100 nm, 1 μm, 10 μm, 100 μm or 200 μm, etc.

In some embodiments, the plurality of first sub-sections 12251 are equally spaced. Therefore, in the first direction, the distance between any two adjacent first sub-regions 12242 is the same, which is beneficial to achieving consistency of the light energy emitted from the transparent enclosure 1224 and preventing the display screen 12 from being in the privacy-protecting state. This will help ensure the user’s experience when the brightness display is uneven.

Please refer to FIG. 15 , which is a top view of a display screen provided by other embodiments of the present application. In some embodiments, the hollow area 12241 also includes a plurality of second sub-areas 12243. The plurality of second sub-regions 12243 are arranged at intervals in the second direction. Each second sub-region 12243 intersects and is connected to all first sub-regions 12242. Wherein, the second direction intersects the first direction. Therefore, the first sub-region 12242 and the second sub-region 12243 may be formed in a grid shape.

Electrochromic portion 1225 also includes a plurality of second sub-portions 12252. Each second sub-area 12243 is provided with a second sub-portion 12252. Each second subsection 12252 intersects all first subsections 12251. Therefore, the first sub-section 12251 filled in the first sub-region 12242 and the second sub-section 12252 filled in the second sub-region 12243 may be formed in a grid shape.

Specifically, when the plurality of first sub-portions 12251 and the plurality of second sub-portions 12252 are acted upon by an external electric field formed by the first transparent electrode layer 1221 and the second transparent electrode layer 1223, the plurality of first sub-portions 12251 and the plurality of second sub-portions 12252 Each of the second sub-portions 12252 can change from a transparent state to a colored state. When the light emitted from the display module 121 is directed towards the anti-peep structure 122, the light emitted towards the plurality of first sub-parts 12251 and the plurality of second sub-parts 12252 is absorbed by the first sub-parts 12251 and the second sub-parts 12252, and The light rays directed to the transparent enclosure portion 1224 between two adjacent first sub-portions 12251 and the light rays directed to the transparent enclosure portion 1224 between two adjacent second sub-portions 12252 can pass through the privacy-preventing structure 122 ejaculate. Since the plurality of first sub-regions 12242 are arranged in the first direction and the plurality of second sub-regions 12243 are spaced in the second direction (Y-axis direction), the privacy-preventing structure 122 can change the orientation of the display screen 12 in the first direction and the Y-axis direction. The viewing angle in the second direction, that is, when the display screen 12 is in the privacy-protected state, the content displayed on the display screen 12 cannot be observed on both sides of the first direction and on both sides of the display screen 12 in the second direction, thereby making the display The screen 12 can have a good anti-peeping effect.

It should be noted that the first sub-region 12242 may extend from one side of the display surface 1216 in the first direction to the other side of the display surface 1216 in the first direction.

Please continue to refer to Figures 13 and 15. In some embodiments, the distance between two adjacent first sub-portions 12251 is w. The thickness of the electrochromic portion 1225 is h. h and w satisfy: h/w≥1. The distance between two adjacent second sub-portions 12252 is w1. The thickness of the electrochromic portion 1225 is h. h and w satisfy: h/w1≥1. Therefore, when the display screen 12 enters the privacy-protecting state, the light emitted by the display module 121 at an angle greater than 45° can be absorbed by the electrochromic part 1225, and the light emitted by the display module 121 at an angle less than or equal to 45° can pass through the transparent enclosure. The blocking portion 1224 is ejected, thereby reducing the viewing angle of the display screen 12 in the privacy-protected state, which is beneficial to ensuring the privacy-prevention effect of the display screen 12 .

It should be noted that the distance between two adjacent second sub-parts 12252 may have the same value range as the distance between two adjacent first sub-parts 12251.

In some embodiments, the plurality of second sub-sections 12252 are equally spaced. Therefore, in the second direction, the spacing between any two adjacent second sub-regions 12243 is the same, which is conducive to achieving consistency of light energy in the second direction and avoids the brightness of the display screen 12 in the anti-peep state. The display is uneven, which helps ensure the user experience.

In some embodiments, the spacing between any two adjacent first sub-portions 12251 is equal to the spacing between any two adjacent second sub-portions 12252. Such an arrangement is conducive to realizing the consistency of light energy emitted from the transparent enclosure 1224 and avoiding uneven brightness display of the display screen 12 in the privacy-protected state, thus ensuring the user experience.

In some embodiments, the leads of the first transparent electrode layer 1221 and the leads of the second transparent electrode can be connected to pins of the display screen 12 , and the pins can be connected to the controller of the electronic device 100 through the flexible circuit board 3 . The controller may be a driver chip, a power supply chip or other chips in the electronic device 100 . The electronic device 100 entering the anti-peep state can be manually operated by the user, or can be triggered based on the environmental information around the electronic device 100 (the electronic device 100 can detect the environmental information around the electronic device 100 through an infrared device, a camera, etc.).

The following describes the privacy protection structure 122 of other embodiments of the present application.

Please refer to FIG. 16 , which is an exploded view of a display screen provided by other embodiments of the present application. In some embodiments, the privacy-preventing structure 122 includes an electrochromic layer 1222, a first transparent electrode layer 1221 and a second transparent electrode layer 1223.

The materials forming the first transparent electrode layer 1221 and the second transparent electrode layer 1223 may include indium zinc oxide (IZO), indium tin oxide (ITO), indium fluoride oxide (indium fluoride oxide). , IFO), aluminum zinc oxide (Al Zinc Oxide, AZO), etc. at least one.

The electrochromic layer 1222 can be made of electrochromic material. The optical properties (reflectivity, transmittance, absorptivity, etc.) of the electrochromic material can cause stable and reversible color changes under the action of an external electric field. Appearance manifests as reversible changes in color and transparency. Among them, electrochromic materials can be divided into inorganic electrochromic materials and organic electrochromic materials. Inorganic electrochromic materials are, for example, tungsten trioxide. Organic electrochromic materials mainly include polythiophenes and their derivatives, and viologens. tetrathiafulvalene, metal phthalocyanine compounds, etc.

By making the first transparent electrode layer 1221 and the second transparent electrode layer 1223 transparent, the first transparent electrode layer 1221 and the second transparent electrode layer 1223 can be prevented from blocking the light emitted by the display module 121 , thereby ensuring that the display screen 12 display brightness.

The first transparent electrode layer 1221 is stacked between the electrochromic layer 1222 and the display surface 1216 . The second transparent electrode layer 1223 is stacked on the side of the electrochromic layer 1222 away from the display surface 1216 . That is to say, the first transparent electrode layer 1221 and the second transparent electrode layer 1223 are stacked on opposite sides of the electrochromic layer 1222, and the first transparent electrode layer 1221 and the second transparent electrode layer 1223 can form a complete circuit. Among them, one of the first transparent electrode layer 1221 and the second transparent electrode layer 1223 is a positive electrode and the other is a negative electrode. Different driving voltages can be applied to the first transparent electrode layer 1221 and the second transparent electrode layer 1223 so that The voltage difference forms an electric field between the first electrode and the second electrode. Under the action of the electric field, the electrochromic layer 1222 can change from a transparent state to a colored state.

The first transparent electrode layer 1221 has a plurality of first through holes 12211 arranged at intervals. The electrochromic layer 1222 continuously covers the solid part of the first transparent electrode layer 1221 and the first through hole 12211. The physical part of the first transparent electrode layer 1221 refers to the part of the first transparent electrode layer 1221 except the first through hole 12211 . Specifically, the electrochromic layer 1222 covering the physical part of the first transparent electrode layer 1221 and the electrochromic layer 1222 covering the first through hole 12211 of the first transparent electrode layer 1221 are formed as a whole, that is, the electrochromic layer 1222 Can be a whole layer. Therefore, only the area of the electrochromic layer 1222 corresponding to the solid part of the first transparent electrode layer 1221 can be switched between the transparent state and the colored state. When the electrochromic layer 1222 corresponds to the solid part of the first transparent electrode layer 1221 When the area changes to the colored state, the light emitted by the display module 121 can be emitted from the area of the electrochromic layer 1222 corresponding to the first through hole 12211.

Specifically, when the first transparent electrode layer 1221 and the second transparent electrode are not energized, no electric field is generated between the first transparent electrode layer 1221 and the second transparent electrode layer 1223, and the electrochromic part 1225 is not subjected to an external electric field at this time. As a result, the electrochromic layer 1222 appears in a transparent state. At this time, the electrochromic layer 1222 cannot absorb light, and the light emitted by the display module 121 can directly pass through the electrochromic layer 1222, so that the display screen 12 has a larger viewing angle, and the display screen 12 can be in a sharing state at this time.

When the first transparent electrode layer 1221 and the second transparent electrode layer 1223 are energized, an electric field can be generated between the first transparent electrode layer 1221 and the second transparent electrode layer 1223, and the entities of the electrochromic layer 1222 and the first transparent electrode layer 1221 Part of the corresponding area can change from a transparent state to a colored state under the influence of an external electric field. At this time, the area of the electrochromic layer 1222 corresponding to the physical part of the first transparent electrode layer 1221 can absorb the large-angle light emitted by the display module 121, and the small-angle light emitted by the display module 121 can pass through the electrochromic layer 1222. The area corresponding to the first through hole 12211 of the first transparent electrode layer 1221 is emitted, that is, the viewing angle of the display screen 12 can be reduced, so that the display screen 12 can be in a privacy-protected state.

A plurality of first protrusions 12221 arranged at intervals are integrally connected to the surface of the electrochromic layer 1222 facing the first transparent electrode layer 1221 . This is beneficial to improving the reliability of the connection between the first protrusion 12221 and the electrochromic layer 1222.

A first protrusion 12221 corresponds to a first through hole 12211, and the first protrusion 12221 is filled in the corresponding first through hole 12211. Therefore, the electrochromic layer 1222 and the display surface 1216 can jointly surround the first transparent electrode layer 1221, and filling the first protrusions 12221 into the corresponding first through holes 12211 can improve the reliability of fixing the first transparent electrode layer 1221. property, the side of the first transparent electrode layer 1221 away from the display surface 1216 can also be made flat to facilitate the arrangement of the electrochromic layer 1222.

According to the display screen 12 provided in other embodiments of the present application, by arranging the anti-peeping structure 122 in the display screen 12, the two sides of the area corresponding to the electrochromic layer 1222 and the physical part of the first transparent electrode layer 1221 are in the first Under the action of an external electric field, the transparent electrode layer 1221 and the second transparent electrode layer 1223 can be transformed from a transparent state to a colored state, so that the area of the electrochromic layer 1222 corresponding to the physical part of the first transparent electrode layer 1221 can absorb and display The large-angle light emitted by the module 121 and the small-angle light emitted by the display module 121 can emit from the area corresponding to the electrochromic layer 1222 and the first through hole 12211 of the first transparent electrode layer 1221, and can pass through the electrochromic layer. 1222 changes the viewing angle size of the display screen 12 so that the display screen 12 can switch between the sharing state and the transparent state, thereby meeting the user's use needs in different scenarios and conducive to improving the user's use experience. At the same time, the electrochromic layer 1222 and the display surface 1216 can jointly surround the first transparent electrode layer 1221, and filling the first protrusions 12221 into the corresponding first through holes 12211 can improve the reliability of fixing the first transparent electrode layer 1221. , it is also possible to make the side of the first transparent electrode layer 1221 away from the display surface 1216 flat, thereby facilitating the arrangement of the electrochromic layer 1222.

In some embodiments, if the plurality of first through holes 12211 are arranged at intervals in the first direction (X-axis direction), the area corresponding to the physical part of the electrochromic layer 1222 and the first transparent electrode layer 1221 can also be arranged in the first direction (X-axis direction). arranged at intervals in one direction. Therefore, the privacy-preventing structure 122 can change the viewing angle of the display screen 12 in the first direction, that is, when the display screen 12 is in the privacy-preventing state, people on both sides of the display screen 12 in the first direction cannot observe what is displayed on the display screen 12 . content, so that the display screen 12 can have a good privacy protection effect. At the same time, only providing the first sub-portion 12251 in the first direction is beneficial to reducing costs.

Please continue to refer to FIG. 16. In some embodiments, the width of the first through hole 12211 is w. The distance h between the first transparent electrode layer 1221 and the second transparent electrode layer 1223. h and w satisfy: h/w≥1. The width of the first through hole 12211 refers to the size of the first through hole 12211 in the first direction. By limiting the value range of the ratio of the distance h between the first transparent electrode layer 1221 and the second transparent electrode layer 1223 to the width w of the first through hole 12211, when the display screen 12 enters the privacy-preventing state, the display module 121 The light emitted at an angle greater than 45° can be absorbed by the electrochromic part 1225, and the light emitted by the display module 121 at an angle less than or equal to 45° can be emitted from the transparent enclosure 1224, thereby reducing the visibility of the display screen 12 in the privacy-protecting state. The viewing angle is conducive to ensuring the anti-peep effect of the display screen 12.

For example, the ratio of the distance h between the first transparent electrode layer 1221 and the second transparent electrode layer 1223 to the width w of the first through hole 12211 may be 1, 2, 3, 4 or 5, etc.

In some embodiments, the distance h between the first transparent electrode layer 1221 and the second transparent electrode layer 1223 satisfies: 1 nm≤h≤200 μm. By limiting the distance between the first transparent electrode layer 1221 and the second transparent electrode layer 1223, it can be avoided that the distance between the first transparent electrode layer 1221 and the second transparent electrode layer 1223 is too large to reduce the transparency of the electrochromic part 1225. The light transmittance in the state can be reduced, thereby reducing the impact of the electrochromic part 1225 on the light emitted by the display module 121, and ensuring the display effect of the display screen 12.

For example, the distance h between the first transparent electrode layer 1221 and the second transparent electrode layer 1223 may range from 1 nm, 10 nm, 100 nm, 1 μm, 10 μm, 100 μm or 200 μm.

In other embodiments, the width w of the first through hole 12211 satisfies: 1 nm ≤ w ≤ 200 μm. By limiting the width of the first through hole 12211, it is possible to prevent the first through hole 12211 from being too large, resulting in an excessively large area of the display screen 12.

For example, the value range of the spacing w between two adjacent first sub-portions 12251 may be 1 nm, 10 nm, 100 nm, 1 μm, 10 μm, 100 μm or 200 μm, etc.

In some embodiments, the plurality of first through holes 12211 are arranged at equal intervals. This helps to achieve consistency of light energy emitted from the privacy-protection structure 122 and avoids uneven brightness display of the display screen 12 in the privacy-protection state, thereby ensuring user experience.

In some embodiments, the distance h between the first transparent electrode layer 1221 and the second transparent electrode layer 1223 satisfies: 1 nm ≤ h ≤ 200 μm, and the width w of the first through hole 12211 satisfies: 1 nm ≤ w ≤ 200 μm. By limiting the distance h between the first transparent electrode layer 1221 and the second transparent electrode layer 1223 and the width of the first through hole 12211, excessive distance between the first transparent electrode layer 1221 and the second transparent electrode layer 1223 can be avoided. Reducing the light transmittance of the electrochromic part 1225 in the transparent state can also prevent the first through hole 12211 from being too large, resulting in an excessively large area of the display screen 12 .

For example, the distance h between the first transparent electrode layer 1221 and the second transparent electrode layer 1223 may range from 1 nm, 10 nm, 100 nm, 1 μm, 10 μm, 100 μm, or 200 μm. The value range of the spacing w between two adjacent first sub-portions 12251 may be 1 nm, 10 nm, 100 nm, 1 μm, 10 μm, 100 μm or 200 μm, etc.

Please refer to FIG. 16 and FIG. 17 . FIG. 17 is a perspective view of the first transparent electrode layer and the display module provided by some embodiments of the present application. In some embodiments, the plurality of first through holes 12211 are distributed in an array. Specifically, the plurality of first through holes 12211 can be arranged in multiple rows and columns in the first direction and the second direction, so that the electrochromic layer 1222 can correspond to the physical part of the first transparent electrode layer 1221 The areas are formed in a grid shape. Therefore, the anti-peep structure 122 can change the viewing angle of the display screen 12 in the first direction and the second direction, that is, when the display screen 12 is in the anti-peep state, the viewing angles on both sides of the display screen 12 in the first direction and in the second direction can be changed. The content displayed on the display screen 12 cannot be observed on both sides of the direction, so that the display screen 12 can have a good anti-peeping effect.

Please refer to FIG. 18 , which is an exploded view of a display screen provided by other embodiments of the present application. In some embodiments, the second transparent electrode layer 1223 has a plurality of second through holes 12231 spaced apart. The electrochromic layer 1222 continuously covers the solid part of the second transparent electrode layer 1223 and the second through hole 12231. The physical part of the second transparent electrode layer 1223 refers to the part of the second transparent electrode layer 1223 except the second through hole 12231 . Specifically, the electrochromic layer 1222 covering the physical part of the second transparent electrode layer 1223 and the electrochromic layer 1222 covering the second through hole 12231 of the second transparent electrode layer 1223 are formed as a whole, that is, the electrochromic layer 1222 Can be a whole layer. Therefore, the area where the electrochromic layer 1222 corresponds to the physical part of the first transparent electrode layer 1221 and the area where the electrochromic layer 1222 corresponds to the physical part of the second transparent electrode layer 1223 are the same area, and this area can be in a transparent state. When the area changes to the coloring state, the light emitted by the display module 121 can be emitted from the area corresponding to the electrochromic layer 1222 and the second through hole 12231.

A plurality of second protrusions 12222 arranged at intervals are integrally connected to the surface of the electrochromic layer 1222 facing the second transparent electrode layer 1223 . This is beneficial to improving the reliability of the connection between the second protrusion 12222 and the electrochromic layer 1222 .

A second protrusion 12222 corresponds to a second through hole 12231, and the second protrusion 12222 is filled in the corresponding second through hole 12231. Therefore, filling the first protrusions 12221 into the corresponding second through holes 12231 can improve the reliability of fixing the second transparent electrode layer 1223, and can also make the side of the second transparent electrode layer 1223 away from the display surface 1216 flat. Facilitates the placement of the electrochromic layer 1222.

Please refer to FIG. 19 , which is an exploded view of a display screen provided by other embodiments of the present application. In some embodiments, the privacy-preventing structure 122 includes an electrochromic layer 1222, a first transparent electrode layer 1221 and a second transparent electrode layer 1223. The first transparent electrode layer 1221 is stacked between the electrochromic layer 1222 and the display surface 1216. During this period, the second transparent electrode layer 1223 is stacked on the side of the electrochromic layer 1222 away from the display surface 1216 . The second transparent electrode layer 1223 has a plurality of second through holes 12231 arranged at intervals. The electrochromic layer 1222 continuously covers the solid part of the second transparent electrode layer 1223 and the second through hole 12231. A plurality of second protrusions 12222 arranged at intervals are integrally connected to the surface of the electrochromic layer 1222 facing the second transparent electrode layer 1223 . A second protrusion 12222 corresponds to a second through hole 12231, and the second protrusion 12222 is filled in the corresponding second through hole 12231. Therefore, only the area of the electrochromic layer 1222 corresponding to the solid portion of the second transparent electrode layer 1223 can be switched between the transparent state and the colored state. When the electrochromic layer 1222 corresponds to the solid portion of the second transparent electrode layer 1223 When the area changes to the colored state, the light emitted by the display module 121 can be emitted from the area corresponding to the electrochromic layer 1222 and the second through hole 12231. At the same time, the reliability of fixing the second transparent electrode layer 1223 can also be improved, and the side of the second transparent electrode layer 1223 away from the display surface 1216 can be made flat to facilitate the installation of the electrochromic layer 1222.

Please continue to refer to FIG. 19. In some embodiments, the display module 121 includes a plurality of pixels 1215 arranged in an array. The vertical projection of the physical part of the first transparent electrode layer 1221 on the display surface 1216 overlaps with the vertical projection of the pixel 1215 on the display surface 1216 . At least one first through hole 12211 overlaps with the vertical projection of the pixel 1215 on the display surface 1216 . Therefore, the restriction of the position of the pixel 1215 on the formation position of the first through hole 12211 of the first transparent electrode layer 1221 can be reduced, so that the difficulty of forming the first transparent electrode layer 1221 can be reduced, thereby helping to reduce the production cost of the display screen 12 .

Please refer to FIG. 20 , which is a cross-sectional view of a display screen provided by other embodiments of the present application. In some embodiments, the display module 121 includes a plurality of pixels 1215 arranged in an array. There is a defined area 1218 between two adjacent pixels 1215. The vertical projection of the physical part of the first transparent electrode layer 1221 on the display surface 1216 is located within the defined area 1218 or coincides with the defined area 1218 . Therefore, the physical part of the first transparent electrode layer 1221 can avoid the area facing the pixel 1215, so that the electrochromic layer 1222 does not affect the vertical light emitting area of the pixel 1215, thereby reducing the risk of display in a privacy-protected state. The brightness of screen 12 affects.

The following describes the manufacturing methods of the display screen 12 in some embodiments of the present application.

Please refer to Figures 21-26, which are schematic diagrams of the manufacturing process of the display screen provided by some embodiments of the present application. The manufacturing method of the display screen 12 in the embodiment of the present application includes:

S1: Provide a display module 121; wherein the display module 121 includes a plurality of pixels 1215 distributed in an array, and the display module 121 has a display surface 1216;

S2: Form the first transparent electrode layer 1221 on the display surface 1216;

Among them, the first transparent electrode layer 1221 is formed as a whole layer. The method of forming the first transparent electrode layer 1221 may be physical vapor deposition (PVD), chemical vapor deposition (CAD), atomic layer deposition (ALD), or other methods.

S3: Form the electrochromic layer 1222 on the side of the first transparent electrode layer 1221 away from the display surface 1216;

Among them, the electrochromic layer 1222 includes a transparent enclosure part 1224 and an electrochromic part 1225. The transparent enclosure part 1224 has a hollow area 12241, the electrochromic part 1225 is filled in the hollow area 12241, and the electrochromic part 1225 is on the display surface 1216 The vertical projection of the pixel 1215 overlaps with the vertical projection of the pixel 1215 on the display surface 1216, and the vertical projection of the transparent enclosure 1224 on the display surface 1216 overlaps with the vertical projection of the pixel 1215 on the display surface 1216;

S4: Form the second transparent electrode layer 1223 on the side of the electrochromic layer 1222 away from the first transparent electrode layer 1221.

Wherein, the second transparent electrode layer 1223 continuously covers the transparent enclosure part 1224 and the electrochromic part 1225. The method of forming the second transparent electrode layer 1223 may be physical vapor deposition, chemical vapor deposition, atomic layer deposition, or other methods.

Therefore, when forming the electrochromic layer 1222, the display formed by the position of the pixel 1215 on the electrochromic layer 1222 can be reduced, thereby reducing the difficulty of forming the electrochromic layer 1222, thereby helping to reduce the production cost of the display screen 12 .

In some embodiments, the step of forming the electrochromic layer 1222 on the side of the first transparent electrode layer 1221 away from the display surface 1216 specifically includes:

A transparent transparent enclosure portion 1224 embryonic layer is formed on the side of the first transparent electrode layer 1221 away from the display surface 1216; the transparent enclosure portion 1224 embryonic layer can be formed by spin coating.

Patterning the germ layer of the transparent enclosure part 1224 to form the transparent enclosure part 1224;

Among them, the process of patterning the germ layer of the transparent enclosure part 1224 can be: first, perform an exposure process on the germ layer of the transparent enclosure part 1224, and form an exposed part and a non-exposed part on the germ layer of the transparent enclosure part 1224. The exposed part is exposed to light Irradiation will produce a cross-linking reaction. Then, the transparent enclosure portion 1224 is subjected to a development process, and the non-exposed portions with a low degree of cross-linking can be washed away, while the exposed portions with a high degree of cross-linking will remain to form the transparent enclosure portion 1224 .

The electrochromic material is filled in the hollow area 12241 of the transparent enclosure 1224 to form the electrochromic part 1225 .

The electrochromic material filled in the hollow area 12241 of the transparent enclosure 1224 can be formed by ink jet printing (IJP).

Therefore, the electrochromic portion 1225 can be formed in a simple manner.

In some embodiments, when the display screen 12 is an OLED display screen 12 , a touch structure adhered to the second transparent electrode layer 1223 is formed on a side surface of the second transparent electrode layer 1223 away from the electrochromic layer 1222 Layer 125. The touch structure layer 125 may include a bridge metal layer, an insulation layer and a pattern metal layer.

In some embodiments, the preparation process of the touch structure layer 125 may include the following steps: first forming a metal physical vapor phase film on the surface of the second transparent electrode layer 1223, photoresist exposure, development, metal etching, photoresist Processes such as stripping and cleaning are used to form the bridge layer metal of the required pattern. Secondly, the insulating layer of the required pattern is formed through processes such as chemical vapor deposition of the insulating layer, exposure and development of the photoresist, etching of the insulating layer, and stripping and cleaning of the photoresist. Finally, through processes such as metal PVD film formation, photoresist exposure, development, metal etching, photoresist stripping and cleaning, the pattern layer metal of the required pattern is formed.

Therefore, the touch structure layer 125 and the privacy structure 122 can be integrated to form a TOE structure, which is beneficial to the thin design of the electronic device 100 .

In some embodiments, when the display screen 12 is an OLED display screen 12, a shielding layer 126 bonded to the second transparent electrode layer 1223 is formed on a side surface of the second transparent electrode layer 1223 away from the electrochromic layer 1222. . A touch structure layer 125 bonded to the shielding layer 126 is formed on a side surface of the shielding layer 126 away from the electrochromic layer 1222 . The shielding layer 126 can be formed by coating, and the method of forming the touch structure layer 125 is similar to the above, and will not be described again here. The method of forming the shielding layer 126 is simple. By providing the shielding layer 126, the interference of the second transparent electrode layer 1223 on the touch structure layer 125 can be reduced, which is beneficial to ensuring the touch effect of the touch structure layer 125.

In some embodiments, display screen 12 also includes planarization layer 1214. The flat layer 1214 can be disposed between the display module 121 and the privacy-preventing structure 122 by coating. By providing the flat layer 1214, planarization can be performed, which can provide a relatively flat surface for the electrodes in the subsequent privacy protection structure 122, and can ensure the structural stability of the formed electrode layer.

The following is an introduction to the manufacturing methods of the display screen 12 in other embodiments of the present application.

Please refer to FIGS. 27 to 31 . FIGS. 27 to 31 are schematic diagrams of the manufacturing process of display screens provided by other embodiments of the present application. The manufacturing method of the display screen 12 in the embodiment of the present application includes:

S1: Provide a display module 121; wherein the display module 121 has a display surface 1216;

S2: Form the first transparent electrode layer 1221 on the display surface 1216;

S3: Form the electrochromic layer 1222 on the side of the display surface 1216 and the first transparent electrode layer 1221 away from the display surface 1216; wherein, the electrochromic layer 1222 continuously covers the physical part of the first transparent electrode layer 1221 and the first through hole. 12211. A plurality of first protrusions 12221 arranged at intervals are integrally connected to the surface of the electrochromic layer 1222 facing the first transparent electrode layer 1221. One first protrusion 12221 corresponds to one first through hole 12211. The first The protrusions 12221 are filled in the corresponding first through holes 12211;

The electrochromic layer 1222 can be formed by coating, inkjet printing, exposure, etc.

S4: Form the second transparent electrode layer 1223 on the side of the electrochromic layer 1222 away from the first transparent electrode layer 1221.

The method of forming the second transparent electrode layer 1223 may be physical vapor deposition, chemical vapor deposition, atomic layer deposition, or other methods.

Therefore, the electrochromic layer 1222 and the display surface 1216 can jointly surround the first transparent electrode layer 1221, and filling the first protrusions 12221 into the corresponding first through holes 12211 can improve the reliability of fixing the first transparent electrode layer 1221. property, the side of the first transparent electrode layer 1221 away from the display surface 1216 can also be made flat to facilitate the arrangement of the electrochromic layer 1222.

In some embodiments, the step of forming the first transparent electrode layer 1221 on the display surface 1216 specifically includes:

A first transparent electrode germ layer is formed on the display surface 1216.

The first transparent electrode germ layer may be formed through a sputtering process or a deposition process.

The first transparent electrode germ layer is patterned to form a first transparent electrode layer 1221.

The first transparent electrode germ layer patterning process can sequentially form the first transparent electrode layer 1221 through exposure, development, and etching.

In some embodiments, the step of forming the second transparent electrode layer 1223 on the display surface 1216 specifically includes:

A second transparent electrode germ layer is formed on the display surface 1216.

The second transparent electrode germ layer may be formed through a sputtering process or a deposition process.

The second transparent electrode germ layer is patterned to form a second transparent electrode layer 1223.

The second transparent electrode germ layer patterning process can sequentially form the second transparent electrode layer 1223 through exposure, development, and etching.

In some embodiments, when the display screen 12 is an OLED display screen 12 , a touch structure adhered to the second transparent electrode layer 1223 is formed on a side surface of the second transparent electrode layer 1223 away from the electrochromic layer 1222 Layer 125. The touch structure layer 125 may include a bridge metal layer, an insulation layer and a pattern metal layer.

In some embodiments, the preparation process of the touch structure layer 125 may include the following steps: first forming a metal physical vapor phase film on the surface of the second transparent electrode layer 1223, photoresist exposure, development, metal etching, photoresist Processes such as stripping and cleaning are used to form the bridge layer metal of the required pattern. Secondly, the insulating layer of the required pattern is formed through processes such as chemical vapor deposition of the insulating layer, exposure and development of the photoresist, etching of the insulating layer, and stripping and cleaning of the photoresist. Finally, through processes such as metal PVD film formation, photoresist exposure, development, metal etching, photoresist stripping and cleaning, the pattern layer metal of the required pattern is formed. The method of forming the shielding layer 126 is simple. By providing the shielding layer 126, the interference of the second transparent electrode layer 1223 on the touch structure layer 125 can be reduced, which is beneficial to ensuring the touch effect of the touch structure layer 125.

In some embodiments, when the display screen 12 is an OLED display screen 12, a shielding layer 126 bonded to the second transparent electrode layer 1223 is formed on a side surface of the second transparent electrode layer 1223 away from the electrochromic layer 1222. . A touch structure layer 125 bonded to the shielding layer 126 is formed on a side surface of the shielding layer 126 away from the electrochromic layer 1222 . The shielding layer 126 can be formed by coating, and the method of forming the touch structure layer 125 is similar to the above, and will not be described again here. Therefore, the touch structure layer 125 and the privacy structure 122 can be integrated to form a TOE structure, which is beneficial to the thin design of the electronic device 100 .

In some embodiments, display screen 12 also includes planarization layer 1214. The flat layer 1214 can be disposed between the display module 121 and the privacy-preventing structure 122 by coating. By providing the flat layer 1214, planarization can be performed, which can provide a relatively flat surface for the electrodes in the subsequent privacy protection structure 122, and can ensure the structural stability of the formed electrode layer.

In the description of this specification, specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent substitutions are made to some of the technical features; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions in the embodiments of the present application.

Claims (30)

1. A display screen, characterized in that it includes: A display module, the display module includes a plurality of pixels distributed in an array, the display module has a display surface; Anti-peeping structure, the anti-peeping structure includes an electrochromic layer, a first transparent electrode layer and a second transparent electrode layer; wherein the first transparent electrode layer is stacked on the electrochromic layer and the display surface The second transparent electrode layer is stacked on a side of the electrochromic layer away from the display surface. The electrochromic layer includes a transparent enclosure part and an electrochromic part. The transparent enclosure part The blocking part has a hollow area, the electrochromic part is filled in the hollow area, the vertical projection of the electrochromic part on the display surface overlaps with the vertical projection of the pixel on the display surface, and the The vertical projection of the transparent enclosure portion on the display surface overlaps with the vertical projection of the pixel on the display surface. 2. The display screen according to claim 1, wherein the first transparent electrode layer continuously covers the electrochromic part and the transparent enclosure part; and/or, The second transparent electrode layer continuously covers the electrochromic part and the transparent enclosure part. 3. The display screen according to claim 1 or 2, characterized in that the electrochromic part includes a plurality of first sub-parts; The hollow area includes a plurality of first sub-areas arranged at intervals in the first direction, and each first sub-area is provided with one first sub-section; wherein, The first direction is parallel to the display surface. 4. The display screen according to claim 3, wherein the hollow area further includes a plurality of second sub-areas, the plurality of second sub-areas are arranged at intervals in the second direction, and each of the second sub-areas The second sub-region intersects and is connected to all the first sub-region; The electrochromic part further includes a plurality of second sub-sections, one second sub-section is provided in each second sub-region, and each second sub-section is connected to all of the first sub-sections. All parts intersect; Wherein, the second direction intersects the first direction. 5. The display screen according to any one of claims 3-4, wherein the spacing between two adjacent first sub-parts is w, and the thickness of the electrochromic part is h. , the h and the w satisfy: h/w≥1. 6. The display screen according to any one of claims 1-5, characterized in that the display module includes: A base substrate, an OLED pixel structure layer and an encapsulation layer are stacked in sequence. The OLED pixel structure layer includes the pixel. The first transparent electrode layer is stacked on the encapsulation layer away from the OLED pixel structure layer. One side, and attached to the packaging layer. 7. The display screen according to claim 6, wherein the display screen further comprises: a touch structure layer and a shielding layer, the shielding layer being disposed on the second transparent electrode layer away from the display module. The touch structure layer is formed on one side of the shielding layer away from the display module and is in contact with the surface of the second transparent electrode layer. Surface fit. 8. The display screen according to claim 6, wherein the display screen further comprises: a touch structure layer formed on the second transparent electrode layer away from the display module. one side of the second transparent electrode layer and attached to the surface of the second transparent electrode layer. 9. A display screen, characterized in that it includes: Display module, the display module has a display surface; Anti-peeping structure, the anti-peeping structure includes an electrochromic layer, a first transparent electrode layer and a second transparent electrode layer, the first transparent electrode layer is stacked between the electrochromic layer and the display surface , the second transparent electrode layer is stacked on the side of the electrochromic layer away from the display surface; Wherein, the first transparent electrode layer has a plurality of first through holes arranged at intervals, and the electrochromic layer continuously covers the physical part of the first transparent electrode layer and the first through holes, and the electrochromic layer A plurality of first protrusions arranged at intervals are integrally connected to the surface of the chromic layer facing the first transparent electrode layer. One of the first protrusions corresponds to one of the first through holes. The first protrusions are The protrusions are filled in the corresponding first through holes. 10. The display screen according to claim 9, wherein the plurality of first through holes are arranged at intervals in a first direction, wherein the first direction is parallel to the display surface. 11. The display screen according to claim 9, wherein the plurality of first through holes are distributed in an array. 12. The display screen according to claim 10 or 11, wherein the width of the first through hole is w, the thickness of the electrochromic layer is h, and the h and w satisfy: h /w≥1. 13. The display screen according to any one of claims 9-12, wherein the display module includes a plurality of pixels arranged in an array, and the physical part of the first transparent electrode layer is in the The vertical projection of the display surface overlaps with the vertical projection of the pixel on the display surface, and at least one of the first through holes overlaps with the vertical projection of the pixel on the display surface. 14. The display screen according to any one of claims 9-12, wherein the display module includes a plurality of pixels arranged in an array, and there is a defined area between two adjacent pixels. The vertical projection of the physical part of the first transparent electrode layer on the display surface is located within the defined area, or coincides with the defined area. 15. The display screen according to any one of claims 9-14, wherein the second transparent electrode layer has a plurality of second through holes arranged at intervals, and the electrochromic layer continuously covers all the second through holes. The physical part of the second transparent electrode layer and the second through hole, the surface of the electrochromic layer facing the second transparent electrode layer is integrally connected with a plurality of second protrusions arranged at intervals, one The second protrusion corresponds to one of the second through holes, and the second protrusion is filled in the corresponding second through hole. 16. The display screen according to any one of claims 9-15, characterized in that the display module includes: A base substrate, an OLED pixel structure layer and an encapsulation layer are stacked in sequence. The OLED pixel structure layer includes the pixels. The privacy-preventing structure is stacked on a side of the encapsulation layer away from the OLED pixel structure layer. , and adhere to the packaging layer. 17. The display screen according to claim 16, wherein the display screen further comprises: a touch structure layer and a shielding layer, the shielding layer being disposed on the second transparent electrode layer away from the display module. The touch structure layer is formed on one side of the shielding layer away from the display module and is in contact with the surface of the second transparent electrode layer. Surface fit. 18. The display screen according to claim 16, wherein the display screen further comprises: a touch structure layer, the touch structure layer is formed on the second transparent electrode layer away from the display module. one side of the second transparent electrode layer and attached to the surface of the second transparent electrode layer. 19. A display screen, characterized in that it includes: Display module, the display module has a display surface; Anti-peeping structure, the anti-peeping structure includes an electrochromic layer, a first transparent electrode layer and a second transparent electrode layer, the first transparent electrode layer is stacked between the electrochromic layer and the display surface , the second transparent electrode layer is stacked on the side of the electrochromic layer away from the display surface; Wherein, the second transparent electrode layer has a plurality of second through holes arranged at intervals, and the electrochromic layer continuously covers the physical part of the second transparent electrode layer and the second through holes, and the electrochromic layer A plurality of second protrusions arranged at intervals are integrally connected to the surface of the chromic layer facing the second transparent electrode layer, one of the second protrusions corresponds to one of the second through holes, and the third Two protrusions are filled in the corresponding second through holes. 20. An electronic device, characterized in that it includes: back shell; and The display screen according to any one of claims 1-19, wherein the display screen is installed on the back shell. 21. The electronic device according to claim 20, wherein the back shell includes a first side and a second side arranged in a first direction, and the first side has a key hole; The electronic device further includes a button, and the button is inserted through the key hole; Wherein, the first direction is parallel to the display surface. 22. A method of manufacturing a display screen, characterized by comprising: A display module is provided; wherein the display module includes a plurality of pixels distributed in an array, and the display module has a display surface; Form a first transparent electrode layer on the display surface; An electrochromic layer is formed on the side of the first transparent electrode layer away from the display surface; wherein the electrochromic layer includes a transparent enclosure part and an electrochromic part, and the transparent enclosure part has a hollow area, the electrochromic part is filled in the hollow area, the vertical projection of the electrochromic part on the display surface overlaps with the vertical projection of the pixel on the display surface, and the transparent enclosure part The vertical projection on the display surface overlaps with the vertical projection of the pixel on the display surface; A second transparent electrode layer is formed on a side of the electrochromic layer away from the first transparent electrode layer. 23. The manufacturing method of a display screen according to claim 22, wherein the step of forming an electrochromic layer on a side of the first transparent electrode layer away from the display surface specifically includes: Form a transparent transparent enclosure green layer on the side of the first transparent electrode layer away from the display surface; Patterning the transparent enclosure part green layer to form a transparent enclosure part; The hollow area of the transparent enclosure is filled with electrochromic material to form the electrochromic part. 24. The method of manufacturing a display screen according to claim 22 or 23, wherein the display module includes a base substrate, an OLED pixel structure layer and an encapsulation layer that are stacked in sequence, and the OLED pixel structure layer includes For the pixel, the first transparent electrode layer is stacked on a side of the encapsulation layer away from the OLED pixel structure layer, and is bonded to the encapsulation layer; Form a shielding layer attached to the second transparent electrode layer on a side surface of the second transparent electrode layer away from the electrochromic layer; A touch structure layer bonded to the shielding layer is formed on a side surface of the shielding layer away from the electrochromic layer. 25. The method of manufacturing a display screen according to claim 22 or 23, wherein the display module includes a base substrate, an OLED pixel structure layer and an encapsulation layer that are stacked in sequence, and the OLED pixel structure layer includes For the pixel, the first transparent electrode layer is stacked on a side of the encapsulation layer away from the OLED pixel structure layer, and is bonded to the encapsulation layer; A touch structure layer bonded to the second transparent electrode layer is formed on a side surface of the second transparent electrode layer away from the electrochromic layer. 26. A method of manufacturing a display screen, characterized by comprising: A display module is provided; wherein the display module has a display surface; A first transparent electrode layer is formed on the display surface; wherein the first transparent electrode layer has a plurality of first through holes arranged at intervals; The electrochromic layer is formed on the display surface and the side of the first transparent electrode layer away from the display surface; wherein the electrochromic layer continuously covers the physical part of the first transparent electrode layer and The first through hole, the surface of the electrochromic layer facing the first transparent electrode layer is integrally connected with a plurality of first protrusions arranged at intervals, one first protrusion and one said Corresponding to the first through hole, the first protrusion is filled in the corresponding first through hole; A second transparent electrode layer is formed on a side of the electrochromic layer away from the first transparent electrode layer. 27. The manufacturing method according to claim 26, wherein the step of forming a first transparent electrode layer on the display surface specifically includes: Form a first transparent electrode germ layer on the display surface; The first transparent electrode germ layer is patterned to form a first transparent electrode layer. 28. The manufacturing method according to claim 26 or 27, wherein the step of forming a second transparent electrode layer on a side of the electrochromic layer away from the first transparent electrode layer specifically includes: A second transparent electrode germ layer is formed on a side of the electrochromic layer away from the first transparent electrode layer; The second transparent electrode germ layer is patterned to form a second transparent electrode layer. 29. The manufacturing method of a display screen according to any one of claims 26 to 28, wherein the display module includes a base substrate, an OLED pixel structure layer and an encapsulation layer that are stacked in sequence, and the OLED The pixel structure layer includes the pixel, and the first transparent electrode layer is stacked on a side of the encapsulation layer away from the OLED pixel structure layer and is adhered to the encapsulation layer; Form a shielding layer attached to the second transparent electrode layer on a side surface of the second transparent electrode layer away from the electrochromic layer; A touch structure layer bonded to the shielding layer is formed on a side surface of the shielding layer away from the electrochromic layer. 30. The manufacturing method of a display screen according to any one of claims 26 to 29, wherein the display module includes a base substrate, an OLED pixel structure layer and an encapsulation layer that are stacked in sequence, and the OLED The pixel structure layer includes the pixel, and the first transparent electrode layer is stacked on a side of the encapsulation layer away from the OLED pixel structure layer and is adhered to the encapsulation layer; A touch structure layer bonded to the second transparent electrode layer is formed on a side surface of the second transparent electrode layer away from the electrochromic layer.