CN117545302B - Display panel and display device - Google Patents

Abstract

An embodiment of the present application discloses a display panel and a display device. The display panel includes a plurality of sub-pixels arranged on a base substrate, and the plurality of sub-pixels are used to emit light of different colors to perform image display. The display panel also includes an encapsulation layer and an anti-peeping portion. The encapsulation layer is arranged on a side of the sub-pixel away from the base substrate, and is used to seal the sub-pixel. The anti-peeping portion is arranged on a side of the encapsulation layer away from the sub-pixel and is partially embedded in the encapsulation layer. The plurality of sub-pixels include an anti-peeping sub-pixel. The anti-peeping portion is arranged opposite to the anti-peeping sub-pixel along a first direction. The anti-peeping portion is used to adjust the light emitted by the anti-peeping sub-pixel to control the light emitted by the anti-peeping sub-pixel to overlap with the light emitted by an adjacent sub-pixel in a preset direction, so that the visibility of the adjacent sub-pixel in the preset direction is reduced, thereby enhancing the anti-peeping effect.

Description

Display panel and display device

Technical Field

The present application relates to the field of display technology, and in particular to a display panel and a display device.

Background Art

OLED (Organic Light-Emitting Diode) display panels are gaining more and more importance in the display field due to their advantages of being thin, light, bright, low power, fast response, high definition, and wide color gamut. The active light-emitting characteristics of organic light-emitting diodes give OLED display panels a wider viewing angle, which can generally reach 170 degrees. However, while people enjoy the visual experience brought by a wide viewing angle, they sometimes also hope that the viewing angle of the display panel can be adjusted to a smaller value, so as to effectively protect commercial secrets and personal privacy, and avoid commercial losses or embarrassment caused by the leakage of screen information.

The existing anti-peeping display panel uses an anti-peeping film to prevent peeping. When the anti-peeping function is not needed, the anti-peeping film can only be torn off, which is inconvenient to turn on and off the anti-peeping function. Therefore, how to achieve the anti-peeping function by only adjusting the pixel light in the display panel is an urgent problem to be solved.

Summary of the invention

In view of the shortcomings of the above technical problems, the present application provides a display panel and a display device that can achieve an anti-peeping function by adjusting the direction of pixel light.

An embodiment of the present application can disclose a display panel, including a plurality of sub-pixels arranged on a base substrate, wherein the plurality of sub-pixels are used to emit light of different colors to display images, and the display panel also includes an encapsulation layer and an anti-peeping portion, wherein the encapsulation layer is arranged on a side of the sub-pixels away from the base substrate, and is used to seal the sub-pixels, and the anti-peeping portion is arranged on a side of the encapsulation layer away from the sub-pixels and is partially embedded in the encapsulation layer, the plurality of sub-pixels include an anti-peeping sub-pixel, the anti-peeping portion is arranged opposite to the anti-peeping sub-pixel along a first direction, and the anti-peeping portion is used to adjust the light emitted by the anti-peeping sub-pixel to control the light emitted by the anti-peeping sub-pixel to overlap with the light emitted by an adjacent sub-pixel in a preset direction.

Optionally, the multiple sub-pixels further include a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, wherein one first color sub-pixel, one second color sub-pixel and one third color sub-pixel constitute a pixel unit, each pixel unit is provided with at least one anti-peeping sub-pixel, and in each pixel unit the anti-peeping sub-pixel is provided between any two adjacent sub-pixels.

Optionally, the display panel includes a first display mode and a second display mode. In the first display mode, the first color sub-pixel, the second color sub-pixel and the third color sub-pixel emit light to display an image, and the anti-peeping sub-pixel stops emitting light. In the second display mode, the first color sub-pixel, the second color sub-pixel, the third color sub-pixel and the anti-peeping sub-pixel all emit light, and the light emitted by the anti-peeping sub-pixel is transmitted to the preset direction via the anti-peeping portion to control the light emitted by the anti-peeping sub-pixel to overlap with the light emitted by an adjacent sub-pixel in the preset direction.

Optionally, in each of the pixel units, the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are arranged adjacent to each other in sequence, and the anti-peeping sub-pixel includes a first anti-peeping sub-pixel and a second anti-peeping sub-pixel, and the anti-peeping sub-pixel is arranged between the first color sub-pixel and the second color sub-pixel, the first anti-peeping sub-pixel is arranged adjacent to the first color sub-pixel, and the first anti-peeping sub-pixel and the first color sub-pixel emit light of the same color, the second anti-peeping sub-pixel is arranged adjacent to the second color sub-pixel, and the second anti-peeping sub-pixel and the second color sub-pixel emit light of the same color; or, the anti-peeping sub-pixel is arranged between the second color sub-pixel and the third color sub-pixel, the first anti-peeping sub-pixel is arranged adjacent to the second color sub-pixel, and the first anti-peeping sub-pixel and the second color sub-pixel emit light of the same color, the second anti-peeping sub-pixel is arranged adjacent to the third color sub-pixel, and the second anti-peeping sub-pixel and the third color sub-pixel emit light of the same color.

Optionally, the anti-peeping part includes a light-shielding layer and a reflecting unit, the light-shielding layer is stacked on the side of the encapsulation layer away from the base substrate, the light-shielding layer is used to block the light emitted by the anti-peeping sub-pixel, the light-shielding layer is arranged opposite to the anti-peeping sub-pixel along a first direction, and the projection of the light-shielding layer along the first direction completely covers the light-emitting surface of the anti-peeping sub-pixel, the reflecting unit is embedded in the encapsulation layer along the first direction, the pixel unit also includes a pixel definition layer, the pixel definition layer is arranged between any two adjacent sub-pixels along the second direction, and is used to isolate the adjacent sub-pixels, the reflecting unit is arranged opposite to the pixel definition layer between the first anti-peeping sub-pixel and the second anti-peeping sub-pixel along the first direction, and is used to reflect the light emitted by the anti-peeping sub-pixel, and the second direction is perpendicular to the first direction.

Optionally, the reflecting unit includes a first reflecting layer and a second reflecting layer, the first reflecting layer extends along the second direction and is arranged on the side of the light-shielding layer adjacent to the base substrate, the second reflecting layer is arranged on the side of the first reflecting layer adjacent to the base substrate, and the second reflecting layer is arranged along the first direction opposite to the pixel definition layer between the first anti-peeping sub-pixel and the second anti-peeping sub-pixel, for reflecting the light emitted by the anti-peeping sub-pixel.

Optionally, the first reflective layer includes a first sub-reflector and a second sub-reflector, the first sub-reflector and the second sub-reflector are symmetrically arranged with the first direction as the symmetry axis, the first sub-reflector is arranged opposite to the first anti-peep sub-pixel along the first direction, and the second sub-reflector is arranged opposite to the second anti-peep sub-pixel along the first direction, the cross-section of the first sub-reflector and the second sub-reflector is a right-angled triangle, a right-angled side of the first sub-reflector is adjacent to and parallel to the light-shielding layer, and a right-angled side of the second sub-reflector is adjacent to and parallel to the light-shielding layer.

Optionally, the first reflective layer includes a first sub-reflector and a second sub-reflector, the first sub-reflector and the second sub-reflector are symmetrically arranged with the first direction as the symmetry axis, the first sub-reflector is arranged opposite to the first anti-peeping sub-pixel along the first direction, and the second sub-reflector is arranged opposite to the second anti-peeping sub-pixel along the first direction, the cross-sections of the first sub-reflector and the second sub-reflector are right-angled trapezoids, the first bottom edge of the first sub-reflector is adjacent to and parallel to the light-shielding layer, the second bottom edge of the first sub-reflector is adjacent to one side of the anti-peeping sub-pixel, the first bottom edge of the second sub-reflector is adjacent to and parallel to the light-shielding layer, the second bottom edge of the second sub-reflector is adjacent to one side of the anti-peeping sub-pixel, and the length of the first bottom edge is greater than the length of the second bottom edge.

Optionally, the second reflective layer includes a plurality of reflectors arranged in sequence along the first direction, and the cross-sectional areas of the plurality of reflectors gradually increase along the first direction to control the second reflective layer to receive light and gradually increase the angle range of light reflected by the second reflective layer.

The embodiment of the present application further discloses a display device, which includes a housing and the aforementioned display panel, wherein the housing is used to carry the display panel.

Compared with the problems in the prior art, in the embodiments of the present application, an anti-peeping sub-pixel is set, and an anti-peeping portion is set opposite the anti-peeping sub-pixel along a first direction to adjust the light emitted by the anti-peeping sub-pixel, so as to control the light emitted by the anti-peeping sub-pixel to overlap with the light emitted by an adjacent sub-pixel in a preset direction, thereby reducing the visibility of the adjacent sub-pixels in the preset direction, thereby enhancing the anti-peeping effect.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic structural diagram of a display device provided by an embodiment of the present application;

FIG2 is a schematic structural diagram of a cross section of the display panel along line A-A as shown in FIG1 provided in the first embodiment of the present application;

FIG3 is a schematic structural diagram of a cross section of the display panel along line A-A as shown in FIG1 provided in a second embodiment of the present application;

FIG4 is a schematic structural diagram of a cross section of the display panel along line A-A as shown in FIG1 provided in a third embodiment of the present application;

FIG5 is a schematic structural diagram of a cross section of the display panel along line A-A as shown in FIG1 provided in a fourth embodiment of the present application;

FIG6 is a schematic structural diagram of a cross section of the display panel along line A-A as shown in FIG1 provided in the fifth embodiment of the present application.

Description of reference numerals:

Display device-1, display panel-10, shell-20, base substrate-100, driving circuit layer-110, pixel unit-120, first color sub-pixel-121, second color sub-pixel-122, third color sub-pixel-123, anti-peep sub-pixel-124, first anti-peep sub-pixel-1241, second anti-peep sub-pixel-1242, first electrode-125, second electrode-126, pixel definition layer-127, encapsulation layer-130, anti-peep part-140, reflection unit-142, first reflection layer-1411, second reflection layer-1412, reflector-A, shading layer-142, first sub-reflector-1411a, second sub-reflector-1411a, dividing line-DL.

DETAILED DESCRIPTION

In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be used to implement. The serial numbers for the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, include direct and indirect connections (couplings). The directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. It should be noted that the terms "first", "second", etc. in the specification, claims, and drawings of the present application are used to distinguish different objects, rather than to describe a specific order.

In addition, the terms "include", "may include", "contain", or "may include" used in the present application indicate the existence of the corresponding functions, operations, elements, etc. disclosed, and do not limit one or more other functions, operations, elements, etc. In addition, the terms "include" or "contain" indicate the existence of the corresponding features, numbers, steps, operations, elements, components, or combinations thereof disclosed in the specification, and do not exclude the existence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, and are intended to cover non-exclusive inclusions. In addition, when describing the embodiments of the present application, "may" is used to indicate "one or more embodiments of the present application". And, the term "exemplary" is intended to refer to an example or illustration.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

Please refer to FIG. 1 , which is a schematic structural diagram of a display device 1 provided in an embodiment of the present application.

As shown in FIG1 , the display device 1 includes a display panel 10 and a housing 20, wherein the display device 1 may be, but is not limited to, a smart phone, a portable phone, a navigation device, a television, a car audio body, a laptop, a tablet computer, a portable multimedia player, a personal digital assistant, and the like, and it is understood that the functional type of the display device 1 should not be a limitation on the display device 1 provided in the embodiment of the present application. The display panel 10 may be an organic light emitting diode (OLED) display panel, and it is understood that in other embodiments of the present application, the display panel 10 may also be other types of display panels, such as a liquid crystal display panel (LCD), a quantum dot display panel (QLED), and the like, and the present application does not limit this. The material of the housing 20 may be metal, plastic, composite material, or other materials, and the present application does not limit this, and the housing 20 is used to accommodate and carry the display panel 10.

Please refer to FIG. 2 , which is a schematic structural diagram of a cross section of the display panel 10 along line A-A as shown in FIG. 1 provided in the first embodiment of the present application.

As shown in FIG2 , the display panel 10 includes a base substrate 100, a driving circuit layer 110, a plurality of pixel units 120, and an encapsulation layer 130, which are sequentially stacked along a first direction F1, wherein the driving circuit layer 110 is used to drive the pixel units 120 to display images, and the encapsulation layer 130 is used to encapsulate the plurality of pixel units 120, which can prevent the organic light-emitting materials in the pixel units 120 from being invading by water and oxygen and becoming ineffective. The display panel 10 also includes a peep-proof portion 140, which is stacked on the side of the encapsulation layer 130 away from the base substrate 100 and partially embedded in the encapsulation layer 130, and is used to adjust the direction of the light emitted from the pixel units 120 at a preset time.

Among them, each pixel unit 120 includes a first color sub-pixel 121, a second color sub-pixel 122 and a third color sub-pixel 123, and the first color sub-pixel 121, the second color sub-pixel 122 and the third color sub-pixel 123 are arranged adjacent to each other in sequence along the second direction F2, and the first color sub-pixel 121, the second color sub-pixel 122 and the third color sub-pixel 123 are used to emit light of different colors to perform image display. The pixel unit 120 also includes a first electrode 125, a second electrode 126 and a pixel definition layer 127, and the first electrode 125 and the second electrode 126 are relatively arranged on both sides of the sub-pixel along the first direction F1, and the first electrode 125 and the second electrode 126 cooperate with each other to provide a driving voltage for the sub-pixel, and the pixel definition layer 127 is arranged between any two adjacent sub-pixels for isolating adjacent sub-pixels.

In this embodiment, the material of the first electrode 125 can be a conductive metal oxide, such as indium tin oxide (ITO), the material of the second electrode 126 can be a metal material, such as aluminum, gold, silver, magnesium-silver alloy, etc., the material of the pixel definition layer 127 can be organic polyimide, or inorganic SiNx, SiOx or SiOxNx, etc. The materials of the first electrode 125, the second electrode 126 and the pixel definition layer 127 can also be other materials, which is not limited in this application.

Specifically, the pixel unit 120 further includes at least one anti-peeping sub-pixel 124, which is disposed between any two adjacent sub-pixels, for example, between the first color sub-pixel 121 and the second color sub-pixel 122 or between the second color sub-pixel 122 and the third color sub-pixel 123. The anti-peeping sub-pixel 124 is used to emit light at a preset time, which overlaps with the light of the adjacent sub-pixel in a preset direction, so that the visibility of the adjacent sub-pixel in the preset direction is reduced, thereby achieving an anti-peeping effect. The preset direction is the direction of the angle between the first direction F1 and the second direction F2.

The anti-peeping sub-pixel 124 includes a first anti-peeping sub-pixel 1241 and a second anti-peeping sub-pixel 1242. A pixel definition layer 127 is provided between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242. The pixel definition layer 127 is provided between the first anti-peeping sub-pixel 1241 and the first color sub-pixel 121, and between the second anti-peeping sub-pixel 1242 and the second color sub-pixel 122. In addition, the first anti-peeping sub-pixel 1241 and the first color sub-pixel 121 emit light of the same color, and the second anti-peeping sub-pixel 1242 and the second color sub-pixel 122 emit light of the same color.

The anti-peeping portion 140 is stacked on the side of the encapsulation layer 130 away from the base substrate 100 and partially embedded in the encapsulation layer 130. The anti-peeping portion 140 specifically includes a reflection unit 141 and a light shielding layer 142.

The light shielding layer 142 is disposed on the side of the encapsulation layer 130 away from the base substrate 100, and the light shielding layer 142 is disposed opposite to the anti-peeping sub-pixel 124 along the first direction F1. The projection of the light shielding layer 142 along the first direction F1 completely covers the light-emitting surface of the anti-peeping sub-pixel 124. In other words, the length of the projection of the light shielding layer 142 along the first direction F1 on the base substrate 100 in the second direction F2 is greater than or equal to the distance between the pixel definition layers 127 on the two adjacent sides of the anti-peeping sub-pixel 124. The light shielding layer 142 is used to shield part of the light emitted by the anti-peeping sub-pixel 124.

The reflective unit 141 is disposed along the first direction F1 on the side of the light shielding layer 142 adjacent to the base substrate 100 and embedded in the encapsulation layer 130. The reflective unit 141 is used to reflect part of the light emitted by the anti-peeping sub-pixel 124. In addition, the thermal conductivity of the reflective unit 141 is less than a preset threshold value, and is used to absorb the heat of the light shielding layer 142 and the adjacent layer structure, thereby achieving a cooling effect.

In this embodiment, the material of the shading layer 142 can be chromium, chromium oxide, black resin and other materials, and the material of the reflecting unit 141 can be porous silicon material. The porous silicon material has good reflective properties, and the porous structure makes the porous silicon material have a lower thermal conductivity, that is, the porous silicon material has good cooling properties. Of course, the shading layer 142 and the reflecting unit 141 can also be set to other materials according to specific needs, and this application is not limited.

When ambient light irradiates the light shielding layer 142, the temperature of the light shielding layer 142 will gradually increase, and the light shielding layer 142 will transfer heat to the reflective unit 141. Since the reflective unit 141 has a low thermal conductivity, it can absorb the heat of the light shielding layer 142 and inhibit the transfer of heat, thereby preventing the heat from being transferred to the adjacent film layer structure, thereby achieving a cooling effect, further avoiding the display panel 10 from increasing power consumption and poor display effects due to temperature increases. Similarly, when the anti-peep sub-pixel 124 emits light to the reflective unit 141, it will transfer heat to the reflective unit 141. The reflective unit 141 can also absorb heat and inhibit the continued transfer of heat, thereby achieving a cooling effect.

Specifically, the reflecting unit 141 includes a first reflecting layer 1411 and a second reflecting layer 1412. The first reflecting layer 1411 extends along the second direction F2 and is arranged on the side of the light shielding layer 142 adjacent to the base substrate 100. The cross-sectional shape of the first reflecting layer 1411 is rectangular, and the first reflecting layer 1411 is arranged opposite to the anti-peeping sub-pixel 124 along the first direction F1. The length of the first reflecting layer 1411 along the second direction F2 is less than or equal to the length of the light shielding layer 142 along the second direction F2.

The second reflective layer 1412 extends along the first direction F1 and is arranged on a side of the first reflective layer 1411 adjacent to the base substrate 100. The second reflective layer 1412 is arranged along the first direction F1 opposite to the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242. The second reflective layer 1412 includes a plurality of reflectors A arranged in sequence along the first direction F1. The cross-section of the reflectors A is diamond-shaped. The cross-sectional areas of the plurality of reflectors A gradually increase along the first direction F1, so that the second reflective layer 1412 can reflect light received at different angles to a preset direction, thereby enhancing the light intensity of the anti-peeping sub-pixel 124 in the preset direction.

In an exemplary embodiment, the number of reflectors A in the second reflective layer 1412 can be set to 5, and the cross-sectional areas of the 5 reflectors A along the first direction F1 gradually increase. The reflector A with the largest cross-sectional area, that is, the fifth reflector A, receives light in a range greater than that of the first reflector A to the fourth reflector A. At the same time, the fifth reflector A reflects light at a larger angle, that is, the fifth reflector A reflects light in a wider range. Therefore, the range of light received by the second reflective layer 1412 and the angle range of light reflected by the second reflective layer 1412 can be adjusted by adjusting the number of reflectors A in the second reflective layer 1412. Of course, the number of reflectors A can also be set according to specific needs, and the present application does not impose any restrictions on this.

In an exemplary embodiment, the length of the second reflective layer 1412 along the first direction F1 is less than or equal to the length of the encapsulation layer 130 along the first direction F1, that is, the second reflective layer 1412 can be connected to the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1, or can be arranged at a preset distance from the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1. Of course, the length of the second reflective layer 1412 along the first direction F1 can also be set according to specific needs, and the present application does not impose any restrictions on this.

By setting the first reflective layer 1411 and the second reflective layer 1412, the light emitted by the anti-peeping sub-pixel 124 outside the preset direction is transmitted to the preset direction through the first reflective layer 1411 and/or the second reflective layer 1412, thereby enhancing the intensity of the light of the anti-peeping sub-pixel 124 in the preset direction, and further enhancing the degree of light mixing between the anti-peeping sub-pixel 124 and the adjacent sub-pixels in the preset direction, thereby enhancing the anti-peeping effect.

The display panel 10 includes a first display mode and a second display mode when performing image display. In the first display mode, the first color sub-pixel 121 , the second color sub-pixel 122 , and the third color sub-pixel 123 emit light to perform image display.

In the second display mode, the first color sub-pixel 121, the second color sub-pixel 122, the third color sub-pixel and the anti-peeping sub-pixel 124 all emit light, and the light-shielding layer 142 blocks the light of the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1. The image of the display panel 10 under the main viewing angle can be clearly displayed, and the light of the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the preset direction overlaps with the light of the adjacent sub-pixel in the preset direction. For example, when the first anti-peeping sub-pixel 1241 is arranged adjacent to the first color sub-pixel 121, the light emitted by the first anti-peeping sub-pixel along a preset direction coincides with the light emitted by the first color sub-pixel 121 in the preset direction, that is, the light of the first color sub-pixel 121 and the first anti-peeping sub-pixel 1241 in the preset direction are mixed, so that the visibility of the display panel 10 in the preset direction is reduced, that is, the visibility of the area outside the main viewing angle of the display panel 10 is reduced, thereby playing an anti-peeping role, where the main viewing angle is the viewing angle direction of the user looking at the display panel along the first direction F1.

Please refer to FIG3 , which is a schematic structural diagram of a cross section of the display panel 10 along line A-A as shown in FIG1 provided in a second embodiment of the present application.

As shown in FIG3 , the display panel 10 includes a base substrate 100, a driving circuit layer 110, a plurality of pixel units 120, and an encapsulation layer 130, which are sequentially stacked along a first direction F1. The display panel 10 also includes an anti-peeping portion 140, which is stacked on a side of the encapsulation layer 130 away from the base substrate 100 and partially embedded in the encapsulation layer 130.

Among them, each pixel unit 120 includes a first color sub-pixel 121, a second color sub-pixel 122 and a third color sub-pixel 123, and the first color sub-pixel 121, the second color sub-pixel 122 and the third color sub-pixel 123 are arranged in sequence along the second direction F2. The first color sub-pixel 121, the second color sub-pixel 122 and the third color sub-pixel 123 are used to emit light of different colors to perform image display. The pixel unit 120 also includes a first electrode 125, a second electrode 126 and a pixel definition layer 127. The first electrode 125 and the second electrode 126 are relatively arranged on both sides of the sub-pixel along the first direction F1. The first electrode 125 and the second electrode 126 cooperate with each other to provide a driving voltage for the sub-pixel. The pixel definition layer 127 is arranged between any two adjacent sub-pixels to isolate adjacent sub-pixels.

Specifically, the pixel unit 120 further includes at least one anti-peeping sub-pixel 124, which is disposed between any two adjacent sub-pixels, for example, between the first color sub-pixel 121 and the second color sub-pixel 122 or between the second color sub-pixel 122 and the third color sub-pixel 123. The anti-peeping sub-pixel 124 is used to emit light at a preset time, which overlaps with the light of the adjacent sub-pixel in a preset direction, so that the visibility of the adjacent sub-pixel in the preset direction is reduced, thereby achieving an anti-peeping effect. The preset direction is the direction of the angle between the first direction F1 and the second direction F2.

The anti-peeping sub-pixel 124 includes a first anti-peeping sub-pixel 1241 and a second anti-peeping sub-pixel 1242, and a pixel definition layer 127 is provided between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242. Meanwhile, a pixel definition layer 127 is provided between the first anti-peeping sub-pixel 1241 and the first color sub-pixel 121, and between the second anti-peeping sub-pixel 1242 and the second color sub-pixel 122.

The difference between this embodiment and the first embodiment is that the structure of the peep-proof part 140 is different. The peep-proof part 140 is stacked on the side of the encapsulation layer 130 away from the base substrate 100 and partially embedded in the encapsulation layer 130. The peep-proof part 140 specifically includes a reflection unit 141 and a light shielding layer 142.

The light shielding layer 142 is disposed on the side of the encapsulation layer 130 away from the base substrate 100, and the light shielding layer 142 is disposed opposite to the anti-peeping sub-pixel 124 along the first direction F1. The projection of the light shielding layer 142 along the first direction F1 completely covers the light-emitting surface of the anti-peeping sub-pixel 124. In other words, the length of the projection of the light shielding layer 142 along the first direction F1 on the base substrate 100 in the second direction F2 is greater than or equal to the distance between the pixel definition layers 127 on the two adjacent sides of the anti-peeping sub-pixel 124. The light shielding layer 142 is used to shield part of the light emitted by the anti-peeping sub-pixel 124.

The reflective unit 141 is disposed along the first direction F1 on the side of the light shielding layer 142 adjacent to the base substrate 100 and embedded in the encapsulation layer 130. The reflective unit 141 is used to reflect part of the light emitted by the anti-peeping sub-pixel 124. In addition, the thermal conductivity of the reflective unit 141 is less than a preset threshold value, and is used to absorb the heat of the light shielding layer 142 and the adjacent layer structure, thereby achieving a cooling effect.

In this embodiment, the material of the shading layer 142 can be chromium, chromium oxide, black resin and other materials, and the material of the reflecting unit 141 can be porous silicon material. The porous silicon material has good reflective properties, and the porous structure makes the porous silicon material have a lower thermal conductivity, that is, the porous silicon material has good cooling properties. Of course, the shading layer 142 and the reflecting unit 141 can also be set to other materials according to specific needs, and this application is not limited.

When ambient light irradiates the light shielding layer 142, the temperature of the light shielding layer 142 will gradually increase, and the light shielding layer 142 will transfer heat to the reflective unit 141. Since the reflective unit 141 has a low thermal conductivity, it can absorb the heat of the light shielding layer 142 and inhibit the transfer of heat, thereby preventing the heat from being transferred to the adjacent film layer structure, thereby achieving a cooling effect, further avoiding the display panel 10 from increasing power consumption and poor display effects due to temperature increases. Similarly, when the anti-peep sub-pixel 124 emits light to the reflective unit 141, it will transfer heat to the reflective unit 141. The reflective unit 141 can also absorb heat and inhibit the continued transfer of heat, thereby achieving a cooling effect.

Specifically, the reflecting unit 141 includes a first reflecting layer 1411 and a second reflecting layer 1412. The first reflecting layer 1411 extends along the second direction F2 and is arranged on the side of the light shielding layer 142 adjacent to the base substrate 100. The cross-sectional shape of the first reflecting layer 1411 is rectangular, and the first reflecting layer 1411 is arranged opposite to the anti-peeping sub-pixel 124 along the first direction F1. The length of the first reflecting layer 1411 along the second direction F2 is less than or equal to the length of the light shielding layer 142 along the second direction F2.

The second reflective layer 1412 extends along the first direction F1 and is disposed on the side of the first reflective layer 1411 adjacent to the base substrate 100. The second reflective layer 1412 is disposed along the first direction F1 directly opposite to the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242. The second reflective layer 1412 includes a plurality of reflectors A disposed sequentially along the first direction F1. The cross-section of the reflectors A is trapezoidal, and the cross-sectional areas of the plurality of reflectors A gradually increase along the first direction F1. By arranging a plurality of reflectors A of different sizes on the second reflective layer 1412, the second reflective layer 1412 can reflect light received at different angles to a preset direction, thereby enhancing the light intensity of the anti-peeping sub-pixel 124 in the preset direction.

In an exemplary embodiment, the number of reflectors A in the second reflective layer 1412 can be set to 5, and the cross-sectional areas of the 5 reflectors A along the first direction F1 gradually increase. The reflector A with the largest cross-sectional area, that is, the fifth reflector A, receives light in a range greater than that of the first reflector A to the fourth reflector A. At the same time, the fifth reflector A reflects light at a larger angle, that is, the fifth reflector A reflects light in a wider range. Therefore, the range of light received by the second reflective layer 1412 and the angle range of light reflected by the second reflective layer 1412 can be adjusted by adjusting the number of reflectors A in the second reflective layer 1412. Of course, the number of reflectors A can also be set according to specific needs, and the present application does not impose any restrictions on this.

In an exemplary embodiment, the length of the second reflective layer 1412 along the first direction F1 is less than or equal to the length of the encapsulation layer 130 along the first direction F1, that is, the second reflective layer 1412 can be connected to the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1, or can be arranged at a preset distance from the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1. Of course, the length of the second reflective layer 1412 along the first direction F1 can also be set according to specific needs, and the present application does not impose any restrictions on this.

By setting the first reflective layer 1411 and the second reflective layer 1412, the light emitted by the anti-peeping sub-pixel 124 outside the preset direction is transmitted to the preset direction through the first reflective layer 1411 and/or the second reflective layer 1412, thereby enhancing the intensity of the light of the anti-peeping sub-pixel 124 in the preset direction, and further enhancing the degree of light mixing between the anti-peeping sub-pixel 124 and the adjacent sub-pixels in the preset direction, thereby enhancing the anti-peeping effect.

The display panel 10 includes a first display mode and a second display mode when performing image display. In the first display mode, the first color sub-pixel 121 , the second color sub-pixel 122 , and the third color sub-pixel 123 emit light to perform image display.

In the second display mode, the first color sub-pixel 121, the second color sub-pixel 122, the third color sub-pixel and the anti-peeping sub-pixel 124 all emit light, and the light-shielding layer 142 blocks the light of the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1. The image of the display panel 10 at the main viewing angle can be clearly displayed, and the light of the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the preset direction overlaps with the light of the adjacent sub-pixel in the preset direction. For example, when the first anti-peeping sub-pixel 1241 is arranged adjacent to the first color sub-pixel 121, the light emitted by the first anti-peeping sub-pixel along a preset direction coincides with the light emitted by the first color sub-pixel 121 in the preset direction, that is, the light of the first color sub-pixel 121 and the first anti-peeping sub-pixel 1241 in the preset direction are mixed, so that the visibility of the display panel 10 in the preset direction is reduced, that is, the visibility of the area outside the main viewing angle of the display panel 10 is reduced, thereby playing an anti-peeping role, wherein the main viewing angle is the viewing direction of the user looking at the display panel.

Please refer to FIG. 4 , which is a schematic structural diagram of a cross section of the display panel 10 along line A-A as shown in FIG. 1 provided in a third embodiment of the present application.

As shown in FIG4 , the display panel 10 includes a base substrate 100, a driving circuit layer 110, a plurality of pixel units 120, and an encapsulation layer 130, which are sequentially stacked along a first direction F1. The display panel 10 also includes an anti-peeping portion 140, which is stacked on a side of the encapsulation layer 130 away from the base substrate 100 and partially embedded in the encapsulation layer 130.

Among them, each pixel unit 120 includes a first color sub-pixel 121, a second color sub-pixel 122 and a third color sub-pixel 123, and the first color sub-pixel 121, the second color sub-pixel 122 and the third color sub-pixel 123 are arranged in sequence along the second direction F2. The first color sub-pixel 121, the second color sub-pixel 122 and the third color sub-pixel 123 are used to emit light of different colors to perform image display. The pixel unit 120 also includes a first electrode 125, a second electrode 126 and a pixel definition layer 127. The first electrode 125 and the second electrode 126 are relatively arranged on both sides of the sub-pixel along the first direction F1. The first electrode 125 and the second electrode 126 cooperate with each other to provide a driving voltage for the sub-pixel. The pixel definition layer 127 is arranged between any two adjacent sub-pixels to isolate adjacent sub-pixels.

Specifically, the pixel unit 120 further includes at least one anti-peeping sub-pixel 124, which is disposed between any two adjacent sub-pixels, such as between the first color sub-pixel 121 and the second color sub-pixel 122 or between the second color sub-pixel 122 and the third color sub-pixel 123. The anti-peeping sub-pixel 124 is used to emit light at a preset time, which overlaps with the light of the adjacent sub-pixel in a preset direction, so that the visibility of the adjacent sub-pixel in the preset direction is reduced, thereby achieving an anti-peeping effect. The preset direction is the direction of the angle between the first direction F1 and the second direction F2.

The anti-peeping sub-pixel 124 includes a first anti-peeping sub-pixel 1241 and a second anti-peeping sub-pixel 1242, and a pixel definition layer 127 is provided between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242. Meanwhile, a pixel definition layer 127 is provided between the first anti-peeping sub-pixel 1241 and the first color sub-pixel 121, and between the second anti-peeping sub-pixel 1242 and the second color sub-pixel 122.

The difference between this embodiment and the first embodiment is that the structure of the peep-proof part 140 is different. The peep-proof part 140 is stacked on the side of the encapsulation layer 130 away from the base substrate 100 and partially embedded in the encapsulation layer 130. The peep-proof part 140 specifically includes a reflection unit 141 and a light shielding layer 142.

The light shielding layer 142 is disposed on the side of the encapsulation layer 130 away from the base substrate 100, and the light shielding layer 142 is disposed opposite to the anti-peeping sub-pixel 124 along the first direction F1. The projection of the light shielding layer 142 along the first direction F1 completely covers the light-emitting surface of the anti-peeping sub-pixel 124. In other words, the length of the projection of the light shielding layer 142 along the first direction F1 on the base substrate 100 in the second direction F2 is greater than or equal to the distance between the pixel definition layers 127 on the two adjacent sides of the anti-peeping sub-pixel 124. The light shielding layer 142 is used to shield part of the light emitted by the anti-peeping sub-pixel 124.

The reflective unit 141 is disposed along the first direction F1 on the side of the light shielding layer 142 adjacent to the base substrate 100 and embedded in the encapsulation layer 130. The reflective unit 141 is used to reflect part of the light emitted by the anti-peeping sub-pixel 124. In addition, the thermal conductivity of the reflective unit 141 is less than a preset threshold value, and is used to absorb the heat of the light shielding layer 142 and the adjacent layer structure, thereby achieving a cooling effect.

In this embodiment, the material of the shading layer 142 can be chromium, chromium oxide, black resin and other materials, and the material of the reflecting unit 141 can be porous silicon material. The porous silicon material has good reflective properties, and the porous structure makes the porous silicon material have a lower thermal conductivity, that is, the porous silicon material has good cooling properties. Of course, the shading layer 142 and the reflecting unit 141 can also be set to other materials according to specific needs, and this application is not limited.

When ambient light irradiates the light shielding layer 142, the temperature of the light shielding layer 142 will gradually increase, and the light shielding layer 142 will transfer heat to the reflective unit 141. Since the reflective unit 141 has a low thermal conductivity, it can absorb the heat of the light shielding layer 142 and inhibit the transfer of heat, thereby preventing the heat from being transferred to the adjacent film layer structure, thereby achieving a cooling effect, further avoiding the display panel 10 from increasing power consumption and poor display effects due to temperature increases. Similarly, when the anti-peep sub-pixel 124 emits light to the reflective unit 141, it will transfer heat to the reflective unit 141. The reflective unit 141 can also absorb heat and inhibit the continued transfer of heat, thereby achieving a cooling effect.

Specifically, the reflecting unit 141 includes a first reflecting layer 1411 and a second reflecting layer 1412. The first reflecting layer 1411 extends along the second direction F2 and is arranged on the side of the light-shielding layer 142 adjacent to the base substrate 100. The first reflecting layer 1411 is arranged opposite to the anti-peeping sub-pixel 124 along the first direction F1. The length of the first reflecting layer 1411 along the second direction F2 is less than or equal to the length of the light-shielding layer 142 along the second direction F2.

The first reflective layer 1411 includes a first sub-reflective element 1411a and a second sub-reflective element 1411b. The first sub-reflective element 1411a and the second sub-reflective element 1411b are symmetrically arranged with the first direction F1 as the symmetry axis. The first sub-reflective element 1411a is arranged opposite to the first anti-peeping sub-pixel 1241 along the first direction F1, and the second sub-reflective element 1411b is arranged opposite to the second anti-peeping sub-pixel 1242 along the first direction F1. The first sub-reflector 1411a and the second sub-reflector 1411b have a right-angled triangle cross section, a right-angled side of the first sub-reflector 1411a is adjacent and parallel to the light shielding layer 142, and the angle α between the right-angled side and the hypotenuse is less than or equal to 45 degrees, and a right-angled side of the second sub-reflector 1411b is adjacent and parallel to the light shielding layer 142, and the angle α between the right-angled side and the hypotenuse is less than or equal to 45 degrees. By setting the cross-sectional shape of the first reflective layer 1411 to two right-angled triangles, the first reflective layer 1411 can reflect the light received by the self-protection sub-pixel 124 more concentratedly to the second reflective layer 1412. Of course, the angle α between the right-angled side and the hypotenuse can also be set to other degrees according to specific needs, and the present application does not limit this.

The second reflective layer 1412 extends along the first direction F1 and is disposed on the side of the first reflective layer 1411 adjacent to the base substrate 100. The second reflective layer 1412 is disposed along the first direction F1 directly opposite to the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242. The second reflective layer 1412 includes a plurality of reflectors A disposed sequentially along the first direction F1. The cross-section of the reflectors A is rhombus-shaped, or may be other quadrilaterals such as a trapezoid or other polygons. The cross-sectional areas of the plurality of reflectors A gradually increase along the first direction F1. By arranging a plurality of reflectors A of different sizes on the second reflective layer 1412, the second reflective layer 1412 can reflect light received at different angles to a preset direction, thereby enhancing the light intensity of the anti-peeping sub-pixel 124 in the preset direction.

In an exemplary embodiment, the number of reflectors A in the second reflective layer 1412 can be set to 5, and the cross-sectional areas of the 5 reflectors A along the first direction F1 gradually increase. The reflector A with the largest cross-sectional area, that is, the fifth reflector A, receives light in a range greater than that of the first reflector A to the fourth reflector A. At the same time, the fifth reflector A reflects light at a larger angle, that is, the fifth reflector A reflects light in a wider range. Therefore, the range of light received by the second reflective layer 1412 and the angle range of light reflected by the second reflective layer 1412 can be adjusted by adjusting the number of reflectors A in the second reflective layer 1412. Of course, the number of reflectors A can also be set according to specific needs, and the present application does not impose any restrictions on this.

In an exemplary embodiment, the length of the second reflective layer 1412 along the first direction F1 is less than or equal to the length of the encapsulation layer 130 along the first direction F1, that is, the second reflective layer 1412 can be connected to the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1, or can be arranged at a preset distance from the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1. Of course, the length of the second reflective layer 1412 along the first direction F1 can also be set according to specific needs, and the present application does not impose any restrictions on this.

By setting the first reflective layer 1411 and the second reflective layer 1412, the light emitted by the anti-peeping sub-pixel 124 outside the preset direction is transmitted to the preset direction through the first reflective layer 1411 and/or the second reflective layer 1412, thereby enhancing the intensity of the light of the anti-peeping sub-pixel 124 in the preset direction, and further enhancing the degree of light mixing between the anti-peeping sub-pixel 124 and the adjacent sub-pixels in the preset direction, thereby enhancing the anti-peeping effect.

The display panel 10 includes a first display mode and a second display mode when performing image display. In the first display mode, the first color sub-pixel 121 , the second color sub-pixel 122 , and the third color sub-pixel 123 emit light to perform image display.

In the second display mode, the first color sub-pixel 121, the second color sub-pixel 122, the third color sub-pixel and the anti-peeping sub-pixel 124 all emit light, and the light shielding layer 142 blocks the light of the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1. The image of the display panel 10 at the main viewing angle can be clearly displayed, and the light of the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the preset direction overlaps with the light of the adjacent sub-pixel in the preset direction. For example, when the first anti-peeping sub-pixel 1241 is arranged adjacent to the first color sub-pixel 121, the light emitted by the first anti-peeping sub-pixel along a preset direction coincides with the light emitted by the first color sub-pixel 121 in the preset direction, that is, the light of the first color sub-pixel 121 and the first anti-peeping sub-pixel 1241 in the preset direction are mixed, so that the visibility of the display panel 10 in the preset direction is reduced, that is, the visibility of the area outside the main viewing angle of the display panel 10 is reduced, thereby playing an anti-peeping role, where the main viewing angle is the viewing direction of the user looking at the display panel.

Please refer to FIG5 , which is a schematic structural diagram of a cross section of the display panel 10 along line A-A as shown in FIG1 provided in a fourth embodiment of the present application.

As shown in FIG5 , the display panel 10 includes a base substrate 100, a driving circuit layer 110, a plurality of pixel units 120, and an encapsulation layer 130, which are sequentially stacked along a first direction F1. The display panel 10 also includes an anti-peeping portion 140, which is stacked on a side of the encapsulation layer 130 away from the base substrate 100 and partially embedded in the encapsulation layer 130.

Among them, each pixel unit 120 includes a first color sub-pixel 121, a second color sub-pixel 122 and a third color sub-pixel 123, and the first color sub-pixel 121, the second color sub-pixel 122 and the third color sub-pixel 123 are arranged in sequence along the second direction F2. The first color sub-pixel 121, the second color sub-pixel 122 and the third color sub-pixel 123 are used to emit light of different colors to perform image display. The pixel unit 120 also includes a first electrode 125, a second electrode 126 and a pixel definition layer 127. The first electrode 125 and the second electrode 126 are relatively arranged on both sides of the sub-pixel along the first direction F1. The first electrode 125 and the second electrode 126 cooperate with each other to provide a driving voltage for the sub-pixel. The pixel definition layer 127 is arranged between any two adjacent sub-pixels to isolate adjacent sub-pixels.

Specifically, the pixel unit 120 further includes at least one anti-peeping sub-pixel 124, which is disposed between any two adjacent sub-pixels, for example, between the first color sub-pixel 121 and the second color sub-pixel 122 or between the second color sub-pixel 122 and the third color sub-pixel 123. The anti-peeping sub-pixel 124 is used to emit light at a preset time, which overlaps with the light of the adjacent sub-pixel in a preset direction, so that the visibility of the adjacent sub-pixel in the preset direction is reduced, thereby achieving an anti-peeping effect. The preset direction is the direction of the angle between the first direction F1 and the second direction F2.

The anti-peeping sub-pixel 124 includes a first anti-peeping sub-pixel 1241 and a second anti-peeping sub-pixel 1242, and a pixel definition layer 127 is provided between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242. Meanwhile, a pixel definition layer 127 is provided between the first anti-peeping sub-pixel 1241 and the first color sub-pixel 121, and between the second anti-peeping sub-pixel 1242 and the second color sub-pixel 122.

The difference between this embodiment and the first embodiment is that the structure of the peep-proof part 140 is different. The peep-proof part 140 is stacked on the side of the encapsulation layer 130 away from the base substrate 100 and partially embedded in the encapsulation layer 130. The peep-proof part 140 specifically includes a reflection unit 141 and a light shielding layer 142.

The light shielding layer 142 is disposed on the side of the encapsulation layer 130 away from the base substrate 100, and the light shielding layer 142 is disposed opposite to the anti-peeping sub-pixel 124 along the first direction F1. The projection of the light shielding layer 142 along the first direction F1 completely covers the light-emitting surface of the anti-peeping sub-pixel 124. In other words, the length of the projection of the light shielding layer 142 along the first direction F1 on the base substrate 100 in the second direction F2 is greater than or equal to the distance between the pixel definition layers 127 on the two adjacent sides of the anti-peeping sub-pixel 124. The light shielding layer 142 is used to shield part of the light emitted by the anti-peeping sub-pixel 124.

The reflective unit 141 is disposed along the first direction F1 on the side of the light shielding layer 142 adjacent to the base substrate 100 and embedded in the encapsulation layer 130. The reflective unit 141 is used to reflect part of the light emitted by the anti-peeping sub-pixel 124. In addition, the thermal conductivity of the reflective unit 141 is less than a preset threshold value, and is used to absorb the heat of the light shielding layer 142 and the adjacent layer structure, thereby achieving a cooling effect.

In this embodiment, the material of the shading layer 142 can be chromium, chromium oxide, black resin and other materials, and the material of the reflecting unit 141 can be porous silicon material. The porous silicon material has good reflective properties, and the porous structure makes the porous silicon material have a lower thermal conductivity, that is, the porous silicon material has good cooling properties. Of course, the shading layer 142 and the reflecting unit 141 can also be set to other materials according to specific needs, and this application is not limited.

When ambient light irradiates the light shielding layer 142, the temperature of the light shielding layer 142 will gradually increase, and the light shielding layer 142 will transfer heat to the reflective unit 141. Since the reflective unit 141 has a low thermal conductivity, it can absorb the heat of the light shielding layer 142 and inhibit the transfer of heat, thereby preventing the heat from being transferred to the adjacent film layer structure, thereby achieving a cooling effect, further avoiding the display panel 10 from increasing power consumption and poor display effects due to temperature increases. Similarly, when the anti-peep sub-pixel 124 emits light to the reflective unit 141, it will transfer heat to the reflective unit 141. The reflective unit 141 can also absorb heat and inhibit the continued transfer of heat, thereby achieving a cooling effect.

Specifically, the reflecting unit 141 includes a first reflecting layer 1411 and a second reflecting layer 1412. The first reflecting layer 1411 extends along the second direction F2 and is arranged on the side of the light-shielding layer 142 adjacent to the base substrate 100. The first reflecting layer 1411 is arranged opposite to the anti-peeping sub-pixel 124 along the first direction F1. The length of the first reflecting layer 1411 along the second direction F2 is less than or equal to the length of the light-shielding layer 142 along the second direction F2.

The first reflective layer 1411 includes a first sub-reflective element 1411a and a second sub-reflective element 1411b. The first sub-reflective element 1411a and the second sub-reflective element 1411b are symmetrically arranged with the first direction F1 as the symmetry axis. The first sub-reflective element 1411a is arranged opposite to the first anti-peeping sub-pixel 1241 along the first direction F1, and the second sub-reflective element 1411b is arranged opposite to the second anti-peeping sub-pixel 1242 along the first direction F1. The first sub-reflector 1411a and the second sub-reflector 1411b have a right-angled trapezoidal cross section, the first bottom side of the first sub-reflector 1411a is adjacent to and parallel to the light shielding layer 142, the second bottom side is adjacent to the first anti-peeping sub-pixel 1241, the angle α between the first bottom side and the hypotenuse is less than or equal to 45 degrees, the first bottom side of the second sub-reflector 1411b is adjacent to and parallel to the light shielding layer 142, the second bottom side is adjacent to the first anti-peeping sub-pixel 1241, the length of the first bottom side is greater than the length of the second bottom side, the angle α between the first bottom side and the hypotenuse is less than or equal to 45 degrees, and by setting the cross-sectional shape of the first reflective layer 1411 to two right-angled trapezoids, The first reflective layer 1411 can reflect the light received from the anti-peeping sub-pixel 124 more concentratedly to the second reflective layer 1412. Specifically, the hypotenuse of the first sub-reflector 1411a and the second sub-reflector 1411b can reflect the light received from the anti-peeping sub-pixel 124 more concentratedly to the reflector A on the second reflective layer 1412 adjacent to the side of the light-shielding layer 142. The second bottom edges of the first sub-reflector 1411a and the second sub-reflector 1411b parallel to the light-shielding layer 142 and adjacent to the anti-peeping sub-pixel 124 can reflect the light received from the anti-peeping sub-pixel 124 more concentratedly to the reflector A on the second reflective layer 1412 adjacent to the side of the anti-peeping sub-pixel 124.

The second reflective layer 1412 extends along the first direction F1 and is disposed on the side of the first reflective layer 1411 adjacent to the base substrate 100. The second reflective layer 1412 is disposed along the first direction F1 directly opposite to the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242. The second reflective layer 1412 includes a plurality of reflectors A disposed sequentially along the first direction F1. The cross-section of the reflectors A is rhombus-shaped, or may be other quadrilaterals such as a trapezoid or other polygons. The cross-sectional areas of the plurality of reflectors A gradually increase along the first direction F1. By arranging a plurality of reflectors A of different sizes on the second reflective layer 1412, the second reflective layer 1412 can reflect light received at different angles to a preset direction, thereby enhancing the light intensity of the anti-peeping sub-pixel 124 in the preset direction.

In an exemplary embodiment, the number of reflectors A in the second reflective layer 1412 can be set to 5, and the cross-sectional areas of the 5 reflectors A along the first direction F1 gradually increase. The reflector A with the largest cross-sectional area, that is, the fifth reflector A, receives light in a range greater than that of the first reflector A to the fourth reflector A. At the same time, the fifth reflector A reflects light at a larger angle, that is, the fifth reflector A reflects light in a wider range. Therefore, the range of light received by the second reflective layer 1412 and the angle range of light reflected by the second reflective layer 1412 can be adjusted by adjusting the number of reflectors A in the second reflective layer 1412. Of course, the number of reflectors A can also be set according to specific needs, and the present application does not impose any restrictions on this.

In an exemplary embodiment, the length of the second reflective layer 1412 along the first direction F1 is less than or equal to the length of the encapsulation layer 130 along the first direction F1, that is, the second reflective layer 1412 can be connected to the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1, or can be arranged at a preset distance from the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1. Of course, the length of the second reflective layer 1412 along the first direction F1 can also be set according to specific needs, and the present application does not impose any restrictions on this.

By setting the first reflective layer 1411 and the second reflective layer 1412, the light emitted by the anti-peeping sub-pixel 124 outside the preset direction is transmitted to the preset direction through the first reflective layer 1411 and/or the second reflective layer 1412, thereby enhancing the intensity of the light of the anti-peeping sub-pixel 124 in the preset direction, and further enhancing the degree of light mixing between the anti-peeping sub-pixel 124 and the adjacent sub-pixels in the preset direction, thereby enhancing the anti-peeping effect.

The display panel 10 includes a first display mode and a second display mode when performing image display. In the first display mode, the first color sub-pixel 121 , the second color sub-pixel 122 , and the third color sub-pixel 123 emit light to perform image display.

In the second display mode, the first color sub-pixel 121, the second color sub-pixel 122, the third color sub-pixel and the anti-peeping sub-pixel 124 all emit light, and the light shielding layer 142 blocks the light of the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1. The image of the display panel 10 at the main viewing angle can be clearly displayed, and the light of the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the preset direction overlaps with the light of the adjacent sub-pixel in the preset direction. For example, when the first anti-peeping sub-pixel 1241 is arranged adjacent to the first color sub-pixel 121, the light emitted by the first anti-peeping sub-pixel along a preset direction coincides with the light emitted by the first color sub-pixel 121 in the preset direction, that is, the light of the first color sub-pixel 121 and the first anti-peeping sub-pixel 1241 in the preset direction are mixed, so that the visibility of the display panel 10 in the preset direction is reduced, that is, the visibility of the area outside the main viewing angle of the display panel 10 is reduced, thereby playing an anti-peeping role, where the main viewing angle is the viewing direction of the user looking at the display panel.

Please refer to FIG6 , which is a schematic structural diagram of a cross section of the display panel 10 along line A-A as shown in FIG1 provided in the fifth embodiment of the present application.

As shown in FIG6 , the display panel 10 includes a base substrate 100, a driving circuit layer 110, a plurality of pixel units 120, and an encapsulation layer 130, which are sequentially stacked along a first direction F1. The display panel 10 also includes an anti-peeping portion 140, which is stacked on a side of the encapsulation layer 130 away from the base substrate 100 and partially embedded in the encapsulation layer 130.

Among them, each pixel unit 120 includes a first color sub-pixel 121, a second color sub-pixel 122 and a third color sub-pixel 123, and the first color sub-pixel 121, the second color sub-pixel 122 and the third color sub-pixel 123 are arranged in sequence along the second direction F2. The first color sub-pixel 121, the second color sub-pixel 122 and the third color sub-pixel 123 are used to emit light of different colors to perform image display. The pixel unit 120 also includes a first electrode 125, a second electrode 126 and a pixel definition layer 127. The first electrode 125 and the second electrode 126 are relatively arranged on both sides of the sub-pixel along the first direction F1. The first electrode 125 and the second electrode 126 cooperate with each other to provide a driving voltage for the sub-pixel. The pixel definition layer 127 is arranged between any two adjacent sub-pixels to isolate adjacent sub-pixels.

Specifically, the pixel unit 120 further includes at least one anti-peeping sub-pixel 124, which is disposed between any two adjacent sub-pixels, for example, between the first color sub-pixel 121 and the second color sub-pixel 122 or between the second color sub-pixel 122 and the third color sub-pixel 123. The anti-peeping sub-pixel 124 is used to emit light at a preset time, which overlaps with the light of the adjacent sub-pixel in a preset direction, so that the visibility of the adjacent sub-pixel in the preset direction is reduced, thereby achieving an anti-peeping effect. The preset direction is the direction of the angle between the first direction F1 and the second direction F2.

The anti-peeping sub-pixel 124 includes a first anti-peeping sub-pixel 1241 and a second anti-peeping sub-pixel 1242, and a pixel definition layer 127 is provided between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242. Meanwhile, a pixel definition layer 127 is provided between the first anti-peeping sub-pixel 1241 and the first color sub-pixel 121, and between the second anti-peeping sub-pixel 1242 and the second color sub-pixel 122.

The difference between this embodiment and the first embodiment is that the structure of the peep-proof part 140 is different. The peep-proof part 140 is stacked on the side of the encapsulation layer 130 away from the base substrate 100 and partially embedded in the encapsulation layer 130. The peep-proof part 140 specifically includes a reflection unit 141 and a light shielding layer 142.

The light shielding layer 142 is disposed on the side of the encapsulation layer 130 away from the base substrate 100, and the light shielding layer 142 is disposed opposite to the anti-peeping sub-pixel 124 along the first direction F1. The projection of the light shielding layer 142 along the first direction F1 completely covers the light-emitting surface of the anti-peeping sub-pixel 124. In other words, the length of the projection of the light shielding layer 142 along the first direction F1 on the base substrate 100 in the second direction F2 is greater than or equal to the distance between the pixel definition layers 127 on the two adjacent sides of the anti-peeping sub-pixel 124. The light shielding layer 142 is used to shield part of the light emitted by the anti-peeping sub-pixel 124.

The reflective unit 141 is disposed along the first direction F1 on the side of the light shielding layer 142 adjacent to the base substrate 100 and embedded in the encapsulation layer 130. The reflective unit 141 is used to reflect part of the light emitted by the anti-peeping sub-pixel 124. The thermal conductivity of the reflective unit 141 is less than a preset threshold value, and is used to absorb the heat of the light shielding layer 142 and the adjacent layer structure, thereby achieving a cooling effect.

In this embodiment, the material of the shading layer 142 can be chromium, chromium oxide, black resin and other materials, and the material of the reflecting unit 141 can be porous silicon material. The porous silicon material has good reflective properties, and the porous structure makes the porous silicon material have a lower thermal conductivity, that is, the porous silicon material has good cooling properties. Of course, the shading layer 142 and the reflecting unit 141 can also be set to other materials according to specific needs, and this application is not limited.

When ambient light irradiates the light shielding layer 142, the temperature of the light shielding layer 142 will gradually increase, and the light shielding layer 142 will transfer heat to the reflective unit 141. Since the reflective unit 141 has a low thermal conductivity, it can absorb the heat of the light shielding layer 142 and inhibit the transfer of heat, thereby preventing the heat from being transferred to the adjacent film layer structure, thereby achieving a cooling effect, further avoiding the display panel 10 from increasing power consumption and poor display effects due to temperature increases. Similarly, when the anti-peep sub-pixel 124 emits light to the reflective unit 141, it will transfer heat to the reflective unit 141. The reflective unit 141 can also absorb heat and inhibit the continued transfer of heat, thereby achieving a cooling effect.

Specifically, the reflecting unit 141 includes a first reflecting layer 1411 and a second reflecting layer 1412. The first reflecting layer 1411 extends along the second direction F2 and is arranged on the side of the light shielding layer 142 adjacent to the base substrate 100. A dividing line DL along the first direction F1 is arranged between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242. The cross-sectional shape of the first reflecting layer 1411 is a rectangle, or a right triangle or a right trapezoid, and is arranged on the side of the dividing line DL adjacent to the first anti-peeping sub-pixel 1241 or adjacent to the second anti-peeping sub-pixel 1242. The first reflecting layer 1411 is arranged opposite to the first anti-peeping sub-pixel 1241 or the second anti-peeping sub-pixel 1242 along the first direction F1.

The second reflective layer 1412 extends along the first direction F1 and is disposed on the side of the first reflective layer 1411 adjacent to the base substrate 100. The second reflective layer 1412 is disposed along the first direction F1 directly opposite to the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242. The second reflective layer 1412 includes a plurality of reflectors A disposed in sequence along the first direction F1, and the cross-sectional areas of the plurality of reflectors A gradually increase along the first direction F1. The cross-sectional shape of the reflector A is triangular, and may also be other quadrilaterals such as a trapezoid or other polygons. The second reflective layer 1412 is disposed along the first direction F1 on the side of the dividing line DL adjacent to the first anti-peeping sub-pixel 1241 or on the side of the dividing line DL adjacent to the second anti-peeping sub-pixel 1242, wherein the first reflective layer 1411 and the second reflective layer 1412 are disposed on the same side of the dividing line DL. For example, when the first reflective layer 1411 is disposed on the side of the dividing line DL adjacent to the first anti-peeping sub-pixel 1241, that is, the first reflective layer 1411 is disposed opposite to the first anti-peeping sub-pixel 1241, the second reflective layer 1412 is also disposed on the dividing line DL adjacent to the first anti-peeping sub-pixel 1241, and the first reflective layer 1411 and the second reflective layer 1412 cooperate to reflect the light emitted by the first anti-peeping sub-pixel 1241; when the first reflective layer 1411 is disposed on the side of the dividing line DL adjacent to the second anti-peeping sub-pixel 1242, that is, the first reflective layer 1411 is disposed opposite to the second anti-peeping sub-pixel 1242, the second reflective layer 1412 is also disposed on the dividing line DL adjacent to the second anti-peeping sub-pixel 1242, and the first reflective layer 1411 and the second reflective layer 1412 cooperate to reflect the light emitted by the second anti-peeping sub-pixel 1242.

By configuring the second reflective layer 1412 to include a plurality of reflectors A of different sizes, the second reflective layer 1412 can reflect light received at different angles to a preset direction, thereby enhancing the light intensity of the anti-peeping sub-pixel 124 in the preset direction.

In an exemplary embodiment, the number of reflectors A in the second reflective layer 1412 can be set to 5, and the cross-sectional areas of the 5 reflectors A along the first direction F1 gradually increase. The reflector A with the largest cross-sectional area, that is, the fifth reflector A, receives light in a range greater than that of the first reflector A to the fourth reflector A. At the same time, the fifth reflector A reflects light at a larger angle, that is, the fifth reflector A reflects light in a wider range. Therefore, the range of light received by the second reflective layer 1412 and the angle range of light reflected by the second reflective layer 1412 can be adjusted by adjusting the number of reflectors A in the second reflective layer 1412. Of course, the number of reflectors A can also be set according to specific needs, and the present application does not impose any restrictions on this.

In an exemplary embodiment, the length of the second reflective layer 1412 along the first direction F1 is less than or equal to the length of the encapsulation layer 130 along the first direction F1, that is, the second reflective layer 1412 can be connected to the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1, or can be arranged at a preset distance from the pixel definition layer 127 between the first anti-peeping sub-pixel 1241 and the second anti-peeping sub-pixel 1242 along the first direction F1. Of course, the length of the second reflective layer 1412 along the first direction F1 can also be set according to specific needs, and the present application does not impose any restrictions on this.

By setting the first reflective layer 1411 and the second reflective layer 1412, the light emitted by the first anti-peeping sub-pixel 1241 or the second anti-peeping sub-pixel 1242 outside the preset direction is transmitted to the preset direction through the first reflective layer 1411 and/or the second reflective layer 1412, thereby enhancing the intensity of the light of the first anti-peeping sub-pixel 1241 or the second anti-peeping sub-pixel 1242 in the preset direction, and then enhancing the degree of light mixing between the first anti-peeping sub-pixel 1241 or the second anti-peeping sub-pixel 1242 and the adjacent sub-pixels in the preset direction, thereby enhancing the anti-peeping effect.

The display panel 10 includes a first display mode and a second display mode when performing image display. In the first display mode, the first color sub-pixel 121 , the second color sub-pixel 122 , and the third color sub-pixel 123 emit light to perform image display.

In the second display mode, the first color sub-pixel 121, the second color sub-pixel 122, the third color sub-pixel, the first anti-peeping sub-pixel 1241 or the second anti-peeping sub-pixel 1242 all emit light, and the light shielding layer 142 blocks the light of the first anti-peeping sub-pixel 1241 or the second anti-peeping sub-pixel 1242 along the first direction F1. The image of the display panel 10 under the main viewing angle can be clearly displayed, and the light of the first anti-peeping sub-pixel 1241 or the second anti-peeping sub-pixel 1242 along the preset direction overlaps with the light of the adjacent sub-pixel in the preset direction. For example, when the first anti-peeping sub-pixel 1241 is arranged adjacent to the first color sub-pixel 121, the light emitted by the first anti-peeping sub-pixel along a preset direction coincides with the light emitted by the first color sub-pixel 121 in the preset direction, that is, the light of the first color sub-pixel 121 and the first anti-peeping sub-pixel 1241 in the preset direction are mixed, so that the visibility of the display panel 10 in the preset direction is reduced, that is, the visibility of the area outside the main viewing angle of the display panel 10 is reduced, thereby playing an anti-peeping role, where the main viewing angle is the viewing direction of the user looking at the display panel.

It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims (9)

1. A display panel, comprising a plurality of sub-pixels arranged on a base substrate, wherein the plurality of sub-pixels are used to emit light of different colors to display an image, wherein the display panel further comprises an encapsulation layer and an anti-peeping portion, wherein the encapsulation layer is arranged on a side of the sub-pixel away from the base substrate, and is used to seal the sub-pixel, and the anti-peeping portion is arranged on a side of the encapsulation layer away from the sub-pixel and is partially embedded in the encapsulation layer, wherein the plurality of sub-pixels comprise anti-peeping sub-pixels, the anti-peeping portion is arranged opposite to the anti-peeping sub-pixels along a first direction, and the anti-peeping portion is used to adjust the light emitted by the anti-peeping sub-pixels, so as to control the light emitted by the anti-peeping sub-pixels to overlap with the light emitted by adjacent sub-pixels in a preset direction; wherein, between any two adjacent sub-pixels, there is also a portion perpendicular to the first direction. A pixel definition layer is set in a second direction of a direction, the anti-peeping part includes a light-shielding layer and a reflecting unit, the light-shielding layer is stacked and arranged on the side of the packaging layer away from the base substrate and is used to block the light emitted by the anti-peeping sub-pixel, the reflecting unit is embedded in the packaging layer along the first direction, the reflecting unit includes a first reflecting layer and a second reflecting layer, the first reflecting layer extends along the second direction and is arranged on the side of the light-shielding layer adjacent to the base substrate, the second reflecting layer extends along the first direction and is arranged on the side of the first reflecting layer adjacent to the base substrate, the second reflecting layer is arranged along the first direction opposite to the pixel definition layer between the first anti-peeping sub-pixel and the second anti-peeping sub-pixel included in the anti-peeping sub-pixel, and is used to reflect the light emitted by the anti-peeping sub-pixel. 2. The display panel according to claim 1 is characterized in that the multiple sub-pixels further include a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, wherein one first color sub-pixel, one second color sub-pixel and one third color sub-pixel constitute a pixel unit, each of the pixel units is provided with at least one anti-peeping sub-pixel, and the anti-peeping sub-pixel in each of the pixel units is provided between any two adjacent sub-pixels. 3. The display panel according to claim 2, characterized in that the display panel comprises a first display mode and a second display mode, In the first display mode, the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel emit light to display an image, and the anti-peeping sub-pixel stops emitting light; In the second display mode, the first color sub-pixel, the second color sub-pixel, the third color sub-pixel and the anti-peeping sub-pixel all emit light, and the light emitted by the anti-peeping sub-pixel is transmitted to the preset direction through the anti-peeping portion to control the light emitted by the anti-peeping sub-pixel to overlap with the light emitted by an adjacent sub-pixel in the preset direction. 4. The display panel according to claim 3, characterized in that, in each of the pixel units, the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are arranged adjacent to each other in sequence, the anti-peeping sub-pixel is arranged between the first color sub-pixel and the second color sub-pixel, the first anti-peeping sub-pixel is arranged adjacent to the first color sub-pixel, and the first anti-peeping sub-pixel and the first color sub-pixel emit light of the same color, the second anti-peeping sub-pixel is arranged adjacent to the second color sub-pixel, and the second anti-peeping sub-pixel and the second color sub-pixel emit light of the same color; Alternatively, the anti-peeping sub-pixel is arranged between the second color sub-pixel and the third color sub-pixel, the first anti-peeping sub-pixel is arranged adjacent to the second color sub-pixel, the first anti-peeping sub-pixel and the second color sub-pixel emit light of the same color, the second anti-peeping sub-pixel is arranged adjacent to the third color sub-pixel, and the second anti-peeping sub-pixel and the third color sub-pixel emit light of the same color. 5. The display panel according to claim 4 is characterized in that the shading layer is arranged opposite to the anti-peeping sub-pixel along a first direction, and the projection of the shading layer along the first direction completely covers the light-emitting surface of the anti-peeping sub-pixel, and in the pixel unit, the pixel definition layer is used to isolate the adjacent sub-pixels, and the reflection unit is arranged opposite to the pixel definition layer between the first anti-peeping sub-pixel and the second anti-peeping sub-pixel along the first direction, and is used to reflect the light emitted by the anti-peeping sub-pixel. 6. The display panel according to claim 5 is characterized in that the first reflective layer includes a first sub-reflector and a second sub-reflector, the first sub-reflector and the second sub-reflector are symmetrically arranged with the first direction as the symmetry axis, the first sub-reflector is arranged opposite to the first anti-peep sub-pixel along the first direction, and the second sub-reflector is arranged opposite to the second anti-peep sub-pixel along the first direction, the cross-section of the first sub-reflector and the second sub-reflector is a right triangle, a right-angled side of the first sub-reflector is adjacent to and parallel to the light-shielding layer, and a right-angled side of the second sub-reflector is adjacent to and parallel to the light-shielding layer. 7. The display panel according to claim 5 is characterized in that the first reflective layer includes a first sub-reflector and a second sub-reflector, the first sub-reflector and the second sub-reflector are symmetrically arranged with the first direction as the symmetry axis, the first sub-reflector is arranged opposite to the first anti-peeping sub-pixel along the first direction, and the second sub-reflector is arranged opposite to the second anti-peeping sub-pixel along the first direction, the cross-section of the first sub-reflector and the second sub-reflector is a right-angled trapezoid, the first bottom edge of the first sub-reflector is adjacent to and parallel to the light-shielding layer, the second bottom edge of the first sub-reflector is adjacent to one side of the anti-peeping sub-pixel, the first bottom edge of the second sub-reflector is adjacent to and parallel to the light-shielding layer, the second bottom edge of the second sub-reflector is adjacent to one side of the anti-peeping sub-pixel, and the length of the first bottom edge is greater than the length of the second bottom edge. 8. The display panel according to claim 7 is characterized in that the second reflective layer comprises a plurality of reflectors arranged in sequence along the first direction, and the cross-sectional areas of the plurality of reflectors gradually increase along the first direction to control the second reflective layer to receive light and gradually increase the angle range of light reflected by the second reflective layer. 9. A display device, characterized in that the display device comprises a housing and a display panel according to any one of claims 1 to 8, wherein the housing is used to carry the display panel.