CN112558397A - Display screen - Google Patents
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- CN112558397A CN112558397A CN201910852812.1A CN201910852812A CN112558397A CN 112558397 A CN112558397 A CN 112558397A CN 201910852812 A CN201910852812 A CN 201910852812A CN 112558397 A CN112558397 A CN 112558397A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/567—Projection screens for colour projection
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
The application discloses display screen belongs to and shows technical field. The display screen includes: a light-resistant layer (1) and three reflecting layers (2); a first reflective layer (2) of the three reflective layers (2) is located between the light-resistant layer (1) and a second reflective layer (2) of the three reflective layers (2), the second reflective layer (2) is located between the first reflective layer (2) and a third reflective layer (2) of the three reflective layers (2); the light-resistant layer (1) is used for scattering light incident to the light-resistant layer (1); one (2) of the three reflective layers (2) is used for reflecting red light, the other reflective layer (2) is used for reflecting green light, and the other reflective layer (2) is used for reflecting blue light. The red light, the green light and the blue light respectively reflected by the three reflecting layers in the application can enter human eyes after being emitted from the display screen, so that the contrast of a picture displayed in the display screen can be improved, and the color display effect of the display screen is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a display screen.
Background
With the continuous development of display technology, ultra-short-focus laser projection display is more and more popular. In the field of ultra-short-focus laser projection display, in order to achieve better brightness and display effect, a projector is generally used in combination with a display screen.
At present, a display screen sequentially comprises an anti-light layer, a substrate layer, a diffusion layer, a fresnel lens layer and an aluminum reflection layer. Light emitted by the projector can penetrate through the light-resisting layer, the substrate layer, the diffusion layer and the Fresnel lens layer in the display screen, enter the aluminum reflection layer and then be reflected by the aluminum reflection layer. For the external ambient light, a part of the ambient light is scattered to other directions by the light-resistant layer, and the rest of the ambient light enters the substrate layer, enters the aluminum reflective layer through the substrate layer, the diffusion layer and the Fresnel lens layer and is then reflected by the aluminum reflective layer. The reflected light can enter human eyes after exiting the display screen.
Since the aluminum reflective layer reflects not only the light emitted by the projector but also part of the ambient light, the light that is eventually emitted from the display screen includes not only the light emitted by the camera but also part of the ambient light. This results in a low contrast of the picture displayed in the display screen.
Disclosure of Invention
The application provides a display screen, which can solve the problem that the contrast of a picture displayed in the display screen is low in the related art. The technical scheme is as follows:
in one aspect, a display screen is provided, the display screen including: an anti-light layer and three reflective layers;
a first one of the three reflective layers is located between the light-resistant layer and a second one of the three reflective layers, the second one of the three reflective layers being located between the first one of the reflective layers and a third one of the three reflective layers; the light-resistant layer is used for scattering light incident to the light-resistant layer; one of the three reflective layers is for reflecting red light, another reflective layer is for reflecting green light, and yet another reflective layer is for reflecting blue light.
Optionally, each of the three reflective layers comprises a microstructure layer, a reflective film, and a substrate; the reflective film is located between the microstructure layer and the substrate, a plurality of sawteeth are arranged on the microstructure layer, the reflective film is coated on the first surface of each sawtooth in the plurality of sawteeth, and an included angle between the first surface and the bottom surface of the microstructure layer is an acute angle.
Optionally, the microstructure layer is a fresnel lens.
Optionally, the display screen further comprises an absorbing layer; the three reflecting layers are positioned between the light-resisting layer and the absorbing layer, and the absorbing layer is used for absorbing light incident to the absorbing layer.
Optionally, the material of the reflective film is silicon dioxide, titanium or niobium pentoxide.
Optionally, the third reflective layer is further configured to absorb light that is not reflected by the third reflective layer.
Optionally, the third reflective layer comprises a substrate and a linear black grid; the substrate is positioned between the linear black grid and the second reflecting layer.
Optionally, the linear black grid comprises a first prism and a second prism; the first prism is positioned between the substrate and the second prism, and the first prism is arranged on the inclined plane of the second prism; the first prism is used for reflecting light, and the second prism is used for absorbing the light incident to the second prism.
Optionally, the substrate is made of polyethylene terephthalate, polyvinyl chloride or polycarbonate.
Optionally, the display screen further comprises a diffusion layer; the diffusion layer is located between any two adjacent reflection layers of the three reflection layers, and the diffusion layer is used for diffusing light incident to the diffusion layer.
The technical scheme provided by the application can at least bring the following beneficial effects:
the display screen includes a light-resistant layer and three reflective layers. The light incident to the display screen can be incident to the three reflecting layers through the anti-light layer, the three reflecting layers can respectively reflect red light, green light and blue light, and then the reflected red light, green light and blue light can enter human eyes after being emitted from the display screen. Because the red light, the green light and the blue light are the three primary colors of the color light, the contrast of the picture displayed in the display screen can be improved, and the color display effect of the display screen is improved.
Drawings
Fig. 1 is a schematic structural diagram of a first display screen provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a microstructure layer provided in an embodiment of the present application;
FIG. 3 is a graph illustrating reflectivity curves of a reflective film according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a second display screen provided in an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a third display screen provided in an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a fourth display screen provided in an embodiment of the present application;
fig. 7 is a schematic structural diagram of a linear black gate provided in an embodiment of the present application;
FIG. 8 is a schematic structural diagram of a fifth display screen provided in an embodiment of the present application;
FIG. 9 is a schematic structural diagram of a sixth display screen provided in an embodiment of the present application;
fig. 10 is a schematic diagram of a light propagation process in a display screen according to an embodiment of the present application.
Reference numerals:
1: light-resistant layer, 2: reflective layer, 3: microstructure layer, 4: first face of serration, 5: second face of serration, 6: bottom surface of microstructure layer, 7: reflective film, 8: substrate, 9: linear black grid, 10: first prism of linear black grid, 11: second prism of linear black grid, 12: absorption layer, 13: diffusion layer, 14: a projector.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a display screen according to an embodiment of the present application. Referring to fig. 1, the display screen may include: a light-resistant layer 1 and three reflective layers 2.
A first reflective layer 2 of the three reflective layers 2 is located between the light-resistant layer 1 and a second reflective layer 2 of the three reflective layers 2, and the second reflective layer 2 is located between the first reflective layer 2 and a third reflective layer 2 of the three reflective layers 2. The light-resistant layer 1 is used for scattering light incident to the light-resistant layer 1; one reflective layer 2 of the three reflective layers 2 is for reflecting red light, another reflective layer 2 is for reflecting green light, and still another reflective layer 2 is for reflecting blue light.
Note that light incident on the light-resistant layer 1 is scattered in the light-resistant layer 1. The material of the light-resistant layer 1 may be preset according to the requirement, for example, the material of the light-resistant layer 1 may be acrylate polymer or the like. For the external ambient light incident to the light-resistant layer 1, because the incident angle of the ambient light is not fixed, the ambient light can be scattered to all directions in the light-resistant layer 1, most of the ambient light can be scattered to other directions at the moment and can not be incident to the first reflecting layer 2, and only a small part of the ambient light can be incident to the first reflecting layer 2, so that the influence of the ambient light on the contrast of a screen display picture can be reduced, and the picture display effect is improved. For the light emitted from the projector incident to the light-resistant layer 1, since the incident angle of the light emitted from the projector is fixed, the light emitted from the projector is scattered in the light-resistant layer 1 to a certain direction, and then may be incident to the first reflective layer 2.
In addition, the three reflective layers 2 are used to reflect red light, green light, and blue light one by one. The arrangement sequence of the three reflective layers 2 may be preset according to the use requirement, for example, the arrangement sequence of the three reflective layers 2 may be: a reflective layer 2 for reflecting red light, a reflective layer 2 for reflecting green light, a reflective layer 2 for reflecting blue light; alternatively, the three reflective layers 2 may be arranged in the following order: the reflective layer 2 is used for reflecting green light, the reflective layer 2 is used for reflecting red light, and the reflective layer 2 is used for reflecting blue light, which is not limited in the embodiments of the present application.
Specifically, when a display screen is used for displaying, light emitted from the projector may be incident to the three reflective layers 2 through the light-resistant layer 1 in the display screen, and then the three reflective layers 2 may reflect red light, green light, and blue light therein, respectively. For the external environment light, the light-resistant layer 1 firstly scatters a part of the environment light to other directions, the rest environment light enters the three reflecting layers 2, and the three reflecting layers 2 can respectively reflect the red light, the green light and the blue light. The reflected red, green and blue light then exits the display screen and enters the human eye. Because the red light, the green light and the blue light are the three primary colors of the color light, the contrast of the picture displayed in the display screen can be improved, and the color display effect of the display screen is improved.
The structure of the three reflective layers 2 will be explained below. The structure of the three reflective layers 2 may include several possible reflective structures as follows:
a first possible reflective structure: referring to fig. 2 to 5, each of the three reflective layers 2 may include a microstructure layer 3, a reflective film 7, and a substrate 8. The reflective film 7 is located between the microstructure layer 3 and the substrate 8, a plurality of sawteeth are arranged on the microstructure layer 3, the reflective film 7 is coated on the first surface 4 of each sawtooth in the plurality of sawteeth, and an included angle between the first surface 4 and the bottom surface 6 of the microstructure layer 3 is an acute angle.
The microstructured layer 3 is a layer for providing a light-reflecting surface and a light-transmitting surface. The type of the micro-structure layer 3 may be preset according to the use requirement, for example, the micro-structure layer 3 may be a fresnel lens.
Referring to fig. 2, the microstructure layer 3 is provided with a plurality of serrations each having a first surface 4 and a second surface 5. The included angle between the first surface 4 of each sawtooth and the bottom surface 6 of the microstructure layer 3 can be an acute angle, the first surface 4 is coated with a reflective film 7, and the first surface 4 is a reflective surface. The second surface 5 of each serration may be perpendicular to the bottom surface 6 of the microstructure layer 3, the second surface 5 being a light-transmitting surface.
When light is incident on the first surface 4 of each of the plurality of saw teeth, the light may be reflected by the first surface 4 since the first surface 4 is coated with the reflective film 7. When light is incident on the second surface 5 of each of the plurality of teeth, the light enters the interior of the microstructure layer 3 through the second surface 5, thereby achieving light absorption. Since the light incident on the first surface 4 is generally light of a projector incident from the front of the display screen and the light incident on the second surface 5 is generally ambient light, the light is reflected by the first surface 4 and absorbed by the second surface 5, so that the influence of the ambient light on the contrast of the screen display picture can be reduced and the picture display effect can be improved.
In addition, the reflective film 7 serves to reflect red, green, or blue light. That is, the reflective film 7 in one reflective layer 2 of the three reflective layers 2 may be used to reflect red light, the reflective film 7 in another reflective layer 2 may be used to reflect green light, and the reflective film 7 in still another reflective layer 2 may be used to reflect blue light. In general, the wavelength range of blue light can be 430-460nm (nanometer), and the spectral width can be less than 10 nm; the wavelength range of the green light can be 500-540nm, and the spectral width can be less than 10 nm; the wavelength range of the red light can be 610 nm and 650nm, and the spectral width can be less than 10 nm. In this case, in a possible implementation manner, the reflectivity curve of the reflective film 7 can be as shown in fig. 3, i.e. the reflective film 7 has higher reflectivity for blue light with a wavelength of 440-450nm, green light with a wavelength of 510-520nm, and red light with a wavelength of 630-640nm, the reflectivity is greater than 80%, and the reflectivity for light with other wavelengths is lower, the reflectivity is less than 1%.
The material of the reflective film 7 may be set in advance according to the use requirement, and for example, the material of the reflective film 7 may be silicon dioxide, titanium, niobium pentoxide, or the like. The reflective film 7 may be coated on the first surface 4 of each of the plurality of saw teeth by photolithography, electrodeposition, printing, and the like, which is not limited in the embodiment of the present application.
Finally, the substrate 8 is used to support the microstructure layer 3. The material of the substrate 8 may be preset according to the use requirement, for example, the material of the substrate 8 may be Polyethylene terephthalate (PET), Polyvinyl chloride (PVC), polycarbonate, or the like. In practical application, the substrate 8 may also be provided with a plurality of saw teeth, and the plurality of saw teeth on the substrate 8 are engaged with the plurality of saw teeth on the microstructure layer 3 to realize a supporting function for the microstructure layer 3.
It should be noted that the order of the microstructure layer 3, the reflective film 7 and the substrate 8 may be preset according to the use requirement, for example, the order of the microstructure layer 3, the reflective film 7 and the substrate 8 may be: a microstructure layer 3, a reflective film 7, and a substrate 8; alternatively, the microstructure layer 3, the reflective film 7 and the substrate 8 may be arranged in the following order: substrate 8, reflective film 7, micro-structure layer 3.
When the arrangement sequence of the microstructure layer 3, the reflective film 7 and the substrate 8 is as follows: when the microstructure layer 3, the reflective film 7 and the substrate 8 are used, light firstly penetrates through the microstructure layer 3 and enters the reflective film 7, at the moment, a part of light (blue light, red light or green light) is reflected by the reflective film 7, and the rest of light penetrates through the reflective film 7 and enters the substrate 8 and enters the next layer through the substrate 8. When the arrangement sequence of the microstructure layer 3, the reflective film 7 and the substrate 8 is as follows: when the substrate 8, the reflective film 7 and the microstructure layer 3 are used, light firstly penetrates through the substrate 8 and enters the reflective film 7, at this time, a part of light (blue light, red light or green light) is reflected by the reflective film 7, and the rest of light penetrates through the reflective film 7 and enters the microstructure layer 3 and enters the next layer through the microstructure layer 3.
Several possible orders of arrangement of the microstructure layer 3, the reflective film 7 and the substrate 8 are explained below.
A first possible permutation order: referring to fig. 4, the microstructure layer 3, the reflective film 7 and the substrate 8 in each of the three reflective layers 2 are arranged in the following order: microstructure layer 3, reflective film 7, substrate 8.
In this case, the microstructure layer 3 in the first reflective layer 2 is adjacent to the anti-optical layer 1, the substrate 8 in the first reflective layer 2 is adjacent to the microstructure layer 3 in the second reflective layer 2, the substrate 8 in the second reflective layer 2 is adjacent to the microstructure layer 3 in the third reflective layer 2, and the substrate 8 in the third reflective layer 2 is positioned last.
The second possible permutation order: referring to fig. 5, the microstructure layer 3, the reflective film 7 and the substrate 8 in each of the three reflective layers 2 are arranged in the following order: substrate 8, reflective film 7, micro-structure layer 3.
In this case, the substrate 8 in the first reflective layer 2 is adjacent to the light-resistant layer 1, the microstructure layer 3 in the first reflective layer 2 is adjacent to the substrate 8 in the second reflective layer 2, the microstructure layer 3 in the second reflective layer 2 is adjacent to the substrate 8 in the third reflective layer 2, and the microstructure layer 3 in the third reflective layer 2 is positioned last.
Of course, there may be other possible orders of arrangement than the two possible orders of arrangement described above. For example, the microstructure layer 3, the reflective film 7 and the substrate 8 in the first reflective layer 2 are arranged in the following order: a microstructure layer 3, a reflective film 7, and a substrate 8; the microstructure layer 3, the reflective film 7 and the substrate 8 in each reflective layer 2 of the second reflective layer 2 are arranged in the following order: a substrate 8, a reflective film 7, a microstructure layer 3; the microstructure layer 3, the reflective film 7 and the substrate 8 in the third reflective layer 2 are arranged in sequence as follows: microstructure layer 3, reflective film 7, substrate 8. At this time, the microstructure layer 3 of the first reflective layer 1 is adjacent to the anti-optical layer 1, the substrate 8 of the first reflective layer 2 is adjacent to the substrate 8 of the second reflective layer 2, the microstructure layer 3 of the second reflective layer 2 is adjacent to the microstructure layer 3 of the third reflective layer 2, and the substrate 8 of the third reflective layer 2 is located at the end.
A second possible reflective structure: referring to fig. 6, each of the first reflective layer 2 and the second reflective layer 2 includes a microstructure layer 3, a reflective film 7 and a substrate 8, the reflective film 7 is located between the microstructure layer 3 and the substrate 8, the microstructure layer 3 is provided with a plurality of saw teeth, the reflective film 7 is coated on the first surface 4 of each of the saw teeth, and an included angle between the first surface 4 and the bottom surface 6 of the microstructure layer 3 is an acute angle. The third reflective layer 2 comprises a substrate 8 and a linear black grid 9, and the substrate 8 is positioned between the linear black grid 9 and the second reflective layer 2.
It should be noted that the structures of the first reflective layer 2 and the second reflective layer 2 are similar to the structure of the reflective layer 2 in the first possible reflective structure, and details of this embodiment are not repeated herein.
In addition, the substrate 8 in the third reflective layer 2 is used to support the linear black grids 9, the material of the substrate 8 may be preset according to the use requirement, for example, the material of the substrate 8 may be PET, PVC, polycarbonate, or the like.
Further, the linear black matrix 9 may provide a light reflecting surface and a light transmitting surface. Referring to fig. 7, the linear black matrix 9 may include a first prism 10 and a second prism 11. The first prism 10 is positioned between the substrate 8 and the second prism 11, and the first prism 10 is arranged on the inclined surface of the second prism 11; the first prism 10 is for reflecting light, and the second prism 11 is for absorbing light incident to the second prism 11.
It should be noted that the first prism 10 may reflect red, green or blue light. For example, when the first reflective layer 2 is used to reflect red light and the second reflective layer 2 is used to reflect green light, the first prism 10 may reflect blue light; alternatively, the first prism 10 may reflect red light when the first reflective layer 2 is used to reflect green light and the second reflective layer 2 is used to reflect blue light. The second prism 11 may absorb light, for example, the second prism 11 may be a black prism.
For light incident on the third reflective layer 2, light directly incident on the substrate 8 in the third reflective layer 2 passes through the substrate 8 and is incident on the first prisms 10 in the linear black matrix 9, and a part of the light (blue, red, or green) is reflected by the first prisms 10. In which light directly incident on the second prism 11 in the linear black matrix 9 is absorbed. Since the light directly incident on the substrate 8 in the third reflective layer 2 is generally light of a projector incident from the front of the display screen, and the light directly incident on the second prism 11 in the linear black matrix 9 is generally external ambient light, the light is reflected by the first prism 10 and absorbed by the second prism 11, so that the influence of the ambient light on the contrast of the screen display screen can be reduced, and the screen display effect can be improved.
In order to achieve a better picture display effect, the display screen can reflect red light, green light and blue light in the light incident to the display screen, and can also absorb the light which is not reflected. Several possible absorbent structures are described below.
A first possible absorbent structure: on the basis of the first possible reflective structure described above, the display screen may further comprise an absorbing layer 12, see fig. 8. The three reflective layers 2 are located between the light-resistant layer 1 and the absorbing layer 12, and the absorbing layer 12 is used for absorbing light incident to the absorbing layer 12.
The material of the absorption layer 12 may be preset according to the use requirement, for example, the absorption layer 12 may be a black material.
Specifically, when light incident into the display screen passes through the light-resistant layer 1 and is incident into the three reflection layers 2, red light, green light and blue light of the light are respectively reflected by the three reflection layers 2, and the rest light which is not reflected passes through the three reflection layers 2 and is incident into the absorption layer 12 and is then absorbed by the absorption layer 12, so that the influence of the light which is not reflected on the contrast of a screen display picture can be reduced, and the picture display effect is improved.
A second possible absorbent structure: the third reflective layer 2 absorbs light that is not reflected by the third reflective layer 2.
In this case, the third reflective layer 2 can reflect not only red light, blue light, or green light, but also absorb light that is not reflected by the third reflective layer 2, and thus, the structure is simple and the cost can be saved.
Referring to fig. 6, the third reflective layer 2 may include a substrate 8 and a linear black grid 9, and the substrate 8 is located between the linear black grid 9 and the second reflective layer 2. Therein, referring to fig. 7, the linear black matrix 9 may include a first prism 10 and a second prism 11. The first prism 10 is positioned between the substrate 8 and the second prism 11, and the first prism 10 is arranged on the inclined surface of the second prism 11; the first prism 10 is for reflecting light, and the second prism 11 is for absorbing light incident to the second prism 11.
It should be noted that the first prism 10 may reflect red, green or blue light. For example, when the first reflective layer 2 is used to reflect red light and the second reflective layer 2 is used to reflect green light, the first prism 10 may reflect blue light; alternatively, the first prism 10 may reflect red light when the first reflective layer 2 is used to reflect green light and the second reflective layer 2 is used to reflect blue light. The second prism 11 may absorb light, for example, the second prism 11 may be a black prism.
In this case, for the light incident to the third reflective layer 2, the light directly incident to the substrate 8 in the third reflective layer 2 may pass through the substrate 8 and be incident on the first prisms 10 in the linear black matrix 9, a part of the light (blue light, red light, or green light) may be reflected by the first prisms 10, and the rest of the light may pass through the first prisms 10 and be incident on the second prisms 11 and then be absorbed by the second prisms 11, so that the influence of the light which is not reflected on the contrast of the screen display screen may be reduced, and the screen display effect may be improved.
Further, referring to fig. 9, the display screen may further include a diffusion layer 13. The diffusion layer 13 is located between any two adjacent reflection layers 2 among the three reflection layers 2, and the diffusion layer 13 is for diffusing light incident to the diffusion layer 13.
It should be noted that the diffusion layer 13 may include a substrate and a plurality of chemical particles, the refractive index of the substrate and the refractive index of the chemical particles may be different, and the chemical particles may be scattering particles, for example, the chemical particles may be silica gel particles. The diffusion layer 13 can uniformly diffuse light incident to the diffusion layer 13, forward propagate, and play a role in widening a visual angle and softening the light, and also play a role in improving the brightness.
Specifically, when light enters the diffusion layer 13, the light continuously passes through the base material and the chemical particles with different refractive indexes, and the light is refracted, reflected and scattered for multiple times, so that the light can be diffused.
For ease of understanding, the display screen provided in the embodiment of the present application is illustrated below with reference to fig. 10.
Fig. 10 is a schematic diagram of a light propagation process in a display screen according to an embodiment of the present application. When a display screen is used for displaying, light 15 emitted by the projector 14 can penetrate through the light-resistant layer 1 in the display screen to be incident on the microstructure layer 3 coated with the red light reflecting film 7 in the first reflecting layer 2, and at the moment, red light 16 in the incident light is reflected by the red light reflecting film 7 and then is emitted from the screen; the rest light 17 continuously passes through the red light reflecting film 7 and the substrate 8 in the first reflecting layer 2 and then enters the microstructure layer 3 coated with the green light reflecting film 7 in the second reflecting layer 2, and at the moment, green light 18 in the incident light is reflected by the green light reflecting film 7 and then is emitted from a screen; the rest light 19 continuously passes through the green light reflecting film 7 and the substrate 8 in the first reflecting layer 2 and then is incident on the microstructure layer 3 coated with the blue light reflecting film 7 in the third reflecting layer, and at the moment, the blue light 20 in the incident light is reflected by the blue light reflecting film 7 and then is emitted from the screen; the remaining light 21 passes through the blue reflection film 7 and the substrate 8 in the third reflection layer 2, is incident on the absorption layer 12, and is then absorbed by the absorption layer 12. Thus, the light emitted from the display screen and entering human eyes is red light 16, green light 18 and blue light 20, so that spectrum selection is realized, and the contrast of a screen display picture is improved.
In the embodiment of the present application, the display screen includes the light-resistant layer 1 and three reflective layers 2. The light incident to the display screen can be incident to the three reflecting layers 2 through the light-resistant layer 1, the three reflecting layers 2 can respectively reflect red light, green light and blue light, and then the reflected red light, green light and blue light can enter human eyes after being emitted from the display screen. Because the red light, the green light and the blue light are the three primary colors of the color light, the contrast of the picture displayed in the display screen can be improved, and the color display effect of the display screen is improved.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A display screen, characterized in that the display screen comprises: a light-resistant layer (1) and three reflecting layers (2);
a first one (2) of the three reflective layers (2) is located between the light-resistant layer (1) and a second one (2) of the three reflective layers (2), the second one (2) being located between the first one (2) and a third one (2) of the three reflective layers (2);
the light-resistant layer (1) is used for scattering light incident to the light-resistant layer (1); one (2) of the three reflective layers (2) is used for reflecting red light, the other reflective layer (2) is used for reflecting green light, and the other reflective layer (2) is used for reflecting blue light.
2. A display screen according to claim 1, characterised in that each reflective layer (2) of the three reflective layers (2) comprises a microstructure layer (3), a reflective film (7) and a substrate (8);
reflective film (7) are located micro-structure layer (3) with between base plate (8), be provided with a plurality of sawtooth on micro-structure layer (3), reflective film (7) coat in on the first surface of every sawtooth in a plurality of sawtooth, the first surface with contained angle between bottom surface (6) of micro-structure layer (3) is the acute angle.
3. A display screen according to claim 2, characterised in that the microstructure layer (3) is a fresnel lens.
4. A display screen according to claim 2, characterised in that the display screen further comprises an absorbing layer (12);
the three reflecting layers (2) are positioned between the light-resisting layer (1) and the absorption layer (12), and the absorption layer (12) is used for absorbing light incident to the absorption layer (12).
5. A display screen according to claim 2, characterised in that the material of the reflective film (7) is silicon dioxide, titanium or niobium pentoxide.
6. A display screen according to claim 1, characterised in that the third reflective layer (2) is also arranged to absorb light that is not reflected by the third reflective layer (2).
7. A display screen according to claim 6 characterised in that the third reflective layer (2) comprises a substrate (8) and a linear black grid (9);
the substrate (8) is positioned between the linear black grid (9) and the second reflective layer (2).
8. A display screen according to claim 7 characterised in that the linear black grid (9) comprises a first prism (10) and a second prism (11);
the first prism (10) is positioned between the substrate (8) and the second prism (11), and the first prism (10) is arranged on the inclined surface of the second prism (11);
the first prism (10) is used for reflecting light, and the second prism (11) is used for absorbing the light incident to the second prism (11).
9. A display screen according to claim 2 or 7, characterised in that the material of the substrate (8) is polyethylene terephthalate, polyvinyl chloride or polycarbonate.
10. A display screen according to any one of claims 1 to 9, characterised in that the display screen further comprises a diffuser layer (13);
the diffusion layer (13) is located between any two adjacent reflection layers (2) of the three reflection layers (2), and the diffusion layer (13) is used for diffusing light incident to the diffusion layer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910852812.1A CN112558397A (en) | 2019-09-10 | 2019-09-10 | Display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910852812.1A CN112558397A (en) | 2019-09-10 | 2019-09-10 | Display screen |
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| CN112558397A true CN112558397A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910852812.1A Pending CN112558397A (en) | 2019-09-10 | 2019-09-10 | Display screen |
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