Display screen and electronic device

Abstract

The present invention discloses a display screen and an electronic device. The disclosed display screen includes a light-emitting layer and a light-transmitting layer laminated on the light-emitting layer. Among them: the light-transmitting layer includes a first flat region and a slope region, the slope region is connected to the first flat region, and the light-emitting layer includes a first light-emitting region and a second light-emitting region connected to the first light-emitting region; the first light-emitting region is opposite to the first flat region, and the first light emitted by the first light-emitting region passes through the first flat region and is emitted along a preset direction; the second light-emitting region is opposite to the slope region, and the second light emitted by the second light-emitting region passes through the slope region and is emitted along the preset direction.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic equipment, and in particular to a display screen and an electronic equipment. Background Art

[0002] As electronic devices become thinner and lighter, the display screens of electronic devices are also designed to be thinner. However, the thinner the display screen is designed, the lower the strength of the display screen will be. In order to improve the strength of the display screen when the display screen is thin, the related art adopts an unequal thickness design for the light-transmitting layer of the display screen, that is, the light-transmitting layer is thickened in some areas to enhance the local strength of the light-transmitting layer, which will form a slope in the transition area between the thicker and thinner light-transmitting layer. When light passes through the flat area and the slope area of the light-transmitting layer, the refraction of light will cause the flat area and the slope area to have different display brightness, which will reduce the display quality of the electronic device. Summary of the invention

[0003] The invention discloses a display screen and an electronic device, so as to solve the problem in the related art that the display screen has different display brightness between a flat area and a slope area, resulting in poor display effect.

[0004] In order to solve the above-mentioned technical problems, the present invention is achieved as follows:

[0005] In a first aspect, the present application discloses a display screen, comprising a light-emitting layer and a light-transmitting layer stacked on the light-emitting layer; wherein:

[0006] The light-transmitting layer includes a first flat region and a slope region, wherein the slope region is connected to the first flat region, and the light-emitting layer includes a first light-emitting region and a second light-emitting region connected to the first light-emitting region;

[0007] The first light emitting area is opposite to the first flat area, and the first light emitted by the first light emitting area passes through the first flat area and then is emitted along a preset direction;

[0008] The second light emitting area is opposite to the slope area, and the second light emitted by the second light emitting area passes through the slope area and then is emitted along the preset direction.

[0009] In a second aspect, the present application further discloses an electronic device, and the disclosed electronic device includes the display screen described in the first aspect.

[0010] The technical solution adopted by the present invention can achieve the following technical effects:

[0011] In the display screen disclosed in the embodiments of the present application, by making the first light-emitting region face the first flat region and the second light-emitting region face the slope region, the first light emitted by the first light-emitting region can pass through the first flat region and be emitted in a preset direction, and the second light emitted by the second light-emitting region can pass through the slope region and be emitted in the preset direction. As a result, when there is a slope region in the light-transmitting layer, the first light emitted from the first flat region and the second light emitted from the slope region both face the preset direction. Furthermore, the display brightness of the display screen is the same in the first flat region and the slope region, so that the brightness of the first light received by the user from the first flat region and the second light emitted from the slope region is the same. This can ensure the consistency of the display brightness of the display screen, thereby solving the problem in the related art that due to the existence of a slope region in the light-transmitting layer of the display screen, when light passes through the flat region and the slope region of the light-transmitting layer, the angles of the light emitted in the flat region and the slope region are different due to the refraction of light, resulting in different display brightness in the flat region and the slope region and poor display effects. Description of the Drawings

[0012] Figure 1 It is a partial schematic diagram of the first display screen disclosed in the embodiments of the present invention;

[0013] Figure 2 It is a partial schematic diagram of the second display screen disclosed in the embodiments of the present invention;

[0014] Figure 3 It is an overall schematic diagram of the display screen disclosed in the embodiments of the present invention.

[0015] Description of the Reference Numerals:

[0016] 100 - Light-emitting layer, 110 - First light-emitting region, 111 - First light-emitting pixel array, 120 - Second light-emitting region, 121 - Second light-emitting pixel array, 121a - Light-emitting unit, 130 - Third light-emitting region

[0017] 200 - Light-transmitting layer, 210 - First flat region, 220 - Slope region, 221 - Arc-shaped slope, 230 - Second flat region,

[0018] 300 - Reflective member, 400 - Display area, 500 - Concave portion, 600 - First light-transmitting adhesive layer, 700 - Support layer, 800 - Polarizer, 910 - Second light-transmitting adhesive layer, 920 - Protective film. Detailed Embodiments

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0020] The following will, with reference to the drawings, elaborate on the technical solutions disclosed in each embodiment of the present invention.

[0021] Please refer to Figures 1 to 3 , an embodiment of the present invention discloses a display screen. The disclosed display screen can be a display screen of electronic devices such as mobile phones, tablets, game consoles, etc., and in particular, can be a display screen of foldable mobile phones, foldable tablets, foldable game consoles, etc.

[0022] The display screen includes a light-emitting layer 100 and a light-transmitting layer 200 laminated on the light-emitting layer 100. The light-emitting layer 100 can emit light for the display of the screen of the display screen. The light-transmitting layer 200 can be a glass cover plate. Of course, the light-transmitting layer 200 can also be a cover plate of other materials (such as a resin cover plate). The light-transmitting layer 200 is usually the touch layer of the display screen and can be used to protect other components of the display screen.

[0023] The light-transmitting layer 200 includes a first flat region 210 and a slope region 220, and the slope region 220 is connected to the first flat region 210. The first flat region 210 is a region where the two opposite surfaces of the light-transmitting layer 200 are parallel, and the slope region 220 is a region where at least one of the two opposite surfaces of the light-transmitting layer 200 has a certain inclination angle with respect to the surface of the first flat region 210. That is, the light-transmitting layer 200 forms a slope at the connection between the first flat region 210 and the slope region 220. The slope can be a convex slope on the light-transmitting layer 200, or a concave slope on the light-transmitting layer 200, and no specific limitation is made here.

[0024] The light-emitting layer 100 includes a first light-emitting region 110 and a second light-emitting region 120 connected to the first light-emitting region 110. The first light-emitting region 110 is opposite to the first flat region 210, and the first light emitted by the first light-emitting region 110 passes through the first flat region 210 and is emitted in a preset direction. The first light emitted by the first light-emitting region 110 can be perpendicularly incident on the first flat region 210. Of course, the first light emitted by the first light-emitting region 110 can also be obliquely incident on the first flat region 210.

[0025] The second light-emitting region 120 faces the slope region 220. The second light rays emitted by the second light-emitting region 120 pass through the slope region 220 and are emitted in a preset direction, so that the second light rays emitted from the second light-emitting region 120 and the first light rays emitted from the first light-emitting region 110 are parallel. Specifically, in order to make the second light rays emitted from the second light-emitting region 120 and the first light rays emitted from the first light-emitting region 110 parallel, the angle of the second light rays emitted by the second light-emitting region 120 and directed towards the slope region 220 can be adjusted, or the angle of the first light rays emitted by the first light-emitting region 110 and directed towards the first flat region 210 can be adjusted. Further, after the first light rays and the second light rays are refracted by the light-transmitting layer 200, the second light rays emitted from the second light-emitting region 120 and the first light rays emitted from the first light-emitting region 110 are parallel.

[0026] In the display screen disclosed in the embodiment of the present application, by making the first light-emitting region 110 face the first flat region 210 and the second light-emitting region 120 face the slope region 220, the first light rays emitted by the first light-emitting region 110 can pass through the first flat region 210 and be emitted in a preset direction, and the second light rays emitted by the second light-emitting region 120 can pass through the slope region 220 and be emitted in a preset direction. Thus, when there is a slope region 220 in the light-transmitting layer 200, the first light rays emitted from the first flat region 210 and the second light rays emitted from the slope region 220 both face the preset direction. Further, the display brightness of the display screen in the first flat region 210 and the slope region 220 is made consistent, so that the brightness of the first light rays received by the user from the first flat region 210 and the second light rays emitted from the slope region 220 is the same. Further, the consistency of the display brightness of the display screen can be ensured, and thus the problem in the related art that due to the presence of a slope region in the light-transmitting layer of the display screen, when light passes through the flat region and the slope region of the light-transmitting layer, the angles of the light rays emitted in the flat region and the slope region are different due to the refraction of the light rays, resulting in different display brightness in the flat region and the slope region and poor display effects can be solved.

[0027] Specifically, when implementing that both the first light ray emitted from the first flat region 210 and the second light ray emitted from the slope region 220 are directed towards a preset direction, the angle of the first light ray emitted from the first flat region 210 can be determined first, and then the included angle θ2 between the normal line of the slope region 220 and the first light ray can be determined. After θ2 is determined, θ1 can be determined according to n1·sinθ1 = n2·sinθ2, where n1 is the refractive index of the light-transmitting layer 200, n2 is the refractive index of the medium layer into which the light ray enters after exiting the light-transmitting layer 200, and n1 and n2 are determined values. Thus, θ1 can be determined, where θ1 is the included angle between the second light ray and the normal line of the slope region 220 when the second light ray is incident on the slope region 220. After the path of the first light ray is determined, by adjusting the angle at which the second light-emitting region 120 emits the second light ray, it can be achieved that both the first light ray emitted from the first flat region 210 and the second light ray emitted from the slope region 220 are directed towards the preset direction.

[0028] To improve the screen display of the display screen, optionally, the preset direction can be perpendicular to the first flat region 210, so that both the first light ray and the second light ray can be emitted perpendicular to the first flat region 210, thereby reducing the loss of the first light ray and the second light ray at other angles, and thus improving the brightness of the screen display of the display screen.

[0029] To make the first light ray and the second light ray emit in a direction perpendicular to the first flat region 210, optionally, the first light-emitting region 110 can include a first light-emitting pixel array 111, and the first light-emitting pixel array 111 can be used to emit the first light ray. The second light-emitting region 120 can include a second light-emitting pixel array 121, and the second light-emitting pixel array 121 can be used to emit the second light ray. The orientation of the light-emitting surface of the first light-emitting pixel array 111 is perpendicular to the first flat region 210, and the orientation of the light-emitting surface of the second light-emitting pixel array 121 is inclined with respect to the first flat region 210, so that the second light ray can be emitted in the preset direction after passing through the slope region 220.

[0030] Specifically, the orientation of the light-emitting surface of the first light-emitting pixel array 111 being perpendicular to the first flat region 210 means the orientation of the light-emitting surface of the first light-emitting pixel array 111 when the first light ray emitted by the first light-emitting pixel array 111 is perpendicularly incident on the first flat region 210. The orientation of the light-emitting surface of the second light-emitting pixel array 121 being inclined with respect to the first flat region 210 means the orientation of the light-emitting surface of the second light-emitting pixel array 121 when the second light ray emitted by the second light-emitting pixel array 121 is inclined with respect to the first flat region 210.

[0031] Due to the existence of the slope region, when the first light rays emitted by the first light-emitting pixel array 111 and the second light rays emitted by the second light-emitting pixel array 121 both shoot towards the first flat region 210 and the slope region 220 respectively along the direction perpendicular to the first flat region 210, the second light rays will refract in the slope region and cannot shoot out perpendicular to the first flat region 210. As a result, the first light rays and the second light rays are not parallel when shooting out from the light-transmitting layer 200, which will cause the display brightness at the first flat region 210 and the slope region 220 of the display screen to be different. Therefore, in the embodiment of the present application, by tilting the light-emitting surface of the second light-emitting pixel array 121 relative to the first flat region 210, the second light rays emitted by the second light-emitting pixel array 121 can refract in the slope region 220 after shooting towards the slope region 220, so that the second light rays shooting out from the slope region 220 can be parallel to the first light rays shooting out from the first flat region 210. Specifically, the orientation of the light-emitting surface of the second light-emitting pixel array 121 is set according to when the second light rays shooting out from the slope region 220 are parallel to the first light rays shooting out from the first flat region 210.

[0032] In the embodiment of the present application, by setting the orientation of the light-emitting surface of the first light-emitting pixel array 111 to be perpendicular to the first flat region 210 and setting the orientation of the light-emitting surface of the second light-emitting pixel array 121 to be inclined relative to the first flat region 210, the first light rays shooting out from the first flat region 210 and the second light rays shooting out from the slope region 220 can be made parallel, and further the brightness consistency at the first flat region 210 and the slope region 220 of the display screen can be achieved.

[0033] In some application environments, the slope of the slope region 220 needs to be set as an arc-shaped slope 221. For example, when the display screen is a folding screen, the slope region 220 can be set as an arc-shaped slope 221, so that the slope region 220 can be used as a bending part, and the display screen can smoothly transition at the bending position, thereby reducing the stress during bending. Specifically, the slope of the slope region 220 can be an arc-shaped slope 221, and the arc-shaped slope 221 can be composed of a plurality of successively connected sub-regions along its arc extension direction. The second light-emitting pixel array 121 can include a plurality of light-emitting units 121a, and the plurality of light-emitting units 121a can correspond to the sub-regions one by one. The orientations of the light-emitting surfaces of the plurality of light-emitting units 121a can all be inclined relative to the first flat region 210, and the orientations of the light-emitting surfaces of the plurality of light-emitting units 121a are all different.

[0034] In the embodiment of the present application, by making the multiple light-emitting units 121a of the second light-emitting pixel array 121 correspond to the sub-regions of the slope region 220 one by one, the orientations of the light-emitting surfaces of the multiple light-emitting units 121a are all inclined relative to the first flat region 210, and the orientations of the light-emitting surfaces of the multiple light-emitting units 121a are all different. Thus, it is ensured that the light emitted by each light-emitting unit 121a can be parallel to the first light ray emitted from the first flat region 210 after being refracted by the corresponding sub-region.

[0035] In an alternative embodiment, the slope of the slope region 220 can be an inclined plane, and the inclined plane can include multiple successively connected sub-regions along its inclined direction. The second light-emitting pixel array 121 can include multiple light-emitting units, and the multiple light-emitting units can correspond to the sub-regions one by one. The orientations of the light-emitting surfaces of the multiple light-emitting units are all inclined relative to the first flat region 210, and the orientations of the light-emitting surfaces of the multiple light-emitting units can be the same.

[0036] In the embodiment of the present application, the slope of the slope region 220 is set as an inclined plane, making the structure of the slope region 220 simpler, and thus the structure of the light-transmitting layer 200 can be made simpler.

[0037] In an alternative embodiment, the first light-emitting region can include a first light-emitting pixel array for emitting a first light ray, and the second light-emitting region can include a second light-emitting pixel array for emitting a second light ray. The orientations of both the first light-emitting pixel array and the second light-emitting pixel array can be perpendicular to the first flat region 210. The display screen can further include a reflector 300 disposed between the slope region 220 and the second light-emitting region 120. The second light ray emitted by the second light-emitting region 120 can be reflected by the reflector 300 and then directed towards the slope region 220. Among them, the second light ray reflected by the reflector 300 and directed towards the slope region 220 is inclined relative to the first flat region 210, so that the second light ray entering the slope region 220 is emitted along a preset direction.

[0038] In the embodiment of the present application, by setting the orientations of the first light-emitting pixel array and the second light-emitting pixel array to be perpendicular to the first flat area, the orientations of the first light-emitting pixel array and the second light-emitting pixel array are arranged regularly; by providing the reflector 300, the second light emitted from the second light-emitting area 120 can be reflected by the reflector 300 and then projected onto the slope area 220, and the second light projected onto the slope area 220 after being reflected by the reflector 300 is inclined relative to the first flat area 210, so that the second light can be emitted in a direction perpendicular to the first flat area 210 after being projected onto the slope area 220, thereby making it easier to achieve by adjusting the reflector when, during manufacturing, the second light is to be emitted in a direction perpendicular to the first flat area 210 after being projected onto the slope area 220.

[0039] In the related art, in order to maintain good bending performance, the folding screen needs to be designed relatively thin, so the strength of the folding screen is relatively low. In order to make the folding screen have both good bendability and high strength, optionally, the display screen can be a folding screen, the slope area 220 can be concave with respect to the light-transmitting layer 200, and the slope area 220 can be located at the bending part of the folding screen.

[0040] In the embodiment of the present application, by setting the slope area 220 to be concave with respect to the light-transmitting layer 200, the thickness of the slope area 220 is relatively thinner than the thickness of the first flat area 210, so that the slope area 220 is used as the bending part of the folding screen, making the folding screen have good folding function. Keeping the first flat area 210 relatively thick can make the folding screen have a certain strength.

[0041] Specifically, the display screen can include two display areas 400. Each part of the light-transmitting layer 200 located in each display area 400 can include a first flat area 210 and a slope area 220. Each part of the light-emitting layer 100 located in each display area 400 can include a first light-emitting area 110 and a second light-emitting area 120 connected thereto. The two display areas 400 are connected and symmetrically distributed. The slope areas 220 of the two display areas 400 are connected to form the concave part 500 of the display screen, and the concave part 500 can be located at the bending part of the folding screen.

[0042] In the embodiment of the present application, by setting the display screen to include two display areas 400, when the display screen is in the unfolded state, the two display areas can jointly display the picture. When the display screen is in the folded state, one of the two display areas displays the picture. By connecting the slope areas 220 of the two display areas 400 to form the concave part 500 of the display screen, and the concave part 500 can be located at the bending part of the folding screen, the thickness of the display screen at the bending part is relatively low, so that the folding function of the display screen can be better realized.

[0043] Optionally, the light-transmitting layer 200 may further include a second flat region 230, the second flat region 230 may be connected between the slope regions 220 of the two display regions 400, and the second flat region 230 and the slope regions 220 of the two display regions 400 may together enclose an inner concave portion 500. Specifically, the thickness of the second flat region 230 may be 30um to 50um, and the thickness of the first flat region 210 may be 100um to 200um. The light-emitting layer 100 may include a third light-emitting region 130, and the third light emitted by the third light-emitting region 130 passes through the second flat region 230 and is emitted in a preset direction. Since the first flat region 210 and the second flat region 230 are both flat regions, the first light emitted by the first light-emitting region 110 and the second light emitted by the second light-emitting region 120 may be parallel.

[0044] In the embodiment of the present application, the second flat area 230 is provided so that the slope areas 220 of the two display areas 400 can be connected to the second flat area 230 when they are recessed in the light-transmitting layer 200. Thus, when the recessed portion 500 is formed, the problem of insufficient strength of the display screen caused by the slope area 220 being recessed too deeply and the recessed portion 500 being too thin can be avoided.

[0045] In an optional embodiment, the display screen may further include a first light-transmitting adhesive layer 600 , which may be connected between the light-transmitting layer 200 and the light-emitting layer 100 , and the refractive index of the first light-transmitting adhesive layer 600 may be consistent with the refractive index of the light-transmitting layer 200 .

[0046] In the embodiment of the present application, the first light-transmitting adhesive layer 600 is provided so that the first light-transmitting adhesive layer 600 can connect the light-transmitting layer 200 with the light-emitting layer 100. By making the refractive index of the first light-transmitting adhesive layer 600 consistent with the refractive index of the light-transmitting layer 200, refraction of the first light ray and the second light ray when entering the light-transmitting layer 200 from the first light-transmitting adhesive layer 600 can be avoided. As a result, when the first light ray passing through the first flat area 210 is parallel to the second light ray passing through the slope area 220, it is easier to adjust the angle of the first light ray emitted from the first light-emitting area 110 and the angle of the second light ray emitted from the second light-emitting area 120.

[0047] Optionally, the display screen further includes a support layer 700 , which can be disposed on a side of the light-emitting layer 100 away from the light-transmitting layer 200 . The support layer 700 can be connected to the light-emitting layer 100 , and the support layer 700 can serve as a support base for the entire display screen.

[0048] Furthermore, the display screen may further include a polarizing layer 800 , and the polarizing layer 800 may be disposed between the light emitting layer 100 and the first light-transmitting adhesive layer 600 .

[0049] Optionally, the display screen may further include a second light-transmitting adhesive layer 910 and a protective film 920 . The second light-transmitting adhesive layer 910 may be disposed on the light-transmitting layer 200 and may be located on the side of the light-transmitting layer 200 facing away from the light-emitting layer 100 . The second light-transmitting adhesive layer 910 may be connected between the light-transmitting layer 200 and the protective film 920 .

[0050] In the embodiment of the present application, the protective film 920 is connected to the light-transmitting layer 200 through the second light-transmitting adhesive layer 910 , so that the light-transmitting layer 200 can be protected.

[0051] The present application also discloses an electronic device, which includes the display screen in the above embodiment. The present application embodiment adopts the display screen in the above embodiment, thereby solving the problem of different display brightness of the display screen in the flat area and the slope area.

[0052] In the above embodiment, when the first light emitting area 110 and the second light emitting area 120 emit the first light and the second light respectively, the brightness of the emitted first light and the second light is the same, that is, the first light emitting area 110 and the second light emitting area 120 can use light emitting units with the same emission brightness.

[0053] The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0054] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A display screen, characterized in that, It includes a light-emitting layer (100) and a light-transmitting layer (200) laminated on the light-emitting layer (100); wherein: The light-transmitting layer (200) includes a first flat area (210) and a slope area (220), the slope area (220) is connected to the first flat area (210), and the light-emitting layer (100) includes a first light-emitting area (110) and a second light-emitting area (120) connected to the first light-emitting area (110); The first light-emitting area (110) includes a first light-emitting pixel array (111) for emitting first light, the first light-emitting area (110) is opposite to the first flat area (210), and the first light emitted by the first light-emitting area (110) passes through the first flat area (210) and is emitted in a preset direction; the second light-emitting area (120) includes a second light-emitting pixel array (121) for emitting second light, the second light-emitting area (120) is opposite to the slope area (220), and the second light emitted by the second light-emitting area (120) passes through the slope area (220) and is emitted in the preset direction; The orientations of the first light-emitting pixel array (111) and the second light-emitting pixel array (121) are both perpendicular to the first flat area (210), and the display screen further includes a reflector (300) disposed between the slope area (220) and the second light-emitting area (120) and used to reflect the second light to the slope area (220), and the second light reflected to the slope area (220) is inclined with respect to the first flat area (210) so that the second light entering the slope area (220) is emitted in the preset direction.

2. The display screen according to claim 1, wherein The preset direction is perpendicular to the first flat area (210).

3. The display screen according to claim 1, wherein The display screen is a folding screen, the slope area (220) is concave in the light-transmitting layer (200), and the slope area (220) is located at the bending part of the folding screen.

4. The display screen according to claim 3, wherein The display screen includes two display areas (400), and the part of the light-transmitting layer (200) located in each display area (400) includes a first flat area (210) and a slope area (220), and the part of the light-emitting layer (100) located in each display area (400) includes a first light-emitting area (110) and a second light-emitting area (120) connected thereto. The two display areas (400) are connected and symmetrically distributed, and the slope areas (220) of the two display areas (400) are connected to form an inner concave part (500) of the display screen, and the inner concave part (500) is located at the bending part of the folding screen.

5. The display screen according to claim 4, wherein The light-transmissive layer (200) further includes a second flat region (230) connected between the slope regions (220) of the two display regions (400), and the second flat region (230) and the slope regions (220) of the two display regions (400) together define the concave portion (500).

6. The display screen according to claim 1, wherein The display screen further includes a first light-transmissive adhesive layer (600) connected between the light-transmissive layer (200) and the light-emitting layer (100), and the refractive index of the first light-transmissive adhesive layer (600) is consistent with the refractive index of the light-transmissive layer (200).

7. An electronic device, characterized in that, A display screen according to any one of claims 1 to 6 is included.

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