Display device and imaging method for display device

Abstract

The embodiments of the present application disclose a display device and a camera method for the display device. The display device includes: a display module including a display panel and a protective cover, wherein the display panel includes a first end in a first direction, the protective cover is arranged on the display side of the display panel, and the protective cover extends beyond the first end to form a first edge portion; a camera arranged corresponding to the back side of the display module, the camera is used to form a first image; a photosensitive component is arranged on the back side of the first edge portion, the photosensitive component is used to form a second image; wherein the first image and the second image are fused to form a captured image of the display device. The present application forms a captured image of the display device by fusing the first image and the second image. The second image formed by the photosensitive component supplements the portion of the first image formed by the camera with a limited viewing angle or a portion with blocked transmittance, thereby solving the problem of the limited viewing angle of the first image.

Description

Technical Field

[0001] The present application relates to the field of display, and in particular to a display device and a camera method for the display device. Background Art

[0002] The under-screen camera (CAM) technology increases the screen-to-body ratio by placing the camera under the display panel, while making the entire display product more aesthetically pleasing. It has been increasingly widely used in display products including car displays. Existing under-screen camera technology generally places a fixed camera under the display panel, and at the same time, makes part of the display panel above the camera pixel-free or adjusts the pixel arrangement to improve the transmittance of the display panel above the camera, but the transmittance still cannot reach 100%. Because external light must pass through the protective cover and display panel before entering the camera, there will still be significant loss when external light enters the camera, affecting the clarity of the image captured by the camera and other performance. At the same time, due to the fixed position of the car display panel, the viewing angle of the under-screen camera is limited.

[0003] Therefore, the current under-screen camera technology has the problem of large loss of external light entering the camera, which reduces the quality of images taken by the camera and limits the camera's viewing angle. Summary of the Invention

[0004] The embodiments of the present application provide a display device and a camera method for the display device, which can solve the problem of large loss of external light entering the camera in the current under-screen camera technology, resulting in reduced image quality captured by the camera and limited viewing angle of the camera.

[0005] An embodiment of the present application provides a display device, including:

[0006] A display module, comprising a display panel and a protective cover, wherein the display panel includes a first end in a first direction, the protective cover is disposed on a display side of the display panel, the width of the protective cover at least in the first direction is greater than the width of the display panel in the first direction, and the protective cover extends beyond the first end to form a first edge portion;

[0007] a camera, disposed corresponding to the back side of the display module, and configured to form a first image;

[0008] a photosensitive member disposed on the back side of the first edge portion, the photosensitive member being used to form a second image;

[0009] The first image and the second image are fused to form a captured image of the display device.

[0010] Optionally, in some embodiments of the present application, the photosensitive member includes:

[0011] a photosensitive layer, wherein the photosensitive layer can convert light signals into electrical signals;

[0012] The liquid crystal lens layer is disposed between the photosensitive layer and the protective cover, and the lens layer is used to adjust the focal length of the photosensitive member.

[0013] Optionally, in some embodiments of the present application, the liquid crystal lens layer includes a lens substrate, a first electrode layer, a second electrode layer, and a liquid crystal layer sandwiched between the first electrode layer and the second electrode layer, and the first electrode layer and the second electrode layer drive the liquid crystal molecules in the liquid crystal layer to rotate;

[0014] The lens substrate is arranged on the back side of the first edge portion of the protection cover, the first electrode layer is arranged on the back surface of the first edge portion of the protection cover, and the second electrode layer is arranged on the surface of the lens substrate close to the protection cover.

[0015] Optionally, in some embodiments of the present application, the first electrode layer and the second electrode layer respectively include a plurality of first sub-electrodes and a plurality of second sub-electrodes, and a first sub-electrode and a corresponding second sub-electrode are correspondingly arranged to form a focus adjustment electrode pair;

[0016] The photosensitive layer is arranged corresponding to the center of the first electrode layer and the second electrode layer.

[0017] Optionally, in some embodiments of the present application, the photosensitive layer is arranged on the surface of the lens substrate away from the protective cover.

[0018] Optionally, in some embodiments of the present application, the display panel includes a light-transmitting area, which can display images and transmit external light, and the camera is arranged on the back side of the light-transmitting area.

[0019] Optionally, in some embodiments of the present application, the display panel includes a display panel body and a backlight arranged on the back side of the display panel body, at least the backlight includes an opening, and the camera is arranged corresponding to the opening.

[0020] Optionally, in some embodiments of the present application, the photosensitive layer includes at least one photosensitive element, and the photosensitive element is a photodiode or a phototransistor.

[0021] Accordingly, the present application also provides a method for photographing a display device, wherein photographing is performed using any of the above-mentioned display devices, and the method for photographing a display device comprises the following steps:

[0022] S100, capturing the first image after adjusting the camera to a first focal length;

[0023] S200, calculating a second focal length of the liquid crystal lens layer according to the first focal length;

[0024] S300, focusing the liquid crystal lens layer to the second focal length;

[0025] S400, photographing the second image with the photosensitive member;

[0026] S500: The first image and the second image are merged to form a captured image of the display device.

[0027] Optionally, in some embodiments of the present application, the second focal length is equal to the first focal length minus the distance between the plane where the photosensitive element is located and the plane where the camera is located.

[0028] The present application provides a display device and a camera method for the display device. The display device comprises: a display module comprising a display panel and a protective cover, wherein the display panel comprises a first end in a first direction; the protective cover is disposed on a display side of the display panel, the width of the protective cover in at least the first direction being greater than the width of the display panel in the first direction, and the protective cover extends beyond the first end to form a first edge portion; a camera disposed on the back side of the display module, the camera being configured to form a first image; and a photosensitive member disposed on the back side of the first edge portion, the photosensitive member being configured to form a second image; wherein the first image and the second image are fused to form a captured image of the display device. The present application forms a captured image of the display device by fusing the first image and the second image. The photosensitive member is disposed on the back side of the first edge portion, and there is no display panel to block the photosensitive member. Therefore, the viewing angle of the second image formed by the photosensitive member is unrestricted, and the light transmittance is higher. The second image formed by the photosensitive member supplements the portion of the first image formed by the camera where the viewing angle is restricted or the transmittance is blocked, thereby improving the quality of the first image captured by the camera and resolving the problem of the first image being limited in viewing angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A first schematic top view of the display device provided in Example 1 of the present application;

[0031] Figure 2A first cross-sectional schematic diagram of the display device provided in the first embodiment of the present application;

[0032] Figure 3 A schematic diagram of the shape of the second sub-electrode provided in Example 1 of the present application;

[0033] Figure 4 A second cross-sectional schematic diagram of the display device provided in the first embodiment of the present application;

[0034] Figure 5 A third cross-sectional schematic diagram of the display device provided in the first embodiment of the present application;

[0035] Figure 6 This is a schematic diagram of the process steps of the camera method for the display device provided in Example 2 of the present application.

[0036] Reference numerals:

[0037] Display device 100, display module 200, display panel 20, display panel body 23, backlight 24, protective cover 10, camera 40, photosensitive member 30;

[0038] First end 201, first edge portion 101;

[0039] Photosensitive layer 301, liquid crystal lens layer 302, first electrode layer 33, second electrode layer 34, liquid crystal layer 32, lens substrate 31, first sub-electrode 331, multiple second sub-electrodes 341, focus adjustment electrode pair 334, photosensitive element 3011;

[0040] External light 50 , light-transmitting area 21 , first direction X, opening 241 . DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; and "inside" and "outside" refer to the outline of the device.

[0042] An embodiment of the present application provides a display device, which includes: a display module, including a display panel and a protective cover, the display panel including a first end in a first direction, the protective cover being arranged on the display side of the display panel, the width of the protective cover being greater than the width of the display panel in the first direction at least, and the protective cover extending beyond the first end to form a first edge portion; a camera being arranged corresponding to the back side of the display module, the camera being used to form a first image; a photosensitive component being arranged on the back side of the first edge portion, the photosensitive component being used to form a second image; wherein the first image and the second image are fused to form a captured image of the display device.

[0043] The embodiments of the present application also provide a method for capturing images using the above display device, which is described in detail below. It should be noted that the order of description of the following embodiments does not limit the preferred order of the embodiments.

[0044] Example 1

[0045] See also Figures 1 to 5 , Figure 1 A first schematic top view of the display device provided in Example 1 of the present application; Figure 2 A first cross-sectional schematic diagram of the display device provided in the first embodiment of the present application; Figure 3 A schematic diagram of the shape of the second sub-electrode provided in Example 1 of the present application; Figure 4 A second cross-sectional schematic diagram of the display device provided in the first embodiment of the present application; Figure 5 This is a third cross-sectional schematic diagram of the display device provided in Example 1 of the present application.

[0046] An embodiment of the present application provides a display device 100, which includes a display module 200, a camera 40 and a photosensitive member 30. The display module 200 includes a display panel 20 and a protective cover 10. The display panel 20 includes a first end 201 in a first direction X. The protective cover 10 is arranged on the display side of the display panel 20. The width of the protective cover 10 in at least the first direction X is greater than the width of the display panel 20 in the first direction X, and the protective cover 10 extends beyond the first end 201 to form a first edge portion 101; the camera 40 is arranged corresponding to the back side of the display module 200, and the camera 40 is used to form a first image; the photosensitive member 30 is arranged on the back side of the first edge portion 101, and the photosensitive member 30 is used to form a second image; wherein the first image and the second image are fused to form a captured image of the display device.

[0047] Specifically, the display module 200 includes a display panel 20 and a protective cover plate 10 (Coverglass, CG). The material of the protective cover plate 10 can be glass, etc., which is not limited here. When the display panel 20 is a liquid crystal display panel, the display panel 20 can include a display panel body and a backlight. The display panel body can include a color filter substrate and an array substrate. When the display panel 20 is an organic light-emitting display panel (OLED), the display panel 20 can include an array substrate, a light-emitting layer, and an encapsulation layer.

[0048] Specifically, the display panel 20 includes a first end 201 in the first direction X, and the protective cover 10 is arranged on the display side of the display panel 20. The display side of the display panel 20 refers to the side of the display panel 20 displaying the image, or the side of the display panel body 23 away from the backlight 24.

[0049] Specifically, the width of the protective cover 10 in at least the first direction X is greater than the width of the display panel 20 in the first direction X, and the protective cover 10 extends beyond the first end 201 to form a first edge portion 101. That is, the protective cover 10 protrudes relative to the first end 201 of the display panel 20 to form the first edge portion 101.

[0050] Specifically, the camera 40 is disposed corresponding to the back side of the display module 200 . The camera 40 is at least partially disposed on the back side of the display module 200 . For example, the camera 40 is disposed on the back side of the display module 200 .

[0051] Specifically, the protective cover 10 is disposed on the display side of the display panel 20 , and the photosensitive member 30 is disposed on the back side of the first edge portion 101 . That is, the display module 200 and the photosensitive member 30 are disposed side by side on the back side of the protective cover 10 .

[0052] Specifically, the back side of the protective cover plate 10 refers to a side of the protective cover plate 10 close to the display panel 20 .

[0053] Specifically, the fusion of the first image and the second image to form the captured image of the display device includes, but is not limited to: the second image and the first image are combined to form the captured image of the display device, or the second image supplements the first image in terms of brightness, image location, image color, etc. to form the captured image of the display device. The fusion of the first image and the second image to form the captured image of the display device means that the image quality of the first image is improved by the addition of the second image.

[0054] In this embodiment, a captured image of the display device is formed by fusing the first image and the second image. The photosensitive member 30 is arranged on the back side of the first edge portion 101, and there is no display panel 20 to block the photosensitive member 30. Therefore, the viewing angle of the second image formed by the photosensitive member 30 is not limited, and the transmittance of external light is higher. The second image formed by the photosensitive member 30 supplements the portion of the first image with limited viewing angle or blocked transmittance, thereby improving the quality of the first image captured by the camera 40 and solving the problem of limited viewing angle of the first image.

[0055] In some embodiments, the photosensitive member 30 includes a photosensitive layer 301 and a liquid crystal lens layer 302. The photosensitive layer 301 can convert optical signals into electrical signals; the liquid crystal lens layer 302 is arranged between the photosensitive layer 301 and the protective cover 10, and the liquid crystal lens layer 302 is used to adjust the focal length of the photosensitive member 30.

[0056] Specifically, the photosensitive layer 301 may convert the optical signal into an electrical signal to form a second image.

[0057] Specifically, the liquid crystal lens layer 302 is arranged between the photosensitive layer 301 and the protective cover 10. The lens layer 302 is used to adjust the focal length of the photosensitive component 30. The external light 50 first passes through the lens layer 302 and then reaches the photosensitive layer 301. The liquid crystal lens layer 302 can converge the light or increase the light intensity reaching the photosensitive layer 301, which can improve the clarity, brightness and other qualities of the second image.

[0058] In some embodiments, the liquid crystal lens layer 302 includes a lens substrate 31, a first electrode layer 33, a second electrode layer 34, and a liquid crystal layer 32 sandwiched between the first electrode layer 33 and the second electrode layer 34, and the first electrode layer 33 and the second electrode layer 34 drive the liquid crystal molecules in the liquid crystal layer 32 to rotate; the lens substrate 31 is arranged on the back side of the first edge portion 101 of the protective cover 10, the first electrode layer 33 is arranged on the back surface of the first edge portion 101 of the protective cover, and the second electrode layer 34 is arranged on the surface of the lens substrate 31 close to the protective cover 10.

[0059] Specifically, the liquid crystal lens layer 302 includes a lens substrate 31, a first electrode layer 33, a second electrode layer 34, and a liquid crystal layer 32. The liquid crystal layer 32 is arranged between the first electrode layer 33 and the second electrode layer 34. The first electrode layer 33 is arranged on the back surface of the first edge portion 101 of the protective cover 10. This can reduce the use of a substrate for the liquid crystal lens layer 302. Reusing the protective cover 10 as a substrate for the liquid crystal lens layer 302 can also reduce the thickness of the display device 100.

[0060] Specifically, the lens substrate 31 is disposed on the back side of the first edge portion 101 of the protective cover 10 , and the second electrode layer 34 is disposed on the surface of the lens substrate 31 close to the protective cover 10 . The lens substrate 31 can support the second electrode layer 34 .

[0061] In some embodiments, the first electrode layer 33 and the second electrode layer 34 respectively include a plurality of first sub-electrodes 331 and a plurality of second sub-electrodes 341, and a first sub-electrode 331 and a corresponding second sub-electrode 341 are correspondingly arranged to form a focus adjustment electrode pair 334, and the photosensitive layer 301 is arranged corresponding to the center of the first electrode layer 33 and the second electrode layer 34.

[0062] Specifically, if Figure 2 As shown, the first electrode layer 33 includes a plurality of first sub-electrodes 331 , the second electrode layer 34 includes a plurality of second sub-electrodes 341 , and a first sub-electrode 331 and a corresponding second sub-electrode 341 are correspondingly arranged to form a focus adjustment electrode pair 334 .

[0063] Further, if Figure 2 As shown, in a focus adjustment electrode pair 334 , the first sub-electrode 331 and the second sub-electrode 341 have the same width, and the orthographic projection of the first sub-electrode 331 on the protective cover 10 overlaps with the orthographic projection of the second sub-electrode 341 on the protective cover 10 .

[0064] Further, if Figure 2 and Figure 3 As shown, in the first electrode layer 33, the outermost first sub-electrode 331 points to the first sub-electrode 331 at the center of the first electrode layer 33, and its width gradually increases. Correspondingly, in the second electrode layer 34, the outermost second sub-electrode 341 points to the second sub-electrode 341 at the center of the second electrode layer 34, and its width gradually increases. This can enhance the light focusing effect of the liquid crystal lens layer 302.

[0065] It should be noted that the first electrode layer 33 and the second electrode layer 34 constitute a focus adjustment circuit, and the photosensitive layer 301 can be a photosensitive circuit or a MOS photosensitive circuit.

[0066] Further, if Figure 3 As shown, the first sub-electrode 331 and the second sub-electrode 341 are each at least one ring-shaped electrode. The first sub-electrode 331 is at least one ring-shaped electrode, and the second sub-electrode 341 is at least one ring-shaped electrode. A first sub-electrode 331 and a corresponding second sub-electrode 341 are correspondingly arranged to form a focus adjustment electrode pair 334. The focus adjustment electrode pair 334 can adjust the liquid crystal molecules between the first sub-electrode 331 and the second sub-electrode 341 to form a lens and the shape of the lens, thereby achieving focus adjustment of the photosensitive member 30.

[0067] Specifically, the photosensitive layer 301 is arranged corresponding to the center of the first electrode layer 33 and the second electrode layer 34, that is, the center of the orthographic projection of the photosensitive layer 301 on the protective cover 10 overlaps with the center of the orthographic projection of the first electrode layer 33 on the protective cover 10, or the center of the orthographic projection of the photosensitive layer 301 on the protective cover 10 overlaps with the center of the orthographic projection of the second electrode layer 34 on the protective cover 10, so that the optimal position of the focusing effect of the liquid crystal lens corresponds to the center of the photosensitive layer 301.

[0068] Specifically, the liquid crystal lens layer 302 is used to adjust the focal length of the photosensitive component 30. The external light 50 first passes through the lens layer 302 and then reaches the photosensitive layer 301. The lens layer 302 can converge the light or increase the light intensity reaching the photosensitive layer 301, which can improve the clarity, brightness and other qualities of the second image.

[0069] In some embodiments, the photosensitive layer 301 is disposed on a surface of the lens substrate 31 away from the protective cover 10 .

[0070] Specifically, the photosensitive layer 301 is arranged on the surface of the lens substrate 31 away from the protective cover 10. The lens substrate 31 can also be used to support the photosensitive layer 301, thereby reducing the number of substrates used, reducing the thickness of the display device 100, and simplifying the structure and manufacturing process of the display device 100.

[0071] In some embodiments, the photosensitive layer 301 includes at least one photosensitive element 3011 , which is a photodiode or a phototransistor.

[0072] Specifically, the photosensitive element 3011 can receive the external light 50 and convert the optical signal of the external light 50 into an electrical signal, thereby forming a second image. The photosensitive element 3011 can also be other structures or components that can convert the optical signal of the external light 50 into an electrical signal, for example, the photosensitive element 3011 can also be a MOS circuit.

[0073] In some embodiments, the display panel 20 includes a light-transmitting area 21 , which can display images and transmit external light 50 . The camera 40 is disposed corresponding to the light-transmitting area 21 .

[0074] Specifically, the light-transmitting area 21 can display images and transmit external light 50 , thereby realizing a true under-screen camera setting without destroying the integrity of the image displayed by the display device 100 .

[0075] In some embodiments, the display panel 20 includes a display panel body 23 and a backlight 24 disposed on the back side of the display panel body 23 . At least the backlight 24 includes an opening 241 , and the camera 40 is disposed corresponding to the opening 241 .

[0076] Specifically, when the display panel 20 is a liquid crystal display panel, the display panel 20 includes a display panel body 23 and a backlight 24 arranged on the back side of the display panel body 23. The display panel body 23 may include a color film substrate and an array substrate. At least the backlight 24 includes an opening 241 to prevent the backlight 24 from blocking external light 50.

[0077] Furthermore, the display panel 20 includes a display panel body 23 and a backlight 24 disposed on the back side of the display panel body 23 . The backlight 24 and the display panel body 23 both include an opening 241 , and the camera 40 is disposed corresponding to the opening 241 .

[0078] Example 2

[0079] See also Figure 6 , Figure 6 This is a schematic diagram of the process steps of the camera method for the display device provided in Example 2 of the present application.

[0080] This embodiment provides a camera method for the display device 100 in any one of the above embodiments. The display device 100 in any one of the above embodiments can be photographed using the camera method for the display device in this embodiment.

[0081] In some embodiments, the camera method of the display device includes steps: S100, S200, S300, S400 and S500.

[0082] S100: The camera is focused to a first focal length and captures a first image.

[0083] Specifically, the camera 40 captures a first image after adjusting the focus to a first focal length.

[0084] S200 , calculating a second focal length of the liquid crystal lens layer according to the first focal length.

[0085] Specifically, the second focal length of the liquid crystal lens layer 302 is calculated by the first focal length.

[0086] S300, the liquid crystal lens layer is focused to a second focal length;

[0087] Specifically, the liquid crystal lens layer 302 is focused to a second focal length;

[0088] S400 , the photosensitive member captures a second image.

[0089] Specifically, the photosensitive member 30 captures the second image.

[0090] S500: The first image and the second image are merged to form a captured image of the display device.

[0091] In some embodiments, the second focal length is equal to the first focal length minus the distance between the plane where the photosensitive layer 301 is located and the plane where the camera 40 is located.

[0092] Specifically, the plane where the photosensitive layer 301 is located and the plane where the camera 40 is located are both parallel to the plane where the display module 200 or the protective cover 10 is located.

[0093] Specifically, this embodiment has the same beneficial effects as the above embodiments, which will not be described again here.

[0094] It should be noted that the display device 100 may further include a processing chip, which receives the signal of the first image and the signal of the second image, and fuses the signal of the first image with the signal of the second image to improve the image capture quality of the display device.

[0095] The above is a detailed introduction to a display device and a camera method for a display device provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display device, characterized in that: include: A display module, comprising a display panel and a protective cover, wherein the display panel includes a first end in a first direction, the protective cover is disposed on a display side of the display panel, the width of the protective cover at least in the first direction is greater than the width of the display panel in the first direction, and the protective cover extends beyond the first end to form a first edge portion; a camera, disposed corresponding to the back side of the display module, and configured to form a first image at a first focal length; a photosensitive member disposed on the back side of the first edge portion, the photosensitive member being configured to form a second image at a second focal length, the photosensitive member comprising a photosensitive layer and a liquid crystal lens layer, the photosensitive layer being configured to convert an optical signal into an electrical signal; the liquid crystal lens layer being disposed between the photosensitive layer and the protective cover, the liquid crystal lens layer being configured to adjust the second focal length of the photosensitive member, the second focal length being equal to the first focal length minus the distance between the plane where the photosensitive member is located and the plane where the camera is located; The first image and the second image are fused to form a captured image of the display device.

2. The display device according to claim 1, wherein The liquid crystal lens layer includes a lens substrate, a first electrode layer, a second electrode layer, and a liquid crystal layer sandwiched between the first electrode layer and the second electrode layer, wherein the first electrode layer and the second electrode layer drive the liquid crystal molecules in the liquid crystal layer to rotate; The lens substrate is arranged on the back side of the first edge portion of the protection cover, the first electrode layer is arranged on the back surface of the first edge portion of the protection cover, and the second electrode layer is arranged on the surface of the lens substrate close to the protection cover.

3. The display device according to claim 2, wherein The first electrode layer and the second electrode layer respectively include a plurality of first sub-electrodes and a plurality of second sub-electrodes, and a first sub-electrode and a corresponding second sub-electrode are correspondingly arranged to form a focus adjustment electrode pair; The photosensitive layer is arranged corresponding to the center of the first electrode layer and the second electrode layer.

4. The display device according to claim 3, wherein The photosensitive layer is arranged on a surface of the lens substrate away from the protective cover.

5. The display device according to any one of claims 1 to 4, wherein The display panel includes a light-transmitting area, which can display images and transmit external light, and the camera is arranged corresponding to the back side of the light-transmitting area.

6. The display device according to any one of claims 1 to 4, wherein: The display panel includes a display panel body and a backlight arranged on the back side of the display panel body. At least the backlight includes an opening, and the camera is arranged corresponding to the opening.

7. The display device according to claim 1, wherein The photosensitive layer includes at least one photosensitive element, and the photosensitive element is a photodiode or a phototransistor.

8. A method for photographing a display device, characterized in that: The display device according to any one of claims 1 to 7 is used for recording, and the recording method of the display device comprises the following steps: S100, capturing the first image after adjusting the camera to a first focal length; S200, calculating a second focal length of the liquid crystal lens layer according to the first focal length; S300, focusing the liquid crystal lens layer to the second focal length; S400, photographing the second image with the photosensitive member; S500, the first image and the second image are merged to form a captured image of the display device; wherein the second focal length is equal to the first focal length minus the distance between the plane where the photosensitive member is located and the plane where the camera is located.

Images