Display device

Abstract

This application discloses a display device, comprising: a display panel including a first display area and a second display area, the first display area at least partially surrounding the second display area; a main backlight module, disposed corresponding to the first display area, for providing a backlight source for the first display area; and a reinforcing backlight structure including a secondary backlight module and an optical converter, the optical converter being disposed at least corresponding to the second display area and located on the light-emitting side of the secondary backlight module, the emitted light from the secondary backlight module passing through the optical converter and then directed towards the second display area. In this application, the display panel does not have openings, and the reinforcing backlight structure is disposed at the location corresponding to the second display area of ​​the display panel. The visible light from the secondary backlight module, after passing through the optical converter, provides a backlight source for the second display area. External infrared light, after passing through the second display area and the optical converter, is received by an infrared sensor, ensuring that the secondary backlight module and the infrared sensor do not mutually block light emission or reception.

Description

Technical Field

[0001] This application relates to the field of displays, and more specifically to a display device. Background Technology

[0002] LCD panels are widely used in mobile phones. In order to achieve full-screen display, punch-hole technology (in-plane hole technology) has been developed, with sensors such as cameras placed below the hole.

[0003] However, punch-hole display technology has the problem that the display panel cannot display images at the opening, affecting the overall image quality. Summary of the Invention

[0004] This application provides a display device to solve the problem that current punch-hole screens cannot display images at the punch-hole, thus failing to achieve a true full-screen display.

[0005] This application provides a display device, including:

[0006] The display panel includes a first display area and a second display area, wherein the first display area at least partially surrounds the second display area;

[0007] A main backlight module is provided corresponding to the first display area to provide a backlight for the first display area.

[0008] The backlight enhancement structure includes a secondary backlight module and an optical converter. The optical converter is disposed at least corresponding to the second display area and is located on the light-emitting side of the secondary backlight module. The emitted light from the secondary backlight module passes through the optical converter and is then directed toward the second display area.

[0009] Optionally, in some embodiments of this application, the optical converter is provided with a first reflective film, which is disposed at an angle relative to the display panel;

[0010] The display device further includes an infrared sensor, and the infrared sensor and the sub-backlight module are respectively located on opposite sides of the plane where the first reflective film is located;

[0011] The first reflective film is used to transmit one of infrared light and visible light, and to reflect the other.

[0012] Optionally, in some embodiments of this application, the optical conversion element includes a first light-transmitting surface corresponding to the sub-backlight module, a second light-transmitting surface corresponding to the second display area, and a third light-transmitting surface corresponding to the infrared sensor;

[0013] The infrared sensor is disposed in relation to the second display area, the secondary backlight module is disposed in relation to the first display area, the optical converter is disposed between the infrared sensor and the display panel, and the first reflective film transmits infrared light and reflects visible light.

[0014] Optionally, in some embodiments of this application, the optical conversion element includes a first light-transmitting surface corresponding to the sub-backlight module, a second light-transmitting surface corresponding to the second display area, and a third light-transmitting surface corresponding to the infrared sensor;

[0015] The secondary backlight module is disposed corresponding to the second display area, the infrared sensor is disposed corresponding to the first display area, the optical conversion element is disposed between the secondary backlight module and the display panel, and the first reflective film transmits visible light and reflects infrared light.

[0016] Optionally, in some embodiments of this application, the angle between the first reflective film and the display panel is 35 degrees to 55 degrees.

[0017] Optionally, in some embodiments of this application, the angle between the first reflective film and the display panel is 45 degrees.

[0018] Optionally, in some embodiments of this application, the optical conversion element includes a first sub-prism and a second sub-prism spliced ​​together, wherein the first light-transmitting surface and the second light-transmitting surface are different surfaces of the first sub-prism, and the third light-transmitting surface is one surface of the second sub-prism;

[0019] The first reflective film is disposed between the splicing surface of the first sub-prism and the splicing surface of the second sub-prism.

[0020] Optionally, in some embodiments of this application, the first sub-prism and the second sub-prism are symmetrically arranged with respect to the first reflective film.

[0021] Optionally, in some embodiments of this application, the first reflective film includes a first sub-reflective film and a second sub-reflective film, wherein the first sub-reflective film and the second sub-reflective film are respectively inclined relative to the display panel and intersect at the second light-transmitting surface;

[0022] The sub-backlight module includes a first sub-backlight module and a second sub-backlight module. The first sub-backlight module and the infrared sensor are located on opposite sides of the plane where the first sub-reflective film is located, and the second sub-backlight module and the infrared sensor are located on opposite sides of the plane where the second sub-reflective film is located.

[0023] The light emitted from the first sub-backlight module and the second sub-backlight module is reflected by the first sub-reflective film and the second sub-reflective film, respectively, and then directed toward the second display area.

[0024] Optionally, in some embodiments of this application, the angle between the first sub-reflective film and the second sub-reflective film and the display panel is 35 degrees to 55 degrees.

[0025] Optionally, in some embodiments of this application, the angle between the first sub-reflective film and the second sub-reflective film is 90 degrees, and the angle between the first sub-reflective film and the display panel is 45 degrees.

[0026] Optionally, in some embodiments of this application, the optical conversion element includes a first sub-prism, a second sub-prism spliced ​​with the first sub-prism, and a third sub-prism spliced ​​with the second sub-prism. The first sub-reflective film is disposed between the splicing surface of the first sub-prism and the splicing surface of the second sub-prism, and the second sub-reflective film is disposed between the splicing surface of the third sub-prism and the splicing surface of the second sub-prism.

[0027] The first light-transmitting surface includes a first sub-surface and a second sub-surface, the first sub-surface and the second sub-surface being one surface of the first sub-prism and one surface of the third sub-prism, respectively; the second light-transmitting surface includes a third sub-surface and a fourth sub-surface, the third sub-surface and the fourth sub-surface being another surface of the first sub-prism and another surface of the third sub-prism, respectively; the third light-transmitting surface is one surface of the second sub-prism.

[0028] Optionally, in some embodiments of this application, the second sub-prism is symmetrical about its central face, which is perpendicular to the display panel, and the first sub-prism and the third sub-prism are symmetrically arranged relative to the central face of the second sub-prism.

[0029] Optionally, in some embodiments of this application, the optical conversion element includes a first sub-prism disposed corresponding to the first display area and the second display area, and a second sub-prism disposed corresponding to the second display area. The first sub-prism and the second sub-prism are spliced ​​together, and the second sub-prism is located on the side of the first sub-prism away from the display panel. The first reflective film is disposed between the splicing surface of the first sub-prism and the splicing surface of the second sub-prism.

[0030] The optical converter is further provided with a second reflective film corresponding to the first display area and located on one surface of the first sub-prism. The second reflective film reflects visible light and is tilted relative to the display panel.

[0031] The second light-transmitting surface is located between the first reflective film and the second reflective film, and is one surface of the first sub-prism; the first light-transmitting surface is inclined relative to the display panel, and is located between the plane where the first reflective film is located and the plane where the second reflective film is located, and is another surface of the first sub-prism; the third light-transmitting surface is one surface of the second sub-prism;

[0032] The light from the secondary backlight module enters the second display area after being reflected sequentially by the second reflective film and the first reflective film.

[0033] Optionally, in some embodiments of this application, the optical conversion element includes a first sub-prism and a second sub-prism spliced ​​together, the second light-transmitting surface and the third light-transmitting surface are different surfaces of the first sub-prism, and the first light-transmitting surface is one surface of the second sub-prism;

[0034] The first reflective film is disposed between the splicing surface of the first sub-prism and the splicing surface of the second sub-prism.

[0035] Optionally, in some embodiments of this application, the first sub-prism and the second sub-prism are symmetrically arranged with respect to the first reflective film.

[0036] In this embodiment of the application, a display device is provided, comprising: a display panel including a first display area and a second display area, wherein the first display area at least partially surrounds the second display area; a main backlight module disposed corresponding to the first display area and used to provide a backlight source for the first display area; and a reinforcing backlight structure including a secondary backlight module and an optical converter, wherein the optical converter is disposed at least corresponding to the second display area and is disposed on the light-emitting side of the secondary backlight module, and the light emitted from the secondary backlight module is directed to the second display area after passing through the optical converter. In this application, the display panel does not have any openings. The second display area corresponds to the opening location in the prior art. The display device is provided with a reinforcing backlight structure at the location of the second display area of ​​the display panel. The visible light from the secondary backlight module provides a backlight source for the second display area after passing through an optical converter. The external infrared light is received by the infrared sensor after passing through the second display area and the optical converter, so that the secondary backlight module and the infrared sensor do not block each other from emitting or receiving light. This achieves both the function of displaying images in the second display area and the function of the infrared sensor working. The infrared sensor can be an infrared camera, etc. Therefore, the display device of this application solves the problem that the current hole-punch screen cannot display images at the opening, and realizes a true full-screen display. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a top view schematic diagram of a display device provided in an embodiment of this application;

[0039] Figure 2 This is a first partial cross-sectional schematic diagram of a first type of display device provided in an embodiment of this application;

[0040] Figure 3 This is a second partial cross-sectional schematic diagram of a first display device provided in an embodiment of this application;

[0041] Figure 4 This is a first partial cross-sectional schematic diagram of a second display device provided in an embodiment of this application;

[0042] Figure 5 This is a second partial cross-sectional schematic diagram of a second type of display device provided in an embodiment of this application;

[0043] Figure 6 This is a third partial cross-sectional schematic diagram of the second display device provided in the embodiments of this application;

[0044] Figure 7 This is a first partial cross-sectional schematic diagram of a third display device provided in an embodiment of this application;

[0045] Figure 8 This is a second partial cross-sectional schematic diagram of a third display device provided in an embodiment of this application;

[0046] Figure 9 This is a first partial cross-sectional schematic diagram of a fourth display device provided in an embodiment of this application;

[0047] Figure 10 This is a second partial cross-sectional schematic diagram of a fourth display device provided in an embodiment of this application;

[0048] Figure 11 This is a cross-sectional schematic diagram of a partial structure of a display device provided in an embodiment of this application. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0050] This application provides a display device, which includes: a display panel including a first display area and a second display area, wherein the first display area at least partially surrounds the second display area; a main backlight module disposed corresponding to the first display area and used to provide a backlight source for the first display area; and a reinforcing backlight structure including a secondary backlight module and an optical converter, wherein the optical converter is disposed at least corresponding to the second display area and is located on the light-emitting side of the secondary backlight module, and the emitted light from the secondary backlight module is directed to the second display area after passing through the optical converter.

[0051] The following describes several embodiments in detail. It should be noted that the order in which the embodiments are described is not intended to limit the preferred order of the embodiments.

[0052] Example 1

[0053] Please see Figures 1 to 10 ; Figure 1 This is a top view schematic diagram of a display device provided in an embodiment of this application; Figure 2 This is a first partial cross-sectional schematic diagram of a first type of display device provided in an embodiment of this application;

[0054] Figure 3 This is a second partial cross-sectional schematic diagram of a first display device provided in an embodiment of this application; Figure 4 This is a first partial cross-sectional schematic diagram of a second display device provided in an embodiment of this application; Figure 5 This is a second partial cross-sectional schematic diagram of a second type of display device provided in an embodiment of this application; Figure 6 This is a third partial cross-sectional schematic diagram of the second display device provided in the embodiments of this application; Figure 7 This is a first partial cross-sectional schematic diagram of a third display device provided in an embodiment of this application; Figure 8 This is a second partial cross-sectional schematic diagram of a third display device provided in an embodiment of this application; Figure 9This is a first partial cross-sectional schematic diagram of a fourth display device provided in an embodiment of this application; Figure 10 This is a second partial cross-sectional schematic diagram of the fourth display device provided in the embodiments of this application. Figures 2 to 10 for Figure 1 A cross-sectional diagram of the section marked CC (dash line). Figure 3 and Figure 2 The same, the difference is Figure 3 Different numbers were marked on the paper, and the paths of the light rays were also indicated. Figure 6 and Figure 5 and Figure 4 The same, the difference is Figure 5 Different numbers were marked on them. Figure 6 The diagram illustrates the path of the light rays. Figure 8 and Figure 7 The same, the difference is Figure 8 The diagram illustrates the path of the light rays. Figure 10 and Figure 9 The same, the difference is Figure 10 The diagram illustrates the path of the light rays.

[0055] This application provides a display device 1000, which includes a display panel 100, a main backlight module 200, and a supplementary backlight structure 300. The display panel 100 includes a first display area AA1 and a second display area AA2, with the first display area AA1 at least partially surrounding the second display area AA2. The main backlight module 200 is disposed corresponding to the first display area AA1 and is used to provide a backlight source for the first display area AA1. The supplementary backlight structure 300 includes a secondary backlight module 10 and an optical converter 20, with the optical converter 20 at least corresponding to the second display area AA2. The optical converter 20 is disposed on the light-emitting side of the secondary backlight module 10, and the emitted light from the secondary backlight module 10 is directed towards the second display area AA2 after passing through the optical converter 20.

[0056] Specifically, the display panel 100 can be any type of liquid crystal display panel, and there is no limitation herein. The display panel 100 may include structures such as an array substrate, a color filter substrate, and a polarizer.

[0057] Specifically, the display panel 100 may include a non-display area BB and a display area AA. The display area AA includes a first display area AA1 and a second display area AA2. The second display area AA2 is a part of the display device 1000 corresponding to the sensor. The sensor may be a sensor such as a camera or a fingerprint reader. That is, the second display area AA2 corresponds to the opening part in the prior art punch-hole screen.

[0058] Specifically, the main backlight module 200 is set corresponding to the first display area AA1 to provide a backlight for the first display area AA1. The display panel 100 or the first display area AA1 is set on the light-emitting side of the main backlight module 200, and the light-emitting direction of the main backlight module 200 is oriented toward or perpendicular to the display panel 100.

[0059] Specifically, the backlight enhancement structure 300 includes a secondary backlight module 10 and an optical converter 20. The optical converter 20 is disposed at least corresponding to the second display area AA2. The optical converter 20 is disposed on one side of the display panel 100. The optical converter 20 and the main backlight module 200 are disposed on the same side of the display panel 100. In the cross-sectional schematic diagram, the optical converter 20 is at least overlapped with the second display area AA2.

[0060] Specifically, the optical converter 20 is disposed on the light-emitting side of the secondary backlight module 10. The light emitted from the secondary backlight module 10 is directed towards the second display area AA2 after passing through the optical converter 20, and serves as the backlight source for the second display area AA2. The light emission direction of the secondary backlight module 10 is towards the optical converter 20, and the light from the secondary backlight module 10 enters the second display area AA2 after passing through the optical converter 20, causing the second display area AA2 to display an image.

[0061] Specifically, external light first passes through the second display area AA2, then through the optical converter 20, and then enters the infrared sensor 400. When the infrared sensor 400 is an infrared camera, it can perform functions such as taking pictures and recording videos.

[0062] Specifically, the optical converter 20 separates infrared light and visible light, ensuring that the secondary backlight module 10 does not block the light reception of the infrared sensor 400, and the infrared sensor 400 does not block the light emission of the secondary backlight module 10, thus achieving both the functions of displaying images in the second display area AA2 and the operation of the infrared sensor 400.

[0063] In this embodiment, the display panel 100 does not have an opening. The second display area AA2 corresponds to the opening location in the prior art. The display device 1000 is provided with a reinforcing backlight structure 300 corresponding to the second display area AA2 of the display panel 100. The optical converter 20 separates infrared light and visible light. The light from the secondary backlight module 10 provides a backlight source for the second display area AA2 after passing through the optical converter 20. The infrared light from the outside is received by the infrared sensor 400 after passing through the second display area AA2 and the optical converter 20, so that the secondary backlight module 10 and the infrared sensor 400 do not block each other's light emission or reception. Thus, the functions of displaying images in the second display area AA2 and the operation of the infrared sensor 400 are realized. The infrared sensor 400 can be an infrared camera. Therefore, the display device 1000 in this embodiment solves the problem that the current hole-punch screen cannot display images at the opening, and realizes a true full-screen display.

[0064] In some embodiments, the optical converter 20 is provided with a first reflective film 20R, which is inclined relative to the display panel 100; the display device 1000 also includes an infrared sensor 400, which and the sub-backlight module 10 are respectively located on opposite sides of the plane where the first reflective film 20R is located; the first reflective film 20R is used to transmit one of infrared light and visible light, and reflect the other.

[0065] Specifically, the optical converter 20 is provided with a first reflective film 20R. That is, the first reflective film 20R can be disposed inside the optical converter 20. When the optical converter 20 is spliced / assembled from two or more components, the first reflective film 20R is located on the surface inside the optical converter 20 of the spliced / assembled components. For example, the first reflective film 20R is disposed at the splicing point of two components.

[0066] It should be noted that in some other implementations, the first reflective film 20R may be disposed on the outer surface of the optical converter 20, which is not limited here.

[0067] Specifically, the first reflective film 20R is tilted relative to the display panel 100, meaning that the plane containing the first reflective film 20R is tilted relative to the display panel 100. For example... Figure 3 As shown, the angle between the first reflective film 20R and the display panel 100 is α. In the cross-sectional view, the angle between the extension line of the first reflective film 20R and the surface of the display panel 100 is α.

[0068] Specifically, the display device 1000 also includes an infrared sensor 400, which can receive or emit infrared light to operate. The sensor can be a sensor for a camera or a fingerprint reader, but is not limited to these.

[0069] Specifically, the infrared sensor 400 and the secondary backlight module 10 are located on opposite sides of the plane where the first reflective film 20R is located, that is, the infrared sensor 400 and the secondary backlight module 10 are located on different sides of the first reflective film 20R, or the infrared sensor 400 and the secondary backlight module 10 are located on different sides of the plane where the first reflective film 20R is located, and the infrared sensor 400 and the secondary backlight module 10 are located outside the optical conversion element 20.

[0070] Specifically, the first reflective film 20R is used to transmit either infrared light or visible light, and reflect the other. That is, the first reflective film 20R is used to transmit infrared light and reflect visible light, or the first reflective film 20R is used to transmit visible light and reflect infrared light. The performance settings of the first reflective film 20R will be described in detail later with different embodiments.

[0071] Specifically, by setting a first reflective film 20R, which transmits one of infrared light and visible light and reflects the other, the visible light emitted by the secondary backlight module 10 and the infrared light received by the infrared sensor 400 are separated and located at different positions. This allows the secondary backlight module 10 and the infrared sensor 400 to be placed at different positions, ensuring that the secondary backlight module 10 and the infrared sensor 400 do not block each other's light emission or reception. This achieves both the function of displaying images in the second display area AA2 and the function of the infrared sensor 400 working. The infrared sensor 400 can be an infrared camera. Therefore, the display device 1000 of this embodiment solves the problem that current punch-hole screens cannot display images at the punch-hole, achieving a true full-screen display.

[0072] In some embodiments, the surface of the optical converter 20 includes a light-transmitting surface 20T, which includes a first light-transmitting surface 20T1 corresponding to the sub-backlight module 10, a second light-transmitting surface 20T2 corresponding to the second display area AA2, and a third light-transmitting surface 20T3 corresponding to the infrared sensor 400.

[0073] Specifically, the surface of the optical converter 20 includes a light-transmitting surface 20T, which means that the light-transmitting surface 20T can transmit visible light or infrared light.

[0074] Specifically, the light-transmitting surface 20T includes a first light-transmitting surface 20T1 corresponding to the sub-backlight module 10, a second light-transmitting surface 20T2 corresponding to the second display area AA2, and a third light-transmitting surface 20T3 corresponding to the infrared sensor 400. The first light-transmitting surface 20T1 can transmit at least visible light, the second light-transmitting surface 20T2 can transmit both visible light and infrared light, and the third light-transmitting surface 20T3 can transmit at least infrared light.

[0075] Furthermore, in some implementations, the first light-transmitting surface 20T1, the second light-transmitting surface 20T2, and the third light-transmitting surface 20T3 can all transmit visible light and infrared light. The first light-transmitting surface 20T1, the second light-transmitting surface 20T2, and the third light-transmitting surface 20T3 do not undergo selective light transmission treatment. The first reflective film 20R allows the sub-backlight module 10 and the infrared sensor 400 to be located in different positions without any obstruction problem.

[0076] Specifically, the second display area AA2, the secondary backlight module 10, and the infrared sensor 400 correspond to or face different light-transmitting surfaces 20T, that is, the secondary backlight module 10 and the infrared sensor 400 are located in different positions, so there will be no occlusion or interference problem, and a true full screen can be achieved.

[0077] It should be noted that infrared light can come from the outside world. For example, the infrared sensor 400 uses infrared light from the outside world to take pictures in an infrared camera. Infrared light can also come from reflections from fingers. For example, the infrared sensor 400 uses infrared light reflected from fingers to perform fingerprint recognition in a fingerprint reader. The source of infrared light is not limited here.

[0078] Example 2

[0079] This embodiment is the same as or similar to the display device 1000 described in any one of the embodiments, except that it further defines the features of the display device 1000. Please refer to Figures 2 to 8 .

[0080] In some embodiments, the infrared sensor 400 is disposed corresponding to the second display area AA2, the sub-backlight module 10 is disposed corresponding to the first display area AA1, the optical converter 20 is disposed between the infrared sensor 400 and the display panel 100, and the first reflective film 20R transmits infrared light and reflects visible light.

[0081] Specifically, the optical conversion component 20 includes a first light-transmitting surface 20T1 corresponding to the sub-backlight module 10, a second light-transmitting surface 20T2 corresponding to the second display area AA2, and a third light-transmitting surface 20T3 corresponding to the infrared sensor 400.

[0082] Specifically, the infrared sensor 400 is set in relation to the second display area AA2, and the optical converter 20 is set between the infrared sensor 400 and the display panel 100. That is, the optical converter 20 is set between the second display area AA2 and the infrared sensor 400. In the cross-sectional schematic diagram, the second display area AA2, the optical converter 20 and the infrared sensor 400 are arranged in an overlapping manner.

[0083] Specifically, the secondary backlight module 10 is set to correspond to the first display area AA1. The secondary backlight module 10 provides a backlight source for the second display area AA2, but in terms of position, the secondary backlight module 10 corresponds to the first display area AA1. That is, the secondary backlight module 10 is set to one side of the first display area AA1. The secondary backlight module 10 provides a backlight source for the second display area AA2, but does not block the external light from passing through the second display area AA1 and the optical converter 20 into the infrared sensor 400.

[0084] Specifically, the first reflective film 20R transmits infrared light and reflects visible light. The first reflective film 20R reflects the visible light emitted by the sub-backlight module 10 to the second display area AA2, allowing the second display area to display an image. The first reflective film 20R also transmits infrared light, allowing external infrared light to reach the infrared sensor 400. This prevents interference between the sub-backlight module 10 and the infrared sensor 400 in either the emitted or received light, thus achieving both image display in the second display area AA2 and the operation of the infrared sensor 400. The infrared sensor 400 can be an infrared camera. Therefore, the display device 1000 of this embodiment solves the problem of current punch-hole screens not being able to display images at the punch-hole, achieving a true full-screen display.

[0085] Example 3

[0086] This embodiment is the same as or similar to the display device 1000 described in any of Embodiment 2, except that it provides a more detailed description of a specific embodiment of the display device 1000. Please refer to [link / reference]. Figure 2 and Figure 3 .

[0087] In some embodiments, the angle between the first reflective film 20R and the display panel is 35 degrees to 55 degrees.

[0088] Specifically, such as Figure 3 As shown in the cross-sectional view, the angle between the extension line of the first reflective film 20R and the surface of the display panel 100 is α. The angle α between the first reflective film 20R and the display panel is greater than or equal to 35 degrees and less than or equal to 55 degrees.

[0089] Specifically, an appropriate range of angle α between the first reflective film 20R and the display panel is selected so that the light from the sub-backlight module 10 can efficiently reach the second display area AA2.

[0090] In some embodiments, the angle between the first reflective film 20R and the display panel 100 is 45 degrees.

[0091] Specifically, the angle α between the first reflective film 20R and the display panel 100 is 45 degrees. At this time, the positively emitted light from the sub-backlight module 10 is parallel to the display panel. After being reflected by the first reflective film 20R, the positively emitted light from the sub-backlight module 10 enters the second display area AA2 perpendicular to the display panel 100. The light emitted by the sub-backlight module 10 also includes non-positively emitted light. After being reflected by the first reflective film 20R, the positively emitted light enters the second display area AA2 perpendicularly. Non-positively emitted light from all directions can be uniformly incident on the second display area AA2. The positively emitted light from the sub-backlight module 10 enters all parts of the second display area AA2 after being reflected by the first reflective film 20R. This makes the light incident on the second display area AA2 from all directions of the sub-backlight module 10 uniform and symmetrical, improving the brightness uniformity when the second display AA2 displays an image.

[0092] It should be noted that positively emitted light refers to light emitted perpendicular to the light-emitting surface of the sub-backlight module 10, while non-positively emitted light refers to light emitted not perpendicular to the light-emitting surface of the sub-backlight module 10.

[0093] In some embodiments, the optical conversion element 20 includes a first sub-prism 51 and a second sub-prism 52 spliced ​​together, a first light-transmitting surface 20T1 and a second light-transmitting surface 20T2 being different surfaces of the first sub-prism, and a third light-transmitting surface 20T3 being a surface of the second sub-prism 52; a first reflective film 20R is disposed between the splicing surface of the first sub-prism 51 and the splicing surface of the second sub-prism 52.

[0094] Specifically, the optical conversion element 20 adopts a prism group 50, which includes two interlocking sub-prisms. A first reflective film 20R is disposed on the splicing surface 70 of the two sub-prisms. The first light-transmitting surface 20T1 and the third light-transmitting surface 20T3 are the surfaces of the two sub-prisms, respectively, and the second light-transmitting surface 20T2 is the surface of one of the sub-prisms.

[0095] Specifically, the optical conversion element 20 employs a prism assembly 50, which includes two interconnected sub-prisms. Figure 2 The diagram illustrates that the prism assembly 50 includes two interconnected first sub-prisms 51 and second sub-prisms 52, which are located on opposite sides of the first reflective film 20R. The first sub-prisms 51 and 52 can be joined together by adhesive bonding, such as optical adhesive bonding (OCR or OCA), but are not limited to this method.

[0096] Specifically, the first reflective film 20R is disposed between the splicing surface of the first sub-prism 51 and the splicing surface of the second sub-prism 52. The first sub-prism 51 or the second sub-prism 52 is provided with the first reflective film 20R on the splicing surface. For example, the first reflective film 20R is a coating that transmits infrared light and reflects visible light.

[0097] Furthermore, the material of the first reflective film 20R may include titanium pentoxide (Ti3O5) and silicon oxide (SiO2), for example, the first reflective film 20R is a multilayer stacked structure of titanium pentoxide and silicon oxide.

[0098] Specifically, the first light-transmitting surface 20T1 and the second light-transmitting surface 20T2 are different surfaces of the first sub-prism, and the third light-transmitting surface 20T3 is a surface of the second sub-prism 52. The first light-transmitting surface 20T1 is the surface of the first sub-prism 51 near the sub-backlight module 10, the second light-transmitting surface 20T2 is the surface of the first sub-prism 51 near the second display area AA2, and the third light-transmitting surface 20T3 is the surface of the second sub-prism 52 near the infrared sensor 400.

[0099] Furthermore, the prism group 50, the sub-prism, the first sub-prism 51 and the second sub-prism 52 can all be made of optical glass, which is not limited here.

[0100] It should be noted that the first sub-prism 51 and the second sub-prism 52 are disposed on both sides of the first reflective film 20R, and the refractive indexes on both sides of the first reflective film 20R are the same, such as... Figure 3 As shown, this can prevent infrared light HL from being refracted or significantly refracted when passing through the splicing surface 70, thus avoiding crosstalk and confusion in the infrared light HL entering the infrared sensor 400, and improving the accuracy and sensitivity of the infrared sensor 400. Figure 3 The diagram also illustrates that the visible light KL emitted by the secondary backlight module 10 enters the second display area AA2 after being reflected by the first reflective film 20R.

[0101] In some embodiments, the first sub-prism 51 and the second sub-prism 52 are symmetrically arranged about the first reflective film 20R.

[0102] Specifically, the first sub-prism 51 and the second sub-prism 52 are symmetrically arranged about the first reflective film 20R. At this time, the angle between the first reflective film 20R and the display panel 100 is 45 degrees. The light emitted from the sub-backlight module 10 is reflected by the first reflective film 20R and then enters the second display area AA2 perpendicular to the display panel 100. Infrared light passing perpendicularly through the second display area AA2 can be perpendicularly incident on the infrared sensor 400, thereby improving the brightness uniformity of the second display AA2 when displaying images and the accuracy and sensitivity of the infrared sensor 400.

[0103] Example 4

[0104] This embodiment is the same as or similar to the display device 1000 described in any of Embodiment 2, except that it provides a more detailed description of a specific embodiment of the display device 1000. Please refer to [link / reference]. Figures 4 to 6 .

[0105] In some embodiments, the first reflective film 20R includes a first sub-reflective film 20R1 and a second sub-reflective film 20R2. The first sub-reflective film 20R1 and the second sub-reflective film 20R2 are respectively inclined relative to the display panel 100 and intersect at the second light-transmitting surface 20T2. The sub-backlight module 10 includes a first sub-backlight module 101 and a second sub-backlight module 102. The first sub-backlight module 101 and the infrared sensor 400 are respectively located on opposite sides of the plane where the first sub-reflective film 20R1 is located, and the second sub-backlight module 102 and the infrared sensor 400 are respectively located on opposite sides of the plane where the second sub-reflective film 20R2 is located. The emitted light from the first sub-backlight module 101 and the second sub-backlight module 102 is reflected by the first sub-reflective film 20R1 and the second sub-reflective film 20R2 and then directed toward the second display area AA2.

[0106] Specifically, the first reflective film 20R includes a first sub-reflective film 20R1 and a second sub-reflective film 20R2. The first sub-reflective film 20R1 and the second sub-reflective film 20R2 have the same performance, both of which can transmit infrared light and reflect visible light.

[0107] Specifically, the first sub-backlight module 101 and the infrared sensor 400 are located on opposite sides of the plane containing the first sub-reflective film 20R1, and the second sub-backlight module 102 and the infrared sensor 400 are located on opposite sides of the plane containing the second sub-reflective film 20R2. The first sub-reflective film 20R1 reflects the light from the first sub-backlight module 101 to the second display area AA2, and the second sub-reflective film 20R2 reflects the light from the second sub-backlight module 102 to the second display area AA2.

[0108] Specifically, in this embodiment, a first sub-reflective film 20R1 and a second sub-reflective film 20R2 are provided, as well as a first sub-backlight module 101 and a second sub-backlight module 102, which can further improve the brightness uniformity of the light incident on the second display area AA2, thereby further improving the brightness uniformity of the second display AA2 when displaying images.

[0109] In some embodiments, the first sub-reflective film 20R1 and the second sub-reflective film 20R2 are respectively angled with the display panel 100 at angles of 35 degrees to 55 degrees.

[0110] Specifically, such as Figure 5 As shown, the angle α1 between the first sub-reflective film 20R1 and the display panel 100 is 35 degrees to 55 degrees, and the angle α2 between the second sub-reflective film 20R2 and the display panel 100 is 35 degrees to 55 degrees.

[0111] Specifically, the angles between the first sub-reflective film 20R1 and the second sub-reflective film 20R2 and the display panel 100 are selected to be within a suitable range, so that the light from the first sub-backlight module 101 and the second sub-backlight module 102 can efficiently reach the second display area AA2.

[0112] In some embodiments, the angle between the first sub-reflective film 20R1 and the second sub-reflective film 20R2 is 90 degrees, and the angle between the first sub-reflective film 20R1 and the display panel 100 is 45 degrees.

[0113] Specifically, such as Figure 5 As shown, the angle θ between the first sub-reflective film 20R1 and the second sub-reflective film 20R2 is 90 degrees. The angle α1 between the first sub-reflective film 20R1 and the display panel 100 is 45 degrees, and the angle α2 between the second sub-reflective film 20R2 and the display panel 100 is 45 degrees. At this time, the light emitted directly from the first sub-backlight module 101 is reflected by the first sub-reflective film 20R1 and then enters the second display area AA2 perpendicular to the display panel 100. The light emitted directly from the second sub-backlight module 102 is reflected by the second sub-reflective film 20R2 and then enters the second display area AA2 perpendicular to the display panel 100. After being reflected by the sub-reflective film 20R2, the light is incident on the second display area AA2 in a direction perpendicular to the display panel 100, so that the light incident on the second display area AA2 from each direction of the first sub-backlight module 101 and the second sub-backlight module 102 is uniform and symmetrical. Furthermore, the light emitted from the first sub-backlight module 101 and the second sub-backlight module 102 is incident on all parts of the second display area AA2 after being reflected by the first reflective film 20R, which further improves the brightness uniformity of the second display area AA2 when displaying images.

[0114] In some embodiments, the optical conversion element 20 includes a first sub-prism 51, a second sub-prism 52 spliced ​​with the first sub-prism 51, and a third sub-prism 53 spliced ​​with the second sub-prism 52. A first sub-reflective film 20R1 is disposed between the splicing surface of the first sub-prism 51 and the splicing surface of the second sub-prism 52, and a second sub-reflective film 20R2 is disposed between the splicing surface of the third sub-prism 53 and the splicing surface of the second sub-prism 52. The first light-transmitting surface 20T1 includes a first sub-surface 20T11 and a second sub-surface 20T11. Surface 20T12, the first sub-surface 20T11 and the second sub-surface 20T12 are respectively a surface of the first sub-prism 51 and a surface of the third sub-prism 53; the second light-transmitting surface 20T2 includes a third sub-surface 20T21 and a fourth sub-surface 20T22, the third sub-surface 20T21 and the fourth sub-surface 20T22 are respectively another surface of the first sub-prism 51 and another surface of the third sub-prism 53; the third light-transmitting surface 20T3 is a surface of the second sub-prism 52.

[0115] Specifically, such as Figure 4As shown, the optical conversion component 20 includes a first sub-prism 51, a second sub-prism 52 spliced ​​with the first sub-prism 51, and a third sub-prism 53 spliced ​​with the second sub-prism 52. The first sub-prism 51 and the third sub-prism 53 are spliced ​​and disposed on both sides of the second sub-prism 52.

[0116] Specifically, the first sub-prism 51 and the second sub-prism 52 can be joined together by adhesive layer, and the third sub-prism 53 and the second sub-prism 52 can be joined together by adhesive layer. The joining method is the same as or similar to that in Embodiment 3, and will not be described again here.

[0117] Specifically, the first sub-reflective film 20R1 is disposed between the splicing surface of the first sub-prism 51 and the splicing surface of the second sub-prism 52, that is, the first sub-reflective film 20R1 is located on the surface of the first sub-prism 51 or the surface of the second sub-prism 52 at the splicing point. The second sub-reflective film 20R2 is disposed between the splicing surface of the third sub-prism 53 and the splicing surface of the second sub-prism 52, that is, the second sub-reflective film 20R2 is located on the surface of the third sub-prism 53 or the surface of the second sub-prism 52 at the splicing point.

[0118] Specifically, the materials or structures of the first sub-reflective film 20R1 and the second sub-reflective film 20R2 are the same as or similar to the first reflective film 20R in Example 3, and will not be repeated here.

[0119] Specifically, the first light-transmitting surface 20T1 includes a first sub-surface 20T11 and a second sub-surface 20T12, which are respectively a surface of the first sub-prism 51 and a surface of the third sub-prism 53. The first sub-surface 20T11 is the surface of the first sub-prism 51 near the first sub-backlight module 101, and the second sub-surface 20T12 is the surface of the third sub-prism 53 near the second sub-backlight module 102.

[0120] Specifically, the second light-transmitting surface 20T2 includes a third sub-surface 20T21 and a fourth sub-surface 20T22, which are the other surfaces of the first sub-prism 51 and the third sub-prism 53, respectively. The third sub-surface 20T21 is the surface of the first sub-prism 51 near the second display area AA2, and the fourth sub-surface 20T22 is the surface of the third sub-prism 53 near the second display area AA2.

[0121] Specifically, the third light-transmitting surface 20T3 is a surface of the second sub-prism 52. The third light-transmitting surface 20T3 is the surface of the second sub-prism 52 that is close to the infrared sensor 400.

[0122] Specifically, Figure 6The diagram illustrates the paths of visible light KL and infrared light HL. The first sub-reflective film 20R1 reflects the visible light KL from the first sub-backlight module 101 into the second display area AA2, and the second sub-reflective film 20R2 reflects the visible light KL from the second sub-backlight module 102 into the second display area AA2, making the light incident on the second display area AA2 uniform, and making the brightness of the second display area AA2 uniform when displaying images.

[0123] Furthermore, the first sub-backlight module 101 and the second sub-backlight module 102 are arranged opposite to each other, with the light-emitting surface of the first sub-backlight module 101 facing the second sub-backlight module 102 and the light-emitting surface of the second sub-backlight module 102 facing the first sub-backlight module 101. This makes the light incident on the second display area AA2 more uniform, resulting in more uniform brightness when the second display area AA2 displays an image, and also improves the brightness of the second display area AA2.

[0124] Specifically, the setting of the second sub-prism 52 avoids the infrared light HL from being refracted or significantly refracted after passing through the splicing surface or the first sub-reflective film 20R1 and the second sub-reflective film 20R2, thus preventing crosstalk and confusion of the infrared light entering the infrared sensor 400 and improving the accuracy and sensitivity of the infrared sensor 400.

[0125] In some embodiments, the second sub-prism 52 is symmetrical about its central surface 801, which is perpendicular to the display panel 100. The first sub-prism 51 and the third sub-prism 53 are symmetrically arranged with respect to the central surface 801 of the second sub-prism 52.

[0126] Specifically, the second sub-prism 52 is symmetrical about its center plane 801, which is perpendicular to the display panel 100. The first sub-prism 51 and the third sub-prism 53 are symmetrically arranged with respect to the center plane 801 of the second sub-prism 52, which makes the light incident on the second display area AA2 more uniform and improves the accuracy and sensitivity of the infrared sensor 400.

[0127] Specifically, the center plane 801 of the second sub-prism 52 is a plane containing the center line of the second sub-prism 52. The center plane 801 is perpendicular to the display panel 100, and the second sub-prism 52 has a face-symmetrical structure about its center plane 801.

[0128] Example 5

[0129] This embodiment is the same as or similar to the display device 1000 described in any of Embodiment 2, except that it provides a more detailed description of a specific embodiment of the display device 1000. Please refer to [link / reference]. Figure 7 and Figure 8 .

[0130] In some embodiments, the optical converter 20 includes a first sub-prism 51 corresponding to the first display area AA1 and the second display area AA2, and a second sub-prism 52 corresponding to the second display area AA2. The first sub-prism 51 and the second sub-prism 52 are spliced ​​together, with the second sub-prism 52 located on the side of the first sub-prism 51 away from the display panel 100. A first reflective film 20R is disposed between the splicing surface of the first sub-prism 51 and the splicing surface of the second sub-prism 52. The optical converter 20 also includes a second reflective film 201R corresponding to the first display area AA1 and located on one surface of the first sub-prism 51. The second reflective film 201R reflects visible light. The reflective film 201R is tilted relative to the display panel 100; the second light-transmitting surface 20T2 is located between the first reflective film 20R and the second reflective film 201R, and is one surface of the first sub-prism 51; the first light-transmitting surface 20T1 is tilted relative to the display panel 100, and is located between the plane of the first reflective film 20R and the plane of the second reflective film 201R, and is the other surface of the first sub-prism 51; the third light-transmitting surface 20T3 is one surface of the second sub-prism 52; the light from the sub-backlight module 10 enters the second display area AA2 after being reflected by the second reflective film 201R and the first reflective film 20R in sequence.

[0131] Specifically, the optical conversion element 20 is further provided with a second reflective film 201R corresponding to the first display area AA1 and located on one surface of the first sub-prism 51. Figure 7 In the cross-sectional view, the second reflective film 201R is overlapped with the first display area AA1.

[0132] Specifically, the second reflective film 201R reflects visible light. In this embodiment, the reflection or transmission of infrared light by the second reflective film 201R is not limited. The material of the second reflective film 201R may include metals with reflective properties such as aluminum (Al) and silver (Ag). The material of the second reflective film 201R may also be the same as the material of the first reflective film 20R in this embodiment. The material or structure of the first reflective film 20R is the same as or similar to that in Embodiment 3, and will not be described again.

[0133] Specifically, the second reflective film 201R is tilted relative to the display panel 100, meaning that the plane containing the second reflective film 201R is tilted relative to the display panel 100. In the cross-sectional view, the angle between the extension line of the second reflective film 201R and the surface of the display panel 100 is not a right angle.

[0134] Specifically, the first light-transmitting surface 20T1 is located between the plane of the first reflective film 20R and the plane of the second reflective film 201R. In the cross-sectional view, the first light-transmitting surface 20T1 is sandwiched between the plane of the first reflective film 20R and the plane of the second reflective film 201R, or in the cross-sectional view, the first light-transmitting surface 20T1 is sandwiched between the extension line of the first reflective film 20R and the extension line of the second reflective film 201R.

[0135] Specifically, the first light-transmitting surface 20T1 is inclined relative to the display panel 100, meaning that the plane containing the first light-transmitting surface 20T1 is inclined relative to the display panel 100. In the cross-sectional view, the angle between the extension line of the first light-transmitting surface 20T1 and the surface of the display panel 100 is not a right angle.

[0136] Specifically, such as Figure 8 As shown, the light (visible light KL) from the sub-backlight module 10 enters the second display area AA2 after being reflected by the second reflective film 201R and the first reflective film 20R in sequence. Figure 8 It also illustrates infrared light HL incident on infrared sensor 400.

[0137] Specifically, the first light-transmitting surface 20T1 is tilted relative to the display panel 100, and the secondary backlight module 10 is tilted relative to the display panel 100, which can reduce the thickness of the display device 1000.

[0138] Specifically, the second light-transmitting surface 20T2 is located between the first reflective film 20R and the second reflective film 201R, and is one surface of the first sub-prism 51; the first light-transmitting surface 20T1 is inclined relative to the display panel 100, and is located between the plane of the first reflective film 20R and the plane of the second reflective film 201R, and is another surface of the first sub-prism 51; the third light-transmitting surface 20T3 is one surface of the second sub-prism 52. The first light-transmitting surface 20T1 is one surface of the first sub-prism 51 near the sub-backlight module 10, the second light-transmitting surface 20T2 is one surface of the first sub-prism 51 near the second display area AA2, and the third light-transmitting surface 20T3 is one surface of the second sub-prism 52 near the infrared sensor 400.

[0139] Specifically, the first sub-prism 51 and the second sub-prism 52 are located on opposite sides of the first reflective film 20R. The first sub-prism 51 and the second sub-prism 52 can be joined together by adhesive layer. The joining method is the same as or similar to that in Embodiment 3, and will not be described again here.

[0140] Specifically, the function of the second sub-prism 52 is the same as or similar to that of Embodiment 3, and will not be repeated here.

[0141] Furthermore, in some embodiments, the forward emitted light from the sub-backlight module 10 is incident perpendicularly to the display panel 100 after passing through the prism group 50.

[0142] Specifically, regardless of how the second reflective film 201R and the first reflective film 20R are tilted relative to the display panel 100, as long as the positively emitted light from the sub-backlight module 10 is perpendicular to the display panel 100 after passing through the prism group 50, the non-positively emitted light from all directions can be uniformly incident on the second display area AA2. Furthermore, the positively emitted light from the sub-backlight module 10 is reflected by the first reflective film 20R and then incident on all parts of the second display area AA2, making the light incident on the second display area AA2 from all directions of the sub-backlight module 10 uniform and symmetrical, thereby improving the brightness uniformity of the second display area AA2 when displaying images.

[0143] Example 6

[0144] This embodiment shares similarities with the display device 1000 described in any one of Embodiment 3, except that the positions of the secondary backlight module 10 and the infrared sensor 400 are interchanged, and the first reflective film 20R transmits visible light and reflects infrared light. This embodiment is the same as or similar to the display device 1000 described in any one of Embodiment 1, except that a specific implementation of the display device 1000 is further described in detail. Please refer to [link / reference]. Figure 9 and Figure 10 .

[0145] In some embodiments, the sub-backlight module 10 is disposed corresponding to the second display area AA2, the infrared sensor 400 is disposed corresponding to the first display area AA1, the optical converter 20 is disposed between the sub-backlight module 10 and the display panel 100, and the first reflective film 20R transmits visible light and reflects infrared light.

[0146] Specifically, the optical conversion component 20 includes a first light-transmitting surface 20T1 corresponding to the sub-backlight module 10, a second light-transmitting surface 20T2 corresponding to the second display area AA2, and a third light-transmitting surface 20T3 corresponding to the infrared sensor 400.

[0147] Specifically, the secondary backlight module 10 is set corresponding to the second display area AA2, and the optical conversion element 20 is set between the secondary backlight module 10 and the display panel 100. That is, the optical conversion element 20 is set between the second display area AA2 and the secondary backlight module 10. In the cross-sectional schematic diagram, the second display area AA2, the optical conversion element 20 and the secondary backlight module 10 are arranged overlappingly.

[0148] Specifically, the infrared sensor 400 is positioned corresponding to the first display area AA1. The infrared sensor 400 receives infrared light that passes through the second display area AA2 and is reflected by the first reflective film 20R. However, the infrared sensor 400 is positioned to correspond to the first display area AA1, that is, the infrared sensor 400 is positioned on one side of the first display area AA1. The infrared sensor 400 receives infrared light that passes through the second display area AA2 and is reflected by the first reflective film 20R, but does not block the secondary backlight module 10 from providing a backlight source for the second display area AA2.

[0149] Specifically, the first reflective film 20R transmits visible light and reflects infrared light, separating the visible and infrared light. The visible light emitted by the secondary backlight module 10 is transmitted through the first reflective film 20R to the second display area AA2, enabling the second display area AA2 to display an image. The first reflective film 20R also reflects infrared light, allowing external infrared light to reach the infrared sensor 400. This prevents interference between the secondary backlight module 10 and the infrared sensor 400 in either the emitted or received light, thus achieving both image display in the second display area AA2 and the operation of the infrared sensor 400. The infrared sensor 400 can be an infrared camera. Therefore, the display device 1000 of this embodiment solves the problem of current punch-hole screens not being able to display images at the punch-hole, achieving a true full-screen display.

[0150] Specifically, in some embodiments, the angle between the first reflective film 20R and the display panel is 35 degrees to 55 degrees.

[0151] Specifically, such as Figure 10 As shown in the cross-sectional view, the angle between the extension line of the first reflective film 20R and the surface of the display panel 100 is α. The angle α between the first reflective film 20R and the display panel is greater than or equal to 35 degrees and less than or equal to 55 degrees.

[0152] Specifically, by selecting an appropriate range of the angle α between the first reflective film 20R and the display panel, the infrared light HL can effectively and completely reach the infrared sensor 400.

[0153] Specifically, in some embodiments, the angle between the first reflective film 20R and the display panel 100 is 45 degrees.

[0154] Specifically, the angle α between the first reflective film 20R and the display panel 100 is 45 degrees. At this time, the infrared light HL that passes perpendicularly through the second display area AA2 can be incident on the infrared sensor 400 in a direction parallel to the display panel 100, avoiding crosstalk and confusion of the infrared light entering the infrared sensor 400, and improving the accuracy and sensitivity of the infrared sensor 400.

[0155] In some embodiments, the optical conversion element 20 includes a first sub-prism 51 and a second sub-prism 52 spliced ​​together, a second light-transmitting surface 20T2 and a third light-transmitting surface 20T3 being different surfaces of the first sub-prism, and the first light-transmitting surface 20T2 being a surface of the second sub-prism 52; a first reflective film 20R is disposed between the splicing surface of the first sub-prism 51 and the splicing surface of the second sub-prism 52.

[0156] Specifically, the second light-transmitting surface 20T2 and the third light-transmitting surface 20T3 are different surfaces of the first sub-prism, and the first light-transmitting surface 20T2 is a surface of the second sub-prism 52. The first light-transmitting surface 20T1 is the surface of the first sub-prism 51 near the sub-backlight module 10, the second light-transmitting surface 20T2 is the surface of the second sub-prism 52 near the second display area AA2, and the third light-transmitting surface 20T3 is the surface of the second sub-prism 52 near the infrared sensor 400.

[0157] Specifically, the first sub-prism and the second sub-prism are spliced ​​on both sides of the first reflective film 20R. The refractive indexes on both sides of the first reflective film 20R are the same, which can prevent the visible light KL emitted by the sub-backlight module 10 from being refracted or significantly refracted when passing through the splicing surface 70. The visible light KL emitted by the sub-backlight module 10 will not be deflected or significantly deflected when passing through the splicing surface 70. The light emitted by the sub-backlight module 10 also includes non-normally emitted light. Non-normally emitted light from all directions can be uniformly incident on the second display area AA2. The normally emitted light from the sub-backlight module 10 is reflected by the first reflective film 20R and then incident on all parts of the second display area AA2. This makes the light incident on the second display area AA2 from all directions of the sub-backlight module 10 uniform and symmetrical, improving the brightness uniformity when the second display AA2 displays an image.

[0158] It should be noted that positively emitted light refers to light emitted perpendicular to the light-emitting surface of the sub-backlight module 10, while non-positively emitted light refers to light emitted not perpendicular to the light-emitting surface of the sub-backlight module 10.

[0159] Specifically, in some embodiments, the optical conversion element 20 adopts a prism group 50, which includes two sub-prisms spliced ​​together. A first reflective film 20R is disposed on the splicing surface 70 of the two sub-prisms. The first light-transmitting surface 20T1 and the third light-transmitting surface 20T3 are the surfaces of the two sub-prisms, respectively, and the second light-transmitting surface 20T2 is the surface of one of the sub-prisms.

[0160] Specifically, the optical conversion element 20 employs a prism assembly 50, which includes two interconnected sub-prisms. Figure 9The diagram illustrates that the prism assembly 50 includes two interconnected first sub-prisms 51 and second sub-prisms 52, which are located on opposite sides of the first reflective film 20R. The first sub-prisms 51 and 52 can be joined together by adhesive bonding, such as optical adhesive bonding (OCR or OCA).

[0161] Specifically, the first reflective film 20R is disposed between the splicing surface of the first sub-prism 51 and the splicing surface of the second sub-prism 52. The first sub-prism 51 or the second sub-prism 52 is provided with the first reflective film 20R on the splicing surface. For example, the first reflective film 20R is a coating that transmits visible light and reflects infrared light.

[0162] Specifically, further, the prism group 50, the sub-prism, the first sub-prism 51 and the second sub-prism 52 can all be optical glass, which is not limited here.

[0163] In some embodiments, the first sub-prism 51 and the second sub-prism 52 are symmetrically arranged about the first reflective film 20R.

[0164] Specifically, the first sub-prism 51 and the second sub-prism 52 are symmetrically arranged about the first reflective film 20R. At this time, the angle between the first reflective film 20R and the display panel 100 is 45 degrees. The light emitted from the sub-backlight module 10 passes through the first reflective film 20R and enters the second display area AA2 perpendicular to the display panel 100. Then, the infrared light that passes perpendicularly through the second display area AA2 can be reflected by the first reflective film 20R and enter the infrared sensor 400 perpendicularly. This improves the brightness uniformity of the second display AA2 when displaying images and the accuracy and sensitivity of the infrared sensor 400.

[0165] It should be noted that in the display device 1000 of any of the above embodiments, the light-transmitting surface 20T includes a first light-transmitting surface 20T1 corresponding to the sub-backlight module 10, a second light-transmitting surface 20T2 corresponding to the second display area AA2, and a third light-transmitting surface 20T3 corresponding to the infrared sensor 400. Preferably, the first light-transmitting surface 20T1 is parallel to the light-emitting surface of the sub-backlight module 10, the second light-transmitting surface 20T2 is parallel to the surface of the second display area AA2 or the display panel 100, and the third light-transmitting surface 20T3 is parallel to the receiving surface of the infrared sensor 400. This ensures that when visible light or infrared light is incident perpendicularly or passes perpendicularly through these light-transmitting surfaces 20T, the propagation direction remains unchanged. This helps to simultaneously improve the brightness uniformity when the second display area AA2 displays an image, as well as the accuracy and sensitivity of the infrared sensor 400.

[0166] It should be noted that in any of the above embodiments of the display device 1000, when the optical conversion element 20 is a prism group 50, the prism group 50 can be a spliced ​​optical glass or a glued prism group.

[0167] It should be noted that in the display device 1000 of any of the above embodiments, since the display panel 100 has no openings, the secondary backlight module 10 serves as the backlight source for the second display area AA2. The second display area AA2 displays images in the same way as the first display area AA1. The second display area AA2 can not only display images normally, but also avoids the problem of inconsistent brightness or color between the images displayed in the second display area AA2 and the images displayed in the first display area AA1. It also avoids the problem of interference between the infrared sensor 400 and the secondary backlight module 10.

[0168] It should be noted that, in the display device 1000 of any of the above embodiments, compared with the punch-hole screens in the prior art, the display panel 100 of the display device 1000 of this application does not have a hole, while the main backlight module 200 has a hole, such as... Figure 2 and Figure 11 As shown, Figure 11 This is a cross-sectional schematic diagram of a partial structure of a display device provided in an embodiment of this application. Figure 11 Also for Figure 1 The cross-section at the CC section of the dashed line, but Figure 11 The reinforcement backlight structure 300 is not shown in the diagram. The main backlight module 200 has an opening 200K, which corresponds to the second display area AA2.

[0169] It should be noted that, further, in some implementations, in the display device 1000 of any of the above embodiments, such as Figure 2 and Figure 11 As shown, the main backlight module 200 may include a backplate 201 (iron frame, plastic frame, aluminum frame, etc.) and a composite film layer 202 stacked sequentially. The composite film layer 202 may include reflective film, light guide plate, diffusion film, brightness enhancement film, and other film layers and structures stacked sequentially. The main backlight module 200 can be any backlight structure in the prior art, and is not limited here. The openings at the opening 200K locations in each film layer of the composite film layer 202 are the same or similar in size and shape. For example, the reflective film, light guide plate, diffusion film, brightness enhancement film, and other film layers and structures have the same or similar opening size and shape at the opening 200K locations; such as... Figure 2 and Figure 11As shown, the backplate 201 has a baffle 2011 at the outer edge of the backlight 200. The baffle 2011 blocks and protects the composite film layer 202. However, the backplate 201 does not have a baffle 2011 at the opening 200K, which prevents the baffle 2011 from blocking the light from the sub-backlight module 10 at the opening 200K. The openings of each film layer in the composite film layer 202 are the same size and similar in shape at the opening 200K. The absence of a baffle 2011 at the opening 200K prevents the formation of a transition line or boundary line between the first display area AA1 and the second display area AA2 when displaying images, ensuring that the first display area AA1 and the second display area AA2 display the same image.

[0170] It should be noted that in the display device 1000 of any of the above embodiments, the secondary backlight module 10 may adopt the same backlight type and backlight structure as the main backlight module 200, so that the backlight sources of the first display area AA1 main backlight module 200 and the second display area AA2 are the same or similar, so that the first display area AA1 and the second display area AA2 display the same image.

[0171] It should be noted that in the display device 1000 of any of the above embodiments, the main backlight module 200 and the reinforcing backlight structure 300 can be seamlessly spliced ​​together, which can avoid the generation of transition lines or dividing lines between the first display area AA1 and the second display area AA2, so that the first display area AA1 and the second display area AA2 display the same image.

[0172] It should be noted that, in any of the above embodiments of the display device 1000, the structure of any of the above embodiments of the display device 1000 can be selected for product configuration based on considerations such as the thickness requirements of the display device 1000, the space arrangement requirements of each component, and the opening size requirements of the main backlight module 200.

[0173] The above provides a detailed description of a display device provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display device, characterized by comprising: The display device comprises: a display panel comprising a first display area and a second display area, the first display area at least partially surrounding the second display area; a main backlight module corresponding to the first display area, configured to provide backlight for the first display area; a reinforcing backlight structure comprising a sub-backlight module and an optical conversion member, the optical conversion member being arranged corresponding to at least the second display area, the optical conversion member being arranged on the light exit side of the sub-backlight module, the light emitted by the sub-backlight module being incident on the second display area after passing through the optical conversion member, the optical conversion member being provided with a first reflective film, the first reflective film being arranged obliquely relative to the display panel; wherein the optical conversion member comprises a first sub-prism and a second sub-prism which are spliced together, and the first reflective film is arranged between the splicing surface of the first sub-prism and the splicing surface of the second sub-prism.

2. The display device of claim 1, wherein, The display device further comprises an infrared sensor, the infrared sensor and the sub-backlight module being respectively located on opposite sides of the plane on which the first reflective film is located; the first reflective film is configured to transmit one of infrared light and visible light and reflect the other one.

3. The display device of claim 2, wherein, The optical conversion member comprises a first light-transmitting surface corresponding to the sub-backlight module, a second light-transmitting surface corresponding to the second display area, and a third light-transmitting surface corresponding to the infrared sensor; The infrared sensor is arranged corresponding to the second display area, the sub-backlight module is arranged corresponding to the first display area, the optical conversion member is arranged between the infrared sensor and the display panel, and the first reflective film transmits infrared light and reflects visible light.

4. The display device of claim 2, wherein, The optical conversion member comprises a first light-transmitting surface corresponding to the sub-backlight module, a second light-transmitting surface corresponding to the second display area, and a third light-transmitting surface corresponding to the infrared sensor; The sub-backlight module is arranged corresponding to the second display area, the infrared sensor is arranged corresponding to the first display area, the optical conversion member is arranged between the sub-backlight module and the display panel, and the first reflective film transmits visible light and reflects infrared light.

5. A display device as claimed in claim 3 or 4, characterized in that The angle between the first reflective film and the display panel is 35 degrees to 55 degrees.

6. The display device of claim 5, wherein, The angle between the first reflective film and the display panel is 45 degrees.

7. The display device according to claim 3, wherein The first light-transmitting surface and the second light-transmitting surface are different surfaces of the first sub-prism, and the third light-transmitting surface is a surface of the second sub-prism.

8. The display device of claim 7, wherein, The first sub-prism and the second sub-prism are symmetrically arranged relative to the first reflective film.

9. The display device according to claim 3, wherein The first reflective film comprises a first sub-reflective film and a second sub-reflective film, the first sub-reflective film and the second sub-reflective film being obliquely arranged relative to the display panel and intersecting at the second light-transmitting surface; The sub-backlight module comprises a first sub-backlight module and a second sub-backlight module, the first sub-backlight module and the infrared sensor being respectively located on opposite sides of the plane on which the first sub-reflective film is located, and the second sub-backlight module and the infrared sensor being respectively located on opposite sides of the plane on which the second sub-reflective film is located; The light rays of the first and second sub-backlight modules are reflected by the first and second sub-reflection films respectively and then are projected to the second display area.

10. The display device of claim 9, wherein, The angles between the first and second sub-reflection films and the display panel are 35-55 degrees.

11. The display device of claim 10, wherein, The angle between the first and second sub-reflection films is 90 degrees, and the angle between the first sub-reflection film and the display panel is 45 degrees.

12. The display device of claim 9, wherein, The optical conversion member comprises a first sub-prism, a second sub-prism spliced with the first sub-prism, and a third sub-prism spliced with the second sub-prism, the first sub-reflection film is arranged between the splicing surface of the first sub-prism and the splicing surface of the second sub-prism, and the second sub-reflection film is arranged between the splicing surface of the third sub-prism and the splicing surface of the second sub-prism. The first light-transmitting surface comprises a first sub-surface and a second sub-surface, the first sub-surface and the second sub-surface are one surface of the first sub-prism and one surface of the third sub-prism respectively, the second light-transmitting surface comprises a third sub-surface and a fourth sub-surface, the third sub-surface and the fourth sub-surface are another surface of the first sub-prism and another surface of the third sub-prism respectively, and the third light-transmitting surface is one surface of the second sub-prism.

13. The display device of claim 12, wherein, The second sub-prism has a face symmetry structure about a central plane, the central plane is perpendicular to the display panel, and the first sub-prism and the third sub-prism are symmetrically arranged relative to the central plane of the second sub-prism.

14. The display device of claim 3, wherein The optical conversion member comprises a first sub-prism arranged corresponding to the first display area and the second display area, and a second sub-prism arranged corresponding to the second display area, the first sub-prism and the second sub-prism are spliced with each other, the second sub-prism is located on a side of the first sub-prism away from the display panel, and the first reflection film is arranged between the splicing surface of the first sub-prism and the splicing surface of the second sub-prism. The optical conversion member further comprises a second reflection film arranged corresponding to the first display area and located on one surface of the first sub-prism, the second reflection film reflects visible light, and the second reflection film is arranged obliquely relative to the display panel. The second light-transmitting surface is located between the first reflection film and the second reflection film and is one surface of the first sub-prism, the first light-transmitting surface is oblique relative to the display panel, the first light-transmitting surface is located between the plane where the first reflection film is located and the plane where the second reflection film is located, and the first light-transmitting surface is another surface of the first sub-prism, and the third light-transmitting surface is one surface of the second sub-prism. The light rays of the sub-backlight module enter the second display area by being reflected by the second reflection film and the first reflection film in sequence.

15. The display device of claim 4, wherein, The optical conversion member comprises a first sub-prism and a second sub-prism spliced with each other, the second light-transmitting surface and the third light-transmitting surface are different surfaces of the first sub-prism, and the first light-transmitting surface is one surface of the second sub-prism. The first reflection film is arranged between the splicing surface of the first sub-prism and the splicing surface of the second sub-prism.

16. The display device of claim 15, wherein, The first sub-prism and the second sub-prism are symmetrically arranged with respect to the first reflecting film. The first sub-prism and the second sub-prism are symmetrically arranged with respect to the first reflecting film.

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