Display device

Abstract

The application relates to a display device, which comprises a lamp plate, a light-emitting layer arranged on the lamp plate, the light-emitting layer comprising a plurality of array-arranged light-emitting units, a supporting part arranged on one side of the lamp plate, a diffusion plate arranged on the supporting part, at least one brightening area, the orthographic projection of the brightening area on the lamp plate being located between two light-emitting units, and at least one non-brightening area, the non-brightening area being arranged alternately with the brightening area and not overlapping with each other, wherein the brightening area is arranged on one side of the diffusion plate facing the light-emitting layer or is located in the diffusion plate. The application can improve the brightness of the dark area at the overlapping position of different light-emitting units, reduce the brightness difference of the dark area and the bright area corresponding to the light-emitting unit, and further solve the problem of horizontal or vertical dark lines of the display device, which is beneficial to the reduction of the thickness of the display device and the reduction of the cost.

Description

Technical Field

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

[0002] In related technologies, for Mini LED display devices, reducing the thickness requires lowering the optical density (OD) value or reducing the number of LEDs. However, reducing the OD or the number of LEDs further restricts the light path of the LEDs, making the Mini LED display device prone to displaying crisscrossing dark lines when light mixing is insufficient. This reduces the display quality of the panel and results in a poor user experience. Therefore, solving the dark line problem in Mini LED display devices is particularly important. Summary of the Invention

[0003] In view of this, this application proposes a display device that can improve the brightness of the dark area at the intersection of different light-emitting units, reduce the brightness difference between the dark and bright areas corresponding to the light-emitting units, thereby solving the problem of horizontal or vertical dark lines in the display device, which is beneficial to reducing the thickness of the display device and reducing the cost.

[0004] According to one aspect of this application, a display device is provided, comprising: a lamp panel; a light-emitting layer disposed on the lamp panel, the light-emitting layer including a plurality of light-emitting units arranged in an array; a support portion disposed on one side of the lamp panel; a diffuser plate disposed on the support portion; at least one highlighting area, the orthographic projection of the highlighting area on the lamp panel being located between two of the light-emitting units; at least one non-highlighting area, the non-highlighting area being staggered with the highlighting area and not overlapping with each other; wherein the highlighting area is disposed on the side of the diffuser plate facing the light-emitting layer or located within the diffuser plate.

[0005] By setting at least one brightening area and at least one non-brightening area on one side of the diffuser plate, with the brightening area corresponding to the two light-emitting units and the non-brightening area corresponding to the light-emitting units, and the brightening area located on the side of the diffuser plate facing the light-emitting layer or inside the diffuser plate, the non-brightening area and the brightening area are staggered and do not overlap. According to various aspects of this application, the brightness of the dark area at the overlap of different light-emitting units can be improved, and the brightness difference between the dark area and the bright area corresponding to the light-emitting unit can be reduced, thereby solving the problem of horizontal or vertical dark lines in the display device, which is beneficial to the reduction of the thickness of the display device and the reduction of cost. Attached Figure Description

[0006] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0007] Figure 1A schematic diagram of the structure of a Mini LED display device related to this technology is shown.

[0008] Figure 2 A schematic diagram of the light emission path of the related technology is shown.

[0009] Figure 3 A cross-sectional schematic diagram of a first display device according to an embodiment of this application is shown.

[0010] Figure 4 A top view schematic diagram of a first display device according to an embodiment of this application is shown.

[0011] Figure 5 A cross-sectional schematic diagram of a second display device according to an embodiment of this application is shown.

[0012] Figure 6 A cross-sectional schematic diagram of a third display device according to an embodiment of this application is shown. Detailed Implementation

[0013] 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 them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0014] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0015] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0016] The following disclosure provides many different implementations or examples for carrying out different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials. In some instances, methods, means, elements, and circuits well known to those skilled in the art are not described in detail in order to highlight the main points of this application.

[0017] Figure 1 A schematic diagram of a Mini LED display device related to this technology is shown. (See also...) Figure 1 The MiniLED display device of the related technology includes a back panel 11, a lamp panel 12, a light-emitting layer, a diffuser 14, a quantum dot (QD) film 15, a brightness enhancement film (BEF) 16, a composite film 17, a driving layer 18, and a color filter layer 19.

[0018] The back panel 11 can be semi-I-shaped, divided into three parts: top, side, and bottom. The top and bottom of the back panel 11 are parallel, and the side parts of the back panel 11 are perpendicular to the top and bottom of the back panel 11, respectively. The lamp panel 12 is disposed on the bottom of the back panel 11, and the light-emitting layer is disposed on the lamp panel 12.

[0019] The light-emitting layer may include a light-emitting array and a reflective sheet 132. The light-emitting array includes multiple light-emitting units 131 arranged in an array, with the multiple light-emitting units 131 and the reflective sheet 132 arranged alternately. The light-emitting unit 131 may be an LED. A semi-elliptical adhesive dot 135 may also be provided on the outer periphery of the light-emitting unit 131. A cavity is provided between the lamp plate 12 and the side of the back plate 11, and the reflective sheet 121 and the supporting adhesive frame 122 are located in the cavity. The diffuser plate 14 is located on the reflective sheet 121 and the supporting adhesive frame 122. The reflective sheet 121 differs from the reflective sheet 132 in that the reflective sheet 121 is located on one side of the light-emitting unit.

[0020] exist Figure 1 In this structure, the brightness enhancement film 16 is a dual brightness enhancement film (DBEF), and the composite film 17 is a prism-on-prism (POP) film, which is a film layer formed by combining two prisms. The driving layer 18 is a thin film transistor (TFT) layer. A protective layer (over coat, OC) 180 is also provided at a portion of the interface between the driving layer 18 and the color filter layer 19.

[0021] See Figure 1 The area directly above the light-emitting unit 131 is the bright area 133, and the center position between two adjacent light-emitting units 131 corresponds to the dark area 134. Since the brightness of the dark area 134 is lower than that of the bright area 133, a cross-shaped dark pattern is formed.

[0022] Figure 2 A schematic diagram illustrating the light emission path of the related technology is shown. For example... Figure 2 As shown, the light emitted by the light-emitting unit 131 propagates upward through the diffuser plate 14, the quantum dot film 15, the brightness enhancement film 16, and the composite film 17 in sequence. For the light located in the dark area 134, the light path of the light-emitting unit 131 is relatively dispersed.

[0023] Combination Figure 1 and Figure 2 As shown, the applicant discovered that the root cause of the dark pattern problem in Mini LED display devices lies in the limited light-emitting angle of the LEDs. This results in the area directly above the LED having the highest brightness, while the overlapping areas between different LEDs have lower brightness. Consequently, the overall light-emitting area contains bright and dark areas, which visually appear as dark patterns. Therefore, this application primarily addresses this issue by focusing light concentration on the dark areas.

[0024] Specifically, this application provides a display device, which includes a lamp panel; a light-emitting layer disposed on the lamp panel, the light-emitting layer including a plurality of light-emitting units arranged in an array; a support portion disposed on one side of the lamp panel; a diffuser plate disposed on the support portion; at least one brightening area, the orthographic projection of the brightening area on the lamp panel being located between two of the light-emitting units; and at least one non-brightening area, the non-brightening area being staggered with the brightening area and not overlapping with each other; wherein the brightening area is disposed on the side of the diffuser plate facing the light-emitting layer or located within the diffuser plate.

[0025] By setting at least one brightening area and at least one non-brightening area on one side of the diffuser plate, with the brightening area corresponding to the two light-emitting units and the non-brightening area corresponding to the light-emitting units, and the brightening area located on the side of the diffuser plate facing the light-emitting layer or inside the diffuser plate, so that the non-brightening area and the brightening area are staggered and do not overlap, this application can improve the brightness of the dark area at the overlap of different light-emitting units, reduce the brightness difference between the dark area and the bright area corresponding to the light-emitting unit, and thus solve the problem of horizontal or vertical dark lines in the display device, which is beneficial to the reduction of the thickness of the display device and the reduction of cost.

[0026] It should be noted that this application mainly focuses on improving the sides of the diffuser plate. The display device of this application can be a Mini LED display device, and the structure of other parts of the Mini LED display device can be referenced. Figure 1 The structure is set up.

[0027] Figure 3 This is a cross-sectional schematic diagram showing a first type of display device according to an embodiment of this application. (See attached diagram.) Figure 3 As shown, the display device in this application embodiment may include a lamp panel 12, a light-emitting layer, a support portion, a diffuser plate 14, at least one brightening area 32, and at least one non-brightening area 31.

[0028] In one embodiment, the display device of this application may include a back plate 11. The back plate 11 may be semi-I-shaped, divided into three parts: a top, a side, and a bottom. The top and bottom of the back plate 11 are arranged parallel to each other, and the side of the back plate 11 is perpendicular to the top and bottom of the back plate 11, respectively. The side of the back plate is located on one side of the support portion. A lamp plate 12 is disposed on the bottom of the back plate 11, and a light-emitting layer is disposed on the lamp plate 12.

[0029] In one embodiment, the light-emitting layer of this application may include a light-emitting array and a reflective sheet 132. The light-emitting array includes a plurality of light-emitting units 131 arranged in an array, with the plurality of light-emitting units 131 and the reflective sheet 132 being staggered. The light-emitting unit 131 may be an LED. The reflective sheet 132 may be a solid structure, and a plurality of openings may be pre-formed on the reflective sheet 132, with the plurality of light-emitting units 131 respectively fitted into corresponding openings of the reflective sheet 132. The reflective sheet 132 is used to reflect the light emitted by the light-emitting units.

[0030] In one embodiment, a semi-elliptical adhesive 135 may be provided on the outer periphery of the light-emitting unit 131, and the adhesive 135 may be filled between the light-emitting unit 131 and the edge of the opening of the reflective sheet 132.

[0031] In one embodiment, a support portion is disposed on one side of the lamp panel. Specifically, the support portion of this application may include a reflective sheet 121 and a supporting frame 122, which are connected and both are arranged parallel to the side of the back plate 11. The reflective sheet 121 is located on the side of the supporting frame 122 closer to the light-emitting unit 131.

[0032] In one embodiment, a cavity is provided between the lamp plate 12 and the side of the back plate 11, the reflector 121 and the supporting frame 122 are located in the cavity, and the diffuser plate 14 is located on the reflector 121 and the supporting frame 122. The end of the diffuser plate 14 near the side of the back plate 11 is flush with the outer edge of the supporting frame 122 near the side of the back plate 11.

[0033] In one embodiment, the display device of this application further includes a quantum dot film 15, a second brightness enhancement film 16, and a composite film 17 stacked sequentially. The quantum dot film 15 may be disposed on the diffuser plate 14. The extension lengths of the quantum dot film 15, the second brightness enhancement film 16, and the composite film 17 may be equal and all less than the extension length of the diffuser plate 14. The ends of the quantum dot film 15, the second brightness enhancement film 16, and the composite film 17 away from the back plate 11 may be aligned with the ends of the diffuser plate 14 away from the back plate 11. The second brightness enhancement film 16 is a reflective polarizing brightness enhancement film, and the composite film 17 is a prism on a prism sheet, that is, a film layer formed by combining two prisms together.

[0034] In one embodiment, the display device of this application further includes a driving layer 18 and a color filter layer 19 stacked sequentially. The driving layer 18 is disposed on the top of the back plate 11, and the color filter layer 19 is disposed on the driving layer 18. The driving layer 18 is a thin-film transistor layer. A protective layer 180 is also disposed at a portion of the junction between the driving layer 18 and the color filter layer 19. It is understood that the various film layers above the diffuser plate 14 can be configured as needed, and this application is not limited in this regard.

[0035] Please see Figure 3The brightening area 32 is projected onto the lamp panel 12 between the two light-emitting units 131. The brightening area 32 is located on the side of the diffuser plate 14 facing the light-emitting layer.

[0036] like Figure 3 As shown, the display device further includes a first brightness enhancement film 30. The first brightness enhancement film 30 is disposed on the side of the diffuser plate 14 facing the light-emitting layer. The first brightness enhancement film 30, the brightening area 32, and the diffuser plate 14 are stacked sequentially and can be integrated.

[0037] In one embodiment, the brightening area 32 includes at least one prism 320 located on the first brightness enhancement film 30. By providing at least one prism in the brightening area 32, the light in the corresponding dark area can be more concentrated, producing a light-focusing effect, thereby increasing the display brightness of the corresponding dark area. This makes the brightness of the brightening area 32 and the non-brightening area 31 more consistent, thus solving the problem of horizontal or vertical dark lines in the display device.

[0038] In one embodiment, the width of the prism 320 gradually decreases along the light emission direction of the light-emitting unit 131. The width of the prism 320 can be the dimension of the prism 320 extending along the direction of the diffuser plate 14. Optionally, such as... Figure 3 As shown, the diffuser plate 14 extends laterally, therefore the width of the prism 320 can be the dimension of the prism 320 itself measured laterally. The bottom surface of the prism 320 is located on the first brightness enhancement film 30, and the top surface of the prism 320 is connected to the diffuser plate 14. Preferably, the prism 320 is a triangular prism.

[0039] See Figure 3 The non-brightening area 31 is projected onto the lamp panel 12 and surrounds the light-emitting unit 131 corresponding to the non-brightening area 31. Multiple non-brightening areas 31 and multiple brightening areas 32 can be provided, with the multiple non-brightening areas 31 and multiple brightening areas 32 arranged alternately and without overlap.

[0040] In one embodiment, the first brightening film 30 is a full-surface structure, and the first brightening film 30 corresponding to the non-brightening area is smoothly disposed without a light-focusing effect.

[0041] By adding a first brightness enhancement film, support can be provided for the brightening area 32. At the same time, the first brightness enhancement film and the second brightness enhancement film form a dual brightness enhancement function, thereby enabling the non-brightening area to further improve its brightness. Moreover, the first brightness enhancement film is set in the cavity between the light-emitting layer and the diffuser plate, which will not further increase the overall thickness of the display device.

[0042] Figure 4 This is a top view schematic diagram illustrating a first type of display device according to an embodiment of this application. (See attached diagram.) Figure 4 As shown, the light-emitting unit 131 can be, for example, rectangular in shape. The light-emitting unit 131 has a boundary formed by two circles. The inner circle represents the coverage area of ​​the adhesive 135, and the outer circle represents the edge of the opening on the reflective sheet 132.

[0043] See Figure 4 In this application, the center point of the dark area can be the center point of a rectangle formed by four adjacent light-emitting units 131, and the dark area is circular when viewed from a top view. The diameter of this circle is related to the emission angle of the light-emitting unit. It can be understood that the light emitted by the light-emitting unit 131 can be funnel-shaped, emitting light in all directions, and this application does not limit the specific size of the dark area.

[0044] The center point of the bright area in this application can be the geometric center of the light-emitting unit 131, and it is also circular when viewed from the top view. Similar to the dark area, the size of the bright area is also related to the emission angle of the light-emitting unit, and this application does not limit the specific size of the bright area.

[0045] It should be noted that the highlighted areas in this application are set to correspond to the dark areas, and the non-highlighted areas are set to correspond to the bright areas. In practical applications, the multiple prisms in the highlighted areas are arranged in a grid pattern. The area of ​​the highlighted area along the top-view direction is equal to the area of ​​the corresponding dark area, but they do not have to be strictly corresponding; however, the difference in area must be controlled within a certain range. Similarly, the area of ​​the non-highlighted area along the top-view direction is equal to the area of ​​the corresponding bright area, but they do not have to be strictly corresponding; however, the difference in area must also be controlled within a certain range.

[0046] In one embodiment, the geometric center of the brightening area coincides with the geometric centers of the four adjacent light-emitting units surrounding the brightening area. When there are multiple prisms in the brightening area, the prisms are arranged in a grid pattern. This grid arrangement of prisms allows for more precise control over the brightening effect of the brightening area.

[0047] In one embodiment, the reflective sheet 132 is provided with a plurality of openings, which are fitted onto the corresponding light-emitting unit 131, wherein the shortest distance between two adjacent openings is less than the distance between the geometric centers of two adjacent light-emitting units arranged along the shortest distance.

[0048] See Figure 4 In the horizontal direction, the shortest distance between two adjacent openings is B, and the distance between the joint centers of two adjacent light-emitting units set along this shortest distance is A, where B is less than A; in the vertical direction, the shortest distance between two adjacent openings is C, and the distance between the joint centers of two adjacent light-emitting units set along this shortest distance is D, where C is less than D.

[0049] When the distance between the light-emitting units on the lamp panel changes, the distance between the openings on the reflector 132 also changes accordingly, and the size of the grid of the multiple prisms in the brightening area also changes accordingly. By designing the shortest distance between two adjacent openings to be less than the distance between the geometric centers of two adjacent light-emitting units set along that shortest distance, a certain margin can be reserved in advance for the design of the openings on the reflector. In this way, when the distance between the light-emitting units on the lamp panel changes, it is not necessary to frequently adjust the size of the openings and the grid of the multiple prisms.

[0050] Figure 5 A cross-sectional schematic diagram of a second display device according to an embodiment of this application is shown.

[0051] In one embodiment, such as Figure 5 As shown, the first brightness enhancement film 30 has a mesh structure. The first brightness enhancement film 30 has multiple openings, which divide the first brightness enhancement film into multiple mesh-like first sub-brightness enhancement films. The multiple openings and the multiple first sub-brightness enhancement films are arranged alternately. Non-brightness enhancement areas 51 are located on the openings of the first brightness enhancement film 30, and brightness enhancement areas 52 are located on the corresponding first sub-brightness enhancement films. By making the first brightness enhancement film a windowed structure, light at the openings is unobstructed, thereby further enhancing the light-gathering ability of the brightness enhancement areas and increasing the corresponding display brightness of the brightness enhancement areas.

[0052] Figure 6 A cross-sectional schematic diagram of a third display device according to an embodiment of this application is shown.

[0053] In one embodiment, such as Figure 6 As shown, the brightening area 62 is located within the diffuser plate 14. The brightening area 62 includes a first hollow structure. The width of the first hollow structure gradually decreases along the light emission direction of the light-emitting unit, so that the light in the corresponding dark area is more concentrated than the light in the corresponding bright area.

[0054] In one embodiment, the non-brightening area 61 is also located within the diffuser plate 14, wherein the non-brightening area 61 includes a second hollow structure, the width of which gradually decreases along the light emission direction of the light-emitting unit.

[0055] In one embodiment, the first hollow structure is a hexagonal pyramid-like structure, also known as a stepped hexagonal pyramid or pagoda-shaped structure. See also Figure 6 The lower part of the first hollow structure in the highlighting area 62, when viewed in cross-section, resembles a trapezoidal shape, while the lower part of the first hollow structure in the highlighting area 62, when viewed in cross-section, resembles a triangle, which can be interpreted as a step being set at the waistline of the hexagonal pyramid. By setting the first hollow structure as a stepped hexagonal pyramid, the light-gathering effects of the upper and lower parts of the first hollow structure can be differentiated, thereby enhancing the light-gathering effect of the highlighting area.

[0056] In one embodiment, such as Figure 6 As shown, the second hollow structure is a triangular pyramid. Setting the second hollow structure as a micro-structured triangular pyramid helps to further disperse the light corresponding to the bright area, thus diffusing the light effect of the bright area. Furthermore, both the second and first hollow structures contain pyramidal structures, which can further reduce the brightness difference between the highlighted and non-highlighted areas while diffusing the light effect of the bright area.

[0057] Furthermore, this application also provides a display device, which includes the aforementioned display device. It is understood that the display device may be a terminal device such as a computer, tablet, or battery, and this application does not limit other parts of the display device.

[0058] In summary, this application provides at least one brightening area and at least one non-brightening area on one side of the diffuser plate. The brightening area is correspondingly positioned with the two light-emitting units, and the non-brightening area is correspondingly positioned with the light-emitting units. The brightening area is located on the side of the diffuser plate facing the light-emitting layer or inside the diffuser plate. This arrangement of the non-brightening area and the brightening area is staggered and does not overlap with each other. Compared with the optical architecture of related technologies that adopts a design with the same surface, this approach can improve the brightness of the dark area at the overlap of different light-emitting units and reduce the brightness difference between the dark and bright areas corresponding to the light-emitting units. This solves the problem of horizontal or vertical dark lines in the display device. In addition, the number of LEDs can be further reduced based on this structure, thereby reducing costs. At the same time, the cavity optical density value (OD value) is reduced, which is beneficial for reducing the thickness of the display device.

[0059] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0060] The display device provided in the embodiments of this application has been described in detail above. 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 technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display device, characterized in that, include: Light panel; A light-emitting layer is disposed on the lamp panel, and the light-emitting layer includes multiple light-emitting units arranged in an array; A reflector sheet is disposed on the lamp plate, and the reflector sheet has multiple openings, which are fitted onto the corresponding light-emitting units; A support portion is provided on one side of the lamp panel; A diffuser plate is disposed on the support portion; At least one brightening area, the orthographic projection of which is located between the two light-emitting units on the lamp panel; At least one non-highlighted area, wherein the non-highlighted area and the highlighted area are staggered and do not overlap with each other; The brightening area is located on the side of the diffuser plate facing the light-emitting layer or within the diffuser plate, and the brightening area includes a transmissive light-concentrating structure for converging light.

2. The display device according to claim 1, characterized in that, The display device further includes: The first brightness enhancement film is disposed on the side of the diffuser plate facing the light-emitting layer, and the first brightness enhancement film, the brightening area and the diffuser plate are stacked in sequence.

3. The display device according to claim 2, characterized in that, The highlighted area includes: At least one prism, the width of which gradually decreases along the light emission direction of the light-emitting unit.

4. The display device according to claim 2, characterized in that, The first brightening film has a full-surface structure, and the first brightening film corresponding to the non-brightening area is smoothly disposed.

5. The display device according to claim 2, characterized in that, The first brightness enhancement film has a mesh structure, and the non-brightening area is located on the opening of the first brightness enhancement film.

6. The display device according to claim 1, characterized in that, The brightening area is located within the diffuser plate, and the brightening area includes a first hollow structure, the width of which gradually decreases along the light emission direction of the light-emitting unit.

7. The display device according to claim 6, characterized in that, The non-brightening area is located within the diffuser plate, wherein the non-brightening area includes a second hollow structure, the width of which gradually decreases along the light emission direction of the light-emitting unit.

8. The display device according to claim 7, characterized in that, The first hollow structure is a hexagonal pyramid-like structure, and the second hollow structure is a triangular pyramid.

9. The display device according to any one of claims 1-5, characterized in that, The geometric center of the brightening area coincides with the geometric center of the four adjacent light-emitting units around the brightening area. In the case of multiple prisms in the brightening area, the multiple prisms in the brightening area are arranged in a grid pattern.

10. The display device according to any one of claims 1-8, characterized in that, The shortest distance between two adjacent openings is less than the distance between the geometric centers of two adjacent light-emitting units arranged along this shortest distance.

11. The display device according to any one of claims 1-8, characterized in that, The display device further includes: The back panel includes a top, a side and a bottom, the light panel is disposed on the bottom of the back panel, and the side of the back panel is disposed on one side of the support portion; A quantum dot film is disposed on the diffusion plate; A second brightness enhancement film is disposed on the quantum dot film; A color filter layer is disposed on the top of the back plate.

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