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CN-117456846-B - Display device

CN117456846BCN 117456846 BCN117456846 BCN 117456846BCN-117456846-B

Abstract

The application relates to a display device which comprises a lamp panel, a light-emitting layer, a supporting part, a diffusion plate, at least one bright lifting area and at least one non-bright lifting area, wherein the light-emitting layer is arranged on the lamp panel and comprises a plurality of light-emitting units which are arranged in an array mode, the supporting part is arranged on one side of the lamp panel, the diffusion plate is arranged on the supporting part, the orthographic projection of the bright lifting area on the lamp panel is positioned between the two light-emitting units, the non-bright lifting area and the bright lifting area are arranged in a staggered mode and are not overlapped with each other, and the bright lifting area is arranged on one side of the diffusion plate facing the light-emitting layer or is positioned in the diffusion plate. The application can improve the brightness of the dark areas at the overlapped positions of different light-emitting units, reduce the brightness difference between the dark areas and the bright areas corresponding to the light-emitting units, further solve the problem of horizontal or vertical dark marks of the display device, and is beneficial to the thickness reduction and the cost reduction of the display device.

Inventors

  • CHEN LU
  • LIU QIONG
  • LIU JUNPENG
  • XIN WUGEN

Assignees

  • TCL华星光电技术有限公司

Dates

Publication Date
20260512
Application Date
20231018

Claims (11)

  1. 1. A display device, comprising: A lamp panel; The light-emitting layer is arranged on the lamp panel and comprises a plurality of light-emitting units which are arranged in an array; The reflecting sheet is arranged on the lamp panel, a plurality of openings are formed in the reflecting sheet, and the openings are sleeved on the corresponding light-emitting units; the support part is arranged on one side of the lamp panel; the diffusion plate is arranged on the supporting part; the orthographic projection of the brightening area on the lamp panel is positioned between the two light-emitting units; at least one non-brightness-improving area, wherein the non-brightness-improving areas and the brightness-improving areas are arranged in a staggered way and are not overlapped with each other; The light-emitting layer is arranged on the surface of the diffusion plate, and the light-emitting layer is arranged on the surface of the diffusion plate.
  2. 2. The display device according to claim 1, characterized in that the display device further comprises: The first brightness enhancement film is arranged on one side of the diffusion plate facing the light-emitting layer, and the first brightness enhancement film, the brightness enhancement area and the diffusion plate are sequentially laminated.
  3. 3. The display device of claim 2, wherein the highlight region comprises: And the width of the prism is gradually reduced along the light emitting direction of the light emitting unit.
  4. 4. The display device according to claim 2, wherein the first brightness enhancement film has a full-face structure, and the first brightness enhancement film corresponding to the non-brightness enhancement region is smoothly disposed.
  5. 5. The display device of claim 2, wherein the first brightness enhancement film is a mesh structure and the non-brightness enhancement region is disposed on a window of the first brightness enhancement film.
  6. 6. The display device of claim 1, wherein the light-up region is located in the diffusion plate, wherein the light-up region includes a first hollow structure, and a width of the first hollow structure gradually decreases along a light-emitting direction of the light-emitting unit.
  7. 7. The display device of claim 6, wherein the non-brightness enhancing region is located in the diffusion plate, wherein the non-brightness enhancing region comprises a second hollow structure, and a width of the second hollow structure gradually decreases along a light emitting direction of the light emitting unit.
  8. 8. The display device of claim 7, wherein the first hollowed-out structure is a hexagonal pyramid-like structure and the second hollowed-out structure is a triangular pyramid-like structure.
  9. 9. The display device according to any one of claims 1 to 5, wherein a geometric center of the bright field coincides with a geometric center of four adjacent light emitting units around the bright field, wherein in a case where a plurality of prisms of the bright field are provided, the plurality of prisms of the bright field are arranged in a lattice shape.
  10. 10. A display device according to any one of claims 1-8, wherein the shortest distance between two adjacent openings is smaller than the distance between the geometrical centers of two adjacent light emitting units arranged along the shortest distance.
  11. 11. The display device according to any one of claims 1 to 8, wherein the display device further comprises: the back plate comprises a top, a side part and a bottom, the lamp panel is arranged on the bottom of the back plate, and the side part of the back plate is arranged on one side of the supporting part; The quantum dot film is arranged on the diffusion plate; The second brightness enhancement film is arranged on the quantum dot film; the color film layer is arranged on the top of the backboard.

Description

Display device Technical Field The application relates to the technical field of display, in particular to a display device. Background In the related art, for a Mini LED display device, in order to reduce the thickness of the display device, it is necessary to reduce the Optical Density (OD) value or reduce the number of LEDs, but the reduction of the Optical Density or the reduction of the number of LEDs further limits the Optical path of the LEDs, so that when the light mixing is insufficient, the Mini LED display device easily displays the dark streak problem of crisscross arrangement, thereby reducing the display quality of the panel, and resulting in poor user experience. Therefore, how to solve the problem of dark streaks displayed by the Mini LED display device is particularly important. Disclosure of Invention In view of this, the present application provides a display device, which can improve the brightness of dark areas at overlapping positions of different light emitting units, reduce the brightness difference between dark areas and bright areas corresponding to the light emitting units, and further solve the problem of horizontal or vertical dark lines of the display device, so as to facilitate the thickness reduction and cost reduction of the display device. According to one aspect of the application, a display device is provided, which comprises a lamp panel, a light-emitting layer arranged on the lamp panel, wherein the light-emitting layer comprises a plurality of light-emitting units arranged in an array, a supporting part arranged on one side of the lamp panel, a diffusion plate arranged on the supporting part, at least one bright lifting area, at least one non-bright lifting area and at least one non-bright lifting area, wherein the orthographic projection of the bright lifting area on the lamp panel is positioned between the two light-emitting units, the non-bright lifting areas and the bright lifting areas are arranged in a staggered mode and are not overlapped with each other, and the bright lifting area is arranged on one side of the diffusion plate facing the light-emitting layer or is positioned in the diffusion plate. By arranging at least one bright lifting area and at least one non-bright lifting area on one side of the diffusion plate, arranging the bright lifting areas and the two light-emitting units correspondingly, arranging the non-bright lifting areas and the light-emitting units correspondingly, arranging the bright lifting areas on one side of the diffusion plate facing the light-emitting layer or in the diffusion plate, and enabling the non-bright lifting areas and the bright lifting areas to be arranged in a staggered manner and not overlapped with each other, the brightness of dark areas at overlapped positions of different light-emitting units can be improved, the brightness difference between the dark areas and the bright areas corresponding to the light-emitting units is reduced, the problem of transverse or vertical dark lines of the display device is solved, and the thickness reduction and the cost reduction of the display device are facilitated. Drawings The technical solution and other advantageous effects of the present application will be made apparent by the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings. Fig. 1 shows a schematic structural diagram of a related art Mini LED display device. Fig. 2 shows a schematic diagram of a light-emitting path of the related art. Fig. 3 shows a schematic cross-sectional view of a first display device according to an embodiment of the application. Fig. 4 shows a schematic top view of a first display device according to an embodiment of the application. Fig. 5 shows a schematic cross-sectional view of a second display device according to an embodiment of the application. Fig. 6 is a schematic cross-sectional view of a third display device according to an embodiment of the application. Detailed Description The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application. In the description of the present 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", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the dra