CN-122024599-A - Light conversion assembly and display module

Abstract

The application relates to a light conversion assembly and a display module, wherein the light conversion assembly comprises a light conversion film, a light conversion structure and a display module, the light conversion film is provided with a central area and a frame area, the frame area is arranged on the periphery of the central area in a surrounding mode, the light conversion film comprises the light conversion structure, one part of the light conversion structure is located in the central area, and the other part of the light conversion structure is located in the frame area, wherein the moisture-heat resistance of the light conversion structure of the frame area is larger than that of the light conversion structure of the central area. In summary, the light conversion assembly of the present embodiment can improve the light conversion effect of the light conversion structure and enhance the light conversion capability of the light conversion film through the above arrangement.

Inventors

• CHU DANDAN
• YANG XIAODONG
• QIN GANG
• YAN YE
• WANG JIANDONG
• LI XIONGPING

Assignees

• 上海天马微电子有限公司

Dates

Publication Date

20260512

Application Date

20260401

Claims (20)

1. 1. A light conversion assembly, comprising: The light conversion film has central region and frame region, the frame region encloses and locates the periphery of central region, the light conversion film includes: A light conversion structure, wherein one part of the light conversion structure is positioned in the central area, and the other part of the light conversion structure is positioned in the frame area; The heat and humidity resistance of the light conversion structure in the frame area is greater than that of the light conversion structure in the central area.
2. 2. The light converting assembly of claim 1, wherein the light converting structure comprises: a base layer located at least in the central region; The red quantum dots are doped in at least the matrix layer of the central area; And the green quantum dots are at least doped in the matrix layer of the central area.
3. 3. The light converting assembly of claim 2, wherein the base layer is further positioned in the bezel area; the red quantum dot material and the green quantum dot material are also doped in the matrix layer of the frame area; The wet heat resistance of the red quantum dot material in the frame area is larger than that of the red quantum dot material in the central area, and the wet heat resistance of the green quantum dots in the frame area is larger than that of the green quantum dot material in the central area.
4. 4. The light conversion assembly of claim 3, wherein the half-width of the red quantum dot material of the central region is narrower than the half-width of the red quantum dot material of the bezel region; the half-width of the green quantum dot material of the central region is narrower than the half-width of the green quantum dot material of the frame region.
5. 5. A light converting assembly according to claim 3, wherein the material of the base layer of the bezel region comprises a quantum dispersant.
6. 6. The light converting assembly of claim 5, wherein the material of the base layer of the central region comprises the quantum dispersant.
7. 7. A light converting assembly according to claim 3, wherein the material of the base layer of the bezel area comprises a water-oxygen resistant material.
8. 8. The light converting assembly of claim 7, wherein the material of the base layer of the central region comprises the water-oxygen resistant material.
9. 9. A light converting assembly according to claim 2 or 3, wherein the material of the light converting structure of the bezel region comprises phosphor.
10. 10. The light converting assembly of claim 1, wherein the light converting film comprises: The isolation structure is at least partially positioned in the central area, and the isolation structure in the central area separates the light conversion structure in the central area from the light conversion structure in the frame area.
11. 11. The light converting assembly of claim 10, wherein a portion of the isolation structure is located within the central region and another portion is located within the bezel region; The isolation structure of the frame area divides the light conversion structure of the frame area into a plurality of first light conversion modules, and the plurality of first light conversion modules are arranged in a plurality of first light conversion module rows along a first direction in the frame area; The first light conversion module row of the first light conversion module row is positioned at one side of the light conversion structure of the central area along the first direction, and the first light conversion module row of the last light conversion module row is positioned at the other side of the light conversion structure of the central area along the first direction.
12. 12. The light converting assembly of claim 10, wherein each of the first light converting module rows of the first row and the first light converting module rows of the last row is located on opposite sides of the light converting structure of the central region along a second direction that intersects the first direction and the light converting film thickness direction.
13. 13. The light converting assembly of claim 10, wherein at least a portion of said first light converting module rows are located between said first light converting module row of a first row and said light converting structure of said central region among a plurality of said first light converting module rows located between said first light converting module row of a first row and said first light converting module row of a last row.
14. 14. The light converting assembly of claim 13, wherein a portion of a number of said first light converting module rows are located between said first light converting module row of a first row and said light converting structure of said central region, and a remaining number of said first light converting module rows are located at least partially between said first light converting module row of an unpopulated row and said light converting structure of said central region, among a plurality of said first light converting module rows located between said first light converting module row of a first row and said first light converting module row of a last row.
15. 15. The light converting assembly of claim 14, wherein a portion of said remaining number of said first light converting module rows are located between said first light converting module rows that are not rows and said light converting structure of said central region; And the other part of the first light conversion module rows are positioned on two opposite sides of the light conversion structure of the central area along a second direction, and the second direction is intersected with the first direction and the light conversion film thickness direction.
16. 16. The light converting assembly according to claim 12 or 15, wherein in each of said first light converting module rows located on opposite sides of said light converting structure of said central region in a second direction, a portion of said first light converting modules are located on one side of said light converting structure of said central region in said second direction, and the number of said portion of said first light converting modules is a first number; In each of the first light conversion module rows located on two opposite sides of the light conversion structure of the central area along the second direction, another part of the first light conversion modules are located on the other side of the light conversion structure of the central area along the second direction, the number of the first light conversion modules is a second numerical value, and the second numerical value is greater than or equal to the first numerical value.
17. 17. The light converting assembly of claim 16, wherein said light converting structures in said central region are located on opposite sides of said second direction and wherein the number of said first light converting modules of one of said first light converting module rows is greater than or equal to the number of said first light converting modules of the other of said first light converting module rows in any two adjacent first light converting module rows.
18. 18. The light converting assembly according to claim 12 or 15, wherein said isolation structure of said central region separates said light converting structure of said central region into a plurality of second light converting modules arranged in a plurality of second light converting module rows along said first direction; The plurality of second light conversion module rows are in one-to-one correspondence with the plurality of first light conversion module rows on two opposite sides of the light conversion structure in the central area along the second direction, and the first light conversion module row corresponding to each second light conversion module row is positioned on two opposite sides of the second light conversion module row along the second direction.
19. 19. The light converting assembly of claim 18, wherein the second light converting module has a dimension along the second direction that is equal to a dimension of the first light converting module along the second direction in the first light converting module row of the first row.
20. 20. The light converting assembly of claim 9, wherein the first light converting modules at the head end of each of the first light converting module rows are flush with the first light converting modules at the head end of an adjacent first light converting module row on a side facing away from the central area in a second direction, the second direction intersecting the first direction; The first light conversion modules at the tail ends in each first light conversion module row are flush with the first light conversion modules at the tail ends in the adjacent first light conversion module rows along one side, away from the central area, along the second direction.

Description

Light conversion assembly and display module Technical Field The present application relates to the field of display technologies, and in particular, to a light conversion assembly and a display module. Background In MiniLED (MINI LIGHT EMITTING diode) COB (Chip on board) display modules, The blue light emitted by the blue MiniLED chip of the backlight assembly irradiates the color conversion film (any one of the fluorescent film, the light conversion film and the quantum dot diffusion plate), and excites the quantum dots in the color conversion film, so that the quantum dots in the color conversion film emit red light and green light, and in the process, the red light and the green light emitted by the quantum dots in the color conversion film are mixed with the blue light irradiated to the color conversion film, so that white light is finally formed. In the related art, the color conversion mother board comprises a conversion mother board and two water-oxygen separation mother boards, quantum dots are doped in the conversion mother board, and the two water-oxygen separation mother boards are respectively arranged on two opposite sides of the conversion mother board along the thickness direction of the conversion mother board. One side of one of the water-oxygen blocking mother board, which is far away from the conversion mother board, is provided with a cutting line, and the color conversion mother board is cut along the cutting line by adopting a cutting device, so that a plurality of independent color conversion films can be obtained. In the related art, the side wall of the manufactured color conversion film is exposed to the air, and the external water vapor easily permeates the side wall of the color conversion film, diffuses from the side wall of the color conversion film towards the center of the color conversion film, erodes the color conversion film, forms a failure area around the periphery of the center of the color conversion film in the color conversion film, and finally leads to the reduction of the light conversion effect of the color conversion film. Disclosure of Invention Based on this, it is necessary to provide a light conversion module and a display module for solving the problem that the light conversion effect of the color conversion film is reduced due to the fact that the side wall of the color conversion film is easily corroded by external water vapor at present. A light conversion assembly, comprising: The light conversion film has central region and frame region, the frame region encloses and locates the periphery of central region, the light conversion film includes: A light conversion structure, wherein one part of the light conversion structure is positioned in the central area, and the other part of the light conversion structure is positioned in the frame area; The heat and humidity resistance of the light conversion structure in the frame area is greater than that of the light conversion structure in the central area. In the light conversion assembly of this embodiment, the light conversion film is divided into the central area and the frame area surrounding the periphery of the central area, so that one part of the light conversion structure of the light conversion film is located in the central area, and the other part of the light conversion structure is located in the frame area, so that the other part of the light conversion structure surrounds the periphery of one part of the light conversion structure. The heat and humidity resistance of the light conversion structure in the frame area is greater than that of the light conversion structure in the central area, so that the heat and humidity resistance of the light conversion structure in the frame area is improved. Through the moist heat resistance who improves the regional light conversion structure of frame, can strengthen the regional light conversion structure of frame's anti erosion and high temperature resistant ability, reduce the regional light conversion structure of frame, because of being corroded by steam or be difficult to bear higher ambient temperature and take place the risk of damage to reduce the regional light conversion structure of frame and take place the risk of inefficacy, guarantee the regional light conversion structure of frame normally works, improve the light conversion effect of light conversion structure, improve the light conversion ability of light conversion membrane. The application also provides a display module, which comprises the light conversion component and And the backlight assembly is used for generating light rays, is sequentially arranged with the light ray conversion assembly along the thickness direction of the light ray conversion film, and is close to one side of the light ray conversion assembly and is configured as a light emitting side of the backlight assembly. The display module in this embodiment, through setting up the light conversion film's thickness directi