Search

CN-122003057-A - Display panel, manufacturing method thereof and display device

CN122003057ACN 122003057 ACN122003057 ACN 122003057ACN-122003057-A

Abstract

The application discloses a display panel, a manufacturing method thereof and a display device, the LED display device comprises a substrate, a plurality of luminous structures, a packaging layer, an insulating layer, a first color film layer, a second color film layer and a third color film layer which are sequentially laminated. The substrate is provided with a first light-emitting area, a second light-emitting area, a third light-emitting area and a shading area. The light-emitting structure is located in the light-emitting area, and the shading area is located between the adjacent light-emitting structures. One side of the insulating layer, which is far away from the substrate, is provided with a boss, and the orthographic projection of the boss on the substrate is positioned in the third light-emitting area. The first color film layer is positioned in the first light-emitting area and the shading area. The second color film layer is positioned in the second light-emitting area and the shading area. The third color film layer is positioned in the third light-emitting area and the shading area. The plane of the surface of the first color film layer closest to the substrate is positioned between the surface of the third color film layer closest to the substrate and the substrate. And in the shading area, the orthographic projection of the first color film layer on the substrate is overlapped with the orthographic projection of the third color film layer on the substrate.

Inventors

  • MAO NING
  • YANG MING
  • LI ZHEN
  • ZHOU XIN
  • LIU BIN
  • DU YIDE
  • WANG YUNHAO

Assignees

  • 京东方科技集团股份有限公司
  • 成都京东方光电科技有限公司

Dates

Publication Date
20260508
Application Date
20241101

Claims (15)

  1. 1. A display panel, the display panel comprising: a substrate base plate (10) having a first light-emitting region (11), a second light-emitting region (12), a third light-emitting region (13), and a light-shielding region (14); A plurality of light emitting structures including a first light emitting structure (261) located in the first light emitting region (11), a second light emitting structure (262) located in the second light emitting region (12), a third light emitting structure (263) located in the third light emitting region (13), the light shielding region (14) being located between adjacent light emitting structures; -an encapsulation layer (27) covering the light emitting structure and the light shielding region (14); The packaging structure comprises a substrate (10), an insulating layer (21), a boss (210) and a third light-emitting area (13), wherein the insulating layer (21) is positioned on one side of the packaging layer (27) away from the substrate (10), and the boss (210) is positioned on one side of the insulating layer (21) away from the substrate (10) and is subjected to orthographic projection on the substrate (10); the first color film layer (31) is positioned at one side of the insulating layer (21) far away from the substrate (10), and the orthographic projection of the first color film layer (31) on the substrate (10) is positioned at the first light-emitting area (11) and the light-shielding area (14); the second color film layer (32) is positioned on one side of the insulating layer (21) far away from the substrate (10) and one side of the first color film layer (31) far away from the substrate (10), and the orthographic projection of the second color film layer (32) on the substrate (10) is positioned on the second light-emitting area (12) and the light-shielding area (14); The third color film layer (33) is positioned on one side of the boss (210) and the second color film layer (32) far away from the substrate (10), and the orthographic projection of the third color film layer (33) on the substrate (10) is positioned in the third light-emitting area (13) and at least part of the shading area (14); The plane where the first color film layer (31) is located on the surface closest to the substrate (10) is located between the surface closest to the substrate (10) and the substrate (10) of the third color film layer (33), and in the shading area (14), the orthographic projection of the first color film layer (31) on the substrate (10) overlaps with the orthographic projection of the third color film layer (33) on the substrate (10).
  2. 2. The display panel according to claim 1, characterized in that the plane of the surface of the second color film layer (32) closest to the substrate (10) is located between the surface of the third color film layer (33) closest to the substrate (10) and the substrate (10), and in that the orthographic projection of the second color film layer (32) on the substrate (10) overlaps with the orthographic projection of the third color film layer (33) on the substrate (10) in the light shielding region (14).
  3. 3. The display panel according to claim 2, characterized in that the height of the boss (210) is greater than the thickness of the first color film layer (31) in a direction perpendicular to the substrate base plate (10).
  4. 4. The display panel according to claim 1, wherein the insulating layer (21) is a first protective layer (22), the first protective layer (22) having a first high region (221) and a first low region (222), the first protective layer (22) having a thickness in the first high region (221) that is greater than a thickness in the first low region (222) in a direction perpendicular to the substrate base plate (10); The first low area (222) covers the first light-emitting area (11), the second light-emitting area (12) and the shading area (14), the first high area (221) is located in the third light-emitting area (13), the first color film layer (31) is arranged on the first protective layer (22) of the first low area (222), the second color film layer (32) is arranged on the first protective layer (22) of the first low area (222) and the first color film layer (31) located in the shading area (14), and the third color film layer (33) is arranged on the first protective layer (22) of the first high area (221) and the second color film layer (32) located in the shading area (14).
  5. 5. The display panel according to claim 4, the display panel is characterized in that the display panel further comprises: The touch control insulating layer (23) is positioned between the first protective layer (22) and the packaging layer (27), and the touch control insulating layer (23) is provided with a communication hole (230); The touch control device comprises a first touch control insulating layer (23), a first touch control metal layer (241), a second touch control metal layer (93), a second touch control metal layer (241) and a second touch control metal layer, wherein the first touch control metal layer (241) is positioned between the touch control insulating layer (23) and the first protective layer (10), the first touch control metal layer (241) comprises a plurality of first touch control sub-electrodes (91) which are sequentially arranged along a first direction and are spaced from each other, and a plurality of second touch control sub-electrodes (92) and a plurality of connecting electrodes (93) which are sequentially arranged along a second direction, the plurality of second touch control sub-electrodes (92) and the plurality of connecting electrodes (93) are alternately distributed one by one and are sequentially connected to form second touch control electrodes which extend along the second direction, the first direction is intersected with the second direction, and the first touch control sub-electrodes (91) and the second touch control sub-electrodes (92) are spaced from each other; The second touch metal layer (242) is located between the touch insulating layer (23) and the packaging layer (27), the second touch metal layer (242) comprises a plurality of bridging electrodes which are spaced from each other, and each bridging electrode is connected with two adjacent first touch sub-electrodes through the communication hole (230) to form a first touch electrode extending along the first direction.
  6. 6. A display panel according to claim 1, characterized in that the insulating layer (21) comprises: The touch insulation layer (23) is positioned on one side of the packaging layer (27) far away from the substrate (10), and orthographic projection of the touch insulation layer (23) on the substrate (10) covers the first light-emitting area (11), the second light-emitting area (12), the third light-emitting area (13) and the shading area (14); The touch control insulating layer (23) is positioned on one side far away from the substrate (10), and the orthographic projection of the first protective layer (22) on the substrate (10) is positioned in the third light-emitting area (13); The first color film layer (31) is arranged on the touch insulating layer (23), the second color film layer (32) is arranged on the touch insulating layer (23) and the first color film layer (31) which is positioned in the shading area (14), and the third color film layer (33) is arranged on the first protective layer (22) and the second color film layer (32) which is positioned in the shading area (14).
  7. 7. The display panel according to claim 1, wherein the insulating layer (21) is a touch insulating layer (23), the touch insulating layer (23) is formed by using an organic packaging material and has a second high region (231) and a second low region (232), and the thickness of the touch insulating layer (23) is greater at the second high region (231) than at the second low region (232) in a direction perpendicular to the substrate (10); The second low area (232) covers the first light-emitting area (11), the second light-emitting area (12) and the shading area (14), the second high area (231) is located in the third light-emitting area (13), the first color film layer (31) is arranged on the touch insulation layer (23) of the second low area (232), the second color film layer (32) is arranged on the touch insulation layer (23) of the second low area (232) and the first color film layer (31) located in the shading area (14), and the third color film layer (33) is arranged on the touch insulation layer (23) of the second high area (231) and the second color film layer (32) located in the shading area (14).
  8. 8. The display panel according to claim 6 or 7, wherein the touch insulating layer (23) has a communication hole (230); The display panel further includes: A first touch metal layer (241) located between the touch insulating layer (23) and the first color film layer (31); the first touch metal layer (241) comprises a plurality of first touch sub-electrodes which are sequentially arranged along a first direction and are spaced from each other, and a plurality of second touch sub-electrodes and a plurality of connecting electrodes which are sequentially arranged along a second direction, wherein the plurality of second touch sub-electrodes and the plurality of connecting electrodes are alternately distributed one by one and are sequentially connected to form second touch electrodes which extend along the second direction; The second touch metal layer (242) is located between the touch insulating layer (23) and the packaging layer (27), the second touch metal layer (242) comprises a plurality of bridging electrodes which are spaced from each other, and each bridging electrode is connected with two adjacent first touch sub-electrodes through the communication hole (230) to form a first touch electrode extending along the first direction.
  9. 9. The display panel according to any one of claims 1-7, wherein the refractive index of the first color film layer (31) is smaller than the refractive index of the second color film layer (32), and the refractive index of the second color film layer (32) is smaller than the refractive index of the third color film layer (33).
  10. 10. A display device comprising the display panel according to any one of claims 1-9.
  11. 11. A method for manufacturing a display panel, the method comprising: providing a substrate, wherein the substrate is provided with a first light-emitting area, a second light-emitting area, a third light-emitting area and a shading area; forming a plurality of light-emitting structures on the substrate, wherein the light-emitting structures comprise a first light-emitting structure positioned in the first light-emitting region, a second light-emitting structure positioned in the second light-emitting region and a third light-emitting structure positioned in the third light-emitting region, and the light-shielding region is positioned between the adjacent light-emitting structures; paving an encapsulation layer on the light-emitting structure and the shading area; Forming an insulating layer on the packaging layer, wherein a boss is arranged on one side of the insulating layer, which is far away from the substrate, and the orthographic projection of the boss on the substrate is positioned in the third light-emitting area; The method comprises the steps of sequentially forming a first color film layer, a second color film layer and a third color film layer on an insulating layer, wherein orthographic projection of the first color film layer on a substrate is located in a first light-emitting area and a light-shielding area, orthographic projection of the second color film layer on the substrate is located in a second light-emitting area and the light-shielding area, orthographic projection of the third color film layer on the substrate is located in a third light-emitting area and the light-shielding area, and a plane of the surface of the first color film layer closest to the substrate is located between the surface of the third color film layer closest to the substrate and the substrate, and orthographic projection of the first color film layer on the substrate and orthographic projection of the third color film layer on the substrate overlap.
  12. 12. The method according to claim 11, wherein the plane of the surface of the second color film layer closest to the substrate is located between the surface of the third color film layer closest to the substrate and the substrate, and in the light shielding region, the orthographic projection of the second color film layer on the substrate overlaps the orthographic projection of the third color film layer on the substrate.
  13. 13. The method of manufacturing as claimed in claim 11 or 12, wherein forming an insulating layer on the encapsulation layer comprises: forming a first protective layer on the encapsulation layer; And etching the first protection layer through a half-tone mask plate to enable the first protection layer to be provided with a first high area and a first low area, wherein the thickness of the first protection layer in the first high area is larger than that in the first low area in the direction perpendicular to the substrate, the first low area covers the first light-emitting area, the second light-emitting area and the light-shielding area, and the first high area is located in the third light-emitting area.
  14. 14. The method of manufacturing as claimed in claim 11 or 12, wherein forming an insulating layer on the encapsulation layer comprises: Forming a touch insulating layer on the packaging layer, etching the touch insulating layer, and forming a communication hole in the touch insulating layer, wherein orthographic projection of the touch insulating layer on the substrate base plate covers the first light-emitting area, the second light-emitting area, the third light-emitting area and the shading area; And forming a first protective layer on the touch insulating layer, etching the first protective layer, and orthographic projecting the first protective layer on the substrate and being positioned in the third light-emitting area.
  15. 15. The method of manufacturing as claimed in claim 11 or 12, wherein forming an insulating layer on the encapsulation layer comprises: Forming a touch insulating layer on the packaging layer by adopting an organic packaging material, etching the touch insulating layer, and forming a communication hole in the touch insulating layer; Etching the touch insulating layer through a half-tone mask plate to enable the touch insulating layer to be provided with a second high area and a second low area, wherein the thickness of the touch insulating layer in the second high area is larger than that in the second low area in the direction perpendicular to the substrate, the second low area covers the first light-emitting area, the second light-emitting area and the light-shielding area, and the second high area is located in the third light-emitting area.

Description

Display panel, manufacturing method thereof and display device Technical Field The application belongs to the technical field of display, and particularly relates to a display panel, a manufacturing method thereof and a display device. Background OLED (organic light-Emitting Diode, chinese) is a self-luminous display without backlight source and liquid crystal, and has excellent color saturation, contrast and reaction speed. The OLED is thinner, transparent and flexible, and can realize diversified designs. The technology of COE (English: color filter On Encapsulation, chinese: filter on package) is a new technology at present, and a polarizer-free structure is realized by depositing a color film after the traditional OLED is packaged. However, the problem that the light-emitting efficiency is affected due to the too thick color film occurs at present. Disclosure of Invention The application provides a display panel, a manufacturing method thereof and a display device, and aims to solve the problem that the light-emitting efficiency is affected due to the fact that a color film is too thick to at least a certain extent. In a first aspect of the present application, there is provided a display panel including: A substrate base plate having a first light emitting region, a second light emitting region, a third light emitting region, and a light shielding region; The light-emitting structures comprise a first light-emitting structure positioned in the first light-emitting area, a second light-emitting structure positioned in the second light-emitting area and a third light-emitting structure positioned in the third light-emitting area, and the shading area is positioned between the adjacent light-emitting structures; the packaging layer covers the light emitting structure and the shading area; the packaging structure comprises a substrate, an insulating layer, a third light-emitting area, a fourth light-emitting area, a fifth light-emitting area, a sixth light-emitting area, a seventh light-emitting area, a fifth light-emitting area, a sixth light-emitting area, and a sixth light-emitting area; The first color film layer is positioned on one side of the insulating layer far away from the substrate base plate, and orthographic projection of the first color film layer on the substrate base plate is positioned in the first light-emitting area and the light-shielding area; The second color film layer is positioned on one side of the insulating layer far away from the substrate base plate and one side of the first color film layer far away from the substrate base plate; The second color film layer is positioned on one side of the boss, which is far away from the substrate, and the second color film layer is positioned on the second light emitting area and at least part of the shading area; The plane of the surface of the first color film layer closest to the substrate is located between the surface of the third color film layer closest to the substrate and the substrate, and in the shading area, the orthographic projection of the first color film layer on the substrate overlaps with the orthographic projection of the third color film layer on the substrate. In some embodiments, the plane of the surface of the second color film layer closest to the substrate is located between the surface of the third color film layer closest to the substrate and the substrate, and in the light shielding area, the orthographic projection of the second color film layer on the substrate overlaps with the orthographic projection of the third color film layer on the substrate. In some embodiments, the height of the boss is greater than the thickness of the first color film layer in a direction perpendicular to the substrate base plate. In some embodiments, the insulating layer is a first protective layer having a first high region and a first low region, the first protective layer having a thickness in the first high region greater than a thickness in the first low region in a direction perpendicular to the substrate base plate; the first color film layer is arranged on the first protection layer of the first low region, the second color film layer is arranged on the first protection layer of the first low region and the first color film layer positioned on the light shielding region, and the third color film layer is arranged on the first protection layer of the first high region and the second color film layer positioned on the light shielding region. In some embodiments, the display panel further includes: The touch insulation layer is positioned between the first protection layer and the packaging layer and is provided with a communication hole; The touch device comprises a touch insulating layer, a first touch metal layer, a second touch metal layer, a first protective layer, a second protective layer, a first electrode and a second electrode, wherein the first touch metal layer is positioned between the touch insulating layer and