WO-2026091869-A1 - DISPLAY PANEL AND DISPLAY DEVICE

WO2026091869A1WO 2026091869 A1WO2026091869 A1WO 2026091869A1WO-2026091869-A1

Abstract

The present application discloses a display panel and a display device. The display panel comprises a driving backplane, light-emitting devices, a touch layer, and a color resist layer. A touch insulation layer is provided with a plurality of light regulation holes. By configuring a plurality of color resist blocks to correspond to the plurality of light regulation holes, and the plurality of light regulation holes to correspond to the plurality of light-emitting devices, the plurality of color resist blocks can correspond to the plurality of light-emitting devices, so that the color resist blocks can achieve a light filtering function for the corresponding light-emitting devices. In addition, at least a part of each color resist block is disposed in the corresponding light regulation hole, so that the thickness of the display panel can be reduced, thereby achieving a thinner and lighter display panel.

Inventors

QIN, Shaojie
BAO, Jiandong
LIU, BIN
YANG, MING

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
北京京东方技术开发有限公司

Dates

Publication Date: 20260507
Application Date: 20250904
Priority Date: 20241030

Claims (15)

A display panel, characterized in that the display panel comprises: a driving backplate, a light-emitting device, a touch layer, and a color resist layer; The number of light-emitting devices is multiple, and all of the multiple light-emitting devices are located on the same side of the driving back plate; The touch layer is located on the side of the plurality of light-emitting devices away from the driving backplate. The touch layer includes: a first touch electrode layer, a touch insulating layer and a second touch electrode layer stacked along the direction away from the driving backplate. The touch insulating layer has a plurality of dimming holes, which correspond to the plurality of light-emitting devices. The orthographic projection of the dimming hole on the driving backplate overlaps with the orthographic projection of the corresponding light-emitting device on the driving backplate. The color resist layer is located on the side of the plurality of light-emitting devices away from the driving backplate. The color resist layer includes a plurality of color resist blocks, which correspond to the plurality of dimming holes. At least a portion of the color resist blocks is located within the corresponding dimming holes.
According to claim 1, the display panel is characterized in that at least a portion of the dimming hole includes: a first sub-via and a second sub-via communicating with the first sub-via, wherein the first sub-via is closer to the driving backplate than the second sub-via; The first sub-via has a first opening on the side away from the drive back plate, and the second sub-via has a second opening on the side facing the drive back plate. The size of the first opening is smaller than the size of the second opening, so that a stepped surface is formed between the first opening and the second opening. The portion of the color resist block located within the dimming hole contacts the inner walls of the first sub-via and the second sub-via, and also contacts the stepped surface.
According to claim 2, the display panel is characterized in that the first sub-via has a third opening on the side facing the driving back plate, and the angle between the plane where the third opening is located and the inner wall of the first sub-via is an obtuse angle; and the angle between the stepped surface and the inner wall of the second sub-via is an obtuse angle.
The display panel according to claim 2 is characterized in that, in the direction parallel to the driving back plate, the width of the stepped surface is greater than or equal to 4.5 micrometers.
The display panel according to claim 3 is characterized in that the second sub-via has a fourth opening on the side opposite to the driving back plate; In the direction perpendicular to the drive backplate, the distance between the stepped surface and the surface where the third opening is located ranges from 1.2 micrometers to 2 micrometers, and the distance between the stepped surface and the surface where the fourth opening is located ranges from 1.5 micrometers to 2 micrometers.
The display panel according to any one of claims 1-5 is characterized in that the color resist block is in contact with the inner wall of the corresponding dimming hole; The refractive index of the color resist block is greater than that of the touch insulating layer.
The display panel according to any one of claims 1-5 is characterized in that the plurality of light-emitting devices include: a plurality of first light-emitting devices, a plurality of second light-emitting devices and a plurality of third light-emitting devices, wherein the first light-emitting devices are used to emit light of a first color, the second light-emitting devices are used to emit light of a second color, and the third light-emitting devices are used to emit light of a third color. The plurality of color blocks includes at least one of a first color block with the first color, a second color block with the second color, and a third color block with the third color.
The display panel according to claim 7 is characterized in that the plurality of color resist blocks are all the first color resist blocks, the plurality of first color resist blocks correspond one-to-one with the plurality of first light-emitting devices, and the orthographic projection of the first color resist block on the driving back plate overlaps with the orthographic projection of the corresponding first light-emitting device on the driving back plate. The touch insulating layer has light filtering properties, and the touch insulating layer is used to transmit the second color light and the third color light, while blocking other colors of light; The orthographic projections of the second and third light-emitting devices on the driving backplate are both located within the orthographic projection of the touch insulating layer on the driving backplate.
According to claim 7, the display panel is characterized in that a portion of the plurality of color resist blocks are first color resist blocks, and another portion of the color resist blocks are second color resist blocks; the plurality of first color resist blocks correspond one-to-one with the plurality of first light-emitting devices, and the plurality of second color resist blocks correspond one-to-one with the plurality of second light-emitting devices; and the orthographic projection of the first color resist block on the driving back panel overlaps with the orthographic projection of the corresponding first light-emitting device on the driving back panel, and the orthographic projection of the second color resist block on the driving back panel overlaps with the orthographic projection of the corresponding second light-emitting device on the driving back panel; The touch insulating layer has a light filtering property, and the touch insulating layer is used to transmit the third color light and block other colors of light; The orthographic projection of the third light-emitting device on the driving back plate is located within the orthographic projection of the touch insulating layer on the driving back plate.
The display panel according to claim 7 is characterized in that a portion of the plurality of color resist blocks are the first color resist block, another portion of the color resist blocks are the second color resist block, and yet another portion of the color resist blocks are a plurality of the third color resist blocks; Each of the first color resist blocks corresponds one-to-one with the plurality of first light-emitting devices, each of the second color resist blocks corresponds one-to-one with the plurality of second light-emitting devices, and each of the third color resist blocks corresponds one-to-one with the plurality of third light-emitting devices; and the orthographic projection of the first color resist block on the driving back panel overlaps with the orthographic projection of the corresponding first light-emitting device on the driving back panel, the orthographic projection of the second color resist block on the driving back panel overlaps with the orthographic projection of the corresponding second light-emitting device on the driving back panel, and the orthographic projection of the third color resist block on the driving back panel overlaps with the orthographic projection of the corresponding third light-emitting device on the driving back panel.
The display panel according to any one of claims 1-5 and 8-10 is characterized in that all the color resist blocks are located within the corresponding dimming holes; The display panel further includes a black matrix layer, which is located on the side of the touch layer away from the driving back plate. The black matrix layer has multiple light-transmitting holes, which correspond to multiple light-emitting devices. The orthographic projection of the light-transmitting hole on the driving back plate overlaps with the orthographic projection of the corresponding light-emitting device on the driving back plate. The second touch electrode layer is projected onto the drive back panel in a positive projection, which is located within the positive projection of the black matrix layer onto the drive back panel.
The display panel according to any one of claims 1-5 and 8-10 is characterized in that the color resist block comprises: a main body portion and an edge portion, the main body portion being located inside the dimming hole, and the edge portion being located outside the dimming hole and distributed on the side of the second touch electrode layer away from the driving back plate; The orthographic projection of the second touch electrode layer on the drive back plate is located within the orthographic projection of the edges of the plurality of color resist blocks on the drive back plate.
The display panel according to claim 12 is characterized in that the edge portion is in contact with the second touch electrode layer on the side facing the driving back plate.
The display panel according to claim 12 is characterized in that, when two adjacent color resist blocks are respectively a first color resist block and a second color resist block, in the region between the main body portion of the first color resist block and the main body portion of the second color resist block, the edge portion of the first color resist block and the edge portion of the second color resist block are stacked.
A display device, characterized in that the display device includes a power supply assembly and a display panel as described in any one of claims 1 to 14.

Description

Display panel and display device This disclosure claims priority to Chinese Patent Application No. 202411535222.3, filed on October 30, 2024, entitled “Display Panel and Display Device”, the entire contents of which are incorporated herein by reference. Technical Field This application relates to the field of display technology, and in particular to a display panel and display device. Background Technology A display panel is a device used to display images and text. In some current display panels, the effect of integrated display and touch is achieved by integrating touch functions. Therefore, in addition to the structure used to realize the display function, a film layer used to realize the touch function is added to the display panel. However, the aforementioned film layer used to achieve touch functionality increases the thickness of the display panel, resulting in poor performance in achieving a thinner and lighter display panel. Summary of the Invention This application provides a display panel and a display device. The technical solution is as follows: According to one aspect of this application, a display panel is provided, the display panel comprising: a driving backplane, a light-emitting device, a touch layer, and a color resist layer; The number of light-emitting devices is multiple, and all of the multiple light-emitting devices are located on the same side of the driving back plate; The touch layer is located on the side of the plurality of light-emitting devices away from the driving backplate. The touch layer includes: a first touch electrode layer, a touch insulating layer and a second touch electrode layer stacked along the direction away from the driving backplate. The touch insulating layer has a plurality of dimming holes, which correspond to the plurality of light-emitting devices. The orthographic projection of the dimming hole on the driving backplate overlaps with the orthographic projection of the corresponding light-emitting device on the driving backplate. The color resist layer is located on the side of the plurality of light-emitting devices away from the driving backplate. The color resist layer includes a plurality of color resist blocks, which correspond to the plurality of dimming holes. At least a portion of the color resist blocks is located within the corresponding dimming holes. Optionally, at least a portion of the dimming aperture includes: a first sub-via and a second sub-via communicating with the first sub-via, wherein the first sub-via is closer to the drive backplane than the second sub-via; The first sub-via has a first opening on the side away from the drive back plate, and the second sub-via has a second opening on the side facing the drive back plate. The size of the first opening is smaller than the size of the second opening, so that a stepped surface is formed between the first opening and the second opening. The portion of the color resist block located within the dimming hole contacts the inner walls of the first sub-via and the second sub-via, and also contacts the stepped surface. Optionally, the first sub-via has a third opening on the side facing the drive back plate, and the angle between the plane of the third opening and the inner wall of the first sub-via is an obtuse angle; and the angle between the stepped surface and the inner wall of the second sub-via is an obtuse angle. Optionally, the width of the stepped surface is greater than or equal to 4.5 micrometers in a direction parallel to the drive backplate. Optionally, the second sub-via has a fourth opening on the side opposite to the drive backplate; In the direction perpendicular to the drive backplate, the distance between the stepped surface and the surface where the third opening is located ranges from 1.2 micrometers to 2 micrometers, and the distance between the stepped surface and the surface where the fourth opening is located ranges from 1.5 micrometers to 2 micrometers. Optionally, the color resist block contacts the inner wall of the corresponding dimming hole; The refractive index of the color resist block is greater than that of the touch insulating layer. Optionally, the plurality of light-emitting devices include: a plurality of first light-emitting devices, a plurality of second light-emitting devices, and a plurality of third light-emitting devices, wherein the first light-emitting devices are used to emit light of a first color, the second light-emitting devices are used to emit light of a second color, and the third light-emitting devices are used to emit light of a third color; The plurality of color blocks includes at least one of a first color block with the first color, a second color block with the second color, and a third color block with the third color. Optionally, all of the plurality of color resist blocks are the first color resist blocks, and the plurality of first color resist blocks correspond one-to-one with the plurality of first light-emitting devices, and