CN-122028612-A - Display panel, manufacturing method thereof and display device

CN122028612ACN 122028612 ACN122028612 ACN 122028612ACN-122028612-A

Abstract

A display panel comprises a first area, a second area, a third area, a plurality of sub-pixels, a substrate base plate, an inorganic layer, a first partition structure and a second partition structure, wherein the inorganic layer, the first partition structure and the second partition structure are arranged on the substrate base plate, the first partition structure comprises a first partition part and a second partition part which are arranged in a stacked mode, the first partition part comprises a first protruding part protruding relative to the edge of the second partition part, the second partition structure comprises a first partition part and a second partition part which are arranged in a stacked mode, the first partition part comprises a second protruding part protruding relative to at least part of the edge of the second partition part, the first partition structure and the second partition structure are configured to partition at least one layer of luminous functional layers, at least part of the inorganic layer, which is arranged in the first area, serves as the first partition part, and at least part of the inorganic layer, which is arranged in the third area serves as the first partition part.

Inventors

ZHANG WEI
WU XINTONG
DONG XIANGDAN
WANG HONGLI

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: 20260512
Application Date: 20230928

Claims (13)

1. A display panel, comprising: A first area configured to be displayed; a plurality of sub-pixels located in the first region, each of at least some of the sub-pixels including a light emitting functional layer including a plurality of film layers; A substrate, and an inorganic layer on the substrate; A pixel defining pattern on the substrate in the first region, the pixel defining pattern including a plurality of first openings to define light emitting regions of at least a portion of the sub-pixels, A first partition structure on the substrate and between adjacent sub-pixels in the first region, the first partition structure including a first partition portion and a second partition portion that are stacked, the first partition portion being located on a side of the second partition portion remote from the substrate, the first partition portion including a first protruding portion protruding with respect to an edge of the second partition portion, at least a portion of the inorganic layer located in the first region being the first partition portion, the first partition structure being configured to partition at least one layer of the light emitting functional layer; The at least partial sub-pixels comprise first sub-pixels and third sub-pixels, the area of the light-emitting area of the first sub-pixels is larger than that of the light-emitting area of the third sub-pixels, the first partition structures are arranged between the adjacent first sub-pixels and the third sub-pixels, and the minimum distance between the first partition structures and the light-emitting area of the first sub-pixels is smaller than that between the first partition structures and the light-emitting area of the third sub-pixels.
2. The display panel of claim 1, wherein the at least some subpixels further comprise second subpixels, the first, second, and third subpixels being different color subpixels, The area of the light-emitting area of the second sub-pixel is larger than that of the light-emitting area of the third sub-pixel, the first partition structure is arranged between the adjacent second sub-pixel and the third sub-pixel, and the minimum distance between the first partition structure and the light-emitting area of the second sub-pixel is smaller than that between the first partition structure and the light-emitting area of the third sub-pixel.
3. The display panel of claim 2, wherein the first barrier structure is located between the light emitting functional layer and the substrate base plate, the first barrier structure including a portion surrounding a light emitting region of each of the at least some sub-pixels, The pixel defining pattern further includes a second opening, a portion of at least one of the light emitting functional layers located in the first opening is a continuous portion, and at least a portion located in at least one second opening is blocked, the first blocking structure includes at least one defining blocking portion exposed by the second opening, each of the defining blocking portions configured to block the at least one of the light emitting functional layers.
4. A display panel according to claim 3, wherein at least part of the defined partitions each have an arcuate shape in orthographic projection on the substrate base plate away from at least part of the edge of the light emitting region around which it surrounds.
5. The display panel of claim 3, wherein at least part of the sub-pixels comprise corners formed by connecting adjacent two sides of the light emitting region thereof, In the circumferential direction of the light emitting region of the same sub-pixel in the at least part of sub-pixels, the orthographic projection of the limiting partition part of the first partition structure on the substrate is not overlapped with the orthographic projection of the corner part of the sub-pixel on the substrate.
6. The display panel of any one of claims 1 to 5, wherein corners of adjacent ones of the at least some subpixels are disposed opposite each other.
7. The display panel according to claim 5, wherein the at least part of the sub-pixels are arranged as a plurality of first sub-pixel groups and a plurality of second sub-pixel groups alternately arranged in a first direction, the first sub-pixel groups including a plurality of the third sub-pixels arranged in a second direction, the second sub-pixel groups including the first sub-pixels and the second sub-pixels alternately arranged in the second direction, the first direction intersecting the second direction and each being parallel to the substrate, The first sub-pixel groups and the second sub-pixel groups are distributed in a staggered mode in the second direction, at least part of the first sub-pixels are surrounded by eight sub-pixels, and the eight sub-pixels comprise the second sub-pixels and the third sub-pixels which are alternately arranged.
8. The display panel according to claim 7, wherein a portion of the first partition structure surrounding the light emitting region of the first sub-pixel exposed by the second opening includes a plurality of first defined partitions configured to partition the at least one layer of the light emitting functional layer of the first sub-pixel, adjacent ones of the plurality of first defined partitions are located on both sides of a corner of the first sub-pixel, and a minimum distance between adjacent ones of the plurality of first defined partitions in the first direction is a first distance, a minimum distance between adjacent ones of the plurality of first defined partitions in the second direction is a second distance, The portion of the first partition structure surrounding the light emitting region of the second sub-pixel exposed by the second opening includes a plurality of second defined partitions configured to partition the at least one layer of the light emitting functional layer of the second sub-pixel, adjacent second defined partitions are located at both sides of a corner of the second sub-pixel, and a minimum distance between adjacent second defined partitions in the first direction among the plurality of second defined partitions is a third distance, a minimum distance between adjacent second defined partitions in the second direction among the plurality of second defined partitions is a fourth distance, In any one of the first direction and the second direction, corners of the adjacent first sub-pixel and second sub-pixel are disposed opposite to each other, and any one of the first distance and the third distance is greater than the second distance and the fourth distance.
9. The display panel according to claim 3, wherein the plurality of sub-pixels are arranged in a first direction and a second direction into a plurality of sub-pixel rows and a plurality of sub-pixel columns, the plurality of sub-pixel rows being arranged in the second direction with each of the sub-pixel rows extending in the first direction, the plurality of sub-pixel columns being arranged in the first direction with each of the sub-pixel columns extending in the second direction, And the central connecting line of the light-emitting area of the adjacent sub-pixels in the sub-pixel row is arranged at intervals with the limiting partition part in the first partition structure.
10. The display panel of claim 9, wherein a center line of a light emitting region of an adjacent sub-pixel in the sub-pixel column is spaced apart from a defined partition in the first partition structure.
11. A display panel according to claim 3, wherein the edges between adjacent corners in the light-emitting area of one of the adjacent sub-pixels are arranged opposite to the edges between adjacent corners in the light-emitting area of the other of the adjacent sub-pixels and have a spacing in which at least one of the first partition structures is located.
12. The display panel of claim 11, wherein a first edge of the light emitting region of the first sub-pixel between adjacent corners has a first length in an extending direction thereof, a second edge of the light emitting region of the second sub-pixel between adjacent corners has a second length in an extending direction thereof, the first length being greater than the second length, The plurality of defined interruptions includes a first defined interruption surrounding the first edge and a second defined interruption surrounding the second edge, the first defined interruption having a length in its direction of extension that is greater than a length of the second defined interruption in its direction of extension.
13. The display panel of claim 3, wherein the first isolation portion of the first partition structure has a fifth distance between an edge of the light emitting region of the first subpixel and the light emitting region of the first subpixel, A sixth distance is arranged between the edge, away from the light-emitting area of the second sub-pixel, of the first isolation part of the first isolation structure and the light-emitting area of the second sub-pixel, and the fifth distance is larger than the sixth distance.

Description

Display panel, manufacturing method thereof and display device The present application is a divisional application of chinese patent application number 202380010991.9 filed 28 at 2023, 09, which is incorporated herein by reference in its entirety as part of the present application. Technical Field Embodiments of the present disclosure relate to a display panel, a method of manufacturing the same, and a display device. Background Organic Light Emitting Diode (OLED) display products have advantages of rich colors, fast response time, foldability, etc., and are gradually replacing Liquid crystal displays (LCDs, liquid CRYSTAL DISPLAY), and thus, the market demands for life span, power consumption, high brightness mode, etc. of the Organic Light Emitting Diode (OLED) display products are increasing. The organic light emitting diode display device comprises a serial (tandem) device, and by adding at least one light emitting layer and a charge generating layer in the serial device, the service life and brightness of the light emitting device can be improved, and the power consumption can be reduced, so that the requirements of users on the service life and the power consumption of the display device can be met. Disclosure of Invention The embodiment of the disclosure provides a display panel, a manufacturing method thereof and a display device. The display panel provided by the embodiment of the disclosure comprises a first area, a second area, a third area, a plurality of sub-pixels, a substrate, an inorganic layer, a first partition structure and a second partition structure, wherein the inorganic layer, the first partition structure and the second partition structure are arranged on the substrate, the first area is configured to display, the second area is configured to transmit light, the first area is positioned on at least one side of the second area, the third area is positioned between the first area and the second area, the plurality of sub-pixels are positioned in the first area, each sub-pixel in at least part of the sub-pixels comprises a light emitting functional layer, the light emitting functional layer comprises a plurality of film layers, the first partition structure is positioned on the substrate and is positioned between adjacent sub-pixels in the first area, the first partition structure comprises a first partition and a second partition which are arranged in a laminated mode, the first partition structure is positioned on one side of the second partition structure, which is far away from the substrate, the first partition structure comprises a protruding part of the second partition structure is positioned on one side of the substrate, the second partition structure is positioned on at least one side of the second partition structure, the protruding part of the second partition structure is positioned on one side of the substrate, and the second partition structure is at least one side of the protruding part of the second partition structure, and the first partition structure is positioned on the second partition structure, and the protruding part is positioned on the second partition structure, and at least one side of the first partition structure is arranged between the first partition structure and is far away from the first partition structure and between the first partition structure and is arranged on the first partition structure and. At least a portion of the inorganic layer located in the third region serves as the first separator. For example, according to the display panel provided by the embodiment of the disclosure, the display panel further includes an organic layer located on the substrate, and the inorganic layer is located on a side of the organic layer away from the substrate, wherein at least a portion of the organic layer located in the first region serves as the second spacer, and at least a portion of the organic layer located in the third region serves as at least a portion of the second spacer. For example, according to the display panel provided by the embodiment of the disclosure, the orthographic projection of the first protrusion of the first spacer on the substrate is in a first ring shape, the orthographic projection of the second protrusion of the first spacer on the substrate is in a second ring shape, and the average ring width of the first ring shape is smaller than the average ring width of the second ring shape. For example, according to the display panel provided by the embodiment of the disclosure, the average ring width of the second ring is 1.2 to 3 times that of the first ring. For example, according to the display panel provided by the embodiment of the present disclosure, the thickness of the first spacer is substantially equal to the thickness of the first spacer in the direction perpendicular to the substrate base plate. For example, according to the display panel provided by the embodiment of the present disclosure, in the direction perpendicula