US-20260130051-A1 - DISPLAY PANEL AND DISPLAY APPARATUS

US20260130051A1US 20260130051 A1US20260130051 A1US 20260130051A1US-20260130051-A1

Abstract

The present application relates to a display panel and display apparatus, the display panel comprises a first display area and a second display area, and a transmittance of the first display area being larger than a transmittance of the second display area; the display panel comprises a cathode patterning material layer disposed in the first display area and on a side of the pixel definition layer away from the substrate and a cathode layer; the cathode patterning material layer is disposed in the first display area; the sub-pixels are respectively disposed in the pixel openings; the cathode layer comprises a plurality of cathode patterns; the cathode patterning material layer comprises a plurality of material patterns spaced apart from each other; and the plurality of material patterns comprise a plurality of first patterns and a plurality of second patterns, and the first patterns have different shapes from the second patterns.

Inventors

Shaowei Liu
Chong QIAN
Shengjuan LIU

Assignees

Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

Dates

Publication Date: 20260507
Application Date: 20250210
Priority Date: 20241104

Claims (16)

1 . A display panel, provided with a first display area and a second display area and comprising a plurality of sub-pixels, a transmittance of the first display area being larger than a transmittance of the second display area, and the display panel further comprising: a substrate; a pixel definition layer disposed on a side of the substrate, wherein the pixel definition layer comprises a plurality of pixel definition structures and pixel openings surrounded by the pixel definition structures respectively, and the sub-pixels are respectively disposed in the pixel openings; a cathode patterning material layer disposed in the first display area and on a side of the pixel definition layer away from the substrate, wherein the cathode patterning material layer comprises a plurality of material patterns spaced apart from each other, the plurality of material patterns comprise a plurality of first patterns and a plurality of second patterns, and the first patterns have different shapes from the second patterns; and a cathode layer comprising a plurality of cathode patterns, wherein an orthographic projection of the cathode pattern on the substrate covers an orthographic projection of the corresponding pixel opening on the substrate, and orthographic projections of the first pattern and the second pattern on the substrate each are spaced apart from the orthographic projection of the pixel opening on the substrate.
2 . The display panel according to claim 1 , wherein the plurality of sub-pixels comprise first color sub-pixels, second color sub-pixels, and third color sub-pixels; and wherein in the first displayer area, two of the first color sub-pixels and one of the second color sub-pixels are located at three corner positions a first virtual triangle, one of the second color sub-pixel is located on a first side between the two first color sub-pixels in the first virtual triangle, and a first angle is an angle, opposite to the first side, of the first virtual triangle; in the first displayer area, two of the second color sub-pixels and one of the third color sub-pixels are located at three corner positions of a second virtual triangle, one of the third color sub-pixel is located on a second side between the two second color sub-pixels in the second virtual triangle, a second angle is an angle, opposite to the second side, of the second virtual triangle, and an orientation of the second angle is opposite to an orientation of the first angle; and in the first displayer area, a plurality of the first virtual triangles and a plurality of the second virtual triangles are alternately arranged in a first direction, and a plurality of the first virtual triangles and a plurality of the second virtual triangles are alternately arranged in a second direction, the first direction and the second direction intersecting with each other.
3 . The display panel according to claim 2 , wherein the plurality of first patterns comprise a first sub-pattern corresponding to the first virtual triangle and a second sub-pattern corresponding to the second virtual triangle; an orthographic projection of the first sub-pattern on the substrate at least partially overlaps with an orthographic projection of the first virtual triangle on the substrate and is spaced apart from an orthographic projection of the second virtual triangle on the substrate; and an orthographic projection of the second sub-pattern on the substrate at least partially overlaps with the orthographic projection of the second virtual triangle on the substrate and is spaced apart from the orthographic projection of the first virtual triangle on the substrate.
4 . The display panel according to claim 3 , wherein the orthographic projection of the first sub-pattern on the substrate intersects with orthographic projections of two sides forming the first angle in the first virtual triangle on the substrate; and the orthographic projection of the second sub-pattern on the substrate intersects with orthographic projections of two sides forming the second angle in the second virtual triangle on the substrate.
5 . The display panel according to claim 3 , wherein orthographic projections of the second patterns on the substrate are located between orthographic projections of adjacent two of the first virtual triangles on the substrate and between orthographic projections of adjacent two of the second virtual triangles on the substrate.
6 . The display panel according to claim 5 , wherein the cathode patterning material layer further comprises a plurality of connection patterns, at least adjacent two of the material patterns are connected by the connection pattern, and an orthographic projection of the connection pattern on the substrate is spaced apart from the orthographic projection of the pixel opening on the substrate.
7 . The display panel according to claim 6 , wherein third sides are sides forming the first angle of the first virtual triangle, and fourth sides are sides forming the second angle of the second virtual triangle; in the first direction, one of the third sides in the first virtual triangle is arranged adjacent to one of the fourth sides in the second virtual triangle adjacent to the first virtual triangle so that the first virtual triangle and the second virtual triangle are arranged to form a first sub-pixel group, and a plurality of the first sub-pixel groups are arranged in sequence in the first direction; in the second direction, one of the third sides in the first virtual triangle is disposed adjacent to one of the fourth sides in the second virtual triangle adjacent to the first virtual triangle so that the first virtual triangle and the second virtual triangle are arranged to form a second sub-pixel group, and a plurality of the second sub-pixel groups are arranged in sequence in the second direction; the first sub-patterns and the second sub-patterns in at least part of the plurality of first sub-pixel groups are connected by the connection patterns each located between the third side and the fourth side disposed adjacent to each other in the first sub-pattern group; and/or the first sub-patterns and the second patterns in at least part of the plurality of the second sub-pixel groups are connected by the connection patterns each located between the third side and the fourth side disposed adjacent to each other in the second sub-pattern group.
8 . The display panel according to claim 7 , wherein in the first sub-pixel group or the second sub-pixel group, the first sub-pattern, the second sub-pattern, and the connection pattern form an integrated structure that is S-shaped or Z-shaped.
9 . The display panel according to claim 5 , wherein the plurality of cathode patterns comprise a plurality of cathode electrodes and a plurality of connection electrodes, an orthographic projection of the cathode electrode on the substrate covers an orthographic projection of a corresponding one of the pixel openings on the substrate, and the connection electrode connects adjacent two of the cathode electrodes; and one of the cathode electrodes is connected with an adjacent one of the cathode electrodes through at least one of the connection electrodes.
10 . The display panel according to claim 9 , wherein the plurality of connection electrodes comprise a plurality of first connection electrodes; the cathode electrodes located on the first side in the first virtual triangle are connected by corresponding ones of the first connection electrodes, and the cathode electrodes located on the first side in the first virtual triangle and the first connection electrodes form a first main line; the cathode electrodes located on the second side in the second virtual triangle are connected by corresponding ones of the first connection electrodes, and the cathode electrodes located on the second side in the second virtual triangle and the first connection electrodes form a second main line; a third direction is located between the first direction and the second direction, and the first angle and the second angle are alternately arranged along the third direction; and the first main lines and the second main lines disposed alternately along the third direction are connected by the plurality of first connection electrodes to form a cathode main line.
11 . The display panel according to claim 10 , wherein the cathode main line is jagged or wavy.
12 . The display panel according to claim 10 , wherein the plurality of connection electrodes further comprise a plurality of second connection electrodes; each of the plurality of sub-pixels comprises a corresponding one of the cathode electrodes, the cathode electrodes of the sub-pixels located at the first angle and the second angle each are connected with the adjacent cathode main line by at least one of the second connection electrodes; and an orthographic projection of the second connection electrode on the substrate is located between orthographic projections of the first pattern and the second pattern that are adjacent to each other on the substrate.
13 . The display panel according to claim 12 , wherein the plurality of connection electrodes further comprise a plurality of third connection electrodes; the cathode electrode of the sub-pixel located at the first angle and the cathode electrode of the sub-pixel located at the second angle adjacent to the first angle are connected by a corresponding one of the third connection electrodes; an orthographic projection of the third connection electrode on the substrate is located between orthographic projections of adjacent two of the first sub-patterns on the substrate and between orthographic projections of adjacent two of the second sub-patterns on the substrate; and adjacent two of the cathode main lines are connected by the second connection electrodes and the third connection electrodes.
14 . The display panel according to claim 13 , wherein a width of the second connection electrode is less than a width of the first connection electrode; and/or a width of the third connection electrode is less than a width of the first connection electrode.
15 . The display panel according to claim 1 , wherein at least one of the following conditions is satisfied: a distance between the first pattern and the adjacent cathode pattern is greater than or equal to 6 μm; a distance between adjacent two of the material patterns is greater than or equal to 15 μm; and an inner angle of the material pattern is in a range of 80 to 100 degrees or 125 to 145 degrees.
16 . A display apparatus, comprising a display panel provided with a first display area and a second display area and comprising a plurality of sub-pixels, a transmittance of the first display area being larger than a transmittance of the second display area, and the display panel further comprising: a substrate; a pixel definition layer disposed on a side of the substrate, wherein the pixel definition layer comprises a plurality of pixel definition structures and pixel openings surrounded by the pixel definition structure, and each of the sub-pixels is correspondingly disposed in one of the pixel openings; a cathode patterning material layer disposed in the first display area and on a side of the pixel definition layer away from the substrate, wherein the cathode patterning material layer comprises a plurality of material patterns spaced apart from each other, the plurality of material patterns comprise a plurality of first patterns and a plurality of second patterns, and the first pattern and the second pattern have different shapes; and a cathode layer comprising a plurality of cathode patterns, wherein an orthographic projection of the cathode pattern on the substrate covers an orthographic projection of the pixel opening, corresponding to the cathode pattern, on the substrate, and orthographic projections of the first pattern and the second pattern on the substrate each are spaced apart from the orthographic projection of the pixel opening on the substrate.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present application claims priority to Chinese Patent Application No. 202411567453.2 filed on Nov. 4, 2024, which is incorporated herein by reference in its entirety. TECHNICAL FIELD The present application relates to the field of display technology, and in particular to a display panel and a display apparatus. BACKGROUND With the development of the display technology, the under-screen camera scheme is one of the full-screen solutions. In the under-screen camera scheme, the camera is disposed under the display screen, and when applied, the camera receives the light transmitted through the display screen for imaging. For improving the imaging effect of the under-screen camera, it is necessary to ensure that the display area corresponding to the camera has a relatively large transmittance. SUMMARY In a first aspect, embodiments of the present application provide a display panel provided with a first display area and a second display area and comprising a plurality of sub-pixels. A transmittance of the first display area is larger than a transmittance of the second display area. The display panel further comprises a substrate, a pixel definition layer, a cathode patterning material layer, and a cathode layer. The pixel definition layer is disposed on one side of the substrate and comprises a plurality of pixel definition structures and pixel openings surrounded by the pixel definition structure respectively, and the sub-pixels are respectively disposed in the pixel openings; the cathode patterning material layer is disposed in the first display area and on a side of the pixel definition layer away from the substrate and comprises a plurality of material patterns spaced apart from each other, the plurality of material patterns comprise a plurality of first patterns and a plurality of second patterns, and the first patterns have different shapes from the second patterns; and the cathode layer comprises a plurality of cathode patterns, an orthographic projection of the cathode pattern on the substrate covers an orthographic projection of the corresponding pixel opening on the substrate, and orthographic projections of the first pattern and the second pattern on the substrate each are spaced apart from the orthographic projection of the pixel opening on the substrate. In a second aspect, embodiments of the present application further provide a display apparatus comprising the display panel according to the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate embodiments of the present application or technical solutions in the related art, the drawings required for describing embodiments or the related art will be briefly described. Obviously, the drawings described below are only some embodiments of the present application. For a person skilled in the art, other drawings can also be obtained from these drawings without any inventive effort. FIG. 1 shows a schematic top view of a display panel provided in some embodiments of the present application. FIG. 2 shows a schematic diagram of a first cross-sectional structure of a display panel provided in some embodiments of the present application. FIG. 3 shows a schematic diagram of a second cross-sectional structure of a display panel provided in some embodiments of the present application. FIG. 4 shows a schematic diagram of a third cross-sectional structure of a display panel provided in some embodiments of the present application. FIG. 5 shows a first partial schematic top view of a display panel provided in some embodiments of the present application. FIG. 6 shows a second partial schematic top view of a display panel provided in some embodiments of the present application. FIG. 7 shows a third partial schematic top view of a display panel provided in some embodiments of the present application. FIG. 8 shows a fourth partial schematic top view of a display panel provided in some embodiments of the present application. FIG. 9 shows a fifth partial schematic top view of a display panel provided in some embodiments of the present application. FIG. 10 shows a sixth partial schematic top view of a display panel provided in some embodiments of the present application. FIG. 11 shows a seventh partial schematic top view of a display panel provided in some embodiments of the present application. FIG. 12 shows an eighth partial schematic top view of a display panel provided in some embodiments of the present application. FIG. 13 shows a ninth partial schematic top view of a display panel provided in some embodiments of the present application. FIG. 14 shows a tenth partial schematic top view of a display panel provided in some embodiments of the present application. FIG. 15 shows a schematic view of a display apparatus provided in some embodiments of the present application. DETAILED DESCRIPTION For the convenience of understanding of the present application, the present application will be described