IP Library Granted Patent US 12,532,632
Granted Patent B2
US 12,532,632 · App. 17/755,381 · Granted Jan 20, 2026

Display panel including black matrix layer provided with black matrix opening having transitional connection, and display apparatus

Inventors: Weitao Ma (Beijing, CN); Lu Yang (Beijing, CN); Chengchung Yang (Beijing, CN); Xiangfei He (Beijing, CN)
Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd.; BOE Technology Group Co., Ltd.
H10K59/38H10K59/351H10K59/8792H10K59/122
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Quick Facts
Patent No.
US 12,532,632
App. No.
17/755,381
Granted
Jan 20, 2026
Kind
B2
Abstract

Provided are a display panel and a display apparatus. The display panel includes: a base substrate; a light-emitting layer, the light-emitting layer is located on one side of the base substrate and has a plurality of light-emitting portions; an encapsulation layer, the encapsulation layer is located on the side of the light-emitting layer that faces away from the base substrate; a black matrix layer, wherein the black matrix layer is located at the side of the encapsulation layer that faces away from the light-emitting layer, and has black matrix openings in areas corresponding to the light-emitting portions, the main body shape of each of the black matrix openings is a polygon, and arc-shaped curves are provided at least at corner positions of the polygon, so as to realize a mutual transition connection between various edges of the polygon; and a color film layer.

Claims (37)

1 . A display panel, comprising:

a base substrate;

a light emitting layer, arranged at one side of the base substrate and provided with a plurality of light emitting portions;

an encapsulation layer, arranged at one side, away from the base substrate, of the light emitting layer;

a black matrix layer, arranged at one side, away from the light emitting layer, of the encapsulation layer and provided with a plurality of black matrix openings in regions corresponding to the plurality of light emitting portions, wherein body shapes of the black matrix openings are polygons and have cambered curves at least at corners of the polygons, to realize transitional connections among edges of the polygons, wherein the transitional connections are configured to reduce a diffraction effect of ambient light at the black matrix openings; and

a color filter layer, arranged at one side, away from the encapsulation layer, of the black matrix layer and provided with a plurality of color resist portions in regions corresponding to the black matrix openings;

wherein edges of the black matrix openings, except for the corners, are linear.

2 . The display panel according to claim 1 , wherein the corners of the black matrix openings are circular arcs protruding towards sides, away from centers of the black matrix openings.

3 . The display panel according to claim 2 , wherein the corners of the black matrix openings are the circular arcs with corner points as circle centers, and the corner points are intersection points between extension lines of adjacent edges.

4 . The display panel according to claim 1 , wherein the corners of the black matrix openings are circular arcs dented towards sides, close to centers of the black matrix openings.

5 . The display panel according to claim 4 , wherein the corners of the black matrix openings are the circular arcs with corner points as circle centers, and the corner points are intersection points between extension lines of adjacent edges.

6 . The display panel according to claim 3 , wherein the body shapes of the black matrix openings are quadrilaterals, pentagons, or hexagons; and

radii of the circular arcs are one fifth to three fifths of lengths of shortest edges of the black matrix openings.

7 . The display panel according to claim 2 , wherein

portions, except for the corners, of the edges of the black matrix openings are arc segments protruding towards the sides, away from the centers of the black matrix openings;

portions, except for the corners, of the edges of the black matrix openings are arc segments dented towards the sides, close to the centers of the black matrix openings, and the circular arcs at the corners are directly connected to the arc segments of the edges.

8 . The display panel according to claim 1 , wherein orthographic projections, on the base substrate, of the black matrix openings cover orthographic projections, on the base substrate, of the light emitting portions.

9 . The display panel according to claim 7 , wherein shapes of the light emitting portions are similar with the body shapes of the black matrix openings.

10 . The display panel according to claim 9 , wherein the centers of the black matrix openings overlap centers of the light emitting portions.

11 . The display panel according to claim 9 , wherein a pixel definition layer is arranged between the base substrate and the light emitting layer, the pixel definition layer is provided with a plurality of pixel definition openings, the light emitting portions are arranged in the pixel definition openings, and the shapes of the light emitting portions are consistent with shapes of the pixel definition openings.

12 . The display panel according to claim 9 , wherein the shapes of the light emitting portions are expanded outwards by 2 micrometers-6 micrometers, to obtain the body shapes of the black matrix openings.

13 . The display panel according to claim 1 , wherein a portion, except for the black matrix openings, of the black matrix layer is a black matrix body, and orthographic projections, on the base substrate, of the color resist portions cover a part of the black matrix body on peripheries of the black matrix openings.

14 . The display panel according to claim 1 , wherein a touch layer is arranged between the encapsulation layer and the black matrix layer;

the touch layer comprises a first insulation layer, a first metal layer, a second insulation layer, a second metal layer, and a third insulation layer which are arranged at one side of the encapsulation layer in sequence;

the second metal layer comprises a plurality of first touch electrodes extending in a first direction and a plurality of second touch electrodes extending in a second direction, the first touch electrodes and the second touch electrodes are insulated alternately, each of the first touch electrodes comprises a plurality of first touch sub-electrode blocks which are connected to one another, and each of the second touch electrodes comprises a plurality of second touch sub-electrode blocks which are spaced from one another; and

the first metal layer comprises a plurality of bridging electrodes, and the second touch sub-electrode blocks in the same second direction are electrically connected through the bridging electrodes.

15 . The display panel according to claim 14 , wherein the first touch sub-electrode blocks, the second touch sub-electrode blocks, and the bridging electrodes are provided with meshes, orthographic projections, on the base substrate, of the meshes cover the orthographic projections, on the base substrate, of the light emitting portions; and

an orthographic projection, on the base substrate, of a region, except for the black matrix openings, of the black matrix layer covers a region, except for the meshes, of the first touch sub-electrode blocks, a region, except for the meshes, of the second touch sub-electrode blocks, and a region, except for the meshes, of the bridging electrodes.

16 . The display panel according to claim 14 , wherein one side, away from the black matrix layer, of the color filter layer is provided with a protective layer; and

one side, away from the color filter layer, of the protective layer is provided with a cover plate or a covering filter layer.

17 . A display apparatus, comprising a display panel, wherein the display panel comprises:

a base substrate;

a light emitting layer, arranged at one side of the base substrate and provided with a plurality of light emitting portions;

an encapsulation layer, arranged at one side, away from the base substrate, of the light emitting layer;

a black matrix layer, arranged at one side, away from the light emitting layer, of the encapsulation layer and provided with a plurality of black matrix openings in regions corresponding to the plurality of light emitting portions, wherein body shapes of the black matrix openings are polygons and have cambered curves at least at corners of the polygons, to realize transitional connections among edges of the polygons, wherein the transitional connections are configured to reduce a diffraction effect of ambient light at the black matrix openings; and

a color filter layer, arranged at one side, away from the encapsulation layer, of the black matrix layer and provided with a plurality of color resist portions in regions corresponding to the black matrix openings;

wherein edges of the black matrix openings, except for the corners, are linear.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 27, 2022
From: MA, WEITAO; YANG, LU; YANG, CHENGCHUNG; HE, XIANGFEI
To: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.; BOE TECHNOLOGY GROUP CO., LTD.
Reel/Frame 059811/0008 →
Priority Claims (1)
CN 202010552325.6 · Jun 17, 2020 · national
Continuity (1)
Related Publication 20220376213A1 · Nov 24, 2022
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