Display panel and display apparatus

Patent metadata

Field	Value
Publication number	US-12449704-B2
Application number	US-202218014176-A
Country	US
Kind code	B2
Filing date	Feb 28, 2022
Priority date	Feb 28, 2022
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

Disclosed is a display panel including a first substrate which includes a first base substrate and a black matrix layer disposed on the first base substrate, and a second substrate which includes a second base substrate and multiple first signal lines disposed on the second base substrate. The black matrix layer includes multiple first body structures corresponding to the multiple first signal lines and a first compensation structure is provided on one side of at least one first body structure. In a curved surface where the first substrate is located, the first body structure and the first compensation structure extend along the second direction and are arranged along the fourth direction. An orthographic projection of any one of the first signal lines on the second substrate is located within a range of orthographic projections of a corresponding first body structure and a first compensation structure on the second substrate.

First claim

The invention claimed is:

1. A display panel, comprising: a first substrate and a second substrate disposed oppositely to each other, wherein;
the first substrate and the second substrate are of a curved surface structure;
the first substrate comprises a first base substrate and a black matrix layer disposed on a side of the first base substrate closest to the second substrate;
the second substrate comprises a second base substrate and multiple first signal lines disposed on a side of the second base substrate closest to the first substrate, wherein the multiple first signal lines extend along a second direction and are arranged along a fourth direction, and the fourth direction intersects with the second direction in a curved surface where the second substrate is located;
the black matrix layer comprises multiple first body structures corresponding to the multiple first signal lines, and a first compensation structure is provided on one side of at least one first body structure of the multiple first body structures; in a curved surface where the first substrate is located, the at least one first body structure and the first compensation structure extend along the second direction and are arranged along the fourth direction, and the fourth direction intersects with the second direction in the curved surface where the first substrate is located;
an orthographic projection of any one of the first signal lines on the second substrate is located within a range of orthographic projections of a corresponding first body structure and a corresponding first compensation structure on the second substrate;
the display panel comprises a first side and a second side disposed oppositely to each other along the fourth direction, on a curved surface where the display panel is located, between a first center line and the first side, from the first compensation structure at a position closest to a third center line to the first compensation structure at a position farthest from the third center line, sizes of first compensation structures along the fourth direction gradually decrease; between the first center line and the second side, from the first compensation structure at a position closest to a fourth center line to the first compensation structure at a position farthest from the fourth center line, sizes of first compensation structures along the fourth direction gradually decrease; and
the third center line is a center line of the display panel extending along the second direction between the first center line and the first side, and the fourth center line is a center line of the display panel extending along the second direction between the first center line and the second side.

2. The display panel according to claim 1 , wherein the display panel is bent toward a side of the second substrate farthest from the first substrate, and in the fourth direction, for any set of the first body structure and the first compensation structure, the first compensation structure is located between the first body structure and a first center line; or, the display panel is bent toward a side of the first substrate farthest from the second substrate, and in the fourth direction, for any set of the first body structure and the first compensation structure, the first body structure is located between the first compensation structure and a first center line; wherein the first center line is a center line of the display panel extending along the second direction.

3. The display panel according to claim 1 , wherein, in the curved surface where the display panel is located, the display panel is divided into multiple regions along the fourth direction, the multiple regions comprise one first region and two k-th regions, wherein 2≤k≤N, and N is a positive integer greater than or equal to 2, and two regions corresponding to any value of k are symmetrically disposed with respect to the first center line along the fourth direction;
sizes of multiple first compensation structures located in the first region along the fourth direction are the same, and sizes of multiple first compensation structures located in regions corresponding to a same value of k along the fourth direction are the same.

4. The display panel according to claim 3 , wherein N=3, the multiple regions comprise one first region, two second regions, and two third regions, the first region is disposed symmetrically with respect to the first center line along the fourth direction, the two second regions are disposed symmetrically with respect to the first center line along the fourth direction, and the two third regions are disposed symmetrically with respect to the first center line along the fourth direction;
in the display panel located between the first center line and the first side, a first region and a third region are disposed symmetrically with respect to the third center line along the fourth direction, and a second region is disposed symmetrically with respect to the third center line along the fourth direction; in the display panel located between the first center line and the second side, a first region and a third region are disposed symmetrically with respect to the fourth center line along the fourth direction, and a second region is disposed symmetrically with respect to the fourth center line along the fourth direction.

5. The display panel according to claim 1 , wherein in a curved surface where the display panel is located, each of two sides of a first center line is divided into N-2 concentric annular regions; a region located at a center position inside an annular region is a first region, and a region located at a periphery of the annular region is an N-th region, and there are two J-th regions for any J-th region on the display panel, a value of Jis 1 to N; the two J-th regions are located on both sides of the first center line and the two J-th regions are symmetrical with respect to the first center line in the fourth direction W; any J-th region is disposed symmetrically with respect to a second center line, the second center line is a center line of the display panel extending along the fourth direction, wherein N is a positive integer greater than 2 and J is equal to N;
sizes of multiple first compensation structures located at a position of the first region along the fourth direction are the same, and sizes of multiple first compensation structures located in regions corresponding to a same value of J along the fourth direction are the same.

6. The display panel according to claim 5 , wherein N=3, multiple regions comprise two first regions, two second regions, and two third regions; wherein a second region is an annular region, a first region is located at a center position of the annular region of the second region, and a third region is located at a peripheral region of the annular region of the second region;
or,
wherein on the curved surface where the display panel is located, on a same side of the first center line, from the first compensation structure in a region closest to a center position of an annular region to the first compensation structure in a region farthest from a center position of an annular region, sizes of first compensation structures along the fourth direction gradually decrease.

7. The display panel according to claim 1 , wherein in a curved surface where the display panel is located, a size of the first compensation structure along the fourth direction is proportional to a size of the first base substrate and the second base substrate along a bending direction.

8. The display panel according to claim 7 , wherein in a case where all of a size of the first substrate and the second substrate along the second direction, a size of the first substrate and the second substrate along the four

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Technology Dev Co Ltd

Inventors

• Li Wei
• Zhang Xiaofeng
• Chen Yanqing
• Zhang Zhao
• Li Biqi

Classifications

• G02F2201/56

  Substrates having a particular shape, e.g. non-rectangular · CPC title

• G02F1/133514

  Colour filters · CPC title

• G02F1/133512

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• G02F1/1333

  Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence) · CPC title

• G02F1/1335

  Structural association of cells with optical devices, e.g. polarisers or reflectors · CPC title