IP Library Granted Patent US 11,751,450
Granted Patent B2
US 11,751,450 · App. 17/418,519 · Granted Sep 5, 2023

Display panel and display device

Inventors: Tinghua Shang (Beijing, CN); Yi Zhang (Beijing, CN); Tingliang Liu (Beijing, CN); Shun Zhang (Beijing, CN); Huijuan Yang (Beijing, CN); Linhong Han (Beijing, CN)
Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd.; BOE Technology Group Co., Ltd.
H10K59/131G09G3/3233G09G2300/0426G09G2300/0819G09G2300/0842G09G2300/0861G09G2310/08H10K59/126
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Quick Facts
Patent No.
US 11,751,450
App. No.
17/418,519
Granted
Sep 5, 2023
Kind
B2
Abstract

Disclosed are a display panel and a display device. The display panel includes: a base substrate and a plurality of sub-pixels located on the base substrate; and each sub-pixel includes: a semiconductor layer located on the base substrate and including a first active layer of an initialization transistor, a second active layer of a reset transistor and a third active layer of a data writing transistor; a first conductive layer located on a side of the semiconductor layer and including a data signal line extending in a first direction; and a second conductive layer located on the base substrate and including a drive gate of a drive transistor; and an orthographic projection of the second active layer on the base substrate is located between an orthographic projection of the first active layer on the base substrate and an orthographic projection of the data signal line on the base substrate.

Claims (55)

1. A display panel, comprising:

a base substrate; and

a plurality of sub-pixels located on the base substrate;

wherein each of the plurality of sub-pixels comprises:

a semiconductor layer located on the base substrate and comprising:

a first active layer of an initialization transistor,

a second active layer of a reset transistor, and

a third active layer of a data writing transistor;

a first conductive layer located on a side, facing away from the base substrate, of the semiconductor layer and comprising: a data signal line extending in a first direction; and

a second conductive layer located on the base substrate and comprising: a drive gate of a drive transistor;

wherein the drive gate is electrically connected to a first conductive region of the first active layer;

the data signal line is electrically connected to a first conductive region of the third active layer; and

an orthographic projection of the second active layer on the base substrate is located between an orthographic projection of the first active layer on the base substrate and an orthographic projection of the data signal line on the base substrate.

2. The display panel according to claim 1 , wherein an orthographic projection of a channel region of the second active layer on the base substrate is located between an orthographic projection of a channel region of the first active layer on the base substrate and the orthographic projection of the data signal line on the base substrate.

3. The display panel according to claim 1 , further comprising: a third conductive layer located on the base substrate, wherein

the third conductive layer comprises: an initialization signal line extending in a second direction; and the second direction is intersected with the first direction;

the initialization signal line is electrically connected with a first conductive region of the second active layer; and

the first conductive region of the second active layer is located at an end, facing away from the first active layer, of the second active layer.

4. The display panel according to claim 3 , further comprising: a shielding structure located on the base substrate, wherein

an orthographic projection of the shielding structure on the base substrate is located between an orthographic projection of the first conductive region of the first active layer on the base substrate and an orthographic projection of the first conductive region of the third active layer on the base substrate.

5. The display panel according to claim 4 , further comprising: a fourth conductive layer located on a side, facing away from the base substrate, of the semiconductor layer, wherein

the fourth conductive layer comprises: a fixed potential signal line extending in the first direction; and

the shielding structure is electrically connected to the fixed potential signal line.

6. The display panel according to claim 4 , wherein the shielding structure is disposed on the same layer as the initialization signal line.

7. The display panel according to claim 6 , wherein the third conductive layer further comprises: a conductive connection structure connected to the shielding structure; and

a fixed potential signal line is electrically connected to the shielding structure through the conductive connection structure.

8. The display panel according to claim 5 , wherein the fourth conductive layer further comprises: a first conductive connection part, a second conductive connection part and a third conductive connection part which are insulated from one another;

the drive gate is electrically connected to the first conductive region of the first active layer through the first conductive connection part;

the data signal line is electrically connected to the first conductive region of the third active layer through the second conductive connection part; and

the initialization signal line is electrically connected to the first conductive region of the second active layer through the third conductive connection part.

9. The display panel according to claim 1 , wherein the first active layer comprises: a first bending part and a second bending part;

one end of the first bending part is the first conductive region of the first active layer, and the other end of the first bending part is connected to the second bending part and bent towards one side facing away from the data signal line; and

the second bending part is n-shaped, one end of the second bending part is connected to the first bending part, and the other end of the second bending part is connected to the second active layer.

10. The display panel according to claim 3 , wherein the second active layer comprises: a first branch part and a second branch part;

one end of the first branch part is the first conductive region of the second active layer, and the other end of the first branch part is connected to the second branch part; and

the first branch part extends in the second direction, and the second branch part extends in the first direction.

11. The display panel according to claim 1 , wherein the third active layer comprises:

a conductive protrusion part and a conductive extension part extending in the first direction; and

one end of the conductive protrusion part is the first conductive region of the third active layer, and the other end of the conductive protrusion part is connected to the conductive extension part.

12. The display panel according to claim 1 , wherein the plurality of sub-pixels in the display panel are arrayed in the first direction and a second direction;

the display panel comprises a plurality of data signal lines, and the data signal lines are divided into first data signal lines and second data signal lines; and

in each column of the sub-pixels, the sub-pixels of odd rows share one first data signal line, and the sub-pixels of even rows share one second data signal line.

13. A display device, comprising: a display panel, wherein the display panel comprises:

a base substrate; and

a plurality of sub-pixels located on the base substrate;

wherein each of the plurality of sub-pixels comprises:

a semiconductor layer located on the base substrate and comprising:

a first active layer of an initialization transistor,

a second active layer of a reset transistor, and

a third active layer of a data writing transistor;

a first conductive layer located on a side, facing away from the base substrate, of the semiconductor layer and comprising: a data signal line extending in a first direction; and

a second conductive layer located on the base substrate and comprising: a drive gate of a drive transistor;

wherein the drive gate is electrically connected to a first conductive region of the first active layer;

the data signal line is electrically connected to a first conductive region of the third active layer; and

an orthographic projection of the second active layer on the base substrate is located between an orthographic projection of the first active layer on the base substrate and an orthographic projection of the data signal line on the base substrate.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 25, 2021
From: SHANG, TINGHUA; ZHANG, YI; LIU, TINGLIANG; ZHANG, SHUN; YANG, HUIJUAN; HAN, LINHONG
To: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.; BOE TECHNOLOGY GROUP CO., LTD.
Reel/Frame 056671/0164 →
Continuity (1)
Related Publication 20220310751A1 · Sep 29, 2022