DISPLAY PANEL AND DISPLAY DEVICE

• US 20200135833A1
• Filed: 01/22/2019
• Published: 04/30/2020
• Est. Priority Date: 10/31/2018
• Status: Active Grant

• Current Assignee: Wuhan Tianma Micro-Electronics Company Limited (Wuhan Donghu New Technology Development Zone Production Promotion Centre)
• Original Assignee: Wuhan Tianma Micro-Electronics Company Limited (Wuhan Donghu New Technology Development Zone Production Promotion Centre)
• Inventors: MA, Yangzhao, HU, Tianqing, CAO, Zhaokeng
• Granted Patent: US 10,741,136 B2
• Time in Patent Office: Days
• CPC Class Codes: G09G 2300/0408 Integration of the drivers onto the display substrate
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2310/0281 Arrangement of scan or data electrode driver circuits at the periphery of a panel not inherent to a split matrix structure
• CPC Class Codes: G09G 2330/06 Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: G09G 3/3258 with pixel circuitry controlling the voltage across the light-emitting element
• CPC Class Codes: G09G 3/3644 with the matrix divided into sections
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence
• CPC Class Codes: G09G 3/3666 with the matrix divided into sections
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals

Abstract

A display panel and a display device are provided. The display panel comprises a display area including data lines and an irregular-shaped edge extending in a column direction, and scanning lines and light-emitting controlling lines extending in a row direction; a non-display area including a first and a second non-display areas disposed at opposite sides of the display area along the row direction; and at least one notch formed by recessing the irregular-shaped edge towards an inside of the display area. The first non-display area includes first shift registers, the second non-display area includes second shift registers and light-emitting controllers, a first and second shift registers are connected to two ends of a scanning line, and a light-emitting controller is connected to a light-emitting controlling line. The first non-display area includes a first sub-non-display area disposed adjacent to the at least one notch and including electrostatic discharge circuits.

Claims

1. A display panel, comprising:

a display area including a plurality of data lines, a plurality of scanning lines, a plurality of light-emitting controlling lines, and an irregular-shaped edge, wherein the scanning lines and the light-emitting controlling lines extend in a row direction, the data lines and the irregular-shaped edge extend in a column direction, and the row direction is perpendicular to the column direction;

a non-display area including a first non-display area and a second non-display area, wherein along the row direction, the first non-display area and the second non-display area are disposed at opposite sides of the display area; and

at least one notch;

wherein the irregular-shaped edge is recessed towards an inside of the display area to form the at least one notch,

the first non-display area includes a plurality of cascaded first shift registers, and a first shift register is electrically connected to one end of a scanning line,

the second non-display area includes a plurality of cascaded second shift registers and a plurality of cascaded light-emitting controllers, a second shift register is electrically connected to another end of the scanning line, and a light-emitting controller is electrically connected to a light-emitting controlling line, and

the first non-display area includes a first sub-non-display area disposed adjacent to the at least one notch in the row direction, and an electrostatic discharge module including a plurality of electrostatic discharge circuits is disposed in the first sub-non-display area.

2. The display panel according to claim 1, wherein:

a first voltage signal line and a second voltage signal line are disposed in the non-display area, and

the first voltage signal line and the second voltage signal line are electrically connected to the electrostatic discharge circuit.

3. The display panel according to claim 2, wherein:

the first non-display area further includes a second sub-non-display area and a third sub-non-display area, wherein along the column direction, the second sub-non-display area and the third sub-non-display area are disposed at opposite sides of the first sub-non-display area;

the first voltage signal line is partially disposed in the first sub-non-display area, partially disposed in the second sub-non-display area, and partially disposed in the third sub-display area; and

the second voltage signal line is partially disposed in the first sub-non-display area, partially disposed in the second sub-non-display area, and partially disposed in the third sub-display area.

4. The display panel according to claim 3, wherein:

the first voltage signal line includes a first portion disposed in the second sub-non-display area, a first winding portion disposed in the first sub-non-display area, and a first extending portion disposed in the third sub-non-display area, wherein the first winding portion has two ends respectively connected to the first portion and the first extending portion, and the first winding portion is electrically connected to the electrostatic discharge circuit; and

the second voltage signal line includes a second portion disposed in the second sub-non-display area, a second winding portion disposed in the first sub-non-display area, and a second extending portion disposed in the third sub-non-display area, wherein the second winding portion has two ends respectively connected to the second portion and the second extending portion, and the second winding portion is electrically connected to the electrostatic discharge circuit.

5. The display panel according to claim 4, wherein:

the electrostatic discharge circuit includes a first voltage signal terminal, a second voltage signal terminal and a protection point connecting terminal;

the first winding portion includes a first sub-portion and a second sub-portion, wherein the first sub-portion has two ends respectively electrically connected to the first portion and the first voltage signal terminal, and the second sub-portion has two ends respectively electrically connected to the first voltage signal terminal and the first extending portion; and

the second winding portion includes a third sub-portion and a fourth sub-portion, wherein the third sub-portion has two ends respectively electrically connected to the second portion and the second voltage signal terminal, and the fourth sub-portion has two ends respectively electrically connected to the second voltage signal terminal and the second extending portion.

6. The display panel according to claim 5, wherein:

the electrostatic discharge circuit further includes a first diode and a second diode connected in series,

wherein a cathode of the first diode is electrically connected to an anode of the second diode and the protection point connecting terminal, and an anode of the first diode is electrically connected to the first voltage signal terminal, and a cathode of the second diode is electrically connected to the second voltage signal terminal.

7. The display panel according to claim 5, wherein:

the electrostatic discharge circuit further includes a first transistor and a second transistor connected in series,

wherein a gate electrode of the first transistor is electrically connected to a source electrode of the first transistor, the source electrode of the first transistor is electrically connected to the first voltage signal terminal, and a drain electrode of the first transistor is electrically connected to both a source electrode of the second transistor and the protection point connecting terminal, and

a gate electrode of the second transistor is electrically connected to a drain electrode of the second transistor, and the drain electrode of the second transistor is electrically connected to the second voltage signal terminal.

8. The display panel according to claim 7, wherein:

the first transistor is an N-type transistor, and the second transistor is a P-type transistor.

9. The display panel according to claim 7, wherein:

the first transistor is a dual-gate N-type transistor, and the second transistor is a dual-gate P-type transistor.

10. The display panel according to claim 7, wherein:

the first transistor and the second transistor each is a dual-gate P-type transistor.

11. The display panel according to claim 5, wherein:

the display area includes a first display area,

wherein along the row direction, the first display area and the first sub-non-display area are disposed adjacent to each other, and

the scanning line in the first display area includes a first end which is an end close to the first sub-non-display area, and the first end of the scanning line is electrically connected to the protection point connecting terminal.

12. The display panel according to claim 2, wherein:

the first voltage signal line is low-level voltage (VGL) signal line, and the second voltage signal line is a high-level voltage (VGH) signal line.

13. The display panel according to claim 1, wherein:

the display panel is a liquid crystal display panel.

14. The display panel according to claim 1, wherein:

the display panel is an organic light-emitting display panel.

15. A display device, comprising:

a display panel, where the display panel comprises;

a display area including a plurality of data lines, a plurality of scanning lines, a plurality of light-emitting controlling lines, and an irregular-shaped edge, wherein the scanning lines and the light-emitting controlling lines extend in a row direction, the data lines and the irregular-shaped edge extend in a column direction, and the row direction is perpendicular to the column direction;

a non-display area including a first non-display area and a second non-display area, wherein along the row direction, the first non-display area and the second non-display area are disposed at opposite sides of the display area; and

at least one notch;

wherein the irregular-shaped edge is recessed towards an inside of the display area to form the at least one notch,

the first non-display area includes a plurality of cascaded first shift registers, and a first shift register is electrically connected to one end of a scanning line,

the second non-display area includes a plurality of cascaded second shift registers and a plurality of cascaded light-emitting controllers, a second shift register is electrically connected to another end of the scanning line, and a light-emitting controller is electrically connected to a light-emitting controlling line, and

the first non-display area includes a first sub-non-display area disposed adjacent to the at least one notch in the row direction, and an electrostatic discharge module including a plurality of electrostatic discharge circuits is disposed in the first sub-non-display area.

16. The display device according to claim 15, wherein:

a first voltage signal line and a second voltage signal line are disposed in the non-display area, and

the first voltage signal line and the second voltage signal line are electrically connected to an electrostatic discharge circuit.

17. The display device according to claim 16, wherein:

the first non-display area further includes a second sub-non-display area and a third sub-non-display area, wherein along the column direction, the second sub-non-display area and the third sub-non-display area are disposed at opposite sides of the first sub-non-display area;

the first voltage signal line is partially disposed in the first sub-non-display area, partially disposed in the second sub-non-display area, and partially disposed in the third sub-display area; and

the second voltage signal line is partially disposed in the first sub-non-display area, partially disposed in the second sub-non-display area, and partially disposed in the third sub-display area.