Flexible display substrate and display device

• US 10,453,870 B2
• Filed: 11/13/2017
• Issued: 10/22/2019
• Est. Priority Date: 04/21/2017
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd., Chengdu BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Liu, Tingliang, Cao, Zhonglin, Zang, Pengcheng, Xu, Yuanjie, Wang, Yang
• Primary Examiner(s): Nguyen, Duy T
• Assistant Examiner(s): Jang, Bo B
• Application Number:
  US15/810,815
• Publication Number:
  US 20180308872A1
• Time in Patent Office: 708 Days
• Field of Search: None
• CPC Class Codes: G09F 9/301 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
• CPC Class Codes: H01L 25/18 the devices being of types provided for in two or more different subgroups of the same main group of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N
• CPC Class Codes: H01L 27/1218 with a particular composition or structure of the substrate
• CPC Class Codes: H01L 27/124 with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits wiring structures per se H01L23/52
• CPC Class Codes: H01L 27/1244 for preventing breakage, peeling or short circuiting

Abstract

A flexible display substrate and a display device are disclosed. The flexible display substrate includes a plurality of signal lines located in a display area; a driver chip bound in a peripheral area; a plurality of lead wires configured to connect the driver chip with the signal lines, where both ends of each signal line correspond respectively to at least one lead wire. Both ends of a signal line can be arranged as such to correspond respectively to at least one lead wire, that is, the same signal line can correspond to at least two lead wires extended from an output end of the driver chip.

Claims

1. A flexible display substrate, comprising:

a plurality of signal lines located in a display area;

a driver chip bound in a peripheral area;

a plurality of lead wires configured to connect the driver chip with the signal lines, wherein;

both ends of each of the signal lines correspond respectively to at least one of the lead wires, the lead wire has one end connected with a corresponding pin of the driver chip, and the other end connected with one end of a corresponding signal line;

wherein each of the signal lines corresponds to two of the lead wires, which are a first lead wire and a second lead wire respectively; and

the flexible display substrate further comprises a plurality of connecting wires, wherein;

each of the signal lines corresponds to one of the connecting wires, the connecting wire has one end connected respectively with one end of the signal line and one end of the first lead wire, and the other end connected respectively with the other end of the signal line and one end of the second lead wire.

2. The flexible display substrate according to claim 1, wherein the first lead wire, the second lead wire, and the connecting wires are arranged at the same layer.

3. The flexible display substrate according to claim 1, further comprises a plurality of pixel elements arranged in a matrix;

each row and/or each column of the pixel elements corresponds to two of the signal lines; and

ends of the two signal lines on the same side are connected with the same one of the lead wires.

4. The flexible display substrate according to claim 3, wherein the two signal lines corresponding to each row of the pixel elements are located respectively above and below the corresponding row of the pixel elements;

and

the two signal lines corresponding to each column of the pixel elements are located respectively on the left and the right to the corresponding column of the pixel elements.

5. The flexible display substrate according to claim 1, further comprises a plurality of pixel elements arranged in a matrix;

the signal lines are U-shaped signal lines, and each row and/or each column of the pixel elements corresponds to one of the U-shaped signal lines; and

both ends of each of the U-shaped signal lines correspond respectively to third lead wire and fourth lead wire; and

one end of each of the U-shaped signal lines is connected with the third lead wire, and the other end of each of the U-shaped signal lines is connected with the fourth lead wire; and

the third lead wire and the fourth lead wire are located in a peripheral area on the same side to which both ends of each of the U-shaped signal lines.

6. The flexible display substrate according to claim 5, wherein the third lead wire and the fourth lead wire are arranged at different layers.

7. The flexible display substrate according to claim 5, further comprises a plurality of common connecting wires;

each of the U-shape signal lines corresponds to one of the common connecting wires; and

one end of the common connecting wire is connected with a corresponding pin of the driver chip, and the other end of the common connecting wire is connected respectively with the third lead wire and the fourth lead wire corresponding to the U-shaped signal line.

8. The flexible display substrate according to claim 5, wherein each of the U-shaped signal lines comprises a bottom component, and two parallel components perpendicular to and connected with the bottom component;

the bottom component of the U-shaped signal line corresponding to each row of the pixel elements is perpendicular to the row direction of the pixel elements, and the two parallel components are located respectively above and below the corresponding row of the pixel elements; and

the bottom component of the U-shaped signal line corresponding to each column of the pixel elements is perpendicular to the column direction of the pixel elements, and the two parallel components are located respectively on the left and the right to the corresponding column of the pixel elements.

9. The flexible display substrate according to claim 1, wherein the signal lines are gate lines or data lines.

10. The flexible display substrate according to claim 9, wherein the lead wires are arranged at the same layer as the gate lines or the data lines.

11. A display device, comprising a flexible display substrate, wherein the flexible display substrate comprises:

a plurality of signal lines located in a display area;

a driver chip bound in a peripheral area;

a plurality of lead wires configured to connect the driver chip with the signal lines, wherein;

both ends of each of the signal lines correspond respectively to at least one of the lead wires, the lead wire has one end connected with a corresponding pin of the driver chip, and the other end connected with one end of a corresponding signal line;

wherein each of the signal lines corresponds to two of the lead wires, which are a first lead wire and a second lead wire respectively; and

the flexible display substrate further comprises a plurality of connecting wires, wherein;

each of the signal lines corresponds to one of the connecting wires, the connecting wire has one end connected respectively with one end of the signal line and one end of the first lead wire, and the other end connected respectively with the other end of the signal line and one end of the second lead wire.