LEAD ASSEMBLY AND DISPLAY DEVICE

• US 20200136281A1
• Filed: 11/19/2018
• Published: 04/30/2020
• Est. Priority Date: 10/30/2018
• Status: Abandoned Application

• Current Assignee: Chongqing HKC Optoelectronics Technology Co., Ltd. (Shenzhen Huike Investment Holding Co., Ltd.), HKC Corporation Limited (Shenzhen Huike Investment Holding Co., Ltd.)
• Original Assignee: Chongqing HKC Optoelectronics Technology Co., Ltd. (Shenzhen Huike Investment Holding Co., Ltd.), HKC Corporation Limited (Shenzhen Huike Investment Holding Co., Ltd.)
• Inventors: LI, Wenxin
• Application Number:
  US16/313,406
• Publication Number:
  US 20200136281A1
• Time in Patent Office: Days
• CPC Class Codes: B26D 1/04 having a linearly-movable cutting member B26D1/46, B26D1/547 take precedence
• CPC Class Codes: C03B 33/074 Glass products comprising an outer layer or surface coating of non-glass material
• CPC Class Codes: G02F 1/1309 Repairing; Testing
• CPC Class Codes: G02F 1/13452 Conductors connecting driver circuitry and terminals of panels
• CPC Class Codes: G02F 1/13458 Terminal pads
• CPC Class Codes: H01R 12/52 connecting to other rigid printed circuits or like structures
• CPC Class Codes: H01R 12/55 characterised by the terminals
• CPC Class Codes: H01R 2107/00 Four or more poles
• CPC Class Codes: H01R 43/16 for manufacturing contact members, e.g. by punching and by bending
• CPC Class Codes: H05K 1/117 Pads along the edge of rigid circuit boards, e.g. for pluggable connectors
• CPC Class Codes: H05K 1/144 Stacked arrangements of planar printed circuit boards
• CPC Class Codes: H05K 2201/10128 Display
• CPC Class Codes: Y02P 40/57 Improving the yield, e-g- reduction of reject rates

Abstract

A lead assembly and a display panel are disclosed. The lead assembly includes a plurality of leads disposed in a row or in a column, each lead includes a first connection portion, a second connection portion, and a third connection portion that are sequentially connected, a cross sectional area of the second connection portion is smaller than cross sectional areas of the first connection portion and the third connection portion, so that when a cutting line cuts the second connection portion, burrs generated at ends of the first connection portion and the third connection portion can be reduced, and further, defect of a scanning line generated when the first connection portion is connected to a resource driver is alleviated.

Claims

1. A lead assembly, comprising a plurality of leads disposed in a row or in a column, wherein each lead comprises:

a first connection portion, wherein one end of the first connection portion is configured to electrically connect to a panel;

a second connection portion, wherein one end of the second connection portion is connected to the other end of the first connection portion; and

a third connection portion, wherein one end of the third connection portion is connected to the other end of the second connection portion;

wherein a cross sectional area of the second connection portion is smaller than a cross sectional area of the first connection portion, and is smaller than a cross sectional area of the third connection portion.

2. The lead assembly according to claim 1, wherein an end face of the first connection portion in connection with the second connection portion is an arc face, and an end face of the third connection portion in connection with the second connection portion is an arc face.

3. The lead assembly according to claim 2, wherein the end face of the first connection portion in connection with the second connection portion is a circular arc face, and the end face of the third connection portion in connection with the second connection portion is a circular arc face.

4. The lead assembly according to claim 1, wherein an end face of the first connection portion in connection with the second connection portion is a flat face, and an end face of the third connection portion in connection with the second connection portion is a flat face.

5. The lead assembly according to claim 2, wherein sections of the first connection portion and the third connection portion in a length direction are oval.

6. The lead assembly according to claim 1, wherein an end face of the first connection portion in connection with the second connection portion is an arc face, and an end face of the third connection portion in connection with the second connection portion is a flat face.

7. The lead assembly according to claim 1, wherein an end face of the first connection portion in connection with the second connection portion is a flat face, and an end face of the third connection portion in connection with the second connection portion is an arc face.

8. The lead assembly according to claim 1, wherein the first connection portion, the second connection portion, and the third connection portion are formed as a whole.

9. The lead assembly according to claim 8, wherein the first connection portion, the second connection portion, and the third connection portion are formed as a whole and made of a copper material.

10. The lead assembly according to claim 1, wherein a shape of the second connection portion is a strip shape having a consistent width.

11. The lead assembly according to claim 1, wherein a shape of the second connection portion is a taper shape having a width gradually increasing from the first connection portion to the third connection portion.

12. The lead assembly according to claim 1, wherein a length of the second connection portion matches a width of a cutting line configured for cutting the leads.

13. The lead assembly according to claim 1, wherein the lead assembly further comprises a connection line electrically connected to each of the leads.

14. The lead assembly according to claim 13, wherein the connection line is perpendicularly connected to the leads.

15. The lead assembly according to claim 13, wherein the connection line is fastened to each of the leads through soldering.

16. The lead assembly according to claim 13, wherein the connection line is connected to an end of the third connection portion away from the second connection portion.

17. The lead assembly according to claim 1, wherein the first connection portion, the second connection portion, and the third connection portion are coaxially disposed.

18. A lead assembly, comprising a plurality of leads disposed in a row or in a column, wherein each lead comprises:

a first connection portion, wherein one end of the first connection portion is configured to electrically connect to a panel;

a second connection portion, wherein one end of the second connection portion is connected to the other end of the first connection portion; and

a third connection portion, wherein one end of the third connection portion is connected to the other end of the second connection portion;

wherein a cross sectional area of the second connection portion is smaller than a cross sectional area of the first connection portion, and is smaller than a cross sectional area of the third connection portion, an end face of the first connection portion in connection with the second connection portion is an arc face, and the first connection portion, the second connection portion, and the third connection portion are formed as a whole.

19. A display device, comprising a panel and a source driver, wherein the panel is connected to the resource driver by using a signal connection line, the signal connection line is formed by a first connection portion after a lead assembly is cut, the lead assembly comprises a plurality of leads disposed in a row or in a column, and each lead comprises:

a first connection portion, wherein one end of the first connection portion is configured to electrically connect to the panel;

a second connection portion, wherein one end of the second connection portion is connected to the other end of the first connection portion; and

a third connection portion, wherein one end of the third connection portion is connected to the other end of the second connection portion;

wherein a cross sectional area of the second connection portion is smaller than a cross sectional area of the first connection portion, and is smaller than a cross sectional area of the third connection portion.