IP Library Granted Patent US 10,831,075
Granted Patent B2
US 10,831,075 · App. 16/172,861 · Granted Nov 10, 2020

Liquid crystal display device

Inventors: Norimichi Shirai (Hyogo, JP); Ryutaro Oke (Hyogo, JP); Daisuke Kajita (Hyogo, JP)
Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
G02F1/136286G09G3/3688G09G2300/0426
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Quick Facts
Patent No.
US 10,831,075
App. No.
16/172,861
Granted
Nov 10, 2020
Kind
B2
Abstract

A display device is provided. The display device comprises a plurality of data lines extending in a first direction. The display device also comprises a plurality of gate lines. The plurality of gate lines comprises a first gate line, a second gate line and a third gate line extending in a second direction different than the first direction to form a matrix with the plurality of data lines. The first gate line and the second gate line are separated from each other and are arranged in a same row of the matrix. The display device further comprises a first gate connector line and a second gate connector line, respectively, electrically connecting the first gate line and the second gate line to one or two gate drivers. The first gate connector line and the second gate connector line extend in the first direction.

Claims (30)

1. A display device comprising:

a plurality of data lines extending in a first direction;

a plurality of gate lines comprising a first gate line, a second gate line and a third gate line extending in a second direction different than the first direction to form a matrix with the plurality of data lines, wherein the first gate line and the second gate line are separated from each other and are arranged in a same row of the matrix;

a first gate connector line and a second gate connector line, respectively, electrically connecting the first gate line and the second gate line to one or two gate drivers, wherein the first gate connector line and the second gate connector line extend in the first direction; and

wherein the third gate line is longer than a combination of the first gate line and the second gate line;

wherein the plurality of data lines extend in a display region of the display device, and wherein a plurality of data lead lines electrically connect the plurality of data lines to one or more data drivers arranged in a non-display region of the display device;

wherein the plurality of gate lines and each of the first gate connector line and the second gate connector line extend in the display region, and wherein each of the first gate connector line and the second gate connector line are electrically connected to the one or two gate drivers arranged in the non-display region, via one or more first gate lead lines;

the display device further comprising a third gate connector line extending in the first direction and electrically connecting the third gate line to the one or more gate drivers arranged in the non-display region, via one or more second gate lead lines; and

wherein each of the one or more first gate lead lines branches into a first gate lead branch line and a second gate lead branch line, and wherein the first gate lead branch line is connected to the first gate connector line and the second gate lead branch line is connected to the second gate connector line.

2. The display device according to claim 1 , wherein the first gate lead branch line comprises a first portion and a second portion, and wherein the first portion overlaps, at least partially, the one or more second gate lead lines in plan view.

3. The display device according to claim 2 , wherein the first portion is arranged in a same layer as the plurality of data lines.

4. The display device according to claim 2 , wherein the second portion is arranged in a same layer as the plurality of gate lines.

5. The display device according to claim 1 , wherein the second gate lead branch line is arranged in a same layer as the plurality of gate lines.

6. The display device according to claim 1 , wherein the first gate line and the second gate line are separated at a void in a display region of the display device.

7. The display device according to claim 6 , wherein the void is a region equivalent to a plurality of pixels in the display region.

8. The display device according to claim 1 , wherein the first direction and the second direction are orthogonal to each other.

9. The display device according to claim 1 , wherein the one or two gate drivers comprise a first gate driver and a second gate driver, wherein the first gate connector line connects the first gate line to the first gate driver and the second gate connector line connects the second gate line to the second gate driver.

10. The display device according to claim 1 , wherein the one or two gate drivers comprise a single gate driver configured to send pulses to the first gate line and the second gate line simultaneously.

11. The display device according to claim 1 , wherein each of the first gate line and the second gate line comprises at least one contact point formed therein, and wherein the first gate connector line and the second gate connector line are, respectively, connected to the first gate line and the second gate line at the corresponding at least one contact point.

12. The display device according to claim 1 , wherein the third gate line extends along an entirety of the display region.

13. A display device comprising:

a plurality of data lines extending in a first direction;

a plurality of gate lines comprising a first gate line, a second gate line and a third gate line extending in a second direction different than the first direction to form a matrix with the plurality of data lines, wherein the first gate line and the second gate line are separated from each other and are arranged in a same row of the matrix;

a first gate connector line and a second gate connector line, respectively, electrically connecting the first gate line and the second gate line to one or two gate drivers, wherein the first gate connector line and the second gate connector line extend in the first direction;

wherein the first gate line and the second gate line are separated at a void in a display region of the display device; and

wherein the void is a region equivalent to a plurality of pixels in the display region;

wherein the plurality of data lines extend in a display region of the display device, and wherein a plurality of data lead lines electrically connect the plurality of data lines to one or more data drivers arranged in a non-display region of the display device;

wherein the plurality of gate lines and each of the first gate connector line and the second gate connector line extend in the display region, and wherein each of the first gate connector line and the second gate connector line are electrically connected to the one or two gate drivers arranged in the non-display region, via one or more first gate lead lines;

the display device further comprising a third gate connector line extending in the first direction and electrically connecting the third gate line to the one or more gate drivers arranged in the non-display region, via one or more second gate lead lines; and

wherein each of the one or more first gate lead lines branches into a first gate lead branch line and a second gate lead branch line, and wherein the first gate lead branch line is connected to the first gate connector line and the second gate lead branch line is connected to the second gate connector line.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2023
From: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
To: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Reel/Frame 064292/0775 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 9, 2019
From: SHIRAI, NORIMICHI; OKE, RYUTARO; KAJITA, DAISUKE
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 047946/0910 →
Continuity (1)
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