IP Library Granted Patent US 11,398,503
Granted Patent B2
US 11,398,503 · App. 16/774,792 · Granted Jul 26, 2022

Display device

Inventor: Teruhisa Nakagawa (Hyogo, JP)
Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
H01L27/124G02F1/136286G02F2201/123G09G3/3677G09G3/3688G09G2300/0426G09G2310/0202G09G2320/0233
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Quick Facts
Patent No.
US 11,398,503
App. No.
16/774,792
Granted
Jul 26, 2022
Kind
B2
Abstract

A display device, comprising: a first pixel row including a first pixel electrode and a second pixel electrode that are arranged in a first direction; a second pixel row; a third pixel row; a first source line and a second source line that extend in a second direction between the first pixel electrode and the second pixel electrode; a first gate line that extends in the first direction between the first pixel row and the second pixel row; a second gate line that extends in the first direction between the second pixel row and the third pixel row; a first end connection wiring that connects the first gate line to the second gate line at an end portion of the second pixel row; and one or more first cross connection wirings that transverse the second pixel row and connect the first gate line to the second gate line.

Claims (81)

1. A display device, comprising:

a first pixel row including a first pixel electrode and a second pixel electrode that are arranged in a first direction;

a second pixel row including a third pixel electrode and a fourth pixel electrode that are arranged in the first direction, the second pixel row being adjacent to the first pixel row in a second direction that crosses the first direction;

a third pixel row including a fifth pixel electrode and a sixth pixel electrode that are arranged in the first direction, the third pixel row being adjacent to the second pixel row in the second direction;

a first source line and a second source line that extend in the second direction between the first pixel electrode and the second pixel electrode, between the third pixel electrode and the fourth pixel electrode, and between the fifth pixel electrode and the sixth pixel electrode;

a first gate line that extends in the first direction between the first pixel row and the second pixel row;

a second gate line that extends in the first direction between the second pixel row and the third pixel row;

a first end connection wiring that connects the first gate line to the second gate line at an end portion of the second pixel row; and

one or more first cross connection wirings that traverse the second pixel row and connect the first gate line to the second gate line,

wherein at least a portion of the first cross connection wirings is disposed between the first source line and the second source line in plan view.

2. The display device according to claim 1 , further comprising:

a fourth pixel row including a seventh pixel electrode and an eighth pixel electrode that are arranged in the first direction;

a fifth pixel row including a ninth pixel electrode and a tenth pixel electrode that are arranged in the first direction;

a third gate line that extends in the first direction between the third pixel row and the fourth pixel row;

a fourth gate line that extends in the first direction between the fourth pixel row and the fifth pixel row;

a second end connection wiring that connects the third gate line to the fourth gate line at an end portion of the fourth pixel row; and

one or more second cross connection wirings that traverse the fourth pixel row and connect the third gate line to the fourth gate line; wherein

a number of the first cross connection wirings is equal to a number of the second cross connection wirings.

3. The display device according to claim 1 , further comprising:

a plurality of pixel rows that includes the first pixel row, the second pixel row, and the third pixel row, the plurality of pixel rows running parallel to each other in the first direction,

a plurality of gate lines that includes the first gate line and the second gate line, the plurality of gate lines running parallel to each other in the first direction and extending between two adjacent pixel rows of the plurality of pixel rows, and

a plurality of cross connection wirings that includes the first cross connection wirings, the plurality of cross connection wiring traversing one of the plurality of pixel rows and connecting two gate lines that are adjacent in the second direction to each other.

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

the plurality of pixel rows alternately includes

a pixel row that overlaps with the plurality of cross connection wirings in plan view, and

a pixel row that does not overlap with the plurality of cross connection wirings in plan view.

5. The display device according to claim 3 , wherein

numbers of the cross connection wirings connected to each of the plurality of gate lines are equal.

6. The display device according to claim 3 , further comprising:

a first pixel column including the first pixel electrode, the third pixel electrode, and the fifth pixel electrode that are arranged in the second direction; and

a second pixel column including the second pixel electrode, the fourth pixel electrode, and the sixth pixel electrode that are arranged in the second direction, the second pixel column being adjacent to the first pixel column in the first direction; wherein

a number of the cross connection wirings that overlap with the first pixel column in plan view is equal to a number of the cross connection wirings that overlap with the second pixel column in plan view.

7. The display device according to claim 3 , further comprising:

a first pixel column including the first pixel electrode, the third pixel electrode, and the fifth pixel electrode that are arranged in the second direction;

a second pixel column including the second pixel electrode, the fourth pixel electrode, and the sixth pixel electrode that are arranged in the second direction, the second pixel column being adjacent to the first pixel column in the first direction; and

a third pixel column including a plurality of pixel electrodes that are arranged in the second direction, the third pixel column being adjacent to the second pixel column in the first direction; wherein

a number of the cross connection wirings disposed between the first pixel column and the second pixel column is equal to a number of the cross connection wirings disposed between the second pixel column and the third pixel column.

8. The display device according to claim 1 , wherein:

the first source line is disposed at a position closer to the first pixel electrode than the second source line, and

the second source line is disposed at a position closer to the second pixel electrode than the first source line.

9. A display device, comprising:

a first pixel row including a first pixel electrode and a second pixel electrode that are arranged in a first direction;

a second pixel row including a third pixel electrode and a fourth pixel electrode that are arranged in the first direction, the second pixel row being adjacent to the first pixel row in a second direction that crosses the first direction;

a third pixel row including a fifth pixel electrode and a sixth pixel electrode that are arranged in the first direction, the third pixel row being adjacent to the second pixel row in the second direction;

a first source line and a second source line that extend in the second direction between the first pixel electrode and the second pixel electrode, between the third pixel electrode and the fourth pixel electrode, and between the fifth pixel electrode and the sixth pixel electrode;

a first gate line that extends in the first direction between the first pixel row and the second pixel row;

a second gate line that extends in the first direction between the second pixel row and the third pixel row;

a first end connection wiring that connects the first gate line to the second gate line at an end portion of the second pixel row; and

one or more first cross connection wirings that traverse the second pixel row and connect the first gate line to the second gate line,

wherein the first cross connection wiring overlaps with the third pixel electrode in plan view,

wherein the third pixel electrode includes

a first region extending at a slope of a first angle with respect to the first direction, and

a second region extending at a slope of a second angle with respect to the first direction, the second angle being different from the first angle, and

wherein the first cross connection wirings overlap with a boundary between the first region and the second region in plan view.

10. A display device, comprising:

a first pixel row including a first pixel electrode and a second pixel electrode that are arranged in a first direction;

a second pixel row including a third pixel electrode and a fourth pixel electrode that are arranged in the first direction, the second pixel row being adjacent to the first pixel row in a second direction that crosses the first direction;

a third pixel row including a fifth pixel electrode and a sixth pixel electrode that are arranged in the first direction, the third pixel row being adjacent to the second pixel row in the second direction;

a first source line and a second source line that extend in the second direction between the first pixel electrode and the second pixel electrode, between the third pixel electrode and the fourth pixel electrode, and between the fifth pixel electrode and the sixth pixel electrode;

a first gate line that extends in the first direction between the first pixel row and the second pixel row;

a second gate line that extends in the first direction between the second pixel row and the third pixel row;

a first end connection wiring that connects the first gate line to the second gate line at an end portion of the second pixel row; and

one or more first cross connection wirings that traverse the second pixel row and connect the first gate line to the second gate line,

wherein the first cross connection wiring overlaps with the third pixel electrode in plan view,

wherein the display device further comprises:

a plurality of pixel rows that includes the first pixel row, the second pixel row, and the third pixel row, the plurality of pixel rows running parallel to each other in the first direction;

a plurality of gate lines that includes the first gate line and the second gate line, the plurality of gate lines running parallel to each other in the first direction and extending between two adjacent pixel rows of the plurality of pixel rows; and

a plurality of cross connection wirings that includes the first cross connection wirings, the plurality of cross connection wiring traversing one of the plurality of pixel rows and connecting two gate lines that are adjacent in the second direction to each other; and

wherein the plurality of pixel rows alternately include

a pixel row that overlaps with the plurality of cross connection wirings in plan view, and

a pixel row that does not overlap with the plurality of cross connection wirings in plan view.

11. The display device according to claim 10 , wherein numbers of the cross connection wirings connected to each of the plurality of gate lines are equal.

12. The display device according to claim 10 , further comprising:

a first pixel column including the first pixel electrode, the third pixel electrode, and the fifth pixel electrode that are arranged in the second direction; and

a second pixel column including the second pixel electrode, the fourth pixel electrode, and the sixth pixel electrode that are arranged in the second direction, the second pixel column being adjacent to the first pixel column in the first direction; wherein

a number of the cross connection wirings that overlap with the first pixel column in plan view is equal to a number of the cross connection wirings that overlap with the second pixel column in plan view.

13. The display device according to claim 10 , further comprising:

a first pixel column including the first pixel electrode, the third pixel electrode, and the fifth pixel electrode that are arranged in the second direction;

a second pixel column including the second pixel electrode, the fourth pixel electrode, and the sixth pixel electrode that are arranged in the second direction, the second pixel column being adjacent to the first pixel column in the first direction; and

a third pixel column including a plurality of pixel electrodes that are arranged in the second direction, the third pixel column being adjacent to the second pixel column in the first direction; wherein

a number of the cross connection wirings disposed between the first pixel column and the second pixel column is equal to a number of the cross connection wirings disposed between the second pixel column and the third pixel column.

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 Mar 9, 2020
From: NAKAGAWA, TERUHISA
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 052047/0380 →
Priority Claims (1)
JP JP2019-063283 · Mar 28, 2019 · national
Continuity (1)
Related Publication 20200312884A1 · Oct 1, 2020