DISPLAY DEVICE

• US 20170299926A1
• Filed: 06/29/2017
• Published: 10/19/2017
• Est. Priority Date: 10/18/2013
• Status: Active Grant

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: TAKEDA, Arihiro, TAGO, Keiji, MIYAZAKI, Kayoko, MORI, Ayumi
• Granted Patent: US 10,268,088 B2
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/133345 Insulating layers G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/133707 Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G02F 1/134336 Matrix
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G02F 1/1368 in which the switching element is a three-electrode device G02F1/136277 takes precedence
• CPC Class Codes: G02F 2201/121 common or background
• CPC Class Codes: G02F 2201/123 pixel
• CPC Class Codes: G02F 2201/52 RGB geometrical arrangements
• CPC Class Codes: H10K 59/351 comprising more than three subpixels, e.g. red-green-blue-white [RGBW]

Abstract

A display device includes a first color pixel, a second color pixel neighboring the first color pixel in a first direction, a third color pixel neighboring the second color pixel in the first direction, a fourth color pixel neighboring the first color pixel in a second direction, a fifth color pixel neighboring the second color pixel in the second direction, and a sixth color pixel neighboring the third color pixel in the second direction, wherein each of the first color pixel, the second color pixel, the fourth color pixel and the fifth color pixel has a first long-side length, the third color pixel has a second long-side length which is greater than the first long-side length, and the sixth color pixel has a third long-side length which is less than the first long-side length.

Claims

1. :

A display device comprising;

an array substrate including a first pixel electrode, a second pixel electrode neighboring the first pixel electrode in a first direction, a third pixel electrode neighboring the second pixel electrode in the first direction, a common electrode, arid an insulation film between the common electrode and the first to third pixel electrodes, wherein

each of the first to third pixel electrodes has a plurality of main pixel electrodes and a connecting part connecting the main pixel electrodes,

at least one of the main pixel electrodes of the third pixel electrode has a length different from lengths of the main pixel electrodes of the first and second pixel electrodes in a second direction intersecting the first direction,

the connecting part of the first pixel electrode and the connecting part of the second pixel electrode extend on a first straight line,

the connecting part of the third pixel electrode extends on a second straight line, and

the second straight line is shifted in the second direction from the first straight line.

2. :

The display device of claim 1, wherein the common electrode opposes to the first to third pixel electrodes.

3. :

The display device of claim 2, wherein the one of the main pixel electrodes or the third pixel electrode is longer than the main pixel electrodes of the first and second pixel electrodes.

4. :

The display device of claim 3, wherein

the array substrate further includes a forth pixel electrode neighboring the first pixel electrode in the second direction, a fifth pixel electrode neighboring the second pixel electrode in the second direction and neighboring the fourth pixel electrode in the first direction, and a sixth pixel electrode neighboring the third pixel electrode in the second direction and neighboring the fifth pixel electrode in the first direction,

each of the fourth to sixth pixel electrodes has a plurality of main pixel electrodes and a connecting part connecting the main pixel electrodes,

the connecting part of the fourth pixel electrode and the connecting part of the fifth pixel electrode extend on a third straight line,

the connecting part of the sixth pixel electrode extends on a fourth straight line, and

the fourth straight line is shifted in the second direction from the third straight line.

5. :

The display device of claim 4, wherein

at least one of the main pixel electrodes of the sixth pixel electrode is shorter than the main pixel electrodes of the fourth and fifth pixel electrodes, and

the main pixel electrodes of the first pixel electrode, the main pixel electrodes of the second pixel electrode, the main, pixel electrodes of the fourth pixel electrode, and the main pixel electrodes of the fifth pixel electrode have substantially the same length.

6. :

The display device of claim 10, wherein

a number of the main pixel electrodes of the third pixel electrode is greater than a number of the main pixel electrodes of the first and the second pixel electrodes,

a number of the main pixel electrodes of the sixth pixel electrode is greater than a number of the main pixel electrodes of the fourth and the sixth pixel electrode,

the number of the main pixel electrodes of the first pixel electrode, the number of the main pixel electrodes of the second pixel electrode, the number of the main pixel electrodes of the fourth pixel electrode and the number of the main pixel electrodes of the fifth pixel electrode are the same, and

the number of the main pixel electrodes of the third pixel electrode is the same as the number of the main pixel electrodes of the sixth pixel electrode.

7. :

The display device of claim 6, wherein

the array substrate further includes a first gate line and a second gate line,

the first gate line is electrically connected to the first to third pixel electrodes,

the second gate line is electrically connected to the fourth to sixth pixel electrodes,

the first gate line crosses central portions of the second direction of the first to third pixel electrodes, respectively, and

the second gate line crosses central portions of the second direction of the fourth to sixth pixel electrodes, respectively.

8. :

The display device of claim 2, wherein the one of the main pixel electrodes of the third pixel electrode is shorter than the main pixel electrodes of the first and second pixel electrodes.

9. :

The display device of claim 8, wherein

the array substrate further includes a forth pixel electrode neighboring the first pixel electrode in the second direction, a fifth pixel electrode neighboring the second pixel electrode in the second direction and neighboring the fourth pixel electrode in the first direction, and a sixth pixel electrode neighboring the third pixel electrode in the second direction and neighboring the fifth pixel electrode in the first direction,

each of the fourth to sixth pixel electrodes has a plurality of main pixel electrodes and a connecting part connecting the main pixel electrodes,

the connecting part of the fourth pixel electrode and the connecting part of the fifth pixel electrode extend on a third straight line,

the connecting part of the sixth pixel electrode extends on a fourth straight line, and

the fourth straight line is shifted in the second direction from the third straight line.

10. :

The display device of claim 9, wherein

at least one of the main pixel electrodes of the sixth pixel electrode is longer than the main pixel electrodes of the fourth and fifth pixel electrodes, and

the main pixel electrodes of the first pixel electrode, the main pixel electrodes of the second pixel electrode, the main pixel electrodes of the fourth pixel electrode and the main pixel electrodes of the fifth pixel electrode have substantially the same length.

11. :

The display device of claim 10, wherein

a number of the main pixel electrodes of the third pixel electrode is greater than a number of the main pixel electrodes of the first and second pixel electrodes,

a number of the main pixel electrodes of the sixth pixel electrode is greater than a number of the main pixel electrodes of the fourth and fifth pixel electrodes,

the number of the main pixel electrodes of the first pixel electrode, the number of the main pixel electrodes of the second pixel electrode, the number of the main pixel electrodes of the fourth pixel electrode and the number of the main pixel electrodes of the fifth pixel electrode are the same, and

the number of the main pixel electrodes of the third pixel electrode is the same as the number of the main pixel electrodes of the sixth pixel electrode.

12. :

The display device of claim 11, wherein the array substrate further includes a first gate line and a second gate line,

the first gate line is electrically connected to the first to third pixel electrodes,

the second gate line is electrically connected to the fourth to sixth pixel electrodes,

the first gate line crosses central portions of the second direction of the first to third pixel electrodes, respectively, and

the second gate line crosses central portions of the second direction of the fourth to sixth pixel electrodes, respectively.

13. :

A display device comprising;

an array substrate including a first main pixel electrode, a second main pixel electrode, a third main pixel electrode and a first gate line electrically connected to the first to third main pixel electrodes and extending in a first direction, wherein

each of the first to third main pixel electrodes has a first end and a second end in a second direction intersecting the first direction, and

a distance between the first end of the third main pixel electrode and the first gate line is greater than a distance between the first end of the first main pixel electrode and the first gate line and a distance between the first end of the second main pixel electrode and the first gate line in the second direction,

14. :

The display device of claim 13, wherein the first gate line crosses central portions of the second direction of the first to third main pixel electrodes, respectively.

15. :

The display device of claim 14, wherein

the array substrate further includes a second gate line neighboring the first gate line in the second direction, and

a distance between the second end of the third main pixel electrode and the second gate line is less than a distance between the second end of the first main pixel electrode and the second gate line and a distance between the second end of the second main pixel electrode and the second gate line in the second direction.

16. :

The display device of claim 15, wherein

the array substrate further includes a fourth main pixel electrode having a first end and a second end, and electrically connected to the first gate line, and

a distance between the first end of the fourth main pixel electrode and the first gate line is less than the distance between the first end of the first main pixel electrode and the first gate line and the distance between the first end of the second main pixel electrode and the first gate line in the second direction.

17. :

The display device of claim 16, wherein a distance between the second end of the fourth main pixel electrode and the second gate line is greater than the distance between the second end of the first main pixel electrode and the second gate line and the distance between the second end of the second main pixel electrode and the second gate line in the second direction.

18. :

The display device of claim 17, wherein

the array substrate further includes a common electrode opposed to the first to fourth main pixel electrodes, and a plurality of source lines crossing the first gate line, and

the first to fourth main pixel electrodes are electrically connected to different source lines, respectively.

19. :

A display device comprising;

a first substrate including a first pixel electrode, a second pixel electrode neighboring the first pixel electrode in a first direction, a third pixel electrode neighboring the second pixel electrode in the first direction, a fourth pixel electrode neighboring the first pixel electrode in a second direction, a fifth pixel electrode neighboring the second pixel electrode in the second direction, a sixth pixel electrode neighboring the third pixel electrode in the second direction, a first common electrode, an interlayer insulation film covering the first common electrode, and a first alignment film covering the first to sixth pixel electrodes;

a second substrate including a first color filter extending in the second direction and opposed to the first electrode and the fourth pixel electrode, a second color filter neighboring the first color filter in the first direction, extending in the second direction and opposed to the second pixel electrode and the fifth pixel electrode, a third color filter neighboring the second color filter in the first direction and opposed to the third pixel electrode, a fourth color filter neighboring the third color filter in the second direction and opposed to the sixth pixel electrode, and a second alignment film covering the second common electrode; and

a liquid crystal layer held between the first substrate and the second substrate, wherein

the first to sixth pixel electrodes are formed on the interlayer insulation film and are opposed to the first common electrode,

each of the first pixel electrode, the second pixel electrode, the fourth pixel electrode, and the fifth pixel electrode has a first main pixel electrode extending in the second direction,

the third pixel electrode has a second main pixel electrode which extends in the second direction and is larger than the first main pixel electrode;

, and

the sixth pixel electrode has a third main pixel electrode which extends in the second direction and is smaller than the first main pixel electrode.

20. :

The display device of claim 19, wherein

the first pixel, electrode has a first edge and a second edge,

the second pixel electrode has a third edge and a fourth edge,

each of the first to fourth edge extends in the first direction,

the first edge and the third edge extend on a first straight line,

the second edge and the fourth edge extend on a second straight line, and

the third pixel electrode has a fifth edge which is displaced in the second direction from the first straight line and a sixth edge which is displaced in the second direction from the second straight line.