IP Library Granted Patent US 10,838,261
Granted Patent B2
US 10,838,261 · App. 16/194,390 · Granted Nov 17, 2020

Display devices

Inventor: Takashi Mibu (Hyogo, JP)
Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
G02F1/13394G02B5/201G02F1/133345G02F1/133514G02F1/133528G02F1/134309
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Quick Facts
Patent No.
US 10,838,261
App. No.
16/194,390
Granted
Nov 17, 2020
Kind
B2
Abstract

Examples of display devices are described herein. In an example, a display device comprises a color filter (CF) substrate having a black matrix extending in a first direction and a second direction different from the first direction, wherein, in plan view, two adjacent color filters of different colors are aligned along the first direction and two adjacent color filters of a same color are aligned along the second direction. The display device comprises a plurality of spacers arranged in the first direction, wherein the plurality of spacers comprises a first, second and third spacer arranged adjacent to each other. The spacers are arranged, such that along the first direction or the second direction, a distance between a center of the first spacer and a center of the second spacer is different from a distance between the center of the second spacer and a center of the third spacer.

Claims (70)

1. A display device comprising:

a first substrate comprising a plurality of pedestals; and

a second substrate opposite to the first substrate, the second substrate comprising a plurality of spacers, wherein

the plurality of spacers comprises a first spacer, a second spacer and a third spacer arranged consecutively, and the plurality of pedestals comprises a first pedestal corresponding to the first spacer, a second pedestal corresponding to the second spacer and a third pedestal corresponding to the third spacer, such that, in plan view, a distance between a center of the first spacer and a center of the first pedestal is a first distance, a distance between a center of the second spacer and a center of the second pedestal is a second distance and a distance between a center of the third spacer and a center of the third pedestal is a third distance, wherein

the first distance is different from the second distance and the third distance;

wherein the first substrate comprises:

a plurality of gate lines extending in a row direction;

a plurality of data lines extending in a column direction,

a plurality of pixel electrodes;

a common electrode opposite to the plurality of pixel electrodes;

a plurality of common metal lines extending in the column direction, formed in contact with the common electrode, wherein

the first spacer, the second spacer, and the third spacer are arranged consecutively in the row direction,

a common metal line from the plurality of common metal lines is located between the second spacer and the third spacer and closer to the third pedestal than the second pedestal in plan view, wherein

in the row direction, the center of the third spacer is offset in a first side with respect to the center of the third pedestal, and the first side is in a direction away from the common metal line in plan view.

2. The display device as claimed in claim 1 , wherein the first distance is smaller than the second distance and the third distance.

3. The display device as claimed in claim 1 , wherein the second distance is same as the third distance.

4. The display device as claimed in claim 1 ,

wherein the first distance, the second distance, and the third distance are measured in one of the row direction and the column direction.

5. The display device as claimed in claim 1 , wherein the center of the second spacer is offset in a first side with respect to the center of the second pedestal, and the center of the third spacer is offset in a second side with respect to the center of the third pedestal, and wherein

the first side is opposite to the second side.

6. The display device as claimed in claim 5 ,

wherein the first side and the second side are aligned in one of the row direction and the column direction.

7. The display device as claimed in claim 1 , wherein the center of the second spacer and the center of the third spacer are offset with respect to the center of the second pedestal and the center of the third pedestal, respectively, in a first side.

8. The display device as claimed in claim 7 ,

wherein the first side is aligned in one of the row direction and the column direction.

9. The display device as claimed in claim 1 , wherein the plurality of spacers further comprises a fourth spacer located adjacent to the third spacer, and the plurality of pedestals further comprises a fourth pedestal corresponding to the fourth spacer, wherein a distance between a center of the fourth spacer and a center of the fourth pedestal is a fourth distance, and the first distance is same as the fourth distance.

10. A display device comprising:

a first substrate comprising a plurality of pedestals; and

a second substrate opposite to the first substrate, the second substrate comprising a plurality of spacers, wherein

the plurality of spacers comprises a first spacer, a second spacer and a third spacer arranged consecutively, and the plurality of pedestals comprises a first pedestal corresponding to the first spacer, a second pedestal corresponding to the second spacer and a third pedestal corresponding to the third spacer, such that, in plan view, a distance between a center of the first spacer and a center of the first pedestal is a first distance, a distance between a center of the second spacer and a center of the second pedestal is a second distance and a distance between a center of the third spacer and a center of the third pedestal is a third distance, wherein

the first distance is different from the second distance and the third distance;

wherein the plurality of spacers further comprises a fourth spacer located adjacent to the third spacer, and the plurality of pedestals further comprises a fourth pedestal corresponding to the fourth spacer, wherein a distance between a center of the fourth spacer and a center of the fourth pedestal is a fourth distance, and the first distance is same as the fourth distance;

wherein the first substrate comprises:

a plurality of gate lines extending in a row direction;

a plurality of data lines extending in a column direction,

a plurality of pixel electrodes;

a common electrode opposite to the plurality of pixel electrodes;

a plurality of common metal lines extending in the column direction, formed in contact with the common electrode, wherein

the first spacer, the second spacer, the third spacer and the fourth spacer are arranged consecutively in the row direction,

a common metal line from the plurality of common metal lines is located between the third spacer and the fourth spacer and closer to the third pedestal than the fourth pedestal in plan view, wherein

in the row direction, the center of the third spacer is offset in a first side with respect to the center of the third pedestal, and the first side is in a direction away from the common metal line in plan view.

11. A display device comprising:

a first substrate comprising a plurality of pedestals; and

a second substrate opposite to the first substrate, the second substrate comprising a plurality of spacers, wherein

the plurality of spacers comprises a first spacer, a second spacer and a third spacer arranged consecutively, and the plurality of pedestals comprises a first pedestal corresponding to the first spacer, a second pedestal corresponding to the second spacer and a third pedestal corresponding to the third spacer, such that, in plan view, a distance between a center of the first spacer and a center of the first pedestal is a first distance, a distance between a center of the second spacer and a center of the second pedestal is a second distance and a distance between a center of the third spacer and a center of the third pedestal is a third distance, wherein

the first distance is different from the second distance and the third distance;

wherein the plurality of spacers further comprises a fourth spacer located adjacent to the third spacer, and the plurality of pedestals further comprises a fourth pedestal corresponding to the fourth spacer, wherein a distance between a center of the fourth spacer and a center of the fourth pedestal is a fourth distance, and the first distance is same as the fourth distance;

wherein the first substrate comprises:

a plurality of gate lines extending in a row direction;

a plurality of data lines extending in a column direction,

a plurality of pixel electrodes;

a common electrode opposite to the plurality of pixel electrodes;

a plurality of common metal lines extending in the column direction, formed in contact with the common electrode, wherein

the first spacer, the second spacer, the third spacer and the fourth spacer are arranged consecutively in the row direction, and

a common metal line from the plurality of common metal lines is located between the third spacer and the fourth spacer and closer to the third pedestal than the fourth pedestal in plan view, wherein

a minimum distance between the common metal line and the center of the third spacer is larger than a minimum distance between the common metal line and the center of the third pedestal in plan view.

12. A display device comprising:

a first substrate comprising a plurality of pedestals; and

a second substrate opposite to the first substrate, the second substrate comprising a plurality of spacers, wherein

the plurality of spacers comprises a first spacer, a second spacer and a third spacer arranged consecutively, and the plurality of pedestals comprises a first pedestal corresponding to the first spacer, a second pedestal corresponding to the second spacer and a third pedestal corresponding to the third spacer, such that, in plan view, a distance between a center of the first spacer and a center of the first pedestal is a first distance, a distance between a center of the second spacer and a center of the second pedestal is a second distance and a distance between a center of the third spacer and a center of the third pedestal is a third distance, wherein

the first distance is different from the second distance and the third distance;

wherein the first substrate comprises:

a plurality of gate lines extending in a row direction;

a plurality of data lines extending in a column direction,

a plurality of pixel electrodes;

a common electrode opposite to the plurality of pixel electrodes;

a plurality of common metal lines extending in the column direction, formed in contact with the common electrode, wherein

the first spacer, the second spacer, and the third spacer are arranged consecutively in the row direction, and

a common metal line from the plurality of common metal lines is located between the third spacer and the second spacer and closer to the third pedestal than the second pedestal in plan view, wherein

a minimum distance between the common metal line and the center of the third spacer is larger than a minimum distance between the common metal line and the center of the third pedestal in plan view.

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: MIBU, TAKASHI
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 047946/0932 →
Continuity (1)
Related Publication 20200159056A1 · May 21, 2020
Cited By (1)
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