IP Library Granted Patent US 10,692,453
Granted Patent B2
US 10,692,453 · App. 15/453,484 · Granted Jun 23, 2020

Electro-optical device

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Quick Facts
Patent No.
US 10,692,453
App. No.
15/453,484
Granted
Jun 23, 2020
Kind
B2
Abstract

An electro-optical device includes first and second signal lines extending in directions intersecting each other on a component substrate, a pixel area including a pixel electrode disposed in correspondence with an intersection of the first and second signal lines, a signal output circuit disposed outside the pixel area and outputs a driving signal to the first signal line, and a connection wiring connecting the signal output circuit and the first signal line. An outer peripheral edge of the pixel area has a curved portion or a bent portion in a portion facing the signal output circuit, and the signal output circuit includes a plurality of circuit blocks arranged along the curved portion or the bent portion of the portion facing the signal output circuit with deviated between adjacent circuit blocks in the direction of extension of the first signal line and/or the direction of extension of the second signal line.

Claims (37)

1. An electro-optical device comprising:

a plurality of first signal lines extending in a first direction on a component substrate;

a plurality of second signal lines extending in a second direction on the component substrate, the second direction intersecting the first direction;

a pixel area in which a plurality of pixel electrodes are disposed, each of the pixel electrodes being disposed at a portion corresponding to an intersection of the first and second signal lines;

a signal output circuit that is disposed outside the pixel area and outputs a driving signal to the first signal line, the signal output circuit including a plurality of circuit blocks arranged next to one another; and

a plurality of connection wirings

wherein

an outer peripheral edge of the pixel area has a curved portion or a bent portion in a portion facing the signal output circuit,

the first signal lines are scanning lines, and the signal output circuit is a scanning line driving circuit,

each of the circuit blocks includes one or a plurality unit circuits,

each of the unit circuits includes a shift register and a buffer connected to the shift register,

the unit circuits included in a single circuit block are aligned in the second direction such that the positions of the respective unit circuits in the signal circuit block are the same in the first direction,

each of the unit circuits is connected to a corresponding one of the first signal lines through a corresponding one of the connection wirings, and outputs a driving signal to the corresponding first signal line from the buffer;

at least a first circuit block included in the circuit blocks is arranged along the curved portion or the bent portion, and a second circuit block included in the circuit blocks and adjacent to the first circuit block is arranged so as to be displaced in the first direction from the first circuit block, and

a lead-out area where the first circuit block and the second circuit block are connected with wirings is provided between the first and second circuit blocks.

2. The electro-optical device according to claim 1 ,

wherein a pitch of the connection wirings is smaller than the pitch of the first signal lines.

3. The electro-optical device according to claim 1 ,

wherein the component substrate has an outer peripheral edge approximately along the outer peripheral edge of the pixel area.

4. The electro-optical device according to claim 1 ,

wherein the signal output circuit is disposed on both sides in the first direction.

5. The electro-optical device according to claim 1 ,

wherein the signal output circuit is disposed on one side in the first direction.

6. The electro-optical device according to claim 1 ,

wherein a first distance in the first direction is provided between the first and second circuit blocks.

7. The electro-optical device according to claim 1 ,

wherein each circuit block has a far side and a near side that are different in distance from the pixel area and define a length of the circuit block in the first direction, and the far side of the second circuit block is located between the far side and the near side of the first circuit block in the first direction.

8. The electro-optical device according to claim 1 ,

wherein each circuit block has a far side and a near side that are different in distance from the pixel area and define a length of the circuit block in the first direction, and the far side of the second circuit block is located at substantially the same position of the near side of the first circuit block in the first direction.

9. The electro-optical device according to claim 1 ,

wherein the second circuit block does not overlap the first circuit block when viewed from the second direction.

10. The electro-optical device according to claim 9 ,

wherein the second circuit block overlaps the first circuit block when viewed from the first direction.

11. The electro-optical device according to claim 1 ,

wherein a second distance in the second direction is provided between the first and second circuit blocks.

12. The electro-optical device according to claim 11 ,

wherein the second distance is longer than a pitch of the scanning lines provided in the pixel area.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 15, 2017
From: ANZAI, KATSUYA; KAWADA, HIDEKI; MATSUDA, HIROSHI; IWASAKI, YUKITADA
To: EPSON IMAGING DEVICES CORPORATION
Reel/Frame 041584/0900 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 15, 2017
From: EPSON IMAGING DEVICES CORPORATION
To: SONY CORPORATION
Reel/Frame 041585/0039 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 15, 2017
From: SONY CORPORATION
To: JAPAN DISPLAY WEST INC.
Reel/Frame 041585/0138 →
CHANGE OF NAME Recorded Mar 15, 2017
From: JAPAN DISPLAY WEST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 042020/0412 →