IP Library Granted Patent US 11,022,833
Granted Patent B2
US 11,022,833 · App. 16/419,448 · Granted Jun 1, 2021

Electro-optical device and electronic apparatus

Inventor: Shinsuke Fujikawa (Chino, JP)
Assignee: SEIKO EPSON CORPORATION
G02F1/133512G02F1/1339G02F1/1345G02F1/13439G02F1/13454G02F1/136209
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Quick Facts
Patent No.
US 11,022,833
App. No.
16/419,448
Granted
Jun 1, 2021
Kind
B2
Abstract

In a liquid crystal device serving as an electro-optical device, a liquid crystal layer as an electro-optical element is disposed between a base material 10 s as a first substrate and a base material 20 s as a second substrate which are disposed to face each other via a photo-curable type seal material, the substrate 10 s and the substrate 20 s are transmissive and include a plurality of light-shielding patterns disposed at intervals in a seal region of the substrate 10 s where the seal material is disposed, and on the substrate 10 s , a semiconductor layer of a transistor included in a driving circuit for driving the electro-optical element is disposed to overlap, in plan view, with at least one of the plurality of light-shielding patterns.

Claims (68)

1. An electro-optical device comprising:

a first substrate having a translucent property;

a second substrate disposed to face the first substrate, the second substrate having a translucent property;

a seal material surrounding a display region; and

an electro-optical element provided between the first substrate and the second substrate, wherein

the first substrate includes a first transistor, a second transistor, a first wiring and a second wiring, each being disposed in a region that overlaps with the seal material,

the first wiring is disposed between the seal material and the first transistor such that the first wiring overlaps with an overlap position at which a channel region of a first semiconductor layer of the first transistor and a gate electrode of the first transistor overlap with each other in plan view,

the second wiring is disposed between the seal material and the second transistor such that the second wiring overlaps with a channel region of the second transistor in plan view, and

the first wiring and the second wiring are arranged with an interval, the first wiring is electrically connected to the second transistor.

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

the first wiring has a portion that projects from the channel region of the first transistor in a channel width direction of the channel region of the first transistor.

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

the second substrate includes a light-shielding portion surrounding the display region, the light-shielding portion being disposed between the seal material and the display region in plan view, and

the first wiring does not overlap the light-shielding portion in plan view.

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

the first transistor and the second transistor are disposed adjacent to each other in plan view.

5. An electronic apparatus comprising the electro-optical device according to claim 1 .

6. An electro-optical device comprising:

a first substrate having a translucent property;

a second substrate disposed to face the first substrate, the second substrate having a translucent property;

a seal material surrounding a display region; and

an electro-optical element provided between the first substrate and the second substrate, wherein

the first substrate includes a first transistor, a second transistor, a first wiring and a second wiring, each being disposed in a region that overlaps with the seal material,

the first wiring is disposed between the seal material and the first transistor such that the first wiring overlaps with a central part of a channel region of the first transistor in a channel length direction of the channel region of the first transistor in plan view,

the second wiring is disposed between the seal material and the second transistor such that the second wiring overlaps with a central part of a channel region of the second transistor in a channel length direction of the channel region of the second transistor in plan view, and

the first wiring and the second wiring are arranged with an interval, the first wiring is electrically connected to the second transistor.

7. The electro-optical device according to claim 6 , wherein

the first wiring has a portion that projects from the channel region of the first transistor in a channel width direction of the channel region of the first transistor.

8. The electro-optical device according to claim 6 , wherein

the second substrate includes a light-shielding portion surrounding the display region, the light-shielding portion being disposed between the seal material and the display region in plan view, and

the first wiring does not overlap the light-shielding portion in plan view.

9. The electro-optical device according to claim 6 , wherein

the first transistor and the second transistor are disposed adjacent to each other in plan view.

10. An electronic apparatus comprising the electro-optical device according to claim 6 .

11. An electro-optical device comprising:

a first substrate having a translucent property;

a second substrate disposed to face the first substrate, the second substrate having a translucent property;

a seal material surrounding a display region; and

an electro-optical element provided between the first substrate and the second substrate, wherein

the first substrate includes a first transistor, a second transistor, a first wiring and a second wiring, each being disposed in a region that overlaps with the seal material,

the first wiring is disposed between the seal material and the first transistor such that the first wiring overlaps with an overlap position at which a channel region of a first semiconductor layer of the first transistor and a gate electrode of the first transistor overlap with each other in plan view,

the second wiring is disposed between the seal material and the second transistor such that the second wiring overlaps with a channel region of the second transistor in plan view, and

the first wiring and the second wiring are arranged with an interval in a first direction, the interval is not less than a width of the first wiring in the first direction.

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

the first wiring has a portion that projects from the channel region of the first transistor in a channel width direction of the channel region of the first transistor.

13. The electro-optical device according to claim 11 , wherein

the second substrate includes a light-shielding portion surrounding the display region, the light-shielding portion being disposed between the seal material and the display region in plan view, and

the first wiring does not overlap the light-shielding portion in plan view.

14. The electro-optical device according to claim 11 , wherein

the first transistor and the second transistor are disposed adjacent to each other in plan view.

15. An electronic apparatus comprising the electro-optical device according to claim 11 .

16. An electro-optical device comprising:

a first substrate having a translucent property;

a second substrate disposed to face the first substrate, the second substrate having a translucent property;

a seal material disposed surrounding a display region; and

an electro-optical element provided between the first substrate and the second substrate, wherein

the first substrate includes a first transistor, a second transistor, a first wiring and a second wiring, each being disposed in a region that overlaps with the seal material,

the first wiring is disposed between the seal material and the first transistor such that the first wiring overlaps with a central part of a channel region of the first transistor in a channel length direction of the channel region of the first transistor in plan view,

the second wiring is disposed between the seal material and the second transistor such that the second wiring overlaps with a central part of a channel region of the second transistor in a channel length direction of the channel region of the second transistor in plan view, and

the first wiring and the second wiring are arranged with an interval in a first direction, the interval is not less than a width of the first wiring in the first direction.

17. The electro-optical device according to claim 16 , wherein

the first wiring has a portion that projects from the channel region of the first transistor in a channel width direction of the channel region of the first transistor.

18. The electro-optical device according to claim 16 , wherein

the second substrate includes a light-shielding portion surrounding the display region, the light-shielding portion being disposed between the seal material and the display region in plan view, and

the first wiring does not overlap the light-shielding portion in plan view.

19. The electro-optical device according to claim 16 , wherein

the first transistor and the second transistor are disposed adjacent to each other in plan view.

20. An electronic apparatus comprising the electro-optical device according to claim 16 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 22, 2019
From: FUJIKAWA, SHINSUKE
To: SEIKO EPSON CORPORATION
Reel/Frame 049255/0249 →
Priority Claims (1)
JP JP2018-098506 · May 23, 2018 · national
Continuity (1)
Related Publication 20190361288A1 · Nov 28, 2019