IP Library Granted Patent US 10,403,701
Granted Patent B2
US 10,403,701 · App. 16/158,953 · Granted Sep 3, 2019

Electro-optical device and electronic apparatus

Inventors: Takeshi Koshihara (Matsumoto, JP); Hitoshi Ota (Shiojiri, JP); Ryoichi Nozawa (Tatsuno-machi, JP)
Assignee: SEIKO EPSON CORPORATION
H01L27/3262G09G3/32H01L27/326H01L27/3206H01L27/3265H01L27/3272H01L27/3276H01L51/5265H01L51/5271G09G3/325G09G2300/0842G09G2300/0861H01L27/1214H01L27/322
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Quick Facts
Patent No.
US 10,403,701
App. No.
16/158,953
Granted
Sep 3, 2019
Kind
B2
Abstract

Subpixels of R, G, and B corresponding to a scanning line as a first conductive layer extended in a row direction and a data transfer line as a second conductive layer extended in a column direction are provided. A plurality of transistors in the subpixel of each of the colors is disposed along the column direction, and a reflective layer in the subpixel of at least one color is disposed along the row direction so as to overlap any transistor of subpixels of each display color. A center position of a disposition region of a reflective layer in one pixel unit including the subpixels of R, G, and B is different from a center position of a disposition region of a transistor in one pixel unit.

Claims (65)

1. An electro-optical device comprising:

a first subpixel having a first reflective layer refracting light from the first subpixel;

a first circuit controlling a first current of the first subpixel based on a first data potential and having a first driving transistor;

a second subpixel having a second reflective layer refracting light from the second subpixel;

a second circuit controlling a second current of the second subpixel based on a second data potential and having a second driving transistor;

a third subpixel having a third reflective layer refracting light from the third subpixel;

a third circuit controlling a third current of the third subpixel based on a third data potential and having a third driving transistor,

wherein the first reflective layer overlaps the first driving transistor, the second driving transistor, and the third driving transistor in plan view, and

wherein area of the first subpixel is larger than that of the second subpixel and that of the third subpixel.

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

a power source wiring connected to the first driving transistor, the second driving transistor, and the third driving transistor,

wherein the power source wiring is disposed between the first reflective layer and the first drive transistor and is disposed so as to overlap the first drive transistor in plan view,

wherein the power source wiring is disposed between the first reflective layer and the second drive transistor and is disposed so as to overlap the second drive transistor in plan view, and

wherein the power source wiring is disposed between the first reflective layer and the third drive transistor and is disposed so as to overlap the third drive transistor in plan view.

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

wherein the first reflective layer has an edge which overlaps the power source wiring in plan view.

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

wherein the entirety of the first reflective layer overlaps the power source wiring in plan view.

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

wherein the first subpixel has a first shape that is longer in a first direction than a second direction perpendicular to the first direction.

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

wherein the first circuit is formed in a shape that is longer in the second direction than the first direction,

wherein the second circuit is formed in a shape that is longer in the second direction than the first direction,

wherein the third circuit is formed in a shape that is longer in the second direction than the first direction,

wherein the first subpixel has a first shape that is longer in a first direction than a second direction perpendicular to the first direction.

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

wherein the first circuit has a first writing control transistor,

wherein the second circuit has a second writing control transistor,

wherein the third circuit has a third writing control transistor, and

wherein a first gate of the first writing control transistor, a second gate of the second writing control transistor, and a third gate of the third writing control transistor is conducted to a scanning line.

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

wherein the scanning line extends in the first direction.

9. An electro-optical device comprising:

a blue subpixel having a first reflective layer refracting light from the blue subpixel;

a first circuit controlling a first current of the blue subpixel based on a first data potential and having a first driving transistor;

a green subpixel having a second reflective layer refracting light from the green subpixel;

a second circuit controlling a second current of the green subpixel based on a second data potential and having a second driving transistor;

a red subpixel having a third reflective layer refracting light from the red subpixel;

a third circuit controlling a third current of the red subpixel based on a third data potential and having a third driving transistor,

wherein the first reflective layer overlaps the first driving transistor, the second driving transistor, and the third driving transistor in plan view.

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

a power source wiring connected to the first driving transistor, the second driving transistor, and the third driving transistor,

wherein the power source wiring is disposed between the first reflective layer and the first drive transistor and is disposed so as to overlap the first drive transistor in plan view,

wherein the power source wiring is disposed between the first reflective layer and the second drive transistor and is disposed so as to overlap the second drive transistor in plan view, and

wherein the power source wiring is disposed between the first reflective layer and the third drive transistor and is disposed so as to overlap the third drive transistor in plan view.

11. An electronic apparatus comprising:

the electro-optical device according to claim 1 .

12. An electronic apparatus comprising:

the electro-optical device according to claim 2 .

13. An electronic apparatus comprising:

the electro-optical device according to claim 3 .

14. An electronic apparatus comprising:

the electro-optical device according to claim 4 .

15. An electronic apparatus comprising:

the electro-optical device according to claim 5 .

16. An electronic apparatus comprising:

the electro-optical device according to claim 6 .

17. An electronic apparatus comprising:

the electro-optical device according to claim 7 .

18. An electronic apparatus comprising:

the electro-optical device according to claim 8 .

19. An electronic apparatus comprising:

the electro-optical device according to claim 9 .

20. An electronic apparatus comprising:

the electro-optical device according to claim 10 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 12, 2023
From: SEIKO EPSON CORPORATION
To: LUMITEK DISPLAY TECHNOLOGY LIMITED
Reel/Frame 065221/0372 →
Priority Claims (1)
JP 2016-025617 · Feb 15, 2016 · national
Continuity (3)
Continuation 15815295 · Nov 16, 2017
Continuation 15422976 · Feb 2, 2017
Related Publication 20190051714A1 · Feb 14, 2019
Cited By (1)
US 12,283,245