IP Library › Granted Patent US 11,018,201
Granted Patent B2
US 11,018,201 · App. 16/509,087 · Granted May 25, 2021

Display device

Inventors: Tomoya Aoyama (Kanagawa, JP); Ryu Komatsu (Kanagawa, JP); Daiki Nakamura (Kanagawa, JP)
Assignee: Semiconductor Energy Laboratory Co., Ltd.
H01L27/322G02F1/133514H01L27/3246H01L51/5284G02F1/13394G02F1/133512H01L2251/558
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Quick Facts
Patent No.
US 11,018,201
App. No.
16/509,087
Granted
May 25, 2021
Kind
B2
Abstract

A display device with improved viewing angle characteristics is provided. A display device with suppressed mixture of colors between adjacent pixels is provided. The display device includes a first coloring layer, a second coloring layer, and a structure body therebetween. The structure body has a portion closer to a display surface side than a bottom surface of the first coloring layer or a bottom surface of the second coloring layer.

Claims (48)

1. A liquid crystal display device comprising:

a transistor over a first substrate;

a liquid crystal element over the first substrate, the liquid crystal element electrically connected to the transistor, and the liquid crystal element comprising a first conductive layer, a second conductive layer, and a liquid crystal;

an insulating layer over the first substrate;

a first coloring layer and a second coloring layer over the insulating layer;

a structure body over and in directly contact with the insulating layer, and between the first coloring layer and the second coloring layer; and

a second substrate over the first coloring layer and the second coloring layer,

wherein a top surface of the structure body is closer to the second substrate side than a bottom surface of the first coloring layer or a bottom surface of the second coloring layer is,

wherein a channel formation region of the transistor comprises an oxide semiconductor, and

wherein the channel formation region of the transistor and the structure body overlap each other.

2. The liquid crystal display device according to claim 1 , wherein a thickness of the first coloring layer is different from a thickness of the second coloring layer.

3. The liquid crystal display device according to claim 1 , wherein a top surface of the first coloring layer and a top surface of the second coloring layer are closer to the second substrate side than the bottom surface of the first coloring layer and the bottom surface of the second coloring layer.

4. The liquid crystal display device according to claim 1 , wherein the first coloring layer and the second coloring layer are apart from each other.

5. The liquid crystal display device according to claim 1 , wherein the structure body and the second substrate overlap each other with an adhesive layer therebetween.

6. The liquid crystal display device according to claim 1 ,

wherein one of the first conductive layer and the second conductive layer is a pixel electrode, and

wherein the other of the first conductive layer and the second conductive layer is a common electrode.

7. A liquid crystal display device comprising:

a transistor over a first substrate;

a liquid crystal element over the first substrate, the liquid crystal element electrically connected to the transistor, and the liquid crystal element comprising a first conductive layer, a second conductive layer, and a liquid crystal overlapping with the first conductive layer and the second conductive layer;

an insulating layer over the first substrate;

a first coloring layer and a second coloring layer over the insulating layer; and

a structure body over the insulating layer, and between the first coloring layer and the second coloring layer,

wherein a channel formation region of the transistor comprises an oxide semiconductor,

wherein the channel formation region of the transistor and the structure body overlap each other, and

wherein one of the first conductive layer and the second conductive layer comprises a slit.

8. The liquid crystal display device according to claim 7 , wherein a thickness of the first coloring layer is different from a thickness of the second coloring layer.

9. The liquid crystal display device according to claim 7 , wherein the first coloring layer and the second coloring layer are apart from each other.

10. The liquid crystal display device according to claim 7 ,

wherein one of the first conductive layer and the second conductive layer is a pixel electrode, and

wherein the other of the first conductive layer and the second conductive layer is a common electrode.

11. The liquid crystal display device according to claim 7 , further comprising a second substrate over the first coloring layer and the second coloring layer.

12. A liquid crystal display device comprising:

a transistor over a first substrate;

a liquid crystal element over the first substrate, the liquid crystal element electrically connected to the transistor, and the liquid crystal element comprising a first conductive layer, a second conductive layer, and a liquid crystal overlapping with the first conductive layer and the second conductive layer;

an insulating layer over the first substrate;

a first coloring layer and a second coloring layer over the insulating layer; and

a structure body over the insulating layer, and between the first coloring layer and the second coloring layer,

wherein a channel formation region of the transistor comprises an oxide semiconductor,

wherein the channel formation region of the transistor and the structure body overlap each other,

wherein one of the first conductive layer and the second conductive layer comprises a slit, and

wherein the first coloring layer, the second coloring layer, and the structure body extend in the same direction when seen from above.

13. The liquid crystal display device according to claim 12 , wherein a thickness of the first coloring layer is different from a thickness of the second coloring layer.

14. The liquid crystal display device according to claim 12 , wherein the first coloring layer and the second coloring layer are apart from each other.

15. The liquid crystal display device according to claim 12 ,

wherein one of the first conductive layer and the second conductive layer is a pixel electrode, and

wherein the other of the first conductive layer and the second conductive layer is a common electrode.

16. The liquid crystal display device according to claim 12 , further comprising a second substrate over the first coloring layer and the second coloring layer.

Priority Claims (2)
JP 2015-169163 · Aug 28, 2015 · national
JP 2016-119610 · Jun 16, 2016 · national
Continuity (2)
Continuation 15247205 · Aug 25, 2016
Related Publication 20190333969A1 · Oct 31, 2019
Cited By (1)
US 12,720,958