# US 10,374,018 B2 · Display device

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- Number: US 10,374,018 B2
- Document ID: US10374018B2
- Status: Granted
- Kind: B2
- Application number: 15/247,205
- Filed: 2016-08-25
- Published: 2017-03-02
- Granted: 2019-08-06
- Earliest claimed: 2015-08-28
- Assignees: Semiconductor Energy Laboratory Co., Ltd.
- Applicants: Semiconductor Energy Laboratory Co., Ltd.
- Inventors: Tomoya Aoyama; Ryu Komatsu; Daiki Nakamura
- Web page: https://patentgrep.com/patent/US10374018B2

## CPC

- G02F 1/133514: {Colour filters}
- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/38: comprising colour filters or colour changing media [CCM]
- G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)}
- G02F 1/13394: {spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence)}
- H10K 59/871: {Self-supporting sealing arrangements}
- H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants}
- H10K 59/876: {comprising a resonant cavity structure, e.g. Bragg reflector pair}
- H10K 59/878: {comprising reflective means}
- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- H10K 2102/351: {Thickness}
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## 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

### Claim 1

A display device comprising:
a first transistor, a second transistor, and a pixel electrode over a first substrate;
an insulating layer over the first transistor, the second transistor, and the pixel electrode, the insulating layer covering an edge of the pixel electrode;
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 the first transistor and the first coloring layer overlap each other,
wherein the second transistor and the second coloring layer overlap each other, and
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.

### Claim 2 (depends on 1)

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

### Claim 3 (depends on 1)

The 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.

### Claim 4 (depends on 1)

The display device according to claim 1, further comprising:
a first display element comprising the pixel electrode, and between the first transistor and the first coloring layer; and
a second display element between the second transistor and the second coloring layer.

### Claim 5 (depends on 1)

The display device according to claim 1, further comprising:
a first display element comprising the pixel electrode, and between the first transistor and the first coloring layer; and
a second display element between the second transistor and the second coloring layer,
wherein each of the first display element and the second display element is a light-emitting element.

### Claim 6

A display device comprising:
a pixel electrode over a first substrate;
an insulating layer over the pixel electrode, the insulating layer covering an edge of the pixel electrode;
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.

### Claim 7 (depends on 6)

The display device according to claim 6, wherein a thickness of the first coloring layer is different from a thickness of the second coloring layer.

### Claim 8 (depends on 6)

The display device according to claim 6, 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.

### Claim 9 (depends on 6)

The display device according to claim 6, further comprising a display element,
wherein the display element comprises:
a first electrode which is the pixel electrode and a second electrode; and
a layer containing a light-emitting substance between the first electrode and the second electrode,
wherein the first coloring layer and the display element overlap each other, and
wherein a distance between the first coloring layer and the second electrode is partly greater than or equal to 0 μm and less than or equal to 20 μm.

### Claim 10 (depends on 6)

The display device according to claim 6, further comprising a display element,
wherein the display element comprises:
a first electrode which is the pixel electrode and a second electrode; and
a layer containing a light-emitting substance between the first electrode and the second electrode,
wherein the layer containing the light-emitting substance is positioned between the structure body and the second electrode, and
wherein a cross section of the structure body has a portion in which an angle between a side surface and a bottom surface is greater than or equal to 25° and less than or equal to 155°.

### Claim 11 (depends on 6)

The display device according to claim 6, further comprising a display element,
wherein the display element comprises:
a first electrode which is the pixel electrode and a second electrode; and
a layer containing a light-emitting substance between the first electrode and the second electrode, and
wherein the layer containing the light-emitting substance is positioned between the structure body and the second electrode.

### Claim 12 (depends on 6)

The display device according to claim 6, further comprising a display element,
wherein the display element comprises:
a first electrode which is the pixel electrode and a second electrode; and
a layer containing a light-emitting substance between the first electrode and the second electrode,
wherein the second electrode covers the top surface of the structure body.

### Claim 13 (depends on 1)

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

### Claim 14 (depends on 1)

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

### Claim 15 (depends on 6)

The display device according to claim 6, wherein the first coloring layer and the second coloring layer are apart from each other.

### Claim 16 (depends on 6)

The display device according to claim 6, wherein the structure body and the second substrate overlap each other with an adhesive layer therebetween.