# US 10,481,425 B2 · Display panel

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- Number: US 10,481,425 B2
- Document ID: US10481425B2
- Status: Granted
- Kind: B2
- Application number: 14/957,111
- Filed: 2015-12-02
- Published: 2016-11-03
- Granted: 2019-11-19
- Earliest claimed: 2015-04-30
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Min Ha Hwang; Seung-Suk Yang; You Hyun Jeong; Joong Tae Kim; Da Young Lee; Kweon Sam Hong
- Web page: https://patentgrep.com/patent/US10481425B2

## CPC

- G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)}
- G02B 5/201: {in the form of arrays}
- G02F 1/133345: {Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence)}
- G02F 1/133514: {Colour filters}
- G02F 1/13394: {spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence)}
- G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)}
- G02F 1/136222: {Colour filters incorporated in the active matrix substrate}
- 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
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

A display panel may include the following elements: a substrate; a first-color filter, which overlaps the substrate and may include a first-color portion and a first-color part; a second-color filter, which may include a second-color portion and a second-color part; a third-color filter, which may include a third-color portion and a third-color part; a light-blocking structure, which may be positioned between the first-color part and the second-color part in a plan view of the display panel and may include the first-color portion, the second-color portion, and the third-color portion, wherein the first-color portion, the second-color portion, and the third-color portion are stacked in a direction perpendicular to the substrate.

## Claims

### Claim 1

A display panel comprising:
a substrate;
a first-color filter, which overlaps the substrate and comprises a first-color portion and a first-color part;
a second-color filter, which comprises a second-color portion and a second-color part;
a third-color portion; and
a light-blocking structure comprising the first-color portion, the second-color portion, and the third-color portion that are stacked in a direction perpendicular to the substrate in a stack structure,
wherein the first-color part is positioned in a color pixel of the display panel, wherein the color pixel of the display panel has two edges respectively extending straightly in different directions and connected to each other in a plan view, and
wherein the stack structure includes two stack structure portions in the plan view, wherein the two stack structure portions respectively continuously extend along the two edges of the color pixel of the display panel in the plan view.

### Claim 2 (depends on 1)

The display panel of claim 1, wherein the light-blocking structure displays a black color through subtractive mixing of colors of the first-color portion, the second-color portion, and the third-color portion.

### Claim 3 (depends on 1)

The display panel of claim 1, wherein a maximum thickness of the first-color portion is less than a maximum thickness of the first-color part.

### Claim 4 (depends on 1)

The display panel of claim 1 comprising:
a third-color filter, wherein the third-color portion is positioned between the first-color portion and the second-color portion and is separated from the third-color filter, and wherein the third-color portion and the third-color filter are formed of a same third-color material.

### Claim 5 (depends on 1)

The display panel of claim 1 comprising:
a transparent member formed of a colorless or white insulating material, wherein the second-color portion is positioned between the first-color portion and the transparent member in the direction perpendicular to the substrate.

### Claim 6 (depends on 5)

The display panel of claim 5 comprising:
an electrode; and
a passivation layer positioned between the electrode and the transparent member and directly contacting each of the electrode and the transparent member.

### Claim 7 (depends on 5)

The display panel of claim 5 comprising:
a spacer, wherein the transparent member is positioned between the second-color portion and the spacer in the direction perpendicular to the substrate and is wider than the spacer in a direction parallel to the substrate.

### Claim 8 (depends on 5)

The display panel of claim 5 comprising:
an electrode; and
a spacer directly contacting the electrode, positioned between the electrode and the substrate, spaced from the transparent member in a direction parallel to the substrate, and being narrower than the transparent member in the direction parallel to the substrate.

### Claim 9 (depends on 8)

The display panel of claim 8, wherein the first-color part is positioned between the spacer and the substrate.

### Claim 10 (depends on 8)

The display panel of claim 8, wherein a thickness of a combination of the spacer, a passivation layer, and the first-color part is greater or less than a thickness of a combination of the transparent member and the light-blocking structure by a margin that is in a range of 0.3 micrometer to 0.5 micrometer.

### Claim 11 (depends on 8)

The display panel of claim 8, wherein a liquid crystal layer portion is positioned between the electrode and one of the transparent member and the spacer in the direction perpendicular to the substrate.

### Claim 12 (depends on 5)

The display panel of claim 5 comprising:
a common electrode overlapping the substrate; and
a shielding electrode positioned between the common electrode and the transparent member.

### Claim 13 (depends on 12)

The display panel of claim 12 comprising:
a pixel electrode overlapping the first-color part, wherein the pixel electrode and the shielding electrode are formed of a same material.

### Claim 14 (depends on 1)

The display panel of claim 1 comprising:
a common electrode overlapping the substrate;
a shielding electrode positioned between the common electrode and the second-color portion; and
a pixel electrode overlapping the first-color part, wherein the pixel electrode and the shielding electrode are formed of a same material.

### Claim 15 (depends on 14)

The display panel of claim 14 comprising:
a spacer positioned between the common electrode and the first-color part and directly contacting at least one of the common electrode and the first-color part.

### Claim 16 (depends on 1)

The display panel of claim 1 comprising:
a signal line overlapping the substrate; and
a transistor electrically connected to the signal line, wherein at least one of the signal line and the transistor overlaps each of the first-color portion, the second-color portion, and the third-color portion in the direction perpendicular to the substrate.

### Claim 17 (depends on 1)

The display panel of claim 1 comprising:
a common electrode, wherein a portion of the common electrode is positioned between the second-color portion and the third-color portion in the direction perpendicular to the substrate.

### Claim 18 (depends on 17)

The display panel of claim 17 comprising:
a transparent member formed of a colorless or white insulating material, wherein the third-color portion is positioned between the transparent member and the portion of the common electrode in the direction perpendicular to the substrate.

### Claim 19 (depends on 1)

The display panel of claim 1 comprising:
a passivation layer, wherein a portion of the passivation layer is positioned between the second-color portion and the third-color portion in the direction perpendicular to the substrate.

### Claim 20 (depends on 19)

The display panel of claim 19, further comprising:
a transparent member formed of a colorless or white insulating material, wherein the third-color portion is positioned between the transparent member and the portion of the passivation layer in the direction perpendicular to the substrate.

### Claim 21 (depends on 1)

The display panel of claim 1, wherein:
the second-color part is positioned closer to the substrate than the second-color portion, and
the third-color portion is positioned between the second-color portion and the substrate, and directly contacts each of the first-color portion, the second-color portion, and the second-color part.

### Claim 22

A display panel comprising:
a substrate including a display area, the display area comprising a plurality of pixels, each of the pixels including a transmitting area;
a first-color filter disposed on the substrate, the first-color filter comprising a first pixel portion disposed in the transmitting area of a first pixel, and a first overlap portion connected to the first pixel portion;
a second-color filter disposed on the substrate, the second-color filter comprising a second pixel portion disposed in the transmitting area of a second pixel, and a second overlap portion connected to the second pixel portion; and
a third-color filter disposed on the substrate, the third-color filter comprising a third pixel portion disposed in the transmitting area of a third pixel,
wherein
the first overlap portion and the second overlap portion are stacked in a direction perpendicular to a surface of the display area to form a stack structure extending in a direction between the transmitting areas of adjacent pixels of the plurality of pixels in a plan view,
the stack structure continuously extends in the first direction along edges of two or more pixels that represent different colors and are arranged in a row in the first direction in the plan view, and
the display panel further comprises transistors disposed on the substrate.

### Claim 23 (depends on 22)

The display panel of claim 22, wherein a maximum thickness of the first overlap portion is less than a maximum thickness of the first pixel portion.

### Claim 24 (depends on 23)

The display panel of claim 23, further comprising a spacer disposed on the light-blocking structure.

### Claim 25 (depends on 24)

The display panel of claim 24, wherein the spacer has a color.

### Claim 26 (depends on 25)

The display panel of claim 25, further comprising an insulating layer disposed between the light-blocking structure and the spacer.

### Claim 27 (depends on 26)

The display panel of claim 26, wherein the insulating layer includes an organic material.
