# US 10,503,014 B2 · Liquid crystal display comprising first and second color conversion layers and a thin film transistor on an upper substrate and method of manufacturing the same

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- Number: US 10,503,014 B2
- Document ID: US10503014B2
- Status: Granted
- Kind: B2
- Application number: 15/666,945
- Filed: 2017-08-02
- Published: 2018-02-08
- Granted: 2019-12-10
- Earliest claimed: 2016-08-03
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Kyung-Bae Kim; Il Gon Kim; Hyun Joon Kim
- Web page: https://patentgrep.com/patent/US10503014B2

## CPC

- G02F 1/133528: {Polarisers}
- G02F 1/133345: {Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence)}
- G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)}
- G02F 1/133514: {Colour filters}
- G02F 1/133617: {Illumination with ultraviolet light; Luminescent elements or materials associated to the cell}
- G02F 1/136227: {Through-hole connection of the pixel electrode to the active element through an insulation layer}
- G02F 1/133305: {Flexible substrates, e.g. plastics, organic film}
- G02F 1/133357: {Planarisation layers}
- G02F 1/133519: {Overcoatings}
- G02F 1/133548: {Wire-grid polarisers}
- 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

## Abstract

A liquid crystal display according to an exemplary embodiment includes: a first substrate; a second substrate overlapping and separated from the first substrate; a liquid crystal layer between the first substrate and the second substrate; a first color conversion layer, a second color conversion layer, and a transmitting layer between the first substrate and the liquid crystal layer; a first polarization layer between the first color conversion layer and the liquid crystal layer, between the second color conversion layer and the liquid crystal layer, and between the transmitting layer and the liquid crystal layer; and a thin film transistor between the first polarization layer and the liquid crystal layer.

## Claims

### Claim 1

A liquid crystal display, comprising:
a first substrate;
a second substrate facing and spaced from the first substrate;
a liquid crystal layer between the first substrate and the second substrate;
a first color conversion layer, a second color conversion layer, and a transmitting layer between the first substrate and the liquid crystal layer;
a first polarization layer between the first color conversion layer and the liquid crystal layer, between the second color conversion layer and the liquid crystal layer, and between the transmitting layer and the liquid crystal layer;
a thin film transistor between the first polarization layer and the liquid crystal layer;
a second electrode between the second substrate and the liquid crystal layer;
a second polarization layer positioned at a surface of the second substrate in which the second electrode is not positioned; and
a light unit adjacent the second polarization layer,
wherein incident light from the light unit sequentially passes through the second substrate, the liquid crystal layer, and the first substrate to be emitted.

### Claim 2 (depends on 1)

The liquid crystal display as claimed in claim 1, further comprising:
a light blocking layer between the first color conversion layer and the second color conversion layer and between one of the first color conversion layer and the second color conversion layer, and the transmitting layer.

### Claim 3 (depends on 2)

The liquid crystal display as claimed in claim 2, further comprising
a light blocking member between the thin film transistor and the liquid crystal layer.

### Claim 4 (depends on 1)

The liquid crystal display as claimed in claim 1, further comprising
a first electrode connected to the thin film transistor.

### Claim 5 (depends on 4)

The liquid crystal display as claimed in claim 4, further comprising
a light blocking member between the first electrode and the liquid crystal layer.

### Claim 6 (depends on 1)

The liquid crystal display as claimed in claim 1, further comprising
a light blocking member between the thin film transistor and the liquid crystal layer.

### Claim 7 (depends on 1)

The liquid crystal display as claimed in claim 1, further comprising
a first color filter between the first color conversion layer and the first substrate and a second color filter positioned between the second color conversion layer and the first substrate.

### Claim 8 (depends on 7)

The liquid crystal display as claimed in claim 7, wherein
the first color conversion layer is a red color conversion layer, the first color filter is a red color filter,
the second color conversion layer is a green color conversion layer, and the second color filter is a green color filter.

### Claim 9 (depends on 1)

The liquid crystal display as claimed in claim 1, wherein
the liquid crystal display is bent to have a curvature.

### Claim 10

A method for manufacturing a liquid crystal display, comprising:
forming a first color conversion layer, a second color conversion layer, and a transmitting layer on a first substrate;
forming a planarization layer on the first color conversion layer, the second color conversion layer, and the transmitting layer;
forming a first polarization layer on the planarization layer;
forming a thin film transistor on the first polarization layer;
forming a first electrode connected to the thin film transistor;
forming a second electrode at a first surface of a second substrate;
forming a second polarization layer at a second surface of the second substrate; and
forming a light unit adjacent the second polarization layer,
wherein incident light from the light unit sequentially passes through the second substrate, the liquid crystal layer, and the first substrate to be emitted.

### Claim 11 (depends on 10)

The method as claimed in claim 10, further comprising,
before forming the first color conversion layer, the second color conversion layer, and the transmitting layer,
forming a light blocking layer positioned between the first color conversion layer and the second color conversion layer and between one of the first color conversion layer and the second color conversion layer, and the transmitting layer.

### Claim 12 (depends on 10)

The method as claimed in claim 10, wherein
the first color conversion layer is a red color conversion layer, and the second color conversion layer is a green color conversion layer.

### Claim 13 (depends on 10)

The method as claimed in claim 10, further comprising forming a light blocking member on the first electrode.

### Claim 14 (depends on 10)

The method as claimed in claim 10, further comprising, between forming the thin film transistor and forming the first electrode, forming a light blocking member on the thin film transistor.

### Claim 15 (depends on 10)

The method as claimed in claim 10, further comprising, between forming the first polarization layer and forming the thin film transistor, forming a polarization insulating layer on the first polarization layer.