# US 2021/0341806 A1 · Liquid crystal panel and manufacturing method thereof

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- Number: US 2021/0341806 A1
- Document ID: US20210341806A1
- Status: Published application
- Kind: A1
- Application number: 16/619,470
- Filed: 2019-11-12
- Published: 2021-11-04
- Earliest claimed: 2019-09-12
- Assignees: Tcl China Star Optoelectronics Technology Co., Ltd.
- Applicants: Tcl China Star Opoelectronics Technology Co., Ltd.
- Inventors: Yun YU
- Web page: https://patentgrep.com/patent/US20210341806A1

## CPC

- G02F 1/1339: Gaskets; Spacers; Sealing of cells
- G02F 1/136222: {Colour filters incorporated in the active matrix substrate}
- G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)}
- G02F 1/136209: {Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element}
- G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)}
- 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 panel provided by some embodiments of the present disclosure includes: a color filter substrate and an array substrate disposed opposite to each other; and a sealant disposed between the color filter substrate and the array substrate. Liquid crystals are disposed in a region surrounded by the color filter substrate, the array substrate, and the sealant, to form a liquid crystal layer. The liquid crystal panel includes an active area, and a non-active area disposed around a periphery of the active area. A light shielding layer is disposed on a side of a portion of the color filter substrate. The portion of the color filter substrate is located in the non-active area, and the side of the portion of the color filter substrate is away from the liquid crystal layer. The solution may enhance a curing effect of the sealant.

## Claims

### Claim 1

A liquid crystal panel, comprising:
a color filter substrate and an array substrate disposed opposite to each other; and
a sealant disposed between the color filter substrate and the array substrate; wherein liquid crystals are disposed in a region surrounded by the color filter substrate, the array substrate, and the sealant, to form a liquid crystal layer; wherein the liquid crystal panel comprises an active area, and a non-active area disposed around a periphery of the active area; wherein the color filter substrate comprises a first portion located in the active area, and a second portion located in the non-active area; and wherein a light shielding layer is disposed on a side of the second portion of the color filter substrate; wherein the second portion of the color filter substrate is located in the non-active area, and the side of the second portion of the color filter substrate is away from the liquid crystal layer.

### Claim 2 (depends on 1)

The liquid crystal panel of claim 1, wherein the liquid crystal panel further comprises a first polarizer film disposed on a side of the color filter substrate; and wherein the side of the color filter substrate is away from the liquid crystal layer.

### Claim 3 (depends on 2)

The liquid crystal panel of claim 2, wherein the first polarizer film is disposed between the light shielding layer and the color filter substrate.

### Claim 4 (depends on 2)

The liquid crystal panel of claim 2, wherein the first polarizer film is disposed on a side of the light shielding layer; and wherein the side of the light shielding layer is away from the color filter substrate.

### Claim 5 (depends on 1)

The liquid crystal panel of claim 1, wherein the first portion of the color filter substrate has a black matrix; wherein the first portion of the color filter substrate is located in the active area; wherein the second portion of the color filter substrate does not have a black matrix; and wherein the second portion of the color filter substrate is located in the non-active area.

### Claim 6 (depends on 1)

The liquid crystal panel of claim 1, wherein the light shielding layer comprises a black light shielding material.

### Claim 7 (depends on 6)

The liquid crystal panel of claim 6, wherein the black light shielding material comprises a carbon black.

### Claim 8 (depends on 1)

The liquid crystal panel of claim 1, wherein the array substrate is a thin film transistor array substrate.

### Claim 9 (depends on 1)

The liquid crystal panel of claim 1, wherein the liquid crystal panel further comprises an alignment layer disposed on the color filter substrate and/or the array substrate; and wherein the alignment layer is in contact with the liquid crystal layer.

### Claim 10

A method of manufacturing a liquid crystal panel, comprising:
providing a color filter substrate and an array substrate;
dropping corresponding liquid crystals into each of a plurality of spaced regions on the color filter substrate or the array substrate, and coating the color filter substrate or the array substrate with a corresponding sealant around a corresponding periphery of the corresponding liquid crystals of each region, to form a corresponding liquid crystal layer;
assembling the color filter substrate and the array substrate; wherein the color filter substrate and the array substrate comprise a plurality of active areas, and a plurality of corresponding non-active areas disposed around a plurality of corresponding peripheries of the active areas and disposed opposite to the active areas; and wherein the color filter substrate comprises a plurality of first portions located in the corresponding active areas and a plurality of second portions located in the corresponding non-active areas; and
disposing a corresponding light shielding layer on a corresponding side of each second portion of the color filter substrate; wherein each second portion of the color filter substrate is located in the corresponding non-active area, and the corresponding side of each second portion of the color filter substrate is away from the corresponding liquid crystal layer.

### Claim 11 (depends on 10)

The method of manufacturing the liquid crystal panel of claim 10, wherein after the color filter substrate and the array substrate are assembled, and before the corresponding light shielding layer is disposed on the corresponding side of each second portion of the color filter substrate, the method further comprises:
curing, from a color filter substrate side, each sealant with ultraviolet (UV) light.

### Claim 12 (depends on 11)

The method of manufacturing the liquid crystal panel of claim 11, wherein after each sealant is cured, the method further comprises:
performing, from the color filter substrate side, photoalignment on the corresponding liquid crystals of each region.

### Claim 13 (depends on 12)

The method of manufacturing the liquid crystal panel of claim 12, wherein after the photoalignment is performed, from the color filter substrate side, on the corresponding liquid crystals of each region, the method further comprises:
disposing each first polarizer film on a side of the color filter substrate, and disposing each second polarizer film on a side of the array substrate; wherein the side of the color filter substrate is away from each liquid crystal layer; and wherein the side of the array substrate is away from each liquid crystal layer.

### Claim 14 (depends on 13)

The method of manufacturing the liquid crystal panel of claim 13, wherein each first polarizer film is disposed between the corresponding light shielding layer and the color filter substrate.

### Claim 15 (depends on 14)

The method of manufacturing the liquid crystal panel of claim 14, wherein each first polarizer film is disposed on a corresponding side of the corresponding light shielding layer; wherein the corresponding side of the corresponding light shielding layer is away from the color filter substrate.

### Claim 16 (depends on 10)

The method of manufacturing the liquid crystal panel of claim 10, wherein each first portion of the color filter substrate has a corresponding black matrix; wherein each first portion of the color filter substrate is located in the corresponding active area; wherein each second portion of the color filter substrate does not have a corresponding black matrix; and wherein each second portion of the color filter substrate is located in the corresponding non-active area.

### Claim 17 (depends on 10)

The method of manufacturing the liquid crystal panel of claim 10, wherein each light shielding layer comprises a corresponding black light shielding material.

### Claim 18 (depends on 17)

The method of manufacturing the liquid crystal panel of claim 17, wherein each black light shielding material comprises a corresponding carbon black.

### Claim 19 (depends on 10)

The method of manufacturing the liquid crystal panel of claim 10, wherein the array substrate is a thin film transistor array substrate.

### Claim 20 (depends on 10)

The method of manufacturing the liquid crystal panel of claim 10, wherein the liquid crystal panel further comprises a plurality of alignment layers disposed on the color filter substrate and/or the array substrate; and wherein each alignment layer is in contact with the corresponding liquid crystal layer.
