# US 11,078,422 B2 · Liquid crystal display panel, method for manufacturing the same and liquid crystal composition

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- Number: US 11,078,422 B2
- Document ID: US11078422B2
- Status: Granted
- Kind: B2
- Application number: 15/926,968
- Filed: 2018-03-20
- Published: 2018-07-26
- Granted: 2021-08-03
- Earliest claimed: 2015-01-16
- Assignees: Samsung Display Co., Ltd.; Industrial Cooperation Foundation Chonbuk National University
- Applicants: Samsung Display Co., Ltd.; Industrial Cooperation Foundation Chonbuk National University
- Inventors: Shin Woong Kang; Kundu Sudarshan; Byung Wook Ahn; Keun Chan Oh; Chang Hun Lee; Soon Joon Rho; Jae Jin Lyu
- Web page: https://patentgrep.com/patent/US11078422B2

## CPC

- C09K 19/56: Aligning agents
- C09K 2323/00: Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
- C09K 2323/02: Alignment layer characterised by chemical composition
- G02F 1/1337: Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F 1/133711: {by organic films, e.g. polymeric films}
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- 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

An LCD panel, comprises substrates facing each other, a liquid crystal layer disposed between the substrates and liquid crystal alignment layers, each sandwiched between the liquid crystal layer and a respective one of the substrates, wherein the liquid crystal alignment layers comprises hydrocarbon derivative having perfluorocarbon group.

## Claims

### Claim 1

A liquid crystal composition comprising:
liquid crystals; and
a hydrocarbon derivative mixture comprising at least one compound having a perfluorocarbon group selected from a group of compounds represented by Formulas 3 to 4 and at least one compound represented by Formula 5:
where a is 0 or 1, n4 is a natural number from 1 to 6, and A is a photopolymerization reactive group,
where a is 0 or 1, n5 and n6 are natural numbers from 1 to 6, respectively, and A is a photopolymerization reactive group,
where n is a natural number from 6 to 26, and A is a photopolymerization reactive group,
wherein an amount of the hydrocarbon derivative mixture with respect to a total weight of the liquid crystal composition is from 0.05 wt % to 5 wt %.

### Claim 2 (depends on 1)

The liquid crystal composition of claim 1, wherein the photopolymerization reactive group comprises a (meth)acryloyl group.

### Claim 3 (depends on 1)

The liquid crystal composition of claim 1, wherein n in Formula 5 comprises a natural number from 10 to 26.

### Claim 4 (depends on 1)

The liquid crystal composition of claim 1, wherein the hydrocarbon derivative mixture with respect to the total weight of the liquid crystal composition is from 0.1 wt % to 3 wt %.

### Claim 5 (depends on 1)

The liquid crystal composition of claim 1, wherein the hydrocarbon derivative mixture with respect to the total weight of the liquid crystal composition is from 0.2 wt % to 2 wt %.