Invention Grant
- Patent Title: Pressure-sensitive adhesive and liquid crystal cell
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Application No.: US18008230Application Date: 2021-07-02
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Publication No.: US11976224B2Publication Date: 2024-05-07
- Inventor: Jung Sun You , Dong Hyun Oh , Jin Hong Kim , Jung Woon Kim , Min Jun Gim
- Applicant: LG Chem, Ltd.
- Applicant Address: KR Seoul
- Assignee: LG Chem, Ltd.
- Current Assignee: LG Chem, Ltd.
- Current Assignee Address: KR Seoul
- Agency: Lerner David LLP
- Priority: KR 20200081286 2020.07.02
- International Application: PCT/KR2021/008411 2021.07.02
- International Announcement: WO2022/005244A 2022.01.06
- Date entered country: 2022-12-05
- Main IPC: C09J183/04
- IPC: C09J183/04 ; G02F1/1339 ; B60J3/00 ; B60J3/06 ; G02F1/1337 ; G02F1/1343

Abstract:
A pressure-sensitive adhesive and a liquid crystal cell including the same are disclosed herein. In some embodiments, a pressure-sensitive adhesive having a storage elastic modulus of 700 kPa or more at a temperature of 25° C. and a frequency of 6 rad/sec, and a gel fraction of 35% or more, wherein the gel fraction is defined by Equation 1:
B/A×100 [Equation 1]
wherein, A is an initial mass (g) of the pressure-sensitive adhesive, B is a mass (g) of an insoluble content after the pressure-sensitive adhesive is immersed in a solvent at 60° C. for 24 hours and then dried at 150° C. for 30 minutes. The press-sensitive adhesive is advantageous for implementation into a flexible element between upper and lower substrates of a liquid crystal cell, and providing excellent electro-optical properties and appearance uniformity by minimizing defects.
B/A×100 [Equation 1]
wherein, A is an initial mass (g) of the pressure-sensitive adhesive, B is a mass (g) of an insoluble content after the pressure-sensitive adhesive is immersed in a solvent at 60° C. for 24 hours and then dried at 150° C. for 30 minutes. The press-sensitive adhesive is advantageous for implementation into a flexible element between upper and lower substrates of a liquid crystal cell, and providing excellent electro-optical properties and appearance uniformity by minimizing defects.
Public/Granted literature
- US20230279279A1 Pressure-Sensitive Adhesive and Liquid Crystal Cell Public/Granted day:2023-09-07
Information query
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