Search International and National Patent Collections

1. (WO2018180850) METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY ELEMENT

Pub. No.:    WO/2018/180850    International Application No.:    PCT/JP2018/011312
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 23 00:59:59 CET 2018
IPC: G02F 1/1337
Applicants: DIC CORPORATION
DIC株式会社
Inventors: GOTO Marina
後藤 麻里奈
INOUE Yuichi
井ノ上 雄一
Title: METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY ELEMENT
Abstract:
Provided is a method for manufacturing a liquid crystal display element, which comprises one to n separate and independent light irradiation steps for irradiating a liquid crystal composition containing a polymerizable compound affixed onto a substrate with light having a peak at 300-400 nm, and is characterized in that, when the concentration change amount Vk per unit minute of the concentration difference between the concentration (Ck) of the polymerizable compound after the liquid crystal composition containing 0.3 mass% of the polymerizable compound has been irradiated with light for five minutes under the light irradiation condition of a k-th light irradiation step (Sk) among the one to n light irradiation steps, and 0.3 mass% is represented by expression (1) in each of the steps, the average reaction velocity Vave of the polymerizable compound in all light irradiation steps (ΣSk) represented by expression (2) is controlled to 0.030-0.048 (mass%/min).