Competitive Reductive o-Debenzylation of Ethers and Esters<sup>1</sup>
作者:WALTER E. CONRAD、STANLEY M. DEC
DOI:10.1021/jo01105a031
日期:1958.11
ALIGNMENT AID, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:DIC Corporation
公开号:US20210171831A1
公开(公告)日:2021-06-10
Provided are an alignment aid that sufficiently exerts an alignment control force causing liquid crystal molecules to be vertically aligned and can reduce a change in pretilt angle over time, a liquid crystal composition containing the alignment aid, and a liquid crystal display device. The alignment aid of the present invention has the function of causing the liquid crystal molecules to be aligned spontaneously. In the light absorption spectrum of the alignment aid, the longest wavelength at which the absorbance is 0.5 is 330 nm or shorter. Preferably, the light absorption spectrum is measured on a solution prepared by dissolving the alignment aid in tetrahydrofuran at a concentration of 1000 ppm.
METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE
申请人:DIC Corporation
公开号:US20210223635A1
公开(公告)日:2021-07-22
It is a method for manufacturing a liquid crystal display device in which an anchoring force causing liquid crystal molecules to be vertically aligned can be exerted sufficiently. A liquid crystal display device (
1
) including two substrates AM and CF and a liquid crystal layer (
4
) sandwiched therebetween can be manufactured. The liquid crystal display device manufacturing method includes: a first step of subjecting a surface of one of the substrates AM and CM that is to be in contact with the liquid crystal layer (
4
) to hydrophilization treatment; and a second step of disposing the two substrates AM and CF so as to face each other such that the two substrates are in contact with a liquid crystal composition containing liquid crystal molecules and an alignment aid having a polar group and having the function of causing the liquid crystal molecules to be aligned spontaneously.