ORIENTATION FILM MATERIAL AND LIQUID CRYSTAL DISPLAY DEVICE

• Main Authors: TOMIOKA YASUSHI, OKUYAMA KENTARO
• Format: Patent
• Language: English; Japanese
• Published: 13.10.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide an orientation film material and a liquid crystal display device with improved shock resistance.SOLUTION: A display device includes an array substrate 10, a counter substrate 20, a liquid crystal layer 50 sealed between the array substrate 10 and the counter substrate 20, a first orientation film AL1 and a second orientation film AL2 provided to the array substrate 10 and the counter substrate 20, respectively, and in contact with the liquid crystal layer 50. The liquid crystal layer 50 is a polymer dispersed liquid crystal LC including a polymer network 51 formed in a mesh shape, and a liquid crystal molecule 52 dispersedly held in a space in the polymer network 51. The first orientation film AL1 and the second orientation film AL2 include a cross-linking group connecting to the polymer network 51.SELECTED DRAWING: Figure 7 【課題】耐衝撃性を向上できる配向膜材料及び液晶表示装置を提供する。【解決手段】表示装置は、アレイ基板１０と、対向基板２０と、アレイ基板１０と対向基板２０との間に封入される液晶層５０と、アレイ基板１０及び対向基板２０にそれぞれ設けられ、液晶層５０に接する第１配向膜ＡＬ１及び第２配向膜ＡＬ２と、を備え、液晶層５０は、網目状に形成されたポリマーネットワーク５１と、ポリマーネットワーク５１の隙間に分散保持された液晶分子５２と含む高分子分散型液晶ＬＣであり、第１配向膜ＡＬ１及び第２配向膜ＡＬ２は、ポリマーネットワーク５１と連結する光架橋基を有する。【選択図】図７