LIQUID CRYSTAL DISPLAY DEVICE

WIPO Patent Application WO/2020/121822

A1

The present invention provides a liquid crystal display device that prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer caused by decomposition of dyes and pigments in a liquid crystal display device manufacturing process and leakage of impurities contained in the dyes and pigments into a liquid crystal composition, and solves problems of display defects such as voids, uneven alignment, and screen burn.　The present invention solves the above problem by providing a liquid crystal display device having a first substrate (2) and a second substrate (3) disposed opposite to each other, a liquid crystal layer (4) filled between the first substrate and the second substrate, and a color filter (9) composed of a black matrix and at least an RGB three-color pixel portion, wherein the liquid crystal layer includes a specific compound, the RGB three-color pixel portion includes a specific compound as a color material, an alignment film is not provided on at least one substrate surface, and there is provided an alignment control layer formed from spontaneous alignment compounds contained in the liquid crystal layer or a polymer obtained by polymerization thereof.

HIRATA SHINICHI (JP)
OGAWA SHINJI (JP)
SAKURAI MUNENORI (JP)
KANDA RYO (JP)
FUNAKURA SEIJI (JP)
YAMAZAKI TATSUFUMI (JP)

PCT/JP2019/046532

June 18, 2020

November 28, 2019

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DAINIPPON INK & CHEMICALS (JP)

G02F1/1335; C09K19/12; C09K19/14; C09K19/16; C09K19/18; C09K19/20; C09K19/30; C09K19/38; C09K19/42; C09K19/54; C09K19/56; G02B5/20; G02F1/13; G02F1/1337

WO2018105439A1

2018-06-14

US20120038862A1

2012-02-16

OGAWA Shinji (JP)

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