公开(公告)号：US10007149B2

公开(公告)日：2018-06-26

申请号：US15017797

申请日：2016-02-08

Applicant: Samsung Display Co., Ltd.

Inventor： Jin-Soo Jung ,  Suk Hoon Kang ,  In Ok Kim ,  Jun Woo Lee

IPC: G02F1/1337

CPC classification number: G02F1/133711 ,  G02F1/133707 ,  G02F1/133788 ,  Y10T428/10 ,  Y10T428/1005 ,  Y10T428/1023

Abstract: A method of manufacturing a photoalignment layer includes: applying a photoalignment agent including a copolymer of at least one of cyclobutanedianhydride and a cyclobutanedianhydride derivative, and diamine, and a crosslinking agent including an alkylene group having a formula —CnH2n—, wherein n is a natural number, on a substrate; pre-baking the photoalignment agent applied on the substrate to form a pre-baked photoalignment agent; hard-baking the pre-baked photoalignment agent to form a hard-baked photoalignment agent; irradiating the hard-baked photoalignment agent with a light source thereby photoaligning the photoalignment agent; and secondarily baking the photoalignment agent irradiated with the light source, where in the application of the photoalignment agent on the substrate, the photoalignment agent applied on an edge portion of the substrate is applied in about 30 to about 70 wt %, relative to the photoalignment agent applied on the center portion of the substrate.

公开(公告)号：US09952467B2

公开(公告)日：2018-04-24

申请号：US15006760

申请日：2016-01-26

Applicant: Samsung Display Co., Ltd.

Inventor： Jin-Soo Jung ,  Suk Hoon Kang ,  Jong Hwan Jeon ,  In Ok Kim ,  Jun Woo Lee ,  Baek Kyun Jeon

IPC: C09K19/00 ,  G02F1/1337 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/133723 ,  G02F1/133345 ,  G02F1/133788 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/136227 ,  G02F1/1368 ,  Y10T428/10 ,  Y10T428/1005 ,  Y10T428/1023

Abstract: A liquid crystal display is provided. A photo-alignment layer thereof includes a polyimide and a crosslinker including an alkylene group (—CnH2n—, where n is a natural number) and a plurality of crosslinking end groups, wherein the plurality of crosslinking end groups include at least two types of end groups or end group derivatives, each type having a different available functional group.

公开(公告)号：US20170023832A1

公开(公告)日：2017-01-26

申请号：US15003841

申请日：2016-01-22

Applicant: Samsung Display Co., Ltd.

Inventor： Suk Hoon Kang ,  Hoi-Lim Kim ,  Jong Hwan Jeon ,  Jin-Soo Jung ,  In Ok Kim ,  Baek Kyun Jeon

IPC: G02F1/1337 ,  C07D207/452 ,  C07D487/04

CPC classification number: G02F1/133788 ,  C07D207/452 ,  C07D487/04 ,  G02F1/133711 ,  G02F2001/133738

Abstract: A manufacturing method of a liquid crystal display, including: applying a photoalignment agent on a substrate; baking the applied photoalignment agent; forming a photoalignment layer by irradiating the baked photoalignment agent with polarized light; baking the photoalignment layer; and removing at least one decomposed unit by cleaning the baked photoalignment layer using a cleaning solution including at least one of propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, or ethyl lactate.

Abstract translation: 一种液晶显示器的制造方法，包括：在基板上涂布光
取向剂， 烘烤应用的光定位剂; 通过用偏振光照射烘烤的光定位剂来形成光取向层; 烘烤光对准层; 以及使用包含丙二醇单甲醚，丙二醇单甲醚乙酸酯或乳酸乙酯中的至少一种的清洗溶液清洗烘烤的光取向层，除去至少一个分解单元。