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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0213074 (1994-03-15) |
우선권정보 | JP-0053473 (1993-03-15) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 299 인용 특허 : 0 |
The columnar spacer included in a liquid crystal display device is formed of a photosensitive resin selected from the group consisting of acrylic polymers and acrylic copolymers, said photosensitive resin having at least one atomic group selected from the group consisting of an epoxy group, an imide
The columnar spacer included in a liquid crystal display device is formed of a photosensitive resin selected from the group consisting of acrylic polymers and acrylic copolymers, said photosensitive resin having at least one atomic group selected from the group consisting of an epoxy group, an imide bond, an ether bond, an ester bond and an urethane bond. The particular photosensitive resin used for forming the columnar spacers permits the surface of a polyimide alignment film to be prevented from being swollen by or dissolved in a developing solution in the subsequent step so as to maintain the crystal orientation satisfactorily.
A liquid crystal display device, comprising: first and second substrates facing each other; means for spacing said first and second substrates, said spacing means being columnar and made of a photosensitive resin selected from the group consisting of acrylic polymers and acrylic copolymers, and said
A liquid crystal display device, comprising: first and second substrates facing each other; means for spacing said first and second substrates, said spacing means being columnar and made of a photosensitive resin selected from the group consisting of acrylic polymers and acrylic copolymers, and said photosensitive resin having at least one side chain selected from the group consisting of an epoxy group, an imide bond, an ether bond, and ester bond and a urethane bond; a light transmission control layer positioned in a space between said first and second substrates held apart from each other by said spacing means; and control means for controlling said light transmission control layer so as to turn light on or off, wherein said acrylic polymer is a polymer of at least one monomer selected from the group consisting of monomethoxy 1,6-hexanediol monoacrylate, monomethoxy tripropyleneglycol monoacrylate, monomethoxy neobenzylglycol alkoxyl monoacrylate, monomethoxy trimethylolpropane alkoxy diacrylate, and cardoepoxyacrylate.
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