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1. 发明专利

JPH0370800A CLEANING AGENT FOR LIQUID CRYSTAL CELL AND CLEANING 失效
公开(公告)号：JPH0370800A
公开(公告)日：1991-03-26
申请号：JP20919389
申请日：1989-08-10
申请人： HITACHI LTD , LION CORP
发明人： OTSU YASUHIDE , OTA MASATO , USHIYAMA HIROTOSHI , SHINODA JUNICHI
IPC分类号： B08B3/08 , C11D10/02
摘要： PURPOSE:To obtain a cleaning agent capable of efficiently washing liquid crystal cells without using a fluorocarbon and without causing problems of environmental pollution, comprising a nonionic surfactant, chelating agent and alkali substance. CONSTITUTION:The objective cleaning agent comprising (A) a nonionic surfactant composed of preferably an adduct of an aliphatic alcohol, alkylphenol, aliphatic amine, fatty acid amide or fatty acid with an alkylene oxide (5-20 average number of mols of addition), (B) a chelating agent composed of one or more of nitrilotriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, hydroxyethanediphosphonic acid and salts thereof and (C) an alkali substance preferably composed of NaOH, KOH or alkanolamine.

2. 发明专利

JPH0980367A LIQUID CRYSTAL CELL AND SPACER SHEET SEPARATING DEVICE 失效
公开(公告)号：JPH0980367A
公开(公告)日：1997-03-28
申请号：JP23283995
申请日：1995-09-11
申请人： HITACHI LTD
发明人： TAKABE YOUJIROU , OTA MASATO
IPC分类号： G02F1/13
摘要： PROBLEM TO BE SOLVED: To surely separate a liquid crystal cell or spacer sheet by separating operation when a board, the spacer sheet, and the liquid crystal cell are separated individually. SOLUTION: This device has a block 5 stacked between a couple of boards with a spacer sheet interposed between plural liquid crystal cells, a board and sheet conveying robot 6 which is installed movably between a spacer sheet taking-out position 8 and a board taking-out position 9, and a liquid crystal cell conveying robot 7 which is installed movably between the block 5 and a liquid crystal cell taking-out position 10, and the conveying robots 6 and 7 are provided with an array of plural suction pads 13 arrayed in parallel at least one couple of side parts on the top surface of the block 5 and at positions corresponding to a center part parallel to the side parts, and each array is sucked from one side part to the other side part sequentially with a time difference and separated into individuals, which are then conveyed.

3. 发明专利

JPH1115002A LIQUID CRYSTAL CELL GAP FORMING DEVICE 失效
公开(公告)号：JPH1115002A
公开(公告)日：1999-01-22
申请号：JP16606097
申请日：1997-06-23
申请人： HITACHI LTD
发明人： TAKABE YOUJIROU , OTA MASATO , MIYOSHI KAORU , MIWA HIROAKI
IPC分类号： G02F1/1339
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal cell gap forming device capable of forming a prescribed cell gap while reducing the warpage of glass substrates. SOLUTION: This device is provided with heating presses 21, 22 which pressurize/heat a liquid crystal cell 15 which is constituted by overlapping two sheets of glass substrates while interposing a sealant in between their peripheries every one sheet to heat the two sheets of glass substrates to a temp. equal to or higher than a glass transition temp. and harden the sealant while holding a liquid crystal cell gap being the gap between the two sheets of glasses uniformly and a hardening furnance which activates the hardening of the sealant by heating the liquid crystal cell whose sealant is hardened in the heating press 21 at a prescribed temp. while throwing it into the hardening furnace. Then, after the glass substrates constituting the cell 15 are cooled to a temp. equal to or lower the glass transition temp. by providing a cooling press 23 pressuring/ cooling the cell 15 at the downstream of the heating presses 21, 22 and at the upstream of the hardening furnance, the cell 15 is thrown into the hardening furnance.

4. 发明专利

JP2000137236A LIQUID CRYSTAL DISPLAY ELEMENT AND ITS PRODUCTION 失效
公开(公告)号：JP2000137236A
公开(公告)日：2000-05-16
申请号：JP31061298
申请日：1998-10-30
申请人： HITACHI LTD
发明人： MIWA HIROAKI , SUDO RYOICHI , TAJIMA TETSUO , OTA MASATO , ASUMA HIROAKI
IPC分类号： G02F1/13 , G02F1/1339 , G02F1/1341
摘要： PROBLEM TO BE SOLVED: To make it possible to reduce as much as possible inferior display caused by the defects at the time of production and the electrolytic corrosion due to the residual liquid crystal at the display operation time by providing partition walls at the both sides of an enclosing port, each of which walls is formed with a chemical reaction type adhesive and is provided between from the outer peripheral part of a adhesive to the ends of transparent substrates and further on the substrate terminal surfaces, ranging with the ends, of the transparent substrates. SOLUTION: An adhesive 2 is used for unifying a couple of transparent substrates 1 which keeping a prescribed small space between the substrates is provided and a display area is formed so as to be surround. At one side of the both transparent substrates 1, an enclosing port 3 for enclosing a liquid crystal is formed. A partition walls 4 each being formed using a chemical reaction type adhesive 2 are provided at the both sides of the enclosing part 3 and each partition wall is formed between from the outer peripheral part of the adhesive 2 to the ends of the transparent substrates 1 and on the terminal surfaces, ranging with the ends, of the transparent substrates 1. The enclosing port 3 is sealed using an appropriate adhesive after enclosing liquid crystal. Further, a display electrode, a liquid crystal orientation film or the like are successively formed on the transparent substrate 1 on which a display electrode has been formed.

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