Claims
- 1. A liquid crystal device, comprising:
- a pair of oppositely disposed substrates and a liquid crystal disposed between the substrates, one of the substrates further comprising in the order named (i) a color filter layer comprising a photosensitive polyamide resin having a colorant dispersed therein, (ii) a protective layer comprising a photosensitive polyamide resin, (iii) an indium-tin oxide film, and (iv) an alignment control film.
- 2. A device according to claim 1, wherein said protective layer comprises a cured film of a photosensitive polyamide including a photosensitive unit selected from the group consisting of:
- (1) benzoate units represented by ##STR4## wherein R.sub.1 is CHX.dbd.CY--COO--Z-- (wherein X is H or C.sub.6 H.sub.5, Y is H or CH.sub.3 and Z is C.sub.2 H.sub.5);
- (2) benzoate acrylate units represented by ##STR5## wherein Y is H or CH.sub.3, and (3) diphenyl ether units as represented by ##STR6## wherein R.sub.2 is independently CHX.dbd.CY--CONH--, CH.sub.2 .dbd.CY--COO--(CH.sub.2).sub.2 --OCO--, or CH.sub.2 .dbd.CY--COO--CH.sub.2 -- (wherein X is H or C.sub.6 H.sub.5 and Y is H or CH.sub.3).
- 3. A device according to claim 1, wherein said indium tin oxide film has been patterned by etching with a hydroiodic acid etchant containing hydroiodic acid at a concentration of 55-58 wt. %.
- 4. A device according to claim 1, wherein said indium tin oxide film has been patterned by etching with a mixture of a hydroiodic acid solution containing hydroiodic acid at 55-58 wt. % and an aqueous ferric chloride solution at a ratio of 2:1 to 3:1.
- 5. A device according to claim 1, wherein said indium tin oxide film has been patterned by etching following an annealing treatment which comprises heating at a temperature of 200.degree.-300.degree. C. and cooling at a rate of at most 100.degree. C./hour.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2-187936 |
Jul 1990 |
JPX |
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Parent Case Info
This application is a division of application Ser. No. 07/970,784, filed Nov. 3, 1992, now U.S. Pat. No. 5,278,683, which is a division of application Ser. No. 07/728,707, filed Jul. 11, 1991, now U.S. Pat. No. 5,185,059, issued Feb. 9, 1993.
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Entry |
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Divisions (2)
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Number |
Date |
Country |
Parent |
970784 |
Nov 1992 |
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Parent |
728707 |
Jul 1991 |
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