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公开(公告)号：DE3884313D1
公开(公告)日：1993-10-28
申请号：DE3884313
申请日：1988-07-22
Applicant: TOSHIBA KAWASAKI KK , IBM
Inventor： MATINO HARUHIRO , UEKI TOSHIHIRO , OANA YASUHISA , KAJIMURA MOTOJI
IPC: G02B5/20 , G02F1/1335 , G09F9/35 , G02F1/133
Abstract: A color liquid crystal display having chromatic pixels and achromatic pixels, comprises: color filters (12, 14, 16) formed at locations corresponding to said chromatic pixels (13, 15, 17) and having a light transmitting area for predetermined wavelength; and translucent filters (18) formed at locations corresponding to said achromatic pixels (19) and near an outer periphery of locations corresponding to said chromatic pixels so as to be overlapped with said color filters.
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公开(公告)号：CA1283473C
公开(公告)日：1991-04-23
申请号：CA572879
申请日：1988-07-22
Applicant: IBM
Inventor： MATINO HARUHIRO , UEKI TOSHIHIRO , OANA YASUHISA , KAJIMURA MOTOJI
IPC: G02B5/20 , G02F1/1335 , G09F9/35 , G02F1/133
Abstract: A colour liquid crystal display compirses colour filters formed at locations corresponding to chromatic pixels and having a light transmitting area for predetermined wavelength. Translucent filters formed at locations corresponding to achromatic pixels, and near an outer periphery of locations corresponding to the chromatic pixels, are overlapped with the colour filters. A manufacturing method for realizing the above comprises the steps of: forming material constituting translucent filters on a substrate; removing the material constituting the translucent filters at locations corresponding to pixels on which colour filters are to be formed from the substrate; and forming the material constituting the colour filters at colour filter locations corresponding to pixels on which the colour filters are to be formed on the substrate and at locations which are near the colour filter locations so as to be overlapped with the material constituting the translucent filters.
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公开(公告)号：DE69114170T2
公开(公告)日：1996-05-30
申请号：DE69114170
申请日：1991-04-03
Applicant: IBM
Inventor： FUKUNAGA TETSUYA , IKEDA AYUMI , UEKI TOSHIHIRO
Abstract: A method is provided for correcting defects in colour filters containing coloured pixels. The method comprises: applying a negative type photosensitive resin, in which a pigment is dispersed, to the colour pixels that have defects; exposing the photosensitive resin to light through the coloured pixels having the defect; and developing the exposed photosensitive resin. If the defects occur in just one colour of pixel then the pigment dispersed in the resin is of that particular colour. However, if the defects spread over several pixels of different colours then a grey pigment is dispersed in the resin.
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公开(公告)号：DE68924766D1
公开(公告)日：1995-12-14
申请号：DE68924766
申请日：1989-12-13
Applicant: IBM
Inventor： IKEDA AYUMI , KOSEKI TOSHIHIKO , UEKI TOSHIHIRO
IPC: G02F1/1335 , G02F1/136 , G02F1/1362 , G02F1/1368 , H01L29/786 , G02F1/133
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公开(公告)号：CA1319186C
公开(公告)日：1993-06-15
申请号：CA579595
申请日：1988-10-07
Applicant: IBM , TOSHIBA KK
Inventor： UEKI TOSHIHIRO , OANA YASUHISA , TOMII HITOSHI
IPC: G09F9/35 , G02B5/20 , G02F1/1335 , G02F1/133
Abstract: Disclosed is a color liquid crystal display device having a plurality of pixels, in which conductive films are arranged at regions corresponding to the respective pixels, a light-shielding conductive layer is connected to the conductive films and extends in a region between the pixels, and color filters are formed on the conductive films. In the method of manufacturing such color liquid crystal display device, a light-shielding conductive layer is formed on a substrate, part of the light-shielding layer corresponding to a pixel for which a filter is to be formed is removed from the substrate on which the light-shielding layer is formed and simultaneously the light-shielding layer is partially removed so that portions thereof corresponding to at least pixels having different colors are electrically insulated from each other, a conductive film is formed at a portion corresponding to the pixel for which the filter is to be formed, and films having colors corresponding to those of the respective pixels are formed on the surface of the conductive film.
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Patent Agency Ranking
公开(公告)号：CA2002426A1
公开(公告)日：1990-05-11
申请号：CA2002426
申请日：1989-11-07
Applicant: IBM
Inventor： IKEDA AYUMI , KOSEKI TOSHIHIKO , UEKI TOSHIHIRO
IPC: G02F1/1335 , G02F1/1337 , C08L79/08 , G02F1/133
Abstract: The disclosure describes the provision of a liquid crystal color display having a layer which functions both as a color filter of good spectroscopic light transmissivity and as a uniform liquid crystal orientation layer. Such a dual function film comprises a polyimide obtained by the condensation polymerization reaction of a diamine component and an acid anhydride. JA9-88-028
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公开(公告)号：DE69502225D1
公开(公告)日：1998-06-04
申请号：DE69502225
申请日：1995-02-14
Applicant: IBM , FUJI PHOTO FILM CO LTD
Inventor： TSUJIMURA NAOYUKI , UEKI TOSHIHIRO , USHIMARU AKIRA , KOBAYASHI KESANAO
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公开(公告)号：DE3852617D1
公开(公告)日：1995-02-09
申请号：DE3852617
申请日：1988-09-29
Applicant: TOSHIBA KAWASAKI KK , IBM
Inventor： UEKI TOSHIHIRO , OANA YASUHISA , TOMII HITOSHI
IPC: G09F9/35 , G02B5/20 , G02F1/1335 , G02F1/133
Abstract: Disclosed is a color liquid crystal display device having a plurality of pixels (4R, 4G, 4B), in which conductive films (19R, 19G, 19B) are arranged at regions corresponding to the respective pixels, a light-shielding conductive layer (18R, 18G, 18B) is connected to the conductive films and extends in a region between the pixels, and color filters (8R, 8G, 8B) are formed on the conductive films. In the method of manufacturing such color liquid crystal display device, a light-shielding conductive layer is formed on a substrate (2), part of the light-shielding layer corresponding to a pixel for which a filter is to be formed is removed from the substrate on which the light-shielding layer is formed and simultaneously the light-shielding layer is partially removed so that portions thereof corresponding to at least pixels having different colors are electrically insulated from each other, a conductive film is formed at a portion corresponding to the pixel for which the filter is to be formed, and films having colors corresponding to those of the respective pixels are formed on the surface of the conductive film.
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公开(公告)号：CA2040306C
公开(公告)日：1994-07-05
申请号：CA2040306
申请日：1991-04-12
Applicant: IBM
Inventor： FUKUNAGA TETSUYA , IKEDA AYUMI , UEKI TOSHIHIRO
Abstract: The disclosure deals with color filters used in liquid crystal devices and, more particularly, with the repair of defects. When a given defect is one color, the defective portion is filled with a negative type photosensitive resin of the same color as the defective pixels. When a defect extends over pixels of various different colors, the defective area is filled with a negative type photosensitive resin of gray. Repair is readily effected since self-alignment can be achieved using the filter as a photomask.
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公开(公告)号：CA2006244A1
公开(公告)日：1990-06-21
申请号：CA2006244
申请日：1989-12-20
Applicant: IBM
Inventor： MATINO HARUHIRO , UEKI TOSHIHIRO
IPC: G02F1/133 , G02F1/1335 , G02F1/1343 , G02F1/1362 , G09G3/20 , G09G3/36
Abstract: The present invention relates to a liquid crystal display device (DU) comprising a plurality of display units each having n (where n is a positive integer) pixels (picture elements) (T1, T2, T3, T4 : S1, S2, S3), each of which pixels can be made either to transmit or to receive light, means for applying a voltage to the region of the liquid crystal (3) adjacent to each pixel in order to control the transmission characteristic of each pixel and a light transmission factor control layer (31, 32, 33, 34) for controlling the light transmission factor of each pixel. According to the invention, the display device is characterised in that the ratios between the light transmission factors of the pixels in each display unit are 2 : 2 : 2 : 2 .
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