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.

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.

公开(公告)号：DE3884313T2

公开(公告)日：1994-04-21

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.

公开(公告)号：DE3852617T2

公开(公告)日：1995-07-06

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.

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.

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.

公开(公告)号：JPH01142712A

公开(公告)日：1989-06-05

申请号：JP29167787

申请日：1987-11-18

Applicant: IBM ,  TOSHIBA CORP

Inventor： UEKI TOSHIHIRO ,  TOMII HITOSHI ,  OANA YASUHISA

IPC: G09F9/35 ,  G02B5/20 ,  G02F1/1335

Abstract: PURPOSE: To provide a color liquid crystal display device with color filters and light shielding layers without increasing the number of processes by electrically connecting the conductive light shielding layers on the conductive films to be laminated with the color filters and utilizing these layers for shorting electrodes for electrodeposition. CONSTITUTION: A glass substrate 1 is provided with an Mo-Ta film. This Mo-Ta is subjected to a photographic process so as to have microspacings 20 between the adjacent light shielding layers (18R, 18G, 18B) between pixels to be formed with the filters of separate colors exclusive of the outer side slightly from the inner side from the positions corresponding to pixel electrodes and the junctures with the pixels to be formed with the filters of the same colors of the same lines. Next, the entire surface is covered with ITO and the other exclusive of the ITO made to remain only in the positions corresponding to the pixel electrodes is etched away, by which films 19R to 19G are formed. Next, the G color filters 8G are formed on the films 8G with the conductive light shielding films 19G for connecting the films 18G as the shorting electrodes for electrodeposition. Henceforce, 8R, 8B are electrodeposited in the same manner. Finally, a counter glass substrate is superposed on the substrate via oriented films. The light shielding layers and the electrodeposited filters are formed by the smaller number of stages according to such constitution.

公开(公告)号：JPS6459318A

公开(公告)日：1989-03-07

申请号：JP20496787

申请日：1987-08-18

Applicant: IBM ,  TOSHIBA CORP

Inventor： MACHINO HARUHIRO ,  UEKI TOSHIHIRO ,  OANA YASUHISA ,  KAJIMURA MOTOJI

IPC: G02B5/20 ,  G02F1/1335 ,  G09F9/35

Abstract: PURPOSE: To make the contrast of a display picture high and to make a light-shielding layer thin by providing a color filter formed at a position corresponding to a chromatic color picture element and a translucent filter formed in the vicinity of the outer periphery of the position corresponding to an achromatic color picture element and the position corresponding to a picture element where the color filter is formed. CONSTITUTION: Only the filters 12, 14 and 16 of respective colors are formed on a side a little inside from the position corresponding to a picture element electrode 6 formed on a glass substrate 2 at the filter layers 9 of red, green and blue picture elements 13, 15 and 17, namely chromatic picture elements, and the translucent filter 18 and the filters 12, 14 and 16 of the respective colors are laminated at an outside position than a little inside from the position corresponding to the picture element electrode 6 formed on the position other than that, namely on the glass substrate 2. The filter layer 9 of the achromatic picture element 19 having the translucent filter 18 is constituted by laminating the translucent filter 18 and transparent material 20. Also, the light-shielding layer 21 is formed by laminating the filters 12, 14 and 16 of the respective colors and the translucent filter 18. Thus, high contrast is obtained and the light-shielding layer is made thin.