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：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.

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.