公开(公告)号：DE69114170D1

公开(公告)日：1995-12-07

申请号：DE69114170

申请日：1991-04-03

Applicant: IBM

Inventor： FUKUNAGA TETSUYA ,  IKEDA AYUMI ,  UEKI TOSHIHIRO

IPC: G02B5/20 ,  G02F1/1335 ,  G03F1/00 ,  G03F1/72 ,  G03F7/00 ,  G03F7/12

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.

公开(公告)号：CA2040306A1

公开(公告)日：1991-10-14

申请号：CA2040306

申请日：1991-04-12

Applicant: IBM

Inventor： FUKUNAGA TETSUYA ,  IKEDA AYUMI ,  UEKI TOSHIHIRO

IPC: G02B5/20 ,  G02F1/1335 ,  G03F1/00 ,  G03F1/72 ,  G03F7/00 ,  G02F1/133 ,  G03C5/56

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.