The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 29, 2000
Filed:
Jun. 29, 1998
Applicant:
Inventors:
Hisashi Kadota, Kanagawa, JP;
Toshihiko Iwanaga, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345 88 ; 349 43 ; 349155 ;
Abstract
The present invention provides a color display device in which the shape of an on-chip color filter pattern is improved to remove differences in height on the surface of a driving substrate. In the color display device, normal color filters are formed in alignment with pixel apertures, and a dummy color filter is formed in the spaces between the respective color filters apart from contact holes. Differences in height between the color filters and the spaces between the respective color filters are removed to obtain a color display device having excellent quality of liquid crystal alignment.