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:
Dec. 01, 1998
Filed:
Feb. 07, 1997
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
In the liquid crystal display element, the light incident upon the poly-crystal silicon serving as an active layer for forming a poly-crystal silicon thin film transistors can be shaded, and further the light leaking through the gaps between the lines and the pixel electrodes can be shaded, so that it is possible to prevent the display performance from being lowered at relatively low cost, without reducing the aperture ratio of the display device. The liquid crystal display device having a transparent insulating substrate (18); pixel electrodes (8) arranged on the insulating substrate in matrix pattern to drive liquid crystal; and poly-crystal silicon thin film transistors (6) each formed on an active layer (21) arranged in correspondence to each pixel electrode (8) to apply voltage to each pixel electrode (8) is characterized in that an amorphous silicon film (19) is formed under the active layer (21) via an insulating film (20) to shade light incident upon the active layer (21) and light leaking through the gaps between the lines (1 and 2) and the pixel electrodes (8).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile