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:
Sep. 29, 1998
Filed:
Feb. 28, 1997
Shunpei Yamazaki, Tokyo, JP;
Jun Koyama, Kanagawa, JP;
Naoaki Yamaguchi, Kanagawa, JP;
Katunobu Awane, Nara, JP;
Fumiaki Funada, Nara, JP;
Yoshitaka Yamamoto, Nara, JP;
Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An active matrix liquid crystal display having a high aperture ratio is provided. Retaining capacitors are created between a black matrix and pixel electrodes via a dielectric layer made from an organic resinous material or inorganic material. Those regions of the black matrix which cover TFTs are fully utilized. Therefore, wider area can be used to display an image than heretofore. In the present invention, the difference in relative dielectric constant between different dielectric layers is employed. Therefore, retaining capacitors can be created without the need to take account of parasitic capacitance.