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:
Jul. 15, 2008
Filed:
Dec. 15, 2003
Yoshiharu Nakajima, Kanagawa, JP;
Toshikazu Maekawa, Kanagawa, JP;
Yoshiharu Nakajima, Kanagawa, JP;
Toshikazu Maekawa, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
This invention relates to a digital/analog converter circuit, a level shift circuit, a shift-register containing this level shift circuit, a sampling latch circuit and a latch circuit as well as a liquid crystal display (LCD) device. The LCD device includes an integrated drive circuit integrated and a digital/analog converter circuit. The digital/analog converter circuit has a matrix of polysilicon thin film transistors positioned on the substrate, as switching devices for the pixels. The shift register includes a level shift circuit and a sampling latch circuit These circuits may be incorporated into a single scanning type structural circuit with the drive circuit-integrated LCD device to provide an LCD panel with a narrow picture frame, stable level shift operation, stable sampling & latch operation in a circuit having an extremely small number of components, low power consumption and a small surface area.