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:
Nov. 25, 2008
Filed:
Jul. 23, 2007
Mitsuharu Tai, Kokubunji, JP;
Mutsuko Hatano, Kokubunji, JP;
Shinya Yamaguchi, Mitaka, JP;
Takeo Shiba, Kodaira, JP;
Hideo Sato, Hitachi, JP;
Mitsuharu Tai, Kokubunji, JP;
Mutsuko Hatano, Kokubunji, JP;
Shinya Yamaguchi, Mitaka, JP;
Takeo Shiba, Kodaira, JP;
Hideo Sato, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Displays, Ltd., Mobara-shi, JP;
Abstract
A large number of pixels PXL are arranged in a matrix fashion in a display region DSP on an insulating substrate. Disposed around the display region DSP are a drain-side pixel-driving circuit including a drain shift register DSR, a digital-to-analog converter circuit DAC, a drain level shifter DLS, a buffer BF and sampling switches SSW; and a gate-side pixel-driving circuit including a gate shift register GSR and a gate level shifter GLS, and various kinds of circuits. Current mobility of thin film transistors constituting a circuit region SX requiring high-speed operation of these pixel-driving circuits is improved by optimizing a combination of plural layouts, arrangements and configurations for the respective circuits to meet the specifications special for the respective circuits.