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. 06, 2007
Filed:
Mar. 05, 2002
Fumihiko Kato, Yamagata, JP;
Fumihiko Kato, Yamagata, JP;
NEC Electronics Corporation, Kanagawa, JP;
Abstract
An LCD control unit includes a software adjustment block for adjusting the γ-correction voltages by a software. The LCD control unit includes a voltage generator block generating n γ-correction voltages and m Vcom voltages based on a voltage address signal, a voltage selecting block selecting a pair of γ-correction voltages and a Vcom voltage based on a time series polarity control signal, and an LCD driver having a γ-correction resistor string which receives the γ-correction voltages at both the ends thereof. The LCD driver converts external data signals into display voltages having voltages corrected by the outputs from the γ-correction resistor string.