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:
Oct. 22, 2002
Filed:
Jan. 27, 2000
Tung-hai Wu, Taichung, TW;
Jen-chung Weng, Hsinchu, TW;
Kuei-hsiang Chen, Hsinchu, TW;
Jia-der Hsieh, Hsinchu, TW;
Myson Technology, Inc., , TW;
Abstract
An image dithering device processing in both time domain and space domain to improve the image quality of an LCD digital display is disclosed. The device comprises a Gamma Table for performing Gamma processing on input signals; a counter module for generating a row counting value and a column counting value by counting the vertical synchronizing signal, horizontal synchronizing signal, and image pixel clock of the LCD image control system; a dithering value generating module for providing a dithering value for each pixel according to the row counting value and the column counting value, the dithering value generating module having a matrix with different value; and a calculation module for performing calculation on the value output form the Gamma Table and the dithering value for decreasing the bits of the input image value so as to fit the input data bits of the LCD display. Since the abandoned lower bite data are expressed in terms of time domain, the image quality and color of the LCD digital display can be increased.