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:
Jun. 27, 2006
Filed:
Aug. 30, 2002
Sung Tae Ahn, Seoul, KR;
Keunmyung Lee, Palo Alto, CA (US);
Dae Young Ahn, Seoul, KR;
Tae Kwang Park, Seoul, KR;
Sung Tae Ahn, Seoul, KR;
Keunmyung Lee, Palo Alto, CA (US);
Dae Young Ahn, Seoul, KR;
Tae Kwang Park, Seoul, KR;
Leadis Technology, Inc., Sunnyvale, CA (US);
Abstract
A single-chip column driver for organic light emitting diode (OLED) display is disclosed. Instead of using two column drivers for dual scan, the present invention uses one column driver driving both the upper and the lower OLED panels. The column driver has a two set of output circuitry: one for driving the upper panel and the other for driving the lower panel. The single chip solution of the present invention eliminates the problem of display uniformity without increasing the part count. The invention also enables independent control of RGB without further increasing the part count.