Browsing by Author "Huang, Ju-Lin"

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On-Panel Output Buffer With Offset Compensation Technique for Data Driver in LTPS Technology
(2006-06-01)
Ker, Ming-Dou
;
Deng, Chih-Kang
;
Huang, Ju-Lin
;
電機學院
;
College of Electrical and Computer Engineering
To overcome the offset voltage (V(OS)) of output buffer due to large variation on characteristics of thin-film transistor (TFT) in low-temperature polysilicon (LTPS) technology, a class-B output buffer with offset compensation circuit for the data driver is presented in this paper. This proposed class-B output buffer can operate at 50-kHz operation frequency with a 2-8-V output swing for extended graphic array (XGA) application, and it has been demonstrated in 3-mu m LTPS technology. Using the offset compensation technique, the V(OS) of output buffer can be controlled within +/- 100 mV under 2-to-8 V signal operation to achieve a high resolution and quality liquid crystal display (LCD) panel.