[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5573/JSTS.2014.14.5.688

Dynamic Slew-Rate Control for High Uniformity and Low Power in LCD Driver ICs

Choi, Sung-Pil (College of Information and Communication Engineering, Sungkyunkwan University)
Lee, Mira (Display Solution Development, SAMSUNG Electronics)
Jin, Jahoon (College of Information and Communication Engineering, Sungkyunkwan University)
Kwon, Kee-Won (College of Information and Communication Engineering, Sungkyunkwan University)
Chun, Jung-Hoon (College of Information and Communication Engineering, Sungkyunkwan University)

Publication Information

JSTS:Journal of Semiconductor Technology and Science / v.14, no.5, 2014 , pp. 688-696 More about this Journal

Abstract

A slew-rate control method of LCD driver ICs is introduced to increase uniformity between adjacent driver ICs and reduce power consumption. The slew rate of every voltage follower is calibrated by a feedback algorithm during the non-displaying period. Under normal operation mode, the slew rate is dynamically controlled for improving power efficiency. Experimental results show that the power consumption is reduced by 16% with a white pattern and by 10% with a black pattern, and display defects are successfully eliminated.

Keywords

DDI; LCD driver IC; slew rate; high uniformity; charge recycling;

Citations & Related Records

Reference

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