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Title: Low voltage driving of STN LCDs with low hardware complexity for portable applications
Authors: Panikumar, K.G.
Ruckmongathan, T.N.
Keywords: PMLCDs
Multi-Line Addressing
Hybrid Addressing
Hardware Complexity
Issue Date: Oct-2006
Publisher: Society for Information Display
Citation: Proceedings of the Asian Symposium on Information Display (ASID'06), Oct. 8-12, 2006, pp 121-124
Abstract: In passive matrix liquid crystal displays (PMLCDs), multiplexing is achieved by using intrinsic non-linear electro-optic characteristics of the displays. Supply voltage can be reduced considerably as compared to the conventional as well as multi-line addressing techniques by using displays with steep electro-optic characteristics. The technique is demonstrated by driving a display with the hybrid addressing technique (HAT) that has a low hardware complexity. A 35% reduction in supply voltage is achieved by using a display with steeper electro-optic characteristics than necessary for the application. The technique can be extended to display gray scales in combination with the successive approximation approach by using five multiplexers and a few voltage level generators (VLG) that are common to all the drivers in the display. It is a simple solution to reduce the hardware complexity, supply voltage and cost.
Description: Paper presented at the Proceedings of the Asian Symposium on Information Display (ASID'06), Oct. 8-12, 2006.
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Copyright: This paper is made available with permission of the Society for Information Display. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Appears in Collections:Research Papers (SCM)

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