System-level power optimization: techniques and tools
ACM Transactions on Design Automation of Electronic Systems (TODAES)
Low-power color TFT LCD display for hand-held embedded systems
Proceedings of the 2002 international symposium on Low power electronics and design
Low Power Control Techniques For TFT LCD Displays
CASES '02 Proceedings of the 2002 international conference on Compilers, architecture, and synthesis for embedded systems
Chromatic Encoding: A Low Power Encoding Technique for Digital Visual Interface
DATE '03 Proceedings of the conference on Design, Automation and Test in Europe - Volume 1
Stepwise data driving method and circuits for low-power TFT-LCDs
IEEE Transactions on Consumer Electronics
Limited intra-word transition codes: an energy-efficient bus encoding for LCD display interfaces
Proceedings of the 2004 international symposium on Low power electronics and design
On-Chip Communication Architectures: System on Chip Interconnect
On-Chip Communication Architectures: System on Chip Interconnect
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This paper presents a low-power bus encoding technique suitable for the digital interface to a Liquid Crystal Display (LCD). In particular, we focus on interfaces that are compliant to the Digital Visual Interface (DVI) standard, in which the three color channels are serially transmitted to achieve high bandwidth.The proposed technique exploits the well-know inter-pixel correlation that exists in typical images by serially transmitting an encoded representation of the difference between adjacent pixels. The encoding is based on the principle of clustering the 1's in the code towards either ends of the pixel data, in such a way that serial transmission of a code yields at most 1 transition per pixel.The application of the encoding to a series of standard images resulted in energy savings of around 60% on average, with respect to a plain transmission of 8-bit pixel data.