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33.2: Development of Single Chip Overdrive LSI with Embedded Frame Memory
Author(s) -
Someya Jun,
Nagase Akihiro,
Okuda Noritaka,
Nakanishi Kunifumi,
Sugiura Hiroaki
Publication year - 2008
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3069700
Subject(s) - feed forward , computer science , codec , computer hardware , block (permutation group theory) , controller (irrigation) , electronic engineering , engineering , control engineering , mathematics , agronomy , geometry , biology
Abstract Methods of reducing overdrive memory using fixed block truncation coding (FBTC) have been studied since 2002, and the effects have been described from time to time. To date, our study has developed a timing controller for liquid crystal panels (TCON), and located in this panel, are a compression feedforward driving (cFFD) unit, which constitutes the basic structure, and a motion adaptive CODEC feedforward driving (macFFD) unit, which switches the structure according to the motion. Both driving units are available for the overdrive of 1/3 compressed images. Further in 2006, we proposed a high compression feedforward driving (hcFFD) algorithm for 1/6 compressed image overdrive. This paper reports the technology of hcFFD integrated into a single LSI, in which the performance has been improved and the circuit has been simplified through a review of the algorithm.