Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/19511
標題: 利用色彩差值集中性之低功率LCD頁面緩衝區設計
Low Power LCD Frame Buffer Design Using Color Difference Locality
作者: 陳信雄
Chen, Hsin-Hsiung
關鍵字: low power frame buffer
低功率的頁面緩衝區
Color Difference Locality
thin tilm transistor-liquid crystal displays , TFT-LCD
色彩差值集中性
液晶薄膜顯示器
出版社: 資訊科學與工程學系所
引用: [1] 松本正一, 角田市良合著, 劉瑞祥譯, “液晶之基礎與應用,” 國立編譯館出版, 1996 [2] 陳德請著, “近代光電顯示工程導論,” 全華科技圖書股份有限公司出版, 2006 [3] http://cslin.auto.fcu.edu.tw/eduteach/oliver/dd/d2.htm [4] 趙中興編譯, “顯示器原理與技術(修訂版),“ 全華科技圖書股份有限公司出版, 1999 [5] Willem Den Boer著,林世楷,張慈牧,吳戴仰合譯,“主動式液晶顯示器(AMLCD),“全華科技圖書股費有限公司出版,2006 [6] Hojun Shim, Naehyuck Chang, Massoud Pedram, “A Compressed Frame Buffer to Reduce Display Power Consumption in Mobile System,“ in proc. IEEE International Conference on Design Automation Conference, January 2004, pp. 819-824. [7] Inseok Choi, Hojun Shim, and Naehyuck Chang, “Low-Power Color TFT LCD Display for Hand-Held Embedded Systems,” in Proc. IEEE International Symposium on Low Power Electronics and Design, August 2002, pp. 112-117. [8] Kee-Jong Kim, Chris H. Kim, and Kaushik Roy, “TFT-LCD Application Specific low Power SRAM Using Charge-Recycling Technique,“ in proc. IEEE International Symposium on Quality of Electronic Design, March 2005, pp. 59-64. [9] Ankur Goel, and Baquer Mazhari, “Gate Leakage and Its Reduction in Deep Submicron SRAM,“ in Proc. IEEE International Conference on VLSI Design, 2005, pp. 606-611. [10] Koji Nii, Yasumasa Tsukamoto, Tomoaki Yoshizawa, Susumu Imaoka, Yoshinobu Yamagami, Toshikazu Suzuki, Akinori Shibayama, Hiroshi Makino, and Shuhei Iwade, “A 90-nm low-Power 32-kB Embedded SRAM With Gate Leakage Suppression circuit for Mobile Applications, ” IEEE J. Solid-State circuits, vol. 39, Issue 4, April 2004, pp. 684-693. [11] Alberto Bocca, Sabino Salerno, Enrico Macii, Massimo Poncino, “Energy-efficient bus encoding for LCD displays, ” GLSVLSI’04, April 26-28, 2004, Boston, Massachusetts, USA, pp.624-634. [12] Sabino Salerno, Alberto Bocca, Enrico Macii, Massimo Poncino, “Limited Intra-Word Transition Codes: An Energy-Efficient Bus Encoding for LCD Display Interfaces, ”ISLPED’04, August 9-11, 2004, Newport Beach, California, USA, pp.206-211. [13] K. Patel, E. Macii, and M. Poncino, “Frame Buffer Energy Optimization by Pixel Prediction, “ In Proc. IEEE International Conference on Computer Design, October 2005, pp.98-101. [14] A.G.Weber, “USC-SIPI Image Database Version 5,“ USC-SIPI Report #315 October 1997. http://sipi.usc.edu/services/database/database.html.
摘要: 在本論文中,我們將提出一個低功率的頁面緩衝區 ( low power frame buffer )設計,由於液晶薄膜顯示器 ( TFT-LCD ) 所顯示的影像中,相鄰兩點像素之間的差異性不大,且其差值的分佈具有集中性,因此活用簡單的編碼技術,將寫入的資料編碼後再儲存,並切斷未使用記憶體單胞之供應電壓,以降低動態與靜態的功率消耗。本電路使用台積電 0.13 μm 1P8M 製程來設計並完成驗證,整個頁面緩衝區大小為 27 × 32 bits。與傳統的頁面緩衝區設計比較,我們的設計平均約可節省4%寫入功率消耗和4%的讀取功率消耗,在像素編碼資料佔整個頁面緩衝區的60%時,約可節省30%的靜態功率消耗。
In this paper, we will propose a low-power frame buffer design. As the image was shown in the TFT-LCD, two adjacent pixels of the difference is similar, we can exploits the simple coding technology, and cut off the power supply of unused memory cells to reduce both the dynamic and static power consumption. The proposed low-power frame buffer design was implemented with TSMC 0.18 um technology. The size of frame buffer is 27 32 bits. Compared to the conventional frame buffer, our design can reduce an average of 4% write power consumption and 4% of the read power consumption. The static power consumption is reduced by 30% when the encoding pixels account for 60% of the image.
URI: http://hdl.handle.net/11455/19511
其他識別: U0005-0708200815373200
文章連結: http://www.airitilibrary.com/Publication/alDetailedMesh1?DocID=U0005-0708200815373200
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