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A Overdrive Technique Architecture for the Frame Memory Reduction based on DWT and Color Conversion  

Byeon, Jin-Su (Department of Electronics Engineering, Chungnam National University)
Kim, Hyeon-Seop (Department of Electronics Engineering, Chungnam National University)
Kim, Do-Seok (Department of Electronics Engineering, Chungnam National University)
Jeon, Eun-Seon (Department of Electronics Engineering, Chungnam National University)
Hong, In-Seong (Department of Electronics Engineering, Chungnam National University)
Kim, Bo-Gwan (Department of Electronics Engineering, Chungnam National University)
Publication Information
Abstract
Recently, the LCD has high market share in TV market. The use of motion images in portable devices like DMB, PMP and Cell Phone is growing rapidly. One of the technique of enhancing the LCD's characteristic which is the slow response time. But, the technique requires a lot of memory usage, because of the requirement of frame memory. In this paper, we propose a reduction method for the frame memory that is required for LCD overdrive. Proposed overdrive architecture based on modified DWT-Inverse DWT and Color Conversion. The proposed architecture has a considerable PSNR. At once, it uses 50% of frame memory size and reduces 15% of frame memory size compare with previous architecture. The design was implemented using Xilinx Vertex4 and had 2172 Slice except Memory.
Keywords
LCD; Discrete Wavelet Transform; Color Conversion; Overdrive technique; Frame Memory Reduction;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 T. Furuhashi, K. Kawabe, J. Hirakata, Y. Tanaka, and T. Sato 'High-Quality TFT-LCD System for Moving Pictures,' SID, p1284-1287, 2002
2 Sung-Sik Yoon, June-Seok Bae, Hak-Lim Ko, Nho-Kyung Park, Dai-Tchul Moon, 'A Study on the Design of Programmable Color Space Converter', 한국통신학회 학술대회논문집 제 15권 3호, p.621, 1996
3 R. McCartney, N. Balram, 'Advanced LCD timing controller IC with memory-assisted response time compensation' VLSI Design Proceedings. p.1009, 2004
4 변진수, 김현섭, 김도석, 김보관, 'Frame Memory 축소를 위 한 DWT와 Color Conversion 기반의 Overdrive 구조' 대한전자공학회 하계종합학술대회 P997-998, 2008
5 Ik-Jae Chun, Hyeok Mun, Jeong-Hoon Sung, Sun-Young Park, and Bo-Gwan Kim, 'Overdrive Frame Memory Reduction Using a Fast Discrete Wavelet Transform' ITS-CSCC VOLUMEIII p161-164 2006
6 K. Kawabe, T. Furuhssi, Y. Tanaka, 'New TFT-LCD Driving Method For Improved Moving Picture Quality', SID, p998-1001, 2001
7 배찬권, '정보통신산업동향, 정보통신기기 편 : LCD', 정보통신정책연구원
8 조성선, 이윤철 'LCD 최근 연구 동향' 한국전자산업진흥회