Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Application of Stepwise Gate Signal for a-Si Gate Driver

a-Si Gate 구동회로의 Stepwise Gate 신호적용에 대한 연구

  • 명재훈 (삼성전자(주) AMLCD 총괄 Mobile 사업부) ;
  • 곽진오 (삼성전자(주) AMLCD 총괄 Mobile 사업부) ;
  • 이준신 (성균관대학교 정보통신공학부)
  • Published : 2008.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper investigated the a-si:H gate driver with the stepwise gate signal. In 1-chip type mobile LCD application the stepwise gate signal for low power consumption can be used by adding simple switching circuit. The power consumption of the a-Si:H gate driver can be decreased by employing the stepwise gate signal in the conventional circuit. In conventional one, the effect of stepwise gate signal can decrease slew rate and increase the fluctuation of gate-off state voltage, In order to increase the slew rate and decrease the gate off state fluctuation, we proposed a new a-Si:H TFT gate driver circuit. The simulation data of the new circuit show that the slew rate and the gate-off state fluctuation are improved, so the circuit can work reliably.

Keywords

References

  1. J. Jeon, K. S. Choo, W. K. Lee, J. H. Song, and H. G. Kim, "Integrated a-Si Gate Driver Circuit for TFT-LCD Panel", SID'04 DIGEST, p. 10, 2004
  2. 김상수, 김현재, 이신두, "디스플레이 공학I", 청범출판사, p. 327, 2005
  3. L. "J." Svensson et al., "Driving a capacitive load without dissipating fCV2", in Proc. of the 1994 IEEE Symposium on Low Power Design, p. 1000, 1994
  4. F. Maurice, H. Lebrun, N. Szydlo, U. Rossini, and R. Chaudet, in Proceedings of SPIE 3296 (Part of the IS&T/SPIE, Conference on Projection Displays IV), p. 9299, 1998
  5. R. G. Stewart, J. Dresner, S. Weisbrod, R. I. Huq, D. Plus, B. Mourey, B. Hepp, and A. Dupont, "Circuit Design for a-silicon AMLCDs with Integrated Drivers", SID'1995 DIGEST, p. 89, 1995
  6. Y. C. Sung, B. D Chio, and O. K. Kwon, "A Low-power Data Driver for TFT-LCDs," SID'00 DIGEST, p. 142, 2000
  7. T. Tsukada, "TFT/LCD", Bookshill, p. 68, 2000
  8. 윤영준, 한승우, 정철규, 정경훈, 김하숙, 김서 윤, 임영진, "Row driver 회로가 집적된 2.2-inch QCIF+ a-Si TFT-LCD", 전기전자재료학회논문지, 18권, 3호, p. 264, 2005 https://doi.org/10.4313/JKEM.2005.18.3.264
  9. J. H. Oh, J. H. Hur, Y. D. Son, K. M. Kim, S. H. Kim, E. H. Kim, J. W. Choi, S. M. Hong, J. O. Kim, B. S. Bae, and J. Jang, "2.0 Inch a-Si:H TFT-LCD with Low Noise Integrated Gate Driver", SID''05 Digest, p. 943, 2005
  10. W. K. Lee, J.-H. Lee, H.-S. Park, S.-J. Kim, and M.-K. Han, "Amorphous Silicon Gate Driver with Low Power Consumption and Highly Driving Capability for High Resolution Mobile Displays", IDW'06, p. 739, 2006
  11. J. H. Koo, J. W. Choi, Y. S. Kim, M. H. Kang, and J. Jang, "Amorphous Silicon Gate Driver with High Stability", IMID/IDMC'06 DIGEST, p. 1271, 2006