DOI QR코드

DOI QR Code

OLED 디스플레이의 전력 저감 및 모션 블러 개선에 관한 연구

A Study on the Reduction of Power Consumption and the Improvement of Motion Blur for OLED Displays

  • 투고 : 2015.12.07
  • 심사 : 2016.01.20
  • 발행 : 2016.03.31

초록

In this paper, we proposed a new driving scheme to reduce the motion blur and save the power for OLEDs(organic light emitting diodes). We adopted a DVS (dynamic voltage scaling) method to reduce power consumption and the division of TV field to improve motion blur. In the proposed scheme, BEW (Blur Edge Width) was decreased to the ratio of 1/4 compared to the conventional scheme under the optimal conditions. In this scheme, the gray levels to which the DVS method can be applied were divided into much smaller groups depending on the number of subfields. Therefore, our scheme does not guarantee less power consumption for every image compared to the conventional scheme. However, the new scheme can move the gray levels adopting the DVS to higher gray levels. Thus, we can save power even when having images at high gray levels.

키워드

참고문헌

  1. Sugimoto A., Ochi H.,Fujimura S., Yoshida A., Miyadera T., Tsuchida M., "Flexible OLED displays using plastic substrate", IEEE journal of selected topics in quantum electronics, vol.10(1), pp.107-114, 2004. https://doi.org/10.1109/JSTQE.2004.824112
  2. Patrick G.,Michelle S., Jens M., Michael K, Eike B., Hans-Hermann J., Wolfgang K., and Thomas R., "Towards see-through displays: fully transparent thin-film transistors driving transparent OLEDs", Advanced materials, vol. 18(6), pp.738-742, 2006. https://doi.org/10.1002/adma.200501957
  3. Jongbin K., Minkoo K.,Seungryeol K, Seungwoo Lee, "Driving technology for improving motion quality of active-matrix organic light-emitting diode display", Optical Engineering, vol. 53(9), pp. 093105, 2014. https://doi.org/10.1117/1.OE.53.9.093105
  4. Tae-gung K, Seung-tae K., Sang-ho Y.,Kyung-don W.,Woo-suk H., Bum-sik K., and Byung-chul A., "A novel power saving technology for OLED TV with external TFT compensation", SID symposium digest of technical papers", Vol.45(1),pp.728-731,2014.
  5. Kyonghwan O., Seongkwan H., Ohkyung K., "Lifetime extension method for AMOLED displays using a modified streched exponential decay model", IEEE electron device letters, Vol.36(3), pp.277-279, 2015. https://doi.org/10.1109/LED.2015.2394451
  6. Donghwa S., Younghyun K., Naehyuck C., Massoud P., "Dynamic voltage scaling of OLED displays", Design Automation Conference (DAC) 2011, pp. 53-58.
  7. Takatoshi Tsujimura,"Oled displays: fundamentals and applications", Wiley, 2011.
  8. Woongkyu Min, "A novel AMOLED compensation circuit for deviations of driving TFTs and OLED degradation", Hanyang university doctoral thesis, 2010.
  9. Gang Cao, Yao Zhao, and Rongrong Ni, "Edge-based blur metric for tamper detection" Journal of Information Hiding and Multimedia Signal Processing, Vol.1(1), pp.20-27, 2010.