ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
권호 표지
DOI QR코드

DOI QR Code

Data Supply Voltage Reduction Scheme for Low-Power AMOLED Displays

  • Nam, Hyoungsik (Department of Information Display and Advanced Display Research Center, Kyung Hee University) ;
  • Jeong, Hoon (Department of Information Display and Advanced Display Research Center, Kyung Hee University)
  • Received : 2012.03.02
  • Accepted : 2012.06.22
  • Published : 2012.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

This paper demonstrates a new driving scheme that allows reducing the supply voltage of data drivers for low-power active matrix organic light-emitting diode (AMOLED) displays. The proposed technique drives down the data voltage range by 50%, which subsequently diminishes in the peak power consumption of data drivers at the full white pattern by 75%. Because the gate voltage of a driving thin film transistor covers the same range as a conventional driving scheme by means of a level-shifting scheme, the low-data supply scheme achieves the equivalent dynamic range of OLED currents. The average power consumption of data drivers is reduced by 60% over 24 test images, and power consumption is kept below 25%.

Keywords

References

  1. S.S. Kim, "The Next Big Thing in Displays," keynote presentation, SID, 2010.
  2. J. Souk and S. Whangbo, "Green Technology in LCDs," Information Display, vol. 26, no. 11&12, Nov./Dec. 2010, pp. 4-7.
  3. K. Teunissen and L.J. de OLDE, "EcoDesign for TV Displays' Information Display," Inf. Display, vol. 26, no. 11&12, Nov./Dec. 2010, pp. 10-14.
  4. J.Y. Lee, J.H. Kwon, and H.K. Chung, "High Efficiency and Low Power Consumption in Active Matrix Organic Light Emitting Diodes," Organic Electron., vol. 4, no. 2-3, Sept. 2003, pp. 143-148. https://doi.org/10.1016/j.orgel.2003.08.013
  5. S.H. Jung et al., "A New Low-Power pMOS Poly-Si Inverter for AMDs," IEEE Electron Device Lett., vol. 26, no. 1, Jan. 2005, pp. 23-25. https://doi.org/10.1109/LED.2004.839217
  6. H. Kanno et al., "Reduction in Power Consumption for Full-Color Active Matrix Organic Light-Emitting Devices," Jpn. J. Appl. Phys., vol. 45, no. 35, Sept. 2006, pp. L947-L950. https://doi.org/10.1143/JJAP.45.L947
  7. H. Nam and S.-W. Lee, "Low-Power Liquid Crystal Display Television Panel with Reduced Motion Blur," IEEE Trans. Consum. Electron., vol. 56, no. 2, May 2010, pp. 307-311. https://doi.org/10.1109/TCE.2010.5505932
  8. N. Komiya et al., "Comparison of Vth Compensation Ability among Voltage Programming Circuits for AMOLED Panels," Proc. 10th Int. Display Workshops, 2003, pp. 275-278.
  9. T. Sasaoka et al., "A 13.0-inch AM-OLED Display with Top Emitting Structure and Adaptive Current Mode Programmed Pixel Circuit (TAC)," Soc. Inf. Display (SID) Symp. Digest, 2001, pp. 384-386.
  10. T. Inukai et al., "4.0-in. TFT-OLED Displays and a Novel Digital Driving Method," Soc. Inf. Display (SID) Symp. Digest, 2000, pp. 924-927.
  11. R.M.A. Dawson et al., "Design of an Improved Pixel for a Polysilicon Active-Matrix Organic LED Display," Soc. Inf. Display (SID) Symp. Digest, 1998, pp. 11-14.

Cited by

  1. PLC-based photovoltaic system management for smart home energy management system vol.60, pp.2, 2012, https://doi.org/10.1109/tce.2014.6851992
  2. Smart home energy management system including renewable energy based on ZigBee and PLC vol.60, pp.2, 2012, https://doi.org/10.1109/tce.2014.6851994
  3. Design of SCR-Based ESD Protection Circuit for 3.3 V I/O and 20 V Power Clamp vol.37, pp.1, 2012, https://doi.org/10.4218/etrij.15.0114.0730
  4. AMOLED 에이징 챔버 신호 생성기 중앙서버 관리 시스템 vol.21, pp.6, 2012, https://doi.org/10.6109/jkiice.2017.21.6.1161
  5. AMOLED 에이징 챔버 신호 생성 및 가열 시스템 vol.22, pp.6, 2018, https://doi.org/10.6109/jkiice.2018.22.6.861
  6. RGB-to-RGBG conversion by direct assignment with accurate feedback correction vol.17, pp.4, 2012, https://doi.org/10.1080/1448837x.2020.1862388