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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.10
- 수록면
- 586 - 592 (7page)
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This paper proposes a luminance compensation method using optical sensors to achieve high luminanceuniformity of active matrix organic light-emitting diode (AMOLED) displays. The proposed methodcompensates for the non-uniformity of luminance by capturing the luminance of entire pixels and extractingthe characteristic parameters. Data modulation using the extracted characteristic parameters is performedto improve luminance uniformity. In addition, memory size is optimized by selecting an optimal bit depthof the extracted characteristic parameters according to the trade-off between the required memory size andluminance uniformity. To verify the proposed compensation method with the optimized memory size, a40-inch 1920×1080 AMOLED display with a target maximum luminance of 350 cd/m2is used. Theproposed compensation method considering a 4σ range of luminance reduces luminance error from ±38.64%, ± 36.32%, and ± 43.12% to ± 2.68%, ± 2.64%, and ± 2.76% for red, green, and blue colors,respectively. The optimal bit depth of each characteristic parameter is 6-bit and the total required memorysize to achieve high luminance uniformity is 74.6 Mbits.
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참고문헌 (17)
참고문헌 신청
S. -M. Choi / 2003 / A self-compensated voltage programming pixel structure for active-matrix organic light emitting diodes / Proc. Int’l Display Workshop :535~538
N. Komiya / 2004 / A 2.0-in. AMOLED Panel with Voltage Programming Pixel Circuits and Point Scanning Data DriverCircuits / Proc. Int’l Display Workshop :283~286
S.-M. Choi / 2004 / P-11: An Improved Voltage Programmed Pixel Structure for Large Size and High Resolution AM-OLED Displays / SID Int’l Symp. Dig. Tech. Papers :260~263
N.-H. Keum / 2014 / Pixel structures using the negative feedback method for high-resolution active matrix organic light-emitting diode displays / J. Soc. for Inform. Display 21:505~510
C.-H. Ho / 2014 / An Enhanced Voltage Programming Pixel Circuit for Compensating GB-Induced Variations in Poly-Si TFTs for AMOLED Displays / IEEE J. Display Technol 10:345~351
N. Komiya / 2004 / A 2.0-in. AMOLED Panel with Voltage Programming Pixel Circuits and Point Scanning Data DriverCircuits / Proc. Int’l Display Workshop :283~286
S.-M. Choi / 2004 / P-11: An Improved Voltage Programmed Pixel Structure for Large Size and High Resolution AM-OLED Displays / SID Int’l Symp. Dig. Tech. Papers :260~263
N.-H. Keum / 2014 / Pixel structures using the negative feedback method for high-resolution active matrix organic light-emitting diode displays / J. Soc. for Inform. Display 21:505~510
C.-H. Ho / 2014 / An Enhanced Voltage Programming Pixel Circuit for Compensating GB-Induced Variations in Poly-Si TFTs for AMOLED Displays / IEEE J. Display Technol 10:345~351
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