An OLED driving currents compensation method with a CCD camera

In this work, we propose a promising approach that compensates OLED driving currents for large-sized OLED displays. With a CCD camera, pixel-to-pixel brightness differences were determined, and applied to compensate OLED driving currents for the purpose of achieving high luminance uniformity. We als...

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Bibliographic Details
Published in2014 IEEE International Conference on Consumer Electronics (ICCE) pp. 504 - 505
Main Authors Jinkyu Kim, Wonyeol Lee, Jeonghoon Seo, Euiyeol Oh
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.01.2014
Subjects
Brightness
Calibration
Cameras
Charge coupled devices
Current measurement
Fabrication
Organic light emitting diodes
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Summary:In this work, we propose a promising approach that compensates OLED driving currents for large-sized OLED displays. With a CCD camera, pixel-to-pixel brightness differences were determined, and applied to compensate OLED driving currents for the purpose of achieving high luminance uniformity. We also implemented the proposed method as a system comprising a FPGA-based timing controller (T-con) and softwares, and the proposed method shows improved luminance uniformity over 20% at the gray level of 32/256.
ISSN:2158-3994
2158-4001
DOI:10.1109/ICCE.2014.6776106