55‐4: Optical Measurement of Lateral Leakage for Compensation in OLED Displays: Experimental Investigation of Algorithmic Approach

The lateral leakage current poses a challenge to achieving high color fidelity in high‐resolution OLED displays. We propose a method to extract a relative amount of leakage component by decomposing the chromaticity value measured by a display color analyzer with the luminance of red, green, and blue...

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Bibliographic Details
Published inSID International Symposium Digest of technical papers Vol. 55; no. 1; pp. 763 - 766
Main Authors Jang, Byoung-Yoon, Na, Se-Whan, Na, Jong-Hee, Park, Hyeon-Su, Lim, Hyun-Wook
Format Journal Article
LanguageEnglish
Published Campbell Wiley Subscription Services, Inc 01.06.2024
Subjects
Algorithms
Chromaticity
Color
Common Layers
Compensation
Crosstalk
Displays
HIL
HTL
Lateral leakage current
Leakage current
Luminance
OLED
Optical measurement
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Summary:The lateral leakage current poses a challenge to achieving high color fidelity in high‐resolution OLED displays. We propose a method to extract a relative amount of leakage component by decomposing the chromaticity value measured by a display color analyzer with the luminance of red, green, and blue color without direct measurement of the leakage current. Through the use of optical measurement and a compensation algorithm, the lateral leakage components are eliminated from each original pixel's gray level, thereby achieving an exact luminance level. The experiment shows that the color accuracy is improved from 8.23 to 0.64 after compensation.
ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.17638