대한안전경영과학회:학술대회논문집 (Proceedings of the Safety Management and Science Conference)
- 대한안전경영과학회 2008년도 추계학술대회
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- Pages.131-143
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- 2008
OLED 소자의 수명 평가법에 관한 연구
A study on the method of OLED device's lifetime test
초록
According to the Korea Agency for Technology and Standards under the Commerce Ministry, OLED device's lifetime is defined 50% drop of luminance. OLED device is self-emitting operating device, that means it becomes different color between pixels under using environment. That's reason of the different luminance drop ratio & chromaticity coordinates shift ratio with time. The problem is there is not recovered after luminace drop and color shift. We can recognize the difference of color as image sticking. First we studied when human recognize the difference of color and second we apply the method of OLED device's lifetime test that's able to check different color between pixels