한국정보디스플레이학회:학술대회논문집
- 2006.08a
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- Pages.393-398
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- 2006
Driving technologies for AMOLEDs
- Matsueda, Yojiro (Display 1 team, Corporate R&D Center, Samsung SDI Co.,Ltd) ;
- Kim, Hong-Kwon (Display 1 team, Corporate R&D Center, Samsung SDI Co.,Ltd) ;
- Chung, Ho-Kyoon (Display 1 team, Corporate R&D Center, Samsung SDI Co.,Ltd)
- Published : 2006.08.22
Abstract
This paper classifies driving technologies for AMOLEDs by the driving TFT conditions in pixels. A saturation region operation type driving TFT circuit provides good stability of OLED because of constant current drive. However, complicated compensation circuits are necessary to avoid effect of the TFT characteristics deviation. On the other hand, a linear region operation type driving TFT circuit provides better uniformity of the display image and lower power consumption. However, the stability of OLED is critical because of constant voltage drive.
Keywords