| Autor: |
Fang-Cheng Lin, Yi-Pai Huang, Lin-Yao Liao, Cheng-Yu Liao, Shieh, H.-P.D., Te-Mei Wang, Szu-Che Yeh |
| Zdroj: |
Journal of Display Technology; Jun2008, Vol. 4 Issue 2, p139-146, 8p |
| Abstrakt: |
A high dynamic range liquid crystal display (HDR-LCD) can enhance the contrast ratio of images by utilizing locally controlled dynamic backlight. We studied the HDR-LCD as a dual-panel display: a backlight module and a liquid crystal (LC) cell. As the gamma of the LC signal, the backlight module was also endowed with a gamma function to control the contrast ratio of HDR images. The inverse of a mapping function (IMF) method proposed as a dynamic gamma mapping curve for the backlight module, has been demonstrated to further improve in HDR image quality. By implementing the IMF method on a HDR-LCD TV with 88 backlight zones, the image contrast ratio can reach while maintaining high brightness, clear image detail, and an average power reduction of 30%. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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