发明名称 |
LCD Backlight Dimming, LCD / Image Signal Compensation and method of controlling an LCD display |
摘要 |
A method of reducing power consumption in a liquid crystal display illuminated by a backlight device includes dimming the backlight and adjusting the intensity of the image to compensate for the dimmed backlight. A dimming factor for the backlight is based on a clipping point determining from the pixel intensity distribution of the image signal. The intensity of the image is adjusted based on the dimming factor, wherein a first tone mapping function is used to adjust pixel intensities below an intensity threshold and a second tone mapping function is used to adjust pixel intensities above the intensity threshold
|
申请公布号 |
US2009295705(A1) |
申请公布日期 |
2009.12.03 |
申请号 |
US20080129305 |
申请日期 |
2008.05.29 |
申请人 |
CHEN MIN;PENG HUAJUN;QIU GUOPING;HUNG CHUN KIT;ZHANG WEI |
发明人 |
CHEN MIN;PENG HUAJUN;QIU GUOPING;HUNG CHUN KIT;ZHANG WEI |
分类号 |
G09G3/36 |
主分类号 |
G09G3/36 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|