| 摘要 |
<p>A color correction apparatus of a backlight unit corresponding to various luminance of users is provided to deliver a color control board to one specific protocol by accommodating a dynamic contrast ratio and a pulse-width modulating signal. A color correction apparatus of a backlight unit comprises a color control board, an LED driving unit for red, green and blue, a system and a controller converter. A color control board(10) senses light emitted from the LED array for the red, green and blue. The pulse-width modulating signal which is compensated on the production result based on the brightness control signal according to the demand of the sensing voltage. The LED array for the red, green and blue generates white light by mix of red, green and blue based on pulse-width modulating signal. A system transmits brightness control signal to an I2C protocol or a SMBus protocol. A controller converter transmits the brightness control signal to the color control board.</p> |
