公开(公告)号：US20090078852A1

公开(公告)日：2009-03-26

申请号：US12099777

申请日：2008-04-08

申请人： Chi-Hsiu Lin ,  Chun-Chien Chiu ,  Shin-Chang Lin

发明人： Chi-Hsiu Lin ,  Chun-Chien Chiu ,  Shin-Chang Lin

IPC分类号： G01J1/32

CPC分类号： G01J3/46 ,  G01J1/32 ,  G01J3/463 ,  G01J3/50 ,  G01J3/506 ,  G09G3/2014 ,  G09G3/32 ,  G09G3/3413 ,  G09G2320/0242 ,  G09G2320/029 ,  G09G2320/064 ,  G09G2360/145

摘要： An area-control based LED backlight system for a panel is divided into a plurality of independently controllable light emitting regions. A single color sensor or light sensor detects light emitting status of the regions. Reference values corresponding to the regions are set based on a white balance parameter. The reference values are compared to the light emitting status of the regions for performing color components ratio calibration, so as to compensate luminance and chrominance of light emitted from the regions and lightening the panel. Further, a single light sensor is used for detecting light emitted from LED sets of a whole-panel based LED backlight system for a panel. A reference value is compared to a detection result of the light sensor for generating a color component calibration parameter, so as to compensate luminance and chrominance of light emitted from the LED sets and lightening the panel.

摘要翻译： 用于面板的面积控制的LED背光系统被分成多个可独立控制的发光区域。 单个颜色传感器或光传感器检测区域的发光状态。 基于白平衡参数来设定与该区域对应的基准值。 将参考值与用于进行颜色分量比校准的区域的发光状态进行比较，以便补偿从区域发射的光的亮度和色度，并且减轻面板。 此外，单个光传感器用于检测面板的基于全面板的LED背光系统的LED组发出的光。 将参考值与用于产生颜色分量校准参数的光传感器的检测结果进行比较，以便补偿从LED组发出的光的亮度和色度，并减轻面板。

公开(公告)号：US20090102782A1

公开(公告)日：2009-04-23

申请号：US12199809

申请日：2008-08-28

申请人： Chi-Hsiu Lin ,  Shin-Chang Lin

发明人： Chi-Hsiu Lin ,  Shin-Chang Lin

IPC分类号： G09G3/36

CPC分类号： H05B33/0815 ,  H05B33/0827

摘要： A backlight apparatus is provided. The apparatus includes a light emitting unit, a voltage converter, a voltage detection unit, a correction unit, and a feedback control unit. The light emitting unit has a first connection end and a second connection end. The voltage converter transforms an input voltage into a rated voltage according to a periodic signal. The voltage detection unit detects a voltage level on the first connection end and the second connection end, and generates a measuring voltage. The correction unit performs a gain correction of the measuring voltage and adjusts the corrected measuring voltage by a specific ratio to generate a correction voltage. The feedback control unit outputs a feedback signal according to the correction voltage, and the voltage converter dynamically modifies the periodic signal according the feedback signal.

摘要翻译： 提供背光装置。 该装置包括发光单元，电压转换器，电压检测单元，校正单元和反馈控制单元。 发光单元具有第一连接端和第二连接端。 电压转换器根据周期信号将输入电压转换成额定电压。 电压检测单元检测第一连接端和第二连接端的电压电平，并产生测量电压。 校正单元执行测量电压的增益校正，并且将校正的测量电压调整特定比例以产生校正电压。 反馈控制单元根据校正电压输出反馈信号，电压转换器根据反馈信号动态地修改周期信号。