公开(公告)号：US09439266B2

公开(公告)日：2016-09-06

申请号：US14080001

申请日：2013-11-14

Applicant: Samsung Display Co., Ltd.

Inventor： Hyung-Ku Kang ,  Hyuk-Hwan Kim ,  Dae-Gwang Jang ,  Yu-Han Bae ,  Hyeon-Yong Jang

IPC: G09G3/34 ,  G09G3/36 ,  G09G5/10 ,  H05B37/02 ,  H05B33/08

CPC classification number: H05B37/02 ,  G09G3/342 ,  G09G3/3426 ,  G09G3/3648 ,  G09G5/10 ,  G09G2320/0233 ,  G09G2320/041 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/066 ,  G09G2330/028 ,  G09G2360/16 ,  H05B33/0866

Abstract: A light source device includes a light source module having a light-emitting block, an image analysis part, a duty ratio calculation part, a duty ratio determination part and a signal generation part. The image analysis part extracts representative luminance data of the light-emitting block based on pixel data. The duty ratio calculation part calculates duty ratio data of the light-emitting block based on the representative luminance data. The duty ratio determination part generates determined duty ratio data of the light-emitting block based on the duty ratio data from a first period, and the signal generation part generates a driving signal having a duty ratio corresponding to the determined duty ratio data to drive the light-emitting block.

Abstract translation: 光源装置包括具有发光块，图像分析部，占空比计算部，占空比确定部和信号生成部的光源模块。 图像分析部基于像素数据提取发光块的代表亮度数据。 占空比计算部根据代表亮度数据计算发光块的占空比数据。 占空比确定部分基于来自第一周期的占空比数据产生确定的发光块的占空比数据，并且信号产生部分产生具有与确定的占空比数据相对应的占空比的驱动信号，以驱动 发光块。

公开(公告)号：US09082369B2

公开(公告)日：2015-07-14

申请号：US14275521

申请日：2014-05-12

Applicant: Samsung Display Co., Ltd.

Inventor： Woong-Kyu Min ,  Hyeon-Yong Jang

IPC: G09G3/36 ,  H05B41/392 ,  G09G3/34

CPC classification number: G09G3/3696 ,  G09G3/3406 ,  H05B41/3927

Abstract: An inverter of driving a light source for a display device is provided. The inverter includes a temperature sensor sensing a temperature and generating an output voltage based on the sensed temperature, a buffer generating an output signal having a state depending on the output voltage of the temperature sensor, an oscillator generating an oscillating signal having a frequency depending on the state of the output signal of the buffer, and an inverter performing a switching operation in response to the oscillating signal from the oscillator. Therefore, the inverter increases the voltage applied to the light source when the temperature near the light source is lower than a predetermined temperature since the frequency of the oscillating signal is increased.

Abstract translation: 提供驱动显示装置的光源的逆变器。 逆变器包括感测温度并基于感测到的温度产生输出电压的温度传感器，产生具有取决于温度传感器的输出电压的状态的输出信号的缓冲器，产生具有取决于温度传感器的频率的振荡信号的振荡器 缓冲器的输出信号的状态，以及响应于来自振荡器的振荡信号执行开关操作的反相器。 因此，当振荡信号的频率增加时，当光源附近的温度低于预定温度时，逆变器增加施加到光源的电压。