公开(公告)号：US20150130371A1

公开(公告)日：2015-05-14

申请号：US14263124

申请日：2014-04-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sanghyun Lee ,  Seonhye Kim ,  Jeong Bong Lee ,  MiKyung Kang ,  Kyung-Uk Choi

IPC: H05B33/08 ,  G09G3/34

CPC classification number: H05B33/0851 ,  G09G3/342 ,  G09G3/3648 ,  G09G2320/064 ,  G09G2320/0646 ,  H05B33/0815 ,  H05B33/0827 ,  Y02B20/346

Abstract: A backlight unit includes a dimming signal generator configured to generate first and second pulse width modulation signals, first and second driving blocks configured to receive a driving voltage to emit a light, a controller configured to receive the first and second pulse width modulation signals and an output signal from one of the first and second driving blocks to generate a voltage control signal, and a voltage converter configured to control a level of an input voltage in response to the voltage control signal to generate the driving voltage.

Abstract translation: 背光单元包括被配置为产生第一和第二脉冲宽度调制信号的调光信号发生器，被配置为接收驱动电压以发光的第一和第二驱动块，被配置为接收第一和第二脉冲宽度调制信号的控制器和 输出信号以产生电压控制信号;以及电压转换器，被配置为响应于所述电压控制信号来控制输入电压的电平以产生所述驱动电压。

公开(公告)号：US10304406B2

公开(公告)日：2019-05-28

申请号：US15380322

申请日：2016-12-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jeong-Oh Jin ,  Hyeok-Tae Kwon ,  Dongkeon Kim ,  Seonhye Kim ,  Se-Won Min ,  Hyunjung Son ,  Utah Choi

IPC: G09G3/36 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368

Abstract: A display apparatus includes a display panel including a switching element connected to a data line and a gate line, a pixel electrode connected to the switching element, a common electrode facing the pixel electrode and a liquid crystal layer disposed between the pixel electrode and the common electrode. The display apparatus further includes a data driving circuit configured to convert image data to a data voltage. The display apparatus further includes a driving voltage generator configured to generate a common voltage, in response to a voltage control signal from a timing controller, to the common electrode and the data driving circuit, which is configured to output the common voltage to the pixel electrode during an initial setting period when power is turned on to the display apparatus.

公开(公告)号：US09386651B2

公开(公告)日：2016-07-05

申请号：US14263124

申请日：2014-04-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sanghyun Lee ,  Seonhye Kim ,  Jeong Bong Lee ,  MiKyung Kang ,  Kyung-Uk Choi

IPC: H05B33/08 ,  G09G3/34 ,  G09G3/36

CPC classification number: H05B33/0851 ,  G09G3/342 ,  G09G3/3648 ,  G09G2320/064 ,  G09G2320/0646 ,  H05B33/0815 ,  H05B33/0827 ,  Y02B20/346

Abstract: A backlight unit includes a dimming signal generator configured to generate first and second pulse width modulation signals, first and second driving blocks configured to receive a driving voltage to emit a light, a controller configured to receive the first and second pulse width modulation signals and an output signal from one of the first and second driving blocks to generate a voltage control signal, and a voltage converter configured to control a level of an input voltage in response to the voltage control signal to generate the driving voltage.

Abstract translation: 背光单元包括被配置为产生第一和第二脉冲宽度调制信号的调光信号发生器，被配置为接收驱动电压以发光的第一和第二驱动块，被配置为接收第一和第二脉冲宽度调制信号的控制器和 输出信号以产生电压控制信号;以及电压转换器，被配置为响应于所述电压控制信号来控制输入电压的电平以产生所述驱动电压。