公开(公告)号：US20170256194A1

公开(公告)日：2017-09-07

申请号：US15446542

申请日：2017-03-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yong-Hun KIM ,  Hyun-Sang PARK

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/0275 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2320/0271 ,  G09G2320/0673 ,  G09G2330/021 ,  G09G2360/16

Abstract: A display driving device includes a timing controller, a power management integrated circuit, and a column driver. The timing controller generates image data including a plurality of pixel data, and generates a power saving signal based on magnitudes of the plurality of pixel data included in the image data. The power management integrated circuit generates a drive voltage having a voltage level that is varied based on the power saving signal. The column driver receives the image data generated by the timing controller, and generates a plurality of output voltages corresponding to the plurality of pixel data included in the image data based on the drive voltage.

公开(公告)号：US20140253531A1

公开(公告)日：2014-09-11

申请号：US14095055

申请日：2013-12-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jae-Bum LEE ,  Hyun-Sang PARK

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G2310/0289

Abstract: A gate driver for driving gate lines of a display panel includes a scan signal generator configured to generate a scan signal for selecting one of the gate lines, and an output circuit. The output circuit is configured to receive a gate-on voltage, a first gate-off voltage, and a second gate-off voltage. The gate-on voltage is a voltage that turns on at least one transistor connected to the selected gate line, and the first gate-off voltage and the second gate-off voltage are voltages that turn off the at least one transistor connected to the selected gate line. The output circuit is configured to output the gate-on voltage to the selected gate line in response to a first state of the scan signal, and sequentially output the first gate-off voltage and the second gate-off voltage to the selected gate line in response to a second state of the scan signal.

Abstract translation: 用于驱动显示面板的栅极线的栅极驱动器包括被配置为产生用于选择栅极线之一的扫描信号的扫描信号发生器和输出电路。 输出电路被配置为接收栅极导通电压，第一栅极截止电压和第二栅极截止电压。 栅极导通电压是连接到所选择的栅极线的至少一个晶体管的电压，并且第一栅极截止电压和第二栅极截止电压是关断连接到所选择的栅极线的至少一个晶体管的电压 门线。 输出电路被配置为响应于扫描信号的第一状态而将栅极导通电压输出到所选择的栅极线，并且将第一栅极截止电压和第二栅极截止电压依次输出到所选择的栅极线 响应扫描信号的第二状态。