公开(公告)号：US10290246B2

公开(公告)日：2019-05-14

申请号：US15498191

申请日：2017-04-26

Applicant: Samsung Display Co., Ltd.

Inventor： Jongjae Lee ,  Seokhwan Lee ,  Dae-sik Lee ,  Seyoung Heo

IPC: G09G3/3266 ,  G09G3/00 ,  G09G3/36 ,  G09G3/3225

Abstract: A display apparatus includes a plurality of pixels for receiving a plurality of gate signals, and a plurality of data voltages, a level shifter for receiving a gate driving voltage and a plurality of gate control clocks to generate a plurality of reference clocks, and for generating a plurality of control clocks by delaying the reference clocks by a predetermined time, a gate driver for outputting the gate signals in response to the control clocks, a short circuit protector for sensing a current of each control clock at each falling edge of each gate control clock to detect a static current of the each control clock, and for outputting a shut-down signal based on a count of the static current detection, and a voltage generator for providing the gate driving voltage to the level shifter, and shutting down in response to the shut-down signal.

公开(公告)号：US20160210930A1

公开(公告)日：2016-07-21

申请号：US14996314

申请日：2016-01-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jongjae Lee ,  Ikhyun Ahn ,  Bongim Park ,  Dongwon Park

IPC: G09G3/36 ,  G09G3/00

CPC classification number: G09G3/3696 ,  G09G3/003 ,  G09G3/3266 ,  G09G3/3674 ,  G09G3/3685 ,  G09G2310/0243 ,  G09G2310/0267 ,  G09G2310/0278 ,  G09G2310/0283 ,  G09G2310/0289 ,  G09G2320/02 ,  G09G2320/0223 ,  G09G2320/103 ,  G09G2330/028

Abstract: A display apparatus includes a controller which generates control signals and outputs image data, a compensating circuit which receives a portion of the control signals from the controller and generates a compensation signal, a voltage generating circuit which converts an input voltage to a driving voltage and increases or decreases a voltage level of the driving voltage in a frame period in response to the compensation signal, a driving part which receives the control signals and the image data from the controller and receives the driving voltage from the voltage generating circuit to generate a panel driving signal, and a display panel which receives the panel driving signal from the driving part to display an image.

Abstract translation: 显示装置包括产生控制信号并输出​​图像数据的控制器，从控制器接收控制信号的一部分并产生补偿信号的补偿电路，将输入电压转换为驱动电压并增加的电压产生电路 或者响应于补偿信号而在帧周期内降低驱动电压的电压电平;驱动部，其从控制器接收控制信号和图像数据，并接收来自电压发生电路的驱动电压，以产生面板驱动 信号以及从驱动部接收面板驱动信号以显示图像的显示面板。

公开(公告)号：US10255841B2

公开(公告)日：2019-04-09

申请号：US15228998

申请日：2016-08-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sujin Kim ,  Jongjae Lee ,  Yanguk Nam ,  Dae-sik Lee

IPC: G09G3/20

Abstract: A display device includes: a first data driving chip including: a first data driving circuit to generate a first data signal; and a first sensor to sense a first overcurrent flowing in the first data driving circuit based on a first power current flowing in the first data driving circuit to generate a first signal; a second data driving chip including: a second data driving circuit to generate a second data signal; and a second sensor to sense a second overcurrent flowing in the second data driving circuit based on a second power current flowing in the second data driving circuit to generate a second signal; and a power controller to control first and second powers respectively supplied to the first and second data driving chips, and to block at least one of the first and second powers based on at least one of the first and second signals.

公开(公告)号：US20170213517A1

公开(公告)日：2017-07-27

申请号：US15341994

申请日：2016-11-02

Applicant: Samsung Display Co., Ltd.

Inventor： Jongjae Lee ,  Sujin Kim ,  Junki Hong

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G3/3611 ,  G09G3/3696 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0673 ,  G09G2330/021 ,  G09G2360/16 ,  G09G2370/08

Abstract: A liquid crystal display device according to the present disclosure includes a timing controller, a power supply unit, a data supply unit, and a liquid crystal display panel. The timing controller analyzes image data to sense a target pattern, and generates an operating signal in a case where the target pattern is sensed. The power supply unit generates first to fourth gamma voltages in a case where the operating signal is not received. The power supply unit generates first to fourth modulation voltages after a variable time in a case where the operating signal is received. The difference between the first and second modulation voltages is smaller than the difference between the first and second gamma voltages, and the difference between the third and fourth modulation voltages is smaller than the difference between the third and fourth gamma voltages.

公开(公告)号：US20170206847A1

公开(公告)日：2017-07-20

申请号：US15365292

申请日：2016-11-30

Applicant: Samsung Display Co., Ltd.

Inventor： Yoonsik Park ,  Kyunho Kim ,  Yu-chol Kim ,  Jongjae Lee ,  Jiye Lee ,  Youngsuk Jung ,  Hyehyun Jeong

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3648 ,  G09G3/3688 ,  G09G5/18 ,  G09G2310/08 ,  G09G2330/025 ,  G09G2330/04 ,  G09G2330/12

Abstract: A clock generation circuit includes: a clock generator to receive a gate pulse signal and to generate at least one gate clock signal corresponding to the gate pulse signal; an over-current protector to detect a current level of the at least one gate clock signal, and to output a shutdown enable signal and at least one switching signal corresponding to the detected current level; and a switching unit including at least one switching device to output the gate pulse signal as the at least one gate clock signal. The clock generator is to generate the at least one gate clock signal in response to the shutdown enable signal, and the at least one switching device is to transmit the gate pulse signal as the at least one gate clock signal in response to the at least one switching signal.

公开(公告)号：US20170148375A1

公开(公告)日：2017-05-25

申请号：US15228998

申请日：2016-08-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sujin Kim ,  Jongjae Lee ,  Yanguk Nam ,  Dae-sik Lee

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/20 ,  G09G2300/0426 ,  G09G2330/02 ,  G09G2330/028

Abstract: A display device includes: a first data driving chip including: a first data driving circuit to generate a first data signal; and a first sensor to sense a first overcurrent flowing in the first data driving circuit based on a first power current flowing in the first data driving circuit to generate a first signal; a second data driving chip including: a second data driving circuit to generate a second data signal; and a second sensor to sense a second overcurrent flowing in the second data driving circuit based on a second power current flowing in the second data driving circuit to generate a second signal; and a power controller to control first and second powers respectively supplied to the first and second data driving chips, and to block at least one of the first and second powers based on at least one of the first and second signals.