公开(公告)号：US20170092207A1

公开(公告)日：2017-03-30

申请号：US15096935

申请日：2016-04-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young-Soo Sohn ,  Jae Hyoung Park ,  Ok-Kwon Shin ,  Jong-Jae Lee

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G3/3611 ,  G09G3/3685 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0242 ,  G09G2320/0673 ,  G09G2360/16

Abstract: A timing controller includes a data grouping part that generates a plurality of grayscale groups based on input image data, each grayscale group including n×m grayscales, a grayscale classifying part that generates a plurality of grayscale patterns respectively corresponding to the grayscale groups, a grayscale in the grayscale groups being classified in the grayscale patterns as a first grayscale if the grayscale is higher than a first reference grayscale or as a second grayscale if the grayscale is lower than a second reference grayscale, a pattern comparing part that compares each grayscale pattern with a first pattern including the n×m first and second grayscales, a pattern counter that counts a number of patterns of the grayscale patterns that are substantially the same as the first pattern, and a driving mode changing part that changes a driving mode of a display panel when the number is greater than a reference number.

公开(公告)号：US10083671B2

公开(公告)日：2018-09-25

申请号：US14920176

申请日：2015-10-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jong-Jae Lee ,  Yang-Uk Nam ,  Jun-Ki Hong ,  Jun-Dal Kim ,  Jang-Hee Park

IPC: G09G5/00 ,  H02M1/08 ,  H02M3/156 ,  H03K17/16 ,  H02M1/00

CPC classification number: G09G5/00 ,  G09G3/20 ,  G09G3/3696 ,  G09G2310/066 ,  G09G2310/067 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2330/06 ,  H02M1/08 ,  H02M3/156 ,  H02M2001/0029 ,  H03K17/161

Abstract: A DC-DC converter includes a power switch and a switching controller. The power switch is repetitively turned on and off for generating an output DC voltage based on an input DC voltage. The switching controller controls operation of the power switch, and includes a slew rate controller to adjust a slew rate of a switch voltage of an electrode of the power switch to vary with time.

公开(公告)号：US09672087B2

公开(公告)日：2017-06-06

申请号：US14332256

申请日：2014-07-15

Applicant: Samsung Display Co., Ltd.

Inventor： Jong-Jae Lee ,  Eui-Dong Hwang ,  Bon-Sung Koo ,  Jun-Dal Kim ,  Seung-Hwan Moon ,  Dong-Won Park

IPC: G06F11/00 ,  G06F11/07 ,  G09G3/20 ,  G09G3/36

CPC classification number: G06F11/0751 ,  G06F11/0706 ,  G09G3/2096 ,  G09G3/3674 ,  G09G2310/0267

Abstract: Exemplary embodiments of present invention relate to an error detecting apparatus for a gate driver improving a reliability of a display apparatus, a display apparatus having the error detecting apparatus, and a method of detecting an error of the gate driver using the error detecting apparatus. An exemplary embodiment discloses an error detecting apparatus including an error detecting part configured to receive a gate signal of a gate driver and determine whether a status of the gate driver is in a normal status or an error status based on the gate signal, a memory configured to store the status of the gate driver, and a signal outputting part configured to selectively output a clock signal and an error signal based on the status of the gate driver stored in the memory.

公开(公告)号：US10235949B2

公开(公告)日：2019-03-19

申请号：US15096935

申请日：2016-04-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young-Soo Sohn ,  Jae Hyoung Park ,  Ok-Kwon Shin ,  Jong-Jae Lee

IPC: G09G3/36

Abstract: A timing controller includes a data grouping part that generates a plurality of grayscale groups based on input image data, each grayscale group including n×m grayscales, a grayscale classifying part that generates a plurality of grayscale patterns respectively corresponding to the grayscale groups, a grayscale in the grayscale groups being classified in the grayscale patterns as a first grayscale if the grayscale is higher than a first reference grayscale or as a second grayscale if the grayscale is lower than a second reference grayscale, a pattern comparing part that compares each grayscale pattern with a first pattern including the n×m first and second grayscales, a pattern counter that counts a number of patterns of the grayscale patterns that are substantially the same as the first pattern, and a driving mode changing part that changes a driving mode of a display panel when the number is greater than a reference number.

公开(公告)号：US09570027B2

公开(公告)日：2017-02-14

申请号：US14454063

申请日：2014-08-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun-Dal Kim ,  Jong-Jae Lee ,  Bon-Sung Koo ,  Yang-Uk Nam ,  Se-Young Heo

IPC: H02H3/00 ,  G09G3/36

CPC classification number: G09G3/3677 ,  G09G2330/025

Abstract: A method of method of protecting a gate driver circuit configured to provide a gate line of a display panel with a gate signal includes generating a clock signal to drive the gate driver circuit, sensing an output current of the clock signal, detecting an overcurrent of the clock signal based on an overcurrent determining factor, determining whether the clock signal is in an overcurrent condition based on a count number of the overcurrent, generating a shutdown signal when the clock signal is in the overcurrent condition and blocking the clock signal from being applied to the gate driver circuit based on the shutdown signal.

Abstract translation: 一种保护栅极驱动器电路的方法，该栅极驱动器电路被配置为提供具有栅极信号的显示面板的栅极线，包括产生时钟信号以驱动栅极驱动器电路，检测时钟信号的输出电流， 基于过电流确定因子的时钟信号，基于过电流的计数确定时钟信号是否处于过电流状态，当时钟信号处于过电流状态时产生关断信号，并阻止时钟信号施加到 基于关断信号的栅极驱动电路。