公开(公告)号：US20150022747A1

公开(公告)日：2015-01-22

申请号：US14335146

申请日：2014-07-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seok Ha HONG ,  Dae-Gwang JANG ,  Gi Geun KIM ,  Sang Mi KIM ,  Ji Myoung SEO

IPC: G02F1/133

CPC classification number: G09G3/3648 ,  G09G3/3614 ,  G09G2320/0247 ,  G09G2320/0252 ,  G09G2320/103 ,  G09G2360/16

Abstract: A display device includes a display panel, a data driver, a gate driver, and a signal controller. The display panel includes a pixel connected to the gate and data lines, and the pixel includes a liquid crystal capacitor. The signal controller obtains compensation data and normal data based on input data for a still image. The signal controller apples the compensation data and normal data to the pixel during different periods of a frame. The compensation data has a value that reduces a difference of operation characteristics of liquid crystal molecules in the liquid crystal capacitor when a data voltage for the display panel changes between different polarities.

Abstract translation: 显示装置包括显示面板，数据驱动器，栅极驱动器和信号控制器。 显示面板包括连接到栅极和数据线的像素，并且像素包括液晶电容器。 信号控制器基于静止图像的输入数据获得补偿数据和正常数据。 在帧的不同时段期间，信号控制器将补偿数据和正常数据提供给像素。 当显示面板的数据电压在不同极性之间变化时，补偿数据具有减小液晶电容器中的液晶分子的操作特性的差异的值。

公开(公告)号：US20140071186A1

公开(公告)日：2014-03-13

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: H05B37/02 ,  G09G5/10

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：US20140022220A1

公开(公告)日：2014-01-23

申请号：US13691365

申请日：2012-11-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyoung Won LEE ,  Seung Seok NAM ,  Cheol Woo PARK ,  Kyoung Ho LIM ,  Dae-Gwang JANG ,  Gi Geun KIM ,  Eun Ho LEE ,  Ung Gyu MIN ,  Seok Ha HONG

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2320/103 ,  G09G2340/0435 ,  G09G2360/16

Abstract: A display device including: a display panel; and a signal controller which controls signals for driving the display panel, where the signal controller includes a representative value generator which sequentially operates a portion of image data of one frame, where the representative value generator moves a last position digit into another position digit of the portion of the image data and generates a representative value representing a portion of a frame image corresponding to the portion of the image data; a storage portion which stores the representative value therein; and a comparator which compares the representative values of present and prior frames to determine whether the portion of the frame image is a still image or a motion picture, and the signal controller controls the signals for driving the display panel such that a driving frequency for the still image is lower than a driving frequency for the motion picture.

Abstract translation: 一种显示装置，包括：显示面板; 以及信号控制器，其控制用于驱动显示面板的信号，其中信号控制器包括代表值发生器，其顺序地操作一帧的图像数据的一部分，其中代表值发生器将最后位置数字移动到另一位置数位 并且生成表示对应于图像数据的一部分的帧图像的一部分的代表值; 在其中存储代表值的存储部分; 以及比较器，其比较当前帧和现有帧的代表值，以确定帧图像的部分是静止图像还是运动图像，并且信号控制器控制用于驱动显示面板的信号，使得用于 静止图像低于运动图像的驱动频率。

公开(公告)号：US20210056899A1

公开(公告)日：2021-02-25

申请号：US16853185

申请日：2020-04-20

Applicant: Samsung Display Co., Ltd.

Inventor： Woo Mi BAE ,  Dae-Gwang JANG ,  Young-Soo HWANG

IPC: G09G3/3233

Abstract: An organic light emitting diode display device includes: a display area including a plurality of pixels; a compensation circuit configured to receive a current flowing through the plurality of pixels through a plurality of receiving lines connected to the plurality of pixels, and to generate a compensation value to compensate for deterioration of a driving transistor in each of the plurality of pixels based on the received current; a photo-sensor configured to measure external light to generate a light sensing signal; and a signal controller configured to cause the compensation circuit to generate the compensation value when no external light is incident on the photo-sensor such that the light sensing signal is received at a first voltage level and to perform external compensation to generate an image data signal by applying the compensation value to an image signal received from an external device.

公开(公告)号：US20160275852A1

公开(公告)日：2016-09-22

申请号：US15075835

申请日：2016-03-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seok Ha HONG ,  Dae-Gwang JANG ,  Byung Sun KIM ,  Sang Mi KIM ,  Ung Gyu MIN ,  Hyun Sik HWANG ,  Gi Geun KIM ,  Kyoung Won LEE

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/2003 ,  G09G3/3648 ,  G09G3/3696 ,  G09G2310/04 ,  G09G2320/0247 ,  G09G2320/103 ,  G09G2340/0435

Abstract: A controller controls the driving frequency and voltages for a display device. If image data corresponds to a moving picture, the controller drives a data driver and a gate driver at a moving picture frequency. If image data corresponds to a still image, drives the data driver and the gate driver at a still image frequency lower frequency than the moving picture frequency. When the still image is to be displayed, the signal controller also controls leakage current of a thin film transistor of a pixel based on a representative value of the image data, such that positive leakage current applied for a positive data voltage is equal to negative leakage current applied for a negative data voltage.

Abstract translation: 控制器控制显示装置的驱动频率和电压。 如果图像数据对应于运动图像，则控制器以运动图像频率驱动数据驱动器和栅极驱动器。 如果图像数据对应于静止图像，则以比运动图像频率更低的静止图像频率驱动数据驱动器和栅极驱动器。 当要显示静止图像时，信号控制器还基于图像数据的代表值来控制像素的薄膜晶体管的泄漏电流，使得为正数据电压施加的正的漏电流等于负泄漏 电流施加负数据电压。

公开(公告)号：US20150187291A1

公开(公告)日：2015-07-02

申请号：US14479730

申请日：2014-09-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dae-Gwang JANG

IPC: G09G3/36

CPC classification number: G09G3/3611 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2320/0204 ,  G09G2320/0285 ,  G09G2320/0626 ,  G09G2320/0693

Abstract: A display device includes a display unit, a common voltage measuring unit, and a signal controller. The display unit include a plurality of pixels, each including a liquid crystal capacitor including a terminal coupled to a common electrode to receive a common voltage and a pixel electrode to receive a gray scale voltage. The common voltage measuring unit measures a change in the common voltage resulting from a coupling between the common electrode and the pixel electrode when a test image including a specific pattern is output to the display unit. The signal controller detects a level of a residual DC voltage of a liquid crystal layer between the common electrode and pixel electrode based on a measured value of the common voltage.

Abstract translation: 显示装置包括显示单元，公共电压测量单元和信号控制器。 显示单元包括多个像素，每个像素包括液晶电容器，该液晶电容器包括耦合到公共电极的端子以接收公共电压，并且具有像素电极以接收灰度级电压。 当将包括特定图案的测试图像输出到显示单元时，公共电压测量单元测量由公共电极和像素电极之间的耦合产生的公共电压的变化。 信号控制器基于公共电压的测量值来检测公共电极和像素电极之间的液晶层的残留DC电压的电平。

公开(公告)号：US20140313181A1

公开(公告)日：2014-10-23

申请号：US14146792

申请日：2014-01-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seok Ha HONG ,  Dae-Gwang JANG ,  Byung Sun KIM ,  Sang Mi KIM ,  Ung Gyu MIN ,  Hyun Sik HWANG ,  Gi Geun KIM ,  Kyoung Won LEE

IPC: G09G3/36

CPC classification number: G09G3/2092 ,  G09G3/2003 ,  G09G3/3648 ,  G09G3/3696 ,  G09G2310/04 ,  G09G2320/0247 ,  G09G2320/103 ,  G09G2340/0435

Abstract: A controller controls the driving frequency and voltages for a display device. If image data corresponds to a moving picture, the controller drives a data driver and a gate driver at a moving picture frequency. If image data corresponds to a still image, drives the data driver and the gate driver at a still image frequency lower frequency than the moving picture frequency. When the still image is to be displayed, the signal controller also controls leakage current of a thin film transistor of a pixel based on a representative value of the image data, such that positive leakage current applied for a positive data voltage is equal to negative leakage current applied for a negative data voltage.

Abstract translation: 控制器控制显示装置的驱动频率和电压。 如果图像数据对应于运动图像，则控制器以运动图像频率驱动数据驱动器和栅极驱动器。 如果图像数据对应于静止图像，则以比运动图像频率更低的静止图像频率驱动数据驱动器和栅极驱动器。 当要显示静止图像时，信号控制器还基于图像数据的代表值来控制像素的薄膜晶体管的泄漏电流，使得为正数据电压施加的正的漏电流等于负泄漏 电流施加负数据电压。

公开(公告)号：US20210225290A1

公开(公告)日：2021-07-22

申请号：US17103530

申请日：2020-11-24

Applicant: Samsung Display Co., Ltd.

Inventor： Ho Cheol KANG ,  Ha Neul KIM ,  Dae-Gwang JANG ,  Young-Soo HWANG

IPC: G09G3/3258 ,  H02H9/04 ,  G09G3/3266 ,  G09G3/3275

Abstract: An electrostatic discharge protection circuit including: a first electrostatic discharge diode including a cathode to receive a first voltage, and an anode connected to a sensing line; a first switching element to determine the first voltage as a precharging voltage applied to a source terminal of the driving transistor when a sensing operation is performed, and to determine the first voltage as a maximum voltage used in a display panel when the sensing operation is not performed; a second electrostatic discharge diode including a cathode connected to the sensing line, and an anode configured to receive a second voltage; and a second switching element configured to determine the second voltage as the precharging voltage when the sensing operation is performed, and to determine the second voltage as a minimum voltage used in the display panel when the sensing operation is not performed.

公开(公告)号：US20140354619A1

公开(公告)日：2014-12-04

申请号：US14142241

申请日：2013-12-27

Applicant: Samsung Display Co., Ltd.

Inventor： Dae-Gwang JANG ,  Seok Ha HONG

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G2320/10 ,  G09G2330/022

Abstract: A controller for a liquid crystal display includes a data driver and a gate driver. The data driver applies data voltages having different polarities to a first pixel and a second pixel. The gate driver applies different gate-on voltages to a first gate line coupled to the first pixel and a second gate line coupled to the second pixel. The gate-on voltages have at least one of a different width or a different level when at least one of a still image or a moving picture is to be displayed. The different gate-on voltages translate into different pixel charging speeds, which may translate into improvements in the luminance and/or other properties of the display.

Abstract translation: 液晶显示器的控制器包括数据驱动器和门驱动器。 数据驱动器将具有不同极性的数据电压施加到第一像素和第二像素。 栅极驱动器对耦合到第一像素的第一栅极线和耦合到第二像素的第二栅极线施加不同的栅极导通电压。 当要显示静止图像或运动图像中的至少一个时，栅极导通电压具有不同宽度或不同电平中的至少一个。 不同的导通电压转换成不同的像素充电速度，这可能转化为显示器的亮度和/或其他性质的改进。

公开(公告)号：US20140160182A1

公开(公告)日：2014-06-12

申请号：US13939566

申请日：2013-07-11

Applicant: Samsung Display Co., Ltd.

Inventor： Seok Ha HONG ,  Dae-Gwang JANG ,  Sang Mi KIM ,  Ung Gyu MIN ,  Ji Myoung SEO ,  Bong Hyun YOU ,  Hyun Sik HWANG ,  Gi Geun KIM ,  Jong Hee KIM ,  Kyoung Won LEE

IPC: G09G5/00 ,  G09G5/02

CPC classification number: G09G5/00 ,  G09G3/3696 ,  G09G5/02 ,  G09G2300/08 ,  G09G2310/0213 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2360/08

Abstract: A display device includes a display panel including a gate line, a data line, and a pixel connected to the gate line and the data line, a data driver connected to the data line, a gate driver connected to the gate line, and a signal controller controlling the data driver and the gate driver, wherein a circuits powering power source voltage that is normally used for driving the data driver is selectively not applied during a new-image blanking time when the signal controller is not supplying image data to the data driver.

Abstract translation: 显示装置包括：显示面板，包括栅极线，数据线，连接到栅极线和数据线的像素;连接到数据线的数据驱动器;连接到栅极线的栅极驱动器;以及信号 控制数据驱动器和栅极驱动器的控制器，其中，当信号控制器不向数据驱动器提供图像数据时，在新图像消隐时间期间，选择性地不应用为正常用于驱动数据驱动器的电源电压供电的电路 。