公开(公告)号：US09412321B2

公开(公告)日：2016-08-09

申请号：US14335146

申请日：2014-07-18

申请人： SAMSUNG DISPLAY CO., LTD.

发明人： Seok Ha Hong ,  Dae-Gwang Jang ,  Gi Geun Kim ,  Sang Mi Kim ,  Ji Myoung Seo

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G09G3/3614 ,  G09G2320/0247 ,  G09G2320/0252 ,  G09G2320/103 ,  G09G2360/16

摘要： 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.

摘要翻译： 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：US20150179117A1

公开(公告)日：2015-06-25

申请号：US14463577

申请日：2014-08-19

申请人： SAMSUNG DISPLAY CO., LTD.

发明人： Seok-Ha Hong ,  Joon-Chul Goh ,  Bong-Hyun You ,  Dae-Gwang Jang

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G09G2320/0276 ,  G09G2320/028 ,  G09G2320/0673 ,  G09G2320/068 ,  G09G2320/0686 ,  G09G2354/00

摘要： A method of driving a display panel includes detecting a position of a viewer to output a viewer position detection signal, determining whether the position of the viewer is in a first area or in a second area based on the viewer position detection signal to output a viewer position signal, and driving a unit pixel of the display panel using a plurality of gamma values according to the viewer position signal. The first area is less than a reference distance, and the second area is not less than the reference distance. Thus, side visibility of a display apparatus may be improved.

摘要翻译： 驱动显示面板的方法包括检测观众的位置以输出观众位置检测信号，基于观众位置检测信号确定观众的位置是位于第一区域还是在第二区域中，以输出观看者 并且根据观众位置信号使用多个伽马值来驱动显示面板的单位像素。 第一区域小于参考距离，第二区域不小于参考距离。 因此，可以提高显示装置的侧面可视性。

公开(公告)号：US20140313236A1

公开(公告)日：2014-10-23

申请号：US14168966

申请日：2014-01-30

申请人： SAMSUNG DISPLAY CO., LTD.

发明人： Dae-Gwang Jang ,  Hyun Sik Hwang ,  Gi Geun Kim

IPC分类号： G09G5/02 ,  G09G5/00

CPC分类号： G09G5/02 ,  G06K9/00456 ,  G09G3/3648 ,  G09G5/00 ,  G09G2320/0247 ,  G09G2320/10 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435 ,  G09G2360/16

摘要： A display device configured to consume less power is disclosed. In one aspect, the display device includes a display panel comprising a pixel connected to a gate line and a data line, a data driver connected to the data line to apply a data voltage, and a gate driver connected to the gate line to sequentially apply a gate-on voltage. The display device additionally includes a signal controller configured to determine image data as corresponding to one of a motion picture, a still image, and a text screen. Furthermore, the signal controller is configured to drive the display panel, the data driver, and the gate driver at one of a motion picture frequency for displaying the motion picture, a still image frequency lower than the motion picture frequency for displaying the still image, and an ultra-low frequency of about 10 Hz or less for displaying the text screen.

摘要翻译： 公开了一种被配置为消耗较少功率的显示设备。 一方面，显示装置包括：显示面板，包括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以施加数据电压，以及连接到栅极线的栅极驱动器，以顺序地施加 栅极导通电压。 显示装置还包括被配置为确定与运动图像，静止图像和文本屏幕中的一个相对应的图像数据的信号控制器。 此外，信号控制器被配置为以用于显示运动图像的运动图像频率中的一个驱动显示面板，数据驱动器和栅极驱动器，静态图像频率低于用于显示静止图像的运动图像频率， 以及用于显示文本屏幕的约10Hz或更小的超低频率。

公开(公告)号：US20140313113A1

公开(公告)日：2014-10-23

申请号：US14023334

申请日：2013-09-10

申请人： Samsung Display Co., Ltd.

发明人： Dae-Gwang Jang ,  Seok Ha Hong ,  Joon-Chul Goh ,  Byung Sun Kim ,  Sang Mi Kim ,  Ji Myoung Seo

IPC分类号： G09G3/36

CPC分类号： G09G3/3655 ,  G09G3/3614 ,  G09G2310/06 ,  G09G2320/0204

摘要： The described technology relates to a liquid crystal display and a driving method thereof. The liquid crystal display includes a plurality of pixels arranged in a matrix form. The pixels include a liquid crystal capacitor including a pixel electrode and a common electrode as two terminals. A plurality of data lines transfer data to the plurality of pixels. The pixels include a first pixel and a second pixel, which are adjacent to each other. First and second common signals are applied to the common electrode of the first and second pixels, respectively. The second common signal is inverted to the first common signal. The first and second common signals swing between a first voltage and a second voltage. The polarity of the data voltage transferred by a data line with respect to the first common signal or the second common signal is constant during one frame.

摘要翻译： 所描述的技术涉及液晶显示器及其驱动方法。 液晶显示器包括以矩阵形式布置的多个像素。 像素包括作为两个端子的包括像素电极和公共电极的液晶电容器。 多个数据线将数据传送到多个像素。 像素包括彼此相邻的第一像素和第二像素。 第一和第二公共信号分别施加到第一和第二像素的公共电极。 第二公共信号被反转到第一公共信号。 第一和第二公共信号在第一电压和第二电压之间摆动。 数据线相对于第一公共信号或第二公共信号传输的数据电压的极性在一帧期间是恒定的。

公开(公告)号：US12073778B2

公开(公告)日：2024-08-27

申请号：US18348627

申请日：2023-07-07

申请人： SAMSUNG DISPLAY CO., LTD.

发明人： Kuk-Hwan Ahn ,  Seungjae Lee ,  Dae-Gwang Jang ,  Seongheon Cho

IPC分类号： G09G3/32

CPC分类号： G09G3/32 ,  G09G2310/08 ,  G09G2320/041 ,  G09G2330/045

摘要： A display device includes a display panel including pixels, driving chips applying data voltages to the pixels through channels; and a timing controller determining the data voltages output from the channels by each of the driving chips based on input image data, determining a load ratio of each of the driving chips based on the data voltages, generating a current temperature profile of a first pixel row based on the load ratio of each of the driving chips, generating a current temperature profile of a second pixel row based on the load ratio of each of the driving chips, and generating a two-dimensional temperature profile based on the current temperature profiles of the first pixel row and the second pixel row.

公开(公告)号：US11127352B2

公开(公告)日：2021-09-21

申请号：US17103530

申请日：2020-11-24

申请人： Samsung Display Co., Ltd.

发明人： Ho Cheol Kang ,  Ha Neul Kim ,  Dae-Gwang Jang ,  Young-Soo Hwang

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

摘要： 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：US20140375627A1

公开(公告)日：2014-12-25

申请号：US14307120

申请日：2014-06-17

申请人： Samsung Display Co., Ltd.

发明人： Byung Sun Kim ,  Dae-Gwang Jang ,  Seok Ha Hong

IPC分类号： G09G3/36

CPC分类号： G09G3/3677 ,  G09G2320/0257 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435

摘要： A display device and driving method thereof are disclosed. In one aspect, the display device includes a display panel displaying a still image and a moving image and a signal control unit controlling signals for driving the display panel and controlling a frequency of the display panel based on a low frequency enable signal. The signal control unit controls the driving of the display panel at a low frequency when the still image is applied to the display panel and the driving of the display panel at a normal driving frequency after a first time elapses. The signal control unit further controls the driving of the display panel at a low frequency after a second time elapses.

摘要翻译： 公开了一种显示装置及其驱动方法。 一方面，显示装置包括显示静止图像的显示面板和运动图像，以及信号控制单元，控制用于驱动显示面板的信号，并且基于低频使能信号来控制显示面板的频率。 信号控制单元在静止图像被施加到显示面板之后以低频率驱动显示面板的驱动，并且在第一次经过之后以正常的驱动频率驱动显示面板。 信号控制单元进一步在第二时间之后以低频控制显示面板的驱动。

公开(公告)号：US12125452B2

公开(公告)日：2024-10-22

申请号：US18220954

申请日：2023-07-12

申请人： SAMSUNG DISPLAY CO., LTD.

发明人： Dae-Gwang Jang ,  Byung Ki Chun

IPC分类号： G09G3/36 ,  G09G3/20 ,  G09G3/3291

CPC分类号： G09G3/3607 ,  G09G3/2003 ,  G09G3/3291

摘要： A display device including: a display panel including pixels; a controller configured to receive input image data, to detect a high gray region adjacent to a low gray region in an image represented by the input image data, to set at least a portion of the low gray region adjacent to the high gray region as a light spread region based on a light spread distance or a pixel density of the display panel, and to generate output image data by correcting the input image data for the light spread region; and a data driver configured to provide data voltages to the pixels based on the output image data.

公开(公告)号：US11074862B2

公开(公告)日：2021-07-27

申请号：US16853185

申请日：2020-04-20

申请人： Samsung Display Co., Ltd.

发明人： Woo Mi Bae ,  Dae-Gwang Jang ,  Young-Soo Hwang

IPC分类号： G09G3/3233

摘要： 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：US09548037B2

公开(公告)日：2017-01-17

申请号：US14142241

申请日：2013-12-27

申请人： Samsung Display Co., Ltd.

发明人： Dae-Gwang Jang ,  Seok Ha Hong

IPC分类号： G09G3/36

CPC分类号： G09G3/3696 ,  G09G2320/10 ,  G09G2330/022

摘要： 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.

摘要翻译： 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。