公开(公告)号：US09529561B2

公开(公告)日：2016-12-27

申请号：US14452692

申请日：2014-08-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seok Hwan Lee ,  Dae-Sik Lee ,  Hwan Woong Lee ,  Seung Young Choi

IPC: G09G5/10 ,  G06F3/14 ,  G09G3/34

CPC classification number: G06F3/1423 ,  G09G3/3406 ,  G09G3/342 ,  G09G2320/0233 ,  G09G2360/145

Abstract: A display device is provided. The display device includes a display panel, a backlight unit, and a luminance comparison unit. The backlight unit is configured to supply light to the display panel. The luminance comparison unit is configured to compare a measured luminance of the display panel with a reference luminance range. The backlight unit includes a light source unit, a DC-DC converter, and a driving current controller. The DC-DC converter is configured to supply a driving voltage to the light source unit, and the driving current controller is configured to control a driving current flowing to the light source unit based on the comparison result of the luminance comparison unit.

Abstract translation: 提供显示装置。 显示装置包括显示面板，背光单元和亮度比较单元。 背光单元被配置为向显示面板提供光。 亮度比较单元被配置为将显示面板的测量亮度与参考亮度范围进行比较。 背光单元包括光源单元，DC-DC转换器和驱动电流控制器。 DC-DC转换器被配置为向光源单元提供驱动电压，并且驱动电流控制器被配置为基于亮度比较单元的比较结果来控制流向光源单元的驱动电流。

公开(公告)号：US11682336B2

公开(公告)日：2023-06-20

申请号：US17198441

申请日：2021-03-11

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Hyeong An ,  Hoi Sik Moon ,  Yoon Gu Kim ,  Jin Pil Kim ,  Jae Sung Bae ,  Nam Jae Lim ,  Ik Hyun Ahn ,  Seung Young Choi

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/027 ,  G09G2310/0243 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/0673 ,  G09G2340/0435

Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The driving controller processes input image data according to a variable input frequency and generates a data signal having a varied frame length. The data driver converts the data signal into a data voltage and outputs the data voltage to the display panel. The driving controller determines a variable frequency mode and generates an asymmetric data signal including a positive data signal and a negative data signal which are asymmetric with respect to a common voltage for a same grayscale value in the variable frequency mode.

公开(公告)号：US10950202B2

公开(公告)日：2021-03-16

申请号：US16601382

申请日：2019-10-14

Applicant: Samsung Display Co., Ltd.

Inventor： Nam-Gon Choi ,  Hoi Sik Moon ,  Jai-Hyun Koh ,  Yoongu Kim ,  Namjae Lim ,  Seung Young Choi ,  JaeSung Bae ,  Taehyeong An ,  Byoung Seok Yoo

IPC: G09G5/10

Abstract: A display apparatus includes a local dimmer, an image compensator, a display panel and a light source. The local dimmer is configured to generate a dimming signal representing a degree of dimming for a light source block based on input image data. The image compensator is configured to determine a grayscale gain based on input grayscale value of the input image data and the dimming signal and to compensate luminance of the input image data based on the grayscale gain. The display panel is configured to display an image based on the compensated input image data. The light source is configured to provide light to the display panel based on the dimming signal.

公开(公告)号：US11610552B2

公开(公告)日：2023-03-21

申请号：US17343808

申请日：2021-06-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Soo Sohn ,  Ki Hyun Pyun ,  Jae Hyoung Park ,  Kwan Young Oh ,  Seung Young Choi

IPC: G09G3/3275 ,  G09G3/3266

Abstract: A display device of the present invention includes a pixel unit including a plurality of pixels connected to data lines and scan lines; a data driver disposed on one side of the pixel unit to drive the data lines; a scan driver disposed on the one side of the pixel unit together with the data driver to drive the scan lines; and a controller which controls an output timing of a data signal in units of pixel columns and units of pixel rows based on a load of a scan signal supplied to the scan lines and a load of the data signal supplied to the data lines.

公开(公告)号：US11455935B2

公开(公告)日：2022-09-27

申请号：US17197982

申请日：2021-03-10

Applicant: Samsung Display Co., Ltd.

Inventor： Young Soo Sohn ,  Jong Man Kim ,  Sung Mo Yang ,  Seung Young Choi

IPC: G09G3/20

Abstract: A display device according to an embodiment includes a display panel including a plurality of pixels, and an image sticking compensator configured to generate a second image data by reflecting an age data accumulated in a first image data input from an external source. The image sticking compensator generates the age data by accumulating a deterioration data generated by reflecting a frequency weight corresponding to a determined frequency of a previous frame to an image data of the previous frame after the image data of the previous frame is stored.

公开(公告)号：US11069304B2

公开(公告)日：2021-07-20

申请号：US16790525

申请日：2020-02-13

Applicant: Samsung Display Co., Ltd.

Inventor： Dae-Sik Lee ,  Yoongu Kim ,  Seung Young Choi ,  Keunoh Kang ,  Kihyun Pyun

IPC: G09G3/34 ,  G09G3/36

Abstract: A light source apparatus includes a light source and a light source driver. The light source includes a plurality of scan blocks. Each scan block includes a plurality of local dimming blocks. The light source driver includes a plurality of channels configured to output light source driving signals to the plurality of local dimming blocks. The light source driving signal includes a light source intensity value representing a light intensity of a local dimming block from among the plurality of local dimming blocks and a delay value representing a degree of a delay of the local dimming block. The delay value is determined by a scan delay value varied according to the plurality of scan blocks and a delay parameter.

公开(公告)号：US09514689B2

公开(公告)日：2016-12-06

申请号：US14643465

申请日：2015-03-10

Applicant: Samsung Display Co., Ltd.

Inventor： Seok Hwan Lee ,  Seung Young Choi ,  Byung Kyou Min ,  Dae Sik Lee

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G09G3/3426 ,  G09G2320/0247 ,  G09G2320/062 ,  G09G2320/0626 ,  G09G2320/0646 ,  G09G2360/16

Abstract: A display device includes at least one light source array configured to provide a display panel with light, a dimming signal generating unit configured to receive an image data signal and generate a dimming signal, a first comparator configured to receive the dimming signal output from the dimming signal generating unit and a preset critical value and generate a comparison signal, a dimming modulating unit configured to receive the comparison signal output from the first comparator and the dimming signal output from the dimming signal generating unit and modulate the dimming signal, a constant current controller configured to receive the dimming signal output from the dimming modulating unit and a voltage from a sensor node, and to control a light driving current driving the light source array, and a resistor controller configured to change resistors connected to the sensor node by the comparison signal output from the first comparator.

Abstract translation: 显示装置包括被配置为向显示面板提供光的至少一个光源阵列，调光信号产生单元，被配置为接收图像数据信号并产生调光信号;第一比较器，被配置为接收从调光输出的调光信号 信号生成单元和预设临界值，并生成比较信号;调光调制单元，被配置为接收从第一比较器输出的比较信号和从调光信号生成单元输出的调光信号，并调制调光信号;恒流控制器 被配置为接收从调光单元输出的调光信号和来自传感器节点的电压，并且控制驱动光源阵列的光驱动电流;以及电阻控制器，被配置为通过比较信号来改变连接到传感器节点的电阻器 从第一比较器输出。