公开(公告)号：US20160078821A1

公开(公告)日：2016-03-17

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 ,  G09G3/36

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。

公开(公告)号：US20200258455A1

公开(公告)日：2020-08-13

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：US20200271993A1

公开(公告)日：2020-08-27

申请号：US16689304

申请日：2019-11-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Nam Jae LIM ,  Hoi Sik MOON ,  Yoon Gu KIM ,  Jae Sung BAE ,  Seung Young CHOI ,  Tae Hyeong AN

IPC: G02F1/1335 ,  G02F1/1343

Abstract: A display device having a backlight which includes a first quantity of light source blocks that are individually driven at separate duty ratios. The display device includes pixels having a second quantity that is greater than the first quantity. The pixels are configured to determine a light transmission factor for light emitted from the light source blocks. A grayscale compensation unit is configured to calculate color shift amounts of the pixels based on the duty ratios of the light source blocks and compensate input grayscale values for the pixels based on the color shift amounts to correct color shift.

公开(公告)号：US20210287595A1

公开(公告)日：2021-09-16

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

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：US20220076636A1

公开(公告)日：2022-03-10

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：US20200090598A1

公开(公告)日：2020-03-19

申请号：US16439637

申请日：2019-06-12

Applicant: Samsung Display Co., Ltd.

Inventor： Youngsoo SOHN ,  Yoongu KIM ,  Seung Young CHOI ,  Akihiro TAKEGAMA

IPC: G09G3/34 ,  G09G3/36

Abstract: A display device includes a backlight unit including a plurality of light emitting blocks, a first controller configured to generate first block representative value information for first pixel blocks based on first image data, and a second controller configured to generate second block representative value information for second pixel blocks based on second image data. The first controller receives the second block representative value information from the second controller, and the second controller receives the first block representative value information from the first controller. The first and second controllers generate duty information for the plurality of light emitting blocks based on the first and second block representative value information, and generate light profile information of the backlight unit. The first controller compensates the first image data based on the light profile information, and the second controller compensates the second image data based on the light profile information.