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    Display device including an emission driver for controlling an off period ratio based on dimming signal
    12.
    发明授权
    Display device including an emission driver for controlling an off period ratio based on dimming signal 有权

    公开(公告)号：US12266306B2

    公开(公告)日：2025-04-01

    申请号：US18364724

    申请日：2023-08-03

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Kyung-Woo Kim ,  Cheolmin Kim ,  Sun-Koo Kang

    IPC: G09G3/3233

    Abstract: A display device includes a display panel including pixels connected to emission lines, a controller configured to receive a control signal, and to generate an emission start signal, a first emission clock signal and a second emission clock signal, and an emission driver configured to provide emission signals to the pixels through the emission lines in response to the emission start signal, the first emission clock signal and the second emission clock signal. The controller is further configured to determine an off period ratio for the pixels in units of two or more frame periods in response to the dimming signal. The control signal may be a dimming signal, a low power mode signal, or another type of signal indicative of operation of the display device.

    Display device
    13.
    发明授权
    Display device 有权

    公开(公告)号：US11893946B2

    公开(公告)日：2024-02-06

    申请号：US18098922

    申请日：2023-01-19

    Applicant: Samsung Display Co., Ltd.

    Inventor： Sun-Koo Kang ,  Hyunha Yang ,  Myeongbin Lim

    IPC: G09G3/3275 ,  G09G3/3233

    CPC classification number: G09G3/3275 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2330/028

    Abstract: A display device includes: a display panel, a data driver, and a scan driver. The data driver outputs data signals during a writing frame and outputs a bias voltage during a holding frame. The data driver includes a plurality of driving chips, and each of the driving chips includes: a gamma voltage generator, a data converter, a main output part for outputting corresponding data signals of the data signals during the writing frame, and a sub-output part for outputting the bias voltage during the holding frame. The gamma voltage generator of a selected driving chip among the plurality of driving chips is electrically connected to the sub-output parts disposed in the plurality of driving chips, respectively.

    Reduced heat generation from a source driver of display device
    14.
    发明授权
    Reduced heat generation from a source driver of display device 有权

    公开(公告)号：US11676553B2

    公开(公告)日：2023-06-13

    申请号：US16449989

    申请日：2019-06-24

    Applicant: Samsung Display Co., Ltd.

    Inventor： Wontae Kim ,  Sun-Koo Kang

    IPC: G09G3/36

    CPC classification number: G09G3/3648 ,  G09G3/3685 ,  G09G3/3696 ,  G09G2310/0297

    Abstract: A display device includes a display panel including first data lines, second data lines, gate lines, and a plurality of pixels, a voltage generator which generates a first driving voltage and a second driving voltage, and a source driver which generates a first data voltage having a first polarity based on the first driving voltage and a second data voltage having a second polarity based on the second driving voltage. The source driver includes a first source driver coupled to the first data lines and a second source driver coupled to the second data lines. The voltage generator alternately provides the first driving voltage and the second driving voltage to each of the first source driver and the second source driver.

    Display apparatus and a method of driving the same
    16.
    发明授权
    Display apparatus and a method of driving the same 有权

    公开(公告)号：US10482832B2

    公开(公告)日：2019-11-19

    申请号：US15462059

    申请日：2017-03-17

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Byungkil Jeon ,  Sun-Koo Kang ,  Seunghwan Moon ,  Junpyo Lee

    IPC: G06F5/00 ,  G09G3/36

    Abstract: A display apparatus includes a display panel, a gate driving part, and a data driving part. The display panel is configured to display an image, and includes a gate line and a data line. The gate driving part is configured to output a gate signal to the gate line. The data driving part is configured to output a data signal to the data line. A transition time of the data signal is a time when the data signal transitions from a low level to a high level, and the transition time of the data signal increases according to a decrease of a load of the display panel.

    DISPLAY DEVICE AUTOMATICALLY SETTING GATE SHIFT AMOUNT AND METHOD OF OPERATING THE DISPLAY DEVICE
    17.
    发明申请
    DISPLAY DEVICE AUTOMATICALLY SETTING GATE SHIFT AMOUNT AND METHOD OF OPERATING THE DISPLAY DEVICE 审中-公开

    公开(公告)号：US20190340989A1

    公开(公告)日：2019-11-07

    申请号：US16397263

    申请日：2019-04-29

    Applicant: SAMSUNG DISPLAY CO, LTD

    Inventor： JAE-HAN LEE ,  Sun-Koo Kang ,  Soo Yeon Kim ,  Tae Gon Im ,  Moon Shik Kang ,  Jung Hwan Cho

    IPC: G09G3/36 ,  G09G3/00

    Abstract: A display device includes a display panel including data lines, gate lines, and pixels connected to the data lines and the gate lines, a data driver configured to drive the data lines, a plurality of gate drivers, each configured to drive a corresponding portion of the gate lines, and a plurality of feedback lines connected to one of the data lines at a plurality of measurement positions corresponding to the plurality of gate drivers. The data driver applies a test voltage to the data line, receives the test voltage as a plurality of feedback voltages through the plurality of feedback lines, and determines gate shift amounts at the plurality of measurement positions corresponding to the plurality of gate drivers based on the plurality of feedback voltages. The gate drivers apply gate signals to the gate lines that are shifted by the determined gate shift amounts.

    Display device having ESD circuit
    19.
    发明授权
    Display device having ESD circuit 有权

    公开(公告)号：US09633589B2

    公开(公告)日：2017-04-25

    申请号：US14608657

    申请日：2015-01-29

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Sujin Kim ,  Young-Il Ban ,  Sun-Koo Kang ,  Sunkyu Son

    IPC: G09G5/00 ,  G09G3/20 ,  G09G3/36 ,  H01L27/02

    CPC classification number: G09G3/20 ,  G09G3/3685 ,  G09G2300/0426 ,  G09G2300/08 ,  G09G2330/025 ,  G09G2330/04 ,  H01L27/0266

    Abstract: A display device includes a first interconnection line, a first data driver, a second interconnection line, an electrostatic discharge (ESD) circuit, and a display panel. The first connection line transmits a data driving signal. The first data driver includes the first interconnection line and output a data signal based on the data driving signal. The second interconnection line passes through the first data driver and transmits a gate driving signal. The ESD) circuit in the first data driver and discharges static electricity transmitted through the second interconnection line. The first gate driver outputs a gate signal based on the gate driving signal transmitted through the second interconnection line. The display panel receives the data signal and the gate signal.

    Display driving circuit, display apparatus having the same and method of driving the same
    20.
    发明授权
    Display driving circuit, display apparatus having the same and method of driving the same 有权
    显示驱动电路，具有该驱动电路的显示装置及其驱动方法

    公开(公告)号：US09030451B2

    公开(公告)日：2015-05-12

    申请号：US13778414

    申请日：2013-02-27

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jae-Han Lee ,  Sunkyu Son ,  Sun-Koo Kang

    IPC: G09G5/00 ,  G09G3/36

    CPC classification number: G09G3/3696 ,  G09G3/3614 ,  G09G3/3685

    Abstract: A display driving circuit includes a digital-to-analog converter configured to convert a digital image signal to an analog image signal, and a buffer circuit configured to receive the analog image signal and to output an output signal to be applied to a data line, where the buffer circuit includes an input stage configured to receive the analog image signal and to output a first signal, a first output stage configured to receive a first voltage and a second voltage and to output the output signal, a second output stage configured to receive a third voltage and a fourth voltage and to output the output signal, and a selection circuit configured to apply the first signal from the input stage to the first output stage or the second output stage in response to a mode signal.

    Abstract translation: 显示驱动电路包括被配置为将数字图像信号转换为模拟图像信号的数模转换器，以及配置为接收模拟图像信号并输出​​要施加到数据线的输出信号的缓冲电路， 其中所述缓冲电路包括被配置为接收所述模拟图像信号并输出​​第一信号的输入级，被配置为接收第一电压和第二电压并输出所述输出信号的第一输出级，被配置为接收 第三电压和第四电压并输出输出信号;以及选择电路，被配置为响应于模式信号将来自输入级的第一信号施加到第一输出级或第二输出级。

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