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    Display device with overcurrent protection function
    3.
    发明授权
    Display device with overcurrent protection function 有权

    公开(公告)号：US12039930B2

    公开(公告)日：2024-07-16

    申请号：US18104468

    申请日：2023-02-01

    申请人： Samsung Display Co., Ltd.

    发明人： Kihyun Pyun ,  Min-Soo Choi

    IPC分类号： G09G3/3233 ,  G09G3/20

    CPC分类号： G09G3/3233 ,  G09G3/2096 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0276 ,  G09G2320/045 ,  G09G2330/028

    摘要： A display device including: a display panel; a current compensation circuit executing a current compensation operation in which a load is calculated based on input image data, and output compensation image data is generated by compensating for the input image data based on the load; a data driver converting the compensation image data into a data voltage based on a gamma reference voltage and a data driving voltage, and outputting the data voltage; a current sensing circuit sensing a driving current of the display panel and comparing the driving current with a preset reference current to output a protection signal; a voltage generator generating a driving voltage, the gamma reference voltage, and the data driving voltage; and a voltage control circuit generating a first voltage control signal to control a first target compensation value of the gamma reference voltage or the data driving voltage in response to the protection signal.

    Display device
    4.
    发明授权
    Display device 有权

    公开(公告)号：US10741133B2

    公开(公告)日：2020-08-11

    申请号：US15649431

    申请日：2017-07-13

    申请人： Samsung Display Co., Ltd.

    发明人： Min-Soo Choi ,  Eui-Myeong Cho ,  Jang-Hoon Kwak ,  Jun Pyo Lee

    IPC分类号： G09G3/36 ,  G09G3/3266 ,  G09G3/3283

    摘要： A display device may include first-type gate lines, second-type gate lines, a data line, and a pixel. The first-type gate lines include a first gate line. The second-type gate lines include a second gate line and traverse the first gate line. The pixel includes a first switching transistor and a second switching transistor. The first switching transistor includes a first gate electrode, a first source electrode, and a first drain electrode. The first gate electrode is electrically connected to the first gate line. The first source electrode is electrically connected to the data line. The second switching transistor includes a second gate electrode, a second source electrode, and a second drain electrode. The second gate electrode is electrically connected to the second gate line. The second source electrode is electrically connected to the first drain electrode.

    Backlight unit with over-current detection and display device having the same
    5.
    发明授权
    Backlight unit with over-current detection and display device having the same 有权
    具有过流检测和显示装置的背光单元具有相同的功能

    公开(公告)号：US09418623B2

    公开(公告)日：2016-08-16

    申请号：US13928582

    申请日：2013-06-27

    申请人： Samsung Display Co., Ltd.

    发明人： Taegon Im ,  Myoung-Soo Kim ,  Hwanwoong Lee ,  Min-Soo Choi ,  Eun Chul Shin ,  Dae-Sik Lee

    IPC分类号： G09G3/36 ,  G09G5/10 ,  H05B33/08

    CPC分类号： G09G5/10 ,  G09G3/3406 ,  H05B33/0827

    摘要： A backlight unit includes a power converter configured to generate a light source driving voltage in response to a voltage control signal, a plurality of light emitting diode strings, where each of the light emitting diode strings receives the light source driving voltage through a first terminal thereof, a plurality of transistors corresponding to the light emitting diode strings, where each of the transistors includes: a first electrode connected to a second terminal of a corresponding light emitting diode string thereof; a second electrode; and a control electrode, and a controller connected to the control electrode and the second electrode, where the controller outputs a plurality of current control signals to control electrodes of the transistors and generate the voltage control signal, where the controller generates an over-current detection signal when any one of the current control signals has a pulse width less than a predetermined reference width.

    摘要翻译： 背光单元包括功率转换器，其被配置为响应于电压控制信号产生光源驱动电压，多个发光二极管串，其中每个发光二极管串通过其第一端子接收光源驱动电压 ，对应于发光二极管串的多个晶体管，其中每个晶体管包括：连接到其相应的发光二极管串的第二端子的第一电极; 第二电极; 以及控制电极，连接到控制电极和第二电极的控制器，其中控制器将多个电流控制信号输出到晶体管的控制电极并产生电压控制信号，其中控制器产生过电流检测 当任何一个电流控制信号具有小于预定参考宽度的脉冲宽度时的信号。

    Display device
    8.
    发明授权
    Display device 有权

    公开(公告)号：US11520384B2

    公开(公告)日：2022-12-06

    申请号：US17013898

    申请日：2020-09-08

    申请人： Samsung Display Co., LTD.

    发明人： Yeon-Sun Na ,  Min-Soo Choi

    IPC分类号： G06F1/20 ,  H05K7/20 ,  G06F1/18 ,  G09G3/20 ,  H05K1/02 ,  G02F1/1345 ,  H05K1/14

    摘要： A display device includes a display panel, a data driver which transmits a data voltage to the display panel, a first flexible printed circuit board attached to the display panel and including an input side wiring electrically connected to the data driver, a first printed circuit board (PCB) electrically connected to the input side wiring to transmit a high-speed driving signal to the data driver, and a metal tape overlapping the input side wiring in a plan view and attached on the first flexible printed circuit board, where a part of the metal tape overlapping the input side wiring in the plan view defines an opening.

    DISPLAY DEVICE
    9.
    发明公开
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20230317005A1

    公开(公告)日：2023-10-05

    申请号：US18104468

    申请日：2023-02-01

    申请人： Samsung Display Co., Ltd.

    发明人： KIHYUN PYUN ,  Min-Soo Choi

    IPC分类号： G09G3/3233

    CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2310/027 ,  G09G2330/028 ,  G09G2320/0276 ,  G09G2310/08 ,  G09G2320/045

    摘要： A display device including: a display panel; a current compensation circuit executing a current compensation operation in which a load is calculated based on input image data, and output compensation image data is generated by compensating for the input image data based on the load; a data driver converting the compensation image data into a data voltage based on a gamma reference voltage and a data driving voltage, and outputting the data voltage; a current sensing circuit sensing a driving current of the display panel and comparing the driving current with a preset reference current to output a protection signal; a voltage generator generating a driving voltage, the gamma reference voltage, and the data driving voltage; and a voltage control circuit generating a first voltage control signal to control a first target compensation value of the gamma reference voltage or the data driving voltage in response to the protection signal.