公开(公告)号：US20180293953A1

公开(公告)日：2018-10-11

申请号：US15824434

申请日：2017-11-28

Applicant: Samsung Display Co., Ltd.

Inventor： TAEGON IM ,  BOYEON KIM ,  JAE-HAN LEE

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3688 ,  G09G3/2018 ,  G09G3/3677 ,  G09G3/3696 ,  G09G2300/0413 ,  G09G2310/0251 ,  G09G2310/08 ,  H04B1/16

Abstract: A display apparatus includes a display panel, a gate driving part, a data driving part and a voltage providing part. The display panel displays an image, and includes gate lines and data lines. The gate driving part outputs gate signals to the gate lines. The data driving part outputs data signals to the data lines through data channels, and outputs a dummy data signal through a dummy data channel adjacent to a side of the display panel. The voltage providing part provides a driving voltage to the data driving part, receives the dummy data signal, and controls the driving voltage provided to the data driving part based on a voltage difference of the dummy data signal according to a time of the dummy data signal.

公开(公告)号：US20240013729A1

公开(公告)日：2024-01-11

申请号：US18108734

申请日：2023-02-13

Applicant: Samsung Display Co., LTD.

Inventor： SOOYEON KIM ,  TAEGON IM

IPC: G09G3/3266 ,  G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G3/2096 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2310/0286

Abstract: A display device includes a display panel including a plurality of pixel rows, a driving controller that generates a clock signal and a gate driver that provides scan signals and sensing signals to the plurality of pixel rows in response to the clock signal, wherein the clock signal includes a plurality of first pulses in an active period of a frame period and a plurality of second pulses in a vertical blank period of the frame period, and a width of at least one of the plurality of second pulses is different from a width of each of the plurality of first pulses.

公开(公告)号：US20210256923A1

公开(公告)日：2021-08-19

申请号：US17307550

申请日：2021-05-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： BOYEON KIM ,  WONTAE KIM ,  TAEGON IM

IPC: G09G3/36

Abstract: A display device may include a data driver that outputs a previous data voltage and a current data voltage, respectively, at an output terminal, to be applied to a pixel of a display panel in respective time intervals. A switch is controlled to open and close a circuit path between the output terminal and a data line coupled to the pixel. A capacitor stores an overdriving voltage.
At least one further switch selectively applies the overdriving voltage to the data line from the capacitor when the circuit path is open and thereby enables a rapid transition of a voltage level of the data line between the previous and current data voltages, when the current and previous data voltages are to differ by more than a predetermined amount. As an example, the rapid transition between the previous and current data voltages may serve to minimize a color mixture phenomenon between pixels connected to a common data line and representing different colors.

公开(公告)号：US20180012553A1

公开(公告)日：2018-01-11

申请号：US15646536

申请日：2017-07-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： BOYEON KIM ,  WONTAE KIM ,  TAEGON IM

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/2011 ,  G09G3/3607 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0242 ,  G09G2320/0252 ,  G09G2320/0276 ,  G09G2320/103 ,  G09G2330/06 ,  G09G2330/12

Abstract: A display device may include a data driver that outputs a previous data voltage and a current data voltage, respectively, at an output terminal, to be applied to a pixel of a display panel in respective time intervals. A switch is controlled to open and close a circuit path between the output terminal and a data line coupled to the pixel. A capacitor stores an overdriving voltage. At least one further switch selectively applies the overdriving voltage to the data line from the capacitor when the circuit path is open and thereby enables a rapid transition of a voltage level of the data line between the previous and current data voltages, when the current and previous data voltages are to differ by more than a predetermined amount. As an example, the rapid transition between the previous and current data voltages may serve to minimize a color mixture phenomenon between pixels connected to a common data line and representing different colors.

公开(公告)号：US20250046258A1

公开(公告)日：2025-02-06

申请号：US18609648

申请日：2024-03-19

Applicant: Samsung Display Co., LTD.

Inventor： TAEGON IM ,  YOUNGMIN BAE ,  JINYOUNG JEON

IPC: G09G3/3291

Abstract: A display device includes a display panel including a plurality of pixels and a plurality of data lines connected to the pixels, and a data driver which provide a plurality of data voltages to the data lines. The data driver includes a plurality of channels, where each of the channels outputs an nth data voltage in an nth horizontal period, and outputs an (n+1)th data voltage in an (n+1)th horizontal period, where n is a natural number, a common line, a plurality of data switches, which selectively connect the channels to the data lines, respectively, a plurality of common switches, each of which selectively connects a corresponding one of the channels to the common line, and a voltage sensor which senses a common voltage of the common line.

公开(公告)号：US20220208141A1

公开(公告)日：2022-06-30

申请号：US17541616

申请日：2021-12-03

Applicant: Samsung Display Co., Ltd.

Inventor： GWANGSOO AHN ,  JONG JAE LEE ,  TAEGON IM

IPC: G09G5/00 ,  G09G3/36

Abstract: A display device may include a display panel including a gate line, a data line, and a pixel electrically connected to the gate line and the data line, where display panel displays an image based on input image data, a gate driver which outputs a gate signal to the gate line, a data driver which outputs a data voltage to the data line, and a power supply voltage generator which provides a driving voltage to the display panel, the gate driver and the data driver. The power supply voltage generator generates a gate clock signal based on an on-clock signal and an off-clock signal and changes a count value of the on-clock signal or the off-clock signal when the gate clock signal is an abnormal signal.

公开(公告)号：US20170278475A1

公开(公告)日：2017-09-28

申请号：US15446763

申请日：2017-03-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： TAEGON IM ,  WONTAE KIM ,  GUHUI JO

IPC: G09G3/36

Abstract: A display device includes a display panel, a timing controller, a data driver, and a light source unit. The display panel includes a plurality of data lines. The timing controller receives a control signal and image data, and outputs a data control signal, converted image data, and a mode selection signal. The data driver receives the data control signal, the converted image data, and the mode selection signal from the timing controller, outputs a data voltage to the plurality of data lines, and operates in a first mode which is a power saving mode or a second mode which is a normal driving mode in response to the mode selection signal. The light source unit includes a light source part that operates in association with a source driving circuit included in the data driver.