公开(公告)号：US10762858B2

公开(公告)日：2020-09-01

申请号：US15812451

申请日：2017-11-14

Applicant: Samsung Display Co., Ltd.

Inventor： Hong-Kyu Kim ,  Myeong Su Kim ,  Po-Yun Park ,  Gwang Soo Ahn

IPC: G09G3/36 ,  G09G3/20 ,  G09G5/00

Abstract: A display device includes a display panel including: a plurality of pixels; and a signal controller which generates, on a frame-by-frame basis, a display signal based on an input image signal and a control signal from an outside. The signal controller includes a memory which stores a preset image signal, a receiver which receives the control signal, a clock signal modulator which generates an internal clock signal having a first frequency during a blank period, which is determined based on the control signal in a frame period, and a data processor which reads the preset image signal from the memory in response to the internal clock signal for an image processing.

公开(公告)号：US09666607B2

公开(公告)日：2017-05-30

申请号：US13940405

申请日：2013-07-12

Applicant: Samsung Display Co., Ltd.

Inventor： Hong-Kyu Kim ,  Bong-Jun Lee ,  Ju Hee Lee ,  Sun-Kwun Son ,  Jae Yoon Jung ,  Seung Han Jo

IPC: G02F1/1343 ,  G02F1/1333 ,  H01L27/12 ,  H01L23/485 ,  H01L23/48 ,  G02F1/1362 ,  H01L23/52 ,  H01L23/482 ,  H01L23/522

CPC classification number: H01L27/124 ,  G02F1/134309 ,  G02F1/136286 ,  H01L23/48 ,  H01L23/4824 ,  H01L23/485 ,  H01L23/52 ,  H01L23/522

Abstract: A display device includes a signal line disposed on a substrate. A signal input line is disposed on the substrate and connected to a driver. A first insulating layer is disposed on the signal line. A second insulating layer is disposed on the signal input line and the first insulating layer. First contact holes penetrate the first insulating layer and the second insulating layer and expose a portion of the signal line. Second contact holes penetrate the second insulating layer and expose a portion of the signal input line. A connecting member connects the signal line and the signal input line through the first and the second contact holes and is disposed on the second insulating layer. The first and the second contact holes are alternately arranged in the second insulating layer.

公开(公告)号：US10997938B2

公开(公告)日：2021-05-04

申请号：US16196608

申请日：2018-11-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hong-Kyu Kim ,  Po-Yun Park ,  Gwang-Soo Ahn ,  Jung-Hwan Cho

IPC: G09G3/36 ,  G09G3/00

Abstract: A display panel driving apparatus includes a data driving part, a data driving part and an off voltage controlling part. The data driving part is configured to output a data signal to a data line of a display panel. The gate driving part is configured to output a gate signal to a gate line of the display panel. The off voltage controlling part is configured to receive a first off voltage and a second off voltage applied to the gate driving part to generate the gate signal, measure a leakage current of the gate driving part, and control the first off voltage based on the leakage current. Thus, display quality of a display apparatus including the gate driving part may be improved.

公开(公告)号：US10819333B2

公开(公告)日：2020-10-27

申请号：US16260346

申请日：2019-01-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ga-Na Kim ,  Po-Yun Park ,  Hong-Kyu Kim ,  Myeongsu Kim ,  Dongwon Park

IPC: H03K17/22 ,  G09G5/18

Abstract: A timing controller resetting circuit including: a resistor connected to an output node from which a reset signal is output and a first voltage source which supplies a first voltage; a capacitor connected to the output node and a second voltage source which supplies a second voltage that is lower than the first voltage; a reference voltage source configured to generate a reference voltage that is lower than the first voltage and higher than the second voltage; a comparator including a first input terminal which receives the first voltage, a second input terminal which receives the reference voltage, and an output terminal which outputs a comparison result signal generated by comparing the first voltage with the reference voltage; and a transistor including a first terminal which is connected to the output node, a second terminal which receives the second voltage, and a gate terminal which receives the comparison result signal.

公开(公告)号：US11172160B2

公开(公告)日：2021-11-09

申请号：US16124094

申请日：2018-09-06

Applicant: Samsung Display Co., Ltd.

Inventor： Hong-Kyu Kim ,  Yong-Bum Kim ,  Po-Yun Park ,  Dong-Hyun Yeo ,  Byungkil Jeon

IPC: H04N7/01

Abstract: In a method of operating a display device supporting a variable frame mode, frame data are received during a constant active period of a frame period including the active period and a variable blank period, the received frame data are written to a frame memory in the active period, the received frame data are outputted to a data driver in the active period to display an image based on the received frame data, a time of the variable blank period is counted, and, when the time of the variable blank period reaches a predetermined threshold blank time, the frame data stored in the frame memory are outputted to the data driver in the variable blank period to display an image based on the frame data stored in the frame memory.

公开(公告)号：US10163417B2

公开(公告)日：2018-12-25

申请号：US15002039

申请日：2016-01-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hong-Kyu Kim ,  Po-Yun Park ,  Gwang-Soo Ahn ,  Jung-Hwan Cho

IPC: G09G3/36 ,  G09G3/00

Abstract: A display panel driving apparatus includes a data driving part, a gate driving part and an off voltage controlling part. The data driving part is configured to output a data signal to a data line of a display panel. The gate driving part is configured to output a gate signal to a gate line of the display panel. The off voltage controlling part is configured to receive a first off voltage and a second off voltage applied to the gate driving part to generate the gate signal, measure a leakage current of the gate driving part, and control the first off voltage based on the leakage current. Thus, display quality of a display apparatus including the gate driving part may be enhanced.

公开(公告)号：US12300147B2

公开(公告)日：2025-05-13

申请号：US18483959

申请日：2023-10-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung-Taek Kim ,  Hong-Kyu Kim ,  Seungho Park

IPC: G09G3/20 ,  G09G3/3233 ,  G09G3/36 ,  G09G3/3266

Abstract: A display device includes a data driver providing a data voltage to each of multiple pixels, a scan driver providing first and second scan signals to each of the pixels, and a controller to control the data driver and the scan driver. The scan driver performs a first active scan operation that sequentially provides the first and second scan signals to the pixels in an active period of a first frame period, and initiates a dummy scan operation that sequentially provides the second scan signal to the pixels in a blank period of the first frame period. When a second frame period starts before the dummy scan operation for the pixel in a last row, the data driver changes a level of the data voltage in an overlap period in which the dummy scan operation and a second active scan operation in the second frame period are simultaneously performed.

公开(公告)号：US20190279556A1

公开(公告)日：2019-09-12

申请号：US16351321

申请日：2019-03-12

Applicant: Samsung Display Co., Ltd.

Inventor： Po-Yun Park ,  Ga-Na Kim ,  Hong-Kyu Kim ,  Junghwan Cho

IPC: G09G3/20

Abstract: A display panel driving control circuit includes a configuration channel configured to determine whether a reversible connector not having designated up and down sides is connected in a first connection state or in a second connection state, and to generate a selection signal based on the determination, and a timing control circuit configured to receive image data in the first connection state and image data in the second connection state based on the selection signal, to process the received image data in the first connection state and the received image data in the second connection state, and to generate a data signal based on the processing.

公开(公告)号：US09858854B2

公开(公告)日：2018-01-02

申请号：US15092863

申请日：2016-04-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji-Myoung Seo ,  Dong-Won Park ,  Jae Wan Park ,  Po-Yun Park ,  Hong-Kyu Kim ,  Bonghyun You ,  Jung-Hwan Cho

IPC: G09G5/00 ,  G09G3/20 ,  G09G3/36

CPC classification number: G09G3/2096 ,  G09G3/3614 ,  G09G3/3648 ,  G09G3/3696 ,  G09G5/393 ,  G09G2310/08 ,  G09G2330/023 ,  G09G2340/0435 ,  G09G2360/02 ,  G09G2360/18

Abstract: A display apparatus includes a display panel comprising a plurality of data lines and a plurality of gate lines crossing the plurality of data lines, a frequency detector configured to receive an input synchronization signal with an input frequency which is varying in a preset frequency range and to count clock cycles of an input frame in the input synchronization signal, and a synchronization signal generator configured to generate an output synchronization signal which has an insertion frame corresponding to a frame of maximum frequency within the preset frequency range and inset the insertion frame in a vertical blanking period of the input frame, based on the clock count.