公开(公告)号：US12161033B2

公开(公告)日：2024-12-03

申请号：US18366046

申请日：2023-08-07

Applicant: Samsung Display Co., Ltd.

Inventor： Wontae Kim ,  Myeongsu Kim ,  Boyeon Kim ,  Jae-Han Lee ,  Whee-Won Lee

IPC: H10K59/131 ,  G09G3/3208

Abstract: A display device includes a display panel including an edge extending along a first direction, a main circuit board adjacent to the edge of the display panel, and a connection circuit board which connects the main circuit board to the display panel at the edge thereof. The connection circuit board includes a plurality of board side pads which are arranged along the first direction and at which the connection circuit board is connected to the main circuit board. Each of the plurality of board side pads includes a first pad, and a second pad adjacent to the first pad along the first direction. The second pad includes a plurality of signal pads which are arranged along a second direction which crosses the first direction and are each aligned with the first pad along the first direction.

公开(公告)号：US11482183B2

公开(公告)日：2022-10-25

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：US10685617B2

公开(公告)日：2020-06-16

申请号：US16110304

申请日：2018-08-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Taegon Im ,  Boyeon Kim ,  Dongwon Park ,  Junghwan Cho

IPC: G09G3/36

Abstract: A display device having a charging compensation circuit to reduce/eliminate display stains based on pixels being charged at unequal charging rates. A data driving circuit of a display device includes an output circuit for converting an image signal into a data signal in response to a clock signal, and providing the data signal to a plurality of data lines, and a clock generating and compensating circuit for receiving a main clock signal and generating the clock signal, wherein the clock generating and compensating circuit detects a slew rate of the data signal provided to at least one of the plurality of data lines, and adjusts a phase of the clock signal depending on the detected slew rate.

公开(公告)号：US11605339B2

公开(公告)日：2023-03-14

申请号：US17246772

申请日：2021-05-03

Applicant: Samsung Display Co., Ltd.

Inventor： Boyeon Kim ,  Wheewon Lee ,  Wontae Kim ,  Jaehan Lee

IPC: G09G3/32 ,  G09G3/3225

Abstract: A display device includes a display panel including a plurality of sensing lines and a plurality of pixels each connected to a corresponding sensing line among the plurality of sensing lines, a sensor that senses characteristic information of the plurality of pixels through the plurality of sensing lines and converts the characteristic information into sensing data having a digital format, and a compensator that converts first data received from outside of the display device into second data based on the sensing data, wherein the sensor senses characteristic information of pixels arranged in a partial area of the display panel during a transition period of a sensing period and processes sensed characteristic information as dummy data.

公开(公告)号：US11017736B2

公开(公告)日：2021-05-25

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

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：US20190066621A1

公开(公告)日：2019-02-28

申请号：US16110304

申请日：2018-08-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Taegon Im ,  Boyeon Kim ,  Dongwon Park ,  Junghwan Cho

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G3/3677 ,  G09G3/3696 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/041

Abstract: A display device having a charging compensation circuit to reduce/eliminate display stains based on pixels being charged at unequal charging rates. A data driving circuit of a display device includes an output circuit for converting an image signal into a data signal in response to a clock signal, and providing the data signal to a plurality of data lines, and a clock generating and compensating circuit for receiving a main clock signal and generating the clock signal, wherein the clock generating and compensating circuit detects a slew rate of the data signal provided to at least one of the plurality of data lines, and adjusts a phase of the clock signal depending on the detected slew rate.

公开(公告)号：US11361714B2

公开(公告)日：2022-06-14

申请号：US17315784

申请日：2021-05-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae-Han Lee ,  Myeongsu Kim ,  Wontae Kim ,  Boyeon Kim ,  Whee-Won Lee

IPC: G09G3/3258

Abstract: A data driver includes a plurality of amplifiers configured to output a plurality of data voltages to a plurality of data lines. The amplifiers are configured to output the data voltages to the corresponding data lines in a writing mode. Only one of the plurality of amplifiers is configured to output a sensing data voltage to the plurality of data lines in a sensing mode.

公开(公告)号：US10446106B2

公开(公告)日：2019-10-15

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 ,  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：US11770954B2

公开(公告)日：2023-09-26

申请号：US17950210

申请日：2022-09-22

Applicant: Samsung Display Co., Ltd.

Inventor： Wontae Kim ,  Myeongsu Kim ,  Boyeon Kim ,  Jae-Han Lee ,  Whee-Won Lee

IPC: H10K59/131 ,  G09G3/3208

CPC classification number: H10K59/131 ,  G09G3/3208 ,  G09G2300/0426

Abstract: A display device includes a display panel including an edge extending along a first direction, a main circuit board adjacent to the edge of the display panel, and a connection circuit board which connects the main circuit board to the display panel at the edge thereof. The connection circuit board includes a plurality of board side pads which are arranged along the first direction and at which the connection circuit board is connected to the main circuit board. Each of the plurality of board side pads includes a first pad, and a second pad adjacent to the first pad along the first direction. The second pad includes a plurality of signal pads which are arranged along a second direction which crosses the first direction and are each aligned with the first pad along the first direction.

公开(公告)号：US11741866B2

公开(公告)日：2023-08-29

申请号：US17389627

申请日：2021-07-30

Applicant: Samsung Display Co., Ltd.

Inventor： Wontae Kim ,  Myeongsu Kim ,  Boyeon Kim ,  Jae-Han Lee ,  Whee-Won Lee

IPC: G09G3/00 ,  H01L27/32 ,  H10K59/131

CPC classification number: G09G3/006 ,  H10K59/131

Abstract: A display device includes a display panel, a main circuit board including a plurality of board pads arranged along a first direction, a connection circuit board electrically connected to the display panel and the main circuit board, and a driving chip disposed on the connection circuit board. The connection circuit board includes a plurality of board connection pads respectively connected to a plurality of board pads, a plurality of lines connecting the driving chip to the plurality of board connection pads to each other, and a test pattern disposed spaced part from the driving chip, where a first line and a second line among the lines are electrically connected to the test pattern, and a same voltage is applied to the first line and the second line.