公开(公告)号：US20250006137A1

公开(公告)日：2025-01-02

申请号：US18741906

申请日：2024-06-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Heejin Lee ,  Minsung Kim ,  Sunkwon Kim ,  Seongyoung Ryu ,  Uijong Song ,  Yilho Lee ,  Yunrae Jo

IPC: G09G3/3275 ,  G09G3/00

Abstract: A display driving circuit includes a control logic, a source amplifier, and first and second switching elements. The source amplifier includes a first input terminal, a second input terminal, and an output terminal, and amplifies a pixel voltage for displaying an image on a display panel and provides the amplified pixel voltage to a pixel through a data line. The first switching element is connected between the first input terminal and the output terminal, and the second switching element is connected between the first input terminal and the sensing line. The control logic controls the first switching element and the second switching element such that the source amplifier compares a sample voltage that is input to the first input terminal through a sensing line with a comparison voltage input to the second input terminal and outputs comparison data based on the comparison.

公开(公告)号：US12223905B2

公开(公告)日：2025-02-11

申请号：US18590365

申请日：2024-02-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Uijong Song ,  Sunkwon Kim ,  Hyungjoong Kim ,  Seongyoung Ryu ,  Yilho Lee ,  Heejin Lee

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/131

Abstract: A display apparatus includes plural pixels, a scan driver, a data driver, and a read-out circuit that reads out an electrical characteristic of each of the pixels. Each of the pixels includes a first transistor, a second transistor, a third transistor, a fourth transistor including a first electrode connected with a power node, a second electrode connected with a first node, and a gate connected with a first emission control line, a fifth transistor including a first electrode connected with a third node, a second electrode, and a gate connected with a second emission control line, a sixth transistor including a first electrode connected with a read-out line, a second electrode connected with the third node, and a gate connected a the read-out/initialization control line, a capacitor connected between the first node and the second node, and an organic light-emitting diode.

公开(公告)号：US12092923B2

公开(公告)日：2024-09-17

申请号：US17940619

申请日：2022-09-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sugyeung Kang ,  Kangjoo Kim ,  Taehyeon Kwon ,  Sunkwon Kim ,  Sewoong Ahn ,  Sungmok Lee ,  Yilho Lee ,  Jongsung Lee ,  Changyeon Cho

IPC: G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/133603 ,  G02F1/133612

Abstract: A backlight system includes a plurality of pixel ICs respectively including a plurality of channels connected to a plurality of LEDs and that control the LEDs to be turned on and off through the channels, and a driver IC connected to the pixel ICs and that supplies a data signal to each of the pixel ICs. The pixel ICs include a first pixel IC connected to first LEDs and a second pixel IC connected to second LEDs. The first pixel IC turns the first LEDs on or off in a first order based on first control data included in the data signal, and the second pixel IC turns the second LEDs on or off in a second order different from the first order based on second control data included in the data signal.

公开(公告)号：US11942024B2

公开(公告)日：2024-03-26

申请号：US17748380

申请日：2022-05-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yilho Lee ,  Yongil Kwon ,  Sugyeung Kang ,  Taehyeon Kwon ,  Kangjoo Kim ,  Sunkwon Kim ,  Hyunsang Park

IPC: G09G3/32 ,  G09G3/00 ,  G09G3/20 ,  G09G3/28 ,  G09G3/30 ,  G09G3/3208 ,  G09G3/36

CPC classification number: G09G3/32 ,  G09G3/035 ,  G09G3/2088 ,  G09G3/28 ,  G09G3/30 ,  G09G3/3208 ,  G09G3/3611 ,  G09G2300/0857 ,  G09G2310/0286 ,  G09G2310/0289 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2330/08

Abstract: A display device includes: a cell matrix including a first cell line and a second cell line, wherein the first cell line includes first cells sharing first row lines, and the second cell line includes second cells sharing second row lines; a redundancy integrated circuit including a redundancy cell line including redundancy cells, wherein the redundancy cells share a third row line and are connected to the first and second cells through a plurality of column lines and a plurality of connection lines; and a display driver integrated circuit (DDI) configured to replace the first cell line or the second cell line with the redundancy cell line through the first row lines, the second row lines, and the third row line based on whether the first and second cell lines include a bad cell.

公开(公告)号：US20250014515A1

公开(公告)日：2025-01-09

申请号：US18758335

申请日：2024-06-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunkwon KIM ,  Uijong Song ,  Yongil Kwon ,  Seongyoung Ryu ,  Yilho Lee ,  Heejin Lee

IPC: G09G3/3233

Abstract: A display device includes pixels arranged in rows and columns, a scan driver, and a read-out circuit, wherein the read-out circuit is configured to read-out electrical properties of a pixel through the read-out line. The first pixel includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a ninth transistor, a first organic light-emitting diode connected between a second electrode of the seventh transistor and a ground node to which a ground voltage is applied, a second organic light-emitting diode between the second electrode of the eighth transistor and the ground node, and a third organic light-emitting diode connected between the second electrode of the ninth transistor and the ground node.

公开(公告)号：US12033551B2

公开(公告)日：2024-07-09

申请号：US18212981

申请日：2023-06-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yilho Lee ,  Yongil Kwon ,  Sugyeung Kang ,  Tae-Hyeon Kwon ,  Sunkwon Kim ,  Hyunsang Park ,  Uijong Song

IPC: G09G3/00 ,  G09G3/32

CPC classification number: G09G3/006 ,  G09G3/32 ,  G09G2330/12

Abstract: Disclosed is integrated circuit panel which detects fault of a driving circuit. The integrated circuit panel includes: a driving circuit array including first and second driving circuits; a data driver configured to output first and second input data signals through first and second data lines, respectively; a switch driver configured to output a switching signal through a switch line; and an error detection driver configured to receive first and second output data signals through first and second test lines, respectively, wherein, in response to the switching signal, the first and second driving circuits are configured to output the first and second output data signals, which are based on the first and second input data signal, through the first and second test lines, respectively, and the error detection driver is configured to detect a fault of the first or second driving circuit based on the first or second output data signal.

公开(公告)号：US12288495B2

公开(公告)日：2025-04-29

申请号：US18238885

申请日：2023-08-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seong-Young Ryu ,  Sunkwon Kim ,  Wangsuk Sung ,  Uijong Song ,  Yilho Lee ,  Heejin Lee ,  Hyunwook Lim

IPC: G09G3/20

Abstract: A display device is provided. The display device includes: a pixel array including pixels connected to gate lines and source lines; and a driving circuit configured to: apply gate signals to the gate lines and provide data signals to the source lines during a first scan period such that horizontal periods of the gate signals do not overlap each other, and apply the gate signals to first gate lines, of the gate lines, connected to pixels in a first area of the pixel array in a different manner from second gate lines, of the gate lines, connected to pixels in a second area of the pixel array for a portion of a second scan period, provide the data signals to the source lines, and maintain a low-biased state or an off state for a remaining portion of the second scan period.

公开(公告)号：US12073773B2

公开(公告)日：2024-08-27

申请号：US17520890

申请日：2021-11-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Taehyeon Kwon ,  Yongil Kwon ,  Sugyeung Kang ,  Kangjoo Kim ,  Sunkwon Kim ,  Hyunsang Park ,  Yilho Lee

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/0289 ,  G09G2310/0297 ,  G09G2310/08

Abstract: A device includes a pixel array, a row driver configured to, generate a plurality of control signals, drive a plurality of rows of the pixel array using the plurality of control signals, and generate a plurality of clock signals, a row multiplexer configured to receive the plurality of clock signals, and transmit one clock signal of the plurality of clock signals, a data driver configured to transmit a plurality of data signals to the pixel array by column units, each pixel of the plurality of pixels includes, a light emitting device, a shift register configured to receive the selectively transmitted clock signal from the row multiplexer, and generate a width adjusted pulse width modulation (PWM) signal based on a desired brightness level of the light emitting device, and a transistor configured to transmit a driving current to the light emitting device based on the PWM signal.

公开(公告)号：US11715399B2

公开(公告)日：2023-08-01

申请号：US17701065

申请日：2022-03-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yilho Lee ,  Yongil Kwon ,  Sugyeung Kang ,  Tae-Hyeon Kwon ,  Sunkwon Kim ,  Hyunsang Park ,  Uijong Song

IPC: G09G3/00 ,  G09G3/32

CPC classification number: G09G3/006 ,  G09G3/32 ,  G09G2330/12

Abstract: Disclosed is integrated circuit panel which detects fault of a driving circuit. The integrated circuit panel includes: a driving circuit array including first and second driving circuits; a data driver configured to output first and second input data signals through first and second data lines, respectively; a switch driver configured to output a switching signal through a switch line; and an error detection driver configured to receive first and second output data signals through first and second test lines, respectively, wherein, in response to the switching signal, the first and second driving circuits are configured to output the first and second output data signals, which are based on the first and second input data signal, through the first and second test lines, respectively, and the error detection driver is configured to detect a fault of the first or second driving circuit based on the first or second output data signal.