公开(公告)号：US20220335882A1

公开(公告)日：2022-10-20

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

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：US20230028210A1

公开(公告)日：2023-01-26

申请号：US17958835

申请日：2022-10-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kangjoo KIM ,  Sugyeung KANG ,  Yongsik KWAK ,  Yongil KWON ,  Sunkwon KIM ,  Uijong SONG ,  Sewoong AHN

IPC: G09G3/34

Abstract: A backlight system includes a backlight and a master driving circuit. The backlight includes a plurality of slave driving circuits and a plurality of light sources driven by the plurality of slave driving circuits, wherein the plurality of slave driving circuits are arranged in a matrix of driving rows and driving columns such that first through m-th slave driving circuits, where m is a positive integer greater than one, are arranged in each driving row of the driving rows, and the first through m-th slave driving circuits are connected in a daisy chain structure. The master driving circuit is configured to generate a plurality of input data signals, wherein each input data signal of the plurality of input data signals corresponds to the each driving row, and the each input data signal includes first through m-th packets including luminance data corresponding to the first through m-th slave driving circuits.

公开(公告)号：US20230023470A1

公开(公告)日：2023-01-26

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

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：US20240127764A1

公开(公告)日：2024-04-18

申请号：US18208543

申请日：2023-06-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junil PARK ,  Sugyeung KANG ,  Yongil Kwon ,  Kang Joo KIM ,  Alan Kyongho KIM ,  Sunkwon KIM ,  Yong-Yun PARK ,  Jung-Pil LIM ,  Hyunwook LIM

IPC: G09G3/34 ,  G09G5/00

CPC classification number: G09G3/3426 ,  G09G5/008

Abstract: In a backlight apparatus, a master driving circuit generates a transmission frame including a training period including a clock training pattern and a data period including a plurality of data packets respectively corresponding to the plurality of blocks. A plurality of slave driving circuits correspond to the plurality of blocks, respectively, and are connected to the master driving circuit in a daisy chain structure. Each slave driving circuit receives the transmission frame through the daisy chain structure, recovers a clock based on the clock training pattern, and drives the plurality of light emitting elements included in a corresponding block among the plurality of blocks based on its own data packet among a plurality of data packets.

公开(公告)号：US20220406246A1

公开(公告)日：2022-12-22

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

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.