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：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.