公开(公告)号：US20240127757A1

公开(公告)日：2024-04-18

申请号：US18397128

申请日：2023-12-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dae Sik LEE ,  Si Duk SUNG ,  Sang Hyun LEE

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2330/12

Abstract: A power management driver and a display device having the power management driver are provided, including a first power supply configured to supply a first voltage to a first driving power terminal of a pixel through a power line during a sensing period, and supply a second voltage to the first driving power terminal of the pixel through the power line during a display period; a controller configured to control timing at which the first voltage is output and timing at which the second voltage is output during a transition period between the display period and the sensing period in response to a sensing control signal; and a fault detector configured to detect a fault in the power line based on a current flowing through an output terminal during the sensing period.

公开(公告)号：US20210225291A1

公开(公告)日：2021-07-22

申请号：US17021430

申请日：2020-09-15

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hyun LEE ,  Si Duk SUNG ,  Dae Sik LEE

IPC: G09G3/3266 ,  G09G3/3275

Abstract: A display device includes a display unit including gate lines and pixels electrically coupled to the gate lines; a timing controller configured to generate an on-clock signal, an off-clock signal, an enable signal, and a common signal; a clock generator configured to generate a plurality of clock signals having different phases based on the on-clock signal and the off-clock signal, when the enable signal has a first voltage level, wherein the clock generator is to insert a common pulse into each of the plurality of clock signals based on the common signal, when the enable signal has a second voltage level different from the first voltage level; and a gate driver configured to generate gate signals based on the plurality of clock signals, and to sequentially provide the gate signals to the gate lines.

公开(公告)号：US20240395217A1

公开(公告)日：2024-11-28

申请号：US18791092

申请日：2024-07-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Hyun LEE ,  Si Duk SUNG ,  Dae Sik LEE

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

Abstract: A display device includes a display unit including gate lines and pixels electrically coupled to the gate lines; a timing controller configured to generate an on-clock signal, an off-clock signal, an enable signal, and a common signal; a clock generator configured to generate a plurality of clock signals having different phases based on the on-clock signal and the off-clock signal, when the enable signal has a first voltage level, wherein the clock generator is to insert a common pulse into each of the plurality of clock signals based on the common signal, when the enable signal has a second voltage level different from the first voltage level; and a gate driver configured to generate gate signals based on the plurality of clock signals, and to sequentially provide the gate signals to the gate lines.

公开(公告)号：US20250014513A1

公开(公告)日：2025-01-09

申请号：US18895394

申请日：2024-09-25

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hyun LEE ,  Si Duk SUNG ,  Dae-Sik LEE

IPC: G09G3/32

Abstract: The current disclosure relates to a display device including a display panel including a plurality of pixels, and a plurality of gate lines and a plurality of data lines connected to the plurality of pixels, a gate driver applying a gate signal to the plurality of gate lines, a data driver applying a data signal to the plurality of data lines, and a voltage provider configured to generate a gate-on voltage that is gradually changed in one frame and a kickback voltage that is gradually changed in one frame to transmit the gate-on voltage and the kickback voltage to the gate driver.

公开(公告)号：US20230162688A1

公开(公告)日：2023-05-25

申请号：US18158349

申请日：2023-01-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Hyun LEE ,  Si Duk SUNG ,  Dae Sik LEE

IPC: G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3266 ,  G09G3/3275 ,  G09G3/3233

Abstract: A display device includes a display unit including gate lines and pixels electrically coupled to the gate lines; a timing controller configured to generate an on-clock signal, an off-clock signal, an enable signal, and a common signal; a clock generator configured to generate a plurality of clock signals having different phases based on the on-clock signal and the off-clock signal, when the enable signal has a first voltage level, wherein the clock generator is to insert a common pulse into each of the plurality of clock signals based on the common signal, when the enable signal has a second voltage level different from the first voltage level; and a gate driver configured to generate gate signals based on the plurality of clock signals, and to sequentially provide the gate signals to the gate lines.

公开(公告)号：US20220293058A1

公开(公告)日：2022-09-15

申请号：US17832179

申请日：2022-06-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dae Sik LEE ,  Si Duk SUNG ,  Sang Hyun LEE

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

Abstract: A power management driver and a display device having the power management driver are provided, including a first power supply configured to supply a first voltage to a first driving power terminal of a pixel through a power line during a sensing period, and supply a second voltage to the first driving power terminal of the pixel through the power line during a display period; a controller configured to control timing at which the first voltage is output and timing at which the second voltage is output during a transition period between the display period and the sensing period in response to a sensing control signal; and a fault detector configured to detect a fault in the power line based on a current flowing through an output terminal during the sensing period.

公开(公告)号：US20210209989A1

公开(公告)日：2021-07-08

申请号：US17081427

申请日：2020-10-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Si Duk SUNG ,  Dae Sik LEE ,  Sang Hyun LEE

IPC: G09G3/20

Abstract: A display device includes a display panel including a plurality of pixels, a scan driver which supplies scan signals and sensing control signals to scan lines and sensing control lines, based on a clock signal, a power manager which applies initialization power to initialization lines, a sensor which senses threshold voltages of driving transistors, a detector which detects an error of the initialization lines and outputs line information indicating an initialization line having the error, a timing controller which changes a sensed threshold voltage using the initialization line having the error and generates image data with reference to a changed threshold voltage, and a data driver which supplies a data signal corresponding to the image data to data lines.

公开(公告)号：US20210142714A1

公开(公告)日：2021-05-13

申请号：US16917740

申请日：2020-06-30

Applicant: Samsung Display Co., Ltd.

Inventor： Si Duk SUNG ,  Sang Hyun LEE ,  Myeong Su KIM

IPC: G09G3/20

Abstract: A display device may include a timing controller, a level shifter, a gate driver, and a display panel. The timing controller may generate a first on-clock signal, a first off-clock signal, and a first output control signal. The level shifter may generate a first-type gate clock signal. A rising edge of the first-type gate clock signal and a falling edge of the first-type gate clock signal may be respectively synchronized with a rising edge of the first on-clock signal and a falling edge of the first off-clock signal. The gate driver may output first-type gate signals based on the first-type gate clock signal. The display panel may include pixels. The pixels may emit lights in response to the first-type gate signals. The level shifter may partially block a pulse of the first-type gate clock signal based on the first output control signal to generate sub-pulses.

公开(公告)号：US20240046868A1

公开(公告)日：2024-02-08

申请号：US18137485

申请日：2023-04-21

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hyun LEE ,  Dae Sik LEE ,  Keun Oh KANG ,  Si Duk SUNG ,  Song Yi HAN

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2310/08 ,  G09G2330/028 ,  G09G2330/04 ,  G09G2330/021

Abstract: The present inventive concept provides a display device including a pixel unit which includes pixels, a sensing unit connected to the pixels through sensing lines, a first power voltage generator connected to the pixels through a first power line and generating a first power voltage for driving the pixels, a second power voltage generator connected to the pixels through the first power line and generating a second power voltage for sensing the pixels, and a timing controller selectively controlling operations of the first power voltage generator and the second power voltage generator according to a driving method of the pixel unit, and a method driving the same.

公开(公告)号：US20220076624A1

公开(公告)日：2022-03-10

申请号：US17236481

申请日：2021-04-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： DAE SIK LEE ,  Si Duk SUNG ,  Sung Mo YANG ,  Sang Hyun LEE

IPC: G09G3/3233

Abstract: A display device includes a first power source, a timing controller, and pixels. The timing controller is connected to the first power source through a main line, an auxiliary line, and a detection line. The pixels are commonly connected to the first power source through a first power line. The first power source includes: a main power source connected to the first power line and the main line; an auxiliary power source connected to the auxiliary line; a rectifier connected between the auxiliary power source and the first power line; and a comparator comparing a voltage of the first power line and providing its output to the detection line.