公开(公告)号：US12033566B2

公开(公告)日：2024-07-09

申请号：US18127341

申请日：2023-03-28

Applicant: Samsung Display Co., Ltd.

Inventor： Jin-Wook Yang ,  Yu-Chol Kim ,  Sehyuk Park ,  Donggyu Lee ,  Jae-Hyeon Jeon

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/08

Abstract: A display device includes: a pixel electrically connected to a data line, a write scan line, an initialization scan line, a compensation scan line, a transmission control line, and an emission control line; a first driving circuit configured to provide a write scan signal to the write scan line and a second driving circuit configured to receive a plurality of clock signals, each of which has a time duration of one unit horizontal period and provide an initialization scan signal, a compensation scan signal, a transmission control signal, and an emission control signal to the initialization scan line, the compensation scan line, the transmission control line, and the emission control line, respectively. Each of the initialization scan signal and the compensation scan signal has an activation interval of one unit horizontal periods or more.

公开(公告)号：US11972730B2

公开(公告)日：2024-04-30

申请号：US18126650

申请日：2023-03-27

Applicant: Samsung Display Co., Ltd.

Inventor： Donggyu Lee ,  Jin-Wook Yang ,  Jae-Hyeon Jeon

IPC: G09G5/00 ,  G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0264 ,  G09G2310/08 ,  G09G2330/021

Abstract: A display device includes: a display panel and a panel driver for driving the display panel during a plurality of driving frames whose frequencies are varied. Among the driving frames, a first driving frame having a first frequency includes a first write period, and a second driving frame having a second frequency lower than the first frequency includes a second write period and a variable blank period. The panel driver includes a data driver and a driving controller. Each of the first and second write periods includes N horizontal periods (N is an integer number equal to or greater than 1), each of the N horizontal periods has a first duration, and each of the first and second write periods has a second duration corresponding to N times of the first duration. The driving controller applies a training synchronizing signal to the data driver during the variable blank period.

公开(公告)号：US10235944B2

公开(公告)日：2019-03-19

申请号：US15434590

申请日：2017-02-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong-Hoon Lee ,  Hui Nam ,  Byung-Sun Kim ,  Jae-Hyeon Jeon ,  Myung-Ho Lee

IPC: G09G3/3291 ,  G09G3/20 ,  G09G5/391 ,  G06F1/3234

Abstract: A display apparatus includes a display and a controller. The display includes a plurality color sub-pixels, each including an organic light emitting diode and a driving transistor to drive the organic light emitting diode. The driving transistor drives in a saturation region for a normal mode and in a linear region for a standby mode. The controller controls a first portion of preset-color sub-pixels among the color sub-pixels to emit light and a second portion of the preset-color sub-pixels among the color sub-pixels to not emit light in the standby mode.

公开(公告)号：US12283235B2

公开(公告)日：2025-04-22

申请号：US18661597

申请日：2024-05-11

Applicant: Samsung Display Co., LTD.

Inventor： Jin-Wook Yang ,  Yu-Chol Kim ,  Donggyu Lee ,  Jae-Hyeon Jeon

IPC: G09G3/32

Abstract: A pixel includes: a light-emitting element including an anode and a cathode, a first transistor including a first and a second electrode and a gate electrode connected with a first node, a third transistor connected between the second electrode of the first transistor and the first node and including a gate electrode connected with a first scan line, a sixth transistor connected between the second electrode of the first transistor and the anode and including a gate electrode connected with a first emission line, and a seventh transistor connected between the anode and an initialization voltage line and including a gate electrode connected with a second scan line. During an initialization period, the third, sixth, and seventh transistors are turned on such that an initialization voltage from the initialization voltage line is transferred to the gate electrode of the first transistor.

公开(公告)号：US11170713B2

公开(公告)日：2021-11-09

申请号：US16711755

申请日：2019-12-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jae-Hyeon Jeon ,  Jihye Kim

IPC: G09G3/3233 ,  G09G5/14 ,  G09G3/36

Abstract: A display device includes a foldable display panel including first and second display areas configured to fold along a folding axis extending in a first direction, a first sensing line coupled to pixels in the first display area, and a second sensing line coupled to pixels in the second display area, a sensing unit coupled to the first and second sensing lines, and configured to generate first and second sensing data by sensing current of the pixels coupled to the first sensing line and to the second sensing line, and a timing controller configured to generate compensation data provided to the pixels in the first and second display areas based on the first and second sensing data, respectively, wherein the first and second sensing lines extend in a second direction that is substantially perpendicular to the first direction, and wherein the first and second sensing lines are alternately arranged.

公开(公告)号：US11107398B2

公开(公告)日：2021-08-31

申请号：US16740022

申请日：2020-01-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Wontae Kim ,  Jihye Kim ,  Jae-Hyeon Jeon

IPC: G09G3/3225 ,  G09G3/3275 ,  G09G3/3266

Abstract: A pixel driver includes a plurality of stages, with each stage including a pixel driving signal generator, a shift register, and a selection circuit. The pixel driving signal generator generates a pixel driving signal. The shift register receives image data and the pixel driving signal and generates an output control signal for determining whether to output the pixel driving signal based on the image data and the pixel driving signal. The selection circuit selectively outputs the pixel driving signal in response to the output control signal.

公开(公告)号：US12236874B2

公开(公告)日：2025-02-25

申请号：US18347168

申请日：2023-07-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sehyuk Park ,  Youngha Sohn ,  Jin-Wook Yang ,  Donggyu Lee ,  Jae-Hyeon Jeon

IPC: G09G3/3233

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver is configured to output a gate signal to the pixel. The data driver is configured to output a data voltage to the pixel. The emission driver is configured to output an emission signal to the pixel. The pixel includes a light emitting element, a driving switching element configured to apply a driving current to the light emitting element and a bias switching element configured to apply a bias voltage to the driving switching element. The display apparatus increases a level of the bias voltage when a duration of a light emission time of the pixel is increased.

公开(公告)号：US11961463B2

公开(公告)日：2024-04-16

申请号：US18196137

申请日：2023-05-11

Applicant: Samsung Display Co., LTD.

Inventor： Jin-Wook Yang ,  Yu-Chol Kim ,  Donggyu Lee ,  Jaekeun Lim ,  Jae-Hyeon Jeon

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0216 ,  G09G2310/0267 ,  G09G2330/028

Abstract: A pixel connected to a first scan line includes a light-emitting element including an anode and a cathode, a first transistor including a first electrode, a second electrode, and a gate electrode connected to a first node, a first capacitor connected between the first node and a second node, a second transistor connected between the second electrode of the first transistor and the first node including a gate electrode connected to the first scan line, a third transistor including a first electrode, a second electrode connected to the second node, and a gate electrode connected to the first scan line, and a fourth transistor including a first electrode connected to a first driving voltage line, a second electrode connected to the first electrode of the first transistor, and a gate electrode connected to the first scan line.

公开(公告)号：US11955066B2

公开(公告)日：2024-04-09

申请号：US18132242

申请日：2023-04-07

Applicant: Samsung Display Co., LTD.

Inventor： Jin-Wook Yang ,  Sehyuk Park ,  Donggyu Lee ,  Jae-Hyeon Jeon

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2330/021

Abstract: A display device includes: a display panel which displays an image corresponding to each of a plurality of frames, and a source driver which drives the display panel. The plurality of frames includes a first frame operating at a first operating frequency, and a second frame operating at a frequency higher than the first operating frequency. The first frame includes a write cycle section, a hold cycle section, and a blank section including a standby section. The source driver operates in a normal driving mode during the write cycle section and the hold cycle section, and operates in a low-power driving mode during the standby section.

公开(公告)号：US11482174B2

公开(公告)日：2022-10-25

申请号：US16903295

申请日：2020-06-16

Applicant: Samsung Display Co., Ltd.

Inventor： Yu-Chol Kim ,  Jin-Wook Yang ,  Ji Hye Kim ,  Young Ha Sohn ,  Jae-Hyeon Jeon

IPC: G09G3/325 ,  G09G3/3266 ,  G09G3/3291

Abstract: An embodiment provides a display device including: a light emitting diode; a driving transistor configured to supply a current to the light emitting diode; a switching transistor having an input electrode connected to a data line; and a voltage transmitting capacitor disposed between an output electrode of the switching transistor and a gate electrode of the driving transistor, wherein a data voltage applied to the data line may be transmitted to the gate electrode of the driving transistor through the voltage transmitting capacitor, and the data voltage may have a data voltage value from which a voltage variation variable is removed based on leakage of the switching transistor.