公开(公告)号：US11908380B2

公开(公告)日：2024-02-20

申请号：US17956111

申请日：2022-09-29

Applicant: Samsung Display Co., Ltd.

Inventor： Soon-Dong Kim ,  Taehoon Kim ,  Jin-Wook Yang ,  Changnoh Yoon

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/2096 ,  G09G3/32 ,  G09G2300/0819 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2330/028

Abstract: A display device includes a display panel including a first pixel connected to a first initialization scan line and a first compensation scan line and a second pixel connected to a second initialization scan line and a second compensation scan line, a scan driving circuit which provides a first initialization scan signal to the first initialization scan line and the second initialization scan line in common and provides a first compensation scan signal and a second compensation scan signal to the first compensation scan line and the second compensation scan line, and a driving controller which controls the scan driving circuit. A delay time from a time point at which the first initialization scan signal transitions from an active level to an inactive level to a time point at which the first compensation scan signal transitions from the inactive level to the active level is less than one horizontal period.

公开(公告)号：US11696475B2

公开(公告)日：2023-07-04

申请号：US17166017

申请日：2021-02-03

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L29/08 ,  H10K59/131 ,  H10K59/121

CPC classification number: H10K59/131 ,  H10K59/1213 ,  H10K59/1216

Abstract: A display device includes a display panel including a plurality of pixels. At least one of the pixel includes a light emitting diode, a first transistor connected between a power line receiving a power source voltage and an anode of the light emitting diode, a second transistor connected between a data line and a first reference node, a first capacitor connected between the power line and the first reference node, a second capacitor connected between the first reference node and a second reference node, a third transistor connected between the first reference node and a reference voltage line receiving a reference voltage, a fourth transistor connected between an initialization voltage line receiving an initialization voltage and a drain of the first transistor, and a fifth transistor connected between the drain of the first transistor and the anode of the light emitting diode.

公开(公告)号：US11676535B2

公开(公告)日：2023-06-13

申请号：US17586054

申请日：2022-01-27

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2310/0278 ,  G09G2320/0233

Abstract: A pixel of a display device includes a light-emitting diode and a pixel circuit that provides a current corresponding to a data signal to the light-emitting diode in response to a plurality of scan signals and a light emission control signal. The light emission control signal includes a first section and a second section, the second section includes a light-emission-on section and a light-emission-off section, the light emission control signal has an active level in the light-emission-on section and has an inactive level in each of the first section and the light-emission-off section, and the light-emission-on section and the light-emission-off section of the light emission control signal may vary depending on a light emission ratio of a dimming mode.

公开(公告)号：US11508320B2

公开(公告)日：2022-11-22

申请号：US17471217

申请日：2021-09-10

Applicant: Samsung Display Co., Ltd.

Inventor： Jihye Kim ,  Jakyoung Jin ,  Yu-Chol Kim ,  Jin-Wook Yang

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/3208

Abstract: A pixel of an OLED display device includes a first capacitor, a second capacitor, a first transistor configured to generate a driving current, a second transistor configured to transfer a data voltage to a first node, a third transistor configured to diode-connect the first transistor, a fourth transistor configured to transfer an initialization voltage to the second node, a fifth transistor configured to transfer a reference voltage to the first node, a sixth transistor configured to couple a drain of the first transistor and an anode of an organic light emitting diode, a seventh transistor configured to transfer the initialization voltage to the anode of the organic light emitting diode, an eighth transistor configured to transfer the initialization voltage to the drain of the first transistor, and the organic light emitting diode.

公开(公告)号：US11176889B2

公开(公告)日：2021-11-16

申请号：US16927729

申请日：2020-07-13

Applicant: Samsung Display Co., Ltd.

Inventor： Wontae Kim ,  Bong-Hyun You ,  Sun-Koo Kang ,  Joon Chul Goh ,  Soon-Dong Kim ,  Jin-Wook Yang ,  Ki Hong Song

IPC: G09G3/3258 ,  G09G3/3275

Abstract: A display apparatus includes a display panel, a data driver, and a power voltage generator. The display panel includes a plurality of pixels and configured to display an image. The data driver is configured to apply a data voltage to the display panel. The power voltage generator is configured to provide a power voltage and an initialization voltage to the display panel. The power voltage generator is configured to receive a feedback initialization voltage from the display panel and configured to compensate the initialization voltage based on the feedback initialization voltage.

公开(公告)号：US11049427B2

公开(公告)日：2021-06-29

申请号：US16799709

申请日：2020-02-24

Applicant: Samsung Display Co., Ltd.

Inventor： Wontae Kim ,  Jihye Kim ,  Jin-Wook Yang

IPC: G09F9/30 ,  G09G3/00

Abstract: A flexible display panel includes a first display area adjacent to a first end portion of the flexible display panel and a second display area adjacent to a second end portion of the flexible display panel. The flexible display panel is scanned from the first end portion of the flexible display panel to the second end portion of the flexible display panel in a first mode. In a second mode, the flexible display panel is concurrently scanned from the first end portion of the flexible display panel to a central portion of the flexible display panel and from the second end portion of the flexible display panel to the central portion of the flexible display panel.

公开(公告)号：US10650748B2

公开(公告)日：2020-05-12

申请号：US15863148

申请日：2018-01-05

Applicant: Samsung Display Co., Ltd.

Inventor： Soon-Dong Kim ,  Il-Joo Kim ,  Jun Ki Jeong ,  Jin-Wook Yang ,  Gyung Soon Park

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291 ,  H01L27/32 ,  G09G3/3233 ,  G09G3/3225 ,  H01L27/12

Abstract: Example embodiments of the present disclosure provide a display device including: a plurality of pixels; a first scan gate line and a second scan gate line configured to transfer scan signals to a first pixel row of the pixels; a plurality of first gate bridges connected with the first scan gate line to transfer the scan signals to a plurality of first pixels at the first pixel row; a plurality of second gate bridges connected with the second scan gate line to transfer the scan signals to a plurality of second pixels at the first pixel row; a plurality of first data lines configured to supply a plurality of data voltages corresponding to the first pixels; and a plurality of second data lines configured to supply a plurality of data voltages corresponding to the second pixels, wherein two of the first data lines are positioned between two first pixels corresponding thereto, and two of the second data lines are positioned between two second pixels corresponding thereto.

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：US11935453B2

公开(公告)日：2024-03-19

申请号：US17645081

申请日：2021-12-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sehyuk Park ,  Jinyoung Roh ,  Woomi Bae ,  Hae-Kwan Seo ,  Youngha Sohn ,  Jin-Wook Yang

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2330/021

Abstract: A display device includes four pixel arrays, a data driver, and a demultiplexer. The data driver is electrically connected to first and second data output lines. The demultiplexer electrically connects first and second data lines to the first data output line and electrically connects third and fourth data lines to the second data output line. The first to fourth pixel arrays are adjacent to the first to fourth data lines, respectively. Each of the first to fourth pixel arrays includes first and second color pixels. The first color pixels in the second pixel array are connected to the second data line, the second color pixels in the second pixel array are connected to the third data line, the second color pixels in the third pixel array are connected to the third data line, and the first color pixels in the third pixel array are connected to the second data line.