公开(公告)号：US11164533B2

公开(公告)日：2021-11-02

申请号：US17093876

申请日：2020-11-10

Applicant: Samsung Display Co. Ltd.

Inventor： Jun Hyun Park ,  Sun Kwang Kim ,  Young Wan Seo ,  Cheol Gon Lee ,  Yang Hwa Choi

IPC: G09G3/3291 ,  G09G3/3258 ,  G09G3/3233 ,  G09G3/3266

Abstract: A display device includes a data line to which a data voltage is applied, a first driving voltage line to which a first driving voltage is applied, a second driving voltage line to which a second driving voltage is applied, and a pixel connected to the first and second driving voltage lines. The pixel includes a first transistor to control a driving current according to a voltage applied to a first node, a light emitting element between the first transistor and the first driving voltage line, and a capacitor between the first node and the second driving voltage line. The first driving voltage has a first high-level voltage during a first initialization period, the first driving voltage has a first mid-level voltage lower than the first high level voltage during a threshold-voltage-storage period, and the first driving voltage has a first low-level voltage during a second initialization period.

公开(公告)号：US20210280659A1

公开(公告)日：2021-09-09

申请号：US17139676

申请日：2020-12-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Hyeong Seok Kim ,  Young Wan Seo ,  Yu Jin Lee ,  Cheol Gon Lee

IPC: H01L27/32 ,  G09G3/3233 ,  H01L27/12

Abstract: A display device includes a display panel having a general area including first subpixels, and a sensor area including second subpixels and light-transmitting area. Each of the first subpixels and the second subpixels includes a first active layer disposed on a substrate and formed of a first material, a first gate layer disposed on the first active layer, a second gate layer disposed on the first gate layer, a second active layer disposed on the second gate layer and formed of a second material different from the first material, a third gate layer disposed on the second active layer, and a light-blocking layer disposed between the substrate and the first active layer and overlapping the second active layer in a thickness direction.

公开(公告)号：US11114033B2

公开(公告)日：2021-09-07

申请号：US16855038

申请日：2020-04-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Bon Yong Koo ,  Yu Jin Lee ,  Kyung Hoon Chung ,  Chong Chul Chai

IPC: G09G3/325 ,  G09G3/36 ,  G09G3/3291 ,  G09G3/3266

Abstract: A pixel including: a light emitter; a first transistor including first and second electrodes respectively connected to power and the light emitter, the first transistor controlling driving current; a first capacitor between a second and third node; a second transistor between the third node and data line and turned on by a scan signal; a third transistor between a first and second node, and turned on by a control signal; a fourth transistor between power and the third node, and turned on by a emission control signal; a fifth transistor between power and the first electrode, and turned on by the emission control signal; a sixth transistor between the second node and the light emitter, and turned on by another emission control signal; and a second capacitor between power and the first node, wherein the fourth, fifth and sixth transistors turn-on/off at least four times in a non-emission period.

公开(公告)号：US10810938B2

公开(公告)日：2020-10-20

申请号：US16278963

申请日：2019-02-19

Applicant: Samsung Display Co., Ltd.

Inventor： Ansu Lee ,  Jun Hyun Park ,  Boyong Chung ,  Kangmoon Jo

IPC: G09G3/3233 ,  G09G3/3291 ,  G09G3/3258 ,  H01L27/32

Abstract: An organic light emitting display device which secures a sufficient compensation time during which a threshold voltage of a driving transistor is compensated by driving a display panel using a simultaneous emission driving method by which a plurality of pixels simultaneously emit light. The organic light emitting display device may reduce a length (or, a time) of a non-emission period by storing a data signal of a current frame into a second capacitor of the pixel in an emission period of a previous frame and by adjusting a voltage at a gate electrode of a driving transistor of the pixel based on a voltage stored in the second capacitor in a data writing period of the current frame.

公开(公告)号：US20190259330A1

公开(公告)日：2019-08-22

申请号：US16278963

申请日：2019-02-19

Applicant: Samsung Display Co., Ltd.

Inventor： Ansu Lee ,  Jun Hyun Park ,  Boyong Chung ,  Kangmoon Jo

IPC: G09G3/3233 ,  G09G3/3291 ,  G09G3/3258 ,  H01L27/32

Abstract: An organic light emitting display device which secures a sufficient compensation time during which a threshold voltage of a driving transistor is compensated by driving a display panel using a simultaneous emission driving method by which a plurality of pixels simultaneously emit light. The organic light emitting display device may reduce a length (or, a time) of a non-emission period by storing a data signal of a current frame into a second capacitor of the pixel in an emission period of a previous frame and by adjusting a voltage at a gate electrode of a driving transistor of the pixel based on a voltage stored in the second capacitor in a data writing period of the current frame.

公开(公告)号：US10008143B2

公开(公告)日：2018-06-26

申请号：US15092466

申请日：2016-04-06

Applicant: Samsung Display Co., Ltd.

Inventor： Jun Hyun Park ,  Keum Nam Kim ,  Sung Hwan Kim ,  Kyoung Ju Shin

IPC: G09G5/00 ,  G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/0267 ,  G09G2310/0286

Abstract: In a scan driver including a plurality of stages configured to supply scan signals to scan lines, the scan driver includes: an i−1th stage configured to supply an i−1th scan signal to an i−1th scan line while controlling a node Qi−1 (i is a natural number) in response to a first clock signal, a third clock signal, and a control voltage; an ith stage configured to supply an ith scan signal to an ith scan line while controlling a node Qi in response to a second clock signal, a fourth clock signal, and the control voltage; and a controller connected to the i−1th stage and the ith stage, and configured to supply the control voltage.

公开(公告)号：US09940889B2

公开(公告)日：2018-04-10

申请号：US15172060

申请日：2016-06-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Sung Hwan Kim ,  Kyoung Ju Shin

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G2310/0286 ,  G09G2330/021

Abstract: A gate driving circuit including a plurality of stage circuits to output a plurality of gate signals, a N-th stage circuit of the plurality of stage circuits includes: an output pull-up part including a control electrode connected to a first node, the first node being configured to have a potential increase in response to a (N−1)-th control signal received from a previous stage circuit of the N-th stage circuit, the output pull-up part to receive a clock signal to output a gate signal of the N-th stage circuit; a control node pull-up part to control the potential of the first node by using the (N−1)-th control signal; and a control node pull-down part to discharge the first node to a second low voltage according to a (N+1)-th control signal, wherein the output pull-up part is to discharge the gate signal of the N-th stage circuit in a (N+2)-th stage circuit.

公开(公告)号：US09767753B2

公开(公告)日：2017-09-19

申请号：US15135425

申请日：2016-04-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Keum Nam Kim ,  Sung Hwan Kim ,  Kyoung Ju Shin

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2230/00 ,  G09G2310/0216 ,  G09G2310/0224 ,  G09G2310/0251 ,  G09G2310/0286 ,  G11C19/287

Abstract: A scan driver includes a plurality of stages configured to supply scan signals to scan lines. An ith (i is a natural number) stage of the stages at one side of a panel includes: a first transistor connected between a first input terminal and a first node, and including a gate electrode connected to a second input terminal; a second transistor connected between a third input terminal and a first output terminal for outputting an ith scan signal of the scan signals, and including a gate electrode connected to the first node; a third transistor connected between the first output terminal and a first power input terminal configured to receive a first off voltage, and including a gate electrode connected to the second input terminal; and a first capacitor connected between the first node and the first output terminal.

公开(公告)号：US12048214B2

公开(公告)日：2024-07-23

申请号：US18362933

申请日：2023-07-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Jang Mi Kang ,  Hyun Joon Kim ,  Hae Min Kim ,  Min Jae Jeong

IPC: H10K59/131 ,  G09G3/3233 ,  H10K50/813 ,  H10K59/122 ,  H10K59/35

CPC classification number: H10K59/131 ,  G09G3/3233 ,  H10K50/813 ,  H10K59/122 ,  H10K59/352 ,  G09G2300/0452 ,  G09G2300/0809

Abstract: A light emitting diode display device includes: a pixel circuit; a data line connected to the pixel circuit to transmit a data voltage; an anode on the pixel circuit and the data line; an emission layer on the anode; and a cathode on the emission layer. The anode includes a first anode and a second anode, and the data line extends across the first anode and the second anode.

公开(公告)号：US11922871B2

公开(公告)日：2024-03-05

申请号：US17388086

申请日：2021-07-29

Applicant: Samsung Display Co., LTD.

Inventor： Hae Min Kim ,  Min Jae Jeong ,  Jang Mi Kang ,  Hyun Joon Kim ,  Jun Hyun Park ,  Cheol-Gon Lee

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2310/0243 ,  G09G2310/0281 ,  G09G2310/08

Abstract: An emissive display device includes a display area which includes a plurality of pixels, and a driver disposed at a side of the display area, where the driver includes at least two emission signal stages disposed in one row, and an input signal line connected to the emission signal stages, and the at least two emission signal stages are connected to the same input signal line.