公开(公告)号：US20230008145A1

公开(公告)日：2023-01-12

申请号：US17663910

申请日：2022-05-18

Applicant: Samsung Display Co., LTD.

Inventor： Do Yeong PARK ,  Chong Chul CHAI

IPC: H01L27/12 ,  H01L25/16 ,  H01L23/00

Abstract: A display device includes a substrate including a display area in which pixels are located, and a non-display area, first and second electrodes in the display area and spaced from each other, light emitting elements between the first and second electrodes, connection electrodes electrically connected to the light emitting elements, a fan-out line electrically connected to the pixels in the non-display area, a first pad electrode on the fan-out line, a pad connection electrode on the fan-out line and the first pad electrode, and electrically connecting the fan-out line and the first pad electrode, and a second pad electrode at a same layer as at least one of the connection electrodes, and contacting the first pad electrode.

公开(公告)号：US20220285427A1

公开(公告)日：2022-09-08

申请号：US17452756

申请日：2021-10-28

Applicant: Samsung Display Co., Ltd.

Inventor： Sun Kwun SON ,  Na Hyeon CHA ,  Chong Chul CHAI

IPC: H01L27/15

Abstract: A display device may include first signal lines arranged in a display area, and extending in a first direction, pixels arranged in the display area, and respectively connected to the first signal lines, first pads located in a first pad area at a side of the display area in the first direction, and arranged along a second direction, first lines extending along the first direction to the display area from the first pad area, and respectively connected to the first pads, and second lines arranged in the display area, and respectively connecting the first lines to the first signal lines, wherein the display area includes a first sub-display area corresponding to the first pad area, and a second sub-display area adjacent the first sub-display area, and wherein the first lines are arranged only in the first sub-display area among the first and second sub-display areas.

公开(公告)号：US20220277677A1

公开(公告)日：2022-09-01

申请号：US17749690

申请日：2022-05-20

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Joon KIM ,  Jun Ki JEONG ,  Kyung Hoon CHUNG ,  Kyung Bae KIM ,  Seung Chan LEE ,  Chong Chul CHAI

IPC: G09G3/00

Abstract: A method of testing a display panel including a pixel coupled to first, second, and third power lines, a data line, scan lines, an emission control line, and a test line, the method includes: applying a first power supply voltage to the first power line; applying a test voltage having a turn-on voltage level to the second power line; applying a scan signal having a turn-on voltage level sequentially to the scan lines and an emission control signal having a turn-on voltage level to the emission control line; applying a gate signal to the test line to turn on a test transistor coupled between two electrode of a light emitting element included in the pixel; measuring a sensing voltage output through the data line; and determining whether the pixel is defective, based on a voltage level of the measured sensing voltage.

公开(公告)号：US20210265329A1

公开(公告)日：2021-08-26

申请号：US17003428

申请日：2020-08-26

Applicant: Samsung Display Co., Ltd.

Inventor： Min Kyu WOO ,  Kyung Bae KIM ,  Chong Chul CHAI

IPC: H01L25/16 ,  H01L33/62

Abstract: A display device includes: a base layer having a first area and a second area extending at least partially around a periphery of the first area; conductive patterns in the second area; an insulating layer over the conductive patterns in the second area; a first electrode and a second electrode on the insulating layer; and a plurality of light emitting elements between the first electrode and the second electrode in the first area and being connected to the first electrode and the second electrode. The first electrode and the second electrode are spaced apart from each other in the first area and are respectively connected to portions of the conductive patterns through contact openings penetrating the insulating layer. The light emitting elements do not overlap the conductive patterns and the insulating layer.

公开(公告)号：US20210027702A1

公开(公告)日：2021-01-28

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 ,  G09G3/3266 ,  G09G3/3291 ,  G09G3/36

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：US20200302840A1

公开(公告)日：2020-09-24

申请号：US16821706

申请日：2020-03-17

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Joon KIM ,  Jun Ki JEONG ,  Kyung Hoon CHUNG ,  Kyung Bae KIM ,  Seung Chan LEE ,  Chong Chul CHAI

IPC: G09G3/00

Abstract: A method of testing a display panel including a pixel coupled to first, second, and third power lines, a data line, scan lines, an emission control line, and a test line, the method includes: applying a first power supply voltage to the first power line; applying a test voltage having a turn-on voltage level to the second power line; applying a scan signal having a turn-on voltage level sequentially to the scan lines and an emission control signal having a turn-on voltage level to the emission control line; applying a gate signal to the test line to turn on a test transistor coupled between two electrode of a light emitting element included in the pixel; measuring a sensing voltage output through the data line; and determining whether the pixel is defective, based on a voltage level of the measured sensing voltage.

公开(公告)号：US20190148477A1

公开(公告)日：2019-05-16

申请号：US16189270

申请日：2018-11-13

Applicant: Samsung Display Co., Ltd.

Inventor： Jun Hyun PARK ,  Cheol Gon LEE ,  Chong Chul CHAI ,  Yang Hwa CHOI

IPC: H01L27/32

Abstract: A display device includes: an initialization power line extending along a first direction; a scan line extending along the first direction and spaced apart from the initialization power line, a data line and a driving voltage line insulated from the initialization power line and the scan line and extending along the second direction; a first switching element including a first electrode connected to the driving voltage line, a first gate electrode overlapping the initialization power line, and a second electrode; a second switching element including a third electrode connected to the first gate electrode, a second gate electrode connected to the scan line, and a fourth electrode; a third switching element including a fifth electrode connected to the fourth electrode, a third gate electrode connected to the initialization power line, and a sixth electrode connected to the second electrode; and a light emitting element connected to the second electrode.

公开(公告)号：US20180204510A1

公开(公告)日：2018-07-19

申请号：US15698420

申请日：2017-09-07

Applicant: Samsung Display Co., Ltd.

Inventor： Bo Yong CHUNG ,  Jun Hyun PARK ,  Young Wan SEO ,  An Su LEE ,  Kang Moon JO ,  Chong Chul CHAI

IPC: G09G3/3233 ,  H01L51/52

CPC classification number: G09G3/3233 ,  G09G2300/0417 ,  G09G2300/0439 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0866 ,  G09G2310/0251 ,  G09G2320/043 ,  H01L51/5206 ,  H01L51/5296

Abstract: A pixel including an organic light emitting diode; a first transistor for controlling the amount of current flowing from a first driving power source to a second driving power source via the organic light emitting diode, corresponding to a voltage of a first node; a second transistor coupled between the first node and a second node, the second transistor being turned on when a scan signal is supplied to an ith (i is a natural number) scan line; a third transistor coupled between the second node and an anode electrode of the organic light emitting diode; a first capacitor coupled between a data line and the second node; and a fourth transistor coupled between an initialization power source and the anode electrode of the organic light emitting diode. The fourth transistor is turned on in response to a first control signal being supplied to a first control line.

公开(公告)号：US20160372037A1

公开(公告)日：2016-12-22

申请号：US15078876

申请日：2016-03-23

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Keun LIM ,  Hee Rim SONG ,  Mu Kyung JEON ,  Chong Chul CHAI

IPC: G09G3/3233 ,  G09G3/3266 ,  H01L27/32

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0214 ,  G09G2320/0219 ,  G09G2320/0233 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276

Abstract: A pixel includes: an organic light emitting diode including a cathode electrode connected to a second power source; a first transistor including a first electrode connected to a first power source, and to control an amount of current flowing from the first power source to the second power source via the organic light emitting diode in response to a data signal; a plurality of second transistors connected in series between a gate electrode of the first transistor and an initialization power source, and to be turned on when a scan signal is supplied to an i−1-th (i is a natural number) scan line; and a first capacitor connected between a voltage source and a first node, the first node being between the plurality of second transistors.

Abstract translation: 像素包括：有机发光二极管，包括连接到第二电源的阴极; 第一晶体管，包括连接到第一电源的第一电极，并且响应于数据信号，经由有机发光二极管控制从第一电源流向第二电源的电流量; 多个第二晶体管串联连接在第一晶体管的栅电极和初始化电源之间，并且当向第i-1（i为自然数）扫描线提供扫描信号时导通; 以及连接在电压源和第一节点之间的第一电容器，所述第一节点位于所述多个第二晶体管之间。

公开(公告)号：US20150287392A1

公开(公告)日：2015-10-08

申请号：US14456926

申请日：2014-08-11

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Hee KIM ,  Hyun Joon KIM ,  Kyoung Ju SHIN ,  Alexander WARD ,  Cheol-Gon LEE ,  Chong Chul CHAI

IPC: G09G5/18 ,  G09G3/36 ,  H03K17/693

CPC classification number: H03K17/693 ,  G09G3/3677 ,  G09G2310/0286 ,  G09G2310/06

Abstract: A stage includes a first transistor including an input terminal to which a clock signal is applied and a control terminal connected to a first node; a first capacitor including terminals respectively connected to the first node and an output terminal of the first transistor; a second transistor including an input terminal connected to the output terminal of the first transistor, a control terminal connected to a second node, and an output terminal to which a low voltage is applied; a third transistor including an output terminal connected to the second node, a control terminal connected to the first node, and an input terminal to which the low voltage is applied; and a fourth transistor including an input terminal connected to the first node and an output terminal to which the low voltage is applied, wherein the fourth transistor is switched according to an output signal of a next stage.

Abstract translation: 舞台包括：第一晶体管，包括施加时钟信号的输入端子和连接到第一节点的控制端子; 第一电容器，包括分别连接到第一节点的端子和第一晶体管的输出端子; 第二晶体管，包括连接到第一晶体管的输出端子的输入端子，连接到第二节点的控制端子和施加低电压的输出端子; 第三晶体管，包括连接到第二节点的输出端子，连接到第一节点的控制端子和施加低电压的输入端子; 以及第四晶体管，其包括连接到所述第一节点的输入端子和施加所述低电压的输出端子，其中所述第四晶体管根据下一级的输出信号被切换。