公开(公告)号：US12050305B2

公开(公告)日：2024-07-30

申请号：US17361560

申请日：2021-06-29

Applicant: Samsung Display Co., Ltd.

Inventor： Emil Aslanov ,  Je Kil Ryu ,  Hae Sook Lee ,  Kyung Hoon Chung ,  Gyoo Wan Han

IPC: B23K26/06 ,  B23K26/082 ,  G02B13/00 ,  G02B26/10 ,  G02B27/10

CPC classification number: G02B13/0005 ,  B23K26/0643 ,  B23K26/082 ,  G02B26/101 ,  G02B26/105 ,  G02B27/106

Abstract: A laser processing apparatus includes a laser source which generates a laser beam; a scanner unit disposed in an optical path of the laser beam from the laser source and which adjusts the optical path of the laser beam from the laser source in a first direction or in a second direction different from the first direction; and a reflector unit disposed in an optical path of the laser beam adjusted by the scanner unit and which reflects the laser beam adjusted by the scanner unit, where the reflector unit includes a first sub-reflector unit which shifts an optical path of the laser adjusted by the scanner unit in the first direction, and a second sub-reflector unit which shifts an optical path of the laser beam adjusted by the scanner unit in a third direction opposite to the first direction.

公开(公告)号：US11875743B2

公开(公告)日：2024-01-16

申请号：US17875601

申请日：2022-07-28

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/32 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/0257 ,  G09G2330/021

Abstract: A pixel including: a light emitting element; a first transistor connected between a first power source and a second node; a first capacitor connected to a first node or a second node and a third node; a second transistor between the third node and a data line, the second transistor turned on by a first scan signal; a third transistor between the first and second nodes, the third transistor turned on by a second scan signal; a fifth transistor between the first power source and the first transistor, the fifth transistor turned on by a first emission control signal; a sixth transistor between the second node and the light emitting element, the sixth transistor turned on by a second emission control signal; and an eighth transistor between the second node and a second emission control line, the eighth transistor turned on by a fourth scan signal.

公开(公告)号：US11869415B2

公开(公告)日：2024-01-09

申请号：US17719930

申请日：2022-04-13

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Joon Kim ,  Jung Hwan Hwang ,  Kyung Hoon Chung ,  Jun Ki Jeong

IPC: G09G3/32 ,  H03K17/687

CPC classification number: G09G3/32 ,  H03K17/6871 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/064

Abstract: A sweep signal driver includes: a kth stage to output a kth emission signal to a kth emission line, and a kth sweep signal to a kth sweep signal line, the kth stage including: first, second, and third pull-up nodes; a node connection circuit between the first pull-up node and the second pull-up node, and between the first pull-up node and the third pull-up node; a first output circuit to output a sweep clock signal of a sweep clock terminal to a first output terminal connected to the kth sweep signal line when the third pull-up node has a gate-on voltage; and a second output circuit to output a gate-on voltage to a second output terminal connected to the kth emission line when the second pull-up node has a gate-on voltage. A pulse of the kth sweep signal linearly changes from a gate-off voltage to the gate-on voltage.

公开(公告)号：US11562682B2

公开(公告)日：2023-01-24

申请号：US16924050

申请日：2020-07-08

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Joon Kim ,  Kyung Hoon Chung

IPC: G09G3/32

Abstract: A pixel circuit includes: a first transistor including a gate electrode connected to a first node, a source electrode connected to a first power line, and a drain electrode connected to a second power line; a light emitting element connected between the first transistor and the first or second power line; a second transistor connected between a data line and the first node, and including a gate electrode connected to a first scan line; a first capacitor connected between the first node and the source electrode of the first transistor; a third transistor connected between the first node and the first power line, and including a gate electrode connected to a second node; a fourth transistor connected between the second node and the data line, and including a gate electrode connected to a second scan line; and a second capacitor connected between the second node and a first control line.

公开(公告)号：US20220366852A1

公开(公告)日：2022-11-17

申请号：US17875601

申请日：2022-07-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Min Jae JEONG ,  Jun Hyun Park ,  Hyun Joon Kim ,  Kyung Hoon Chung ,  Jang Mi Kang ,  Hae Min Kim

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

Abstract: A pixel including: a light emitting element; a first transistor connected between a first power source and a second node; a first capacitor connected to a first node or a second node and a third node; a second transistor between the third node and a data line, the second transistor turned on by a first scan signal; a third transistor between the first and second nodes, the third transistor turned on by a second scan signal; a fifth transistor between the first power source and the first transistor, the fifth transistor turned on by a first emission control signal; a sixth transistor between the second node and the light emitting element, the sixth transistor turned on by a second emission control signal; and an eighth transistor between the second node and a second emission control line, the eighth transistor turned on by a fourth scan signal.

公开(公告)号：US11468704B2

公开(公告)日：2022-10-11

申请号：US17336995

申请日：2021-06-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sun Hwa Lee ,  Mu Kyung Jeon ,  Kyung Hoon Chung

IPC: G06V40/13 ,  H01L27/146 ,  H01L31/12 ,  G06V10/145 ,  G06V10/147

Abstract: A fingerprint sensor includes four transistors and a photodetector. The first transistor connects a second node with a third node based on a voltage of a first node, where the first node corresponding to a first electrode of the photodetector. The second transistor connects the second node with a read-out line based on a scan signal. The third transistor supplies a reset voltage to the first node based on a first reset signal. The fourth transistor connects the first node with the second node based on a second reset signal.

公开(公告)号：US11127343B2

公开(公告)日：2021-09-21

申请号：US16737602

申请日：2020-01-08

Applicant: Samsung Display Co., Ltd.

Inventor： Min Jae Jeong ,  Kyung Bae Kim ,  Chong Chul Chai ,  Kyung Hoon Chung

IPC: G09G3/32 ,  H01L33/36 ,  H01L25/075 ,  H01L33/62

Abstract: A display device includes a light-emitting diode including a first conductivity-type semiconductor, an active layer, and a second conductivity-type semiconductor; a first voltage line to which a first voltage is applied; a second voltage line to which a second voltage is applied; a first transistor including a source electrode electrically connected to the first voltage line and a drain electrode electrically connected to a first electrode of the light-emitting diode and to the first conductivity-type semiconductor; a second transistor including a drain electrode electrically connected to a gate electrode of the first transistor and a source electrode electrically connected to a data line to apply a data signal; a capacitor electrically connected to the gate electrode of the first transistor and the first electrode; and a third transistor including a source electrode electrically connected to the second voltage line and a drain electrode electrically connected to the first electrode.

公开(公告)号：US10983381B2

公开(公告)日：2021-04-20

申请号：US16534430

申请日：2019-08-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Ki Jeong ,  Hyun Joon Kim ,  Kyung Bae Kim ,  Kyung Hoon Chung ,  Chong Chul Chai

IPC: G02F1/1333 ,  F21V8/00 ,  G09G3/20

Abstract: A tiled display device includes an array of a plurality of display panels. Each of the plurality of display panels includes a plurality of pixels constituting a plurality of pixel rows and a plurality of pixel columns, a data distributor disposed between a first pixel of a first pixel row among the plurality of pixel rows and a second pixel of the first pixel row adjacent to the first pixel in a first direction, and a scan driver disposed between the second pixel and a third pixel adjacent to the second pixel in the first direction.

公开(公告)号：US20180345332A1

公开(公告)日：2018-12-06

申请号：US15991305

申请日：2018-05-29

Applicant: Samsung Display Co., Ltd.

Inventor： Myung Kyu KIM ,  Kyung Hoon Chung

IPC: B08B7/00

Abstract: A mask cleaning apparatus includes: a mask holding unit configured to hold a mask; a light source unit configured to irradiate light onto the mask to remove a deposition material accumulated on a surface of the mask; and a material collecting unit configured to collect the deposition material removed from the mask, wherein the material collecting unit includes: a plurality of collecting cases corresponding to kinds of the deposition material; a rotating plate having a suction hole; and a plate driving unit configured to rotate the rotating plate to connect the suction hole to at least one of the collecting cases. Based on the irradiated light, different organic deposition materials may be collected for reuse.

公开(公告)号：US12288709B2

公开(公告)日：2025-04-29

申请号：US17685298

申请日：2022-03-02

Applicant: Samsung Display Co., LTD. ,  ULVAC, INC.

Inventor： Kyung Hoon Chung ,  Masao Nishiguchi ,  Daisuke Iwase ,  Ki Jun Roh ,  Man Soo Jang

IPC: H01L21/67 ,  H01L21/677

Abstract: A vacuum processing apparatus including: a plurality of transport chambers arranged in order along a first direction; a plurality of process chambers connected to the transport chambers along a second direction that is perpendicular to the first direction; and a position conversion chamber connected to a first transport chamber among the transport chambers. The transport chambers include a rotational movement stage that rotates about a rotation axis that is perpendicular to the first direction and the second direction, and moves along a plane formed by the first direction and the second direction.