公开(公告)号：US11961950B2

公开(公告)日：2024-04-16

申请号：US17260963

申请日：2019-02-12

Applicant: Samsung Display Co., Ltd.

Inventor： Kyung Bae Kim ,  Hyun Joon Kim ,  Kyung Hoon Chung ,  Mee Hye Jung ,  Min Jae Jeong ,  Jun Ki Jeong

IPC: H01L33/62 ,  G09G3/32 ,  H01L25/075 ,  H01L33/38

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L33/387 ,  G09G3/32 ,  G09G2300/0426

Abstract: A display device comprises a substrate, a semiconductor layer thereon, a first insulating layer on the semiconductor layer, a first conductive layer on the first insulating layer and including a first electrode pattern, a second insulating layer on the first insulating layer and including first and second conductive patterns, a third insulating layer on the second conductive layer, and a display element layer on the third insulating layer and including a first pixel electrode connected to the first conductive pattern through a first via hole, a second pixel electrode connected to the second conductive pattern through a second via hole, and a micro light-emitting element between the pixel electrodes, the first conductive pattern contacting the semiconductor layer through a first contact hole and the first electrode pattern through a second contact hole, and the second conductive pattern overlapping the first electrode pattern to form a first capacitor therewith.

公开(公告)号：US11776973B2

公开(公告)日：2023-10-03

申请号：US17379917

申请日：2021-07-19

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Joon Kim ,  Kyung Bae Kim ,  Kyung Hoon Chung ,  Mee Hye Jung

IPC: H01L27/12 ,  H01L33/38 ,  H01L25/075 ,  H01L25/16 ,  H01L33/62 ,  H01L33/00 ,  H01L33/20

CPC classification number: H01L27/1296 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/124 ,  H01L33/387 ,  H01L33/0095 ,  H01L33/20 ,  H01L33/62 ,  H01L2933/0016

Abstract: A method of manufacturing a display device, the method including providing a substrate, forming a first electrode, a second electrode spaced from the first electrode and in a same plane as the first electrode, a first alignment line connected to the first electrode, and a second alignment line connected to the second electrode on the substrate, self-aligning the plurality of light emitting elements by providing a solution containing a plurality of light emitting elements on the substrate, removing the first alignment line and the second alignment line from the substrate on which the plurality of light emitting elements are self-aligned, forming a first contact electrode electrically connecting one end of each light emitting element to the first electrode, and forming a second contact electrode electrically connecting an other end of each light emitting element to the second electrode.

公开(公告)号：US11710432B2

公开(公告)日：2023-07-25

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

CPC classification number: G09G3/006 ,  G09G2300/0842 ,  G09G2330/10 ,  G09G2330/12

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：US12300178B2

公开(公告)日：2025-05-13

申请号：US18537939

申请日：2023-12-13

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

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：US12106715B2

公开(公告)日：2024-10-01

申请号：US18227032

申请日：2023-07-27

Applicant: Samsung Display Co., LTD.

Inventor： Kyung Hoon Chung

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0842

Abstract: A light-emitting display device includes a light-emitting element including an anode connected to a first driving voltage line, a first transistor including a gate electrode, a first electrode, and a second electrode, a second transistor including first and second electrodes respectively connected to a data line and the gate electrode, a third transistor including first and second electrodes respectively connected to the first driving voltage line and the first electrode of the first transistor, a fourth transistor including first and second electrodes respectively connected to a sensing line and the second electrode of the first transistor, a fifth transistor including first and second electrodes respectively connected to the second electrode of the first transistor, and a second driving voltage line, and a capacitor including first and second electrodes respectively connected to the gate electrode and the second electrode of the first transistor.

公开(公告)号：US11967277B2

公开(公告)日：2024-04-23

申请号：US17749084

申请日：2022-05-19

Applicant: Samsung Display Co., LTD.

Inventor： Kyung Hoon Chung

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2330/021

Abstract: A pixel circuit includes: a light emitting element having one end connected to a first power line supplying a first power voltage; a driving transistor for controlling an amount of current flowing to a second power voltage via the light emitting element electrically connected to a first electrode the driving transistor; an initialization transistor connected between a second electrode of the driving transistor and an initialization power line supplying an initialization voltage, the initialization transistor having a gate electrode connected to a first scan line; a compensation transistor connected between the first power line and the first electrode of the driving transistor, the compensation transistor having a gate electrode connected to a second scan line; and a storage capacitor connected between a gate electrode of the driving transistor and the second electrode of the driving transistor.

公开(公告)号：US11862500B2

公开(公告)日：2024-01-02

申请号：US17154861

申请日：2021-01-21

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Won Shim ,  Yoon Jae Lee ,  Sung Lae Kim ,  Kang Won Lee ,  Kyung Hoon Chung

IPC: H01L21/683 ,  H01L21/687 ,  C23C14/24 ,  C23C14/50 ,  H10K71/16

CPC classification number: H01L21/6833 ,  C23C14/24 ,  C23C14/50 ,  H01L21/6875 ,  H01L21/68771 ,  H10K71/16

Abstract: An apparatus for manufacturing a display device includes: a first housing having a first chamber; a support member disposed in the first chamber and including a frame having a plurality of openings; a plurality of adhesive patterns disposed on the frame; and a plurality of electrostatic supports overlapping the plurality of openings and supported for reciprocal movement in respective ones of the openings.

公开(公告)号：US11514834B2

公开(公告)日：2022-11-29

申请号：US17231492

申请日：2021-04-15

Applicant: SAMSUNG DISPLAY CO., LTD.

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

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

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：US09953576B2

公开(公告)日：2018-04-24

申请号：US14971877

申请日：2015-12-16

Applicant: Samsung Display Co., Ltd.

Inventor： Jung-Mi Choi ,  Chul Kyu Kang ,  Kyung Hoon Chung

IPC: G09G3/36 ,  G09G3/3258 ,  H01L27/32 ,  G09G3/20 ,  G09G3/3291 ,  G09G3/3266 ,  G09G3/3225

CPC classification number: G09G3/3258 ,  G09G3/2003 ,  G09G3/2018 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0413 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2310/0278 ,  G09G2310/08 ,  G09G2320/0223 ,  G09G2330/028 ,  H01L27/3223 ,  H01L27/3276

Abstract: An organic light-emitting diode display is disclosed. In one aspect, the display includes a display substrate including a display area and a peripheral area surrounding the display area. Scan lines are formed over the display substrate and configured to transmit a scan signal, data lines and driving voltage lines crossing the scan lines are configured to respectively provide a data signal and a driving voltage, and switching elements are electrically connected to the scan lines and data lines. Pixel electrodes are electrically connected to the switching elements, an organic emission layer is formed over the pixel electrodes, and a common electrode is formed over the organic emission layer. A common voltage line is formed substantially parallel to the data lines and configured to transmit a common voltage to the common electrode.

公开(公告)号：US12223888B2

公开(公告)日：2025-02-11

申请号：US18508214

申请日：2023-11-13

Applicant: SAMSUNG DISPLAY CO., LTD.

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

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