公开(公告)号：US20200051966A1

公开(公告)日：2020-02-13

申请号：US16373502

申请日：2019-04-02

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Chan Lee ,  Gun Hee Kim ,  Sang Ho Park ,  Ju Won Yoon ,  Joo Hee Jeon ,  Hyun Joon Kim

IPC: H01L25/18 ,  H01L25/00 ,  H01L51/00 ,  H01L27/32

Abstract: A display device and a method for fabricating the same. The display device includes a substrate including a circuit layer and a first pad unit; an auxiliary substrate disposed below the substrate and comprising a driving circuit and a second pad unit; a light-emitting unit disposed on the circuit layer; and a connection electrode in contact with a side surface of the substrate and electrically connecting the first pad unit with the second pad unit. The method includes forming a circuit layer and a first pad unit on a first surface of a substrate; forming a driving circuit and a second pad unit on a fourth surface of an auxiliary substrate; and attaching a second surface of the substrate opposite the first surface to a third surface of the auxiliary substrate opposite the fourth surface.

公开(公告)号：US10437121B2

公开(公告)日：2019-10-08

申请号：US14671712

申请日：2015-03-27

Applicant: Samsung Display Co., Ltd.

Inventor： Cheol-Gon Lee ,  Mee Hye Jung ,  In-Jae Hwang ,  Jang Mi Kang ,  Hyun Joon Kim

IPC: G02F1/1362 ,  G02F1/1368 ,  G02F1/1333 ,  G02F1/1343 ,  H01L27/12 ,  G02F1/136

Abstract: A liquid crystal display includes: a gate line extending in a first direction; a first data line and a second data line extending in a second direction; a thin film transistor (TFT) including a gate electrode connected to the gate line, a source electrode connected to the first data line, and a drain electrode; a vertical storage electrode line extending between the first and second data lines; a passivation layer disposed on the TFT and the vertical storage electrode line; an insulating layer disposed on the passivation layer; and a subpixel electrode disposed on the insulating layer, connected to the drain electrode, wherein the vertical storage electrode line includes an expansion, the insulating layer includes an opening exposing a portion of the passivation layer overlapping the expansion, and wherein the subpixel electrode includes a protrusion overlapping the expansion, a reinforced storage capacitor being formed between the protrusion and the expansion.

公开(公告)号：US20190130840A1

公开(公告)日：2019-05-02

申请号：US16052402

申请日：2018-08-01

Applicant: Samsung Display Co., Ltd.

Inventor： Yong Sung Park ,  Min Woo Byun ,  Kwang Chul Jung ,  Hyun Joon Kim ,  Sung Yoon Kim ,  Hyun Suk Yang ,  Doo Youl Lee

IPC: G09G3/3266

CPC classification number: G09G3/3266 ,  G09G2300/0426 ,  G09G2310/0232 ,  G09G2310/0281 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2330/04

Abstract: A display device includes: first pixels in a first pixel region and being connected to first scan lines; second pixels in a second pixel region that is located at a side of the first pixel region and has a width smaller than a width of the first pixel region and being connected to second scan lines; third pixels in a third pixel region that is spaced apart from the second pixel region and has a width smaller than the width of the first pixel region and being connected to third scan lines; a load matching unit in a peripheral region at an outside of the second pixel region and the third pixel region and configured to match loads of the second scan lines and the third scan lines to that of the first scan lines; and a protection unit in the peripheral region and being connected between the second and third pixels and the load matching unit.

公开(公告)号：US12254809B2

公开(公告)日：2025-03-18

申请号：US18422988

申请日：2024-01-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Hwan Hwang ,  Hyun Joon Kim ,  Kye Uk Lee ,  Jun Ki Jeong

IPC: G09G3/20 ,  G09G3/32

Abstract: A display device includes PAM data lines receiving PAM and PWM data voltages, and sub-pixels connected to the PAM and PWM data lines. A sub-pixel includes a light emitting element, a first pixel driver to supply a control current according to one of the PAM data voltages to a node, a second pixel driver to generate a driving current according to one of the PWM data voltages, and a third pixel driver to adjust a period during which the driving current is supplied to the light emitting element according to a voltage of the node. A peak current value of the driving current when the sub-pixel emits a light corresponding to a low gray level region is smaller than a peak current value of the driving current when the sub-pixel emits a light corresponding to a high gray level region higher than the low gray level region.

公开(公告)号：US12249273B2

公开(公告)日：2025-03-11

申请号：US18498018

申请日：2023-10-30

Applicant: Samsung Display Co., LTD.

Inventor： Jung Hwan Hwang ,  Hyun Joon Kim ,  Kye Uk Lee ,  Jun Ki Jeong ,  Sang Jin Jeon

IPC: G09G3/32

Abstract: A display device includes connection lines, pulse amplitude modulation (PAM) data lines configured to receive pulse width modulation (PWM) data voltages, PWM data lines configured to receive the PWM data voltages, a first connection control line configured to receive a first connection control signal, a second connection control line configured to receive a second connection control signal, subpixels connected to the PWM data lines and the PAM data lines, and a first demultiplexer (demux) unit configured to connect the connection lines to the PAM data lines or to the PWM data lines according to the first connection control signal and the second connection control signal.

公开(公告)号：US12165568B2

公开(公告)日：2024-12-10

申请号：US18353817

申请日：2023-07-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Hwan Hwang ,  Hyun Joon Kim ,  Kye Uk Lee ,  Sang Jin Jeon ,  Jun Ki Jeong

IPC: G09G3/22 ,  G09G3/3208 ,  G09G3/3233 ,  G09G3/3241 ,  G09G3/36

Abstract: A display device includes a first pixel driver connected to a sweep line, the first pixel driver generating a control current based on a first data voltage, a second pixel driver connected to a scan control line, the second pixel driver generating a driving current based on a second data voltage and controlling a period for which the driving current flows, based on the control current, and a light-emitting element connected to the second pixel driver to receive the driving current. The first pixel driver includes a first transistor generating the control current based on the first data voltage, a second transistor providing the first data voltage to a first electrode of the first transistor based on a scan write signal, and a first capacitor including a first capacitor electrode connected to a gate electrode of the first transistor, and a second capacitor electrode connected to the sweep line.

公开(公告)号：US12136381B2

公开(公告)日：2024-11-05

申请号：US17842927

申请日：2022-06-17

Applicant: Samsung Display Co., LTD.

Inventor： Jun Ki Jeong ,  Hyun Joon Kim ,  Kye Uk Lee ,  Sang Jin Jeon ,  Jung Hwan Hwang

IPC: G09G3/32

Abstract: A display device includes a display area which displays an image, and a non-display area disposed around the display area and including a pad part. The display area includes pixels of a first pixel row which are pixels arranged in a first direction along the first pixel row, pixels of a second pixel row, which are pixels arranged in the first direction along the second pixel row next to the first pixel row, and pixel circuits of a first circuit row which are pixel circuits arranged in the first direction along the first circuit row, where the pixel circuits of the first circuit row are electrically connected to the pixels of the first pixel row, respectively. The first pixel row and the first circuit row are spaced apart from each other with the second pixel row interposed therebetween.

公开(公告)号：US12080724B2

公开(公告)日：2024-09-03

申请号：US17737707

申请日：2022-05-05

Applicant: Samsung Display Co., LTD.

Inventor： Jun Ki Jeong ,  Hyun Joon Kim ,  Mee Hye Jung

IPC: H01L27/12 ,  G09G3/32 ,  H01L25/16 ,  H01L23/00 ,  H01L33/62

CPC classification number: H01L27/1248 ,  G09G3/32 ,  H01L25/167 ,  G09G2300/0439 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0243 ,  G09G2310/08 ,  G09G2330/04 ,  G09G2330/12 ,  H01L24/05 ,  H01L33/62 ,  H01L2224/05027 ,  H01L2224/05073 ,  H01L2224/05562 ,  H01L2224/05573

Abstract: A light emitting display device includes a pixel circuit unit, a data distribution unit, a plurality of signal generating units, a unit light emitting diode, and a dummy opening. The pixel circuit unit is configured to generate an output current. The data distribution unit is configured to apply a data voltage to the pixel circuit unit through a data line. The plurality of signal generating units are respectively configured to apply a scan signal and a light emission control signal to the pixel circuit unit through a plurality of signal lines. The unit light emitting diode is configured to receive the output current of the pixel circuit unit and is attached to the pixel circuit unit. The dummy opening is formed in the region where the pixel circuit unit, the data distribution unit, and a plurality of signal generating units are not positioned.

公开(公告)号：US11961461B2

公开(公告)日：2024-04-16

申请号：US18158347

申请日：2023-01-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Joon Kim ,  Kyung Hoon Chung

IPC: G09G3/32 ,  G09G3/12

CPC classification number: G09G3/12 ,  G09G2300/0809 ,  G09G2320/0242

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：US11908392B2

公开(公告)日：2024-02-20

申请号：US18072507

申请日：2022-11-30

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0852 ,  G09G2320/0233

Abstract: A display device including: a first transistor configured to control a control current based on a voltage of a first node; a second transistor configured to electrically connect a second node that is a first electrode of the first transistor to a first data line in response to a scan write signal; a third transistor configured to control a driving current based on a voltage of a third node; a fourth transistor configured to electrically connect a fourth node that is a first electrode of the third transistor to a second data line in response to the scan write signal; a fifth transistor configured to control the driving current based on a voltage of a fifth node having received the control current; and a light emitting element configured to receive the driving current, wherein the fifth transistor is of a different type from that of the first to fourth transistors.