公开(公告)号：US20230124542A1

公开(公告)日：2023-04-20

申请号：US17849299

申请日：2022-06-24

Applicant: Samsung Display Co., LTD.

Inventor： Jung Hwan HWANG ,  Hyun Joon KIM ,  Kye Uk LEE ,  Sang Jin JEON ,  Jun Ki JEONG

IPC: G09G3/22

Abstract: A display device includes: a first pixel driver to generate a control current; a second pixel driver to generate a driving current, and control a period during 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 to generate the control current based on a first data voltage; and a second transistor to provide the first data voltage to a first electrode of the first transistor based on a scan write signal from a scan write line. The second pixel driver includes: a third transistor to generate the driving current based on the control current; and a fourth transistor to provide a second data voltage to a first electrode of the third transistor based on a scan write signal from the scan write line.

公开(公告)号：US20210343761A1

公开(公告)日：2021-11-04

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

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：US20210065632A1

公开(公告)日：2021-03-04

申请号：US16938408

申请日：2020-07-24

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Joon KIM

IPC: G09G3/3266 ,  G09G3/3275

Abstract: A scan driver includes stages, each of the stages receiving first and second clock signals having a first low level as an active level, and a third clock signal having a high level as the active level. Each of the stages includes a logic circuit that changes a voltage of a first node to the first low level based on an input signal and the first clock signal, and changes a voltage of the first node to a second low level lower than the first low level based on the second clock signal, a first output buffer that outputs, as an active-low scan signal, the second clock signal in response to the voltage of the first node, and a second output buffer that outputs, as an active-high scan signal, the third clock signal in response to the voltage of the first node.

公开(公告)号：US20180039134A1

公开(公告)日：2018-02-08

申请号：US15666945

申请日：2017-08-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung-Bae KIM ,  Il Gon KIM ,  Hyun Joon KIM

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/133528 ,  G02F1/133305 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/133617 ,  G02F1/136227 ,  G02F2001/133357 ,  G02F2001/133519 ,  G02F2001/133548 ,  G02F2001/136222

Abstract: A liquid crystal display according to an exemplary embodiment includes: a first substrate; a second substrate overlapping and separated from the first substrate; a liquid crystal layer between the first substrate and the second substrate; a first color conversion layer, a second color conversion layer, and a transmitting layer between the first substrate and the liquid crystal layer; a first polarization layer between the first color conversion layer and the liquid crystal layer, between the second color conversion layer and the liquid crystal layer, and between the transmitting layer and the liquid crystal layer; and a thin film transistor between the first polarization layer and the liquid crystal layer.

公开(公告)号：US20160313594A1

公开(公告)日：2016-10-27

申请号：US14934931

申请日：2015-11-06

Applicant: Samsung Display Co., Ltd.

Inventor： Hoon KIM ,  Hyun Joon KIM ,  Ki Chul SHIN

IPC: G02F1/1362 ,  G02F1/1343 ,  G02F1/1368

CPC classification number: G02F1/13624 ,  G02F2001/134345

Abstract: A liquid crystal display includes a first substrate and a second substrate facing each other, a gate line and a data line disposed on the first substrate, a first thin film transistor (“TFT”) and a second TFT connected to the gate line and the data line, a first subpixel electrode connected to the first TFT, a third TFT connected to the second TFT, a second subpixel electrode connected to the third TFT, and a liquid crystal layer interposed between the first substrate and the second substrate.

Abstract translation: 液晶显示器包括第一基板和彼此面对的第二基板，设置在第一基板上的栅极线和数据线，连接到栅极线的第一薄膜晶体管（“TFT”）和第二TFT， 数据线，连接到第一TFT的第一子像素电极，连接到第二TFT的第三TFT，连接到第三TFT的第二子像素电极，以及插入在第一衬底和第二衬底之间的液晶层。

公开(公告)号：US20240185785A1

公开(公告)日：2024-06-06

申请号：US18440765

申请日：2024-02-13

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.

公开(公告)号：US20230274705A1

公开(公告)日：2023-08-31

申请号：US18313601

申请日：2023-05-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Joon KIM ,  Jun Ki JEONG

IPC: G09G3/3266

CPC classification number: G09G3/3266 ,  G09G2310/061 ,  G09G2310/0278 ,  G09G2300/0842 ,  G09G2320/0233

Abstract: A pixel of a light-emitting display device includes a capacitor, a first transistor, a second transistor including a gate receiving a gate writing signal, a third transistor including a gate receiving a scan signal, a fourth transistor including a gate receiving a gate initialization signal, a fifth transistor including a gate receiving a first emission signal, a sixth transistor including a gate receiving a second emission signal, and a light-emitting diode. The scan signal and the gate writing signal may be provided at a first frequency, and the first emission signal, the second emission signal and the gate initialization signal may be provided at a second frequency higher than the first frequency.

公开(公告)号：US20230230533A1

公开(公告)日：2023-07-20

申请号：US18066111

申请日：2022-12-14

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Joon KIM ,  Kye Uk LEE ,  Sang Jin JEON ,  Jung Hwan HWANG

IPC: G09G3/32 ,  H01L25/16 ,  H01L27/12

CPC classification number: G09G3/32 ,  H01L25/167 ,  H01L27/124 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/026 ,  H01L24/05

Abstract: A display device includes a scan write line configured to receive a scan write signal, a scan initialization line configured to receive a scan initialization signal, a sweep signal line configured to receive a sweep signal, a first data line configured to receive a first data voltage, a second data line configured to receive a second data voltage, and a subpixel connected to the scan write line, the scan initialization line, the sweep signal line, the first data line, and the second data line. The subpixel includes a light-emitting element, a first pixel driver including a first transistor configured to generate a control current according to the first data voltage of the first data line, and a second pixel driver including an eighth transistor configured to generate a driving current applied to the light-emitting element according to the second data voltage.

公开(公告)号：US20230121681A1

公开(公告)日：2023-04-20

申请号：US17807690

申请日：2022-06-17

Applicant: Samsung Display Co., LTD.

Inventor： Jung Hwan HWANG ,  Hyun Joon KIM ,  Kye Uk LEE ,  Sang Jin JEON ,  Jun Ki JEONG

IPC: G09G3/32

Abstract: A display device includes a scan write line, a PWM emission line, a PAM emission line, a sweep signal line, a first data line, a second data line, and a subpixel connected thereto, and including a light emitting element, a first pixel driver to supply a control current to a node according to the first data voltage in response to the PWM emission signal, a second pixel driver to generate a driving current according to the second data voltage in response to the PWM emission signal, and a third pixel driver to supply the driving current to the light emitting element according to the PAM emission signal and a voltage of the node, wherein the PWM emission signal includes a plurality of PWM pulses, the PAM emission signal includes a plurality of PAM pulses, and a number of the PWM pulses is greater than a number of the PAM pulses.

公开(公告)号：US20230119036A1

公开(公告)日：2023-04-20

申请号：US17849277

申请日：2022-06-24

Applicant: Samsung Display Co., LTD.

Inventor： Jung Hwan HWANG ,  Hyun Joon KIM ,  Kye Uk LEE ,  Sang Jin JEON ,  Jun Ki JEONG

IPC: G09G3/22

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.