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公开(公告)号：US20250017066A1
公开(公告)日：2025-01-09
申请号：US18657660
申请日：2024-05-07
Applicant: Samsung Display Co., LTD.
Inventor： Won Jun LEE , Dong Woo KIM , Se Hyun LEE
Abstract: The present disclosure relates to a display device, and more particularly, to a display device capable of expanding the range of data voltages. According to an embodiment of the present disclosure, a display device includes: a substrate; a first electrode on the substrate; a second electrode on the first electrode; and a first middle layer between the first electrode and the second electrode in a first emission region, wherein the first middle layer includes a plurality of sub-middle layers in the first emission region, and the sub-middle layers of the first middle layer have different thicknesses.
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公开(公告)号：US20240332309A1
公开(公告)日：2024-10-03
申请号：US18604289
申请日：2024-03-13
Applicant: Samsung Display Co., Ltd.
Inventor： Won Jun LEE , Kwi Hyun KIM , Dong Woo KIM , Do Yeong PARK
IPC: H01L27/12 , H10K59/123 , H10K59/40 , H10K102/00
CPC classification number: H01L27/1225 , H01L27/1255 , H10K59/123 , H10K59/40 , H10K2102/311
Abstract: The present disclosure relates to a display device, and more particularly, to a display device capable of improving image quality by reducing or minimizing voltage fluctuations of a gate electrode of a driving transistor. The display device includes a substrate; a field effect transistor on the substrate; an oxide-based transistor on a layer different from the field effect transistor and connected to the field effect transistor through a contact hole in an insulating layer; and a pixel electrode on the oxide-based transistor.
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公开(公告)号：US20230368733A1
公开(公告)日：2023-11-16
申请号：US18223459
申请日：2023-07-18
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Yoon Jung CHAI , Won Jun LEE , Chol Ho KIM , Sung Hoon LIM , Yoo Seok JANG
IPC: G09G3/3233 , G09G3/3266
CPC classification number: G09G3/3233 , G09G3/3266 , G09G2300/0426 , G09G2300/0819 , G09G2310/0294 , G09G2320/0252 , G09G3/2007
Abstract: A display device includes: active stages each include a scan output circuit outputting a scan clock signal to a first output terminal and a carry output circuit outputting a carry clock signal to a second output terminal, when a voltage of a first node is at a logic high level. The scan output circuit and carry output circuit output a scan signal of a turn-off level to the first output terminal when a voltage of a second node or a carry signal is at a logic high level. An interval between pulses of the carry clock signal generated during one frame period is the same, and at least two of intervals between pulses of the scan clock signal generated during the one frame period are different from each other.
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公开(公告)号：US20220352252A1
公开(公告)日：2022-11-03
申请号：US17765296
申请日：2020-06-05
Applicant: Samsung Display Co., LTD.
Inventor： Won Jun LEE , Chol Ho KIM , Hong Bo KIM
Abstract: A display device comprises a display area, a non-display area surrounding the display area, pixels disposed in the display area of the substrate, each of the pixels including a first electrode, a second electrode, and light-emitting elements electrically connected to the first electrode and the second electrode, and a first voltage wiring disposed in the display area and the non-display area, the first voltage wiring electrically connected to at least some of the pixels. The first voltage wiring includes a first separation wiring disposed in the non-display area, and a second separation wiring disposed in the non-display area and spaced apart from the first separation wiring.
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公开(公告)号：US20250006125A1
公开(公告)日：2025-01-02
申请号：US18629024
申请日：2024-04-08
Applicant: Samsung Display Co., Ltd.
Inventor： Won Jun LEE , Kwi Hyun KIM , Yeon Kyung KIM
IPC: G09G3/3233 , G09G3/3266
Abstract: A pixel may include: a first transistor including a gate electrode connected to a first node, a first electrode connected to a first power line, and a second electrode connected to a second node, and; a second transistor including a first electrode connected to a data line, a second electrode, and a gate electrode connected to a first scan line; a third transistor connected between the data line and a third node, and including a gate electrode connected to a second scan line; a fourth transistor connected between the second node and the third node, and including a gate electrode connected to an emission control line; a first capacitor connected between the second transistor and the first node; a second capacitor connected between the first power line and the first node, and a light emitting element connected between the third node and a second power line.
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Patent Agency Ranking
公开(公告)号：US20240304146A1
公开(公告)日：2024-09-12
申请号：US18590704
申请日：2024-02-28
Applicant: Samsung Display Co., LTD.
Inventor： Won Jun LEE , Yeon Kyung KIM , Kwi Hyun KIM , Dong Woo KIM
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2300/0819 , G09G2300/0852 , G09G2300/0861 , G09G2320/0233
Abstract: The present disclosure relates to a display device, and more particularly, to a display device capable of improving image quality and a method for driving the same. The display device includes a data line; a driving transistor connected to the data line through a first node; a pixel electrode connected to the driving transistor; and an initialization transistor connected between the data line and the pixel electrode, wherein one of a source electrode or a drain electrode of the initialization transistor is directly connected to the data line, and an other one of the source electrode or the drain electrode of the initialization transistor is directly connected to the pixel electrode.
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公开(公告)号：US20240135868A1
公开(公告)日：2024-04-25
申请号：US18457897
申请日：2023-08-28
Applicant: Samsung Display Co., LTD.
Inventor： Won Jun LEE , Yong Bin KIM , Chol Ho KIM
CPC classification number: G09G3/32 , G09G3/2007 , H01L25/167
Abstract: A pixel includes a first transistor generating current from a first power source line to a second power source line through a light-emitting element, a second transistor between a third power source line and a gate electrode of the first transistor, a third transistor between a data line and a gate electrode of the second transistor and controlled by a first signal, a fourth transistor between a fourth power source line and a first node and controlled by a second signal, a first capacitor between the gate electrode of the first transistor and the first node, and a second capacitor between the gate electrode of the second transistor and a sweep voltage line providing a sweep voltage that linearly changes from a first voltage level to a second voltage level, and nonlinearly changes from the second voltage level to a third voltage level when the third transistor is on.
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公开(公告)号：US20240006573A1
公开(公告)日：2024-01-04
申请号：US18338813
申请日：2023-06-21
Applicant: Samsung Display Co., LTD.
Inventor： Do Yeong PARK , Kyung Bae KIM , Won Jun LEE , Jong Woong CHANG
IPC: H01L33/62 , H01L25/075 , H01L25/16
CPC classification number: H01L33/62 , H01L25/0753 , H01L25/167 , G09G2330/12
Abstract: A display device includes electrodes spaced from each other in a display area, light emitting elements between the electrodes, test electrodes spaced from each other in a test area, and a test transistor electrically connected to the electrodes and the test electrodes.
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公开(公告)号：US20230420616A1
公开(公告)日：2023-12-28
申请号：US18338845
申请日：2023-06-21
Applicant: Samsung Display Co., LTD.
Inventor： Do Yeong PARK , Kyung Bae KIM , Won Jun LEE , Jong Woong CHANG
IPC: H01L33/38 , H01L25/075 , H01L33/62 , H01L33/50 , G09G3/00
CPC classification number: H01L33/387 , H01L25/0753 , H01L33/62 , H01L33/505 , G09G3/006 , G09G2330/10
Abstract: A display device including: a first sub-pixel, a second sub-pixel, and a third sub-pixel adjacent to each other, each of the first, second, and third sub-pixels including an emission area and a non-emission area, where each of the first, second, and third sub-pixels includes: a first alignment electrode and a second alignment electrode spaced from each other; a first insulating layer on the first alignment electrode and the second alignment electrode; light emitting elements on the first insulating layer on the first alignment electrode and the second alignment electrode in the emission area; a second insulating layer on the first insulating layer and the light emitting elements; and a third insulating layer on the second insulating layer, wherein the second and the third insulating layers are not on at least one area of the first alignment electrode in at least the non-emission area.
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10.发明公开公开(公告)号：US20230186849A1
公开(公告)日：2023-06-15
申请号：US17853129
申请日：2022-06-29
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Yoon Jung CHAI , Won Jun LEE , Chol Ho KIM , Sung Hoon LIM , Yoo Seok JANG
IPC: G09G3/3233 , G09G3/3266
CPC classification number: G09G3/3233 , G09G3/3266 , G09G2300/0426 , G09G2300/0819 , G09G2310/08 , G09G2320/0252 , G09G3/2007
Abstract: A display device includes: active stages each include a scan output circuit outputting a scan clock signal to a first output terminal and a carry output circuit outputting a carry clock signal to a second output terminal, when a voltage of a first node is at a logic high level. The scan output circuit and carry output circuit output a scan signal of a turn-off level to the first output terminal when a voltage of a second node or a carry signal is at a logic high level. An interval between pulses of the carry clock signal generated during one frame period is the same, and at least two of intervals between pulses of the scan clock signal generated during the one frame period are different from each other.
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