公开(公告)号：US12238971B2

公开(公告)日：2025-02-25

申请号：US18528652

申请日：2023-12-04

Applicant: Samsung Display Co., Ltd.

Inventor： Juwon Yoon ,  Taehoon Yang

IPC: H01L27/14 ,  H10K59/121

Abstract: A display apparatus includes a substrate including a display area in which a display element is arranged, a first thin-film transistor arranged in the display area and including a first semiconductor layer and a first gate electrode insulated from the first semiconductor layer, the first semiconductor layer including a silicon semiconductor, a first interlayer insulating layer covering the first gate electrode, a second thin-film transistor on the first interlayer insulating layer and including a second semiconductor layer and a second gate electrode insulated from the second semiconductor layer, the second semiconductor layer including an oxide semiconductor, and an upper electrode arranged on the first interlayer insulating layer and including a same material as that of the second semiconductor layer and at least overlapping the first gate electrode.

公开(公告)号：US12238970B2

公开(公告)日：2025-02-25

申请号：US18491418

申请日：2023-10-20

Applicant: Samsung Display Co., LTD.

Inventor： Hae-Yeon Lee ,  Hyun-Chol Bang ,  Su Jin Kim ,  Bong Won Lee

IPC: H01L27/14 ,  G09G3/3233 ,  H10K59/121 ,  H10K59/131 ,  H01L27/12 ,  H01L29/786

Abstract: An emissive display device includes a polycrystalline semiconductor including a channel, source region, and drain region of a driving transistor disposed on a substrate. The device includes a gate electrode of the driving transistor overlapping the channel of the driving transistor, an oxide semiconductor including a channel, a source region, and a drain region of a second transistor disposed on the substrate, and a first connection electrode. The first connection electrode includes a first connector electrically connected to the gate electrode of the driving transistor, a second connector electrically connected to a second electrode of the second transistor, and a main body disposed between the first connector and the second connector. The device includes an initialization voltage line disposed on the substrate and applying an initialization voltage. The initialization voltage line surrounds at least a part of the second connector of the first connection electrode.

公开(公告)号：US12238960B2

公开(公告)日：2025-02-25

申请号：US18227346

申请日：2023-07-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Wonwoo Choi ,  Sooyoun Kim ,  Junghan Seo ,  Wooyong Sung ,  Seoyeon Lee ,  Hyoungsub Lee ,  Moonwon Chang ,  Seunggun Chae

IPC: H10K50/844 ,  H10K59/122 ,  H10K59/124

Abstract: A display panel includes a peripheral region adjacent to a display region. The display region includes a hole peripheral region, and a recessed region is overlapped with the hole peripheral region. The display panel also includes a barrier layer with a penetrating opening overlapped with the recessed region, a circuit layer on the barrier layer and including a transistor and insulating layers, and a device layer including an organic light emitting area coupled to the circuit layer. In addition, a module hole is overlapped with the hole peripheral region and penetrates the base substrate, and a first groove is overlapped with the hole peripheral region and corresponds to a portion of the base substrate that is recessed from a top surface of the barrier layer and that encloses the module hole. The insulating layers include inorganic layers and an organic layer having side portions enclosing the module hole.

公开(公告)号：US12237364B2

公开(公告)日：2025-02-25

申请号：US17747602

申请日：2022-05-18

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Deok Im ,  Buem Joon Kim ,  Won Ho Lee ,  Hae Yun Choi

IPC: H01L27/15 ,  H01L33/38

Abstract: A display device includes: a first sub-pixel having a first emission area and a first sub-area adjacent to each other in a first direction; and a bank extending around a portion of the first emission area and the first sub-area. The bank includes: a first wall extending around the first sub-area; and a second wall adjacent to the first emission area in a second direction crossing the first direction. The second wall and the first wall are spaced apart from each other in the first direction.

公开(公告)号：US12237360B2

公开(公告)日：2025-02-25

申请号：US17350704

申请日：2021-06-17

Applicant: Samsung Display Co., LTD.

Inventor： Jae Been Lee ,  Yi Joon Ahn

IPC: H01L27/15 ,  G09F9/33 ,  H01L25/075 ,  H01L25/16 ,  H01L33/38 ,  H01L33/62

Abstract: A display device includes display devices each including a display area and a non-display area adjacent to the display area, the display area of each of the display devices including a pixel, and a substrate on which each of the display devices is disposed. Each of the display devices includes a thin film transistor layer disposed on the substrate and including a thin film transistor, and a connection line electrically connected to the thin film transistor and disposed in the non-display area on the substrate. Connection lines of display devices adjacent to each other among the plurality of display devices are disposed staggered with respect to each other.

公开(公告)号：US12236879B2

公开(公告)日：2025-02-25

申请号：US18545798

申请日：2023-12-19

Applicant: Samsung Display Co., LTD.

Inventor： Nackhyeon Keum ,  Kwangsae Lee

IPC: G09G3/3233 ,  H10K59/88

Abstract: A display panel includes: first to N-th active pixels, N being an integer greater than 3; and a dummy pixel arranged adjacent to the N-th active pixel in a same pixel column, the dummy pixel including: a dummy driving transistor including a gate electrode connected to a first node, a first electrode connected to a data line configured to transmit a data voltage, and a second electrode connected to a second node; a plurality of dummy compensation transistors connected in parallel to each other between the first node and the second node; a dummy initialization transistor including a gate electrode configured to receive an initialization gate signal, a first electrode configured to receive an initialization voltage, and a second electrode connected to the first node; and a dummy storage capacitor including a first electrode configured to receive a first supply voltage and a second electrode connected to the first node.

公开(公告)号：US12236853B2

公开(公告)日：2025-02-25

申请号：US18457897

申请日：2023-08-29

Applicant: Samsung Display Co., LTD.

Inventor： Won Jun Lee ,  Yong Bin Kim ,  Chol Ho Kim

IPC: G09G5/10 ,  G09G3/20 ,  G09G3/32 ,  H01L25/16

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.

公开(公告)号：US12236849B2

公开(公告)日：2025-02-25

申请号：US18323336

申请日：2023-05-24

Applicant: Samsung Display Co., LTD.

Inventor： Junhyun Park ,  Youngwan Seo

IPC: G09G3/32

Abstract: A display device comprises a gate driver configured to receive a first gate driving voltage, configured to receive a second gate driving voltage that is greater than the first gate driving voltage, and configured to transmit a gate signal to a pixel, a data driver configured to transmit a data voltage to the pixel, and an electrostatic protection circuit configured to receive the first gate driving voltage and the data voltage, and including a first electrostatic diode including a first gate terminal connected to the first gate driving voltage, a first terminal connected to the first gate driving voltage, a second terminal connected to the data voltage, and a first lower gate terminal connected to a lower bias voltage.

公开(公告)号：US12236572B2

公开(公告)日：2025-02-25

申请号：US18596017

申请日：2024-03-05

Applicant: Samsung Display Co., Ltd.

Inventor： Mingyu Kim ,  Seyun Kim ,  Seungho Park ,  Hyungwoo Yim

IPC: G06T7/00 ,  G09G3/20

Abstract: An inspection system for inspecting a display device including pixels includes a camera for capturing the display device and providing a sensing image signal and an inspection device for receiving the sensing image signal and outputting a compensation signal for compensating for luminance of a defective pixel. The inspection device includes an image detector outputting a sensing input signal corresponding to the sensing image signal, a defect coordinate detector detecting the defective pixel based on the sensing input signal and outputting defect coordinates indicating a position of the defective pixel, an image analyzer analyzing consistency of the defect coordinates based on the sensing image signal and the sensing input signal and outputting final coordinates, and a defect compensation calculator outputting a compensation signal for adjusting luminance of compensation pixels adjacent to the defective pixel from among the pixels based on the final coordinates.

公开(公告)号：US12235538B2

公开(公告)日：2025-02-25

申请号：US18470620

申请日：2023-09-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung-Hun Lee

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/13357 ,  G02F1/1368

Abstract: A color conversion panel includes a substrate. A first color conversion layer, a second color conversion layer, and a transmission layer are provided on the substrate. A first scatterer layer is provided between the first color conversion layer and the second color conversion layer. A second scatterer layer is provided between the second color conversion layer and the transmission layer. A light filter layer is provided between the first scatterer layer and the first color conversion layer, between the first scatterer layer and the second color conversion layer, between the second scatterer layer and the second color conversion layer, and between the second scatterer layer and the transmission layer.