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公开(公告)号：US20240379465A1
公开(公告)日：2024-11-14
申请号：US18532105
申请日：2023-12-07
Applicant: Samsung Display Co., Ltd.
Inventor： Deok Jun CHOI , Hyo Jung KIM , KI YONG PARK , Yoo Young PARK , Hye Sun SUNG , Ji Hyeon SON , Seung Bo SHIM , Jeong Yong LEE
IPC: H01L21/66 , G09G3/3258 , G09G3/3291 , H10K59/12
Abstract: A method includes: forming a MOSFET layer on a semiconductor wafer substrate, the MOSFET layer including: pixel driver circuits; and a display driver circuit; forming at least one line layer on the MOSFET layer; applying a first supply voltage to a first supply voltage line through a first supply voltage pad; connecting data fan-out lines connected to the pixel driver circuits with a first test line by controlling a test switching circuit in the MOSFET layer; measuring an electrical signal generated from each of the pixel driver circuits through a first test pad connected to the first test line; determining whether each of the pixel driver circuits is defective or not based on the measured electrical signal; and forming a light-emitting element layer including light-emitting elements on the at least one line layer when that the pixel driver circuits are determined to be not defective.
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2.发明公开公开(公告)号：US20240331615A1
公开(公告)日：2024-10-03
申请号：US18493124
申请日：2023-10-24
Applicant: Samsung Display Co., LTD.
Inventor： Hyo Jung KIM , Seung Bo SHIM , Min Ji BAEK , Hye Sun SUNG , Ji Hyeon SON , Jeong Yong LEE
CPC classification number: G09G3/32 , H01L25/0753 , H01L25/167 , H01L27/1237 , H01L33/382 , H01L33/62 , G09G2320/0247 , G09G2320/0257 , H01L2933/0016
Abstract: A display device includes a first layer disposed on a base layer and including a first gate electrode, a first gate insulating layer, and an active layer, and a second layer disposed on the first layer and including a second gate electrode, a second gate insulating layer, and the active layer. The first layer and the second layer share the active layer. The first gate insulating layer has a first dielectric constant, and the second gate insulating layer has a second dielectric constant. The first dielectric constant and the second dielectric constant are different from each other.
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公开(公告)号：US20240268161A1
公开(公告)日：2024-08-08
申请号：US18490891
申请日：2023-10-20
Applicant: Samsung Display Co., LTD.
Inventor： Seung Bo SHIM , Hyo Jung KIM , Ji Hyeon SON , Jeong Yong LEE , Yoo Young PARK , Ji Myoung SEO
IPC: H10K59/123 , H01L29/786 , H10K59/12 , H10K71/16 , H10K71/60
CPC classification number: H10K59/123 , H01L29/7869 , H01L29/78696 , H10K59/1201 , H10K71/166 , H10K71/60
Abstract: A display device includes a first transistor, a pixel electrode electrically connected to the first transistor, and a second transistor electrically connected to the first transistor. A nitrogen content per unit area of an active layer of the second transistor is greater than a nitrogen content per unit area of an active layer of the first transistor.
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公开(公告)号：US20240038952A1
公开(公告)日：2024-02-01
申请号：US18116513
申请日：2023-03-02
Applicant: Samsung Display Co., LTD.
Inventor： In Woo KIM , Yong Tae CHO , Kook Hyun CHOI , Chang Woo KWON , Dae Cheol KIM , Jong Hwan PARK , Ji Hyeon SON
CPC classification number: H01L33/62 , H01L33/382 , H01L33/005 , H01L2933/0016 , H01L2933/0066
Abstract: A display device comprises a thin film transistor layer comprising a first metal layer disposed on a substrate and a thin film transistor disposed on the first metal layer, first and second electrodes disposed in a display area on the thin film transistor layer and extending in parallel in a direction, a plurality of light emitting elements disposed between the first and second electrodes, and an alignment line disposed in a non-display area disposed adjacent to the display area and electrically connected to the first and second electrodes. The alignment line comprises metal patterns disposed in the first metal layer and spaced apart from each other, and a bridge portion disposed on the first metal layer and electrically connected to the metal patterns.
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