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公开(公告)号：US12268060B2
公开(公告)日：2025-04-01
申请号：US17400274
申请日：2021-08-12
Applicant: Samsung Display Co., LTD.
Inventor： Yoon Ho Kim , Jong Woo Park , June Hwan Kim , Tae Young Kim , Ki Ju Im , Eun Byul Jo
IPC: H10K59/126 , H01L29/66 , H01L29/786 , H10K59/12 , H10K59/124
Abstract: A display device includes a substrate, a first semiconductor layer on the substrate and including an oxide semiconductor, a first gate insulating film on the first semiconductor layer, a first conductive layer on the first gate insulating film, a first interlayer insulating film on the first conductive layer, and a second conductive layer on the first interlayer insulating film and connected to the first semiconductor layer through a through-hole. The through-hole includes a first through-hole passing through the first interlayer insulating film, and a second through-hole overlapping the first through-hole and passing through the first semiconductor layer. The second conductive layer is in contact with a side surface of the first semiconductor layer exposed at the second through-hole.
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公开(公告)号：US12082443B2
公开(公告)日：2024-09-03
申请号：US18085076
申请日：2022-12-20
Applicant: Samsung Display Co., LTD.
Inventor： June Hwan Kim , Tae Young Kim , Jong Woo Park , Ki Ju Im , Ji Ho Moon , Hyun Cheol Hwang
IPC: H01L29/08 , G09G3/3233 , H10K59/121 , H10K59/131 , H10K71/00 , H01L27/12 , H01L29/66 , H01L29/786 , H10K59/12
CPC classification number: H10K59/1213 , G09G3/3233 , H10K59/1216 , H10K59/131 , H10K71/00 , G09G2300/0809 , H01L27/1222 , H01L27/124 , H01L27/1255 , H01L27/127 , H01L29/66757 , H01L29/78675 , H10K59/1201
Abstract: A display device includes an organic light emitting diode, a first transistor driving the organic light emitting diode, a second transistor transmitting a data signal to the first transistor, a third transistor transmitting a first power voltage to the first transistor, wherein a semiconductor pattern of the first transistor is disposed over a semiconductor pattern of the second transistor, a semiconductor pattern of the third transistor is disposed over the semiconductor pattern of the first transistor, a lower transistor insulating film is disposed between the semiconductor pattern of the first transistor and the semiconductor pattern of the second transistor, and an upper transistor insulating film is disposed between the semiconductor pattern of the first transistor and the semiconductor pattern of the third transistor.
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公开(公告)号：US11475835B2
公开(公告)日：2022-10-18
申请号：US17226817
申请日：2021-04-09
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hyo Jung Kim , Tae Young Kim , Yong Sung Park , Jong Woo Park , Mi Seon Seo , Keun Soo Lee , Ki Ju Im , Dae Youn Cho , Young Tae Choi , Hyun Cheol Hwang
IPC: G09G3/3233 , H01L27/32
Abstract: A display device includes a plurality of pixels. Each pixel includes a first transistor that controls an amount of current received from a first power supply voltage line connected via a second node to an organic light emitting diode in response to a voltage of a first node, a second transistor connected between a data line and the second node and that includes a first gate electrode connected to a first scan line, a light emitting line connected to a gate electrode of at least one light emitting transistor located in a current path between the first power supply voltage line and the organic light emitting diode, and a seventh transistor connected between one of at least one second gate electrode of the second transistor and the light emitting line. Accordingly, a threshold voltage of a switching transistor included in each of the plurality of pixels may be negatively shifted.
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公开(公告)号：US11081063B2
公开(公告)日：2021-08-03
申请号：US16372927
申请日：2019-04-02
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Dae Youn Cho , Sang Kil Kim , Hyo Jung Kim , Jong Woo Park , Dong Gi Ahn , Jong Won Lee , Ju Hee Lee , Young Tae Choi
IPC: G09G3/20 , G09G3/3291 , G09G3/3266 , G09G3/3233 , H01L27/32 , H01L51/50 , G09G3/00
Abstract: An organic light emitting display device includes scan lines arranged in horizontal lines, data lines intersecting the scan lines, a pixel array including pixels coupled to the scan lines and the data lines, the pixels including at least first color pixels, a panel tester including switching elements coupled to first ends of the data lines, the switching elements including at least first and second switching elements, and a first line coupled to the first switching elements and a second line coupled to the second switching elements. Data lines of K-th to (K+L)-th (where K and L are natural numbers) first color pixels arranged in a predetermined horizontal line are coupled to the first line through the first switching elements, and data lines of at least a part of remaining first color pixels arranged in the predetermined horizontal line are coupled to the second line through the second switching elements.
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公开(公告)号：US20210202650A1
公开(公告)日：2021-07-01
申请号：US16928322
申请日：2020-07-14
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： JUNG PYO HONG , So Ra Bak , Jong Woo Park , Su In Jin
IPC: H01L27/32 , H01L23/00 , H01L23/498
Abstract: A display device includes a display substrate including a display area and a pad area located around the display area, a plurality of light emitting elements located on the display area of the display substrate, a plurality of pads located on the pad area of the display substrate and connected to the plurality of light emitting elements, a flexible film attached to the display substrate, a plurality of lead wires disposed on the flexible film, and an anisotropic conductive film disposed between the display substrate and the flexible film. The anisotropic conductive film is disposed between each of the plurality of pads and a corresponding one of the plurality of lead wires overlapping each other to form an electrical connection therebetween. The flexible film has a light transmittance of 60% or more with respect to a visible light wavelength range.
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Patent Agency Ranking
公开(公告)号：US12159011B2
公开(公告)日：2024-12-03
申请号：US18104314
申请日：2023-02-01
Applicant: Samsung Display Co., Ltd.
Inventor： Yoon Ho Kim , June Hwan Kim , Jong Woo Park , Chaekyung Jung
Abstract: Provided is a display device comprising a display area including a plurality of pixels and a pad area disposed outside the display area, wherein the pad area includes a plurality of pads, and anchor structures positioned between two adjacent pads among the plurality of pads, the pad area includes a substrate, and at least one insulation layer that is positioned on the substrate and includes a first opening positioned between the two adjacent pads when viewed on the cross-section, and the anchor structure includes a first insulation layer that is positioned in the first opening, and does not overlap the pad.
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公开(公告)号：US11448550B2
公开(公告)日：2022-09-20
申请号：US17153678
申请日：2021-01-20
Applicant: Samsung Display Co., LTD.
Inventor： Dae Youn Cho , Eu Gene Kim , Ji Ho Moon , Jong Woo Park , Young Tae Choi
IPC: G01J1/42 , G09G3/3275
Abstract: An optical measurement device includes an optical sensor which measures an optical waveform of a reference object or a measurement object, a learner which receives a first optical waveform of the reference object from the optical sensor and learns frequency characteristics of the first optical waveform, a filter generator which analyzes the frequency characteristics of the first optical waveform and generates a frequency filter, a frequency modeling unit which receives a second optical waveform of the measurement object from the optical sensor and models frequency characteristics of the second optical waveform, and an optical characteristic detector which calculates an optical characteristic index of the second optical waveform based on an output value of the frequency modeling unit and the frequency filter.
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公开(公告)号：US11315482B2
公开(公告)日：2022-04-26
申请号：US16813982
申请日：2020-03-10
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Dae Youn Cho , Ji Ho Moon , Jong Woo Park , Young Tae Choi
Abstract: A pixel includes a light emitting device, a first transistor for controlling an amount of current flowing from a first power source to a second power source via the light emitting device, in response to a voltage applied to a first node, a second transistor coupled between a data line and a second node corresponding to a first electrode of the first transistor, and including a gate electrode coupled to a first scan line, a third transistor coupled between the first node and a third node corresponding to a second electrode of the first transistor, and including a gate electrode coupled to the first scan line, and a fourth transistor coupled between the third transistor and the third node, and configured to maintain a turn-on state.
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公开(公告)号：US20210256906A1
公开(公告)日：2021-08-19
申请号：US17226817
申请日：2021-04-09
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hyo Jung Kim , Tae Young Kim , Yong Sung Park , Jong Woo Park , Mi Seon Seo , Keun Soo Lee , Ki Ju Im , Dae Youn Cho , Young Tae Choi , Hyun Cheol Hwang
IPC: G09G3/3233 , H01L27/32
Abstract: A display device includes a plurality of pixels. Each pixel includes a first transistor that controls an amount of current received from a first power supply voltage line connected via a second node to an organic light emitting diode in response to a voltage of a first node, a second transistor connected between a data line and the second node and that includes a first gate electrode connected to a first scan line, a light emitting line connected to a gate electrode of at least one light emitting transistor located in a current path between the first power supply voltage line and the organic light emitting diode, and a seventh transistor connected between one of at least one second gate electrode of the second transistor and the light emitting line. Accordingly, a threshold voltage of a switching transistor included in each of the plurality of pixels may be negatively shifted.
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公开(公告)号：US10971560B2
公开(公告)日：2021-04-06
申请号：US16404021
申请日：2019-05-06
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hyo Jung Kim , June Hwan Kim , Jong Woo Park , Dae Guen Choi , Jae Sik Son , Young Tae Choi
Abstract: Disclosed herein are a display device, an apparatus for testing a display device, and a method for testing a display device. A display device includes a first substrate having a display area and a non-display area defined thereon, the non-display area being on an outer side of the display area. The non-display area may include a plurality of test pads and a first dummy thin-film transistor electrically connected to the test pads. The first dummy thin-film transistor includes a dummy gate electrode, and a dummy source electrode and a dummy drain electrode insulated from the gate electrode and spaced apart from each other. A bending area is defined on the first substrate that at least partially traverses the display area and the non-display area, the bending area overlaps the first dummy thin-film transistor.
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