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公开(公告)号：US10082907B2
公开(公告)日：2018-09-25
申请号：US15829671
申请日：2017-12-01
Applicant: LG Display Co., Ltd.
Inventor： Seungkyeom Kim , SungChul Kim , Sungsu Han , JiYeon Park
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044
Abstract: A driving circuit, a touch display device, and a method of driving the touch display device. A plurality of first electrodes are disposed within a display panel. A second electrode is disposed outside of the display panel. A driving circuit detects at least one of a touch position and a touching force of a touch by sequentially applying a first electrode driving signal to at least one first electrode among the plurality of first electrodes and applying a second electrode driving signal to the second electrode in a touch driving period. When a user touches a screen, not only can a touch position be sensed, but also a touching force with which the user presses the screen can also be efficiently sensed. This provides a range of functions that existing touch position-detecting technologies have failed to provide.
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公开(公告)号：US09864459B2
公开(公告)日：2018-01-09
申请号：US15222876
申请日：2016-07-28
Applicant: LG Display Co., Ltd.
Inventor： Seungkyeom Kim , SungChul Kim , Sungsu Han , JiYeon Park
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044
Abstract: A driving circuit, a touch display device, and a method of driving the touch display device. A plurality of first electrodes are disposed within a display panel. A second electrode is disposed outside of the display panel. A driving circuit detects at least one of a touch position and a touching force of a touch by sequentially applying a first electrode driving signal to at least one first electrode among the plurality of first electrodes and applying a second electrode driving signal to the second electrode in a touch driving period. When a user touches a screen, not only can a touch position be sensed, but also a touching force with which the user presses the screen can also be efficiently sensed. This provides a range of functions that existing touch position-detecting technologies have failed to provide.
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公开(公告)号：US11659727B2
公开(公告)日：2023-05-23
申请号：US17019115
申请日：2020-09-11
Applicant: LG Display Co., Ltd.
Inventor： SeungMin Baik , JiYeon Park , Ho-Jin Kim
CPC classification number: H01L51/5096 , H01L27/322 , H01L27/3244 , H01L51/5044 , H01L51/5072 , H01L51/5092 , H01L51/5271 , H01L51/5275
Abstract: Disclosed is an electroluminescent display device including a first pixel including a first sub pixel configured to emit first colored light, a second sub pixel configured to emit second colored light, and a third sub pixel configured to emit third colored light, a first electrode in the first sub pixel, an emission layer on the first electrode, a second electrode on the emission layer, and a first charge blocking layer provided below the second electrode and configured to prevent a light emission in the emission layer, wherein the first electrode is electrically connected with a driving thin film transistor in a first contact area provided in the first sub pixel, and the first charge blocking layer is overlapped with the first contact area.
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Patent Agency Ranking
公开(公告)号：US11362147B2
公开(公告)日：2022-06-14
申请号：US16526540
申请日：2019-07-30
Applicant: LG Display Co., Ltd.
Inventor： Ho-Jin Kim , Jonghyeok Im , Sukhyeun Jang , SeungMin Baik , JiYeon Park
Abstract: A display device includes: a substrate including: first to third subpixels, an insulating layer including a trench on the substrate between at least two among the first to third subpixels, a first electrode on the insulating layer in each of the first to third subpixels, a fence in each of the first to third subpixels, the fence surrounding an edge of the first electrode, a light-emitting layer on the first electrode, the fence, and the insulating layer, a second electrode on the light-emitting layer, and a color filter layer including: a first color filter in the first subpixel, a second color filter in the second subpixel, and a third color filter in the third subpixel, wherein the second color filter is wider than the first color filter, and wherein the second color filter partially overlaps the first subpixel.
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公开(公告)号：US11903231B2
公开(公告)日：2024-02-13
申请号：US18134525
申请日：2023-04-13
Applicant: LG Display Co., Ltd.
Inventor： SeungMin Baik , JiYeon Park , Ho-Jin Kim
IPC: H10K50/18 , H10K50/16 , H10K50/13 , H10K50/17 , H10K50/856 , H10K50/858 , H10K59/12 , H10K59/38 , H10K59/35
CPC classification number: H10K50/18 , H10K50/131 , H10K50/16 , H10K50/171 , H10K50/856 , H10K50/858 , H10K59/12 , H10K59/38
Abstract: Disclosed is an electroluminescent display device including a first pixel including a first sub pixel configured to emit first colored light, a second sub pixel configured to emit second colored light, and a third sub pixel configured to emit third colored light, a first electrode in the first sub pixel, an emission layer on the first electrode, a second electrode on the emission layer, and a first charge blocking layer provided below the second electrode and configured to prevent a light emission in the emission layer, wherein the first electrode is electrically connected with a driving thin film transistor in a first contact area provided in the first sub pixel, and the first charge blocking layer is overlapped with the first contact area.
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公开(公告)号：US11183669B2
公开(公告)日：2021-11-23
申请号：US16435723
申请日：2019-06-10
Applicant: LG Display Co., Ltd.
Inventor： Hyeongjun Lim , JiYeon Park , Taemin Kim
Abstract: A display apparatus is provided. The display apparatus includes a substrate including a plurality of pixels configured to emit light, wherein the amount of emitted light is at a maximum when emitted at an angle of more than 0 degrees. The display apparatus further includes an encapsulation layer covering the plurality of pixels and including a plurality of light collecting structures each having a three-dimensional quadrangular horn shape or a three-dimensional quadrangular truncated-horn shape.
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公开(公告)号：US11088339B2
公开(公告)日：2021-08-10
申请号：US16519403
申请日：2019-07-23
Applicant: LG Display Co., Ltd.
Inventor： Ho-Jin Kim , SeungMin Baik , JiYeon Park , Sul Lee , Sukhyeun Jang
Abstract: An electroluminescent display device includes: an electroluminescent display device, including: a substrate including: a first subpixel, and a second subpixel, a respective first electrode in each of the first subpixel and the second subpixel on the substrate, a trench in a boundary between the first subpixel and the second subpixel on the substrate, an emission layer on the first electrode, and in the first subpixel, the second subpixel, and the boundary between the first subpixel and the second subpixel, at least some of the emission layer being noncontiguous in the trench, a pore below the emission layer inside the trench, an upper end of the pore being relatively higher than at least some of the emission layer, and a second electrode on the emission layer.
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公开(公告)号：US10481716B2
公开(公告)日：2019-11-19
申请号：US15812304
申请日：2017-11-14
Applicant: LG DISPLAY CO., LTD.
Inventor： CheolSe Kim , Jinseong Kim , JiYeon Park
Abstract: The present embodiments relate to an all-in-one switch device as well as a touch display apparatus and a display panel including such an all-in-one switch device. The all-in-one switch device includes a switching transistor electrically connected between a pixel electrode and a data line, and a sensor pattern connected between a first electrode and a second electrode of the switching transistor. One device is enough to provide both a switching function for display driving and a sensor function for sensing a touch position and/or a fingerprint, a separate touch sensor having a large size is unnecessary, and it is possible to precisely sense a touch position and/or a fingerprint without being affected by parasitic capacitance, even in a situation where a system has a structure or a circuit in which touch sensing based on capacitance is impossible.
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