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公开(公告)号：US20250098370A1
公开(公告)日：2025-03-20
申请号：US18788349
申请日：2024-07-30
Applicant: LG DISPLAY CO., LTD.
Inventor： YoungIn JANG , KwangSu LIM , Junhyeok LEE , HyunGon KIM
Abstract: A display device includes a substrate on which a plurality of subpixels is defined, and a plurality of light-emitting elements respectively disposed in the plurality of subpixels. Each of the plurality of light-emitting elements includes a first semiconductor layer, a light-emitting layer on the first semiconductor layer, and a second semiconductor layer on the light-emitting layer. The first semiconductor layer includes a first part having a flat top surface, and a second part protruding upward from the first part and being in direct contact with a bottom surface of the light-emitting layer. An area of a top surface of the second semiconductor layer is larger than an area of a bottom surface of the second semiconductor layer.
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公开(公告)号：US20240260385A1
公开(公告)日：2024-08-01
申请号：US18412402
申请日：2024-01-12
Applicant: LG DISPLAY CO., LTD.
Inventor： YoungIn JANG , KwangSu LIM , Soyoung LEE , HyunGon KIM
IPC: H10K59/70 , H10K59/122
CPC classification number: H10K59/70 , H10K59/122
Abstract: A display apparatus includes a substrate including a first display area and a second display area surrounding the first display area, a plurality of first sub-pixels disposed at the first display area, a plurality of second sub-pixels disposed at the second display area, a first light emitting element disposed at each of the plurality of first sub-pixels, and a second light emitting element disposed at each of the plurality of second sub-pixels. The first light emitting element includes an organic light emitting diode and the second light emitting element includes an inorganic light emitting diode.
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公开(公告)号：US20240047616A1
公开(公告)日：2024-02-08
申请号：US18224782
申请日：2023-07-21
Applicant: LG Display Co., Ltd.
Inventor： YoungIn JANG , Soyoung LEE , HyunGon KIM
IPC: H01L33/38 , H01L33/62 , H01L25/075
CPC classification number: H01L33/382 , H01L33/62 , H01L25/0753 , H01L2933/0066 , H01L2933/0016
Abstract: According to an aspect of the present disclosure, a display device includes a substrate in which a plurality of sub-pixels is defined, a light emitting element disposed on each of the plurality of sub-pixels, and a first connection electrode surrounding a first semiconductor layer disposed at a lower part of the light emitting element, a second connection electrode in contact with a top surface of the light emitting element, a first planarization layer disposed between the first connection electrode and the second connection electrode and having a smaller thickness than the first semiconductor layer of the light emitting element, and a second planarization layer disposed between the first planarization layer and the second connection electrode.
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公开(公告)号：US20200211456A1
公开(公告)日：2020-07-02
申请号：US16712917
申请日：2019-12-12
Applicant: LG DISPLAY CO., LTD.
Inventor： HyunGon KIM , DukKeun YOO
IPC: G09G3/3225 , G09G3/3275 , G09G3/36 , G06F3/041
Abstract: A driving circuit, a display panel, and a display device are provided. The display panel comprises a plurality of common electrodes; a plurality of phototransistors, two or more phototransistors among the plurality of phototransistors being disposed in an area corresponding to each of the plurality of common electrodes; a plurality of photo-control lines electrically connected to a gate electrode of at least one phototransistor among the plurality of phototransistors; a plurality of photo-driving lines electrically connected to a first electrode of at least one phototransistor among the plurality of phototransistors, and a plurality of read-out lines, each of the plurality of read-out lines being electrically connected to a single common electrode among the plurality of common electrodes, and electrically connected to second electrodes of all of the phototransistors disposed in the area corresponding to the single common electrode to which each of the plurality of read-out lines are electrically connected. According to the present disclosure, an increase in non-open areas is minimized and the magnitude of the output signal of the phototransistor detected through the read-out line is increased, thereby improving photosensing performance.
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公开(公告)号：US20250062164A1
公开(公告)日：2025-02-20
申请号：US18936369
申请日：2024-11-04
Applicant: LG Display Co., Ltd.
Inventor： Seeun KIM , JongSung KIM , HyunGon KIM , YoungIn JANG
Abstract: A display device can include a substrate including a plurality of pixels, a plurality of light emitting diodes disposed in each of the plurality of pixels, a color conversion member disposed over at least two light emitting diodes among the plurality of light emitting diodes in one pixel, and a light shielding pattern disposed over at least one light emitting diode among the plurality of light emitting diodes in the one pixel for forming a black sub pixel that does not emit light outside of the display device. Also, the color conversion member includes a color conversion layer and a color filter disposed on the color conversion layer.
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Patent Agency Ranking
公开(公告)号：US20240145656A1
公开(公告)日：2024-05-02
申请号：US18386363
申请日：2023-11-02
Applicant: LG Display Co., Ltd.
Inventor： YoungIn JANG , Soyoung LEE , HyunGon KIM
CPC classification number: H01L33/62 , H01L25/167 , H01L33/60 , H01L2933/0066
Abstract: According to an aspect of the present disclosure, a display device includes: a substrate on which a plurality of sub-pixels is defined; a light-emitting element disposed on each of the plurality of sub-pixels and having an inversely tapered shape; a first connection electrode configured to surround a side surface of a lower portion of the light-emitting element; a second connection electrode configured to cover an upper portion of the light-emitting element; and a first planarization layer disposed between the first connection electrode and the second connection electrode. Therefore, the first connection electrode, which surrounds a lower portion of the light-emitting element, may be formed to be spaced apart from an upper portion of the light-emitting element by using the light-emitting element having an inversely tapered shape.
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公开(公告)号：US20240222200A1
公开(公告)日：2024-07-04
申请号：US18202807
申请日：2023-05-26
Applicant: LG Display Co., Ltd.
Inventor： Seeun KIM , JongSung KIM , HyunGon KIM , YoungIn JANG
CPC classification number: H01L22/20 , G09G3/2096 , G09G3/32 , H01L24/24 , H01L25/167 , H01L33/507 , G09G2300/0452 , G09G2320/0666 , H01L2224/24051 , H01L2224/24147 , H01L2933/0041
Abstract: A display device can include a substrate including a plurality of pixels; a plurality of light emitting diodes disposed in each of the plurality of pixels; a color conversion member disposed over at least two light emitting diodes among the plurality of light emitting diodes in one pixel among the plurality of pixels; and a light shielding pattern disposed over at least one light emitting diode among the plurality of light emitting diodes in the one pixel for forming a black sub pixel that does not emit light outside of the display device. Also, each of the plurality of pixels includes a first sub pixel, a second sub pixel, a third sub pixel, and one or more black sub pixels.
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公开(公告)号：US20240178359A1
公开(公告)日：2024-05-30
申请号：US18139118
申请日：2023-04-25
Applicant: LG Display Co., Ltd.
Inventor： YoungIn JANG , Soyoung LEE , HyunGon KIM
CPC classification number: H01L33/62 , G09F9/3026 , G09F9/33 , H01L25/0753 , H01L25/167 , H01L27/124 , H01L33/32 , H01L33/382
Abstract: A display device can includes a substrate in which a plurality of sub pixels are defined; a light emitting diode disposed in a sub pixel among the plurality of sub pixels on the substrate; and a first transistor which is disposed in the sub pixel and configured to supply a driving current to the light emitting diode. Also, the first transistor can be a high electron mobility transistor (HEMT). Accordingly, the first transistor can have a high electron mobility to supply a high current to the light emitting diode and display a high luminous image.
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公开(公告)号：US20240079414A1
公开(公告)日：2024-03-07
申请号：US18240039
申请日：2023-08-30
Applicant: LG Display Co., Ltd.
Inventor： Daeyoung SEO , Hun JANG , HyunGon KIM
CPC classification number: H01L27/124 , G06F3/0412 , G06F3/04166 , H01L25/167
Abstract: A display device according to an example includes a plurality of sub pixels disposed on a substrate, and a plurality of touch units disposed on the substrate. Each sub pixel can include a driving transistor, a light emitting diode, and a pixel electrode connecting the driving transistor and the light emitting diode. Each touch unit can include a touch sensing transistor and a touch electrode connected to the touch sensing transistor, where the pixel electrode and the touch electrode are disposed on the same layer. Accordingly, the pixel electrode and the touch electrode are disposed on the substrate to sense the touch by a self-capacitance manner.
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公开(公告)号：US20200210044A1
公开(公告)日：2020-07-02
申请号：US16711235
申请日：2019-12-11
Applicant: LG Display Co., Ltd.
Inventor： HyunGon KIM , DukKeun YOO
Abstract: A display panel includes common electrodes in an active area and a first driving circuit on one side of the active area and a second driving circuit on the other side of the active area. First read-out lines are electrically connected to the common electrodes, respectively, and to the first driving circuit. Second read-out lines are electrically connected to the second driving circuit, and to the first read-out lines, respectively. An output signal of phototransistors may be detected using read-out lines connected to a common electrode serving as a touch sensor, such that touch sensing and photosensing can be performed using the shared read-out line. No disconnection areas are provided between the read-out lines driven by the different driving circuits, or the disconnection areas are distributed. Abnormalities in image quality due to the disconnection areas are prevented, and a sensing function using the shared read-out lines is provided.
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