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公开(公告)号：US20230018406A1
公开(公告)日：2023-01-19
申请号：US17809785
申请日：2022-06-29
Applicant: Apple Inc.
Inventor： Dmitry S. Sizov , Ion Bita , Jean-Jacques P. Drolet , John T. Leonard , Jonathan S. Steckel , Nathaniel T. Lawrence , Xiaobin Xin , Ranojoy Bose
IPC: H01L25/075 , H01L23/00 , H01L25/16 , H01L25/18 , H01L33/60
Abstract: Light emitting structures and methods of fabrication are described. In an embodiment, LED coupons are transferred to a carrier substrate and then patterned to LED mesa structures. Patterning may be performed on heterogeneous groups of LED coupons with a common mask set. The LED mesa structure are then transferred in bulk to a display substrate. In an embodiment, a light emitting structure includes an arrangement of LEDs with different thickness, and corresponding bottom contacts with different thicknesses bonded to a display substrate.
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公开(公告)号：US20220278255A1
公开(公告)日：2022-09-01
申请号：US17648101
申请日：2022-01-14
Applicant: Apple Inc.
Inventor： Yuewei Zhang , Fang Ou , Lei Zhang , Lina He , Paul S. Drzaic , Xiaobin Xin
Abstract: Display structures and methods of operation with micro light emitting diode (LED) sidewall gating are described. In an embodiment, a display structure includes a vertically oriented micro LED mounted on a display substrate, in which the micro LED includes a p-n diode with top and bottom electrode sides, and a sidewall gate electrode spanning a sidewall of the p-n diode where the active layer is included. In various embodiments, a bias may be applied to the sidewall gate electrode while driving the micro LED to deplete a minority carrier concentration from the sidewall of the p-n diode.
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公开(公告)号：US20240347516A1
公开(公告)日：2024-10-17
申请号：US18611108
申请日：2024-03-20
Applicant: Apple Inc.
Inventor： Dmitry S. Sizov , Ion Bita , Jean-Jacques P. Drolet , John T. Leonard , Jonathan S. Steckel , Nathaniel T. Lawrence , Xiaobin Xin , Ranojoy Bose
CPC classification number: H01L25/0753 , H01L24/08 , H01L24/32 , H01L24/73 , H01L25/167 , H01L25/18 , H01L33/60 , H01L33/0008 , H01L33/0093 , H01L33/38 , H01L2224/08225 , H01L2224/32225
Abstract: Light emitting structures and methods of fabrication are described. In an embodiment, LED coupons are transferred to a carrier substrate and then patterned to LED mesa structures. Patterning may be performed on heterogeneous groups of LED coupons with a common mask set. The LED mesa structure are then transferred in bulk to a display substrate. In an embodiment, a light emitting structure includes an arrangement of LEDs with different thickness, and corresponding bottom contacts with different thicknesses bonded to a display substrate.
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公开(公告)号：US20240250217A1
公开(公告)日：2024-07-25
申请号：US18408137
申请日：2024-01-09
Applicant: Apple Inc.
Inventor： Xiaobin Xin , Dmitry S Sizov , Chi-Kang Li , Steve M Ting , Fang Ou , David P Bour
Abstract: Light emitting diodes with regrown semiconductor layers and methods of manufacture are described. In an embodiment, a light emitting diode includes a base structure including a first cladding layer and a pillar structure protruding from the base layer. The pillar structure includes a mesa structure and a second cladding layer that includes a plug portion that is laterally adjacent to a plurality of quantum well layers of the mesa structure.
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公开(公告)号：US10418519B2
公开(公告)日：2019-09-17
申请号：US15777169
申请日：2016-12-14
Applicant: Apple Inc.
Inventor： David P. Bour , Dmitry S. Sizov , Daniel A. Haeger , Xiaobin Xin
Abstract: LEDs and methods of forming LEDs with various structural configurations to mitigate non-radiative recombination at the LED sidewalls are described. The various configurations described include combinations of LED sidewall surface diffusion with pillar structure, modulated doping profiles to form an n-p superlattice along the LED sidewalls, and selectively etched cladding layers to create entry points for shallow doping or regrowth layers.
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Patent Agency Ranking
公开(公告)号：US11967586B2
公开(公告)日：2024-04-23
申请号：US17809785
申请日：2022-06-29
Applicant: Apple Inc.
Inventor： Dmitry S. Sizov , Ion Bita , Jean-Jacques P. Drolet , John T. Leonard , Jonathan S. Steckel , Nathaniel T. Lawrence , Xiaobin Xin , Ranojoy Bose
CPC classification number: H01L25/0753 , H01L24/08 , H01L24/32 , H01L24/73 , H01L25/167 , H01L25/18 , H01L33/60 , H01L33/0008 , H01L33/0093 , H01L33/38 , H01L2224/08225 , H01L2224/32225
Abstract: Light emitting structures and methods of fabrication are described. In an embodiment, LED coupons are transferred to a carrier substrate and then patterned to LED mesa structures. Patterning may be performed on heterogeneous groups of LED coupons with a common mask set. The LED mesa structure are then transferred in bulk to a display substrate. In an embodiment, a light emitting structure includes an arrangement of LEDs with different thickness, and corresponding bottom contacts with different thicknesses bonded to a display substrate.
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公开(公告)号：US20200052158A1
公开(公告)日：2020-02-13
申请号：US16547166
申请日：2019-08-21
Applicant: Apple Inc.
Inventor： David P. Bour , Dmitry S. Sizov , Daniel A. Haeger , Xiaobin Xin
Abstract: LEDs and methods of forming LEDs with various structural configurations to mitigate non-radiative recombination at the LED sidewalls are described. The various configurations described include combinations of LED sidewall surface diffusion with pillar structure, modulated doping profiles to form an n-p superlattice along the LED sidewalls, and selectively etched cladding layers to create entry points for shallow doping or regrowth layers.
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公开(公告)号：US20180292713A1
公开(公告)日：2018-10-11
申请号：US15693305
申请日：2017-08-31
Applicant: Apple Inc.
Inventor： Jean-Jacques P. Drolet , Yuan Chen , Jonathan S. Steckel , Ion Bita , Dmitry S. Sizov , Chia Hsuan Tai , John T. Leonard , Lai Wang , Ove Lyngnes , Xiaobin Xin , Zhibing Ge
IPC: G02F1/1335 , G02F1/1343
Abstract: A display may have display layers that form an array of pixels. The display layers may include a first layer that includes a light-blocking matrix and a second layer that overlaps the first layer. The first layer may include quantum dot elements formed in openings in the light-blocking matrix. The light-blocking matrix may be formed from a reflective material such as metal. The second layer may include color filter elements that overlap corresponding quantum dot elements in the first layer. Substrate layers may be used to support the first and second layers and to support thin-film transistor circuitry that is used in controlling light transmission through the array of pixels. The display layers may include a liquid crystal layer, polarizer layers, filter layers for reflecting red and green light and/or other light to enhance light recycling, and layers with angularly dependent transmission characteristics.
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公开(公告)号：US12153233B1
公开(公告)日：2024-11-26
申请号：US17465458
申请日：2021-09-02
Applicant: Apple Inc.
Inventor： Xiaobin Xin , Dmitry S. Sizov , Fang Ou , Lei Zhang , Lina He , Nathaniel T. Lawrence , Paul S. Drzaic , Ranojoy Bose , Yuewei Zhang
IPC: G02B5/18 , H01L27/15 , H01L31/0232 , H01L33/58
Abstract: Optical components such as components that emit light and components that detect light may be provided. Optical components that emit light may include displays having arrays of display pixels with respective light-emitting devices such as crystalline semiconductor light-emitting diodes. Optical components that detect light may include image sensors or other components with arrays of photodetectors. The light-emitting devices and photodetectors in the optical components may be overlapped by metalenses such as multielement metalenses. A multielement metalens may have a first metalens element formed from a first layer of nanostructures arranged and an overlapping second metalens element formed from a second layer of nanostructures. Light sources may be provided on a semiconductor and metalens nanostructures may be formed on an opposing surface of the semiconductor.
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公开(公告)号：US20230324689A1
公开(公告)日：2023-10-12
申请号：US18173579
申请日：2023-02-23
Applicant: Apple Inc.
Inventor： Dmitry S. Sizov , Xiaobin Xin , Hyungryul Choi , Vikrant Bhakta , Fang Ou , Lina He , Sergei Y. Yakovenko , Ranojoy Bose , Paul S. Drzaic
CPC classification number: G02B27/0172 , G02B6/0031 , G02B6/0073 , G02B2027/0112 , G02B2027/0174
Abstract: An electronic device may provide image light to an eye box. The display may include a light source panel that emits the image light. A waveguide may direct the image light towards the eye box. An input coupler may couple the image light into the waveguide and an output coupler may couple the image light out of the waveguide. A color filter may be optically interposed between the light source panel and the output coupler. The color filter may filter the image light using a steep cutoff characteristic. The color filter may allow the image light to exhibit a desired color point while also allowing the light source panel to use light emitters having peak emission wavelengths that maximize the efficiency of the light emitters and thus the power efficiency of the device.
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