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公开(公告)号：US20220254759A1
公开(公告)日：2022-08-11
申请号：US17576300
申请日：2022-01-14
申请人： Raxium, Inc.
发明人： Gang He , Li Yan , Michael Joseph Cich
IPC分类号： H01L25/075 , H01L33/32 , H01L33/50 , H01L33/00 , H01L33/14
摘要： A light emission system includes an array of micro light-emitting diodes (microLED)s. The array of microLEDs includes a semiconductor substrate, a prep layer formed on at least a portion of the semiconductor substrate, and an active region formed on the prep layer. The array of microLEDs also include a plurality of thick sub-structures forming an array on the active region, and a plurality of thin sub-structures formed on the active region, each one of the thin sub-structures being located between each adjacent pair of thick substructures. Each one of the thick sub-structures defines a shape and size of a corresponding one of the microLEDs. Each one of the thin sub-structures is configured for preventing mobility of free electron carriers therethrough to electrically isolate each one of the thick sub-structures from every other one of the thick sub-structures. Further, the plurality of microLEDs share the active region.
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公开(公告)号：US20210313298A1
公开(公告)日：2021-10-07
申请号：US17223299
申请日：2021-04-06
申请人： Raxium, Inc.
发明人： Melissa Archer , Gang He
IPC分类号： H01L25/065 , H01L25/16 , G02B26/08
摘要： A backplane for controlling a display is disclosed. The backplane includes a plurality of tiles formed into an array. Each of the plurality of tiles includes a plurality of complementary metal-oxide-semiconductor backplane dies. Edges of the backplane dies that form a perimeter of the array include electrical connections that direct electrical signals to at least one of the CMOS backplane dies. A display assembly is also disclosed wherein the display assembly includes a backplane having an array of tiles. Each tile includes a plurality of electrically coupled CMOS backplane dies, where edges of the tiles that form an outer perimeter of the array include electrical connections directing electrical signals to one or more of the plurality of CMOS backplane dies. The display assembly further includes at least one light emitting diode array electrically coupled with at least one tile.
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公开(公告)号：US20220302101A1
公开(公告)日：2022-09-22
申请号：US17695563
申请日：2022-03-15
申请人： Raxium, Inc.
发明人： Gang He
IPC分类号： H01L25/00 , H01L25/18 , H01L25/065
摘要： A method for transferring one or more clusters of micro-LEDs to a display panel includes fabricating or loading a plurality of micro-LED clusters comprising two or more micro-LEDs onto a substrate, and positioning the substrate in a first position. At least a first micro-LED cluster is aligned with at least a first electrical connector on a display panel. The method also includes lowering the substrate toward the display panel such that the first micro-LED cluster contacts the first electrical connector, and releasing the first micro-LED cluster from the substrate.
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公开(公告)号：US11100844B2
公开(公告)日：2021-08-24
申请号：US16391850
申请日：2019-04-23
申请人： Raxium, Inc.
发明人： Gang He , Richard Peter Schneider, Jr. , Andrew Victor Jones , James Richard Dodd, Jr. , Joseph Hsiao-Tien Han
摘要： The disclosure describes various aspects of an architecture for light emitting elements in a light field display. In an aspect, a light field display can include multiple picture elements (e.g., super-raxels), where each of the picture elements has a respective light steering optical element and includes an array of light emitting elements (e.g., sub-raxels) that area monolithically integrated on a same semiconductor substrate. The light steering optical element can include at least one microlens, at least one grating, or a combination of both. The array of light emitting elements includes light emitting elements that produce at least three different colors of light. Separate groups of light emitting elements can be configured and a directional resolution of the light field display can be based on the number of groups. The light field display also includes electronic means configured to individually drive the light emitting elements in each of the picture elements.
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公开(公告)号：US10999573B2
公开(公告)日：2021-05-04
申请号：US16391987
申请日：2019-04-23
申请人： Raxium, Inc.
发明人： Gang He , Richard Peter Schneider, Jr. , Andrew Victor Jones , James Richard Dodd, Jr. , Joseph Hsiao-Tien Han
IPC分类号： G09G3/20 , G09G3/32 , H04N13/356 , H01L27/15 , H01L33/06 , H01L33/32 , H01L33/30 , H04N13/398 , G02B30/26
摘要： The disclosure describes various aspects of a partial light field display architecture. In an aspect, a light field display includes multiple picture elements (e.g., super-raxels), where each picture element includes a first portion having a first set of light emitting elements, where the first portion is configured to produce light outputs that contribute to at least one a two-dimensional (2D) view. Each picture element also includes a second portion including a second set of light emitting elements (e.g., sub-raxels) configured to produce light outputs (e.g., ray elements) that contribute to at least one three-dimensional (3D) view. The light field display also includes electronic means configured to drive the first set of light emitting elements and the second set of light emitting elements in each picture element. The light field display can also dynamically identify the first portion and the second portion and allocate light emitting elements accordingly.
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公开(公告)号：US20220352417A1
公开(公告)日：2022-11-03
申请号：US17732290
申请日：2022-04-28
申请人： Raxium, Inc.
摘要： An emitter system assembly includes an emitter providing a light emission, a cavity at least partially surrounding the emitter, an aperture configured for transmitting therethrough at least a portion of the light emission from the emitter, and a lenslet in optical communication with the aperture. The cavity includes reflectors for reflecting the light emission within the cavity and toward the aperture. Further, the cavity, the aperture, and the lenslet are configured to cooperate to produce the light output having optical properties suitable for coupling into a projector. In a further aspect, the optical properties include at least one of a predetermined output direction and a solid angle. In another aspect, the emitter system includes a low-refractive index material, anti-reflective layer, and/or light containment structures around the emitter.
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公开(公告)号：US20220201275A1
公开(公告)日：2022-06-23
申请号：US17558415
申请日：2021-12-21
申请人： Raxium, Inc.
IPC分类号： H04N13/365 , H04N13/383 , H04N13/305 , G02B30/27
摘要： A display device based on micro light emitting diodes (microLEDs) includes a plurality of chiplets. Each chiplet includes one or more raxels, each raxel including a plurality of microLEDs supported on a substrate. The chiplet also includes a micro integrated circuit (microIC) electronically connected with the one or more raxels. MicroIC includes a plurality of interconnects supported on a backplane such that, when connected with the raxel, microIC may be used to electrically drive each one of the MicroLED of the raxel. In an embodiment, a plurality of chiplets are disposed on a display substrate to for an auto-view horizontal parallax only 3D display.
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公开(公告)号：US11368671B2
公开(公告)日：2022-06-21
申请号：US17306914
申请日：2021-05-03
申请人： Raxium, Inc.
发明人： Gang He , Richard Peter Schneider, Jr. , Andrew Victor Jones , James Richard Dodd, Jr. , Joseph Hsiao-Tien Han
IPC分类号： G09G3/20 , G09G3/32 , H04N13/356 , H01L27/15 , H01L33/06 , H01L33/32 , H04N13/398 , H01L33/30 , G02B30/26
摘要： The disclosure describes various aspects of a partial light field display architecture. In an aspect, a light field display includes multiple picture elements (e.g., super-raxels), where each picture element includes a first portion having a first set of light emitting elements, where the first portion is configured to produce light outputs that contribute to at least one a two-dimensional (2D) view. Each picture element also includes a second portion including a second set of light emitting elements (e.g., sub-raxels) configured to produce light outputs (e.g., ray elements) that contribute to at least one three-dimensional (3D) view. The light field display also includes electronic means configured to drive the first set of light emitting elements and the second set of light emitting elements in each picture element. The light field display can also dynamically identify the first portion and the second portion and allocate light emitting elements accordingly.
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