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公开(公告)号：US11860386B2
公开(公告)日：2024-01-02
申请号：US17785827
申请日：2020-12-21
申请人： Lumileds LLC
摘要： An apparatus and method for displaying an image are disclosed. The apparatus includes microLED unit cells including sets of microLEDs each emitting light and at least one lens to control an emission angle and emission profile of the light emitted by the microLED unit cells. A display controller controls an intensity distribution of the microLED unit cells in accordance with first and second video data signals such that a first portion of the emitted light is emitted at a first emission angle with a first emission profile at a first observation angle relative to a display and a second portion of the emitted light is emitted at a second emission angle with a second emission profile at a second observation angle relative to the display. The first and second light portions form unrelated images.
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公开(公告)号：US12106705B2
公开(公告)日：2024-10-01
申请号：US18210073
申请日：2023-06-14
申请人： Lumileds LLC
IPC分类号： G09G3/32 , B60K35/00 , B60K35/22 , G06F3/01 , G06F3/041 , G06F3/14 , G09G3/00 , G09G3/20 , H01L25/075 , H01L25/16 , H01L33/52 , H04N23/53
CPC分类号： G09G3/32 , B60K35/00 , G06F3/011 , G06F3/0412 , G06F3/1446 , G09G3/035 , G09G3/2003 , H01L25/0753 , H01L25/167 , H01L33/52 , H04N23/53 , B60K35/22 , B60K2360/332 , G09G2300/02 , G09G2300/026 , G09G2300/0426 , G09G2300/0491 , G09G2320/0233 , G09G2320/028 , G09G2320/0626 , G09G2320/066 , G09G2320/068 , G09G2354/00 , G09G2370/06 , G09G2380/02 , G09G2380/10
摘要： A display that contains a sparse array of light-emitting diodes (LEDs), including a related system and method of fabrication are disclosed. The display includes at least one panel disposed in or on a transparent material to provide a display on one or both sides of the material. Each tile has a transparent flexible substrate, a sparse array of LEDs disposed on the transparent flexible substrate, a rigid substrate adhered to the transparent flexible substrate via an adhesive layer in which the sparse array of LEDs is encapsulated, and a driver disposed on an edge of the tile and configured to drive the LEDs. The LEDs are sparse enough to enable information to be displayed through the transparent material while still enabling a viewer to see through the transparent material.
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公开(公告)号：US20230411579A1
公开(公告)日：2023-12-21
申请号：US18207917
申请日：2023-06-09
申请人： Lumileds LLC
CPC分类号： H01L33/62 , H01L25/167
摘要： Display devices comprise an optionally transparent display area that extends to one or more physical boundaries (edges) of the device. The display area may be located on a front surface of the display device, and the physical boundaries of the device to which the display area extends may be formed by physical sides of the device that intersect with the front surface to define part of a perimeter of the front surface. The display area may comprise a microLED array that extends with the display area to edges of the device. Power and/or control electronics for the display device may be located adjacent the display area but away from the edges of the display device to which the display area extends. Two or more such display devices can be arranged (i.e., tiled) with their display areas adjacent, in contact, and facing the same direction to form an extended continuous microLED display area spanning the display areas of the two or more display devices.
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公开(公告)号：US20230411572A1
公开(公告)日：2023-12-21
申请号：US18206309
申请日：2023-06-06
申请人： Lumileds LLC
IPC分类号： H01L33/60 , H01L25/075 , H01L33/54
CPC分类号： H01L33/60 , H01L25/0753 , H01L33/54 , H01L2933/005 , H01L2933/0058
摘要： A light source can include a transparent flexible substrate. A sparse array of light-emitting diodes (LEDs) can be disposed on the transparent flexible substrate. A rigid substrate can be adhered to the transparent flexible substrate such that the sparse array of LEDs is located between the rigid substrate and the transparent flexible substrate. The rigid substrate can be adhered to the transparent flexible substrate with an adhesive layer. The sparse array of LEDs can be encapsulated in an adhesive of the adhesive layer. The adhesive can have a refractive index that is between a refractive index of the transparent flexible substrate and a refractive index of the rigid substrate, inclusive. The sparse array of LEDs can have a light-emitting area that is less than or equal to a specified fraction of a surface area of the sparse array, such as 5 percent or 1 percent.
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公开(公告)号：US20230013035A1
公开(公告)日：2023-01-19
申请号：US17785827
申请日：2020-12-21
申请人： Lumileds LLC
摘要： An apparatus and method for displaying an image are disclosed. The apparatus includes microLED unit cells including sets of microLEDs each emitting light and at least one lens to control an emission angle and emission profile of the light emitted by the microLED unit cells. A display controller controls an intensity distribution of the microLED unit cells in accordance with first and second video data signals such that a first portion of the emitted light is emitted at a first emission angle with a first emission profile at a first observation angle relative to a display and a second portion of the emitted light is emitted at a second emission angle with a second emission profile at a second observation angle relative to the display. The first and second light portions form unrelated images.
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公开(公告)号：US20230258317A1
公开(公告)日：2023-08-17
申请号：US18140382
申请日：2023-04-27
申请人： Lumileds LLC
CPC分类号： F21V14/06 , F21V23/003 , F21K9/61 , F21Y2115/10
摘要： An illumination system can produce a dynamically variable illumination pattern. The illumination system can include a light guide. The illumination system can include projection optics, which can contribute to the illumination pattern at relatively low beam angles (i.e., beam angles formed with respect to a surface normal of the light guide). The projection optics can include individually addressable light-producing elements that can direct light through one or more focusing elements. A controller can control which of the light-producing elements are electrically powered and can therefore control the illumination pattern contribution from the projection optics. The illumination system can also include scattering optics, which can contribute to the illumination pattern at relatively high beam angles. The scattering optics can direct light out of the light guide over a relatively large surface area, which can help reduce glare when the light guide is viewed directly.
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公开(公告)号：US20220003385A1
公开(公告)日：2022-01-06
申请号：US17020390
申请日：2020-09-14
申请人： Lumileds LLC
IPC分类号： F21V14/06 , F21K9/61 , F21V23/00 , F21Y115/10
摘要： An illumination system can produce a dynamically variable illumination pattern. The illumination system can include a light guide. The illumination system can include projection optics, which can contribute to the illumination pattern at relatively low beam angles (i.e., beam angles formed with respect to a surface normal of the light guide). The projection optics can include individually addressable light-producing elements that can direct light through one or more focusing elements. A controller can control which of the light-producing elements are electrically powered and can therefore control the illumination pattern contribution from the projection optics. The illumination system can also include scattering optics, which can contribute to the illumination pattern at relatively high beam angles. The scattering optics can direct light out of the light guide over a relatively large surface area, which can help reduce glare when the light guide is viewed directly.
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公开(公告)号：US11946621B2
公开(公告)日：2024-04-02
申请号：US18140382
申请日：2023-04-27
申请人： Lumileds LLC
IPC分类号： F21V14/06 , F21K9/61 , F21V23/00 , F21Y115/10
CPC分类号： F21V14/06 , F21K9/61 , F21V23/003 , F21Y2115/10
摘要： An illumination system can produce a dynamically variable illumination pattern. The illumination system can include a light guide. The illumination system can include projection optics, which can contribute to the illumination pattern at relatively low beam angles (i.e., beam angles formed with respect to a surface normal of the light guide). The projection optics can include individually addressable light-producing elements that can direct light through one or more focusing elements. A controller can control which of the light-producing elements are electrically powered and can therefore control the illumination pattern contribution from the projection optics. The illumination system can also include scattering optics, which can contribute to the illumination pattern at relatively high beam angles. The scattering optics can direct light out of the light guide over a relatively large surface area, which can help reduce glare when the light guide is viewed directly.
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公开(公告)号：US11668452B2
公开(公告)日：2023-06-06
申请号：US17582649
申请日：2022-01-24
申请人： Lumileds LLC
IPC分类号： F21V14/06 , F21V23/00 , F21K9/61 , F21Y115/10
CPC分类号： F21V14/06 , F21K9/61 , F21V23/003 , F21Y2115/10
摘要： An illumination system can produce a dynamically variable illumination pattern. The illumination system can include a light guide. The illumination system can include projection optics, which can contribute to the illumination pattern at relatively low beam angles (i.e., beam angles formed with respect to a surface normal of the light guide). The projection optics can include individually addressable light-producing elements that can direct light through one or more focusing elements. A controller can control which of the light-producing elements are electrically powered and can therefore control the illumination pattern contribution from the projection optics. The illumination system can also include scattering optics, which can contribute to the illumination pattern at relatively high beam angles. The scattering optics can direct light out of the light guide over a relatively large surface area, which can help reduce glare when the light guide is viewed directly.
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10.发明授权公开(公告)号：US11621377B2
公开(公告)日：2023-04-04
申请号：US17576757
申请日：2022-01-14
申请人： Lumileds LLC
发明人： Marcus Jozef Henricus Kessels , Hans-Helmut Bechtel , Johannes Willem Herman Sillevis Smitt , Wouter Soer
摘要： A light emitting device comprises a first group of one or more LEDs each configured to emit light having a blue color point in the 1931 CIE x,y Chromaticity Diagram, a second group of one or more LEDs each configured to emit light having a cyan or yellow color point in the 1931 CIE x,y Chromaticity Diagram, and a third group of one or more LEDs each configured to emit light having a red color point in the 1931 CIE x,y Chromaticity Diagram.
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