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21. 发明授权

US11830857B2 Light-emitting device array with individual cells 有权
公开(公告)号：US11830857B2
公开(公告)日：2023-11-28
申请号：US16997691
申请日：2020-08-19
申请人： BRIDGELUX, INC.
发明人： Rene Peter Helbing , Tao Xu
IPC分类号： H01L25/075 , H01L33/50 , H01L33/56 , H01L33/42 , H01L33/40
CPC分类号： H01L25/0753 , H01L33/504 , H01L33/507 , H01L33/56 , H01L33/40 , H01L33/42 , H01L33/50 , H01L33/502 , H01L2224/32 , H01L2924/0002 , H01L2933/005 , H01L2933/0025 , H01L2933/0041 , H01L2933/0058 , H01L2924/0002 , H01L2924/00
摘要： A light-emitting device and a method for manufacturing the light-emitting device is disclosed. Such a light-emitting device comprises a substrate, a plurality of cells disposed on the substrate, and a plurality of semiconductor dice, wherein each of the plurality of cells accommodates at least one of the plurality of dice. Each of the plurality of cells may be filled with an encapsulant, phosphor or a mixture of an encapsulant with phosphor to control light characteristics of the light-emitting device. In an alternative aspect, cells may be filled with an encapsulant, and comprise a transparent cover coated with or filled with phosphors to control light characteristics of the light-emitting device.

22. 发明授权

US11705543B2 White light emitting device with dimming control 有权
公开(公告)号：US11705543B2
公开(公告)日：2023-07-18
申请号：US17412258
申请日：2021-08-26
申请人： Bridgelux, Inc.
发明人： Tao Xu , Aaron Merrill , Yi-Qun Li
IPC分类号： H01L25/075 , H01L33/50 , H01L33/58
CPC分类号： H01L33/504 , H01L25/0753 , H01L33/58
摘要： A white light emitting device may include a substrate, first LEDs disposed on the substrate, a first photoluminescence material disposed over the first LEDs, second LEDs disposed on the substrate, where the first LEDs and the second LEDs emit blue light at substantially the same wavelength, a second photoluminescence material disposed over the second LEDs, the second photoluminescence material having a composition different from the first photoluminescence material, where an emission product of the white light emitting device is a combination of light emitted from (i) a combination of the first LEDs and the first photoluminescence material, and (ii) a combination of the second LEDs and the second photoluminescence material, and a dimming control connected to the first LEDs and to the second LEDs; where the dimming control is actuable to modify the emission product.

23. 发明授权

US11164999B2 White light emitting device and diffusing layer 有权
公开(公告)号：US11164999B2
公开(公告)日：2021-11-02
申请号：US16293176
申请日：2019-03-05
申请人： Bridgelux, Inc.
发明人： Tao Xu , Aaron Merrill , Yi-Qun Li
IPC分类号： H01L33/00 , H01L33/50 , H01L25/075 , H01L33/58
摘要： There is provided a white light emitting device comprising a first LED and a second LED disposed on a substrate, a first photoluminescence material layer disposed over at least said first LED, a second photoluminescence material layer disposed over at least said second LED, and a diffusing layer disposed over said first and second photoluminescence layers, said diffusing layer comprising light scattering particles. A method and component are also provided.

24. 发明申请

US20210222841A1 Automotive LED Light Source with Glass Lens Over a Glass Converter Plate Containing Phosphor 有权
公开(公告)号：US20210222841A1
公开(公告)日：2021-07-22
申请号：US17226080
申请日：2021-04-09
申请人： Bridgelux, Inc.
发明人： Tao Xu
IPC分类号： F21K9/64 , F21S41/151 , H01L25/075 , H01L33/50 , H01L33/60 , H01L33/62
摘要： A lighting system that is part of a headlight module of a motor vehicle includes an array of LED light sources that include no organic materials. Each light source includes a glass lens attached to a phosphor glass converter plate, which itself is attached to an LED die that is flip-chip mounted on a mounting substrate. The converter plate includes phosphor particles embedded in glass. Each lens is disposed laterally over a single LED die. The converter plate is attached to the LED die by a first bonding layer, and the lens is attached to the converter plate by a second bonding layer. Both bonding layers are made of a metal oxide and are thinner than the converter plate. Either each lens does not extend horizontally outside the lateral boundary of each converter plate, or the lens portions centered on each LED die are part of a unitary lens array.

25. 发明申请

US20200381595A1 White Light Emitting Device Comprising Multiple Photoluminescence Materials 审中-公开
公开(公告)号：US20200381595A1
公开(公告)日：2020-12-03
申请号：US16429303
申请日：2019-06-03
申请人： Bridgelux, Inc.
发明人： Tao Xu
IPC分类号： H01L33/50 , H01L25/075
摘要： There is provided a white light emitting device comprising: first and second LEDs operable to generate excitation light having a dominant wavelength in a range from 440 nm to 480 nm and mounted on a substrate; a first photoluminescence material which generates light having a peak emission wavelength in a range from 500 nm to 590 nm; and a second photoluminescence material which generates light having a peak emission wavelength in a range from 600 nm to 650 nm, wherein the first LED is covered by the first photoluminescence material, and the second LED is covered by the first and second photoluminescence materials.

26. 发明授权

US10043957B2 Surface-textured encapsulations for use with light emitting diodes 有权
公开(公告)号：US10043957B2
公开(公告)日：2018-08-07
申请号：US15225752
申请日：2016-08-01
申请人： BRIDGELUX, INC.
发明人： Tao Xu
IPC分类号： F21V5/00 , H01L33/54 , H01L33/48 , H01L25/075 , H01L27/15 , H01L33/58 , H01L33/50 , H01L33/56 , H01L33/62
CPC分类号： H01L33/54 , H01L25/0753 , H01L27/156 , H01L33/48 , H01L33/502 , H01L33/56 , H01L33/58 , H01L33/62 , H01L2924/0002 , H01L2924/1815 , H01L2933/0041 , H01L2933/005 , H01L2933/0066 , H01L2933/0091 , H01L2924/00
摘要： Surface-textured encapsulations for use with light emitting diodes. In an aspect, a light emitting diode (LED) array apparatus includes a plurality of LEDs mounted to a substrate and an encapsulation covering the LEDs and having a surface texturing configured to extract light, wherein the surface texturing is includes at least one light extracting feature having a diameter larger than two or more of the LEDs.

27. 发明授权

US09691813B2 System for wafer-level phosphor deposition 有权
公开(公告)号：US09691813B2
公开(公告)日：2017-06-27
申请号：US14479031
申请日：2014-09-05
申请人： Bridgelux, Inc.
发明人： Tao Xu
IPC分类号： H01L27/15 , H01L33/50 , H01L21/78 , H01L21/66 , H01L33/00
CPC分类号： H01L27/153 , H01L21/78 , H01L22/10 , H01L33/005 , H01L33/508 , H01L2933/0041 , H01L2933/0058
摘要： System for wafer-level phosphor deposition. A method for phosphor deposition on a semiconductor wafer that has a plurality of LED dies includes the operations of covering the semiconductor wafer with a selected thickness of photo resist material, removing portions of the photo resist material to expose portions of the semiconductor wafer so that electrical contacts associated with the plurality of LED dies remain unexposed, and depositing phosphor on the exposed portions of the semiconductor wafer.

28. 发明申请

US20130341669A1 Phosphor Placement In White Light Emitting Diode Assemblies 有权
标题翻译：白光发射二极管组件中的磷光体放置
公开(公告)号：US20130341669A1
公开(公告)日：2013-12-26
申请号：US14012901
申请日：2013-08-28
申请人： Bridgelux, Inc.
发明人： Tao Xu , Zhengqing Gan
IPC分类号： H01L33/50
CPC分类号： H01L33/504 , H01L25/0753 , H01L33/505 , H01L2224/48091 , H01L2224/48137 , H01L2933/0041 , H01L2924/00 , H01L2924/00014
摘要： A white LED assembly includes a blue LED die attached to a substrate. A first volume of a first luminescent material surrounds the blue LED die in a lateral dimension such that none of the first luminescent material is disposed directly over the blue LED die. The first luminescent material includes a relatively inefficient phosphor having a peak emission wavelength longer than 620nm and includes substantially no phosphor having a peak emission wavelength shorter than 620nm. A second volume of a second luminescent material is disposed over the first volume and the blue LED die. The second luminescent material includes a relatively efficient phosphor having a peak emission wavelength shorter than 620nm and includes substantially no phosphor having a peak emission wavelength longer than 620nm. Placement of the first and second luminescent materials in this way promotes removal of heat from the inefficient phosphor and reduces the likelihood of interabsorption.
摘要翻译：白色LED组件包括附接到基板的蓝色LED管芯。第一发光材料的第一体积以横向尺寸围绕蓝色LED管芯，使得第一发光材料都不直接设置在蓝色LED管芯上。第一发光材料包括具有比620nm长的峰值发射波长的相对低效的荧光体，并且基本上不包括峰值发射波长短于620nm的荧光体。第二体积的第二发光材料设置在第一体积和蓝色LED管芯上。第二发光材料包括具有短于620nm的峰值发射波长的相对有效的荧光体，并且基本上不包括具有长于620nm的峰值发射波长的荧光体。以这种方式放置第一和第二发光材料有助于从低效磷光体去除热量，并降低吸收的可能性。

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