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公开(公告)号:US11879084B2
公开(公告)日:2024-01-23
申请号:US17103972
申请日:2020-11-25
Applicant: Lextar Electronics Corporation
Inventor: Chun-Che Lin , Chun-Han Lu , Yi-Ting Tsai , Yu-Chun Lee , Tzong-Liang Tsai
CPC classification number: C09K11/717 , H01L33/502
Abstract: In the present disclosure embodiments, a phosphate phosphor including an activation center of trivalent chromium and a light emitting device are provided. The light emitting device includes a light source and the above mentioned phosphate phosphor, such that the phosphate phosphor is excited by the light source and emits a wide spectrum of the infrared light. The light emitting device with wide emission spectrum of the infrared light may be widely applied in detecting devices.
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32.
公开(公告)号:US11476133B2
公开(公告)日:2022-10-18
申请号:US16693400
申请日:2019-11-25
Applicant: Lextar Electronics Corporation
Inventor: Fu-Hsin Chen , Yu-Chun Lee
IPC: H01L21/67
Abstract: A picking apparatus is configured to pick up a plurality of micro elements. The picking apparatus includes an elastic plate, a substrate, a temperature-controlled adhesive layer, at least one heating element and a power source. The elastic plate has a first surface and a second surface opposite to each other. The substrate is disposed on the first surface. The temperature-controlled adhesive layer is disposed on the second surface and configured to adhere the micro elements. The heating element is disposed between the second surface and the temperature-controlled adhesive layer. The power source is electrically connected with the heating element. A viscosity of the temperature-controlled adhesive layer varies with a temperature of the temperature-controlled adhesive layer.
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公开(公告)号:US11294238B1
公开(公告)日:2022-04-05
申请号:US17083328
申请日:2020-10-29
Applicant: Lextar Electronics Corporation
Inventor: Kiet Tuong Ly , Fu-Hsin Chen , Yi-Ting Tsai , Hung-Chia Wang , Chia-Chun Hsieh , Hung-Chun Tong , Yu-Chun Lee , Tzong-Liang Tsai
IPC: H01L33/50 , G02F1/13357
Abstract: A low blue light backlight module configured to emit a white light is provided. The low blue light backlight module includes a first light-emitting element, a second light-emitting element, a third light-emitting element and a fourth light-emitting element. The first light-emitting element is configured to emit a first light having a peak emission wavelength of about 610-660 nm. The second light-emitting element is configured to emit a second light having a peak emission wavelength of about 520-550 nm. The third light-emitting element is configured to emit a third light having a peak emission wavelength of about 480-580 nm. The fourth light-emitting element is configured to emit a fourth light having a peak emission wavelength of about 445-470 nm. The white light has an emission spectrum, and an area ratio of the spectrum under wavelength of 415-455 nm to the spectrum under wavelength of 400-500 nm is below 50%.
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34.
公开(公告)号:US10978622B2
公开(公告)日:2021-04-13
申请号:US16537618
申请日:2019-08-11
Applicant: Lextar Electronics Corporation
Inventor: Yi-Ting Tsai , Yu-Chun Lee , Tzong-Liang Tsai
Abstract: A nitride phosphor, and a light emitting device and a backlight module employing the nitride phosphor. The nitride phosphor has the formula (Sr1-x, Bax)LiAl3N4-nOn:Eu3+y, Eu2+z with 0 0.1. The light emitting device includes a light emitting diode configured to emit a first light and the nitride phosphor configured to convert a portion of the first light to a second light. A backlight module includes a printed circuit board and a plurality of the light emitting devices.
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公开(公告)号:US09966505B2
公开(公告)日:2018-05-08
申请号:US14887451
申请日:2015-10-20
Applicant: Lextar Electronics Corporation
Inventor: Ching-Yi Chen , Hung-Chun Tong , Li-Cheng Yang , Wen-Wan Tai , Yu-Chun Lee , Tzong-Liang Tsai
CPC classification number: H01L33/504 , G02B6/0003 , G02B6/0035 , G02B6/0073
Abstract: The present disclosure provides a light emitting structure including a blue light source, a first fluorescent material layer and a second fluorescent material layer. The blue light source has a light emitting surface. The first fluorescent material layer covers the light emitting surface of the blue light source. The first fluorescent material layer consists of a first fluorescent material. An excitation band of the first fluorescent material is in a blue wave band, and an emission band of the first fluorescent material is in a green wave band. The second fluorescent material layer covers the first fluorescent material layer. The second fluorescent material layer consists of a second fluorescent material. An excitation band of the second fluorescent material is in a green wave band, and an emission band of the second fluorescent material is in a red wave band. A light device and a backlight module are also provided herein.
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公开(公告)号:US09831404B2
公开(公告)日:2017-11-28
申请号:US15344578
申请日:2016-11-06
Applicant: Lextar Electronics Corporation
Inventor: Hung-Chun Tong , Yu-Chun Lee
CPC classification number: H01L33/58 , H01L33/507 , H01L33/60 , H01L51/50 , H01L51/524 , H01L2224/48091 , H01L2924/00014
Abstract: A light emitting diode (LED) package includes a light element, a light transferring layer disposed on the light element, a packaging layer enclosing the light transferring layer, a white wall surrounding the packaging layer and a diffusion film disposed on the packaging layer. The light transferring layer has a light outlet face, a light inlet face opposite to the light outlet face and a peripheral side. The light inlet face faces the light element. The white wall surrounds the peripheral side that is enclosed by the packaging layer.
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37.
公开(公告)号:US20170190968A1
公开(公告)日:2017-07-06
申请号:US15364207
申请日:2016-11-29
Applicant: LEXTAR ELECTRONICS CORPORATION
Inventor: Wen-Li Zhou , Wei- Lun Wu , Ru-Shi Liu , Yu-Chun Lee , Ching-Yi Chen , Tzong-Liang Tsai
CPC classification number: C09K11/665 , C30B7/14 , C30B29/12
Abstract: The present disclosure provides a method for fabricating a phosphor. A first solution is formed by dissolving potassium hexafluorogermanate (K2GeF6) and either K2MnF6 or KMnO4 in a hydrofluoric acid solution. An anhydrous ethanol is added to the first solution to make a total concentration of fluoride ions of potassium hexafluorogermanate (K2GeF6), hydrofluoric acid, and either K2MnF6 or KMnO4 equal to or less than 48M to form a precipitate. Afterward, the precipitate is collected.
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公开(公告)号:US20170155020A1
公开(公告)日:2017-06-01
申请号:US15358339
申请日:2016-11-22
Applicant: Lextar Electronics Corporation
Inventor: Shin-Ying Lin , Hung-Chia Wang , An-Cih Tang , Ru-Shi Liu , Tzong-Liang Tsai , Yu-Chun Lee , Ching-Yi Chen , Hung-Chun Tong
CPC classification number: H01L33/502 , B82Y20/00 , C09K11/665 , H01L27/153 , H01L33/38 , H01L33/44 , H01L33/504 , H01L33/505 , H01L33/507 , H01L33/60 , H01L33/62 , H01L2224/48091 , H01L2224/49111 , H01L2224/73265 , H01L2933/0083 , Y10S977/774 , Y10S977/813 , Y10S977/95 , H01L2924/00014
Abstract: A wavelength-converting material and an application thereof are provided. The wavelength-converting material includes an all-inorganic perovskite quantum dot having a chemical formula of CsPb(ClaBr1-a-bIb)3, wherein 0≦a≦1, 0≦b≦1.
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公开(公告)号:US20170153382A1
公开(公告)日:2017-06-01
申请号:US15362120
申请日:2016-11-28
Applicant: Lextar Electronics Corporation
Inventor: Hung-Chia Wang , Xue-Jie Zhang , Shin-Ying Lin , An-Cih Tang , Ru-Shi Liu , Tzong-Liang Tsai , Yu-Chun Lee , Ching-Yi Chen , Hung-Chun Tong
CPC classification number: G02B6/0073 , B82Y20/00 , B82Y40/00 , C09K11/025 , C09K11/665 , G02B6/0031 , G02B6/0051 , H01L25/0753 , H01L33/504 , H01L33/56 , H01L33/62 , H01L2224/48091 , H01L2224/49111 , H01L2224/73265 , H01L2933/0041 , Y10S977/774 , Y10S977/892 , Y10S977/95 , H01L2924/00014
Abstract: A quantum dot composite material and a manufacturing method and an application thereof are provided. The quantum dot composite material includes an all-inorganic perovskite quantum dot and a modification protection on a surface of the all-inorganic perovskite quantum dot. The all-inorganic perovskite quantum dot has a chemical formula of CsPb(ClaBr1-a-bIb)3, wherein 0≦a≦1, 0≦b≦1.
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公开(公告)号:US20170137707A1
公开(公告)日:2017-05-18
申请号:US15253688
申请日:2016-08-31
Applicant: LEXTAR ELECTRONICS CORPORATION
Inventor: Ye Jin , Ru-Shi Liu , Yu-Chun Lee , Ching-Yi Chen , Tzong-Liang Tsai
CPC classification number: C09K11/617 , H01L33/502 , H01L33/504 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2224/49107 , H01L2224/73265 , H01L2933/0041 , H01L2924/00014
Abstract: The present invention provides a method for fabricating a fluoride phosphor. A first solution is formed by dissolving potassium fluoride (KF) and either K2MnF6 or KMnO4 in a hydrofluoric acid solution. A second solution is formed by mixing a surfactant and a silane. The first solution and the second solution are mixed to form a precipitate. The precipitate is collected after the first solution and the second solution are mixed. The present invention also provides a fluoride phosphor represented by the following formula: K2[SiF6]:Mn4+. The fluoride phosphor has a particle size in a range of about 1 μm to about 10 μm. The present invention further provides a light-emitting apparatus and backlight module employing the same.
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