公开(公告)号：US20180122999A1

公开(公告)日：2018-05-03

申请号：US15793026

申请日：2017-10-25

Applicant: Lextar Electronics Corporation

Inventor： Ching-Yi Chen ,  Wen-Wan Tai ,  Yu-Chun Lee ,  Tzong-Liang Tsai

IPC: H01L33/50 ,  H01L33/56 ,  C09K11/77 ,  F21K9/64 ,  F21V9/16 ,  C09K11/72 ,  H01L33/00

CPC classification number: H01L33/502 ,  C09K11/727 ,  C09K11/7774 ,  F21K9/64 ,  F21V9/30 ,  F21Y2115/10 ,  H01L25/0753 ,  H01L33/0095 ,  H01L33/507 ,  H01L33/56 ,  H01L2224/32225 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/73265 ,  H01L2924/12041 ,  H01L2924/00012 ,  H01L2924/00014

Abstract: A wavelength-converting film and a light emitting device and a display device using the same are disclosed. The wavelength converting film comprises a fluoride phosphor powder with a Mn4+ as an activator, wherein the fluoride phosphor powder with the Mn4+ as the activator comprises a sheet-like crystal and has a chemical formula of A2[MF6]:Mn4+, wherein A is Li, Na, K, Rb, Cs, NH4, or a combination thereof, and M is Ge, Si, Sn, Ti, Zr, or a combination thereof.

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

IPC: H01L33/50 ,  F21V8/00

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.

公开(公告)号：US11302678B2

公开(公告)日：2022-04-12

申请号：US16699091

申请日：2019-11-28

Applicant: Lextar Electronics Corporation

Inventor： Hung-Chun Tong ,  Fu-Hsin Chen ,  Wen-Wan Tai ,  Yu-Chun Lee ,  Tzong-Liang Tsai

IPC: H01L25/075 ,  H01L33/58 ,  H01L33/52 ,  H01L33/50

Abstract: A light-emitting package structure includes a light transmissive adhesive layer, a substrate, and at least one light-emitting diode chip. The light transmissive adhesive layer includes a first surface and a second surface facing away from the first surface. The substrate is on the first surface of the light transmissive adhesive layer. The light-emitting diode chip is on the second surface of the light transmissive adhesive layer. The light transmissive adhesive layer has a first portion and a second portion on the second surface, the first portion surrounds the second portion, a vertical projection area of the second portion on the substrate at least entirely covers a vertical projection area of the light-emitting diode chip on the substrate, and a thickness of the second portion is smaller than or equal to a thickness of the first portion.

公开(公告)号：US20180105744A1

公开(公告)日：2018-04-19

申请号：US15725434

申请日：2017-10-05

Applicant: Lextar Electronics Corporation

Inventor： Ren-Hong Wang ,  Wen-Li Zhou ,  Ru-Shi Liu ,  Ching-Yi Chen ,  Wen-Wan Tai ,  Yu-Chun Lee ,  Tzong-Liang Tsai

IPC: C09K11/67 ,  H01L33/50 ,  H01L33/06

CPC classification number: C09K11/675 ,  H01L33/06 ,  H01L33/46 ,  H01L33/502

Abstract: A fluoride phosphor including a sheet-like crystal and a manufacturing method and an application therefore are disclosed. The fluoride phosphor has a chemical formula A2[MF6]:Mn4+, with Mn4+ as an activator. The A is Li, Na, K, Rb, Cs, NH4 or a combination thereof. The M is Ge, Si, Sn, Ti, Zr or a combination thereof. The sheet-like crystal has a thickness d. A crystal flat surface of the sheet-like crystal has a maximum length a. The maximum length a is defined as a distance between two end points on an edge of the crystal flat surface and farthest from each other. 8≤a/d≤35.

公开(公告)号：US10023794B2

公开(公告)日：2018-07-17

申请号：US15725434

申请日：2017-10-05

Applicant: Lextar Electronics Corporation

Inventor： Ren-Hong Wang ,  Wen-Li Zhou ,  Ru-Shi Liu ,  Ching-Yi Chen ,  Wen-Wan Tai ,  Yu-Chun Lee ,  Tzong-Liang Tsai

IPC: C09K11/67 ,  H01L33/50 ,  H01L33/06 ,  H01L33/46

CPC classification number: C09K11/675 ,  H01L33/06 ,  H01L33/46 ,  H01L33/502

Abstract: A fluoride phosphor including a sheet-like crystal and a manufacturing method and an application therefore are disclosed. The fluoride phosphor has a chemical formula A2[MF6]:Mn4+, with Mn4+ as an activator. The A is Li, Na, K, Rb, Cs, NH4 or a combination thereof. The M is Ge, Si, Sn, Ti, Zr or a combination thereof. The sheet-like crystal has a thickness d. A crystal flat surface of the sheet-like crystal has a maximum length a. The maximum length a is defined as a distance between two end points on an edge of the crystal flat surface and farthest from each other. 8≤a/d≤35.

公开(公告)号：US20160365491A1

公开(公告)日：2016-12-15

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

IPC: H01L33/50 ,  F21V8/00 ,  F21K99/00

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.

Abstract translation: 本公开提供了包括蓝色光源，第一荧光材料层和第二荧光材料层的发光结构。 蓝色光源具有发光面。 第一荧光体层覆盖蓝色光源的发光面。 第一荧光材料层由第一荧光材料构成。 第一荧光体的激发带为蓝色波段，第一荧光体的发光带为绿色波段。 第二荧光材料层覆盖第一荧光材料层。 第二荧光材料层由第二荧光材料构成。 第二荧光体的激发带为绿色波段，第二荧光体的发光带为红色波段。 本文还提供了一种灯装置和背光模块。