公开(公告)号：US12087887B2

公开(公告)日：2024-09-10

申请号：US17033699

申请日：2020-09-26

Applicant: Lextar Electronics Corporation

Inventor： Yi-Ting Tsai ,  Hung-Chia Wang ,  Chia-Chun Hsieh ,  Hung-Chun Tong ,  Yu-Chun Lee ,  Tzong-Liang Tsai

IPC: H01L33/50 ,  H01L33/18

CPC classification number: H01L33/502 ,  H01L33/18 ,  H01L2933/0041

Abstract: The wavelength conversion material includes a general formula (I) MmAaBbCcDdEe:ESxREy and satisfies a condition (II) that a proportion of D for the wavelength conversion material greater than or equal to 50%. M is selected from a group consisting of Ca, Sr and Ba. A is selected from a group consisting of elements Mg, Mn, Zn and Cd. B is selected from a group consisting of elements B, Al, Ga and In. C is selected from a group consisting of Si, Ge, Ti and Hf. D is selected from a group consisting of elements 0, S and Se. E is selected from a group consisting of elements N and P. ES is selected from a group consisting of divalent Eu, Sm and Yb. RE is selected from a group consisting of trivalent Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Tm.

公开(公告)号：US11652193B2

公开(公告)日：2023-05-16

申请号：US17083329

申请日：2020-10-29

Applicant: Lextar Electronics Corporation

Inventor： Yi-Ting Tsai ,  Hung-Chia Wang ,  Chia-Chun Hsieh ,  Hung-Chun Tong ,  Yu-Chun Lee ,  Tzong-Liang Tsai

IPC: H01L33/50

CPC classification number: H01L33/502 ,  H01L33/508

Abstract: A light-emitting diode device is provided. First and second green conversion materials are respectively configured to convert a blue light emitted from a blue light-emitting diode to generate a first green light with a first wavelength range and a first wavelength FWHM, and a second green light with a second wavelength range and a second wavelength FWHM. The second wavelength FWHM is smaller than the first wavelength FWHM. A lower bound of the first wavelength range is smaller than a lower bound of the second wavelength range, and an upper bound of the second wavelength range is greater than an upper bound of the first wavelength range. An output light emitted from the light-emitting diode device has a spectral characteristic of less than 50% of TÜV Rheinland and more than 90% of wide color gamut.

公开(公告)号：US20220115257A1

公开(公告)日：2022-04-14

申请号：US17644792

申请日：2021-12-17

Applicant: Lextar Electronics Corporation

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

IPC: H01L21/683 ,  H01L25/075 ,  H01L33/50 ,  H01L33/62

Abstract: A display device includes a substrate, a plurality of white light-emitting units, and a color filter layer. The white light-emitting units are arranged on the substrate at intervals, and the white light-emitting units are chip scale package (CSP). The color filter layer is above the white light-emitting units. Each of the white light-emitting units includes a light-emitting diode chip and a wavelength conversion film. The wavelength conversion film directly covers a top surface and side surfaces of the light-emitting diode chip, and the wavelength conversion film converts light emitted by the light-emitting diode chip into white light.

公开(公告)号：US10816716B2

公开(公告)日：2020-10-27

申请号：US16548901

申请日：2019-08-23

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

IPC: C09K11/02 ,  C09K11/66 ,  H01L33/50 ,  F21V8/00 ,  H01L25/075 ,  H01L33/56 ,  H01L33/62 ,  B82Y20/00 ,  B82Y40/00

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.

公开(公告)号：US20190383990A1

公开(公告)日：2019-12-19

申请号：US16548901

申请日：2019-08-23

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

IPC: F21V8/00 ,  H01L33/62 ,  H01L33/56 ,  H01L33/50 ,  H01L25/075 ,  C09K11/66

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.

公开(公告)号：US11469352B2

公开(公告)日：2022-10-11

申请号：US16698980

申请日：2019-11-28

Applicant: Lextar Electronics Corporation

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

IPC: H01L33/50 ,  H01L33/06 ,  H01L25/075 ,  H01L33/00

Abstract: A display device includes a substrate, a plurality of white light-emitting units, and a color filter layer. The white light-emitting units are arranged on the substrate at intervals, and the white light-emitting units are chip scale package (CSP). The color filter layer is above the white light-emitting units. Each of the white light-emitting units includes a light-emitting diode chip and a wavelength conversion film. The wavelength conversion film directly covers a top surface and side surfaces of the light-emitting diode chip, and the wavelength conversion film converts light emitted by the light-emitting diode chip into white light.

公开(公告)号：US20210135063A1

公开(公告)日：2021-05-06

申请号：US16698980

申请日：2019-11-28

Applicant: Lextar Electronics Corporation

Inventor： Fu-Hsin CHEN ,  Yu-Chun Lee ,  Hung-Chun Tong ,  Tzong-Liang Tsai

IPC: H01L33/50 ,  H01L33/06 ,  H01L33/00 ,  H01L25/075

Abstract: A display device includes a substrate, a plurality of white light-emitting units, and a color filter layer. The white light-emitting units are arranged on the substrate at intervals, and the white light-emitting units are chip scale package (CSP). The color filter layer is above the white light-emitting units. Each of the white light-emitting units includes a light-emitting diode chip and a wavelength conversion film. The wavelength conversion film directly covers a top surface and side surfaces of the light-emitting diode chip, and the wavelength conversion film converts light emitted by the light-emitting diode chip into white light.

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。

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%.

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.