中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

10 records (took 0.015 seconds)

    Light-emitting diode device
    2.
    发明授权
    Light-emitting diode device 有权

    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.

    Low blue light backlight module
    3.
    发明授权
    Low blue light backlight module 有权

    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%.

    Wavelength converting material and light emitting device
    8.
    发明授权
    Wavelength converting material and light emitting device 有权

    公开(公告)号：US11245056B2

    公开(公告)日：2022-02-08

    申请号：US16698978

    申请日：2019-11-28

    Applicant: Lextar Electronics Corporation

    Inventor： Chang-Zhi Zhong ,  Hung-Chia Wang ,  Hung-Chun Tong ,  Yu-Chun Lee ,  Tzong-Liang Tsai

    IPC: H01L33/50 ,  H01L33/06 ,  H01L31/0216 ,  C09K11/02 ,  C09K11/77 ,  C09K11/64 ,  B82Y20/00

    Abstract: A wavelength converting material includes a luminous core and a first protective layer. The first protective layer covers the luminous core, and the first protective layer includes aluminum silicate. The aluminum silicate includes a plurality of silicon atoms, each of the silicon atoms is one of a zeroth configuration Q4(0Al), first configuration Q4(1Al), second configuration Q4(2Al), third configuration Q4(3Al), and fourth configuration Q4(4Al). The silicon atoms of the zeroth configuration do not connect with aluminum oxide group, and the silicon atoms of the first, second, third, and fourth configurations respectively connect with one, two, three, and four aluminum oxide group(s). A total number of the silicon atoms of the third configuration and the fourth configuration is larger than a total number of the silicon atoms of the zeroth configuration, the first configuration, and the second configuration.

Patent Agency Ranking