中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

18 records (took 0.014 seconds)

    DISPLAY DEVICE AND HEAD-MOUNTED DISPLAY
    1.
    发明申请
    DISPLAY DEVICE AND HEAD-MOUNTED DISPLAY 审中-公开

    公开(公告)号：US20200089000A1

    公开(公告)日：2020-03-19

    申请号：US16497813

    申请日：2018-03-30

    Applicant: Sharp Kabushiki Kaisha ,  Nichia Corporation

    Inventor： Tokumi HAYASHI ,  Kenichi HATSUDA ,  Seitaro AKAGAWA ,  Takeshi MORIKAWA

    IPC: G02B27/01 ,  G02F1/13357

    Abstract: A display device includes a display panel, a lighting device, at least one light source, a lighting controller, a complex fluoride red phosphor, and a nitride red phosphor. The one light source includes a blue light emitting element and a red phosphor configured to emit red light when excited by the blue light from the blue light emitting element. The lighting controller is configured to control driving of the light source in synchronization with the image display by the display panel so that a one-frame display period in the display panel includes a turn-on period and a turn-off period. The complex fluoride red phosphor constitutes the red phosphor and has a content ratio in a range from 50% to 85% inclusive. The nitride red phosphor constitutes the red phosphor and has a content ratio in a range from 15% to 50% inclusive.

    LIGHT-EMITTING DEVICE AND BACKLIGHT INCLUDING LIGHT-EMITTING DEVICE
    2.
    发明申请
    LIGHT-EMITTING DEVICE AND BACKLIGHT INCLUDING LIGHT-EMITTING DEVICE 审中-公开

    公开(公告)号：US20200091121A1

    公开(公告)日：2020-03-19

    申请号：US16690040

    申请日：2019-11-20

    Applicant: NICHIA CORPORATION

    Inventor： Atsushi YAMAMOTO ,  Keiko ONO ,  Saiki YAMAMOTO ,  Tomokazu MARUYAMA ,  Takeshi MORIKAWA ,  Seitaro AKAGAWA

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

    Abstract: The light-emitting device includes a first light-emitting element having an emission peak wavelength of 430 nm or more and less than 490 nm, a second light-emitting element having an emission peak wavelength of 490 nm or more and 570 nm or less, a support body at which the first light-emitting element and the second light-emitting element are disposed, and a light-transmissive member containing a red phosphor and covering the first light-emitting element and the second light-emitting element. A content density of the red phosphor in the light-transmissive member in a space between the first and second light-emitting elements is higher in a part below an upper surface of the second light-emitting element than in a part above the upper surface thereof.

    LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THEREOF
    3.
    发明申请
    LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THEREOF 有权
    发光装置及其制造方法

    公开(公告)号：US20150263245A1

    公开(公告)日：2015-09-17

    申请号：US14657676

    申请日：2015-03-13

    Applicant: Nichia Corporation

    Inventor： Seitaro AKAGAWA ,  Tomokazu Yoshida

    IPC: H01L33/50 ,  H01L27/15

    CPC classification number: H01L33/502 ,  C09K11/00 ,  C09K11/617 ,  C09K11/7734 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2924/181 ,  H01L2933/0041 ,  H01L2924/00014 ,  H01L2924/00012

    Abstract: A light emitting device includes a package having side walls which define a recess, a light emitting element arranged in the recess, and a sealing member which seals the light emitting element. The sealing member includes a first portion which contains a fluorescent material and covers the light emitting element, and a second portion which does not contain a fluorescent material and is arranged over the first portion. The fluorescent material is a fluoride fluorescent material activated with tetravalent manganese represented by the following formula (I). The particles of the fluorescent material has a surface region with a tetravalent manganese ion concentration is lower than inner side. A2[M1-bMn4+bF6]  (I) In the formula (I), A is a cation which contains K+ and may contain at least one selected from the group consisting of Li+, Na+, Rb+, Cs+, and NH4+, M is at least one of Group 4 and Group 14 elements, and 0

    Abstract translation: 发光器件包括具有限定凹部的侧壁，布置在凹部中的发光元件和密封发光元件的密封构件的封装。 密封构件包括包含荧光材料并覆盖发光元件的第一部分和不包含荧光材料并布置在第一部分上的第二部分。 荧光材料是由下式（I）表示的四价锰活化的氟化物荧光材料。 荧光材料的颗粒具有四价锰离子浓度低于内侧的表面区域。 A2 [M1-bMn4 + bF6]（I）在式（I）中，A是含有K +并且可以含有选自Li +，Na +，Rb +，Cs +和NH 4 +中的至少一种的阳离子，M是 第4组和第14组元素中的至少一个，0

    LIGHT-EMITTING DEVICE AND BACKLIGHT INCLUDING LIGHT-EMITTING DEVICE
    4.
    发明申请
    LIGHT-EMITTING DEVICE AND BACKLIGHT INCLUDING LIGHT-EMITTING DEVICE 有权

    公开(公告)号：US20210183831A1

    公开(公告)日：2021-06-17

    申请号：US17190698

    申请日：2021-03-03

    Applicant: NICHIA CORPORATION

    Inventor： Atsushi YAMAMOTO ,  Keiko ONO ,  Saiki YAMAMOTO ,  Tomokazu MARUYAMA ,  Takeshi MORIKAWA ,  Seitaro AKAGAWA

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

    Abstract: The light-emitting device includes a first light-emitting element having an emission peak wavelength of 430 nm or more and less than 490 nm, a second light-emitting element having an emission peak wavelength of 490 nm or more and 570 nm or less, a support body at which the first light-emitting element and the second light-emitting element are disposed, and a light-transmissive member containing a red phosphor and covering the first light-emitting element and the second light-emitting element. A content density of the red phosphor in the light-transmissive member in a space between the first and second light-emitting elements is higher in a part below an upper surface of the second light-emitting element than in a part above the upper surface thereof.

    LIGHT EMITTING DEVICE AND LEAD FRAME WITH RESIN
    5.
    发明申请
    LIGHT EMITTING DEVICE AND LEAD FRAME WITH RESIN 审中-公开

    公开(公告)号：US20180375004A1

    公开(公告)日：2018-12-27

    申请号：US16019408

    申请日：2018-06-26

    Applicant: NICHIA CORPORATION

    Inventor： Ryohei YAMASHITA ,  Seitaro AKAGAWA ,  Toshiyuki HASHIMOTO ,  Kazuki KODA ,  Kiyoshi KAYAMA ,  Yuta HORIKAWA ,  Ryosuke WAKAKI

    IPC: H01L33/62 ,  H01L25/075 ,  H01L25/16 ,  H01L29/866 ,  H01L33/48 ,  H01L33/50 ,  H01L33/56 ,  H01L33/64 ,  H01L23/00

    Abstract: A light emitting device includes a resin package having a rectangular shape in a top view and two short-side lateral surfaces and two long-side lateral surfaces. The two short-side lateral surfaces include a first external surface and a second external surface located on an opposite side from the first external surface. The two long-side lateral surfaces include a third external surface and a fourth external lateral surface located on an opposite side from the third external lateral surface. The lead is not exposed on the third external lateral surface nor the fourth external lateral surface. The first lead is exposed at the first external lateral surface and the second external lateral surface, respectively flush with the resin member at the first external lateral surface and the second external lateral surface. The second lead is exposed at the second external lateral surface, flush with the resin part at the second external lateral surface.

    METHOD OF DETERMINING CHROMATICITY RANK OF LIGHT EMITTING DEVICE
    6.
    发明申请
    METHOD OF DETERMINING CHROMATICITY RANK OF LIGHT EMITTING DEVICE 审中-公开

    公开(公告)号：US20180024006A1

    公开(公告)日：2018-01-25

    申请号：US15655960

    申请日：2017-07-21

    Applicant: NICHIA CORPORATION

    Inventor： Seitaro AKAGAWA ,  Toshiyuki HASHIMOTO ,  Kentaro NISHIGAKI

    IPC: G01J3/50 ,  B07C5/342 ,  H01L27/15

    CPC classification number: G01J3/505 ,  B07C5/342 ,  G01J3/506 ,  H01L25/0753 ,  H01L27/15 ,  H01L33/502

    Abstract: A method of determining a chromaticity rank of a light emitting device includes selecting the light emitting device having a chromaticity rank in a region surrounded by four defining points on a 1931 CIE Chromaticity Diagram. A ratio of a distance in a y-direction between, of the four defining points, two defining points furthest from each other in the y-direction to a distance in an x-direction between, of the four defining points, two defining points furthest from each other in the x-direction is 0.5 or less A peak light emission wavelength of the blue light emitting element is in a range of 447 to 452 nm, a peak light emission wavelength of the green light emitting element is in a range of 520 to 541 nm, and a peak light emission wavelength of the red light emitting element is in a range of 630 to 632 nm.

    LIGHT EMITTING DEVICE AND A MANUFACTURING METHOD OF THE LIGHT EMITTING DEVICE
    8.
    发明申请
    LIGHT EMITTING DEVICE AND A MANUFACTURING METHOD OF THE LIGHT EMITTING DEVICE 审中-公开

    公开(公告)号：US20180097152A1

    公开(公告)日：2018-04-05

    申请号：US15720346

    申请日：2017-09-29

    Applicant: NICHIA CORPORATION

    Inventor： Seitaro AKAGAWA ,  Kazuki KODA

    IPC: H01L33/50 ,  H01L25/075

    Abstract: A method for manufacturing a light emitting device includes: mounting a first light emitting element whose emission peak wavelength is in a range of 430 nm to 490 nm and a second light emitting element whose emission peak wavelength is in a range of 490 nm to 570 nm; and providing a light transmitting member including a red phosphor and at least one of a green phosphor of which a half width of an emission spectrum is not more than 45 nm and a blue phosphor of which a half width of an emission spectrum is not more than 60 nm. The step of providing the light transmitting member includes adding at least one of a predetermined amount of the green phosphor and a predetermined amount of the blue phosphor based on the emission peak wavelength of the second light emitting element.

    LIGHT EMITTING DEVICE AND RESIN COMPOSITION
    10.
    发明申请
    LIGHT EMITTING DEVICE AND RESIN COMPOSITION 审中-公开
    发光装置和树脂组合物

    公开(公告)号：US20160233396A1

    公开(公告)日：2016-08-11

    申请号：US15132886

    申请日：2016-04-19

    Applicant: NICHIA CORPORATION

    Inventor： Akihiro OTA ,  Seitaro AKAGAWA ,  Hirofumi ICHIKAWA ,  Yasunori SHIMIZU

    IPC: H01L33/56 ,  C09K11/77 ,  C09K11/02 ,  H01L33/54 ,  C08K3/36 ,  C08K3/22 ,  H01L33/50 ,  H01L33/62 ,  C09K11/61 ,  C08K3/34

    CPC classification number: H01L33/56 ,  C08K3/22 ,  C08K3/34 ,  C08K3/36 ,  C08K2003/2227 ,  C08K2003/2237 ,  C08K2003/2244 ,  C08K2003/2296 ,  C09K11/025 ,  C09K11/617 ,  C09K11/7734 ,  H01L33/486 ,  H01L33/502 ,  H01L33/504 ,  H01L33/507 ,  H01L33/54 ,  H01L33/62 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2924/181 ,  H01L2933/0091 ,  H01L2924/00014 ,  H01L2924/00012

    Abstract: Provided a light emitting device comprising: a package; a light emitting element disposed in the package; an encapsulation member that covers the light emitting element, the encapsulation member being formed from a resin composition that contains a fluorescent material, a resin, and nanoparticles selected from at least one of the group consisting of aluminum oxide nanoparticles, titanium oxide nanoparticles, zinc oxide nanoparticles, zirconium oxide nanoparticles, and silicon oxide nanoparticles, wherein when the resin composition includes silicon oxide nanoparticles, the content of the silicon oxide nanoparticles is 0.02 to 5 mass parts relative to 100 mass parts of the resin; and wherein the fluorescent material is a red-light emitting fluorescent material including a fluoride material having a chemical composition that includes tetravalent manganese, at least one selected from the group consisting of alkali metal elements and NH4+, and at least one selected from the group consisting of elements from Group 4 of the periodic table and elements from Group 14 of the periodic table.

    Abstract translation: 提供一种发光器件，包括：封装; 设置在所述封装中的发光元件; 覆盖所述发光元件的封装构件，所述封装构件由含有荧光材料的树脂组合物，树脂和选自氧化铝纳米颗粒，氧化钛纳米颗粒，氧化锌中的至少一种的纳米颗粒形成 纳米颗粒，氧化锆纳米颗粒和氧化硅纳米颗粒，其中当树脂组合物包含氧化硅纳米颗粒时，氧化硅纳米颗粒的含量相对于100质量份树脂为0.02〜5质量份; 并且其中所述荧光材料是包括具有化学组成的氟化物材料的红色发光荧光材料，所述化学组成包括四价锰，选自碱金属元素和NH 4 +的至少一种，以及选自以下的至少一种： 周期表第4组元素和元素周期表第14组元素。

Patent Agency Ranking