Invention Application
US20120062821A1 WHITE LED, BACKLIGHT USING SAME, AND LIQUID CRYSTAL DISPLAY DEVICE CONFORMING TO EBU STANDARD
有权
白色LED,使用相同的背光和符合EBU标准的液晶显示装置
- Patent Title: WHITE LED, BACKLIGHT USING SAME, AND LIQUID CRYSTAL DISPLAY DEVICE CONFORMING TO EBU STANDARD
- Patent Title (中): 白色LED,使用相同的背光和符合EBU标准的液晶显示装置
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Application No.: US13229040Application Date: 2011-09-09
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Publication No.: US20120062821A1Publication Date: 2012-03-15
- Inventor: Hajime TAKEUCHI , Ryo Sakai , Tsutomu Ishii , Yasumasa Ooya , Yasuhiro Shirakawa
- Applicant: Hajime TAKEUCHI , Ryo Sakai , Tsutomu Ishii , Yasumasa Ooya , Yasuhiro Shirakawa
- Applicant Address: JP Yokohama-shi JP Minato-ku
- Assignee: TOSHIBA MATERIALS CO., LTD.,Kabushiki Kaisha Toshiba
- Current Assignee: TOSHIBA MATERIALS CO., LTD.,Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Yokohama-shi JP Minato-ku
- Priority: JP2009-056556 20090310
- Main IPC: G02F1/13357
- IPC: G02F1/13357 ; G09F13/04 ; H01J1/62 ; H01L33/44

Abstract:
In a embodiment, a white LED for a backlight of a liquid crystal display device conforming to the EBU standard includes an ultraviolet (purple) light-emitting element, and a phosphor layer which contains 1 to 10 wt % of a green phosphor including a divalent europium-activated silicate phosphor, 40 to 80 wt % of a blue phosphor including at least one selected from a divalent europium-activated halo-phosphate phosphor and a divalent europium-activated aluminate phosphor, and 10 to 50 wt % of a red phosphor including at least one selected from a europium-activated lanthanum oxysulfide phosphor and a europium-activated yttrium oxysulfide phosphor.
Public/Granted literature
- US08632202B2 White LED, backlight using same, and liquid crystal display device conforming to EBU standard Public/Granted day:2014-01-21
Information query
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