发明名称 |
WHITE LED, BACKLIGHT USING SAME AND LIQUID CRYSTAL DISPLAY |
摘要 |
The present invention provides a white LED comprising: an ultraviolet emitting diode or a purple light emitting diode; and phosphors for emitting at least three visible lights including blue light, green light and red light; wherein an emission spectrum of the white LED has: a first luminescence peak in a blue light region having a wavelength of 440 - 460nm; a second luminescence peak in a green light region having a wavelength of 510 - 530nm; and a third luminescence peak in a red light region having a wavelength of 620 - 640nm. Further, it is preferable that a half bandwidth of each of the luminescence peaks is 50nm or less. As a result, there can be provided a white LED, backlight and liquid crystal display using the white LED exhibiting a high luminance and an excellent color reproducing property. |
申请公布号 |
EP1830415(A1) |
申请公布日期 |
2007.09.05 |
申请号 |
EP20050820111 |
申请日期 |
2005.12.20 |
申请人 |
KABUSHIKI KAISHA TOSHIBA;TOSHIBA MATERIALS CO., LTD. |
发明人 |
ISHII, TSUTOMU;TAKEUCHI, HAJIME;SHIRAKAWA, YASUHIRO;OOYA, YASUMASA;SAKAI, RYO;YAMAKAWA, MASAHIKO |
分类号 |
H01L33/00;C09K11/08;C09K11/64;C09K11/73;C09K11/84;G02F1/1335;G02F1/13357;H01L33/50 |
主分类号 |
H01L33/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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