发明名称 |
A light-emitting device comprising porous alumina, and corresponding method of fabrication |
摘要 |
A light-emitting device, in particular a backlight device, comprises a transparent substrate (2) having a front surface and a rear surface, in which associated to the rear surface are means (3, 4, 5) for generating an electromagnetic radiation that is able to pass through the substrate (2) and come out of the front surface. According to the invention, the device comprises a layer of porous alumina (1) which operates so as to inhibit propagation of said electromagnetic radiation in the directions parallel to the plane of the substrate (2), thus improving the efficiency of extraction of light from the substrate (2) and increasing the directionality of the emitted light. |
申请公布号 |
EP1785766(A1) |
申请公布日期 |
2007.05.16 |
申请号 |
EP20070102992 |
申请日期 |
2003.07.11 |
申请人 |
C.R.F. SOCIETA' CONSORTILE PER AZIONI |
发明人 |
LAMBERTINI, VITO;LI PIRA, NELLO;REPETTO, PIERMARIO |
分类号 |
G02F1/13357;H05B33/22;G02B5/00;G02B6/12;G02B6/122;H01J5/16;H01J61/02;H01L51/50;H05B33/14;H05B33/20 |
主分类号 |
G02F1/13357 |
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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