发明名称 ILLUMINATION SYSTEM AND DISPLAY DEVICE.
摘要 <p>A backlight system comprises a light-emitting panel (1) having a front wall (2) and, opposite thereto, a rear wall (3), and opposite first and second light-transmitting edge surfaces (4; 5) associated with a plurality of first and second light sources (6; 7). Light originating from the light sources (6; 7) is diffused in the panel (1). Parts of the surface areas (8; 9) of the rear wall (3) are provided with extraction means (18, 18 , ...; 19, 19 , ...) for extracting light from the panel (1). First extraction means (18, 18 , ...) extract light from, preferably, the first light source (6), and vice versa In operation, said parts of the surface areas (8; 9) project light on a (LCD) display device panel (34) with an associated color filter (35). In the vicinity of the second edge area (5), the concentration of the first extraction means (18, 18 , ...) is higher than that of the second extraction means (19, 19 , ...), and vice versa. Preferably, the extraction means (18, 18 , ..., 19, 19 , ...) are wedge-shaped, a side surface of the first extraction means (18, 18 , ...) directed towards the second light source (7) extending parallel to the second edge surface (5), and vice versa. Preferably, the light sources (6; 7) comprise a plurality of blue, green, (amber) and red LEDs, each preferably having a luminous flux of at least 5 lumen.</p>
申请公布号 MXPA02006204(A) 申请公布日期 2002.12.05
申请号 MX2002PA06204 申请日期 2001.10.10
申请人 LUMILEDS LIGHTING B.V. 发明人 LAMMERS, LIANE
分类号 G02F1/13357;F21V8/00;F21Y101/02 主分类号 G02F1/13357
代理机构 代理人
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