Backlight unit capable of easily forming curved and...

F - Mech Eng,Light,Heat,Weapons – 21 – V

Patent

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Details

F21V 8/00 (2006.01) F21V 29/00 (2006.01) G02F 1/13357 (2006.01) G09F 13/18 (2006.01)

Patent

CA 2626448

Disclosed herein is a backlight unit (1 ), capable of easily forming a curved or three- dimensional shape. The backlight unit (1) according to the present invention comprises a light guide panel (10) which includes a light guide plate having on one surface of both surfaces thereof a plurality of notches (11 ), an uneven dot pattern, a printed dot patter or a sanded surface, of a light diffusion plate; a luminous means which includes a lamp (31) mounted on a PCB (33) to emit light to the light guide panel (10); a groove (13) formed along an edge of the light guide panel (10) so that the luminous means is installed in the light guide panel; and a thin heat radiating plate (50) fices on a back surface of the PCB (33) along the groove.

La présente invention concerne une unité de rétroéclairage (1), capable d~adopter facilement une forme incurvée ou tridimensionnelle. L~unité de rétroéclairage (1) selon la présente invention comprend un panneau (10) de guide de lumière qui comprend une plaque de guide de lumière comportant sur l~une de ses deux surfaces une pluralité d~encoches (11), un motif de points irrégulier, un motif de points imprimés ou une surface poncée, d'une plaque de diffusion de lumière ; un moyen lumineux qui comprend une lampe (31) montée sur une carte de circuit imprimé (33) pour émettre de la lumière vers le panneau (10) de guide de lumière ; un sillon (13) disposé le long d~un bord du panneau (10) de guide de lumière de sorte que le moyen lumineux est installé dans le panneau de guide de lumière ; et une plaque mince (50) de rayonnent de chaleur fixée sur une surface arrière de la carte de circuit imprimé (33) le long du sillon.

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