LIGHTING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE Russian patent published in 2012 - IPC F21S2/00 G02F1/13357 

Abstract RU 2470215 C2

FIELD: electricity.

SUBSTANCE: invention refers to the sphere of electrical engineering. A lighting device comprises a source of light (5), multiple light-radiating modules (11), every of which includes a light guide (7), which scatters light from the source of light and provides for outlet of the scattered light from the light-radiating surface, and a substrate (4), with which a source of light (5) is fixed, and which is connected to the light guide (7). On the light guide (7) surface, which faces the substrate (4), there is a ledge (12) formed for levelling with the substrate (4), and on the substrate (4) there is a through hole (13), in which the ledge (12) is inserted. The section B of engagement (levelling section) of the ledge (12) and a through hole (13) is arranged so that it is located closer to a light-radiating section (7b) of the light guide compared to the field A of connection between the light guide (7) and the substrate (4).

EFFECT: improved homogeneity of image brightness due to highly accurate levelling of a source of light and a light guide.

10 cl, 8 dwg

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RU 2 470 215 C2

Authors

Mori Khirokazu

Dates

2012-12-20Published

2009-09-07Filed