ILLUMINATION DEVICE, DISPLAY DEVICE AND TELEVISION RECEIVER Russian patent published in 2013 - IPC F21S2/00 G02F1/13357 H04N5/66 

FIELD: electricity.

SUBSTANCE: illumination device 12 contains a great number of point sources 80 of light, base 14 comprising point sources 80 of light and window 14b through which light passes from point sources 80, optical element 15 (15a) faced towards point sources 80 of light and capable to cover the window 14b. Point sources 80 of light are located so that they ensure LH zone with high density of light sources in which the interval of the above sources is relatively small and LL zone with low density of light sources in which the interval of the above sources is relatively big. Reflective sections 50 which reflect light emitted by point sources 80 are formed at least in the area brought in coincidence with LL zone with low density of light sources in the optical element 15 (15a).

EFFECT: reducing costs and energy consumption and increasing brightness of illuminated surface.

19 cl, 12 dwg