Abstract: Disclosed is an advertisement display device having a 3D sheet. The advertisement display device having the 3D sheet comprises: a substrate; a backlight unit which is provided on the substrate and irradiates light; and a 3D sheet which is provided on the backlight unit to implement a 3D image by the light irradiated from the backlight unit.

Abstract: A display device including a sub-backlight unit which can prevent the obscure sights caused by light from the light source of the sub-backlight unit arriving on an article or reel of the main display screen and then reflecting in the frontal direction is provided. The sub-backlight unit includes a second light guide panel having an opening part formed therein corresponding to a transparent window, a second light source disposed around the second light guide panel, and a polymer dispersed liquid crystal (PDLC) sheet disposed close to the front side of the opening of the second light guide panel.

Abstract: The present invention relates to a display apparatus comprising front display unit (10), and rear display unit (50) arranged behind the front display unit (10).

Abstract: Provided is a display device for a slot machine. The display device for a slot machine includes: a front display part outputting a first image and a rear display part disposed at a rear side of the front display part to output a second image. The second image of the rear display part can be viewed through a predetermined area of the front display part, the front display part includes: a liquid crystal panel, a light guide plate, disposed at a rear side of the liquid crystal panel, the light guide plate having a viewing window at a position corresponding to the predetermined area so that the second image of the rear display part is transmitted, and a light source is disposed around the light guide plate to provide backlight to the liquid crystal panel.

Abstract: A display device including a sub-backlight unit which can prevent the obscure sights caused by light from the light source of the sub-backlight unit arriving on an article or reel of the main display screen and then reflecting in the frontal direction is provided. The sub-backlight unit includes a second light guide panel having an opening part formed therein corresponding to a transparent window, a second light source disposed around the second light guide panel, and a polymer dispersed liquid crystal (PDLC) sheet disposed close to the front side of the opening of the second light guide panel.