Abstract: The present invention relates to a display apparatus comprising front display unit (10) and rear display unit (50), wherein the front display unit (10) and the rear display unit (50) are arranged such that an image on the rear display unit (50) is visible through a portion of the front display unit (10).

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.