Abstract: Embodiments relate to a display device including: a display panel configured to display an image; a backlight unit below the display panel, the blacklight unit configured to emit light; and an optical path control member interposed between the display panel and the backlight unit. The optical path control member includes a first electrode, a second electrode, and a light conversion layer interposed between the first electrode and the second electrode. The light conversion layer includes: a partition portion; and receiving portions which are formed in a pyramid shape within the partition portion and in which scattered particles are dispersed.

Abstract: A foldable display device includes a display panel in which at least a partial area includes a transparent display panel; and a floating screen connected to the display panel and reflecting an image displayed on the display panel. Therefore, a foldable display device which uses a floating screen and a display panel to display an image having more three-dimensional effect.

Abstract: A display device includes a light path control device comprising a first substrate, a first electrode disposed above the first substrate, a second substrate disposed on the first substrate, a second electrode disposed below the second substrate, and a light conversion layer disposed between the first electrode and the second electrode and comprising a partition wall portion and a containing portion alternately disposed with each other.

Abstract: Dielectric ceramic compositions for microwave application which are expressed as (1-x)ZnNb2O6- xTiO2 and designed with mole fractions of TiO2 (x=0.2 to 0.8). CuO of 0.5 to 12.0 % by weight of the total weight of the compositions is added to the compositions. At least one additive oxide of 0.05 to 5.0% by weight of the total weight among V2O5, Sb2O5, Bi2O3, B2O3, NiO, WO3, AgNO3, ZnO, and MgO is added to the compositions. They have good sintering and dielectric characteristics and made through simple manufacturing processes, and lower the production costs.