A display device comprises a first substrate comprising at least one light-emitting element; a second substrate facing the first substrate, wherein light emitted from the light-emitting element is to be incident on the second substrate; and a filling layer between the first substrate and the second substrate, wherein the filling layer comprises a filling pattern comprising a first pattern part on the first substrate and having a curve portion formed in at least a part thereof.

The present disclosure relates to a vibration generation device, a display apparatus including the vibration generation device, and a vehicle including the vibration generation device. A vibration generation device includes a piezoelectric ceramic part having a certain interval, a piezoelectric material layer between the piezoelectric ceramic parts, and an electrode part configured to provide electric field to one or more of the piezoelectric ceramic part and the piezoelectric material layer.

An organic electroluminescence device having RGB pixel areas, wherein optical compensation layers are respectively arranged between the red light emitting layer and the first organic functional layer as well as between the green light emitting layer and the first organic functional layer, the optical compensation layers are made of a first hole transport material and a second hole transport material, the first hole transport material has a triplet-state energy level 2.48 eV and a HOMO energy level 5.5 eV, the second hole transport material has a HOMO energy level >5.5 eV, and the difference between the HOMO energy level of the first hole transport material and the HOMO energy level of the second hole transport material is 0.2 eV. Its preparation process is simple, and it can significantly reduce power consumption of the light-emitting device so as to increase light-emitting efficiency.

An electroluminescent display device includes: a substrate, a first subpixel on the substrate, a second subpixel on the substrate, a third subpixel on the substrate, a respective first electrode in each of the first to third subpixels, an emission layer on the first electrodes, a common second electrode on the emission layer, an encapsulation layer including: a first encapsulation layer on the second electrode, and a second encapsulation layer on the first encapsulation layer, and a first semi-transmissive layer between the first encapsulation layer and the second encapsulation layer, the first semi-transmissive layer overlapping the first electrode of the first subpixel.

A display device includes a first panel including a pad side area at one side of the first panel, a first optically transparent adhesive member on one surface of the first panel, a printed circuit board including a first attachment portion attached to the one surface of the first panel at the pad side area, a window on the first optically transparent adhesive member, a second optically transparent adhesive member on the other surface of the first panel, and a second panel on the second optically transparent adhesive member opposite the first panel, wherein the pad side area has a connection area at which the printed circuit board is attached to the first panel, and at which an edge of the first optically transparent adhesive member extends beyond an edge of the second optically transparent adhesive member, and a non-connection area at which the printed circuit board is not attached.

[Object] To provide an optical stack and so forth easily produced.

[Solution] An resin layer (1), an optical compensation layer (4), a polarizer (6), and a hard coat layer (7) are stacked in this order from a panel side.

Disclosed are a light emitting device which has improved reliability by increasing bonding force between a cathode and organic layers contacting both surfaces thereof, and a transparent display device using the same.

Disclosed is a light emitting display device that can enhance light extraction efficiency of light which is emitted from a light emitting element. The light emitting display device includes: an uneven portion that is provided on a substrate and includes a plurality of concave portions separated from each other and protruding portions between the plurality of concave portions; and a light emitting element that is provided on the uneven portion. Each protruding portion includes a vertex portion that is provided between three neighboring concave portions and a connection portion that is connected to two neighboring vertex portions between two neighboring concave portions and has a height less than that of the vertex portions.

Display structures for controlling viewing angle color shift are described. In various embodiments, polarization sensitive diffusers, independent controlled cathode thicknesses, filtermasks, and color filters are described.

A display device includes a first panel including a pad side area at one side of the first panel, a first optically transparent adhesive member on one surface of the first panel, a printed circuit board including a first attachment portion attached to the one surface of the first panel at the pad side area, a window on the first optically transparent adhesive member, a second optically transparent adhesive member on the other surface of the first panel, and a second panel on the second optically transparent adhesive member opposite the first panel, wherein the pad side area has a connection area at which the printed circuit board is attached to the first panel, and at which an edge of the first optically transparent adhesive member extends beyond an edge of the second optically transparent adhesive member, and a non-connection area at which the printed circuit board is not attached.