Disclosed is a display device. The display device includes: a flexible display panel; a panel roller which extends long, and around which the display panel is wound, or from which the display panel is unwound; a driving gear which is located in one side of the panel roller, and rotates together with the panel roller; and a motor which is located inside the panel roller, and provides power to the driving gear.

The present disclosure describes a new resin which can be fabricated into conductive and bioactive microstructures via two-photon polymerization. The direct incorporation of conductive poly (3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) and/or multi-walled carbon nanotubes (MWCNTs) in a poly(ethylene glycol) diacrylate (PEGDA)-based blend remarkably enhances the electrical conductivity of microstructures over 10 orders of magnitude. Including biomaterials in the resin can promote cellular adhesion and create functional biosensors made of hybrid non-conductive and conductive structures for sensitive detection. Applications include development cost effective microelectronics in a broad range of biomedical research, electronics and sensors.

Provided are a composition for encapsulating an organic light emitting element and an organic light emitting element display device manufactured therefrom, the composition comprising: (A) a non-silicone-based photocurable multifunctional monomer; (B) a silicone-based photocurable multifunctional monomer; (C) a non-silicone-based photocurable monofunctional monomer; (D) a silicone-based photocurable monofunctional monomer; and (E) an initiator, wherein the silicone-based photocurable multifunctional monomer (B) is represented by chemical formula 1.

The present specification relates to a compound and an organic electronic device including the same.

A display device is disclosed. The display device of the present disclosure may comprise: a flexible display panel; a roller which elongates and on or from which the display panel is wound or unwound; a first frame to which one end of the roller is rotatably coupled; a second frame to which the other end of the roller is rotatably coupled and faces the first frame with respect to the roller; and a door assembly which is positioned to be adjacent to the distal end of the display panel unwound from the roller, and is pivotably connected to the first frame and the second frame.

Provided is a heterocyclic compound of Chemical Formula 1:

##STR00001## wherein: X.sub.1 is O or S; L.sub.1 is a single bond or an unsubstituted phenylene; L.sub.2 is a single bond, or a substituted or unsubstituted: phenylene, naphthylene, or biphenylenyl; Y.sub.1 to Y.sub.3 are each independently N or CR.sub.3, where at least one is N; Ar.sub.1a and Ar.sub.1b are each independently a substituted or unsubstituted: C.sub.6-60 aryl or C.sub.1-60 heteroaryl containing 1 to 3 heteroatoms selected from N, O and S; R.sub.1 and R.sub.2 are each independently hydrogen, deuterium, cyano, or a substituted or unsubstituted C.sub.1-10 alkyl; each R.sub.3 is independently hydrogen, deuterium, halogen, cyano, nitro, amino, or a substituted or unsubstituted: C.sub.1-60 alkyl, C.sub.1-60 haloalkyl, C.sub.1-60 alkoxy, a C.sub.1-60 haloalkoxy, C.sub.3-60 cycloalkyl, C.sub.2-60 alkenyl, C.sub.6-60 aryl, C.sub.6-60 aryloxy, or a C.sub.1-60 heteroaryl containing at least one heteroatom selected from N, O and S; and an organic light emitting device comprising the same.

The present invention relates to a novel compound and an organic electroluminescent device including the same, and the compound according to the present invention is used in an organic material layer of an organic electroluminescent device, preferably an electron transport layer or a hole blocking layer, and may increase luminous efficiency, driving voltage and lifespan of the organic electroluminescent device.

A stretchable substrate according to an embodiment of the present invention comprises a first modulus region which has a first modulus, a second modulus region which is located in a plane direction with respect to the first modulus region and has a second modulus higher than the first modulus, and a third modulus region which is located between the first modulus region and the second modulus region and has an interface modulus which gradually changes between the first modulus and the second modulus, wherein the interface modulus of the third modulus region may be constant in the thickness direction thereof.

The present application relates to a method for preparing an organic electronic device, and the organic electronic device prepared by the same, the method for preparing an organic electronic device can improve flatness and adhesion of an organic layer in a process of sealing an organic electronic element to effectively block moisture or oxygen from the outside, thereby securing the lifetime of the organic electronic device.

The present invention relates to a composition for an organic optoelectronic element, and an organic optoelectronic element and a display device including same, the composition comprising a first compound, a second compound, and a third compound, wherein the first compound is represented by Chemical Formula I, the second compound is represented by Chemical Formula II, and the third compound is represented by Chemical Formula IIIA or Chemical Formula IIIB.

The details of Chemical Formula I, Chemical Formula II, Chemical Formula IIIA and Chemical Formula IIIB are the same as those described in the specification.