A device includes an organic insulating film having a contact hole in which an inclined face is formed, a pixel electrode formed along an inclined face of the contact hole and the organic insulating film, an intra-pixel wiring line coupling the pixel electrode to a TFT within the contact hole, a light-emitting layer formed on the organic insulating film to cover the pixel electrode, a light-emitting layer formed to overlap the light-emitting layer at least in the inclined face of the contact hole, and a common electrode formed on the light-emitting layer correspondingly to the pixel electrode.

According to a flexible light-emitting device production method of the present disclosure, after an intermediate region (30i) and a flexible substrate region (30d) of a plastic film (30) of a multilayer stack (100) are divided, the interface between the plastic film (30) and a glass base (10) is irradiated with lift-off light. The multilayer stack (100) is separated into the first portion (110) and the second portion (120) while the multilayer stack (100) is kept in contact with the stage (212). The first portion (110) includes the intermediate region (30i) and a light-emitting device (1000) which are adhered to the stage (212). The light-emitting device (1000) includes a functional layer region (20) and the flexible substrate region (30d). The second portion (120) includes the glass base (10). The intermediate region (30i) adhered to the stage (212) is removed from the stage while the light-emitting device (1000) is kept adhered to the stage.

According to a flexible light-emitting device production method of the present disclosure, after an intermediate region and flexible substrate regions of a plastic film of a multilayer stack are divided from one another, the interface between the flexible substrate regions and a glass base is irradiated with lift-off light. The multilayer stack is separated into a first portion and a second portion while the multilayer stack is in contact with a stage. The first portion includes a plurality of light-emitting devices which are in contact with the stage. The light-emitting devices include a plurality of functional layer regions and the flexible substrate regions. The second portion includes the glass base and the intermediate region. The stage has ejection holes in a region which is to face the intermediate region, from which a fluid is ejected in the separation step.

There is provided a vapor deposition mask including: a resin mask including a plurality of resin mask openings corresponding to a pattern to be produced by vapor deposition; and a metal mask including a metal mask opening, the resin mask and the metal mask being stacked such that the resin mask openings overlap with the metal mask opening, wherein a shape of the metal mask opening as the metal mask is seen in plan view includes a polygon as a basic shape and an elongation part, added to the polygon, the elongation part elongating a length of a whole periphery of the polygon.

There is provided a vapor deposition mask including: a resin mask including a plurality of resin mask openings corresponding to a pattern to be produced by vapor deposition; and a metal mask including a metal mask opening, the resin mask and the metal mask being stacked such that the resin mask openings overlap with the metal mask opening, wherein a shape of the metal mask opening as the metal mask is seen in plan view includes a polygon as a basic shape and an elongation part, added to the polygon, the elongation part elongating a length of a whole periphery of the polygon.

An organic electroluminescent element which has a substrate, a pair of electrodes disposed on this substrate and composed of an anode and a cathode, and at least one organic layer disposed between these electrodes and including a light-emitting layer, and in which a compound expressed by General Formula 1-1 is contained in at least one layer of the aforementioned light-emitting layer(s) exhibits high luminous efficiency, excellent blue color purity, and little change in chromaticity accompanying drive deterioration. (R.sup.1 to R.sup.10 [each] represent a hydrogen atom or a substituent, and at least one of R.sup.1 to R.sup.10 is a substituent expressed by General Formula 1-2; however, a pyrene skeleton is never contained in R.sup.1 to R.sup.10; the asterisk indicates the bonding position with a pyrene ring; X.sup.1 to X.sup.5 [each] represent a carbon atom or a nitrogen atom, and at least one of X.sup.1 to X.sup.5 is a nitrogen atom; R.sup.11 to R.sup.15 [each] represent a hydrogen atom or a substituent, and at least one of R.sup.11 to R.sup.15 is an alkyl group or a silyl group; however, if X.sup.1 to X.sup.5 represent nitrogen atoms, there is no R.sup.11 to R.sup.15 bonded on these nitrogen atoms.) ##STR00001##

An organic electroluminescent element which has a substrate, a pair of electrodes disposed on this substrate and composed of an anode and a cathode, and at least one organic layer disposed between these electrodes and including a light-emitting layer, and in which a compound expressed by General Formula 1-1 is contained in at least one layer of the aforementioned light-emitting layer(s) exhibits high luminous efficiency, excellent blue color purity, and little change in chromaticity accompanying drive deterioration. (R.sup.1 to R.sup.10 [each] represent a hydrogen atom or a substituent, and at least one of R.sup.1 to R.sup.10 is a substituent expressed by General Formula 1-2; however, a pyrene skeleton is never contained in R.sup.1 to R.sup.10; the asterisk indicates the bonding position with a pyrene ring; X.sup.1 to X.sup.5 [each] represent a carbon atom or a nitrogen atom, and at least one of X.sup.1 to X.sup.5 is a nitrogen atom; R.sup.11 to R.sup.15 [each] represent a hydrogen atom or a substituent, and at least one of R.sup.11 to R.sup.15 is an alkyl group or a silyl group; however, if X.sup.1 to X.sup.5 represent nitrogen atoms, there is no R.sup.11 to R.sup.15 bonded on these nitrogen atoms.) ##STR00001##

A method of producing a film having excellent external quantum efficiency when used in a light emitting layer of a light emitting device is provided. A method of film production includes preparing an ink containing a specific metal complex, storing the ink for 3 days or more under light shielding, and forming a film by using the stored ink. The total content of metal complexes having a molecular weight larger by 16, 32 or 48 than that of the specific metal complex according to an area percentage value determined by liquid chromatography is 0.6 or less when the content of the specific metal complex is taken as 100.

A method of producing a film having excellent external quantum efficiency when used in a light emitting layer of a light emitting device is provided. A method of film production includes preparing an ink containing a specific metal complex, storing the ink for 3 days or more under light shielding, and forming a film by using the stored ink. The total content of metal complexes having a molecular weight larger by 16, 32 or 48 than that of the specific metal complex according to an area percentage value determined by liquid chromatography is 0.6 or less when the content of the specific metal complex is taken as 100.

A vapor deposition method and a vapor deposition apparatus that, when a vapor deposition material is deposited on a substrate, make it possible to form deposition layer pattern precisely so that the deposition layer pattern is formed uniformly without a gap formed between a deposition mask and the substrate. A deposition mask is disposed with its periphery held by a frame. A substrate on which a vapor deposition layer is to be formed is mounted over an upper surface of the deposition mask. A vapor deposition source is disposed facing the deposition mask and evaporates a vapor deposition material. The vapor deposition is performed while the substrate is pressed vertically at a position of a center of deflection of the deposition mask and on an upper surface of the substrate until that a length of the substrate substantially becomes identical to a length of the deposition mask being bowed down and expanded.