To provide a light-emitting device that easily generates energy transition to fluorescent materials having a peak of the light emission spectrum in the deep-blue region and has improved efficiency of light emission, provided is a light-emitting device including a light-emitting layer in which quantum dots and light emitters being phosphors or phosphorescent members are dispersed, a first electrode in a lower layer than the light-emitting layer, and a second electrode in an upper layer than the light-emitting layer, wherein a light emission spectrum of the quantum dots and an absorption spectrum of the light emitters at least partially overlap each other.

In order to suppress a film from being formed in a gap between a mask and a substrate, a technology of improving adhesion between the mask and the substrate is provided. A film-forming method includes the step of suspending a mask MK by a suspension portion HU in a state in which the suspension portion HU is supported by a supporting portion SU and the step of bringing the mask MK suspended by the suspension portion HU into contact with a glass substrate GS in the state in which the suspension portion HU is supported by the supporting portion SU.

A display device includes a light-emitting element layer including a light-emitting element, a TFT layer formed in a lower layer than the light-emitting element layer and including a transistor configured to be used to drive the light-emitting element, and a sealing layer with which the light-emitting element layer is covered. The sealing layer includes a first inorganic sealing film and a second inorganic sealing film in an upper layer than the first inorganic sealing film, and an end face of the TFT layer is covered with the second inorganic sealing film.

According to a flexible OLED device production method of the present disclosure, after an intermediate region (30i) and flexible substrate regions (30d) of a plastic film (30) of a multilayer stack (100) are divided from one another, the interface between the flexible substrate regions (30d) and a glass base (10) is irradiated with laser light. The multilayer stack (100) is separated into a first portion (110) and a second portion (120) while the multilayer stack (100) is in contact with a stage (212). The first portion (110) includes a plurality of OLED devices (1000) which are in contact with the stage (212). The OLED devices (1000) include a plurality of functional layer regions (20) and the flexible substrate regions (30d). The second portion (120) includes the glass base (10) and the intermediate region (30i). The stage (212) has ejection holes in a region which is to face the intermediate region (30i), from which a fluid is ejected in the separation step.

A flexible display supporting substrate of the present disclosure includes: a glass base (11); a plastic film (12) which has a surface (12s), the surface having a polish recess (12c), the plastic film being supported by the glass base (11); and an oxide layer (20) overlying a part of the surface (12s) of the plastic film (12) and covering at least part of the polish recess (12c).

An organic EL light-emitting element is provided in which, by means of an organic material that is a oligomer with a molecular weight of 300-5000, an organic layer coated film 25 is formed in a high-definition pixel pattern in the openings 23a of insulation banks 23 that are formed with a hydrophilic material; a manufacturing method of said organic EL light-emitting element is also provided. The coated film 25 is formed by dropwise injection of a liquid composition containing an organic material oligomer.

Provided is a novel polymer capable of being used as a hole transfer material for an organic electronic device, particularly, an organic EL device.

The polymer of the present disclosure includes a repeating unit represented by Formula (1) as follows in 40 mol % to 100 mol % of the whole repeating unit forming the polymer.

##STR00001##

wherein at least one of R4 and R5 is an aromatic amino group.

Provided is a novel polymer capable of being used as a hole transfer material for an organic electronic device, particularly, an organic EL device.

The polymer of the present disclosure includes a repeating unit represented by Formula (1) as follows in 40 mol % to 100 mol % of the whole repeating unit forming the polymer.

##STR00001##

wherein at least one of R4 and R5 is an aromatic amino group.

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 flexible substrate region (30d) 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 (210). The first portion (110) includes a plurality of light-emitting devices (1000) which are in contact with the stage (210). The light-emitting devices (1000) include a plurality of functional layer regions (20) and the flexible substrate region (30d). The second portion (120) includes the glass base (10) and the intermediate region (30i). The step of irradiating with the lift-off light includes forming the lift-off light from a plurality of arranged light sources and temporally and spatially modulating a power of the plurality of lift-off light sources according to a shape of the flexible substrate region of the synthetic resin film such that the irradiation intensity of the lift-off light for at least part of the interface between the intermediate region (30i) and the glass base (10) is lower than the irradiation intensity of the lift-off light for the interface between the flexible substrate region (30d) and the glass base (10).

The present invention is equipped with: a substrate (10) that has a surface upon which a drive circuit containing a TFT (20) is formed; a planarization film (30) that makes the surface of the substrate planar by covering the drive circuit; and an organic light-emitting element (40) that is provided with a first electrode (41) formed upon the surface of the planarization film and connected to the drive circuit, an organic light-emitting layer (43) formed upon the first electrode, and a second electrode (44) formed upon the organic light-emitting layer. In addition, the planarization film has a two-layer structure comprising an inorganic insulating film (31) and an organic insulating film (32) that are layered upon the TFT, a conductor layer containing a titanium layer and a copper layer is embedded in the interior of a contact hole, and the first electrode is formed electrically connected to the conductor layer.