Patent classifications
H10K50/00
Compound and organic light emitting device comprising the same
Provided is a compound of Formula 1: ##STR00001##
where X is O or S; Ar.sub.1 is an aryl having 6 to 20 carbon atoms substituted with at least one functional group selected from the group consisting of cyano, pyridinyl, benzimidazolyl and diphenylphosphine oxide, or a substituted or unsubstituted heteroaryl having 3 to 20 carbon atoms containing at least one N; and Ar.sub.2 is a functional group of Formula 2 below, with the proviso that Ar.sub.1 and Ar.sub.2 are different from each other, ##STR00002##
where Ar.sub.3 is an aryl having 6 to 20 carbon atoms, and m is an integer of 0 to 2, and an organic light emitting device comprising the same.
Display device with a controlled thickness
A display device includes: an underlayer, a first insulating film contacting an upper face of the underlayer, a semiconductor layer, a second insulating film, a first metal layer, a first resin layer, a first electrode, and a second resin layer, in order from a lower layer, wherein at least one of the underlayer, the first resin layer, and the second resin layer is a thin film layer having a maximum film thickness in a display region provided with a light-emitting element being thicker than a maximum film thickness in a frame region surrounding the display region.
Liquid crystal composition, method for producing high-molecular weight liquid crystal compound, light absorption anisotropic film, laminate, and image display device
The present invention provides a liquid crystal composition with which a light absorption anisotropic film excellent in plane shape uniformity with a high alignment degree can be formed, a method of producing same, a light absorption anisotropic film, a laminate, and an image display device. The liquid crystal composition contains a high-molecular weight liquid crystal compound, and a dichroic substance, where the composition is a copolymer containing 90% by mass or more of a repeating unit (1) of Formula (1) and 10% by mass or less of a repeating unit (2) of Formula (2). In Formulae (1) and (2), P1 to P3 represent main chains, L1 to L3 represent a single bond or divalent linking group, P2 to SP3 represent a single bond or spacer group (SP1), M1 to M3 represent mesogenic groups, T1 represents a terminal group, and n and m are integers of 0 or 1. ##STR00001##
LIGHT EMITTING DEVICE AND IMAGE FORMING APPARATUS INCLUDING LIGHT EMITTING DEVICE
A light emitting device 401 includes a silicon substrate and a light emitting region including a lower electrode, a light emitting layer, and an upper electrode, and an exposure head is provided with a printed board on which light emitting devices 401 are arranged in a staggered form and a circuit portion 602 for controlling, on the basis of image data, a voltage of each of electrodes included in the lower electrode so that the light emitting device layer emits light and is for forming an image with a resolution corresponding to an arrangement interval of the lower electrode with respect to a crossing direction, and the circuit portion 602 is disposed together with the light emitting region on the silicon substrate. Costs on wire bonding and an area of a wiring board can be suppressed.
Compound for organic electric device, organic electric device using same, and electronic device
Provided is a novel compound capable of improving the luminous efficiency, stability and lifespan of a device, an organic electronic device using the same, and an electronic device.
DISPLAY DEVICE, METHOD FOR FABRICATING DISPLAY DEVICE, AND ELECTRONIC INSTRUMENT
A display device is formed such that pixels that each include a light emitting element formed by stacking an upper electrode, a light emitting unit, and a lower electrode are arranged in a two-dimensional matrix. The light emitting elements are formed by forming the upper electrodes which are light-transmissive, and then sequentially stacking, onto the upper electrodes, the light emitting units and the lower electrode which is formed from a metal material.
COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, ORGANIC ELECTROLUMINESCENCE DEVICE, AND ELECTRONIC APPARATUS
A compound represented by the following formula (1) (L.sub.1 is a single bond or an unsubstituted arylene group having 6 to 50 ring carbon atoms, and Ar.sub.1 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms).
##STR00001##
LIGHT ABSORPTION ANISOTROPIC FILM, LAMINATE, AND IMAGE DISPLAY DEVICE
Provided is a light absorption anisotropic film capable of preparing an image display device having excellent display performance and excellent durability, and a laminate and an image display device formed of the light absorption anisotropic film. The light absorption anisotropic film is used for an image display device, which is formed of a liquid crystal composition containing a liquid crystal compound and a dichroic substance, in which in a signal derived from the dichroic substance detected by time-of-flight secondary ion mass spectrometry, a relationship between a maximum intensity Imax of the light absorption anisotropic film in a thickness direction and an intensity Isur1 in a surface of the light absorption anisotropic film on a viewing side of the image display device satisfies Expression (I-1) 2.0≤Imax/Isur1.
COMPOUND, LIGHT-EMITTING MATERIAL, AND LIGHT-EMITTING ELEMENT
A compound represented by the following general formula is useful as a light emitting material. Two of R.sup.1 to R.sup.5 each are an aromatic hydrocarbon cyclic group, or a nitrogen atom-containing aromatic heterocyclic group, three of R.sup.1 to R.sup.5 each are a donor group, and at least one thereof is a benzofuran ring-condensed carbazolyl-9-yl group.
##STR00001##
LIGHT-EMITTING ELEMENT
A light-emitting element includes an anode electrode, cathode electrode, an EML, and an HTL. The HTL includes a hole transport material, and a first polymer containing a polysiloxane bond in the main chain and having a functional group including a π-conjugated electron pair in a side chain of the first polymer.