C09K11/025

Novel anthracene derivatives for organic light-emitting diode and organic light-emitting diode including the same
20180006244 · 2018-01-04 ·

The present invention relates to a novel anthracene derivative, for an organic light-emitting device, and an organic light-emitting device comprising same, the anthracene derivative enabling excellent device characteristics when used as a light-emitting material.

COMPOUND FOR ORGANIC OPTOELECTRONIC DIODE, ORGANIC OPTOELECTRONIC DIODE COMPRISING SAME, AND DISPLAY DEVICE

The present invention relates to: a compound for an organic optoelectronic diode, represented by a combination of chemical formulas 1 and 2; an organic optoelectronic diode comprising the same; and a display device comprising the organic optoelectronic diode. The detailed contents of formulas 1 and 2 are the same as those defined in the specification.

SPIRO-TYPE COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT COMPRISING SAME
20180006233 · 2018-01-04 · ·

The present specification provides a compound having a spiro structure, and an organic light emitting device including the same.

ORGANIC ELECTROLUMINESCENT ELEMENT

The present invention provides an organic electroluminescent element which comprises: an anode; a cathode; and an organic layer interposed between the anode and the cathodes, wherein the organic layer comprises one or more types of layer from the group consisting of a hole-injection layer, hole-transport layer, light-emitting layer, lifetime enhancement layer, electron-transport layer, and electron-injection layer.

ORGANIC LIGHT-EMITTING DIODE HAVING LOW DRIVING VOLTAGE AND LONG LIFESPAN

The present disclosure relates to an organic light-emitting diode having a low driving voltage and long lifespan and more particularly, to an organic light-emitting diode, comprising a first electrode, a second electrode facing the first electrode, and a light-emitting layer interposed therebetween, wherein the light-emitting layer contains at least one of the amine compounds represented by the following Chemical Formula A or Chemical Formula B, plus the compound represented by Chemical Formula D. The structures of Chemical Formulas A, B, and D are the same as in the specification.

Light emitting device
11710807 · 2023-07-25 · ·

A light emitting device includes a light emitting element adapted to emit blue light, quantum dots that absorb part of the blue light emitted from the light emitting element to emit green light, and at least one of a KSF phosphor adapted to absorb part of the blue light emitted from the light emitting element to emit red light and a MGF phosphor adapted to absorb part of the blue light emitted from the light emitting element to emit red light.

Photocurable resin composition, method for preparing the same, and optical film comprising the same

The present invention relates to a photocurable resin composition, a method for preparing the same, and an optical film comprising the same, more specifically, the photocurable resin composition comprises organophosphate-based (meth)acrylate; and a phenolic compound or a phosphate compound containing phenolic —OH. Thus, since the photocurable resin composition can ensure storage stability, it is suitable as a material for a transparent display.

Organic electroluminescent materials and devices

Organic compounds containing indolocarbazoles as electron donor connected with electron acceptors such aza-triphenylene or dibenzoquinoxaline that can improve the performance of phosphorescent organic light emitting devices are disclosed.

Organic electroluminescent materials and devices

A compound having the formula Ir(L.sub.A).sub.n(L.sub.B).sub.3-n, having the structure ##STR00001##
of Formula I is provided. In the structure of Formula I, each of A.sup.1 through A.sup.8 is independently carbon or nitrogen; at least one of A.sup.1 through A.sup.8 is nitrogen; ring B is bonded to ring A through a C—C bond; the iridium is bonded to ring A through an Ir—C bond; X is O, S, or Se; each of R.sup.1 through R.sup.5 are independently selected from a variety of substituents, which may be linked for form a ring; n is an integer from 1 to 3; and at least one R.sup.2 adjacent to ring C is not hydrogen. Formulations and devices, such as OLEDs, that include the first compound are also provided.

ELECTROLUMINESCENT POLYMER BASED ON PHENANTHROIMIDAZOLE UNITS, PREPARATION METHOD THEREFOR, AND USE THEREOF
20230240127 · 2023-07-27 · ·

Disclosed are an electroluminescent polymer based on phenanthroimidazole units, a preparation method therefor, and the use thereof. The electroluminescent polymer based on phenanthroimidazole units has a structure as shown in the formula (I), and the side chain thereof contains phenanthroimidazole units. The electroluminescent polymer (1) has the properties of hybridized local and charge-transfer states, which can improve the utilization of excitons and the electroluminescence properties of devices by means of reverse inter-system crossing to effectively utilize triplet state excitons; (2) the phenanthroimidazole unit has a large degree of conjugation and a strong rigidity, which can not only improve the thermal stability of a material, but can also increase the radiation transition rate of the material and improve the light-emitting efficiency thereof; and (3) the raw materials of the polymer are cheap, the synthetic route is simple, and purification is convenient, which is beneficial for industrial scaled-up production thereof. The polymer has a good solubility, and can be used to prepare large-area flexible display devices by means of a solution processing technology. The polymer has great development potential and prospects in the field of organic electronic display.

##STR00001##