Abstract: This base proliferating agent is represented by formula (1) or (2), where, in formula (1) and (2), R1, R2, and R3 independently represent a hydrogen atom or a substituent and n independently represents an integer from 1 to 4. A base-reactive resin composition can include this base proliferating agent and a base-reactive compound.

Abstract: An organic electroluminescence device having high light emission efficiency is provided, which includes a first electrode, a second electrode facing the first electrode, and an emission layer disposed between the first electrode and the second electrode.

Abstract: An organic electroluminescence device of an embodiment of the present disclosure includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region.

Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and a plurality of functional layers disposed between the first electrode and the second electrode, wherein at least one functional layer of the plurality of functional layers includes a polycyclic compound represented by Formula 1, thereby showing excellent light emitting efficiency in a short wavelength region:

Abstract: An organic electroluminescence device of an embodiment of the present disclosure includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region, wherein the emission layer may include a polycyclic compound represented by Formula 1, thereby exhibiting high luminous efficiency: wherein at least one selected from R1 to R3 is represented by Formula 2:

Abstract: Embodiments provide a polycyclic compound and a light emitting element that includes the polycyclic compound. The light emitting element includes a first electrode, a second electrode disposed on the first electrode, and at least one functional layer disposed between the first electrode and the second electrode, wherein the at least one functional layer includes the polycyclic compound, which is represented by Formula 1. Formula 1 is defined in the specification. The light emitting element exhibits a long service life.

Abstract: A light emitting element includes a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode and includes a compound represented by Formula 1 below, thereby exhibiting a long service life characteristic.

Abstract: Provided is a light emitting device including a first electrode, a second electrode facing the first electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a host and a dopant, and the host includes a compound represented by Formula E-2a or Formula E-2b, and the dopant includes a fused polycyclic compound represented by Formula 1.

Abstract: A light emitting device includes an emission layer disposed between electrodes. The emission layer includes a host and a delayed fluorescence dopant.

Abstract: This compound which has excellent solvent solubility and compatibility with a resin, and which can generate bases and radicals with high efficiency by being irradiated with active energy rays, is represented by formula (1), where, in formula (1), R1, R2, R3, R5 and R6 represent a hydroxy group or an alkoxy group; the R4's independently represent an organic group containing a thioether bond; R7 and R9 independently represent a hydrogen atom or an alkyl group with 1 to 4 carbons; R8 represents an alkylene group or an arylene group; and X represents an oxygen atom or a sulfur atom. A photopolymerization initiator can include said novel compound; and a photosensitive resin composition can include said photopolymerization initiator, from which a cured product can be obtained that has high sensitivity and no metal corrosion.

Abstract: A light emitting device of an embodiment includes a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer may include a polycyclic compound of an embodiment represented by Formula 1. The light emitting device including the polycyclic compound of an embodiment may show improved efficiency and device life.

Abstract: An organic electroluminescence device (OLED) of an embodiment includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode The emission layer may include a condensed polycyclic compound represented by Formula 1, which is connected to two or three substituents represented by Formula 2, and the OLED may exhibit excellent luminous efficiency:

Abstract: An organic electroluminescence device includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a polycyclic compound having a fused ring system and represented by Formula 1 to achieve high efficiency and improved efficiency drop characteristics in an emission wavelength range:

Abstract: An organic electroluminescence device including a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a compound represented by Formula 1 to achieve high efficiency and an improved efficiency drop in a deep blue emission wavelength region:

Abstract: This base proliferating agent is represented by formula (1) or (2), where, in formula (1) and (2), R1, R2, and R3 independently represent a hydrogen atom or a substituent and n independently represents an integer from 1 to 4. A base-reactive resin composition can include this base proliferating agent and a base-reactive compound.

Abstract: An organic electroluminescence device exhibiting high light emission efficiency is provided, which includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region.

Abstract: This compound, which absorbs long-wavelength active energy rays and generates with high-efficiency radicals and strong bases, and which has excellent reaction efficiency in a base generating chain reaction, is represented by formula (1), where, in formula (1), R1, R2, R3, R5 and R6 independently represent a hydroxy group, an alkoxy group, or an organic group other than those substituents, the R4's independently represent an organic group including a thioether bond, and ‘A’ represents a substituent represented by formula (1-1) or (1-2), where, in formula (1-1), R7 and R8 independently represent a hydrogen atom, an alkyl group or a heterocyclic group, and where, in formula (1-2), R9 and R10 independently represent an amino group or a substituted amino group. A photopolymerization initiator can include said compound; and a photosensitive resin composition can include said photopolymerization initiator.

Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region. The emission layer includes a polycyclic compound represented by Formula 1, thereby showing high emission efficiency.

Abstract: This base proliferating agent is represented by formula (1) or (2), where, in formula (1) and (2), R1, R2, and R3 independently represent a hydrogen atom or a substituent and n independently represents an integer from 1 to 4. A base-reactive resin composition can include this base proliferating agent and a base-reactive compound.

Abstract: Provided is an organic electroluminescence device including a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region. The emission layer includes a polycyclic compound represented by Formula 1, and thus the organic electroluminescence device exhibits high luminous efficiency.