49 results about "Organic devices" patented technology

The invention relates to a curable composition, a cured film, an organic EL device, and a method for forming a cured resin layer. The present invention relates to a curable composition for forming a cured resin layer of a light-emitting device having a substrate, a light-emitting element on the substrate, a sealing layer on the light-emitting element, and a cured resin part having at least one of the cured resin layers on the sealing layer, the curable composition comprises: an alkali-soluble resin (A); a polyfunctional radical polymerizable compound (B); a photoradical polymerization initiator (C); an ultraviolet absorber (D); and a silane coupling agent (E). The ultraviolet absorber (D) has a transmittance of less than 10% at a wavelength of 360 nm in a 0.006 mass% solution and a transmittance of 80% or more at a wavelength of 410 nm.

To provide materials for organic devices such as materials for organic EL elements, comprising compounds different from conventional ones, in order to increase options for materials for organic EL elements.SOLUTION: Options for materials for organic devices such as materials for organic EL elements are increased by condensing a cycloalkane to a polycyclic aromatic compound in which a plurality of aromatic rings are linked together by boron atoms, oxygen atoms, and the like. By using a novel cycloalkane-condensed polycyclic aromatic compound as a material for an organic EL element, for example, an organic EL element having excellent emission efficiency and element life is provided.SELECTED DRAWING: None

To provide a compound useful as a material for an organic device such as an organic electroluminescent element.SOLUTION: Polycyclic aromatic compounds having a structure consisting of one or two or more structural unit (s) represented by the formula (1); (Ra1 to Ra3, Rb1 to Rb4, Rc1 to Rc4 are independently H or substituents; provided that at least one of Rc1 to Rc4 is a group represented by the formula (1-1); Y1 is B; and are independently> N-RNX; RNX is substituted / unsubstituted aryl; at least one of the aryl ring and the heteroaryl ring in the above structure may be fused with at least one cycloalkane, and H in the above structure may be replaced by D. X1 X2. ) SELECTED DRAWING: None

The invention provides an organic compound containing boron and nitrogen and application of the organic compound in an organic electronic device, the organic compound containing boron and nitrogen has a general formula represented by a combination of a structure (I-1) and a structure (I-2), and the organic compound containing boron and nitrogen is applied to the organic device. The device using the organic compound containing boron and nitrogen has high luminous efficiency, narrow luminescent spectrum FWHM, long service life and the like. # imgabs0 #

Provided is a thermally activated delayed fluorescent emission-type organic electroluminescent device (organic EL device) having a low driving voltage, high luminous efficiency, and a long lifetime. The organic EL device is a delayed fluorescent emission-type organic EL device including one or more light-emitting layers between an anode and a cathode opposite to each other, wherein at least one of the light-emitting layers contains a para-biphenylcarbazole compound-type host material represented by the general formula (1), and an indolocarbazole compound-type thermally activated delayed fluorescent light-emitting material including an indolocarbazole ring in a molecule thereof.

The invention belongs to the technical field of organic electroluminescent materials, and particularly relates to a deuterated compound and an organic device containing the deuterated compound. The organic compound is composed of carbazole having a deuterated aryl group substituted by adamantyl, a direct bond or a benzene ring, a carbazole-based group, and a central aryl group or heteroaryl group, and may include a plurality of adamantyl groups. When the compound provided by the invention is used as a hole transport layer or a light-emitting layer of the organic light-emitting device, the driving voltage of the organic light-emitting device can be effectively reduced, the light-emitting efficiency of the device is improved, and the service life of the device is prolonged.

The present invention relates to the field of organic electroluminescent materials, particularly to a compound and its application in organic optoelectronic devices. The compound has the chemical structure of Formula (I): #imgabs0#. When applied to organic devices, the compound of the present invention can improve the device's electron or hole transport efficiency. The molecule also exhibits high stability, thereby enhancing the device's luminous efficiency and service life.

This invention provides a polycyclic aromatic compound, a material for organic devices, an organic electroluminescent element, a display device, and a lighting device. The polycyclic aromatic compound has a structure comprising one or more structural units represented by formula (1); typically, at least one of ring A, ring B, and ring C is a ring represented by formula (Het), and the others are substituted aryl rings, Y... 1 For B, X 1 and X 2 For >N-R, X 3 and X 4 For >O, >N-R, or >C(-Me) 2 R is a substituted or unsubstituted aryl group, and any two or three consecutive Zs are related to Y. 1 and X 1 and / or X 2 Directly bonded carbon atoms, with other Z atoms being N or C-R. Z R Z The aryl ring or heteroaryl ring in the structure may be condensed from at least one cycloalkane, and may be hydrogen or a substituent.

To provide a novel compound that is suitable as a material for organic devices including organic EL elements.SOLUTION: A polycyclic aromatic compound is represented by formula (1); wherein rings A, B, C, E, G, I, J, and K are each a substituted or unsubstituted aryl ring or a substituted or unsubstituted heteroaryl ring; Z is =C(-H) or the like; X1 and X2 are >N-RNX (where RNX is an aryl), >O, or >S; RNX in X1 may be bonded to ring C or ring d, and RNX in X2 may be bonded to ring h or ring I via a linking group or a single bond; rings A and B, rings B and C, rings E and G, rings I and J, and rings J and K may each be mutually bonded via a single bond or a linking group; and each element in formula (1) may be replaced with a heavy stable isotope.SELECTED DRAWING: None

To provide novel compounds suitable as materials for organic devices such as organic EL elements.SOLUTION: Provided is a polycyclic aromatic compound having a structure comprising one or two or more structural units represented by formula (1), wherein at least one of rings A to C is an aryl ring or heteroaryl ring having a substituent represented by formula (EABC), and J is a group represented by formula (1Ar) or formula (2Ar).SELECTED DRAWING: Figure 1

An organic device includes: a reflective film disposed on a substrate; a first insulating film covering the reflective film; a plurality of lower electrodes disposed on the first insulating film; a second insulating film covering a peripheral portion of each of the plurality of lower electrodes and also covering the first insulating film between the plurality of lower electrodes; an organic functional film covering the plurality of lower electrodes and the second insulating film; and an upper electrode disposed on the organic functional film. The reflective film includes a first reflective portion for a first pixel and a second reflective portion for a second pixel. When T1 is defined as the thickness of the first insulating film disposed at a central portion of the first reflective portion, T2 is defined as the thickness of the first insulating film disposed at a central portion of the second reflective portion, ΔT1 is defined as a step on a surface of the first insulating film on the first reflective portion, and ΔT2 is defined as a step on a surface of the first insulating film on the second reflective portion, T1>T2 and ΔT1<ΔT2 are satisfied.

An organic device comprising a reflective electrode, an organic layer arranged on the reflective electrode, a semi-transmissive electrode arranged on the organic layer and a reflection surface formed above the semi-transmissive electrode is provided. The organic layer emits white light and includes a blue-emitting layer. An optical distance L of the organic layer satisfies L≥[{(ϕr+ϕs) / π}×(λb / 4)]×1.2, where λb is a peak wavelength of the blue-emitting layer, ϕr and ϕs are a phase shift of the wavelength λb in the reflective electrode and the semi-transmissive electrode, respectively. A resonant wavelength of an optical distance between the semi-transmissive electrode and the reflection surface is shorter than the wavelength λb.

Providing novel compounds as materials for organic devices such as organic electroluminescent devices. [Solution] A polycyclic aromatic compound represented by the following formula (1); TIFF2026071228000175.tif70170 In the formula, rings A and C are aryl rings having substituents such as halogens, and rings B and D are aryl rings, and at least one hydrogen atom in these rings may be substituted.

To provide a technique advantageous in suppressing lowering of image quality due to color mixture.SOLUTION: An organic device comprises: a reflection film arranged on a substrate; a first insulation film covering the reflection film; a plurality of lower electrodes arranged on the first insulation film; a second insulation film covering a peripheral part of each of the plurality of lower electrodes and the first insulation film between the plurality of lower electrodes; an organic function film covering the plurality of lower electrodes and the second insulation film; and an upper electrode arranged on the organic function film. The reflection film includes a first reflection part for a first pixel and a second reflection part for a second pixel. When a thickness of the first insulation film disposed on a central part of the first reflection part is referred to as T1, a thickness of the first insulation film disposed on a central part of the second reflection part is referred to as T2, a level difference of a surface of the first insulation film on the first reflection part is referred to as ΔT1, and a level difference of the surface of the first insulation film on the second reflection part is referred to as ΔT2, relations of T1>T2 and ΔT1<ΔT2 are satisfied.SELECTED DRAWING: Figure 1

The organic EL device includes an anode, a light-emitting layer, an anode-side hole transport layer between the anode and the light-emitting layer, the anode-side hole transport layer including an anode-side hole transport material and doped with an electron accepting material, an intermediate hole transport layer between the anode-side hole transport layer and the light-emitting layer, the intermediate hole transport layer including an intermediate hole transport material, and a light-emitting layer-side hole transport layer between the intermediate hole transport layer and the light-emitting layer, the light-emitting layer-side hole transport layer being adjacent to the light-emitting layer, wherein the light-emitting layer-side hole transport layer includes a light-emitting layer-side hole transport material represented by the following formula 1: [Formula 1]

This invention provides a polycyclic aromatic compound, an organic electroluminescent element, a display device, a lighting device, a wavelength conversion material, an organic photodiode, and a solar cell material that can be effectively used as a material for organic EL elements and other organic devices. The polycyclic aromatic compound represented by formula (I) enables the manufacture of high-efficiency and long-life organic EL elements; rings A, B, D, E, and F are aryl or heteroaryl rings, at least one of which has a cyano group as a substituent, and Z... 0 Let C(-H) = , Y be B, X 1 ~X 4 For >N-R NX >O or >S, R NX For unsubstituted aryl, where X 1 and X 2 It is R NX The N-R of the basis represented by equation (Ar) NX , or X 1 and X 3 or X 2 and X 4 They are R NX N-R of mesitylene NX G represents a substituted or unsubstituted aryl group or a substituted or unsubstituted alkyl group, etc.

The present application relates to a polycyclic aromatic compound represented by formula (1) or a multimer of a polycyclic aromatic compound having a plurality of structures represented by formula (1) below, a compound, a crosslinked body, a material, and a device containing the same. The compound or the multimer of the present application is effective as a material for organic devices such as an organic EL element.

A trilayer resist system design and method for patterning organic devices, including organic light emitting diode (OLED) devices suitable for high definition light field displays. The trilayer resist system is composed of a fluoropolymer base layer, an inorganic transfer layer, and a top positive photoresist layer that protects the organics formed on the substrate from damage caused by radiation, developers, and solvents used in conventional photolithography techniques, thereby resulting in high resolution, multicolor OLED arrays.

An organic device includes a reflective film arranged on a substrate, a plurality of lower electrodes arranged above the reflective film, an organic function film configured to cover the plurality of lower electrodes, and an upper electrode arranged on the organic function film. A potential difference between the upper electrode and the reflective film is lower than a threshold voltage at which the organic function film operates.

An organic device includes a reflective film arranged on a substrate, a plurality of lower electrodes arranged above the reflective film, an organic function film configured to cover the plurality of lower electrodes, and an upper electrode arranged on the organic function film. A potential difference between the upper electrode and the reflective film is lower than a threshold voltage at which the organic function film operates.

The organic EL device (100D) of the embodiment comprises: a substrate (1); a driving circuit layer (2), which has a plurality of TFTs formed on the substrate; an interlayer insulating layer (2Pa, 2Pb), which is formed on the driving circuit layer; an organic EL element layer (3), which is formed on the interlayer insulating layer; and a thin film sealing structure (10D), which is formed in a manner covering the organic EL element layer, the interlayer insulating layer having contact holes (CH1, CH2), and contact portions (C1, C2) connecting the driving circuit layer and the organic EL element layer are formed in the contact holes, the surface (2Pb_Sb) of the interlayer insulating layer is flush with the surface (C_Sb) of the contact portion, and the arithmetic mean roughness Ra is less than 50nm.

This organic EL device (100D) is provided with: a substrate (1); a drive circuit layer (2) having a plurality of TFTs formed on the substrate; interlayer insulating layers (2Pa, 2Pb); an organic EL element layer (3); and a thin film sealing structure (10D) in which the interlayer insulating layer has contact holes (CH1, CH2) in which contact portions (C1, C2) connecting the driving circuit layer and the organic EL element layer are formed, the interlayer insulating layer has a first inorganic protective layer and an organic planarization layer, and the thin film sealing structure has a first inorganic barrier layer, an organic barrier layer, and a second inorganic barrier layer, the outer edge of the film sealing structure intersects with the plurality of lead-out wires and is arranged between the outer edge of the organic planarization layer and the outer edge of the first inorganic protection layer, and the outer edge of the film sealing structure intersects with the outer edge of the organic planarization layer and the outer edge of the first inorganic protection layer in the direct contact part of the first inorganic protection layer and the first inorganic barrier layer on the plurality of lead-out wires. The taper angle of the side surface of the first inorganic barrier layer in the cross-sectional shape parallel to the line width direction of the plurality of lead-out wirings is less than 90 DEG.

Provided is an organic thin film that uses an organic material with a high electron affinity as a hole injection material and can improve the drive stability of organic devices. An organic thin film that is hole-injectable and contains two or more organic acceptor materials different in electron affinity comprises: a first layer containing an organic acceptor material relatively low in electron affinity; and a second layer stacked on the first layer and containing an organic acceptor material relatively high in electron affinity, wherein the organic acceptor material relatively low in electron affinity is lower in electron affinity than the organic acceptor material relatively high in electron affinity, and the organic thin film is configured to be used with the first layer located on an anode side.

An organic device includes: a reflective film disposed on a substrate; a first insulating film covering the reflective film; a plurality of lower electrodes disposed on the first insulating film; a second insulating film covering a peripheral portion of each of the plurality of lower electrodes and further covering the first insulating film between the plurality of lower electrodes; an organic functional film covering the plurality of lower electrodes and the second insulating film; and an upper electrode disposed on the organic functional film. The reflective film includes a first reflective portion for the first pixel and a second reflective portion for the second pixel. When T1 is defined as a thickness of the first insulating film disposed at a central portion of the first reflecting portion, T2 is defined as a thickness of the first insulating film disposed at a central portion of the second reflecting portion, [Delta] T1 is defined as a step on a surface of the first insulating film on the first reflecting portion, and [Delta] T1 is defined as a step on a surface of the second insulating film on the second reflecting portion. And when [Delta] T2 is defined as a step on the surface of the first insulating film on the second reflective portion, T1gt is satisfied; t2 and [delta] T1lt; [delta] T2.

Techniques are provided for depositing a monolayer of nanoparticles over an OLED or comparable device. In combination with an enhancement layer disposed within a threshold distance of an emissive layer of the OLED, the nanoparticles may be used to provide a nanopatch antenna or otherwise improve the performance of the OLED.

To provide a novel cyano-substituted polycyclic aromatic compound and an organic EL element including the same.SOLUTION: By introducing a cyano group into a novel polycyclic aromatic compound in which a plurality of aromatic rings are coupled with a boron atom, an oxygen atom, and the like, the range of choices of materials for organic devices, such as materials for organic EL elements, is widened. In addition, by using a novel cyano-substituted polycyclic aromatic compound as a material for organic EL elements, an organic EL element excellent in, for example, luminous efficiency and service life, can be obtained. The compound of the present invention is, for example, a polycyclic aromatic compound as shown below.SELECTED DRAWING: Figure 2

To stably reduce electric resistance of an upper side electrode.SOLUTION: An organic device 10 includes: a substrate 11; a lower side electrode including at least a first lower side electrode 20A and a second lower side electrode 20B which are located on the substrate; a first partition wall 60; an organic layer including at least a first organic layer 30A located on the first lower side electrode and a second organic layer 30B located on the second lower side electrode; an upper side electrode including a first upper side electrode 40A including a part located on the first organic layer and a second upper side electrode 40B including a part located on the second organic layer; a second partition wall 70 located on the first partition wall; and a suppression layer 50 which is located on the upper side electrode or the second partition wall on the organic layer, and contains a polycyclic aromatic compound. The first partition wall 60 or the second partition wall 70 includes a conductive layer 71, and the first upper side electrode and the second upper side electrode come in contact with the conductive layer 71.SELECTED DRAWING: Figure 3

The present disclosure relates to a novel organic compound and an organic EL device including the organic compound. The compound according to the present disclosure may be used in an organic layer of an organic EL device, more specifically, in a light emitting layer, a light emitting auxiliary layer, an electron transport auxiliary layer, or an electron transporting layer and may improve driving voltage, luminous efficiency, and lifespan characteristics of the organic EL device.

An emitting layer of an organic EL device contains a fluorescent first compound, a delayed fluorescent second compound, and a third compound that satisfy numerical formulae (Numerical Formula 1) to (Numerical Formula 4). (Numerical Formula 1): |Af(M1)−Af(M2)|≤0.40 eV, (Numerical Formula 2): Ip(M2)≥5.75 eV, (Numerical Formula 3): |Ip(M2)−Ip(M3)|≤0.25 eV, (Numerical Formula 4): S1(M3)≥S1(M2). Af(M1) is an affinity of the first compound, Af(M2) is an affinity of the second compound, Ip(M2) is an ionization potential of the second compound, S1(M2) is a lowest singlet energy of the second compound, Ip(M3) is an ionization potential of the third compound, and S1(M3) is a lowest singlet energy of the third compound.