29 results about "Organic devices" patented technology

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

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.

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.

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.

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.

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.

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.

The present invention relates to a negative radiation-sensitive composition, a method for manufacturing a light-emitting device, a cured film, and an organic EL device. The negative radiation-sensitive composition has sufficient resolution and can obtain a cured film having sufficient chemical resistance and excellent adhesion even when heated at a low temperature. The present invention also relates to a method for manufacturing a light-emitting device, a cured film, and an organic EL device. The light-emitting device comprises a substrate, a light-emitting element on the substrate, a sealing layer on the element, and a hardened resin part which is directly or indirectly positioned on the sealing layer and is provided with at least one hardened resin layer. The manufacturing method comprises the following steps in sequence: forming the light-emitting element and the sealing layer on the element on the substrate; forming a coating film by directly or indirectly applying a composition on the sealant layer; irradiating at least a portion of the coating film with radiation; carrying out alkali development on the coating film irradiated by the radioactive rays; when heated at 100 DEG C or less, the composition contains: an alkali-soluble resin (A) containing a structural unit having an acidic group and a structural unit having at least one group selected from the group consisting of an oxeteropropyl group and an oxeterobutyl group; a polyfunctional radical polymerizable compound (B); and a photo-radical polymerization initiator (C).

A vapor deposition mask according to the present disclosure includes a mask substrate that contains silicon, a mask layer that includes a first surface and a second surface that is located opposite the first surface and that faces the mask substrate, and a through-hole that extends through the mask layer. The mask substrate includes a substrate opening. The through-hole is located in the substrate opening in a plan view. The mask layer includes a mask body layer that forms the first surface and a mask intermediate layer that is located between the mask body layer and the mask substrate. The mask body layer contains a resin material.

To provide a mask which can make uniform the thickness of a vapor deposition material attaching to a substrate.SOLUTION: A mask 20 includes a first layer including at least one first opening, and a metal layer 40 including a plurality of second openings 41 overlapped with the first opening in a plane view. The metal layer 40 includes an effective region formed with a plurality of second openings 41, and a peripheral region surrounding the effective region. The peripheral region has a section 48A surrounded by a recess or a lost part 43.SELECTED DRAWING: Figure 4

Compounds of formulae (2-7) or (2-9) are provided:Also provided are organic electroluminescence (EL) devices containing the compounds having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.

An organic device includes a first element and a second element disposed adjacent to the first element. The first and second elements include a first electrode, a second electrode, an organic layer disposed between the first and second electrodes, and an insulation layer covering the first electrode. The insulation layer has an eaves shape including a protruding portion protruding from the insulation layer of the first element toward the second element. The organic layer includes a charge transport layer and a functional layer and satisfies the following:{2⁢t>x⁢2>2⁢t′t>x⁢1>t′y>t′,(1)where t represents a total film thickness of the organic layer in the eaves shape, t′ represents a film thickness of the charge transport layer, x1 represents a protruding amount, x2 represents a distance between the eaves shapes of the first and second elements, and y represents a distance from a lower surface of the first electrode to the protruding portion.

The invention provides a polycyclic aromatic compound, a material for organic devices, an organic electroluminescent element, a display device, and a lighting device. This polycyclic aromatic compound has one or more structures including a structural unit represented by formula (1). In this polycyclic aromatic compound, an indolocarbazole ring is condensed on a basic skeleton that contains Y1 (for example, boron) and nitrogen (N) in formula (1), and at least one of RNY1 and RNY2 has a group represented by formula (a).

Electro-optical device and electronic device. An organic EL device (1) has: a counter electrode (33); a first reflective layer (52) provided at a first optical distance from the counter electrode (33); a first pixel electrode (31) provided between the counter electrode (33) and the first reflective layer (52); a light-emitting layer (30) provided between the counter electrode (33) and the first pixel electrode (31); an optical distance adjustment layer (57, 58) provided between the first pixel electrode (31) and the first reflective layer (52); and a first relay electrode (71) provided between the first pixel electrode (31) and the first reflective layer (52), electrically connecting the first pixel electrode (31) and the first reflective layer (52), the optical distance adjustment layer (57, 58) being provided at a distance from the first relay electrode (71).

To suppress the occurrence of deformation in a mask support.SOLUTION: A mask support 40 for supporting a mask 50 in the state of applying tension to the mask includes a frame 41 including an opening 43 and a crosspiece 42 positioned at the opening and connected to the frame. The frame includes: a first surface 41a of the frame having a fixed mask, a second surface of the frame positioned on the side opposite to the first surface of the frame; an inner surface positioned between the first surface of the frame and the second surface of the frame and connected with the crosspiece; and an outer surface positioned on the side opposite to the inner surface. The crosspiece includes: a first surface of the crosspiece positioned on the side of the first surface of the frame; a second surface of the crosspiece positioned on the side opposite to the first surface of the crosspiece; and a crosspiece side surface positioned between the first surface of the crosspiece and the second surface of the crosspiece. The first surface of the crosspiece is continuous with the first surface of the frame.SELECTED DRAWING: Figure 4

[Technical Problem] To provide a compound useful as a material for organic devices such as organic electroluminescent devices. [Solution] A polycyclic aromatic compound having a structure composed of one or more structural units represented by Formula (1): in [Formula I], rings A to C are each a substituted or unsubstituted aryl ring or a substituted or unsubstituted heteroaryl ring; and Ar1 and Ar2 are each a substituted or unsubstituted aryl or a substituted or unsubstituted heteroaryl, at least one of which is a monovalent group represented by the formula (Ar) wherein A represents a substituent; Rg1 and Rg2 are each hydrogen or a substituent; and B1 and B2 are alkyl groups in which one or more hydrogens are substituted with deuterium. In the structure, one or more of the aryl or heteroaryl rings may be fused with one or more cycloalkane rings, and one or more hydrogens in the structure may be substituted with deuterium.