Abstract: Provided is a thiadiazole compound with high efficiency and long life which emits light in a near-infrared region and represented by Formula (I). [In the Formula (I), As each independently represent an aryl group which may have a substituent or a diarylamino group.

Abstract: A light emitting element includes a light emitting layer that is provided between an anode, a cathode, an anode, and a cathode, and the light emitting layer is configured to include the compound represented by Formula 1 below and the compound represented by Formula RH-1 below. (In Formula 1, A indicates an aryl group, an arylamino group, or triarylamine that may respectively independently include a hydrogen atom, an alkyl group, and a substituent.) (In Formula IRH-1, n indicates a natural number between 1 and 12, and R represents a substituent or a functional group, and indicates an aryl group or an arylamino group that may respectively independently include a hydrogen atom, an alkyl group, and a substituent.

Abstract: A light emitting unit is positioned to the subject side than a light receiving unit in a sensing device. The light emitting unit includes a light emitting layer, a first electrode, a second electrode which has an opening, and an insulating layer that is provided at a position that corresponds to the opening portion of the second electrode and that partially insulates the first electrode and the second electrode. The light receiving unit includes a light receiving element that receives reflected light. The light blocking layer is provided at a position that corresponds to the opening portion, and an opening portion is formed thereon. In a case when viewed in a plan view, the light blocking layer overlaps the opening portion, and a light receiving face of the light receiving element is positioned within the opening.

Abstract: A compound for an organic EL device as a light-emitting material for use in an organic EL device is provided. The compound includes a polymer molecule containing a light-emitting molecule for determining a luminescent color region of the light-emitting material, and molecules represented by Formulas (1) to (4) as constituent units. (wherein R represents an alkyl group, an aryl group, or an alkylaryl group) (wherein R? represents hydrogen, an alkyl group, or an alkylaryl group).

Abstract: A light-emitting element includes an anode, a cathode, a luminescent layer that is disposed between the anode and the cathode and emits light by applying a current between the anode and the cathode, and an organic layer that is disposed in contact with the anode and the luminescent layer between the anode and the luminescent layer and functions to transport holes. The organic layer includes a hole injection layer and a hole transport layer. The hole injection layer and the hole transport layer each contain an electron transport material that can transport electrons. The electron transport material content in the hole injection layer is different from that in the hole transport layer.

Abstract: A light emitting element has an anode, a cathode, a light emitting layer which is provided between the anode and the cathode and emits light by energizing the anode and the cathode, and a functional layer (a hole injecting layer and a hole transporting layer) which is provided between the anode and the light emitting layer in contact therewith and has a function of transporting a hole, in which the hole injecting layer and the hole transporting layer each are constituted including an electron transporting material having electron transporting properties. The content of the electron transporting material contained in the hole injecting layer and the content thereof contained in the hole transporting layer are different from each other.

Abstract: A light-emitting element includes: an anode; a cathode; a light-emitting layer which is provided between the anode and the cathode and emits light as the anode and the cathode are electrically connected to each other; and an organic layer which is provided between the anode and the light-emitting layer to come in contact with both layers. The organic layer has a first function of transporting holes and a second function of preventing electrons infiltrating from the light-emitting layer from staying in the organic layer.

Abstract: A light-emitting element includes a first interlayer that is disposed between a first and second light-emitting layers so as to be in contact with them and is constituted by containing the same or the same type of material as the host material of the first light-emitting layer and not substantially containing materials having a light-emitting property, for adjusting movement of holes and electrons between the first and second light-emitting layers; and a second interlayer that is disposed between the second light-emitting layer and a third light-emitting layer so as to be in contact with them and is constituted by containing the same or the same type of material as the host material of the second light-emitting layer and/or the host material of the third light-emitting layer and not substantially containing materials having a light-emitting property, for adjusting movement of holes and electrons between the second and third light-emitting layers.

Abstract: A light-emitting element has a cathode, an anode, a light-emitting portion interposed between the cathode and the anode and having a light-emitting layer that emits light on energization between the cathode and the anode, and a hole-injection layer interposed between and in direct contact with the anode and the light-emitting layer and having a capability of receiving holes, and the hole-injection layer is mainly composed of a benzidine derivative.

Abstract: A light-emitting device is provided which includes: a cathode; an anode; at least one light-emitting layer which is provided between the cathode and the anode and which emits light when a voltage is applied between the cathode and the anode; a cathode terminal which is provided at a portion not in contact with the anode and the light-emitting layer and which supplies electrons to the cathode; and an electron adjust layer which includes a material having insulating properties and which adjusts the amount of electrons supplied from the cathode terminal to the cathode, and in the light-emitting device described above, the cathode is connected to the cathode terminal with the electron adjust layer interposed therebetween.

Abstract: A light-emitting element includes a cathode, an anode, a luminescent layer disposed between the cathode and the anode, a first electron transport layer disposed between the luminescent layer and the cathode, and a second electron transport layer in contact with the luminescent layer and the first electron transport layer between the luminescent layer and the first electron transport layer. The luminescent layer contains a red luminescent material emitting red light. The first electron transport layer contains a first electron transport material. The second electron transport layer contains a second electron transport material different from the first electron transport material.

Abstract: A light-emitting element includes a cathode, an anode, a red-light-emitting layer that is disposed between the cathode and the anode and emits red light, a blue-light-emitting layer that is disposed between the red-light-emitting layer and the cathode and emits blue light, a green-light-emitting layer that is disposed between the blue-light-emitting layer and the cathode and emits green light, and an intermediate layer that is disposed between and in contact with the red-light-emitting layer and the blue-light-emitting layer and functions so as to control the transfer of positive holes and electrons between the red-light-emitting layer and the blue-light-emitting layer, wherein the intermediate layer contains a first material and a second material different from the first material, the red-light-emitting layer contains a material of the same type as the first material, and each of the blue-light-emitting layer and the green-light-emitting layer contains a material of the same type as the second material.

Abstract: A light-emitting element includes a cathode; an anode; and a light-emitting section which is disposed between the cathode and the anode and which includes a first light-emitting layer, second light-emitting layer, and third light-emitting layer each containing a corresponding one of luminescent materials emitting light of different colors and host materials supporting the luminescent materials. The first, second, and third light-emitting layers commonly contain a first host material that is one of the host materials. The first light-emitting layer emits light of a first color having a longer wavelength as compared to light emitted from the second and third light-emitting layers and contains a second host material which is one of the host materials and which is different from the first host material. The second host material is superior in enhancing the luminescence of the first light-emitting layer to the first host material.

Abstract: The invention aims to provide a perylene derivative preparation process featuring satisfactory yields and improved preparation efficiency, a perylene derivative obtained by the process, and an organic EL device using the same.

Abstract: A compound for organic EL includes a polymer molecule having molecules shown in the following Formulae 1 to 5 as constituent units. where R is an alkyl group, an aryl group, or an alkylaryl group, where R? is hydrogen, an alkyl group, or an alkylaryl group.

Abstract: A compound for organic electroluminescence includes a polymer molecule having molecules shown in Formulae 1 to 5 as constituent units: wherein R is an alkyl group, an aryl group, or an alkylaryl group, wherein R? is hydrogen, an alkyl group, or an alkylaryl group.

Abstract: An organic electroluminescent device includes a light-emitting layer containing at least one host material and at least one luminescent dopant serving as a guest. The host material is a polymer having repeating units linked to each other by non-conjugated bonds and the luminescent dopant is a ?-conjugated oligomer.

Abstract: A compound for an organic EL device as a light-emitting material for use in an organic EL device is provided. The compound includes a polymer molecule containing a light-emitting molecule for determining a luminescent color region of the light-emitting material, and molecules represented by Formulas (1) to (4) as constituent units.

Abstract: The invention aims to provide a perylene derivative preparation process featuring satisfactory yields and improved preparation efficiency, a perylene derivative obtained by the process, and an organic EL device using the same.

Abstract: A compound for organic electroluminescence includes a polymer molecule having molecules shown in Formulae 1 to 5 as constituent units: wherein R is an alkyl group, an aryl group, or an alkylaryl group, wherein R? is hydrogen, an alkyl group, or an alkylaryl group.