Abstract: A display capable of preventing an emission layer from deterioration resulting from temperature rise of an electrode also when the same is increased in size and easily connectable with an external current source also when the same is connected with the external current source on a single portion is provided. This display comprises a first electrode formed on a substrate, an emission layer formed on the first electrode, a second electrode formed on the emission layer, a peripheral electrode, arranged to enclose the outer periphery of the second electrode and connected with at least three edges of the outer periphery of the second electrode, having a smaller sheet resistance value than the second electrode, and a current source connection terminal connected to the outer periphery of the peripheral electrode. Thus, current readily flows from the second electrode toward the peripheral electrode, while the current can be dispersedly fed along three or four directions.

Abstract: A display capable of preventing an emission layer from deterioration resulting from temperature rise of an electrode also when the same is increased in size and easily connectable with an external current source also when the same is connected with the external current source on a single portion is provided. This display comprises a first electrode formed on a substrate, an emission layer formed on the first electrode, a second electrode formed on the emission layer, a peripheral electrode, arranged to enclose the outer periphery of the second electrode and connected with at least three edges of the outer periphery of the second electrode, having a smaller sheet resistance value than the second electrode, and a current source connection terminal connected to the outer periphery of the peripheral electrode. Thus, current readily flows from the second electrode toward the peripheral electrode, while the current can be dispersedly fed along three or four directions.

Abstract: An electroluminescent device comprising: a luminous layer provided between a first electrode and a second electrode; and a reflective layer provided on the first electrode side for reflecting light emitted from the luminous layer and emitting the light from said second electrode side; wherein an optical distance L1 between a light-emitting position of the luminous layer and the reflective layer is determined so as to allow the light with wavelength ?, which is center wavelength of the emitted light to be taken out, to increase in intensity as a result of interference, and wherein an optical distance L2 between a reflective interface at the device end portion on the second electrode side and the reflective layer is determined so as to allow the light with wavelength ? to decrease in intensity as a result of interference.

Abstract: A luminescent material for a light emitting device represented by the following general formula (1) or (2) or represented by any of general formulae (3) to (16) as described herein, wherein D is a ligand represented by the following general formula (17) or (18) and R1 through R6 are as described herein.

Abstract: A hole injection electrode made of a transparent conductive film is formed on a substrate made of indium-tin oxide (ITO) or the like. On the hole injection electrode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer are formed in order. On the electron injection layer, an electron injection electrode made of aluminum is formed. The light emitting layer includes a first dopant made of a material capable of converting triplet excitation energy to an emission of a predetermined color and a second dopant made of a material capable of converting single excitation energy to an emission of the same color as the predetermined color. The difference between the emission peak wavelength of the first dopant and the emission peak wavelength of the second dopant is preferably 20 nm or less.

Abstract: An organic electroluminescent device comprising an organic layer including a light emitting layer, between a hole injection electrode and an electron injection electrode, wherein the electron injection electrode has a laminated structure of a metal thin film containing gold such as MgAu, and an auxiliary electrode composed of a transparent electrically conductive metal oxide thin film formed thereon.

Abstract: Provided is a light emitting display apparatus that realizes color display, having: a plurality of organic light emitting devices, each of which includes an organic light emitting layer that synthesizes two or more complementary colors of light that are complementary to each other thereby producing white light, has a resonant structure by which a resonant wavelength is set to a predetermined wavelength, and outputs the white light via the resonant structure; and a plurality of wavelength selection units provided on a path through which the white light is outputted, each wavelength selection unit transmitting only light of a particular wavelength included in the outputted white light, where the predetermined wavelength substantially coincides with a wavelength corresponding to a primary color whose luminous intensity is, if without the resonant structure, the lowest of three primary colors included in the produced white light for the purpose of bringing the produced white light close to white light ideal for a

Abstract: A light emitting display apparatus that achieves color display by using white light as a light source includes a plurality of organic light emitting devices each of which includes an organic light emitting layer that emits the white light. The organic light emitting device is configured so that a resonant wavelength in a thickness direction of the organic light emitting layer is positioned in the blue region of the spectrum. The light emitting display apparatus further includes a plurality of wavelength selection units each of which is provided on a path of the emission of the white light. The wavelength selection unit transmits light of a particular wavelength included in the white light.

Abstract: In an organic EL device, a hole injection electrode is formed on a glass substrate, and a hole transport layer, a luminescent layer, a hole blocking layer, an electron transport layer, and an electron injection electrode are formed in this order on the glass substrate. The hole blocking layer includes a ternary complex compound including two quinolinol derivatives, a group IIIB element, and a halogen element or a phenol derivative.

Abstract: In an organic EL device, a hole injection electrode is formed on a glass substrate, and a hole transport layer, a luminescent layer, a hole blocking layer, an electron transport layer, and an electron injection electrode are formed in this order on the glass substrate. The hole blocking layer includes a ternary complex compound including two quinolinol derivatives, a group IIIB element, and a halogen element or a phenol derivative.

Abstract: A hole injection layer, a hole transport layer, a blue light emitting layer, an orange light emitting layer, an electron transport layer, an electron injection layer, and a cathode are formed in this order on an anode. The blue light emitting layer is composed of a host material doped with an assisting dopant and a luminescent dopant emitting blue light. A material used for the hole transport layer is used for the assisting dopant. The orange light emitting layer is composed of a host material doped with a luminescent dopant emitting orange light.

Abstract: An organic EL device has a stacked structure including a hole injection electrode (an anode), an organic compound layer, and an electron injection electrode (a cathode) in this order on a substrate. The organic compound layer comprises a hole injection layer, a hole transport layer, a light emitting layer, a hole blocking layer, and an electron injection layer. The light emitting layer contains a host material composed of an organic material, a luminescent dopant, and an assisting dopant. Each of the luminescent dopant and the assisting dopant is composed of an organic material for converting triplet excitation energy into luminescence. The assisting dopant assists in movement of the excitation energy, and assists in transportation of carriers.

Abstract: In an organic EL device, a hole injection electrode is formed on a glass substrate, and a hole transport layer, a light emitting layer and a hole blocking layer are formed sequentially on the hole injection electrode. An electron transport layer is formed on the hole blocking layer, and an electron injection electrode is formed on the electron transport layer. The light emitting layer includes an organic platinum group element compound composed of a phenanthridine derivative and a platinum group element. This organic platinum group element compound can emit red-orange light via a triplet excited state.

Abstract: In an organic EL device, a hole injection electrode is formed on a glass substrate, and a hole injection layer, a hole transport layer and a luminescent layer are formed in turn on the hole injection electrode. An electron injection electrode is formed on the luminescent layer. The luminescent layer includes an organic iridium compound composed of a combination of a quinoline derivative and iridium. This organic iridium compound can emit red-orange light via a triplet excited state.

Abstract: A luminescent material for light emitting device represented by the following general formula (1) or (2).

Abstract: In an organic EL device, a hole injection electrode is formed on a glass substrate, and a hole transport layer, a luminescent layer, a hole blocking layer, an electron transport layer, and an electron injection electrode are formed in this order on the glass substrate. The hole blocking layer includes a ternary complex compound including two quinolinol derivatives, a group IIIB element, and a halogen element or a phenol derivative.

Abstract: A display capable of preventing an emission layer from deterioration resulting from temperature rise of an electrode also when the same is increased in size and easily connectable with an external current source also when the same is connected with the external current source on a single portion is provided. This display comprises a first electrode formed on a substrate, an emission layer formed on the first electrode, a second electrode formed on the emission layer, a peripheral electrode, arranged to enclose the outer periphery of the second electrode and connected with at least three edges of the outer periphery of the second electrode, having a smaller sheet resistance value than the second electrode, and a current source connection terminal connected to the outer periphery of the peripheral electrode. Thus, current readily flows from the second electrode toward the peripheral electrode, while the current can be dispersedly fed along three or four directions.