摘要:
A composite emitting device including: a supporting substrate, a first emitting part comprising a first electrode, a luminescent medium, and a second electrode stacked in this order on the supporting substrate, and a second emitting part including a fluorescent film arranged in a direction different from the light-out coupling direction relative to the luminescent medium, the luminescent medium emitting light by applying a voltage between the first electrode and the second electrode in the first emitting part, and the fluorescent film of the second emitting part absorbing light emitted from the luminescent medium to emit light.
摘要:
A composite emitting device including: a supporting substrate, a first emitting part comprising a first electrode, a luminescent medium, and a second electrode stacked in this order on the supporting substrate, and a second emitting part including a fluorescent film arranged in a direction different from the light-outcoupling direction relative to the luminescent medium, the luminescent medium emitting light by applying a voltage between the first electrode and the second electrode in the first emitting part, and the fluorescent film of the second emitting part absorbing light emitted from the luminescent medium to emit light.
摘要:
A thin film electro-luminescence composition comprising an alkaline earth metal thiogallate represented by the following compositional formula: ##EQU1## wherein M.sup.1 is Sr or Ba; RE is a lanthanoid element; a and b are integers which are different from each other; and wherein x is 0.001 to 0.1 with the proviso that ##EQU2## is excluded or comprising an alkaline earth metal thioaluminate represented by the following compositional formula: ##EQU3## wherein M.sup.2 is Ca, Sr or Ba; RE is a lanthanoid element; c and d are integers which may be different from each other; and wherein y is 0.001 to 0.1,and a thin film electro-luminescence device comprising said thin film electro-luminescence composition as a luminescence layer.
摘要:
A vapor deposition apparatus for depositing thin film on substrates in which solid starting materials are used. In this apparatus, a carrier gas flows up and down in the same direction as gas convection, such that the effect of gas convection is minimized and film thickness and impurity concentration are uniform over the substrate surface. This uniformity is achieved by orienting a main reaction tube in a vertical direction, attaching two branch reaction tubes at the top of the main reaction tube, and venting carrier gas out the bottom of the main reaction tube. Alternately, the main reaction tube can be oriented horizontally, with the substrates being carried on a holder within a container having pores on its top and bottom.
摘要:
A thin film EL device having a double-insulated structure and comprising an emitting layer made of an alkaline-earth sulfide as its host material and doped with Eu.sup.2+ for providing luminescent centers. The emitting layer has a Eu concentration of 0.15 to 0.75 atm. % and a controlled thickness of at least 1.3 .mu.m to impart hysteresis to the brightness vs. applied voltage characteristics of the device.
摘要:
A thin film electroluminescence device comprising an electrode layer, an emitting layer and an electrode layer formed on a substrate one over another, and an insulating layer optionally interposed between the three layers, the emitting layer being made of CaS serving as a host material and doped with Eu.sup.2+ providing luminescent centers.The emitting layer comprising a novel combination of host material and luminescent center produces a red electroluminescence with a high brightness.
摘要:
The object of the invention is to provide UV light of increased luminous intensity. Layered on one surface of a translucent substrate are a transparent electrode, a first insulating layer, an EL layer, a second insulating layer, and a metal electrode, in that order. A compound of the general formula: Zn.sub.(1-x) Mg.sub.x S is selected as a host material of the EL layer, and Gd or a Gd compound is selected as the luminescence center. The composition ratio x of the compound selected as a host material is selected to be within the range of 0.33.ltoreq.x
摘要翻译:本发明的目的是提供增加发光强度的UV光。 层叠在透光性基板的一个表面上的是透明电极,第一绝缘层,EL层,第二绝缘层和金属电极。 选择通式为Zn(1-x)Mg x S的化合物作为EL层的主体材料,选择Gd或Gd化合物作为发光中心。 选择为主体材料的化合物的组成比x选择在0.33≤x≤1的范围内,优选在0.4-0.8的范围内。 该选择允许主体材料的带隙能量高于发光中心的带隙能量,从而防止由主体材料吸收发射的光并提供增加的发光强度的UV光。
摘要:
A multi-color electroluminescent panel comprising common electrodes and a plurality of transparent electrodes, an EL light emitting layer disposed between the common and transparent electrodes and capable of exhibiting a hysteresis in light emission luminance versus applied voltage characteristic, and band-pass color filters provided on the EL light emitting layer for passing therethrough light of a particular color emitted from the EL light emitting layer.
摘要:
The present invention provides a thin film EL device comprising an electrode layer, an emitting layer and an electrode layer formed on a substrate one over another, and an insulating layer interposed between the three layers, the emitting layer containing atoms of a rare-earth element and fluorine atoms in its host material, the atom ratio (F/RE) of the fluorine atoms (F) to the rare-earth atoms (RE) being adjusted to the range of 0.5 to 2.5, and a process for producing the EL device being characterized in that the emitting layer is prepared by forming a film under a condition substantially free from oxygen gas and/or moisture and subjecting the film to a heat treatment at a temperature of 200.degree. C. to 700.degree. C. so that the host material of the emitting layer contains atoms of a rare-earth element (RE) and fluorine atoms (F) in an adjusted atom ratio (F/RE) in the range of 0.5 to 2.5.The present invention affords a thin film EL device which emits, for example, a green luminescence with a high brightness.
摘要:
An object of the present invention is to provide an organic EL element having high light extraction efficiency and to provide a lighting device and a display device provided using the organic EL element. The organic EL element 1 includes: a transparent substrate 2 having a refractive index of 1.8 or more; a stacked body 6 that is provided on the substrate 2 and includes at least one pair of electrodes 3 and 4 and an organic light-emitting layer 5 located between the pair of electrodes 3 and 4; and a porous light-scattering body 2a that is provided on a surface of the substrate 2, the surface being opposite to the stacked body 6.