摘要:
A measure for improving the light emission efficiency of a light emitting element without degrading characteristics of anode materials used in prior art is provided in manufacture of an upward emission type light emitting element. The present invention is characterized in that nitride or carbide of a metal element belonging to one of Group 4, 5, and 6 in the periodic table (hereinafter referred to as metal compound) is used as the material for forming an anode of a light emitting element. The metal compound has a work function equal to or larger than the work function of conventional anode materials. Therefore, injection of holes from the anode can be improved ever more. Also, with regard to conductivity, the metal compound is smaller in resistivity than ITO. It therefore can fulfil the function as a wire and can lower the drive voltage in the light emitting element compared to prior art.
摘要:
A chelate complex having as its central metal tungsten which is an inexpensive metal and which is a heavy atom is applied to an organic light emitting element, thereby obtaining an organic light emitting element capable of converting the triplet excitation energy into light emission. By applying the organic light emitting element using this metal complex, an inexpensive light emitting device which is bright but consumes little power can be provided as well as an electric appliance using the light emitting device.
摘要:
A measure for improving the light emission efficiency of a light emitting element without degrading characteristics of anode materials used in prior art is provided in manufacture of an upward emission type light emitting element. The present invention is characterized in that nitride or carbide of a metal element belonging to one of Group 4, 5, and 6 in the periodic table (hereinafter referred to as metal compound) is used as the material for forming an anode of a light emitting element. The metal compound has a work function equal to or larger than the work function of conventional anode materials. Therefore, injection of holes from the anode can be improved ever more. Also, with regard to conductivity, the metal compound is smaller in resistivity than ITO. It therefore can fulfil the function as a wire and can lower the drive voltage in the light emitting element compared to prior art.
摘要:
It is an object of the present invention to provide a light-emitting device that is high in color purity of light and is high in light extraction efficiency, where sputtering is used to form an electrode on an electroluminescent layer without damage to a layer including an organic material. The present invention provides a light-emitting device comprising a first light-emitting element that emits red light, a second light-emitting element that emits green light, a third light-emitting element that emits blue light, and a color filter, where the color filter comprises a first coloring layer that selectively transmits red light, a second coloring layer that selectively transmits green light, and a third coloring layer that selectively transmits blue light, the first to third light-emitting elements respectively correspond to the first to third coloring layers, wherein each of the first to third light-emitting elements has a first electrode, an electroluminescent layer formed on the first electrode, and a second electrode formed on the electroluminescent layer, and wherein the electroluminescent layer includes a layer in contact with the second electrode, and a metal oxide or a benzoxazole derivative is included in the layer in contact with the second electrode.
摘要:
In a stencil printing in which a perforated stencil sheet is wound around a circumferential surface of a printing drum to which an ink is supplied, and the ink is transferred from the printing drum to a printing sheet through the perforated stencil sheet by pressing the printing sheet to the printing drum while the drum is rotated, a method for controlling a printing density is provided, which comprises controlling an amount of an ink transferred to a printing sheet by selecting a specific value of D from a range predetermined in accordance with the following equation:D=.sqroot. (F/f)in which F is a possible range of pressing force at which the printing sheet is pressed to the drum, and f is a possible range of rotation speed of the drum. Also provided is a printing density controlling device for stencil printing which comprises a means for setting a specific value of D within a range predetermined in accordance with the equation above, whereby an amount of the ink transferred to the printing sheet is controlled. A computer program storage medium is also provided which contains a program for controlling a printing density in stencil printing, in which the program calculates a range of f at a selected value of D or a range of D at a selected value of f, in accordance with the equation above.
摘要:
An automatic focus detecting telescope which offers easy maintenance and which, when applied to a surveying instrument such as an auto-level, provides easy detachment and attachment of an optical horizontal compensation system. Even if the optical horizontal compensation system is detached, no readjustments are required for the automatic focusing apparatus and the eyepiece optical system.
摘要:
An inner focus type telescope includes a sighting objective lens, a focusing lens, a horizon compensating optical system, a focal plane, and an eyepiece through which an object image formed on the focal plane can be viewed, arranged in this order from the object side. The position of the focusing lens is adjustable to form the object image on the focal plane in accordance with the distance of an object to be viewed. The telescope further includes a beam splitting optical system provided in the optical path between the objective lens and the focal plane to split the optical path, a surface equivalent to the focal plane, provided in the beam splitting optical system, and a focus detecting system which detects the state of the focus at the equivalent surface.
摘要:
A monoalkylether of a dihydric phenol compound is produced at a high conversion and selectivity by catalytically dehydration reacting a dihydric phenol compound with a lower monohydric alcohol in the presence of a catalyst comprising at least one inorganic substance of the empirical formula (I):Al.sub.a P.sub.b Ti.sub.c Si.sub.d X.sub.e O.sub.f (I):wherein X is an alkali metal (Group Ia) atom, alkaline earth metal (Group IIa) atom or a metal atom of Group VIII of the Periodic Table, a, b, c, d, e and f are the numbers of Al, P, Ti, Si, X and O atoms respectively, and provided that a =1, b =1.0 to 1.9, c =0 05 to 0.5, d=0.05 to 0.2, e=0 to 0.9 and f=4.2 to 8.1, and collecting the resultant reaction product from the reaction system.
摘要:
A monoalkylether of dihydric phenol compound is produced by bringing a feed gas comprising a mixture gas of a dihydric phenol compound with a monohydric alcohol compound into contact with an active catalyst component comprising at least one member selected from phosphorus compounds, and mixtures and reaction products of phosphorus compounds with boron compounds and carried on an inert solid carrier consisting of, for example, .alpha.-alumina, .gamma.-alumina, activated carbon or titania grains, and preferably having a pore volume of 0.1 ml/g or more and a specific surface area of 1 m.sup.2 /g or more, at a temperature of 200.degree. C. to 400.degree. C., and collecting the resultant reaction product from the reaction mixture.
摘要:
A cyclic amide compound of the formula: ##STR1## wherein X is a hydrogen atom, a halogen atom, a lower alkyl group, a haloalkyl group, a lower alkoxy group, a haloalkoxy group, a lower alkylthio group or a nitro group; Y is a hydrogen atom, a halogen atom, an alkykl roup, a cycloalkyl group, an alkenyl group, an alkylnyl group, a haloalkyl group, a phenyl group, an alkoxy group, a cycloalkoxy group, a cycloalkylalkoxy group, an alkenyloxy group, an alkynloxy group, a benzyloxy group, a phenoxy group, a haloalkoxy group, a lower alkoxy-lower alkoxy group, a cyanoalkoxy group, an alkylthio group, an alkenylthio group, an alkynylthio group, a benzylthio group, a phenylthio group, ##STR2## (wherein W is an oxygen atom or a sulfuratom, R.sup.3 is a hydrogen atom or an alkyl group and R.sup.4 is an alkyl group), ##STR3## (wherein each of R.sup.5 and R.sup.6 is a hydrogen atom or a lower alkyl group), an alkylsulfonyl group, ##STR4## (wherein R.sup.5 and R.sup.6 are as defined above an alkylcarbonyl group, an alkoxy carbonyl group, a hydroxy carbonyl group, a nitro group, a cyano group or a hydroxyl group; R is a hydrogen same or different is an alkyl group, or R.sup.1 and R.sup.2 together with the adjacent carbon atom form a ring; m is 0 or 1; n is an integer of from 1 to 5; and k is an integer of 1 or 2.