Abstract:
The invention relates to an electroluminescent device comprising a substrate (1), a porous layer (2) that borders on said substrate (1), a laminated body that borders on said porous layer (2) and that is composed of at least a first electrode (3), an electroluminescent layer (4) and a second electrode (5), a colored material, preferably an ink, being present at least partially in the pores of the porous layer (2). Said porous layer (2) may be segmented and include a plurality of different colored materials, so that a black matrix structure and/or a color filter structure is obtained. The invention also relates to a method of manufacturing an electroluminescent device.
Abstract:
The invention relates to a plasma picture screen provided with a phosphor layer (9) which comprises a mixed particle mixture of a standard phosphor and a further phosphor which emits the same color. The use of two phosphors in one phosphor layer (9) renders it possible for undesirable properties of the phosphors to cancel each other out.
Abstract:
A tanning device is described by which the bluish light emitted by mercury vapor lamps is converted into yellow or white light. For this purpose, the mercury lamps, or the sheets of transparent plastics material covering these lamps, are doped or coated with one or more organic or inorganic fluorescent dyes that partially absorb the blue light emitted by the mercury lamps and convert it into light of wavelengths of 550 to 650 nm.
Abstract:
A color cathode ray tube provided with a front shell having an inner and an outer surface and a display screen coating on the front shell comprising a structured phosphor coating with phosphor grids for the colors red, green and blue and a filter system comprised of a first structured optical filter of the transmission type for the color blue and of a second unstructured optical filter.
Abstract:
The present invention relates to a LED comprising a substrate layer (10) with a first surface and a second surface opposing the first surface and having a refractive index of n
Abstract:
This invention relates to a device for determining the conversion power of conversion element, a method for performing these measurements and a method for producing pcLEDs with essentially the same color point applying said device and said method. The device comprises a light source (5), a sample holder (6) and a detector element (7), wherein the light source (5) illuminates the sample holder (6) with a primary light (41), the sample holder (6) is at least locally transparent for a primary light (41), suitable to mount the multitude of conversion elements (3) capable to partly convert the primary light (41) into a secondary light (42), and comprises suitable prevention means (62, 62a, 62b, 62c, 62d, 62e) to prevent a light guiding of the secondary light (42) from one mounted conversion element (3) through the sample holder (6) to another mounted conversion element (3), and the detector element (7) is suitable to measure the intensities of primary and secondary light (41, 42) for each conversion element (3) separately.
Abstract:
The invention relates to a white emitting light source with an improved luminescent material of the formula (AEN2/3)*b (MN)*c (SiN4/3)*d1 CeO3/2*d2 EuO*x SiO2*y AlO3/2 wherein AE is an alkaline earth metal chosen of the group of Ca, Mg, Sr and Ba or mixtures thereofand M is a trivalent element chosen of the group of Al, B, Ga, Sc withd1> 10* d2. In combination with a UV to blue light generating device this material leads to an improved light quality and stability, especially an improved temperature stability for a wide range of applications.
Abstract:
The invention relates to a LED comprising a substrate (10), a first electrode layer and a thin colloidal layer (20) located between the substrate and the first electrode layer, wherein the LED further comprises a smoothing means located within the colloidal layer and/or between the colloidal layer and the first electrode layer so that the outer surface of the colloidal layer facing the first electrode layer has a roughness R a = 30 nm and R a =1 nm, preferably R a = 10 nm and R a = 3 nm and more preferably R a = 5 nm and R a = 3 nm.
Abstract translation:本发明涉及一种LED,其包括位于基板和第一电极层之间的基板(10),第一电极层和薄胶体层(20),其中LED还包括位于胶体层内的平滑装置和/ 或者在胶体层和第一电极层之间,使得面向第一电极层的胶体层的外表面具有粗糙度R sub = 30nm和R a a = 1nm,优选R a a = 10nm,R a a 3 = 3nm,更优选R a a 5 = 5nm,R a a / 3> 3nm。