摘要:
The invention relates to a display device comprising a first electrode (2) and a second electrode (6), and an optical layer (3) arranged between the electrodes (2, 6), which optical layer (3) emits light under the influence of an electric field applied between said electrodes (2, 6), and comprising a varistor layer (5) which is situated at least in the area of the pixels of the display device.
摘要:
In the field of flexible displays there is a need for an electro-optic filament that is capable of being woven, knitted or crocheted. An electro-optic filament or fibre (10) includes an elongate core (11) extending lengthwise within a volume (12) of polarisable material; and an outer electrode member (13) overlying the volume (12). The core (11) and outer member (13) are electrically conducting and connectable to electrical potentials to generate a radial field in the polarisable material. The outer member (13) is optically transmissive and/or transflective. The polarisable material (12) exhibits an optical effect such as a colour change, change in polarisation or change in reflectivity, when subjected to a said field or a change in a said field. The filament or fibre may readily be woven into eg. a fabric or a garment, using conventional textile processing machinery.
摘要:
In the field of flexible displays there is a need for an electro-optic filament that is capable of being woven, knitted or crocheted. An electro-optic filament or fibre (10) includes an elongate core (11) extending lengthwise within a volume (12) of polarisable material; and an outer electrode member (13) overlying the volume (12). The core (11) and outer member (13) are electrically conducting and connectable to electrical potentials to generate a radial field in the polarisable material. The outer member (13) is optically transmissive and/or transflective. The polarisable material (12) exhibits an optical effect such as a colour change, change in polarisation or change in reflectivity, when subjected to a said field or a change in a said field. The filament or fibre may readily be woven into eg. a fabric or a garment, using conventional textile processing machinery.
摘要:
A conversion element (3) comprising a ceramic material (31) with a multiplicity of pores (32) provided for at least the partial absorption of at least one primary radiation (52) and for transforming the primary radiation (52) into at least one secondary radiation (53), wherein the conversion element (3) has a density greater than or equal to 97% of the theoretical solid-state density of the ceramic material (31), and the pores (32) in the conversion element (3) have a diameter substantially between 200 nm and 5000 nm.
摘要:
An illumination device includes an active layer, such as a blue LED, covered with a first luminescent ceramic converter layer and partially covered with a second luminescent ceramic converter layer. The first and second conversion layers convert primary photons emitted by the active layer into photons of different, longer wavelengths. The color point of the illumination device can be adjusted by adjusting the relative size of the second conversion layer.
摘要:
An organic electroluminescent light source has at least one substrate and layers that are arranged on the substrate. The layers include electrodes of which at least one electrode is transparent and one acts as an anode and one as a cathode, and at least one organic electroluminescent layer that is arranged between the electrodes. The organic electroluminescent layer has regions that emit blue light and/or green light, and at least one phosphor layer that is arranged in the beam path of the light leaving the organic electroluminescent light source and that partly covers the electroluminescent layer.
摘要:
An electroluminescent device comprising at least one electroluminescent light source (2) with an electroluminescent layer (21) for emitting a primary radiation with an emission characteristic around a mean emission direction (5), and at least one light-converting element (3) for converting at least part of the primary radiation into a secondary radiation, wherein the shape of the light-converting element (3) is adapted to the emission characteristic of the electroluminescent light source (2) so as to generate a defined correlated color temperature as a function of a viewing angle (10).
摘要:
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.
摘要:
An electroluminescent light source includes a layer structure comprising a first sublayer structure comprising at least one electrode as anode, one electrode as cathode and an electroluminescent layer located therebetween for emitting light, a second sublayer structure which adjoins the electrode provided for transmission, said second sublayer structure consisting of at least one semitransparent layer for partially reflecting the light, and a third sublayer structure which, as seen in the emission direction of the light, is arranged behind the second sublayer structure, said third sublayer structure comprising at least one layer having particles for absorbing some of the light at wavelengths below a threshold wavelength, for emitting light at wavelengths above the threshold wavelength, and for scattering the non-absorbed light.
摘要:
A light emitting device with a light source to emit primary light and a light conversion layer to convert at least a part of the primary light into secondary light includes a CaAlSiN light converting material with a transmissivity of ≧10% to ≦80% for a light in the wavelength range from ≧580 to ≦1000 nm.