The present invention relates to a nanoparticle comprising self-assembled crosslinked, amphiphilic block copolymers and at least one immobilized dye, wherein the self-assembled, crosslinked, amphiphilic block copolymers comprise a hydrophilic block and a hydrophobic block, wherein the self-assembled, crosslinked, amphiphilic block copolymers are self-assembled to form a core of the nanoparticle comprising a hydrophobic block, wherein the hydrophobic block is derived from at least one pendant multifunctional crosslinked alkoxy silane or amino silane moiety, and an exterior of the nanoparticle comprising a hydrophilic block, and wherein the immobilized dye is immobilized in the core.
NEGATIVE DISPERSION RETARDATION PLATE AND ACHROMATIC CIRCULAR POLARIZER
申请人:Geivandov Arthur
公开号:US20120113380A1
公开(公告)日:2012-05-10
The present invention relates generally to the field of organic chemistry and particularly to the nematic lyotropic liquid crystal solution and negative dispersion retardation plate for application in 3D liquid crystal displays. The negative dispersion retardation plate comprises a substrate, and at least one optically anisotropic retardation layer comprising a multi-component guest-host composition coated onto the substrate.
Light source with organic layer and photoluminsecent layer
申请人:GENERAL ELECTRIC COMPANY
公开号:EP1121000A2
公开(公告)日:2001-08-01
A light source (200) comprises an organic light emitting device (100) which emits radiation having a first spectrum and a phosphor layer (115) which absorbs a portion of the light emitted by the organic light emitting layer (100) and which emits light having a second spectrum. The phosphor layer (115) typically absorbs less than all of the light emitted by the organic light emitting layer (100) and typically covers the entire organic light emitting device (100). The light emitted by the organic light emitting layer (100) is mixed with the light emitted by the phosphor layer (115) to produce light having a third spectrum.. Exemplary embodiments of the invention provide advantages over known devices For example, because a phosphor layer (115) is provided, the light emitted from the organic light emitting device (100) is scattered, which provides improved uniformity in light output over the area of the light source (200). Also, because most phosphors are relatively stable over time, the light source (200) has good color stability over time.
The invention relates to a luminescent display comprising a first electrode, a second electrode, an organic light emitting layer disposed between the first and second electrodes, and a luminescent material which receives light from the organic light emitting layer and converts the light to a different wavelength, wherein the first and second electrodes together define an overlap region in which the organic light emitting layer is activated to emit light, and the luminescent material is disposed in a portion of the overlap region. The invention also relates to a method comprising the steps of creating an image and printing the image on a light emitting device comprising an organic light emitting layer after the light emitting device has been formed. The image may be created, for example on a personal computer, and printed with an inkjet printer. The image may be printed in phosphors which emit light of one wavelength upon absorbing light of a different wavelength from the organic light emitting layer.
Various embodiments of the invention allow customized luminescent displays to be easily fabricated by end users by applying a phosphor pattern to a preformed, encapsulated light emitting device.
Polycarbonate compositions with improved molding capability
申请人:SABIC Innovative Plastics IP B.V.
公开号:EP2292693A1
公开(公告)日:2011-03-09
A thermoplastic composition comprising a polycarbonate, a polycarbonate-polysiloxane copolymer, an impact modifier composition comprising ABS or BABS, a second impact modifier different from BABS or ABS, and an aromatic vinyl copolymer is disclosed. The thermoplastic composition has improved molding capability.