摘要:
The method for positioning an array with periodic structures, for forming an image thereon, comprises the following steps: (a) providing a first beam of light by a first light source; (b) passing this first beam of light through the array; (c) forming a light line corresponding to the first light source with the first beam of light after the first beam of light passes through the array such that the light line is perpendicular to long axes of the periodic structures; (d) rotating the array to rotate the light line across a first detector; (e) producing a signal when the light line sweeps across the first detector; (f) determining when maximum signal is produced by the first detector; and (g) rotating the array to a proper position based on angular position corresponding to this maximum signal. According to an another embodiment of the present invention, an apparatus for locating an array having a periodic structure comprises: (i) a stage rotatably supporting the array; (ii) a first light source, providing a first alignment light beam, the first light source being located to project light onto one side of the array; (iii) a coarse alignment detector located on another side of the array; and (iv) an alignment lens located between the array and the course alignment detector, the alignment lens and the array, together, providing a light line corresponding to the first light source in a plane where the course alignment detector is located, wherein rotation of said array produces a corresponding rotation of the light line in the plane.
摘要:
A method for positioning an array with periodic structures, for forming an image thereon, comprises the following steps: (i) producing a light beam along fast-scan axis; (ii) translating the array in a direction substantially perpendicular to the fast-scan axis; (iii) detecting the light beam alternatively by a pair of detectors, the detectors being located near opposite edges of the array along the fast-scan axis; (iv) providing substantially periodic signals by the pair of detectors in accordance with their detection of the light beam; (v) determining relative phases of the periodic signals, the relative phases corresponding to misalignment of the array; (vi) sensing phases of the periodic signals and rotating the array such that the long axes of the periodic structures are substantially parallel to the fast-scan axis. According to another aspect of the present invention, an apparatus for locating an array having a periodic structure, comprises: (i) a stage rotatably supporting the array; (ii) a light source providing a light beam; (iii) a scanner scanning the light beam across the array; (iv) two detectors, the two detectors alternatively detecting the scanned light beam while the array is translated in a slow scan direction, each of the two detectors providing periodic signals in response to the detection; (v) an analyzer determining relative phases of the periodic signals from each of the two detectors, the analyzer outputting signals based on the relative phases, the signals being capable of activating rotational motion of the stage until the array is in proper orientation.
摘要:
A system for engraving a flexographic relief member includes a laser scanning apparatus providing a focused radiation beam. The flexographic relief member includes a laser engraveable flexographic member; a thin engraveable control layer on top of the flexographic member; and wherein the engraveable control layer has an engraving sensitivity lower than the flexographic member.
摘要:
The electrographic printing of one or more multi-channeled layers having a particular pattern by electrographic techniques that produces a three-dimensional optical waveguide electrographically. Such electrographic printing comprises the steps of forming a desired print image, electrographically, on a receiver member utilizing predetermined sized marking particles; and, where desired, forming one or more final multi-channeled layers utilizing marking particles of a predetermined size or size distribution.
摘要:
A method of preparing a flexographic printing member includes forming a relief image that consists of both fine-featured regions and coarse-featured regions; and leveling a top most surface of at least one of the coarse-featured regions by means of laser engravings.
摘要:
A method of preparing a flexographic printing member includes forming a relief image that consists of both fine-featured regions and coarse-featured regions; and leveling a top most surface of at least one of the coarse-featured regions by means of laser engravings.
摘要:
A method of making an inverted bottom-emitting OLED device, comprising: providing a substrate; providing one or more first electrodes driven by n-type transistors on the substrate; providing an electron-transporting layer over the substrate and first electrode(s), wherein the electron-transporting layer comprises an n-type inorganic semiconductive material with a resistivity in the range of 1 to 105 ohm-cm and a bandgap greater than 2.5 eV; providing an organic light-emitting layer over the electron-transporting layer; providing a hole-transporting layer over the organic emitting layer; and providing a second electrode over the hole-transporting layer.
摘要:
A chemical vapor deposition method such as an atomic-layer-deposition method for forming a patterned thin film includes applying a deposition inhibitor material to a substrate. The deposition inhibitor material is a hydrophilic polymer that is soluble in an aqueous solution comprising at least 50 weight % water and has an acid content of less than 2.5 meq/g of polymer. The deposition inhibitor material is patterned simultaneously or subsequently to its application to the substrate, to provide selected areas of the substrate effectively not having the deposition inhibitor material. A thin film is substantially deposited only in the selected areas of the substrate not having the deposition inhibitor material.
摘要:
A method of making an inverted bottom-emitting OLED device, comprising: providing a substrate; providing one or more first electrodes driven by n-type transistors on the substrate; providing an electron-transporting layer over the substrate and first electrode(s), wherein the electron-transporting layer comprises an n-type inorganic semiconductive material with a resistivity in the range of 1 to 105 ohm-cm and a bandgap greater than 2.5 eV; providing an organic light-emitting layer over the electron-transporting layer; providing a hole-transporting layer over the organic emitting layer; and providing a second electrode over the hole-transporting layer.
摘要:
An electroluminescent (EL) device having an LED formed on a substrate with at least two electrodes formed over the substrate, and an EL unit formed between the electrodes. At least one of the electrodes is transparent. At least one of the electrodes is patterned to define independently controllable light-emitting areas. A cover is formed over the LED. The cover or substrate is transparent. A light-scattering layer is formed between the cover and substrate for scattering light. A low-index element, having an optical index lower than other optical indices, is formed between the scattering layer and the transparent cover or substrate. Additionally, a contrast-enhancement layer includes alternating light-absorbing portions and light-transmissive portions formed in the layer located between the light-scattering layer and the transparent substrate or cover through which light is emitted, wherein the light-absorbing portions and light-transmissive portions are located in each light-emitting area.