Abstract: A system for illuminating a reflective display or other material from a planar front device and a method of manufacture thereof. The system includes a light guide plate that conducts light from an edge light source across the face of a reflective display. Micro lenses are formed on the inner or outer surface of the light guide and direct the light conducted in the light guide toward the display. A stepped index layer is formed on the surface of light guide plate containing the micro lenses. The stepped index layer has an index of refraction lower than an index of refraction of the light guide plate to assist in the total internal reflection of light injected into the light guide plate. A top layer protective coat or touch screen can be laminated to the outside of the light guide plate.
Type:
Application
Filed:
August 17, 2012
Publication date:
March 14, 2013
Applicant:
BARNESANDNOBLE.COM LLC
Inventors:
Charles Neugebauer, Jason Wong, Sam Niansheng Qiu, David Klawon
Abstract: A system for illuminating a reflective display or other material from a planar front device and a method of manufacture thereof. The system includes a light guide plate that conducts light from an edge light source across the face of a reflective display. Micro scattering features are formed on an outer surface of the light guide, farthest from the reflective display or material. A stepped index layer is formed on the surface of light guide plate containing the micro scattering features. The stepped index layer has an index of refraction lower than an index of refraction of the light guide plate to assist in the total internal reflection of light injected into the light guide plate. The micro scattering features, light reflecting areas, redirect luminous flux toward the display. In one embodiment, the micro scattering features are formed as white dots on the light guide plate.
Abstract: A method for processing a search query according to one embodiment includes receiving a search query containing terms; combining at least some consecutive terms in the search query to create biwords; looking up at least some of the terms and biwords in a search index for identifying sections of documents containing the at least some of the terms and/or biwords; generating a content score for each of the identified sections based at least in part on a number of the terms and biwords found in the sections of each document, wherein the biwords are given a higher priority than matched terms, wherein the priority affects the content score; and selecting and outputting an indicator of at least one of the sections, or portion thereof, based at least in part on the content score.
Abstract: A system, method and computer program product for processing a search query includes receiving a search query containing one or more terms; processing the query to add one or more bi-words as terms to the query; searching a search index embodied on a non-transitory computer-readable storage medium having product identifiers and logical parts of the product identifiers indexed into different fields in the index; generating a score based on at least some of the terms matching the product identifiers and the individual logical parts of the product identifiers in the different fields in the index, wherein bi-words are weighted higher than the terms having only one word and individual terms are weighted higher when matching in the product identifier fields of the index; and selecting and outputting an indicator of product identifiers ranked by their scores.
Abstract: A method for processing a search query according to one embodiment includes receiving a search query containing terms; looking up at least some of the terms in a search index for identifying sections of documents containing the at least some of the terms; generating a content score for each of the documents based at least in part on a number of keywords found in the sections of each document; looking up at least some of the terms in the search index for attempting to match one or more of the terms to context information in the search index, the context information being associated with at least one of the documents; generating a context score based at least in part on the matching of terms to the context information; generating a document score for each of the documents based at least in part on the content score and the context score; and outputting an indicator of at least one of the documents, or portion thereof, for the at least one of the documents having a higher document score relative to other of the