Patents by Inventor Robert P. Bourdelais
Robert P. Bourdelais has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8177381Abstract: The present invention provides an integrated backlight illumination assembly for an LCD display comprising, a plurality of solid state light sources for providing a point light source and a plurality of light guide films having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light sources to a uniform plane of light. The invention further provides at least one polymer diffusion bar covering said solid state light sources and spacer collar rings comprising an optical spacer, collar section and an anchoring feature, wherein the spacer collar rings are located around a perimeter of the diffusion bar.Type: GrantFiled: March 30, 2010Date of Patent: May 15, 2012Assignee: SKC Haas Display Films Co., Ltd.Inventors: Qi Hong, Herong Lei, Robert P. Bourdelais
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Patent number: 8062734Abstract: Disclosed is an article comprising a layer of nonconductive polymeric material comprising a plurality of integral polymer conduit channels containing a substantially transparent conductive material.Type: GrantFiled: April 28, 2003Date of Patent: November 22, 2011Assignee: Eastman Kodak CompanyInventors: Cheryl J. Kaminsky, Robert P. Bourdelais, Debasis Majumdar
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Patent number: 8047669Abstract: A uniform light source having a substrate for providing structural and functional support to the assembly. A bottom reflector provided on the substrate. A plurality of solid state light sources provided in an opening of the bottom reflector for providing a point light source. A plurality of light films and having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light source to a uniform plane of light; a joining clip comprising a top capping portion and a bottom support portion, the bottom support portion being aligned perpendicular to the top capping portion and having a height sufficient to house the plurality of light films. A top diffuser for diffusing the uniform plane of light. The plurality of light films has a thickness between 0.1 mm to 1.0 mm. In addition, the joining clip further comprises a light diffusion means.Type: GrantFiled: July 31, 2009Date of Patent: November 1, 2011Assignee: SKC Haas Display Films Co., Ltd.Inventors: Robert P. Bourdelais, John C. Brewer, Qi Hong, Charles M. Rankin, Jr., Leonard S. Gates
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Publication number: 20110242845Abstract: The present invention provides an integrated backlight illumination assembly for an LCD display comprising: a plurality of solid state light sources for providing a point light source; a plurality of light guide films having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light sources to a uniform plane of light, a light redirecting bar located between opposing light guide films, the light redirecting bar comprising a top capping portion and a bottom portion, the bottom portion being aligned perpendicular to the top capping portion wherein said bottom portion has at least one light redirecting feature.Type: ApplicationFiled: March 30, 2010Publication date: October 6, 2011Applicant: SKC Haas Display Films Co., Ltd.Inventors: Qi HONG, Robert P. Bourdelais, William McKenna
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Publication number: 20110242838Abstract: The present invention provides an integrated backlight illumination assembly for an LCD display comprising, a plurality of solid state light sources for providing a point light source and a plurality of light guide films having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light sources to a uniform plane of light. The invention further provides at least one polymer diffusion bar covering said solid state light sources and spacer collar rings comprising an optical spacer, collar section and an anchoring feature, wherein the spacer collar rings are located around a perimeter of the diffusion bar.Type: ApplicationFiled: March 30, 2010Publication date: October 6, 2011Applicant: SKC Haas Display Films Co., Ltd.Inventors: Qi HONG, Herong Lei, Robert P. Bourdelais
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Publication number: 20110026273Abstract: A uniform light source having a substrate for providing structural and functional support to the assembly. A bottom reflector provided on the substrate. A plurality of solid state light sources provided in an opening of the bottom reflector for providing a point light source. A plurality of light films and having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light source to a uniform plane of light; a joining clip comprising a top capping portion and a bottom support portion, the bottom support portion being aligned perpendicular to the top capping portion and having a height sufficient to house the plurality of light films. A top diffuser for diffusing the uniform plane of light. The plurality of light films has a thickness between 0.1 mm to 1.0 mm.Type: ApplicationFiled: July 31, 2009Publication date: February 3, 2011Applicant: SKC Haas Display Films Co., Ltd.Inventors: Robert P. Bourdelais, John C. Brewer, Qi Hong, Charles M. Rankin, JR., Leonard S. Gates
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Publication number: 20110026274Abstract: A uniform light source having a substrate for providing structural and functional support to the assembly. A bottom reflector provided on the substrate. A plurality of solid state light sources provided in an opening of the bottom reflector for providing a point light source. A plurality of light films and having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light source to a uniform plane of light; a joining clip comprising a top capping portion and a bottom support portion, the bottom support portion being aligned perpendicular to the top capping portion and having a height sufficient to house the plurality of light films. A top diffuser for diffusing the uniform plane of light. The plurality of light films has a thickness between 0.1 mm to 1.0 mm. In addition, the joining clip further comprises a light diffusion means.Type: ApplicationFiled: July 31, 2009Publication date: February 3, 2011Applicant: SKC Haas Display Films Co., Ltd.Inventors: Robert P. Bourdelais, John C. Brewer, Qi Hong, Charles M. Rankin, JR., Leonard S. Gates
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Patent number: 7845826Abstract: The present invention provides a multilayered integrated backlight illumination assembly for an LCD display comprising a substrate for providing structural and functional support to the assembly, a bottom reflector provided on the substrate and a plurality of solid state light sources provided in an opening of the bottom reflector for providing a point light source. The invention further provides a plurality of primary light films having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light source to a uniform plane of light, a plurality of secondary light films having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light source to a uniform plane of light and a binding means for binding the primary and secondary light films together.Type: GrantFiled: January 15, 2008Date of Patent: December 7, 2010Assignee: SKC Haas Display Films Co., Ltd.Inventors: Peter T. Aylward, John C. Brewer, Robert P. Bourdelais, Qi Hong
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Patent number: 7780330Abstract: A solid waveguide comprises opposite TIR surfaces further comprising: a) at least one light input surface for coupling light from a solid state light source; b) at least one mixing section; c) at least one light emitting surface; and d) a desired pattern of light redirecting features located on one TIR surface or between the TIR surfaces.Type: GrantFiled: May 16, 2007Date of Patent: August 24, 2010Assignee: Rohm and Haas Electronics Materials LLCInventors: Peter T. Aylward, Robert P. Bourdelais, Qi Hong, John M. Palmeri, Leonard S. Gates
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Patent number: 7643218Abstract: The invention relates to a light redirecting film comprising a thin optically transparent substrate having opposite sides, one side of the substrate substantially covered by elongated individual optical elements whose longest dimensions are substantially aligned in a lengthwise direction, wherein the shape of at least some of the optical elements have a visually significant difference, and wherein the layout of optical element shapes and locations is such that objectionable patterns are not visible in the film under standard LCD backlight viewing conditions.Type: GrantFiled: August 31, 2006Date of Patent: January 5, 2010Assignee: SKC Haas Display Films Co., Ltd.Inventors: Randall H. Wilson, Paul J. Guiguizian, Robert P. Bourdelais
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Publication number: 20090180282Abstract: The present invention provides a multilayered integrated backlight illumination assembly for an LCD display comprising a substrate for providing structural and functional support to the assembly, a bottom reflector provided on the substrate and a plurality of solid state light sources provided in an opening of the bottom reflector for providing a point light source. The invention further provides a plurality of primary light films having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light source to a uniform plane of light, a plurality of secondary light films having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light source to a uniform plane of light and a binding means for binding the primary and secondary light films together.Type: ApplicationFiled: January 15, 2008Publication date: July 16, 2009Applicant: Rohm and Haas Denmark Finance A/SInventors: Peter T. Aylward, John C. Brewer, Robert P. Bourdelais, Qi Hong
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Patent number: 7548676Abstract: An optical converter and method for making same is provided. In accordance with the method, the present invention provides an improved apparatus and methods for fabrication of an optical converter. In one aspect of the invention a method for forming an optical converter is provided. In accordance with this method at least two light guide ribbon structures are provided, with each light guide ribbon structure formed by the steps of roll molding a substrate having a pattern of channels with each channel extending from an input edge to an output edge of said substrate and forming light guides extending along each of the channels from the input edge to the output edge. The at least two light guide ribbon structures are assembled in a stacked arrangement.Type: GrantFiled: December 15, 2005Date of Patent: June 16, 2009Assignee: Eastman Kodak CompanyInventors: Roger S. Kerr, Ronald S. Cok, David Kessler, Cheryl J. Kaminsky, Robert P. Bourdelais
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Patent number: 7543974Abstract: A display comprises a light source and a light redirecting polymeric film containing a structured surface on at least one side of the film and bearing a polymeric coating over at least part of the structured surface wherein the coating exhibits a variable thickness.Type: GrantFiled: March 6, 2007Date of Patent: June 9, 2009Assignee: SKC Haas Display Films Co., Ltd.Inventors: Robert P. Bourdelais, John C. Brewer, Charles M. Rankin, Jr., Esther M. Betancourt
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Publication number: 20090122227Abstract: The present invention provides an integrated backlight illumination assembly for an LCD display comprising, a substrate for providing structural and functional support to the assembly, a bottom reflector provided on the substrate and a plurality of solid state light sources provided in an opening of the bottom reflector for providing a point light source. Further, the invention provides a plurality of light films with a thickness between 10 microns to 3mm and having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light source to a uniform plane of light and a top diffuser for diffusing the uniform plane of light, and wherein the plurality of light films has a thickness between 0.1 mm to 1.0 mm and a bending stiffness between 50 to 1200 millinewtons.Type: ApplicationFiled: November 8, 2007Publication date: May 14, 2009Applicant: Rohm and Haas Denmark Finance A/SInventors: Qi Hong, Peter T. Aylward, Robert P. Bourdelais
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Patent number: 7530726Abstract: The invention relates to a display comprising a light source and a light redirecting polymeric film containing a structured surface on at least one side of the film and bearing a discontinuous population of adherent beads bonded to the structured surface.Type: GrantFiled: March 6, 2007Date of Patent: May 12, 2009Assignee: SKC Haas Display Films Co., Ltd.Inventors: John C. Brewer, Charles M. Rankin, Jr., Robert P. Bourdelais, Esther M. Betancourt
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Patent number: 7530721Abstract: A backlight device for a display comprising (1) a side-lit light source, (2) a light guide plate and (3) a turning film comprising a light entry and a light exit surface comprising lenticular elements on the exit surface and prismatic structures on the entry surface, wherein the average values of the parameters of the features and the thickness of the film are selected to provide a peak output angle of ±10° from normal to the light exit surface of the light guide plate and an optical gain of at least 1.25. Also disclosed are methods of making the turning film and a display incorporating the backlight.Type: GrantFiled: April 18, 2007Date of Patent: May 12, 2009Assignee: SKC Haas Display Films Co., Ltd.Inventors: Xiang-Dong Mi, Richard D. Bomba, Robert P. Bourdelais, Michael L. Ferranti, Jehuda Greener, Louis P. Harasta, Jr., Herong Lei, Stephen C. Meissner, Steven J. Neerbasch, Robert L. Walton, John M. Palmeri, Tomohiro Ishikawa
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Patent number: 7507012Abstract: A backlight apparatus for directing light toward a display panel and the resulting display device comprises a solid lightguide comprising opposite TIR surfaces, containing a desired pattern of light redirecting surface features located between the TIR surfaces and interrupting one of the TIR surfaces, the features having a refractive index differing from that of the solid material of the light guide. Such an apparatus provides a more even light distribution to the display.Type: GrantFiled: May 16, 2007Date of Patent: March 24, 2009Assignee: Rohm and Haas Denmark Finance A/SInventors: Peter T. Aylward, Robert P. Bourdelais, Qi Hong
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Patent number: 7465163Abstract: The invention relates to an apparatus and method of making a solid film. Viscous material (163) is input into a nip between a patterned roller (165) and a belt (167). The nip between the patterned roller (165) and belt (167) is facilitated by a compliant roller (169). Accordingly, a film may be produced that has discrete optical elements and a smooth backside.Type: GrantFiled: June 15, 2004Date of Patent: December 16, 2008Assignee: Rohm and Haas Denmark Finance A/SInventors: John E. Benson, Robert P. Bourdelais, Cheryl J. Brickey
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Publication number: 20080291668Abstract: A backlight for a display comprises a reflector box containing reflective areas and aperture areas and mini lightbars located in a region below the reflector box and arranged to provide light through the apertures.Type: ApplicationFiled: May 21, 2008Publication date: November 27, 2008Applicant: Rohm and Haas Denmark Finance A/SInventors: Peter T. Aylward, Qi Hong, Robert P. Bourdelais
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Publication number: 20080285255Abstract: The invention relates to a polymeric optical film comprising a base provided with integral optical features on at least one side, wherein the features have two or more sides that form a ridge line, wherein the optical film has light leakage through crossed polarizers of less than 1.0%.Type: ApplicationFiled: July 11, 2008Publication date: November 20, 2008Applicant: Rohm and Haas Denmark Finance A/SInventors: Robert P. Bourdelais, Cheryl J. Brickey, Steven J. Neerbasch