Abstract: Improved apparatus and methods for spatial light modulation are disclosed which utilize optical cavities having both front and rear reflective surfaces. Light-transmissive regions are formed in the front reflective surface for spatially modulating light.
Type:
Grant
Filed:
November 6, 2006
Date of Patent:
November 17, 2009
Assignee:
Pixtronix, Inc.
Inventors:
Nesbitt W. Hagood, IV, Richard S. Payne, Jasper Lodewyk Steyn
Abstract: Improved apparatus and methods for displays are disclosed that utilize light concentration array between mechanical light modulators and the viewing surface of the display. The light concentration array includes an array of optical elements that concentrate light on respective ones of the light modulators to maximize the contrast ratio and off axis viewing of the display.
Abstract: Improved apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors.
Abstract: Display devices incorporating shutter-based light modulators are disclosed along with methods of manufacturing such devices. The methods are compatible with thin-film manufacturing processes known in the art and result in displays having lower power-consumption.
Type:
Application
Filed:
June 11, 2009
Publication date:
October 1, 2009
Applicant:
Pixtronix, Inc.
Inventors:
Nesbitt W. Hagood, IV, Jasper Lodewyk Steyn, Timothy J. Brosnihan, Jignesh Gandhi, John J. Fijol, Richard S. Payne, Roger Barton
Abstract: The invention relates to a spatial light modulator including a substrate having a surface and a modulation assembly coupled to the substrate including a modulation element and a compliant beam. The modulation assembly is configured to limit the bending of the compliant beam towards an opposing surface that would otherwise be caused by inherent stresses within the compliant beam. The invention also relates to a method of manufacturing a spatial light modulator including the steps of forming and releasing a modulation assembly that has a modulation element and a compliant beam formed in a pre-release position to have an intended inherent stress state. As a result of the stress state in the compliant beam, upon release of the compliant beam, the compliant beam bends into a rest position which is different than the pre-release position, where the rest position is based in part on the intended inherent stress state.
Type:
Application
Filed:
February 12, 2009
Publication date:
August 6, 2009
Applicant:
Pixtronix, Inc.
Inventors:
Jasper Lodewyk Steyn, Timothy J. Brosnihan, Joyce H. Wu, Mark B. Andersson, Richard S. Payne, John J. Fijol, Roger W. Barton, Nesbitt W. Hagood
Abstract: The invention relates to methods of manufacturing display devices including the steps of forming a plurality of thin-film components and forming a plurality of mechanical light modulators on top of the thin-film components, where the plurality of mechanical light modulators include a layer of amorphous silicon.
Type:
Grant
Filed:
October 1, 2007
Date of Patent:
June 23, 2009
Assignee:
Pixtronix, Inc.
Inventors:
Nesbitt W. Hagood, Jasper Lodewyk Steyn, Richard S. Payne
Abstract: The invention relates to methods and apparatus for forming a display apparatus. According to one aspect of the invention, the display apparatus includes a first substrate having an aperture layer formed thereon, a light guide for guiding light towards the aperture layer, a plurality of MEMS light modulators for modulating light passing through the aperture layer from the light guide, and a spacer substantially surrounding the light guide for keeping the light guide and the first substrate a predetermined distance apart from one another, thereby forming a gap between the first substrate and the light guide. Alternatively or in addition, the first substrate may have a control matrix formed thereon.
Type:
Application
Filed:
October 19, 2007
Publication date:
April 23, 2009
Applicant:
Pixtronix, Inc.
Inventors:
John J. Fijol, Jignesh Gandhi, Mark J. Shufelt
Abstract: This invention relates to display apparatuses having an array of light modulators and a plurality of apertures formed in a layer of material. Each light modulator corresponds to one or more apertures and has a portion which may overlap a corresponding aperture, where the size of the overlap is proportional to a distance between the array and the layer of material.
Type:
Grant
Filed:
January 19, 2007
Date of Patent:
March 10, 2009
Assignee:
Pixtronix, Inc.
Inventors:
Nesbitt W. Hagood, IV, Jasper Lodewyk Steyn, Richard S. Payne, Jignesh Gandhi, John J. Fijol, Roger W. Barton
Abstract: This invention relates to display apparatuses having an array of light modulators for transmissively displaying an image and a reflective aperture layer defining a plurality of apertures, for reflecting light not passing through apertures in the reflective aperture layer away from the array. The reflective aperture layer is formed on a first substrate and positioned adjacent the array. The image is formed by modulating light passing through the apertures in the reflective aperture layer. A light guide, separated from the first substrate by a gap, may guide light towards the reflective aperture layer. A layer of low-refractive index material may be positioned on a side of the reflective aperture layer opposite the array.
Abstract: Improved apparatus and methods for spatial light modulation are disclosed which utilize optical cavities having both front and rear reflective surfaces. Light-transmissive regions are formed in the front reflective surface for spatially modulating light.
Type:
Grant
Filed:
February 12, 2008
Date of Patent:
December 2, 2008
Assignee:
Pixtronix, Inc.
Inventors:
Nesbitt W. Hagood, IV, Richard S. Payne, Jasper Lodewyk Steyn
Abstract: This invention relates to methods of manufacturing fluid-filled MEMS displays, where the fluid is sealed in the display assembly and substantially surrounds the moving components of the display to reduce the effects of stiction and to improve the optical and electromechanical performance of the display.
Type:
Application
Filed:
October 19, 2007
Publication date:
November 20, 2008
Applicant:
Pixtronix, Inc.
Inventors:
Nesbitt W. Hagood, Jasper Lodewyk Steyn, John J. Fijol
Abstract: This invention relates to display apparatuses having an array of light modulators and a plurality of spacers distributed within the interior of the array. The display apparatus may also include a reflective aperture layer disposed on a front facing surface of a substrate included in the display apparatus.
Type:
Application
Filed:
October 19, 2007
Publication date:
November 13, 2008
Applicant:
Pixtronix, Inc.
Inventors:
Nesbitt W. Hagood, Jasper Lodewyk Steyn, Richard S. Payne, Jignesh Gandhi, John J. Fijol, Roger W. Barton, Eugene E. Fike, III
Abstract: Display devices incorporating shutter-based light modulators are disclosed along with methods of manufacturing such devices. The methods are compatible with thin-film manufacturing processes known in the art and result in displays having lower power-consumption.
Type:
Grant
Filed:
February 23, 2006
Date of Patent:
July 29, 2008
Assignee:
Pixtronix, Inc.
Inventors:
Timothy J. Brosnihan, Nesbitt W. Hagood, IV, Jasper Lodewyk Steyn, Jignesh Gandhi, John J. Fijol, Richard S. Payne, Roger Barton
Abstract: The invention relates to methods and apparatus for forming images on a display utilizing a control matrix to control the movement of MEMs-based light modulators.
Abstract: Improved apparatus and methods for spatial light modulation are disclosed which utilize optical cavities having both front and rear reflective surfaces. Light-transmissive regions are formed in the front reflective surface for spatially modulating light.
Type:
Application
Filed:
March 17, 2008
Publication date:
July 3, 2008
Applicant:
Pixtronix, Inc.
Inventors:
Nesbitt W. Hagood, Jasper Lodewyk Steyn
Abstract: Display devices incorporating shutter-based light modulators are disclosed along with methods of manufacturing such devices. The methods are compatible with thin-film manufacturing processes known in the art and result in displays having lower power-consumption.
Type:
Application
Filed:
March 10, 2008
Publication date:
July 3, 2008
Applicant:
Pixtronix, Inc.
Inventors:
Nesbitt W. Hagood, Jasper Lodewyk Steyn, Timothy J. Brosnihan, Jignesh Gandhi, John J. Fijol, Richard S. Payne, Roger Barton
Abstract: Improved apparatus and methods for spatial light modulation are disclosed which utilize optical cavities having both front and rear reflective surfaces. Light-transmissive regions are formed in the front reflective surface for spatially modulating light.
Type:
Application
Filed:
February 12, 2008
Publication date:
June 26, 2008
Applicant:
Pixtronix, Inc.
Inventors:
Nesbitt W. Hagood, IV, Richard S. Payne, Jasper Lodewyk Steyn
Abstract: Improved apparatus and methods for spatial light modulation are disclosed which utilize optical cavities having both front and rear reflective surfaces. Light-transmissive regions are formed in the front reflective surface for spatially modulating light.
Abstract: The invention relates to methods of manufacturing display devices which include the steps of depositing a layer of a dielectric material directly on a substantially transparent substrate, depositing a layer of metal directly on top of the dielectric material, forming a plurality of apertures in the layer of metal, forming a control matrix on top of the metal layer, and forming a plurality of light-modulating shutter assemblies on top of and in electrical communication with the control matrix such that the control matrix controls the light modulation functionality of the plurality of shutter assemblies.
Type:
Application
Filed:
October 4, 2007
Publication date:
June 19, 2008
Applicant:
Pixtronix, Inc.
Inventors:
Nesbitt W. Hagood, Jasper Lodewyk Steyn, Roger W. Barton, John J. Fijol, Jignesh Gandhi
Abstract: The invention relates to methods and apparatus for forming images on a display utilizing a control matrix to control the movement of MEMs-based light modulators.
Type:
Application
Filed:
October 29, 2007
Publication date:
June 5, 2008
Applicant:
Pixtronix, Inc.
Inventors:
Nesbitt W. Hagood, Stephen R. Lewis, Abraham McAllister, Roger W. Barton