Patent application number | Description | Published |
20120170047 | SYSTEM AND METHOD FOR MEASURING A DISTANCE - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for measuring a distance. In one aspect, the method includes actuating or releasing an interferometric modulator having a first surface and a second surface and measuring a distance between the first and second surfaces at a plurality of times during the actuation or release. In another aspect, the method includes illuminating, with a first laser beam having a first wavelength and with a second laser beam having a second wavelength different from the first wavelength, an interferometric modulator having a distance between a first surface which is at least partially reflective and a second surface which is at least partially absorptive, measuring a first intensity of the first laser beam modulated by the interferometric modulator and a second intensity of the second laser beam modulated by the interferometric modulator, and determining the distance based on the measured intensities. | 07-05-2012 |
20130119489 | METHOD AND APPARATUS FOR WAFER-LEVEL SOLDER HERMETIC SEAL ENCAPSULATION OF MEMS DEVICES - A plurality of MEMS devices are formed on a substrate, a sacrificial layer is formed to cover each of the MEMS devices and a protective cap layer is formed on the sacrificial layer. A release hole is formed through the protective cap layer to the underlying sacrificial layer, and a releasing agent is introduced through the release hole to remove the sacrificial layer under the protective cap layer and expose a MEMS device. Optionally, the MEMS device can be released with the same releasing agent or, optionally, with a secondary releasing agent. The release hole is solder sealed, to form a hermetic seal of the MEMS device. Optionally, release holes are formed at a plurality of locations, each over a MEMS device and the releasing forms a plurality of hermetic sealed MEMS devices on the wafer substrate, which are singulated to form separate hermetically sealed MEMS devices. | 05-16-2013 |
20130135319 | INTERFEROMETRIC MODULATOR WITH DUAL ABSORBING LAYERS - This disclosure provides systems, methods and apparatus related to an electromechanical display device. In one aspect, an analog interferometric modulator includes a reflective display pixel having a reflector, and a movable first absorbing layer positionable at a distance d | 05-30-2013 |
20130194653 | ANALOG IMOD HAVING A COLOR NOTCH FILTER - This disclosure provides systems, methods and apparatus related to an electromechanical display device. In one aspect, an analog interferometric modulator (AIMOD) includes a reflective display pixel having a movable reflective layer and a stationary absorber layer, the reflective layer and absorber layer defining a cavity therebetween. A color notch filter may be employed to produce an improved white state. In some implementations, the color notch filter is positioned on a side of the substrate opposite the absorber layer. In some other implementations, the color notch filter is positioned between the substrate and the movable reflective layer. | 08-01-2013 |
20140118360 | THINFILM STACKS FOR LIGHT MODULATING DISPLAYS - This disclosure provides systems, methods and apparatus for absorption film stacks. In one aspect, the absorption film stack is an interferometric absorption film stack that, for a selected wavelength of light, reduces light reflected from a surface of the stack by setting up a standing wave within the stack of materials. In some implementations, an absorbing layer may be placed at the peak of the standing wave interference pattern. The absorbing layer can be implemented to absorb selected wavelengths of light and substantially reduce the amount of unwanted reflections. In some other implementations, a reflective surface may be formed on the surface of the stack opposite the absorbing layer. | 05-01-2014 |
20140118829 | SEE THROUGH NEAR-EYE DISPLAY - The various embodiments include a near-eye display having a transmissive display and a diffractive micro-lens array. The transmissive display may be positioned relative to the diffractive micro-lens array so that the distance between the transmissive display and the diffractive micro-lens array is be approximately equal to focal length of the diffractive micro-lens array. The transmissive display may also be positioned relative to the diffractive micro-lens array so that a percentage of light emitted from the transmissive display is diffracted by the micro-lens array and collimated into focus on a retina of a human eye. The transmissive display may be further positioned relative to the diffractive micro-lens array so that light from a real world scene passes through transparent portions of the transmissive display and is diffracted by the micro-lens array out of focus of the human eye. | 05-01-2014 |
20140198128 | DYNAMIC ZONE PLATE AUGMENTED VISION EYEGLASSES - A method, an apparatus, and a computer program product for modulating optics in a display are provided. An apparatus forms a plurality of zone plates in a liquid crystal using electric fields. Each zone plate has a center, and the centers are aligned along a first axis of the display. The apparatus moves the plurality of zone plates in a first direction along a second axis of the display different from the first axis of the display, while maintaining alignment of the centers of the plurality of zone plates along the first axis. Such movement is provided through repositioning of electric fields through the liquid crystal. | 07-17-2014 |
20140253611 | METHODS AND APPARATUS FOR COLOR RENDERING - Disclosed are methods and apparatus for rending colors in displays, such as adjustable interferometric modulation displays that can produce many colors with different sub-sets of primary colors. Received colors to be rendered are analyzed to determine when the colors to be rendered are within a predefined neutral region of a color space. Temporal primary colors may be generated to be used for rendering the received colors in a color space that are generated by temporal modulation using at least two temporal subframes to mix first and second primary colors of a display, such as white and black primaries. The temporal primary colors are used when rendering colors that lie within the predefined neutral region of the color space. When white and black primaries are used for temporal modulation, the produced grayscale temporal primaries are more robust than using two complementary colors, affording more robust neutral and near neutral colors. | 09-11-2014 |
20150070750 | OPTICAL FIBER ARRAY FOR ACHIEVING CONSTANT COLOR OFF-AXIS VIEWING - Some implementations described herein involve defining a viewing angle range, also referred to herein as a viewing cone. The viewing cone may be produced by an array of optical fibers on a display. The optical fiber array may include tapered optical fibers that are capable of increasing the amount of light transmitted through the optical fiber array. The optical fiber array may be a graded index optical fiber array, wherein the refractive index of the optical fiber cores varies along the axis of the optical fibers. | 03-12-2015 |