Patent application number | Description | Published |
20120062615 | SYSTEM AND METHOD OF UPDATING DRIVE SCHEME VOLTAGES - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for calibrating display arrays. In one aspect, a method of calibrating a display array includes determining a particular drive response characteristic and updating a particular drive scheme voltage between updates of image data on the display array. | 03-15-2012 |
20120092747 | DISPLAY HAVING AN EMBEDDED MICROLENS ARRAY - The present disclosure provides methods, systems, and apparatus for directing incident light toward central regions of interferometric modulator displays. In one aspect, a display includes an array of microlenses embedded in a substrate adjacent a first surface of the substrate. An array of light modulators can be disposed over the first surface of the substrate. A light modulator can be disposed over a corresponding microlens. The microlenses can converge or concentrate incident light onto central regions of the corresponding light modulators. The microlenses may include single-element lenses, compound lenses, and/or graded-index lenses. Various methods of manufacturing such displays are also disclosed. | 04-19-2012 |
20120098847 | SYSTEM AND METHOD FOR REDUCED RESOLUTION ADDRESSING - This disclosure provides systems, methods and apparatus including computer programs encoded on computer storage media for producing line multiplied images with better visual appearance. The line multiplying is shifted for one of the colors of the display with respect to at least one other color of the display. | 04-26-2012 |
20120235968 | METHOD AND APPARATUS FOR LINE TIME REDUCTION - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for reducing common line write time in a display. In one aspect, a common line write waveform shape is based at least in part on the distance a given common line is from a segment driver circuit. | 09-20-2012 |
20120235985 | SYSTEM AND METHOD OF UPDATING DRIVE SCHEME VOLTAGES - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for calibrating display arrays. In one aspect, a method of calibrating a display array includes determining a particular drive response characteristic and updating a particular drive scheme voltage between updates of image data on the display array. | 09-20-2012 |
20120236009 | INACTIVE DUMMY PIXELS - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for a display with inactive dummy pixels. A display apparatus may include subpixels having a first electrode layer and a second electrode layer. The first electrode layer of an edge subpixel may include an opening, which may be made large enough to prevent the edge subpixel from actuating. The size of the openings also may be selected to attain a desired overall reflectivity for an array of edge subpixels. For example, the size of the openings may be selected to make the reflectivity of an edge pixel array similar to the reflectivity of a routing area. | 09-20-2012 |
20120236042 | WHITE POINT TUNING FOR A DISPLAY - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for tuning the white point of a display device. In one aspect, a display device includes a set of display elements configured to output light and electronics configured to drive the display elements. Each display element can have an on-state where a reflective surface can be positioned at a distance from a partially reflective surface such that the display element can reflect incident light. Each distance can be dependent on a bias voltage. At least one of the bias voltages for the display elements can be non-zero in the on-state, and one or more of the bias voltages may be adjustable to control a white point of the display device. The electronics can be electrically connected to the display elements to provide the at least one non-zero bias voltage. | 09-20-2012 |
20120236049 | COLOR-DEPENDENT WRITE WAVEFORM TIMING - This disclosure provides systems, methods and apparatus including computer programs encoded on computer storage media, for driving a pixel of a display. In one aspect, a common driver may be configured to write data to different display elements in an array of display elements with different line times. By using different line times, a refresh rate of the display may be increased and the response of the display elements to the write waveform may be improved. | 09-20-2012 |
20120274666 | SYSTEM AND METHOD FOR TUNING MULTI-COLOR DISPLAYS - This disclosure provides systems, methods and apparatuses, including computer programs encoded on computer-readable storage media, for calibrating a display. In one aspect, a method of calibrating a display includes determining one or more array voltages and, based on the determined array voltages, determining one or more drive scheme voltages. The determined drive scheme voltages may include, for example, a single segment voltage applied to all of the display elements of the array, and multiple common voltages applies to multiple subsets of the display elements of the array. | 11-01-2012 |
20130046803 | DITHER-AWARE IMAGE CODING - This disclosure provides implementations of dither-aware image coding processes, devices, apparatus, and systems. In one aspect, a portion of received image data is selected. First spatial domain values in the selected portion of the image data are transformed to first transform domain coefficients. Second spatial domain values in a designated dither matrix are transformed to second transform domain coefficients. A ratio of each of the first transform domain coefficients to a respective second transform domain coefficient is determined. The first transform domain coefficients are selectively coded in accordance with the determined ratios to define coded first transform domain coefficients. A reverse transformation is performed to transform the coded first transform domain coefficients to third spatial domain values defining a coded portion of the image data. By way of example, transformations such as discreet cosine transforms or discreet wavelet transforms can be used. | 02-21-2013 |
20130100099 | ADAPTIVE LINE TIME TO INCREASE FRAME RATE - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for determining a line time for writing data to display elements on one or more common lines of an array of display elements. In one aspect, the line time is determined for writing data to a line of display elements based on the received image data to be written to the line of display elements. | 04-25-2013 |
20130100100 | METHOD AND DEVICE FOR REDUCING EFFECT OF POLARITY INVERSION IN DRIVING DISPLAY - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for reducing artifacts in an image generated by a display device. In one aspect, data is written to a display and a position of display elements is maintained based on the application of a bias voltage pattern. The bias voltage pattern includes alternating polarities along one dimension in a pattern having a first frequency spectrum, and alternating polarities along a second dimension in a pattern having a second frequency spectrum that is different than the first frequency spectrum. At least one of the first and second frequency spectrums may include a plurality of frequency components. | 04-25-2013 |
20130100107 | METHOD AND APPARATUS FOR MODEL BASED ERROR DIFFUSION TO REDUCE IMAGE ARTIFACTS ON AN ELECTRIC DISPLAY - This disclosure provides methods and apparatus, including computer programs encoded on computer storage media, for reducing visual aberrations on an electronic display. One aspect is a method of writing an input image data value to a display element in a electronic display. The method includes receiving an input image data value, and quantizing the image data value based on a threshold. The threshold may be modulated based on a voltage drive signal provided to the display element in the electronic display. The method may also write the quantized image data value to the display element. | 04-25-2013 |
20130100109 | METHOD AND DEVICE FOR REDUCING EFFECT OF POLARITY INVERSION IN DRIVING DISPLAY - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for reducing artifacts in an image generated by a display device. In one aspect, data is written to a display and a position of display elements is maintained based on the application of a hold voltage pattern. The hold voltage pattern includes alternating polarities along one dimension in a pattern, and alternating polarities along a second dimension in a pattern. The polarities of the first and second patterns may be switched in a manner that maintains a substantially constant magnitude voltage across each display element. | 04-25-2013 |
20130127881 | SYSTEMS, DEVICES, AND METHODS FOR DRIVING A DISPLAY - This disclosure provides systems, methods and apparatus for writing data to a display. The frame rate is improved by simultaneously and independently writing data to multiple common lines of the display. In some implementations, lines of common color are written simultaneously. In some implementations, more common lines of lower visual importance are written simultaneously than common lines of higher visual importance. In these implementations, colors of higher visual importance can be displayed at a higher resolution to maintain good image quality while still improving frame rate. Display element electrodes may be coupled along common lines in various ways to implement simultaneous writing to multiple common lines. | 05-23-2013 |
20130127926 | SYSTEMS, DEVICES, AND METHODS FOR DRIVING A DISPLAY - This disclosure provides systems, methods and apparatus for writing data to a display. The frame rate is improved by simultaneously and independently writing data to multiple common lines of the display. In some implementations, lines of common color are written simultaneously. In some implementations, more common lines of lower visual importance are written simultaneously than common lines of higher visual importance. In these implementations, colors of higher visual importance can be displayed at a higher resolution to maintain good image quality while still improving frame rate. Display element electrodes may be coupled along common lines in various ways to implement simultaneous writing to multiple common lines. | 05-23-2013 |
20130271438 | INTEGRATED AMBIENT LIGHT SENSOR - For a personal electronic device (PED) having a display, the display including a cover glass having a front surface and a back surface, the PED includes a driver circuit configured to send at least one signal to the display and an ambient light sensor (ALS). Each of the driver circuit and the ALS is disposed behind the back surface of the cover glass. The ALS and the driver circuit may reside on a single substrate, which is disposed adjacent to the back surface of the cover glass. The ALS may output signals to the driver circuit that are indicative of ambient light level and one or both of ambient light spectrum and ambient light direction. The driver circuit may be configured to automatically adjust, in response to the signals, one or both of a display color bias and a display luminescence. | 10-17-2013 |
20130307857 | USING A PIEZO-ELECTRIC LAYER TO MITIGATE STICTION OF A MOVABLE ELEMENT - This disclosure provides systems, methods and apparatus for mitigating or reducing stiction in electromechanical systems devices. The systems and methods described herein include a piezo-electric layer disposed over at least a portion of the deformable region of the electromechanical systems devices. To reduce or mitigate stiction, a restorative mechanical force is generated by reverse piezo-electric effect to return the deformable region of the electromechanical systems devices to the un-deformed state. | 11-21-2013 |
20130314449 | DISPLAY WITH SELECTIVE LINE UPDATING AND POLARITY INVERSION - Techniques are disclosed for updating an array of display elements of an electronic display. The electronic display, which may be an interferometric modulator (IMOD) display, includes an array of display elements that is updated, at a frame update rate, on a frame by frame basis. Each frame includes data to be written to a plurality of pixel rows, each pixel row including at least a respective first display element line (DEL) of a first color and a respective second DEL of a second color. A processor compares display data for each pixel row in a first frame with display data for a corresponding pixel row in a comparison frame, and updates only selected DEL's based on the comparison. A polarity of a bias voltage of a subset of DEL's in the display, is periodically inverted, the subset of DEL's being substantially fewer than all of the DEL's. | 11-28-2013 |
20130321380 | SYSTEM AND METHOD OF SENSING ACTUATION AND RELEASE VOLTAGES OF INTERFEROMETRIC MODULATORS - This disclosure provides methods and apparatus for calibrating display arrays. In one aspect, a method of calibrating a display array includes determining a particular drive response characteristic and updating a particular drive scheme voltage between updates of image data on the display array. The drive response characteristic may be determined by applying a ramped voltage to a line of the array and detecting a current pulse due to a capacitance change on the line. The drive response characteristic can be determined based on data representing a width of a current pulse in the waveform or a weighted or unweighted area of a current pulse in the waveform. | 12-05-2013 |
20140043349 | DISPLAY ELEMENT CHANGE DETECTION FOR SELECTIVE LINE UPDATE - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for improving the visual appearance of displayed images at high frame rates by skipping writing lines of display data. In one aspect, clusters of changed image regions are detected, and lines are preferentially written when such clusters are detected. | 02-13-2014 |
20140192079 | ADAPTIVE TEMPORAL DITHER SCHEME FOR DISPLAY DEVICES - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for displaying high resolution images using an adaptive temporal dithering scheme on display devices having two or more color planes. The adaptive temporal dithering scheme includes identifying the dither visibility of an image to be displayed by the color planes and adaptively applying temporal dithering to the color plane having the highest dither visibility. In one aspect, temporal dithering can be adaptively applied between two different color planes on a frame-by-frame basis based at least partly on the dither visibility of the image content. | 07-10-2014 |
Patent application number | Description | Published |
20110209765 | WATER FLOW REGULATION SYSTEM - A water flow regulation system provides for the distribution of water between one or more water sources and one or more water distribution destinations based on a set of rules. Some embodiments provide for systems and methods of regulating water flow based on various status information, such as weather, cost, under-ground moisture, time or season. | 09-01-2011 |
20110213332 | MEDICATION DELIVERY SYSTEM - Some embodiments of a medication delivery system provides for the recommendation or delivery of an amount of medication to a patient based on physiological parameter information and a set or rules. Some embodiments provide for systems and methods of medication delivery based on physiological parameters of, a patient, such as blood glucose level, blood pressure, and the like. | 09-01-2011 |
20110213510 | SMART POWER STRIP - A power strip includes a controller that controls the transfer of electricity to one or more outlet electrical connectors based at least in part on a set of rules and certain status information. Some embodiments provide for apparatuses and methods of controlling the transfer of electricity to one or more outlet electrical connectors of a power strip based on various status information, such as cost, personal preferences, time information, power consumption. | 09-01-2011 |
20130261834 | SMART POWER STRIP - A power strip includes a controller that controls the transfer of electricity to one or more outlet electrical connectors based at least in part on a set of rules and certain status information. Some embodiments provide for apparatuses and methods of controlling the transfer of electricity to one or more outlet electrical connectors of a power strip based on various status information, such as cost, personal preferences, time information, power consumption. | 10-03-2013 |
20140180490 | SMART POWER STRIP - A power strip includes a controller that controls the transfer of electricity to one or more outlet electrical connectors based at least in part on a set of rules and certain status information. Some embodiments provide for apparatuses and methods of controlling the transfer of electricity to one or more outlet electrical connectors of a power strip based on various status information, such as cost, personal preferences, time information, power consumption. | 06-26-2014 |