Tsongming M Kao

US Patent:

20110261370, Oct 27, 2011

Filed:

Mar 14, 2011

Appl. No.:

13/047180

Inventors:

Philip Floyd - Redwood City CA, US
Tsongming Kao - Sunnyvale CA, US
Marc Mignard - San Jose CA, US
Suryaprakash Ganti - Los Altos CA, US
Manish Kothari - Cupertino CA, US

Assignee:

QUALCOMM MEMS Technologies, Inc. - San Diego CA

International Classification:

G01B 11/14
G01J 3/46
G01J 3/50

US Classification:

356614, 250226, 356402

Abstract:

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for detecting proximity and/or color of an object. In one aspect, an optical sensor includes a plurality of transmissive interferometric elements, a plurality of detectors positioned to detect the presence and/or intensity of light transmitted through the elements, and a processor to determine the proximity of an object based at least in part upon input from the detectors. An optical signal can be sensed by selectively actuating certain elements in a set of transmissive interferometric elements in an array to allow transmission of optical signals within a first spectrum through the array, and detecting optical signals transmitted through the array.

US Patent:

20130222351, Aug 29, 2013

Filed:

Feb 23, 2012

Appl. No.:

13/403792

Inventors:

Tsongming Kao - Sunnyvale CA, US
Charles Leu - Fremont CA, US
Kostadin Djordjev - San Jose CA, US
Rihui He - San Jose CA, US

Assignee:

QUALCOMM MEMS Technologies, Inc. - San Diego CA

International Classification:

G09G 5/00

US Classification:

345205

Abstract:

This disclosure provides systems, methods and apparatus for EMS devices. In one aspect, an EMS device includes an array of display elements and a plurality of driver lines with at least a portion of the plurality of driver lines routed above or below the array between one or more driver circuits and the array. In some implementations, at least a portion of the plurality of driver lines is disposed above a non-active area of the array. In one aspect, an EMS device can form a portion of at least one of the plurality of driver lines. In some implementations, movable layers of the array can be disposed between at least a portion of the plurality of driver lines and stationary electrodes of the display.

US Patent:

20140028686, Jan 30, 2014

Filed:

Jul 27, 2012

Appl. No.:

13/560732

Inventors:

Rihui He - San Jose CA, US
Marek Mienko - San Jose CA, US
Alok Govil - Santa Clara CA, US
Tsongming Kao - Sunnyvale CA, US

Assignee:

QUALCOMM MEMS TECHNOLOGIES, INC. - San Diego CA

International Classification:

G06T 1/00
H01L 33/60
G02B 26/00

US Classification:

345501, 359291, 438 23, 257E33072

Abstract:

This disclosure provides systems, methods and apparatus for encapsulating a display device. In one aspect, an interferometric modulator (IMOD) is formed on a substrate. The IMOD includes an absorbing layer separated from the substrate, a reflective layer between the absorbing layer and the substrate, and an optical gap between the absorbing layer and the reflective layer. One or more thin film encapsulation layers hermetically seal the IMOD between the one or more thin film encapsulation layers and the substrate. In another aspect, an optical or functional layer can be formed over the one or more thin film encapsulation layers.

US Patent:

20140029078, Jan 30, 2014

Filed:

Jul 24, 2012

Appl. No.:

13/557061

Inventors:

Leonard Eugene Fennell - Foster City CA, US
Tsongming Kao - Sunnyvale CA, US
Teruo Sasagawa - Los Gatos CA, US
Sapna Patel - Fremont CA, US
Hung-Jen Wang - New Taipei City, TW

Assignee:

QUALCOMM MEMS TECHNOLOGIES, INC. - San Diego CA

International Classification:

G02B 26/00
H05K 3/00
H05K 7/00

US Classification:

359238, 36167901, 29846

Abstract:

This disclosure provides systems, methods and apparatus for protecting electromechanical systems (EMS) devices from mechanical interference. In one aspect, an array of EMS devices may include one or more regions in which an EMS device is replaced with a spacer structure, such that the overall height of the spacer structure is greater than the height of the surrounding EMS devices. In another aspect, resilient spacer structures can be formed overlying stable portions of an EMS device array. These resilient spacer structures may be formed from a cross-linked organic material.

US Patent:

20110261036, Oct 27, 2011

Filed:

Apr 19, 2011

Appl. No.:

13/090110

Inventors:

Alok Govil - Santa Clara CA, US
Tsongming Kao - Sunnyvale CA, US
Marc Maurice Mignard - San Jose CA, US
Suryaprakash Ganti - Los Altos CA, US
Philip Don Floyd - Redwood City CA, US
Manish Kothari - Cupertino CA, US

Assignee:

QUALCOMM MEMS TECHNOLOGIES, INC. - San Diego CA

International Classification:

G09G 3/36
H05K 13/04
G09G 5/00

US Classification:

345205, 29825, 345 87

Abstract:

This disclosure provides systems, methods and apparatus for parallel dithering images are disclosed. In one aspect, a display device includes: a front substrate; a backplate opposing the front substrate; an array of display elements associated with the front substrate; and an array of processing units associated with the backplate. Each of the processing units is configured to process data for one or more of the display elements for dithering an image. Each of the processing units is spatially arranged to correspond to the one or more display elements for which it is configured to process data. The array of processing units can perform a faster dithering process than a single processor sequentially performing all computation for dithering. Further, the position of the array of processing units allows effective image data processing in an active-matrix type display device while utilizing the space of the backplate thereof.

US Patent:

20110261046, Oct 27, 2011

Filed:

Mar 18, 2011

Appl. No.:

13/051369

Inventors:

Alok Govil - Santa Clara CA, US
Tsongming Kao - Sunnyvale CA, US
Marc M. Mignard - San Jose CA, US
SuryaPrakash Ganti - Los Altos CA, US
Philip D. Floyd - Redwood City CA, US
Manish Kothari - Cupertino CA, US

Assignee:

QUALCOMM MEMS Technologies, Inc. - San Diego CA

International Classification:

G09G 5/00

US Classification:

345212

Abstract:

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for displaying an image using voltage shifting. In one aspect, a display device includes an array of display elements, each display element configurable into one of a plurality of states upon application of one of a plurality of voltages, and an array of voltage shifters, each voltage shifter associated with one or more of the display elements and configured to receive at least one input voltage from a display driver circuit and output at least one output voltage different than the input voltage to the associated one or more display elements. The voltage shifters can include, for example, at least one of an amplifier, a differential amplifier, an operational amplifier, a charge pump, a level shifter and a digital-to-analog converter.

US Patent:

20110261037, Oct 27, 2011

Filed:

Apr 21, 2011

Appl. No.:

13/092087

Inventors:

Alok Govil - Santa Clara CA, US
Tsongming Kao - Sunnyvale CA, US
Marc M. Mignard - San Jose CA, US
SuryaPrakash Ganti - Los Altos CA, US
Philip D. Floyd - Redwood City CA, US
Manish Kothari - Cupertino CA, US

Assignee:

QUALCOMM MEMS Technologies, Inc. - San Diego CA

International Classification:

G06F 3/038

US Classification:

345205

Abstract:

This disclosure provides methods, systems and apparatus for storing and processing image data at the pixel using augmented active matrix pixels. Some implementations of a display device may include a substrate, an array of display elements associated with the substrate and configured to display an image, an array of processor units associated with the substrate, wherein each processor unit is configured to process image data for a respective portion of the display elements and an array of memory units associated with the array of processor units, wherein each memory unit is configured to store data for a respective portion of the display elements. Some implementations may enable color processing image data at the pixel, layering of image data at the pixel or temporal modulation of image data at the pixel. Further, in some implementations, the display element may be an interferometric modulator (IMOD). Some other implementations may additionally include a display, a processor configured to communicate with the display and a memory device that is configured to communicate with the processor.

US Patent:

20110260956, Oct 27, 2011

Filed:

Apr 21, 2011

Appl. No.:

13/092030

Inventors:

Alok Govil - Santa Clara CA, US
Tsongming Kao - Sunnyvale CA, US
Marc M. Mignard - San Jose CA, US
SuryaPrakash Ganti - Los Altos CA, US
Philip D. Floyd - Redwood City CA, US
Manish Kothari - Cupertino CA, US

Assignee:

QUALCOMM MEMS Technologies, Inc. - San Diego CA

International Classification:

G09G 3/34

US Classification:

345 84

Abstract:

This disclosure provides systems, methods and apparatus for sharing image data between interconnected pixels in a display device. Some implementations of a display device may include an array of pixels, where each pixel includes a display element, a memory element, one or more data interconnect lines connecting the pixel to one or more other pixels, one or more switches positioned in one or more of the interconnect lines and one or more scroll data lines connected to one or more of the switches. Some implementations may enable scrolling of image data on a display without writing new image data to the display. Further, in some implementations, the display element may be an interferometric modulator (IMOD). Some other implementations may additionally include a display, a processor configured to communicate with the display and a memory device that is configured to communicate with the processor.