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Damoder Reddy, Walter Edward Naugler: System and method for a long-life luminance feedback stabilized display panel. Dorsey & Whitney, January 12, 2006: US20060007204-A1

A stabilized feedback display system and method for maintaining uniform pixel luminances in a display device. System includes a display device having a plurality of emissive picture elements (pixels) each formed from at least one electronic circuit device, a display driver circuit receiving a raw in ...


32
Damoder Reddy, Walter Edward Naugler: Active-matrix display and pixel structure for feedback stabilized flat panel display. Dorsey & Whitney, January 12, 2006: US20060007205-A1

An emissive pixel device having integrated luminance sensor and a method of operating an emissive pixel device having an integrated luminance or photon flux sensor. Device includes light or photon emitting device, drive circuit generating current to drive light emitting device to predetermined lumin ...


33
Damoder Reddy, Walter Edward Naugler: Device and method for operating a self-calibrating emissive pixel. Dorsey & Whitney, January 12, 2006: US20060007206-A1

Self-calibrating emissive pixel circuit, device and method for operating pixel. Method for operating includes: establishing sensor capacitor at predetermined starting voltage, delivering current to photon emitting device to cause photons to be emitted at predetermined target photon emission level, e ...


34
Damoder Reddy, Walter Edward Naugler: Feedback control system and method for operating a high-performance stabilized active-matrix emissive display. Dorsey & Whitney, January 12, 2006: US20060007248-A1

System, device, and method for operating active-matrix emissive pixel display device. Method includes storing calibration value for pixels and gray levels displayed by pixels in memory; storing transformation in memory for transforming first representations of gray level values to second representat ...


35
Damoder Reddy, Walter Edward Naugler: Method for operating and individually controlling the luminance of each pixel in an emissive active-matrix display device. Dorsey & Whitney, January 12, 2006: US20060007249-A1

System and method for controlling luminance of pixel in display. Method includes storing transformation between digital image gray level value and display drive signal that generates luminance from pixel corresponding to digital gray level value; identifying target gray level value for particular pi ...


36
Damoder Reddy, Walter Edward Naugler: High-performance emissive display device for computers, information appliances, and entertainment systems. Dorsey & Whitney, December 29, 2005: US20050285822-A1

Information appliance device and method for operating display associated with information appliance. Information appliance includes display device comprising plurality of active-matrix pixels arranged as two-dimensional array, each pixel including a photon emitter, emitter drive circuit receiving in ...


37
W Edward Naugler, Damoder Reddy: Feedback control apparatus and method for an emissive printhead. Howrey, September 14, 2006: US20060203072-A1

The present invention uses an open loop feedback technique to control emissive pixels of a printhead of a printer. The open loop feedback technique involves measuring the light intensity of the emissive pixel, comparing the measured value to a preset threshold value, and adjusting the input voltage ...


38
W Edward Naugler, Damoder Reddy: Feedback control apparatus and method for an emissive printhead. Howrey, September 14, 2006: US20060203078-A1

The present invention uses an interrupted loop feedback technique to control emissive pixels of a printhead of a printer. The interrupted loop technique involves varying the input voltage to the organic light emitting diode (OLED) of the pixel until the pixel emits the desired intensity of light. Th ...


39
W Edward Naugler, Damoder Reddy: Method and apparatus for monitoring and calibrating an emissive pixel. Howrey, September 14, 2006: US20060204166-A1

The present invention provides techniques to calibrate the emissive pixels used in printers and displays. The emissive pixels are arranged in a linear array or in a two dimensional array. For the transparent substrate on which the emissive pixels are formed, the light emitted by a pixel is measured ...


40
W Edward Naugler, Damoder Reddy: Feedback based apparatus, systems and methods for controlling emissive pixels using pulse width modulation and voltage modulation techniques. Howrey, August 3, 2006: US20060170623-A1

The present invention provides techniques for emissive pixels of flat panel displays. Specifically, pixel feedback and a combination of voltage modulation and pulse width modulation are used to improve the quality and consistency of aging pixels. Based on feedback, an image frame is divided into sub ...