Methods and apparatus for driving pixels in a microdisplay

Details Methods and apparatus for driving pixels in a microdisplay Methods and apparatus for driving pixels in a microdisplay

2006-12-19

2006-12-19

Lefkowitz, Sumati (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S204000, C345S694000, C365S049130, C365S189070

Reexamination Certificate

active

07151521

ABSTRACT:
A pixel is driven with pulse width modulation (PWM). A cycle for the PWM signal is divided into a plurality of super-intervals. Each of the super-intervals is divided into a plurality of intervals. An interval index is stored for the pixel. The timing at which the pixel is changed from one state to another is selected based on an enable signal and the stored interval index.

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Travis N Blalock, Neela B. Gaddis, Ken A. Nishimura and Thomas A. Knotts, “True Color 1024 X 768 Microdisplay with Analog In-Pixel Pulsewidth Modulation and Retinal Averaging Offset Correction”,IEEE Journal of Solid-State Circuits,vol. 36, No. 5, May 2001, pp. 838-845.

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