초록 ▼

Methods and apparatus for producing a pulse-width-modulated (PWM) grayscale or color image using a binary spatial light modulator. By staggering and re-quantizing the PWM intervals to a clock of a period based on the frame time divided by number of rows in the display, the system's peak bandwidth re

Methods and apparatus for producing a pulse-width-modulated (PWM) grayscale or color image using a binary spatial light modulator. By staggering and re-quantizing the PWM intervals to a clock of a period based on the frame time divided by number of rows in the display, the system's peak bandwidth requirements are optimized for displays of arbitrary resolution and arbitrary choice of PWM waveform. Additionally, a gating circuit increases the optical efficiency of a spatial light modulator using this PWM method in a field-sequential color system by reducing the duration of the blanking period between color fields.

대표청구항 ▼

1. A spatial light modulator (SLM) comprising:an array of pixel elements; an array of memory cells coupled to the array of pixel elements and having a plurality of rows, wherein each memory cell controls the state of one of the pixel elements; and a plurality of gating circuits, each gating circuit

1. A spatial light modulator (SLM) comprising:an array of pixel elements; an array of memory cells coupled to the array of pixel elements and having a plurality of rows, wherein each memory cell controls the state of one of the pixel elements; and a plurality of gating circuits, each gating circuit coupled to one of the pixel elements; wherein when a blanking control signal is applied to the gating circuits, all associated pixel elements are simultaneously forced to an off state regardless of the content of the associated memory cells.