Bit-splitting for pulse width modulated spatial light modulator

Details Bit-splitting for pulse width modulated spatial light modulator Bit-splitting for pulse width modulated spatial light modulator

1996-08-30

1999-10-19

Luu, Matthew

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345147, G09G 510

Patent

active

059697105

ABSTRACT:
A method of implementing pulse-width modulation in a display system (10, 20) that uses a spatial light modulator (SLM) (15) Each frame of data is divided into bit-planes, each bit-plane having one bit of data for each pixel of the SLM and representing a bit weight of the intensity value to be displayed by the pixels. Each bit-plane has a display time corresponding to a portion of the frame period, with bit-planes of more significant bits having longer portions. Then, the display times for one or more of the more significant bits are segmented so that the data for those bits can be displayed in segments rather than for a continuous time. (FIG. 3A). The segments are distributed throughout the frame period to reduce visual artifacts. (FIG. 3B).

REFERENCES:
patent: 5278652 (1994-01-01), Urbanus et al.
patent: 5497172 (1996-03-01), Doherty et al.

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