Image exposure method using display panel

Details Image exposure method using display panel Image exposure method using display panel

1996-06-13

1999-03-02

Metjahic, Safet

Photocopying

Projection printing and copying cameras

Multicolor picture

G03B 2772

Patent

active

058778446

ABSTRACT:
An image exposure method using a display panel, for exposing an image onto a photosensitive material by dividing the image into pixels which are arranged in a matrix pattern on the display panel and by adjusting amounts by which light is transmitted through or reflected at the pixels or an amount of emitted light. The method steps include: determining to effect exposure processing a plurality of times when a defective pixel whose amount of transmitted light, reflected light or emitted light cannot be adjusted, exists on the display panel; and effecting exposure processing a plurality of times, wherein the exposure processing of a plurality of times includes exposure with a relative position of a group of pixels arranged in a matrix pattern on the display panel and split images corresponding to the pixels being displaced, and an amount of exposure for each time of exposure processing is an amount given by dividing an overall amount of exposure in accordance with the number of times of displacement. Accordingly, it is no possibility that a specified image depends upon the defective pixel completely, and exposure-dependent ratios can be respectively distributed to the plurality of images.

REFERENCES:
patent: 4878072 (1989-10-01), Reinten
patent: 5371615 (1994-12-01), Eschbach
patent: 5712700 (1998-01-01), Nagaishi et al.
patent: 5724456 (1998-03-01), Boyack et al.

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