EXPOSURE DEVICE FOR THREE-DIMENSIONAL PRINTER, THREE-DIMENSIONAL PRINTER AND THREE-DIMENSIONAL PRINTING METHOD

摘要

The present invention discloses an exposure device for three-dimensional printer, a three-dimensional printer and a three-dimensional printing method. The exposure device comprises a backlight source and a pixel panel disposed at a light-exiting side of the backlight source, the pixel panel including a plurality of pixel units arranged in an array and a plurality of switching elements in one-to-one correspondence with the plurality of pixel units and used to control the corresponding pixel units to be light transmissive or non-light-transmissive so as to enable the pixel panel to display an image to he displayed. The exposure device further comprises an outer frame for constraining a moving range of the pixel panel. The concepts of the present invention can efficiently reduce the volume of three-dimensional printer. Moreover, the pixel panel of the present invention can slightly move within the outer frame, thereby improving uniformity of exposure and printing effect.

主权项

1. An exposure device for a three-dimensional printer, comprising a backlight source and a pixel panel disposed at a light-exiting side of the backlight source, wherein the pixel panel includes a plurality of pixel units arranged in an array and a plurality of switching elements in one-to-one correspondence with the plurality of pixel units, the switching element is used to control the corresponding pixel unit to be light transmissive or non-light-transmissive, so as to enable the pixel panel to display an image to be displayed.