Quote:
Originally Posted by borisb
Your original post was asking about "flash" between pages, and went on to guess about a wipe/redraw vs delta updates. I thought the blog post explained that the flash is because of the eInk needing to be reset before being redrawn...? Of course, a full screen wipe & redraw is easy to code, but as robot indicates, if a delta refresh could be calculated and performed, the performance may be smoother and faster.
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We do a full page refresh in between page changes to minimize the ghosting effect. A partial update (which is used in the Journal when writing on the screen) is quick, but is can only do white-->black and black--> white, and has a tendency to leave a "ghost" image.