This text has mainly introduced a kind of method of how to let multi LED displaying, making use of single chip microcomputer and 74LS164.We designed multi-LED displaying system making use of the method, it has many characters, for example hardware construction simple, programming software easy and price is low ,etc.
In this paper, the design of a big LED displaying system with vedio signal processing function is introduced. This system has 12\|bit displaying colour grades, and it realizes synchronous displaying with the VGA displayer of computer.
Experiments on distance perception of stereoscopic targets have been conducted with the stereoscopic LED displays using parallax barriers, as well as a stereoscopic LED display using polarizing eyewear.
The small size, only four command switches and the six-digit LED display for parameter presentation make the instrument easy for use in the clinic.
You might note that the LED display does not form every character of the alphabet completely, so you have to do a little creative interpretation.
You will see this as you view the pictures of the LED display as you review these instructions.
A hard event will be evident by a solid pulsing of the converter and a brief flash of digit on the LED display.