Design of Dot-matrix Drawing Software Used in Mine LED Electronic Display Board

For problems of inaccurate drawing and poor visibility of mine LED electronic display board using vector technical to draw graphics, the paper proposed a design scheme of dot-matrix drawing software which can be applied in different types of electronic display boards, and introduced overall design and graying steps of BMP image of the software. The dot-matrix drawing software achieves functions of WYSIWYG drawing, text and dot-matrix conversion, BMP pictures import/conversion, ICO icons import/export, analog display and external common interface. Comparison result shows that both the original graphics and their actual display effects of the graphics drawn by the dot-matrix drawing software are significantly better than the graphics drawn by vector technical.