The present invention of computer LED writing board has a complete new and inventive design with highly practical value.The advantages of the frame of coding scanning by groups used in the digital computer LED writing board will greatly reduce the number of input terminals of both comparator and multiplexer.

Custom neon signs use aluminum for giving attractive and bright look. These signs are especially made for people who prefer custom design for their business. The items used for making neon signs cost less than LED sign material.

Neon signs are the most visible signs at night and can be seen further away than any other sign. Neon's vibrant colors can shine through the dark, rain, and fog to draw attention from potential customers. Neon sign exclusively carry a nostalgic value. It grabs attention due to a unique spectral output of its light which affects the viewers optic nerve differently than other light sources.