| 摘要 |
PURPOSE:To enable multicolor display by a method wherein light emitting elements with three primary colors are made to release light by combination through the conversion of analog signals to be displayed into digital signals. CONSTITUTION:The analog value to be displayed which is inputted to the input terminal IN is converted into 3-bit digital signals a, b, and c by an A/D conver sion circuit 21. A logical circuit 22 receives the signals a, b, and c and releases output signals with seven combinations except zero of each terminal to three output terminals R, G, and B. A red LED D1, green LED D2, and blue LED D3 are connected to the output terminals R, G, and B, respectively. |
