18-Bit RGB
18-Bit RGB describes a clocked parallel TFT connection that uses 18 data lines (6 for Red, 6 for Green, 6 for Blue) as well as Hsync, Vsync, data enable, and pixel clock to transfer image data to a TFT.
The theoretical color depth is 218 or 262,144 colors as each of the 18 data bus lines can be either a 0 or a 1 (2 options).
For more on how RGB works, check out our blog post RGB and Color Depth.
