LCD DISPLAYS MODULES, Alphanumeric (STN) A range of high quality, alphanumeric, dot matrix LCD modules offering a wide choice of popular character formats in either reflective or transflective display mode. The use of super twist nematic (STN) LCD technology significantly improves contrast and viewing angle for superior visibility. A standard on-board chip-set (COB) ensures industry compatibility and will interface with 4 or 8 bit microprocessors. PCB connections are via through plated holes o.