The DV- 20400- S1FBLY/R22, dot- matrix LCD unit of a 5 x 7- dot 20- character 4- line dot - matrix LCD panel, LCD driver, controller LSI and yellow green back- light LED fabricated on a single PCB.
Incorporating mask ROM - based character generator and display data RAM in the controller LSI, the unit can efficiently display the desired characters under microprocessor control.