SYSTEMS AND METHODS FOR IMPROVING MEASUREMENT OF LIGHT TRANSMITTANCE THROUGH INK DEPOSITED ON A SUBSTRATE

摘要

Systems, methods and apparatus for manufacturing color filters for flat panel displays are provided that include an inkjet printing system integrated with a light transmittance measurement system. The inkjet printing system includes a stage for supporting and moving a substrate past inkjet print heads adapted to deposit ink in pixel wells on the substrate. The light transmittance measurement system includes a sensor and a light source disposed on opposite sides of the substrate and adapted to determine the thickness of the ink deposited on the substrate. The light source is adapted to move with the sensor to allow different pixel wells containing deposited ink to be measured, and the stage includes at least one optical path to allow light from the light source to pass through the deposited ink to the sensor.