TFT LCD Manufacturing Process Part Three

3. Module

First link the cell to circuit system.

·        Link the cell to driver IC.

·        Link driver IC to FPC (flexible printed circuit).

·        Link FPC to outer PCBA (printed circuit board assembly).

Next prepare the light system

·        Attach the light source, usually LED or CCFL, on light guide plate, under which there is reflector film

·        Put the diffuser film and prism film on light source in turn. Together with reflector film, these two films are used to turn the point light from light source into area light and enhance light intensity.

·        Link the light source to light control circuit, always another type of PCBA.

In the final step, we need to assemble all these together with the screen frame, and do a aging test.