AN2686

Conclusion

9/11

4

Conclusion

This application note describes the basic principle behind the operation of liquid crystal

displays (LCDs) and describes the primary causes of screen flicker. We also propose a

solution for minimizing this flicker by using the STVM100 (LCD VCOM calibrator), replacing

the old solution requiring the use of digital potentiometers and manual in-line adjustment.

The STVM100 allows for fully automated implementation of the flicker adjustment in the

manufacturing line. STMicroelectronics has developed an LCD flicker auto adjustment

system which can be used in conjunction with the STVM100, significantly simplifying this

process.