1. 1 The source drivers for the portable small-scale TFT-LCD 指導教授 : 林志明 學生 : 黃世一 m93510021@mail.ntou.edu.tw

2. 2 Outline Abstract Introduction Low power source driver Class-B buffer amplifier Result and Discussion Conclusion References

3. 3 Abstract LCD (Liquid Crystal Display) The portable system Driver circuit Low power consumption Source driver

4. 4 Introduction LCD system

5. 5 Structure of LCD

6. 6 Operation of TFT-LCD

7. 7

8. 8 Low power source driver

9. 9 The compensation of Output buffer

10. 10 Open-loop frequency response

11. 11 Class-B output buffer amplifier

12. 12

13. 13 Equivalent circuit

14. 14 Slew-rate 充電 放電 positive slew rate negative slew rate

15. 15 Buffer amplifier circuit

16. 16 Result and Discussion

17. 17 Conclusion selected number of colors achieve static power Buffer amplifier + R z ’ stable R z ’ charge / discharge of velocity C R z ’ area Buffer driver

18. 18 References Pang-Cheng Yu and Jiin-Chuan Wu, “ A Class-B Output Buffer for Flat-Panel-Display Column Driver, ” IEEE Journal of Solid-State Circuits, Vol. 34, No.1, Jan. pp. 116-119, 1999. Jiin-Chuan Wu, “ High-Speed Driving Scheme and Compact High- Speed Low-Power Rail-to-Rail Class-B Buffer Amplifier for LCD Application, ” IEEE Journal of Solid-State Circuits, Vol.39, No.11,November 2004