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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. The source drivers for the portable small-scale TFT-LCD. Outline. Abstract Introduction Low power source driver Class-B buffer amplifier Result and Discussion Conclusion References. Abstract. LCD (Liquid Crystal Display)

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The source drivers for the portable small-scale TFT-LCD

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

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

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

  4. Introduction LCD system

  5. Structure of LCD

  6. Operation of TFT-LCD

  7. Operation of TFT-LCD

  8. Low power source driver

  9. The compensation of Output buffer

  10. Open-loop frequency response

  11. Class-B output buffer amplifier

  12. Equivalent circuit

  13. Slew-rate • 充電 放電 • positive slew rate negative slew rate

  14. Buffer amplifier circuit

  15. Result and Discussion

  16. Conclusion • selected number of colors achieve static power • Buffer amplifier + Rz’ stable • Rz’ charge / discharge of velocity • C Rz’ area • Buffer driver

  17. 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

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