Two-ended voltage level shifter for TFT LCD gate driver

Details Two-ended voltage level shifter for TFT LCD gate driver Two-ended voltage level shifter for TFT LCD gate driver

2006-04-04

2006-04-04

Tran, Anh Q. (Department: 2819)

Electronic digital logic circuitry

Interface

Logic level shifting

C326S063000, C326S080000, C326S081000

Reexamination Certificate

active

07023241

ABSTRACT:
A circuit for converting voltage levels that comprises a first power supply providing a first voltage level, a second power supply providing a second voltage level, a first transistor formed between the first and second power supplies including a gate electrode for receiving an input signal including a first state and a second state, a second transistor formed between the first transistor and the second power supply including a gate electrode for receiving a bias voltage, and a current source formed between the second transistor and the second power supply providing a current in response to the first state of the input signal, wherein a voltage level at a node disposed between the second transistor and the current source is pulled to a third voltage level in response to the first state of the input signal, and pulled to the second voltage level in response to the second state of the input signal.

REFERENCES:
patent: 2002/0190779 (2002-12-01), Aiba et al.
patent: 2003/0020516 (2003-01-01), Fujita

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