Source driving amplifier of LCD

Source driving amplifier of LCD

The present invention is a source driving amplifier of LCD, which comprises a first input circuit which can be switched into an NMOS differential amplifying circuit or bias circuit by a polarity switching signal; and a second input circuit which can be switched into a PMOS differential amplifying ci...

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1. Verfasser: JUANG, DAANG
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
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creator JUANG, DAANG
description The present invention is a source driving amplifier of LCD, which comprises a first input circuit which can be switched into an NMOS differential amplifying circuit or bias circuit by a polarity switching signal; and a second input circuit which can be switched into a PMOS differential amplifying circuit or bias circuit by a polarity switching signal, wherein the output of the first output circuit switched into the NMOS differential amplifying circuit pushes the PMOS transistor of the output transistor pair as the source-out amplified output stage, and the current provided by the NMOS transistor of the output transistor pair is provided for voltage-biasing. The output of the second output circuit switched into the PMOS differential amplifying circuit pushes the NMOS transistor of the output transistor pair as the sink-in amplified output stage, and the current provided by the PMOS transistor of the output transistor pair is provided for voltage-biasing. Thus, the DC offset problem can be effectively solved, and it can be used in the dot-inversion and row-inversion system without resetting the electrical potential.
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The output of the second output circuit switched into the PMOS differential amplifying circuit pushes the NMOS transistor of the output transistor pair as the sink-in amplified output stage, and the current provided by the PMOS transistor of the output transistor pair is provided for voltage-biasing. 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The output of the second output circuit switched into the PMOS differential amplifying circuit pushes the NMOS transistor of the output transistor pair as the sink-in amplified output stage, and the current provided by the PMOS transistor of the output transistor pair is provided for voltage-biasing. Thus, the DC offset problem can be effectively solved, and it can be used in the dot-inversion and row-inversion system without resetting the electrical potential.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
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subjects ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
title Source driving amplifier of LCD
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