Over temperature protection circuit applied to an organic light emitting diode pixel circuit and organic light emitting diode pixel circuit with an over temperature protection function

Over temperature protection circuit applied to an organic light emitting diode pixel circuit and organic light emitting diode pixel circuit with an over temperature protection function

An over temperature protection circuit applied to an organic light emitting diode pixel circuit includes a voltage dividing module and a dimming signal generation module. The voltage dividing module is used for outputting an output voltage varied with a temperature of an organic light emitting diode...

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Hauptverfasser: CHIU, KUNI, CHEN, YUNIH
Format: Patent
Sprache:chi ; eng
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BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
PULSE TECHNIQUE
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CHEN, YUNIH
description An over temperature protection circuit applied to an organic light emitting diode pixel circuit includes a voltage dividing module and a dimming signal generation module. The voltage dividing module is used for outputting an output voltage varied with a temperature of an organic light emitting diode of the organic light emitting diode pixel circuit. The dimming signal generation module is coupled to the voltage dividing module for generating a pulse width modulation signal with a duty cycle varied with the temperature to a dimming transistor of the organic light emitting diode pixel circuit according to the output voltage and a triangular wave reference voltage. The dimming transistor is turned on and turned off according to the pulse width modulation signal.
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subjects BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
PULSE TECHNIQUE
title Over temperature protection circuit applied to an organic light emitting diode pixel circuit and organic light emitting diode pixel circuit with an over temperature protection function
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