Source driver having an output buffer circuit with slew rate compensation and display device thereof

An output buffer circuit includes an operational amplifier configured to generate an amplifier output voltage signal based on an input voltage signal and on a compensation current, a slew rate compensating circuit configured to generate the compensation current to increase a slew rate of the amplifi...

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Bibliographische Detailangaben
Hauptverfasser:	Lee, Woonyoung, Moon, Youngbae, Yu, Chanbong, Jang, Yunseok
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING AMPLIFIERS ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION BASIC ELECTRONIC CIRCUITRY CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CRYPTOGRAPHY DISPLAY EDUCATION ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION INFORMATION STORAGE PHYSICS SEALS STATIC STORES
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Beschreibung
Zusammenfassung:	An output buffer circuit includes an operational amplifier configured to generate an amplifier output voltage signal based on an input voltage signal and on a compensation current, a slew rate compensating circuit configured to generate the compensation current to increase a slew rate of the amplifier output voltage signal based on a difference between the input voltage signal and a feedback voltage signal, an output path circuit connected between the operational amplifier and an output pad, the output path circuit configured to transfer the amplifier output voltage signal to generate a pad output voltage signal through the output pad, and a feedback path circuit, the feedback path circuit connected between the slew rate compensating circuit and a feedback input node that is on the output path circuit, the feedback path circuit configured to generate the feedback voltage signal.