VCOM voltage circuit for automatic real-time regulating LCD

The utility model relates to a circuit which can automatically adjust the liquid crystal VCOM voltage in real time. The circuit includes a photoelectric converter, a PWM circuit, a microcontroller, a memorizer, a digital-analog converter, and a non-inverting amplifier, wherein, an output end of the...

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Bibliographische Detailangaben
Hauptverfasser:	QUAN XIAOPENG, MAO RUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION CRYPTOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DISPLAY EDUCATION FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The utility model relates to a circuit which can automatically adjust the liquid crystal VCOM voltage in real time. The circuit includes a photoelectric converter, a PWM circuit, a microcontroller, a memorizer, a digital-analog converter, and a non-inverting amplifier, wherein, an output end of the photoelectric converter connects with an input end of the PWM circuit; an output end of the PWM circuit connects with an I/O interface of the microcontroller; the I/O interface of the microcontroller connects with an input end of the digital-analog converter; a communication interface of the memorizer connects with an communication interface of the microcontroller; an I/O interface of the memorizer connects with an I/O interface of the microcontroller; the digital-analog converter connects with a non-inverting input end of the non-inverting amplifier; the signal is output after being amplified by the non-inverting amplifier. The circuit realizes the monitoring in real time and the adjustment of the VCOM voltage, co