Liquid crystal writing diaphragm circuit structure, liquid crystal writing diaphragm and liquid crystal writing board thereof

Abstract

The invention provides a liquid crystal writing diaphragm circuit structure, a liquid crystal writing diaphragm and a liquid crystal writing board thereof. The liquid crystal writing diaphragm circuitstructure comprises the following parts: a plurality of horizontal electrodes, a voltage source module, a plurality of vertical electrodes, a main control circuit and an operational amplifier modulecontrolled by the main control circuit; the operational amplifier module comprises a plurality of horizontal operational amplifiers and a plurality of vertical operational amplifiers, and the horizontal operational amplifiers and the vertical operational amplifiers are electrically connected with the driving IC module; the horizontal electrode is electrically connected with the output end of the horizontal operational amplifier, and the vertical electrode is electrically connected with the output end of the vertical operational amplifier; and the driving IC module is used for controlling the horizontal electrode and the vertical electrode to output different voltages through the operational amplifier. The invention has the advantages that it is guaranteed that the horizontal electrode andthe vertical electrode can output different voltage values; compared with traditional arrangement, the circuit structure is simplified, energy consumption is reduced, and the liquid crystal writing diaphragm is lighter and lower in energy consumption.

Description

technical field [0001] The invention relates to the field of liquid crystal writing film, in particular to a circuit structure of a liquid crystal writing film, a liquid crystal writing film and a liquid crystal writing board thereof. Background technique [0002] In order to realize the local erasure of the writing film, an external drive circuit is required to select one of the voltages from multiple different voltages to apply to the corresponding electrode, and in order to ensure that the voltage of the electrode can be stabilized at the expected voltage value for at least 20ms, so each electrode At least eight transistors (transistors) and ICs are required, resulting in a very complex circuit structure and high manufacturing costs, and multiple transistors will also lead to energy consumption and relatively large volume of the circuit. Therefore need badly a kind of circuit structure of the circuit structure of the liquid crystal writing film that can be partially erase...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a circuit structure of a liquid crystal writing film, a liquid crystal writing film and a liquid crystal writing board thereof, aiming at solving the technical problem that the circuit structure is complicated due to the need to arrange multiple diodes and triodes

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