Features Of LCD Display

- Feb 20, 2019-

The electrolytic action of an LCD monitor will occur under the action of DC voltage, so it must be driven by AC, and the DC component in the AC component is limited to not more than dozens of millivolts.

Second, the change of optical properties of liquid crystal under the action of electric field is based on the elastic deformation of liquid crystal as elastic continuum, and the response time is long, so the effect of alternating drive voltage does not depend on its peak, and the change of liquid crystal transmittance is only related to the effective value of the applied voltage when the frequency is less than 1000Hz.

Three liquid crystal Unit is capacitive load, liquid crystal resistance in most cases can be ignored, is non-polar, that is, positive pressure and negative pressure effect is the same.