Circuit for generating common voltage for liquid crystal panel and liquid crystal display

Abstract

The invention relates to a circuit for generating common voltages for a liquid crystal panel and a liquid crystal display, and belongs to the technical field of displays. The circuit comprises: a voltage generation unit, which generates first voltages; and a voltage follower, which is coupled to the voltage generation unit on the basis of a discrete triode, and generates common voltages used for a liquid crystal panel by taking the first voltages as input voltages. The driving capability of the common voltages for the liquid crystal is enhanced, and the cost is reduced.

Description

technical field [0001] The present disclosure relates to the technical field of electronic displays, in particular to a circuit for generating a common voltage for a liquid crystal panel and a liquid crystal display thereof. Background technique [0002] Electronic displays, such as liquid crystal displays (LCDs), are commonly used on electronic devices such as laptop computers, tablet computers, mobile devices, televisions, and other electronic devices. LCDs display images by adjusting the amount of light passing through a layer of liquid crystals in different colored pixels. For example, an electric field can be generated by changing a voltage difference between a pixel electrode and a common electrode in a pixel. The electric field can cause the liquid crystal layer to change its direction of rotation, which can ultimately result in more or less light being emitted through the pixels where it might be seen. Images can be produced on an LCD by varying the voltage differe...

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Problems solved by technology

[0006] The present disclosure provides a circuit for generating a common voltage for a liquid crystal panel and its liqu

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