Liquid crystal display panel, manufacturing method thereof and display device

Abstract

The invention provides a liquid crystal display panel, a manufacturing method of the liquid crystal display panel and a display device and belongs to the technical field of liquid crystal display. The liquid crystal display panel comprises a first substrate, a second substrate, a PDLC layer, a first transparent electrode unit, a second transparent electrode unit and a third transparent electrode unit. The first substrate, the second substrate and the PDLC layer are arranged oppositely. The first transparent electrode unit is arranged on the face, facing the second substrate, of the first substrate and is connected with a TFT. The second transparent electrode unit is arranged on the face, facing the first substrate, of the second substrate and connected with a first voltage. The third transparent electrode unit is arranged on the first substrate and the second substrate, has a preset height and is connected with a second voltage and the polarity of the first voltage is opposite to that of the second voltage. When electricity is supplied, the same polarity is generated by the first transparent electrode unit and the second transparent electrode unit and the polarity of the first transparent electrode unit and the polarity of the second transparent electrode are opposite to that of the third transparent electrode unit; when the electricity is not supplied, liquid crystal molecules of the PDLC layer are arranged perpendicular to the substrates. According to the liquid crystal display panel, the driving voltage of an inversed type PDLC film can be reduced and the contrast ratio of the inversed type PDLC film can be improved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal panel, a manufacturing method thereof, and a display device. Background technique [0002] PDLC (polymer dispersed liquid crystal, polymer dispersed liquid crystal) is one of the liquid crystal units used in LCD (Liquid Crystal Display, liquid crystal display), which has the characteristics of light scattering intensity to control light transmission and does not require polarizing plates. The optical properties of the PDLC film largely depend on the effective refractive index of the liquid crystal molecules and the matching with the polymer matrix. [0003] Ordinary PDLC films prepared by using positive liquid crystals, when no voltage is applied, the liquid crystal molecules are arranged in disorder, so after the incident light enters, refraction and reflection occur many times at the interface between the liquid crystal molecules and the polymer ...

AI Technical Summary

Problems solved by technology

[0005] The optical properties of the PDLC film largely depend on the characteristics of the liquid crystal molecules themselves. Due to certain defects in the physical properties of the negative liquid crystal, the trans PDLC film prepared by using the negative liquid crystal has high driving voltage and low contrast. shortcoming

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