Transparent polymer dispersed liquid crystal display device and manufacturing method and application thereof

Abstract

The invention relates to a transparent polymer dispersed liquid crystal display device and a manufacturing method and application thereof. The transparent polymer dispersed liquid crystal display device comprises first and second substrates, first and second alignment layers and a polymer dispersed liquid crystal clamped between the first and second substrates, wherein the first alignment layer is formed on the first substrate, and the second alignment layer is formed on the second substrate. The transparent polymer dispersed liquid crystal display device is characterized in that the first and second substrates are ITO ((Indium Tin Oxide))-doped organic glass with the degraded surface, and the first and second alignment layers are uniaxially stretched polyvinyl alcohol grafted methyl methacrylate films. According to the transparent polymer dispersed liquid crystal display device, the alignment layers and the substrates, and the alignment layers and the polymer dispersed liquid crystal can be prevented from generating gaps caused by stripping.

Description

technical field [0001] The invention relates to the technical field of polymer-dispersed liquid crystal display devices, in particular to a transparent polymer-dispersed liquid crystal display device and its manufacturing method and application. Background technique [0002] Polymer Dispersed Liquid Crystal (PDLC) display device is a newly developed flat panel display device capable of displaying information. PDLC is to mix low-molecular liquid crystals with prepolymers, and undergo polymerization reactions under certain conditions to form micron-sized liquid crystal droplets that are evenly dispersed in the polymer network, and then use the dielectric anisotropy of liquid crystal molecules to obtain electro-optical properties. Materials with responsive properties can exhibit two different optical states of transmission and scattering under the action of external fields (such as electric fields, thermal fields, etc.). In the case of no external voltage, a regular electric f...

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Problems solved by technology

However, due to the high requirement of initial transparency for transparent display, the process method of using PI liquid as the alignment layer can no longer adapt to the development trend of display technology.

Moreover, in the existing R-PDLC display device, since there is no chemical connection between the polymer matrix and the alignment layer or between the alignment layer and the glass substrate, only by physical bonding, the bonding force will gradually decrease as the service life increases. Weakened so that peeling between the polymer matrix and the alignment layer or the alignment layer and the glass substrate occurs, resulting in voids, which affect the light transmission of the R-PDLC display device

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