Transparent liquid crystal display device and manufacturing method thereof

Abstract

The invention relates to a transparent liquid crystal display device and a manufacturing method thereof. The transparent liquid crystal display device comprises a first substrate with a first transparent electrode, a second substrate with a second transparent electrode and a polymerized network liquid crystal layer clamped between the first substrate and the second substrate. The polymerized network liquid crystal layer contacts with the first substrate and the second substrate and is formed by dichroic dye, a liquid crystal material and macromolecule monomers. The manufacturing method comprises adding the dichroic dye into the liquid crystal material to form a dichroic dye liquid crystal mixture; adding the dichroic dye liquid crystal mixture into the macromolecule monomers to form a dichroic dye liquid crystal macromolecule mixture; and enabling the dichroic dye liquid crystal macromolecule mixture to be filled between the substrates, using ultraviolet light to shine the dichroic dye liquid crystal macromolecule mixture to form the polymerized network liquid crystal layer. The problem that a dark state is not dark enough can be solved, and accordingly the contrast performance of the transparent display device is improved.

Description

technical field [0001] The invention relates to a transparent display device, in particular to a transparent liquid crystal display device and a manufacturing method thereof. Background technique [0002] In recent years, a transparent display device (Transparent display device) has been developed, wherein the liquid crystal layer of the transparent display device can produce light-scattering and non-light-scattering (Non-scattering) according to the positive and negative directions of the electric field. state. For example, in the light-scattering state, information can be displayed on the screen; in the non-light-scattering state, the screen allows the line of sight to see through and see the background behind the screen. [0003] In various types of transparent display devices, the application of Polymer Network Liquid Crystal (PNLC) is being continuously studied, and has almost reached the level of practical application. In the state of no applied voltage, the axial di...

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Problems solved by technology

[0004] The liquid crystal material in the above-mentioned polymeric network liquid crystal has the ability of light scattering for incident light. In contrast, it can be seen that its light absorption ability is not good, so there is a problem that the dark state (Dark state) is not dark enough, which leads to the contrast of the transparent display device. bad

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