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Variable-color dimming liquid crystal device and light adjustment method

A liquid crystal device, liquid crystal technology, applied in instruments, optics, nonlinear optics, etc., can solve the problems of low service life, long preparation process, and high production cost

Inactive Publication Date: 2018-01-12
SHENZHEN GUOHUA OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a color-changing light device, which has solved the problem of low color contrast before and after electrification caused by the use of a polymer network system in the prior art, time-consuming preparation process, high production cost, and long service life. low problem

Method used

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  • Variable-color dimming liquid crystal device and light adjustment method

Examples

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Embodiment 1

[0023] The present invention provides a kind of dimming liquid crystal device, its structural schematic diagram is as follows figure 1 As shown, it includes a substrate 1 and a substrate 2 that are arranged oppositely. The substrate 1 includes a transparent glass substrate 10, an ITO conductive layer 11 and a polyimide vertical alignment layer 12 that are arranged in sequence. The substrate 2 includes a layer that is arranged in sequence. There is a transparent glass substrate two 20, an ITO conductive layer two 21 and a polyimide vertical alignment layer two 22, the polyimide vertical alignment layer 12 of the substrate one and the polyimide vertical alignment layer 22 of the substrate two Relatively arranged, an adjustment area 3 is formed between the first substrate and the second substrate, the height of the adjustment area of ​​the substrate is 50 μm, the adjustment area 3 is filled with a liquid crystal mixture, and the liquid crystal mixture includes a negative liquid cr...

Embodiment 2

[0026] This embodiment provides a dimming liquid crystal device, the structure of which is the same as that of Embodiment 1, except that the height between the dimming regions is 5 μm, and the alignment layer is a polyimide parallel alignment layer. The liquid crystal mixture is a positive liquid crystal and a purple dichroic dye. The model of the purple dichroic dye used in this example is RL013. The mass fraction of the purple dichroic dye in the liquid crystal mixture is 10%. The layer is a parallel alignment layer of polyimide, and the light-changing liquid crystal device is connected to a power supply assembly with a voltage of 25V and a frequency of 50Hz to be in a power-on state. In the non-energized state of the light-changing liquid crystal device provided in this embodiment, the positive liquid crystal is aligned parallel to the substrate under the induction of the polyimide parallel alignment layer. The reorientation of the positive liquid crystal is controlled by t...

Embodiment 3

[0028] This embodiment provides a dimming liquid crystal device, the structure of which is the same as that of Embodiment 1, except that the height between the dimming regions is 25 μm, and the liquid crystal mixture is negative liquid crystal and orange dichroic Sexual dye, the model of the orange dichroic dye used in the present embodiment is RL002, the mass fraction of the orange dichroic dye in the liquid crystal mixture is 5%, and the access voltage of the light-changing liquid crystal device is 50V The power supply components with a frequency of 1000Hz are in the energized state.

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Abstract

The invention discloses a variable-color dimming liquid crystal device and a light adjusting method. Substrates oppositely arranged are filled with main liquid crystal and dichroism dye; under a no power connection state, specific arrangement orientation occurs to the main liquid crystal under induction by an orientation layer; under a power connecting state, reorientation occurs to the main liquid crystal, a dichroism dye molecule accompanies the reorientation of the main liquid crystal to rotate, and an incident light of a visible light wave band scatters; macroscopically, a light transmission state is translated into a light scattering state, the color of the dichroism dye in the main liquid crystal shows, and thus the adjustment of light is achieved. According to the variable-color dimming liquid crystal device, the existence of a polymer network is not included, a polymerization process is not needed, and polymer aging phenomenon does not exist; the production cost is reduced, andthe service life of the dimming liquid crystal device is increased.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a color-changing light liquid crystal device and a light adjustment method thereof. Background technique [0002] The electrochromic smart window is to control the light transmittance of the glass through voltage and make the color change rapidly. This technology has a good application prospect in the fields of energy saving and environmental protection. Most of the existing color smart window technologies are based on polymer-dispersed liquid crystal (PDLC) or polymer-stabilized liquid crystal (PSLC) systems, both of which are made by adding dichroic dye molecules to the mixture of host liquid crystals and photoinitiators. The polymer network obtained after polymerization, the arrangement of dichroic dye molecules in the system is easily affected by the migration of reactive monomer molecules during the polymerization process, resulting in irregular molecular arrangement in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13G02F1/133
CPCG02F1/13737G02F1/133742G02F1/13712G02F1/1337G02F1/137G02F2202/043G02F1/133738G02F1/13706G02F1/13756
Inventor 周国富詹媛媛迪克·杨·波尔刘丹青阿尔伯特·斯凯宁
Owner SHENZHEN GUOHUA OPTOELECTRONICS
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