Electrically controlled dimming medium with open conductive electrode layer

Abstract

The invention discloses an electronic control dimmer medium with openings on conductive electrode layers. The electronic control dimmer medium comprises two matrix layers, wherein a mixing layer is arranged between the two matrix layers and formed by mixing nearly crystalline liquid crystal and additives, a conductive electrode layer is arranged on one side of each of the matrix layers towards the mixing layer and connected with a circuit drive control device, and one opening is arranged on at least one of the two conductive electrode layers. By means of the openings, compared with the existing electronic control dimmer medium, the electronic control dimmer medium with the openings on the conductive electrode layers reduces working voltage of the nearly crystalline liquid crystal, improves the speed of conversion from a full-transparent state to a mist shading state, and is short in driving time and capable of saving energy. Furthermore, incomplete shadows do not occur under the mist shading state, the whole medium is uniform in shading, and the image display effect is good.

Description

technical field [0001] The present invention relates to an electrically controlled light-adjusting medium, in particular to an electrically-controlled light-adjusting medium whose conductive electrode layer is designed with openings. Background technique [0002] Smectic liquid crystal, also known as smectic liquid crystal, has the characteristics of optical anisotropy and multi-stable state, and can be used as liquid crystal material in electronically controlled dimming medium, see Chinese invention patent No. ZL200710175959.9 An electronically controlled dimming medium". [0003] In the above-mentioned Chinese invention patent "an electronically controlled dimming medium", such as figure 1 As shown, the electrically controlled dimming medium includes two base layers 1, 2, and a mixed layer 3 is arranged between the two base layers 1, 2, and the mixed layer 3 is formed by mixing smectic liquid crystal and additives A conductive electrode layer 4 is provided on the side of...

AI Technical Summary

Problems solved by technology

[0007] Then, when the low-frequency AC driving voltage signals applied to the two conductive electrode layers 4 have insufficient voltage or insufficient driving time, mixing will occur when the smectic liquid crystal molecules 31 change from a regular arrangement to a random arrangement. The regular arrangement of smectic liquid crystal molecules 31 in the middle of layer 3 (that is, the middle of the electric field) has not completely transformed into a disordered arrangement. From a macroscopic point of view, the electronically controlled dimming medium presents a foggy shading state with afterimages. Insufficient shading in the center of the medium, uneven overall shading

In other words, the electronically controlled dimming medium needs to be driven for a long time and at high voltage to overcome the image sticking defect, but the long time and high voltage bring waste of electricity to the electronically controlled dimming medium, driving time is too long, and it is not easy to use. Convenience and other issues

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