A method for selecting and controlling the working voltage of an electric dimming device

Abstract

The invention relates to a method for adjusting working voltage of an electric light dimming device. The electric light dimming device sequentially comprises a lower substrate, an adjusting electrode,an ion storage layer, an electrolyte, a color change layer, a transparent electrode and an upper substrate from bottom to top, the ion storage layer and the color change layer are provided with samepolythiophene derivatives, the electrolyte is provided with mixture of sodium polystyrenesulfonate, glycerin, sorbitol, deionized water and titanium dioxide, and the transparent electrode is providedwith an ITO (indium tin oxide) electrode. The method includes the step: changing prepared materials of the adjusting electrode to adjust the working voltage of the electric light dimming device, and namely, applying external voltage onto the device when optical density reaches saturation or approximates to saturation. Electrode materials are widely acquired, an adjustable range of the working voltage of the electric light dimming device is wide by adjusting the electrode materials, the working voltage of the electric light dimming device is easily turned down, and the electric light dimming device driven by low voltage has excellent application prospect in the fields such as passive driving and low-power-consumption electronic circuits.

Description

technical field [0001] The invention relates to a method for selecting and controlling the working voltage of an electric dimming device, belonging to the technical field of thin film displays. Background technique [0002] Electrically adjustable materials are a new type of functional material that has developed rapidly in recent years. Its optical properties (reflectivity, transmittance, absorption rate, etc.) will undergo stable and reversible changes under the action of an external electric field or voltage. Appears as a change in color and transparency. [0003] There are two common types of electric light adjustment: inorganic and organic. The former is mainly transition metal oxides and their analogs, and the latter includes polyaniline, polythiophene and its derivatives, and viologen. [0004] Electric dimming display devices were first used by S.K.Deb in 1969 using amorphous WO 3 Films are prepared. The advantages of low power consumption, low cost, high contrast...

AI Technical Summary

Problems solved by technology

[0012] Chinese patent document CN104898345A discloses a driving arrangement structure of electrochromic glass, which solves the technical defect that the effective driving voltage on both sides of large-area electrochromic glass is too high, and the effective driving voltage in the middle is insufficient, resulting in uneven discoloration of electrochromic glass. Add L-shaped metal conductive strips with higher conductivity on the bottom and top conductive layers that are slightly less conductive than metal electrodes (such as oxide electrodes), and the upper and lower metal conductive strips are respectively arranged on both sides of the top and bottom conductive layers On the long side and short side of the electrochromic glass, and shorten the electrical effect distance between the upper electrode conductive strip and the lower electrode conductive strip as much as possible, enhance the uniformity of the potential distribution on the top and bottom electrodes, thereby improving the effective driving voltage of the electrochromic glass. distributed

However, this solution only makes the discoloration of the large-area electrochromic glass more uniform, and does not substantially reduce the operating voltage of the entire electrochromic glass.

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