22-Mar-2021 | Market Research Store

There is a transparent glass display with extreme white light contrast ratio developed researchers from Jilin University. This see-through glass display allows the white light to smoothly transition between a broad spectrum of colors on being electrically charged. The latest technology has been developed to outdo the shortcomings of existing electrochromic devices through the use of interactionsbetween metal ions and ligands. There are possibilities that the latest study will pave way for numerous future applications. In the journal Chem, the researchers have explained the see-through, non-emissive display’s ability to hasten the development of transparent, eye-friendly displays with better-quality readability for optimistic working conditions.

According to lead researcher Yu-Mo Zhang, it is not far when the non-emissive see-through display technology will becomeuniversal andan irreplaceable part of the Internet of Things, wherein both physical objects areinterrelatedvia software. The implementation of voltage will offer the electrochromic displays a power to continuously and reversibly manipulate the properties of light. The researchers have designed such technologies for further application in the windows, rearview mirrors,artificial irises, energy-saving electronic price tags,augmented virtual reality, and flashy billboards. However, there are few limitations such as low contrast ratios,poor stability, and restricted color variations, all of which inhibit electrochromic displays from exhibiting their technological potentials.

For overcoming the deficiencies, the researchers used a simple chemical approach wherein the metal ions persuaded the use of numerous switchable dyes to createspecific structures that could be later stabilized after forming the desired configuration. An electrical field is applied to the valences of metal ions to obtain a color change by forming a bond between the molecular dyes and metal ions.In the traditional electrochromic materials, the color-changing motifs and redox motifs are located at the same site whereas in the latest material an indirect-redox-color-changing system integrated with switchable dyes and multivalent metal ions is present. On testing this approach, the researchers found shift from a colorless display to black color with high coloration efficiency, low transmittance change voltage, and a white light contrast ratio, which is the most preferred for real transparent displays. For real-world application, the researchers to create low cost and simple preparation process for large scale production of optimized displays with high-quality performance.

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