High-transmittance shadow-eliminating conductive glass and manufacturing method thereof

Abstract

The invention relates to the technical field of electronic display device glass panels, in particular to high-transmittance shadow-eliminating conductive glass which comprises a glass substrate, and nanoscale antireflection holes are etched in at least one face of the glass substrate. A thickness compensation layer is arranged on the surface, etched with the nanoscale antireflection holes, of the glass substrate, a transition film layer and an indium tin oxide film layer are sequentially stacked on the thickness compensation layer, and an electrode pattern is etched on the indium tin oxide film layer; wherein the transition film layer comprises a first interference layer, an ultraviolet absorption layer and a second interference layer which are stacked in sequence, the first interference layer and the second interference layer are made of niobium pentoxide, and the ultraviolet absorption layer is made of titanium dioxide; the invention also provides a preparation method of the high-transmittance shadow-eliminating conductive glass. The shadow eliminating effect is remarkable, the transmissivity of the conductive glass is enhanced, the reflectivity of the conductive glass is reduced, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of glass panels of electronic display devices, in particular to high-transmission and shadow-eliminating conductive glass and a manufacturing method thereof. Background technique [0002] Capacitive touch screen is a development trend. Its preparation method is mainly to coat a layer of conductive film (that is, indium tin oxide, referred to as: ITO) on the surface of ordinary glass to make it conductive. This is conductive glass. Indium tin oxide transparent conductive film glass is a high-tech product obtained by sputtering indium tin oxide conductive film coating on ultra-thin glass and high-temperature annealing treatment by using planar magnetron technology. However, the current conductive glass either does not meet the requirements of resistance, or the uniformity of resistance is not good, or the light transmittance is too low, etc., and it does not have the function of shadow elimination, so it canno...

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Problems solved by technology

[0003] For example, in the prior art, the conductive glass produced in the patent No. CN104834420A "a conductive glass for capacitive touch screen and its preparation process" has a transmittance of ≥ 88.5%, and its reflectivity is also reduced. The capacitive touch screen of conductive glass improves the shadow removal effect while being ultra-thin. However, in this patent, the shadow removal effect is only performed through the shadow removal layers arranged on both sides of the glass substrate, and the shadow removal effect still needs to be further improved.

As another example, the patent No. is CN106587655A in the "disappearing anti-reflection conductive glass" by setting the stacked TiO 2 layer, SiO 2 layer and ITO layer, using TiO with different refractive index 2 film and SiO 2 The film layer plays the role of image elimination, anti-reflection and anti-reflection. It can be seen from this that the material used in this patent is single, and there are many film layers, and the thickness of the film layer is thicker. The effect is limited, and it is easy to cause waste of resources, only relying on TiO 2 film and SiO 2 The refractive index of the film layer is different for shadow elimination, and its shadow elimination effect needs to be further optimized

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