Wiring Substrate MoOx Layer for Display Light Reflection

The patent applies composite materials by stacking a metal material layer (first material layer) with a molybdenum oxide layer (second material layer containing MoOx where 1.9≤x≤2.1). This composite structure combines the high electrical conductivity of metal materials with the light-absorbing properties of molybdenum oxide, thereby reducing light reflectance while maintaining electrical conductivity. The patent explicitly states that the first and second material layers are stacked to achieve both low electrical resistance and suppressed light reflection.

The patent applies local quality by creating a multi-layer structure where different layers have different functions: the metal material layer provides electrical conductivity while the molybdenum oxide layer specifically addresses light reflectance. Each layer is optimized for its local function, with the metal layer ensuring signal transmission and the molybdenum oxide layer (with controlled thickness of 400 Å or greater) suppressing external light reflection locally at the wire surface.

The patent applies parameter changes by precisely controlling the composition parameter x in MoOx (where 1.9≤x≤2.1) and the thickness parameter of the second material layer (400 Å or greater). By optimizing these parameters, the patent achieves effective light reflectance suppression while maintaining processability and electrical conductivity, thereby improving display quality without excessive complexity increase.

The patent applies color changes by utilizing the optical properties of molybdenum oxide to alter the light interaction characteristics of the signal wires. The molybdenum oxide layer absorbs external light that would otherwise be reflected by the metal layer, thereby changing the overall optical appearance and reducing glare, which improves display quality by enhancing contrast and image clarity.