A substrate for an electronic device, comprising: a translucent glass substrate having a first main surface and a second main surface, the first and second main surfaces facing each other, wherein the translucent glass substrate has a glass substrate; and an electrode pattern formed on the first main surface of the translucent glass substrate, wherein the first main surface is a surface which forms a waviness made up of curved faces, and a ratio Ra/Rλa of waviness roughness Ra of the surface which forms the waviness to wavelength Rλa of the waviness is from 1.0×10 -4 to 3.0×10 -2, characterised in that the waviness of the surface has a wavelength Rλa of greater than 50 μm, and in that the translucent glass substrate has a scattering layer as a glass layer formed on a surface on a first main surface side of the glass substrate, wherein the glass layer has a second surface adjoining the surface on the first main surface side of the glass substrate and a first surface opposite to the second surface, and the first surface is a surface which forms the waviness made up of curved faces and acts as the first main surface, wherein the scattering layer is made from a glass comprising a base material which has a first refractive index for at least one of a plurality of wavelengths of transmitted light, a plurality of scattering materials being dispersed in the base material and having a second refractive index different from the first refractive index of the base material, and wherein distribution of the scattering materials in the scattering layer diminishes from the inside of the scattering layer toward a translucent electrode formed as a first electrode on the first surface, wherein a density ρ 3 of the scattering materials at a distance x (x≤0.2 μm) from a surface of the scattering layer on a translucent electrode side and a density ρ 4 of the scattering materials at a distance x of 2 μm satisfy ρ 4 >ρ 3. a translucent glass substrate having a first main surface and a second main surface, the first and second main surfaces facing each other, wherein the translucent glass substrate has a glass substrate; and an electrode pattern formed on the first main surface of the translucent glass substrate, wherein the first main surface is a surface which forms a waviness made up of curved faces, and a ratio Ra/Rλa of waviness roughness Ra of the surface which forms the waviness to wavelength Rλa of the waviness is from 1.0×10 -4 to 3.0×10 -2, characterised in that the waviness of the surface has a wavelength Rλa of greater than 50 μm, and in that the translucent glass substrate has a scattering layer as a glass layer formed on a surface on a first main surface side of the glass substrate, wherein the glass layer has a second surface adjoining the surface on the first main surface side of the glass substrate and a first surface opposite to the second surface, and the first surface is a surface which forms the waviness made up of curved faces and acts as the first main surface, wherein the scattering layer is made from a glass comprising a base material which has a first refractive index for at least one of a plurality of wavelengths of transmitted light, a plurality of scattering materials being dispersed in the base material and having a second refractive index different from the first refractive index of the base material, and wherein distribution of the scattering materials in the scattering layer diminishes from the inside of the scattering layer toward a translucent electrode formed as a first electrode on the first surface, wherein a density ρ 3 of the scattering materials at a distance x (x≤0.2 μm) from a surface of the scattering layer on a translucent electrode side and a density ρ 4 of the scattering materials at a distance x of 2 μm satisfy ρ 4 >ρ 3.