Screen structure, display panel and electronic equipment using the same, and method of manufacturing the same
AssigneeCanon Kabushiki Kaisha
InventorsAkemi Watanabe, Osamu Takamatsu
Life of this patent
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Abstract
A screen structure has a transparent substrate and a color filter on the transparent substrate, and light from a source of luminescence transmits the color filter and the transparent substrate. The transparent substrate has a height difference specified by a refractive index of the transparent substrate, a refractive index of the color filter, and a wavelength of the light which transmits the color filter in an interface with the color filter.
Claims14
A screen structure which has a transparent substrate and a color filter on the transparent substrate, wherein the color filter has a plurality of regions, and the substrate has a height difference with a value R expressed in the following Formula 1 in an interface with the color filter inside each of the regions:
- R=(m+½)λp/|Ncf−Ng| Formula 1
- where, m denotes a natural number including zero, λp denotes a dominant wavelength of light, which transmits the color filter, Ncf denotes a refractive index of the color filter, and Ng denotes a refractive index of the transparent substrate.
A screen structure which has a transparent substrate and a color filter on the transparent substrate, wherein the transparent substrate has unevenness in an interface with the color filter over almost an entire area where the transparent substrate forms the interface with the color filter, and a ten-point average roughness of the unevenness, with letting a reference length be 0.8 mm or less, is larger than or equal to a value Rz expressed by the following Formula 2:
- Rz=λp/2|Ncf−Ng| Formula 2
- where, λp denotes a dominant wavelength of light, which transmits the color filter, Ncf denotes a refractive index of the color filter, and Ng denotes a refractive index of the transparent substrate.
Dependencies are inferred from the claim text.