The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 2022
Filed:
Nov. 27, 2019
Agc Inc., Chiyoda-ku, JP;
AGC Inc., Chiyoda-ku, JP;
Abstract
A transparent substrate having an antiglare function includes first and second faces. The transparent substrate has a resolution index value T, a reflected image diffusivity index value R, and a sparkle index value S satisfying T≥0.25, R≥0.8, and 0.75≤S≤0.95, respectively. The resolution index value T is calculated as (luminance of zero-degrees transmission light)/(luminance of total transmission light). The reflected image diffusivity index value R is calculated as (R+R)/(2×R), where Rdenotes a luminance of reflected light reflected at first angle α, and R, Rdenote luminance of reflected light at the second angle α, the third angle α, respectively, with respect to the first angle α. The sparkle index value S is calculated as 1−(S/S), where the first sparkle Sand the second sparkle Sdenote a sparkle value of the transparent substrate and a sparkle value of a glass substrate, respectively.