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:
Mar. 07, 2023
Filed:
Jul. 21, 2021
AU Optronics Corporation, Hsin-Chu, TW;
AU OPTRONICS CORPORATION, Hsin-Chu, TW;
Abstract
A biological feature identification device includes a display device and a sensing device. The display device includes multiple pixels arranged along a first direction. The pixels each has a sub-pixel having a display element and a switch element. The sensing device includes multiple sensing units arranged along a second direction. The sensing units each has a sensing element. When the spatial frequency relation is |4*(RE/100)−(1/SU)|>A, the first and second directions are the same, and the biological feature identification device satisfy the criteria: A<|4*(RE/100)−(1/SU)|<B. When the spatial frequency relation is |4*(RE/100)−(1/SU)|≤A, the first and second directions form an angle, and the biological feature identification device satisfy the criteria: A<|4*(RE/100)−{1/[SU*Cos(α)]}|<C. RE is the resolution of the display device, SU is the sensing unit size, α is the angle, 0°<α<90°, B and C>A, and A is not equal to zero.