Patent for Sale:Display Area Co-filtering for Privacy and Glare
The display is augmented with an optical laminate, comprised of materials that are already mass produced for cost-sensitive display applications. A nearby window is augmented with a complementary laminate, bounding the display area.
To the display user within this area, the display appears normal and the window remains transparent. Likewise, to viewers outside of the display area, except that the window selectively obscures light form the display (selectively, i.e., the transparent window only blocks light from the display) – enhancing display privacy and information security, or reducing distraction.
In the opposite direction, any sunlight glare that is inbound to the display through the window is selectively filtered at the display surface - mitigating display washout and enhancing readability.
The laminates may be applied to most commercial off-the-shelf (COTS) displays, either during manufacture, or as an aftermarket enhancement. They impart light with polarization that is invisible to the naked eye, but permits them to filter each other’s light, selectively. The use of elliptical or circular polarization maintains compatibility with common polarized eyewear (critical for, e.g., in-vehicle applications) and eases cross-polarizer alignment requirements.
Offering two patents, authored by teir 1 intellectual property law firm, with 49 and 27 claims, respectively, and all submitted claims approved.
Primary Application of the Technology
(2) Avionics, Naval, Defense applications, which can benefit from either privacy or sunlight glare enhancement.
(3) Privacy of ATM machines, which may also benefit from glare mitigation in sunny areas.
(4) Office, Bank, Hospital applications, which can benefit from either privacy or sunlight glare enhancement.
(5) Privacy, sunlight glare enhancement, and reduced distraction/tailgating caused by in-vehicle entertainment /video systems.
The Problem Solved by the Technology
How the Technology Solves the Problem
(1) For privacy enhancement, certain other technologies can limit viewing angle, but do not prevent over-the-shoulder privacy intrusion.
(2) For sunlight glare mitigation, certain other technologies can reduce internally reflected sunlight, but don't prevent washout due to the internally scattered glare.
The novel/patented use of circular polarization maintains compatibility with common polarized eyewear (critical for, e.g., in-vehicle applications) and eases cross-polarizer alignment requirements (versus use of common linear polarization, the relative orientation of laminates can be varied).
Class 359: Optical: Systems And Elements
Optical elements included in this class are: Lenses; Polarizers; Diffraction gratings; Prisms; Reflectors; Filters; Projection screens; Optical Modulators; Optical Demodulators. Among the optical systems included in this class are: Compound lens systems; Light reflecting signalling systems (e.g., retroreflectors); stereoscopic systems; Binocular devices; Systems of lenticular elements; Systems involving light interference; Glare reducing systems; Light dividing and combining systems; Light control systems (e.g., light valves); building illumination with natural light; Systems for protecting or shielding elements; Optical systems whose operation depends upon polarizing, diffracting, dispersing, reflecting, or refracting light; kaleidoscopes. Further included are certain apertures, closures, and viewing devices of a specialized nature which involve no intentional reflection, refraction, or filtering of light rays. This class also includes optical elements combined with another type of structure(s) to constitute an optical element combined with a nonoptical structure or a perfection or improvement in the optical element.Subclass 371: Using polarized light
Subclass 601: GLARE OR UNWANTED LIGHT REDUCTION
Class 296: Land Vehicles: Bodies And Tops
Portion of a land vehicle, secured to the running-gear thereof, which operates as a receptacle or load carrier, together with the top or cover therefor.Subclass 97.1: Glare screen or visor