Switchable polarized displays
AssigneeGentex Corporation
InventorsDavid J. Cammenga, Adam R. Heintzelman, Xiaoxu Niu
Life of this patent
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Abstract
A vehicular rearview assembly includes an electro-optic element. A first substrate defines a first element surface and a second element surface. A first polarizer is coupled to the second element surface. A second substrate is spaced away from the first substrate and defines a third element surface and a fourth element surface. An electro-optic material is positioned between the first and second substrates. A second polarizer is coupled to the second substrate. A display is configured to emit light having a first polarization toward the second polarizer.
Claims20
A vehicular rearview assembly, comprising:
- an electro-optic element, comprising:
- a first substrate defining a first element surface and a second element surface;
- a first polarizer coupled to the second element surface;
- a second substrate spaced away from the first substrate and defining a third element surface and a fourth element surface;
- and
- an electro-optic material positioned between the first and second substrates;
- a second polarizer coupled to the second substrate;
- and
- a display configured to emit light having a first polarization toward the second polarizer.
A vehicular rearview assembly, comprising:
- an electro-optic element, comprising:
- a first substrate defining a first element surface and a second element surface, wherein the first substrate defines a shaped edge along a periphery of the first element surface;
- an absorbing polarizer coupled with the second element surface;
- a second substrate spaced away from the first substrate and defining a third element surface and a fourth element surface;
- a reflective polarizer coupled to the third element surface;
- and
- an electro-optic material positioned between the first and second substrates;
- and
- a display configured to emit a first polarization of light into the second polarizer.
A vehicular rearview assembly, comprising:
- a liquid crystal element, comprising:
- a first substrate having a thickness from a first element surface to a second element surface of from about 2.0 mm to about 4.0 mm, wherein the front substrate defines a shaped edge having a radius of curvature of about 2.0 mm or greater along a periphery of the first surface;
- a concealment layer coupled with the second element surface;
- a wire grid absorbing polarizer coupled with the second element surface;
- a liquid crystal material coupled with the absorbing polarizer;
- a wire grid reflective polarizer coupled with the liquid crystal material;
- and
- a second substrate defining a third element surface and a fourth element surface;
- and
- a display configured to emit light into the reflective polarizer.
Dependencies are inferred from the claim text.