Heads up display system
First Claim
Patent Images
1. A heads up display system of a vehicle, comprising:
- a combiner screen comprising;
a first substantially transparent substrate defining a first surface and a second surface;
a second substantially transparent substrate defining a third surface and a fourth surface;
a primary seal disposed between the first and second substrates, wherein the seal and the first and second substrates define a cavity therebetween;
an electro-optic material positioned within the cavity; and
a reflective polarizer positioned on one of the first and second surfaces, wherein the reflective polarizer comprises a wire grid polarizer and is positioned on the second surface of the first substrate and is electrically connected to the electro-optic material; and
a projector for projecting light having a first polarization toward the first surface of the first substrate.
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Abstract
A heads up display system of a vehicle including a combiner screen having a first substantially transparent substrate defining a first surface and a second surface, a second substantially transparent substrate defining a third surface and a fourth surface. A primary seal is disposed between the first and second substrates. The seal and the first and second substrates define a cavity therebetween. An electro-optic material is positioned within the cavity and a reflective polarizer is positioned on one of the first and second surfaces. A projector projects light having a first polarization toward the first surface of the first substrate.
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Citations
17 Claims
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1. A heads up display system of a vehicle, comprising:
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a combiner screen comprising; a first substantially transparent substrate defining a first surface and a second surface; a second substantially transparent substrate defining a third surface and a fourth surface; a primary seal disposed between the first and second substrates, wherein the seal and the first and second substrates define a cavity therebetween; an electro-optic material positioned within the cavity; and a reflective polarizer positioned on one of the first and second surfaces, wherein the reflective polarizer comprises a wire grid polarizer and is positioned on the second surface of the first substrate and is electrically connected to the electro-optic material; and a projector for projecting light having a first polarization toward the first surface of the first substrate. - View Dependent Claims (2, 3, 4, 5)
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6. A combiner screen for a heads up display, comprising:
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at least two substantially transparent substrates positioned in a spaced apart configuration; an electro-optic material positioned between the at least two substantially transparent substrates; a reflective polarizer positioned between the electro-optic material and at least one of the substrates, wherein the reflective polarizer is electrically coupled to the electro-optic material; and an electrically conductive layer, wherein the reflective polarizer and the electrically conductive layer are positioned on opposite sides of the electro-optic material. - View Dependent Claims (7, 8, 9, 10)
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11. A heads up display system of a vehicle, comprising:
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a projector for projecting light of a first polarization; and a combiner screen positioned away from a vehicle windshield comprising; a substantially transparent substrate defining a first surface and a second surface, wherein the substrate is curved along at least two axes; and a reflective polarizer positioned on the second surface of the substantially transparent substrate, wherein the combiner screen has a reflectance of the first polarization of light greater than about 40%. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification