Transreflective instrument display
First Claim
Patent Images
1. An instrument display for an automotive vehicle comprising:
- a planar reverse image light emitting display panel;
a transflector surface positioned at a predetermined angle with respect to the display panel, the transflector surface having a P-plane reflectance and a S-plane reflectance;
a coating disposed on the transflector surface adapted to increase the P-plane reflectance of the transflector surface; and
an internally illuminated light emitting diode instrument pointer positioned behind the transflector surface adapted to transmit light through the transflector surface;
wherein the transflector surface and the coating transmit light simultaneously with the instrument pointer in a predetermined direction to form a single image.
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Accused Products
Abstract
A transreflective instrument display has a generally planar reverse image light emitting display panel, a transflector surface positioned at a predetermined angle with respect to the display panel. The transflector has a P-plane reflectance and S-plane reflectance. A illuminated pointer is positioned behind the transflector. The display is formed of light transmitted from the pointer and reflecting light from said display panel simultaneously to form an image. The transflector is preferably coated with a coating that increases the reflectivity of the P-plane polarization of the transflector.
50 Citations
1 Claim
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1. An instrument display for an automotive vehicle comprising:
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a planar reverse image light emitting display panel; a transflector surface positioned at a predetermined angle with respect to the display panel, the transflector surface having a P-plane reflectance and a S-plane reflectance; a coating disposed on the transflector surface adapted to increase the P-plane reflectance of the transflector surface; and an internally illuminated light emitting diode instrument pointer positioned behind the transflector surface adapted to transmit light through the transflector surface; wherein the transflector surface and the coating transmit light simultaneously with the instrument pointer in a predetermined direction to form a single image.
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Specification
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Current AssigneeFord Motor Company
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Original AssigneeFord Motor Company
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InventorsSaari, Scott D., Schulz, Kathleen M., Angell, Daniel K.
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Primary Examiner(s)Crosland, Donnie L.
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Application NumberUS08/569,383Time in Patent Office1,040 DaysField of Search340/815.45, 340/815.47, 340/815.78, 340/815.79, 340/525, 340/461, 340/980, 340/462, 345/7, 345/8, 116/286-288, 116/309, 116/310, 116/62.1, 362/23, 362/26, 362/29, 362/30, 362/31US Class Current340/815.45CPC Class CodesB60Q 3/14 lighting through the surfac...B60Q 3/18 for varying the light inten...
