Microdisplay packaging system
First Claim
Patent Images
1. A device comprising:
- a semiconductor substrate;
a pixel cell array integrated with the semiconductor substrate;
a liquid crystal layer in contact with the pixel cell array;
a substantially transparent protective cover coupled to the liquid crystal layer;
a base coupled to the semiconductor substrate,wherein thermal expansion characteristics of the base are substantially similar to thermal expansion characteristics of the protective cover; and
a chip carrier coupled to the base, the chip carrier defining a recess, the base mounted within the recess.
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Abstract
Some embodiments provide a microdisplay integrated circuit (IC), a substantially transparent protective cover coupled to the microdisplay IC, and a base coupled to the microdisplay IC. Thermal expansion characteristics of the base may be substantially similar to thermal expansion characteristics of the protective cover. According to some embodiments, at least one set of imaging elements is fabricated on an upper surface of a semiconductor substrate, and a base is affixed to a lower surface of the semiconductor substrate to generate substantially negligible mechanical stress between the semiconductor substrate and the base.
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Citations
8 Claims
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1. A device comprising:
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a semiconductor substrate; a pixel cell array integrated with the semiconductor substrate; a liquid crystal layer in contact with the pixel cell array; a substantially transparent protective cover coupled to the liquid crystal layer; a base coupled to the semiconductor substrate, wherein thermal expansion characteristics of the base are substantially similar to thermal expansion characteristics of the protective cover; and a chip carrier coupled to the base, the chip carrier defining a recess, the base mounted within the recess. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system comprising:
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an Ultra High Pressure light source to emit light; a condenser lens to condense the light; a display device to receive the condensed light and to emit image light, the display device comprising; a semiconductor substrate; a pixel cell array integrated with the semiconductor substrate; a liquid crystal layer in contact with the pixel cell array; a substantially transparent protective cover coupled to the liquid crystal layer; and a base coupled to the semiconductor substrate, thermal expansion characteristics of the base being substantially similar to thermal expansion characteristics of the protective cover; and a projector lens to project the image light; wherein the display device comprises; a chip carrier, wherein the chip carrier defines a recess, and wherein the base is mounted within the recess.
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8. A device comprising:
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a semiconductor substrate; a pixel cell array integrated with the semiconductor substrate; a liquid crystal layer in contact with the pixel cell array; a substantially transparent protective cover coupled to the liquid crystal layer; a base coupled to the semiconductor substrate, wherein thermal expansion characteristics of the base are substantially similar to thermal expansion characteristics of the protective cover; and an electrode disposed between the liquid crystal layer and the protective cover, wherein the protective cover is coupled to electrode.
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Specification