Active matrix liquid crystal having a counterelectrode substrate extended and connected to an external circuit
First Claim
1. An optical display, comprisingan active matrix-formed on a semiconductor substrate,a substantially transparent electrode pattern on a transparent substrate, said electrode pattern including portions for connection to an external device,mechanical and electrical connection attaching the semiconductor substrate to the transparent substrate through contacts from the active matrix to contacts on the transparent substrate for connection to an external device while providing a spacing between substrates to contain a material for producing an optical response according to applied electrical input, anda space between the substrates to contain said material.
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Accused Products
Abstract
A miniature image source includes a plurality of substrates, one formed of semiconductor material having an active matrix array and being relatively rough and the other being relatively smooth, a sealed space between the substrates containing liquid crystal material, electrically conductive members or terminal pads of the rough substrate being electrically and mechanically connected to electrically conductive members on the smooth substrate and are brought externally of the sealed space for exposure on the smooth substrate for external electrical connection. A method for making a miniature image source includes mechanically and electrically connecting electrical members of respective substrates using electrical material, sealing a space between the substrates for containing liquid crystal material using seal material, and elevating the temperature of the respective materials to activate first said electrical material and subsequently said seal material.
57 Citations
27 Claims
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1. An optical display, comprising
an active matrix-formed on a semiconductor substrate, a substantially transparent electrode pattern on a transparent substrate, said electrode pattern including portions for connection to an external device, mechanical and electrical connection attaching the semiconductor substrate to the transparent substrate through contacts from the active matrix to contacts on the transparent substrate for connection to an external device while providing a spacing between substrates to contain a material for producing an optical response according to applied electrical input, and a space between the substrates to contain said material.
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18. A method for making a display, comprising the steps of
forming an active matrix on a semiconductor substrate, forming a substantially transparent electrode pattern on a transparent substrate including portions for connection to an external device, attaching the semiconductor substrate to the transparent substrate through contacts from the active matrix to contacts on the transparent substrate for connection to an external device to provide a spacing between substrates to contain a material for producing an optical response according to applied electrical input, and sealing a space between the substrates to contain said material.
Specification