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US 5,499,124 AGranted
Polysilicon transistors formed on an insulation layer which is adjacent to a liquid crystal material
OwnerDuy-Phach Vu, Brenda D. Dingle +2inventors
InventorsDuy-Phach Vu, Brenda D. Dingle, Jason E. Dingle, Ngwe Cheong
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Abstract
The invention relates to the formation of arrays of thin film transistors (TFT's) on silicon substrates and the dicing and tiling of such substrates for transfer to a common module body. TFT's activate display electrodes formed adjacent the transistors after the tiles have been transferred.
Claims18
An active matrix liquid crystal display comprising;
- an array of transistor circuits formed with a layer of polycrystalline silicon over an insulating layer, the insulating layer being positioned on a first side of the polycrystalline layer;
- an optically transmissive substrate bonded to the array of transistor circuits on a second side of the polycrystalline layer with an adhesive;
- a light source that is optically coupled to the optically transmissive substrate such that light from the source is directed through the adhesive;
- and
- a liquid crystal material positioned between the insulating layer and a counterelectrode.
2 more elements
An active matrix liquid crystal display comprising;
- an array of transistor circuits formed with a layer of polycrystalline silicon on an insulating layer;
- an optically transmissive substrate bonded to the array of transistor circuits with an adhesive layer such that the adhesive layer and the layer of polycrystalline slicion are positioned between the optically transmissive substrate and the insulating layer;
- an array of pixel electrodes wherein each pixel electrode is connected to a transistor circuit in the array of transistor circuits;
- a light source that is optically coupled to the optically transmissive substrate;
- and
- a liquid crystal material positioned between the insulating layer and a counterelectrode.
3 more elements
A method of fabricating an active matrix liquid crystal display comprising:
- forming a polycrystalline silicon layer over an insulating layer and a supporting substrate;
- forming an array of transistors with the polycrystalline silicon layer to form an active matrix display circuit;
- bonding the polycrystalline silicon having the formed array of transistors onto an optically transmissive substrate with an adhesive layer;
- removing the supporting substrate from the display circuit;
- and
- positioning a liquid crystal material between an array of pixel electrodes conductively connected to the active matrix display circuit and a counterelectrode element, the insulating layer being positioned between the polycrystalline silicon and the liquid crystal material.
3 more elements
Dependencies are inferred from the claim text.