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US 5,710,612 AGranted
Liquid crystal device and manufacturing method therefor with anisotropic conductive adhesive connecting glass substrate and glass auxiliary substrate
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorAkira Mase
Life of this patent
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Abstract
A liquid crystal device and a manufacturing method thereof are described. The device comprises a liquid crystal panel and an auxiliary panel formed with an IC circuit for supplying driving signals to the liquid crystal device. The auxiliary substrate is separately provided with the circuit and the function thereof is tested in advance of the assembling with the liquid crystal panel. By this procedure, the yield is substantially improved.
Claims8
A liquid crystal device comprising:
- first and second glass substrates;
- electrode arrangements respectively formed on inside surfaces of said substrates;
- a liquid crystal layer disposed between said first and second substrates;
- and
- circuits respectively formed on at least one glass auxiliary substrate and respectively connected with at least one of said electrode arrangements for supplying driving signals to said one electrode arrangement wherein said electrical connection is made through an anisotropic conductive adhesive fixing said auxiliary substrate in a predetermined position with respect to said electrode arrangement and simultaneously providing an electrical connection between both (a) said circuit formed on the auxiliary substrate and (b) the one electrode arrangement formed on the inside of one of the substrates, wherein at least one of said first and second substrates extends beyond the edge of the other in order to provide terminals of said one electrode arrangement with which said circuit makes electric contact.
2 more elements
A liquid crystal device comprising:
- first and second glass substrates;
- an electrode arrangement formed on the inside surfaces of said substrates;
- a liquid crystal layer disposed between said first and second substrates;
- and
- a circuit formed on at least one glass auxiliary substrate and connected with said electrode arrangement for supplying driving signals to said electrode arrangement wherein said electrical connection is made through an anisotropic conductive adhesive which contacts both (a) said circuit formed on the auxiliary substrate and (b) the electrode arrangement formed on the inside of one of the substrates.
2 more elements
A liquid crystal device comprising:
- first and second glass substrates;
- electrode arrangements respectively formed on inside surfaces of said substrates;
- a liquid crystal layer disposed between said first and second substrates;
- and
- at least one glass auxiliary substrate on which semiconductor chips and electrical wiring for supplying driving signals to said liquid crystal layer are formed,
- wherein said first substrate extends beyond the edge of said second substrate in order to provide terminals of said electrode arrangement;
- and
- wherein said auxiliary substrate is directly attached to the extended portion of the first substrate through an anisotropic conductive adhesive so that said electrical wiring formed on said auxiliary substrate is electrically connected to said terminals.
5 more elements
Dependencies are inferred from the claim text.