Metal working – Method of mechanical manufacture – Electrical device making
Patent
1979-06-06
1981-06-30
Gilden, Leon
Metal working
Method of mechanical manufacture
Electrical device making
G02F 113
Patent
active
042754941
ABSTRACT:
A method for manufacturing liquid crystal cells is disclosed, in which a pair of large-area glass substrates are put together, opposite to each other and spaced a small distance apart from each other, so that a plurality of liquid crystal cells are integrally formed between the glass substrates, and by splitting the glass substrate assembly, the individual cells are separated from one another. Each of the glass substrates has a plurality of regions defined on the surface thereof to serve as substrate sections for liquid crystal cell units and desired electrodes are formed on the regions. Grooves having a substantially U-shaped cross section are cut along the boundary lines bordering the respective regions on that surface of each substrate on which the desired electrodes are formed, while linear scratches are formed in the surface of the substrate opposite to the electrode-carrying surface, corresponding in position to the U-shaped grooves. The splitting operation is performed by placing the glass substrate assembly on two parallel supports and by subjecting the assembly to bending distortion with application of a pressing force. The configuration of the U-shape of the groove and the position at which the pressing force is applied is determined depending on the thickness of the glass substrate.
REFERENCES:
patent: 4094058 (1978-06-01), Yasutake et al.
Ishibashi Tadashi
Kohyama Masaharu
Gilden Leon
Hitachi , Ltd.
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