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US 8,362,488 B2Granted
Flexible backplane and methods for its manufacture
AssigneeSiPix Imaging, Inc.
InventorsYi-Shung Chaug, Ching-Shon Ho
Life of this patent
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Abstract
The present invention is directed to a flexible backplane for direct drive display devices and methods for its manufacture. The flexible backplane has many advantages. Because there is no need for a polyimide layer and only one layer of metal foil is used, the backplanes may be manufactured at a relatively low cost.
Claims11
A backplane for a direct drive display device, which comprises:
- (i) a plastic film substrate, one side of said substrate comprises an active area and an inactive area, wherein said active area comprises at least one segment electrode and said inactive area comprises at least one connecting terminal, and the other side of said substrate comprises at least a wire;
- and
- (ii) conductive via holes through which said segment electrode and said connecting terminal are individually connected to said wire,
- wherein said active area, not said inactive area, is covered by a layer of display cells, and only the connecting terminal is directly linked to a driving mechanism, and gaps between said segment electrodes and crevices of the via holes are covered by a protective layer formed from a composition comprising a polar oligomeric or polymeric material having a glass transition temperature below about 100° C. and the resulting layer has an average crosslinking density of below about 1 crosslink point per 80 molecular weight.
1 more element
Dependencies are inferred from the claim text.