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US 6,556,189 B1Granted
Touch panel device
AssigneeNissha Printing Co., Ltd.
InventorsKazuhiko Takahata, Takao Hashimoto, Kazuhiro Nishikawa, Hiroshi Kirimura
Life of this patent
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Abstract
The sides of a touch panel are entirely covered with and sealed in an outer package. The touch panel includes a transparent insulating liquid that is sealed in a space formed by adhering an upper electrode film and a lower electrode body at edges thereof. The transparent insulating liquid transparently shows or exposes at least an operation area of the touch panel.
Claims16
A touch panel device having an operation area, said touch panel device comprising:
- an upper electrode film having edges, an upper surface and a lower surface;
- a lower electrode body having edges, and upper surface and a lower surface, a periphery of said upper surface of said lower electrode body being adhered to a periphery of said lower surface of said upper electrode film thereby forming space between said upper electrode film and said lower electrode body;
- a transparent insulating liquid sealed in the space between said upper electrode film and said lower electrode body;
- and
- an outer package continuously covering and sealing said edges of said upper electrode film, said edges of said lower electrode body and a periphery of said lower surface of said lower electrode body, said outer package comprising a material and being disposed so as to transparently show said operation area as viewed from a direction facing said upper electrode film and from a direction facing said lower electrode body.
2 more elements
Dependencies are inferred from the claim text.