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US 7,248,305 B2Granted
LCD module and a combination switch using the same
AssigneeNEC Corporation
InventorsKazuo Ootsuta, Hiroshi Iwanaga
Life of this patent
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Abstract
An LCD module is associated with a pair of switches, one of which is depressed by pressing the LCD module to swivel in a seesaw operation. The LCD module has a front panel having a larger thickness than and thus capable of protecting the LC layer and the rear panel against a reasonable external load for pressing the front panel for switching. The LCD module is suited for use in a portable terminal having a smaller space for switches and LCD module.
Claims7
A combination switch structure comprising:
- a liquid crystal (LCD) module including a transparent front panel, a rear panel and a liquid crystal (LC) layer sandwiched between said transparent front panel and said rear panel, said transparent front panel having a central area opposing areas of said LC layer and said rear panel and a peripheral area extending from said central area;
- a casing inside which said LCD module is movably mounted;
- and
- a switch member operated by a movement of said peripheral area relative to said casing when said transparent front panel is applied with an external force.
1 more element
Dependencies are inferred from the claim text.