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US 9,070,499 B2Granted
Light emitting key
AssigneeUniversal Cement Corporation
InventorsChih-Sheng Hou, Chia-Hung Chou, Yann-Cherng Chern
Life of this patent
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Abstract
A light emitting key is disclosed. A through hole is made through piezoresistive layer; a light source is arranged under the bottom of the light emitting key. When the light source is turned on, light beams shall emit out of the top substrate. The light emitting effect of the key facilitates it to be used in a dark area such as an aircraft flying in the night sky.
Claims17
A light emitting key, comprising:
- a top electrode;
- a top piezoresistive layer, configured on a bottom of the top electrode;
- a bottom piezoresistive layer, configured under the top piezoresistive layer;
- a bottom electrode, configured on a bottom of the bottom piezoresistive layer;
- a top through hole, made through the top piezoresistive layer;
- a bottom through hole, made through the bottom piezoresistive layer;
- and
- a gap, reserved between the top piezoresistive layer and the bottom piezoresistive layer.
5 more elements
A light emitting key, comprising:
- a top electrode;
- a piezoresistive layer, configured on a bottom of the top electrode;
- a bottom electrode, configured under the piezoresistive layer;
- a through hole, made through the piezoresistive layer;
- and
- a gap, reserved between the piezoresistive layer and the bottom electrode.
3 more elements
A light emitting key, comprising:
- a top electrode;
- a piezoresistive layer, configured on a bottom of the top electrode;
- a bottom electrode, configured under the piezoresistive layer;
- a through hole, made through the piezoresistive layer;
- and
- a gap, reserved between the piezoresistive layer and the top electrode.
3 more elements
Dependencies are inferred from the claim text.