Waterproof pressing structure and membrane switch circuit board using the same
AssigneesLite-On Electronics (Guangzhou) Limited, Lite-On Technology Corporation
InventorJen-Chieh Huang
Life of this patent
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Abstract
A waterproof pressing structure including a first membrane, at least one first contact, a second membrane, at least one second contact, an insulation layer and a hydrophobic material is provided. The first contact is located on the first membrane, the second contact is located on the second membrane, and the insulation layer is interposed between the first membrane and the second membrane, wherein the first membrane, the second membrane and the insulation layer are stacked in a vertical direction, and the hydrophobic material is respectively formed on the two surfaces of the first contact and the second contact to form a low surface tension zone between the first contact and the second contact.
Claims20
A waterproof pressing structure, comprising:
- a first membrane;
- at least one first contact located on the first membrane;
- a second membrane;
- at least one second contact located on the second membrane;
- an insulation layer interposed between the first membrane and the second membrane, wherein the first membrane, the second membrane and the insulation layer are stacked in a vertical direction;
- and
- a hydrophobic material respectively formed on two surfaces of the first contact and the second contact to form a low surface tension zone between the first contact and the second contact.
A waterproof pressing structure, comprising:
- a first membrane;
- at least one first contact located on the first membrane;
- a second membrane;
- at least one second contact located on the second membrane;
- an insulation layer interposed between the first membrane and the second membrane, wherein the first membrane, the second membrane and the insulation layer are stacked in a vertical direction;
- and
- a hydrophobic material respectively formed in the first contact and the second contact to form a low surface tension zone between the first contact and the second contact.
A membrane switch circuit board, comprising:
- a first membrane;
- a first wiring layer having at least one first contact located on the first membrane;
- a second membrane;
- a second wiring layer having at least one second contact located on the second membrane;
- an insulation layer interposed between the first membrane and the second membrane, wherein the first membrane, the second membrane and the insulation layer are stacked in a vertical direction;
- and
- a hydrophobic material respectively formed on two surfaces of the first contact and the second contact or formed in the first contact and the second contact to form a low surface tension zone between the first contact and the second contact.
Dependencies are inferred from the claim text.