Press key structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DARFON ELECTRONICS (SUZHOU) CO LTD
- Publication Date
- 2016-07-13
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
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Abstract
Description
technical field
[0001] The present invention relates to a key structure, in particular, the present invention relates to a key structure that improves the pressing feeling and eliminates the bottom plate. Background technique
[0002] Conventional keyboard structures generally use thin film circuit layers as switching elements for signal generation. Generally speaking, the thin film circuit layer is composed of an upper circuit layer, a lower circuit layer and a spacer layer separating the upper and lower circuit layers, wherein the upper and lower circuit layers have a plurality of corresponding switch contacts as trigger circuits for a plurality of keys. When the keycap is pressed to trigger the membrane circuit layer, the upper circuit layer is deformed so that the switch contacts of the upper circuit layer contact the corresponding switch contacts of the lower circuit layer, and then the membrane switch is turned on to generate a signal. However, the thin film circuit l...