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US 10,312,034 B1Granted
Keyboard device
AssigneePrimax Electronics Ltd.
InventorsBo-An Chen, Chin-Sung Pan
Life of this patent
Estimating the term…
Abstract
A keyboard device includes plural keys, a supporting plate and a membrane switch circuit member. The membrane switch circuit member includes a first board, a second board, a third board and a fourth board. The first board includes plural first contacts. The second board includes plural second contacts and plural first openings. The third board includes plural third contacts and plural second openings. The fourth board includes plural fourth contacts. The plural first contacts, the plural first openings and the plural third contacts are collaboratively defined as a first key matrix. The plural second contacts, the plural second openings and the plural fourth contacts are collaboratively defined as a second key matrix.
Claims10
A keyboard device, comprising:
- at least one key exposed outside the keyboard device;
- and
- a membrane switch circuit member located under the at least one key, wherein when the membrane switch circuit member is pressed by the at least one key, at least one key signal is correspondingly generated, wherein the membrane switch circuit member comprises:
- a first board located under the at least one key, and comprising at least one first contact;
- a second board located under the first board, and comprising at least one second contact and at least one first opening;
- a third board located under the second board, and comprising at least one third contact and at least one second opening;
- and
- a fourth board located under the third board, and comprising at least one fourth contact,
- wherein the at least one first contact, the at least one first opening and the at least one third contact are collaboratively defined as a first key matrix, wherein the first key matrix comprises a first key switch, and the at least one second contact, the at least one second opening and the at least one fourth contact are collaboratively defined as a second key matrix, wherein the second key matrix comprises a second key switch, wherein the first and second key matrices are not overlapped with each other.
6 more elements
A keyboard device, comprising:
- at least one key exposed outside the keyboard device;
- and
- a membrane switch circuit member located under the at least one key, wherein when the membrane switch circuit member is pressed by the at least one key, at least one key signal is correspondingly generated, wherein the membrane switch circuit member comprises:
- a first board located under the at least one key, and comprising at least one first contact;
- a second board located under the first board, and comprising at least one second contact and at least one first opening;
- a third board located under the second board, and comprising at least one third contact and at least one second opening;
- and
- a fourth board located under the third board, and comprising at least one fourth contact,
- wherein the at least one first contact, the at least one first opening and the at least one third contact are collaboratively defined as a first key matrix, wherein the first key matrix comprises a first key switch, and the at least one first contact, the at least one first opening, the at least one second opening and the at least one fourth contact are collaboratively defined as a second key matrix, wherein the second key matrix comprises a second key switch, wherein the first and second key matrices are not overlapped with each other.
6 more elements
A keyboard device, comprising:
- at least one key exposed outside the keyboard device;
- and
- a membrane switch circuit member located under the at least one key, wherein when the membrane switch circuit member is pressed by the at least one key, at least one key signal is correspondingly generated, wherein the membrane switch circuit member comprises:
- a first board located under the at least one key, and comprising at least one first contact;
- a second board located under the first board, and comprising at least one second contact and at least one first opening;
- a third board located under the second board, and comprising at least one third contact and at least one second opening;
- and
- a fourth board located under the third board, and comprising at least one fourth contact,
- wherein the at least one second contact, the at least one second opening and the at least one fourth contact are collaboratively defined as a first key matrix, wherein the first key matrix comprises a first key switch, and the at least one first contact, the at least one first opening, the at least one second opening and the at least one fourth contact are collaboratively defined as a second key matrix, wherein the second key matrix comprises a second key switch, wherein the first and second key matrices are not overlapped with each other.
6 more elements
Dependencies are inferred from the claim text.