Switch structure for display screen
US6426738B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1999 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | Dec 23, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2231/036
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A switch structure for a display screen includes a liquid-crystal display (16) that includes a display screen (16a) and is capable of displaying on the display screen (16a) an image that indicates various information comprising switch information, and a switch portion (20) disposed above the liquid-crystal display (16). The switch portion (20) includes a switch body (22) disposed on the liquid-crystal display (16), the switch body (22) being operative to be switched in one of an on state and an off state thereof, and a operation plate (23) disposed above the display screen (16a) of the liquid-crystal display (16), wherein when the operation plate (23) is depressed, the state of the switch body (22) is switched. The operation plate (23) includes an optical portion (24) through which an image indicating the switch information on the display screen (16a) is transmitted. The optical portion (24) forms the transmitted image to enlarge a visible range with which the image is made to be visible. It is preferable that the optical portion (24) of the operation plate has a concave lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.