Liquid crystal display having a low profile surface mount switch
US6043855A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1998 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Mar 31, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133308
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is an avionics display device adapted for insertion into an avionics panel of an aircraft. The avionics display device includes a liquid crystal display having a liquid crystal display element and a bezel surrounding the liquid crystal display element. The avionics display device also includes a low profile rotary switch mounted on the bezel of the liquid crystal display to save avionics panel space in the aircraft. The low profile rotary switch includes a printed circuit board positioned beneath the bezel and having a plurality of electrical pads formed thereon. The switch also includes a contact member positioned adjacent the printed circuit board and having a first contact formed thereon. Rotation of the contact member causes the first contact to be electrically coupled to one of the plurality of electrical pads formed on the printed circuit board. A knob is coupled to the contact member such that rotation of the knob causes rotation of the contact member. The detent mechanism of the switch is positioned in the knob to lower the profile of the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.