Lighting system for transparent liquid crystal display
US8988635B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2012 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Jan 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2023/0033
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Exemplary embodiments provide a lighting system for a transparent LCD having opposing vertical edges, the system having a mullion lighting assembly positioned adjacent to each vertical edge of the transparent LCD, each mullion lighting assembly having sidewalls defining a center channel. A plurality of LEDs are positioned along the sidewall of each mullion assembly and on a side of the sidewall that opposes the center channel. The LEDs are preferably placed in conductive thermal communication with the sidewall. A fan is positioned to draw cooling air through the center channel. A lens may be positioned adjacent to the LEDs to collimate the light. Louvers may be used to direct the emitted light away from the LCD, so as to reflect off the goods within a display case or the cavity within the display case. Some embodiments may use a flange to direct the emitted light away from the LCD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.