Constricted convection cooling system for an electronic display
AssigneeManufacturing Resources International, Inc.
InventorWilliam Dunn
Life of this patent
Estimating the term…
Abstract
Preferred embodiments provide a cooling system for an electronic display. A constricted convection channel is used to force cooling air against a posterior surface of the electronic display. Fans may be used to propel or pull air through the constricted convection channel in a substantially uniform manner. A refrigeration unit or thermoelectric module may be employed to cool or heat the air traveling through the constricted convection channel. Some embodiments include a closed loop which extracts heat (or adds heat) to the front display surface.
Claims20
A system for cooling an electronic display having a posterior display surface and contained within a housing, the system comprising:
- a constricted convection plate placed posterior to the posterior display surface;
- two side panels placed adjacent to the constricted convection plate and the posterior display surface, defining a constricted convection channel having an entrance and an exit;
- and
- a fan placed to draw air from outside of the housing through the constricted convection channel.
A liquid crystal display (LCD) comprising:
- a liquid crystal stack;
- a backlight assembly behind the liquid crystal stack and comprising:
- a metal core printed circuit board (PCB) having front and back sides;
- a plurality of LEDs mounted on the front side of the PCB;
- a posterior surface on the rear side of the PCB;
- a constricted convection plate placed behind the posterior surface of the PCB, defining a constricted convection channel having an entrance and an exit;
- and
- a fan positioned to draw air through the constricted convection channel.
A system for cooling an electronic display comprising:
- an electronic display comprising a front display surface and a posterior surface;
- a constricted convection plate and a pair of sidewalls behind the posterior surface of the display, defining a constricted convection channel having an entrance and exit;
- a gaseous closed loop traveling across the front display surface, behind the constricted convection plate, and returning to the front display surface;
- a means for propelling gas around the closed loop;
- a means for cooling the gas in the closed loop;
- and
- a means for forcing air through the constricted convection channel.
Dependencies are inferred from the claim text.