Isolated gas heating system for an electronic display

This application is a non-provisional patent application and claims priority to U.S. Provisional Application No. 61/076,126 filed Jun. 26, 2008; 61/057,599 filed May 30, 2008; and 61/039,454 filed Mar. 26, 2008, which are hereby incorporated by reference in their entirety. This application is also a continuation in part of U.S. patent application Ser. No. 11/941,728 filed Nov. 16, 2007, which is hereby incorporated by reference in its entirety. This application is also a continuation in part of U.S. patent application Ser. No. 12/191,834 filed Aug. 14, 2008, which is hereby incorporated by reference in its entirety. This application is also a continuation in part of U.S. patent application Ser. No. 12/234,307 filed Sep. 19, 2008, which is hereby incorporated by reference in its entirety. This application is also a continuation in part of U.S. patent application Ser. No. 12/234,360 filed Sep. 19, 2008.

This invention generally relates to heating systems and in particular to a heating system and method for electronic displays.

In a typical electronic display, heat transfer systems typically seek to remove heat from the display. This may be done in any number of ways, but usually these systems generally attempt to remove heat from the electronic components in a display through sidewalls of the display housing.

When typical displays experience low temperatures, the heat transfer system is not adapted to maintain the heat of the display, or perhaps generate additional heat. This may be necessary, as low temperatures can cause a display to malfunction, not display images properly, or may permanently damage the display. Specifically for liquid crystal displays (LCDs), the crystal material may malfunction once the display experiences low temperatures. They crystal material may not respond appropriately to a potential difference and, in some cases, the crystal material may even freeze. Furthermore, although there may be some heat near the back of the display where the electrical components are, this heat has no way of contacting the area near the crystal material and thus heating the crystals.

Exemplary embodiments relate to an isolated gas heating system and a method for heating an electronic display. An exemplary embodiment includes an isolated gas heating chamber. The gas heating chamber is preferably a closed loop which includes a first gas chamber comprising a transparent anterior plate and a second gas chamber comprising a heating plenum. The first gas chamber is anterior to and coextensive with the viewable face of the electronic display surface. The transparent anterior plate may be set forward of the electronic display surface by spacers defining the depth of the first gas chamber.

A heating chamber fan, or equivalent means, may be located within the heating plenum. The fan may be used to propel gas around the isolated gas heating chamber loop. As the gas traverses the first gas chamber it contacts the electronic display surface, transferring heat to the front surface of the display. Because the gas and the relevant surfaces of the first gas chamber are transparent, the image quality remains excellent. After the gas has traversed the transparent first gas chamber, the gas may be directed into the rear heating plenum. In order to heat the gas in the plenum, heating elements may be used. In other embodiments, electronic components which operate the display may be placed within the heating plenum. These components naturally generate heat during operation, and can further heat the gas within the heating plenum. These components will also run more efficiently, if cool air is regularly circulated over them.

The foregoing and other features and advantages of the present invention will be apparent from the following more detailed description of the particular embodiments of the invention, as illustrated in the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

A better understanding of an exemplary embodiment will be obtained from a reading of the following detailed description and the accompanying drawings wherein identical reference characters refer to identical parts and in which:

FIG. 1 is a perspective view of an exemplary embodiment in conjunction with an exemplary electronic display.

FIG. 2 is an exploded perspective view of an exemplary embodiment showing components of the isolated gas heating system.

FIG. 3 is top plan view of an exemplary embodiment of the heating chamber.

FIG. 4 is a front perspective view of an embodiment of the isolated heating chamber, particularly the transparent anterior surface of first gas chamber.

FIG. 5 is a rear perspective view of an embodiment of the isolated heating chamber, particularly the heating plenum.

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