System and method for thermally controlling an electronic display
An electronic display and display technology, applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of electronic display component failure, lower than room temperature, temperature drop, etc.
Inactive Publication Date: 2011-02-09
MFG RESOURCES INT INC
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Problems solved by technology
[0004] Also, in some applications the temperature may drop well below room temperature
Some components of electronic displays may malfunction or be permanently damaged by exposure to such low temperatures
Method used
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[0033] It should be understood that the spirit and scope of the disclosed embodiments include thermally controlling displays including, but not limited to, LCDs. For purposes of simplicity of illustration, the embodiments are described in conjunction with the components of an LCD display. By way of example and not intended to be limiting, embodiments may be used with a display selected from the group consisting of LCD, Light Emitting Diode (LED), Organic Light Emitting Diode (OLED), Field Emission Display (FED), Cathode Ray Tube (CRT) , plasma, and projection displays. Furthermore, embodiments may be used in conjunction with other types of displays including those not yet discovered. In particular, it is envisioned that embodiments may be well suited for use with full-color, flat-panel OLED displays. Furthermore, it is particularly envisioned that embodiments may be used with relatively large, high resolution LCD displays. While the embodiments described here are well suite...
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Embodiments relate generally to various thermal control features for electronic displays. One feature comprises a closed loop isolated gas chamber, where a first chamber is in contact with the display surface and transfers heat between the isolated gas and the display surface. A second chamber is in gaseous communication with the first chamber and is adapted to heat or cool the isolated gas and reintroduce the isolated gas into the first chamber. Another feature uses constricted convection to facilitate the cooling of the backlight assembly for the electronic display. Another feature uses an air curtain to further heat or cool the exterior viewing surface of the display. Another feature uses a linear polarizer with an insulating gap to reduce the solar loading of the display stack and provide insulation from the ambient air temperature. Another feature uses a fluid system to contact fluid coolant with the display surface in order to cool the display. Each of the features may be used alone, or in combination to provide the proper operating temperature for the display depending on its desired operating environment.
Description
technical field [0001] Exemplary embodiments relate generally to heating / cooling systems for electronic displays. Background technique [0002] Electronic displays are typically used indoors, in temperature-controlled environments. Although the temperature around the display may be relatively stable (close to room temperature), the components of the display can generate a lot of heat. Such heat could damage the display or shorten its life if not properly removed. Traditionally, conduction and convective heat transfer systems have been used to remove heat from the electronic components in the display through as many sidewalls of the display as possible. While the aforementioned heat transfer systems have been somewhat successful in the past, current electronic displays require greater cooling (and, in some cases, heating) capabilities. [0003] Modern electronic displays are now being used in outdoor environments and other situations where ambient temperatures can be both ...
Claims
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IPC IPC(8): G02F1/13357G02F1/1333
Inventor W·R·邓恩
Owner MFG RESOURCES INT INC