Isolated Gas Cooling System for Cooling Electrical Components of an Electronic Display
An exemplary embodiment provides an electronic display having a liquid crystal panel and a rear wall placed behind the liquid crystal panel, said rear wall having a front surface which faces the liquid crystal panel and a rear surface which faces away from the liquid crystal panel, where a space between the liquid crystal panel and the front surface of the rear wall defines a gap. One or more electronic components for driving the electronic display are preferably attached to the rear surface of the rear wall and a fan is preferably positioned to draw ambient air through said gap. A front transparent plate may be positioned in front of the liquid crystal panel to define a gap for accepting circulating gas which preferably does not mix with the ambient air.
1 . An electronic display comprising:
a liquid crystal panel;
a rear wall placed behind the liquid crystal panel, said rear wall having a front surface which faces the liquid crystal panel and a rear surface which faces away from the liquid crystal panel, where a space between the liquid crystal panel and the front surface of the rear wall defines a gap;
one or more electronic components for driving the electronic display attached to the rear surface of the rear wall; and
a fan positioned to draw ambient air through said gap.
2 . The electronic display of claim 1 wherein:
one of the electronic components for driving the electronic display is a power module.
3 . The electronic display of claim 1 further comprising:
a backlight positioned between the rear wall and the liquid crystal panel.
4 . The electronic display of claim 1 further comprising:
a front transparent plate positioned in front of the liquid crystal panel to define a gap between the front transparent plate and the liquid crystal panel.
5 . The electronic display of claim 4 further comprising:
a fan positioned to cause a circulating loop of gas to travel through the gap between the front transparent plate and the liquid crystal display.
6 . The electronic display of claim 5 wherein:
the ambient air and circulating loop of gas are not permitted to substantially mix.
7 . The electronic display of claim 4 further comprising:
a fan positioned to cause a circulating loop of gas to travel through the gap between the front transparent plate and the liquid crystal display as well as across the electronic components.
8 . The electronic display of claim 1 wherein:
the rear wall prohibits the ambient air from contacting the electronic components.
9 . The electronic display of claim 1 further comprising
a fan positioned to cause a circulating loop of gas to travel in front of the liquid crystal display as well as across the electronic components.
10 . An electronic display comprising:
a liquid crystal panel with an associated backlight;
a rear wall placed behind the liquid crystal panel, said rear wall having a front surface which faces the backlight and a rear surface which opposes the front surface;
one or more electronic components in electrical communication with the backlight and attached to the rear surface of the rear wall; and
a fan positioned to draw ambient air between the front surface of the rear wall and the backlight.
11 . The electronic display of claim 10 further comprising:
a fan positioned to cause a circulating gas to travel in front of the liquid crystal display as well as contacting the electronic components.
12 . The electronic display of claim 11 further comprising:
a front cover glass positioned in front of the liquid crystal panel to define a gap between the front cover glass and the liquid crystal panel;
wherein the circulating gas also travels through the gap between the front cover glass and the liquid crystal panel.
13 . The electronic display of claim 11 wherein:
the circulating gas and the ambient air are not permitted to mix.
14 . The electronic display of claim 10 wherein:
the rear wall prohibits the ambient air from contacting the electronic components.
15 . The electronic display of claim 10 wherein:
the ambient air contacts both the backlight and the front surface of the rear wall.
16 . An electronic display comprising:
a liquid crystal panel with an associated backlight;
a rear chamber placed behind the backlight, said rear chamber having a front surface which faces the backlight;
one or more electronic components placed within the rear chamber; and
a fan positioned to draw ambient air between the front surface of the rear chamber and the backlight.
17 . The electronic display of claim 16 wherein:
one of the electronic components is a power module.
18 . The electronic display of claim 16 further comprising:
a glass plate positioned in front of the liquid crystal panel with a gap defined between the glass plate and the liquid crystal panel.
19 . The electronic display of claim 18 further comprising:
one or more fans positioned to cause a flow of circulating gas through the gap and through the rear chamber, contacting the electronic components.
20 . The electronic display of claim 19 wherein:
the ambient air and circulating gas are not permitted to mix.