LCD apparatus with heat dissipation arrangements
First Claim
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1. An LCD apparatus, comprising:
- an LCD screen;
backlight arrangements for providing back illumination to the LCD screen;
video processing circuitry; and
air moving devices, wherein the backlight arrangement includes a matrix of LEDs mounted on one side of a double sided metal coated board, and a heatsink mounted on an other side of the double sided metal coated board, and the air moving devices are arranged to move air to condition an image-displaying surface of the LCD screen, and wherein the air moving devices are operable to change a first direction of movement of air moving from the LCD screen to the heatsink to a second direction of movement of air from the heatsink to the LCD screen.
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Abstract
An LCD apparatus comprising an LCD screen, backlight arrangements for providing back illumination to the LCD screen, video processing circuitry and air moving devices, characterized in that the air moving devices are arranged to move air to condition the image displaying surface of the LCD screen. An LCD image displaying apparatus according to the present invention could operate at a brightness level of above 1000 nits, and even 3000 nits, which provides an astounding visual effect in the outdoor environment.
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Citations
18 Claims
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1. An LCD apparatus, comprising:
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an LCD screen; backlight arrangements for providing back illumination to the LCD screen; video processing circuitry; and air moving devices, wherein the backlight arrangement includes a matrix of LEDs mounted on one side of a double sided metal coated board, and a heatsink mounted on an other side of the double sided metal coated board, and the air moving devices are arranged to move air to condition an image-displaying surface of the LCD screen, and wherein the air moving devices are operable to change a first direction of movement of air moving from the LCD screen to the heatsink to a second direction of movement of air from the heatsink to the LCD screen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A backlight module for an LCD apparatus comprising:
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a matrix of LEDs mounted on one side of a double sided metal coated board; heat sinks mounted on another side of the double sided metal coated board; and metalised through holes connecting the two metal coated sides of the coated board provided to transfer heat from the LEDs to the heat sink for dissipating heat generated by the backlight arrangements. - View Dependent Claims (16, 17, 18)
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Specification