Waste heat actuated display back light
AssigneeGateway, Inc.
InventorMichael R. Flannery
Life of this patent
Estimating the term…
Abstract
A display apparatus is provided having a back light generated by waste heat of a system. A thermally illuminated strip is disposed on a surface of the display apparatus. The system has heat generating components, such as a CPU, which produce excess waste heat. A heat pipe conveys the heat from the heat generating components to the thermally illuminated strip. Once the heat generating component warms up, the thermally illuminated strip is illuminated by the conveyed heat and provides back lighting for the display apparatus. Although several other applications are appropriate, one particular application for the display apparatus is for a status LCD within a computer.
Claims27
A display apparatus having a backlight provided for by heat, the display apparatus comprising:
- a display device for displaying information thereon;
- a thermal illumination member disposed proximate to a surface of the display device;
- a heat producing component;
- and
- a heat conveying unit thermally coupled between the thermal illumination member and the heat producing component, whereby heat is conveyed from the heat producing component to the thermal illumination member.
A display apparatus having a backlight provide for heat, the display apparatus comprising:
- a display device for displaying information thereon, said display device having a thermally illuminescent material formed integrally therein;
- a heat producing component;
- and
- a heat conveying unit coupled between the display device and the heat producing component, whereby heat is conveyed from the heat producing component to the display device.
A display apparatus having a backlight provided for by waste heat, the display apparatus comprising:
- a support case having an opening in a first surface;
- a display device mounted within the opening of the first surface;
- a first heat distributing member disposed proximate to a surface of the display device;
- a thermal illumination member disposed between the first heat distributing member and the display device;
- a heat producing component;
- a second heat distributing member disposed proximate to the heat producing component;
- and
- a heat conveying unit thermally coupled between the first heat distributing member with the second heat distributing member, whereby heat is conveyed from the first heat distributing member to the second heat distributing member.
A display apparatus comprising:
- a portable computer having a computer body, the computer body supporting a keyboard in a top surface;
- a display rotatably coupled to a rear portion of the computer body;
- a printed circuit board encompassed by the computer body;
- said printed circuit board having a heat producing component mounted thereon, said heat producing component electrically connected to said printed circuit board;
- a heat sink for dissipating heat from the heat producing component;
- a first heat slug for distributing heat from the heat producing component, said first heat slug disposed between said heat sink and said heat producing component;
- at least one display device for displaying information, each display device mounted in the top surface of the computer body, each display device having a bottom surface;
- controller circuitry for determining display information for the display device;
- a communication unit for communicating between each display device and the controller circuitry, said communication unit providing power to each display device;
- a thermally illuminated strip proximately disposed to the bottom surface of display device;
- a second heat slug mounted proximate to the thermally illuminated strip, said second heat slug for evenly distributing heat;
- and
- a heat pipe for conveying heat from the heat sink and the first heat slug to a second heat slug, whereby the thermally illuminated strip is illuminated by the conveyed heat.
A method for backlighting a display apparatus, the method comprising the steps of:
- providing a display device proximate to a system having a heat producing unit;
- coating a substantial portion of a surface of the display device with thermoluminescent material;
- and
- conveying waste heat from the heat producing unit proximate to the thermoluminescent material, whereby the material becomes illuminated.
Dependencies are inferred from the claim text.