Direct back light unit with heat exchange
First Claim
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1. A back light unit comprising:
- a light source generator positioned in a backside of a display panel for providing light beams to the display panel;
a diffuser positioned between the light source generator and the display panel for uniformly scattering light beams from the light source generator to the display panel; and
a housing enclosing the light source generator and connecting to the diffuser for reflecting the light beams to the diffuser, the housing further comprising a heat pipe for being a heat transfer interface between the back light unit and an external environrment;
wherein the heat pipe overlaps the diffuser in a direction as the light beams enter the display panel from the light source generator.
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Abstract
A backlight unit with high thermal dissipation. The back light unit includes a light source generator positioned in a backside of a display panel for providing light beams to the display panel, a diffuser positioned between the light source generator and the display panel for uniformly scattering light beams from the light source generator to the display panel, and a housing enclosing the light source generator and connecting to the diffuser for reflecting the light beams to the diffuser. The housing further includes a heat pipe for being a heat transfer interface between the back light unit and an external environment.
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Citations
20 Claims
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1. A back light unit comprising:
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a light source generator positioned in a backside of a display panel for providing light beams to the display panel; a diffuser positioned between the light source generator and the display panel for uniformly scattering light beams from the light source generator to the display panel; and a housing enclosing the light source generator and connecting to the diffuser for reflecting the light beams to the diffuser, the housing further comprising a heat pipe for being a heat transfer interface between the back light unit and an external environrment; wherein the heat pipe overlaps the diffuser in a direction as the light beams enter the display panel from the light source generator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A back light unit comprising:
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a light source generator positioned in a backside of a display panel; a diffuser positioned between the light source generator and the display panel; and a housing enclosing the light source generator and connecting to the diffuser, the housing further comprising a heat pipe having a substantially arc surface; wherein the heat pipe overlaps the diffuser in a direction as light beams generated from the light source generator enter the display panel. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A back light unit comprising:
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a light source generator positioned in a backside of a display panel; a diffuser positioned between the light source generator and the display panel; and a housing enclosing the light source generator and connecting to the diffuser, the housing further comprising a heat pipe having a rough surface; wherein the heat pipe overlaps the diffuser in a direction as light beams generated from the light source generator enter the display panel. - View Dependent Claims (20)
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Specification