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US 7,679,697 B2Granted
Backlight module with reflector having reflection pattern thereat and liquid crystal display having same
AssigneeInnolux Display Corp.
InventorsWei Wang, An Shih
Life of this patent
Estimating the term…
Abstract
An exemplary backlight module (11) includes a light guide plate (12), a reflector (18), and a light emitting diode unit (142). The light guide plate has a light incident surface (122). The reflector is positioned adjacent to the light incident surface, and has a reflection pattern (184) thereat. The light emitting diode unit is interposed between the light incident surface and the reflector.
Claims20
A backlight module comprising:
- a light guide plate having a light incident surface;
- a reflector positioned adjacent to the light incident surface, the reflector comprising a reflection pattern thereat;
- and
- a light emitting diode unit interposed between the light incident surface and the reflector;
- wherein the light emitting diode unit comprises a plurality of light emitting diodes, each light emitting diode is configured to emit light beams only from a front face thereof over an angle of divergence as measure from the front face and the light emitting diode unit is arranged such that the angles of divergence of the light emitting diodes expand toward the reflector to make light beams emitted by the light emitting diode unit reach the reflector first and then be reflected by the reflector and finally reach the light incident surface.
2 more elements
A liquid crystal. display comprising:
- a liquid crystal panel;
- and
- a backlight module adjacent to the liquid crystal panel the backlight module comprising:
- a light guide plate having a light incident surface;
- a reflector positioned adjacent to the light incident surface, the reflector comprising a reflection pattern thereat;
- and
- a light emitting diode unit interposed between the light incident surface and the reflector;
- wherein the light emitting diode unit comprises a plurality of light emitting diodes, each light emitting diode is configured to emit light beams only from a front face thereof over an angle of divergence as measured from the front face, and the light emitting diode unit is arranged such that the angles of divergence of the emitting diodes expand toward the reflector to make light beams emitted by the light emitting diode unit reach the reflector first and then be reflected by the reflector and finally reach the light incident surface.
5 more elements
A backlight module comprising:
- a light guide plate having a light incident surface;
- a reflector positioned adjacent to the light incident surface;
- and
- a light emitting diode unit interposed between the light incident surface and the reflector;
- wherein the tight emitting diode unit comprises a plurality of light emitting diodes, each light emitting diode is configured to emit light beams only from a front face thereof, and the light emitting diode unit is arranged such that the front faces of the light emitting diodes face the reflector to make light beams emitted by the light emitting diode unit reach the reflector first and then be reflected by the reflector and finally reach the light incident surface.
2 more elements
Dependencies are inferred from the claim text.