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US 8,007,159 B2Granted
Surface illuminator and liquid crystal display having the same
AssigneeSharp Kabushiki Kaisha
InventorsNoriyuki Ohashi, Tetsuya Hamada
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Abstract
The invention provides a surface illuminator capable of achieving high display quality by employing an array of discrete light sources constituted by a plurality of LEDs and a liquid crystal display having the same. The surface illuminator includes an LED module which is a plurality of LEDs alternately and discretely provided along a light entrance surface and a color irregularity correcting resistor which is connected in parallel with a predetermined LED at an end of the LED module and which provides a bypass for a current supplied to the LED.
Claims9
A surface illuminator comprising:
- a light exit region which spreads in the form of a plane and from which light exits;
- a light guide region arranged to guide light to the light exit region;
- a light entrance surface through which light enters the light guide region;
- a reflective surface extending from an end of the light entrance surface and reflecting light in the light guide region;
- and
- an LED module including a white LED set provided at only one end of the LED module and an LED set arranged next to the white LED set;
- wherein
- the white LED set includes only one or more white LEDs;
- the LED set includes a plurality of LEDs that emit only light having a color that is not white;
- and
- the one or more white LEDs and the plurality of LEDs are discretely provided along the light entrance surface.
8 more elements
Dependencies are inferred from the claim text.