Light guide unit and display device having the same

Details Light guide unit and display device having the same Light guide unit and display device having the same

2011-01-04

2011-01-04

Thompson, Timothy J (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

Reexamination Certificate

active

07864404

ABSTRACT:
A light guide unit includes a light guide plate and a plurality of light-exiting protrusions. The light guide plate includes a light-entering surface, an upper surface connected to the light-entering surface and a lower surface facing the upper surface. The light-exiting protrusions protrude from the upper surface of the light guide plate to have a cylindrical shape in which a cross-section size thereof increases in a direction away from the upper surface of the light guide plate, the light-exiting protrusions being disposed in a light control area which is turned on or off by a microelectromechanical system shutter. Light guided by the light guide unit to the light control area exits through the light-exiting protrusions.

REFERENCES:
patent: 7581867 (2009-09-01), Lee et al.
patent: 7616368 (2009-11-01), Hagood, IV
patent: 2005/0270798 (2005-12-01), Lee et al.

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