LIGHT GUIDE UNIT AND DISPLAY DEVICE HAVING THE SAME
First Claim
1. A light guide unit comprising:
- a light guide plate comprising a light-entering surface, an upper surface connected to the light-entering surface and a lower surface facing the upper surface; and
a plurality of a light-exiting protrusion protruding from the upper surface of the light guide plate to have a cylindrical shape in which a cross-section size of a light-exiting protrusion increases in a direction away from the upper surface of the light guide plate,wherein the light-exiting protrusions are disposed aligned with a light control area which is turned on or off by a microelectromechanical system shutter, and light guided by the light guide unit to the light control area exits through the light-exiting protrusions.
2 Assignments
0 Petitions
Accused Products
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.
-
Citations
20 Claims
-
1. A light guide unit comprising:
-
a light guide plate comprising a light-entering surface, an upper surface connected to the light-entering surface and a lower surface facing the upper surface; and a plurality of a light-exiting protrusion protruding from the upper surface of the light guide plate to have a cylindrical shape in which a cross-section size of a light-exiting protrusion increases in a direction away from the upper surface of the light guide plate, wherein the light-exiting protrusions are disposed aligned with a light control area which is turned on or off by a microelectromechanical system shutter, and light guided by the light guide unit to the light control area exits through the light-exiting protrusions. - View Dependent Claims (2, 3)
-
-
4. A display device comprising:
-
a display panel comprising a first substrate and a second substrate, the second substrate comprising; an upper substrate facing the first substrate; a light control area defined at a lower surface of the upper substrate; a switching element disposed between the upper substrate and the first substrate; and a microelectromechanical system shutter moveable in a direction parallel with the lower surface of the upper substrate in response to the switching element, wherein the movable microelectromechanical system shutter turns on the light control area or turns off the light control area; a light guide plate facing a lower surface of the first substrate; and a plurality of a light-exiting protrusion being disposed between the lower surface of the first substrate and an upper surface of the light guide plate, and disposed aligned with the light control area, the light guided by the light guide plate exits the light-exiting protrusions and is transmitted toward the light control area. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification