LIGHT GUIDE PLATES AND BACKLIGHT MODULE
First Claim
1. A light guide plate, comprising:
- a body having a bottom surface having a center and a light output surface;
a reflector located on the light output surface and opposite to the center, the reflector is a cavity; and
a plurality of scattering dots located on the bottom surface, the scattering dots are arranged in the form of a plurality of concentric circles around the center, and the number of the scattering dots is defined based on a radius of the circle, the radius of the circle is greater than or substantially equal to 4 millimeter.
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Accused Products
Abstract
A light guide plate includes a body having a bottom surface and a light output surface opposite to the bottom surface. A reflector is located on the light output surface opposite to the center of the bottom surface. The reflector is a cavity concaved from the light output surface to the inside of the body. A plurality of scattering dots are located on the bottom surface. The scattering dots are arranged in the form of a plurality of concentric circles around the center of the bottom surface. The number of the scattering dots is defined based on a radius of the circle they reside on, and the radius of the circle is greater than or substantially equal to 4 millimeter.
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Citations
20 Claims
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1. A light guide plate, comprising:
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a body having a bottom surface having a center and a light output surface; a reflector located on the light output surface and opposite to the center, the reflector is a cavity; and a plurality of scattering dots located on the bottom surface, the scattering dots are arranged in the form of a plurality of concentric circles around the center, and the number of the scattering dots is defined based on a radius of the circle, the radius of the circle is greater than or substantially equal to 4 millimeter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A light guide plate, comprising:
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a body having a bottom surface having a center, and a light output surface opposite to the bottom surface; and a plurality of scattering dots located on the bottom surface, the scattering dots are arranged in the form of a plurality of concentric circles around the center, and the number of the scattering dots for each concentric circle ‘
e’
is defined by the following formula;
e=|4[a1×
(r−
a2)×
(r−
a3)]|wherein, ‘
e’
is the number of the scattering dots;
‘
r’
is the radius of the circle and r≧
4 millimeter;
‘
a1’
, ‘
a2’ and
‘
a3’
are constant, 0.05≦
a1≦
01, a2≧
6, and a3≦
12.
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15. A backlight module comprising:
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a light source; a body having a bottom surface having a center and a light output surface opposite to the bottom surface, the light source is located adjacent to the center of bottom surface; a reflector located on the light output surface opposite to the center, and the reflector; and a plurality of scattering dots located on the bottom surface, the scattering dots are arranged in the form of a plurality of concentric circles around the center, and the number of the scattering dots is defined based on a radius of the circle, and the radius of the circle is greater than or substantially equal to 4 millimeter. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification