Optical plate and backlight module using the same
AssigneeHon Hai Precision Industry Co., Ltd.
InventorShao-Han Chang
Life of this patent
Estimating the term…
Abstract
An optical plate includes a first surface and a second surface opposite to the first surface. A plurality of elongated, arc-shaped depressions is defined in the first surface. A plurality of elongated, arc-shaped protrusions and a plurality of elongated, V-shaped protrusions protrude from the second surface. An extending direction of the elongated, arc-shaped protrusions intersects with an extending direction of the elongated, V-shaped protrusions. An extending direction of elongated, arc-shaped depressions is substantially parallel with the extending direction of the elongated, arc-shaped protrusions.
Claims19
An optical plate, comprising:
- a first surface;
- a second surface opposite to the first surface;
- a plurality of elongated, arc-shaped depressions defined in the first surface;
- and
- a plurality of elongated, arc-shaped protrusions and a plurality of elongated, V-shaped protrusions extending from the second surface;
- wherein an extending direction of the elongated, arc-shaped protrusions intersects with an extending direction of the elongated, V-shaped protrusions;
- an extending direction of elongated, arc-shaped depressions is substantially parallel to the extending direction of the elongated, arc-shaped protrusions.
A backlight module, comprising:
- a frame;
- a plurality of lamps positioned in an inner side of the frame;
- and
- an optical plate positioned on the frame above the lamps, comprising:
- a first surface;
- a second surface opposite to the first surface;
- a plurality of elongated, arc-shaped depressions defined in the first surface;
- and
- a plurality of elongated, arc-shaped protrusions and a plurality of elongated, V-shaped protrusions extending from the second surface;
- wherein an extending direction of the elongated, arc-shaped protrusions intersects with an extending direction of the elongated, V-shaped protrusions;
- an extending direction of elongated, arc-shaped depressions is substantially parallel with the extending direction of the elongated, arc-shaped protrusions.
Dependencies are inferred from the claim text.