1. A backlight module comprising:
a first optical film having high light reflection characteristics;
a second optical film spaced apart from said first optical film, and having polarization light selection transmission characteristics and light reflection characteristics;
a plurality of lampshades having high light reflection characteristics, disposed between said first optical film and said second optical film, extending in an axial direction, and arranged so that any two spaced-apart adjacent ones of said lampshades cooperate with said first and second optical films to define a light mixing chamber thereamong, thereby forming a plurality of said light mixing chambers between said first and second optical films; and
a plurality of line light sources each disposed in a corresponding one of said light mixing chambers, extending in the axial direction and mounted to a corresponding one of said lampshades for emitting light;
wherein light emitted by each of said line light sources is mixed in the corresponding one of said light mixing chambers through reflection by two corresponding spaced-apart ones of said lampshades defining the corresponding one of said light mixing chambers such that light transmitted out from the corresponding one of said light mixing chambers through said second optical film forms a surface light field.
2. The backlight module as claimed in claim 1, wherein each of said lampshades includes an elongate base wall extending in the axial direction, mounted with a corresponding one of said line light sources thereon and having opposite sides, and two extending walls extending respectively from said opposite sides of said base wall and toward a corresponding spaced-apart adjacent one of said lampshades.
3. The backlight module as claimed in claim 2, wherein said extending walls of each of said lampshades abut respectively against said first and second optical films.
4. The backlight module as claimed in claim 2, wherein, for each of said lampshades, an angle formed between said base wall and any one of said extending walls is not less than 90\xb0 but less than 180\xb0.
5. The backlight module as claimed in claim 1, wherein each of said lampshades has a light reflection rate ranging from 5% to 95%.
6. The backlight module as claimed in claim 1, wherein each of said lampshades is made from a material selected from the group consisting of polymethylmethacrylate (PMMA), polycarbonate (PC), polystyrene (PS), and polyethylene terephthalate (PET).
7. The backlight module as claimed in claim 1, wherein said first optical film has a light reflection rate greater than 80%.
8. The backlight module as claimed in claim 1, wherein said second optical film has a light transmission rate ranging from 15% to 95%, and a light reflection rate ranging from 15% to 95%.
9. The backlight module as claimed in claim 1, wherein each of said line light sources includes one of a cold cathode fluorescent (CCFL) and a light-emitting diode (LED).
10. The backlight module as claimed in claim 1, further comprising a frame body surrounding said first and second optical films.
11. The backlight module as claimed in claim 10, wherein said frame body has an inner surrounding surface with a light reflection rate greater than 80%.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method of modeling for use with an integrated circuit (IC) design, the method comprising:
partitioning an edge of a shape in the IC design into a plurality of intervals; and
assigning at least one dimension to each interval;
wherein the partitioning includes:
generating a core Voronoi diagram for the shape, the core Voronoi diagram being generated based on a L\u221e metric, the L\u221e metric defining a distance between two points in the shape as the maximum of a horizontal distance and a vertical distance between the two points; and
partitioning the edge based on a core element for each vertex of the core Voronoi diagram, the core element being one of a largest possible core element and a smallest possible core element; and
wherein in the case that the core element is the largest possible core element, the intervals are as large as possible, and wherein in the case that the core element is the smallest possible core element, the intervals are as small as possible.
2. The method of claim 1, wherein the assigning is based on a Euclidean metric.
3. The method of claim 1, wherein the at least one dimension includes a width for each interval and a spacing to a neighboring shape for each interval.
4. The method of claim 1, wherein the dimension is a function of another dimension.
5. The method of claim 1, further comprising using the at least one dimension to evaluate a check rule.
6. The method of claim 5, wherein the check rule involves at least one of: a single edge, a pair of neighboring edges, and edges within more than one layer of the IC design.
7. The method of claim 1, wherein each concave vertex of the shape is an interval.