Measuring method for pattern-dots of light guide plate
OwnerJyhchain Lininventor
Life of this patent
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Abstract
A method for measuring area density of pattern-dots (14) for a light guide plate (10) includes the steps of: defining a coordinate system according to the dots; selecting a unit area (142) in the coordinate system; accounting area of the dots in the unit area; and calculating area density of the dots. Quantity of the dots in each unit area is invariableness, and area of each dot in the unit area is uniform. It is convenient to measuring area density of pattern-dots for a light guide plate by using this method.
Claims12
A measuring method for dots of a pattern distributed on a light guide plate uniform, comprising the steps of:
- defining a coordinate system according to the dots selecting a unit area in the coordinate system;
- accounting area of the dots in the unit area;
- calculating area density of the dots;
- wherein, quantity of the dots in each unit area is invariable, and area of each dot in the unit area is equal.
A measuring arrangement for dots of a pattern distributed on the light guide plate, comprising:
- defining a coordinate system covering the dots;
- determining a plurality of unit areas in the coordinate system;
- accounting area of the dots in each of the unit areas;
- calculating area density of the dots;
- wherein quantity of the dots in each of the unit area is same, and the dot, which occupies more than one unit areas, occupies the same sized area in the corresponding more than one unit areas, respectively.
Dependencies are inferred from the claim text.