Micro-lens array sheet and backlight unit comprising the same
AssigneeLG Chem, Ltd.
InventorsYune-Hyoun Kim, Sang-Choll Han
Life of this patent
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Abstract
The present invention relates to a microlens array sheet with enhanced optical performance, and a backlight unit having same, and more specifically, to a microlens array sheet and a backlight unit having same, the microlens array sheet comprising: a base portion; and a plurality of microlenses formed on one surface of the base portion, wherein the plurality of microlenses have an irregular array, and the standard deviation of the distance between the mid points of two microlenses adjacent to each other is, 2-20% of the average pitch(p) between microlenses adjacent from the mid point of a selected microlens after selecting one of the microlenses.
Claims14
A micro-lens array sheet comprising:
- a base;
- and
- a plurality of micro lenses disposed on one side of the base and being irregularly arranged,
- wherein an average (P) of pitches is an average of distances measured from a center of any given micro lens of the plurality of micro lenses to centers of micro lenses adjacent thereto,
- wherein a standard deviation in distances between the center of any given micro lens and the centers of micro lenses adjacent thereto is 2% to 20% of the average (P) of pitches.
Dependencies are inferred from the claim text.