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US 12,585,132 B2Granted
Optical film for controlling optical path, and manufacturing method therefor
AssigneeSekonix Co., Ltd.
InventorsChan Hee Lee, Jung Chul Seo, Jung Hoon Lee, Jong Gil Kim
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Abstract
An optical film for controlling an optical path, includes: a base film; an optical path control pattern part, which is formed on the base film and has a first refractive index; a light absorption pattern part, which is formed on the base film and has a second refractive index that is relatively smaller than the first refractive index.
Claims16
An optical film for optical path control, the optical film comprising:
- a base film;
- an optical path control pattern unit formed on the base film, the optical path control pattern unit having a first refractive index;
- and
- a light absorption pattern unit formed on the base film, the light absorption pattern unit having a second refractive index less than the first refractive index,
- wherein the optical film controls an optical path such that light is incident on a light receiving unit of an optical sensor, and
- wherein the optical film is configured such that the first refractive index of the optical path control pattern unit is increased with an increase in distance from the light receiving unit.
3 more elements
Dependencies are inferred from the claim text.