Optical sheet, method of manufacturing the same and display apparatus having the same

Optical sheet, method of manufacturing the same and display apparatus having the same

  • CN 101,303,429 B
  • Filed: 05/08/2008
  • Issued: 12/31/2014
  • Est. Priority Date: 05/08/2007
  • Status: Active Grant
First Claim
Patent Images

1. manufacture a method for optical sheet, the step comprised is as follows:

  • Form the first main film with multiple first prism pattern, each first prism pattern has the shape of triangular prism;

    By using the first patterned rolls to form multiple first embossed pattern at the place of peak portion of the first prism pattern, wherein, the first patterned rolls comprises the first lattice of the surface being formed in the first patterned rolls;

    The second main film with multiple second prism pattern and the shape with the symmetrical shape of the first main film is formed by using the first main film with the first embossed pattern;

    By using the second patterned rolls to form multiple second embossed pattern at the place of peak portion of the second prism pattern corresponding with the valley of the first prism pattern, wherein, the second patterned rolls comprises the second lattice of the surface being formed in the second patterned rolls;

    Form optical sheet, described optical sheet comprises;

    Multiple triangular prism pattern and multiple 3rd embossed pattern, described multiple 3rd embossed pattern is corresponding with the first embossed pattern and be formed in the Feng Buchu of triangular prism pattern,Multiple 4th embossed pattern, corresponding with the second embossed pattern, being formed in the valley place of triangular prism pattern, wherein, forming triangular prism pattern by using the second main film with the second embossed pattern.

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