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Method for determining cut position of optical film

An optical film, optical film technology, applied in optics, optical components, optical components, etc., can solve problems such as optical film defects

Active Publication Date: 2022-08-02
杉金光电(广州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Meanwhile, during the manufacture of the optical film, defects may be formed in the optical film due to inflow of foreign matter and air bubbles, and damage such as scratches and deformation

Method used

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  • Method for determining cut position of optical film
  • Method for determining cut position of optical film
  • Method for determining cut position of optical film

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Embodiment approach

[0053] The present disclosure will become apparent with reference to the following detailed description of the embodiments in conjunction with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below, but may be embodied in various forms. These embodiments are provided only so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. The scope of the present disclosure will be limited only by the claims. Meanwhile, the terms used in the present specification are for the purpose of explaining the embodiments and are not intended to limit the present disclosure. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly dictates otherwise. As used in this specification, the terms "comprising" and / or "comprising" indicate the presence of stated elements, steps, operations and / or components, but do not p...

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PUM

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Abstract

Disclosed is a method of determining cutting positions of a lengthwise optical film for forming a plurality of optical film sheet pieces by cutting the optical film in the width direction at regular intervals in the length direction. The method may include the following steps: (a) pre-acquiring information about defect positions of the optical film based on the length direction of the optical film; (b) based on normal cutting pitch conditions and minimum cutting pitch conditions in the length direction, and information about the optical film information on defect locations of the film, dividing the entire area of ​​the optical film into a plurality of large calculation areas for deriving the plurality of cutting positions; and (c) in the length direction of the optical film from the plurality of large calculation areas The area where none of the cutting positions are determined determines the cutting position.

Description

technical field [0001] The present disclosure relates to a method for determining cutting positions of an elongated optical film for forming a plurality of sheet pieces by cutting the optical film in the width direction at intervals in the length direction. Background technique [0002] The display unit may be manufactured by attaching an optical film including a polarizing film, a retardation film, a brightness enhancing film and / or a diffusing film to the surface of the panel. [0003] The optical film may be manufactured in the form of an elongated fabric, and may be prepared in the form of a rolled fabric by winding. [0004] The optical film in the form of a rolled fabric may be unrolled lengthwise, and may be pre-cut in the width direction at regular intervals in the length direction to correspond to the size of the panel, thereby providing a plurality of optical film sheet pieces that may be separated from each other. The plurality of optical film sheet pieces may ea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B26D7/28G02B5/00B29D11/00B26D5/00
CPCB29D11/00B26D5/00B26D7/28G02B5/00B29D11/00932B29D11/00788B29D11/00951
Inventor 许淳基郭文千张应镇金赞洙李圭滉
Owner 杉金光电(广州)有限公司