Method of Manufacturing Module Having Multiple Pattern Areas, Module Having Multiple Pattern Areas According to the Method, and Method of Manufacturing Diffraction Grating Module or Mold for Diffraction Grating Module

Patent metadata

Field	Value
Publication number	US-2020271836-A1
Application number	US-201816636469-A
Country	US
Kind code	A1
Filing date	Aug 1, 2018
Priority date	Aug 18, 2017
Publication date	Aug 27, 2020
Grant date	—

Abstract

Exemplary embodiments of the present invention provide a method of manufacturing a module having multiple pattern areas, a module having multiple pattern areas according to the method, and a method of manufacturing a diffraction grating module or a mold for a diffraction grating module.

First claim

1 . A method of manufacturing a module having multiple pattern areas to manufacture a diffraction grating module including a first diffraction grating element and a second diffraction grating element having different diffraction grating patterns, the method comprising:
(a) disposing a first substrate having a first pattern on a first base substrate; (b) forming a first cutting line on the first substrate, wherein a first layout of the first cutting line corresponds to a first diffraction grating element; (c) forming a second cutting line on the first substrate, wherein a second layout of the second cutting line corresponds to a second diffraction grating element; (d) removing any one of a first area defined by the first cutting line and a second area defined by the second cutting line from the first substrate to form a removed area on the first substrate; (e) disposing a second base substrate having a second pattern different from the first pattern in the removed area, the second base pattern having a layout corresponding to the removed area of the first substrate; and (f) removing the first substrate from the base substrate without removing the first area and the second area.

2 . The method of claim 1 , wherein an alignment relationship between the first diffraction grating element and the second diffraction grating element is set in a diffraction grating module, and
wherein the first cutting line or the second cutting line corresponds to the alignment relationship.

3 . The method of claim 1 , wherein the first layout of the first cutting line is an image corresponding to the first diffraction grating element, and
the second layout of the second cutting line is an image corresponding to the second diffraction grating element.

4 . The method of claim 1 , wherein the first layout of the first cutting line is a reverse image of the first diffraction grating element, and
the second layout of the second cutting line is a reverse image of the second diffraction grating element.

5 . The method of claim 1 , wherein the diffraction grating module includes a third diffraction grating element having a different diffraction grating pattern from the diffraction grating pattern of at least one of the first diffraction grating element and the second diffraction grating element, and
the method further includes (g) forming a third cutting line having a third layout corresponding to the third diffraction grating element on the first substrate, and a third area is defined by the third cutting line, and the first substrate is removed from the base substrate without removing the first area, the second area, and the third area.

6 . The method of claim 5 , wherein an alignment relationship between the first diffraction grating element, the second diffraction grating element, and the third diffraction grating element is set within a diffraction grating module, and
wherein the first cutting line, the second cutting line, or the third cutting line corresponds to the alignment relationship.

7 . The method of claim 5 , wherein the first layout of the first cutting line is an image corresponding to the first diffraction grating element,
the second layout of the second cutting line is an image corresponding to the second diffraction grating element, and the third layout of the third cutting line is an image corresponding to the third diffraction grating element.

8 . The method of claim 5 , wherein the first layout of the first cutting line is a reverse image of the first diffraction grating element,
the second layout of the second cutting line is a reverse image of the second diffraction grating element, and the third layout of the third cutting line is a reverse image of the third diffraction grating element.

9 . A module having multiple pattern areas manufactured by the manufacturing method of claim 1 .

10 . The module of claim 9 , wherein the module having multiple pattern areas is a mold for manufacturing a diffraction grating module including a first diffraction grating element and a second diffraction grating element having different diffraction grating patterns.

11 . A method of manufacturing a diffraction grating module or a mold for a diffraction grating module, the method comprising:
preparing the module of claim 9 ; applying a resin composition on the module; curing the resin composition to form pattern areas corresponding to the multiple pattern areas of the module; and separating the module areas and the corresponding pattern areas.

Assignees

• Lg Chemical Ltd

Inventors

• Park Jeong Ho
• Shin Bu Gon
• Her Eun Kyu
• Yoon Jung Hwan
• Choo So Young

Classifications

• G02B5/1857 Primary

  using exposure or etching means, e.g. holography, photolithography, exposure to electron or ion beams · CPC title

• G02B2027/0125

  Field-of-view increase by wavefront division · CPC title

• G02B27/0172 Primary

  characterised by optical features · CPC title

• G02B2027/0109

  comprising details concerning the making of holograms · CPC title

• G02B5/1847 Primary

  Manufacturing methods · CPC title