Management method of optical laminate and manufacturing method of display system

The method addresses the challenge of managing optical laminates for high-definition display systems by classifying and distributing optical laminates based on in-plane phase differences, resulting in efficient manufacturing and improved image quality.

JP2025037611APending Publication Date: 2025-03-18NITTO DENKO CORP
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Patent Information

Application Number
JP2023144633
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-06
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

Existing methods for manufacturing high-definition display systems, such as VR goggles, face challenges in efficiently managing optical laminates to achieve consistent in-plane phase differences, which are crucial for high-definition imaging.

Method used

A method for managing optical laminates by classifying first and second optical laminates with different average in-plane phase differences into specific groups, matching combinations based on these averages, and distributing laminates to ensure a balanced number in each combination, thereby achieving consistent in-plane phase differences.

Benefits of technology

This method enables the efficient manufacturing of high-definition display systems by ensuring consistent in-plane phase differences between the first and second λ/4 members, thereby improving image quality and reducing manufacturing inefficiencies.

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Abstract

To provide a manufacturing method of a display system such as high-definition VR goggles.SOLUTION: A management method of first and second optical laminates, includes: (i) classifying a plurality of first optical laminates into Na-number of groups each having a different average value of an in-plane phase difference; (ii) classifying a plurality of second optical laminates into Nb-number of groups each having a different average value of the in-plane phase difference; (iii) matching a combination A of a 1a group and a 1b group, and a combination B of a 3a group and a 3b group on the basis of the average value of the in-plane phase difference; and (iv) allocating first optical laminates included in the 2a group and second optical laminates included in the 2b group to the combination A and / or the combination B respectively such that a difference between the number of the first optical laminates and the number of the second optical laminates in the combination A and / or the combination B becomes small.SELECTED DRAWING: Figure 6
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