Laminated glass, liquid crystal device, and method for fixing laminated glass

The laminated glass structure with specific substrate and intermediate layer configurations addresses liquid crystal unevenness, ensuring consistent light control and appearance by evenly distributing the load and protecting the liquid crystal cell.

JP7700646B2Active Publication Date: 2025-07-01DAI NIPPON PRINTING CO LTD
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Patent Information

Application Number
JP2021188368
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-11-19
Publication Date
2025-07-01
Estimated Expiration
2041-11-19

AI Technical Summary

Technical Problem

Laminated glass sandwiching a liquid crystal cell experiences liquid crystal unevenness when attached to a frame member, leading to poor appearance and deteriorated light control performance.

Method used

A laminated glass structure with a first transparent substrate, a second transparent substrate, and intermediate layers, where the frame member holds only the first transparent substrate, exposing the side surface of the laminated glass, and the liquid crystal cell is covered by intermediate layers at the exposed portion.

Benefits of technology

Suppresses liquid crystal unevenness, maintaining optimal light control performance and appearance by distributing the load evenly and protecting the liquid crystal cell.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a glass laminate which can suppress the occurrence of liquid crystal unevenness when being fixed to a frame member.SOLUTION: A glass laminate 10 comprises: a first transparent substrate 41; a second transparent substrate 42 which is arranged so as to be opposed to the first transparent substrate 41; a liquid crystal cell 20 which is provided between the first transparent substrate 41 and the second transparent substrate 42; a first intermediate layer 31 which is provided between the first transparent substrate 41 and the liquid crystal cell 20; a second intermediate layer 32 which is provided between the second transparent substrate 42 and the liquid crystal cell 20; and a third intermediate layer 33 which is provided between the first intermediate layer and the second intermediate layer. The first transparent substrate 41 includes a first region 41a overlapping the second transparent substrate 42 and a second region 41b extending to the outer side from the outer edge of the first region 41a in the plan view.SELECTED DRAWING: Figure 2
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Citation Information

Patent Citations

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  • Light control film and laminated glass

    JP2017187810A

  • Vehicle Window Pane Having a Liquid Crystal Arrangement

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  • Assembly kit for layered window, layered window, structure, light control device, building, light control kit, window, vehicle, and method for producing layered window

    WO2018101475A1

  • Laminated glass and production method for laminated glass

    WO2019026849A1