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1. (WO2017037856) DISPLAY DEVICE

Pub. No.:    WO/2017/037856    International Application No.:    PCT/JP2015/074805
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Tue Sep 01 01:59:59 CEST 2015
IPC: G02F 1/1333
G02F 1/1335
G02F 1/13357
Applicants: SAKAI DISPLAY PRODUCTS CORPORATION
堺ディスプレイプロダクト株式会社
Inventors: OHTSUBO, Tomokazu
大坪 友和
Title: DISPLAY DEVICE
Abstract:
[Problem] To provide a display device such that wrinkles in an optical sheet due to thermal expansion can be prevented while minimizing the damage that may be caused by movement of the optical sheet when the display device vibrates. [Solution] In an engagement hole 35a of a central engagement flange 34a provided at the center of one side of a rectangular optical sheet 3, the clearance between the engagement hole 35a and the projection 43a for engaging with the same is made smaller than the clearance made by the engagement holes 35b of other engagement flanges 34b excluding the central engagement flange 34a, thereby preventing wrinkles in an optical sheet 3 due to thermal expansion while minimizing the damage that may be caused by movement of the optical sheet 3 when the display device vibrates.