The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 2011
Filed:
Jun. 14, 2007
Hideki Ichioka, Nabari, JP;
Tomohiko Yamamoto, Nara, JP;
Hideki Ichioka, Nabari, JP;
Tomohiko Yamamoto, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A display apparatus includes a liquid crystal display panel, a front side viscoelastic layer, a front side hard layer, a back side viscoelastic layer, a back side hard layer, a backlight unit, a driving circuit board, and a metal plate. The front side viscoelastic layer that is viscoelastic covers a display surface of the liquid crystal display panel. The front side hard layer has a higher modulus of elasticity than the front side viscoelastic layer. The back side viscoelastic layer that is viscoelastic covers a back surface of the liquid crystal display panel. The back side hard layer has a higher modulus of elasticity than the back side viscoelastic layer. The back side viscoelastic layer has a thickness Tb of not less than about 20 μm, and the front side viscoelastic layer has a thickness Ta and satisfies: Ta/Tb>1 (Tb≠0). Thus, the display apparatus is resistant to breakage caused by a load placed on a display surface of the liquid crystal display panel and an impact when dropped, thereby attaining mechanical durability.