Filter substrate and display device
AssigneeNippon Sheet Glass Co., Ltd.
InventorsTakuji Goda, Katsuya Kamisaku, Sadao Kuzuwa
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Abstract
A glass substrate for a front filter of a display device having considerable strength and excellent display quality, and being lightweight is provided. A display device employing this display filter substrate is provided. The glass substrate has one or more of electromagnetic-wave shielding function, near infrared ray blocking function, and anti-reflection function. The glass substrate has a thickness of 1.8-3.2 mm, an average surface compressive stress of 20-70 MPa, and a warp ratio of the glass substrate of 1.0% or less. The surface compressive stress is applied by an air blast cooling process or a chemical reinforcing process. The filter substrate is disposed over a front surface of the display device.
Claims11
A filter substrate for a display device comprising a glass substrate and having at least one function of electromagnetic-wave shielding function, near infrared ray blocking function, and anti-reflection function,
- wherein the glass substrate has a thickness between 1.8 mm and 3.2 mm, an average surface compressive stress between 20 MPa and 70 MPa, and a warp ratio of 1.0% or less.
Dependencies are inferred from the claim text.