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Glass substrate for display

A technology for glass substrates and displays, applied in the directions of instruments, gas discharge tubes/containers, cathode ray/electron beam tube shells/containers, etc. difficulties, etc.

Inactive Publication Date: 2007-08-29
NIPPON SHEET GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, on a glass substrate whose thickness difference becomes large sharply and severe curvature or deflection occurs, there are following disadvantages: the distance between the discharge port and the glass substrate is kept substantially constant, and the transfer surface of the transfer roller is aligned along the glass substrate. There are difficulties in correcting the thickness difference or curvature and deflection of the glass substrate, and it is impossible to accurately coat coating materials such as dielectrics with a certain thickness.

Method used

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  • Glass substrate for display
  • Glass substrate for display
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Embodiment Construction

[0033] Hereinafter, embodiments of the present invention will be described based on the drawings.

[0034] Taking the first side (short side) size of 300-3000mm, the second side (long side) size of 300-3000mm, and the average thickness of the display glass substrate as 1.5-3.0mm as an example, using floatation (float) method, the glass substrate for PDPs (sample 1-16) whose shape is 1000mm*1000mm rectangular shape and average plate thickness is 2.8mm was manufactured using soda-lime glass. Then, after measuring the following measurement items 1-5 on each glass substrate (sample 1-16), apply a dielectric coating solution with an average film thickness of 30 μm, and measure the thickness of the dielectric film formed after the coating solution is cured. Poor thickness.

[0035] The above-mentioned dielectric coating liquid contains, for example, resin, solvent, glass powder, and plasticizer. Specifically, it contains resins such as polybutyl methacrylate, polyvinyl butyral, po...

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Abstract

A glass substrate for display having a first side (short side) dimension of 300 to 3,000 mm, a second side (long side) dimension of 300 to 3,000 mm, and an averaged plate thickness of 1.5 to 3.0 mm, wherein a difference (D) between the maximum plate thickness Tmax and the minimum plate thickness Tmin is 20 mum or less.

Description

technical field [0001] The present invention relates to a glass substrate for a display, the size of the first side (short side) of the glass substrate is 300-3000 mm, the size of the second side (long side) is 300-3000 mm, and the average plate thickness is 1.5-3.0 mm. Background technique [0002] The above-mentioned glass substrate for displays (hereinafter referred to simply as a glass substrate) is used, for example, as a plasma display panel (hereinafter referred to as a PDP), a field emission display (FED), a TFT liquid crystal display (TFT-LCD), an STN liquid crystal display (STN- LCD), plasma-driven liquid crystal display (PALC), electroluminescent display (EL) and other flat-panel displays (generic term for flat displays) glass substrates. [0003] In the above-mentioned flat panel display, two glass substrates are generally used, and a necessary coating material is applied to the surface of these glass substrates according to the type of the display, and the two ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J9/20H05B33/04G02F1/1333C03B18/04C03B18/18C03C17/00G09F9/30H01J17/16H01J29/86
CPCC03C17/002G02F1/33G09F9/30H01J11/34H05B33/02
Inventor 诸桥利行合田拓司
Owner NIPPON SHEET GLASS CO LTD