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Glass substrate for display and method for producing the same

A technology of glass substrate and manufacturing method, applied in the direction of instrument, optics, nonlinear optics, etc.

Active Publication Date: 2022-07-26
AGC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The present invention provides a glass substrate for a display that does not easily generate peeling electrification when peeling off from an adsorption table, and a manufacturing method thereof

Method used

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  • Glass substrate for display and method for producing the same
  • Glass substrate for display and method for producing the same
  • Glass substrate for display and method for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] While conveying a glass plate (trade name: AN100, manufactured by Asahi Glass Co., Ltd.) of length 520 mm x width 410 mm x thickness 0.50 mm obtained by the float method and polished with cerium oxide on the second side, the glass plate was placed on the first side of the glass plate. The slurry for slurry cleaning prepared by dispersing calcium carbonate in water was ejected from one side and the second side, and cleaned with a disc brush.

[0102] The concentration of calcium carbonate was set to 3.0% by mass in the slurry (100% by mass).

[0103] As calcium carbonate, calcium carbonate having an average particle diameter of 1 μm was used.

[0104] The conveyance speed of the glass plate was set to 10 m / min.

[0105] Next, the first surface of the glass plate after the cleaning with the calcium carbonate slurry was washed with a detergent and pure water, and the glass plate was dried with an air knife.

[0106] Next, the first surface of the glass plate on which the...

Embodiment 2

[0113] In the glass etching treatment, the glass substrate of Example 2 was obtained in the same manner as in Example 1, except that the concentration of hydrogen fluoride contained in the mixed gas was adjusted to 850 ppm.

[0114] On the first side of the obtained glass substrate such as image 3 A number of holes are shown formed.

Embodiment 3

[0116] In the glass etching process, the glass substrate of Example 3 was obtained in the same manner as in Example 1, except that the concentration of hydrogen fluoride contained in the mixed gas was adjusted to 700 ppm.

[0117] On the first side of the obtained glass substrate such as Figure 4 A number of holes are shown formed.

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Abstract

It is an object of the present invention to provide a glass substrate for a display in which peeling electrification is unlikely to occur when peeled off from a suction stage, and a method for producing the same. The glass substrate for a display of the present invention has a first surface and a second surface on the opposite side of the first surface, wherein the first surface has holes having a plurality of openings, and the average opening area of ​​the holes is 1.70×10 4 nm 2 below, and the total opening area of ​​the above-mentioned holes is 6.00×10 6 nm 2 / 25μm 2 above.

Description

technical field [0001] The present invention relates to a glass substrate for a display and a method for producing the same. Background technique [0002] In flat panel displays such as plasma display panels (PDPs), liquid crystal display devices (LCDs), electroluminescence displays (ELDs), and field emission displays (FEDs), members in which transparent electrodes, semiconductor elements, etc. are formed on a glass substrate are used as a substrate. For example, in LCD, the member which formed the transparent electrode, TFT (Thin Film Transistor, thin film transistor) etc. on a glass substrate is used as a board|substrate. [0003] The formation of a transparent electrode, a semiconductor element, etc. on a glass substrate is performed in the state which fixed the glass substrate on the adsorption|suction stage by adsorption|suction. [0004] However, since the surface of the glass substrate is smooth, the glass substrate is strongly attached to the suction table, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C15/00C03C3/085C03C3/087C03C3/091G02F1/1333
CPCC03C3/085C03C3/087C03C3/091C03C15/00G02F1/1333
Inventor 佐藤启史若林纱枝中谷嘉孝小林大介似内佑辅
Owner AGC INC
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