Composition of touch control cover glass

A technology of protective glass and touch control, which is applied in the field of composition of touch protective glass, and can solve problems such as high energy consumption, reduced production costs, and glass that does not meet environmental protection standards.

Inactive Publication Date: 2014-10-01
FORTUNE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the glass disclosed in Taiwan Patent No. 200637800, its components must be melted at a high temperature above 1600°C, so it consumes a lot of energy, which is not conducive to reducing production costs
[0006] To sum up, the disclosure of the present invention is how to design an innovative composition of touch protection glass, which can replace As by adding and changing the composition ratio. 2 o 3 or Sb 2 o 3 ingredients that are harmful to the environment, and then produce devitrification-resistant touch protection glass to solve the problem that existing glass does not meet environmental protection standards

Method used

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  • Composition of touch control cover glass

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Embodiment Construction

[0009] The present invention mainly provides a composition of a touch protection glass. The touch protection glass is composed of the following materials (components) according to a certain weight percentage:

[0010] (1) Weight percentage 64%≤SiO 2 ≤69%;

[0011] (2) Weight percent 7%≤Al 2 o 3 ≤11.5%;

[0012] (3) weight percentage 1.5%≤B 2 o 3 ≤2.5%;

[0013] (4) weight percentage 4.5%≤MgO≤7.5%;

[0014] (5) Weight percentage 0%

[0015] (6) Weight percentage 0%

[0016] (7) Weight percent 0%2 ≤0.2%;

[0017] (8) weight percentage 0%2 ≤1%;

[0018] (9) weight percentage 14.5%≤Na 2 O≤16.5%;

[0019] (10) weight percentage 1%≤K 2 O≤4%;

[0020] (11) weight percentage 0%2 ≤0.4%; and

[0021] (12) Among them, the total weight percentage of CaO and MgO is the best at 4.5% to 10%, and Na 2 O and K 2 The total weight percentage of O is optimal at 15.5% to 20.5%.

[0022] In the present invention, because the weight percentage of each component wi...

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Abstract

The invention discloses the composition of a touch control cover glass. The touch control cover glass comprises the following components in percentages by weight: 64%<=SiO2<=69%, 7%<=Al2O3<=11.5%, 1.5%<=B2O3<=2.5%, 4.5%<=MgO<=7.5%, 0%<CaO<=2.5%, 0%<ZnO<=2%, 0%<ZrO2<=0.2%, 0%<TiO2<=1%, 14.5%<=Na2O<=16.5%, 1%<=K2O<=4%, and 0%<SnO2<=0.4%, wherein preferably the total content of CaO and MgO should be in a range of 4.5% to 10%, and the total content of Na2O and K2O should be in a range of 15.5% to 20.5%. The preparation method of the touch control cover glass comprises the following steps: melting the components mentioned above to form touch control cover glass, and then soaking the touch control cover glass in a high-temperature KNO3 solution to carry out ion exchange so as to replace the sodium ions (smaller in volume) in a certain depth of the surface layer of the touch control cover glass with potassium ions (bigger in volume), wherein during this process, an extruding effect will be generated on the surface layer, and finally a finished product of touch control cover glass, which has the advantages of high strength, wear resistance, and scratch resistance, will be obtained.

Description

technical field [0001] A composition of a touch protection glass (cover glass), the present invention especially refers to a glass with high strength, wear resistance and scratch resistance, and does not contain As 2 o 3 or Sb 2 o 3 Composition of touch protection glass with ingredients harmful to the environment. Background technique [0002] The touch protection glass (cover glass) used on the touch screen and liquid crystal display of portable electronic devices (such as mobile phones, tablets or notebook computers) is aluminosilicate glass, which is treated by ion exchange to Strengthening, this kind of glass contains only a very small amount of alkali metal oxide components, and can be made into glass by forming methods such as float method or down-draw method. [0003] As can be seen from the composition of the glass disclosed in the Taiwan Patent No. I252844, it contains As which is harmful to the human body and the environment. 2 o 3 and Sb 2 o 3 , if differe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/091C03C3/093
Inventor 余襄程
Owner FORTUNE TECH
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