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Preparing method for sapphire touch screen panel

A sapphire, touch screen technology, applied in surface polishing machine tools, manufacturing tools, metal processing equipment, etc., can solve the problems of poor touch screen quality and low yield, and achieve good uniformity, high yield and good wear resistance. Effect

Inactive Publication Date: 2015-12-23
江苏苏创光学器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the touch screen of this invention still has the problems of poor quality and low yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation method of the sapphire touch screen panel of the present embodiment specifically includes the following steps:

[0033]Step 1, crystal growth; put pure Al in the crucible of crystal growth furnace 2 o 3 Raw material, above the crucible is provided with a rotatable and lifting lifting rod, and the lower end of the lifting rod is clamped with a seed crystal with a C crystal orientation; the crystal growth furnace is vacuumed and a protective gas is introduced, and the temperature is raised to 2200 ° C, so that the Al 2 o 3 Melt, control the liquid surface temperature of the melt to 2055°C, place the seed crystal in Al 2 o 3 The upper surface of the melt is in contact with the melt for 1 hour; after the seed crystal is fully wetted with the melt, the seed crystal is pulled and rotated to achieve necking-shoulder expansion-equal diameter growth; in the necking stage, control The liquid surface temperature of the melt is 2050°C, the seed crystal is pulled...

Embodiment 2

[0044] The preparation method of the sapphire touch screen panel of the present embodiment specifically includes the following steps:

[0045] Step 1, crystal growth; put pure Al in the crucible of crystal growth furnace 2 o 3 Raw material, above the crucible is provided with a rotatable and lifting lifting rod, and the lower end of the lifting rod is clamped with a seed crystal with a C crystal orientation; the crystal growth furnace is vacuumed and a protective gas is introduced, and the temperature is raised to 2100 ° C, so that the Al 2 o 3 Melt, control the liquid surface temperature of the melt to 2055°C, place the seed crystal in Al 2 o 3 The upper surface of the melt makes it contact with the melt for 0.5h; after the seed crystal and the melt are fully wetted, the seed crystal is pulled and rotated to achieve necking-shoulder expansion-equal diameter growth; in the necking stage, Control the liquid surface temperature of the melt to 2050°C, pull the seed crystal up...

Embodiment 3

[0056] The preparation method of the sapphire touch screen panel of the present embodiment specifically includes the following steps:

[0057] Step 1, crystal growth; put pure Al in the crucible of crystal growth furnace 2 o 3 Raw material, above the crucible is provided with a rotatable and lifting lifting rod, and the lower end of the lifting rod is clamped with a seed crystal with a C crystal orientation; the crystal growth furnace is vacuumed and a protective gas is introduced, and the temperature is raised to 2150 ° C, so that the Al 2 o 3 Melt, control the liquid surface temperature of the melt to 2055°C, place the seed crystal in Al 2 o 3 The upper surface of the melt is in contact with the melt for 1 hour; after the seed crystal is fully wetted with the melt, the seed crystal is pulled and rotated to achieve necking-shoulder expansion-equal diameter growth; in the necking stage, control The liquid surface temperature of the melt is 2050°C, the seed crystal is pulle...

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Abstract

The invention relates to a preparing method for a sapphire touch screen panel. The preparing method comprises the specific steps of crystal growing, crystal ingot drawing, crystal cutting, laser sheet taking, grinding, chamfering, annealing, double-sided polishing, printing ink coating, heat baking and other procedures. According to the preparing method for the sapphire touch screen panel, the sheet forming quality is high, the rejection rate is low, and the production efficiency is high.

Description

technical field [0001] The invention relates to a preparation method of a sapphire sheet, in particular to a preparation method of a sapphire touch screen panel, and belongs to the technical field of sapphire processing. Background technique [0002] In modern life, electronic products such as mobile phones and tablet computers have become indispensable electronic products for people, and large screens have become the development trend of electronic products such as mobile phones, which requires higher and higher strength and light transmittance of touch screen panels. . [0003] With the advancement of technology, touch screen panels made of sapphire are used more and more widely. Sapphire has very good thermal properties, excellent electrical properties and dielectric properties, can maintain high strength at high temperatures, excellent thermal properties and transmittance, and is chemically resistant. The touch screen panel made of sapphire has high definition, good th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B29/02B24B37/04G06F3/041
Inventor 苏凤坚刘俊郝正平
Owner 江苏苏创光学器材有限公司
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