Sapphire mobile phone protecting film and processing technology thereof

A mobile phone film and processing technology, applied in the field of sapphire application, can solve the problems of easy breaking of mobile phones, high production cost, easy to produce scratches, etc., and achieve both economic and environmental benefits, stable mass production, and quality reduction. effect of the problem

Inactive Publication Date: 2017-02-15
TDG HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Smartphone panels are mostly made of plexiglass, the surface is prone to scratches, and the phone is easily broken when dropped. Before use, a protective film is usually attached to the surface of the panel. The protective film needs to be replaced regularly and will reduce the display effect of the screen
Although sapphire panels have been applied to several smartphone models, they have not been widely promoted due to high production costs. Sapphire film can greatly reduce the cost of using smartphones, and at the same time make the screen scratch-resistant, increase strength, and optimize display effects

Method used

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  • Sapphire mobile phone protecting film and processing technology thereof
  • Sapphire mobile phone protecting film and processing technology thereof
  • Sapphire mobile phone protecting film and processing technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Select an ingot with colorless uniformity, high transparency, no bubbles, grain boundaries and other defects, use the crystal orientation instrument to accurately locate the A side (18°55'), cut out the rectangular square material of the A side with a diamond wire swing cutting machine, and pass through the Head and tail, surface grinding to improve the flatness of the square (≤0.2 mm). Glue the rectangular square material on the resin strip and fix it on the workbench of the cutting machine, adjust the slot distance of the multi-wire cutting machine, set the descending speed of the workbench and the wire supply program to first decelerate and then accelerate, and the wafer is soaked to remove the glue after testing After qualified, rough grinding removes the line marks on the surface and improves the flatness of the workpiece surface. Use the Jingdiao machine to process the shape of the mobile phone film and chamfer the edges. Laser cut the rough outline of the listeni...

Embodiment 2

[0017] Select a crystal ingot with colorless uniformity, high transparency, no bubbles, grain boundaries and other defects, use the crystal orientation instrument to accurately locate the A side, cut out the rectangular square material of the A side with a diamond wire swing cutting machine, and improve it by removing the head and tail and plane grinding Square material flatness (≤0.2 mm). Glue the rectangular square material on the resin strip and fix it on the workbench of the cutting machine, adjust the slot distance of the multi-wire cutting machine, set the descending speed of the workbench within the range of 10-30 mm / h, and the wire supply at 5- Within the range of 20 m / min, decelerate first and then accelerate. After the wafer is soaked to remove the glue, after passing the test, the rough grinding removes the line marks on the surface and improves the flatness of the workpiece surface. Use the Jingdiao machine to process the shape of the mobile phone film and chamfer...

Embodiment 3

[0019] Select a crystal ingot with colorless uniformity, high transparency, no bubbles, grain boundaries and other defects, use the crystal orientation instrument to accurately locate the A side, cut out the rectangular square material of the A side with a diamond wire swing cutting machine, and improve it by removing the head and tail and plane grinding Square material flatness (≤0.2 mm). Glue the rectangular square material on the resin strip and fix it on the workbench of the cutting machine, adjust the slot distance of the multi-wire cutting machine, set the descending speed of the workbench and the wire supply program to first decelerate and then accelerate, and the wafer is soaked to remove the glue after testing After qualified, rough grinding removes the line marks on the surface and improves the flatness of the workpiece surface. Use the Jingdiao machine to process the shape of the mobile phone film and chamfer the edges. Laser cut the rough outline of the listening h...

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Abstract

The invention discloses a sapphire mobile phone protecting film, which is characterized in that the thickness of the sapphire mobile phone protecting film is 0.175-0.18mm, and the sapphire mobile phone protection film is composed of a sapphire substrate, acrylic optical cement and a silica gel layer. The processing technology of the sapphire mobile phone protecting film comprises the steps of crystal ingot selecting, orienting, cutting, head and tail removing, surface grinding, slicing, coarse grinding, shape processing, cleaning, annealing, double-side fine grinding, cleaning, double-side polishing, cleaning and gluing, wherein the step of orienting refers that a side-A is accurately positioned by using a crystal orientation instrument; the step of slicing refers that a cutting program of a multi-line cutting machine is set to slow down first and then accelerate; in the step of shape processing, a general outline is cut out by laser before a listening hole and function key holes are processed by using a fine carving machine; in the step of cleaning, a surfactant, water, hydrochloric acid plus hydrogen peroxide and water are used in sequence, and drying is performed by being matched with a special drying machine. According to the processing technology, a sapphire mobile phone protecting film which has no surface defects and is wear resistant, high in light transmittance and high in strength can be acquired, the product yield is improved, the cost is enabled to be reduced, and large-scale stable production is promoted.

Description

technical field [0001] The invention relates to a mobile phone film made of sapphire material and a processing technology thereof, belonging to the technical field of sapphire application. Background technique [0002] The composition of sapphire is Al 2 o 3 , commonly known as corundum, has a Mohs hardness of 9, second only to diamond, and is wear-resistant, corrosion-resistant, light-transmitting, and thermally stable. The domestic sapphire growth technology is relatively mature, and large-size, high-quality sapphire monoliths can be grown. crystal material. With the improvement of people's living standards, the use of electronic products has grown rapidly. At present, there are more than 624 million smartphone users in China. Smartphone panels are mostly made of plexiglass, the surface is prone to scratches, and the phone is easily broken when dropped. Before use, a protective film is usually attached to the surface of the panel. The protective film needs to be replace...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/02B28D5/00B28D5/04B24B1/00
CPCH04M1/026B24B1/00B28D5/00B28D5/042B28D5/045
Inventor 沈晓燕
Owner TDG HLDG CO LTD
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