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Liquid crystal glass special-shaped processing method

A liquid crystal glass, special-shaped processing technology, applied in metal processing equipment, manufacturing tools, work carriers, etc., can solve problems such as poor quality, evaluation errors, non-compliance with requirements, etc., to achieve high quality of processed products, high processing efficiency, and avoid damage. Effect

Inactive Publication Date: 2020-04-28
东莞市德普特电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in order to achieve 100% screen-to-body ratio in the mobile phone market, a full-screen mobile phone with a variety of water drop screens / notch screens / blind hole screens and other front cameras integrated in one place is designed. The corner / "U" groove / four corners need to be processed on a rectangular glass substrate during the manufacturing process. In the existing glass special-shaped processing technology scheme, fine sand is used to grind the liquid crystal glass, and the glass itself is not considered. The impact of frame glue on product quality, and the existing processing methods cannot achieve accurate positioning, because in the production process, various factors (product characteristics, frame glue range, processing speed, grinding rod selection, etc.) Evaluation errors occur, and poor quality occurs in the mass production process: liquid crystal leakage, broken boards, chipping, etc., which affect the production of the subsequent process and do not meet the requirements

Method used

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  • Liquid crystal glass special-shaped processing method
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  • Liquid crystal glass special-shaped processing method

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Experimental program
Comparison scheme
Effect test

Embodiment

[0024] Such as Figure 1-2 As shown, a liquid crystal glass special-shaped processing method provided by the embodiment of the present invention includes the following steps:

[0025] S1. Move the liquid crystal glass to the positioning jig by means of vacuum adsorption (the way of vacuum absorption can prevent damage to the liquid crystal glass), the vacuum groove on the surface of the positioning jig fixes the liquid crystal glass, and then through the outside of the positioning jig Positioning column for initial positioning;

[0026] S2. Clean up the debris on the surface of the liquid crystal glass, use the CCD camera of Jingdiao machine to extract the image of the liquid crystal glass in the positioning fixture, realize the alignment of the marking points on the liquid crystal glass, and complete the secondary positioning;

[0027] S3. The secondary positioning data is transmitted to the Jingdiao machine. The Jingdiao machine drives the grinding rod to grind the outer ed...

experiment example

[0037] Compared with the previous processing of special-shaped liquid crystal glass (the defect rate of liquid crystal leakage, broken plate, and edge collapse is high, far greater than 0.3%), the liquid crystal glass produced by the application has high precision, and the defects of liquid crystal leakage, broken plate, and edge collapse are high. The defect rate is within 0.3%, especially the improvement of the night crystal leakage problem has largely solved the problem. Through the CPK (process capability index) accuracy verification, a total of 32 products were tested. The data are as follows:

[0038]

[0039]

[0040] Among them, PPK is the performance index, R1-R9 is the chamfer size (in mm) around the processed liquid crystal glass, and the above processing accuracy meets the product requirements.

[0041] Then carry out 4PB (four-point bending test) strength verification on the processed liquid crystal glass, and obtain image 3 and Figure 4 Probability diagr...

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Abstract

The invention provides a liquid crystal glass special-shaped processing method. The liquid crystal glass special-shaped processing method includes the following steps that S1, the liquid crystal glassis transferred to a positioning fixture by means of vacuum adsorption, a vacuum groove in the surface of the positioning fixture fixes the liquid crystal glass, and then initial positioning is conducted through a positioning column on the outer side of the positioning fixture; S2, debris on the surface of the liquid crystal glass is cleared, and a CCD camera of an engraving and milling machine isadopted to extract images of the liquid crystal glass in the positioning fixture to achieve alignment of mark points on the liquid crystal glass, and secondary positioning is completed; and S3, dataof secondary positioning is transmitted to the engraving and milling machine, the engraving and milling machine drives a grinding rod to grind and process the outer edge of the liquid crystal glass according to the data of secondary positioning, and the grinding rod successively rounds the four corners of the liquid crystal glass in the counterclockwise direction and processes the middle of the right end to form a U-shaped groove for two times. According to the processing method, the liquid crystal glass can be positioned with the high accuracy, the processing efficiency is high, and thus thequality of processed products is high.

Description

technical field [0001] The invention relates to a special-shaped processing method for liquid crystal glass. Background technique [0002] At present, in order to achieve 100% screen-to-body ratio in the mobile phone market, a full-screen mobile phone with a variety of water drop screens / notch screens / blind hole screens and other front cameras integrated in one place is designed. The corner / "U" groove / four corners need to be processed on a rectangular glass substrate during the manufacturing process. In the existing glass special-shaped processing technology scheme, fine sand is used to grind the liquid crystal glass, and the glass itself is not considered. The impact of frame glue on product quality, and the existing processing methods cannot achieve accurate positioning, because in the production process, various factors (product characteristics, frame glue range, processing speed, grinding rod selection, etc.) Evaluation errors occur, and poor quality occurs in the mass ...

Claims

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Application Information

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IPC IPC(8): B24B9/10B24B37/00B24B37/27B24B41/06B24B49/12
CPCB24B9/10B24B37/00B24B37/27B24B41/06B24B49/12
Inventor 黄超温宏茂颜少波张兴卫
Owner 东莞市德普特电子有限公司
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