Production method of touch display screen

A technology of touch display screen and manufacturing method, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of large assembly tolerances, reduce scrap rate, improve integration accuracy, and improve product accuracy Effect

Active Publication Date: 2015-07-01
LEAD COMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem of large assembly tolerances in the existing technology of positioning with outlines, and proposes a manufacturing method for laminating capacitive touch screens and display screens using graphic positioning

Method used

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  • Production method of touch display screen
  • Production method of touch display screen
  • Production method of touch display screen

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Experimental program
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Effect test

Embodiment Construction

[0017] The invention discloses a method for manufacturing a touch screen, which comprises the following steps:

[0018] Step 1: Prepare the alignment mark (MARK) on the sensing glass and display glass of the capacitive touch screen by using the yellow light process technology;

[0019] Step 2: Bind the display IC to the display glass, bind the flexible circuit board (FPC) to the display glass, and bind the flexible circuit board to the sensing glass;

[0020] Step 3: Carry out functional inspection and appearance inspection on the bound display glass and sensor glass respectively;

[0021] Step 4: Apply optical adhesive between the display glass and the sensing glass that have passed the functional inspection and appearance inspection;

[0022] Step 5: Put the glued display glass and sensing glass into the alignment equipment, where the display glass is adsorbed on the workbench of the alignment equipment, with the side coated with optical adhesive facing upwards; the sensing...

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Abstract

The invention discloses a production method of a touch display screen. The production method includes the main steps of firstly, preparing alignment marks on induction glass and display screen glass of a capacitive touch screen; secondly, bonding an IC (integrated circuit) and a flexible circuit board to the display screen glass and bonding the flexible circuit board to the induction glass; thirdly, inspecting the display screen glass and the induction glass; fourthly, applying optical adhesive between the display screen glass and the induction glass; fifthly, using a camera of an alignment device to capture the positions of the alignment marks on the display screen glass and the induction glass, allowing a controller of the alignment device to calculate deflection of the display screen glass and the induction glass, and controlling a motor to drive the display screen glass or induction glass to move for correction; and sixthly adhering the display screen glass and the induction glass. Precision in integration of the capacitive touch screen and a display module is improved, production flow of TLI (transport-level interface) products is shortened, rejection rate of products is reduced, product precision is more than doubled, and accordingly product grade and market competitiveness are improved.

Description

technical field [0001] The invention relates to a touch screen, in particular to a method for manufacturing a capacitive touch screen. Background technique [0002] In the existing capacitive touch display (TLI) manufacturing technology, after the capacitive touch screen (TP) and the display screen (LCM) are manufactured respectively, they are positioned with the outline of the TP and the outline of the LCM, and then the two are seamlessly bonded . The shape of TP is cut by numerical control cutting machine (CNC), the tolerance is + / -0.05mm, the tolerance of LCM shape is + / -0.1mm, plus the influence of the precision of the fixture and equipment used when laminating TP and LCM, the process tolerance is in + / -0.15mm or more. It is difficult to ensure that the glass display area of ​​the display screen corresponds accurately to the functional area of ​​the TP, and even accidental touches may occur. Contents of the invention [0003] The present invention aims to solve the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
Inventor 杨双辉曹智勇谢绍梅
Owner LEAD COMM
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