Method for fabricating OGS glass with cover layer
A production method and covering layer technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problem of poor offset, printing process is not accepted by everyone, and the covering layer cannot completely cover low impedance Problems such as lines and output terminals, to achieve the effect of ensuring quality and basic requirements, and ensuring accuracy
Active Publication Date: 2015-06-10
抚州联创电子有限公司
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Problems solved by technology
Since the position tolerance of the cover layer is ≥±0.1mm, and the position tolerance of low-impedance lines, ITO transparent sensing terminals and output terminals is often ≥±0.15mm, the cover layer may not be able to completely cover the low-impedance lines and output terminals, resulting in poor relative displacement
Therefore, the printing process is not accepted by everyone
Method used
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Experimental program
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Embodiment
[0019] Example: A preferred embodiment of the present invention is, firstly, vacuum-coat a layer of molybdenum-lithium-molybdenum with a thickness of 0.10 μm on one side of tempered 550mm×450×0.7mm (L×W×T) large glass, and then pass yellow Photodevelopment and etching processes, etch optical alignment marks made of molybdenum, lithium and molybdenum around the coating surface to form an OGS substrate. The printing machine adopts the optical alignment auxiliary system to accurately print 8×5 (horizontal 8, vertical 5) white frame-shaped covering layers on the coating surface of the OGS substrate by capturing the alignment marks. Among them, the steel mesh requirements: the number of mesh is 450 mesh, the angle is 45 degrees, the tension is 13N±1N (Newton), and the thickness is 10μm. The printing accuracy of the covering layer is required to be ±0.05mm. The substrate after printing the cover layer is called OGS master. The OGS motherboard forms a low-impedance film on the cov...
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The invention discloses a method for fabricating OGS (One Glass Solution) with a cover layer, comprising the following steps: fabricating molybdenum-lithium-molybdenum material optical alignment marks at four corners of a large piece of glass through the manufacture procedures of vacuum coating, yellow light development and etching, wherein a printing machine accurately prints the cover layer on one face of the glass by capturing the optical alignment marks by using an optical alignment auxiliary system; and the manufacture procedures of yellow light development and etching are to orderly and accurately form a low-impedance line, an ITO (Indium Tin Oxide) sensing terminal and an output terminal on the cover layer by using the equipment optical auxiliary alignment system to capture the optical alignment marks; therefore, the accuracy of the position of each layer is ensured; as a result, the accuracy of the OGS glass is guaranteed. The method is characterized by fabricating the optical alignment marks before fabricating the cover layer, and completing the subsequent manufacture procedures all by using the equipment optical auxiliary alignment system to capture the marks; therefore, accurate formation of each layer is ensured, and the accuracy of the printing manufacture procedure of the OGS cover layer is improved; as a result, various colors of the OGS cover layer are realized and effective reduction of the cost is realized.
Description
technical field [0001] The invention relates to a capacitive touch screen with an OGS (One glass solution) structure, in particular to a method for manufacturing an OGS glass with a covering layer. Background technique [0002] At present, the mainstream capacitive screen in the market is mainly composed of cover glass, ITO (indium tin oxide) transparent sensor, FPC (flexible circuit board), control chip IC (control integrated chip), OCA (optical transparent adhesive), protective film and electronic components. Composition, the overall thickness exceeds 0.9mm, and the light transmittance is less than 86%. The OGS structure capacitive screen realizes the integration of cover glass and touch screen, that is, OGS glass. Eliminating the ITO transparent sensor, OCA, and multiple bonding processes, the cost of the touch screen is reduced by about 30%, the overall thickness is controlled within 0.7mm, and the light transmittance is greater than 90%. Compared with the current mai...
Claims
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IPC IPC(8): G06F3/044
Inventor 朱君毅陶力争刘世俊
Owner 抚州联创电子有限公司