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OGS (one glass solution) capacitive touch screen and method for manufacturing same

A technology of capacitive touch screen and production method, which is applied in the direction of electrical digital data processing, instrument, data processing input/output process, etc., can solve the problems that the flexible circuit board cannot be connected normally and affect the quality of functions, and reduce equipment investment , Improve product yield and reliability, and reduce production costs

Inactive Publication Date: 2013-09-11
城步新鼎盛电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, printing ink on the inner surface of the touch screen may affect its functional quality, because the insulating ink will cover the electrodes on the edge of the conductive film layer, making it impossible to connect to the flexible circuit board (FPC for short).

Method used

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  • OGS (one glass solution) capacitive touch screen and method for manufacturing same
  • OGS (one glass solution) capacitive touch screen and method for manufacturing same
  • OGS (one glass solution) capacitive touch screen and method for manufacturing same

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0030] As an embodiment of the present invention, taking the preparation of six 7-inch OGS capacitive touch screens as an example, its specific manufacturing method includes:

[0031] 1. Take a Kanglin glass substrate with a size of 406.44mm×355.6mm×0.7mm, firstly carry out surface chemical strengthening, and then vacuum coat indium tin oxide (ITO for short) on one side of the tempered glass to obtain a transparent conductive film Floor.

[0032] 2. Etch the circuit pattern on the ITO vacuum coating film through the yellow light etching process, so that the conductive film layer pattern 2 with 6 single-layer traces is distributed on the conductive glass substrate 1, see figure 1 .

[0033] 3. Cut the etched conductive g...

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Abstract

The invention discloses an OGS (one glass solution) capacitive touch screen and a method for manufacturing the same. The method for manufacturing the OGS capacitive touch screen includes chemically strengthening the surfaces of a glass substrate, and then coating a transparent conducting film layer on one surface of the glass substrate; etching a circuit on the transparent conducting film layer to obtain a conducting glass substrate with distributed conducting film layer patterns; performing screen printing on positions, except for small conducting holes, of a frame by insulating printing ink, curing the printing ink and forming a black insulating film layer; performing screen printing on the small conducting holes by conducting printing ink and nano-silver paste; adhering the nano-silver paste with a flexible printed circuit to obtain the touch screen. The frame is arranged on the surface, which is coated with the transparent conducting film layer, of the glass substrate. A viewing area is arranged inside the frame. The OGS capacitive touch screen and the method have the advantages that requirements on the appearance quality (namely, coloring of the frame of the touch screen) and the functional quality (in other words, edge electrodes of the touch screen are sufficiently and firmly connected and conducted with the flexible printed circuit) of the OGS capacitive touch screen can be met simultaneously, the bonding strength of the small conducting holes and the flexible printed circuit is improved, accordingly, the conductivity of the OGS capacitive touch screen is improved, the product yield is increased, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of capacitive touch screens, in particular to an OGS capacitive touch screen and a manufacturing method thereof. Background technique [0002] One Glass Solution (OGS for short) refers to the technology of directly forming ITO conductive film and sensor on the protective glass. A piece of glass plays the dual role of protective glass and touch sensor at the same time. OGS technology integrates conductive glass and protective glass into one piece of glass, which can better meet the needs of ultra-thin smart terminals and improve display effects. Therefore, capacitive touch screen products using OGS structure are high-grade, thin, and simplified. Reduce production costs, improve product performance and production yield. [0003] The key to this production technology is how to ensure both the appearance quality of the capacitive touch screen and its functional quality. Because silk screen printing of ink on t...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 周剑飞杨新湘
Owner 城步新鼎盛电子科技有限公司
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