Display touch screen structure and method for producing the same

A manufacturing method and touch screen technology, which can be applied to instruments, ion implantation plating, coating, etc., can solve the problems of complex manufacturing process, high cost and low yield, and achieve simplified manufacturing process, reduced production cost and high yield. improved effect

Active Publication Date: 2009-07-29

深圳豪威显示科技有限公司

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AI-Extracted Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a display touch screen structure, aiming to solve...

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Method used

Specifically, Fig. 2 has shown a kind of display touch screen structure of the embodiment of the present invention, comprises base chemically strengthened glass 1, upper conductive layer 2 and lower conductive layer 3, upper conductive layer 2 comprises PET film 21 and coating The ITO film 22 on the surface o...

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Abstract

The invention provides a display touch-screen structure and a manufacturing method thereof. The touch-screen structure comprises base chemically-reinforced glass, an upper conductive layer and a lower conductive layer; the upper conductive layer comprises a PET film and an ITO film coated on the surface of the PET film; the lower conductive layer is formed by the ITO film which is directly manufactured on the surface of the base chemically-reinforced glass; and isolating points are arranged between two ITO films. The manufacturing method comprises the following steps: a continuous magnetron sputtering coating machine and an ITO ceramic target are adopted to coat the ITO film on the chemically-reinforced glass; the work gas is Ar and the pressure is between 0.1 and 1 Pa; the coating temperature is between 100 and 390 DEG C; and the coating pace is between 1.5 and 6 minutes. The invention not only simplifies the manufacturing process of the touch-screen, enhances the yield of products and reduces the manufacturing cost but guarantees that the intensity of the chemically-reinforced glass cannot be changed.

Application Domain

Vacuum evaporation coatingSputtering coating +2

Technology Topic

EngineeringDisplay device +3

Image

Examples

Experimental program(1)

Example Embodiment

[0012] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0013] Compared with the prior art, the present invention provides a display touch screen structure that has simple manufacturing process, improved product yield, and reduced production cost, while ensuring that the strength of chemically strengthened glass does not change. For this reason, the embodiment of the present invention The conductive layer under the touch screen structure of the display is composed of an ITO film directly fabricated on the surface of the base chemically strengthened glass.

[0014] Specifically, figure 2 A display touch screen structure of an embodiment of the present invention is shown, including a base chemically strengthened glass 1, an upper conductive layer 2 and a lower conductive layer 3. The upper conductive layer 2 includes a PET film 21 and an ITO film 22 coated on the surface of the PET film 21 The lower conductive layer 3 is composed of an ITO film directly fabricated on the surface of the base chemically strengthened glass 1, and an isolation point 4 is provided between the two ITO films 22 and 3. Since the lower conductive layer 3 is directly composed of an ITO film, the cost is reduced.

[0015] In this embodiment, the surface of the PET film of the upper conductive layer is provided with a hardened layer 5 to protect the touch screen from damage during use. The hardened layer 5 is made of materials commonly used in the art, such as plastic.

[0016] The above-mentioned display touch screen structure adopts continuous magnetron sputtering coating machine, using ITO ceramic target, working gas is Ar, 0.1-1Pa, coating temperature is 100-390℃, and coating cycle is 1.5-6 minutes. The ITO film is made on chemically strengthened glass. In this way, the manufacturing process of the touch screen is simplified, the yield of the product is improved, and the production cost is reduced, and at the same time, the strength of the chemically strengthened glass is guaranteed not to change.

[0017] In order to further improve the product yield, the above working conditions, the pressure is preferably 0.3-0.8 Pa, the coating temperature is preferably 160-390°C, and the coating cycle is preferably 2-5 minutes.

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Description & Claims & Application Information

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