Touch panel and manufacturing method thereof
A technology of touch panel and chemical method, which is applied in the direction of instruments, electrical digital data processing, and input/output process of data processing, etc. It can solve problems such as panel cracks, increase the overall thickness of electronic devices, and internal circuit damage, and achieve improved strength. , the effect of reducing the number of substrates
Active Publication Date: 2011-11-16
WINSKY TECH LTD
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Problems solved by technology
In the traditional touch panel, the substrate of the panel and the touch circuit are independent, thus increasing the overall thickness of the electronic device
[0004] In addition, since the surface of the touch panel needs to withstand pressure from outside the panel, if the touch circuit is directly formed on the aforementioned panel 104, then the stress from the external pressure may cause electrical influence on the circuit, and the panel 104 is subjected to repeated contact. The stress applied by the second pressure contact may cause cracks on the panel and even damage the internal circuit
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[0012] figure 2 A method and flow chart for forming a touch panel disclosed in the present invention are disclosed. Firstly a glass substrate is provided which comprises an alkali metal oxide (M 2 O), the glass substrate is strengthened by chemical method, and the glass substrate strengthened by chemical method will form compressive stress on the upper and lower surfaces of the substrate. Forming an indium tin oxide layer under the glass substrate, and making the formed indium tin oxide layer roughly consistent with the stress of the above-mentioned glass surface strengthened by chemical methods, thereby forming a compressive stress indium tin oxide layer, so as to Maintain the strengthened glass surface. Then, the sensing circuit, the driving circuit and the interconnection circuit between them are formed on the ITO layer.
[0013] In a preferred embodiment, a glass substrate is provided having 60% to 80% by weight silicon oxide, 1 to 15% by weight aluminum oxide, and 0.1...
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The invention relates to a touch panel and a manufacturing method thereof. The manufacturing method of the touch panel disclosed by the invention comprises the following steps: toughening a glass substrate by using a chemical method, wherein the glass substrate contains alkali metal oxides; forming an indium-tin oxide layer below the glass substrate; and forming a sensing circuit, a drive circuit and an interconnection circuit on the indium-tin oxide layer, wherein the interconnection circuit is arranged between the sensing circuit and the drive circuit.
Description
technical field [0001] The present invention relates to a touch panel, in particular to a capacitive touch panel. Background technique [0002] Figure 1A Showing a traditional capacitive touch panel 100, in addition to liquid crystals and color filters, the touch circuit also needs to have at least one additional glass substrate 101, on both sides of the glass substrate there is indium as a sensing unit and a driving unit Tin oxides 102, 103, wherein the upper layer of indium tin oxide 102 and the lower layer of indium tin oxide 103 are vertically arranged, and a UV film optical glue 105 is arranged between the glass substrate 101 and the panel 104, and then the glass substrate is vacuumed. The bottom 101 is attached to the panel 104 . Figure 1B is a cross-sectional view showing this conventional capacitive touch panel. [0003] Due to the demand for thin, light and small electronic devices, many palm-sized electronic devices further require the overall thickness to be t...
Claims
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IPC IPC(8): G06F3/041G06F3/044
Inventor 陈少扬
Owner WINSKY TECH LTD