Device and method for realizing multipoint touch control through single-layer ITO (Indium Tin Oxide)
A multi-touch, single-layer technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of complex process and difficult control of yield rate, and achieve simplified process flow and good quality. Improve the efficiency and achieve the effect of multi-touch
Inactive Publication Date: 2012-12-19
深圳市中显微电子有限公司
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[0006] The invention provides a single-layer ITO multi-touch device and system, aiming to solve the problem that the process of the touch function panel of the existing capacitive touch screen is very complicated, a metal line layer needs to be set, and the yield rate is difficult to control
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[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0026] see Figure 5 , is a schematic structural diagram of a single-layer ITO multi-touch device according to the first embodiment of the present invention. The single-layer ITO multi-touch device of the first embodiment of the present invention includes a touch substrate 10 , driving electrodes 11 and 13 and sensing electrodes 12 and 14 . The touch control substrate 10 may be glass, or any other transparent material substrate (such as acrylic, PET, etc.). A transparent front conductive film (not shown) is provided on the front of the touch substrate 10 , and the transparent conductive film may ...
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The invention belongs to the technical field of a touch panel and especially relates to a device and a method for realizing multipoint touch control through single-layer ITO (Indium Tin Oxide). The device for realizing the multipoint touch control through the single-layer ITO provided by the invention comprises a touch substrate, at least one driving electrode and at least one sensing electrode, wherein a layer of transparent conductive film is arranged on a surface of the touch substrate; the driving electrode is an X directional sensing block etched on the conductive film; and the sensing electrode is a Y directional sensing block etched on the conductive film. The device and the method for realizing the multipoint touch control through the single-layer ITO according to the embodiment of the invention have the advantages that the metal wiring is unnecessary; an ITO circuit is only etched for one time; the technological process of the products is greatly simplified; the functional panel glass can be produced by adopting a simple photo-etching production line; the manufacturing problem caused by the dependence of the present capacitance touch-screen touch functional panel substrate on high-precision photo-etching production line and metal coating is solved; and the yield is greatly increased.
Description
technical field [0001] The invention belongs to the technical field of touch panels, and in particular relates to a single-layer ITO device and method for realizing multi-touch. Background technique [0002] For the touch function panel of the existing capacitive touch screen, generally speaking, the ITO (indium tin oxide) conductive traces are on one side of the substrate or on both sides of the substrate, that is, the single-sided multilayer conductive wire structure and the double-sided multilayer conductive wire structure. structure. [0003] see figure 1 , figure 1 It is a schematic diagram of the existing single-sided multi-layer conductive wire structure touch panel ITO wiring and flexible circuit board connection. For the single-sided multilayer conductive line structure, the transparent insulating layer and metal (Mo-Al-Mo or Mo or Cu) will be etched on the ITO pattern after etching, figure 1 Among them, 31 and 34 are induction lines in the Y direction, 32 and 3...
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IPC IPC(8): G06F3/044
Inventor 周自立姚伏恒
Owner 深圳市中显微电子有限公司