Capacitive touch screen
A capacitive touch screen and touch signal technology, which is applied to the input/output process of electrical digital data processing, instruments, and data processing, etc., can solve the problems of complex manufacturing process and difficult wiring, and achieve the effect of simplifying the manufacturing process.
Active Publication Date: 2015-07-22
BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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Problems solved by technology
However, such a touch screen structure requires multiple layers, such as the above-mentioned row electrode layer, column electrode layer, common electrode layer, and insulating layer or protective layer between different conductive layers, so the manufacturing process is more complicated, especially in small-sized touch screens. Wiring is also relatively difficult
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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0020] In order to simplify the manufacturing process of the touch screen, the following implementation solution of the capacitive touch screen is provided in the embodiment of the present invention.
[0021] image 3 It is a schematic plan view of the structure of the capacitive touch screen in the embodiment of the present invention; Figure 4 for image 3 The cross-sectional view of the capacitive touch screen along the line A-A. combine image 3 and Figur...
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Embodiments of the present disclosure provide a capacitive touch panel capable of simplifying a manufacture process thereof. The capacitive touch panel comprises a first substrate and a second substrate provided opposite to each other, wherein a common electrode and at least two parallel electrode lines are disposed between the first substrate and the second substrate, at least two touch electrodes are connected in series by each of the electrode lines, any two of the touch electrodes connected by a same electrode line have an area different from each other, varying sequentially, the touch electrode and the common electrode form a capacitor, and the electrode line is connected to a touch signal sensing device. The capacitive touch panel provided by embodiments of the present disclosure may achieve one-dimensioned positioning.
Description
technical field [0001] The invention relates to the field of touch screens, in particular to a capacitive touch screen. Background technique [0002] Capacitive touch screen is a relatively common touch screen implementation form in the prior art, and its working principle is roughly as follows: [0003] Row electrodes and column electrodes are arranged in the capacitive touch screen, such as figure 1 and figure 2 As shown; the row electrodes and the column electrodes are insulated from each other, and both form a capacitive structure with the common electrode. When touching the screen, due to the electric field in the human body, a coupling capacitance is formed between the finger and the row electrode and column electrode in the touch screen; due to the capacitance change of the touch point, an induced current flowing to the touch point appears in the row electrode and column electrode . The strength of the induced current is inversely proportional to the distance fro...
Claims
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IPC IPC(8): G06F3/044
CPCG06F2203/04103G06F3/044G06F3/0443
Inventor 陈小川黎蔚李晓坤
Owner BEIJING BOE OPTOELECTRONCIS TECH CO LTD