Pressure sensing input device
An input device and pressure sensing technology, applied in the field of pressure sensing, can solve problems such as complex manufacturing procedures, small deformation, and distortion of touch pressure signals, achieving high sensitivity, improving experience and satisfaction
Pending Publication Date: 2017-01-11
TPK TOUCH SOLUTIONS (XIAMEN) INC
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Problems solved by technology
Among them, ITO (Indium Tin Oxide, tin-doped indium oxide) thin film is one of the commonly used conductive films, but with the development, new products put forward higher requirements for the contact pressure accuracy and sensitivity of the conductive film. The electrodes formed by ITO on the conductive film have the following problems: (1) As the resistance and application size become larger, the current transmission speed between the electrodes becomes slower, resulting in a corresponding speed (referring to the time from touching the fingertip to detecting the position) ) slows down; (2) when the conductive film formed by ITO is applied with pressure, only the deformation is small, the resistance changes little, and the pressure sensing accuracy is poor; (3) as the length of the sensing electrode increases , and the line width continues to decrease, the resistance of the sensing electrode formed by the existing ITO increases, causing the touch pressure signal to be distorted; (4) ITO is expensive and the manufacturing process is complicated
Method used
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no. 3 example
[0110] see Figure 9 , the ninth embodiment of the present invention provides a method for manufacturing a pressure-sensing input device. Please refer to the third embodiment of the present invention for the identification symbols involved in the following Figure 3A-3B , which specifically includes the following steps:
[0111] Step S1: providing a first substrate 31; and
[0112] Step S2: forming a first conductive layer 32 with a plurality of pressure sensing electrodes 3211 on one surface of the first substrate 31;
[0113] The pressure sensing electrodes 3211 are formed by metal grids.
[0114] Wherein, the step S2 further includes forming a first pressure sensing configuration area 321 and a first touch sensing configuration area 3222 with complementary areas on the first conductive layer 32, and the pressure sensing electrodes 3211 are disposed on the first conductive layer 32. In the first pressure sensing configuration area 321 , a plurality of first touch sensing ...
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Abstract
The invention relates to the technical field of pressure sensing, and in particular to a pressure sensing input device. The pressure sensing input device comprises a first substrate and a first conducting layer, wherein the first conducting layer is provided with a first pressure sensing electrode; the first pressure sensing electrode is used for detecting the pressure applied on the conducting layer and is formed by metal meshes; the metal meshes are made of nanoscale metal particles. A first touch sensing electrode is also arranged on the conducting layer.
Description
[0001] 【Technical field】 [0002] The invention relates to the technical field of pressure sensing, in particular to a pressure input device. [0003] 【Background technique】 [0004] Transparent conductive films are now widely used in flat panel displays, photovoltaic components, touch panels, and electromagnetic shielding. Among them, ITO (Indium Tin Oxide, tin-doped indium oxide) thin film is one of the commonly used conductive films, but with the development, new products put forward higher requirements for the contact pressure accuracy and sensitivity of the conductive film. The electrodes formed by ITO on the conductive film have the following problems: (1) As the resistance and application size become larger, the current transmission speed between the electrodes becomes slower, resulting in a corresponding speed (referring to the time from touching the fingertip to detecting the position) ) slows down; (2) when the conductive film formed by ITO is applied with pressure, ...
Claims
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Inventor 陈风何加友陈艺琴
Owner TPK TOUCH SOLUTIONS (XIAMEN) INC