Request
for Quote

E-mail

How to Develop the Capacitive Touch to Grab the Market Key

At this stage, most of the patents related to capacitive touch technology are mastered by several major manufacturers. The quality of the key touch IC affects the performance of the actual touch experience, because capacitive touch uses the ITO of the LCD panel to be coated with transparent wires to form an electric field on the surface of the panel. When the user touches with a finger, the capacitance value changes. At this time, the touch IC converts the precise touch coordinates. The whole process of the panel Noise may be received at the same time, and the motion sensing operation process is complicated. Among them, there are a bunch of patented technical restrictions that prevent other manufacturers from easily entering the market. Manufacturers may also hinder the cost of touch ICs, resulting in increased product costs.


It is generally believed that capacitive touch technology is more difficult to break through the size limit, and the size that may be developed is smaller than that of resistive touch. In fact, capacitive touch is not impossible for larger-sized panels, but its cost structure cannot compete with resistive touch panel technology of the same size, resulting in less interest in the relevant manufacturers to discuss production.


Observing the cost of a 15-inch touch screen, the use of capacitive touch technology will increase the cost by 3 to 4 times that of resistive technology. However, this situation has been improved a lot with the efforts of various manufacturers. The original cost gap is gradually closing, and the size of the lab test can reach a spectrum close to 40 inches.


However, the key to the realization of capacitive touch technology is to sense the slight current change caused by the user's touch on the screen. If the size of the panel developed continues to increase, the noise received by the touch sensing IC will increase sharply, and the large panel will also bring more stringent noise suppression test of touch IC.


In addition, the current practice of capacitive touch panels is to coat ITO with transparent wires. The larger the panel, the higher the impedance. There is a considerable possibility that the induction trigger signal is not even and the trigger status cannot be clearly confirmed. The new method is to use array scanning to improve, the panel area is divided into several square areas, through the system step by step to detect the test. Due to multi-task analysis, the performance limitation of a single sensor IC can be compensated, and the background noise can be filtered out systematically through multi-party comparison analysis.

Relevant Blog
  • Note for Making Membrane Switch Panel

    Note for Making Membrane Switch Panel

    December 30, 2020When the membrane switch is manufactured, the characters will be printed on the membrane panel. Need to check carefully to prevent errors. To this end, I will tell you about the precautions for making...view
  • Precautions and FAQs About the Capacitive Touch Screen

    Precautions and FAQs About the Capacitive Touch Screen

    February 15, 20221. If you change the display resolution or display mode of the touch screen when operating the capacitive touch screen, or adjust the refresh frequency of the touch screen controller by yourself, and ...view
  • Features Of Membrane Switches

    Features Of Membrane Switches

    December 10, 2020Among various high-tech products, the membrane switch panel is an ideal choice , which is mainly composed of mask, mask adhesive, upper circuit, isolation layer, lower circuit and adhesive. Let's ...view
  • Custom Film Switch Advantages

    Custom Film Switch Advantages

    April 3, 2020(1) DurabilityThe service life of the customized film switch can reach more than one million times. The reason for such a long service life is that the action of the switch is realized by the vertical...view
  • The Role of Materials in the Design of Membrane Panel Products

    The Role of Materials in the Design of Membrane Panel Products

    December 10, 2020Switch products are ubiquitous in people's daily life, and people are in contact with such products all the time. As the basis of the product, materials can not only provide people with different ...view
  • Intelligent Pressure Check of Membrane Switch Panel

    Intelligent Pressure Check of Membrane Switch Panel

    October 17, 2019Membrane switch panel membrane switch is, and is in the form of a panel appears, is an intelligent switching device, can be seen everywhere in the market and in life, membrane switch panels and popula...view
Product Inquiry