19 inch touch screen panel with usb controller board
The 19 inch touch screen panel with usb controller board is mainly used industrial application, G+G structure,ILITEK touch controoler ic,can support operation with thick gloves ,thick tempered glass and thick PC on the top, mainly used in industrial, medical, outdoor advertising and other equipment. Deep customization including structural, surface treatment such as AG AR AF and other special effects are supported; All kinds if interface conversion Boards and drive Boards are provided to meet requirements from various customers.
This 19 inch usb touch screen panel product is our standard product. It has strong anti-jamming performance. It can match lcd display with 1280x1024 resolution . We have TN and IPS material display screens to choose from. Both general brightness and high-brightness schemes are available. Air-bonding and optical-bonding process can be selected according to the actual needs of customer projects.
|-20℃ ～ 70℃,≤85% RH
|-30℃ ～ 80℃,≤85% RH
|Power Supply Voltage
Q: What is the principle of capacitive touch screen to achieve multi-touch?
A: When the finger touches the capacitive screen, it affects the coupling between the two electrodes near the touch point, thus changing the capacitance between the two electrodes. When detecting the mutual capacitance, the lateral electrodes sequentially emit excitation pulse signals, and all the longitudinal electrodes receive signals at the same time, so that the capacitance values of all the intersections of the lateral and longitudinal electrodes can be obtained, that is, the capacitance of the two-dimensional plane of the entire touch screen. According to the two-dimensional capacitance change data of the touch screen, the coordinates of each touch point can be calculated. That is, the real multi-point coordinates can be calculated to realize multi-touch;
Q: What are the suggestions on the anti-ESD performance of capacitive touch screen to match customers end products?
A: On the one hand, enhancing the anti-ESD capability of IC , on the other hand, to achieve the best defense of TP against ESD. multiple ESD defenses should not be a problem. If the space is really limited, the standard can be appropriately reduced, and the anti-ESD capability is more determined by the whole machine structure. It is recommended that the FPC increase the 2k string resistance or add the relevant skin filter circuit and the TVs tube. Regarding the problem of static electricity, we must first understand the fact that the system ESD is different from the IC ESD. System ESD is mainly guaranteed by system design. The enhancement of IC ESD is only one aspect of system ESD enhancement. Therefore, even if the ESD of the IC is enhanced, the design of the screen body still requires ESD treatment to ensure the requirements of the system ESD. For system ESD, the most important thing is the mechanism design. If the mechanism is well designed and the energy that is coupled to the screen body is small, the ESD Design of the screen body can be relaxed.