XV-442-57CQB-1-10 触摸屏 可以利用压力感应进行控制

XV-442-57CQB-1-10 触摸屏是一种电子设备输入设备，其基本原理是用手指或其他物体触摸安装在显示器前端的触摸屏，然后系统根据手指触摸的图标或菜单位置来定位选择信息输入。触摸屏由触摸检测部件和触摸屏控制器组成，其中触摸检测部件安装在显示器屏幕前面，用于检测用户触摸位置，接受后送触摸屏控制器；而触摸屏控制器的主要作用是从触摸点检测装置上接收触摸信息，并将它转换成触点坐标，再送给CPU，它同时能接收CPU发来的命令并加以执行。XV-442-57CQB-1-10 触摸屏按照工作原理和传输信息的介质可以分为很多种类，如电阻式、电容式、红外线式等。电阻式触摸屏利用压力感应进行控制，当用户触摸屏幕时，两层导电层在触摸点位置就有了接触，电阻发生变化，在X和Y两个方向上产生信号，然后送触摸屏控制器。控制器侦测到这一接触并计算出（X，Y）的位置，再根据模拟鼠标的方式运作。电容式触摸屏则依靠检测屏幕上某个或些点的微小电容值变化来进行判断触点。红外线式触摸屏在显示器上加上光点距架框，无需在屏幕表面加上涂层或接驳控制器，光点距架框的四边排列了红外线发射管及接收管，在屏幕表面形成一个红外线网，用户以手指触摸屏幕某一点，便会挡住经过该位置的横竖两条红外线，计算机便可即时算出触摸点位置。

XV-442-57CQB-1-10

The XV-442-57CQB-1-10 touch screen is an electronic device input device. Its basic principle is to touch the touch screen installed at the front of the display with fingers or other objects, and then the system locates and selects information input based on the icon or menu position touched by the fingers. The touch screen consists of a touch detection component and a touch screen controller, wherein the touch detection component is installed in front of the display screen to detect the user’s touch position, receive and send the touch screen controller; The main function of the touch screen controller is to receive touch information from the touch point detection device, convert it into contact coordinates, and then send it to the CPU. It can also receive commands from the CPU and execute them. The XV-442-57CQB-1-10 touch screen can be classified into many types based on its working principle and the medium used for transmitting information, such as resistive, capacitive, infrared, etc. The resistive touch screen utilizes pressure sensing for control. When the user touches the screen, the two conductive layers make contact at the touch point, causing a change in resistance and generating signals in the X and Y directions, which are then sent to the touch screen controller. The controller detects this contact and calculates the position of (X, Y), and then operates in a simulated mouse manner. Capacitive touch screens rely on detecting small changes in capacitance values at one or more points on the screen to determine the contact points. The infrared touch screen adds a light point distance frame to the display without the need for coating or connecting controllers on the screen surface. The four sides of the light point distance frame are arranged with infrared emission and reception tubes, forming an infrared network on the screen surface. When users touch a certain point on the screen with their fingers, it will block the horizontal and vertical infrared rays passing through that position, and the computer can calculate the position of the touch point in real time.