The principle of touch screen is actually very simple. Simply put, a touch screen is installed on the display to become a display with touch function. The more popular in the market is the LCD touch monitor (CRT has gradually withdrawn from the arena). According to the different installation of touch screens, it is generally divided into four types: resistive, capacitive, sonic, and infrared; touch screens on the market mainly use resistive touch screens, because their installation is relatively simple. There are professional companies specializing in spontaneous mold design and design of all-in-one touch monitors in China. Unlike the ones on the market that are modified with other displays, the modified touch monitors are prone to quality problems, while the integrated development and design of touch monitors The display is not prone to damage to the touch screen.
From the front, the touch display is not significantly different from the ordinary display. From the back, it has one more signal line than the ordinary display, that is, the signal line connected to the touch screen. When ordinary monitors are in use, they generally do not need special drivers, while touch monitors must have special touch screen drivers when they are in use, otherwise touch operations will not be possible.
First of all, as a professional touch display manufacturer, the overall mold and mechanism design, the layout of electronic accessories, and the fixing of the touch screen are all unique ways. Take GVision's products, in addition to the self-developed and designed A/D board, the overall The design of the mechanism also made a professional design for the fixation of the touch screen, using several uniquely designed iron parts as fixation, instead of simply fixing and pasting with adhesive strips. Secondly, professional touch monitors generally reserve a certain degree of installation space, which can be compatible with other touch screens. Third, professional touch monitors work relatively stable, not only the contacts are accurate, but also the whole display will not shake under touch contact, and is relatively stable. Fourth, the quality of the whole touch display is guaranteed. So the overall performance is more trustworthy. This kind of touch display is generally used in relatively high-end places with strict requirements for touch display, such as high-end catering POS systems, industrial sites, medical systems, conference rooms, etc.
Based on price pressure in China, users use the disassembly and patchwork more frequently. This market is rather chaotic. For the better ones, use a branded machine on the market to transform, remove the shell, fix the touch screen on the front of the display with a rubber strip, and then install the front frame and shell. Under normal circumstances, the shell is to use tools to eliminate some of the components that hinder the installation of the touch screen. Lead out the touch screen control line, and then install the shell. If the quality is a little bit worse, it is directly transformed with the copycat display on the market. Basically, these displays cannot get effective quality assurance, and after-sales maintenance is a bit troublesome.
These applications are generally low-priced query applications. Medical, high-end POS, industrial touch monitors are generally equipped with infrared touch screens, 5-wire resistive touch screens, capacitive touch screens, sonic screen displays, and 4-wire resistors are mainly used in inquiry places. In addition, some large-size LCD TVs are generally equipped with infrared touch screens and acoustic wave screens, of which infrared screens are more common.
In general, if customers value quality, it is recommended to choose branded touch monitors, because after-sales service is guaranteed, if customers are more concerned about prices, they can consider using assembled monitors.
