The LCD segment code screen is: the segment code LCD screen. How much do you know about the working principle and application of the segment code LCD screen? The LCD segment code screen is the latest technology developed now, and the application is relatively wide. The specific application range And the principle, let us understand it together:
Segment LCD, or segment LCD, is one of the LCD products, but in the LCD industry, it is generally called pattern LCD, pen segment LCD, monochrome LCD, etc. . It is used to distinguish it from the dot matrix LCD screen, so the name of the segment LCD is not a strict expression or classification.
LCD is classified from the type: TN type LCD, HTN type LCD, STN type LCD, FSTN type LCD and so on.
TN-type LCD screens usually have three modes: fully transparent, semi-transparent and reflective. Liquid crystals generally do not actively emit light, and need to be connected externally to provide a light source. The fully transparent liquid crystal light source comes from the back of the liquid crystal; the reflective liquid crystal light source comes from the front of the liquid crystal, is reflected by the polarizer of the liquid crystal screen, and then reaches the observer's eyes; the semi-transparent liquid crystal is generally between the two , There is light from the back of the liquid crystal, but also reflected light from the front. Therefore, the transparent liquid crystal requires the use of a backlight, while the reflectivity does not require a backlight, and the semi-transmissive liquid crystal can be used with or without a backlight. It is impossible to observe the display on the LCD screen without backlight in the dark.
The purpose of the LCD segment code screen:
Instruments and meters: water meter, bus system, gas meter, fuel dispenser count display office equipment: punch card machine, fax machine, attendance machine
Communication equipment such as access control system: Internet phone, various IC card phones, IP phone Tax system: tax control machine
Banking system: POS machine Industrial control equipment: automatic control
Medical equipment: physiological monitors and various health equipment, various man-machine interfaces, handheld devices, etc.
The above is the working principle and application of the LCD segment code screen. I hope the above content can help you. If you have anything you don’t know, you can consult us, and we will answer you professionally.
