Touchscreen devices contain many different components, two of the most important being a digitizer and a liquid-crystal display (LCD). The combination of these components allows a touchscreen device to both detect touch commands as well as project images. Without either a digitizer or a LCD, a touchscreen device simply won’t work as intended. So, what’s the difference between a touchscreen digitizer and an LCD exactly?
Consisting of a layer of glass, a touchscreen digitizer is a component that’s designed to convert analog touch signals into digital touch signals so that the device can respond with the appropriate command.
Touchscreens can’t respond to analog touch signals. Rather, they must first convert an analog touch signal into a digital touch signal. Once converted, the digital touch signal can be sent to processed by the touchscreen’s computer. The computer will identify the digital touch signal, followed by projecting the appropriate image or images on the display.
In addition to a digitizer, nearly all touchscreens have a an LCD. An LCD, of course, is an electronic display that’s characterized by the use of liquid pixels. Unlike with most other display technologies, LCD doesn’t use solid pixels. Rather, it uses liquid pixels comprised of an organic material.
Touchscreens need an LCD to produce images. If a touchscreen only has a digitizer and no display, it won’t produce images. In most touchscreens, the LCD consists of a panel that’s placed behind the digitizer.
A third component that’s found in touchscreens is backlighting. Backlighting works in conjunction with an LCD to produce the touchscreen’s images. LCDs aren’t capable of creating light, so in order for them to work, they need a separate lighting solution. Known as backlighting, it’s an essential component for all LCD touchscreens.
Light-emitting diode (LED) backlighting is frequently used in LCD touchscreens. It’s long-lasting, energy efficient and produces substantial illumination. Some LED backlighting also uses optical fiber or light guides to distribute the LED-produced light more evenly.
Touchscreens use a digitizer to convert analog touch signals into digital touch signals, and they use an LCD to produce images. Therefore, they are both essential components of touchscreens. For an LCD to work, though, it also needs backlighting. Typically consisting of LED bulbs, backlighting illuminates the LCD’s pixels with light.
Nowadays, in this market, there are already many products and equipment, which can be better for us to choose. Then in the selection process, we will encounter various products, touch screen is one of them, then LCD screen and touch screen have What's the difference!First, the subject is different1. LCD screen: a display device composed of an array of light-emitting diodes.2. Touch screen: It is an inductive liquid crystal display device that can receive input signals such as contacts.Second, the characteristics are different1. LCD screen: liquid crystals are placed between two parallel pieces of glass. There are many small vertical and horizontal wires between the two pieces of glass. The rod-shaped crystal molecules can be controlled to change the direction and refract the light to produce the picture. .2. Touch screen: The essence of a touch screen is a sensor, which consists of a touch detection component and a touch screen controller. The touch detection component is installed in the front of the display screen to detect the user's touch position, and then send it to the touch screen controller; the main function of the touch screen controller is to receive touch information from the touch point detection device, and at the same time, it can receive commands from the CPU and execute them .Third, the advantages are different1. LCD screen: zero radiation, low power consumption, small heat dissipation, small size, accurate image restoration, sharp character display, etc.2. Touch screen: Gives multimedia a new look, and is a very attractive new multimedia interactive device. Mainly used in public information query, industrial control, military command, electronic games, multimedia teaching, etc.If you want to know more about the difference between LCD screen and touch screen, I hope it can be helpful to you. If you want to know more about touch screen manufacturers, you can click on the website page to browse!