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Advantages and Disadvantages of TFT Displays

TFT displays stands for thin film transistor display. This suggests that each pixel in the device has a thin film transistor connected to it. To provide perfect image quality on the screen, an electrical current coming into contact with the pixels activates the transistors.

TFT displays are widely used in televisions, computer monitors, medical equipment, home appliances, automobiles, information kiosks, POS terminals, low-end mobile phones, industrial sensors, smart homes and consumer electronics.

This article will focus on the features, advantages, and disadvantages of TFT displays.

What are the characteristics of TFT display?

Premium color display
TFT displays offer excellent color contrast, clarity and brightness settings, all of which can be customized to meet the requirements of any specific application.

Longer half-life
TFT displays have a much longer half-life than LED displays. These monitors come in various size configurations, which may affect the half-life of the device depending on its use and other considerations.

touchscreen options
Touch panels on TFT displays are either resistive or capacitive, depending on the manufacturer. The most common touchscreen is the resistive touch screen because it is cheap. However, you can buy capacitive touch screens, which are highly compatible with most modern smartphones and other electronic devices.

Excellent aspect ratio control
The aspect ratio control is very effective in ensuring there is no monitor ghosting. It enhances the clarity and quality of an image by mapping the number of pixels in the source image to the resolution pixels on the screen.

Enhanced versatility

TFT displays are available in a variety of interface layouts, making them compatible with a wide range of devices and a wide range of technological possibilities. Because of this compatibility and versatility, TFT displays are becoming increasingly popular.

What are the advantages of TFT display?

Less energy consumption
Are you looking for the most effective ways to reduce your electricity usage? Traditional display panels are composed of multiple circuits. These circuits must use large amounts of power to operate the cathode ray picture tube, and as the size increases, the power consumption of the internal circuits will undoubtedly increase.

In comparison, the power consumption of TFT LCD displays is much lower than that of traditional displays because most of its internal electrodes and driver ICs use it. As a result, you will ultimately be able to reduce your energy expenses as reflected in your regular bills.

Improve visibility
Image clarity is an extremely important factor to consider when using TFT displays, whether on TVs, medical devices, cars or smartphones. TFT displays provide an extremely high level of vision for anyone, regardless of age or eye fatigue.

Visibility is high because each pixel on a TFT displays maintains the intensity and color of light after absorbing the signal and emits continuous light, unlike cathode ray tube displays (CRT) which require bright spots to be refreshed periodically.

Therefore, the LCD screen TFT has excellent visual clarity and never flickers, reducing eye fatigue. Ultimately, every bit of information conveyed will be simply expressed and understood by all involved.

Excellent physical design and appearance
Considering the cutting-edge technology used in their production, TFT displays can have an extremely stunning appearance. The TFT display uses custom-designed integrated components such as resistive and capacitive touch screens, giving it an overall sophisticated look.

The elegance of TFT displays makes them ideal for screens on TVs, smartphones, cars, and any other personal electronic device you want.

Accurate, faster response times
Are you looking for a monitor that responds quickly and accurately to any command? TFT monitors are the best choice. Even on monitors with screen sizes up to 15 inches, response time is not an issue as an average of less than 30 milliseconds is enough to produce perfect image results. Some conventional monitors have a lot of problems in giving a response when any command is given. At some point, the response from the convective monitor will be inaccurate.

save space
TFT displays have a smaller overall footprint. They are lightweight and easy to move in any direction. They can be hung on the wall. They can be swivel-mounted anywhere on your desk during working hours, allowing you to face it 360 degrees.

This means they don’t take up a lot of space, making it easier to use efficiently and maintain order within your workstation. You'll have more time for your most important activities.

High quality picture effect
TFT LCD panels have used flat glass panels from the beginning. Unlike typical display screens, the screen effect is flat and right-angled, giving users a refreshing feeling. LCD panels make it easier to get high resolution on a small screen. For example, 18-inch CRT color monitors usually use a resolution of 1280×1024 or higher, which is not entirely appropriate, while a 17-inch LCD can achieve a resolution of 1280×1024.

Reduce eye fatigue
The output of large amounts of light is often one of the main causes of eye fatigue from display panels. However, TFT displays do not emit radiation like CRTs, LEDs, or VFDs. An LED backlight serves as the illumination source, and the blue light produced is effectively filtered by the TFT glass located on the front of the display.

So you don't have to squint or rub your eyes like you would when viewing a traditional screen. Therefore, TFT displays are ideal for anyone, including people with tired eyes or the elderly.

What are the disadvantages of TFT displays?

More expensive than other forms of monitors
Depends on the generation of the production line used, and the size of the production line itself. Building a TFT display factory typically costs billions of dollars. To manufacture a display of such a large size requires a high-generation production line.

As the production cost of TFT displays continues to rise, the procurement and operating costs of TFT displays are affected. As a result, TFT displays tend to be more expensive to purchase and operate than other displays.

Improper perspective
Compared to AMOLED screens, current micro-LED displays, and IPS LCD panels. The viewing angle of the TFT screen still needs to be stated in the data sheet whether it is 6 o'clock or 12 o'clock, and there is still the problem of grayscale inversion. The viewing angle is very narrow.

Because the optical axis of the liquid crystal is perpendicular to the surface, the display appears darker when viewed from a vertical angle relative to the substrate. However, when viewed from an oblique angle, the display does not appear dark due to light leakage caused by birefringence. As the voltage increases, refraction becomes common. Reflectance and transmittance in each direction vary with viewing angle. This is why TFT LCD has a narrow viewing angle.

restrictive utility
The panel of a TFT display is made of glass. When glass panels are hit by natural light, natural light glare can be seen. This renders TFT screens unusable for outdoor use, limiting their suitability for use only within buildings or other enclosed spaces. If you plan to perform tasks while seated in an outdoor environment, operating a TFT display will be difficult.

Rely on backlight to provide brightness
TFT monitors cannot emit light. This type of display has no light source; therefore, it requires a backlight to achieve the desired brightness level. Therefore, manufacturers have to adopt LEDs and build structures with backlighting.

Manufacturers must use LEDs and develop structures with backlights, which makes TFT displays very expensive to produce and operate. Additionally, it results in increased energy consumption compared to monochrome panels and OLED (PMOLED and AMOLED) screens, which is another factor that makes TFT displays less suitable for wearable devices.

Poor color saturation
If you compare the color saturation of TFT monitors with that of IPS LCD monitors and AMOLED monitors, you will find that the color saturation of TFT monitors is very poor. Therefore, anyone who values color saturation when purchasing these display panels will steer clear of TFT displays. However, with TFT displays, various remedies have emerged for this problem.

in conclusion
Although choosing an LCD monitor may not seem difficult, the market is saturated with a wide variety of display panels. When shopping, be sure to pay attention to the monitor's display life, response time, visual clarity, and touch sensitivity (if available).

Every LCD monitor on the market will have some disadvantages; therefore, be sure to weigh the monitor's disadvantages against its advantages. Therefore, it is crucial to get in touch and work with a reputable, reliable and trustworthy TFT LCD screen manufacturer.

Taken together, TFT displays have the advantages of excellent image quality and low energy consumption, but disadvantages such as higher price, narrow viewing angle and poor color performance also need to be considered. Various factors need to be weighed when choosing. You can contact the DINGTouch technical team directly for project plan evaluation to ensure that you choose a display screen that suits your specific application needs.