How should I pick an TFT LCD display module?

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TFT Display

Currently, TFT LCD(Thin Film Transistor) leads the global flat panel display market. Due to its low price, clear colours, suitable view angles, low power consumption, manufacturing-friendly design, slim physical structure, etc., it has driven CRT (Cathode-Ray Tube) VFD (Vacuum Fluorescent Display) out of the market and restricted LED (Light Emitting Diode) displays to only large display areas. TFT LCD display are widely used in TVs, computer monitors, medical devices, home appliances, cars, kiosks, point-of-sale (POS) terminals, low-end mobile phones, industrial metres, smart homes, handheld devices, video game systems, projectors, consumer electronics products, and advertisements, among other things. Please visit our knowledge base to learn more about TFT display.

When selecting the best TFT LCD display module for your application, there are many factors to take into account. Please refer to the list of questions below to see if you can discover a good fit.

Size

It serves as the beginning of every endeavour. Outside dimensions (width, height, and thickness) and AA are the two dimensions to take into account (active area or pixel area).

Resolution

Resolved issues will determine clearance. Nobody likes to look at a monitor that plainly shows pixels. Because of this, resolution has improved from QVGA and VGA to HD, FHD, 4K, and 8K. However, better resolution also translates to higher costs, power usage, memory size, data transfer speed, etc

Orientation or Aspect Ratio.

It is necessary to take into account whether the orientation is landscape or portrait. The aspect ratio is also highly significant. Despite previously being content with 4:3, you may now be open to testing a wider screen, such as 16:9 or even 21:9.

Brightness

It’s crucial to choose the right TFT screen brightness. If you choose a highly bright LCD that will only be used indoors, you won’t have to worry about the LCD image washing out in bright light or the battery draining too quickly. The table below includes some general advice.

Customers can choose from products from Display that are standard brightness, medium brightness, high brightness, and high-end sunlight readable IPS TFT LCD displays.

Angle of View

If money is tight, TN type TFT LCDs can be chosen, but there is a choice of viewing angles at either 6 or 12 o’clock. Care must be taken when inverting the grayscale. When selecting an IPS TFT LCD with no viewing angle issue for a high-end product, be prepared to pay more.

A Ratio of Contrast

Similar to the choice of viewing angle, TN type TFT LCDs are less expensive but have lower contrast, while IPS type TFT LCDs typically cost more but have much higher contrast..

Temperature

The temperature range offered by standard TFT LCD displays is sufficient for the majority of applications. -20 to 70 oC. However, in some (always) outdoor applications, such as those requiring operation in temperatures ranging between –30 and –80 °C, it is necessary to use a special liquid crystal fluid. A heater is required to meet the -40°C operating temperature requirement. Temperature storage is usually not an issue because many laser LCD standard TFT display can withstand temperatures ranging from -40 to 85 °C. If you have any questions, feel free to contact our engineers for more information.

 Use electricity

In some handheld devices, taking power into account can be crucial. The backlight of a TFT LCD display module typically uses more power than the other components of the display. Backlighting technology must be dimmed or turned off completely when not in use. Sleep mode or even using controller memory must be taken into account in the design for some extremely power-sensitive applications. For more information, feel free to reach out to our engineers.