Industrial LCD Display Product Parameters

- Aug 06, 2018 -

Industrial LCD display space size

Space issues are a significant factor that designers in the industrial sector need to consider. Industrial liquid crystal displays are currently in production from 6.4 inches to 70 inches.

Industrial LCD display visibility

Good visibility is a bright spot in industrial LCDs. Displays in industrial applications require clear and precise visual effects from multiple angles in a strong light environment. Most industrial environments are an environment surrounded by glare, which poses a challenge to the visibility of the display.

The brighter the environment, the more difficult it is to transmit the LCD, because people's standard readable brightness is between 250 and 300 cd/m2. Some LCD manufacturers are trying to extend the range to above 450 cd/m2. But these displays require more energy and this is not the best solution. Again, these levels of brightness are not sufficient to function in a very bright environment.

At present, many domestic manufacturers have already achieved high brightness LCDs of more than 1800 cd/m2, among which Baoyi Technology has many military LCDs above 2000 cd/m2.

In a typical industrial environment, operators are more willing to look at the display at an oblique angle rather than a positive angle.

Therefore, it is important that a picture is viewed from different angles (up, down, left, and right) without or with little distortion or color change of the picture. Especially the display settings on consumer applications don't work very well, because the pictures may not be visible or can't be seen diagonally.

Some techniques are used to improve the viewing of the LCD on bevels. Some film-based techniques typically achieve viewing angles of 80°, 60°, 80° left, and 80° right. These angles are sufficient for many applications, but some applications may require a larger perspective.

Coplanar Conversion Technology (IPS), Multi-Quadrant Vertical Alignment Technology (MVA) and Ultra-Precision Thin Film Transistor Technology (SFT) offer a variety of LCD manufacturers a popular choice. These patented technologies enable a greater viewing angle than the field of film technology.

For example, the SFT technology of NECLCD technology achieves 85 upper and lower left and right. The viewing angle allows the machine operator to view the LCD display from virtually any angle without significant image distortion or color change.

Industrial LCD display resolution

Size and resolution also play a role in overall readability. In general, 6.5, 8.4, 10.4, 12.1, and 15-inch LCDs in LCD mode are mostly used in industrial applications. These dimensions provide enough space for views, signal waveforms, or other graphical data without taking up too much space on the device.

The resolution requirements are mainly determined by display information or display data. In the past, VGA, SVGA, and XGA resolutions were the most popular.

However, more and more manufacturers are beginning to pay attention to the profits of large aspect ratio displays, such as WVGA and WXGA. The large aspect mode allows users to view longer information waveforms and more data on a single display. These displays can also be designed to incorporate touch keys on the display surface, allowing users to view data on large aspect displays or to switch between standard aspect ratio displays that incorporate touch screen functionality. This new advanced functionality is extremely helpful in simplifying the user interface.

Industrial LCD display sustainability

The ability to withstand temperature changes and vibrations is an important consideration in selecting displays for contemporary industrial applications. The display must be flexible enough to prevent the impact or collision of mechanical operators or peripheral equipment, and must be able to cope with various operating temperatures. Compared to CRT, LCD is more resistant to temperature changes, collisions and vibration.

Storage and operating temperatures are also the main variables in selecting an industrial device display. In general, the display is embedded in a closed container and is part of a large piece of equipment. In these cases, the temperature is affected by the heat generated by the closed container and the peripheral equipment.

Therefore, keeping in mind the actual storage and operating temperature requirements is very important when choosing a display. Although some measures have been taken to dissipate the heat generated, for example, in a closed container, choosing the display that best fits these environments is the most effective way to ensure storage and operating temperature requirements. Improvements in liquid crystal materials have also made it possible to expand the optimum temperature range of the LCD. At present, many LCDs have a temperature range of -10 to 70 °C.

Industrial LCD display availability

When choosing a display for use in a manufacturing environment, other features that need to be considered in comparison to more recessive features. For example, ensuring that downtime is minimized is critical. In order to achieve maximum usage, it is important to select the highest quality display and to have available spare parts for on-site repair rather than for external repair.

Industrial application displays also require a long life product life cycle. When the manufacturer no longer manufactures a mode, the new display should be backward compatible to fit the existing closed container without requiring a redesign of the entire system.

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