Facing the increasingly fierce competition in the market of commercial LCD display and the constant improvement of user demand, the subdivision of commercial displays has become more clear and professional, and professional solutions for commercial displays have been launched for fields such as graphics, design, printing and publishing.
Commercial displays have the function of intuitively reflecting image quality. Moreover, with the selection of full 1920*1080 resolution for digital sigange displays in the broadcasting and television field, LCD displays are the preferred choice. The resolution of professional displays is automatically adjusted according to the display output (can support both horizontal and vertical orientations); its high reliability and high-definition display ability will ensure that HD video and signal are displayed in front of viewers in a complete manner after being edited and recorded.
Conversely, ordinary display devices only support several commonly used TV resolutions specified in the manual. As the resolution of civil TV signals is only a few kinds, the LCD of TV only performs the effect processing based on several commonly used resolutions by civil users. Special resolutions may cause screen distortion.
Although both commercial and civil displays use TFT LCD panels, the differences between them are mainly manifested in the size of liquid crystal molecules, imaging processing and color, brightness, contrast, visible angle and other aspects. Here are some examples from Carry LCD company.
The liquid crystal molecules composing ordinary LCD panels are larger than those of commercial display panels, because the viewing distance of commercial displays is generally within 1 meter, and the most important aspect is to show details, so the liquid crystal molecules composing them need to be smaller, of course, raising the price of such panels.
Conversely, ordinary LCD displays are mainly used to display the whole picture, with less demanding requirements for small parts, and the use of larger molecule liquid crystal can reduce costs.
Commercial display products usually need to run continuously for 24 hours to meet the needs of displaying various information, and the usage environment is much worse than that of civil display devices, which puts forward higher requirements for product performance.
Compared with ordinary display devices, in terms of design, the commercial display has greater current, power consumption, temperature, anti-electromagnetic interference, anti-electrostatic interference capacity and margin, as well as average trouble-free use time. Meanwhile, commercial displays must use fully shielded metal casing to ensure electromagnetic compatibility and interference performance. In terms of component selection, the components used in commercial displays should have higher withstand voltage, current, temperature, humidity and other special characteristics than those used in TV sets.
In addition, the requirements for installation, debugging, especially component and whole machine aging technology are also higher for commercial displays. The aging process of ordinary display devices usually lasts for about 8 hours at room temperature on the assembly lines, while the aging process of commercial displays needs to last for over 24 hours in high-temperature, high-humidity closed environments to ensure the stability of the entire machine.
Due to connection requirements, commercial displays generally use industrial ports, such as RGB BNC color difference interfaces with self-locking mechanisms and professional DVI-D video interfaces, etc.
In addition, commercial displays can adopt S232 serial port control, with more than 200 open control commands, adapting to various industrial environments. Convenience is provided for using multiple displays. All the display devices can be controlled without a remote control, meeting various industrial requirements such as auxiliary, timing start-up and delayed start, self-inspection, etc.
Of course, many ordinary display devices are also equipped with RS-232 control ports, but their use is mainly for controlling lights and cannot achieve industrial control.