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What to pay attention to when buying LCD bar screens

Release time: 2019-11-27 Views: 264

"What to pay attention to when buying an LCD bar screen", today Detian Technology came to talk about this issue with everyone.
In recent years, the LCD bar screen industry has developed rapidly, and LCD bar screen manufacturers have sprung up. In the face of LCD bar screens produced by many manufacturers in the market, how can business users choose? In fact, we can click A few conditions to choose an LCD bar screen will avoid unnecessary losses.

1. Pay attention to the box design of the LCD bar screen

The design of the cabinet is also very important for the LCD bar screen. On the one hand, it is a circuit protection function, on the other hand, it is a security function, and at the same time it is dustproof and waterproof. But what is more important is whether the thermal circuit system of ventilation is good. With the increase of the startup time and the increase of the external temperature, the thermal drift of the components will also increase, which will lead to poor image quality.

2. Pay attention to the brand and quality of semiconductor devices such as LEDs and ICs

Since LEDs and ICs are semiconductor devices, they are demanding about the use conditions of the environment, preferably at about 25 ° C, and their working mechanism is the best. But in fact, an outdoor bar screen will be applied in different temperature environments. It may be above 60 ℃ in summer and below -20 ℃ in winter.

3. Pay attention to the power quality of the LCD bar screen

At the same time, the power supply is also very important. Because the power supply has different operating stability, output voltage value, and load capacity under different temperature conditions, because it is responsible for logistics support, its support capability directly affects The quality of the bar screen.

4. Note the resolution of the LCD bar screen

When you buy an LCD screen, the first thing you pay attention to is resolution, because everyone knows that the higher the resolution, the clearer and more delicate the display effect.

5. Pay attention to the LCD panel and double speed technology

The liquid crystal panel can largely determine the brightness, contrast, color, and viewing angle of the liquid crystal display. The development speed of the liquid crystal panel is very fast. The liquid crystal panel part is quite closely related to the liquid crystal display. Its output, pros and cons, and market environment are all related to the quality, price, and market direction of the LCD monitor itself, because about 80% of the cost of an LCD monitor is concentrated on the panel. Therefore, the LCD panel is also one of the important points to pay attention to when buying an LCD display. Double speed reaches 100HZ (50HZ in PAL system) and quadruple speed reaches 200HZ, which means that image processing is faster and the picture is smooth, but the human eye is 24HZ, so don't pursue this parameter too much.

6. Pay attention to the backlight of the LCD bar screen

Because the LCD screen does not emit light by itself, if you want to present an image on the LCD screen, you must illuminate the screen. This is the role of the backlight. The LCD screen uses a cold light source to emit light.

7. Pay attention to the response speed of the LCD bar screen

In the case of Hao seconds, the national standard is less than or equal to 20 Hao seconds. The current product is 6 Hao seconds or 4 Hao seconds. The smaller the number, the better.
The above is the answer made by Detian Technology on "What to pay attention to when buying LCD bar screen".


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