The share of market sales also varies from year to year. According to the research results of the large-screen display performance list, products of various display technologies account for the proportion of market sales amount.

The order from largest to smallest is: DLP rear projection splicing, engineering projection, LCD splicing, plasma splicing, and small-pitch LED display.

 Below we will analyze the characteristics of various product technologies one by one, and carry out a comprehensive comparison of technical parameters.

 The former overlord DLP rear-projection splicing wall has two major characteristics: the overall screen resolution is high, and at the same time, compared to the LCD splicing, the seams between the units are also relatively small.

However, after years of development, this technology still has many limitations of its own: during long-term use, the display unit's brightness attenuation is inconsistent, and the color drift is inconsistent.

Therefore, after using for a period of time, the entire display wall is easy to be blurred and difficult to adjust;

The second is that the light source technology is not satisfactory: the UHP light source has a short lifespan, and the brightness of the LED light source is not enough. In addition, the horizontal and vertical viewing angles of the display screen are not as good as the flat panel display;

The dynamic refresh rate and contrast are low, and the video display effect is not as good as LCD, PDP and LED;