1. From the comparison of the display effect, the final effect of the display device is the core selection criterion, and there must be some differences in the display effect of different display technologies. Of course, this is very abstract. For details, please refer to the following instructions.

  2. From the perspective of brightness, there is no need to worry that the two splicing technologies are not enough. On the contrary, the small-pitch LED electronic screen known for its high brightness faces the problem of excessive brightness-small

One of the main marketing technical levels of pitch led electronic screens is "low brightness". In contrast, the LCD screen appears more appropriate in terms of brightness level, which is suitable for the application of large display screen. On the contrast index, small-pitch LEDs are excellent, but from the demand side, the contrast of the two technologies exceeds the needs of real display and the resolution limit of the human eye. This makes the contrast effect, the quality of the two technical pictures depends more on the optimization of the software, rather than the limit value on the hardware.

  3. In terms of resolution (PPI) index, although small-pitch LEDs have been making breakthroughs, they still cannot compete with LCD splicing screens. Currently, only LCD screens can achieve 2K popularization on 55-inch units. There is hope and can be popularized in the future. 4K only has LCD screens. For small-pitch LED electronic screens, higher pixel density means that the difficulty of stable design shows an increase in the geometric base. The pixel pitch decreases by 50%, and the backplane density has to be increased by 4 times, which is why the small pitch LED has broken through the bottleneck of 1.0, 0.8 and 0.6, but the root cause of only 3.0/2.5 products that are really widely used. In addition, it is worth reminding that the "actual value of LCD screen with pixel density advantage is not very clear." ”, because users rarely demand that high pixel density.

 4. This indicator of color range is generally not the most concerned direction for video wall products. Except for the application scenarios such as radio and television, the demand for color reproduction range has never been strict in the video wall market. From a comparative point of view, small-pitch LEDs are natural wide-color gamut products. Liquid crystal depends on what kind of light source is used.

 5. The color resolution index is the actual viewing experience of the color range on the contrast index, which represents the ability of the display screen to restore color in the end.

There are brightening methods, but on the whole, small-pitch LEDs must be the best technology with the dual advantages of color and contrast.

 6. The refresh rate is a key indicator to effectively suppress the flickering of the screen. The refresh rate of LED electronic screens is generally very high, and most of the liquid crystals are at the level of 60-120Hz, which has exceeded the resolution limit of the human eye.

 7. Point defects refer to the probability of dead pixels, bright spots, dark spots and color channels in display devices. In this regard, liquid crystal products can also be controlled to an excellent level. In contrast, effective control of point defects is the main technology of led electronic screens. One of the difficulties, especially as the pixel pitch shrinks, the control difficulty grows geometrically.

 8. In terms of cell thickness, liquid crystal has inherent advantages, and it has been continuously optimized and improved; although the small-pitch LED electronic screen has achieved super-broadness, there will be little room for improvement in the future. big. In terms of optical pollution and visual comfort, liquid crystal mainly refers to glare and high-frequency blue light, while small-pitch LED electronic screens are excessively bright and high-frequency blue light.

 9. Consumables and display core life indicators mainly refer to the lamp beads and backplane of the led electronic screen, the screen body and light source of the liquid crystal. The individual differences of lamp beads and the stability of the backplane determine that the lifespan differences between individual splices of such products are relatively significant, and individual units may need to be replaced soon.

 10. Engineering heat dissipation is an inevitable requirement for long-term stable operation of large-scale display systems. In this regard, liquid crystal has more significant advantages because of its low power consumption and low power density. Small-pitch LEDs

  Although it has the characteristics of low power density, the overall power consumption will still be higher. At the same time, the small-pitch LED electronic screen products with high heat dissipation requirements also mean that the system noise will be higher.