网页对话
live chat

 

On Technological Thresholds and Counter Solutions of Small-pixel-pitch LED

       Take a look at the technology development of the video display industry in 2014 and it could be found that the competition of traditional LED display is in full swing and the dilemma of being homogenized in the LED display industry is self-evident. Restriced by the industry attributes, LED display market turns out to be narrow and enterprise scale is hard to be expanded. However, the advent of the samll-pixel-pitch LED display not only extends the application scope of LED display but also brings the possibility of entering the civil market. Its emergence also seems to let the manufacturers discover the remedy for the development bottleneck as well as greatly improve manufacturers’ technological strength to dominate bigger market share.

       However, numerous manufacturers’ swarming into this market also causes vast chasm among the quality of different companies’ products. A lack of scientific and sound quality standard poses opportunities and challenges, as well as pros and cons , to all the manufacturers. Coming next is the analysis of technological thresholds and target market facing the small-pixel-pitch LED.

      The technological thresholds can be summarized as follows:

 

High gray scale under low brightness

 

Being reddish and uneven under low gray scale

 

Ghosting

 

Dim line at first scan line

        All these bottlenecks indicate that perfection does not come easy, and high-tech industry is no exception, whch also reminds Lxuon of a Chinese old saying: though the way ahead is long, I will search hgih and low, meaning the prospect is promising but the path is tortuous. Thanks to Luxon people’s perseverance and hard work, the solution’s finally been found:

Enhancing control system’s performance

        It goes without saying that control system is as critical to LED display as nervous system to human being. Like a sub-healthy human, an unproperly-working control system would cause such problems as ghosting, color cast and uneven gamut. Control system is a general term for receiving card, sending card and other optional devices with extra functions such as multi-function card and monitoring card. Therefore, high performance control system with brightness-chromacity calibration, seam calibration, 16-bit gray scale and 2880Hz refresh rate plays a tremendous role in solving display problems of small-pixel-pitch LED.

Selecting quality driving IC

       Quality driving IC is of equal importance in improving the display effect of small-pixel-pitch LED. As is known to all, normal LED display requires driving IC to feature lowering ghosting and constant current output, not to mention small-pixel-pitch LED. In addition, other features like PWM, supporting 10-16 bit gray scale control, and 10000-16000Hz high refresh rate are also needed for small-pixel-pitch LED to gain high gray scale under low brightness.

 Scientific PCB thermal design

       The uneven layout of module components can cause uneven thermal distribution to the whole PCB board, which would lead to color cast; therefore, a scientific thermal design can help enhance the display effect of small-pixel-pitch LED.

       All in all, it can be concluded that It calls for engineers’ sustainable improvement to overcome the technical barriers to achieve exquisite display effect of small-pixel-pitch LED. To enhance control system performance, to select quality driving ICs and to make scientific PCB thermal design are all recommended solutions