HXTECH common cathode driving LED display solution
The pixel pitch of LED display is getting smaller than ever before. High pixel density require a high power consumption and produce a lot of heat. Traditional energy saving wont that help for the fine pitch LED display. Heat will cause color shift and moreover shorten the life time of LED diodes.
HXTECH engineer design a new solution which is called common cathode solution. We redesign our PCB layout based on the newest driving IC.
The common cathode diving method:
The traditional common anode driving method:
Following is a comparison diagram of surface temperature between common cathode design and common Anode design
The LED display surface temperature reduced 12.4 degree.In this case it can help a lot for a color uniformity and a long LED life time.