Research Progress of Red Semiconductor Laser Diodes for Laser Display

Laser display becomes a critical technique for the development of next-generation display technology because of its large color gamut, long lifetime, and environment-friendly attributes. Red semiconductor laser diodes form the core light sources of laser displays. With the rapid development of the laser display industry, the demand for high-power red semiconductor laser diodes also increases. Currently, industrial research is focused on increasing the output power and improving the beam quality of the device. Herein, we introduce the basic principles and technical difficulties associated with the high-power red semiconductor laser diodes. Further, we summarize the research status and progress with respect to the usage of red semiconductor laser diodes for laser display at home and abroad. We also analyze the future development directions and prospects for the application of red semiconductor laser diodes.