FIG 1 (IMAGE) Compuscript Ltd Caption Figure 1. (a) The proposed 8-wavelength 4x4 LED array chip image, the colors of each dash line box represent the color of the LED unit. (b) The scanning electron microscope (SEM) image of the V-pit structure. (c) The vertical profile of the V-pit structure. (d) Layers of the red LED units (660 nm and 620 nm). (e) Layers of the GaN-based LED units (wavelengths from 570 nm to 450 nm). Credit OES Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.