A phased array that comprises a predetermined number of emitter/receiver elements; said emitter/receiver elements being arranged on a array formed of stacked rows, wherein the emitter/receiver elements in each row of the array are distributed according to a pseudo-random pattern; and the heights of the rows vary according to a pseudo-random pattern.

A wavelength conversion module includes a substrate, a barrier wall structural layer, a plurality of wavelength conversion layers and a plurality of quantum dot particles. The substrate has a surface. The barrier wall structural layer is disposed on the surface and defines a plurality of recesses. Each of the wavelength conversion layers is located in one of the recesses. The quantum dot particles are disposed in the wavelength conversion layers. A backlight module having the wavelength conversion module and a manufacturing method of the wavelength conversion module are also provided.

A wavelength conversion module includes a substrate, a barrier wall structural layer, a plurality of wavelength conversion layers and a plurality of quantum dot particles. The substrate has a surface. The barrier wall structural layer is disposed on the surface and defines a plurality of recesses. Each of the wavelength conversion layers is located in one of the recesses. The quantum dot particles are disposed in the wavelength conversion layers. A backlight module having the wavelength conversion module and a manufacturing method of the wavelength conversion module are also provided.