White paper 2 release: Dynamic Pixel Tuning for Large Area Displays
A previous white paper called Dynamic Pixel Tuning: Game Changing Technology described technology developed by Porotech that can eliminate the RGB sub-pixel arrangement for displays and instead allow a single pixel to be designated any color in the visible spectrum simply by changing the drive characteristics. They call this invention DynamicPixelTuning® (DPT®).
The paper describes how Porotech first developed their PoroGaN material structure that creates an interface layer between the GaN epi layer and the substrate. This relieves stress allowing the fabrication of red GaN micro/mini-LEDs. This is the first major accomplishment. The second is the new drive scheme that allows the pixel to change the emission wavelength based on the drive current waveform, thus enabling Dynamic Pixel Tuning.
In this paper, we will describe how traditional microLEDs are fabricated into larger-sized displays and how DPT technology can change the manufacturing process in profound ways while also offering new display level options – all potentially leading to lower-cost and high yield solutions.