Getting rid of Screen Door Effect in Micro-LED Displays
2 patents in this list
Updated: April 30, 2024
The screen door effect, characterized by visible lines and gaps that disrupt image clarity, poses a significant challenge in Micro-LED displays. Addressing this issue is crucial for enhancing visual quality and user experience.
This article delves into innovative strategies and technological solutions aimed at minimizing or eliminating the screen door effect in Micro-LED displays. By exploring developments in pixel density, layout optimization, and diffuser technologies, we elucidate how current research is paving the way for clearer and more immersive display experiences.
1. Innovative Micro-LED Display Panel Design to Eliminate Screen Door Effect
SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., 2018
Micro LED display panel with improved resolution, reduced screen door effect, and lower cost compared to conventional micro LED displays. The panel has an array of sub-pixel areas on the substrate, each filled with uniformly distributed micro LEDs. This allows higher resolution by packing more LEDs in each sub-pixel without increasing inter-pixel gaps. By optimizing the number of LEDs per sub-pixel, it balances resolution, screen door effect, and cost compared to using a single large LED per sub-pixel. The micro LEDs are transferred using a process like micro transfer printing.
2. Diffusing Elements in Segmented LED Arrays to Minimize Screen Door Effect
Lumileds LLC, 2022
Segmented LED arrays with diffusing elements to improve uniformity and reduce patterns when using secondary optics. The arrays have LED segments separated by walls. Diffuser material is placed directly over the LEDs or wavelength converter to scatter light before it reaches secondary optics like lenses. This avoids patterns when using focus techniques. The diffuser can be columns, domes, or a continuous layer over multiple LEDs.
