Los Angeles-based Q-Pixel has developed a microLED display technology that it claims delivers the world's highest resolution active matrix color display. Q-Pixel's displays deliver 6800 PPI (pixels per inch), surpassing current displays. The technology replaces three traditional sub-pixel LEDs with a single multicolor LED.
Q-Pixel has manufactured the display entirely using micro-LED pixels, a technology that is notoriously difficult to implement.
Unlike most advanced VR displays that use micro-organic LEDs (micro-OLEDs), Q-Pixel's displays are composed entirely of III-V compound micro-LED pixels. Synthesized from inorganic materials, III-V micro-LEDs offer significant advantages over OLEDs, including faster response times, higher brightness, longer lifetimes, and better energy efficiency. From a physics perspective, inorganic III-V micro-LEDs have long been considered an ideal display technology, but there has been no clear path to becoming commercially viable.
CEO and co-founder JC Chen said: “By delivering the world's highest resolution (6800 PPI) active matrix color display, Q-Pixel has achieved two major milestones. First, we have proven that it is possible to manufacture ultra-high resolution active displays based on micro-LED technology. Second, Q-Pixel has demonstrated that our TP-LED pixel technology can outperform more mature display technologies such as OLED and achieve world-record-breaking pixel density.”
The main challenges in commercializing micro-LED displays arise from the traditional approach of assembling full-color pixels using separate monochromatic red, green, and blue (RGB) LEDs. For high-resolution displays that require small (<50 μm) pixels, assembling, testing, and repairing millions of RGB micro-LED sub-pixels is a complex, labor-intensive, and expensive process. In addition, the physical space required for three RGB sub-pixels limits the pixel density of the display, creating an obstacle to achieving high-resolution displays. Q-Pixel overcomes both hurdles by replacing the three RGB sub-pixels with a separate, fully color-tunable pixel.
Q-Pixel's TP-LED technology is detailed in a recent Compound Semiconductor magazine article.
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