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# Researchers develop bidirectional pixels for simultaneous light emission and reception
- URL: https://adjacent.media/signals/researchers-develop-bidirectional-pixels-for-simultaneous-light-emission-and-reception/
- Published: 2026-06-29T16:12:19.000Z
- Updated: 2026-06-29T16:12:19.000Z
- Description: Scientists have created pixels that can both emit and receive light simultaneously, eliminating the traditional tradeoff between display and sensor functions on a single surface.
- Author: Jonathan Greene
- Tags: #signal, theme-connected, hardware, display technology, optical sensors

Source: [The Register: Biting the hand that feeds](https://www.theregister.com/science/2026/06/28/boffins-build-a-better-pixel-capable-of-emitting-and-receiving-light/5263388?ref=adjacent.media)

Scientists have created pixels that can both emit and receive light simultaneously, eliminating the traditional tradeoff between display and sensor functions on a single surface. This advancement enables practical applications in AR devices, spatial computing, and interactive displays where real-time environmental sensing and image projection must occur in the same physical space without mechanical switching or dual-layer stacking. Today's AR glasses and autonomous systems require separate emitters and sensors, making them bulkier and more power-hungry. Combining these functions reduces component count and power consumption.