Xiaomi has fully transitioned its flagship smartphone lineup to TCL CSOT displays, with the Xiaomi 17 Ultra and 17 Ultra Leica Edition being the latest to feature the company’s advanced Real RGB panel technology. TCL CSOT now serves as the exclusive display supplier for the entire Xiaomi 17 series, including the 17, 17 Pro, and 17 Pro Max models.
The Xiaomi 17 Ultra features a 6.9-inch 2K flat OLED panel. The display uses TCL CSOT’s M10 light-emitting material and supports a 1-120Hz LTPO adaptive refresh rate. It delivers up to 3500 nits of peak brightness, offering high visibility in direct sunlight and improved HDR performance. TCL CSOT designed this display solution specifically to match Xiaomi’s hardware needs for clarity, color accuracy, and power efficiency.
Unlike conventional OLED panels that rely on a PenTile sub-pixel arrangement, TCL CSOT’s Real RGB layout assigns a dedicated red, green, and blue sub-pixel to every pixel. This approach eliminates sub-pixel sharing and color fringing. It also improves text sharpness and overall image clarity, making the panel appear as sharp as a traditional 2K display without the visual compromises found in most OLEDs.
According to TCL Central, the new display reaches a luminous efficiency of 82.1 cd/A, allowing it to maintain high brightness levels with lower power consumption. The use of Real RGB combined with a power-efficient LTPO backplane results in up to 26% energy savings compared to previous display generations.
The Real RGB display was first introduced on the Xiaomi 17 Pro and 17 Pro Max earlier this year. The 17 Pro Max also debuted a 2.9-inch rear AMOLED screen, while the 17 Ultra removes the secondary display to focus on camera performance. Xiaomi optimized the Ultra’s display to support LOFIC HDR, allowing it to accurately reproduce the dynamic range captured by the device’s 1-inch sensor.
Xiaomi and TCL CSOT have expanded their cooperation since establishing a strategic partnership in 2017. The companies set up a display innovation laboratory in 2021, followed by a Phase II expansion in July 2025. This collaboration allows Xiaomi to request precise hardware tuning for its flagship models, replacing reliance on off-the-shelf components from other suppliers.
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