On iPad spec sheets you’ll find two display names that sound similar but describe very different technologies: Liquid Retina and Ultra Retina XDR.
Liquid Retina: Apple’s LCD panel
“Liquid Retina” is Apple’s marketing name for its high pixel-density LCD panels, used on the iPad, iPad Air, and iPad mini. It offers solid color accuracy, True Tone support (automatic white balance adjustment) and P3 wide color, with a fixed 60Hz refresh rate. It’s a mature, reliable technology, but it shares LCD’s typical limitation: uniform backlighting, meaning slightly less deep blacks than an OLED panel.
Ultra Retina XDR: the OLED panel exclusive to the Pro
“Ultra Retina XDR” is instead Apple’s name for the OLED panel found exclusively on the iPad Pro. Unlike LCD, each pixel on an OLED panel lights up independently, which achieves near-absolute blacks (unlit pixels emit no light at all) and much higher contrast. Ultra Retina XDR also reaches higher peak brightness, supports HDR with visible detail in both the darkest and brightest parts of an image, and includes ProMotion technology with refresh rates up to 120Hz.
The practical difference
For browsing, reading, and normal streaming, the perceived difference between the two panels is less pronounced than the spec sheet suggests. It becomes much more obvious when watching HDR content, working in tricky lighting conditions, or drawing with the Apple Pencil, where Ultra Retina XDR’s higher contrast and 120Hz refresh rate are genuinely noticeable.