Sony Xperia 1 V is slated to adopt LTPO display technology for its OLED panel, featuring low-temperature polycrystalline oxide, enabling enhanced energy conservation. Additionally, LTPO technology boasts adaptive refresh rate capabilities, further optimizing battery life.

LTPO display technology has gained considerable traction in recent years, notably seen in flagship products like iPhone 12 Pro and 14 Pro. However, Sony has yet to integrate this technology into any of its products.
Even on the Xperia 1 IV, Sony continues to utilize OLED display technology with 4K resolution and a fixed 120Hz refresh rate. It's highly probable that Xperia 1 V will be Sony's inaugural device featuring LTPO display technology, offering adaptive refresh rate capabilities for enhanced energy efficiency.

However, according to a source (SumahoDigest on Weibo), the LTPO display on Xperia 1 V may not support adaptive refresh rates at 4K resolution. This seems somewhat counterintuitive as 4K resolution is locked at a fixed refresh rate of 120Hz.

However, operating at FHD resolution, the screen of Sony Xperia 1 V can leverage its full functionality, thereby reducing energy consumption.