About iPhone X and iPhone X Display
The iPhone X (Roman numeral "X" pronounced "ten")is a smartphone designed, developed, marketed, produced, and sold by Apple Inc. The 11th generation of the iPhone, it was available to pre-order on October 27, 2017, and was released on November 3, 2017.
The iPhone X used a glass and stainless-steel form factor and "bezel-less" design, shrinking the bezels while not having a "chin", unlike many Android phones. It was the first iPhone to use an OLED screen. The home button's fingerprint sensor was replaced with a new type of authentication called Face ID, which used sensors to scan the user's face to unlock the device. This face-recognition capability also enabled emojis to be animated following the user's expression (Animoji). With a bezel-less design, iPhone user interaction changed significantly, using gestures to navigate the operating system rather than the home button used in all previous iPhones.
IPHONE X Display
The iPhone X has a 5.85 inch (marketed as 5.8 inch) OLED color-accurate screen that supports DCI-P3 wide color gamut, sRGB, and high dynamic range and has a contrast ratio of 1,000,000:1.
The Super Retina display has the True Tone technology found on the iPad Pro, which uses ambient light sensors to adapt the display's white balance to the surrounding ambient light.
Although the iPhone X does not feature the same "ProMotion" technology used in the displays of the second-generation iPad Pro, where the display delivers a refresh rate of 120 Hz, it does sample touch input at 120 Hz. OLED screen technology has a known negative trend of "burn-in" effects, in which particular elements consistently on the screen for long periods of time leave a faint trace even after new images appear. Apple acknowledged that its OLED screens were not excluded from this issue, writing in a support document that "This is also expected behavior".
Greg Joswiak, Apple's vice president of product marketing, told Tom's Guide that the OLED panels Apple used in the iPhone X had been engineered to avoid the "oversaturation" of colors that using OLED panels typically results in, having made color adjustments and "subpixel"-level refinements for crisp lines and round corners. For out-of-warranty servicing for damages not relating to manufacturing defects, Apple official screen repairs of iPhone X cost US$279, while other damage repairs cost US$549.