![]() Notably, such burn-in statistics can take the form of a high-resolution, multiple-channel image that consumes a considerable amount of storage space within the computing device in which the OLED display is included. To address this concern, burn-in statistics–which record historical usage information associated with a given OLED display–can be used to artificially adjust the operation of the OLED display to substantially restore visual uniformity throughout its operation. Organic light-emitting diode (OLED) displays–which are becoming a popular choice for computing device displays–can degrade in a non-uniform manner over their lifespans and lead to unwanted color/brightness artifacts. And the specific thing Apple wants to patent is an efficient method of storing the usage data needed to achieve this. Rather, it describes a method of compensating for it – artificially adjusting the brightness and colors of particular areas of the screen. The method Apple describes doesn’t prevent burn-in. ![]() The second challenge is the susceptibility of OLED screens to burn-in, and it is this problem Apple’s patent sets out to address. However, some smartwatches have addressed this by reverting to a relatively dim grayscale mode to display the time when you’re not actively using the watch, and Apple already has a low-power time display it switches to at night and when the watch runs low on battery. Depending on model and usage patterns, the Apple Watch can comfortably make it through anything from one very long day to several days – but that’s with the screen on for relatively short periods of time. This has been a much-requested feature from some, but it would pose two challenges … ![]() A patent application relating to the Apple Watch is leading some to speculate that the company may be working on a mode where the screen is always on.
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