In 2022, smartphone screens ushered in the new LTPO 2.0 technology, and also set off a discussion about the true and false LTPO. Leaving aside LTPO technology, how to monitor the current refresh rate of mobile phone screens is also a "technical activity", and learning this can be compared between mobile phones.
The biggest advantage of LTPO 2.0 technology is to intelligently dynamically adjust the screen refresh rate according to the current display content to minimize the energy of the screen
For Android phones, monitoring the screen refresh rate does not require the installation of a third-party APP, the system is natively supported, but we need to find it and activate it. Taking the OPPO Reno 7 Pro mobile phone as an example, the specific operation process is to first enter the "Set information about the phone version", and click the system version number 7 times in a row to activate the developer mode.
Next, go back to "Setting System Settings", where you can find the "Developer Options" that were previously hidden.
Go to the developer options, turn on "Show Refresh Rate" in the debugging function module, and you can display the floating green refresh rate number in the upper left corner of the screen.
The easiest way to test whether the dynamic adjustment of your phone's refresh rate is smart is through an APP that brings together text, pictures, and video elements, such as Weibo. OPPO Reno 7 Pro screen does not support LTPO, open Weibo will be displayed at a 90Hz refresh rate, when a long time after displaying a static picture (about 5 seconds), the refresh rate will drop to 60Hz, the power saving effect is general.
About LTPO 2.0 science online search a lot, we just need to know that the second generation of LTPO such as one plus 10 Pro (including OPPO Find X5 Pro) is the real 2.0. Other competitors that focus on the so-called LTPO 2.0 almost all use "scene recognition", that is, switching between the frame rates of the specified several gears according to the currently running APP, and the APP needs to be deeply optimized and adapted to the refresh rate flexibly. The LTPO 2.0 of the OnePlus 10 Pro implements "content frame-by-frame recognition".
In simple terms, the "content frame-by-frame recognition" of the OnePlus 10 Pro does not rely on the adaptation of third-party APP, but on the content currently displayed on the mobile phone screen is identified frame by frame, and the most suitable frame rate is quickly matched in milliseconds.
Whether it is displaying the desktop, entering the settings, brushing Weibo, chatting About WeChat or watching videos, as long as the current screen is stationary, you can instantly switch to the most power-saving 1Hz refresh state. It should be noted that the minimum refresh rate will be affected by the brightness of the screen, the measured only to adjust to more than 90% of the brightness can be reduced to 1Hz, below this brightness the minimum can only be reduced to 10Hz, if the screen brightness is too low, it will always be displayed at 120Hz (or manually set 60Hz).
Take watching the video of station B as an example, only the finger swipe screen will instantly become the smoothest 120Hz, the screen will drop to 30Hz when the video starts to play, if the bullet screen is turned on, it will be increased to 60Hz, the process of changing the frame is all based on the current display of the content changes, very intelligent.