Display Tester is a valuable tool designed to help users quickly test their mobile devices and promptly identify any abnormal errors. The application offers a variety of tests tailored to different objectives, allowing users to choose according to their needs. Each test ensures the highest accuracy with just a few simple steps, making it highly reliable. The app will immediately assess and provide feedback on your device's color and contrast. Additionally, it will check the screen's viewing angle if it detects any anomalies. However, these tests are not compatible with OLED phone screens. For each test, the app will require you to perform gestures such as tapping, swiping, shaking, or moving objects on the screen.

Some devices encounter screen errors that are extremely annoying and difficult to detect, such as screen burn-in. This issue may cause displayed images to appear very faint, and occasionally the screen might go black. These errors can make the screen challenging to view and hinder phone usage. Fortunately, the application can help resolve this issue effectively by utilizing black and white bars. This feature will make the screen noticeably clearer, and the black streaks will gradually fade away. Upon initial use, the application will record all your device's parameters, including the serial number, model, activation time, CPU, and GPU. Furthermore, the app will provide detailed information about the screen's specifications, including resolution, refresh rate, and pixel density.