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Descriptions : DisplayTester makes it possible to test almost every aspect of your device's LCD / OLED screen. You can use Google Cast to test the display quality of your TV. It was developed to enable full screen tests also on devices with softkeys (hide the softkeys in ICS and higher, immersive mode in KitKat and higher).
Features :
+ Full Google Cast support
+ Repair burn-in - noise (white, b / w, red, green, blue)
+ Dead Pixel Test: Detect "dead pixels" by displaying a series of solid background color pages
+ Color tests: contrast, gradient (banding) and saturation tests
+ Gamma calibration tests (gray / red / green / blue)
+ Viewing angle tests (this is useless for OLED displays)
+ Wide gamut color test
+ Multi-touch test
+ Show performance tests
+ Repair burn-in - scroll black and white bars
+ Display measures information: screen size, GPU type, dpi, density-independent pixel size, OpenGL 1.x info, pixel format
+ Real world images for reference and comparison
+ 4-color progression test with correction of the change in orientation (Android 2.2 and higher)
+ Pixel format and dithering tests
+ Built-in font style test
+ Manual DPI measurement
+ Color cards
+ Dead center tester with touchscreen
+ Tester for system fonts
+ DIP / PX calculator
Required Android Versions : Jelly Bean [4.1–4.3.1] - KitKat [4.4–4.4.4] - Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]
