Free features:
* 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 (grey/red/green/blue)
* Viewing angle tests (This is useless for OLED displays)
* Multi-touch test
* Display performance tests
* Repair burn in - scrolling black & white bars
* Display measures info: screen size, GPU type, dpi, density-independent pixel size, OpenGL 1.x info, pixel format
* Real world pictures for reference and comparison
* 4-color gradient test with orientation change correction (Android 2.2 and higher)

Pro features:
* No splash screen
* Full Google Cast support
* Repair burn in - noise (white, b&w, red, green, blue) => Only Android 2.2 and higher!
* Pixel format & dithering tests
* Built-in font styles test
* Manually DPI measurement
* Color charts
* Touch screen dead spot tester
* System Fonts tester
* DIP / PX calculator

Soft key hiding in ICS/HONEYCOMB/JELLYBEAN:
* Use the preferences menu option for this or simply long touch the display during a test is running.

Gestures:
* Slide left-right: change test image
* Slide up-down: change brightness
* Long touch: switch between full screen and normal screen (Android 3.0 and higher)
* Double tap: hide or show the test specific settings dialogue (if available)

When the soft keys are hidden it is not easy to advance to the next screen: First tap to make the buttons appear, then a quick swipe for the next screen before the buttons are hidden again.

Requirements: Android 4.1+

Home Page -

https://play.google.com/store/apps/details?id=com.gombosdev.displaytester&hl=en

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