The iPad screen is blinking and changing the screen from black into apple screen

In order to see if it is a temporary glitch, put it on charge for at least half an hour, then, keeping it plugged in, try a "forced" restart of your unidentified iPad model, using these instructions:

• On an iPad with a Home button: Press and hold the power button and the Home button at the same time. When the Apple logo appears, release both buttons.
• On other iPad models: In rapid sequence, press and quickly release the volume up button, press and quickly release the volume down button, then press and hold the power button. Only when the Apple logo appears (it might take 10-20 seconds), release that button (ignore all other screens that might appear, the one with the "slider" to turn the device off included).

If the issue persists, it could be a hardware (battery? digitizer? screen? other internal component?) problem, but we, just users like you cannot diagnose that issue remotely, sorry.

I suggest that you contact Apple Support, using this link:--> Contact Apple for support and service or, even better, make an appointment (*) and have your device inspected at an Apple Store or AASP (Apple Authorized Service Provider) among this list:--> https://locate.apple.com/choose-country-region . After checking it out, they'll give you all the available options.

Regards

Giulio

(*) You can do it:

• Online:--> Genius Bar Reservation and Apple Support Options - Apple;
• Contacting a local Apple Store or AASP among the list provided above;
• Using the "Apple Store" app, available and downloadable from AppStore.