Screen covered with green and blue pixels (visible on dark colors)

Hello,
I have this tablet since beginning of April, and since few days I've noticed the little dots on the top of the screen.
From far away it looks like dust behind the screen, but by having a closer look, it's like pixels that stay green and blue when the rest of the image is dark.It's very visible when I'm using the tablet with no lights around me. i've tried to restart the tablet, and even when It's loading with the SONY sign, I have that! what should I do ? Did people had that issue before ?
(BTW, The screen is also unresponsive when plugged to charge)

I encounter the same problem. I bought my Z2 tablet 16GB from the Singapore Sony Store. I got it for one month and the same pixel problem appeared. I send it in for servicing at the Singapore Sony care centre at 313 somerset outlet.. One week went by and nothing happened. The service was bad, no reply from the customer care or technician. They gave me a website so i can check the status of the servicing but all it shown on the page was pending.. one full week and still pending. I had to call them once and asked them what happened, the Sony personal over the line could only say they can check and get back to me. The next day i called again to check if any technician has even start and immediately right after that they called me to go down to collect. Turn out they are giving me a new tablet. And the screen protector was not refund to me as they said that the device was still in the service centre.. had to buy a new one for myself. Such a disappointment in the servicing.. and now the current one i am holding as the same freaking problem.. also i notice the corners of the screen has some yellowish hue.

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Screen covered with green and blue pixels (visible on dark colors)

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