display brightness problem : after replacing work

Hi,

I just replaced my display, but it's not work perfectly.

everything except for brightness is work perfectly (e.g. touch..)

but 80% of display is very dark, but 20% of display is good.

I changed the brigthness 100%, there's few change in my display but it changes.

I contact the seller, but he said that it's intall problem so take it to the professional shop.

There's not professional shop near my house.

how can i fix this problem?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

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crwdns2944067:02crwdne2944067:0:

@m5d8b3tl6bq8qfi explain this "80% of display is very dark, but 20% of display is good." a bit more. Does it mean that part of your screen is dark while the rest is not?

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

yes. It is dark except for top left.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

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