Change display physical resolution - Android Q&A, Help & Troubleshooting

Hello,
I'm new there, so excuse me in advance if I mistake or something isn't right.
I've got a Samsung Galaxy J7 2016 (J710F) with broken screen. Ordered a new one from Ali. The seller description characteristics of the screen is AMOLED 1080x1920 pixels (and I believe it really is). But original J7 screen is 720x1280. Replaced screen is good, but looks slight blurry and not sharp.
I suppose the system interpolates image from 720x1280 to physical 1080x1920, so image doesn't look perfect.
I tried to change resolution and density with ADB:
Code:
$ wm size-density
Physical size: 720x1280
Override size: 1080x1920
Physical density: 320
Override density: 480
Then I've rooted the phone and changed the build.prop:
Code:
ro.sf.lcd_density=480
ro.sf.lcd_width=1080
ro.sf.lcd_height=1920
I'm not sure about ro.sf.lcd_width and ro.sf.lcd_height, because there were no such lines, I added them.
After that ADB says:
Code:
$ wm size-density
Physical size: 720x1280
Override size: 1080x1920
Physical density: 480
$ dumpsys display | grep mBaseDisplayInfo
mBaseDisplayInfo=DisplayInfo{"Built-in Screen", uniqueId "local:0", app 720 x 1280, real 720 x 1280, largest app 720 x 1280, smallest app 720 x 1280, mode 1, defaultMode 1, modes [{id=1, width=720, height=1280, fps=60.000004}], colorMode -22, supportedColorModes [-22], hdrCapabilities [email protected], rotation 0, density 480 (268.941 x 268.694) dpi, layerStack 0, appVsyncOff 1000000, presDeadline 16666666, type BUILT_IN, state OFF, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, removeMode 0}
The physical resolution remains the same, and the images on the screen are still not sharp.
Is there some right way to change physical resolution to fit the new display size? Or it is hardware coded and all efforts are useless?
I will be glad to any hints and advices.

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Tom Gun said:
Is there some right way to change physical resolution to fit the new display size? Or it is hardware coded and all efforts are useless?
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Hello and good afternoon, @Tom Gun
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