Discoloration of Pixels on LCD Under a Small Scratch

[pwx]

I noticed that there is a small collection of discolored pixels (a small dot about 5 pixels across) which is comprised of all colors, but they appear to change colors from different angles. Also I can feel with my fingernail that there is a small indentation right above this spot. I'm not sure if this discoloration if caused by the scratch due to the diffraction of light, or if the pixels are stuck. I assume this is caused by the scratch since stuck pixels don't change color from different viewing angles.

There is also another spot (separate from the one above) where there is a small horizontal black line also about 5 pixels across which is visible from only a short range of angles. Whether or not it's visible depends only on the vertical angle, since if I look from above or below, the spot disappears; there is only a short range between where the spot is visible briefly. Any advice in explaining the causes of these defects, and whether or not there is a solution to fix them is appreciated.

 

[Shaun o]

At a guess in all honesty the colored pixels can be due to to much excess pressure applied to part of the Lcd screen matrix Pwx.

Or where a scratch has pushed the liquid crystal out of each of the pixels of the lcd matrix.
That would cause fixed or random colors of individual pixels depending on what color is asked to be displayed over the full Lcd matrix Pwx.

Try an all Black screen color for the full display, then red, green and blue primary colors.
See if each pixel hold it`s color.

If so it tells you the pixels are dead.

 

[pwx]

I tried looking at the screen with different colors, but the pixels seemed to change with viewing angle only when the screen was white; with all other colors the pixels did not change color from different angles, they just were brighter or dimmer. Images of this are posted below (I tried my best I could to take good quality photos of the pixels, since all I has was an iphone camera)

https://postimg.org/gallery/zx58696u/ (3 images with a white screen, from left, front, and right / 2 images with a green screen from left and front / 1 image with a red screen)

I also took photos of the black horizontal line which only appears with a small range of angles (it's very faint in these images. but it's more noticeable in person). I still am not sure what is causing this.

https://postimg.org/gallery/1n5qerolg/

I tried the method for fixing stuck pixels by applying light pressure to see if that helps, and i noticed something strange. Around the area of the collection of discolored pixels (not the horizontal black line), the white smudge created by pressure appears to disappear in a "pixelated" manner with all kinds of colors.

https://postimg.org/gallery/15x261e6e/

When I tried this in other sections of the screen, the white smudge disappeared smoothly, without leaving behind many colored pixels.

https://postimg.org/gallery/3fids3j58/

I tried to collect as much information as I can, but I still cannot be sure what all of these defects are specifically. I am fairly positive that the discoloration of the pixels are caused by the scratch from the diffraction of white light into its RGB components, since the pixels don't change color with angle when the screen is just one color.