Firstly, if your LCD display has small black locations it can be simply a dirt. In such a case you will need to clean the screen. It is better to use distilled drinking water (or tap water, at last resort) but not a solvent. Power down your laptop before cleaning. Employing a lint-free microfiber fabric is best, an old cloth can introduce dirt. Finally, dry the display with a dry fabric. Laptop Screen Repair
If small black locations did not disappear after cleaning or the places are white or colorized, it is quite possible that the screen has faulty pixels. Faulty pxs can be different obviously. According to a typical classification, they can be stuck, hot, and lifeless. And consequently, they require different approaches to fix. At times, stuck pxs may start working with time again. Sometimes such pixels can be re-energized by turning them on and off rapidly (you actually can try to use some pixels-fixing software tools).
You might find many different tips on the net how to deal with faulty pxs. A few of them are worth to try, others may damage the screen (for instance, using an excessive heat). In any case, it is better to try different approaches to fix these pixels (at least to be sure that the only one option is left). Unfortunately, if your screen has a lifeless or a partially lifeless pixels, typically there is nothing that you can do regarding it other than replacing your LCD display screen with a new plank.
LCD screens are more fragile than old CRTs and faulty pixels can be easily contributed by users if pressure is put after screen. Just as well as, the display may have scratches. Several people try CD scrape remover but since a rule it the genuine screen worse. The subject of fact, every FLAT SCREEN panel has a layer over the actual display, it’s this that is scratched. Unfortunately, it can not be fixed. If your screen has many scratches, looks too ugly, then the most radical solution would be to replace the display.
In case of dark screen, flicker, stripes, or other image problem, the first step should be to make certain that this is a screen problem, not other laptop’s part. Subsequently, it is necessary to check if other parts of laptop work. The easiest way is merely to hook up an external screen through video output. If perhaps picture is good it means the laptop display is non-functional or busted.
In case of dimmed screen or flicker it would be broken inverter or back-light bulb (that causes flicker). The back-light lamp is mounted inside the display screen. When the back-light light fails, you have to replace the full LCD display screen (it may be possible to replace only the lamp but very hard). All display parts are supplied in a single module that can be replaced.
If the screen is not repairable, a good cost-effective solution could be to replace the screen on your own. Are non-technical people capable to replace a laptop screen themselves? Unsurprisingly, yes. No doubt that most people are terrified to change their laptop screen first time. Yet replacing LCD screen is easy. It is merely a little bit more difficult than changing a light-bulb: removing 6th screws, pulling off a bezel, disconnecting the old screen, and the set up of the new display screen by following steps in reverse order. You may learn from some on the web illustrated guide how to replace LCD screen.