Why there is noise when adjusting the screen brightness?
As the screen brightness adjusting is achieved by changing the screen size of the coil current. It is a normal physical phenomena the coil current changes in electricity eventually lead to the coil make voice. Because of the sensitivity of the human ear and different coil quality [...]

How to restore the dark screen to bright?
Lamps have already gone out if you confirm that the screen is brightest and still evident dark than before when used in AC power supply. You must replace the corresponding models of lamp.

Why LCD will become yellow or red?
Using LCD certain period of time, especially always adjust to the maximum brightness, screen aging itself and the lamp will be yellow. Cold boot screen is mainly red lamp aging, you can replace it.

The cost of High-resolution LCD screen is higher than the low-resolution LCD screen, but high-resolution notebook is not necessarily suitable for all types of users. If it is at the same price, you must be based on your individual application requirements as the sole judging criteria.

It may appear screen tearing problem when you use LCD Screen. Base on our repair experience, we summarized the following methods that can solve most of LCD screen tearing problems ( It’s best to exclude problems according the gradual process in practice).

Do you know how to replace a LCD screen? Once master it,  you will feel it is very easy. Now, I’d like to share its process:
Step1. Purchase a LCD screen which is compatible with your laptop, shut down the computer, remove the battery and unplug it.

Netbooks have slim and lightweight designs, their touchpads are often too small, unresponsive, and uncomfortable to use. Installing a touchscreen eliminates those frustrations and adds a whole new world of functionality. With the guidance, you’ll manage it by your finger.

Why my laptop screen becomes black? It is a very common question. Now, I’d like to summarize the reasons of the black screen and how to deal with it:

Of all the components in your notebook computer, the screen is the single most expensive part to replace. However, LCD screen is extremely delicate. Dust, pet hair, and dirt attach easily to the screen, interfering with image clarity. Scratches, punctures, dings, abrasions are very possible.

 
The laptop repair often comes with the screen issues. The laptop LCD screen is black, but an external monitor works fine on laptop. 
To identify what the problem of the LCD screen is, we often make a test first. Connecting the laptop to an external monitor, if it works fine, then we know the video card [...]