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Technical Information

If you are replacing the LCD display, LCD screen, LCD panel or the LCD inverter in your laptop, you need to first determine the LCD display, LCD screen, LCD panel or LCD inverter that is currently installed.

Installation instructions for installing your LCD inverter are as follows:

LCD Inverter Installation Instructions

Installation instructions for installing your LCD panel, LCD display, LCD screen and LCD monitor are as follows:

LCD Panel Instructions

Additional Technical Information:

What is LCD screen resolution? And, what are the different LCD screen resolutions for laptop and tablet PC computers?

Laptop and tablet PC computers come in many different resolutions. Resolution is defined as the number of pixels or small dots that make up an LCD screen. The pixel is the smallest unit that makes up an image. Most screens sold today are TFT active matrix LCD screens. TFT active matrix is a technology in which each pixel has a transistor attached to it to control the backlight shining through it. Each pixel is made up of 3 sub-pixels (red, green and blue) with each having its own transistor. Each of these pixels turns on and off and filters light through colored sub-pixels, which results in an image. The more pixels or higher the resolution a screen is, the crisper the image. In addition, higher resolution screens allow more of an image to be viewable.

The following table shows the LCD screen resolutions available in laptops and tablet PCs.

 

As can be seen in the table above, LCD screens are considered either standard-aspect or wide-aspect. Wide-aspect ratio screens, which have become quite popular recently, are LCD screens with a resolution aspect ratio greater than 1.33x (number of horizontal pixels / number of vertical pixels).

What is the relationship between size and resolution?
Basically, the larger the LCD screen, the higher the potential resolution. LCD screens are stated at their maximum resolution, which may be adjusted downwards should you need to. Each LCD screen size may come in different maximum resolutions.

See the table below for screen size and potential resolution combinations.

Notes:
(a) wide-aspect ratio LCD screen.
(b) standard-aspect ratio LCD screen.

Do I need a new laptop LCD screen if I have lines on my screen?
It is possible that you need a new laptop LCD screen. The presence of lines could indicate a problem with the screen, the video cable or the video card.

Are some laptop LCD screens compatible with other LCD screens?
Yes. Laptop LCD screens may be compatible with other laptop LCD screens. Moreover, laptop makers like Dell, HP Compaq, IBM, Toshiba and Sony may source more than one LCD screen (as distinguished by the LCD screen's part number) even from different brand LCD screen manufacturers to install in the same laptop model. There are many variables to take into consideration like various physical constraints, electronic signaling characteristics and power issues.

Do I need a new laptop LCD screen if my LCD screen is dim?
You may or may not need a new LCD screen if the LCD screen is dim. If your LCD screen is dim it may be as a result of either 1) a faulty backlight or 2) a faulty inverter. The backlight is basically the light bulb in the laptop LCD screen which, as one would suspect, has an average useful life. The inverter, though, is a separate piece from the LCD screen. The inverter essentially 1) takes the DC power, which the laptop runs off of, and converts it into AC power and 2) steps-up the voltage to light up the cold cathode fluorescent backlight.

We have found that when a laptop LCD screen is dim, the majority of the time it is a result of a faulty inverter (especially for HP laptop components). Unfortunately, the best way to determine which is the cause of the dim screen is through process of elimination by trying either a new LCD screen or a new inverter and seeing which solves the problem. We highly recommend you purchase an inverter first as inverters are less expensive than LCD screens.