As we all know, Laptop and desktop computers come in many different resolutions.various computer display standards or display modes have been used in the history of the personal computer. They are often a combination of display resolution (specified as the width and height in pixels), color depth (measured in bits), and refresh rate (expressed in hertz).

Display 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 desktop computer.

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.

Can I upgrade the size or resolution of my laptop LCD screen?

Screen size cannot be upgraded. Your laptop resolution may be upgraded sometimes depending on the type of video card contained in your laptop and if there exists a compatible LCD screen of a higher resolution. We generally discourage against upgrading resolutions as it is not easy to determine a compatible LCD screen between resolutions.

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.

Screen tearing really is a sticky business. We share our experience in solving screen tearing problems, which is summarized base on our repair experience. The following methods that can solve most of LCD screen tearing problems ( It’s best to exclude problems according the gradual process in practice.)

First: Check the connection between the LCD display and graphics is loose. It is the most common phenomenon that apppear clutter waves.

Second: Check Graphic card is overclocked. If the Graphic card is overclocked to use, they often turn up irregular and discontinuous stripes. Then ,you should appropriately reduce overclocking range. First of all is to reduce the frequency memory.

Third: Check the quality of Graphic card. If Screen Tearing comes out after you have replaced Graphic card and practised the first and second step, you should check the Graphic card of anti-electromagnetic interference and the quality of electromagnetic shielding are qualified. Put some of the components that may result in electromagnetic interference away from the Graphics card when you installing (such as hard disk), then look at whether Screen Tearing is disappear. You should replace the Graphics card or doing home-made shielding if the Graphics card’s electromagnetic shielding function is ineligible.

Fourth: Check the display resolution or refresh rate set is too high. LCD resolution is generally lower than CRT monitors, if it exceeds the manufacturer’s recommended best resolution, there may present Screen Tearing phenomenon to you .

Fifth: Check whether have installed incompatible graphics card driver. Such cases are generally easily overlooked for the pace of the graphics card driver update is increasing (in particular, NVIDIA graphics card). Some users always install the latest version of the driver. In fact, some drivers are either the latest beta version, or specific for graphics card or a game-optimized version,sometimes using such drivers may lead to the emergence of Screen Tearing. Therefore, it is recommended you to use the graphics card drivers manufacturers provide.

Sixth: If you still can not solve the problem after having used five methods above, there may be the quality problems of displays. Please replace the other display.

About Screen tearing
Screen tearing is a phenomenon in video where a newly rendered frame overlaps a previously rendered frame, creating a torn look as edges of objects (such as a wall or a tree) fail to line up. This occurs when the video card or the software using it begins updating the actively-displayed memory in a manner that is out of sync with the monitor’s refresh rate.

Tearing can occur with most common display technologies and video cards, and is most frequently seen on systems where horizontally-moving visuals are commonly found, such as in slow camera pans in a movie, or classic side-scrolling video games. The material being shown may also exhibit vertical stretching or shrinking, or repeated parts of images, during vertical motion, depending on the nature of the video.

Taking apart an HP Pavilion DV2000 is not an easy thing and if you plan to use the laptop again, it is important you know what you are doing or you have a large appetite for risk. If the above doesn’t describe you, consider taking the HP in for professional repair or upgrade. Otherwise, follow the steps below to disassemble the HP Pavilion DV2000 LCD screen.

This guide is mainly about  how to remove and replace a damaged LCD screen in a HP Pavilion dv2000 notebook. This guide should work for all models in Pavilion dv2000 line. By the way, this HP Pavilion dv2000 is like a small copy of HP Pavilion dv6000 notebook and all disassembly steps will be very similar.

Before start, please turn off the laptop, unplug the power adapter and remove the battery.

STEP 1.

The LCD screen is mounted between the display cover and bezel. The screen bezel is secured to the display cover by six screws hidden under six screw seals. Please circled these screw seals.

Remove all seals with a sharp object and after that remove all screws found under the seals.

STEP 2.

Start separating the screen bezel from the display cover on one of the top corners.

Continue separating the screen bezel.

Remove the screen bezel.

STEP 3.

The inverter board works as a power supply for the backlight lamp hidden inside the LCD screen. In most notebooks the inverter board is mounted below the LCD screen. In my guide I will not be removing the inverter board and because of that I will unplug only one cable from the right side.

STEP 4.

Remove four screws securing the display hinges to the cover.

STEP 5.

Carefully separate the display assembly from the cover and place the LCD face down on the keyboard.

Now you can access the LCD cable (video cable) connector. The LCD cable connects the screen to the the motherboard.

STEP 6.

Unplug the LCD cable from the screen.

STEP 7.

Remove the LCD screen assembly from the notebook. As you can see, the screen still has two mounting brackets attached to the left and right sides.

STEP 8.

In order to remove the mounting bracket, simply remove three screws. Transfer the bracket to the new screen.

If you are not confident to dissemble the laptop LCD screen, you had better stop and take the laptop for professional repair.

Is there a thought about what the internal structure of Sony PSP like when you are playing it. Now follow me to get it.

1. Open the battery compartment cover which behind the body behind .  
2. First,  remove battery that is 1800mAh capacity.

3. There is a warning word in the battery compartment. You can not get the Sony repair service for PSP if you Peeled off the seals.

4. You can see the contact part of the analog joystick and LCD screen protective film in front panel; take off the front panel of the PSP, not so awe-inspiring look!

5. Remove the transparent and L, R key

6. The power switch and DC IN port peripheral

7. The part of the circuit of right □ ○ △ × key .

8.Conductive rubber of L, R keys

9. Remove the LCD screen below a row of buttons .

10. And remove part of the circuit of the left side of the arrow keys

11. Open the most mysterious part, the UMD stores, remove the back of the UMD hatch, it is very beautiful!

12.   UMD drive connected with the body and the screw, there is the data line still connect with the motherboard after remove.

13. Back to the front , unload LCD screen from the Border

14.There were two cables connect with the motherboard and LCD screen, is very fragile and complex.

15. Completely remove the LCD screen, still can not unplug UMD cable.

16. Remove the UMD drive and the LCD screen, the motherboard completely out of the show .It can be seen many connections and fixed-tape above.

17. Remove the motherboard, you can  see the installation of MS Duo card slot and deputy board of the wireless modules.

18. Motherboard picture

19. Vice-board connected by the antenna and thin wires

20. The wireless transmitter module covered by a metal cover to shield, the metal lid is a two-tier structure, remove the top layer may still can protect it

21.The back and the bald par of UMD drive.

22.PSP family after completely disassembled.

Sizes and resolutions ,backlight type decides the model of  laptop LCD screen. The laptop LCD resolution should not be upgraded or downgraded. Before choosing a screen, please according to your laptop in SIZE , in RESOLUTION and in BACKLIGHT TYPE, order the right screen.

1. Screen Size Measurement.

Screen size is measured in inches diagonally from corner to corner as you can see in the picture below.

TIPS:1 inch=2.54 cm

The following is different standard for different laptop screen:

2.Resolution Matters.

NOTE: Laptop LCD resolution should not be upgraded or downgraded, otherwise LCD Cable & Inverter will be burnt.

We recommend  customers to buy the same LCD resolution as they have.

You can find the LCD resolution of your Laptop by the following way:

For Windows XP or older: go to Start -> Control Panel -> Display Properties

For Windows Vista: Right-Click on Desktop -> Graphics Properties 

Here is some common used reference for you:

Or you can use on-line check service, please note that the on-line tool tells your screen resolution and it only makes sense if you did not change factory default screen settings in Windows or Mac OS.

On-line Resolution Check.

3. Backlight Type.

Generally, there are two types of backlight in the market, CCFL  and LED backlight. CCFL(Cold Cathode Fluorescent Lamp) needs an inverter, but LED backlight needn’t, which uses light-emitting diodes as a source of light.  Now the used most is CCFL backlight.  As we know that desktop has double or three backlight for the monitor brightness, but taking account of power issue, notebooke screen brightness is reduced, so most of notebook screens only use  Single backlight, especially in small size, and some use Dual backlight. 

Single backlight,only one bulb with only one inverter connector in the screen, most used in the market.

So Dual backlight means: two bulbs in the screen with two inverter connector, not so much used.

LED backlight is a new type, used in some latest models. Led screen only has one socket to connect a video cable, no inverter cable. Usually, users can find the specifics in its laptop if using a LED screen.

NOTE:

There are mainly two types of LCD screen on the market, Matte and Glossy screens.  In order to scatter reflected light on the LCD screen surface, there’s a anti-glare finish on Mattescreens. And Glossy screens remove the optical coating, increasing a highly reflective coating, that will effectively improve the performance of contrast and color.   So Glossy screens are better for graphics and video display. Matte screens are beneficial to eyesight protection, especially work for a long time.

HERE comes a diagram for different companies call its own glossy screens: