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Frequently Asked Questions

What is the LCD and LED screen?

An LED-backlit LCD display is a flat panel display that uses LED backlighting instead of the cold cathode (CCFL) backlighting used in most other LCDs. The use of LED backlighting allows for a thinner panel, lower power consumption, better heat dissipation, a brighter display, and better contrast levels. LED backlit LCD TVs use the same TFT LCD technologies as CCFL backlit LCD TVs.

A liquid crystal display (LCD) is a flat panel display that uses is a cathode used within nixie tubes, gas discharge lamps, discharge tubes. Below is the typical type of LCD screen and LED screen.

LED Screen w/ Bottom Right Connector

LED Screen w/ Bottom Left Connector

It is Slim Thin LED w/ Bottom Right Connector

LCD Screen w/ CCFL

How can I measure my screen size?

Laptop manufacturers sometime make several different sizes in the same laptop model. It is very important to know which screen size you have. There is several ways to determine your screen size. Please see below.

What is the resolution? How do determine my screen resolution?

The display resolution is how many pixels you have in each vertical and horizontal dimension which can be displayed. For example, XGA resolution means 1024X768.

Type Width (px) Height (px)
SVGA 800 600
WSVGA 1024 600
XGA 1024 768
XGA+ 1152 864
WXGA 1280 720
WXGA 1280 768
WXGA 1280 800
SXGA– (UVGA) 1280 960
SXGA 1280 14024
WXGA HD 1360 768
WXGA HD 1366 768
WXGA+ 1440 900
WXGA+ HD 1600 900
UXGA 1600 1200
WSXGA+ 1680 1050
WUXGA FHD 1920 1080
WUXGA 1920 1200
WQHD 2560 1440

My screen is dim or dark. What could be issue?

The dim for a variety of reasons. It is hard to diagnose which part causes the dim screen. The most common causes of a dim laptop screen would be the inverter board, CCFL backlight, data cable, or system board. Therefore, not all issue of dim or dark screen cause by bad backlight. Smart-Micro USA can help you to determine which problem you have easily. Just contact with us.

How do I find out my laptop model number?

Each laptop manufacturers has different way to locate the model number. Some of them can be found in front of screen cover. Some of them can be found on the bottom of laptop. Below is some example of laptop model number location.

Dell

Sony

HP

Toshiba

Apple