Knowledge Base

Dell LCD Display Pixel Guidelines


Table of Contents:

  1. LCD Display Pixel Guidelines
  2. Pixel/ Dot Grid
  3. Determining the LCD Panel Type in Your Computer

This article provides information on the LCD display pixel guidelines.


LCD Display Pixel Guideline



Each Pixel is made up of a Red, Green and Blue sub-pixel. When a sub-pixel is fixed in an unchanging state, the visible result is a tiny black, white or colored spot that appears on the screen. There are generally two types of sub-pixel defects namely Bright and Dark sub-pixel defects.

A sub-pixel defect is also referred to as a dot defect.

Bright Sub-Pixel defects: A sub-pixel remains permanently lit, resulting in a white or colored dot on a Black background.

Dark Sub-Pixel defects: A sub-pixel remains permanently unlit, resulting in a black or colored dot on a White background.

Premium Panel Guarantee are premium within the industry because they are guaranteed during the term of the Limited Hardware Warranty1 to have zero pixels stuck in the "on" position — a factor that results in a bright dot on the display.

During LCD manufacturing process, it is not uncommon for one or more sub-pixels to become fixed in an unchanging state. A display with 1 to 5 fixed sub-pixel is considered normal and within industry standards.

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Pixel/Dot Grid



Your LCD display is possibly subject to replacement if it meets the criteria outlined in (Table 1).
Only fixed sub-pixels/dots (bright or dark) visible to naked eye at normal viewing distance would be allowed for replacement.
For information on finding out what LCD panel is installed refer to the Determining the LCD Panel Type in Your Computer section.

Panel Bright Sub-Pixel Dark Sub-Pixel Total Sub-Pixel

Flat Panel Monitors with Premium Panel Guarantee
  • Dell UltraSharp Monitors(U, UP, UZ series)
  • Dell Professional Monitors (P series)
  • Alienware OptX Monitors (AW series)
1 or more 6 or more Bright = 1 or more
Dark = 6 or more
Dell Monitors (D Series) 6 ore more 9 ore more Combination of Bright and Dark = 9 or more
All Other Dell Monitors 6 or more 6 or more Combination of Bright and Dark = 6 or more

Laptop LCD screens with standard panels on :
  • Dell Inspiron laptops
  • Dell Latitude laptops
  • Dell Precision Mobile Workstations
  • Dell Studio laptops
  • Dell Vostro laptops
  • Dell XPS laptops
  • Alienware laptops

for either (HD, SXGA, WSVGA, WXGA) LCD resolution
3 or more 6 or more Combination of Bright and Dark = 6 or more

Laptop LCD screens with Premium Panel Guarantee on :
  • Dell Inspiron laptops
  • Dell Latitude laptops
  • Dell Precision Mobile Workstations
  • Dell Studio laptops
  • Dell Vostro laptops
  • Dell XPS laptops
  • Alienware laptops

for either (FHD, HD+, WSXGA, WSXGA+, WXGA+, WUXGA) LCD resolution
1 or more 6 or more Bright = 1 or more
Dark = 6 or more

Laptop LCD screens with Premium Panel Guarantee on :
  • Dell Latitude ATG Laptops
  • Dell Latitude XFR Laptops
1 or more 6 or more Bright = 1 or more
Dark = 6 or more

Table 1: LCD Policy Table

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Determining the LCD Panel Type in Your Computer

  1. Browse to the Product Support Page.
    Enter your Service Tag, and click Submit, for more information on finding you Service Tag, refer to Dell Knowledge Base article What is a Service Tag and How Do I Locate It?.
  2. Click the System Configuration Tab.
  3. Click Original Configuration.
  4. Click Components.
  5. Press the <Ctrl> and <F> keys together.
  6. In the Find window, type LIQUID CRYSTAL DISPLAY, and click Next.
  7. Look for a listing of HD, SXGA, WSVGA, WXGA, FHD, HD+, WSXGA, WSXGA+, WXGA+ or WUXGA (you may need to click click Next more than once to find the type of LCD panel in your computer).


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Article ID: SLN130145

Last Date Modified: 09/21/2014 08:28 PM


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