Data Product Services Ltd.

Dead Pixel Tester, with display tests. NEW VER 2.30 - TFT screens have thousands of pixels, on a 1024x768 monitor, there are three cells for each pixel - one each for red, green, and blue - which amounts to nearly 2.4 million cells (1024x768x 3 = 2,359,296). There's only a slim chance that all of these will be perfect; more likely, some will be stuck on (creating a "bright" defect) or dead (resulting in a "dark" defect). DPT was written to help me check my own screens (Couldn't find one that worked across multiple desktops so had to write my own!) by cycling through the three primary colours used (red,green,blue) and all on (white) and all off (black).

Simply select a colour then closely inspect your monitor in each of the primary colours checking for pixels that are not operating as expected. Stuck pixels (always on) are easier to notice than pixels that are not on due to their size (normally under .5mm). This application is freely distributable for non commercial gain, for any other usage please contact us.

Why do I need/would want to use this program?

In most cases, a stuck or dead pixel is impossible to fix (some people rub them gently with a cloth etc. search the net for other ways), however most manufacturers have a policy which will specify that after X amount of dead/stuck pixels they will replace the screen free of charge (in warranty period). You can use DPT to help identify IF you have any pixels and how many in order to see if you qualify for a replacement screen/laptop... no guarantees though!

Usage

• Move the window by grabbing the border at any location
• The [x] in the top right hand corner hides the screen
• Click the www.dps.uk.com text to visit our site
• Left mouse click : Cycles though the basic colours Red, Green, Blue, Black and White
• Middle mouse click : Toggles the mouse cursor on and off, scrolling the wheel changes the pattern
• Right mouse click : Shows and Hides the Main Menu
• Pattern selection: Toggles between a solid colour on the screen and a selection of patterns (also display utilities). All the patterns are 1 pixel wide to help make spotting dead pixels easier. The secondary colour (off color) can be chosen via the Direct Colour Selection
• Auto Cycle : Automatically colour cycles as if you where pressing the mouse button. Next to this you can change the speed at which this occurs in milliseconds (1000ms=1second)
• Help and About : Brings up another moveable window with some license info and help
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  • Move the window by grabbing the border at any location
  • Close the window by clicking on the [x] in the top right corner
  • Click the donate logo to go to the donation webpage where I accept PayPal and NoChex
• Direct selection : Turns on and off the direct colour selection form (see below)
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  • Move the window by grabbing the border at any location
  • Close the the window by clicking the [x] in the top right corner
  • Left mouse button : Selects the colour to be displayed
  • Right mouse button : Selects the secondary colour to be displayed when using hash (this will be automatically turned on if it is not on alread)
  • Colour selector : Pops up the standard colour defining screen where you can pick or make any colour to use.
• Launch a pixel exerciser : There has been some talk on the web of a video that can cure stuck pixels on the PSP, which works by rapidly changing the colour of the pixels. I can not verify or deny if this works, but for fun I wrote my own pixel exerciser. This will bring up another moveable window, that you can put over the stuck pixel(s) which will randomly change the colour of the pixel. Different places say different things on the effectiveness of this, but most leave it running for several hours before they see a result. If this does work for you then please send a donation :) and an email so I can post any results.
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  • Move the window by grabbing the border at any location
  • Close the window by moving to the top right hand border
  • Resize the window by moving to the bottom right hand border
• Exit : Dead Pixel Tester : Closes this application!
• Main colour : Shows you the current colour selected
• Pattern colour : Shows you the secondary colour you currently have selected (from the Direct colour selector, using the secondary mouse button)

What does this program NOT do?

• Washing up
• Earn me money :)
• AUTOMATICALLY POINT OUT YOUR DEAD PIXELS - this is physically impossible for any application to do, all this program does is display colours and grids to try and help you identify dead/stuck pixels
• Contact the web or send ANY information or store any information (In fact you can run it directly off a USB disk or floppy even!)

Download

DPT Version 2.30c (Code signed) Size : 222kb Date : 12 Oct 2007

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Examples