Wallpaper trick

I saw a post on this site a while back.  It was from someone who wanted to know if you could choose "no wallpaper" and have a black screen.  I have been using the factory black/grey wallpaper for a while and I know that on the Captivate there is no true "black" wallpaper.  So I had an awesome idea.  I went into a completely dark room and took a picture with my camera.  I set that picture as my wallpaper and I think it turned out pretty cool.  It makes every thing on your home page stand out really well. 

AMOLED screens do not have a back light. Rather, each pixel is an Organic Light Emitting Diode that makes its own light. The fact that black color is produced when the pixel is switched off means that reducing how many pixels you have on during regular use of your phone can have a big impact on battery life.

Source - http://www.irnovo.com/2011/01/save-battery-using-amoled-display-how.html

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    (1) At maximum brightness, screen on for 15 minutes
    - Default wallpaper will consume about 5% (from 36% down to 31%)
    - Pure black wallpaper will consume about 3% (from 30% down to 27%)

    (2) At brightness = 20+%, screen on for 15 minutes
    - HTC Black wallpaper will consume about 2% (from 26% down to 24%)
    - Default wallpaper will consume about 3% (from 23% down to 20%)

All the above experiments was done in this condition:
- Wifi OFF
- Mobile network OFF
- GPS OFF
- Bluetooth OFF
- Screen at home screen with default HTC clock (white background with weather)
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Note the change isnt much and its almost worthless if you like pretty backgrounds like i do.. but the fact is true since I have tested it myself as well looking for ways to improve my battery. Yet since ive setup Tasker to do everything for me and Ive Optimized my ram as much as possible I dont really need to worry about anything like this.. Stock captivate users may want to as to save that extra percentage.

This is an experiment taken from this source: http://forum.xda-developers.com/showthread.php?t=660853 - click here to read the full post.


For a true black wallpaper modified to the captivates resolution that i made click here -> http://www.2shared.com/photo/0FQ1A5xw/cappy_wallpaper_960x800.html

or use your phone to scan it and download it with this