I don't like having to unlock the screen after 30-60 seconds of idle time. I like the screen going blank to save battery time, but it's annoying to constantly go through the pattern to unlock it. Is there an app that lets you customize those settings?[/QUOTE
As a couple have mentioned there are options, but you need to explain a little more. Is is going dark to soon? Is it that you just dont like the unlock portion once it goes dark?
First off...screebl is a must as someone mentioned. Make sure to watch the video either from their website or from within the app and set it up. This will just prevent turning off the screen though and not what you may be looking for.
Pattern lock is completely up to you. You can of course stop using the dotted pattern lock and just use the regular unlock screen.
Once the screen goes black you only have a short period. There may be an app to change or stop this, but otherwise this cannot be changed. So...the way I took your original question...can you stop it from going to lock screen after going black...no. Not without some third party app and I am not up on what is out there for this.
I do wonder why it is so critical to undo immediately when it is sitting idle long enough for it to get to this stage in the first place? If it is not critical that you have security just turn off pattern lock. Do understand that touch screens have this lock feature for a purpose and not just to annoy. The iphone also has this and it prevents unwanted calls or your screen going dead because every little touch turns it back on. Just part of the price and more needed than you may think.