So I found a solution for this with the help of the guys on googlecode.
first of I needed to set the Variables to the different things I use: (to complete the picture I will write all my variables I added)
set %JAVA_HOME% to your Java folder (should be JDK 1.6) add to Path %JAVA_HOME%\bin
set %ANDROID_HOME% to your Android SDK folder add to Path %ANDROID_HOME%\tools and %ANDROID_HOME%\platform-tools
set %M2_HOME% to your Maven folder add to Path %M2_HOME%\bin
let maven generate your project with the playn-archetype
mvn archetype:generate -DarchetypeGroupId=com.googlecode.playn -DarchetypeArtifactId=playn-archetype -DarchetypeVersion=1.7.1
then add to the top-level pom (MyGame\pom.xml) the following code (text in double star is the things you must add)
<properties>
<playn.version>1.7.1</playn.version>
**<android.maven.version>3.6.0</android.maven.version>**
</properties>
and
<modules>
<module>assets</module>
<module>core</module>
**<module>android</module>**
</modules>
now you can run the project with
mvn install -pl android -am
and run it on your phone with
mvn -f android\pom.xml android:run
This should do the trick and if your phone is connected to the computer the android project with the background image should be visible on the display.