Black Screen on Powershot S100

Black Screen on Powershot S100

My Canon PowerShot S100 doesn't start. When switching on, the lens moves out a bit and immediately back in. The green LED on backside flashes a few seconds. When switching on by pressing the play button, the LED also flashes a few seconds. In both cases the screen remains completely black. Battery problem can be excluded. Could a defective display cause, that the camera stops moving out the lens?