How can we display text in digital format(seven segment display) on a UILabel similar to the way as text is displayed in Digital Clock.
Simple approach: use a custom font.
Here's a UILabel
subclass that allows you to embed custom fonts in your application: http://github.com/zynga/FontLabel
Here are a whole bunch of fonts that look like digital clocks: http://www.dafont.com/theme.php?cat=302 (be sure to read the licensing information for whatever font you choose)
For simple you can also use Apple recommended font.
label.font=[UIFont fontWithName:@"DBLCDTempBlack" size:60.0];
Please Check this to find all the font supported by iPhone.
With UILabel your best bet is a font that does what you need. Most likely you will have to implement drawing part by yourself. It will not be easy what your are asking.