If you feel that texting does not express your mood while you type an SMS, then new 'light messaging' by Nokia of Finland might just do the trick for you.

The company has filed a patent on a new breed of cellphone capable of 'light messaging', which could enable users to send a text with a background colour that clearly expresses their mood.

According to New Scientist magazine, the phone's software allows one to choose a colour that represents his or her mood: red for raging angry, perhaps, blue for sad, or yellow for mellow. The colour is encoded with the message, and is used to illuminate an LED array on top of the recipient's similarly equipped light-messaging phone.

	The colour is encoded with the message, and is used to illuminate an LED array on top of the recipient's similarly equipped light-messaging phone.

Nokia's Teppo Jokinen, the inventor of the system said that light messaging would 'enrich and improve user experiences', according to US patent application.