The Swedish founder of the Ikea furniture chain, Ingvar Kamprad, has died at the age of 91, the company has announced. Mr Kamprad - who pioneered flat-pack furniture - died at his home in Småland, Ikea confirmed in a statement. The company said that Mr Kamprad was "one of the greatest entrepreneurs of the 20th century". The billionaire, who was born in 1926 in Småland, founded Ikea at the age of 17. He used some money his father had given him as a gift for performing well at school despite his dyslexia. His company's designs became popular in part because of their simplicity and value. Mr Kamprad is reported to have come up with the idea of flat-pack furniture after watching an employee remove the legs from a table in order to fit it into a customer's car.