zhou qunfei has shared her incredible ` rags to riches ' life story with the people 's daily , after the self-made billionaire 's company lens technology went public .
the 45-year-old , whose company supplies protective window glass used in apple devices , was born into extreme poverty in a village in rural china .
zhou qunfei , 45 , has been named china 's richest woman after her mother died when she was five .
her father was impressed by the quality of her letter .