She’s the most successful self-made female billionaire in the world, and comparatively few people have ever heard of her. Meet Zhou Qunfei, school dropout (by economic necessity), former factory worker–and founder and CEO of Lens Technologies, the world’s leading manufacturer of touch screens for companies like Apple and Samsung.
Zhou, 45, who grew up in a tiny village in China, lost her mother at age 5. Her father was nearly blind after an industrial accident. She dropped out of school at age 16, rose through the ranks at work, and ultimately launched her own glass-refining company, which went public earlier this year.