Sharp plans to spend 100 billion yen (roughly $1.2 billion) to build production lines for small and midsized LCDs, the bulk of which Apple is expected to purchase for use in the iPhone, according to a new report. Citing the Nikkei business daily, Reuters reports that Sharp will begin installing the lines at a Mie Prefecture plant next year, with mass production expected to begin in the second half of 2012. Apple is expected to shoulder a large portion…