Apple has secured close to 60 percent of global touch panel capacity for 2011, leading to tight supplies for its competitors, according to a new report. Citing sources from upstream component makers, DigiTimes reports that Apple’s move was made in order to achieve its internal goal of shipping 40 million iPads in 2011, with the company holding control over the capacity of major panel suppliers such as Wintek and TPK. Sources from iPad distributors…