Sony has decided to postpone making additional investment in a Sharp subsidiary that makes liquid crystal displays for televisions in Osaka Prefecture, the Kyodo News agency reported on Tuesday.

According to the report, Sony's decision is based on the fact that the strong yen is keeping the prices of Japanese-made LCD screens high relative to those assembled abroad.

Sony invested 10 billion yen in the Sharp unit in 2009 and had planned to boost its stake in the company to a maximum of 34% by the end of this month from the current 7%.

Sony aims to improve the profit margin of its TV business by buying more inexpensive panels made by Taiwan and South Korean manufacturers.