SEOUL, KOREA, March 13 (Reuters) - Shares in LG Electronics jumped on Friday on a brokerage upgrade and positive comments from the company's CEO, which brightened the outlook for the world's No.4 handset maker.

Citigroup in a report raised its target price on LG Elec to 110,000 won from the previous 100,000 won, and also upped its earnings estimates for the firm in fiscal 2009 and 2010.

Shares were also helped by comments from CEO Nam Yong during the firm's annual shareholder meeting that it would boost investment in solar cell batteries and light emitting diodes (LED), analysts said.

Shares in LG Elec were up 5.7 percent as of 0206 GMT, compared to the KOSPI's 0.62 percent gain.

(Reporting by Jungyoun Park; Editing by Jonathan Hopfner)