TOKYO — Lee Chang-dong’s “Secret Sunshine,” Korea’s entry in the the foreign-language film Oscar race, will close the Tokyo Filmex film festival, fest officials announced on Thursday. Lee will chair the competition jury.The pic preemed in the Cannes competition this year. Jeon Do-yeon snagged best actress for her turn as a widow who leaves her home in Seoul with her young son to live in her dead hubby’s provincial hometown. Pic also screened in Toronto. Unspooling from Nov. 17 to 25, Tokyo Filmex’s competition specializes in pics from emerging Asian talents. Other sections include special screenings of pics from around the world and a retro usually devoted to a departed Asian helmer. The fest will announce its line-up, as well as the rest of its jury, Sept. 26.