Sony's Bravia 4K Television

Sony's Bravia 4K Television

Kiyoshi Ota/Bloomberg

Sony Corp.'s Bravia 4K liquid crystal display (LCD) television is displayed at its launch in Tokyo. Sony’s share of global TV revenue fell to 7.5 percent in the third quarter last year from 8.1 percent the previous quarter, according to NPD DisplaySearch. Sony ranked third, trailing Samsung and LG.