A backlight unit using electron emission elements and a display apparatus having the same

摘要

A backlight unit (30) includes a first substrate (40) including an anode electrode (43); and a second substrate (50) including a cathode electrode (100) and an electron emission element (80), wherein the cathode electrode (100) includes a terminal portion (110) and at least one electrode strip (120) extending from the terminal portion (110), and the electrode strip (120) includes an electron emission portion (123) on which the electron emission element (80) is mounted and a junction portion (121) which is disposed between the terminal portion (110) and the electron emission portion (123), and wherein the closer the junction portion (121) is to the terminal portion (110) the greater the width of the junction portion (121) is.