3 results about "Cold cathode" patented technology

The invention relates to a manufacturing method of electron emitting member, a cold cathode field emission device and a cold cathode field emission device, comprising the steps of (a) forming, on a predetermined region of a cathode electrode 11 formed on a supporting member 10, a composite layer having a constitution in which carbon nanotube structures 20 are embedded in a matrix 21, and (b) allowing a peel-off layer 24 to adhere onto the surface of the composite layer 22 and then mechanically peeling off the peel-off layer 24, to obtain an electron emitting portion 15 in which the carbon nanotube structures 20 are embedded in the matrix 21 in a state where the top portion of each carbon nanotube structure 20 is projected.

The present invention relates to a backlight for a liquid crystal display (LCD). The backlight can comprise a back cover including a bottom plate and side covers, a light guide plate disposed on the bottom plate, and cold cathode fluorescence lamps (CCFLs) located on the sides of the light guide plate and enclosed by the side covers. The CCFLs can be disposed on four sides of the light guide plate. The CCFLs can be two lamps in L shape or four lamps in a straight line shape disposed on the sides of the light plate, with high voltage ends of one CCFL adjacent to the low voltage ends of another CCFL, thus allowing the LCD lighter, slimmer and more compact in structure.