Display apparatus

A display apparatus comprising a display element,

• said display element comprising a first substrate, and a second substrate having phosphors;
• said first substrate having disposed thereon a plurality of transistor elements, a plurality of thin-film electron emitter elements, a plurality of first signal lines extending in a first direction, and a plurality of second signal lines extending in a second direction perpendicular to said first direction;
• each of said thin-film electron emitter elements being provided for one of said transistor elements, having a structure comprising a base electrode, an insulator and a top electrode stacked as layers placed one on another in this order of enumeration, and emitting electrons when a positive-polarity voltage is applied to said top electrode;
• wherein each of said transistor elements is provided in an associated one of plurality of regions enclosed by said plurality of first signal lines and said plurality of second signal lines.

A display apparatus comprising a display element,

• said display element comprising a first substrate, and a second substrate having phosphors;
• said first substrate having formed thereon a plurality of transistor elements, a plurality of thin-film electron emitter elements, a plurality of first signal lines extending in a first direction, and a plurality of second signal lines extending in a second direction perpendicular to said first direction;
• each of said thin-film electron emitter elements being provided for one of said transistor elements, having a structure comprising a base electrode, an insulator and a top electrode stacked as layers placed one on another in this order of enumeration, and emitting electrons when a positive-polarity voltage is applied to said top electrode;
• wherein a control electrode of each of said transistor elements is electrically connected to an associated one of said first signal lines,
• a first electrode of each of said transistor elements is electrically connected to an associated one of said second signal lines, and
• a second electrode of each of said transistor elements is electrically connected to said base electrode of said thin-film electron emitter element associated with said transistor element.

A display apparatus comprising a display element, a first driving system and a second driving system;

• said display element comprising a first substrate, and a second substrate having phosphors;
• said first substrate having disposed thereon a plurality of transistor elements, a plurality of electron emitter elements each provided for one of said transistor elements, a plurality of first signal lines extending in a first direction, and a plurality of second signal lines extending in a second direction perpendicular to said first direction;
• wherein said first driving system supplies a driving voltage to each of said first signal lines;
• said second driving system supplies a driving voltage to each of said second signal lines;
• a control electrode of each of said transistor elements is electrically connected to an associated one of said first signal lines,
• a first electrode of each of said transistor elements is electrically connected to an associated one of said second signal lines,
• a second electrode of each of said transistor elements is electrically connected to said base electrode of said electron emitter element associated with said transistor element, and
• said second driving system has a constant-current circuit.

A display apparatus comprising a display element, a first driving system and a second driving system;

• said display element comprising a first substrate;
• said first substrate having disposed thereon a plurality of transistor elements, a plurality of electro-luminescence elements each provided for one of said transistor elements, a plurality of first signal lines extending in a first direction, and a plurality of second signal lines extending in a second direction perpendicular to said first direction;
• wherein said first driving system supplies a driving voltage to each of said first signal lines,
• said second driving system supplies a driving voltage to each of said second signal lines,
• a control electrode of each of said transistor elements is electrically connected to an associated one of said first signal lines,
• a first electrode of each of said transistor elements is electrically connected to an associated one of said second signal lines,
• a second electrode of each of said transistor elements is electrically connected to a first electrode of said electro-luminescence element associated with said transistor element,
• and said second driving system has a constant-current circuit.

A display apparatus comprising a display element, a first driving system and a second driving system;

• said display element comprising a first substrate;
• said first substrate having disposed thereon a plurality of transistor elements, a plurality of light-emitting diode elements each provided for one of said transistor elements, a plurality of first signal lines extending in a first direction, and a plurality of second signal lines extending in a second direction perpendicular to said first direction;
• wherein said first driving system supplies a driving voltage to each of said first signal lines,
• said second driving system supplies a driving voltage to each of said second signal lines,
• a control electrode of each of said transistor elements is electrically connected to an associated one of said first signal lines,
• a first electrode of each of said transistor elements is electrically connected to an associated one of said second signal lines,
• a second electrode of each of said transistor elements is electrically connected to a first electrode of said light-emitting diode element associated with said transistor element, and
• said second driving system has a constant-current circuit.