Display device

A display device comprising:

• a plurality of luminous elements, each luminous element including:
• a first electrode connected to a first electrode interconnection;
• a second electrode facing said first electrode and connected to at least one second electrode interconnection positioned on at least one end of the luminous element;
• a luminous layer arranged between said first electrode and said second electrode;
• and
• a display region in which the plurality of luminous elements are arranged in a first and second direction in matrix, the first direction being perpendicular to the second direction, wherein said display region includes:
• a plurality of first electrode interconnections extending in said first direction and connected respectively to a plurality of said first electrodes arranged in said first direction, and
• a plurality of second electrode interconnections extending in said second direction and connected respectively to a plurality of said second electrodes arranged in said second direction;
• wherein an area outside of said display region comprises:
• a first bus line connected to one side of a plurality of said second electrode interconnections extending in said second direction and providing a current flow, and
• a second bus line connected to another side of a plurality of said second electrode interconnections extending in said second direction and for suppressing a variation of a voltage potential of said second electrode interconnection;
• wherein a resistance of said first bus line and a resistance of said second bus line are defined so as to satisfy the following formula:
• R1≦8×R2/N;
• R3≦R2, wherein
• Note that, in the above formula, said “R1” is indicated as a resistance of said first bus line, said “R2” is indicated as a resistance of said second electrode interconnection, said “R3” is indicated as a resistance of said second bus line and said “N” is indicated as a number of said second electrode interconnection.

A display device comprising:

• a plurality of luminous elements, each luminous element including:
• an anode electrode formed on a substrate and defining a luminous region and connected to an anode interconnection through a thin-film-transistor;
• a transparent cathode electrode connected to a pair of cathode interconnections positioned at opposite ends of the luminous element, and a portion of said transparent cathode electrode facing said anode electrode;
• a luminous layer arranged between said anode electrode and said cathode electrode;
• and
• a display region in which the plurality of luminous elements are arranged in a first direction and a second direction to form a matrix, and light is produced from the luminous layers in the plurality of luminous elements layer on the side opposite of said substrate, wherein said display region includes:
• a plurality of anode electrode interconnections extending in said first direction and respectively connected to a plurality of said anode electrodes arranged in said first direction, and
• a plurality of cathode electrode interconnections extending in said second direction and is connected to a plurality of said cathode electrodes arranged in said second direction;
• wherein an area outside of said display region comprises:
• a first bus line connected to one side of a plurality of said cathode electrode interconnections extending in said second direction and providing a current flow, and
• a second bus line connected to another side of the plurality of said cathode electrode interconnections extending in said second direction and for suppressing a variation of a voltage potential of said second electrode interconnection;
• wherein a resistance of said first bus line and a resistance of said second bus line are defined so as to satisfy the following formula:
• R1≦8×R2/N;
• R3<R2, wherein
• Note that, in the above formula, said “R1” is indicated as a resistance of said first bus line, said “R2” is indicated as a resistance of said second electrode interconnection, said “R3” is indicated as a resistance of said second bus line and said “N” is indicated as a number of said second electrode interconnection.