Display panel

A display panel comprising:

• a plurality of pixel electrodes;
• a plurality of light-emitting layers which are provided for said plurality of pixel electrodes, respectively;
• a counter electrode which is provided for said plurality of light-emitting layers;
• a plurality of driving transistors which are connected to said plurality of pixel electrodes, respectively;
• a plurality of switch transistors each of which supplies a write current between a drain and source of a corresponding one of said plurality of driving transistors;
• a plurality of holding transistors each of which holds a voltage between a gate and the source of a corresponding one of said plurality of driving transistors;
• a plurality of feed interconnections which are formed from a conductive layer different from a layer serving as sources, drains, and gates of said plurality of driving transistors, said plurality of switch transistors, and said plurality of holding transistors and connected to the drains of said plurality of driving transistors;
• a plurality of select interconnections each of which selects the switch transistor;
• and
• a plurality of common interconnections each of which is connected to the counter electrode.

A display panel comprising:

• a plurality of pixel electrodes;
• a plurality of light-emitting layers which are provided for each of said plurality of pixel electrodes;
• a counter electrode which is provided for the light-emitting layer;
• a plurality of driving transistors each of which is connected to each of said plurality of pixel electrode;
• a plurality of switch transistors each of which supplies a write current between a source and drain of the driving transistor;
• a plurality of holding transistors each of which holds a voltage between the source and gate of the driving transistor;
• a select interconnection which selects the switch transistor;
• a common interconnection which is formed from a conductive layer different from a layer serving as sources and drains and a layer serving as gates of the driving transistor, the switch transistor, and the holding transistor and connected to the counter electrode;
• and
• a feed interconnection which is formed from a conductive layer different from the layer serving as the sources, drains, and gates of the driving transistor, the switch transistor, and the holding transistor and connected to the drain of the driving transistor and is thicker than the common interconnection.

A display panel comprising:

• a transistor array substrate which is formed by providing a plurality of transistors for each pixel, each transistor having a gate, a gate insulating film, and a source/drain;
• a plurality of pixel electrodes which are provided in a plurality of rows on the transistor array substrate;
• a first light-emitting layer which is provided on each of said plurality of pixel electrodes of a first row to emit light of a first color;
• a second light-emitting layer which is provided on each of said plurality of pixel electrodes of a second row to emit light of a second color;
• a third light-emitting layer which is provided on each of said plurality of pixel electrodes of a third row to emit light of a third color;
• a counter electrode which is provided on the first light-emitting layer, the second light-emitting layer, and the third light-emitting layer;
• a select interconnection which has a top higher than the first light-emitting layer, the second light-emitting layer, and the third light-emitting layer and selects at least one of said plurality of transistors;
• a common interconnection which has a top higher than the first light-emitting layer, the second light-emitting layer, and the third light-emitting layer and is connected to the counter electrode;
• and
• a feed interconnection which has a top higher than the first light-emitting layer, the second light-emitting layer, and the third light-emitting layer and is connected to said plurality of pixel electrodes of said plurality of transistors.