Method of producing display device, display device, method of producing thin-film transistor substrate, and thin-film transistor substrate

A display device comprising:

• first pixel rows each including thin-film transistors each having a source and a drain arranged in a first direction;
• second pixel rows each including thin-film transistors each having a source and a drain arranged in a second direction opposite to the first direction;
• and
• a plurality of light-emitting elements connected to the thin-film transistors.

A display device comprising:

• sub-pixels each including a light-emitting element connected to a pixel circuit having a thin-film transistor;
• pixel rows in which the sub-pixels are arranged along an arrangement direction of a source and a drain of the thin-film transistor;
• and
• display pixels each of which is composed of a set of three or more of the sub-pixels that are adjacently arranged in the arrangement direction and in which the order of arrangement of the source and the drain is reversed only in the thin-film transistor of the pixel circuit connected to the light-emitting element having the lowest luminous efficiency among the light-emitting elements provided in the sub-pixels.

A method of producing a thin-film transistor substrate comprising the steps of:

• forming gate electrodes on a substrate so that an arrangement of a source and a drain, in a row direction, of each of thin-film transistors arranged on the substrate is reversed every row;
• forming a gate insulating film and an amorphous semiconductor thin film on the substrate in that order so as to cover the gate electrodes;
• and
• crystallizing the semiconductor thin film by irradiating the semiconductor thin film disposed above the gate electrodes with an energy beam while scanning so that a scanning direction of the energy beam is the same with respect to the arrangement of the source and the drain in the row direction.