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

Abstract

A method of producing a display device includes the steps of forming gate electrodes on a substrate so that an arrangement of a source and a drain, in a pixel row direction, of a thin-film transistor formed in each of pixels on the substrate is reversed every pixel 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; crystallizing the semiconductor thin film by irradiating the semiconductor thin film with an energy beam 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 pixel row direction; and forming a light-emitting element connected to the thin-film transistor.

What is claimed is: 
     
         1 . A display device comprising:
 a plurality of pixels, each of the pixels including at least a first sub-pixel configured to emit a first color of light, a second sub-pixel configured to emit a second color of light, and a third sub-pixel configured to emit a third color of light,   wherein each of the first, second, and third sub-pixels includes a light-emitting element connected to a pixel circuit, the pixel circuit having a thin-film transistor,   wherein a source of the thin-film transistor and a drain of the thin-film transistor are disposed along an arrangement direction, the arrangement direction being parallel to a row direction,   wherein an arrangement of the source and the drain along the arrangement direction is reversed in only the pixel circuit of the first sub-pixel.   
     
     
         2 . The display device according to  claim 1 , further comprising:
 first wiring lines extending along the row direction, said each of the first, second, and third sub-pixels being between one of the first wiring lines and another of the first wiring lines.   
     
     
         3 . The display device according to  claim 1 , wherein the first sub-pixel is between the second sub-pixel and the third sub-pixel. 
     
     
         4 . The display device according to  claim 1 , wherein a first thin-film transistor is in the first sub-pixel and a second thin-film transistor is in the second sub-pixel, a third thin-film transistor being in the third sub-pixel. 
     
     
         5 . The display device according to  claim 4 , further comprising:
 second wiring lines extending along a column direction, a second one of the second wiring lines being between a first one of the second wiring lines and a third one of the second wiring lines.   
     
     
         6 . The display device according to  claim 5 , wherein the row direction differs from the column direction in a plan view of the pixels. 
     
     
         7 . The display device according to  claim 5 , wherein a source of the first thin-film transistor is between a source of the second thin-film transistor and a drain of the first thin-film transistor, the drain of the first thin-film transistor being connected to the first one of the second wiring lines. 
     
     
         8 . The display device according to  claim 7 , wherein a drain of the second thin-film transistor is between the source of the second thin-film transistor and a drain of the third thin-film transistor, the drain of the second thin-film transistor being connected to the second one of the second wiring lines. 
     
     
         9 . The display device according to  claim 8 , wherein the drain of the third thin-film transistor is between the drain of the second thin-film transistor and a source of the third thin-film transistor, the third one of the second wiring lines being connected to the drain of the third thin-film transistor. 
     
     
         10 . An electronic device comprising:
 the display device according to  claim 1 ; and   a housing that retains the display device.