Display apparatus

Abstract

Disclosed herein is a display apparatus has a pixel array section including: pixel circuits which are each provided with a driving transistor and an electro-optical device and are laid out to form a matrix; and a draw wire provided in each of the pixel circuits to serve as a wire connecting the driving transistor to a power-supply providing line, wherein the resistance of the draw wire is relatively large in the pixel circuit close to a source applying a power-supply voltage to the power-supply providing line.

What is claimed is: 
     
         1 . A display apparatus comprising:
 a first pixel including a first transistor and a first electro-optical element,   a second pixel including a second transistor and a second electro-optical element,   a data signal line extending in a first direction; and   a potential line extending in a second direction different from the first direction,   
       wherein,
 the first transistor is connected to the potential line via a first draw wire comprising poly-silicon, 
 the second transistor is connected to the potential line via a second draw wire comprising poly-silicon, 
 the first draw wire is longer than the second draw wire. 
 
     
     
         2 . The display apparatus according to  claim 1 , wherein a position of the first pixel is closer than a position the second pixel to a scan circuit. 
     
     
         3 . The display apparatus according to  claim 1 , wherein a resistance of the first draw wire is larger than a resistance of the second draw wire. 
     
     
         4 . The display apparatus according to  claim 1 , wherein the first draw wire is connected to the potential line at a first contact area, and wherein the second draw wire is connected to the potential line at a second contact area. 
     
     
         5 . The display apparatus according to  claim 4 , wherein a size of the first contact area is smaller than a size of the second contact area. 
     
     
         6 . The display apparatus according to  claim 1 , wherein the first draw wire is directly connected to the first transistor. 
     
     
         7 . The display apparatus according to  claim 1 , wherein the potential line is configured to supply a driving current to the first electro-optical element through to the first transistor 
     
     
         8 . The display apparatus according to  claim 1 , wherein the first pixel further comprising a switching transistor, and a source or a drain of the switching transistor is connected to a gate of the first transistor. 
     
     
         9 . The display apparatus according to  claim 1 , wherein the switching transistor is configured to supply a video signal to a gate of the first transistor. 
     
     
         10 . The display apparatus according to  claim 1 , wherein each of the first draw wire and the second draw wire is made of a material that is different from as that of the potential line. 
     
     
         11 . The display apparatus according to  claim 1 , wherein the first draw wire is connected to the potential line at a first contact area including a plurality of contacts. 
     
     
         12 . The display apparatus according to  claim 1 , wherein a first line width of a first part of the potential line that crosses with the data signal line is smaller than a second line width of a second part of the potential line that connects to the first draw wire. 
     
     
         13 . An electronic device comprising the display apparatus according to  claim 1 .