Semiconductor circuit, driving circuit of electro-optical device, and electronic apparatus

Abstract

A semiconductor circuit includes a first circuit block, a second circuit block, and power wiring lines that supply a plurality of reference potentials. The first circuit block and the second circuit block are connected to a common power wiring line that is one of the power wiring lines and supplies a common reference potential. A width of the common power wiring line in the first circuit block is smaller than a width of the common power wiring line in the second circuit block.

What is claimed is: 
     
         1 . An electro-optical substrate comprising:
 a scanning line;   a data line;   a switching unit which is disposed at a first position corresponding to an intersection of the scanning line and the data line;   a pixel electrode which is disposed at a second position corresponding to the first position;   a driving circuit that includes a first circuit block having at least one of a clock control circuit, a clock generating circuit, a unit shift circuit, a logic circuit, and an inverter circuit and a second circuit block having at least one of a level shift circuit that amplifies a low-amplitude signal to a high-amplitude signal and a buffer circuit; and   a common power wiring line that supplies a potential to the first circuit block and the second circuit block,   the common power wiring line having a main line, a first branch line and a second branch line,   the first branch line branching off from the main line and having a first width,   the second branch line branching off from the main line and having a second width,   the first branch line being electrically connected to the first circuit block,   the second branch line being electrically connected to the second circuit block,   the second width being larger than the first width.   
     
     
         2 . The electro-optical substrate according to  claim 1 , a first current consumption of the first circuit block being different than a second current consumption of the second circuit block. 
     
     
         3 . An electro-optical device comprising the electro-optical substrate according to  claim 1 . 
     
     
         4 . An electronic apparatus comprising the electro-optical substrate according to  claim 1 . 
     
     
         5 . An electro-optical substrate comprising:
 a scanning line;   a data line;   a switching unit which is disposed at a first position corresponding to an intersection of the scanning line and the data line;   a pixel electrode which is disposed at a second position corresponding to the first position;   a driving circuit that includes a first circuit block having at least one of a clock control circuit, a clock generating circuit, a unit shift circuit, a logic circuit, and an inverter circuit and a second circuit block having at least one of a level shift circuit that amplifies a low-amplitude signal to a high-amplitude signal and a buffer circuit; and   a common power wiring line that supplies a potential to the first circuit block and the second circuit block,   the common power wiring line having a main line, a first branch line and a second branch line,   the first branch line being positioned between the first circuit block and the second branch line,   the second branch line being positioned between the second circuit block and the first branch line,   the second branch line having a second width larger than a first width of the first branch line.   
     
     
         6 . An electro-optical substrate comprising:
 a scanning line;   a data line;   a transistor which is disposed at a first position corresponding to an intersection of the scanning line and the data line;   a pixel electrode which is disposed at a second position corresponding to the first position;   a driving circuit that includes a first circuit block having at least one of a clock control circuit, a clock generating circuit, a unit shift circuit, a logic circuit, and an inverter circuit and a second circuit block having at least one of a level shift circuit that amplifies a low-amplitude signal to a high-amplitude signal and a buffer circuit; and   a common power wiring line that supplies a potential to the first circuit block and the second circuit block,   the common power wiring line having a main line, a first branch line that extends along a first direction and a second branch line that extends along the first direction,   the first branch line being positioned between the first circuit block and the second branch line,   the second branch line being positioned between the second circuit block and the first branch line,   the first branch line having a first width along a second direction perpendicular to the first direction different from a second width of the second branch line along the second direction.   
     
     
         7 . The electro-optical substrate according to  claim 6 , wherein the first width of the first branch line is smaller than the second width of the second branch line. 
     
     
         8 . The electro-optical substrate according to  claim 6 , wherein a first current consumption of the first circuit block is different than a second current consumption of the second circuit block. 
     
     
         9 . The electro-optical substrate according to  claim 6 , wherein:
 a first current flows through the branch line part;   a second current flows through the second branch line; and   a first quantity of the first current per unit time is different from a second quantity of the second current.   
     
     
         10 . The electro-optical substrate according to  claim 6 , wherein:
 the first current flows to the first circuit block without flowing through the second branch line; and   the second current flows to the second circuit block without flowing through the first branch line.   
     
     
         11 . An electro-optical device comprising:
 the electro-optical substrate according to  claim 6 .