Display substrate, electro-optical device, and electronic apparatus

Abstract

To provide an electro-optical device and an electronic apparatus capable of maintaining the display quality by preventing brightness unevenness without widening a frame in a mounting terminal portion connection portions connecting to a fourth power source bus line are provided in two places. Driving current is supplied from the connection portions to the fourth power source bus line. The width of the fourth power source bus line is smaller than that of the width of a power source bus line supplying driving current from one place of the mounting terminal portion.

1. An electro-optical device, comprising:
 a plurality of pixel circuits that are provided in an effective region of a base and each of which includes an electro-optical element;   a first wiring line through which one of a control signal and a driving power is supplied to the plurality of pixel circuits; and   a second wiring line through which the other of the control signal and the driving power is supplied to the plurality of pixel circuits,   the first wiring line intersecting the second wiring line at an intersection that is located between the effective region and at least one edge of a plurality of edges constituting an outline of the base, and   the first wiring line having a first portion and a second portion whose width is narrower than a width of the first portion, and   the second portion being provided at the intersection.   
     
     
       2. The electro-optical device according to  claim 1 ,
 the second wiring line being provided in a layer in which the first wiring line is not formed.   
     
     
       3. The electro-optical device according to  claim 1 ,
 the second wiring line having a third portion and a fourth portion whose width is narrower than a width of the third portion, and the fourth portion being provided at the intersection.   
     
     
       4. The electro-optical device according to  claim 1 , the narrow portions being provided near one of the ends in the width direction of corresponding wiring lines. 
     
     
       5. The electro-optical device according to  claim 1 , the narrow portions are formed by cutting out portions at both ends in the width direction of the corresponding wiring lines. 
     
     
       6. The electro-optical device according to  claim 1 ,
 the path being provided corresponding to the second portion.   
     
     
       7. The electro-optical device according to  claim 1 ,
 the control signal being supplied to the plurality of pixel circuits through the first wiring line, and   the driving power being supplied to the plurality of pixel circuits through the second wiring line.   
     
     
       8. The electro-optical device according to  claim 7 , the first wiring line comprising:
 a main wiring line portion provided in the same wiring line layer as the second wiring line;   a bypass wiring line portion provided in a different wiring line layer from the second wiring line and intersecting the second wiring line at a different layer; and   a connection position to connect the main wiring line portion and the bypass wiring line portion to each other.   
     
     
       9. The electro-optical device according to  claim 7 , the second wiring line comprising:
 a main wiring line portion provided in the same wiring line layer as the first wiring line;   a bypass wiring line portion provided in a different wiring line layer from the first wiring line and intersecting the first wiring line at a different layer; and   a connection position to connect the main wiring line portion and the bypass wiring line portion to each other.   
     
     
       10. The electro-optical device according to  claim 7 , the first wiring line being provided in a different wiring line layer from the second wiring line and intersects the second wiring line at a different layer. 
     
     
       11. The electro-optical device according to  claim 7 , the first wiring line having narrow portions at intersections between the narrow portions of the second wiring line and the first wiring line. 
     
     
       12. The electro-optical device according to  claim 11 , the narrow portions of the plurality of power source bus lines being symmetric with respect to the longitudinal line passing through the width-wise center of the plurality of power source bus lines. 
     
     
       13. The electro-optical device according to  claim 7 , each of a plurality of second wiring lines being separated from another second wiring line by a constant spacing at the narrow portions. 
     
     
       14. The electro-optical device according to  claim 7 , part or all of the narrow portions of one of the second wiring lines overlap the region where another second wiring line would be if it did not have a narrow portion. 
     
     
       15. The electro-optical device according to  claim 7 , the plurality of electro-optical elements with different characteristics being characterized in that among the electro-optical elements are those emitting different color lights. 
     
     
       16. An electronic apparatus, comprising:
 an electro-optical device according to  claim 1 ;   a driving power source circuit connected to the electro-optical device to supply a driving power source to wiring lines to supply the driving power source or to the power source bus lines; and   a control signal generating circuit connected to the electro-optical device to supply control signals to wiring lines to supply the control signal or to the signal lines.   
     
     
       17. An electro-optical device, comprising:
 an electro-optical element;   a first wiring line through which one of a control signal and a driving power is supplied to the electro-optical element, the first wiring line having a first portion and a second portion; and   a second wiring line through which the other of the control signal and the driving power is supplied to the electro-optical element,   the second wiring line having a third portion, a fourth portion and a fifth portion that connects the third portion and the fourth portion,   the second portion of the first wiring line intersecting the fifth portion of the second wiring line,   the third portion and the first wiring line being provided in a first wiring layer, and   the fifth portion being provided in a second wiring layer where the first wiring line is not formed, and   a width of the second portion being narrower than a width of the first portion.   
     
     
       18. The electro-optical device according to  claim 17 ,
 wherein the intersection between the first wiring line and the second wiring line is located between an effective region and at least one edge of a plurality of edges constituting an outline of a base.   
     
     
       19. An electro-optical device, comprising:
 an electro-optical element;   a first wiring line that controls a driving power to the electro-optical element, the first wiring line having an opening portion; and   a second wiring line that controls a control signal controlling the electro-optical element,   the opening portion of the first wiring line being provided at an intersection between the first wiring line and the second wiring line,   a first width that is a total width of the first wiring line at the intersection other than the opening portion being smaller than a second width which is a total width at any one of parts where the first wiring line does not intersect the second wiring line.    
     
     
       20. An electro-optical device, comprising:
 a plurality of electro-optical elements;   a display portion having the plurality of electro-optical elements;   a first wiring line that controls a driving power to the electro-optical element, the first wiring line having an opening portion; and   a second wiring line that controls a control signal controlling the electro-optical element,   the opening portion of the first wiring line being provided at an intersection between the first wiring line and the second wiring line,   a first width that is a total width of the first wiring line at the intersection other than the opening portion being smaller than a second width which is a total width at any one of parts where the first wiring line does not intersect the second wiring line.    
     
     
       21. An electro-optical device, comprising:
 an electro-optical element;   a power source line having an opening portion; and   a data signal line,   the opening portion of the power source line being provided at an intersection between the power source line and the data signal line,   a first width that is a total width of the power source line at the intersection other than the opening portion being smaller than a second width which is a total width at any one of parts where the power source line does not intersect the data signal line.    
     
     
       22. An electro-optical device, comprising:
 an electro-optical element;   a first wiring line that controls a driving power to the electro-optical element, the first wiring line having an opening portion, the first wiring line extending along a first direction; and   a second wiring line that controls a control signal controlling the electro-optical element, the second wiring line extending along a second direction intersecting the first direction,   the first wiring line intersecting the second wiring line at a first part of the first wiring line,   the first wiring line not intersecting the second wiring line at a second part of the first wiring line,   a first distance that is a distance along the second direction between a first edge that is an outmost edge of the first part and a second edge that is an outmost edge of the first part positioned at a position opposite to the first edge being smaller than a second distance that is a distance along the second direction between a third edge that is an outmost edge of the second part and a fourth edge that is an outmost edge of the second part positioned at a position opposite to the third edge.    
     
     
       23. An electro-optical device, comprising:
 an electro-optical element;   a first wiring line that controls a control signal controlling the electro-optical element, the first wiring line having an opening portion; and   a second wiring line that controls a driving power to the electro-optical element,   the opening portion of the first wiring line being provided at an intersection between the first wiring line and the second wiring line,   a first width that is a total width of the first wiring line at the intersection other than the opening portion being smaller than a second width which is a total width at any one of parts where the first wiring line does not intersect the second wiring line.    
     
     
       24. An electro-optical device, comprising:
 an electro-optical element;   a first wiring line that controls a control signal controlling the electro-optical element, the first wiring line having an opening portion and extending along a first direction; and   a second wiring line that controls a driving power to the electro-optical element, the second wiring line extending along a second direction intersecting the first direction,   the first wiring line intersecting the second wiring line at a first part of the first wiring line,   the first wiring line not intersecting the second wiring line at a second part of the first wiring line,   a first distance that is a distance along the second direction between a first edge that is an outmost edge of the first part and a second edge that is an outmost edge of the first part positioned at a position opposite to the first edge being smaller than a second distance that is a distance along the second direction between a third edge that is an outmost edge of the second part and a fourth edge that is an outmost edge of the second part positioned at a position opposite to the third edge.    
     
     
       25. An electro-optical device, comprising:
 an electro-optical element;   a power source line; and   a data signal line having an opening portion,   the opening portion of the data signal line being provided at an intersection between the data signal line and the power source line,   a first width that is a total width of the data signal line at the intersection other than the opening portion being smaller than a second width which is a total width at any one of parts where the data signal line does not intersect the power source line.