Electro-optical device and electronic apparatus

Abstract

To improve the unevenness of brightness. A plurality of pixel circuits is arranged in a pixel region A. Main power lines LR, LG, and LB are provided in the outside of the pixel region A. In addition, first sub-power lines Lr 1, Lg 1, and Lb 1 and second sub-power lines Lr 2, Lg 2, and Lb 2 are provided in the inside of the pixel region A so as to be connected to each other at sub-power line connecting points P. Further, the pixel circuits are connected to the first sub-power lines Lr 1, Lg 1, and Lb 1 at pixel connecting points Q. The structure in which these power lines are arranged in a mesh shape enables a considerable reduction in voltage drop and the improvement of brightness unevenness.

1 . An electro-optical device comprising:
 a pixel region including a plurality of pixel circuits each having a light emitting element;   a main power line provided in an outer circumferential portion that is external to the pixel region, the main power line including a first portion and a second portion adjacent the first portion, the first portion extending along one side of the pixel region and the second portion extending along another side of the pixel region;   a plurality of first sub-power lines each connected to the first portion of the main power line and extending to the inside of the pixel region in a first direction;   a plurality of second sub-power lines each connected to the second portion that intersects the first direction;   sub-power line connecting points connecting the first sub-power lines to the second sub-power lines at some intersections therebetween; and   pixel connecting points connecting the pixel circuits to at least one of the plurality of first sub-power lines or the plurality of second sub-power lines,   one of the first sub-power lines including a plurality of wiring lines that are separated from each other by a distance.   
   
   
       2 . An electro-optical device comprising:
 a pixel region including a plurality of pixel circuits each having a light emitting element;   a main power line provided in an outer circumferential portion that is external to the pixel region, the main power line including a first portion and a second portion adjacent the first portion, the first portion extending along one side of the pixel region and the second portion extending along another side of the pixel region;   a plurality of first sub-power lines each connected to the first portion of the main power line and extending to the inside of the pixel region in a first direction;   a plurality of second sub-power lines each connected to the second portion of the main power line and extending to the inside of the pixel region in a second direction that intersects the first direction;   sub-power line connecting points connecting the first sub-power lines to the second sub-power lines at some intersections therebetween; and   pixel connecting points connecting the pixel circuits to at least one of the plurality of first sub-power lines or the plurality of second sub-power lines,   one of the first sub-power lines including a plurality of wiring lines that are discontinuously provided.   
   
   
       3 . The electro-optical device according to  claim 1 , the main power line surrounding the pixel region and both ends of each of the first sub-power lines, and the second sub-power lines being connected to the main power line. 
   
   
       4 . The electro-optical device according to  claim 1 , further comprising:
 a separate main power line that separates from the main line;   the light emitting elements including plural kinds of elements having different emission colors, and the main power line corresponding to one of the emission colors of the light emitting elements; and   the sub-power line connecting points being provided at at least some intersections of the first sub-power lines and the second sub power lines that are connected to the main power line and that are connected to the separate main power line.   
   
   
       5 . The electro-optical device according to  claim 1 , further comprising:
 a separate main power line that separates from the main power line;   the light emitting elements including plural kinds of elements having different emission colors, and the main power line corresponds to some of the light emitting elements having different emission colors whose voltage values are in a predetermined range at the time of white display and the separated main power line corresponding to others of the light emitting elements whose voltage values are outside the predetermined range at the time of white display; and   the sub-power line connecting points being provided at at least some intersections of the first sub-power lines and the second sub-power lines that are connected to the main power line, and being provided at at least some intersections of the first sub-power lines and the second sub-power lines that are connected to the separate main power line.   
   
   
       6 . The electro-optical device according to  claim 1 , the light emitting elements consisting of elements having the same emission color, and
 the sub-power line connecting points being provided at at least some intersections of the first sub-power lines and the second sub-power lines.   
   
   
       7 . The electro-optical device according to  claim 6 , further comprising color filters or a color-converting layer corresponding to a plurality of colors regularly arranged in the pixel region. 
   
   
       8 . The electro-optical device according to  claim 3 ,
 the wiring lines being connected to second sub-power lines corresponding to the same color.   
   
   
       9 . The electro-optical device according to  claim 3 , the sub-power line connecting points being provided at more intersections corresponding to one emission color than at intersections corresponding to another emission color. 
   
   
       10 . The electro-optical device according to  claim 3 ,
 the pixel circuits being arranged in the pixel region in a row direction and a column direction, and   the first sub-power lines being formed substantially parallel to the row direction every predetermined number of rows.   
   
   
       11 . The electro-optical device according to  claim 1 , the pixel circuits being arranged in the pixel region in a column direction, and deviating from each other by a predetermined distance in a row direction. 
   
   
       12 . An electronic apparatus comprising the electro-optical device according to  claim 1 .