Organic light emitting display device

Abstract

An organic light emitting display device according to an embodiment includes a substrate having a plurality of sub-pixels including first, second and third sub-pixels, the first and second sub-pixels disposed along a first direction and the third sub-pixel disposed adjacent to the first and second sub-pixels along a second direction; and a plurality of driving sub-pixels formed on the substrate, each of the driving sub-pixels including at least a driving transistor and a switching unit, wherein each of the driving sub-pixels corresponds to at least two sub-pixels among the plurality of sub-pixels.

What is claimed is: 
     
         1 . An organic light emitting display device, comprising:
 a substrate having a plurality of sub-pixels including first, second and third sub-pixels, the first and second sub-pixels disposed along a first direction and the third sub-pixel disposed adjacent to the first and second sub-pixels along a second direction; and   a plurality of driving sub-pixels formed on the substrate, each of the driving sub-pixels including at least a driving transistor and a switching unit,   wherein each of the driving sub-pixels corresponds to at least two sub-pixels among the plurality of sub-pixels.   
     
     
         2 . The device according to  claim 1 , wherein the plurality of driving sub-pixels include a first driving sub-pixel covering a predetermined display area,
 portions of the first and second sub-pixels covering the same predetermined display area, and   the driving transistor in the first driving sub-pixel is electrically connected to and drives a light emitting diode formed in at least one the second and third sub-pixels.   
     
     
         3 . The device according to  claim 1 , wherein each of the sub-pixels including the first, second and third sub-pixels includes:
 a first electrode formed on the substrate over a driving thin film transistor;   an organic emitting layer formed on the first electrode; and   a second electrode formed on the organic emitting layer.   
     
     
         4 . The device according to  claim 1 , further comprising:
 a plurality of connection lines, each of the connection lines electrically connecting a drain electrode of one driving transistor to one first electrode of a light emitting diode of one sub-pixel.   
     
     
         5 . The device according to  claim 4 , wherein the one driving transistor is electrically connected to the connection line through a first connection contact hole, and the one first electrode is electrically connected to the same connection line through a second connection contact hole. 
     
     
         6 . The device according to  claim 1 , wherein the driving transistor in each of the plurality of driving sub-pixels is electrically connected to a light emitting diode provided in one of the plurality of sub-pixels through a contact hole, and
 all the contact holes associated with the driving transistors form a line.   
     
     
         7 . The device according to  claim 1 , wherein the first, second and third sub-pixels are either green, red and blue sub-pixels, respectively, or red, green and blue sub-pixels, respectively. 
     
     
         8 . The device according to  claim 1 , wherein a first side of each of the first and second sub-pixels that is extending in the first direction is longer than a first side of each of the driving sub-pixels that is extending in the first direction, or a second side of each of the first and second sub-pixels that is extending in the second direction is shorter than a second side of each of the driving sub-pixels that is extending in the second direction. 
     
     
         9 . The device according to  claim 1 , wherein a first side of the third sub-pixel that is extending in the first direction is shorter than a first side of each of the driving sub-pixels that is extending in the first direction, and a second side of the third sub-pixel that is extending in the second direction is longer than a second side of each of the driving sub-pixels extending in the second direction. 
     
     
         10 . The device according to  claim 1 , wherein one of the driving sub-pixels overlaps three or four adjacent sub-pixels among the plurality of sub-pixels including the first, second and third sub-pixels. 
     
     
         11 . The device according to  claim 1 , wherein the driving sub-pixels provided in a predetermined display area have a same size and a same shape with each other, while at least one of the sub-pixels provided in the same predetermined display area has a size and shape that are different from another one of the sub-pixels provided in the same predetermined display area. 
     
     
         12 . The device according to  claim 1 , wherein the first and second directions are substantially perpendicular to each other.