El display panel, power supply line drive apparatus, and electronic device

Abstract

Disclosed herein is an electroluminescence display panel including: a pixel circuit; a signal line; a scan line; a drive power supply line; a common power supply line; a power supply line drive circuit; a high-potential power supply line; and a low-potential power supply line.

1 . A line drive apparatus, wherein in a layout pattern of the line drive apparatus:
 a first drive line is connected to a first source/drain of a first transistor and a first source/drain of a second transistor, a first row of pixel circuits being connected to said first drive line;   a second drive line is connected to a first source/drain of a third transistor and a first source/drain of a fourth transistor, a second row of pixel circuits being connected to said second drive line;   a high-potential power supply line connects a second source/drain of the first transistor to a second source/drain of the third transistor, said high-potential power supply line not crossing said first drive line or said second drive line;   a low-potential power supply line connects a second source/drain of the second transistor to a second source/drain of the fourth transistor.   
     
     
         2 . The line drive apparatus according to  claim 1 , wherein in the layout pattern:
 said low-potential power supply line crosses said first drive line and said second drive line.   
     
     
         3 . The line drive apparatus according to  claim 1 , wherein in the layout pattern:
 said high-potential power supply line crosses said first transistor, said second transistor, said third transistor, and fourth transistor.   
     
     
         4 . The line drive apparatus according to  claim 1 , wherein in the layout pattern:
 said low-potential power supply line crosses said first transistor, said second transistor, said third transistor, and fourth transistor.   
     
     
         5 . The line drive apparatus according to  claim 1 , wherein in the layout pattern:
 a first extraction wire connects said first source/drain of the second transistor to said first drive line.   
     
     
         6 . The line drive apparatus according to  claim 5 , wherein in the layout pattern:
 a second extraction wire connects said first source/drain of the fourth transistor to said second drive line.   
     
     
         7 . The line drive apparatus according to  claim 6 , wherein in the layout pattern:
 said low-potential power supply line crosses said first extraction wire and said second extraction wire.   
     
     
         8 . The line drive apparatus according to  claim 6 , wherein in the layout pattern:
 said high-potential power supply line crosses said first extraction wire and said second extraction wire.   
     
     
         9 . The line drive apparatus according to  claim 1 , wherein in the layout pattern:
 said low-potential power supply line overlaps said high-potential power supply line.   
     
     
         10 . The line drive apparatus according to  claim 1 , wherein in the layout pattern:
 a low power supply potential on said low-potential power supply line is lower than a high power supply potential on said high-potential power supply line.   
     
     
         11 . The line drive apparatus according to  claim 1 , wherein in the layout pattern:
 a first lead-out connects said second source/drain of the second transistor to said high-potential power supply line.   
     
     
         12 . The line drive apparatus according to  claim 11 , wherein in the layout pattern:
 a second lead-out connects said second source/drain of the fourth transistor to said high-potential power supply line.   
     
     
         13 . The line drive apparatus according to  claim 12 , wherein in the layout pattern:
 said low-potential power supply line crosses said first lead-out and said second lead-out.   
     
     
         14 . An electroluminescence display panel comprising the line drive apparatus according to  claim 1 . 
     
     
         15 . The electroluminescence display panel according to  claim 14 , further comprising:
 a signal line connected to a pixel circuit in the first row of pixel circuits and to a pixel circuit in the second row of pixel circuits;   a first scan line connected to said first row of pixel circuits, said first scan line being configured to provide a first write timing signal to said first row of pixel circuits;   a second scan line connected to said second row of pixel circuits, said second scan line being configured to provide a second write timing signal to said second row of pixel circuits.   
     
     
         16 . An electronic device comprising the electroluminescence display panel according to  claim 14 . 
     
     
         17 . An electronic device according to  claim 16 , further comprising:
 a system control block; and   an operation input block for said system control block.