Display apparatus
AssigneeSeiko Epson Corporation
InventorTokuroh Ozawa
Life of this patent
Estimating the term…
Abstract
For the purpose of providing a display apparatus capable of improving display quality by expanding the light-emission area of pixels by improving the layout of pixels and common power-feed lines formed on a substrate, pixels (7A, 7B) including a light-emission element (40), such as an electroluminescence element or an LED element, are arranged on both sides of common power-feed lines (com) so that the number of common power-feed lines (com) is reduced. Further, the polarity of a driving current flowing between the pixels (7A, 7B) and the light-emission element (40) is inverted so that the amount of current flowing through the common power-supply lines “com” is reduced.
Claims3
A display apparatus comprising:
- scanning lines;
- data lines;
- common power-feed lines;
- pixels corresponding to intersections of the scanning lines and the data lines, each pixel including:
- a pixel electrode;
- a counter electrode;
- a first transistor having:
- a first gate electrode connected to one scanning line of the plurality of scanning lines, and
- a first source region and a first drain region, one of the first source region and the first drain region being connected to one data line of the plurality of data lines;
- a second transistor having:
- a second gate electrode connected to the other of the first source region and the first drain region, and
- a second source region and a second drain region, one of the second source region and the second drain region being connected to one common power-feed line of the common power-feed lines and the other of the second source region and the second drain region being connected to the corresponding pixel electrode;
- a bank layer disposed above the second transistor;
- a light-emission element being disposed on the pixel electrode and surrounded by the bank layer;
- and
- a holding capacitor having:
- a first holding electrode electrically connected to the second gate electrode, and
- a second holding electrode electrically connected to the one common power-feed line.
Dependencies are inferred from the claim text.