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US 6,618,029 B1Granted
Display apparatus
AssigneeSeiko Epson Corporation
InventorTokuroh Ozawa
Life of this patent
Estimating the term…
Abstract
A display apparatus is provided which is 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 including a light-emission element, such as an electroluminescence element or an LED element, are arranged on both sides of common power-feed lines so that the number of common power-feed lines is reduced. Further, the polarity of a driving current flowing between the pixels and the light-emission element is inverted so that the amount of current flowing through the common power-supply lines is reduced.
Claims24
A display apparatus comprising:
- a plurality of scanning lines;
- a plurality of data lines;
- a plurality of common power-feed lines;
- a plurality of pixels corresponding to intersections of the plurality of scanning lines and the plurality of data lines,
- one pixel of the plurality of pixels comprising:
- a first transistor having a first gate electrode connected to one scanning line of the plurality of scanning lines;
- a holding capacitor that holds a signal supplied from one data line of the plurality of data lines via the first transistor;
- a second transistor having a second gate electrode connected to the holding capacitor;
- and
- a light-emission element having an organic semiconductor film which emits a light by a driving current that flows between a pixel electrode and counter electrode when the pixel electrode is electrically connected to a corresponding common power-feed line of the plurality of common power-feed lines, the organic semiconductor film being surrounded by a bank layer,
- the one data line passing on a side opposite to the corresponding common power-feed line with respect to the one pixel;
- and
- the bank layer overlapping the corresponding common power-feed line.
10 more elements
A display apparatus comprising:
- a plurality of scanning lines;
- a plurality of data lines;
- a plurality of common power-feed lines;
- a plurality of pixels corresponding to intersections of the plurality of scanning lines and the plurality of data lines;
- one pixel of the plurality of pixels comprising:
- a first transistor having a first gate electrode connected to one scanning line of the plurality of scanning lines;
- a holding capacitor that holds a signal supplied from one data line of the plurality of data lines via the first transistor;
- a second transistor having a second gate electrode connected to the holding capacitor;
- and
- a light-emission element having an organic semiconductor film which emits a light by a driving current that flows between a pixel electrode and counter electrode when the pixel electrode is electrically connected to a corresponding common power-feed line of the plurality of common power-feed lines, the organic semiconductor film being surrounded by a bank layer;
- at least a part of the bank layer overlapping the corresponding common power-feed line.
8 more elements
A display apparatus comprising:
- a plurality of scanning lines;
- a plurality of data lines;
- a plurality of common power-feed lines;
- a plurality of pixels corresponding to intersections of the plurality of scanning lines and the plurality of data lines;
- one pixel of the plurality of pixels comprising:
- a first transistor having a first gate electrode connected to one scanning line of the plurality of scanning lines;
- a holding capacitor that holds a signal supplied from one data line of the plurality of data lines via the first transistor;
- a second transistor having a second gate electrode connected to the holding capacitor;
- and
- a light-emission element having an organic semiconductor film which emits a light by a driving current that flows between a pixel electrode and counter electrode when the pixel electrode is, electrically connected to a corresponding common power-feed line of the plurality of common power-feed lines, the organic semiconductor film being surrounded by a bank layer;
- the one data line passing on a side opposite to the corresponding common power-feed line with respect to the one pixel;
- and
- the line width of the corresponding common power-feed line being set to be wider than that of the one data line.
10 more elements
A display apparatus comprising:
- a plurality of scanning lines;
- a plurality of data lines;
- a plurality of common power-feed lines;
- a plurality of pixels corresponding to intersections of the plurality of scanning lines and the plurality of data lines;
- one pixel of the plurality of pixels comprising:
- a first transistor having a first gate electrode connected to one scanning line of the plurality of scanning lines;
- a holding capacitor that holds a signal supplied from one data line of the plurality of data lines via the first transistor;
- a second transistor having a second gate electrode connected to the holding capacitor;
- and
- a light-emission element having an organic semiconductor film which emits a light by a driving current that flows between a pixel electrode and counter electrode when the pixel electrode is electrically connected to a corresponding common power-feed line of the plurality of common power-feed lines, the organic semiconductor film being surrounded by a bank layer;
- the line width of the corresponding common power-feed line being set to be wider than that of the one data line.
8 more elements
Dependencies are inferred from the claim text.