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US 7,145,612 B2Granted
Display device comprising plasma discharge switching element with three electrodes
AssigneeSharp Kabushiki Kaisha
InventorsOsamu Sakai, Masaya Okamoto
Life of this patent
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Abstract
A switching element includes a first electrode 1 and a second electrode 2 provided apart from each other so as to run a discharge current between them, and a third electrode 3 configured to be capable of changing the difference in potential from at least one of the first and second electrodes 1 and 2, and of controlling the magnitude of the discharge current running between the first and second electrodes 1 and 2 by changing this potential difference.
Claims24
A display device comprising:
- a plurality of pixels arranged in a matrix;
- a switching element for supplying a current provided in each of the plurality of pixels, the switching element includes:
- a discharge gas;
- a first electrode and a second electrode that generate discharge between them;
- and
- a third electrode that controls the discharge occurring between the first electrode and the second electrode;
- wherein
- the third electrode is exposed to the discharge gas;
- a scanning line electrically connected to one of the first and second electrodes of the switching element;
- a signal line electrically connected to the third electrode of the switching element;
- a pixel electrode electrically connected to the other of the first and second electrodes of the switching element;
- a counter electrode opposed to the pixel electrode;
- and
- a display medium layer provided between the pixel electrode and the counter electrode.
11 more elements
A display device comprising:
- a plurality of pixels arranged in a matrix;
- a switching element for supplying a current provided in each of the plurality of pixels, the switching element includes:
- a discharge gas;
- a first electrode and a second electrode that generate discharge between them;
- and
- a third electrode that controls the discharge occurring between the first electrode and the second electrode;
- wherein
- the third electrode is exposed to the discharge gas;
- a scanning line electrically connected to the third electrode of the switching element;
- a signal line electrically connected to one of the first and second electrodes of the switching element;
- a pixel electrode electrically connected to the other of the first and second electrodes of the switching element;
- a counter electrode opposed to the pixel electrode;
- and
- a display medium layer provided between the pixel electrode and the counter electrode.
11 more elements
A display device comprising:
- a plurality of pixels arranged in a matrix;
- a switching element for supplying a current provided in each of the plurality of pixels, the switching element includes:
- a discharge gas;
- a first electrode and a second electrode provided apart from each other so as to run a discharge current between them;
- and
- a third electrode configured to be capable of changing the difference in potential from at least one of the first and second electrodes, and of controlling the magnitude of the discharge current running between the first and second electrodes by changing the potential difference;
- wherein
- the third electrode is exposed to the discharge gas;
- a scanning line electrically connected to one of the first and second electrodes of the switching element;
- a signal line electrically connected to the third electrode of the switching element;
- a pixel electrode electrically connected to the other of the first and second electrodes of the switching element;
- a counter electrode opposed to the pixel electrode;
- and
- a display medium layer provided between the pixel electrode and the counter electrode.
11 more elements
A display device comprising:
- a plurality of pixels arranged in a matrix;
- a switching element for supplying a current provided in each of the plurality of pixels, the switching element includes:
- a discharge gas;
- a first electrode and a second electrode provided apart from each other so as to run a discharge current between them;
- and
- a third electrode configured to be capable of changing the difference in potential from at least one of the first and second electrodes, and of controlling the magnitude of the discharge current running between the first and second electrodes by changing the potential difference;
- wherein
- the third electrode is exposed to the discharge gas;
- a scanning line electrically connected to the third electrode of the switching element;
- a signal line electrically connected to one of the first and second electrodes of the switching element;
- a pixel electrode electrically connected to the other of the first and second electrodes of the switching element;
- a counter electrode opposed to the pixel electrode;
- and
- a display medium layer provided between the pixel electrode and the counter electrode.
11 more elements
A display device comprising:
- a plurality of pixels arranged in a matrix;
- a switching element for supplying a current provided in each of the plurality of pixels, the switching element includes:
- a discharge gas;
- a first electrode and a second electrode provided apart from each other so as to run a discharge current between them;
- and
- a third electrode configured to be capable of changing the difference in potential from at least one of the first and second electrodes, and of controlling the magnitude of a discharge current running between the first and second electrodes by changing the potential difference;
- wherein
- a discharge gas is provided between the first electrode and the second electrode and between one of the first and second electrodes and the third electrode;
- the pressure of the discharge gas is set so that a starting voltage of discharge between the one of the first and second electrodes and the third voltage is higher than that between the first electrode and the second electrode;
- and
- the third electrode is exposed to the discharge gas;
- a scanning line electrically connected to one of the first and second electrodes of the switching element;
- a signal line electrically connected to the third electrode of the switching element;
- a pixel electrode electrically connected to the other of the first and second electrodes of the switching element;
- a counter electrode opposed to the pixel electrode;
- and
- a display medium layer provided between the pixel electrode and the counter electrode.
14 more elements
A display device comprising:
- a plurality of pixels arranged in a matrix;
- a switching element for supplying a current each provided in each of the plurality of pixels, the switching element includes:
- a discharge gas;
- a first electrode and a second electrode provided apart from each other so as to run a discharge current between them;
- and
- a third electrode configured to be capable of changing the difference in potential from at least one of the first and second electrodes, and of controlling the magnitude of a discharge current running between the first and second electrodes by changing the potential difference;
- wherein
- a discharge gas is provided between the first electrode and the second electrode and between one of the first and second electrodes and the third electrode;
- the pressure of the discharge gas is set so that a starting voltage of discharge between the one of the first and second electrodes and the third voltage is higher than that between the first electrode and the second electrode;
- and
- the third electrode is exposed to the discharge gas;
- a scanning line electrically connected to the third electrode of the switching element;
- a signal line electrically connected to one of the first and second electrodes of the switching element;
- a pixel electrode electrically connected to the other of the first and second electrodes of the switching element;
- a counter electrode opposed to the pixel electrode;
- and
- a display medium layer provided between the pixel electrode and the counter electrode.
14 more elements
A display device comprising:
- a plurality of pixels arranged in a matrix;
- a switching element for supplying a current provided in each of the plurality of pixels, the switching element includes:
- a discharge gas;
- a first electrode and a second electrode provided apart from each other so as to run a discharge current between them;
- and
- a third electrode configured to be capable of changing the difference in potential from at least one of the first and second electrodes;
- wherein
- a discharge gas is provided between the first electrode and the second electrode and between one of the first and second electrodes and the third electrode;
- the third electrode varies a distribution of equipotential surfaces attributed to discharge occurring between the first electrode and the second electrode;
- and
- the third electrode is exposed to the discharge gas;
- a scanning line electrically connected to one of the first and second electrodes of the switching element;
- a signal line electrically connected to the third electrode of the switching element;
- a pixel electrode electrically connected to the other of the first and second electrodes of the switching element;
- a counter electrode opposed to the pixel electrode;
- and
- a display medium layer provided between the pixel electrode and the counter electrode.
14 more elements
A display device comprising:
- a plurality of pixels arranged in a matrix;
- a switching element for supplying a current provided in each of the plurality of pixels, the switching element includes:
- a discharge gas;
- a first electrode and a second electrode provided apart from each other so as to run a discharge current between them;
- and
- a third electrode configured to be capable of changing the difference in potential from at least one of the first and second electrodes;
- wherein
- a discharge gas is provided between the first electrode and the second electrode and between one of the first and second electrodes and the third electrode;
- the third electrode varies a distribution of equipotential surfaces attributed to discharge occurring between the first electrode and the second electrode;
- and
- the third electrode is exposed to the discharge gas;
- a scanning line electrically connected to the third electrode of the switching element;
- a signal line electrically connected to one of the first and second electrodes of the switching element;
- a pixel electrode electrically connected to the other of the first and second electrodes of the switching element;
- a counter electrode opposed to the pixel electrode;
- and
- a display medium layer provided between the pixel electrode and the counter electrode.
14 more elements
Dependencies are inferred from the claim text.