Display device using electron source elements and method of driving same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 9, 2004
Grant Date -
Jan 16, 2003
app pub date -
Jul 10, 2002
filing date -
Jul 12, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In the case where the number of pixels is increased in a display device making use of electron source elements, a period, in which one pixel is caused to continue to emit light, shortened, and so there is caused a need of applying a high voltage between upper and lower electrodes of an electron source element in a short period. Therefore, there is caused a problem that a drive circuit is made severe in operating condition and so the display device is degraded in reliability. Two TFTs are arranged on each of pixels. Also, a time gradation system is used, in which one frame period is divided into a plurality of sub-frame periods, a light emitting or non-emitting state of each of the pixels is selected in the respective sub-frame periods, and gradation is represented by adding up periods, in which the light emitting state is selected in the respective sub-frame periods. Thus it is possible to provide a display device having a high reliability and a method of driving the same.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully