Liquid crystal display device and inspecting method thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 5, 2007
Grant Date -
Jul 22, 2004
app pub date -
Jan 6, 2004
filing date -
Jan 21, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Output signals of two adjacent data signal lines DA1 to DAn and DB1 to DBn are supplied to comparators CMP1 to CMPn, respectively. When pixels are inspected, different signal potentials are input to signal input terminals 14a and 14b. Signals are written to pixels from the first row to the last row. Thereafter, a pre-charging process is performed by supplying a voltage to the terminals 14a and 14b. Thereafter, signals are read from all the pixels from the first row to the last row. The signal potentials that have been read are compared by the comparators CMP1 to CMPn. Depending on the relations of voltages written as digitally-compared outputs of the comparators CMP1 to CMPn, defective pixels are detected.
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