Back to results
US 9,741,279 B2Granted
Display systems with compensation for line propagation delay
AssigneeIgnis Innovation Inc.
InventorsGholamreza Chaji, Yaser Azizi
Life of this patent
Estimating the term…
Abstract
A method for characterizing and eliminating the effect of propagation delay on data and monitor lines of AMOLED panels is introduced. A similar technique may be utilized to cancel the effect of incomplete settling of select lines that control the write and read switches of pixels on a row.
Claims18
A method of measuring a signal offset of signals on a signal line of a display system having a pixel circuit, the method comprising:
- generating a first signal from a first location on the signal line;
- measuring the first signal at a second location on the signal line upon expiry a first time duration sufficient to avoid settling effects, generating a first signal measurement;
- generating a second signal from the first location;
- measuring the second signal at the second location upon expiry of a second time duration insufficient to avoid settling effects, generating a second signal measurement;
- and
- comparing the first signal measurement with the second signal measurement to extract the signal offset.
3 more elements
A display comprising:
- a pixel circuit;
- a driver for programming the pixel circuit;
- a monitor for monitoring the pixel circuit;
- a signal line connecting the pixel circuit with at least one of the driver and the monitor;
- and
- a controller configured to control the pixel circuit, and the at least one of the driver and the monitor to:
- generate a first signal from a first location on the signal line;
- measure the first signal at a second location on the signal line upon expiry a first time duration sufficient to avoid settling effects, generating a first signal measurement;
- generate a second signal from the first location;
- and
- measure the second signal at the second location upon expiry of a second time duration insufficient to avoid settling effects, generating a second signal measurement,
- the controller configured to compare the first signal measurement with the second signal measurement to extract a signal offset of signals on the signal line.
9 more elements
Dependencies are inferred from the claim text.