Display device and drive method for same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11854478
APP PUB NO 20220215802A1
SERIAL NO

17609290

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Abstract

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The present application discloses a current-driven display device that can perform accurate external compensation in consideration of a temperature distribution in a display panel while preventing the configuration from being complicated. A display portion of an organic EL display device is provided with a plurality of temperature detection circuits in addition to pixel circuits arranged in a matrix. A data-side drive circuit measures a current flowing through a transistor in each temperature detection circuit. A display control circuit obtains a temperature from the measured value based on a temperature characteristic of the transistor, estimates a temperature of each pixel circuit from the temperature, corrects a current value measured at the time of characteristic detection for a drive transistor of each pixel circuit considering the estimated temperature, and updates correction data for compensating for variations in the threshold voltage and gain of the drive transistor based on the corrected current value.

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Patent Owner(s)

Patent OwnerAddress
SHARP KABUSHIKI KAISHAOSAKA-SHI OSAKA 545-8522

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Moriya, Masaaki Sakai, JP 38 106
Shiobara, Naoki Sakai, JP 23 36
Ueno, Masafumi Sakai, JP 59 407

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