Systems and methods for aging compensation in AMOLED displays
G Chaji - US Patent 9,773,439, 2017 - Google Patents
(74) Attorney, Agent, or Firm—Nixon Peabody LLP (57) ABSTRACT Circuits for
programming, monitoring, and driving pixels in a display are provided. Circuits generally …
programming, monitoring, and driving pixels in a display are provided. Circuits generally …
Lifetime uniformity parameter extraction methods
(57) ABSTRACT A system and method for deriving a sequence of OLED non-uniformity test
patterns. A pattern generator generates a full sequence of display patterns according to a …
patterns. A pattern generator generates a full sequence of display patterns according to a …
Organic light emitting diode display device for sensing pixel current and pixel current sensing method thereof
JE Lee, BS Kim, ST Kim, WK Ha, KH Oh - US Patent 9,035,976, 2015 - Google Patents
The present invention relates to an organic light emitting diode display device capable of
sensing driving current of each pixel with a simple configuration to compensate for a …
sensing driving current of each pixel with a simple configuration to compensate for a …
Driving circuit for current programmed organic light-emitting diode displays
A Nathan, G Chaji - US Patent 10,078,984, 2018 - Google Patents
ABSTRACT A load driving circuit for a load having a parasitic capaci tance associated
therewith is provided. The load being current programmed. The driving circuit has a data line …
therewith is provided. The load being current programmed. The driving circuit has a data line …
High resolution pixel architecture
G Chaji, V Gupta, A Nathan - US Patent 8,803,417, 2014 - Google Patents
(57) ABSTRACT A pixel structure comprises a substantially transparent sub strate, a drive
transistor formed on the Substrate, an organic light emitting device formed on the opposite …
transistor formed on the Substrate, an organic light emitting device formed on the opposite …
Adaptive feedback system for compensating for aging pixel areas with enhanced estimation speed
J Jaffari, G Chaji, A Heidari - US Patent 9,466,240, 2016 - Google Patents
(57) ABSTRACT A local priority-based scanning scheme that focuses scan ning to areas of a
display panel whose measured character istics are under continuous change (eg, aging or …
display panel whose measured character istics are under continuous change (eg, aging or …
System and methods for power conservation for amoled pixel drivers
G Chaji, J Soni - US Patent 9,262,965, 2016 - Google Patents
3,774,055 4,090,096 4, 160,934 4,354,162 4,943,956 4,996,523 5,134,387 5,153,420
5,170,158 5, 198,803 5,204,661 5,266,515 5,278,542 5,408,267 5,489,918 5,498,880 …
5,170,158 5, 198,803 5,204,661 5,266,515 5,278,542 5,408,267 5,489,918 5,498,880 …
System and methods for extracting correlation curves for an organic light emitting device
(57) ABSTRACT A system and method for determining and applying charac terization
correlation curves for aging effects on an organic light organic light emitting device (OLED) …
correlation curves for aging effects on an organic light organic light emitting device (OLED) …
Amoled displays with multiple readout circuits
J Soni, RYH Ngan, G Chaji, N Zahirovic… - US Patent …, 2016 - Google Patents
5, 198,803 5,204,661 5,266,515 5,489,918 5,498,880 5,557,342 5,572,444 5,589,847
5,619,033 5,648,276 5,670,973 5,691.783 5,714,968 5,723.950 5,744,824 5,745,660 …
5,619,033 5,648,276 5,670,973 5,691.783 5,714,968 5,723.950 5,744,824 5,745,660 …
Charged-based compensation and parameter extraction in AMOLED displays
G Chaji - US Patent 9,530,349, 2016 - Google Patents
Provisional application No. 61/869,327, filed on Aug. 23, 2013, provisional application No.
61/859,963, filed on Jul. 30, 2013, provisional application No. 61/912,352, filed on Dec. 5 …
61/859,963, filed on Jul. 30, 2013, provisional application No. 61/912,352, filed on Dec. 5 …