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 …

Pixel driver circuit with load-balance in current mirror circuit

A Nathan, KV Sakariya, P Servati… - US Patent …, 2013 - Google Patents
(57) ABSTRACT A pixel circuit for use in a display comprising a plurality of pixels is
provided. The load-balanced current mirror pixel circuit can compensate for device …

Lifetime uniformity parameter extraction methods

G Chaji, J Jaffari, A Nathan - US Patent 8,994,617, 2015 - Google Patents
(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 …

Circuitry for independent gamma adjustment points

KV Sakariya - US Patent 8,854,294, 2014 - Google Patents
BACKGROUND The present disclosure relates generally to electronic dis plays and, more
particularly, to gamma adjustment tech niques for Such displays. This section is intended to …

Method and system for programming, calibrating and driving a light emitting device display

A Nathan, GR Chaji, P Servati - US Patent 8,259,044, 2012 - Google Patents
US8259044B2 - Method and system for programming, calibrating and driving a light
emitting device display - Google Patents US8259044B2 - Method and system for …

Method and system for programming, calibrating and driving a light emitting device display

A Nathan, GR Chaji, P Servati - US Patent 8,736,524, 2014 - Google Patents
5,870,071 A 2f1999 Kawahata 7,569,849 B2 8, 2009 Nathan et al. 5,903,248 A 5, 1999 Irwin
7,619,594 B2 11/2009 Hu 5,949,398 A 9, 1999 Kim 7,619,597 B2 11/2009 Nathan et al …

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 …

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 …

Systems and methods for operating pixels in a display to mitigate image flicker

G Chaji, JCS Lai, Y Azizi, MR Ma - US Patent 9,881,587, 2018 - Google Patents
Circuits for programming a circuit with decreased program ming time are provided. Such
circuits include a storage device such as a capacitor for storing display information and for …

System and method for fast compensation programming of pixels in a display

G Chaji, JCS Lai, Y Azizi, MR Ma, A Nathan - US Patent 9,370,075, 2016 - Google Patents
Provisional application No. 61/491,165, filed on May Circuits for programming a circuit with
decreased program 28, 2011, provisional application No. 61/600,316, ming time are …