Recent progress of flexible image sensors for biomedical applications

T Yokota, K Fukuda, T Someya - Advanced Materials, 2021 - Wiley Online Library
Flexible image sensors have attracted increasing attention as new imaging devices owing to
their lightness, softness, and bendability. Since light can measure inside information from …

Amorphous and polycrystalline photoconductors for direct conversion flat panel X-ray image sensors

S Kasap, JB Frey, G Belev, O Tousignant, H Mani… - Sensors, 2011 - mdpi.com
In the last ten to fifteen years there has been much research in using amorphous and
polycrystalline semiconductors as x-ray photoconductors in various x-ray image sensor …

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 …

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 …

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 …

Scintillation event imaging with a single photon avalanche diode camera

A Bocchieri, E Charbon, A Velten - Communications Engineering, 2024 - nature.com
Position and time measurements of scintillation events encode information about the
radiation source. Single photon avalanche diode (SPAD) arrays offer multiple-megapixel …

Investigation of hole-blocking contacts for high-conversion-gain amorphous selenium detectors for x-ray imaging

S Abbaszadeh, N Allec… - IEEE transactions on …, 2012 - ieeexplore.ieee.org
In this paper, we investigated different organic and inorganic hole-blocking contacts for
amorphous selenium (a-Se)-based photodetectors: CeO_2, TiO_2, perylene tetracarboxylic …