A compact 4T1M2C AMOLED pixel circuit with multimodal drive transistor
Year: 2024
Type: article
Abstract: We propose a 5-transistor, 2-capacitor (5T2C) AMOLED pixel circuit using a multimodal transistor (MMT) as driver, which may be more appropriately referred to as 4T1M2C to reflect the inclusion of a device which is distinctly different from conventional Ohmic-contact thin-film transistors (TFTs). The MMT is a type of contact-controlled transistor, here implemented with a Schottky source. Its gating mechanisms separate ‘analog' charge injection, controlled by the source contact, from ‘digital' channel conductance switching. The mixed-signal operation of the MMT allows it to perform the function of multiple conventional transistors in a power- and area-efficient manner, enabling pixel circuit design to achieve superior image uniformity and energy efficiency, due to the combination of threshold compensation scheme and inherent saturation properties of the MMT drive transistor.
Source: Journal of Information Display
Authors: Eva Bestelink, Radu A. Sporea
Institution: University of Surrey
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,134
OpenAlex ID: W4405826641