Flexible Active Matrix Addressed Displays Manufactured by Screen Printing

Abstract

A flexible, electrochromic, active matrix addressed display (AMAD) is demonstrated. The monolithically integrated AMAD, which contains a 3 × 3 array of organic electrochromic smart pixels (OESPs), is manufactured on a plastic substrate solely using screen printing. Each OESP is based on the combination of one organic electrochromic display (OECD) and one organic electrochemical transistor (OECT), where both devices are screen printed into multilayered vertical architectures. The conduction state of the OECT enables control of the color state of its corresponding OECD, thereby circumventing cross‐talk effects in the resulting AMAD device. The manufacturing approach also involves electrical wires, which connect each OECD with its corresponding OECT and also serve as the addressing lines of the resulting AMAD device, that are formed by screen printing of an ink based on either silver or nanocopper.

Designing Inverters Based on Screen Printed Organic Electrochemical Transistors Targeting Low‐Voltage and High‐Frequency Operation

“…Organic electronics comprises different classes of electronics such as printed electronics, [2][3][4] wearable electronics, [5,6] bioelectronics, [7][8][9] stretchable electronics, [10] which enable electronic applications toward large-area [4] and unconventional form factors of electronic devices [11][12][13][14][15] manufactured on a variety of substrates and carriers. [16,17] Organic electrochemical transistors (OECTs), [16,[18][19][20][21][22][23][24][25][26][27] is currently one of the most studied organic electronic devices and is explored in various applications, such as in fully printed logic circuits, [16,26] active matrix addressed displays, [17] display driver circuits, [19] sensors, [22,23,[28][29][30][31][32][33] neuromorphics, [24] just to name a few. OECTs can be manufactured via costeffective protocols using different printing techniques, such as screen printing, [19,21] 3D printing, [30] inkjet printin...…”

“…Organic electronics comprises different classes of electronics such as printed electronics, [ 2–4 ] wearable electronics, [ 5,6 ] bioelectronics, [ 7–9 ] stretchable electronics, [ 10 ] which enable electronic applications toward large‐area [ 4 ] and unconventional form factors of electronic devices [ 11–15 ] manufactured on a variety of substrates and carriers. [ 16,17 ]…”

“…Organic electrochemical transistors (OECTs), [ 16,18–27 ] is currently one of the most studied organic electronic devices and is explored in various applications, such as in fully printed logic circuits, [ 16,26 ] active matrix addressed displays, [ 17 ] display driver circuits, [ 19 ] sensors, [ 22,23,28–33 ] neuromorphics, [ 24 ] just to name a few. OECTs can be manufactured via cost‐effective protocols using different printing techniques, such as screen printing, [ 19,21 ] 3D printing, [ 30 ] inkjet printing, [ 34 ] and other processes.…”

Tunable Reverse Offset Printing with a Stretchable Blanket for Fabricating Flexible Printed Electronics

“…Printed electronics is considered a set of rapid and eco-friendly processes used to fabricate electronic devices such as thin-film transistors, [1][2][3][4][5] wireless radio frequency identification tags, [6][7][8] flexible displays, [9][10][11][12] solar cell, [13] electronic paper, [14] strain sensor, [15,16] and temperature sensors. [17][18][19] Among the various techniques such as inkjet printing, [20][21][22][23][24][25][26] screening printing, [27][28][29] and flexographic printing, [30][31][32][33] the reverse offset printing (ROP) method is able to print fine pattern with a minimum achievable resolution of 0.5-5 μm. [34,35] ROP has been currently extensively developed for inks, offset materials, processes, machinery, and applications mainly in academia and industries.…”

Batteryless Electronic System Printed on Glass Substrate

“…Many other kinds of electronic conductors [13], components and systems will evolve in the future, either by implementation directly onto glass substrates or by laminating the printed electronics between glass sheets. Examples of such printed electronic components include solar cells [14], displays [15] and transistors [16], the first two of which also require the transparency of the substrate. Another feasible application, also taking advantage of the barrier properties of glass, would be to add electronic functionalities on both sides of the glass sheet.…”