A flexible, lightweight braille sheet display with plastic actuators driven by an organic field-effect transistor active matrix

An Organic FET SRAM With Back Gate to Increase Static Noise Margin and Its Application to Braille Sheet Display

“…5 shows a micrograph of the five-transistor SRAM cell. The cell area is 3.7 mm by 2.0 mm, which fits into the 4.0-mm-by-2.0-mm cell size for the stacked one actuator and the two driver transistors [11]. The whole cell is covered with the common back gate and each SRAM cell has the separate back gate.…”

“…In this paper, an integrated system of OFETs and actuators is proposed, and a Braille sheet display is demonstrated [11], [12], which shows a new application of the large-area electronics using OFETs. Device and process technology of the OFETs and the plastic actuators are shown in [11] and this paper focuses on circuit technology [12].…”

“…The usability of the conventional Braille display, however, is limited due to its weight ( 1.0 kg) and thickness ( 4 cm). The developed lightweight ( 5 g [11]) and flexible Braille sheet display expands the application of the Braille. The developed Braille sheet display has an actuator array.…”

“…Device and process technology of the OFETs and the plastic actuators are shown in [11] and this paper focuses on circuit technology [12]. A commercially available Braille display uses piezo actuators and displays 16 Braille characters.…”

Design of large area electronics with organic transistors

“…An EMI measurement sheet [8][9] is a sheet supporting an array of silicon VLSI circuits and OFETs. A Braille display [10][11][12][13] is a sheet integrating an array of plastic actuators and OFETs. A wireless power transmission sheet [14][15] and a communication sheet [16][17][18][19] combine on foil an array of coils, plastic MEMS switches, and OFETs.…”