Eco‐friendly and low‐cost cellulose nanofiber paper (nanopaper) is a promising candidate as a novel substrate for flexible electron device applications. Here, a thin transparent nanopaper‐based high‐mobility organic thin‐film transistor (OTFT) array is demonstrated for the first time. Nanopaper made from only native wood cellulose nanofibers has excellent thermal stability (>180 °C) and chemical durability, and a low coefficient of thermal expansion (CTE: 5–10 ppm K‐1). These features make it possible to build an OTFT array on nanopaper using a similar process to that for an array on conventional glass. A short‐channel bottom‐contact OTFT is successfully fabricated on the nanopaper by a lithographic and solution‐based process. Owing to the smoothness of the cast‐coated nanopaper surface, a solution processed organic semiconductor film on the nanopaper comprises large crystalline domains with a size of approximately 50–100 μm, and the corresponding TFT exhibits a high hole mobility of up to 1 cm2V‐1 s‐1 and a small hysteresis of below 0.1 V under ambient conditions. The nanopaper‐based OTFT also had excellent flexibility and can be formed into an arbitrary shape. These combined technologies of low‐cost and eco‐friendly paper substrates and solution‐based organic TFTs are promising for use in future flexible electronics application such as flexible displays and sensors.

Deterioration of moving picture quality due to hold-type displays is investigated with simulations using a special CRT. Two methods to improve moving picture quality are proposed and evaluated.

Active matrix organic-light-emitting-diode (AM OLED) panels, driven by organic thin-film transistors (OTFT), have been successfully fabricated on a flexible plastic substrate. The pixel circuit consists of two bottom-contact pentacene OTFTs working as switching and driving transistors. The panel has 16 × 16 pixels, each of which have an OLED using a phosphorescent material with an emission efficiency of 30 cd/A. A tantalum oxide (Ta 2 O 5 ) film with a dielectric constant of 24, prepared by the anodization of Tantalum (Ta), was used as the gate insulator of the OTFTs. The passivation layer on the OTFTs was formed by a layer of silicon dioxide (SiO 2 ) and two layers of polyvinyl alcohol. Using OTFTs with a Ta 2 O 5 gate insulator, the authors have realized a flexible active matrix OLED panel driven with a low voltage of −12 V. Index Terms-Flexible, organic light emitting diode (OLED), organic thin-film transistor (OTFT), plastic.

Moving Picture Response Time (MPRT) measurement method has discussed with several companies since 2001. The basic MPRT is designed to represent and quantify the visual perception of moving images across an AM‐LCD screen for PC monitor and TV applications. MPRT measurement method takes into account three basic LCD panel characteristics: the capacitive‐hold‐type brightness variations, brightness level dependent transition times and a liquid crystal response time including gray scales transition. This measurement system incorporates the synchronously moving some combined gray scale test patterns and the evaluation of the pattern edge brightness changes. MPRT keyword is for only liquid crystal display. But this measurement method can be used to specify new index parameter that is motion blur characteristics on each display devices (PDP, CRT and etc).

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