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Selasa, 17 April 2018 08:21:00

TANAKA Confirms Improvement in Bending Durability of Flexible Touch Panels With Single-Sided, Dual-Layer Wiring Structure Metal Mesh Film

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New technology is expected to enhance image quality, reduce thickness, increase flexibility, and improve durability of smart phone touch panels and other products
 
TOKYO, Apr 17, 2018 - (ACN Newswire) - Tanaka Holdings Co., Ltd. (Head office: Chiyoda-ku, Tokyo; Representative Director & CEO: Akira Tanae) announced today that Tanaka Kikinzoku Kogyo K.K. (Head office: Chiyoda-ku, Tokyo; Representative Director and CEO: Akira Tanae), which operates the Tanaka Precious Metals manufacturing business, discovered a single-sided, dual-layer wiring structure for metal meshes[1] used in touch sensors and a method of manufacturing the structure and has commenced development for commercial application. 
 
This technology will contribute to higher image quality, thinner devices, increased flexibility, and improved durability of smart phone touch panels and other applications.
 
Touch panels normally have a structure made from two sensor substrates - an X sensor substrate and a Y sensor substrate. Tanaka Kikinzoku Kogyo discovered a technique for forming both the X sensor and Y sensor wiring on a single layer flexible substrate. 
 
The discovery was based on the results of research conducted by Professor Tatsuo Hasegawa, Principal Research Manager at the Flexible Electronics Research Center of the National Institute of Advanced Industrial Science and Technology. 
 
Development was consigned to Tanaka Kikinzoku Kogyo under the Joint Industry-Academia Practical Application Development Project (NexTEP). The discovery was made by applying the metal mesh wiring technology developed under consignment from April 2014 to September 2017 and forming overlapping silver nano-ink wire circuity on one side of the film (creating a single-sided, dual-layer metal mesh film). 
 
As a result, only one sensor substrate is needed. This will contribute to reducing costs as well as improving touch panel image quality and making panels slimmer. 
 
Tanaka Kikinzoku Kogyo also discovered a transparent (conducting) electrode formed by etching[2] indium tin oxide (ITO), which is commonly used in current touch panel sensors, on a glass substrate and created a structure expected to improve bending strength (increased flexibility) that even metal mesh films cannot withstand as well as a method of manufacturing this structure. (ACNN).
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