scholarly journals Multi-Touch Interaction Generation Device by Spatiotemporally Switching Electrodes

Electronics ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1475
Author(s):  
Masahiro Okamoto ◽  
Kazuya Murao
Keyword(s):  
High Speed ◽  
High Accuracy ◽  
Conductive Ink ◽  
Control Board ◽  
Touch Panel ◽  
Electrode Size ◽  
Touch Input ◽  
Touch Interaction ◽  
Multiple Electrodes ◽  
Touch Panels

With the spread of devices equipped with touch panels, such as smartphones, tablets, and laptops, the opportunity for users to perform touch interaction has increased. In this paper, we constructed a device that generates multi-touch interactions to realize high-speed, continuous, or hands-free touch input on a touch panel. The proposed device consists of an electrode sheet printed with multiple electrodes using conductive ink and a voltage control board, and generates eight multi-touch interactions: tap, double-tap, long-press, press-and-tap, swipe, pinch-in, pinch-out, and rotation, by changing the capacitance of the touch panel in time and space. In preliminary experiments, we investigated the appropriate electrode size and spacing for generating multi-touch interactions, and then implemented the device. From the evaluation experiments, it was confirmed that the proposed device can generate multi-touch interactions with high accuracy. As a result, tap, press-and-tap, swipe, pinch-in, pinch-out, and rotation can be generated with a success rate of 100%. It was confirmed that all the multi-touch interactions evaluated by the proposed device could be generated with high accuracy and acceptable speed.

High-Speed and High-Accuracy Volume Holographic Optical Correlator

2014 ◽  
Vol 41 (2) ◽  
pp. 0209005
Author(s):  
易瑶 Yi Yao ◽  
曹良才 Cao Liangcai ◽  
郑天祥 Zheng Tianxiang ◽  
赵瑱 Zhao Tian ◽  
何庆声 He Qingsheng ◽  
...  
Keyword(s):  
High Speed ◽  
High Accuracy ◽  
Optical Correlator

scholarly journals Contamination Improvement of Touch Panel and Color Filter Production Processes of Lean Six Sigma

2019 ◽  
Vol 9 (9) ◽  
pp. 1893 ◽  
Author(s):  
Chia-Nan Wang ◽  
Po-Chih Chiu ◽  
I-Fang Cheng ◽  
Ying-Fang Huang
Keyword(s):  
Six Sigma ◽  
Lean Six Sigma ◽  
Color Filter ◽  
Improvement Rate ◽  
Touch Panel ◽  
Touch Sensor ◽  
Average Defect ◽  
Component Manufacturing ◽  
One Year ◽  
Touch Panels

Color filter (CF) and touch panel (or touch sensor (TS)) are important components for optoelectronic materials and component manufacturing. Due to the cut-throat world of market in the manufacturing, the processes of color filters are similar to touch sensors. The case invested in the production of touch panels in 2009. After a long period of quality improvement, the problem of contamination pollution still accounts for ~30% of the total variation. In addition to the external problem, there is also the fail of communication caused by dirt or peeling. Therefore, the case was established to improve the dirt defect by setting up Lean Six Sigma project, and the project goal was to reduce the proportion to 0.18%. After three months of improvement and three months of continuous observation, the abnormal proportion of pollution decreased from 0.35% of the overall average defect loss to 0.13% (the improvement rate reached 63%). It is estimated that the entire product can generate 3 million (USD) of performance for the case in one year. It is also possible to increase the customer’s satisfaction and the company’s technical competitiveness by improving yield and achieving the continuous improvement of objectives.

A high-speed additive manufacturing approach for achieving high printing speed and accuracy

2019 ◽  
Vol 234 (14) ◽  
pp. 2741-2749 ◽  
Author(s):  
Aamer Nazir ◽  
Jeng-Ywan Jeng
Keyword(s):  
Additive Manufacturing ◽  
Material Property ◽  
High Speed ◽  
Selective Laser Sintering ◽  
High Accuracy ◽  
Digital Manufacturing ◽  
Functional Material ◽  
Direct Digital Manufacturing ◽  
Manufacturing Technologies ◽  
Printing Speed

The primary concern of the Industry 4.0 is the direct digital manufacturing of customized products on demand at high production speed, high accuracy with functional material property. Although the unique capabilities of existing additive manufacturing technologies make it suitable for direct digital manufacturing, there are numerous limitations which include low printing speed, less accuracy and repeatability, and a limited selection of materials for a particular application. Therefore, a high-speed additive manufacturing approach is proposed in this paper, that is capable of achieving high speed of production, high accuracy, and surface finish, and functional material property. For better understanding, authors describe those additive manufacturing technologies that are capable of achieving the aforementioned characteristics. For validation, samples of various dimensions were 3D printed on a selective laser sintering and a high-speed multijet fusion 3D printer. The results were compared in the context of printing speed, surface roughness (Ra), and hardness of printed parts. Results revealed that the multijet fusion process is significantly faster than its counterpart while sacrificing Ra to some extent but the hardness of printed parts is not changed significantly. The selective laser sintering-printed samples had a 15% lower Ra compared with multijet fusion samples. The results also revealed that the multijet fusion process might be able to print composite/multi-materials; however, more research needs to be done.

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