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Large Size In-Cell Capacitive Touch Panel and Force Touch Development for Automotive Displays
Naoki TAKADA Chihiro TANAKA Toshihiko TANAKA Yuto KAKINOKI Takayuki NAKANISHI Naoshi GOTO
Publication
IEICE TRANSACTIONS on Electronics
Vol.E102-C
No.11
pp.795-801 Publication Date: 2019/11/01 Online ISSN: 1745-1353
DOI: 10.1587/transele.2019DII0005 Type of Manuscript: Special Section INVITED PAPER (Special Section on Electronic Displays) Category: Keyword: in-cell touch panel, low-temperature polysilicon TFT,
Full Text: FreePDF(2.7MB)
Summary:
We have developed the world's largest 16.7-inch hybrid in-cell touch panel. To realize the large sized in-cell touch panel, we applied a vertical Vcom system and low resistance sensor, which are JDI's original technologies. For glove touch function, we applied mutual bundled driving, which increases the signal intensity higher. The panel also has a low surface reflection, curved-shaped, and non-rectangular characteristics, which are particular requirements in the automotive market. The over 15-inch hybrid in-cell touch panel adheres to automotive quality requirements. We have also developed a force touch panel, which is a new human machine interface (HMI) based on a hybrid in-cell touch panel in automotive display. This study reports on the effect of the improvements on the in-plane variation of force touch and the value change of the force signal under different environment conditions. We also a introduce force touch implemented prototype.
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