Set up a new generation of touch chips to achieve four technological innovations, aiming at three major fashion applications
ChipOne Technology (Beijing) Co., Ltd. (hereinafter referred to as JiChuang), a chip design company specializing in flat display technology, officially announced the launch of a new touch chip solution with independent intellectual property rights - ICN85 series touch chip, which supports a variety of terminal full-size screens such as smart phones, tablets and ultrabooks, supports Add-on and In-Cell modules, can meet the needs of users anytime, anywhere, and can Precise in a complex application environment.
The ICN85 series of touch chips is a strategic product that has been launched into the touch market by the North after the ICN83 series, which has been certified by the major platforms in the market and mass-produced in large quantities. Based on the experience and technology accumulated in the ICN83 series, the ICN85 series adheres to the "customer experience as the core" design idea, and has achieved remarkable innovation in noise suppression, frequency hopping mode, algorithm and power consumption, and the processing performance is very high. The same kind of touch chip widely used in China ideally meets the needs of users in waterproof, floating, wearing gloves, proximity sensing and extreme temperature difference. It perfectly supports ultra-sensitive, simple gestures and wearable three fashion applications.
Supports ultra-sensitive touch applications, which support touch applications with gloves, passive pens, keys, knives and other metal objects. The ICN85 series uses its own innovative technology to further reduce the noise floor of the touch screen. It can support ultra-fine passive pens, making the touch operation more in line with human handwriting habits.
Based on the intelligent gesture recognition algorithm developed by Jiu Chuang for a long time, ICN85 also fully supports the popular simple gesture application of smart terminal devices on the market - using simple gestures to directly enter the corresponding application on the screen (such as drawing a "C in the standby interface" "You can directly enter the camera application." Abandon the original cumbersome operation process, the success rate of gesture recognition is higher than 98%.
In addition, the ICN85 series of touch chips support the hottest wearable applications on the market, and the curved TP allows for a more casual wear design. At the same time, the high signal-to-noise ratio (SNR) and the algorithm designed for the arc surface ensure that the precise coordinates (center coordinate deviation ≤ 1mm) can still be calculated when the contact area of ​​the finger is constantly changing when touched on the arc surface.
Figure 1: ICN85 series supports ultra-sensitive, simple gestures, wearable three fashion applications
The ICN85 series adopts a mutual capacitance + self-capacitance architecture, which can support up to 56 channels, and is equipped with a 32-bit MCU and DSP. Its digital processing capability is equivalent to 20 times the single 8-bit/near-fold double 8-bit MCU. The ICN85 series of touch chips use an innovative sine wave operation mode to improve the signal-to-noise ratio and detection efficiency, and can obviously "resist" channel noise. Under the same module conditions, the user experience of the ICN85 series is better.
In order to cope with the thorny problems such as charger interference, LCM, RF interference, etc., ICN85 series touch chip adopts unique narrow-band filter technology, 1KHz ultra-fine controllable driving frequency, which greatly improves the chip's interference suppression ability and reaches the international first-line brand. The level of products, overall performance and customer experience are superior to domestic mainstream competitors.
At the same time, ICN85 realizes the independent setting of the signal gain of each TX/RX crosspoint under the high-impedance TP module. This innovation combines the powerful algorithm of the self-developed research to better solve the TP consistency brought by the large impedance. Problems and can improve TP module yield. Achieve better touch performance with stable and reliable performance, and bring a good experience to users.
Figure 2: Block diagram of the ICT85 series touch chip architecture
The ICN85 series comprehensively improves the chip signal-to-noise ratio (SNR) and differential signal analysis functions. It is based on mutual capacitance detection, supplemented by self-capacitance detection, which has excellent waterproof performance and effectively suppresses palm pressure and large area noise. Multi-point application under the In-cell module. The ICN85 series supports the current mainstream Add-On modules, including OGS, single-layer GF/GG mutual capacitance, G1F, GF2, GFF, and so on. The solution combines the three needs of ultra-thin, narrow-edge and low-cost, and will bring a cost-effective customer experience to terminals such as smartphones and tablets.
Figure 3: The ICN85 series uses self-integration technology to meet the needs of users in a variety of environments.
Main features of the ICN85 series:
l Support true 10-point touch, support 4.0 - 10.1" CTPM
l Built-in high performance 32-bit MCU + DSP
l Suitable for DITO/SITO/OGS CTPM modules
l Support LCM full fit
l Supported channels: up to 56 channels (supporting 16:9, 4:3 applications)
l Support COF/COB applications
l Support I2C/SPI interface
l High-reporting rate: 60~200Hz
l Effectively suppress RF and LCM interference, and stronger resistance to charger interference
l Mutual capacity + self-contained architecture for superior waterproof performance
l Support glove touch
l Proximity sensing function
About Ji Chuang
JiChuang North () is a chip design company specializing in flat display technology. Its products cover all kinds of drivers and touch chips, and its partners are well-known electronic companies at home and abroad. JiChuang North is one of the earliest companies to focus on touch IC applications. It is also the first domestic manufacturer to realize self-capacitance + mutual capacitance scheme. In the future, JiChuang North will provide customized services and complete solutions for customers with rich and comprehensive product lines. The program, together with an experienced team of engineers, will provide customers with high quality and efficient technical support.
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