The characteristics and advantages of the mainstream touch-control IC Manufacturers

Have you noticed that the constant innovation of technology changes the way people communicate and consume, and makes them more portable, more diversified and more high-tech. The innovation of technology has the mutual promotion function with people's interactive way. Apple and other high-end smartphones, tablet computer sales, led to the development of the touch-screen market. The intelligent mobile terminal gradually spreads to the middle and low-end market. China's major manufacturers such as Huawei and other giants have been to seize the low-end smart phones this large capacity of the market. Industry estimates that from 2010 to 2013, mobile phone touch screen demand for composite growth rate will reach 22%, from the current 531 million to 965 million in 2013.

The application of touch technology has also been in-depth to mobile phones, tablets, cameras, televisions, game consoles, personal navigation equipment, advertising machines and other products, the diversification of the application market also requires touch-controlled technology more flexible and changeable. Because the main role of touch technology is to improve the user experience by simplifying human-computer interaction, the demand of application market is the main foundation of the related technology for touch IC manufacturers.

The characteristics and advantages of the mainstream touch-control IC Manufacturers

Recently, Texas Instruments (TI) announced the introduction of c5000™ ultra-low power Digital signal processor (DSP) of the audio capacitive touch Boosterpack, for the microprocessor application to implement a variety of new functions, support clear audio and playback and recording functions.

TI single-core processor marketing director Jon Beall pointed out: "TI will be the industry's lowest power consumption DSP and ultra-low power microcontroller perfect combination, for audio applications to achieve the minimum power consumption." In addition to the low power advantage, the real-time DSP performance added to the popular audio capacitive touch Boosterpack will be unlimited for microcontroller developers to help them make full use of advanced DSP technology without DSP programming. ”

The main characteristics and advantages of the audio capacitive touch boosterpack: c553x Ultra-low power DSP is the industry's lowest total power consumption DSP, the total power consumption under 1.05 V voltage is lower than that of 0.15 mw/mhz, which supports the coding and decoding of clear audio/voice MP3; MSP430G2452 microcontroller can provide 0.5 UA standby current and wake time less than 1us for various low-power applications. MSP430 microcontroller Capacitive Touch Interface helps users control volume, select tracks, record and playback audio files; Integrated LED display, high speed USB 2.0, and SD/MMC interface can enhance user experience; free capacitive Touch library supports capacitive touch buttons via MSP430 microcontroller Sliders, rollers, and proximity sensors, developers do not need to create complex touch sensing algorithm, the complete OLED user interface and MP3 recording/playback software library support, can simplify the development work.

"The ultimate goal of all features and benefits is to address critical issues and provide customers with an excellent touch experience." "said Jon Kiachian, vice president of Atmel Touch products marketing. Atmel technology solves the problem of screen and extreme charger noise, while maintaining excellent responsiveness and linearity. With the Atmel scheme, designers do not need to change the firmware to fit a particular display, charger or stack. "We have improved finger tracking, handling of suspended state, and more complex unconscious touch suppression." Jon Kiachian points out, "our program supports active and passive stylus for tablets and smartphones and is suitable for the latest mobile operating systems." "In addition, the Atmel scheme has the lowest power consumption in the industry. The above factors are also the reason why the Atmel touch solution can occupy 8 of the top 10 smart phone touch screens.

Han Rui Micro-touch IC for smartphones, tablets and other portable products applications, but also has its own product characteristics and advantages. Han Rui Micro PIXCIR technical manager Mendez all said, IC performance is stable, power saving, crossed effect is good, the rate is high, and can achieve more than 5-inch touch control products, touch and stroke control compatible.

And Taiwan Qualcomm Tai Ji Circuit Company [tontouch™] series of products, mainly used for capacitive touch touching pad, in the application of the above products for the Power On/off key or other function key, sliding or rotating size volume control.

The mainstream technology of touch-screen market--Projection capacitor

According to NPD DisplaySearch Research, projective capacitors (projected capacitive) and resistive (resistive) accounted for 40.6% and 56.7% of shipments in 2010 respectively. However, according to the results of the fourth quarter of 2011, in the mobile phone and tablet computer import and vigorous shipments of injection, the 2011 projection capacitor in both shipments and revenue has exceeded the resistance, become consumer electronic products touch technology mainstream. For example: 2010 mobile Phone Resistive Touch module shipments of about 240 million a year, but according to the fourth quarter of 2011 report statistics, for those surveyed the key manufacturers of the total estimated shipments of about 130 million pieces; This shows that the resistive trend of recession seems to be a foregone conclusion.

The mainstream technology of touch screen market is now transition from resistor to capacitance type, the projector capacitor is the mainstream technology of touch screen at present, and it is diversified in structure. So, how to adapt to market changes to planning development? There is no doubt that capacitive touch screens have become the mainstream user interface technology for smartphones and tablets, and are quickly applied to many other device categories. Atmel has been providing a projection capacitive touch solution and is therefore well aligned with this market trend. "Our approach is to maximize touch-screen performance with powerful circuits and smart software, and this approach works," says Jon Kiachian. ”

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