ROHM Semiconductor claims industry's first multi-touch controller for resistive touchscreens
June 29, 2011 // Paul Buckley
ROHM Semiconductor has introduced the new BU21023/BU21024 series of high-speed, high noise immunity, low-voltage resistive touchscreen controllers. The new controllers claim to be the industry’s first to enable multi-touch (two-point) operation and intuitive gesture control, including pinching, spreading and rotating – previously possible only with more expensive capacitive touch systems.
The increasing functionality and sophistication of electronic devices drives the demand for touchscreens which are preferred for their ease of use and versatility. In addition they enable direct interaction without the need for input devices. Resistive touchscreens account for more than 75% of the touchscreen market, due in large part to their lower cost and higher precision when compared to capacitive technologies. Another advantage is that they allow operation with fingernails or even while wearing gloves, unlike capacitive touchscreens that require a conductor or dielectric.
The functionality of electronic devices is increasing day by day and operation by touch panel is increasingly shifting toward pinch, spread and other intuitive finger gestures. Until now, in order to actualize functions like these, electrostatic capacitance type touchscreens were the only choice. With the new BU21023/BU21024 series, conventional 4-wire resistive touchscreen designs can be easily expanded to include dual-touch.
The BU21023/BU21024 series ICs integrate a dedicated analog circuit and CPU for precise two-point coordinate and gesture detection. A calibration function is also built-in that minimizes the effects of panel variations during production as well as fluctuations in touchscreen device characteristics caused by temperature variations or time-based degradation.
Samples of the BU21023/BU21024 series of resistive touchscreen controllers are available now.
Visit ROHM Semiconductor at www.rohm.com/eu.
Flexible sensor detects multiple ions in fluids
November 24, 2015
Imec and Holst Centre have demonstrated a prototype of a single-chip electrochemical sensor for simultaneous detection of ...
Starting all over again on plastic: ARM
From electronics to maths and money madness
Analog IC market growth set to slow
Volkswagen deploys data glasses in series production
Startup CircuitSeed wants to be the ARM of analogue
November 23, 2015
Founded last summer after two years of preliminary research and with several patents pending, Californian startup Circuit ...
Imagination Technologies leverages kickstarter for IoT kit launch
Taiwan considers lifting China investment ban
Why Japan hasn't led IoT
- Battery Size Matters
- Software-Defined Radio Handbook - 11th edition
- Multichemistry Buck Battery Charger Controller
- Automotive Circuit Protection using Littelfuse Automotive TVS Diodes
InterviewCEO interview: InvenSense's Abdi on expanding MEMS horizons
InvenSense Inc. is a MEMS company that has epitomized a fabless approach to a sector that is still highly reliant on a thorough grasp of the manufacturing and packaging processes. We interviewed CEO Behrooz ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, FTDI Chip is giving away six MCU development board packages complete with a dedicated compiler (including a full integrated development environment).
Worth Euro 315 each, the packages include a credit card sized Clicker 2 board for the FT90X 32-bit MCU supplied alongside a powerful dedicated compiler from MikroElektronika.
MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.