Latest News
- 2018-04-17
- ROHM to Construct New Building at its Apollo Plant in Japan to Expand the Production Capacity of SiC Power Devices
- 2018-03-28
- ROHM Receives Certification Under the ISO26262 Automotive Functional Safety Standard for the Development Process
- 2018-03-20
- The Industry's First* Power Supply ICs for High-Fidelity Audio
- 2018-03-01
- New DC/DC Converter Featuring the Industry's Lowest Current Consumption
- 2018-02-21
- New High-Speed Optical Heart Rate Sensor Optimized for Measuring Blood Pressure, Stress and Vascular Age
- 2018-02-02
- Posted 3rd quarter financial results and related documents for fiscal year ending March 31, 2018
- 2018-01-30
- New Boost Converter Provides 1.3x Longer Battery Life
- 2018-01-25
- New Ultra-Low-Ohmic Shunt Resistors for Automotive Systems and Industrial Equipment
- 2018-01-08
- ROHM and Equate Health Partner to Develop a Breakthrough Cuffless Optical Blood Pressure Monitor
- 2018-01-04
- ROHM and Litmus Automation Partner to Offer an Optimized IoT Solution for Smart Factories
- 2017-12-05
- The Industry's First Dual-Mode Battery Charge ICs
- 2017-12-01
- ROHM supplies Full SiC Power Modules to Formula E racing team Venturi
- 2017-11-28
- Expanded Lineup of Compact High-Power Low-Ohmic Shunt Resistors
- 2017-11-16
- The Industry's First Noise-Tolerant Opamps
- 2017-11-01
- Posted 2nd quarter financial results and related documents for fiscal year ending March 31, 2018
- 2017-09-28
- ROHM's New High Resolution Audio SoC Supports a Variety of Sound Sources
- 2017-09-20
- Kionix's New KX220 Analog Accelerometers for the Industrial Market
- 2017-09-12
- New Power Supply IC Featuring the Industry's Highest Step-Down Ratio: 60V Input →2.5V Output (at 2MHz)
- 2017-09-05
- The Industry's First Dual-Mode LPWA (Low Power Wide Area) Compliant Wireless Communication LSI
- 2017-08-23
- Ultra-Compact Low Profile 2-Color Chip LEDs
ROHM Introduces Industry's First Multi-Touch Controller for Resistive Touchscreens
Less expensive than conventional capacitive touchscreen control; internal CPU supports dual-touch gesture sensing without external resistors; built-in compensation circuits facilitate volume manufacturing
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 over 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.
"Touchscreen panels are used in a wide variety of applications, including cellular telephones and car navigation systems," said Nick Ikuta, ROHM, Sr. Technical Marketing Manager. "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.