Santa Clara, CA – Tianma NLT America (TNAM) has announced the introduction of an LCD prototype with a tactile touch technology developed by NLT Technologies. This technology recreates the sense of tactile texture to the users by using electric vibrations and reproduces skin sensations as if they are tracing actual objects on the display.
The display provides texture via skin sensation when the user traces the surface of the display where the image is shown. If multiple fingers touch the display at the same time, the digits on the area where the image is shown can feel the appropriate texture, but the digits on the area without the image will not feel the texture. This enables users to identify which area on a display the image is shown, not only visually, but also through tactile feel.
The stimulus can be localized in conjunction with the image object, enabling each finger to sense its own stimulus, so the display can accommodate multi-finger or multi-person tactile interaction with visual information.
A conventional tactile touch system (e.g., smartphones) presents the same sensation over the entire surface so that all fingers coming into contact with the surface experience the same sensation. In contrast, the new NLT tactile touch technology provides regional stimulation, which is provided by electrostatic force. The electrostatic force is generated by the beat phenomenon in a region where excited X electrodes cross excited Y electrodes, which presents tactile sensation to the users. The tactile touch technology applied to the panel provides multi-finger interaction.
The display arranges multiple electrodes horizontally (X) and vertically (Y) on the glass panel and applies voltage with different frequencies to each X and Y electrode located on the image area. Electrostatic force corresponding to the difference in the frequencies occurs at the electrodes’ cross point. When user traces on the surface, friction variation, modulated by the electrostatic force, occurs. The display uses this friction variation to provide the tactile sensation. The friction variation does not occur at the areas without images, so it is possible to localize the region to be stimulated and achieve the multi-finger function. This tactile technology with the matrix electrodes arrangement consists of a relatively small number of electrodes, enabling the display to be higher in density and larger in size.
Touchscreens are a vital interface for today’s information technology devices. The tactile display offers a new user experience, such as improving the usability and realistic sensation of the display, or enabling sharing of the "feeling" among users via the internet. The regional stimulation feature can be useful in many applications, including smart devices, cockpit displays in autos and aircraft to prevent the driver or pilot from being visually distracted, and in devices for the visually impaired.
NLT Technologies continues to promote research and development of multi-finger tactile displays and to open up new application possibilities, such as smart devices and industrial applications and navigation systems with more intuitive and interactive operation.
The new tactile multi-touch prototype will be demonstrated at Display Week 2014, June 3-5, at the San Diego Convention Center in San Diego, California, in booth 1320.
For more information, contact Tianma NLT America, Inc., 2801 Scott Blvd., Santa Clara, CA 95050. 1-408-816-7010; firstname.lastname@example.org; www.tianma-nlt.com.
About Tianma NLT America
Tianma NLT America, Inc. (TNAM) was established in November 2013 as a joint venture between Shanghai AVIC Optoelectronics Co., Ltd. and NLT Technologies, Ltd. TNAM is focused on providing the Americas with LCD products specifically for industrial and professional applications. With an extensive lineup of 2.X to 21.X-inch active-matrix LCD modules and a network of best-in-class distributors and value-added partners, Tianma NLT America provides complete display module solutions to a broad base of customers and applications. The range of LCD modules offered includes ultra-high resolutions, wide temperature ranges, high contrast ratios, rich color gamut, backward compatibility, LED backlights, and transflective viewing for use in diverse lighting environments.
Tianma NLT America is committed to delivering innovative, high-performance, eco-conscious LCD solutions that address the diverse size, power and high image-quality needs of our industrial, medical, professional and high-end monitor customers. Based on technologies developed by NLT Technologies and other Tianma Group companies, the LCD modules are optimized and designed for a wide range of applications, including portable and stationary medical equipment, test and measurement devices, instrumentation equipment, point-of-sale and ATM systems, gaming systems, global positioning systems, radio-frequency identification devices and barcode scanners.
Additional information can be found at http://www.tianma-nlt.com
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