Touch screens keep being a growing display since 2007 when the iPhone first time launched by Apple, it already becomes one of the primary classifications of the LCD panels and LCD modules.
Following the growing of conferences/teaching need of large size digital touch display, also the smart city concepts more and more popular in worldwide city development, everyone is asking for large size touchable digital signage can be used to make their city much “future”, this is the reason why touch panel sizes larger than iPhone and iPad is prosperous now.
In general, there are 2 mainly types of touch can be used by large size touch display, Infrared and capacity, Infrared usually on large size over 55-inch and support multi-point touch at same time, the only problem is infrared always effects by sunlight and other possible high temperature sources; Capacity usually used on small sizes under 32-inch, give display much precisely and stable touch function, but take much time and price to produce.
The capacitive technology got its start in 1965, when an English researcher, E.A. Johnson, created a lab display. Sam Hurst, founder of Elo graphics, commercialized the technology in 1977. The technology consists of a layer of glass, or a protective cover, that sits atop a touch sensor layer. That layer is coated with a matrix of overlapping wires made from a transparent conducting material. Those wires connect to a controller chip that receives the data and sends it to the phone or tablet’s main processor. The touch sensor layer is sandwiched in between the protective cover and the display panel, usually a liquid crystal display or organic light emitting diode (OLED) display. When a finger comes down on the cover, it distorts the screen’s electrical field, resulting in a measurable change in capacitance, or the ability to store a charge. Then a signal gets sent to the controller chip.
Touch screen allowed the human-machine interactive be easier and directly, whatever the mobile phone or the central control of the Tesla, people just click what they see on the screen to save the time and cost on real button/keyboard (at the same time, cancel of keyboard and button also allowed us making full waterproof display, this is the same concept why Apple canceled the headphone hole of their products), Risingstar is focus on this area to make all size touch panel from 10.1 inch to the 110 inch, we are using the best touch technology from this industrial.
Currently the most competitive touch screen technology developer are these companies: ELO, TPK and 3M, also the secondary company such like EETI as our after-sell for all the touch screen problem, we have attached relationship between those companies to make sure our product uses the touch-tech as stable as possible to prove the using experience for all our customers.
Here is some standard touch display from our product list:
RS185ENT-NE10 industrial display with touch screen
RS121ENT-N10 open frame monitor
RS320ENT-N03CG curved touch LCD
RS500ENT-N30 floor standing digital info kiosk
RS750ENT-N20 conference use large size player
65-inch 4K touchable outdoor TV
