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Resistive Touchscreens
What is Resistive Touch Screen Panels?
A resistive touchscreen panel comprises several layers, the most important of which are two thin, transparent electrically-resistive layers separated by a thin space. These layers face each other with a thin gap between. The top screen (the screen that comes incontact) has a coating on the underside surface of the screen. Just beneath it is a similar resistive layer on top of its substrate. One layer has conductive connections along its sides, the other along top and bottom.

A voltage is applied to one layer, and sensed by the other. When an object, such as a fingertip or stylus tip, presses down onto the outer surface, the two layers touch to become connected at that point: The panel then behaves as a pair of voltage dividers, one axis at a time. By rapidly switching between each layer, the position of a pressure on the screen can be read.

We see use of Resistive touch in restaurants, factories and hospitals due to its high resistance to liquids and contaminants. A major benefit of resistive touch technology is its low cost. Additionally, as only sufficient pressure is necessary for the touch to be sensed, they may be used with gloves on, or by using anything rigid as a finger/stylus substitute. Disadvantages include the need to press down, and a risk of damage by sharp objects. Resistive touch screens also suffer from poorer contrast. Due to having additional reflections from the extra layers of material (that the air gap separates) that you place over the screen.

What kind of resistive touchscreen we can supply?
4 wires resistive touchscreen
5 wires resistive touchscreen
8 wires resistive touchscreen
Digital resistive touchpanels
Capacitive Touchscreens
What are Capacitive Touch Screens?
Capacitive touch screens consist of an insulator such as glass, coated with a transparent conductor such as indium tin oxide (ITO). As the human body is also an electrical conductor, touching the surface of the screen results in a distortion of the screen’s electrostatic field, measurable as a change in capacitance. In order to determine the location of the touch, you would use different technologies. Then, send the location to the controller for processing.

Capacitive touchscreens are those that respond to the electrical properties of the human body. This means that it is possible to control them with a light touch. So, the user doesn’t need to exert heavy pressure on the screen. The drawback to a capacitive touchscreen, though, is that it usually cannot be controlled by a gloved finger or an input device, such as a stylus.

There are some input devices that have been optimized for use with capacitive touchscreens, though. Capacitive touchscreens also are the only ones capable of multi-touch, which allows the display to recognize more than one point of contact. Without multi-touch, you cannot use gestures such as pinching and spreading a screen to zoom in and out.

What Kind Of Capacitive Touchpanels We Can Supply?
Capacitive touchscreen panels
ITF for Interactive Electronic White Board
Capacitive touch sensors
OCA lamination PC Lens/LCD/OLED/TP to backside of display window for membrane switches

What kind of capacitive touchpanels we can supply?
Capacitive touchscreen panels
CapTouch Film Circuit for Interactive Electronic White Board
Capacitive touch sensors for Househhold Appliances
OCA lamination PC Lens/LCD/OLED/TP to backside of display window for membrane switches
Touch Display Assemblies
Most of time the touchscreen or the LCD is not separately showed before us. They usually combined together to be a complete touch display module. LuphiTouch produces the touchscreens by ourself and source the LCDs from our long time cooperated partners and then make assembly by ourself. Except for the traditional touchscreen-LCD assembly modules, we also can do the capacitive touch membrane switch modules. The capacitive membrane swtches are also usually be combined with the TFT LCDs and OLEDs. For the capacitive mebrane switch modules, we can do the one stop solutions for our clients. From mechatronics design to function control software development and prototypes making, series production etc.
Dsiplay Window OCA Bonding
OCA means optical adhesive. For some end using, the machine interface has the touch and or display function except for the buttons switch function. So for such kind of application, the membrane switch is usually combined with touchscreen or LCD to be a membrane switch module. But how to apply the touchscreen or LCD to the membrane switch? Here we can use OCA full lamination (or called OCA bonding) technology to combine the touchscreen or LCD with membrane switch together. First laminate the OCA adhesive on the assembly side of the touchscreen or LCD, then stick it to the backside of the membrane switch display window, then use the vacuum lamination machine to laminate it. After this process there may be little or big air bubbles at display window area, then need use the defoaming machine to defoam the air bubbles. See below cases of our manufactured OCA bonding membrane switches:
80% customers of LuphiTouch are from USA, Australia, UK, Germany, Austria, France, Italy, Belgium, Sweden, Newzealand etc. countries and areas. We've established good cooperation relations with them already.

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