capacitive touch lcd module brands

Projected capacitive technology enables touches to be sensed through a protective layer in front of a display, allowing touchmonitors to be installed behind store windows or vandal-resistant glass. DirectTouch consists ...

... worldwide introduction of the capacitive technology has been made by the Iphone®.“Capacitive Touch Sensing” is a capacitive sensing (detection) technique ...

Elektrosil offers projective capacitive touchscreens in numerous design variants. This user-friendly technology makes it possible to install screens flush with their ...

Capacitive Touch Panel, WHITE LED backlight, All Viewing Angles, Wide temperature range, Transmissive polarizer, 450 NITS, CTP controller: FT6236, RoHS Compliant

The Capacitive touch panel is activated with anything containing an inductive load such as a finger or stylus. It allows for multi-touch options. When using the capacitive touch screen, the display needs a separate controller to interface with the touch panel. The display for capacitive touch is brighter since the touch panel is transparent.

Focus LCDs can provide many accessories to go with your display. If you would like to source a connector, cable, test jig or other accessory preassembled to your LCD (or just included in the package), our team will make sure you get the items you need.Get in touch with a team member today to accessorize your display!

Focus Display Solutions (aka: Focus LCDs) offers the original purchaser who has purchased a product from the FocusLCDs.com a limited warranty that the product (including accessories in the product"s package) will be free from defects in material or workmanship.

TL;DR Display is one of the better ones with some of the best viewing angles for the size and price. Nice picture. Touch screen function works and is fairly average. Great for Raspberry Pi projects that demand a screen that can be viewed from any angle.

Touch Support: The touch support on this works good. Responsive and fairly precise. The official one does seem to respond better with multi touch, but not giant difference.

*Connection: This one uses an hdmi or hdmi mini to connect and a usb port for touch and power. Can use an additional usb power for standalone power instead of pulling it from the raspberry pi. Very good for raspberry pi projects that might be using a cheap power adapter or may already be fairly maximized on their power draw. You might see flickering if you are trying to pull power from a raspberry pi that can"t provide adequate power, in which case you would need an additional power supply which is not provided. Mine worked fine using the power from the Pi. Downside is that it is kind of bulky compared to the official one that connects directly to the gpo pins on the board. Upside it frees up the gpo pins for other hats, like in my case, the hifiberry dac pro+

The 3.5 inch RPI lcd display TFT Capacitive Touch Screen is a display module can be applied to Raspberry pi 3 B+ Pi Zero etc. It can be used as raspberry pi x window display terminals.

The RPI LCD Display TFT Capacity Touch Screen Modules used 28 pins out of raspberry pi 40 pin. When installing the module attention to align the first leg of the raspberry pi and LCD module.

TFT Display modules with Capacitive Touch Screen are more user-friendly and have better performance compared with the ones with Resistive Touch Screen. There are many combinations of TFT display modules with projected capacitive touchscreen (PCAP) for you to choose from. We offer modules with various features including modules with control board, wide viewing angle, sunlight readable, wide temperature, and Monochrome. The available sizes are 0.96", 3.5", 3.9", 4.3", 5", 5.2" 5.7", 7" and 10.1"

The resolution of the LCD display is 800 x 480, you can configure the resolution via software, and the maximum resolution it supports is 1920 x 1080. It is a USB capacitive touch screen and does not require a driver. It supports five touch control, besides that, the LCD screen comes with an OSD menu adjustment function. You can adjust the contrast, brightness, and switch button. There are 9 interfaces on the back of the screen, one earphone for audio output; two touches (USB connector), for power supply and touch output; one display, an HDMI interface, for connecting the motherboard and LCD display. One power, it can control the backlight to turn on and turn off to save power. One return, it’s only useful in the OSD menu. One right/down, backlight shortcut key. One left/up, backlight shortcut key. A menu, it’s useful in the OSD setting menu, open the OSD/ select key.

Thanks to the wide range of sizes available and the high-resolution support of those devices (e.g. 768p, 1920~1200 pixels), faytech’s capacitive touch monitors are the perfect choice for a wide range of applications, including but not limited to POS systems, kiosk systems, for office/residence automation and as control panels in industrial fields.

All our Capacitive touch screens are made of an industrial A+ HD LCD capacitive multi-touch panel with energy-saving LED technology and a wide viewing angle. These characteristics make faytech Capacitive touch displays perfect solutions when it comes to fashion shows, industrial 4.0 projects, dealerships, wayfinding, supermarkets, sports arenas, interactive visualizations, and digital signage.

The potential use cases of those units are almost infinite. For residencies, condominiums, or apartment lobbies, the Capacitive Touch Monitors could be used as interfaces or as part of a residential automation system. In hotels, these capacitive touch screen monitors could help enhance communications between staff and residents, as well as being part of a security automation system. Beyond residential and hosteling settings, faytech capacitive touch displays would be a great addition to any educational system, being used to improve interactions between students and professors in classrooms, for personnel management, and as interfaces to plan and communicate about curricular and extracurricular events. Faytech Capacitive Touch Monitors are also a great option to make scheduling and inventory management easier, whether in a private company or a public/educational setting.

In retail environments like mall shops and department stores, the technologies provided by faytech Capacitive Touch Monitors will be a great addition not only for customers, helping them to easily check inventory details without having to ask store personnel, but also for managers, being an easy way to cut back on operating costs. One of the multiple advantages of our capacitive touch screens is that they can be easily integrated with external software applications that, in turn, can allow customers to try demo versions of the products or services they contemplate purchasing. All in all, faytech capacitive touch monitors can serve as a great interactive medium to facilitate the purchasing process and multiply your sales.

While faytech Capacitive Touch Monitors can for sure be used for single-touch applications, these touch devices truly shine in more complex use scenarios. These include for instance directories or maps, when the user may have to use finger-scroll, pinch-zoom, and panning functions. Indeed, one of the main differences between Resistive touch monitors and capacitive touch monitors concerns touch technology. While resistive touch monitors are most of the time equipped with a single touch panel, the capacitive touch monitors are on the other side built to effectively register multi-touch, going as high as ten touches at the same time! It is now even possible to use Capacitive Touch Monitors when wearing heavy gloves, which is a significant upgrade given that this feature was formerly the preserve of Touch Monitors using Resistive-touch technology. Thanks to their patented IP65 front with silicone seal, faytech Capacitive Touch Monitor also work under heavy rain, which makes them adapted to use in semi-outdoor environments.

Worth noting, Capacitive Touch screens can most of the time be divided into two sub-categories: Projected Capacitive Touch Screens (PCAP) and Surface Touch Screens.

Based on projected technology, faytech Capacitive Touch Monitors are suitable for use in some highly specialized industries, including the aerospace (including but not limited to avionic systems), medical, military, and industrial ones (serving for example as an automated equipment control). Particularly, the main advantages of faytech Projected Capacitive Touch Monitors concerning these specific industries are the variety of layers stack-up options available, resulting in unparalleled durability and color perception. The Capacitive Touch Monitors manufactured by faytech respond to all the obligations induced by such demanding industries, thanks to several outstanding features. Those include:

Along with these peculiar applications, faytech Capacitive Touch Screens are also ideally fitted for high usage environments when based on surface technology.

Technically speaking, on top of the front surface is applied a conductive coating, itself composed of wires connected to every four corners where a small voltage is applied. The system relies on the “capacitance” of the human body, which is to say that when one touches the screen, a small current flows to the touchpoint, generating a voltage drop detected at the corners.

This functioning makes screen surface technology more fitted to use on larger size (i.e. over 12 inches) applications. Besides, the single glass layer structure allows these devices to have excellent optical clarity and high light transmission (from 88 up to 92 percent). Of all the available technologies, it has the fastest touch response time. These monitors can also withstand regular cleaning using harsh chemicals. All in all, these functionalities make the capacitive touch monitors using surface technology especially suitable for commercial uses, such as the ones that we mentioned before.

On top of the potential use cases presented in this section, our Capacitive Touch Monitors can easily be integrated into any conceivable application and setup. Faytech NA is specialized in custom-made solutions and we will be glad to help you find the best Capacitive Touch Monitor for your specific needs and applications. Don’t hesitate to contact us to talk with one of our Capacitive Touch Screen Monitor specialists.

Touch panels have been evolving quickly and touchscreen technologies are becoming ever more sensitive to interactions with something as simple as the human finger.

The following are some important points regarding our touch panel company and some of the ways we are developing surface capacitive touch panel displays and devices.

A capacitive touchscreen can be found in many devices ranging from mobile phones to large touch panels to projected capacitive displays to kiosks with surface capacitance technology.

faytech NA specializes in the design, development, manufacturing, and marketing of specific computing solutions such as Touchscreen Desktops and Displays for Capacitive, Embedded, Industrial, Resistive, Rugged, Sunlight Readable, High Brightness, Open Frame, Kiosks and Accessories.

Thanks to the accurate touch sensors, capacitive touch screen monitors are implemented as a viable solution for situations where the mouse and keyboard systems cannot be used as suitably accurate. Capacitive touch panel touchscreens offer a rapid, or intuitive means of interaction with the content on the screen.

Touchscreens with controller-based firmware and touch sensor have been made available, historically, by a various after-market system integrators, and not by the  motherboard, chip, and display manufacturers.

However, chip and touchscreen manufacturers worldwide have acknowledged in the last few years the trend toward a wide acceptance of touch-friendly interface components as a highly desirable alternative and have begun to integrate this technology into the design of their products.

A capacitive touch screen monitor can be used similar to a keyboard that is invisible since it displays only as many button choices and as much data as users need to complete a particular task.

This is one of the reasons why touch panels are increasing in popularity in various applications from industrial machinery to kiosks and mobile phones.

In selecting the most suitable monitor for your application, the most important decision is in regard to the type of touch screen technology to use. Touch panels and touchscreens come in several types based on a few different technologies, each with its own advantages and disadvantages.

A touch screen monitor is made of insulating material covered with transparent conductors. The most common material used as an insulator is glass. As a transparent conductor, indium tin oxide is usually used.

The resulted electric distortion is measured as a change in capacitance. In order to identify the touch display’s locations in a way can be used in various technologies, the location is then sent for processing to the controller of the capacitive touchscreen.

The difference from a resistive touch screen, is that users cannot work with a capacitive touchscreen through gloves and other types of electrically insulating material. In consumer electronics, this is a disadvantage because these smartphone and touch tablet PCs cannot be used in cold weather. However, this disadvantage can be overcome with a special-application glove or a special stylus.

The top manufacturers of capacitance displays continue to develop more accurate and thinner touch screens. For instance, by building the capacitors inside the display itself, mobile devices such as Samsung’s Super AMOLED screens are being produced now with “in-cell” technology that eliminates a layer.

This reduces the visible distance between what the user is touching on the screen and the user’s finger, enabling gestures and taps to be more responsive and creating a more direct contact with the content displayed.

Touch screens based on projected technology deliver interactive solutions for various applications and industries including aerospace, medical, military, and industrial.

Multi-touch projected technology has changed forever the way we interact with machines since the iPhone exploded on the market in the year 2007. Touch monitors with projected technology offer many substrate choices and stack-up options, delivering unmatched durability and outstanding optics.

Curved and flat surface touch screens are suitable for graphic driven applications, such as vending machines, entertaining, gaming, banking, and ATMs. Itcomes with a conductive coating on top of the front surface. The conductive coating features wires connected to each corner. To each of these four corners is applied a small voltage. The operation is based on surface technology relies on the capacitance of the human body. A small current flows to the point when you touch the screen, causing a voltage drop that is then sensed at corners.

This screen surface technology can be used easily on a larger size (over 12 inches) applications. Because the structure is only one glass layer, they provide high light transmission (in the range of 88 to 92 percent) and excellent optical clarity. Of all the available technologies, it has the fastest touch response time. These monitors can also withstand regular cleaning using harsh chemicals.

Because the touch screen display is based on a durable technology, they can be employed in applications that require increased durability. Among their areas of application are included point-of-sale systems, kiosks, and industrial computer machinery. Another advantage is that they have a higher clarity than resistive-type (higher by 88-92 percent).

Interface: Your computer should communicate with the touch screen panels. The most common interface types USB and RS-232. The need for drivers has been eliminated by new HID-compliant touchscreen displays.

Mounting: Among the various mounting options are included free-standing, rack mount, and panel mount. In case that you want to use free-standing, make sure that you use a heavy-duty stand that was specifically designed for touch.

faytech North America’s capacitive touch screen monitor solutions will enhance an organization’s productivity. Contact us today to speak with our capacitive touch screen monitor specialists.

Capacitive touch screen technologyUSES the human body’s current induction to work. The capacitive touch screen is a four-layer composite glass screen. The inner surface of the glass screen and the interlayer are coated with one layer of ITO respectively. The outermost layer is a thin layer of silica soil glass protective layer. When the finger touches the metal layer, the user and the touch screen surface form a coupling capacitor due to the electric field in the human body.

The capacitor is a direct conductor to the high-frequency current, so the finger sucks a small current away from the contact point. The current flows from the electrodes at the four corners of the touch screen respectively, and the current flowing through the four electrodes is proportional to the distance from the fingers to the four corners. The controller calculates the precise proportion of the four currents to get the position of the touchpoint.

In order to realize multi-touch on a capacitive screen, it is necessary to add electrodes of mutual capacitance. In a simple words, it is to divide the screen into blocks and set a group of mutual capacitance modules in each area to work independently. Therefore, the capacitive screen can independently detect the touch situation of each area and simply realize multi-touch after processing.

Capacity Touch Panel USES the current induction of the human body to work. The capacitive screen is a four-layer composite glass screen. The inner surface of the glass screen and the interlayer are coated with ITO (indium sikgold oxide nano). The outermost layer is a protective layer of silica glass with a thickness of 0.0015mm.

Whena user capacitive touch screen, the electric field due to the human body, your fingers and face form a coupling capacitance, because the working plane to have a high-frequency signal, so the fingers on a very small current, respectively from the current screen in the four corners of the electrode, and theoretically through the four electrodes with the finger to the four corners of the current is proportional to the distance, the controller through the precise calculation of the four current ratio, it is concluded that location. It can achieve 99% accuracy, with a response speed of less than 3ms.

Projective capacitive touch screens etch different ITO conductive circuit modules on two layers of ITO conductive glass coatings. The etched patterns on the two modules are perpendicular to each other and can be thought of as sliders with continuous changes in X and Y directions. As the X and Y architectures are on different surfaces, their intersection forms a capacitor node. One slider can be used as the drive wire and the other as the detection wire. When a current passes through one of the wires in the drive wire, if there is a signal of a change in the capacitance outside, it will cause a change in the capacitance node on the other layer of wire. The change in capacitance can be detected by measuring the electrical circuit connected to it, and then converted to A digital signal by A/D controller, which can be processed by A computer to obtain the (X, Y) axis position, so as to achieve the positioning target.

During operation, the controller successively supplies power to the driving wire, thus forming a specific electric field between each node and the wire. Then scan the sensor line one by one to measure the capacitance change between the electrodes so as to achieve multi-point positioning. When the finger or touch medium is close, the controller can quickly detect the change of capacitance between the touch node and the wire, and then confirm the position of the touch.

One axis is driven by a set of AC signals, and the response across the touch screen is measured by electrodes on the other axis. Users call this’ transversal ‘sensing or projective sensing. The sensor is plated with the ITO pattern of the X and Y-axis. When the finger touches the touch screen surface, the capacitance under the touchpoint increases according to the distance of the touchpoint. The continuous scanning on the sensor detects the change of capacitance value, and the control chip calculates the touchpoint and returns it to the processor.

Commonly used is the surface capacitive touch screen, which works in simple principle, low price, simple circuit design, but difficult to achieve multi-touch.

Projective capacitive touch screens are multi-finger touch. These two capacitive touch screens have the advantages of high light transmittance, fast response speed, and long life, etc. The disadvantages are: with the change of temperature and humidity, the capacitance value will change, resulting in poor work stability, often drift phenomenon, need to frequently proofread the screen, and can not wear ordinary gloves for touch positioning.

The projected capacitive touch screen can be divided into the capacitance and mutual capacitance screen two types, one of the more common mutual capacitance screen as an example, the internal electrode and receiving electrode by the driver, drive electrode signal low voltage high frequency projected onto the receiving electrode form stable current, when human exposure to the capacitance screen, earth due to the human body, fingers and capacitance screen to form an equivalent capacitance, and the high-frequency signal by the equivalent capacitance into the ground, in this way, the receiver receives charge is reduced, when fingers near the transmitter, electric charge, the more significant, according to the receiving end receives the current strength of to determine the touchpoint.

Arrays of transverse and longitudinal electrodes are made from ITO on the surface of the glass. These transverse and longitudinal electrodes form capacitors with the ground respectively. This capacitor is commonly referred to as self-capacitance, that is, the capacitance of the electrode to the ground. When the finger touches the capacitive screen, the capacitance of the finger will be superimposed on the capacitance of the screen, thus increasing the capacitance of the screen.

During touch detection, the horizontal and longitudinal electrode arrays are respectively detected from the capacitive screen. According to the changes of capacitance before and aftertouch, the horizontal coordinates and longitudinal coordinates are determined respectively, and then the touch coordinates of the plane are combined. The scanning method of self-capacitance is equivalent to projecting the touchpoints on the touch screen to the X-axis and Y-axis directions respectively, and then calculating the coordinates in the X-axis and Y-axis directions respectively, and finally combining them into the coordinates of the touchpoints.

If it is a single touch, the projection in the X and Y direction is unique, and the combined coordinates are unique. If there are two touches on the touch screen and the two touches are not in the same X direction or the same Y direction, then there are two projections in the X and Y direction respectively, and the combined coordinates are 4.Apparently, only two of the coordinates are real, and the other two are known as ghost points. Therefore, self – the capacitive screen can not achieve true multi-touch.

The mutual capacitor screen also USES ITO to make the transverse electrode and the longitudinal electrode on the glass surface. The difference between it and the self-capacitor screen is that the place where the two groups of electrodes cross will form a capacitor, that is, the two groups of electrodes form the electrodes of the capacitor respectively. When a finger touches a capacitive screen, the coupling between two electrodes near the touchpoint is affected, thus changing the capacitance between the two electrodes.

When the mutual capacitance is detected, the transverse electrode will send out excitation signals successively, and all the longitudinal electrodes will receive signals at the same time. In this way, the capacitance value of all the intersection points of the transverse and longitudinal electrodes can be obtained, that is, the capacitance value of the entire two-dimensional surface of the touch screen. The coordinates of each touchpoint can be calculated according to the two-dimensional capacitance variation data of the touch screen. Therefore, even if there are multiple touchpoints on the screen, the actual coordinates of each touchpoint can be calculated.

The advantage of the mutual capacitive screen is less wiring, and can simultaneously identify and distinguish the difference between multiple contacts since the capacitive screen can also sense multiple contacts, but because the signal itself is fuzzy, so can’t distinguish. In addition, the induction scheme of the mutual capacitive screen has the advantages of fast speed and low power consumption, because it can measure all the nodes in a driveline at the same time, thus reducing the number of acquisition cycles by 50%. The dual-electrode structure has the function of self-shielding external noise and can improve signal stability at a certain power level.

In any case, the touch position is determined by measuring the distribution of signal changes between the X and Y electrodes, and a mathematical algorithm is then used to process the changed signal levels to determine the XY coordinates of the touchpoint.

•   Capacitive schemes last longer because the components in the capacitive touch screen do not need to move at all. In a resistive touch screen, the top layer of the ITO film needs to be thin enough to be elastic so that it bends down and touches the bottom layer of the ITO film.

•   The choice of capacitor or resistor depends largely on the object touching the screen. If it is a finger touch, the capacitive touch screen is a better choice. If a stylus is needed, whether plastic or metal, a resistive touch screen will do. A capacitive touch screen can also use a stylus but requires a special stylus to work with it.

•   Surface capacitances can be used for large touch screens and are relatively low, but they currently do not support gesture recognition: inductive capacitances are mainly used for small and medium-sized touch screens and can support gesture recognition.

•   Capacitive technology is wear-resistant, has a long service life, and has low maintenance costs when users use it, so the overall operating costs of manufacturers can be further reduced.

•   Capacitive touch screens are designed to support multi-touch technology and are less responsive and less prone to wear and tear than resistive touch screens.

STONE provides a full range of 3.5 inches to 15.1 inches of small and medium-size standard quasi TFT LCD module, LCD display, TFT display module, display industry, industrial LCD screen, under the sunlight visually highlight TFT LCD display, industrial custom TFT screen, TFT LCD screen-wide temperature, industrial TFT LCD screen, touch screen industry. The TFT LCD module is very suitable for industrial control equipment, medical instruments, POS system, electronic consumer products, vehicles, and other products.