Recognize how to work the touch screen can help to treat and differentiate the types of touch screens in mobile phones today's world. There are three types, namely, resistive, capacitive and surface acoustic wave system.
A. resistive Screen
Resistive system screen color coated by a thin layer of metallic conductive and resistive to electrical signals. The purpose of the conductive layer is a layer that is easy to conduct electrical signals, while the resistive layer is a layer that holds the electrical current.
Both layers are separated by a separator transparent spots, so that this layer must be separated from each other in normal circumstances. On the conductive layer is also in charge of electric current flow as the reference current.
When there is a touch of the two layers will be forced to come into contact with each other physically. Because of the contact between the conductive and resistive layers there will be interference with the reference electric current.
Both layers are separated by a separator transparent spots, so that this layer must be separated from each other in normal circumstances. On the conductive layer is also in charge of electric current flow as the reference current.
When there is a touch of the two layers will be forced to come into contact with each other physically. Because of the contact between the conductive and resistive layers there will be interference with the reference electric current.
The effects of these disorders on the conductive layer is going to change electrical currents in response to a touch event. Change the reference current value is then reported to the controller for the process further.
Touch information were processed mathematically by the controller so as to produce an accurate and position coordinates of the touch. Then the information is integrated with another program so that it becomes easy to use application.
Screen with this technology has the highest image clarity by 75% only, so the monitor will seem less clear. Touch sensors of this type are very vulnerable and weak to touch objects that are somewhat sharp.
This technology will not be affected by other elements on the outside such as dust or water, but will respond to all of touch about it, either using your fingers directly or using other objects such as a stylus. It is used for industrial purposes in the world such as in factories, laboratories, and more.
Touch information were processed mathematically by the controller so as to produce an accurate and position coordinates of the touch. Then the information is integrated with another program so that it becomes easy to use application.
Screen with this technology has the highest image clarity by 75% only, so the monitor will seem less clear. Touch sensors of this type are very vulnerable and weak to touch objects that are somewhat sharp.
This technology will not be affected by other elements on the outside such as dust or water, but will respond to all of touch about it, either using your fingers directly or using other objects such as a stylus. It is used for industrial purposes in the world such as in factories, laboratories, and more.
Simplified definition:
The screen is how it works should be suppressed, can use your finger or any object which is emphasized on the screen. Drawback to this is if the screen is placed dikantong (especially pants pocket), can be depressed, press and caused the screen to be easily damaged because it is often depressed.
Indoor: very goodExamples of HP that use resistive screens are Samsung Star, Sony Ericson W950. Siri-character stylus is included in the package with his cell phone. Choose a container that uses a flip model, so the screen can be protected from pressure. Vice versa is not recommended to use the HP models pouch container.
Outdoor: less than optimal
B. capacitive Screen
Capacitive system has a wrapper layer that is the key to how it works, that is a wrapper that is capacitive in the entire surface. Touchscreen panel is equipped with a wrapper layer that can be made from indium tinoxide pass electric current is continuous, and then directed to the sensor.
This layer can utilize the capacitive nature of the hand or the human body, and therefore this layer is employed as a touch sensor in this type of touchscreen. When the layers are in normal status (without any touch of the hand), the sensor will be given an electric current value is used as reference.
When your fingers touch the surface of this layer, then the reference value is changed because there are electric currents that change the entry to the sensor. Information from these events in the form of electrical current will be received by the sensor to be transmitted to a controller. Position calculation process will start here.
This calculation uses the position of the four point sudur on touchscreen panel as a reference. When the calculation result is obtained, then the coordinates and the position of the touch can be in the know were well. Finally, information from these will be integrated with other programs to run an application.
The new capacitive touchscreen can work if it touches against him came from a conductive object such as a finger. Display screen has a clarity of up to about 90%, making it suitable for use in a variety of purposes interactions in the general public such as in restaurants, electronic kiosks, Point Of Sales locations, etc..
This layer can utilize the capacitive nature of the hand or the human body, and therefore this layer is employed as a touch sensor in this type of touchscreen. When the layers are in normal status (without any touch of the hand), the sensor will be given an electric current value is used as reference.
When your fingers touch the surface of this layer, then the reference value is changed because there are electric currents that change the entry to the sensor. Information from these events in the form of electrical current will be received by the sensor to be transmitted to a controller. Position calculation process will start here.
This calculation uses the position of the four point sudur on touchscreen panel as a reference. When the calculation result is obtained, then the coordinates and the position of the touch can be in the know were well. Finally, information from these will be integrated with other programs to run an application.
The new capacitive touchscreen can work if it touches against him came from a conductive object such as a finger. Display screen has a clarity of up to about 90%, making it suitable for use in a variety of purposes interactions in the general public such as in restaurants, electronic kiosks, Point Of Sales locations, etc..
Simplified definition:
Should the touch of a finger, can not use other objects (nails, stylus, etc.). Because these screens work by using an electrical charge that is your body we. Model of a capacitive touch screen is almost no significant weakness, because this screen is the latest development to replace the resistive screen.
Indoor: very goodAdvantage: the display is not affected by the type of pressure, so even if HP put dikantong not a problem. The use of container pouch models can be considered safe. Its features are not included stylus in his cell phone package. Examples of HP that use capacitive screens are Samsung Corby Touchscreen, iPhone.
Outdoor: very good
C. Surface Acoustic Wave System
Touchscreen technology utilizes ultrasonic waves to detect events at the surface of the screen. On the touchscreen monitor, there are two transducers, sender and receiver of ultrasonic signals.
Also equipped with a reflector which also serves as a deterrent so that ultrasonic waves remain on the monitor screen area.
Both transducers are mounted on all four sides, two vertical and two horizontal. When it touched the touchscreen panel, there is a part of the wave is absorbed by touch, such hindered by the hand, stylus, keyboard, and more. The touch had made changes in the transmitted waveform.
Changes that occur ultrasonic waves received by the receiver and then translated into electrical pulses. Further information had been turned into a form of touch data to be forwarded to the controller for further processing.
Data generated from the touch of this course is the data on your hands that touch the ultrasonic signal. If this is done continuously and there are many ultrasonic wave sensor that touches on the media, then be a touchscreen device that you can use.
This technology does not use a metallic coating material but rather a layer of glass, the touchscreen display of this type could carry up to 90 percent light, making it much clearer and brighter than the Resistive touchscreen.
Without the sensor layer also makes the touchscreen of this type become stronger and more durable because there is no coating that can be damaged when the touch, when exposed to water, oil, dust, and more.
The disadvantage is the performance of the touchscreen can be interrupted by elements such as dust, water, and other solid objects. There is little dust and debris that stick on it then touchsreen can detect it as a touch.
Touchscreen type is suitable for use in a computer training room, the room needs to display information in a very clear and sharp and the presentation in the room.
Multi Touch screen
Multi touch screen is the development of touch screen technology that already exists. Of the meaning of the word "multi" which means a lot, already seen that the advantage of the touch screen can be touched by more than one finger. Multi-touch screen is capable of being touched by the finger of dozens of different people simultaneously.
Multi-touch screen can be used to enlarge, shrink, change position, and move the position of objects on the screen such as images or games. Multi-touch screen is used in cell phones, computers, MP3 players, and so forth.
Also equipped with a reflector which also serves as a deterrent so that ultrasonic waves remain on the monitor screen area.
Both transducers are mounted on all four sides, two vertical and two horizontal. When it touched the touchscreen panel, there is a part of the wave is absorbed by touch, such hindered by the hand, stylus, keyboard, and more. The touch had made changes in the transmitted waveform.
Changes that occur ultrasonic waves received by the receiver and then translated into electrical pulses. Further information had been turned into a form of touch data to be forwarded to the controller for further processing.
Data generated from the touch of this course is the data on your hands that touch the ultrasonic signal. If this is done continuously and there are many ultrasonic wave sensor that touches on the media, then be a touchscreen device that you can use.
This technology does not use a metallic coating material but rather a layer of glass, the touchscreen display of this type could carry up to 90 percent light, making it much clearer and brighter than the Resistive touchscreen.
Without the sensor layer also makes the touchscreen of this type become stronger and more durable because there is no coating that can be damaged when the touch, when exposed to water, oil, dust, and more.
The disadvantage is the performance of the touchscreen can be interrupted by elements such as dust, water, and other solid objects. There is little dust and debris that stick on it then touchsreen can detect it as a touch.
Touchscreen type is suitable for use in a computer training room, the room needs to display information in a very clear and sharp and the presentation in the room.
Multi Touch screen
Multi touch screen is the development of touch screen technology that already exists. Of the meaning of the word "multi" which means a lot, already seen that the advantage of the touch screen can be touched by more than one finger. Multi-touch screen is capable of being touched by the finger of dozens of different people simultaneously.
Multi-touch screen can be used to enlarge, shrink, change position, and move the position of objects on the screen such as images or games. Multi-touch screen is used in cell phones, computers, MP3 players, and so forth.
