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Dongguan LuPhi Electronics Technology Co., Ltd.
Membrane Switches, Membrane Keypads, Overlays, Rubber Keypads, Integrated Assemblies Manufacturer | LUPHITOUCH
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OEM High Quality Capacitive Touchscreen Panels | LTTP005

Dongguan LuPhi Electronics Technology Co., Ltd.
Dongguan LuPhi Electronics Technology Co., Ltd.
City: Dongguan
Province/State: Guangdong
Country/Region: China
Tel: 86-769-81619505
Contact Person:
Mr Jason Young

OEM High Quality Capacitive Touchscreen Panels | LTTP005

Place of Origin : CHINA
Brand Name : LUPHI
Certification : ISO9001
Model Number : LTTP005
MOQ : 500 pcs
Price : USD6.50
Packaging Details : Each piece pluged on foam sheet, then packed in a foam box, then in a hard carton box
Delivery Time : 18-22 days
Payment Terms : T/T In advance
Supply Ability : 1000000pcs/month
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A touch screen is an input device normally layered on the top of an electronic visual display of an information processing system. A user can give input or control the information processing system through simple or multi-touch gestures by touching the screen with a special stylus/pen and-or one or more fingers. Some touch screens use ordinary or specially coated gloves to work while others use a special stylus/pen only. The user can use the touch screen to react to what is displayed and to control how it is displayed (for example by zooming the text size).


The touch screen enables the user to interact directly with what is displayed, rather than using a mouse, touchpad, or any other intermediate device (other than a stylus, which is optional for most modern touch screens).


Touch screens are common in devices such as game consoles, personal computers, tablet computers, and smart phones. They can also be attached to computers or, as terminals, to networks. They also play a prominent role in the design of digital appliances such as personal digital assistants (PDAs), GPS navigation devices, mobile phones, video games and some books (E-books).


The popularity of smart phones, tablets, and many types of information appliances is driving the demand and acceptance of common touch screens for portable and functional electronics. Touch screens are found in the medical field and in heavy industry, as well as for automated teller machines (ATMs), and kiosks such as museum displays or room automation, where keyboard and mouse systems do not allow a suitably intuitive, rapid, or accurate interaction by the user with the display's content.


There are a variety of touch screen technologies with different methods of sensing touch. In LUPHI we mainly provide the resistive touch screen panels and capacitive touch screen panels.


Resistive Touch Screen Panels

A resistive touch screen 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 is touched) 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.


Resistive touch is used 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 (separated by an air gap) placed over the screen.


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