Nowadays, touch technology of mobile electrical products is popular in the market of electronic industry touch screen mobile phones have becoming the central challenge position of each big electronic manufacturers. After several years of development, touch-screen technology has become the mainstream technology application. In this field, some entrepreneurs, such as HTC, NOKIA, SONY Ericsson, also work on developing new features and material of touch screen, therefore kinds of touch screen has its own characteristics. In the fierce competition among major manufacturers, the winner will surely is a leader of touch screen field.
The touch screen interface is now a major factor in navigating the user interface. Touch screen is one of the easiest to use and most intuitive of all computer interfaces, a touch screen allows users to navigate a computer system by touching icons or links on the screen. Touch screen mobile phone refers to the phone that uses a touch screen technology applied to the phone screen. When we work with a touch screen instead of a mouse or keyboard, we need use our finger to touch the screen. The pressure from our finger causes conductive and resistive layers of circuitry to touch each other, and changing the circuits’ resistance, point detection device receives the information from our touching, and convert it to touch point coordinate, then send to the computer controller for processing. So when you touch what where, the screen touch smart phone will react accordingly.
According to the touch screen material, the touch screens are only divided into resistive screens and capacitive touch screens. Resistive screen composes of multiple layers, which use two active layers: a flexible plastic layer on top of a rigid plastic or glass layer, with insulated spacers in between. The capacitive screen uses a single metallic-coated glass panel, which can respond to the electrical properties of the human body. When a finger touches the screen, it draws a tiny amount of current. Even thought, capacitive touch screens are always the mainstream in the present market. As a resistive touch screen responds when pressure is applied to its surface, causing the layers to touch. This means that a resistive touch screen requires more pressure than a capacitive touch screen, so users may feel as though they have to press much harder on the screen to get the phone to recognize their input. Capacitive touch screens also are the only ones capable of multi-touch, which allows the display to recognize more than one point of contact.
In general, capacitive touch screen is better than resistive touch screen, even the cost will be much more expensive than resistive touch screen .However, handgiftbox.com still suggest you to buy a touch screen phone with capacitive touch screen. Clicking handgiftbox.com to get more information about touch screen phones.
- Tecno D5 Capacitive Touch Screen (biztechclass.com)