About touchscreen phones, how to implement the touch screen on the phone.

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Nokia 5230 is the third touch smartphone launched by Nokia, its three dimensions are 111, the screen is equipped with an inch 16 million colors 360 640 pixels touch screen, a built-in 2 million pixel camera, the resolution supports up to 1600x1200 pixels**. The Nokia 5230 is equipped with the Symbian S60 version 5 operating system, 434MHz ARM11 architecture processor, which can run third-party software well. Support GPS function, support A-GPS network assisted navigation function and the latest version of OVI map, built-in gravity sensor and distance sensor.

The working principle of resistive touch screen is mainly through the principle of pressure sensing to achieve the operation and control of the screen content, this touch screen body part is a multi-layer composite film that is very compatible with the surface of the display, in which the first layer is the bottom layer of glass or plexiglass, the second layer is the partition layer, the third layer is the surface layer of multiple resins, and the surface is also coated with a transparent conductive layer.

It is then covered with a layer of smooth, scratch-resistant plastic with a hardened outer surface. The conductive layer and glass layer sensor on the surface of the polylipid surface are separated by many tiny compartments, and when the surface layer is pressed down, the controller simultaneously reads the corresponding current from the four corners and calculates the distance of the finger position.

This type of touch screen uses two highly transparent conductive layers to form a touch screen, with the distance between the two layers being only microns. When the finger touches the screen, the two conductive layers that are usually insulated from each other have a contact at the touch point, because one of the conductive layers is connected to a uniform voltage field of 5V in the direction of the y-axis, so that the voltage of the detection layer changes from zero to non-zero.

After the controller detects this connection, it converts the A D and compares the obtained voltage value with 5V, which can obtain the Y-axis coordinates of the touch point, and the X-axis coordinates are obtained in the same way, which is the most basic principle common to all resistive technology touch screens.

The touch screen of a mobile phone, also known as the touch panel, is an inductive liquid crystal display device that can receive input signals such as contacts.

When the graphic buttons on the screen are touched, the haptic feedback system on the screen can drive various connection devices according to the pre-programmed program, which can be used to replace the mechanical button panel and create vivid audio and video effects through the Joyce Qin LCD screen.

In 1971, Dr. Samuel Hurst invented a touch sensor, which was the prototype of the touch screen. Three years later, he designed the first transparent touchscreen. In 1977, touchscreen technology was greatly improved, and it is still widely used and rapidly evolving today.

If you are using a Huawei phone, the touch screen will automatically jump and touch the screen automatically, and you can do the following methods:

1.If the problem of random jumping and ghost hands occurs only when charging with a third-party charging device, it may be caused by the unstable power supply voltage, or it may be due to the interference of the charging signal on the touch screen signal, resulting in the floating of the touch screen reporting point. It is caused by the interference of external factors, please use the standard charger and data cable to try to charge first, if there is no problem, it may be a problem with the third-party charging equipment; It is recommended that you use the original charger in scenarios where you need to charge and use touch control, and you can remove the protective case to improve the touch experience.

2.If the problem of jumping or ghost hands occurs when charging only in a fixed place, it may be caused by the unstable power supply voltage, and it is recommended that you change the charging to another place (replace the power supply).

3.If the touch screen automatically jumps and the screen is automatically touched (ghost hand) when your device is placed on a wireless charger for charging, please check whether the device supports wireless charging.

4.Please check whether there is a microwave oven, induction cooker and other high-intensity magnetic fields nearby, staring at the high-intensity magnetic field will cause interference to electronic components, resulting in abnormal touchscreen jumping.

5.Please scroll down the status bar to view in the shortcut settings menu, or search and enter "NFC" in "Settings" to check whether the NFC function is enabled, NFC will automatically open the specified application after scanning out a specific scene.

6.Please check whether you have installed the "one-key lock screen" application, some third-party "one-key lock screen" software will conflict with the system's own lock screen, resulting in random jumps, such as jumping from the cover to the lock screen interface, camera interface, etc. It is recommended to uninstall third-party software such as "one-click lock screen".

If the above methods still do not solve your problem, we recommend that you back up important data in advance (third-party applications such as QQ and WeChat need to be backed up separately), and bring your mobile phone, standard charger, data cable, and relevant purchase vouchers to a nearby Huawei Luyan customer service center for testing.

Huawei Customer Service Center.

Boarding service. Repair spare parts** inquiry.

1. Although the current touch screen is very hard and wear-resistant, static electricity, an extremely unstable factor, can easily break through the capacitive screen. Although the surface of the capacitive screen will be added with a layer of antistatic treatment, it does not mean that it can withstand the instantaneous voltage brought by the static electricity of the human body. 2. The high temperature mobile phone screen is afraid of high temperatures, when the surface temperature of the screen reaches about 40 degrees, it may cause drift, and the capacitive screen will reduce the life of the capacitive screen if it is at this high temperature for a long time.

Therefore, in the scorching summer, try to avoid exposing the mobile phone to the outdoors when outdoors, and playing games for Android phones for a long time will also cause high temperature of the machine. If you're in the heat, the best thing to do is to let him cool. 3. Oil and sweat and other mobile phone screens are very afraid of conductive media such as oil and sweat, and their coverage on the screen will make the mobile phone screen unresponsive or screen drift, so if you find oil, sweat and other substances, you should wipe them dry as soon as possible.

4. The working principle of the voltage capacitive screen is that when the finger touches the capacitive screen, it will take away the point current on the screen, and the screen will evenly transmit the equal current from the four corners to fill the position of the paper press, and use this to do the positioning, so in the case of unstable transmission voltage, the effect of drift will appear, so try to avoid charging after the power is less than 20%, if it is lower than the best to charge immediately. And it's better to charge the mobile phone battery as you use it than to flush it when it's exhausted. 5. Put a small magnet on the screen in the magnetic field, and you can soon find that the capacitive screen has a temporary failure, which will cause permanent failure after a long time.

Therefore, try to avoid close contact between the phone and the speaker or other magnetic objects.

Nowadays, touch technology has begun to become popular in the mobile phone market, and touch screen mobile phones have become the focus of competition among major manufacturers. So what are the characteristics of touchscreen phones? Let's take a look at the answers.

1. Touch-screen mobile phone refers to a type of mobile phone that uses touchscreen technology to apply the technology to the mobile phone screen. There is no clear line between touchscreen phones and other mobile phone categories. A touch-screen mobile phone can also be called a straight phone, a smart phone, a camera phone, and a mobile phone.

2. Features. The biggest feature of the touch screen mobile phone is its large screen, which can bring visual enjoyment to the user, both in terms of text and image. However, due to the large screen, the volume is also relatively large, and the space occupied for carrying a touchscreen mobile phone is also large.

At the same time, the touchscreen phone can be operated with your fingers, replacing the keyboard.

That's it for a description of what are the characteristics of touchscreen phones.