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Anonymous users2024-02-07Resistive screen... The capacitive screen can be multi-touched... Nokia currently only N8, C6-01, C7, E7, X6 are capacitive screens... Everything else is a resistive screen.
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Anonymous users2024-02-06Resistive screen, resistive screen is a touch screen that uses pressure sensing for control. The main advantage is that it can be touched with any object, can be used to write and draw, and the resistive screen is completely isolated from the outside world, not afraid of dust, water vapor and oil; The disadvantage is that the outer layer of the composite film used in the resistive screen is made of plastic material, and people who don't know it may scratch the touch screen if they use too much force or use a sharp device to touch.
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Anonymous users2024-02-05Resistance. The low end of the nokia is all resistive screens.
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Anonymous users2024-02-04The Nokia 5232's touch screen is resistive.
The Nokia 5232 has an inch 16.7 million color full touch display with a resolution of 360*640 pixels, which has an excellent display effect.
On the hardware, the machine adopts the S60 version 5 operating system, and the processor frequency is 434MHz, which can open and run programs smoothly. In addition, the camera also has a 2-million-pixel camera, which is a bit backward compared to the current mainstream products, but the shooting effect is not bad. Support for up to 16GB SD card expansion also provides more room for entertainment features in this sleek phone.
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Anonymous users2024-02-03Nokia capacitive touch screen is the touch screen used by Nokia brand is a capacitive touch screen, and the working principle of capacitive touch screen is.
Capacitive touch screen technology works using the body's current sensing. The capacitive touch screen is a four-layer composite glass screen, the inner surface and the interlayer of the glass screen are each coated with a layer of ITO, the outermost layer is a thin layer of silicone glass protective layer, the laminated ITO coating is used as the working surface, four electrodes are drawn out at the four corners, and the inner layer ITO is the shielding layer to ensure a good working environment. When the finger touches the metal layer, due to the electric field of the human body, the user and the surface of the touch screen form a coupling capacitance, which is a direct conductor for high-frequency currents, so the finger draws a small current from the contact point.
This current divides from the electrodes on the four corners of the touch screen, and the current flowing through these four electrodes is proportional to the distance of the finger to the four corners, and the controller derives the position of the touch point by accurately calculating the proportion of these four currents.
To achieve multi-touch on the capacitive screen, it relies on the electrodes that increase the mutual capacitance, simply put, the screen is divided into blocks, and a group of mutual capacitance modules are set up in each area to work independently, so the capacitive screen can independently detect the touch situation in each area, and after processing, simply realize multi-touch. [1]
How capacitive touch screens work[2].
Capacitive technology touch screen CTP (Capacity Touch Panel) works using the body's current induction. The capacitive screen is a four-layer composite glass screen, the inner surface and the interlayer of the glass screen are each coated with a layer of ITO (nano indium tin metal oxide), the outermost layer is only a thick silica glass protective layer, the interlayer ITO coating is used as the working surface, the four corners lead to four electrodes, and the inner ITO is the screen layer to ensure the working environment. [3]
When the user touches the capacitive screen, due to the electric field of the human body, the user's finger and the working surface form a coupling capacitance, because the working surface is connected with a high-frequency signal, so the finger absorbs a very small current, this current flows out from the electrodes on the four corners of the screen respectively, and theoretically the current flowing through the four electrodes is proportional to the distance from the finger to the four corners, and the controller obtains the position through the precise calculation of the four current proportions. It can achieve 99% accuracy and has a response speed of less than 3ms. [4]
Projected capacitive panel touch technologyThe projected capacitive touch screen is etched on two layers of ITO conductive glass coating with different ITO conductive line modules. The etched graphics on the two modules are perpendicular to each other, and they can be seen as sliders with continuous changes in the x and y directions. Since the X and Y architectures are on different surfaces, they form a capacitor node at their intersection.
One slider can be used as a drive line, and the other slider can be used as a detection line. When a current passes through one of the wires in the drive line, if there is a signal of a change in capacitance from the outside world, then it will cause a change in the capacitance node on the other layer of wires. The change in the detected capacitance value can be measured by the electronic circuit connected to it, and then converted into a digital signal by the AD controller for the computer to calculate and process to obtain the (x,y) axis position, and then achieve the purpose of positioning. [4]
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Anonymous users2024-02-02Capacitive screen, mobile phone capacitive touch screen is better, industrial capacitive screen customization expert, 183 number, the middle four digits are 2005, and the back four digits are 9375. All touch.
Pros: Capacitive touch screens only require touch, and no pressure is required to generate a signal.
Capacitive touch screens require only one or no correction after production, while resistive technology requires conventional correction.
The capacitive solution has a longer lifespan because the parts in the capacitive touchscreen do not need to move. In a resistive touch screen, the upper ITO film needs to be thin enough to be elastic so that it bends downward to contact the ITO film underneath.
Capacitive technology is superior to resistive technology in terms of light loss and system power consumption.
The choice between capacitive and resistive technology depends mainly on the object touching the screen. If it is a finger touch, a capacitive touch screen is a better choice. If a stylus is required, whether plastic or metal, a resistive touch screen will do the trick.
A capacitive touch screen can also use a stylus, but a special stylus is required to match.
Surface capacitive can be used for large touch screens, and the combination is also low, but it cannot support gesture recognition nowadays: inductive capacitive is 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 for the user, so the overall operating expenses of the manufacturer can be further reduced.
Capacitive touch screens can support multi-touch technology, and unlike resistive touch screens, they are unresponsive and less prone to wear and tear.
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Anonymous users2024-02-01The landlord's problem is too much! Embarrassment! You have to ask about capacitive screens and resistive screens, absolutely capacitive screens are good.
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Anonymous users2024-01-31Apple is a capacitive touch screen, just touch, and Nokia needs to give a force, touch and press! The explanation is not very good, forgive me, 5230 is cost-effective, 5530 more wifi, buy 5800 if you have money, although it is an excessive machine, I have been waiting and watching recently, but I am considering the E series business jet.
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Anonymous users2024-01-305230 5233………They are all resistive screens, not capacitive screens. The resistive screen can only be operated by one finger, and the capacitive screen can be operated with multiple touches.
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Anonymous users2024-01-295233 is a system of S60V5, it is a resistive screen! Hope it helps!!
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Anonymous users2024-01-28If you click on it with your fingernail, it will be a resistive screen.
To put it simply, a capacitive screen is more sensitive than a resistive screen, and it is a touch screen in the true sense. However, capacitive screens and resistive screens cannot be said to be good and bad, depending on their preferences. The capacitive screen is sensitive, so the operation on the screen only needs to be touched with your fingers and gently sliding, so generally mobile phones with capacitive screens do not have stylus, resistive screens, and you need to work harder on the resistive screen, most of the stylus we see are resistive screens, such as Nokia's latest flagship product N900 is a resistive screen, and Nuoji 5800 and other mobile phones such as Apple iPhone and Samsung i8910 are capacitive screens, and capacitive screens have stricter use conditions than resistive screens, such as temperature, Humidity and other theoretical, the use of capacitive screen ambient temperature requirements in 0-35, resistive screen in -15 to 45 This may be a bit exaggerated, and there are no such strict requirements in actual use, otherwise people's iphones will not be sold in slightly cold or hot countries, hehe.
To put it simply, the sensitivity is different, the resistive type is not as sensitive as the capacitive type, and it needs to be used more forcefully than the capacitive type to change the resistance value (impedance), while the capacitive type only needs to be gently pressed or approached to change the capacitor capacity (capacitive reactance).
There are a lot of mobile phone products you require in the world, and now there are many functions of digital products mainly in terms of quality, so you should choose some *** brands, although your psychology is not very high, but big brands are not necessarily more expensive than small brands, and the quality is more, here I will introduce you to a few cost-effective brands for your reference: Apple Nokia Samsung Sony Motorola and so on, eight major mobile phone brands are found on the portal of the top 10 brands, If you want to know more about the rankings, you can also go to the Maigou Brand Inquiry Network to find the answers you want.
The system backup of the touch screen is very simple, there is no need to pull out the dp line, the two ways, if you configure a button when the touch screen is configured, the function of the button is to exit the touch screen operation, you can exit directly, you can do backup, and there is the touch screen in the field The power terminal of the touch screen is unplugged and reinserted into the start of the backup. Unplugging the DP line PLC will report an error, as long as you add the corresponding empty OB block to the program, there will be no downtime. **Description:
I think this kind of problem can basically only be considered unlucky......Because of questions like this, the salesperson may perfunctory you, or kick the ball ......But you still have to take it back to the mobile phone you bought, and ask the salesperson to take a machine that is exactly the same as you, and put the two machines together to compare, so that he can see the problem, if you compare other models, it will be no fun, because each model of mobile phone itself must be different ......Then he'll ask you to leave your phone for ...... testingYou just wait for the results......Licensed cargo planes are sometimes so troublesome, and if there is a problem, they have to be tested by the manufacturer before ......they can be replacedSo basically I buy a refurbished machine (the board has not been repaired), no matter what the problem can be solved, fast :)