The touch panel of the smartphone does not respond!Factors that deteriorate sensitivity and how to deal with it yourself

The cold season.If you try to operate the smartphone that you took out while freezing, have you ever experienced "What? The touch panel reaction is slow!

It seems that this phenomenon occurs because it dries in winter and is more likely to generate static electricity.

So why does that happen?

Ask KDDI's "Trouble Buster" and Kenichi Oasasa and Keiwa Yahiro explain the causes and countermeasures.

Does the touch panel react to slow down in winter?

――Do you have any inquiries about smartphone troubles in winter?

Yahiro "There are many inquiries that" touch panels are difficult to respond ".Specifically, "there is an incoming call but it can not be done without reacting", "I can't send an email because the send button of the email does not respond", and "I can't operate typing well"."

―― What is the cause?

Omasa: "Currently, many smartphones are used in a touch panel called" electrostatic capacity system ".What kind of mechanism is that a weak current generated when a finger touches the screen is called an electrostatic capacity (charge).The display has an electrode column and a line on the vertical and horizontal, respectively, and the coordinates are judged by touching them with fingers, but if you continue to use your smartphone in winter, you can use your smartphone to dry and use clothing friction.One of the causes is that the sensor does not work properly because the charge condition on the surface of the display changes.The other is drying in winter.The reason is that drying causes the water content of the fingertips to weaken the power of passing electricity, which slows down the touch panel."

What is the countermeasure when the reaction becomes slow?

――There is a reason why the touch panel is difficult to respond in winter.Is there any countermeasure?

Omasa "As a countermeasure, (1) Improves the drying of the finger. ②" off -on "the smartphone screen.This often revives the reaction of the touch panel."

――It can be improved just by “off -on” on the smartphone screen.

Omasa "If you put your smartphone in your pocket during the dry winter season, the charging of the glass part of the smartphone will be more appliances than usual. If you operate the smartphone in this state, the touch panel.It will be difficult to determine the coordinates. In such a case, in the smartphone of the touch panel of the "electrostatic capacity system", only the display is "off -on", and when the smartphone is not touched, the amount of zodiac part of the smartphone is reloaded.Will be done."

--So that's it.When the touch panel reaction is bad, the display may be pushed strongly, but that doesn't make sense.

Omasa "In the case of a" resistance membrane method "touch panel that detects the position of the screen pressed with a finger or touch pen, etc., the pressing force was important, but in recent years," static electricityIn the case of a "capacity system" smartphone, remember that resetting the "off -on" button on the display will return.Another point, the area of the finger in contact is set so that it does not react unless it is a certain size, so it is important to touch it firmly with the belly of the finger rather than pressing strongly."

――Are there any other cases where touch panels are difficult to react besides drying and static electricity in winter?

Yoshihiro "In some inquiries," Touch panel is difficult to react ", there are cases where the touch panel reaction was poor because there was a cache in the smartphone and the CPU was overloaded."

* Cache is a data that is temporarily stored in an early -read area on a personal computer or smartphone to reuse the data once used.If you accumulate in large quantities, the memory will be loaded and the operation will slow down.

――The use of the app and the long -term surfing cache affect the touch panel.

Yoshihiro "To avoid such troubles, we recommend au's" Usage Support "app.If you download this app, you can clear cash and various diagnoses with one app.。Before thinking, "Is it a breakdown?", I think it will be useful as your own judgment.* How to use support apps can only be used by customers who have au contracts or UQ mobile contracts.* The cash clear function is only for Android smartphones.

――In many people who put a protective sheet on smartphones these days, are there any effects on the touch panel by attaching a protective sheet?

Omasa "Currently, on the premise of putting a protective sheet, in most cases, the touch panel is increasing the sensitivity of the touch sensor so that the touch panel reacts at a certain thickness. However, recently the display is a plan.There are also models that are curved, so even if you put a protective sheet, it may be easy to peel off, or if you peel off and paste it, bubbles may enter. If air enters between the protective sheet and the display,Please note that the sensitivity of the touch sensor may be worse. "

Other inquiries like this

――Are there any points to note when using a smartphone in winter in addition to the touch panel?

Omasa "In terms of static electricity troubles, there is also a phenomenon that white horizontal lines appear thinly on the liquid crystal. This is not a failure, but it is caused by the accumulation of charges between glass and the LCD due to static electricity.It is a phenomenon. "

――What should I do if the striped pattern appears?

Omasa "Improve by keeping the display for 1 to 2 minutes without touching the display."

――In the old and new models, are old models more likely to have static electricity effects?

Yahiro "The newer model is taken, but there are some places that cannot be said that it will not happen at all."

―― That's right.

Omasa "In addition, there is also an inquiry of fingerprint authentication. The mechanism of reading both touch panels and fingerprint sensors with static electricity is almost the same, so the fingerprint may not be ready to unlock. It may not be possible to unlock it.In the winter, the fingerprint sensor is ineffective in the winter, and the number of cases where you are used to fingerprint authentication and forget your password is increasing. Please do not forget to check your password in winter."

Is it a breakdown?If you think, check

How was the problem that the touch panel of a smartphone that occurs frequently in winter is difficult to respond?If you think "the touch panel is difficult to respond"

Still, if the bug continues, try a cash clear with the "Usage Support" app before heading to the store.First, let's try to check your smartphone yourself.