Mobile phone LCD screen 150, mobile phone LCD screen

LZ's situation is: the screen is flooded, and it can still be used after drying, but there is a line on the screen at the previous crack.

My analysis is: you first see if the top of the screen is cracked or the one inside the screen is not lit. You can see this at once.

If the screen is simply cracked, you can only change the screen for fear of affecting the vision. But according to the landlord's account, I think it should be affected by the water seeping in. In fact, in order to prevent water from damaging the mobile phone chip, there is a waterproof membrane on the back of the screen, and the water is blocked, so it generally has no effect on the mobile phone after drying, and it can continue to be used.

Yours should fall into this category.

Now the question is: did your phone screen have a crack before it entered the water? If not, your screen is flooded and affects the circuit, and it can be repaired.

If there is, your screen is a crack plus water ingress affects the circuit. In any case, the circuit can be repaired, and the crack can only be solved by changing the screen.

My suggestion: LZ take the warranty card to the after-sales service and let him disassemble the machine (disassembly is definitely inevitable), and determine which one is broken. You don't repair him generally without charge.

If he says that he can fix the display problem, but he can't fix the crack, and the price is still very cost-effective, you only repair the circuit and not the crack (because a simple screen crack will not have much effect, but be careful not to get into the water again). If he said, it can't be repaired, so he can only change the screen, but it's very expensive, and I suggest that LZ still don't repair it. After all, you've been using it for several years, and even if you get a new screen, battery, keyboard contact, or something, you're at retirement age.

You'll be able to survive as long as you want, and then get a new one when you can't use it. It's a good use, and your parents won't object to it. The above is my personal experience.

I hope it will help you and hope that your problem will be solved soon. ^^

If it is a straight line caused by water ingress, then you just need to use a hair dryer to dry the water vapor inside (you can try, the wind should not be too hot, and the distance should not be too close).

In addition, there is a situation where the screen of the mobile phone is broken, my mobile phone used to fall, and the screen has a straight line, and there are bright spots, and then the screen is changed.

The above says leakage, you can wash it, you can also try it.

The resistance of the liquid crystal contact changes or shorts due to water ingress.

Try unplugging the battery, wrap it in plastic wrap with desiccant (the one in Poly seaweed is recommended) and put it in the refrigerator for 24 hours, and see if it returns to normal after removing it (hint: do not insert the battery immediately after taking it out of the refrigerator, please wait for the phone to return to room temperature).

If the above method doesn't work, please try to ask your dad to give you 150 yuan to go to the repair point to replace the screen.

Yes, but it is recommended that you wait a week or two first. Because it is possible that the liquid crystal is squeezed to both sides, there is a chance that it will improve a little.

Don't think about it.,You see if the touch screen can still be used.,If you can.,Congratulations first.,The touch screen isn't broken.。。。

Then mourn it.,The inner screen is broken.,It's expensive to count the inner screen.,If your mobile phone is a miscellaneous brand.,Just buy a new one.,80 yuan should be able to change to make do.。

It is caused by the leakage of the capacitance or resistance of your mobile phone screen, which can be repaired, and it should be fine when you take it to the mobile phone repair point for cleaning, and it will not cost a lot of money.

If that line has been there since you found it, then 90 is a broken screen.

100 yuan can be repaired and replaced with a new screen. Bargain with the boss who repairs the phone.

It will definitely be fixed

Go to the mobile phone store and ask, you shouldn't need 150

Poor boy, I don't have any money, I should change it, thank you.

Take the most common iPhone as an example and tell you about it.

The first layer is the outermost layer, we repair the mobile phone is generally called the cover plate, as the name suggests is the board that covers the screen, the main role is to protect the screen, the legendary Corning gorilla, sapphire, oleophobic layer are the process of this layer.

The second layer of glue is mainly filled with high-transparency optical glue, the purpose is to isolate the cover plate and the lower layer, and play a buffering role.

The third layer of polarizers, this is very professional, the popular point is that the screen emits white light, this layer is composed of countless polarizers, polarizers can change the color of light, forming pixels with color, without this, you can only see a piece of white light. The first layer above is collectively referred to as the outer screen.

The fourth layer is a capacitive touch screen. There are capacitive monitoring points arranged horizontally and vertically on the touch layer in response to the touch of the finger. If this layer is broken, it will not be easy to touch.

The fifth layer of liquid crystals. This is the core of the screen, and basically all the technical core and innovation of the screen revolves around this layer. Now there are several main applications:

SLCD, OLED, IPS, ASV, NOVA, major manufacturers are developing applications based on these technologies. Among them, the flexible OLED screen is now the most popular, characterized by self-luminous and printed flexible layer.

The sixth layer is the backlight layer, which is used by LED as the light source, and the light is evenly distributed to the screen through the light guide film to form a backlight. The legendary light leakage is caused by the poor quality of this product.

The seventh layer is a special layer, and Apple's 3Dtouch pressure-sensitive screen is implemented on this layer.

From the fourth layer to the end, it is generally referred to as the outer screen. A thin screen with so many layers is the power of technology!

The common faults and handling methods of the mobile phone LCD screen are as follows:

1) The LCD screen is mechanically damaged (large areas of black blocks, cracks, scratches, etc.). In this case, it cannot be repaired, and can only be solved by changing the screen.

2) The LCD screen does not have any external damage, but there is no display either. For this kind of phenomenon, you should first make sure that the main part of the mobile phone is working properly before you can start to check it (the main unit is working normally, just press the power button and dial "112"). First, check whether all pins are in good contact (with a multimeter), and for the conductive rubber type, check the conductivity of the conductive rubber (measure the conductive ends of the strip with the on/off of the multimeter).

After ensuring that all of the above are normal, the power can be restarted, and if it is still not displayed, it can be checked by measuring the voltage and waveform.

3) The LCD screen has a display, but there is a lack of pen and less drawing. For parallel port type LCDs it may be due to individual data lines d0?d7(d8?

d15) Poor pin contact. But after eliminating these faults, it can only be said that the LCD module is broken, and you can gently vibrate the module a few times and try again. For serial port type LCDs, the fault can only be eliminated by replacement.

4) The LCD screen is sometimes displayed, sometimes it is not. This kind of fault is generally a contact problem, and it should be checked whether the contact is good.

5) The LCD screen display is too dark or too faint, and the backlight is not bright. Such faults can simply be addressed by addressing the VLCD and backlight voltages they are suppliing.

6) The LCD screen has a display, but the display is garbled. This type of failure is generally due to the quality problem or poor contact of the machine.

Common faults and solutions for displays:

Common fault 1: When the computer is first turned on, the screen of the monitor shakes very much, and sometimes even the icons and text cannot be seen clearly, but it will return to normal after a minute or two.

Solution: This phenomenon mostly occurs in wet weather, which is caused by moisture inside the display. To solve this problem completely, you can use the moisture-proof sand from the food packaging to string it with cotton thread, then open the back cover of the monitor and hang the moisture-proof sand near the tube socket at the end of the CRT neck.

In this way, even in wet weather, the above "problems" will not occur again.

Common fault 2: After the computer is turned on, the monitor only hears its sound and does not see its painting, and it is pitch black. It takes dozens of minutes for the screen to appear.

Solution: This is caused by leakage of the visor header, and the header must be replaced. Disassemble the back cover to see a small circuit board at the end of the picture tube, the header is soldered to the board, carefully unplug this board, solder the header, go to the electronics store to buy the same header, and then solder the header back to the board.

At this time, do not rush to put the circuit board back in, first find a small piece of sandpaper, and be very careful to display.

Wipe the protruding legs behind the tail of the elephant tube with sandpaper. In particular, pay attention to the oxide layer on the pins, if you don't wipe it cleanly, it will soon become old**. Put the board back in and you're done.

Common fault three: There are always lingering interference clutter or lines on the monitor screen, and there is also annoying noise in the speaker.

Solution: This phenomenon is mostly caused by the poor anti-interference of the power supply. If you are too lazy to do it, you can replace it with a new power supply.

If you have enough hands-on ability, you can also try to replace the filter capacitor in the power supply yourself, which often works; If the effect is not obvious, you can replace the switch tube together.

Common fault 4: Gray screen of display.

Solution: This problem is mostly caused by the graphics card. If it's a new graphics card, it's probably that the card is of poor quality or incompatible, and then there's that the correct drivers haven't been installed.

If the video memory is added to the old card, it may be caused by the difference between the newly added video memory and the original video memory model.

Common fault 5: The display screen is black.

Workaround:1If the memory module is loose, just unplug it and wipe off the gold finger, remember to pull the power cord off, otherwise sometimes there will be residual power that will break the memory and the motherboard.

2.The black screen caused by the broken high-voltage board or power board of the display, this fault should be sent for repair, and you should not engage in it.

3.The graphics card is broken, or there is a problem with the monitor's data cable.

Our side is a manual service, it will take time, you can wait for five minutes

Mobile phone screen FAQs.

Touch swiping is not flexible.

The function takes care of the other, and the handwriting switch is not smart.

The touch screen becomes a "big flower face."

The touch screen point is not accurate enough.

Handwriting recognition is not strong enough.

The question is the standby state after the power button is pressed.

Ask the other positions that are black on both sides.

It is recommended that you go to a repair shop for testing.

But it's not a big deal

The best mobile phone LCD screen brands are these.

1. It's hard to say the largest manufacturers, but there are four quite large: Japan's JDI, Sharp; South Korea's Samsung, LG.

2. At present, there are five companies that are recognized as having the best screen: Apple, Nokia, Samsung, LG, and Sony. Sony's screen is OK from low-end to high-end, and high-end screens from other manufacturers have advantages.

3, The best display effect in LCD is ASV (Sharp), IPS.

4, the best OLED is Samsung's AMOLED, almost all OLED screens are produced by Samsung, Sony OLED is generally used in large panels.

Samsung has improved SA into SAP and many other arrangements,At present, the color reproduction of the OLED screen is not as good as IPS,ASV,However, OLED is an important branch of the display,Samsung is working color。

From the perspective of industry technology and applicability, the end consumer, especially the majority of mobile phone users, we recommend using LCD screens. Why? Please refer to the following:

1.At present, the mobile and application displays on the market can be divided into LCD and OLED in terms of manufacturing process.

It is the mainstream display**, and the performance gradient is large. There are copycat machine screens with very low resolution, such as general TN screens; There are LTPS screens like LG customized for iPhone, etc., which are of medium and upper quality; There are oxide film screens up to 400ppi, etc.

3.The LCD is enough to display on the phone!!

It has not been used for a long time in mobile phone display, but the technical field has given full affirmation, especially its correction of the shortcomings of LCD products. However, OLED has gone through a long R&D cycle, and the current progress is slow, far from the speed at which LCD replaced CRT in the past. Due to the insurmountable defects in use, the current application is very limited, such as short life, uneven color, immature technology, etc.

5.At present, various display chip factories have OLED projects.

6.At present, the largest OLED manufacturers are the bankrupt Kodak and Samsung Mobile, but Samsung's ace phones all use LCD.

7.My personal opinion is that the applicability should be good! A car doesn't have to be the fastest, clothes aren't the most expensive, and a house isn't the highest. However, everyone is encouraged to buy more OLED products to test their sexual tolerance.