Dont Waste Money on a Phone Screen Protector

My phone is an Apple iPhone 11. Its a beautiful phone and a major upgrade from the iPhone SE that was in my pocket for three years. The only issue I have is that I am still not accustomed to the larger size, and that has caused me to drop my phone far more often than any other phone I have owned.Well, thats not entirely true. Years ago I had Nokia 1610. I was walking in Boston on my way to a client.

I was also expecting a phone call from another client concerning a potentially very profitable job. When my phone rang, I yanked it out of my jacket pocket, lost my grip, and sent the still ringing phone bouncing down Boylston Street. I chased after it and kicked it, sending it skidding down the sidewalk again.

I wish I had a video of that; it would do very well on YouTube.I also managed to throw that phone across several parking lots getting out of my car while fumbling for it in my pocket. It was a tough phone, though, and never broke.

I think I dropped the SE four times if my memory is correct. It didnt break. I suspect the toughness was more due to its lighter weight than anything else, but it was gratifying to pick it up from the sidewalk and find nothing wrong.The brand new iPhone 11 fell from my hands when I took it out of its box, before I even turned it on.

It hit a table first, bounced to a chair, and then landed face down on the floor. It was torque that fooled me: I was used to grabbing my SE toward its bottom. The SE is very light: there isnt much weight to pull it.

Not so with the iPhone 11, it rotated and wrenched right out of my fingers. I made a vow to always grasp in the middle from then on, but that message never fully reached my fingers, so I continued to fumble the phone often.It doesnt fit my pocket as well as the smaller SE.

I have dropped it several times while meaning to put it into my pants or jacket, and it frequently falls out of my coat when I get in my car.The most recent fall was while weighing myself on our smart scale. I should not care a bit about the extra seven ounces or so that the phone and its case would add to the scale, but I foolishly tried to put it down on a nearby table.

I misjudged, and the phone fell edge first on to the glass scale. The impact noise was loud enough that I expected to find the scale, the phone, or both shattered, but neither was damaged.That lack of damage surprised me. Apple does advertise the iPhone 11 models as having the toughest glass in a smartphone, but thats advertising, and there is always puffery involved.

Thats why people put on screen protectors, right? I had a screen protector on my iPhone 11, and the protector did crack, but when I took it off, the phone itself was undamaged. The odd thing was that it shouldnt have been pristine. It should have already had a scratch on it but it did not.

Waking Up is Hard To DoMy new iPhone 11 had spent its first night with me on my bedroom side table. The battery life on these phones is incredible, so I didnt bother to charge it. When the alarm went off the next morning, I reached for the phone and sent it flying off the table to skid across our hardwood floor and bury itself in the opposite corner of the room.

I was off to a great start.

I groaned, got out of bed, and walked to pick it up. Disgusted, I saw that the screen was scratched. Later that day, I bought a glass screen protector and installed it.

I never had a screen protector on my SE, and it never broke or scratched, so if the 11s glass is even stronger, why did this happen?I had a theory: one way to make the glass less likely to break is to soften it. Softer glass wont shatter as easily, but perhaps it would be easier to scratch? I didnt know, but I put the protector on; better safe than sorry.Cell phone glass will not scratch easily. When I worked at an Apple store, Id shock customers by attacking my SEs screen with my keys.

They never made a mark, but that slide across my bedroom store convinced me not to try the key test with my new iPhone.Sand will scratch the screen because sand can contain tiny little diamonds and other hard minerals. If youll be carrying sand with your phone, you might want a screen protector.

You may also want a privacy shield version if you want to keep what you are looking at safe from nearby eyes. A hammer will break your phone no matter what, but a good case is the best protection of all.My SE did have micro scratches. You could see them only with the screen off and in the right light.

If those would bother you, get a screen film. Id always suggest the less expensive soft plastic versions, because they dont crack and protect from scratches just as well as glass. Admittedly, it doesnt look as nice.Yet after the drop onto the scale and the removal of the screen protector, I could see no scratches.

Puzzled, I took out my keys and very cautiously tried to scratch my phone. Nothing. I pushed harder. Still nothing.I could not scratch the screen with my keys, and where the heck was the scratch from that early morning skidding adventure?One possible explanation is that it was never there. The floor didnt scuff the phone, the phone scuffed the floor, and that looked like a scratch to me.

When I cleaned it to apply the screen protector, I probably washed that away and didnt notice it because I was concentrating on getting the screen protector on correctly.The only other explanation would be self-healing glass. If Apple had that, theyd be shouting it from rooftops!But It Protected the Phone!Wed get people every day at the Apple store who needed to replace broken screen protectors.

They were quite proud that the protector had broken because it saved my phone!Id always demur. That protector is fragile glass. The idea that it can crack and distribute impact force to save the phone might be accurate under particular circumstances, but I knew that I had dropped my unprotected SE many times, and it did not break. Phone glass is tough. If you drop it hard enough, you can break it with or without a screen protector.

The customers would sometimes protest.

Sure.

If the screen protector breaks, some makers will give you a free replacement. Thats what the guarantee usually is; they are not going to pay for your phone repair if you manage to break both the phone and the protector. Zag is an exception: they will pay up to $100 to fix a screen if protected by their most expensive screen protector.

As that protector is a $79 expense for a piece of glass that probably costs a few cents, I think they can afford that, but it wont help you much.Do you know what it would cost to fix a broken iPhone 11 screen? With insurance from Apple or anyone else, thats usually about $30. Without insurance, its $200 for the front glass and $400 for the back.

Oh, and dont waste your money on a cheap repair at a Mall kiosk. Most of those people end up at an Apple or Best Buy store a week later because the screen doesnt work right after the cheap repair.Reality Check: What Does, and Doesn't, Protect Your SmartphoneTech Fix So here's a reality check on what does and doesn't protect your phone.

To reach our conclusions, we interviewedwww.nytimes.comMy advice is to skip the screen protector and buy the insurance. I pay $7.99 a month for AppleCare on my iPhone 11.

Because I pay it through my iTunes account and have filled that with Apple gift cards bought at a discount, I actually spend less, and I can keep that insurance in effect until Apple doesnt have the parts to fix it. Im sure Ill be upgrading to a new phone before that happens.But if it makes you feel better to have a screen protector, do that.

I didnt replace mine, and I have no plans to do so

How do you repair cell phone screens?

How you repair cell phone screens very much varies based on the type of phone you are trying to repair and so I really cant answer for all types of phones.

What I can do is show you where to find out for each device: The Free Repair Manual

There you will find step by step guides for many devices, lists of parts and tools required, difficulty involved, and other peoples feedback on the repair method.

What I can give you here, are some tips when repairing phone screens:

Avoid replacing the LCD if you can avoid it - You cant always avoid it, but some models of phone have a separate LCD and digitizer (i.e. front glass). Replacing just the digitizer is far cheaper than replacing both, but if you need to replace both

Buy the LCD and digitizer factory fused - UV curing LOCA (Liquid, Optically-Clear Adhesive) is very difficult to get perfect. Save yourself the time and hassle by getting it already done from the factory.

Use duct tape to prevent the old screen shattering when removing it

Expect to pay a LOT more for Android screens

If you have any uncertainty, DONT. DO. It. - Im really serious here. I only do repairs on devices that I have actually bought myself and practiced the repair on.

Look for the best rated sellers, not always the cheapest - I have had no bad experiences with iPhone screens imported from AliExpress, but nevertheless I always look for sellers with 1) lots of sales of the item and 2) good feedback on the item. Android screens sometimes come with defects - discoloration, burned images, buttons that dont respond well etc.

If you have any further queries, or would like assistance with a specific device, feel free to contact me and Ill do my best to help you.

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Now they not only have fingerprint identification, but also can identify 5 at a time...As for why the multi-point fingerprint solution in the TFP screen can realize these functions, high integration has played a great role.In short, it is to integrate touch, display and fingerprint identification, replace the previous design of fingerprint identification module and reduce the thickness of the screen, so that the screen fingerprint identification is feasible on the LCD.At the same time, in order to realize fingerprint identification on the whole screen, Tianma covers the whole screen with optical path and sensors.As for how multi-point fingerprint identification can play new tricks, it still depends on the subsequent operations of manufacturers.As for the fate of LCD screen after mass production of this scheme, we still don't know, but before that, LCD screen has never been the first choice for mobile phone manufacturers.After all, the OLED screen is thinner, can emit light by itself, and the color is more bright. 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What Is the Forming Process of the Flexible Touch Screen
What Is the Forming Process of the Flexible Touch Screen
Every day, new products, new experiences, professional membrane switch proofing factory, 12 hour expedited shipmentFrom the hot sale of Samsung Galaxy edge flagship series to the advent of various curved screen bracelets and TVs, it is no doubt that curved screen technology has been widely valued and sought after by consumers and the industry in recent years. In the future, with the continuous development and improvement of fixed curvature curved screen technology, the flexible touch screen that can realize arbitrary bending will become an important development direction. On the 25th, at the 13th International touch screen and display technology development forum, Huang Hanfeng, deputy general manager of touch R & D from Shenzhen oufeiguang technology, made a detailed introduction to the flexible touch screen from the perspective of the industrial chain around the four key elements of flexible display, flexible touch, flexible cover plate and flexible bonding.Flexible displayFor LCD display, the LCD is usually responsible for controlling the display gray, and the three primary color filters control the display color, which requires them to correspond one by one in order to display normally. If the LCD panel is used as a curved screen, the inner circumference and outer circumference will be unequal, and the original one-to-one corresponding liquid crystal and filter will have position deviation, resulting in color distortion. In addition, it will also cause a series of problems such as light leakage, dark screen ghosting and snowflakes. Therefore, for the curved screen, the OLED display technology represented by AMOLED has almost become the best choice.Huang Hanfeng said that at present, Samsung is the undisputed AMOLED overlord in terms of patents, production capacity, yield and technology accumulation. The sixth generation AMOLED panel that began mass production at the end of 2014 can now produce 50000 pieces per month, and the yield can reach 60%. The second is LG, but LG has been focusing on large screen curved TV. At present, with the increasingly obvious trend of small screen AMOLED, LG is also accelerating the layout of small and medium-sized flexible screens. Although its output is not as good as Samsung, its yield can also reach more than 60%. The latest release of Xiaomi note 2 is the flexible AMOLED screen of LG. In addition, Japan's JDI and sharp (already acquired by Hon Hai), Taiwan's Youda, domestic BOE, Rouyu and other screen manufacturers are also accelerating the layout of their own AMOLED technology. It is the general trend for AMOLED to replace LCD.Flexible touchIn terms of touch control, ITO (indium tin oxide) transparent conductive film has become the most important touch layer material for display screens such as non curved LCD and OLED due to its good light transmittance, low thickness, excellent hardness and conductivity, mature manufacturing technology and many other reasons. However, as ITO itself is a brittle material, it is not suitable for making flexible touch layer with large curvature or even free bending, and the cost and cost are high. At present, it accounts for about 30% - 40% of the cost of the upstream material part of the whole touch screen industry, and uses "indium", a rare metal with limited reserves. Therefore, with the advent of the era of curved surface and flexibility, it is likely to be replaced.Huang Hanfeng said that at present, the main substitutes for ITO materials are graphene, carbon nanotubes, nano silver and metal mesh. Graphene and carbon nanotubes are very good substitutes for ITO from the characteristics of the material itself. However, graphene is still in the R & D stage and is still far from mass production. The industrial mass production technology of carbon nanotubes is not perfect, and the conductivity of the thin film products made of carbon nanotubes is not as good as that of ITO. Therefore, from the perspective of technology and marketization, metal grid and nano silver technology will be the protagonists of development in recent years. Metal grid technology has been applied in some PC display markets.The metal mesh technology mentioned here is a conductive metal mesh formed by pressing metal conductive materials such as silver and copper or oxides on thin film substrates such as pet. Its main advantages are low raw material cost and good folding ability. However, due to the problem of Murray interference ripple caused by yield, output and high-speed pixels, it is more suitable for desktop all-in-one computers, laptops, televisions and other products with low resolution and relatively long-distance use.Nano silver technology means that nano silver ink material is coated on pet or glass substrate, and then laser lithography is used to depict the conductive network of nano silver wire. Its main advantages are high yield, small linewidth, good conductivity and folding resistance, while its disadvantage is high cost. Moreover, compared with metal mesh, nano silver material has smaller radius of curvature and small resistance change rate during bending. In addition, due to the linewidth, it is more suitable for high-resolution close-up scenes such as mobile phones, smart watches and bracelets."By comprehensive comparison, I think nano silver has more advantages than metal grid," Huang Hanfeng said.Flexible cover plateIn order to bend at will, in addition to solving the flexible display and flexible touch, the last and most critical part is the flexible cover plate and fitting. However, due to its hard and fragile characteristics, glass cover plate is not the best choice in the field of flexibility.Huang Hanfeng said that compared with glass, pet and PI (polyimide) materials with high surface hardness and high light transmittance are better choices, but at present, pet and PI also have many problems to be solved. On the one hand, they are not resistant to high temperature and have poor light transmittance: pet and PI will have problems of partial melting and property change at low ambient temperature, and they do not have good light transmittance compared with glass.Secondly, it is difficult to achieve a balance between hardness and folding. Huang Hanfeng said that if you want to meet certain hardness requirements, you need to apply the hardened layer, but after coating the hardened layer, after repeated folding, the hardened layer will crack and reduce the hardness. Therefore, how to achieve a balance between the two is the biggest bottleneck at present.Compared with the flexible cover plate that needs further development, the 3D glass cover plate necessary for curved screen mobile phones has a very good development prospect.Some data show that 2018 may become the outbreak year of 3D glass cover plate. It is expected that the mobile phone penetration rate of 3D glass cover plate will exceed 50% around 2020. With the maturity of 3D glass cover plate processing technology and the decline of unit price, the penetration rate will further improve. It is expected that the market scale will reach more than 19 billion yuan in the future.Huang Hanfeng said that the common manufacturing processes of 1R (single radian bending) and 2R cover plates have been basically mature. They basically achieve a bending effect through hot bending technology. The difference is mainly in the coating of hardened layer. However, the yield is a problem to be solved, which is basically only 30%, and there is no room for improvement in the short term. If 4R is to be done in the future, the yield will be lower. Therefore, the yield is one of the urgent problems to be solved in the manufacture of cover plate.Flexible fitAfter the cover plate is selected, it is fitted, that is, the cover plate is integrated with the touch and display layer below to form a complete module. At present, there are two common methods: roller type and vacuum bonding: the roller has high efficiency and needs to roll the pasted object. The efficiency of vacuum type is relatively low, but it does not need to roll the pasted object, so it is not easy to cause damage to the pasted object.Huang Hanfeng said that if the curvature is large, you can only choose vacuum bonding. However, for the possible 4R bonding in the future, due to its special four side bending characteristics, it is difficult to avoid wrinkles and bubbles in places with large radians even if vacuum is adopted. At present, the industry has adopted customized extrusion airbags or plastic parts to alleviate this problem, but it has not been completely solved. Therefore, the industry still has room for progress in multi surface and high curvature fitting technology.Huang Hanfeng frankly said: "from the perspective of the supply chain, it will take several years for the flexible screen to really realize mass production. At the same time, it also needs the upstream and downstream supply chain to jointly overcome the relevant technical problems."For future development, Huang Hanfeng believes that the integration of various modules will be the general trend. He said: "in the incell technology of LCD, ITO touch film and liquid crystal layer are integrated together, which is a good integration. Now the fingerprint module is independent, and it can also be integrated with touch in the future. I think there will be a process of mutual integration and progress between functional modules in the future."
LG Will Mass Produce Mobile Phone Flexible Screen in the Fourth Quarter of This Year
LG Will Mass Produce Mobile Phone Flexible Screen in the Fourth Quarter of This Year
In the early morning of June 20, Beijing time, according to the English version of Korea Times, in order to further consolidate the leading position in the display market, LG display will mass produce a new version of smart phone flexible display from the fourth quarter of this year and provide it to major customers.LG researchers and technicians said that the purpose of producing flexible display is to meet the growing demand for innovative solutions. LG spokesman Frank Lee said that the company is trying to meet the rapidly growing market demand for advanced display screens. Li stressed that the new display screen is foldable and not fragile, and the product will become a major innovation in display technology.LG said it was investing in flexible displays and high-tech panels for mobile devices, namely OLED panels that support high-definition (UHD) displays. "We have completed the development of the first flexible display and will start mass production from the fourth quarter of this year," LG said in a statementThe E2 production line of the company's display manufacturing plant in pozhou, South Korea, will be responsible for the production of flexible displays. LG said that the OLED flexible display will adopt generation 4.5 glass cutting technology, and the monthly production capacity of the production line will be 12000 pieces.Koo Bon moo, chairman of LG, hopes to revive the enterprise by launching leading products. Therefore, as a major shareholder of LG display, LG Electronics will launch its first flexible display smartphone later this year.LG predicts that flexible display may become the latest trend of mobile devices, so the company may also consider selling flexible display to major mobile device manufacturers.It is reported that LG's competitor Samsung display is also developing similar products. At present, Samsung display is testing flexible display products to improve product quality. Due to manufacturing problems, the upcoming Galaxy note 3 should not be configured with a flexible display in the short term.Kim Yang Jae, an analyst at Woori investment securities in Korea, said: "mobile phone manufacturers are increasingly pursuing bright images, beautiful shapes and thin display screens, while flexible display screens cater to this demand. LG display is expected to help them seize a greater market share." Kim said, LG's strategy of switching to flexible display can break the industry conventions and make the company earn stable profits.In fact, flexible display is only one step for LG to invest in different businesses and seize the global market share of OLED. LG is the first company to mass produce OLED display and foldable OLED screen. At the same time, the company is also developing OLED TV supporting high-definition display.Lim Joo soo, manager of LG OLED Technology Strategy Department, said that in order to remain competitive, LG is trying to reduce costs, reduce power consumption and improve image quality. Lim Joo soo said: "LG display is developing high-definition OLED TV screen. In order to improve the brightness, we plan to replace the existing 'bottom light' technology with 'top light' technology. In addition, the company will develop new materials to extend the service life of OLED display."In the next few years, OLED TV will become the mainstream product, and LG plans to expand the TV screen size to 65 inches and 77 inches. LG said that the above two OLED displays will be produced by the M1 test production line of pozhou factory.
LG Will Mass Produce Mobile Phone Flexible Screen in the Fourth Quarter of This Year
LG Will Mass Produce Mobile Phone Flexible Screen in the Fourth Quarter of This Year
In the early morning of June 20, Beijing time, according to the English version of Korea Times, in order to further consolidate the leading position in the display market, LG display will mass produce a new version of smart phone flexible display from the fourth quarter of this year and provide it to major customers.LG researchers and technicians said that the purpose of producing flexible display is to meet the growing demand for innovative solutions. LG spokesman Frank Lee said that the company is trying to meet the rapidly growing market demand for advanced display screens. Li stressed that the new display screen is foldable and not fragile, and the product will become a major innovation in display technology.LG said it was investing in flexible displays and high-tech panels for mobile devices, namely OLED panels that support high-definition (UHD) displays. "We have completed the development of the first flexible display and will start mass production from the fourth quarter of this year," LG said in a statementThe E2 production line of the company's display manufacturing plant in pozhou, South Korea, will be responsible for the production of flexible displays. LG said that the OLED flexible display will adopt generation 4.5 glass cutting technology, and the monthly production capacity of the production line will be 12000 pieces.Koo Bon moo, chairman of LG, hopes to revive the enterprise by launching leading products. Therefore, as a major shareholder of LG display, LG Electronics will launch its first flexible display smartphone later this year.LG predicts that flexible display may become the latest trend of mobile devices, so the company may also consider selling flexible display to major mobile device manufacturers.It is reported that LG's competitor Samsung display is also developing similar products. At present, Samsung display is testing flexible display products to improve product quality. Due to manufacturing problems, the upcoming Galaxy note 3 should not be configured with a flexible display in the short term.Kim Yang Jae, an analyst at Woori investment securities in Korea, said: "mobile phone manufacturers are increasingly pursuing bright images, beautiful shapes and thin display screens, while flexible display screens cater to this demand. LG display is expected to help them seize a greater market share." Kim said, LG's strategy of switching to flexible display can break the industry conventions and make the company earn stable profits.In fact, flexible display is only one step for LG to invest in different businesses and seize the global market share of OLED. LG is the first company to mass produce OLED display and foldable OLED screen. At the same time, the company is also developing OLED TV supporting high-definition display.Lim Joo soo, manager of LG OLED Technology Strategy Department, said that in order to remain competitive, LG is trying to reduce costs, reduce power consumption and improve image quality. Lim Joo soo said: "LG display is developing high-definition OLED TV screen. In order to improve the brightness, we plan to replace the existing 'bottom light' technology with 'top light' technology. In addition, the company will develop new materials to extend the service life of OLED display."In the next few years, OLED TV will become the mainstream product, and LG plans to expand the TV screen size to 65 inches and 77 inches. LG said that the above two OLED displays will be produced by the M1 test production line of pozhou factory.
Design Scheme for Replacing Ch7511b DP to LVDS Screen
Design Scheme for Replacing Ch7511b DP to LVDS Screen
Ch7511b is a DP to LVDS screen conversion chip, and ch7511b is an EDP to LVDS conversion chip. Ch7511b converts the embedded DisplayPort signal to LVDS (low voltage differential signal). Through the advanced decoding / encoding algorithm of ch7511b, the input EDP high-speed serial video data can be seamlessly converted to LVDS. LVDS is a popular high-speed serial link display technology for medium / large LCD displays. This chip is specially designed for the multi-functional integrated PC, industrial computer and notebook computer market.Cs5211 is also an EDP to LVDS bridge chip. Cs5211 has flexible configuration and is suitable for various low-cost display systems. Cs5211 is compatible with EDP 1.2 and supports 1-channel and 2-channel modes. The speed of each channel is 1.62gbps and 2.7Gbps. Cs5211 adopts powerful SerDes technology, which can recover high-speed serial data with low bit error rate.Compared with ch7511b, the advantages of cs5211 in designing DP to LVDS conversion circuit are as follows:1. Cs5211 LVDS transmitter supports single port and dual port modes.2. The maximum resolution supported by cs5211 is WUXGA (1920x1200).3. Cs5211 has 4 configuration pins and can support 16 different combinations of panel resolution and LVDS working mode of an EEPROM image.4. Cs5211 provides a simple tool to edit, generate and update EEPROM images for custom configuration.5. Cs5211 has simple circuit design and fewer peripheral circuit components, which is more conducive to saving BOM cost.6. Cs5211 integrates clock source to save external crystal.7. Cs5211 supports a wide range of power supply (core power is 1.8 1.2V), saving on-board power supply equipment.8. The total power of cs5211 is less than 300MW, which simplifies the design of power supply network and is easy to integrate into the current popular low-cost display system.9. Cs5211 is qfn68 package and ch7511b is also qfn68 package. Overview: cs5211 directly replaces ch7511 without changing the circuit board and pin to pin replacement mode.10. Cs5211 on-chip MCU can update the program online to adjust various parameter values of the screen, improve the universality of the design and product compatibility, and increase the applicable scenario and development and design cost of the scheme product.The detailed characteristic parameters of cs5211 are as follows:Overview:1. 2-channel DisplayPort v1.1 compatible receiverSupports 18 bit single port, 18 Bit dual port, 24 bit single port and 24 bit dual port LVDS outputsSupports open LDI and spwg bit mapping for LVDS applicationsBuilt in oscillator without external crystalEmbedded linear voltage drop regulator (LDO)On Chip MCUSelect the support panel through the GPIO pin controlBoot ROM is loaded automatically after power onUpdate serial boot ROM data via I2C bus or auxiliary channelAutomatic chip power mode control.EMI reduction of EDP and LVDWide core power range from 1.8V to 1.2V.Qfn68 package.HBM 4KV2. DP receiver characteristics:Compliant with embedded display port (EDP) specification 1.2Support 1 or 2 main link channels at 1.62gbps or 2.7Gbps link rate.Enter the color depth of 18 / 24 bits per pixel in RGB format.Support enhanced frame mode.Support VESA and CEA timing standards, resolution up to 1920x1200, 60Hz, 24 bit per pixel mode.Supports dynamic refresh rate switching.Support quick link training and full link training.Support EDP authentication: optional scrambling seed reset and optional frame.Support HPD interrupt.3. LVDS output characteristics:Support 18 bit single port, 18 Bit dual port, 24 bit single port and 24 bit dual port LVDS output interfaces.Supports openldi and spwg bit mapping for LVDS applications.Keep LVDS output when the input video is not ready.Flexible LVDS output pin switching.Programmable swing / common mode voltage.Output conversion rate control to reduce electromagnetic interference.4. Output panel and backlight controlProgrammable LCD panel power sequenceTwo PWM modes are supported, including backlight brightness level control PWM pin and BLUP / bldn pinEditing: JQ
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