lcd screen vs digitizer manufacturer
Your iPod, iPhone and tabletare commonly known to have three key components: a glass panel, digitizer (aka touch screen) and LCD. What are the differences? Let’s clearly define these layers:
Digitizer –The digitizer is located just under the glass screen. It is the electrical force that senses and responds to touch. When you tap your fingertip or swipe it across the screen, the mere touch acts as data input to the device’s center. If your device fails to respond to touch, it’s time for a new digitizer. The digitizer is an electrical mechanism that is fused with the glass screen; so if you need to replace the digitizer, you’ll have to replace the glass, too, and vice versa. UEGoffers a Front Glass (Digitizer Touch Screen) Repair Service on tablets.
Touch Screen – The term touch screen is interchangeable with the term digitizer. You’ll often see the combined terms Digitizer Touch Screen offered as a repair service.
LCD – LCD is an acronym for liquid crystal display. The LCD is the visual component underneath the glass that displays the image on the screen. UEGoffers LCD repairs on tablets, iPhonesand iPods.
LCD (liquid crystal display) is the technology used for displays in notebook and other automated industry computers. It is also used in screens for mobile devices, such as laptops, tablets, and smartphones.
Like light-emitting diode (LED) and gas-plasma technologies, LCDs allow displays to be much thinner than cathode ray tube (CRT) technology. LCDs consume much less power than LED and gas-display displays because they work on the principle of blocking light rather than emitting it.
Each LCD touch screen monitor contains a matrix of pixels that display the image on the screen. Early LCDs screen had passive-matrix screens, which controlled individual pixels by sending a charge to their row and column. Since a limited number of electrical charges could be sent each second, passive-matrix screens were known for appearing blurry when images moved quickly on the screen.
Modern LCDs display typically use active-matrix technology, which contains thin film transistors, or TFTs touch screen. These transistors include capacitors that enable individual pixels to "actively" retain their charge. Therefore, the active-matrix LCDs touch panel are more efficient and appear more responsive than passive-matrix displays.
The backlight in liquid crystal display provides an even light source behind the LCD screen. This light is polarized, meaning only half of the light shines through to the liquid crystal layer.
The touchscreen panel a display device that senses physical touch by a person’s hands or fingers, or by a device such as a stylus, and then performs actions based on the location of the touch as well as the number of touches.
Touch screen glass can be quite useful as an alternative to a mouse or keyboard for navigating a graphical user interface. Touch screens are used on a variety of devices such as computer and laptop displays, smartphones, tablets, cash registers, and information kiosks.
A touch-screen digitizer is one piece in a multilayered "sandwich." In modern devices, the screen that produces the images is found at the bottom layer; the digitizer is a transparent sheet that occupies a middle layer on top of the screen, and a thin sheet of hard, protective glass forms the top layer.
Touching the screen triggers touch sensors immediately under your fingertip; a specialized electronic circuit receives signals from these sensors and converts them into a specific location on the screen as X and Y coordinates. The circuit sends the location to software that interprets the touch and location according to the app you"re using.
For example, when you dial a phone number, your fingers touch the numbers on a virtual keypad on the phone"s screen. The software compares the locations touched against the keypad and generates a phone number one digit at a time.
Touch Screen Glass– The bottom layer is the ITO glass, typically thickness is between 1 and 3 millimetre. If you drop your device, the cracked glass ends up resembling an elaborate spiderweb.
Digitizer – The digitizer is located above the glass screen. It is the electrical force that senses and responds to touch. When you tap your fingertip or swipe it across the screen, the mere touch acts as data input to the device’s center. If your device fails to respond to touch, it’s time for a new digitizer.
The touch screen digitizer is an electrical mechanism that is fused with the glass screen; so if you need to replace the digitizer, you’ll have to replace the glass, too, and vice versa.
Touch Screen Panel- Touchscreen is the thin transparent layer of plastic, which reads the signal from the touch and transports it to the processing unit. It is the part that you can touch without disassembling the device.
LCD – LCD display is an acronym for liquid crystal display. The LCD is the visual component underneath the glass that displays the image on the screen. You can not get to the LCD without taking the device apart first.
A touch screen display is usually made with three main parts. The protective glass sheet, the digitizer sheet, and the LCD. The digitizer is a thin transparent sheet that is adhered to the protective glass sheet with a transparent conductive adhesive. The digitizer is the only part of the display assembly that is responsible for sensing touch. Since the human touch is conductive it allows the screen to sense the location you touch. The LCD is only responsible for displaying the image on the screen. If the screen is not responding to touch then usually the digitizer is damaged or faulty. Usually a damaged or cracked LCD will display a distorted image or no image at all. So if the phone displays a good image but does not respond to touch then you may have the option of only replacing the digitizer. It"s not as easy of a repair as replacing the whole display but is cheaper. A new digitizer part already has the digitizer sheet adhered to a protective sheet of glass. If a person can remove the faulty digitizer from the phone without damaging the LCD then it is surely more cost effective repair. Some displays have the digitizer fused to the LCD which makes it hard not to damage the LCD if trying to remove the digitizer. If that is the case with your phone"s display it is a lot easier to just replace the whole display. Hope this information is helpful.
The easiest repair for mobile phones to complete is the LCD assembly replacement. This repair takes less than an hour and requires the least amount of technical ability. For some devices the LCD assembly can be replaced simply by removing a few screws and cables. Also, as the assembly includes the glass, touch screen and the LCD, you can be confident it will fix all common screen issues.
For iPad and other tablets, if the screen parts aren"t fused, then you can do a glass touch digitizer only replacement. Otherwise, the full assembly is the easiest repair. Either way, it usually takes 1-2 hours.
While it can be significantly cheaper repair, If the screen parts are fused, the screens must be heated to loosen the adhesive between the screen and LCD and you need special equipment. This includes all iPhone and most other mobile phones and some iPads or tablets. A heat gun or hair dryer can be used for this. The screen is then gently and very slowly pried apart from LCD. DIYers need to use care to insure the LCD is not damaged in the process.
Tip: Transferring the home button on an iPhone or an iPad can be the most tricky part. It takes a little patience and heat. You can purchase screens that have the home button pre-installed (along with other small parts) and this is the easiest of all repair. This can take 15-30 minutes. However, Touch ID function only works with the original home button so you have to transfer if you want to retain it. Note: some of the iPads don"t have a screen replacement option that includes the home button like the iPad Pro and newer iPad Mini. iPad 1st Gen to 9th Gen screens, have a home button pre-installed option.
When you drop your device, you may immediately pick it up and try to turn it on to see what happened. Sometimes, the screen will be completely cracked, but there’s still a display. Other times, the screen is cracked and there is no display. A few different things happen when an iPad or iPhone drops. Understanding what happens to the screen can help you know what type of repair you need.
When you drop your iPad or iPhone and the screen doesn’t come on (there is no display) or the display is distorted, it’s likely the LCD screen is broken. This screen has everything to do with seeing what you love about your device. Videos, games, email, and everything else depends on your LCD screen.
Sometimes, you may be able to see the screen, but when you touch it to do something, it won’t react to your touch. This is usually because the digitizer is damaged. Many times, this happens even when you can’t see a crack on your device. This is why many people don’t think they need a screen replacement, and actually, in some cases they still don’t need it. Other components may be damaged that cause the touch not to work, but when those are all working okay, it’s the screen.
There are some cases in which both the LCD and digitizer need to be replaced. If there’s no display or a distorted one AND there’s no touch response, the LCD and digitizer need to be replaced. This is usually what people need when they turn to us with a shattered iPad or iPhone.
If you still don’t know if you should have a LCD or digitizer repair, contact our certified technicians. They can look at your device for free to provide you a repair quote. You can trust our technicians to give you the truth, so you can save money when you may not need both screens replaced. If you do, you can be sure that you’ll receive a quality repair with quality parts.
Touchscreen devices consist of numerous different components that must work cohesively together in order to make it functional. The touch sensor, controller, and the software all play important roles. But there’s one component that’s often overlooked in the equation and that’s the touchscreen digitizer. This is the component that allows users to directly interact with what’s on the screen and issue commands.
As you know, touchscreen devices consist of multiple layers each of which serve a different purpose and carry out various functions. The purpose of the touchscreen digitizer glass layer is essentially to translate or convert physical touch commands into digital signals that the device can understand and then carry out.
Commercial and industrial displays such as capacitive and resistive screens all feature touchscreen digitizers that are placed on top of and connected to the LCD layer using a flex cable. While the LCD layer is responsible for displaying sharp and crystal-clear images on the screen, the LCD touchscreen digitizer reads, understands, and translates the commands given so that the device can perform the appropriate functions.
Touchscreen digitizers are fairly common components of modern LCD displays, but not all of them are equipped with one. The sole purpose of an LCD display touchscreen digitizer is to convert touch commands on the top layer into digital data that the device can understand and perform. Once the touch commands are converted into digital data, the device can then perform the required function and change the images displayed on the screen accordingly.
Touchscreen digitizers are made of a single glass layer, which means they can be susceptible to damage if the device is dropped or comes into contact with a brute force. Although the device can still marginally function depending on the extent of the damage to the touchscreen digitizer glass, its functionality and ability to comprehend touch commands may be limited. If the glass is completely shattered, then the device won’t be able to interpret touch commands at all.
The LCD and touchscreen digitizer layers of a device display serve completely different functions, but they work in tandem to maximize user experience and device performance. Since both of these components are made of thin glass layers, they’re not impervious to damages such as cracks or scratches as a result of being dropped or coming into contact with external physical stressors.
If it’s only the touchscreen digitizer that’s broken, you’ll still be able to make out what’s being displayed on the screen by the LCD component for the most part. The only difference is that parts of the screen or the entire screen might be unresponsive to your touch commands as a result of the damages. Moreover, blobs or splotchy images may appear in certain parts of the screen.
This indicates that there’s a disconnection between the touchscreen digitizer and the LCD display, which is preventing the device from performing the desired functions issued by touch commands.
The LCD screen is responsible for the visual component of your device. Pixelation in the form of multicoloured splotches or dots throughout the screen indicates that the LCD component has sustained a certain level of damage. It can be caused by wear and tear over time or if your device sustains physical damage.
A black screen indicates that the LCD layer of the device is damaged. The device itself will most likely still turn on and function like normal, but you won’t be able to see what it’s doing on the screen itself. Typically, this just means that the LCD layer needs to be repaired or replaced. Depending on the extent of the damage, it might be more practical and cost-effective to simply purchase a new device altogether unless you’re still within the warranty period.
• Perform highly diversified duties to install and maintain electrical apparatus on production machines and any other facility equipment (Screen Print, Punch Press, Steel Rule Die, Automated Machines, Turret, Laser Cutting Machines, etc.).
However, if the digitizer or LCD is also damaged during a fall, that screen no longer carries value because it cannot be refurbished. Repair shops cannot sell broken LCDs to refurbishing companies; therefore, they cannot offset the cost of an LCD repair. That is why repair stores often charge a little extra if there is damage to the LCD or digitizer, to make up for that loss. Repair stores that don’t have an additional charge for an LCD repair typically inflate their glass repair price to make up for the loss from damaged LCDs. If they have one price, that means everyone is paying more to cover the cost of customers who have damaged LCDs and customers who only have cracked glass. This is why TCR separates the price of glass and LCD repairs for you! If you only have cracked glass, you only have to worry about paying to replace the cracked glass.
If your phone or tablet’s glass is shattered there will be cracks or chips on the screen itself. If it is just the glass that is damaged, the device may still function and you may be able to use it normally. If this is the case, it is likely that only the glass needs to be replaced. To prevent further damage to your device it is best to get it repaired quickly. For example, if liquids seep through the cracks it could cause permanent damage to the LCD.
Many people may continue to use their touchscreen with shattered glass and delay fixing the glass on their devices; however, if the touchscreen isn’t responsive, it could be a sign of more significant damage to the device’s digitizer which is integrated with the LCD screen.
A pixelated screen can indicate LCD damage. This would look like a patch of multicolored dots, a line or lines of discoloration, or a screen with rainbow colors. For many people, these colors are an easy way to know that their LCD is broken and that they should get it repaired.
Dropping your phone isn’t the only reason you’ll end up with a pixelated screen. Over time, your screen’s LCD may break down through regular use. This happens to other devices aside from your smartphone or tablet. Pixelation can happen to TVs and computers, too. People typically decide to buy a new device when this happens. Fortunately, with an LCD repair, you can fix the device without needing to replace it.
A black screen or black spots on your smartphone or tablet is an indication of a damaged LCD. Often with a bad LCD, a phone may still turn on and make noises, but there is no clear picture. This does not necessarily mean any other part of the phone is damaged and a simple screen replacement will get it functioning again. Sometimes it can mean a battery or other internal component is damaged. It is best to have a highly qualified phone repair technician diagnose what is wrong so the appropriate repair can be made.
Fortunately, your mobile device is fixable whether you cracked the glass or damaged the LCD. Stop by or call TCR: Triangle Cellular Repair at (919) 263-2699 for a free diagnostic and quick, affordable cell phone repair in Chapel Hill and surrounding areas. We’re always happy to help!
There are many features that drive LCD and touchscreen selection for a device in any industry, but these decisions become more restricted in the medical device space.
The next touchscreen selection decision is type of screen: resistive or capacitive. Capacitive screens are more familiar to users from consumer technology and can accommodate multi-touch user interface features such as zooming and rotating (although these types of gestures are rarely incorporated into medical device GUIs) but can have issues with different glove types. Capacitive screens also can accommodate a thick layer of cover glass to protect the screen without a decrease in screen responsiveness. Although capacitive screens used to be restricted for use in the medical field due to glove incompatibility, most capacitive screens are now tunable to different glove types. Manufacturers can tweak aspects of the touchscreen design to make capacitive screens work better for a specific use environment, whether that be a physician’s office, an operating room, or at the patient’s bedside.
Conversely, resistive touch screens don’t have a need for this fine-tuning; because resistive screens rely on pressure, it doesn’t matter with what the screen is pressed (finger, gloved finger, pen/stylus, etc.). However, resistive screens require a much higher contact pressure and are limited in their multi-touch functionality. This is a downside for resistive screens due to users’ expectations of high quality, responsive touch screens from their personal smartphones, tablets, and laptops. There also exists a trade-off with resistive touch screens between glass thickness and responsiveness. The thicker the glass layer that is placed over the LCD display, the harder the user must push on the screen to get the glass to deflect enough for the system to register a touch. However, if the glass is too thin, the touchscreen will be prone to breaking at a lower pressure.
Finally, touchscreen-LCD integration is an important consideration for a medical product display. Because the touchscreen needs to fit within the active area of the display, data sheets and specifications of touch screens can be hard to find or inaccurate, and it is rare that a touchscreen exists from the manufacturer intended to go with a given display, selection of the touchscreen once the display is selected presents challenges. Additionally, besides mere selection of a set of a display and a touchscreen that are compatible, there is the physical interfacing between the display and the touchscreen. The two main methods for touchscreen-LCD attachment are optical bonding and tape bonding. Optical bonding fills the gap between the display and the touchscreen with a shock absorbent polymer glue and offers the display better reliability and better viewing properties but comes with a higher price tag. Tape bonding of the touchscreen to the display leaves a gap of air between the two components, worsening the viewing properties of the screen but providing a cost advantage over optical bonding.
Medical devices are produced in lower volumes than devices with displays in the automotive, manufacturing, or aviation industries. This limits the number of LCD suppliers that specifically cater to medical devices and leads to increased lead times. Because displays are not designed explicitly for the issues that medical devices face, considerations as to if displays are appropriate to use in the design of a medical instrument are crucial.
As discussed above, screens must be compatible with their use environment which for medical use, this usually means that gloved hands must be able to successfully use the touchscreen. Also, medical devices and IVD systems are subject to more rigorous cleaning procedures than devices in other industries. Screens must be cleanable by an array of solvents, including 70% isopropyl alcohol, mild bleach dilutions, Cidex®, and CaviCide™. Most anti-reflective coatings are not tolerant to these cleaning solutions and would need to be validated against their use if selected for a product.
Ensure required specifications for both the display and touchscreen are well understood and agreed upon. Sometimes, relatively arbitrary specific aspect ratios, sizes, or resolutions of screens are called out in the device requirements without consideration for the many other factors affecting display selection.
Start selection early. Long lead times and back-and-forth with screen manufacturers can bottleneck product design. Get ahead by starting LCD and touchscreen selection early in the design and development process.
Remember that ultimately, screen selection is about usability and customer perception of the instrument and therefore can make or break a medical device. Ensure tradeoffs of cost, availability, and performance of candidate displays are well characterized.
Apex Material Technology Corporation (AMT), Taiwan, since 1998, is a manufacturer of Touch Screen Display Solution. Main products, including open frame touch screen monitor, optical bonding service, solutions for touch screen display, projected capacitive touch screen and resistive touch screen. Touch screen products and solutions particularly for industrial, medical, outdoor, public commercial and transportation applications.
Certified (ISO, UL, REACH, and RoHS) resistive, projected capacitive (PCAP) touch screens and PenMount touch screen controllers meeting international standards. All touch screen products are supplied with flexible production quantity and long term support.
AMT has been offering customers high-quality resistive and projected capacitive (PCAP) touch screens, and PenMount touch screen controllers, both with advanced technology and 20 years of experience, AMT ensures each customer"s demands are met.
One of the most common misconceptions we see in the iPhone repair business is the true meaning and understanding of the definition of Non-Original LCD Screens and Original (OEM) LCD Screens.
Culture Differences – Most LCD screens are manufactured or reclaimed to be refurbished in the Asian market. Right out of the gate, there is a barrier of culture and language barriers that simply don’t align with other nations terms relating to cell phone replacement parts.
Marketing – Various marketing twists these terms just as much in an effort to advertise LCD screen parts in a manner that sounds more official and tends to keep the focus off some variant of the true condition.
For example: An “Original White LCD Display With Digitizer and Frame Assembly for iPhone 4S” listing title on eBay sounds like a 100% authentic LCD screen and must be “New” since the item condition reflects it being so.
– Other parts and components are reclaimed from broken LCD screens to make a refurbished LCD screen and could have other “aftermarket” parts used in re-manufacturing.
I scanned my inbox, Alibaba, eBay and Amazon for various sellers of iPhone LCD screens to get the most common terminology used in sellers’ offerings. I’ll list some of the most common terms used in product offerings below.
Terms like the above are mainly used to define one major component or part of the LCD screen rather than the word applying to all of the parts that make up an LCD assembly.
You get what you pay for. Most LCD suppliers are going to be in the same neighborhood in pricing. If you see a price that is significantly lower than another suppliers offering, you’re going to be giving up one of the following:
So if you went to buy the cheapest LCD screen from your supplier and asked “Are these new?,” they would most likely respond with “Yes.” In the example of Item #1, the LCD is new, but it’s a fake LCD that was made for the sole purpose of shaving cost. It will sacrifice something (if not a little bit of everything), including DPI and resolution, color brightness and quality of workmanship.
Asking very specific questions is half the battle when purchasing LCD screens from your supplier. The other half of the battle is getting an honest answer. Be very specific in the questions that you ask. I always try to use some common knowledge questions that don’t involve any of the terms used in conditions to eliminate any discrepancies in the answers you’ll receive. You should ask the following for questions specifically for all three major components of a typical LCD screen.
Digitizer – Is the Touch Panel manufactured by the same company that I would find on brand new in box phone that I purchased from an authorized Apple store?
The truth is: most buyers think they’re getting a new LCD screen when in fact 95% of the LCDs of replacement LCD screens for iPhone 4, 4s, 5, etc. are refurbished. The LCD screens that you purchase simply vary in the quality of the refurbishing process.
Toshiba and Sharpe are the only ones who made LCD screens for Apple iPhones and have not manufactured “new” ones for over a year. Those that they did manufacture were made for authorized service centers and over the counter replacements phones for post-paid carrier Asurion insurance customers only.
As of today’s date (Nov 11th), most LCD screen buyers are purchasing assemblies anywhere from $18-$26. A true new original would cost over $30 and actually be a bit hard to find. If you’re buying for under $30, you’re definitely buying a refurbished/reclaimed LCD screen.
When buying LCD screens and selling your broken LCD screens, many of the same terms are used, yet the industry treats these condition terms differently. Mainly, “Original” and “Non-Original” are used, yet the terminology of these conditions is different in regards to buying good screens and selling your bad ones.
Original– Never refurbished or reclaimed before. Example: if a retail customer bought a new iPhone 5 directly from Apple and it came to them brand new in the box, they cracked the screen, took it to your repair shop and you removed the screen to replace it; this LCD screen is original. Since the phone was opened and used as brand new in the box from official channels, the original (or FIRST) LCD screen that was on the phone has never been replaced.
Non-Original – The LCD screen has been refurbished or reclaimed from a broken LCD screen assembly at least one time. Non-Original does not mean fake. Illustrated below.
It can definitely start to get confusing when the same buying and selling words mean different things for the same product at a different stage in it’s lifecycle. When selling your smashed, cracked, damaged and broken iPhone and Android LCD screen assemblies, it’s usually best to translate “Original” and “Non-Original” to “Never Repaired or Refurbished” or “Has been Repaired or Refurbished” for easier understanding.
Supply your customers with the best wholesale custom touch digitizer from Alibaba.com, one of the world"s largest B2B marketplaces. Our options include touch screen monitors for pc, portable touch screen monitors and more so they can start tapping and pinching their screens right away.
When choosing the best touch screen monitor for their needs, customers will look at a variety of factors. Firstly, there are large touch screens available but the maximum that is comfortable for use with hands is a 32 inch touchscreen monitor. Any bigger than that and customers will not be able to reach the four corners. These custom touch digitizer are best used for visual artists to draw on and video editors.
You can also look at portable monitor touchscreens which run from the laptops battery and are small custom touch digitizer. They can also be used for projects involving single board computers. Additionally, we also have a lot of options for smart tv touch screens which are great to incorporate into home entertainment systems and allow users to surf the net, send messages on more right from their living room.
Look through Alibaba.com listings for touch screen panels and find the perfect one for your customers. Start ordering today from our suppliers and ask them for more information if needed.
If you’re designing a display application or deciding what type of TV to get, you’ll probably have to choose between an OLED or LCD as your display type.
LCDs utilize liquid crystals that produce an image when light is passed through the display. OLED displays generate images by applying electricity to organic materials inside the display.OLED and LCD Main Difference:
graphics and images visible. This is the reason you’re still able to see light coming through on images that are meant to be dark on an LCD monitor, display, or television.
OLEDs by comparison, deliver a drastically higher contrast by dynamically managing their individual pixels. When an image on an OLED display uses the color black, the pixel shuts off completely and renders a much higher contrast than that of LCDs.OLED vs LCD - Who is better at contrast?
Having a high brightness level is important if your display is going to be used in direct sunlight or somewhere with high ambient brightness. The display"s brightness level isn"t as important if it’s going to be used indoors or in a low light setting.OLED vs LCD - Who is better at Brightness?
Have you ever looked at a screen from an angle and noticed that the images became washed out or shadowy? The further away you get from the “front and center” view, the worse the image appears to be. This is an example of viewing angles in action – the wider the viewing angle, the better the images on screen will appear as you view them from different vantage points.
This means the display is much thinner than LCD displays and their pixels are much closer to the surface of the display, giving them an inherently wider viewing angle.
You’ll often notice images becoming distorted or losing their colors when tilting an LCD or when you view it from different angles. However, many LCDs now include technology to compensate for this – specifically In-Plane Switching (IPS).
LCDs with IPS are significantly brighter than standard LCDs and offer viewing angles that are on-par with OLEDs.OLED vs LCD - Who is better at Viewing Angles?
LCDs have been on the market much longer than OLEDs, so there is more data to support their longevity. On average LCDs have proven to perform for around 60,000 hours (2,500) days of operation.
With most LCDs you can expect about 7 years of consistent performance. Some dimming of the backlight has been observed but it is not significant to the quality of the display.
So depending on how your OLED is used, this can greatly affect its lifespan. An OLED being used to show static images for long periods of time will not have the same longevity as one displaying dynamic, constantly moving images.OLED vs LCD - Which one last longer?
There is not yet a clear winner when it comes to lifespans between LCD and OLED displays. Each have their advantages depending on their use-cases. It’s a tie!
If your car or truck factory radio LCD with touchscreen monitor needs replaced then we provide some of the best replacement car touch LCD screen replacement parts available on the market today. As is Factory Radio Parts standard: all of our car touchscreen repair kits are developed for both ease of use and functionality – so you can get your tunes blasting again in no time!
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