What Is Active-Matrix Liquid Crystal Display (AMLCD)?

Many people think they know what an Active Matrix Liquid Crystal Display (AMLCD) is, but their knowledge is a little more limited than they think. Most people have heard the term "active matrix" before, and it's a confusing term, but when you break it down, all you really need to know is that it is a type of flat-panel display that uses cathode ray tubes typically less than 4 inches thick. It is generally used on mobile devices and televisions. You may also hear the terms "thin film transistor" or "TFT" thrown around when talking about AMLCDs—this refers to the technology used in AMLCDs, which allows them to be so thin. They do this using transistor instead of diodes typically found in older technologies like passive matrix displays (PMDs). AMLCD is better than passive matrix because it has a faster response time, no double images, and a broader range of colors. However, they both have one thing in common: they're both AMLCD displays. Active-matrix displays are much better than passive ones, and it's not even funny. Active matrix displays use capacitors to control each pixel, which results in a faster response time and clearer picture. Passive matrix displays require altering an entire row of pixels to modify a single pixel, causing slow response times and trailers. If you've ever tried to watch a movie on a passive matrix display, you know what we're talking about. Those old-school TVs that your parents and grandparents probably still have. Active-Matrix Liquid Crystal Display (AMLCD) can't handle fast action scenes and tend to get bad "trailers" when it comes to moving images. It's like their brains can't quite keep up. But active-matrix displays are different. They use thin film transistors (TFTs) and capacitors to display fast-moving images clearly, so you don't have to worry about trailers or blurriness while watching your favorite action flicks.

By TechDogs Editorial Team

Related Terms by Consumer Electronics Technology

Cellular Automaton (CA)

Cellular automatons are not entirely cellular, quiet, and wholly atomic. They are the best of all worlds when you take the three fields mentioned above, study and play with them as any good scientist would. A cellular automaton (CA) is a system of many cells linked together using those cells' specific order and states. The goal is to change how each cell is ordered through repeated steps in an algorithm. The rules determine how cells change conditions over time. This happens multiple times until the CA stops changing and has reached an end state. Cellular automatons are many mathematical models studied in physics, computer science, social sciences, and other fields. Many natural phenomena, such as snowflakes, tree growth, and fire, inspire them. Cellular automatons are of interest for many reasons. One of them is that they are a non-linear model of physical phenomena. Given the same initial conditions, their outcomes may differ depending on the ruleset, much like non-linear differential equations. Another reason is that their rule sets are often simple enough to be implemented in a computer, allowing in-silico experimentation. Finally, some cellular automatons are used in modeling social and technological phenomena. If the number of ON neighbors exceeds the number of ones, the cell changes its state to ON; if the numbers are reversed, it changes its state to OFF. These rules are self-executing and do not require any external input. Depending on the number and placement of cells, it is possible to construct a variety of interesting CA with various properties and behaviors. The most common rule for a one-dimensional grid is for updating each site (i.e., each grid cell) independently, based on the values of its current neighbors. Cellular Automaton is exciting and intriguing. They're easy to understand but hard to predict. You'll need to sit down with a cup of coffee and think deeply about how they work to start seeing their beauty. Primarily though, they're fun.

Cipher Block Chaining (CBC)

Are you prepared to "chain" yourself to the subject of Cipher Block Chaining (CBC)? It's a method of encrypting information that's used to help keep data safe, and despite how dull it may sound, it's pretty fascinating! CBC, or "block chaining," is a method for encrypting data. This method gets its name because it operates by first dividing the data into blocks and then chaining them together. The output of one block is used as the input for the subsequent block, meaning each block must be encrypted using a unique secret key. Because of this, it is significantly more difficult for potential attackers to decode the data since they would need to crack the encryption for each block in the chain. The CBC algorithm needs to be foolproof, as it has weaknesses that can be exploited by malicious actors, such as when they use padding attacks or other similar techniques. But in general, it is a reliable method for encrypting data. It is used extensively in various contexts, including SSL/TLS protocols, virtual private networks (VPNs), and disc encryption. You may be questioning why we must use encryption in the first place. Consider all the sensitive information, like credit card numbers, login credentials, personal messages, and more, that we send and receive over the internet. If someone with bad intentions were to obtain access to such information, they could put it to any number of unethical uses if they so chose. Even if unauthorized parties receive our data, encryption can ensure that it will remain secure and confidential. Cipher Block Chaining may not be the most exciting topic, but it is crucial for everyone who cares about security and privacy. That is all there is to it, folks; I hope you found this information useful. #CBC #Encryption #Cybersecurity #DataPrivacy #SSL #TLS #VPN #DiskEncryption

Carrier IQ

If your phone company knows more about you than you do, it's probably Carrier IQ. Carrier IQ is a company that provides analytics software to various telecom providers. They've developed programs that offer information about smartphone users to cellphone carriers, like what apps they use, how often they use them, how long they spend on them, and even where the user is using them. The problem with this is that there needs to be a way for an average user to know whether or not her carrier has installed these programs on her phone. Even if she knows that her page uses the Carrier IQ program, she cannot opt out of it or stop it from collecting data about her activities and movements. The fact that this kind of information is being collected without our knowledge or consent raises serious privacy concerns—yet we have no say in whether or not our carriers can do this. Privacy advocates are up in arms over the Carrier IQ scandal, which involves a company collecting performance data on smartphone users. Carrier IQ gathers performance data, tracking and logging what users do on their phones. This can include calls made, texts sent, and emails received. While this is not necessarily an invasion of privacy in terms of content (e.g., Carrier IQ does not have access to the actual content of phone calls), it does present a risk to user privacy because it allows third parties access to information about whom you called or texted, whether you're using your phone to browse the web or send emails, etc. The issue came to light when reports revealed that Carrier IQ had collected information about users' phone activity without their knowledge or consent. It was reported that some phones were even sending data from users' text messages directly to Carrier IQ without permission from the device's owner!

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Merge Replication

Consider the two of you as buddies. Let's call her Maria, the one buddy who never fails to share the most recent and delicious news and tidbits. The other pal, who we'll name Jake, is the one who maintains tabs on everything that goes on in the group. Although Maria and Jake are both highly competent in their fields, they have decided to share information frequently to ensure everything is clear. This is analogous to the process of Merge Replication, in which two databases share information and maintain consistency through mutual updates. Merge Replication is a specific kind of replication that facilitates the creation of several autonomous databases that share the same data. These databases can be in separate places and maintained by different people, but they all sync up to ensure everyone gets the same information. The term "synchronization" refers to sharing data between databases. Let's pretend for a moment that Jake is concerned that Maria has been out of the loop for a few weeks due to her travels. Maria's database is updated with the new information he sends her. This is functionally analogous to how Merge Replication works. If one database is behind on updates, the other can send the missing changes, and the lagging database can quickly become up-to-date. Here's the scientific bit: the Merge Replication setup consists of a Publisher, a Subscriber, and a Distributor. Simply put, the Publisher is the data repository eager to share its wealth of knowledge with the world. An interested database, or "Subscriber," is the entity that contacts a publisher to request content publication. The Distributor acts as a liaison between the Publisher and the Subscriber, facilitating communication between the two parties and ensuring they are in sync. Snapshot replication is the mechanism through which the Publisher and the Subscriber share data. Here, the Publisher transfers the full database to the Subscriber, and the latter adjusts its data to precisely mirror the Publishers. Repeatedly doing this ensures that all data is consistent between the two sources. In this context, the Distributor is a key player. It monitors the Publisher's database for updates and notifies the Subscriber of any changes. The Subscriber then makes the corresponding adjustments to its own database so that it also accurately reflects the information in the Publisher's database. Merge Replication is like having a long-distance friendship in which you and your friend routinely share updates so that you always have the most up-to-date information. In this analogy, the Publisher represents Maria, who has all the most up-to-date information, and the Subscriber, Jake, keeps meticulous records of everything. And the Distributor represents the go-between who facilitates the interchange of information and keeps everyone in sync. Even more so than in a personal relationship, Merge Replication success depends on open communication and trust.

Jini

Jini is not just a programming model. It's a lifestyle! A Java-based architecture for developing service-oriented distributed applications is defined in the Jini Specification. This programming model allows the creation of secure, distributed systems composed of well-behaved network services. Jini helps build scalable and flexible networks, which are required attributes in distributed computing scenarios. Jini is also a new way of living your life—a lifestyle for people who want more from their days than just waking up, going to work, and coming home again. It's for people who want to be part of something bigger than themselves—a community of like-minded individuals who want to build scalable and flexible networks. Jini, the future of computing. It's not just a river in Egypt. It's a new way of thinking about using computers and the Internet. Jini is based on an idea that's been around for a while: that we should move away from a disk-drive-oriented approach to computing, where we have one computer on our desk and lots of other computers out there somewhere—to a network-adaptive process, where all of the resources are available over the network and look like, they're local. Jini makes this possible by developing scalable, evolvable and flexible dynamic computing environments. In other words, it creates resources over a network that looks like local resources. Jini may also be referred to as Apache River. Jini is one of the most feature-rich networks, with desirable features and facilities like non-protocol dependence, code mobility, and network-wide detection of hardware devices. It's also straightforward to use. You need to connect a printer or other device to your network. Without rebooting, it will automatically be detected by your computer (and any other computer on the web). Jini allows the addition of printers, storage and other devices to a network. The key concept here is code mobility—Jini enables these additions to devices on the web to detect themselves over that same network without rebooting! Beginning your journey into the world of Jini today is not a moment to be lost! Now is the time to start!

Organic Light-Emitting Diode (OLED)

The organic light-emitting diode, often known as an OLED, is a semiconductor device that emits light organically rather than incandescently. It's a display technology used in smartphones, TVs, computers, and smartwatches. Imagine it as a portable light source that can be configured to suit your needs and that can be utilized in a variety of different applications. OLED displays are constructed of small organic molecules that produce light when an electric current is applied. It's almost like a miniature fireworks display is taking place inside your gadget. The end product is a display that is vivid, brilliant and has deep blacks in addition to wide viewing angles. It is the equivalent of carrying your own personal cinema in the palm of your hand. Energy efficiency is OLED's finest feature. LCD displays that are more conventional do not need a backlight because the pixels themselves emit light. Hence, these displays do not have one. It is comparable to a lightbulb that can function independently of a lamp. Because of this, OLED displays consume less power, which is beneficial for electronic gadgets that must operate for a significant amount of time on a single charge. The adaptability of OLED is yet another of its many attractive features. OLED displays may be manufactured to be incredibly thin and flexible, making them an excellent choice for devices that need to be portable while still being able to withstand wear and tear. It's kind of like a lightbulb that you can bend and carry around with you. OLED technology can be employed in a wide variety of products, including but not limited to smartphones, televisions, computers, and smartwatches. Any person who is searching for a display that is flexible, offers deep blacks, has wide viewing angles and is energy efficient in its operation would do well to consider this product as an alternative. OLED stands for "organic light-emitting diode" and is shorthand for "display technology."