In this blog post, we’ll focus on temperature and thermal management systems—particularly the role of thermal interface material (TIM)—which significantly impact the lifespan of LEDs. LEDs and Heat: Why Temperature Matters An LED (Light Emitting Diode) is a device that emits light when an electric current flows through a compound semiconductor junction, causing electrons and holes to...
In this blog post, I will provide an easy-to-understand overview of the basic principles and structures of LCD and OLED, as well as the pros and cons of each technology. Basic Concepts of Displays Displays are core components that serve as the “face” of most electronic devices, such as TVs, computers, and smartphones. As electronic devices have become more sophisticated, the demand for...
In this blog post, I will summarize the current state of K League broadcasts and related programs, as well as the reasons why they need to be improved. Current Situation: Broadcasts Focus on European Soccer, K League Takes a Back Seat Currently, soccer-related programming in Korea is overly biased toward European leagues, while K League-related broadcasts are relatively scarce. For...
In this blog post, we’ll explore why JPG is so widely used on the web, how it’s compressed, and its pros and cons. Everyone has probably seen a warning at least once that they must use the .jpg file extension when uploading an image to an online forum. While there are various image file formats—such as BMP, JPG, GIF, and PNG—JPG is by far the most widely and longest-used format on the web...
In this blog post, we examine the modern significance of IT by reviewing Nicholas G. Carr’s argument in “IT Doesn’t Matter” and the changes that have occurred over the past decade. The Origins of the IT Debate and Key Arguments In an article published in the Harvard Business Review in May 2003, Harvard University professor Nicholas G. Carr argued that “IT no longer matters.” He predicted...
In this blog post, we examine the safety, legal, and market issues raised by Uber’s introduction in Korea, as well as the need for regulation. Uber’s Service and Its Introduction in Korea Uber is an IT-based transportation brokerage service that connects passengers and drivers through a smartphone app and location-based services. Users enter their pickup and drop-off locations in the app...
In this blog post, we’ll explore how semiconductors have driven South Korea’s IT development and transformed our lives at an unprecedented pace. Korea and IT: The Background of Rapid Change When foreigners think of Korea, they often cite “kimchi” and “IT” as the first images that come to mind. While Korean kimchi has a distinct flavor all its own, it is an intriguing question how IT has...
In this blog post, we’ll take a look at how South Korea’s mobile communications industry has evolved, from 1G to the commercialization of CDMA and the subsequent smartphone competition. Market Shifts and the Rise of Korean Companies Around 2011–2012, South Korea’s mobile communications industry and smartphone manufacturers experienced remarkable growth. Samsung Electronics saw its...
In this blog post, we will explain the principles and structure of IC cards, how they differ from magnetic stripe cards, their security features, challenges in widespread adoption, and their future potential applications. There have been numerous news reports on IC cards. If you’ve recently applied for a credit or debit card, there’s a good chance you’ve already received a new card with a...
In this blog post, we will summarize the concept of Hydrocode, its differences from general CFD, as well as real-world application examples and research trends. The Role of Computer Simulation Computer simulation plays a crucial role when attempting to quantitatively analyze a phenomenon from a thermal and fluid dynamics perspective. In the past, physical test facilities such as wind...