Desktop monitors

The market share of LCDs varies with the application area and size. Since the introduction of LCDs in small devices like wristwatches, new applications like mobile telephones and laptops have emerged. Recently the monitor market and even the television market have become very attractive areas to apply LCDs. Figure 9.4 gives an overview of the flat panel revenues by application from quarter 1 in 2001 to quarter 1 in 2004. The highest revenues are obtained in LCDs for desktop monitors and notebooks. However, the market of mobile displays is by far the largest regarding the number of sold displays. 

The display technologies traditionally employed in these applications are LCDs, vacuum fluorescence displays, and inorganic LEDs. Industrial soiu-ces estimate that hy 2004-2005, organic LEDs (including PLEDs as well as LEDs based on small organic molecules) may capture between US 350 to US 700 million of that market (3,35). In the long run, PLEDs also have the potential to replace current high resolution video-rate displays in, eg, desktop monitors, ultrathin television sets, and the like. 

Computer monitoring and control systems have recently been introduced. These are designed to operate in place of conventional instrumentation. Using intelligent interface outstations connected to a desktop computer, many plant functions may be programed into the computer and controlled centrally. 

Cathode ray tubes (CRTs) are almost universally used in colour televisions and still dominate in the display monitors of desktop computers. They are obviously not suitable for laptop PCs, because of bulk and weight, where currently liquid crystal displays are the systems of choice. Neither are they the most suitable technology for very large area displays, where other display techniques such as plasma panels and electroluminescent devices offer advantages. 

A rating system for desktop computers, laptop computers, computer monitors, and workstations that classifies items according to 28 optional criteria, which evaluate their environmental attributes in order to aid purchasers in their decisions... 

Screen Saver Sets up an automatic screen saver to cover your screen if you have not been active for a certain period of time. Originally used to prevent burned monitors, they are now generally used for entertainment or to password-protect user s desktops. The Screen Saver tab also contains other power settings. 

When you start Windows, your monitor will show a screen (the desktop) which typically displays, on its left side, a number of pictures (icons), each with its own explanatory label. The bottom icon is labeled Start , and acts as the on switch of Windows. (There is no simple ojf switch, since Windows requires a more elaborate turn-off routine, which rather illogically begins with the Start button, and via the Shut Down command leads you to the Shut Down Windows dialog box, where you can choose between several options.)... 

Since the first date of publication of this book in 1991, the subject of phosphors and luminescence has assumed even more importance in the overall scheme of technological development. Many new types of displays have appeared which depend upon phosphors in their operation. Some of these were pure conjecture in 1991 but are a reality in 2003. The computer has continued to mature and manipulation of bit-rates by several billion per second are common in desktop applications (compared to kilobits per second in 1991). Many, if not aU, displays now use computers (or programmable controllers) to operate properly. I have included descriptions of the newer (as well as the older) types of displays in this edition along with an annotated portrait of the phosphors used in each category. Many of these new light sources promise to displace and make obsolete our current light sources, i.e.- incandescent lamps, fluorescent lamps and the ubiquitous color Cathode Ray Tube now used in TV and computer monitors. 

In principle one could monitor a GC effluent with a nondestructive detector like a TCD, pass it on through a suitable interface, and acquire and print out the mass spectra of peaks as they are eluting. With fast digital data converters and the speed and power of modern desktop PCs, it is better to simply acquire mass spectral data as a continuous sequence of spectra or selected mass fragment signals as the GC run proceeds. A data file in computer memory consists of a sequence of MS scans ordered by retention time. There are three main modes of acquiring and employing such data files ... 

Finnuala smiled sweetly and datavised an order into the desktop processor block. It accessed the net s police architecture again, and the monitor programs she designated went into primary mode. 

Each standard desktop build should be documented and tested with the combination of validated applications for which it is intended. Procedures must be in place for authorizing user access, protecting against and managing viruses and monitoring or auditing the ongoing desktop environment. 

The module assembly step includes attaching the backlight unit, which is the light source for the LCD. A typical desktop unit has four backlights that are placed around the edges of the display. The light projects across a diffuser screen to provide uniform illumination. The printed wiring boards, the power supply, and the plastic cover and stand are added to make an assembled monitor. 

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