

Flexible printed circuits are widely used today because of low cost, ease of assembly in interconnection systems, and the low volumes that they occupy. Board-to-board, board-to-chip, and chip-to-chip connections are areas where they are most used. They are also essential in packages with limited space and stacked rigid boards, thus demanding three-dimensional connections. The largest of use of flexible circuits can be seen in portable electronic products. These include notebook (NB), mobile phone, personal digital assistant (PDA) and information appliance (IA). The flexible printed circuit board, for example, can work as an interface between a liquid crystal show (LCD), a floppy disk driver (FDD), a hard disk driver (HDD) or a compact disc read only memory driver (CD-ROM) to a motherboard. Such is the wide usefulness of Flexible circuit boards. Flexible circuits with optical and electrical components have become essential since optoelectronics has spread into more and more applications. Prefabricated optical fibers are used to assemble flexible circuits in such situations. Wherever fiber management is needed circuit boards are used. Flexible optical circuits, for example, greatly used as as optical backplanes in order to interconnect a number of flexible printed circuit boards. These can also serve as ribbons of optical fibers in order to route the optical fibers in an designated There are four types of flexible printed circuit board. This division is based on functions. They are: lead line, printed circuit, connector, and integration function system. The flexible circuit connector includes an insulative housing mounted to the rigid circuit board. In all, it is obvious that with such varied features and uses flexible boards have emerged as a top choice as far as the electronic industry is concerned today for PCB Manufacturers.
As well as looking excellent on or off, they’re also better for viewing digital channels (you don’t need a digital box), or terrestrial channels (which will be turned off from next year as the digital switchover commences). And then there’s the picture quality, which experts say is far superior to the ancient CRT telly. With high definition technology, the screen delivers an image with more depth and less ‘visual noise’. This allows you to sit closer without your eyes straining. Add to this the fact that LCD (liquid crystal show) TVs have lower power consumption and a wider viewing angle, and you viewing experience has just gone from pre-historic to space age. Ready to slim down? Get with the programme There are two main categories of flat screens – plasma or LCD. On the eco-side, LCD screens use less power than plasma, but if it’s a larger, brighter ‘cinema’ style screen you’re after, opt for plasma (they range from about 42 to 100 inches). Size matters Flat screens are real attention-grabbers. Fantastic if you want to make it a feature, but not if you prefer more discreet appliances, or have a snugger living space (or bedroom/kitchen). For smaller models, John Kempner from John Lewis recommends Grundig. ‘Their new range of 15″ & 19″ models each have an integrated DVD player: brilliant value with prices starting from £249. For mid size (26″), the most well loved include the Samsung 26R87 (£549) and the Panasonic 26LMD70 (£549). ‘ Celebrate the silver screen If you have the space and enough mates to hold regular viewings, go large (32″+) and try Sony, Panasonic, Samsung, Philips or Toshiba. A recent Which? survey found Panasonic Viera TX-32LXD600the best LCD TV by virtue of its fantastic picture quality, wide viewing angles and extra features (such as memory cards for downloading pictures, from £1170). And Which? also commended the Sony Bravia KDL 40X2000U- 40 inch screen (about £2,300) as ‘a fantastic all-rounder’ with fantastic high definition pictures, impressive sound, and a light sensor to help save power consumption at night. Optimise the clarity Where will the flatscreen live? Avoid the glare from unwanted daylight or overhead lights by placing it thoughtfully. Overly-busy wallpaper may also distract viewers from the screen. _Which?_experts also recommend checking the clarity of pictures by bringing your own DVD to the shop and asking to try one on screen before you buy. Flat panel TVs use digital-processing software to place the picture on the screen, which may not be spot on, so look out for tell-tale signs of poor quality, such as jagged edges, colour fade and smearing. Celebrate your screen Reckon of a new, sleek flatscreen as a blank canvas on which to show artwork. John Kempner at John Lewis says, ‘Examples of TVs with built in photo card reader include the Panasonic 32LXD700 and the Panasonic 42PZ70. Many TVs from major brands have a USB socket which is a convenient way of connecting devices such as digital cameras to the TV or the PlayStation 3, from which you’re able to view slide shows or images of your choice. ‘ Remember the extras Although the majority of flatscreens are HD ready (showing sharper, more detailed, high definition pictures than those on your regular telly), you may still need to sign up (and pay for) certain packages such as Sky or Virgin to get HDTV broadcasts. It’s also worth checking if you’re in a Freeview reception area. Choose the eco option Sadly, plasma TVs consume about four times more energy than traditional cathode ray tube models. But, the best of a terrible bunch include the Philips 42PF7621D42 inch LCD television, which won European green TV of the year (still, it’s a hefty 210W output, compared to the ancient style telly – a portable uses only 39W). Get someone else to rig it up Hey, there’s only so much you can expect of your average Luddite. Marks and Spencer offer a full delivery, set up and tune in service on models over 26 inches, (and they’ll also recycle the packaging). }





