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HP w1907の取扱説明書・マニュアル [全11ページ 2.56MB]

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Maruko H. - 2013-09-01
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9 The HP advantage The HP pixel defect specifications are part of HP's ongoing effort to provide high quality products. When it comes to LCD -TFT displays, fewer pixel defects mean bett er quality. HP quality and reliability HP prides itself on a reputation for industry -standard best -of-breed products -and our line of LCD monitors is a testament to that reputation. HP quality and reliability helps reduce maintenance, repair, and support c osts throughout the monitor lifecycle and result in a high residual value for HP products. The HP strong market share reflects a global awareness and strong customer loyalty to the HP full line of innovative and competitively priced products. Here's how HP builds quality into every product.  Customer feedback : HP products are a result of extensive customer feedback, including focus groups, trade shows, customer visits, support calls, human factors studies and surveys of thousands of desktop users.  Testing : H P internal product teams help ensure reliability and long life by testing every model with hundreds of third -party devices in a variety of networked environments to simulate years of real -world stress. HP systematically pushes its products to make sure the y will perform in the toughest workplace conditions.  Factory audits : Before leaving the factory, each unit passes a rigorous examination to help minimize defects and increase likelihood of operation out of the box.  Engineering excellence : HP quality does n ot stop at the factory door. Our service and engineering teams continue to support each unit throughout its lifecycle. The award -winning HP call center quickly resolves most issues on the first call. Designed with the environment in mind HP environmental p olicies are designed to help integrate sound environmental practices into every aspect of product design, including the following features:  EPEATTM: The Electronic Product Environmental Assessment Tool (EPEAT) is a set of voluntary environmental performance criteria established by the IEEE 1680 American National Standard for the Environmental Assessment of Personal Computer Products that identifies 23 required and 28 optional criteria. Select HP business monitors are designated EPEAT Silver, indicating that they meet all of the required criteria and at least 14 of the optional criteria. The HP L1950g and HP L2245wg are designated EPEAT Gold, which indicates they meets all 23 required criteria plus at least 21 of the optional criteria.  Low emissions : HP monit or products meet the demanding emissions, environmental, and ecological guidelines known as TCO 99 and TCO 03. TCO -approved products meet a number of strict new requirements set by TCO

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このマニュアルの目次

  • 1 .
    1 Understanding pixel def...
    1 Understanding pixel defects in LCD monitors Bob Myers Displays Business Unit Last revised: July 1, 2009 Introduction ................................ ................................ ................................ ......... 2 Executive summary ....
  • 2 .
    2 Introduction Liquid cr...
    2 Introduction Liquid crystal display (LCD) technology was first invented decades ago and has been improving ever since -to the point that today's high -quality flat panel displays deliver crisp, clear visual quality at a reasonable price. Even so, some...
  • 3 .
    3 Understanding TFT -LCD ...
    3 Understanding TFT -LCD technology Thin -film transistor (TFT) technology refers to a type of liquid crystal display (LCD), also known as an active -matrix LCD (AMLCD), used in all HP LCD monitors as well as HP iPAQ devices an d HP notebook displays. To ...
  • 4 .
    4 The advent of thin -fil...
    4 The advent of thin -film trans istor (TFT) technology allowed transistors to be placed at each picture element or sub -pixel. These can switch very quickly, and then hold the state of the sub -pixel while the panel drivers take care of the other rows and...
  • 5 .
    5 How to spo t a sub -pix...
    5 How to spo t a sub -pixel defect Due to their tiny size relative to the screen, defective sub -pixels can be extremely hard to see. A defect in a sub -pixel is, visually, a single, tiny spot that is so small, it may be visible only if you display it aga...
  • 6 .
    6 Table 2 . This policy ...
    6 Table 2 . This policy applies for HP monitors manufactured in May 2009 or later: Bright sub -pixel defects: 2 maximum Dark sub -pixel defects: 5 maximum Total sub -pixel defects: 5 maximum Full pixel defects: 0 allowed Note: the date of...
  • 7 .
    7 defects, and no sub -pi...
    7 defects, and no sub -pixel defects spaced closer than 15 mm, with a maximum of five total sub -pixel defects. Figure 2. Pixel fault definitions.
  • 8 .
    8 Defect type definitions...
    8 Defect type definitions Bright/dark dot : A sub -pixel stuck on or off. Bright spots/lines : Spots or lines that appear light in the display. Defects do not vary in size or intensity (contrast) when contrast voltage is varied. Contrast variation can b...
  • 9 .
    9 The HP advantage The H...
    9 The HP advantage The HP pixel defect specifications are part of HP's ongoing effort to provide high quality products. When it comes to LCD -TFT displays, fewer pixel defects mean bett er quality. HP quality and reliability HP prides itself on a re...
  • 10 .
    10 Development, the world...
    10 Development, the world's leading organization for quality and environme ntal certification.  Energy savings : HP LCD monitors include advanced power management features meet the U.S. Environmental Protection Agency's ENERGY STAR(R) requirements.  ...
  • 11 .
    11 For more information ...
    11 For more information For the HP sales office nearest you, please refer to your local phone directory, or call the HP regional office listed below. Corporate and North American headquarters Hewlett -Packard 3000 Hanover Street Palo Alto, CA 94304 -...