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HP Display Technology

Looking to purchase a HP Monitor?

Having a monitor is essential in order to be able to use your computer. You need a monitor to start using your desktop. Even if you use laptop, you could still add an extra display to help boost your productivity.

HP has a wide range of high quality monitors to suit your usage need and also budget. Knowing the basics of display technology can help you find the right HP monitor to buy.

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    Display Basics


    Resolution is the number of horizontal and vertical pixels on a display screen. More pixels and higher resolution add up to an extremely rich, immersive experience.

    • HD has a resolution of 1280 x 720 pixels while FHD is 1080 x 1920 pixels and QHD is 2560 x 1440 pixels.
    • UHD/4K is a 3840 x 2160 resolution and 8 million pixels, roughly 5 million more pixels than QHD.
    • Compared to QHD, 4K display offers more details, less pixelation, and extra space to view more browser windows and documents at one time. The sharper images and fonts of UHD mean less eye strain and a more realistic depiction of images onscreen.

    Pixels Per Inch (PPI)

    Pixels per Inch (PPI) measures the pixel density of a screen, which can give you a good indication of the clarity and sharpness of the display.

    • PPI is calculated using the resolution and the diagonal size of the screen.
    • The pixels on a 27” UHD/4K display would be four times smaller (more Pixels per Inch) than the pixels on a 27” FHD display, leading to an image that is four times clearer.

    Viewing Angle

    The viewing angle of a display represents how far to the left or right, and how far down or up the content on the display can be observed without loss of image integrity.

    • In-Plane Switching (IPS) displays have an optimal viewing angle of up to 178 degrees horizontally and vertically, which allows the screen to be viewed comfortably from several positions.

    Contrast Ratio

    The contrast ratio is derived by the brightest luminance (white) divided by the darkest luminance (Black). For example, 400 cd/m² (nits) white, black = 0.4 cd/m² (nits), the contrast ratio is 1000:1.

    • Having a high contrast ratio is very beneficial to your eyesight. For example, a scene containing both bright and dark elements, a display can reproduce both elements correctly. That is, the dark areas will look suitably dark, while the bright areas will remain bright.
    • Displays with poor contrast ratios will give more of a "washed out" image due to less of a difference between dark and bright areas.

    Refresh Rate

    The refresh rate is the number of times a display's image is repainted or refreshed per second.

    • The refresh rate is expressed in hertz so a refresh rate of 60 Hz means the image is refreshed 60 times in a second.
    • Faster refresh rate is very important for gaming applications, and “nice to have” for most other applications. The result is you will get smoother scrolling with no tails and faster response for games.

    Ambient Light Sensor

    Ambient light refers to the natural lighting already present in the environment. Ambient light sensors will automatically detect lighting changes and automatically adjust the brightness of the notebook display for optimal viewing.

    • In low light environments, the ambient light sensor decreases brightness. Conversely, the LCD’s panel brightness is automatically increased in high brightness environments where light is more intense.
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