Assessments - 2, GPA: 4.5
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Unit: kHz Vertical Frequency Like a fluorescent lamp, the screen has to repeat the same image many times per second to display an image to the user. The frequency of this repetition is called the Vertical Frequency or Refresh Rate. Unit: Hz Information For Better Display Adjust the computer resolution and screen injection rate (refresh rate) on the computer as described below to enjoy the best picture quality. You can have an uneven picture quality on screen if the best picture quality is not provided for TFT-LCD. • Resolution: **** x **** • Vertical frequency (refresh rate): 60 Hz TFT-LCD panels manufactured by using advanced semiconductor technology with a precision of 1ppm (one millionth) and above is used for this product. But the pixels of RED, GREEN, BLUE and WHITE color seem to be bright sometimes or some of black pixels could be seen. This is not from bad quality and you can use it without any problems. When cleaning the monitor and the panel outside, please apply the recommended small amount of cleaner by using a soft cloth to polish. Do not force the LCD area but rub softly. If excessive force is applied, you may stain it. If you are not satisfied with the picture quality, you can get better quality of picture by performing the "Auto Adjustment function" in display screen that is appeared as window termination button is pressed. If there's still noise after the automatic adjustment, use the Fine/Coarse adjustment func tion. When viewing a fixed screen for an extended period of time, a residual image or blurriness may appear. Change the mode to energy save or set a screensaver to move the picture when you need to be away from the monitor for an extended period of time. PRODUCT INFORMATION (Image Retention Free) LCD Monitors and TVs may have image retention when switching from one image to another especially after displaying a stationary image for a long time. This guide is to demonstrate correct usage of LCD products in order to protect them from Image retention. Warranty Warranty does not cover any damage caused by image retention. Burn-in is not covered by the warranty. What is Image retention ? During normal operation of a LCD panel, pixel image retention doesn't occur. However, if the same image is displayed for a long time, a slight difference in electric charge accumulates between the two electrodes which encase the liquid crystal. This may cause the liquid crystal to build up in a certain areas of the display. Thus, the previous image is retained 45 Information when switching to a new video image. All display products, including LCD, are subject to image retention. This is not a product defect. Please follow the suggestions below to protect your LCD from image retention. Power Off, Screen Saver, or Power Save Mode Ex) • Turn the power off when using a stationary pattern. • Turn the power off for 4 hours after 20 hours in use • Turn the power off for 2 hours after 12 hours in use • Use a Screen saver if possible • Screen saver in one color or a moving image is recommended. • Set the Monitor to power off with the PC Display Properties Power Scheme. Suggestions for specific applications Ex) Airports, Transit Stations, Stock Markets, Banks, and Controlling Systems We recommend that you follow set up of your display system program as below: Display Information together with Logo or Moving image cycle. Ex) Cycle : Display Information for 1 hour followed by a Display Logo or moving image for 1 minute. Change the Color Information periodically (Use 2 different colors). Ex) Rotate the Color Information with 2 colors every 30 minutes. Avoid using a combination of characters and background color with large difference in luminance. Avoid using Grey colors, which can cause Image retention easily. • Avoid: Colors with big difference in luminance (Black & White, Grey) Ex) • Recommended settings: Bright colors with little difference in luminance • Change the characters color and background color every 30 minutes 46 Information Ex) • Every 30 minutes, change the characters with movement. Ex) The best way to protect your monitor from Image retention is to set your PC or System to operate a Screen Saver program when you are not using it. Image retention may not occur when a LCD panel is operated under normal conditions. Normal conditions are defined as continuously changing video patterns. When the LCD panel is operated for a long time with a fixed pattern (-over 12 hours-), there may be slight difference in voltage between electrodes that work the liquid crystal (LC) in a pixel. The voltage difference between electrodes increases with time, forcing the liquid crystal to lean. When this occurs, the previous image may be seen when the pattern is changed. To prevent this, the accumulated voltage difference must be decreased. 47 Information Our LCD Monitor satisfies ISO13406-2 Pixel fault Class II 48 Appendix Contact SAMSUNG WORLDWIDE Note If you have any questions or comments relating to Samsung products, please...
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