Terminology Lcd Samsung 23,5" UHD LED монитор серии 8 U24E850R

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OSD (On Screen Display)

On screen display (OSD) allows you to customize on-screen settings to optimize the picture quality as 

required. You can change the screen brightness, tint, size and many other settings using menus 

displayed on the screen.


The Gamma menu adjusts the grey scale that represents middle tones on the screen. Adjusting the 

brightness brightens the whole screen, but adjusting Gamma only brightens the medium brightness.

Grey scale

Scale refers to levels of color intensity that show variations of color change from darker areas to 

brighter areas on the screen. Changes to the screen brightness are expressed with black and white 

variation, and grey scale refers to the medium area between black and white. Changing the grey scale 

through Gamma adjustment will change the medium brightness on the screen.

Scanning rate

Scanning rate, or refresh rate, refers to the frequency of screen refreshes. Screen data is transmitted 

as it refreshes to display an image, although the refreshing is invisible to the naked eye. The number of 

screen refreshes is called scanning rate and is measured in Hz. A scanning rate of 60Hz means that 

the screen refreshes 60 times per second. The screen scanning rate depends on the performance of 

the graphics cards in your PC and monitor. 

Horizontal Frequency

Characters or images displayed on the monitor screen consist of numerous dots (pixels). Pixels are 

transmitted in horizontal lines, which are then arranged vertically to create an image. The horizontal 

frequency is measured in kHz and represents how many times horizontal lines per second are 

transmitted and displayed on the monitor screen. A horizontal frequency of 85 means that the 

horizontal lines that make up an image are transmitted 85000 times per second. The horizontal 

frequency is indicated in 85kHz.

Vertical Frequency

One image is made of numerous horizontal lines. The vertical frequency is measured in Hz and 

represents how many images can be created per second by those horizontal lines. A vertical 

frequency of 60 means that an image is transmitted 60 times per second. The vertical frequency is 

also called "refresh rate" and affects screen flicker.