Introduction to OSD (on screen display)

Summary
When you are working on the graphics card driver or framebuffer-related stuff, you may encounter OSD knowledge. Below we will sort out the information I searched as follows and provide a very simple and practical example, hope to help you!
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Author: Nie Fei (afreez) Beijing-Zhongguancun
Contact: afreez@sina.com
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Definition of OSD

OSD (on-screen display)
Screen video control system.

To adjust the settings of early screens, you must use the button at the bottom of the screen, which has fewer adjustable functions. However, with the advancement of technology, manufacturers have developed a new
OSD

Function, you can display screen settings on the screen, and there are many operations.

See: http://www.broadcast.hc360.com/dic/html/3926.htm

 

OSD

(
On-screen display

)
Is to directly display the user's Adjusted Results and set content on the screen, currently many digital screens support
OSD

Therefore, the screen display width, height, brightness, contrast, and color settings are directly on the screen. This function is directly supported by the display hardware, you do not need to use the driver of the operating system, even if the computer connected to the monitor does not start up.
OSD

.

See: http://www.chungkt.hk/cit/DIC/O/O0048.HTML

 

 

On-screen display

An on-screen display (OSD) is a control panel on a computer monitor
Or television screen that allows you to select viewing options and/or
Adjust components of the display, such as brightness, contrast, and
Horizontal and vertical positioning.

On
A Computer Monitor, an on-screen display is usually activated
Buttons on the bottom of the monitor. As an example, one button may
Bring up a display of the brightness
And contrast levels, which may be adjusted by pressing the monitor's up or down arrow buttons.

On
A television screen, an on-screen display can be usually be activated
Either through buttons on the television set itself or through
Remote control. Television on-screen displays are becoming increasingly
Complex and interactive. In addition to the visual calibration options,
The on-screen display may allow you to view program information, search
For programs, or put certain channels under parental control.

See:
Http://whatis.techtarget.com/definition/0,,sid9_gci967843,00.html

Here is an example:

Refer:
Http://www.hamans.com/osd/

I mentioned the need to download a small software. If necessary, I can leave my email and send it to you.

 

Original: http://blog.csdn.net/ganxingming/archive/2006/06/21/819375.aspx