51talk 电话:什么叫做OSD—屏幕显示状态

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什么叫做OSD—屏幕显示状态

OSDon-screen display的简称,即屏幕菜单式调节方式。一般是按Menu键后屏幕弹出的显示器各项调节项目信息的矩形菜单,可通过该菜单对显示器各项工作指标包括色彩、模式、几何形状等进行调整,从而达到最佳的使用状态。

摘要在做显卡驱动或者FrameBuffer相关的东东时,可能会碰到有关OSD方面的知识,下面把我搜索的资料整理如下,并有一个非常简单实用的例子,希望对大家有帮助!

-          OSD相关定义解释 OSD (On-Screen Display) 屏幕视控系统。早期的屏幕要调整设定,必须使用屏幕下方的旋转钮,可调整的功能较少。但是随着技术的进步,厂商发展出一项新的OSD功能,可在屏幕上显示屏幕的相关设定,操作的功能也比较多。 see:[url]http://www.broadcast.hc360.com/dic/html/3926.htm[/url]OSD(On-Screen Display)是在屏幕上直接显示使用者所调整的结果和设定的内容,目前许多数字式的屏幕都支持OSD,因此屏幕可显示的宽度、高度、亮度、对比和色系等设定都是直接在画面上进行,这个功能是直接由显示器硬件所支持的,不必使用操作系统的驱动程序,即使显示器所连接的计算机不开机也可以使用OSD。 see:[url]http://www.chungkt.hk/cit/DIC/O/O0048.HTML[/url]

-           on-screendisplay An on-screen display (OSD) is a control panel on a computermonitor or television screen that allows you to select viewing optionsand/or adjust components of the display, such as brightness, contrast,and horizontal and vertical positioning. On a computer monitor, anon-screen display is usually activated by buttons on the bottom of themonitor. As an example, one button may bring up a display of thebrightness and contrast levels, which may be adjusted by pressing themonitor‘s up or down arrow buttons. On a television screen, anon-screen display can usually be activated either through buttons onthe television set itself or through the remote control. Televisionon-screen displays are becoming increasingly complex and interactive.In addition to the visual calibration options, the on-screen displaymay allow you to view program information, search for programs, or putcertain channels under parental control.