A video display controller or VDC is an integrated circuit which is the main component in a video signal generator, a device responsible for the production of a TVvideo signal in a computing or game system. Some VDCs also generate an audio signal, but that is not their main function.
The VDC is the main component of the video signal generator logic, responsible for generating the timing of video signals such as the horizontal and vertical synchronisation signals and the blanking interval signal. Sometimes other supporting chips were necessary to build a complete system, such as RAM to hold pixeldata, ROM to hold character fonts, or some discrete logic such as shift registers.
Most often the VDC chip is completely integrated in the logic of the main computer system, (its video RAM appears in the memory map of the main CPU), but sometimes it functions as a coprocessor that can manipulate the video RAM contents independently
A display device is an output device for presentation of information in visual or tactile form (the latter used for example in tactile electronic displays for blind people). When the input information is supplied as an electrical signal, the display is called an electronic display.
Some displays can show only digits or alphanumeric characters. They are called segment displays, because they are composed of several segments that switch on and off to give appearance of desired glyph. The segments are usually single LEDs or liquid crystals. They are mostly used in digital watches and pocket calculators. There are several types:
If you’re using it for video calls, it’s 10.1-inch display can track your movement and rotate so that it always faces you as you move around a room ...Stream videos (models with displays) ... with displays).
Bluesky recently added support for videos and instant messaging as well ... You can also control how it is displayed and who can comment on it by pressing the globe at the bottom left ...Control how your post is displayed and who can comment.
