Input signals refer to the signals sent from an external device or system to another device or system. These signals vary depending on the type and purpose of the sending and receiving devices. In display technology, input signals typically refer to video signals sent to a display to control the pixels on the screen.
Here are some common types of input signals:
Analog Signals:
- VGA (Video Graphics Array): VGA is an analog signal interface used to connect computers and monitors. It uses a 15-pin D-Sub connector to transmit images via analog signals.
- Composite Video: Also known as CVBS (Composite Video Baseband Signal), this is an analog video signal commonly found in early televisions and video recording devices.
Digital Signals:
- HDMI (High-Definition Multimedia Interface): HDMI is a high-definition multimedia interface that transmits uncompressed audio and video signals. It supports high-definition video and has become a standard interface for modern monitors and TVs.
- Display Port: Display Port is a high-definition digital display interface standard promoted by the Video Electronics Standards Association (VESA). It offers higher bandwidth than HDMI, supporting higher resolutions and refresh rates.
- DVI (Digital Visual Interface): DVI is a digital video interface that comes in three types: DVI-A (analog), DVI-D (digital), and DVI-I (analog and digital). DVI-D and DVI-I transmit digital signals.
- USB Type-C (Display Port over USB-C): Some USB Type-C interfaces support DisplayPort video output, allowing video, data, and power transmission through a single cable.
- Thunderbolt: Thunderbolt is a high-speed interface technology that combines PCI Express and Display Port data transfer protocols. It offers very high bandwidth and supports a variety of device connections.
- MIPI DSI (Mobile Industry Processor Interface Display Serial Interface): DSI is a display interface standard used for mobile devices and embedded systems, supporting high-speed serial data transmission.
Wireless Signals:
- Wi-Fi Display: Some monitors support Wi-Fi connections to mobile devices or computers, allowing for wireless video signal transmission.
- Miracast: Miracast is a Wi-Fi-based wireless display standard that enables wireless transmission of high-definition video between devices.
When choosing a monitor or connecting devices, it is essential to ensure that both the sending and receiving devices support the same type of input signal to ensure proper video transmission and display.
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