What interface does the projector use?

Question 1: What interfaces does the projector have? 1 and 15-pin VGA input interfaces of VGA-PC: connect to the host.

2.S-Video input: With the development of S-VHS video recorder, the video interface transmission signal is transmitted separately from brightness signal and color signal, which avoids the bright-color crosstalk problem of CVBS signal.

3. Composite video signal (AV): Brightness signal and chroma signal are added together by frequency-frequency overlap.

4.USB interface: At present, many projectors have USB interfaces, which are usually only used to transmit picture files.

5. Color difference input: The standard video interface of the United States and China: the brightness signal and color difference signal of the transmission signal are transmitted separately, which is certainly better than the retransmission of the composite signal of S-video.

6.RGBHV input (5BN attack): Because in 5 BNC connection, RGB and HV signals are transmitted by a professional BNC line respectively, unlike all signals in VGA, 5 BNC has better transmission characteristics than VGA. Coupled with the good contact performance of the socket (with its own fastening device), 5 BNC is usually used in special display fields.

7.DVI interface: Due to P &；; D Considering too much "compatibility", the maximum transmission speed of DFP is limited, and VESA has formulated DVI standard. DVI supports two sets of TMDS signal transmission, and supports [email protected] format at the highest, so it can be applied to video transmission from ordinary projectors, plasma displays and LCD to professional workstations. DVI is widely used in projectors and plasma displays, and about 30%-50% of high-end products have DVI interfaces. In the American market in 2003, it is estimated that 70% HDTV equipment will be equipped with DVI/HDMI input.

8.HDMI interface: HDMI interface has only one set of TMDS signals, so it returns to the starting point of DFP in terms of propagation format. HDMI interface itself is very similar to DFP. HDMI improves DFP by adding copyright protection HDCP and digital audio transmission, thus becoming a special multimedia information interface. HDMI supports 1920* 1080P high-definition digital signals and dolby digital /DTS digital audio formats. HDMI is expected to become the standard interface for future video equipment. In the second half of 2003, various devices with HDMI will appear one after another.

9.RS232 interface: communication protocol interface. Connected to the central controller, the controller can remotely control and detect the on-off state of the projector.

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Question 2: What is the interface between laptop and projector? Do you think it is blue or white? The blue one is the VGA cable.

The white one is a digital DVI line.

Question 3: What are the projector interfaces? What are the functions of projection? Like televisions and monitors, the interfaces are relatively complete, but there is no absolute standard. Most projectors have vga, AV, hdmi interfaces, and some have S-side interfaces. These are video input interfaces to receive video signals. Some projectors also have an audio interface, because the main function of the projector is not audio, so the audio interface generally has only one AV interface.

Question 4: There is a LAN interface on the projector. What is this for? That's for surfing the Internet.

The projector switch can be controlled remotely.

Make a network cable and connect it to the computer. The computer will recognize this LAN port.

Do it. It seems that it can also be used for transmission.

Question 5: What interfaces do projectors usually have and what functions do they have? 1 and 15-pin VGA input interfaces of VGA-PC: connected to the host.

2.S-Video input: With the development of S-VHS video recorder, the video interface transmission signal is transmitted separately from brightness signal and color signal, which avoids the bright-color crosstalk problem of CVBS signal.

3. Composite video signal (AV): Brightness signal and chroma signal are added together by frequency-frequency overlap.

4.USB interface: At present, many projectors have USB interfaces, which are usually only used to transmit picture files.

5. Color difference input: The standard video interface of the United States and China: the brightness signal and color difference signal of the transmission signal are transmitted separately, which is certainly better than the retransmission of the composite signal of S-video.

6.RGBHV input (5 BNC): In 5 BNC connection, both RGB and HV signals are transmitted through a professional BNC line, unlike all signals in VGA, so 5BNC has better transmission characteristics than VGA. Coupled with the good contact performance of the socket (with its own fastening device), 5 BNC is usually used in special display fields.

7.DVI interface: Due to P &；; D Considering too much "compatibility", the maximum transmission speed of DFP is limited, and VESA has formulated DVI standard. DVI supports two sets of TMDS signal transmission, and supports [email protected] format at the highest, so it can be applied to video transmission from ordinary projectors, plasma displays and LCD to professional workstations. DVI is widely used in projectors and plasma displays, and about 30%-50% of high-end products have DVI interfaces. In the American market in 2003, it is estimated that 70% HDTV equipment will be equipped with DVI/HDMI input.

8.HDMI interface: HDMI interface has only one set of TMDS signals, so it returns to the starting point of DFP in terms of propagation format. HDMI interface itself is very similar to DFP. HDMI improves DFP by adding copyright protection HDCP and digital audio transmission, thus becoming a special multimedia information interface. HDMI supports 1920* 1080P high-definition digital signals and dolby digital /DTS digital audio formats. HDMI is expected to become the standard interface for future video equipment. In the second half of 2003, various devices with HDMI will appear one after another.

9.RS232 interface: communication protocol interface. Connected to the central controller, the controller can remotely control and detect the on-off state of the projector.

For home use, AV, VGA-PC, S-Video, color difference, DVI and hdmi are more common, with the definition from low to high, and the highest is HDMI.

Question 6: What is the interface behind the computer that connects the projection? Blue ladder interface: VGA.

White rectangular interface: DVI

Small black rectangle with trapezoidal interface: HDMI

Question 7: What is the interface of the projector? Can I connect to the computer without serial port? At present, the projector supports almost all ports, including VGA interface, S-VIDEO interface, AV and so on.

Question 8: What interfaces does the projector have? Generally, there are HDMI, TF, USB, dc, and some vga interfaces, which are common high-definition digital interfaces in the market. If none of these interfaces can be used, you can buy a patch cord from a nearby place where you sell wires, so that you can easily connect the office equipment or mobile equipment you need with the projector. Some brands in the market, such as VEZ, NEC and Zhige, have relatively complete interfaces.

Question 9: What is the function of the projector monitor out interface? The significance of monitor out monitoring output.

Should I answer the TV box?

Question 10: What interface does the projector use to connect to the computer? The closest contact between the projector and the computer is the computer, and the VGA signal line and signal control line are used to directly connect with the desktop computer. The VGA signal line connects the video output interface of the computer and the VGA input interface of the projector.