CN208158743U

CN208158743U - A kind of display main board with TV interface function

Info

Publication number: CN208158743U
Application number: CN201820611618.5U
Authority: CN
Inventors: 刘琴
Original assignee: Shenzhen High Speed Science And Technology Co Ltd
Current assignee: Shenzhen High Speed Science And Technology Co Ltd
Priority date: 2018-04-26
Filing date: 2018-04-26
Publication date: 2018-11-27
Anticipated expiration: 2028-04-26

Abstract

The utility model discloses a kind of display main board with TV interface function, including：Mainboard module and attached plate module, the mainboard module include：Master chip, the LCD Interface circuit being electrical connected respectively with the master chip, power supply circuit, audio input interface circuit and USB interface circuit, the attached plate module include：RF receives circuit and audio amplifier circuit, the mainboard module and attached plate module are electrical connected by expansion interface.The utility model the utility model is feature-rich, favorable expandability, both can also decode audio signal with decoding video signal, so that the range of choice of client is more flexible, reduces the buying pressure and cost risk of client.

Description

A kind of display main board with TV interface function

Technical field

The utility model relates to mother board technologies field more particularly to a kind of display main boards with TV interface function.

Background technique

For display currently on the market mostly to handle based on single video signal, common display main board only includes list VGA terminal or list DVI terminal, have a single function, scalability is poor.

Therefore, the prior art is defective, needs to improve.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of display master with TV interface function Plate.

The technical solution of the utility model is as follows：A kind of display main board with TV interface function, including：Mainboard module With attached plate module, the mainboard module includes：Master chip, the LCD Interface circuit being electrical connected respectively with the master chip, Power supply circuit, audio input interface circuit and USB interface circuit, the attached plate module include：RF receives circuit and audio amplification Circuit, the mainboard module and attached plate module are electrical connected by expansion interface.

Further, the mainboard module is connected with attached plate module by the expansion interface of 40PIN.

Further, the master chip model TSUMV56RU.

Further, the mainboard module further includes：USB interface, expansion interface and audio input interface.

Further, the attached plate module further includes：RF interface, HDMI interface, USB interface, AV interface and audio output Interface.

Using the above scheme, the utility model is feature-rich, favorable expandability, can also both be solved with decoding video signal Code audio signal reduces the buying pressure and cost risk of client so that the range of choice of client is more flexible.

Detailed description of the invention

Fig. 1 is the structural block diagram of the utility model.

Fig. 2 is the circuit diagram of the utility model.

Fig. 3 is the power supply circuit schematic diagram of the utility model.

Specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.

It please referring to Fig.1 to Fig.3, the utility model provides a kind of display main board with TV interface function, including：Mainboard Module 100 and attached plate module 200, the mainboard module 100 include：Master chip 101, respectively with the electrical phase of the master chip 101 LCD Interface circuit 102, power supply circuit 103, audio input interface circuit 104 and USB interface circuit 105 even, it is described attached Plate module 200 includes：RF receives circuit and audio amplifier circuit, the extension that the mainboard module and attached plate module pass through 40PIN Interface is electrical connected.It include power-supplying circuit 103. in the mainboard module 100, it can be to master chip 101 and other are heavy Circuit is wanted to power, supply voltage includes：5V, 3.3V, 1.8V and 1.15V, the master chip 101 can focus on audio/video information And it is converted into rgb signal driving liquid crystal display and shows.The RF in the attached plate module receives circuit and can connect RF antenna The high-frequency signal received is demodulated to the intermediate-freuqncy signal that the master chip 101 can identify by R842 module 202, and with differential signal Form is transferred to the master chip 101.Master chip can be demodulated the weak audio signal come and increased by the audio amplifier circuit Benefit amplifies and drives sound horn, is changed into the audio-frequency information that human ear can identify.

In the present embodiment, the model TSUMV56RU of the master chip 101.The mainboard module 100 further includes：VGA Interface, expansion interface and audio input interface, the attached plate module 200 further include：RF interface, HDMI interface, USB interface, AV Interface and audio output interface, interface abundant are able to ascend practicability.

In conclusion the utility model is feature-rich, favorable expandability both can also decode sound with decoding video signal Frequency signal reduces the buying pressure and cost risk of client so that the range of choice of client is more flexible.

The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle Within the scope of shield.

Claims

1. a kind of display main board with TV interface function, which is characterized in that including：Mainboard module and attached plate module, it is described Mainboard module includes：Master chip, the LCD Interface circuit being electrical connected respectively with the master chip, power supply circuit, audio are defeated Incoming interface circuit and USB interface circuit, the attached plate module include：RF receives circuit and audio amplifier circuit, the mainboard mould Block and attached plate module are electrical connected by expansion interface.

2. the display main board according to claim 1 with TV interface function, which is characterized in that the mainboard module and Attached plate module is connected by the expansion interface of 40PIN.

3. the display main board according to claim 1 with TV interface function, which is characterized in that the master chip model For TSUMV56RU.

4. the display main board according to claim 1 with TV interface function, which is characterized in that the mainboard module is also Including：USB interface, expansion interface and audio input interface.

5. the display main board according to claim 1 with TV interface function, which is characterized in that the attached plate module is also Including：RF interface, HDMI interface, USB interface, AV interface and audio output interface.