CN211180805U - Control mainboard supporting upgrading of host display card and USB interface - Google Patents
Control mainboard supporting upgrading of host display card and USB interface Download PDFInfo
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- CN211180805U CN211180805U CN202020165860.1U CN202020165860U CN211180805U CN 211180805 U CN211180805 U CN 211180805U CN 202020165860 U CN202020165860 U CN 202020165860U CN 211180805 U CN211180805 U CN 211180805U
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Abstract
The utility model provides a support control mainboard of host computer display card and USB interface upgrading, it includes main control chip, temperature-sensing ware, fan, audio output unit, simulation audio input module, VGA input module, DVI input module, HDMI input module, DISP L AYORT input module, AV input module and software update module, the temperature-sensing ware with main control chip connects, main control chip is connected with fan, audio output unit respectively, simulation audio input module, VGA input module, DVI input module, HDMI input module, DISP L AYORT input module, AV input module, software update module are connected with main control chip respectively adopt the utility model discloses a technical scheme supports host computer display card upgrading, mainboard support USB interface upgrading, supports 2lane eDP signal output to and automatic sensitization, automatic thermal induction control.
Description
Technical Field
The utility model relates to a control mainboard especially relates to a control mainboard that supports host computer display card and USB interface to upgrade.
Background
At present, the L ED display driving scheme based on the Mstar and Realtek chip scheme in the market mostly adopts a plug-in burner to burn and update the firmware of a driving board, which can be greatly obstructed in the aspect of later market maintenance, has low efficiency and is not easy to operate.
The eDP interface is a fully digital interface based on DisplayPort architecture and protocol, can transmit high-resolution signals with simpler connectors and fewer pins, and has a data transmission rate much higher than L VDS, which is an important reason why the eDP interface replaces the L VDS interface.
1. The micro-packaging structure can realize simultaneous transmission of multiple data;
2. the transmission rate is high and can reach 21.6Gbps (four pairs of lines are used for transmission);
3. the small size is very beneficial to the lightness and thinness of the product;
4. an L VDS conversion circuit is not needed, and the circuit is simple;
and 5, the EMI is small, and the copyright protection function is strong.
Currently, to increase the data transmission rate between the panel and the processor, a large number of eDP interfaces have been adopted on the computer side and the processor platform of the mobile terminal, so that the eDP is rapidly becoming the mainstream interface.
At the same time, the display screen technology is continuously developed, the requirements on screen display effect are higher and higher, the resolution requirement is higher, how to provide an intelligent control mainboard supporting host display card and USB interface upgrading mainboard software is provided, and the technical problems that eDP signal output and L VDS signal output can be supported are urgently to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model discloses a support control mainboard of host computer display card and USB interface upgrading supports the intelligent control mainboard of host computer display card and USB interface upgrading mainboard software, can support eDP signal output and L VDS signal output.
To this end, the technical scheme of the utility model is that:
a control mainboard supporting host display card and USB interface upgrading comprises a main control chip, a temperature sensor, a fan, an audio output unit, an analog audio input module, a VGA input module, a DVI input module, an HDMI input module, a DISP L AYPORT input module, an AV input module and a software updating module, wherein the output end of the temperature sensor is connected with the main control chip, the output end of the main control chip is respectively connected with the input ends of the fan and the audio output unit, and the output ends of the analog audio input module, the VGA input module, the DVI input module, the HDMI input module, the DISP L AYPORT input module, the AV input module and the software updating module are respectively connected with the main control chip.
As a further improvement, the control mainboard that supports host computer display card and USB interface upgrading still includes Flash memory, backlight control module, LCD screen signal module, photo sensor and button control module, main control chip passes through the SPI bus and is connected with the Flash memory, main control chip's output respectively with backlight control module, LCD screen signal module's input is connected, photo sensor's output, button module are connected with main control chip respectively.
As a further improvement of the utility model, the audio output unit includes audio amplifier and loudspeaker, main control chip's audio output end is connected with audio amplifier's input, audio amplifier's output with the input of loudspeaker is connected.
As a further improvement of the utility model, the main control chip is connected with the power management chip.
As a further improvement of the utility model, the software updating module comprises a MCU chip for converting USB to IIC. Furthermore, the model of the MCU chip is FT2232C-U11, and the software updating module comprises a four-bus buffer U12.
As a further improvement of the utility model, the photo sensor is photosensitive diode, can realize auto-induction environment brightness control luminance in a poor light, supports 10 grades of uniform variation.
As the utility model discloses a further improvement, main control chip is MCU, main control chip's model is TSUMOP38GDRG, and this chip supports display card upgrading software information.
Furthermore, the hardware of the control mainboard supporting the host display card and the USB interface upgrading supports a USB2.0 wire to connect the mainboard for directly upgrading the firmware, and the functions comprise the mutual conversion of MCU-FT2232C with a USB-to-IIC interface.
The hardware of the control mainboard of the technical scheme supports the direct software upgrading of the host display card, and an external tool is not needed for connecting the mainboard and the host. The audio and video signals can be transmitted directly through video signal lines such as HDMI and DP signal lines, MCU software can be upgraded, and operation and maintenance of the machine are facilitated.
Compared with the prior art, the beneficial effects of the utility model are that:
adopt the utility model discloses technical scheme's hardware can support host computer display card upgrade drive plate software and USB interface upgrade mainboard software for the customer maintains the mainboard function and makes things convenient for intelligence more simultaneously support VGA, HDMI, DVI, displayPort, AV signal input, support 10bits L VDS output and 2L ane eDP output, support automatic sensitization control luminance in a poor light, support auto-induction ambient temperature, control mainboard work function.
Drawings
Fig. 1 is a block diagram of a control motherboard supporting upgrading of a host display card and a USB interface.
Fig. 2 is a circuit diagram of the software update module of the present invention.
Fig. 3 is a circuit diagram of a photo sensor circuit according to the present invention.
Fig. 4 is a schematic diagram of the working principle of the temperature sensing module of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, an intelligent control motherboard supporting a host display card and USB interface to upgrade motherboard software includes an MCU main control chip TSUMOP38GDRG, an HDMI input module, a DVI input module, a VGA input module, a DisplayPort input module, a fan module, an AV input module, a software update module, an audio amplification module, an analog audio input module, a temperature sensing module, a light sensing module, a liquid crystal display signal output module, a backlight control module, a key control module, and a Flash storage module. The HDMI input module, the DVI input module, the VGA input module, the DisplayPort input module, the AV input module, the software updating module and the analog audio input module are respectively connected with a signal input end of a TSUMOP38GDRG of the MCU main control chip; and the fan module, the audio amplification module and the liquid crystal screen signal output module are respectively connected with the output end of the MCU master control chip TSUMOP38 GDRG.
As shown in fig. 1, the temperature sensing module senses the change of the external temperature, converts the change into a digital signal, and enters the MCU main control chip TSUMOP38GDRG, and the MCU main control chip TSUMOP38GDRG outputs a control signal to control the switch of the fan module, so as to achieve the purpose of automatically controlling the temperature. As shown in the working principle of the temperature sensing module shown in fig. 4, U8 is a temperature control digital sensor, which can sense temperature and convert the temperature into digital signals, and connects the digital signals to the MCU master control chip TSUMOP38GDRGT _ DET signal control pin through pin 2 via R91; the master control chip TSUMOP38GDRG controls the output FAN _ EN to be at high and low levels according to the state of T _ DET, and is connected with the B pole of Q4 through R118, and the Q4.C pole is connected with R113 and R116 and respectively connected with the S pole and the G pole of Q3, when Fan _ EN is at high level, Q3 is conducted, and the pin J1.3 supplies power to the FAN. When the voltage is low, the fan is turned off.
As shown in fig. 1, the photo sensor is a photo diode, as shown in fig. 3, J2 is a connection terminal of the photo diode, and after the photo diode is connected, the external brightness is automatically sensed, the light signal is converted into an adjustable PWM signal through voltage division by resistors R119 and R120, and enters the MCU main control chip tsummop 38GDRG, and the MCU main control chip tsummop 38GDRG outputs a signal to control the backlight control module, so as to achieve the purpose of automatically controlling the screen brightness.
As shown in fig. 1, the MCU main control chip tsump 38GDRG needs to be burned with a firmware to drive the motherboard to work normally, and the burning software of the MCU main control chip tsump 38GDRG is performed through the IIC channel, and most hosts do not have IIC interfaces. How to realize that the mainboard normally works by only one USB line burning software without an external burning tool becomes the problem to be solved by the current mainboard. This function can be realized by the software update module of the present embodiment, as shown in fig. 1.
As shown in fig. 2, the software updating module includes a micro control chip FT2232C-U11 for USB communication signal to IIC communication, a four bus buffer U12. jp15 is a standard USB2.0 interface, and is connected to U11.8 and U11.7 through matching resistors R161 and R162, respectively, capacitors C172 and C173 are filter capacitors, U11.4 is a reset pin, and forms an RC reset circuit through R168 and C176, an oscillating circuit of the U11 chip is formed by Y2, C174 and C175, a pin U11.22 is connected to a pin U12.3 through resistors R159 and R156, a pin U11.23 is connected to a pin U12.1 through R158, a pin U11.24 is connected to a pin U12.4 through R157, a pin U11.39 is connected to a pin U12.13 through R166, a pin U11.40 is connected to a pin U12.8 through ddcr 165 and ddcr 167, a pin id 56 is connected to a buffer of the U56, a level conversion control signal output of the buffer IIC, a pin sda, a pin is connected to a pin R172, a USB host controller bus controller, and a USB host controller connected to a USB host controller, and a USB host computer for controlling the USB host computer system for converting USB bus interface.
The control mainboard comprises an HDMI input module and a Displayport input module, and the audio and video signals of the host can be transmitted to the MCU main control chip TSUMOP38GDRG through the two digital interfaces and converted into liquid crystal display signals to display a picture; in addition, through these two digital signal interfaces, the host computer can directly communicate with MCU main control chip TSUMOP38GDRG, realize the video card and upgrade the function. At present, most of main boards on the market only support IIC interface definition upgrading software.
The audio amplifier module is connected with the audio output end of the MCU master control chip TSUMOP38GDRG, and is used for amplifying audio signals through the amplifying module and outputting sound through the loudspeaker module.
The backlight control module is connected with the output end of the TSUMOP38GDRG of the MCU master control chip and achieves the purpose of controlling backlight through an I/O port and PWM control.
The MCU master control chip TSUMOP38GDRG is connected with four power management chips, the output voltage can be adjusted, and the system voltages of 5V, 3.3V, 1.1V and 3.3V _ DDRAM required by the MCU master control chip TSUMOP38GDRG are output.
The control mainboard can support Display Port 1.2, HDMI1.4(DVI Optional), VGA signal input and AV signal input, mainstream high-definition digital input, bring better image quality experience, support USB communication protocol to upgrade firmware of a main control chip, support host Display card to upgrade firmware, support L VDS 10bits output and 2lane eDP signal output at a screen signal output end, intelligently regulate backlight brightness, intelligently control the environment temperature and audio amplification output of the whole machine, support high-definition digital interface signal input, improve screen brightness in an environment-friendly way, protect a screen backlight L ED lamp strip and prolong service life, dynamically adjust the brightness of a Display according to the intensity of external light, effectively protect eyes, clearly see screen pictures under strong light, improve picture quality, intelligently sense the environment temperature, control a fan switch to achieve the purposes of cooling, prolong the service life of the Display, close the fan at low temperature, achieve the purpose of energy conservation, provide an external power amplifier function, support 2 × 10W loudspeaker output, and realize diversified design and use of products.
The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the shape and structure of the present invention are within the protection scope of the present invention.
Claims (8)
1. A control mainboard supporting host display card and USB interface upgrading is characterized by comprising a main control chip, a temperature sensor, a fan, an audio output unit, an analog audio input module, a VGA input module, a DVI input module, an HDMI input module, a DISP L AYPORT input module, an AV input module and a software updating module, wherein the output end of the temperature sensor is connected with the main control chip, the output end of the main control chip is respectively connected with the input ends of the fan and the audio output unit, and the output ends of the analog audio input module, the VGA input module, the DVI input module, the HDMI input module, the DISP L AYPORT input module, the AV input module and the software updating module are respectively connected with the main control chip.
2. The control mainboard supporting host computer graphics card and USB interface upgrading of claim 1, characterized in that: the main control chip is connected with the Flash memory through an SPI bus, the output end of the main control chip is connected with the input ends of the backlight control module and the liquid crystal screen signal module respectively, and the output end of the light sensor and the key module are connected with the main control chip respectively.
3. The control mainboard of claim 2, wherein the control mainboard is capable of supporting upgrading of a host display card and a USB interface, and comprises: the audio output unit comprises an audio amplifier and a loudspeaker, the audio output end of the main control chip is connected with the input end of the audio amplifier, and the output end of the audio amplifier is connected with the input end of the loudspeaker.
4. The control mainboard supporting host computer graphics card and USB interface upgrading of claim 1, characterized in that: the main control chip is connected with the power management chip.
5. The control mainboard supporting host computer graphics card and USB interface upgrading of claim 1, characterized in that: the software updating module comprises an MCU chip for converting USB into IIC.
6. The control mainboard that supports host computer display card and USB interface upgrading of claim 5, characterized in that: the model of the MCU chip is FT2232C-U11, and the software updating module comprises a four-bus buffer U12.
7. The control mainboard of claim 2, wherein the control mainboard is capable of supporting upgrading of a host display card and a USB interface, and comprises: the light sensor is a photosensitive diode which automatically controls the backlight brightness.
8. The control mainboard supporting host computer graphics card and USB interface upgrading of any one of claims 1-7, characterized in that: the model of the master control chip is TSUMOP38 GDRG.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020165860.1U CN211180805U (en) | 2020-02-13 | 2020-02-13 | Control mainboard supporting upgrading of host display card and USB interface |
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| CN202020165860.1U CN211180805U (en) | 2020-02-13 | 2020-02-13 | Control mainboard supporting upgrading of host display card and USB interface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112904702A (en) * | 2021-01-26 | 2021-06-04 | 京东方科技集团股份有限公司 | Power supply circuit, display device and intelligent wrist-watch |
| CN114299888A (en) * | 2021-12-31 | 2022-04-08 | 连云港小牛电子科技有限公司 | Dynamic adjustment display module control system |
| CN116343699A (en) * | 2023-02-16 | 2023-06-27 | 深圳市羿智科技有限公司 | Display screen driving system |
-
2020
- 2020-02-13 CN CN202020165860.1U patent/CN211180805U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112904702A (en) * | 2021-01-26 | 2021-06-04 | 京东方科技集团股份有限公司 | Power supply circuit, display device and intelligent wrist-watch |
| CN114299888A (en) * | 2021-12-31 | 2022-04-08 | 连云港小牛电子科技有限公司 | Dynamic adjustment display module control system |
| CN116343699A (en) * | 2023-02-16 | 2023-06-27 | 深圳市羿智科技有限公司 | Display screen driving system |
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