Bridged image processing system based on eDP protocol

Abstract

The utility model provides a bridge type image processing system based on an eDP protocol, the system comprises an upper computer, an SOC chip and a display module, the SOC chip comprises an eDP auxiliary channel control module used for receiving an instruction signal from the upper computer; the MCU module is used for analyzing the instruction signal, generating a corresponding reply instruction and transmitting the reply instruction to the display module through the eDP auxiliary channel control module; an eDP sending port is built in the upper computer, and an eDP receiving port is built in the display module; and a plurality of eDP main channels are arranged between the eDP sending port and the eDP receiving port, and are used for transmitting video data generated by the upper computer to the display module for display based on the reply instruction.

Description

Technical Field

[0001] The present application relates to the technical field of electronic data signal processing, and in particular to a bridge-type image processing system based on the eDP protocol. Background Art

[0002] Nowadays, the more display products pursue higher display quality, the higher the PPI (Pixels Per Inch) requirement, the bandwidth of the transmission interface needs to be increased, but this will increase production costs. And in some specific products, in order to pursue higher quality adaptability, the motherboard will actively confirm the display module to ensure the original design architecture. Generally speaking, the motherboard and display module are adapters from the same manufacturer. The display module is usually more expensive and difficult to obtain due to supply issues. Therefore, when the display module is damaged, the maintenance cost is usually extremely high or even impossible to repair, resulting in the need to replace the motherboard together. There are problems such as poor freedom and high cost, which cannot meet the differentiated needs of different customers. Utility Model Content

[0003] To this end, the utility model proposes a bridge-type image processing system based on the eDP protocol to solve the problem of adapting the display module to the mainboard in the prior art, thereby reducing the production cost.

[0004] An embodiment of the present application provides a bridge-type image processing system based on the eDP protocol, the system comprising: a host computer, a SOC chip and a display module, wherein: the SOC chip comprises: an eDP auxiliary channel control module, for receiving a command signal from the host computer; an MCU module, for parsing the command signal, generating a corresponding reply command and transmitting the reply command to the display module through the eDP auxiliary channel control module; the host computer is provided with a built-in eDP sending port, and the display module is provided with a built-in eDP receiving port; a plurality of eDP main channels are arranged between the eDP sending port and the eDP receiving port, for transmitting the video data generated by the host computer to the display module for display based on the reply command.

[0005] In some embodiments, the eDP auxiliary channel control module specifically includes an auxiliary channel receiving module and an auxiliary channel transmission module, wherein: the auxiliary channel receiving module is used to receive a command signal from the host computer; the auxiliary channel transmission module is used to transmit the reply command generated by the MCU module to the display module; or, the auxiliary channel transmission module is used to transmit the reply command to the host computer.

[0006] In some embodiments, a touch and display driver integrated chip is provided in the display module, and the touch and display driver integrated chip generates touch point reporting data based on the sensed user input information. The MCU module is also used to receive the touch point reporting data, perform protocol transcoding, and output it to the host computer.

[0007] In some embodiments, the MCU module also includes: a first integrated bus circuit, used to receive the touch point reporting data from the display module; an MCU processor, receiving the touch point reporting data transmitted by the first integrated bus circuit, and performing protocol transcoding on the touch point reporting data to obtain data in a predetermined format; and a second integrated bus circuit, used to receive the data in the predetermined format and output it to the host computer.

[0008] In some embodiments, the MCU processor also includes: a first memory and a second memory, which are respectively used to cache the software executed by the MCU processor and the cache data generated when the MCU processor runs the software.

[0009] In some embodiments, the SOC chip further includes: a universal asynchronous receiver-transmitter for data transmission between the SOC chip and an external terminal.

[0010] In some embodiments, the SOC chip further includes: an interface processing module, the interface processing module including: a pulse width modulation interface for adjusting the backlight intensity of the display module based on the control of the MCU module; and a general input and output interface for connecting external devices.

[0011] In some embodiments, the SOC chip further includes: a power management module, configured to provide different voltage outputs according to voltage specifications of each module within the SOC chip.

[0012] The utility model provides a bridge-type image processing system based on the eDP protocol, and proposes a new architecture of a SOC chip. The SOC chip is a dedicated bridge chip between a mainboard and a display module. The solution proposes an easy-to-update, low-cost mainboard and display module solution, and there will be no maintenance problem of not being able to find the original display module, thereby reducing the difficulty and cost of implementation and meeting the differentiated needs of consumers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of a bridge-type image processing system 100 based on the eDP protocol provided in an embodiment of the present application;

[0014] Figure 2 A schematic diagram of the structure of a bridge-type image processing system 200 based on the eDP protocol provided in an embodiment of the present application. DETAILED DESCRIPTION

[0015] The following will describe the specific implementation of the utility model in more detail with reference to the schematic diagram. The advantages and features of the utility model will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in exact proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.

[0016] Embodiment 1 Embodiment 1 of the present application provides a bridge-type image processing system based on the eDP protocol. Figure 1 This is a structural diagram of the bridge-type image processing system 100 based on the eDP protocol provided in the embodiment of the present application, see Figure 1 The system 100 includes: a host computer 1, a SOC chip 2 and a display module 3, wherein the SOC chip 2 includes: an eDP auxiliary channel control module (AUX Channel) 10, which is used to receive a command signal from the host computer 1; an MCU module 20, which is used to parse the command signal, generate a corresponding reply command and transmit the reply command to the display module 3 through the eDP auxiliary channel control module 10; the host computer 1 has a built-in eDP transmission port (AUX Channel TX) 30, and the display module has a built-in eDP receiving port (AUX Channel RX) 40; a plurality of eDP main channels (eDP lanes) 50 are arranged between the eDP transmission port 30 and the eDP receiving port 40, which are used to transmit the video data generated by the host computer 1 to the display module 3 for display based on the reply command.

[0017] In the embodiment of the present application, there are multiple eDP main channels 50, which are used for direct communication between the host computer 1 and the display module 3, and transmit the video data of the host computer 1 to the display module for display. The eDP auxiliary channel control module 10 is deployed in the SOC chip 2. The command signal sent by the host computer 1 is parsed based on the eDP auxiliary channel control module 10, and the corresponding reply command can be obtained. The bridge-type SOC chip of this solution receives / replies to the relevant commands of the host, so as to achieve the technical effect of normal display, solve the compatibility problem of the host computer and the display module in the prior art, and as long as the corresponding reply command is transmitted to the host computer, different host computers and display modules can be adapted. In addition, data transmission based on the eDP protocol can realize multiple data transmission at the same time, with fast transmission speed, high video clarity, and no LVDS conversion circuit is required, and the circuit is simple.

[0018] Embodiment 2 Embodiment 2 of the present application provides a bridge-type image processing system based on the eDP protocol. Figure 2 The schematic diagram of the structure of the bridge-type image processing system 200 based on the eDP protocol provided in the embodiment of the present application is shown in FIG. Figure 2The system 200 includes: a host computer 1, a SOC chip 2 and a display module 3, wherein the SOC chip 2 includes:

[0019] The eDP auxiliary channel control module (AUX Channel) 10 is used to receive a command signal from the host computer 1. Here, the eDP auxiliary channel control module specifically includes an auxiliary channel receiving module (AUX RX) and an auxiliary channel transmission module (AUX TX), wherein: the auxiliary channel receiving module is used to receive a command signal from the host computer 1, and the auxiliary channel transmission module is used to transmit the reply command generated by the MCU module to the display module 3. In some embodiments, the auxiliary channel transmission module is also used to transmit the reply command to the host computer 1.

[0020] The MCU module 20 is used to parse the command signal, generate a corresponding reply command, and transmit the reply command to the display module 3 through the eDP auxiliary channel control module 10 .

[0021] In the embodiment of the present application, the host computer 1 is built with an eDP transmission port (eDP TX) 30, and the display module is built with an eDP receiving port (eDP RX) 40; multiple eDP main channels (eDP lanes) 50 are set between the eDP transmission port 30 and the eDP receiving port 40, which are used to transmit the video data generated by the host computer 1 to the display module 3 for display based on the reply instruction. Here, the display module 3 is provided with a touch and display driver integrated chip (TDDI, Touch and Display Driver Integration) 60, and the touch and display driver integrated chip 60 generates touch point reporting data based on the sensed user input information, and the MCU module 20 is also used to receive the touch point reporting data for protocol transcoding and output to the host computer 1.

[0022] Specifically, the MCU module 20 further includes: a first integrated bus circuit (I 2C, Inter-Integrated Circuit) 201, MCU processor 202 and second integrated bus circuit 203, the specific process of MCU module 20 receiving the touch point reporting data, performing protocol transcoding and outputting it to the host computer 1 includes: the user performs a touch operation on the display module 3, and the touch and display driver integrated chip 60 generates touch point reporting data according to the user's output information after sensing the user's touch operation, the first integrated bus circuit 201 receives the touch point reporting data from the display module 3 and transmits it to the MCU processor 202, after the MCU processor 202 receives the touch point reporting data, it performs protocol transcoding on it to obtain data in a predetermined format, and then receives the predetermined format data obtained by the MCU processor through the second integrated bus circuit 203 and outputs it to the host computer 1.

[0023] In the embodiment of the present application, the eDP auxiliary channel control module 10 is an auxiliary channel of the eDP transmission interface. Its main purpose is that the host computer can use this interface to issue commands to the display module or read the data or status of the display module. The command signal sent by the host computer is received by AUX RX, parsed by the MCU, and then converted into a reply command that the display module can match. It is output to the display module by AUX TX, and the host can be replied to using AUX Channel in response to the needs of the host. In addition, the display module will output touch point reporting data, which is received by the I2C low-speed serial of the MCU, and then converted to the protocol by the MCU, and then output to the host computer. The eDP auxiliary channel control module 10 of this solution receives / replies to the relevant commands of the host computer, so as to achieve the purpose of normal display and reduce the manufacturing cost of the SOC chip.

[0024] In some embodiments, the MCU processor 202 further includes: a first memory and a second memory, which are respectively used to cache the software executed by the MCU processor and the cache data generated when the MCU processor runs the software. The memory can be 16KBytes.

[0025] In some embodiments, the SOC chip further includes: a universal asynchronous receiver / transmitter (UART) 21, which is used for data transmission between the SOC chip and an external terminal. A universal asynchronous receiver / transmitter is an asynchronous receiver / transmitter, which is a part of computer hardware and transmits data through serial communication, and is used for data transmission between the SOC chip 2 and an external terminal.

[0026] In some embodiments, the SOC chip further includes: an interface processing module 22, the interface processing module including: a pulse width modulation interface for adjusting the backlight intensity of the display module based on the MCU module control; and a general input and output interface for connecting external devices.

[0027] In some embodiments, the SOC chip further includes: a power management module 23, which is used to provide different voltage outputs according to the voltage specifications of each module inside the SOC chip.

[0028] The bridge-type image processing system based on the eDP protocol provided in the embodiment of the present application includes a dedicated bridge SOC chip used between the host computer and the display module, including: AUX Channel RX / TX, MCU module, interface processing module and power management module. The MCU module has a built-in MCU processor to process the touch transcoding function and perform process control. The bridge-type SOC chip provided by the present solution receives / replies to the host's related commands, achieving a solution that can display normally and reduce costs.

[0029] The above description is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any technician familiar with the profession can make various changes, modifications, substitutions and variations to these embodiments without departing from the principle and purpose of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A bridge-type image processing system based on the eDP protocol, characterized in that: The system includes: a host computer, a SOC chip and a display module, wherein: The SOC chip includes: an eDP auxiliary channel control module, which is used to receive a command signal from the host computer; an MCU module, which is used to parse the command signal, generate a corresponding reply command, and transmit the reply command to the display module through the eDP auxiliary channel control module; The host computer has a built-in eDP transmission port, and the display module has a built-in eDP receiving port; A plurality of eDP main channels are arranged between the eDP sending port and the eDP receiving port, and are used to transmit the video data generated by the host computer to the display module for display based on the reply instruction.

2. The system according to claim 1, characterized in that The eDP auxiliary channel control module specifically includes an auxiliary channel receiving module and an auxiliary channel transmission module, wherein: The auxiliary channel receiving module is used to receive a command signal from the host computer; The auxiliary channel transmission module is used to transmit the reply instruction generated by the MCU module to the display module; or, the auxiliary channel transmission module is used to transmit the reply instruction to the host computer.

3. The system according to claim 2, characterized in that The display module is provided with a touch and display driver integrated chip, which generates touch point reporting data based on the sensed user input information. The MCU module is also used to receive the touch point reporting data, perform protocol transcoding, and output it to the host computer.

4. The system according to claim 3, characterized in that The MCU module also includes: A first integrated bus circuit is used to receive the touch point reporting data from the display module; The MCU processor receives the touch point reporting data transmitted by the first integrated bus circuit, and performs protocol transcoding on the data to obtain data in a predetermined format; The second integrated bus circuit is used to receive the predetermined format data and output it to the host computer.

5. The system according to claim 4, characterized in that The MCU processor also includes: a first memory and a second memory, which are respectively used to cache the software executed by the MCU processor and cache data generated when the MCU processor runs the software.

6. The system according to claim 5, characterized in that The SOC chip also includes: A universal asynchronous receiver-transmitter is used for data transmission between the SOC chip and an external terminal.

7. The system according to claim 6, characterized in that The SOC chip further includes an interface processing module, which includes: A pulse width modulation interface, used to control and adjust the backlight intensity of the display module based on the MCU module; And general input and output interfaces for connecting external devices.

8. The system according to claim 7, characterized in that The SOC chip also includes: The power management module is used to provide different voltage outputs according to the voltage specifications of each module inside the SOC chip.

Images