CN111369930A - Display screen driving board, display screen driving system and driving method - Google Patents

Display screen driving board, display screen driving system and driving method Download PDF

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Publication number
CN111369930A
CN111369930A CN202010294128.9A CN202010294128A CN111369930A CN 111369930 A CN111369930 A CN 111369930A CN 202010294128 A CN202010294128 A CN 202010294128A CN 111369930 A CN111369930 A CN 111369930A
Authority
CN
China
Prior art keywords
display screen
programmable logic
microprocessor
logic array
driving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010294128.9A
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Chinese (zh)
Inventor
董斌
倪佩佩
李向丁
张磊
黎兴龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Myzy Fixture Technology Co Ltd
Original Assignee
Kunshan Myzy Fixture Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kunshan Myzy Fixture Technology Co Ltd filed Critical Kunshan Myzy Fixture Technology Co Ltd
Priority to CN202010294128.9A priority Critical patent/CN111369930A/en
Publication of CN111369930A publication Critical patent/CN111369930A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays

Abstract

The embodiment of the invention provides a display screen driving board, a display screen driving system and a driving method, wherein the display screen driving board comprises the following components: a microprocessor; the programmable logic array circuit comprises a signal input end and a signal output end, the signal input end of the programmable logic array circuit is in communication electric connection with the microprocessor, and the output end of the programmable logic array circuit is in communication electric connection with the display screen to be detected and is used for providing a driving signal for the display screen to be detected under the control of the microprocessor so as to control the display screen to be detected to display images. The embodiment of the invention provides a display screen driving board, a display screen driving system and a driving method, which are used for realizing test driving on various different display screens, improving the universality of the display screen driving board and reducing the cost of the display screen driving board.

Description

Display screen driving board, display screen driving system and driving method
Technical Field
The invention relates to a display driving technology, in particular to a display screen driving board, a display screen driving system and a driving method.
Background
In daily life, electronic products such as computers and mobile phones are an indispensable part, a display of the computer is provided with a display driving board, the general display driving board is provided with a video signal receiving end, an MCU (microprogrammed control unit) and a signal output end, and the display area driving board controls a display screen to display images through signals output by the signal output end.
In recent years, consumer electronics are in great demand, a large number of different types of display screens need to be tested, and in the existing design, a special driving chip corresponding to one type of display screen is usually adopted, and the integration level and the cost of the special driving chip are high.
Disclosure of Invention
The embodiment of the invention provides a display screen driving board, a display screen driving system and a driving method, which are used for realizing test driving on various different display screens, improving the universality of the display screen driving board and reducing the cost of the display screen driving board.
In a first aspect, an embodiment of the present invention provides a display screen driving board, including:
a microprocessor;
the programmable logic array circuit comprises a signal input end and a signal output end, the signal input end of the programmable logic array circuit is in communication electric connection with the microprocessor, and the output end of the programmable logic array circuit is in communication electric connection with the display screen to be detected and is used for providing a driving signal for the display screen to be detected under the control of the microprocessor so as to control the display screen to be detected to display images.
Optionally, a memory is included, the memory being in communicative electrical connection with the programmable logic array circuitry.
Optionally, the memory includes a memory and a flash memory.
Optionally, the signal output end of the programmable logic array circuit includes an MIPI interface, and the programmable logic circuit is in communication and electrical connection with the display screen to be detected through the MIPI interface.
Optionally, the signal input of the programmable logic array circuit comprises an FSMC interface, and the programmable logic array circuit is in communicative electrical connection with the microprocessor through the FSMC interface.
Optionally, the microprocessor includes an arm processor or a single chip microcomputer.
Optionally, the display device further comprises a power supply, and the power supply is electrically connected with the microprocessor, the programmable logic array circuit and the display screen to be detected.
In a second aspect, an embodiment of the present invention provides a display screen driving system, which includes the display screen driving board described in the first aspect, and a computer, where the computer is in communication and electrical connection with a microprocessor.
In a third aspect, an embodiment of the present invention provides a driving method for a display screen driving board based on the first aspect, including:
the programmable logic array circuit provides a first driving signal for a first display screen to be detected under the control of the microprocessor so as to drive the first display screen to be detected to display a first image;
and detecting the first image.
Optionally, after detecting the first image, the method further includes:
the programmable logic array circuit provides a second driving signal for a second display screen to be detected under the control of the microprocessor so as to drive the second display screen to be detected to display a second image;
and detecting the second image.
The embodiment of the invention provides a display screen driving board, which comprises a microprocessor and a programmable logic array circuit, wherein the microprocessor is configured to analyze a communication protocol and perform logic control, and the programmable logic array circuit is configured to provide different driving signals according to different display screen types so as to realize test driving on various different display screens, improve the universality of the display screen driving board and reduce the cost of the display screen driving board.
Drawings
Fig. 1 is a schematic structural diagram of a display screen driving board according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a display screen driving system according to an embodiment of the present invention;
fig. 3 is a flowchart of a driving method according to an embodiment of the present invention;
fig. 4 is a flowchart of another driving method according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a display screen driving board according to an embodiment of the present invention, and referring to fig. 1, the display screen driving board includes a microprocessor 10 and a programmable logic array circuit 20. The programmable logic array circuit 20 is also an FPGA circuit, the programmable logic array circuit 20 includes a signal input terminal 22 and a signal output terminal 21, the signal input terminal 22 of the programmable logic array circuit 20 is electrically connected to the microprocessor 10 in a communication manner, and the output terminal of the programmable logic array circuit 20 is electrically connected to the display screen 30 to be detected in a communication manner, and is configured to provide a driving signal for the display screen 30 to be detected under the control of the microprocessor 10, so as to control the display screen 30 to be detected to display an image.
The embodiment of the invention provides a display screen driving board, which comprises a microprocessor 10 and a programmable logic array circuit 20, wherein the microprocessor 10 is configured to analyze a communication protocol and perform logic control, and the programmable logic array circuit 20 is configured to provide different driving signals according to different display screen types so as to realize test driving on various different display screens, improve the universality of the display screen driving board and reduce the cost of the display screen driving board.
Optionally, referring to fig. 1, the display screen driver board further includes a memory 40, the memory 40 being in communicative electrical connection with the programmable logic array circuitry 20.
Optionally, referring to fig. 1, the storage 40 includes a memory 41 and a flash memory 42. The memory 41 is a DDR memory for caching display data. The flash memory 42 is a flash memory for storing pictures and video data.
Optionally, referring to fig. 1, the signal output terminal 21 of the programmable logic array circuit 20 includes a MIPI interface, and the programmable logic circuit 20 is electrically connected to the display screen 30 to be detected through the MIPI interface. In the embodiment of the present invention, the programmable logic circuit 20 is electrically connected to the display screen 30 to be detected through the MIPI interface, specifically, the programmable logic circuit 20 communicates with the display screen 30 to be detected through the MIPI protocol transmitted by the MIPI interface, and compared with a parallel interface, the module using the MIPI interface has the advantages of high speed, large data transmission amount, low power consumption, and good interference resistance, so that the communication rate with the display screen 30 to be detected is increased, and a display screen with higher size and resolution can be satisfied.
Illustratively, the wiring in the MIPI interface can adopt an isometric snake-shaped routing, and the surrounding copper is covered to be grounded so as to improve the anti-interference capability.
Alternatively, referring to FIG. 1, signal input 22 of programmable logic array circuit 20 comprises an FSMC interface through which programmable logic array circuit 20 is communicatively electrically connected to microprocessor 10.
Alternatively, referring to fig. 1, the microprocessor 10 includes an arm processor or a single chip microcomputer.
Optionally, referring to fig. 1, the display screen driving board further includes a power supply 50, and the power supply 50 is electrically connected to the microprocessor 10, the programmable logic array circuit 20, and the display screen 10 to be detected. The power supply 50 provides the microprocessor 10, the programmable logic array circuit 20, and the display screen 10 to be tested with the voltage or current required for operation. The power supply 50 may be a dedicated module capable of outputting a plurality of voltages to respectively supply power to the microprocessor 10, the programmable logic array circuit 20 and the display screen 10 to be tested, for example, the power supply 50 may output voltages of 1.2V, 2.5V and 3.3V.
It should be noted that the display screen driving board provided by the embodiment of the present invention has at least the following effects: various display screens can be supported; a good interactive interface is provided, and parameter setting is convenient; the system has abundant communication interfaces, and is convenient to be docked with other equipment; the method can adapt to the complex electromagnetic environment of a factory; supporting a C-PHY interface display screen; supporting a d-PHY interface display screen; support 4k fractional rates; monochrome/color/animation display is supported; the power-on sequence self-definition of a screen is supported; the backlight black insertion function is supported; the device is suitable for various production lines, and the machine type switching is simple and quick; the maintenance cost is low, and the automatic equipment system is convenient to butt joint.
Fig. 2 is a schematic structural diagram of a display screen driving system according to an embodiment of the present invention, and referring to fig. 2, the display screen driving system includes the display screen driving board in the above embodiment, and a computer 60, and the computer 60 is electrically connected to the microprocessor 10 in a communication manner. The display screen driving system in the embodiment of the invention comprises the display screen driving board in the embodiment, so that the display screen driving board in the embodiment has the beneficial effects that the universality of the display screen driving board is improved and the cost of the display screen driving board is reduced by testing and driving various different display screens.
Illustratively, referring to fig. 2, the computer 60 and the microprocessor 10 may communicate with each other through the SPI protocol.
Fig. 3 is a flowchart of a driving method according to an embodiment of the present invention, where the driving method is executed based on the display panel driving board in the foregoing embodiment, and referring to fig. 3, the driving method includes the following steps:
s101, the programmable logic array circuit provides a first driving signal for the first display screen to be detected under the control of the microprocessor so as to drive the first display screen to be detected to display a first image.
In this step, the microprocessor issues a control instruction, for example; the programmable logic array circuit loads picture data from the memory; the programmable logic array circuit converts the parallel data into serial data; data is sent to a signal output terminal (such as a D-PHY interface or a C-PHY interface) of the programmable logic array circuit; the display screen (i.e. the first display screen) decodes and displays the received first driving signal.
S102, detecting the first image.
The embodiment of the invention provides a driving method, in the driving method, a programmable logic array circuit provides a driving signal for a first display screen to be detected under the control of a microprocessor, the microprocessor 10 is configured to analyze a communication protocol and perform logic control, and a programmable logic array circuit 20 is configured to provide different driving signals according to different display screen types so as to realize test driving on various different display screens, improve the universality of a display screen driving board and reduce the cost of the display screen driving board.
Fig. 4 is a flowchart of a driving method according to an embodiment of the present invention, and referring to fig. 4, the driving method includes the following steps:
s201, the programmable logic array circuit provides a first driving signal for the first display screen to be detected under the control of the microprocessor so as to drive the first display screen to be detected to display a first image.
S202, detecting the first image.
S203, the programmable logic array circuit provides a second driving signal for the second display screen to be detected under the control of the microprocessor so as to drive the second display screen to be detected to display a second image;
and S204, detecting the second image.
Illustratively, the first display screen may be a VR display screen and the second display screen may be a mobile phone display screen. The driving method provided by the embodiment of the invention can be used for testing and driving various different display screens, so that the universality of the display screen driving board is improved, and the cost of the display screen driving board is reduced.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A display screen driving board, comprising:
a microprocessor;
the programmable logic array circuit comprises a signal input end and a signal output end, the signal input end of the programmable logic array circuit is in communication electric connection with the microprocessor, and the output end of the programmable logic array circuit is in communication electric connection with the display screen to be detected and is used for providing a driving signal for the display screen to be detected under the control of the microprocessor so as to control the display screen to be detected to display images.
2. The display screen driving board according to claim 1, further comprising a memory in communicative electrical connection with the programmable logic array circuitry.
3. The display screen driving board according to claim 2, wherein the memory includes a memory and a flash memory.
4. The display screen driving board according to claim 1, wherein the signal output terminal of the programmable logic array circuit includes a MIPI interface, and the programmable logic circuit is in communication and electrical connection with the display screen to be detected through the MIPI interface.
5. A display screen driver board according to claim 1, wherein the signal inputs of the programmable logic array circuitry comprise an FSMC interface, the programmable logic array circuitry being communicatively electrically connected to the microprocessor via the FSMC interface.
6. The display screen driving board according to claim 1, wherein the microprocessor includes an arm processor or a single chip microcomputer.
7. The display screen driving board according to claim 1, further comprising a power supply electrically connected to the microprocessor, the programmable logic array circuit and the display screen to be detected.
8. A display screen driving system comprising the display screen driving board of any one of claims 1 to 7, and a computer, said computer being in communicative electrical connection with the microprocessor.
9. A driving method of a display screen driving board according to any one of claims 1 to 7, comprising:
the programmable logic array circuit provides a first driving signal for a first display screen to be detected under the control of the microprocessor so as to drive the first display screen to be detected to display a first image;
and detecting the first image.
10. The driving method according to claim 9, further comprising, after detecting the first image:
the programmable logic array circuit provides a second driving signal for a second display screen to be detected under the control of the microprocessor so as to drive the second display screen to be detected to display a second image;
and detecting the second image.
CN202010294128.9A 2020-04-15 2020-04-15 Display screen driving board, display screen driving system and driving method Pending CN111369930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010294128.9A CN111369930A (en) 2020-04-15 2020-04-15 Display screen driving board, display screen driving system and driving method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010294128.9A CN111369930A (en) 2020-04-15 2020-04-15 Display screen driving board, display screen driving system and driving method

Publications (1)

Publication Number Publication Date
CN111369930A true CN111369930A (en) 2020-07-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023134290A1 (en) * 2022-01-17 2023-07-20 惠州视维新技术有限公司 Screen display driving method and apparatus, screen information configuration method and apparatus, medium and device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023134290A1 (en) * 2022-01-17 2023-07-20 惠州视维新技术有限公司 Screen display driving method and apparatus, screen information configuration method and apparatus, medium and device

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