CN217521738U - FPD-Link III signal generating device of display module - Google Patents
FPD-Link III signal generating device of display module Download PDFInfo
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- CN217521738U CN217521738U CN202221472037.0U CN202221472037U CN217521738U CN 217521738 U CN217521738 U CN 217521738U CN 202221472037 U CN202221472037 U CN 202221472037U CN 217521738 U CN217521738 U CN 217521738U
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Abstract
The utility model provides a FPD-Link III signal generator of display module assembly, including SD card, main control board and the interface conversion part of depositing the picture for test, the interface conversion part includes that RGB changes LVDS's conversion chip and LVDS change FPD-Link III's serializer, the output of SD card with the main control board is connected, the signal input part of main control board is connected with the RS-485 interface in order to receive the RS-485 instruction, the signal output part of main control board with the signal input part of RGB changes LVDS's conversion chip connects, the main control board pass through I2C interface bus with LVDS changes FPD-Link III's serializer and connects. The utility model has the advantages that: a signal generating device is provided, which can output FPD-Link III signals to a display module to assist manufacturers in completing optical performance tests after HUD assembly, and test operation is simplified.
Description
Technical Field
The utility model relates to a display module assembly especially relates to a display module assembly's FPD-Link III signal generation device.
Background
In the process of producing a display module with an HSD (FPD-Link III) high-speed data interface (such as a display screen, a central control ECU (electronic control Unit), a panoramic reverse image and the like of an automobile HUD), an optical performance test is required, and when a PC (personal computer) is used for driving the display module to display a specific image, due to the reasons of equipment wiring, mechanism action and the like, abnormity easily occurs, and the test operation is relatively troublesome.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a FPD-Link III signal generating device of a display module.
The utility model provides a FPD-Link III signal generating device of a display module, which comprises an SD card for storing pictures for testing, a main control board and an interface conversion part, the interface conversion part comprises a conversion chip for converting RGB into LVDS and a serializer for converting LVDS into FPD-Link III, the output end of the SD card is connected with the main control board, the signal input end of the main control board is connected with an RS-485 interface to receive an RS-485 instruction, the signal output end of the main control board is connected with the signal input end of the conversion chip for converting RGB into LVDS, the main control board is connected with the LVDS-to-FPD-Link III serializer through an I2C interface bus, the LVDS output end of the RGB to LVDS conversion chip is connected with the serializer converting LVDS to FPD-Link III, and the HSD output end of the LVDS-to-FPD-Link III serializer is connected with the display module.
As a further improvement of the present invention, the main control board outputs RGB888 signal through a signal output terminal to the conversion chip of RGB to LVDS, the main control board outputs HS, VS, DE, PCLK signal through another signal output terminal to the conversion chip of RGB to LVDS.
As a further improvement of the utility model, the conversion chip that RGB changes LVDS changes RGB888 signal and HS, VS, DE, PCLK signal into LVDS signal and exports LVDS changes FPD-Link III's serializer, LVDS changes FPD-Link III's serializer cooperation main control board conveys I2C control signal and changes LVDS signal into FPD-Link III signal and exports display module to the drive has HSD high-speed data interface's display module.
As a further improvement of the utility model, the model of the main control board is STM32H750XBH 6.
As a further improvement of the present invention, the model of the conversion chip for converting RGB into LVDS is SN75LVDS 83B.
As a further improvement of the utility model, the model of the LVDS-to-FPD-Link III serializer is DS90UB 927Q-Q1.
The utility model has the advantages that: through the scheme, the signal generating device is provided, an FPD-Link III signal can be output to the display module, so that a manufacturer is assisted to complete optical performance test after HUD assembly, and test operation is simplified.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other solutions can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of the FPD-Link III signal generating apparatus of the display module of the present invention.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be further described with reference to the following description and embodiments.
As shown in fig. 1, the FPD-Link III signal generating apparatus of a display module mainly comprises a main control board 101, an SD card 104, an interface conversion part, and a housing.
The main control board 101 takes an ARM as a core, is additionally provided with a power conversion module and a 485 conversion chip, and leads signals of RGB (red, green and blue) of I2C and 24bit, line-field synchronization and the like to an interface conversion part.
The SD card 104 is used to store the test pictures.
The interface conversion portion comprises a conversion chip 102 for converting the RGB of TI into LVDS and a serializer (also called as a serializer) 103 for converting the LVDS into the FPD-Link III.
First, the RGB to LVDS conversion chip 102 converts RGB888, HS, VS, DE, PCLK and other signals output from the main control board 101 into LVDS and outputs the LVDS to the serializer 103 of LVDS to FPD-Link III, the serializer 103 of LVDS to FPD-Link III (also called as add serializer) converts LVDS into FPD-Link III signals in cooperation with the I2C control signal transmitted from the main control board 101, outputs the FPD-Link III signals to the display module 105, and drives the display module 105 having HSD (FPD-Link III) high-speed data interface.
And reading and writing the internal register of the serializer chip by I2C through an RS-485 instruction, and flexibly configuring the chip parameters.
And initializing the display module to be tested through an RS-485 instruction.
The utility model provides a pair of FPD-Link III signal generator of display module assembly for the picture storage of detection is in SD card 104, sends out the instruction through RS-485, and main control board 101 analysis instruction information selects to read the test picture of storage in SD card 104 according to instruction information, generates RGB888 and the line and field synchronizing signal output signal conversion part, sends display module assembly 105 through signal conversion part conversion output FPD-Link III signal and shows.
The utility model provides a pair of FPD-Link III signal generator of display module assembly has following advantage:
1. the device can assist the manufacturer to accomplish HUD and assemble the back test, is convenient for discover and solve the problem in process of production, ensures the product quality of production.
2. The construction of the test system can be simplified, and the equipment manufacturing cost is saved for manufacturers.
3. The instruction is simple, the use is convenient, and the debugging time of the equipment can be shortened.
The utility model provides a pair of FPD-Link III signal generator of display module assembly, mainly used drive have HSD (FPD-Link III) high-speed data interface's display module assembly (for example car HUD's display screen, well accuse ECU, panorama image etc. of backing a car) display image to carry out product performance quality testing to the vision part product through camera or other modes.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model discloses to the ordinary skilled person in technical field's the prerequisite that does not deviate from the utility model discloses under the design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (6)
1. The utility model provides a FPD-Link III signal generating device of display module assembly which characterized in that: the interface conversion part comprises an RGB-to-LVDS conversion chip and an LVDS-to-FPD-Link III serializer, the output end of the SD card is connected with the main control board, the signal input end of the main control board is connected with an RS-485 interface to receive an RS-485 instruction, the signal output end of the main control board is connected with the signal input end of the RGB-to-LVDS conversion chip, the main control board is connected with the LVDS-to-FPD-Link III serializer through an I2C interface bus, the LVDS output end of the RGB-to-LVDS conversion chip is connected with the LVDS-to-FPD-Link III serializer, and the HSD output end of the LVDS-to-LVDS III serializer is connected with a display module.
2. The FPD-Link III signal generating apparatus of a display module of claim 1, wherein: the main control board outputs RGB888 signals to the conversion chip for converting RGB into LVDS through one signal output end, and the main control board outputs HS, VS, DE and PCLK signals to the conversion chip for converting RGB into LVDS through the other signal output end.
3. The FPD-Link III signal generating apparatus of a display module of claim 2, wherein: the RGB-to-LVDS conversion chip converts an RGB888 signal and HS, VS, DE and PCLK signals into LVDS signals and outputs the LVDS-to-FPD-Link III serializer, the LVDS-to-FPD-Link III serializer is matched with an I2C control signal transmitted by the main control board to convert the LVDS signals into FPD-Link III signals and output the FPD-Link III signals to the display module to drive the display module with the HSD high-speed data interface.
4. The FPD-Link III signal generating apparatus of a display module of claim 1, wherein: the model of the main control board is STM32H750XBH 6.
5. The FPD-Link III signal generating apparatus of a display module of claim 1, wherein: the model of the conversion chip for converting RGB into LVDS is SN75LVDS 83B.
6. The FPD-Link III signal generating apparatus of a display module of claim 1, wherein: the model of the LVDS-to-FPD-Link III serializer is DS90UB 927Q-Q1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221472037.0U CN217521738U (en) | 2022-06-13 | 2022-06-13 | FPD-Link III signal generating device of display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221472037.0U CN217521738U (en) | 2022-06-13 | 2022-06-13 | FPD-Link III signal generating device of display module |
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| Publication Number | Publication Date |
|---|---|
| CN217521738U true CN217521738U (en) | 2022-09-30 |
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| CN202221472037.0U Active CN217521738U (en) | 2022-06-13 | 2022-06-13 | FPD-Link III signal generating device of display module |
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| CN (1) | CN217521738U (en) |
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- 2022-06-13 CN CN202221472037.0U patent/CN217521738U/en active Active
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