Signal generation assembly, image signal generator and image signal generation system

Abstract

The utility model provides a signal generation assembly, an image signal generator and an image signal generation system. The signal generation assembly comprises an output interface board, a core board, at least one power board and at least one adapter board. The at least one power supply board and the at least one adapter board are in one-to-one correspondence to form at least one detection board group used for being connected with a display screen to be detected, and the display screen to be detected is connected to the adapter board; the power panel comprises a power controller, and the power controller is used for controlling output voltage provided for the display screen to be tested; the core board is electrically connected with the output interface board and is used for sending a power supply control signal to the power supply controller and sending a picture cutting instruction to a display screen to be tested; wherein the power supply board, the adapter board and the output interface board are stacked, and the power supply board is electrically connected with the adapter board through the output interface board. According to the signal generation assembly, the internal structure of a product is more compact, the utilization rate of space is improved, the integration degree of the product is higher, and the market competitiveness of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display panel detection, and in particular to a signal generating component, an image signal generator and an image signal generating system. Background Art

[0002] A pattern generator (PG) is a signal generating device that generates different pattern test signals in response to various commands, enabling testing of display panels such as liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs). In today's era of abundant products and fierce competition, most PGs integrate multiple power supplies and signal formats, resulting in a large size that hinders integration and reduces costs. Utility Model Content

[0003] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a signal generating component is provided, and the technical solution is as follows.

[0004] A signal generating component includes an output interface board, a core board, at least one power supply board, and at least one adapter board; the at least one power supply board and the at least one adapter board correspond one-to-one to form at least one detection board group for connecting to a display screen to be tested, and the display screen to be tested is connected to the adapter board; the power supply board includes a power supply controller, which is used to control the output voltage provided to the display screen to be tested; the core board is electrically connected to the output interface board, and is used to send a power control signal to the power supply controller and send image cutting information to the display screen to be tested; wherein the power supply board, the adapter board and the output interface board are stacked, and the power supply board is electrically connected to the adapter board through the output interface board.

[0005] The signal generating assembly of the present invention can reduce space waste and improve space utilization due to the stacking structure of the output interface board, the power board and the adapter board, making the internal structure of the product more compact, enabling the product to have higher integration and smaller size, thereby improving the market competitiveness of the product.

[0006] Exemplarily, the power board is located on one side of the output interface board, the adapter board is located on the other side of the output interface board, the core board is placed on the side of the output interface board close to the power board along the stacking direction, and the projections of both the power board and the adapter board on the output interface board are arranged and distributed along the length direction of the output interface board.

[0007] Exemplarily, when there are two or more detection board groups, they are distributed in multiple rows and columns along the length direction and width direction of the output interface board.

[0008] Exemplarily, the power board also includes at least one power generating circuit for powering a display screen to be tested and at least one sampling circuit corresponding to the power generating circuit. The power controller controls the output voltage of the corresponding power generating circuit according to the acquisition signal of the sampling circuit.

[0009] Exemplarily, the power controller is an MCU controller.

[0010] According to another aspect of the present invention, an image signal generator is provided, comprising a housing and the above-mentioned signal generating assembly; the housing comprises a receiving cavity, and the signal generating assembly is at least partially fixedly disposed in the receiving cavity.

[0011] Exemplarily, the box body includes an upper shell and a lower shell, which are snap-fitted and installed to form a receiving cavity, wherein the upper shell and the lower shell are both sheet metal parts formed by bending sheet metal.

[0012] Exemplarily, at least one fan is fixedly installed in the accommodating cavity, the fan is placed between the signal generating assembly and the box body, and the ventilation direction of the fan is the length direction of the signal generating assembly.

[0013] Exemplarily, the power board, the core board and the output interface board are respectively located in the accommodating cavity, and the adapter board is detachably fixed on the upper surface of the upper shell.

[0014] According to another aspect of the present invention, an image signal generating system is provided, comprising an external control device and the above-mentioned image signal generator, wherein the external control device is communicatively connected to the core board.

[0015] The Summary of the Utility Model introduces a series of simplified concepts, which will be further described in detail in the Detailed Description of the Utility Model. This Summary of the Utility Model does not intend to limit the key features and essential technical features of the claimed technical solution, nor does it intend to determine the scope of protection of the claimed technical solution.

[0016] The advantages and features of the present invention are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0018] Figure 1 A perspective view of a signal generating assembly according to an exemplary embodiment of the present invention;

[0019] Figure 2 for Figure 1 A cross-sectional view of the signal generating assembly shown;

[0020] Figure 3 for Figure 1 The circuit principle block diagram of the signal generating component shown;

[0021] Figure 4 for Figure 3 The circuit principle block diagram of part A in the middle;

[0022] Figure 5 A perspective view of an image signal generator according to an exemplary embodiment of the present invention;

[0023] Figure 6 for Figure 5 MM cross-sectional view in;

[0024] Figure 7 for Figure 5 An exploded diagram of the image signal generator is shown.

[0025] The above drawings include the following reference numerals:

[0026] 100. Output interface board; 110. Output interface; 200. Core board; 300. Power board; 310. Power controller; 320. Power generation circuit; 330. Sampling circuit; 400. Adapter board; 500. Display screen to be tested; 600. Box; 610. Upper shell; 611. Second mounting hole; 612. Second connection hole; 613. Opening; 620. Lower shell; 621. First mounting hole; 622. Heat dissipation through hole; 623. Wiring port; 624. First connection hole; 630. Accommodating cavity; 700. Fan. DETAILED DESCRIPTION

[0027] In the following description, numerous details are provided to facilitate a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, and that the present invention may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well known in the art have not been described in detail.

[0028] To thoroughly understand the embodiments of the present invention, a detailed structure will be provided in the following description. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments.

[0029] The embodiment of the present invention provides a signal generating assembly. The signal generating assembly of the present invention is mainly used for testing display screens. The signal generating assembly according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] See also Figures 1 to 4 The signal generating assembly may include an output interface board 100, a core board 200, at least one power board 300, and at least one adapter board 400. The at least one power board 300 and the at least one adapter board 400 correspond one-to-one to form at least one test board group for connecting to the display screen 500 under test. The number of power boards 300 and the number of adapter boards 400 may be the same. The display screen 500 under test may be connected to the adapter board 400. The power board 300 may be configured to output voltage. The power board 300 may include a power controller 310. The power controller 310 may be configured to control the output voltage provided to the display screen 500 under test. The core board 200 may be electrically connected to the output interface board 100. The core board 200 may be configured to send power control signals to the power controller 310 and send image switching instructions to the display screen 500 under test. The power board 300, adapter board 400, and output interface board 100 may be stacked. The power board 300 can be electrically connected to the adapter board 400 through the output interface board 100. In this way, the core board 200 can control the power board 300 to output voltage to the output interface board 100, thereby controlling the output interface board 100 to output voltage to the display screen 500 to be tested, send a picture cutting instruction, etc. through the adapter board 400. Among them, the adapter board 400 can be used to summarize the output voltage, the picture cutting instruction, etc., and then the summarized output voltage, the picture cutting instruction, etc. are delivered to the connector of the display screen 500 to be tested. In the case where the display screen 500 to be tested itself has or can generate test image data, the signal generating component can send picture cutting information (including picture cutting instruction and / or test picture identification to be cut) to the display screen 500 to be tested so that the test image data of the display screen 500 to be tested forms the test image required for the test.

[0031] In the signal generating component of the present invention, due to the stacking structure of the output interface board 100, the power board 300 and the adapter board 400, space waste can be reduced, space utilization can be improved, the internal structure of the product can be more compact, the product can be more integrated and smaller in size, and the competitiveness of the product in the market can be improved.

[0032] Again, refer to Figures 1 to 3, the power board 300 can be located on one side of the output interface board 100. The adapter plate 400 can be located on the other side of the output interface board 100. The core board 200 can be placed on the side of the output interface board 100 near the power board 300 along the stacking direction. The projections of the power board 300 and the adapter plate 400 on the output interface board 100 can all be arranged and distributed along the length direction of the output interface board 100, that is, when there are multiple power boards 300, multiple power boards 300 can be arranged in parallel along the length direction of the output interface board 100 on the output interface board 100, because the number of the adapter plate 400 is consistent with that of the power supply, the adapter plate 400 can also be arranged in parallel along the length direction of the output interface board 100 on the output interface board 100. The power board 300, the adapter plate 400, the core board 200 and the output interface board 100 are stacked in this way, making the structure more compact, saving space, and facilitating the adapter plate 400 to be connected to the display screen 500 to be tested. The output interface board 100 may be a graphics card.

[0033] Furthermore, in actual applications, the signal generation component is also integrated with: a protocol conversion circuit (not shown) can be provided on one side of the output interface board 100 close to the adapter board 400, and the test image data output by the core board 200 can be converted into a data stream corresponding to the display screen 500 to be tested by the protocol conversion circuit. The number of protocol conversion circuits can be multiple. Each protocol conversion circuit can control the output of five data streams. In an embodiment of the present utility model, the number of protocol conversion circuits can be two. Two protocol conversion circuits can control the output of ten data streams. The protocol conversion circuit can be a field programmable gate array chip (Field Programmable Gate Array chip, abbreviated as FPGA chip) so that the data stream can be output efficiently. Therefore, when the test image data of the display screen 500 to be tested is not selected, the signal generation component can choose to send the test image data to the display screen 500 to be tested so that the display screen 500 to be tested can display the test image.

[0034] See Figure 1 When there are two or more detection board groups, they can be arranged in multiple rows and columns along the length and width of the output interface board 100. Figure 1 and Figure 3 When there are ten test board groups, they are arranged in two rows and five columns along the length and width of the output interface board 100. This makes the structure more compact and saves space. Furthermore, by providing multiple test board groups, a single signal generating assembly can simultaneously test multiple display screens 500 to be tested, thereby improving test efficiency and reducing costs.

[0035] See also Figure 3 and Figure 4The power board 300 may also include at least one power generation circuit 320 for supplying power to a display screen 500 under test, and at least one sampling circuit 330 corresponding to each power generation circuit 320. The number of sampling circuits 330 is the same as the number of power generation circuits 320. The power controller 310 can control the output voltage of the corresponding power generation circuit 320 based on the collected signals from the sampling circuits 330. By providing multiple power generation circuits 320, multiple power sources can be provided for display screens 500 under test that require different power sources (e.g., three or four power sources). This allows the signal generation component to detect display screens 500 under test that require different power sources, thereby reducing costs. Specifically, each power generation circuit 320 can be provided with a corresponding sampling circuit 330. The sampling circuit 330 can sample the output voltage of the corresponding power generation circuit 320 and feed it back to the power controller 310. The power controller 310 can then control the power generation circuit 320 to perform proportional-integral-differential (PID) regulation based on the collected signals, thereby ensuring the stability of the output voltage. Since the power board 300 has a power controller 310, a power generation circuit 320 and a sampling circuit 330, and the number of power paths is customized, each power board 300 can complete the power supply of a screen to be tested. Therefore, each independent power board 300 is more flexible, and therefore has a high development and utilization rate.

[0036] Further, see Figures 2 to 4 , at least one output interface 110 can be provided on the output interface board 100. The output interface 110 can correspond one to one with the detection board group. The output interface 110 can be provided on a side of the output interface board 100 close to the adapter board 400. The end of the output interface 110 away from the power board 300 is electrically connected to the adapter board 400. The end of the output interface 110 away from the adapter board 400 is electrically connected to the output end of the power generating circuit 320. In this way, when the display screen 500 to be tested itself has test image data, by setting the output interface 110, it is convenient for the power board 300 to output voltage to the adapter board 400 through the output interface board 100, and it is convenient for the core board 200 to send a cutting instruction to the adapter board 400 through the output interface board 100. When the display screen 500 to be tested does not have test image data, the output interface 110 is set to facilitate the power board 300 to output voltage to the adapter board 400 through the output interface board 100, and facilitate the core board 200 to transmit data to the adapter board 400 through the output interface board 100.

[0037] See Figure 4The power controller 310 may be an MCU controller. MCU controllers are less expensive than general controllers (e.g., complete computer systems) because they are designed for specific tasks and do not require redundant hardware, thus saving costs. MCU controllers are also smaller in size and are therefore suitable for use in compact signal generation components such as the present invention, saving space.

[0038] See also Figure 5 and Figure 6 According to another aspect of the present invention, an image signal generator is provided. The image signal generator may include a housing 600 and the aforementioned signal generating assembly. The housing 600 may include a receiving cavity 630. The signal generating assembly may be at least partially fixedly disposed within the receiving cavity 630. Since the aforementioned signal generating assembly has the aforementioned beneficial effects, an image signal generator including the aforementioned signal generating assembly also has the aforementioned beneficial effects, which will not be further elaborated herein.

[0039] See also Figure 6 and Figure 7 The box body 600 may include an upper shell 610 and a lower shell 620. The upper shell 610 and the lower shell 620 may be fastened and installed to form a receiving cavity 630. Both the upper shell 610 and the lower shell 620 may be sheet metal parts formed by bending sheet metal. Sheet metal can adapt to the design requirements of various complex shapes to meet the multiple bending of the upper shell 610 and the lower shell 620 when manufacturing the shape, and the size, shape, and holes of the sheet metal parts can be customized according to product requirements. Specifically, the upper shell 610 and the lower shell 620 can be manufactured by drilling holes, bending, spraying, etc. on the two sheet metal parts.

[0040] Again, refer to Figure 6 and Figure 7 At least one fan 700 can be fixedly installed in the accommodating cavity 630. The fan 700 can be placed between the signal generating assembly and the housing 600, and the ventilation direction of the fan 700 can be the longitudinal direction of the signal generating assembly. This effectively dissipates heat from the signal generating assembly to prevent damage due to overheating.

[0041] See also Figure 3 and Figure 6 The power board 300, core board 200, and output interface board 100 can be located separately within the accommodating cavity 630. The adapter board 400 is detachably secured to the upper surface of the upper housing 610. This makes the image signal generator structure more compact, saves space, and facilitates connection between the adapter board 400 and the display screen 500 to be tested. The output interface board 100 can be connected to the lower housing 620, and the power board 300 and core board 200 can be connected to the output interface board 100.

[0042] Specifically, refer to Figures 5 to 7 , the lower shell 620 can be provided with multiple first mounting holes 621 for mounting the output interface board 100, multiple heat dissipation through-holes 622 for heat dissipation, multiple wiring ports 623 for wiring, and multiple first connection holes 624 for connecting to the upper shell 610. Multiple first support columns are provided on the multiple first mounting holes 621 provided on the lower shell 620, and the output interface board 100 is then mounted through the multiple first support columns. The power board 300 and the core board 200 are mounted on the side of the output interface board 100 away from the adapter board 400 using fasteners such as screws or bolts through the multiple second support columns. This can improve the utilization of space, make the internal structure of the product more compact, facilitate production, improve production efficiency, and reduce manufacturing costs. Multiple wiring ports 623 are provided on the lower shell 620 to facilitate wiring of the signal generating component. The multiple heat dissipation through-holes 622 cooperate with the fan 700 to enhance heat dissipation efficiency. Multiple first connection holes 624 are provided on the lower shell 620 to cooperate with the upper shell 610 for connection. The upper shell 610 can be provided with a plurality of openings 613 corresponding to the size of the output interface 110, a plurality of second mounting holes 611 for mounting the adapter plate 400, and a plurality of second connection holes 612 for connecting to the lower shell 620. Through a plurality of openings 613 of different sizes, the output interface 110 is exposed to facilitate electrical connection with the adapter plate 400. A plurality of third support columns are passed through the plurality of second mounting holes 611 opened in the upper shell 610, and the adapter plate 400 is then mounted through the plurality of third support columns, so that the structure is compact and space utilization is improved. By providing a plurality of second connection holes 612 in the upper shell 610 to cooperate with the first connection holes 624, the firmness of the connection between the upper shell 610 and the lower shell 620 is enhanced by fasteners such as screws or bolts. Among them, the first support column and the second support column can be rivet columns. The third support column can be a hexagonal copper column.

[0043] Reinforcing ribs may be provided at the edges of the upper housing 610 and the lower housing 620 to enhance the structural strength of the upper housing 610 and the lower housing 620. A fan bracket (not shown) may be provided on the lower housing 620 to facilitate installation of the fan 700 and enhance the stability of the fan 700.

[0044] See also Figures 1 to 7, the process of the image signal generator detecting the display screen 500 to be tested is described in detail below. When the display screen 500 to be tested has test image data, the adapter board 400 is connected to the display screen 500 to be tested. The target voltage (for example, outputting several voltages) can be sent to the power controller 310 through the core board 200. The power controller 310 controls the power generation circuit 320 to output the corresponding voltage. The sampling circuit 330 samples the voltage output by the corresponding power generation circuit 320 and feeds it back to the power controller 310. The power controller 310 performs PID adjustment on the output voltage so that the power generation circuit 320 accurately outputs the voltage according to the target voltage. The voltage output by the power generation circuit 320 is transmitted to the adapter board 400 through the output interface 110. At the same time, the core board 200 sends a picture cutting instruction to the adapter board 400 through the output interface 110. The adapter board 400 summarizes the output voltage and the picture cutting instruction, and finally summarizes them to the connector of the display screen 500 to be tested.

[0045] In the case of not using the test image data of the display screen 500 to be tested, the adapter board 400 is connected to the display screen 500 to be tested, and the target voltage (for example, outputting several voltages) can be sent to the power controller 310 through the core board 200. The power controller 310 controls the power generating circuit 320 to output the corresponding voltage. The sampling circuit 330 samples the voltage output by the corresponding power generating circuit 320 and feeds it back to the power controller 310. The output voltage is PID-adjusted by the power controller 310 so that the power generating circuit 320 accurately outputs the voltage according to the target voltage. The voltage output by the power generating circuit 320 is transmitted to the adapter board 400 through the output interface 110. At the same time, the core board 200 sends the test image signal to the protocol conversion circuit. The protocol conversion circuit converts the test image signal into a data stream and sends it to the adapter board 400 through the output interface 110. The adapter board 400 summarizes the output voltage and data stream, and finally summarizes them to the connector of the display screen 500 to be tested.

[0046] According to another aspect of the present invention, an image signal generating system is provided. The image signal generating system may include an external control device and the above-mentioned image signal generator. The external control device and the core board 200 may be communicatively connected. The external control device may include a host computer (not shown) and a control box (not shown). Since the image signal generator as described above has the above-mentioned beneficial effects, the image signal generating system including the image signal generator as described above also has the above-mentioned beneficial effects, which will not be repeated here one by one.

[0047] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0048] For ease of description, area-relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that area-relative terms include not only the orientation of the components as described in the figures, but also different orientations in use or operation. For example, if the components in the drawings are inverted as a whole, the situation where the components are "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Thus, the exemplary term "above" may include both the orientations "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document is intended to include all of these situations.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0050] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in an order other than that illustrated or described herein.

[0051] The present invention has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Furthermore, those skilled in the art will appreciate that the present invention is not limited to the above embodiments and that various variations and modifications may be made based on the teachings of the present invention, all of which fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A signal generating component, characterized in that: It includes an output interface board, a core board, at least one power supply board, and at least one adapter board; At least one of the power supply boards and at least one of the adapter boards correspond to each other in a one-to-one manner to form at least one detection board group for connecting to a display screen to be tested, and the display screen to be tested is connected to the adapter board; The power board includes a power controller, and the power controller is used to control the output voltage provided to the display screen to be tested; The core board is electrically connected to the output interface board, and is used to send a power control signal to the power controller and send image cutting information to the display screen to be tested; The power board, the adapter board and the output interface board are stacked, and the power board is electrically connected to the adapter board through the output interface board.

2. The signal generating assembly according to claim 1, characterized in that: The power board is located on one side of the output interface board, the adapter board is located on the other side of the output interface board, the core board is placed on the side of the output interface board close to the power board along the stacking direction, and the projections of both the power board and the adapter board on the output interface board are arranged and distributed along the length direction of the output interface board.

3. The signal generating assembly according to claim 1, wherein: When there are two or more detection board groups, they are distributed in multiple rows and columns along the length direction and width direction of the output interface board.

4. The signal generating assembly according to claim 1, wherein: The power board also includes at least one power generation circuit for powering a display screen to be tested and at least one sampling circuit corresponding to the power generation circuit. The power controller controls the output voltage of the corresponding power generation circuit according to the acquisition signal of the sampling circuit.

5. The signal generating assembly according to claim 1, characterized in that: The power supply controller is an MCU controller.

6. An image signal generator, characterized in that: It comprises a housing and a signal generating assembly according to any one of claims 1 to 5; The box body includes a receiving cavity, and the signal generating component is at least partially fixedly disposed in the receiving cavity.

7. The image signal generator according to claim 6, characterized in that: The box body includes an upper shell and a lower shell, and the upper shell and the lower shell are buckled and installed to form the accommodating cavity, wherein the upper shell and the lower shell are both sheet metal parts formed by bending sheet metal.

8. The image signal generator according to claim 6, wherein: At least one fan is fixedly arranged in the accommodating cavity. The fan is placed between the signal generating component and the box body, and the ventilation direction of the fan is the length direction of the signal generating component.

9. The image signal generator according to claim 7, characterized in that: The power supply board, the core board and the output interface board are respectively located in the accommodating cavity, and the adapter board is detachably fixed on the upper surface of the upper shell.

10. An image signal generating system, characterized in that: It comprises an external control device and the image signal generator according to any one of claims 6 to 9, wherein the external control device is communicatively connected to the core board.

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