Signal generation assembly and image signal generator

Abstract

The utility model provides a signal generation assembly and an image signal generator. The signal generation assembly comprises an output interface board, a core board, at least one sampling board and at least one power board. The core board is arranged on one side of the output interface board in the horizontal direction and is electrically connected with the output interface board; the at least one power supply board and the at least one sampling board are stacked in a one-to-one correspondence manner to form at least one power supply sampling board group, and the power supply board is electrically connected with the corresponding sampling board; the output interface board is arranged on the surface, away from the power board, of the sampling board in the stacking direction, and the sampling board and the power board are electrically connected with the output interface board. Therefore, the space waste can be reduced, the space utilization rate can be improved, the internal structure of the product can be more compact, the integration degree of the product can be higher, and the size of the product can be smaller; and the placement positions among the functional boards are more reasonable, so that the wiring assembly of the product is facilitated, the productivity of the product is further improved, the cost is reduced, 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, in particular to a signal generating component and an image signal generator. 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, the integration of multiple power supplies and signal formats results in a large size, hindering integration and cost savings, while also reducing product production capacity. 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] The signal generating component includes an output interface board, a core board, at least one sampling board and at least one power board; the core board is arranged on one side of the output interface board in the horizontal direction and is electrically connected to the output interface board; at least one power board and at least one sampling board are stacked in a one-to-one correspondence to form at least one group of power sampling board groups, and the power board is electrically connected to the corresponding sampling board; the output interface board is arranged on the side of the sampling board away from the power board along the stacking direction, and the sampling board and the power board are both electrically connected to 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 arrangement of the sampling board, the power supply board and the output interface board, making the internal structure of the product more compact, enabling the product to have higher integration and smaller size; the placement of various functional boards is more reasonable, so as to facilitate product wiring and assembly, further improve product production capacity, reduce costs, and enhance product market competitiveness.

[0006] Exemplarily, the signal generating component further includes a constant current source interface board for externally connecting to the display screen to be tested and providing a constant current power supply to the display screen to be tested, and the constant current source interface board is electrically connected to the core board.

[0007] Exemplarily, the constant current source interface board and the core board are both placed on the same side of the output interface board in the horizontal direction, and the constant current source interface board and the core board are arranged along the length direction of the output interface board.

[0008] Illustratively, the output interface board includes a third interface, the third interface is used to externally connect to the display screen to be tested, and the third interface is internally connected to a power supply board for providing a constant voltage power supply to the display screen to be tested.

[0009] Exemplarily, each power board includes two power circuits, and each sampling board is provided with two sampling circuits. The two sampling circuits on the sampling board are coupled to the two power circuits on the corresponding power board in a one-to-one correspondence.

[0010] Exemplarily, when there are two or more power sampling board groups, the two or more power sampling board groups are arranged along the length direction of the output interface board.

[0011] Exemplarily, a fan is provided on one side or both sides of each power sampling board group.

[0012] Exemplarily, the output interface board also includes a second interface and a sub-control board corresponding to each group of power sampling board groups. The core board is connected to each sub-control board, and the sub-control board is connected to the sampling board of the corresponding power sampling board group; the second interface is used to externally connect to the display screen to be tested; the second interface is internally connected to the power board and the sub-control board, and the second interface is used to provide constant voltage power supply and image information for the display screen to be tested.

[0013] According to another aspect of the present invention, an image signal generator is provided, comprising an upper housing, a lower housing, and the signal generating assembly as described above; the upper housing and the lower housing are detachably fastened together to form an accommodating cavity, and the signal generating assembly is fixedly disposed in the accommodating cavity.

[0014] Exemplarily, both the upper housing and the lower housing are sheet metal parts formed by bending sheet metal.

[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 MM cross-sectional view shown;

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

[0021] Figure 4 A partial exploded view of an image signal generator according to an exemplary embodiment of the present invention;

[0022] Figure 5 for Figure 4 A cross-sectional view of the image signal generator shown.

[0023] The above drawings include the following reference numerals:

[0024] 100, output interface board; 110, second interface; 120, third interface; 130, sub-control board; 200, sampling board; 300, power board; 400, core board; 500, constant current source interface board; 510, first interface; 600, fan; 710, upper housing; 711, opening; 712, second connection hole; 720, lower housing; 721, mounting hole; 722, heat dissipation through hole; 723, wiring port; 724, first connection hole. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] See also Figure 1 and Figure 2, the signal generating component may include an output interface board 100, a core board 400, at least one sampling board 200 and at least one power board 300. Among them, the output interface board 100 can be used to connect to the display screen to be tested, and output a constant voltage power supply and image information to the display screen to be tested through the output interface board 100. The core board 400 can be used to control the output interface board 100 to output a constant voltage power supply and image information. The power board 300 can be used to output a constant voltage power supply. The sampling board 200 can be used to sample the constant voltage power supply so as to perform overcurrent protection and PID adjustment on the power board 300 based on the sampling data. The core board 400 can be arranged on one side of the output interface board 100 in the horizontal direction and electrically connected to the output interface board 100. At least one power board 300 can be stacked in a one-to-one correspondence with at least one sampling board 200 to form at least one group of power sampling board groups ( Figure 3 In the illustrated embodiment, there are three power sampling board groups, and the power boards 300 are electrically connected to the corresponding sampling boards 200. The output interface board 100 can be disposed on a side of the sampling boards 200 facing away from the power boards 300 along the stacking direction, and both the sampling boards 200 and the power boards 300 are electrically connected to the output interface board 100.

[0029] The signal generating assembly of the present invention can reduce space waste and improve space utilization due to the stacking arrangement of the sampling board 200, the power board 300 and the output interface board 100, making the internal structure of the product more compact, enabling the product to have higher integration and smaller size; the placement of various functional boards is more reasonable, so as to facilitate product wiring and assembly, further improve product production capacity, reduce costs, and enhance product market competitiveness.

[0030] Preferably, the power supply board 300 , the sampling board 200 and the output interface board 100 can be arranged sequentially to facilitate the transmission of constant voltage power supply and image information.

[0031] See Figure 1 and Figure 3 , the signal generating component may also include a constant current source interface board 500 for externally connecting to the display screen to be tested and providing a constant current power supply to the display screen to be tested. The constant current source interface board 500 can be electrically connected to the core board 400, and the core board 400 can control the constant current source interface board 500 to output a constant current power supply. By setting the constant current source interface board 500, the stable output of the constant current power supply to the display screen to be tested is ensured, thereby reducing energy waste. A first interface 510 may be provided on the constant current source interface board 500. The constant current source interface board 500 can output a constant current power supply to the display screen to be tested through the first interface 510. Specifically, the number of the first interface 510 can be multiple, such as Figure 1As shown, the number of the first interfaces 510 is six, so that the constant current source interface board 500 can more efficiently provide a constant current power supply for the display screen to be tested. It should be understood that the number of the first interfaces 510 is not limited to six, and can also be four, eight, etc., as long as it can efficiently provide a constant current power supply for the display screen to be tested.

[0032] See Figure 1 The constant current source interface board 500 and the core board 400 can both be placed on the same side of the output interface board 100 in the horizontal direction, and the constant current source interface board 500 and the core board 400 can be arranged along the length direction of the output interface board 100. In this way, the connection between the constant current source interface board 500 and the core board 400 is convenient, thereby effectively controlling the constant current source interface board 500 to output constant current power, and conveniently connecting the output interface board 100 and the core board 400, thereby effectively controlling the output interface board 100 to output constant voltage power and image information.

[0033] See Figures 1 to 3 The output interface board 100 may include a third interface 120. The third interface 120 can be used to externally connect to the display screen under test. The third interface 120 can be internally connected to the power board 300, that is, the third interface 120 can be indirectly connected to the power board 300 through the sampling board 200. The third interface 120 can be used to provide a constant voltage power supply for the display screen under test. This makes the internal structure of the product more compact and enables higher product integration. Specifically, the third interface 120 can have nine constant voltage power supplies for the display screen under test to select.

[0034] Furthermore, the number of the third interface 120 may also be multiple, such as Figure 1 As shown, there are six third interfaces 120, so that the output interface board 100 can more efficiently provide constant voltage power to multiple display screens to be tested. The third interfaces 120 can be horn interfaces to maintain connection stability and reliability.

[0035] In one embodiment of the present invention, each power board 300 can include two power circuits. Each sampling board 200 can be provided with two sampling circuits. The two sampling circuits on the sampling board 200 can be coupled to the corresponding two power circuits on the power board 300 in a one-to-one correspondence. This reduces the loss of the constant voltage power supply from the sampling board 200 to the power board 300.

[0036] See Figure 1 and Figure 3 In one embodiment of the present invention, when there are two or more power sampling board groups, the two or more power sampling board groups can be arranged along the length of the output interface board 100. This can reduce space waste, improve space utilization, make the internal structure of the product more compact, and enable a higher degree of product integration.

[0037] See Figure 2 , a fan 600 can be provided on one or both sides of each power sampling board group. The fan 600 can effectively remove the heat generated by each power sampling board group, prevent overheating, and thus protect each power sampling board group from damage. Figure 4 , fans 600 may be provided on one side or both sides of the core board 400 and the constant current source interface board 500. The core board 400 and the constant current source interface board 500 are effectively cooled to avoid damage due to overheating.

[0038] See Figure 3 The output interface board 100 may also include a second interface 110 and a sub-control board 130 corresponding to each power sampling board group. The core board 400 may be connected to each sub-control board 130. The sub-control board 130 may be connected to the sampling board 200 of the corresponding power sampling board group; and the sampling board 200 is connected to the power board 300. Therefore, the sub-control board 130 can control the power output by the power board 300 and adjust the output power based on the data sampled by the sampling board 200. The second interface 110 can be used to externally connect to the display screen to be tested. The second interface 110 can be internally connected to the power board 300 and the sub-control board 130. It should be noted that the second interface 110 can be indirectly connected to the power board 300 via the sampling board 200. The second interface 110 can be used to provide a constant voltage power supply and image information to the display screen to be tested. The test image data output by the core board 400 can be converted into a data stream corresponding to the display screen to be tested by the sub-control board 130 and output to the display screen to be tested via the second interface 110. The sub-control board 130 outputs an image data stream to the display screen under test, and the power sampling board group supplies power to the display screen under test, thereby ensuring that the signal generation component can test the display screen under test. Specifically, the second interface 110 can provide 1-3 constant voltage power supplies for the display screen under test.

[0039] Furthermore, the number of the second interfaces 110 can be multiple, such as Figure 1 As shown, the number of the second interfaces 110 is twelve, so that the output interface board 100 can more efficiently provide constant voltage power and image information to multiple display screens to be tested.

[0040] The sub-control board 130 can be a field programmable gate array chip (FPGA chip). The sub-control board 130 samples the constant voltage power supply of the power supply board 300 through the sampling board 200 and performs proportional integration differential adjustment (PID adjustment) according to the target voltage sent by the core board 400, thereby ensuring the stability of the constant voltage power supply output. Multiple sub-control boards 130 can be provided. Through multiple sub-control boards 130, the corresponding constant voltage power supply output through the second interface 110 and the constant voltage power supply output through the third interface 120 can be efficiently PID-regulated.

[0041] Furthermore, by providing the second interface 110 and the third interface 120 on the output interface board 100, the constant voltage power supply and image information required for detecting the display screen to be tested can be output on one output interface board 100 without the need for additional components, thereby reducing costs.

[0042] According to another aspect of the present invention, an image signal generator is provided. Figure 4 The image signal generator may include an upper housing 710, a lower housing 720, and the signal generating assembly described above. The upper housing 710 and the lower housing 720 can be removably fastened together to form a receiving cavity. The signal generating assembly can be fixedly disposed within the receiving cavity. Since the signal generating assembly described above has the aforementioned beneficial effects, an image signal generator including the signal generating assembly also has the aforementioned beneficial effects, which will not be further elaborated here.

[0043] See Figure 4 Both the upper housing 710 and the lower housing 720 can be formed by bending sheet metal. Sheet metal can adapt to various complex design requirements, meeting the multiple bends required during the manufacturing of the upper housing 710 and the lower housing 720. The size, shape, and holes of the sheet metal can also be customized according to product requirements.

[0044] Specifically, refer to Figure 1 and Figure 4The lower housing 720 can have multiple mounting holes 721 for mounting the signal generating assembly, multiple heat dissipation holes 722 for heat dissipation, multiple wiring ports 723 for wiring, and multiple first connection holes 724 for connecting to the upper housing 710. Multiple rivet studs and support columns are inserted through the multiple mounting holes 721 in the lower housing 720, and the signal generating assembly is then mounted using these rivet studs and support columns to enhance the stability of the signal generating assembly. Multiple wiring ports 723 are provided on the lower housing 720 to facilitate wiring of the signal generating assembly. The multiple heat dissipation holes 722 cooperate with the fan 600 to enhance heat dissipation efficiency. Multiple first connection holes 724 are provided on the lower housing 720 to enhance the secure connection between the upper and lower housings 710 and 720. The upper housing 710 can have multiple openings 711 corresponding to the sizes of the first interface 510, the second interface 110, and the third interface 120, as well as multiple second connection holes 712 for connecting to the lower housing 720. The first interface 510, the second interface 110 and the third interface 120 are exposed through multiple openings 711 of different sizes for connection with the display screen to be tested. The upper housing 710 is provided with multiple second connection holes 712 to enhance the connection between the upper housing 710 and the lower housing 720.

[0045] Reinforcement ribs may be provided at the edges of the upper housing 710 and the lower housing 720 to enhance the structural strength of the upper housing 710 and the lower housing 720. A fan bracket is provided on the lower housing 720 to facilitate installation of the fan 600 and enhance the stability of the fan 600.

[0046] Further, refer to Figure 4 and Figure 5 The output interface board 100 is mounted on the support column, the sampling board 200 is mounted on a portion of the rivet column below the output interface board 100, and the power board 300 is connected to the side of the sampling board 200 away from the output interface board 100. The two are connected by fasteners such as screws or bolts to form a power sampling board group. The constant current source interface board 500 and the core board 400 are also mounted on different portions of the rivet column, and are at a certain distance from the surface of the lower housing 720 facing the accommodating cavity, so that the height of the external output interface is consistent. In this way, the utilization rate of the space can be improved, the internal structure of the product can be made more compact, production is convenient, production efficiency is improved, and manufacturing costs are reduced.

[0047] The following specifically describes the process of the image signal generator detecting the display screen to be tested. The first interface 510, the second interface 110 and the third interface 120 are respectively connected to the display screen to be tested, and the target current and target voltage are sent through the core board 400. The sampling board 200 samples the voltage signal transmitted by the power board 300, and the sub-control board 130 controls the voltage signal output by the power board 300 according to the sampled voltage signal to achieve consistency with the target voltage, and outputs it to the display screen to be tested through the second interface 110 and the third interface 120 respectively to power its circuit board; at the same time, the constant current power output by the constant current source interface board 500 reaches consistency with the target current to be output to the display screen to be tested through the first interface 510 to provide backlight power supply; and the test image data output by the core board 400 can be converted into a data stream corresponding to the display screen to be tested by the sub-control board 130, and output to the display screen to be tested through the second interface 110. Finally, the display screen to be tested is observed, thereby completing the detection of the display screen to be tested.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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 sampling board and at least one power supply board; The core board is arranged on one side of the output interface board in the horizontal direction and is electrically connected to the output interface board; At least one of the power supply boards and at least one of the sampling boards are stacked in a one-to-one correspondence to form at least one power sampling board group, and the power supply boards are electrically connected to the corresponding sampling boards; The output interface board is arranged on a side of the sampling board away from the power board along the stacking direction, and the sampling board and the power board are both electrically connected to the output interface board.

2. The signal generating assembly according to claim 1, characterized in that: It also includes a constant current source interface board for externally connecting to the display screen to be tested and providing a constant current power supply for the display screen to be tested, and the constant current source interface board is electrically connected to the core board.

3. The signal generating assembly according to claim 2, characterized in that: The constant current source interface board and the core board are placed on the same side of the output interface board in the horizontal direction, and the constant current source interface board and the core board are arranged along the length direction of the output interface board.

4. The signal generating assembly according to claim 2, characterized in that: The output interface board includes a third interface, and the third interface is used to be externally connected to the display screen to be tested. The third interface is internally connected to the power supply board to provide a constant voltage power supply for the display screen to be tested.

5. The signal generating assembly according to claim 1, characterized in that: Each of the power supply boards includes two power supply circuits, and each of the sampling boards is provided with two sampling circuits. The two sampling circuits on the sampling board are coupled and connected with the two power supply circuits on the corresponding power supply board in a one-to-one correspondence.

6. The signal generating assembly according to claim 1, characterized in that: When there are two or more power sampling board groups, the two or more power sampling board groups are arranged along the length direction of the output interface board.

7. The signal generating assembly according to claim 1, characterized in that: A fan is provided on one side or both sides of each group of power sampling board groups.

8. The signal generating assembly according to claim 1, characterized in that: The output interface board also includes a second interface and a sub-control board corresponding to each group of the power sampling board groups. The core board is connected to each sub-control board, and the sub-control board is connected to the sampling board of the corresponding power sampling board group; the second interface is used to externally connect the display screen to be tested; the second interface is internally connected to the power board and the sub-control board, and the second interface is used to provide constant voltage power and image information for the display screen to be tested.

9. An image signal generator, characterized in that: comprising an upper housing, a lower housing, and a signal generating assembly according to any one of claims 1 to 8; The upper housing and the lower housing are detachably fastened to form an accommodating cavity, and the signal generating component is fixedly arranged in the accommodating cavity.

10. The image signal generator according to claim 9, characterized in that: The upper housing and the lower housing are both sheet metal parts formed by bending sheet metal.

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