Adapter plate for lightening backlight module

Abstract

The utility model relates to the technical field of display screens, in particular to an adapter plate used for lightening a backlight module, which comprises a PCB (printed circuit board), a first adapter socket, a resistor module and a power socket used for being connected with a power supply are arranged on the PCB, the first adapter socket is provided with n pins, the resistor module comprises n-1 zero-ohm resistors which are connected in series, the pins of the first adapter socket are sequentially connected with the zero-ohm resistors at intervals, the head-end pin of the first adapter socket and the head-end zero-ohm resistor of the resistor module are connected with the positive electrode of the power socket, and the tail-end pin of the first adapter socket and the tail-end zero-ohm resistor of the resistor module are connected with the negative electrode of the power socket. The adapter plate can adapt to backlight interfaces of various pins, and after the lightening test of the backlight module is completed, the whole adapter plate can be used for the backlight interfaces of different pins again only by welding the disconnected zero-ohm resistor again or replacing the disconnected zero-ohm resistor with a new zero-ohm resistor, so that the cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, in particular to an adapter plate for lighting a backlight module. Background Art

[0002] The backlight interface of the display screen generally uses FPC, which is divided into several positive poles and several negative poles, and the positive poles are next to each other, and the negative poles are next to each other. The pitch of FPC generally uses 0.5mm, but the total number of pins generally does not exceed 20, and most backlight interfaces have 10 pins.

[0003] Since the backlight interfaces of current display screens are various and varied, the number of pins and the number of positive and negative poles of backlight interfaces of different models are different. If you want to light up the backlight, you need to develop a unique backlight adapter board for each display screen backlight. This wastes manpower and material resources, brings inconvenience to product development and production, and is costly. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an adapter plate for lighting a backlight module.

[0005] The utility model provides the following technical solution: an adapter board for lighting a backlight module, comprising a PCB board, wherein a first adapter socket, a resistor module and a power socket for connecting to a power source are arranged on the PCB board, wherein the first adapter socket has n pins, and the resistor module comprises n-1 zero-ohm resistors connected in series with each other, wherein the pins of the first adapter socket are sequentially connected to the zero-ohm resistors at intervals, wherein the pins at the first end of the first adapter socket and the zero-ohm resistor at the first end of the resistor module are connected to the positive pole of the power socket, and the pins at the end of the first adapter socket and the zero-ohm resistor at the end of the resistor module are connected to the negative pole of the power socket.

[0006] An adapter board for lighting a backlight module according to an embodiment of the utility model can adapt to backlight interfaces with different pin pins by setting a first adapter socket with n pin pins on a PCB board and then cooperating with a resistor module. It only needs to adjust the plugging position of the backlight interface and the socket, and then disconnect the corresponding zero-ohm resistor according to the plugging position and the positive and negative poles of the backlight interface to light up the backlight module. It has strong compatibility and can adapt to backlight interfaces with various pin pins. After the lighting test of the backlight module is completed, it only needs to re-solder the disconnected zero-ohm resistor or replace it with a new one, and the entire adapter board can be reused for backlight interfaces with different pin pins, thereby effectively reducing costs.

[0007] Furthermore, the first adapter socket has 20 pins, and the resistor module includes 19 zero-ohm resistors connected in series.

[0008] Furthermore, a second adapter socket is provided on the PCB board, and the second adapter socket has 10 pins, and the pins of the second adapter socket are sequentially connected to the zero-ohm resistor at intervals.

[0009] Furthermore, a protective cover for covering the resistor module is provided on the PCB board, and the protective cover is detachably connected to the PCB board.

[0010] Furthermore, the PCB board has a bottom ring arranged around the resistor module, the upper end of the bottom ring is provided with a slot adapted thereto, and the lower end of the protective cover is adapted to the slot.

[0011] Furthermore, symmetrical protrusions are provided on the side walls at both ends of the protective cover.

[0012] Furthermore, rubber pillars are provided at the four corners of the lower end of the PCB board.

[0013] Furthermore, positioning holes are provided at the four corners of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the top structure of the adapter plate used to light up the backlight module of the utility model;

[0016] Figure 2 It is a schematic diagram of the top structure of the adapter plate for lighting the backlight module of the utility model without the protective cover;

[0017] Figure 3 It is a schematic cross-sectional structure diagram of an adapter plate for lighting a backlight module of the utility model;

[0018] Figure 4 This is a schematic diagram of the principle of the first adapter socket in the adapter board for lighting the backlight module of the utility model;

[0019] Figure 5 This is a schematic diagram of the principle of the second adapter socket in the adapter board for lighting the backlight module of the utility model;

[0020] Figure 6 This is a schematic diagram of the principle of the power socket in the adapter board used to light up the backlight module of the utility model;

[0021] Figure 7 The utility model is a schematic diagram of the principle of the resistor module in the adapter board for lighting the backlight module.

[0022] Description of reference numerals:

[0023] 10. PCB board; 11. first adapter socket; 12. resistor module; 121. zero-ohm resistor; 13. power socket; 14. second adapter socket; 15. protective cover; 151. bump; 16. bottom ring; 161. slot; 17. rubber support; 18. positioning hole. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0028] Reference Figures 1 to 7 In one embodiment of the utility model, an adapter board for lighting a backlight module includes a PCB board 10, on which a first adapter socket 11, a resistor module 12 and a power socket 13 for connecting to a power source are provided. The first adapter socket 11 has n pin pins, and the resistor module 12 includes n-1 zero-ohm resistors 121 connected in series with each other. The pin pins of the first adapter socket 11 are sequentially connected to the zero-ohm resistors 121 of the resistor module 12 at intervals, the pin pin of the first end of the first adapter socket 11 and the zero-ohm resistor 121 at the first end of the resistor module 12 are connected to the positive pole of the power socket 13, and the pin pin at the end of the first adapter socket 11 and the zero-ohm resistor 121 at the end of the resistor module 12 are connected to the negative pole of the power socket 13.

[0029] An adapter board for lighting a backlight module according to an embodiment of the utility model can adapt to backlight interfaces with different pin pins by setting a first adapter socket 11 with n pin pins on a PCB board 10, and then cooperating with a resistor module 12. It only needs to adjust the plugging position of the backlight interface and the socket, and then disconnect the corresponding zero-ohm resistor 121 according to the plugging position and the positive and negative poles of the backlight interface, so that the backlight module can be lit. It has strong compatibility and can adapt to backlight interfaces with various pin pins. After the lighting test of the backlight module is completed, it only needs to re-solder the disconnected zero-ohm resistor 121 or replace it with a new zero-ohm resistor 121, and the entire adapter board can be reused for backlight interfaces with different pin pins, thereby effectively reducing costs.

[0030] The first adapter socket 11 has 20 pins, and the resistor module 12 includes 19 zero-ohm resistors 121 connected in series. The PCB board 10 is also provided with a second adapter socket 14, which has 10 pins. The pins of the second adapter socket 14 are sequentially connected to the zero-ohm resistors 121 of the resistor module 12 at intervals. The first adapter socket 11 has 20 pins, and the resistor module 12 includes 19 zero-ohm resistors 121, that is, n=20, which can meet the requirement that the total number of pins of the backlight interface does not exceed 20, and effectively improve the applicability of the adapter board. By setting up a second adapter socket 14, it can meet the situation that the existing backlight interface usually has 10 pin pins. It only needs to connect the backlight interface with 10 pin pins to the second adapter socket 14, which improves the efficiency of connecting the backlight interface with the socket on the adapter board, reduces the plugging frequency of the second adapter socket 14, and improves the service life; in this embodiment, if the number of pin pins of the backlight interface is greater than 10 and less than or equal to 20, it is connected to the first adapter socket 11; if the number of pin pins of the backlight interface is less than or equal to 10, it is connected to the second adapter socket 14.

[0031] Reference Figures 4 to 7As shown, the resistance module 12 is provided with 19 zero-ohm resistors 121 connected in series, namely R1, R2, R3, ..., R19. It is assumed that there is a connection point between adjacent zero-ohm resistors 121, plus two connection points of the head end R1 and the end R19, the resistance module 12 has a total of 20 connection points, the connection point of the head end R1 is recorded as D1, the connection point of the end R19 is recorded as D20, and the remaining connection points are recorded as D2, D3, D4, ..., D19 in the order of the zero-ohm resistors 121; wherein, the pin 1 of the first adapter socket 11 is connected to the connection point D1 of the resistance module 12, the pin 2 of the first adapter socket 11 is connected to the connection point D2 of the resistance module 12, the pin 3 of the first adapter socket 11 is connected to the connection point D3 of the resistance module 12, and so on. The pin 20 of the second adapter socket 11 is connected to the connection point D20 of the resistor module 12; wherein, the pin 1 of the second adapter socket 14 is connected to the connection point D10 of the resistor module 12, the pin 2 of the second adapter socket 14 is connected to the connection point D9 of the resistor module 12, the pin 3 of the second adapter socket 14 is connected to the connection point D8 of the resistor module 12, and so on, the pin 10 of the second adapter socket 14 is connected to the connection point D1 of the resistor module 12; the connection point D1 of the resistor module 12 is connected to the pin 2 and pin 3 of the power socket 13, the connection point D20 of the resistor module 12 is connected to the pin 1 of the power socket 13, the pin 2 and pin 3 of the power socket 13 correspond to the positive pole of the power supply, and the pin 1 of the power socket 13 corresponds to the negative pole of the power supply.

[0032] When the backlight interface has 20 pins, and pin 1, pin 2, and pin 3 of the backlight interface are all positive, and the negative poles are on other pins, the backlight interface is plugged into the first adapter socket 11, and pin 1 of the backlight interface corresponds to pin 1 of the first adapter socket 11. At this time, the backlight module can be lit by disconnecting the zero-ohm resistor R3.

[0033] When the backlight interface has 18 pins, and pin 1, pin 2, pin 3, pin 4, and pin 5 of the backlight interface are all positive, and the negative poles are on other pins, the backlight interface is plugged into the first adapter socket 11, and pin 1 of the backlight interface corresponds to pin 1 of the first adapter socket 11. At this time, the backlight module can be lit by disconnecting the zero-ohm resistor R5.

[0034] When the backlight interface has 10 pins, and pin 1, pin 2, pin 3, and pin 4 of the backlight interface are all positive, and the negative poles are on the other pins, the backlight interface is plugged into the second adapter socket 14, and pin 1 of the backlight interface corresponds to pin 10 of the second adapter socket 14. At this time, the backlight module can be lit by simply disconnecting the zero-ohm resistor R4.

[0035] When the backlight interface has 8 pins, and pin 1 and pin 2 of the backlight interface are both positive, and the negative pole is on the other pins, the backlight interface is plugged into the second adapter socket 14, and pin 1 of the backlight interface corresponds to pin 10 of the second adapter socket 14. At this time, the backlight module can be lit by simply disconnecting the zero-ohm resistor R2.

[0036] A protective cover 15 for covering the resistor module 12 is provided on the PCB board 10, and the protective cover 15 is detachably connected to the PCB board 10; a bottom ring 16 is provided on the PCB board 10 to surround the resistor module 12, and a slot 161 adapted thereto is provided at the upper end of the bottom ring 16, and the lower end of the protective cover 15 is adapted to the slot 161; symmetrical protrusions 151 are provided on the side walls at both ends of the protective cover 15; by providing the protective cover 15, the resistor module 12 can be protected to prevent the zero-ohm resistor 121 from dust accumulation or damage, and ensure that the adapter board works normally; the provision of the bottom ring 16 and the slot 161 facilitates the detachable connection between the protective cover 15 and the PCB board 10, and can also ensure the protective effect of the protective cover 15 on the resistor module 12; the protrusions 151 facilitate the staff to apply force, so that the protective cover 15 can be smoothly removed from the PCB board 10; in this embodiment, the protective cover 15 is opened only when the zero-ohm resistor 121 needs to be operated, including disconnection, connection and replacement of the zero-ohm resistor 121.

[0037] Rubber pillars 17 are provided at the four corners of the lower end of the PCB board 10; positioning holes 18 are provided at the four corners of the PCB board 10; the rubber pillars 17 can support the PCB board 10 to prevent the PCB board 10 from being damaged by friction on the workbench, and can also prevent static electricity; when the adapter board is in use, the adapter board can be fixed by bolts passing through the positioning holes 18 to prevent the adapter board from loosening and affecting the stability of the socket connection thereon.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adapter plate for lighting a backlight module, characterized in that: The invention comprises a PCB board, wherein a first adapter socket, a resistance module and a power socket connected to a power source are arranged on the PCB board, wherein the first adapter socket has n pins, the resistance module comprises n-1 zero-ohm resistors connected in series, the pins of the first adapter socket are sequentially connected to the zero-ohm resistors at intervals, the pins at the first end of the first adapter socket and the zero-ohm resistor at the first end of the resistance module are connected to the positive electrode of the power socket, and the pins at the end of the first adapter socket and the zero-ohm resistor at the end of the resistance module are connected to the negative electrode of the power socket.

2. The adapter plate for lighting the backlight module according to claim 1, characterized in that: The first adapter socket has 20 pins, and the resistor module includes 19 zero-ohm resistors connected in series.

3. The adapter plate for lighting the backlight module according to claim 2, characterized in that: The PCB board is also provided with a second adapter socket, which has 10 pins, and the pins of the second adapter socket are sequentially connected to the zero-ohm resistor at intervals.

4. The adapter plate for lighting a backlight module according to claim 1, characterized in that: The PCB board is provided with a protective cover for covering the resistor module, and the protective cover is detachably connected to the PCB board.

5. The adapter plate for lighting the backlight module according to claim 4, characterized in that: The PCB board has a bottom ring arranged around the resistor module, the upper end of the bottom ring is provided with a slot adapted thereto, and the lower end of the protective cover is adapted to the slot.

6. The adapter plate for lighting the backlight module according to claim 5, characterized in that: The side walls at both ends of the protective cover are provided with symmetrical protrusions.

7. The adapter plate for lighting a backlight module according to claim 1, characterized in that: Rubber pillars are arranged at the four corners of the lower end of the PCB board.

8. The adapter plate for lighting a backlight module according to claim 1, characterized in that: Positioning holes are arranged at the four corners of the PCB board.

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