Lighting line, printed circuit board and display module

Abstract

The present application relates to the technical field of display, especially to a lighting line, a printed circuit board and a display module, which are used for avoiding damage of the printed circuit board and the display module caused by reverse insertion of the lighting line. A product end of the lighting line has a first pin for connecting the printed circuit board; an equipment end has a second pin for connecting a lighting device; a first power line of a plurality of lines of wire includes a first sub-line and a second sub-line; a controller; the controller includes a third pin, a fourth pin and a fifth pin; two ends of the first sub-line are connected with the second pin and the fourth pin; two ends of the second sub-line are connected with the first pin and the fifth pin; one end of a switch line is connected with the third pin, and the other end is used for connecting the printed circuit board; the controller is configured to, under control of a switch signal, turn on the fourth pin and the fifth pin, and transmit a first power signal to the first pin through the second sub-line, the controller and the first sub-line. The lighting line, the printed circuit board and the display module are used for image display.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a lighting line, a printed circuit board, and a display module. Background Technology

[0002] During the manufacturing process of a display device, several inspection procedures are required. One crucial procedure is the light-on test, which checks for defects in the display module and ensures it can display correctly. The light-on test uses a light-on cable to connect the light igniter to the device under test. Summary of the Invention

[0003] This invention provides a lighting wire, a printed circuit board, and a display module to prevent damage to the printed circuit board and display module caused by the lighting wire being inserted backwards during lighting tests.

[0004] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0005] Some embodiments of the present invention provide a lighting cable, including: a product end, a device end, multiple traces, and a controller. The product end has a first pin. The product end is used to connect to a printed circuit board. The device end has a second pin. The device end is used to connect to a lighting device. The multiple traces include a first power line and a switch line. The first power line includes a first sub-line and a second sub-line. The controller includes a third pin, a fourth pin, and a fifth pin; one end of the first sub-line is connected to the second pin of the device end, and the other end of the first sub-line is connected to the fourth pin. One end of the second sub-line is connected to the first pin of the product end, and the other end of the second sub-line is connected to the fifth pin. The third pin is connected to one end of the switch line. The other end of the switch line is used to connect to a switch pin of the printed circuit board. The controller is configured to, under the control of a switch signal from the switch line, turn on the fourth and fifth pins, and transmit a first power signal from the second pin to the first pin through the second sub-line, the controller, and the first sub-line.

[0006] Some embodiments of the present invention provide a lighting cable, wherein the product end of the lighting cable has a first pin for connecting to a printed circuit board; the device end of the lighting cable has a second pin for connecting to a lighting device; the first power line of the multiple traces of the lighting cable includes a first sub-line and a second sub-line; the controller of the lighting cable includes a third pin, a fourth pin, and a fifth pin; both ends of the first sub-line are connected to the second pin and the fourth pin; both ends of the second sub-line are connected to the first pin and the fifth pin; one end of a switch line is connected to the third pin, and the other end is used to connect to the printed circuit board; the controller is configured to, under the control of a switch signal, turn on the fourth pin and the fifth pin, and transmit the first power signal through the second sub-line, the controller, and the first sub-line to the first pin. Thus, when the device end of the lighting cable is connected to the lighting device, and the product end is connected to the printed circuit board and the connection is correct (i.e., right-side-in), under the control of the switch signal, the first power signal of the lighting device can be transmitted to the printed circuit board through the second pin, the second sub-line, the controller, the first sub-line, and the first pin, thereby providing the printed circuit board with the correct signal, which in turn enables the display panel connected to the printed circuit board to display an image, thereby enabling lighting tests. When the product end of the lighting wire is rotated 180° on its plane and then connected to the printed circuit board (i.e., reverse insertion), the switching signal transmitted from the printed circuit board to the switch wire cannot make the fourth and fifth pins of the controller conduct, thus preventing the first power signal from being transmitted to the printed circuit board. Consequently, the display panel cannot display an image, thus providing an error connection prompt and preventing damage to the printed circuit board and display module caused by the lighting wire being reversed.

[0007] In some embodiments, the plurality of traces further includes: a first voltage line. The first voltage line is used to receive a first voltage signal from the lamp holder. The first power line receives a first power signal from the lamp holder. The voltage value of the first power signal is greater than the voltage value of the first voltage signal.

[0008] In some embodiments, the lighting wire further includes a resistor; the resistor is connected in series on the switch wire.

[0009] In some embodiments, the controller includes a relay or a control chip.

[0010] In some embodiments, the controller further includes a sixth pin, and the device further includes a seventh pin, which is electrically connected to the sixth pin and is used for grounding.

[0011] In some embodiments, the product terminal further includes timing pins and multiple functional pins. The multiple functional pins, the timing pins, and the first pin are arranged in a row along a first direction, which intersects the extension direction of the multiple traces.

[0012] In some embodiments, at least one functional pin is located on the side of the timing pin away from the first pin, and at least one functional pin is located on the side of the first pin away from the timing pin. The number of functional pins located on the side of the timing pin away from the first pin is the same as the number of functional pins located on the side of the first pin away from the timing pin.

[0013] In some embodiments, the product terminal further includes timing pins, a plurality of first functional pins, and a plurality of second functional pins. The plurality of first functional pins and the timing pins are arranged in a first row along a first direction, and the plurality of second functional pins and the first pins are arranged in a second row along the first direction; the number of first functional pins is the same as the number of second functional pins; the first direction intersects with the extension direction of the plurality of traces.

[0014] In some embodiments, at least one first functional pin is located on the side of the timing pin away from the first pin, and at least one second functional pin is located on the side of the first pin away from the timing pin. Along the row direction where the plurality of first functional pins or the plurality of second functional pins are located, the number of first functional pins located on the side of the timing pin away from the first pin is the same as the number of second functional pins located on the side of the first pin away from the timing pin.

[0015] Some embodiments of the present invention also provide a printed circuit board, including: a switch pin and a first voltage pin. The first voltage pin is electrically connected to the switch pin. The switch pin is used to connect a switch wire to a lighting circuit.

[0016] The beneficial effects that the printed circuit boards provided in some embodiments of the present invention can achieve are the same as those that the lighting wires provided in some embodiments described above can achieve, and will not be repeated here.

[0017] In some embodiments, the printed circuit board further includes timing pins and a plurality of first pins; the timing pins, the plurality of first functional pins, the switch pins, and the first voltage pins are arranged in a row along a first direction; the switch pins are adjacent to the first voltage pins; the first pins are used to connect to the first pins of the lamp wire.

[0018] In some embodiments, at least one first functional pin is located on the side of the timing pin away from the first pin, and at least one first functional pin is located on the side of the first pin away from the timing pin; the number of pins located on the side of the timing pin away from the voltage pin is the same as the number of pins located on the side of the first voltage pin away from the timing pin.

[0019] In some embodiments, the printed circuit board further includes timing pins, a plurality of second functional pins, and a plurality of third functional pins. The timing pins, the switching pins, and the plurality of second functional pins are arranged in a third row along a first direction; the switching pins are adjacent to the voltage pins. The voltage pins and the plurality of third functional pins are arranged in a fourth row along the first direction; the number of pins in the third row is the same as the number of pins in the fourth row.

[0020] In some embodiments, at least one second functional pin is located on the side of the timing pin away from the first pin, and at least one third functional pin is located on the side of the first pin away from the timing pin. Along the row direction of the plurality of second functional pins or the plurality of third functional pins, the number of pins located on the side of the timing pin away from the voltage pin is the same as the number of pins located on the side of the voltage pin away from the timing pin.

[0021] Some embodiments of the present invention also provide a display module, the display module comprising: a printed circuit board as described in the above embodiments.

[0022] Some embodiments of the present invention also provide a display module, the display module comprising: a lighting line as described in the above embodiments, and a printed circuit board as described in the above embodiments.

[0023] The beneficial effects that the display module provided in some embodiments of the present invention can achieve are the same as the beneficial effects that the lighting line provided in some embodiments above can achieve, and will not be repeated here. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of this invention, the accompanying drawings used in some embodiments of this invention will be briefly described below. Obviously, the drawings described below are merely drawings of some embodiments of this invention, and those skilled in the art can obtain other drawings based on these drawings. Furthermore, the drawings described below can be considered schematic diagrams and are not intended to limit the actual dimensions, etc., of the products involved in the embodiments of this invention.

[0025] Figure 1 This is a structural diagram of a display device according to some embodiments of the present invention;

[0026] Figure 2 This is a structural diagram of a display module in some embodiments of the present invention;

[0027] Figure 3 This is a structural diagram of a lighting wire in some embodiments of the present invention;

[0028] Figure 4This is a structural diagram of another type of lighting wire in some embodiments of the present invention;

[0029] Figure 5 This is a physical schematic diagram of a lighting wire in some embodiments of the present invention;

[0030] Figure 6 This is a structural diagram of a printed circuit board in some embodiments of the present invention;

[0031] Figure 7 This is a structural diagram of another printed circuit board in some embodiments of the present invention;

[0032] Figure 8 This is a structural diagram of another display module in some embodiments of the present invention. Detailed Implementation

[0033] The technical solutions in some embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided by the present invention are within the scope of protection of the present invention.

[0034] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of the invention. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0035] In describing some embodiments, the term "connection" and its derivative expressions may be used. For example, the term "connection" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0036] The use of “configured as” in this article implies an open and inclusive language that does not preclude devices from being configured to perform additional tasks or steps.

[0037] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0038] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on the other layer or substrate, or that there is an intermediate layer between the layer or element and the other layer or substrate.

[0039] In this document, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, unless otherwise stated, "a plurality of" means two or more.

[0040] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and the area of ​​regions are enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as being limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched areas shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the areas of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0041] like Figure 1 As shown, some embodiments of the present invention provide a display device 1000.

[0042] In some examples, the aforementioned display device 1000 can be any display device that displays either moving (e.g., video) or stationary (e.g., still images), and whether it is text or images. More specifically, the display device of the described embodiments is contemplated to be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal data assistants (PDAs), handheld or portable computers, GPS receivers / navigators, cameras, MP4 video players, camcorders, game consoles, watches, clocks, calculators, television monitors, flat panel displays, computer monitors, automotive displays (e.g., odometer displays, etc.), navigators, cockpit controllers and / or displays, displays of camera views (e.g., displays of rearview cameras in vehicles), electronic photographs, electronic billboards or signs, projectors, architectural structures, packaging and aesthetic structures (e.g., displays of images of a piece of jewelry), etc.

[0043] For example, the display device 1000 includes a frame, a driver chip, and other electronic components.

[0044] In some examples, such as Figure 1 As shown, the above-mentioned display device 1000 also includes a display module 100.

[0045] For example, the display module 100 is located within the frame and is electrically connected to the driver chip, and performs the display function under the signal provided by the driver chip.

[0046] In some examples, such as Figure 2 As shown, the display module 100 includes a printed circuit board (PCB) 10 and a display panel 20.

[0047] For example, the printed circuit board 10 can be bonded to the display panel 20 via a flexible printed circuit (FPC). The printed circuit board 10 is also electrically connected to a driver chip and receives drive signals from the driver chip.

[0048] For example, the display panel 20 can be a liquid crystal display (LCD) panel or an organic light-emitting diode (OLED) display panel.

[0049] In related technologies, after the display module or display device is assembled, a lamp-lighting test is required to check its display performance. During the lamp-lighting test, the device end of a lamp-lighting cable is connected to a lamp igniter, and the product end of the lamp-lighting cable is connected to the printed circuit board of the display module or display device under test. The lamp igniter sends a test signal, which is transmitted to the printed circuit board of the display module or display device under test to perform display performance testing.

[0050] Some embodiments of the present invention provide a lighting wire 30, such as Figure 3 As shown, the lighting line 30 includes a product end 40, an equipment end 50, multiple wirings 60, and a controller 70.

[0051] For example, product end 40 is used to connect to printed circuit board 10. For example, product end 40 includes multiple pins for transmitting signals on multiple traces 60 to printed circuit board 10. For example, the multiple pins of product end 40 include a first pin 41.

[0052] For example, device end 50 is used to connect to a lamp holder. For example, device end 50 includes multiple pins, which are connected to corresponding pins of product end 40. For example, the multiple pins of device end 50 include a second pin 51.

[0053] For example, the aforementioned multiple traces 60 include a first power line 61 and a switch line 62; the first power line 61 includes a first sub-line 611 and a second sub-line 612.

[0054] For example, the multiple traces 60 may also include multiple grounding traces, multiple second power supply traces, etc. It is understood that, to clearly illustrate the relationship between the controller 70, the switch line 62, and the first power supply line 61 in this invention, Figure 3 Other wiring routes are not shown in the diagram.

[0055] For example, multiple pins of device 50 are connected to multiple traces. Multiple pins of device 50 are connected to multiple pins of product 40 through corresponding traces 60, thereby transmitting multiple signals from the lamp holder to the printed circuit board 10 in sequence through multiple pins of device 50, multiple traces, and multiple pins of product 40.

[0056] For example, the printed circuit board 10 has multiple pins that correspond one-to-one with multiple pins on the product end 40 of the lamp line 30.

[0057] Understandably, when connecting or plugging the product end 40 of the lighting wire 30 to the printed circuit board 10, it is necessary to ensure the correspondence between multiple pins and multiple terminals after plugging.

[0058] In related technologies, during the actual operation of lamp-lighting testing, after the product end of the lamp-lighting cable rotates 180° along its plane, the relative positions of multiple pins on the product end change. When plugged into the printed circuit board, it can still be electrically connected to the printed circuit board. This is a case of reverse insertion. The correspondence between multiple pins on the printed circuit board and multiple pins on the product end of the lamp-lighting cable is incorrect. The signal from the lamp cannot be correctly transmitted to the corresponding pins on the printed circuit board, which will cause damage or burnout to the printed circuit board and the corresponding display module.

[0059] In some embodiments of the present invention, the lighting line 30 also includes a controller 70. The controller 70 includes a third pin 71, a fourth pin 72, and a fifth pin 73. One end of the first sub-line 611 is connected to the second pin 51 of the device end 50, and the other end of the first sub-line 611 is connected to the fourth pin 72. One end of the second sub-line 612 is connected to the first pin 41 of the product end 40, and the other end of the second sub-line 612 is connected to the fifth pin 73. The third pin 71 is connected to one end of the switch line 62; the other end of the switch line 62 is used to connect to the switch pin of the printed circuit board 10.

[0060] For example, the first power line 61 is connected to the first pin 41 and the second pin 51 to transmit the first power signal from the second pin 51 of the device 50 to the printed circuit board 10 via the controller 70 and the first pin 41.

[0061] For example, the controller 70 is configured to turn on the fourth pin 72 and the fifth pin 73 under the control of the switch signal from the switch line 62, and transmit the first power signal from the second pin 51 to the first pin 41 through the second sub-line 612, the controller 70 and the first sub-line 611.

[0062] For example, the switching signal on switch line 62 includes a valid signal and an invalid signal. When the switching signal is valid (e.g., the valid signal can be a small constant voltage signal), the fourth pin 72 and the fifth pin 73 are connected. When the switching signal is invalid (e.g., the valid signal can be a 0V voltage signal), the fourth pin 72 and the fifth pin 73 are disconnected, and signal transmission is not possible.

[0063] Some embodiments of the present invention provide a lighting line 30, which includes a controller 70. The third pin 71 of the controller 70 is connected to a switch line 62. Under the control of the switch signal on the switch line, the controller 70 transmits the first power signal from the second pin 51 of the device end 50 through the second sub-line 612 of the first power line 61, the fifth pin 73, the fourth pin 72 of the controller 70, and the first sub-line 611 to the first pin 41 of the product end 40. Thus, when the device end 50 of the lighting line 30 is connected to the lamp holder, and the product end 40 is connected to the printed circuit board 10 and the connection is correct (i.e., right-side-in), under the control of the switch signal, the first power signal of the lamp holder can be transmitted to the printed circuit board 10 through the second pin 51, the second sub-line 612, the controller 70, the first sub-line 611, and the first pin 41, thereby providing the printed circuit board 10 with the correct signal. This allows the display panel connected to the printed circuit board 10 to display the image normally, thus enabling lighting tests to be performed. When the product end 40 of the lighting wire 30 is rotated 180° and then connected to the printed circuit board 10 (i.e., reversed insertion), the switching signal transmitted from the printed circuit board 10 to the switch line cannot make the fourth pin 72 and the fifth pin 73 of the controller 70 conduct, thereby preventing the first power signal from being transmitted to the printed circuit board 10, which in turn prevents the display panel from displaying an image. This allows for an error connection warning and prevents damage to the printed circuit board 10 and the display module 100 caused by the lighting wire 30 being reversed when inserted into the printed circuit board 10.

[0064] In some embodiments, such as Figure 3As shown, the multiple traces 60 also include: a first voltage line 63; the first voltage line 63 is used to receive a first voltage signal from the lamp holder.

[0065] For example, the product end 40 also includes a first sub-voltage pin 46, and the device end 50 also includes a second sub-voltage pin 53. The two ends of the first voltage line 63 are connected to the first sub-voltage pin 46 and the second sub-voltage pin, respectively. The first voltage signal from the lamp is transmitted to the printed circuit board 10 in sequence via the second sub-voltage pin 53, the first voltage line 63, and the first sub-voltage pin 46.

[0066] For example, product side 40 also includes a switch pin 47, which is connected to switch line 62.

[0067] For example, the first power line 61 receives a first power signal from the lamp holder; the voltage value of the first power signal is greater than the voltage value of the first voltage signal.

[0068] For example, the voltage value of the first power supply signal can be 26V.

[0069] For example, the voltage value of the first voltage signal can be 3.3V, 5V, 12V, 15V or 24V.

[0070] With the above configuration, when the lamp line 30 is connected to the printed circuit board 10 in the correct orientation, the first voltage signal can be reused as a switching signal. For example, the first voltage signal can be transmitted to the switch line 62 via the printed circuit board 10, so that the first voltage signal can be used as an effective signal to turn on the fourth pin 72 and the fifth pin 73, so that the first power signal can be transmitted to the corresponding pins of the printed circuit board.

[0071] In some embodiments, such as Figure 3 As shown, the lighting wire 30 also includes a resistor 80. The resistor 80 is connected in series with the switch wire 62.

[0072] In some examples, resistor 80 can be a current-limiting resistor.

[0073] For example, the resistance value of resistor 80 can be in the range of 330Ω to 4100Ω. For instance, the resistance value of resistor 80 can be 330Ω, 640Ω, 1900Ω, 2500Ω or 4100Ω.

[0074] By adopting the above configuration, the resistor 80 can limit the current transmitted from the switch line 62 to the third pin 71 of the controller 70, thus avoiding damage to the controller 70 due to excessive current transmitted to the third pin 71.

[0075] In some embodiments, the controller 70 includes a relay or a control chip.

[0076] For example, the relay mentioned above can be an optocoupler relay.

[0077] For example, the control chip described above can be a small chip, which can reduce the size of the lighting wire 30.

[0078] In some examples, such as Figure 3 As shown, the controller 70 also includes a sixth pin 74, and the device end 50 also includes a seventh pin 52. The seventh pin 52 is electrically connected to the sixth pin 74 and is used for grounding.

[0079] It is understood that there are various ways to arrange the multiple pins of the product end 40 of the lighting line 30, which can be set according to actual needs, and the present invention does not limit this.

[0080] In some embodiments, such as Figure 3 As shown, the product side 40 also includes timing pin 42 and multiple function pins 43.

[0081] For example, multiple functional pins 43, timing pins 42, and first pins 41 are arranged in a row along a first direction X, and the first direction X intersects with the extension direction of multiple traces 60.

[0082] For example, all the pins of product side 40 are arranged in a row.

[0083] For example, the multiple functional pins 43 may include the aforementioned first sub-voltage pin 46 and switch pin 47. The multiple functional pins 43 may also include at least one second voltage pin, at least one ground pin, etc.

[0084] For example, multiple traces 60 extend roughly along the second direction Y.

[0085] For example, the angle between the first direction X and the second direction Y can be 80°, 85°, 90°, 95°, or 100°.

[0086] For example, the multiple pins of the product end 40 are arranged in a row. Among the multiple pins, the spacing between any two adjacent pins is the same. This makes the arrangement of the multiple pins of the product end 40 more orderly and also makes the connection between the lamp line 30 and the printed circuit board 10 more convenient.

[0087] For example, when the lamp line 30 is inserted into the printed circuit board 10, the timing signal emitted by the lamp is transmitted to the timing controller integrated circuit (TCon IC) via the device end 50, the corresponding trace 60, the timing pin 42, and the printed circuit board.

[0088] In some examples, at least one functional pin 43 is located on the side of the timing pin 42 away from the first pin 41, and at least one functional pin 43 is located on the side of the first pin 41 away from the timing pin 42.

[0089] For example, in product side 40, one or more functional pins 43 are provided on the side of timing pin 42 away from the first pin 41. In product side 40, one or more functional pins 43 are provided on the side of first pin 41 away from timing pin 42.

[0090] For example, the number of functional pins 43 located on the side of timing pin 42 away from the first pin 41 is the same as the number of functional pins 43 located on the side of the first pin 41 away from the timing pin 42.

[0091] For example, in Figure 3 In the middle, the two functional pins 43 are located on the side of the timing pin 42 away from the first pin 41, and the two functional pins 43 are located on the side of the first pin 41 away from the timing pin 42.

[0092] Understandably, when the lighting line 30 is inserted into the printed circuit board, the switch signal is used to connect the fourth pin 72 and the fifth pin 73, so that the first power signal is transmitted to the corresponding printed circuit board, the timing signal is transmitted to the printed circuit board from the timing pin 42, the first power signal is transmitted to the printed circuit board via the first pin 41, and other test signals are transmitted to the printed circuit board via multiple corresponding function pins 43, thereby realizing the lighting test of the display panel.

[0093] When the lighting line 30 is inserted in reverse to the printed circuit board, the switch line 62 does not receive the first voltage signal transmitted by the printed circuit board 10, making the switch signal on the switch line 62 an invalid signal. The fourth pin 72 and the fifth pin 73 are disconnected, blocking the transmission of the first power signal from the second pin 51 to the first pin 41. Furthermore, the number of functional pins 43 located on the side of the timing pin 42 away from the first pin 41 is the same as the number of functional pins 43 located on the side of the first pin 41 away from the timing pin 42. This ensures that when inserted in reverse, the first pin 41 is connected to the timing pin of the printed circuit board, thereby preventing the first power signal from transmitting the first pin 41 to the timing pin of the printed circuit board 10. This avoids the risk of the timing control chip burning out due to receiving the first power signal, which would prevent the display panel from lighting up or cause abnormalities, prompting the operator to adjust the insertion method of the lighting line 30.

[0094] In other embodiments, such as Figure 4 As shown, the product side 40 also includes timing pin 42, multiple first function pins 44, and multiple second function pins 45.

[0095] For example, multiple first functional pins 44 and timing pins 42 are arranged in a first row along a first direction X, and multiple second functional pins 45 and first pins 41 are arranged in a second row along the first direction X; the number of first functional pins 44 is the same as the number of second functional pins 45; the first direction X intersects with the extension direction of multiple traces 60.

[0096] For example, all pins on product side 40 are arranged in two rows.

[0097] For example, multiple first function pins 44 may include at least one second voltage pin, etc.

[0098] For example, multiple secondary function pins 45 may include at least one ground pin, etc.

[0099] For example, in the first row of pins, the spacing between adjacent pins is the same. In the second row of pins, the spacing between adjacent pins is also the same. This allows for a more orderly arrangement of the multiple pins on the product end 40 and makes the connection between the lamp line 30 and the printed circuit board 10 more convenient.

[0100] In some examples, along the row direction where the plurality of first functional pins 44 or the plurality of second functional pins 45 are located, at least one first functional pin 44 is located on the side of timing pin 42 away from first pin 41, and at least one second functional pin 45 is located on the side of first pin 41 away from timing pin 42.

[0101] For example, in product side 40, one or more functional pins 43 are provided on the side of timing pin 42 away from the first pin 41. In product side 40, one or more functional pins 43 are provided on the side of first pin 41 away from timing pin 42.

[0102] For example, along the row direction where the plurality of first functional pins 44 or the plurality of second functional pins 45 are located, the number of first functional pins 44 located on the side of timing pin 42 away from first pin 41 is the same as the number of second functional pins 45 located on the side of first pin 41 away from timing pin 42.

[0103] For example, such as Figure 4 As shown, along the row direction where the multiple first functional pins 44 or multiple second functional pins 45 are located, two first functional pins 44 are located on the side of the timing pin 42 away from the first pin 41, and two second functional pins 45 are located on the side of the first pin 41 away from the timing pin 42.

[0104] It is understandable that when the lamp line 30 is inserted into the printed circuit board, the switch signal is used to connect the fourth pin 72 and the fifth pin 73, so that the first power signal is transmitted to the corresponding printed circuit board 10, the timing signal is transmitted to the printed circuit board through the timing pin 42, and the first power signal is transmitted to the printed circuit board through the first pin 41, thereby realizing the lamp test of the display panel.

[0105] When the lamp line 30 is inserted in reverse to the printed circuit board, the switch line 62 does not receive the first voltage signal transmitted by the printed circuit board 10, making the switch signal on the switch line 62 an invalid signal. The fourth pin 72 and the fifth pin 73 are disconnected, blocking the transmission of the first power signal from the second pin 51 to the first pin 41. Furthermore, the number of functional pins 43 located on the side of the timing pin 42 away from the first pin 41 along the row direction where multiple first functional pins 44 or multiple second functional pins 45 are located is the same as the number of functional pins 43 located on the side of the first pin 41 away from the timing pin 42. This ensures that when inserted in reverse, the first pin 41 is connected to the timing pin of the printed circuit board, preventing the first power signal from being transmitted from the first pin 41 to the timing pin of the printed circuit board 10. This avoids the risk of the timing control chip burning out due to receiving the first power signal, which would prevent the display panel from lighting up or cause abnormalities, prompting the operator to adjust the insertion method of the lamp line 30.

[0106] For example, Figure 5 This is a schematic diagram of the actual lighting wire 30. Figure 5 Some traces are omitted in the diagram. The numbers 1 to 51 on the diagram represent the respective pins. Figure 5 The English markings on cable 60 are abbreviations for various cable types. For example, Figure 5 In the diagram, VDD represents the first voltage line, FB represents the second voltage line, MOS_ON represents the switching line, GND represents the ground line, VLED represents the first power supply line, and EDP_TXP0 represents the timing line, etc.

[0107] Some embodiments of the present invention also provide a printed circuit board 10, such as Figure 6 As shown, the printed circuit board 10 includes a switch pin 11 and a first voltage pin 12. The first voltage pin 12 is electrically connected to the switch pin 11. The switch pin 11 is used to connect the switch line 62 of the lamp line 30.

[0108] For example, the first voltage pin 12 and the switch pin 11 are electrically connected through a metal layer covering them. Figure 6 (Not shown in the image).

[0109] For example, switch pin 11 is used to connect switch wire 62 on the lighting wire 30.

[0110] For example, the printed circuit board 10 includes multiple pins for electrical connection, each corresponding to a pin of the product terminal 40 of the lamp line 30. These pins can transmit test signals from the lamp line 30 to the driver chip.

[0111] The printed circuit board 10 provided in the embodiments of the present invention includes a first voltage pin 12 and a switch pin 11 electrically connected. When the printed circuit board 10 is connected to the lamp line 30 in the above embodiment in a positive plug-in configuration, the first voltage signal generated by the lamp holder can be transmitted sequentially to the first voltage line 63, the first voltage pin 12 and the switch pin 11. The switch pin 11 is connected to the switch line 62 of the lamp line 30, making the first voltage signal an effective switch signal. This allows the fourth pin 72 and the fifth pin 73 of the controller 70 to be turned on. The first power signal of the lamp holder can be transmitted to the printed circuit board 10 via the second pin 51, the second sub-line 612, the controller 70, the first sub-line 611 and the first pin 41, thereby providing the correct signal to the printed circuit board 10. This allows the display panel connected to the printed circuit board 10 to display the image normally, thus enabling lamp testing. When the product end 40 of the lighting line 30 is rotated 180° and then connected to the printed circuit board 10 (i.e., reversed insertion), the switch line 62 of the lighting line 30 is not electrically connected to the corresponding switch pin 11 of the printed circuit board 10. As a result, the switch line 62 cannot obtain a valid switch signal, causing a disconnect between the fourth pin 72 and the fifth pin 73. Consequently, the first power signal cannot be transmitted to the corresponding pin on the printed circuit board 10 (i.e., the timing pin mentioned below), which in turn prevents the display panel from displaying an image. This allows for an error connection warning and prevents damage to the printed circuit board 10 and the display module 100 caused by the lighting line 30 being reversed when inserted into the printed circuit board 10.

[0112] It is understood that the printed circuit board 10 includes multiple pins, and there are various ways to arrange these pins, which can be selected according to the actual situation. This invention does not limit this arrangement.

[0113] In some embodiments, such as Figure 6 As shown, the printed circuit board 10 also includes timing pin 13, first pin 14, and multiple first functional pins 15.

[0114] For example, the plurality of first functional pins 15 may include at least one second voltage pin and at least one ground pin.

[0115] For example, timing pin 13, multiple first function pins 15, switch pin 11, first voltage pin 12, and first pin 14 are arranged in a row along the first direction X.

[0116] For example, the pins of the printed circuit board 10 are arranged in a row. The spacing between adjacent pins is the same. This makes the pin arrangement of the printed circuit board 10 more organized and facilitates the connection between the lamp line 30 and the printed circuit board 10.

[0117] For example, the switch pin 11 is adjacent to the first voltage pin 12. This facilitates the electrical connection between the switch pin 11 and the first voltage pin 12.

[0118] For example, the first pin 14 is used to connect to the first pin 41 of the lamp line 30, so that the first power signal transmitted by the first pin 41 can be received.

[0119] In some examples, at least one first functional pin 15 is located on the side of timing pin 13 away from first pin 14, and at least one first functional pin 15 is located on the side of first pin 14 away from timing pin 13.

[0120] For example, one or more first functional pins 15 are provided on the side of timing pin 13 away from the first pin 14. One or more first functional pins 15 are provided on the side of first pin 14 away from timing pin 13.

[0121] For example, the number of pins located on the side of timing pin 13 away from the first pin 14 is the same as the number of pins located on the side of the first pin 14 away from the timing pin 13.

[0122] For example, the first functional pin 15 also includes the first voltage pin 12 and the switch pin 11.

[0123] For example, two first functional pins 15 are located on the side of timing pin 13 away from first pin 14, and two first functional pins 15 are located on the side of first pin 14 away from timing pin 13.

[0124] It is understandable that when the printed circuit board 10 is correctly inserted with the aforementioned lamp line 30 (whose pins are arranged in a row on the product side), the switching signal transmitted from the lamp line 30 to the switch pin 11 and the switch line 62 will connect the fourth pin 72 and the fifth pin 73, so that the first power signal is transmitted to the corresponding first pin 14 on the printed circuit board 10, the timing signal is transmitted from the aforementioned timing pin 42 to the printed circuit board 10, the first power signal is transmitted to the printed circuit board 10 via the aforementioned first pin 41, and other test signals are transmitted to the printed circuit board 10 via multiple first function pins 15, thereby providing the correct signal to the printed circuit board 10, so that the display panel connected to the printed circuit board 10 can display the image normally, and thus the lamp test can be performed.

[0125] When the printed circuit board 10 and the aforementioned lamp line 30 (whose pins are arranged in a row) are reversed, the switch line 62 of the lamp line 30 is not electrically connected to the corresponding switch pin 11 of the printed circuit board 10. This prevents the switch line 62 from receiving a valid switch signal, causing a disconnect between the fourth pin 72 and the fifth pin 73, thus blocking the transmission of the first power signal from the second pin 51 to the first pin 41. Furthermore, the number of pins located on the side of the timing pin 13 away from the first pin 14 is the same as the number of pins located on the side of the first pin 14 away from the timing pin 13. This prevents the first power signal from being transmitted to the corresponding timing pin 13 on the printed circuit board, avoiding the risk of the timing control chip burning out due to receiving the first power signal. Consequently, the display panel may fail to light up or malfunction, prompting the operator to adjust the insertion method of the lamp line 30.

[0126] In other embodiments, such as Figure 7 As shown, the printed circuit board 10 also includes timing pin 13, first pin 14, multiple second functional pins 16 and multiple third functional pins 17.

[0127] For example, timing pin 13, switch pin 11, first voltage pin 12 and multiple second function pins 16 are arranged in a third row along the first direction X; switch pin 11 is adjacent to first voltage pin 12.

[0128] For example, the first pin 14 and a plurality of third functional pins 17 are arranged in a fourth row along the first direction X; the number of pins in the third row is the same as the number of pins in the fourth row.

[0129] For example, the multiple second functional pins 16 may include at least one second voltage pin, etc. The multiple third functional pins 17 may include at least one ground pin, etc.

[0130] For example, in the third row of pins, the spacing between two adjacent pins is the same. In the fourth row of pins, the spacing between two adjacent pins is also the same. This allows the pins of the printed circuit board 10 to be arranged more neatly, and also makes the connection between the lamp line 30 and the printed circuit board 10 more convenient.

[0131] For example, along the row direction where the plurality of second functional pins 16 or the plurality of third functional pins 17 are located, at least one second functional pin 16 is located on the side of timing pin 13 away from the first pin 14, and at least one third functional pin 17 is located on the side of first pin 14 away from the timing pin 13.

[0132] For example, in the printed circuit board 10, one or more second functional pins 16 are provided on the side of the timing pin 13 away from the first pin 14. In the printed circuit board 10, one or more third functional pins 17 are provided on the side of the first pin 14 away from the timing pin 13.

[0133] For example, along the row direction where the plurality of second functional pins 16 or the plurality of third functional pins 17 are located, the number of pins on the side of timing pin 13 away from the first pin 14 is the same as the number of pins on the side of first pin 14 away from the timing pin 13.

[0134] For example, along the row direction where multiple second function pins 16 or multiple third function pins 17 are located, five second function pins 16 are located on the side of timing pin 13 away from the first pin 14, and five third function pins 17 are located on the side of first pin 14 away from the timing pin 13.

[0135] It is understandable that when the printed circuit board 10 is correctly inserted with the aforementioned lamp line 30 (whose pin arrangement at the product end is two rows of lamp lines), the switching signal transmitted from the lamp line 30 to the switch pin 11 and the switch line 62 will connect the fourth pin 72 and the fifth pin 73, so that the first power signal is transmitted to the corresponding first pin 14 on the printed circuit board 10, the timing signal is transmitted from the aforementioned timing pin 42 to the printed circuit board 10, the first power signal is transmitted to the printed circuit board 10 via the aforementioned first pin 41, and other test signals are transmitted to the printed circuit board 10 via multiple first function pins 15, thereby providing the printed circuit board 10 with the correct signal, so that the display panel connected to the printed circuit board 10 can display the image normally, and thus the lamp test can be performed.

[0136] When the printed circuit board 10 and the aforementioned lamp line 30 (whose pin arrangement at the product end is a two-row lamp line) are reversed, the switch line 62 of the lamp line 30 is not electrically connected to the corresponding switch pin 11 of the printed circuit board 10. As a result, the switch line 62 cannot obtain a valid switch signal, causing the fourth pin 72 and the fifth pin 73 to disconnect, blocking the transmission of the first power signal from the second pin 51 to the first pin 41. Furthermore, the number of pins located on the side of the timing pin 13 away from the first pin 14 along the row direction of the multiple second functional pins 16 or multiple third functional pins 17 is the same as the number of pins located on the side of the first pin 14 away from the timing pin 13. This prevents the first power signal from being transmitted to the corresponding timing pin 13 on the printed circuit board 10, avoiding the risk of the timing control chip burning out due to receiving the first power signal. Consequently, the display panel cannot be lit or malfunctions, prompting the operator to adjust the insertion method of the lamp line 30.

[0137] In some embodiments, such as Figure 8 As shown, the display module 100 may also include the lighting line 30 described in any of the above embodiments.

[0138] When the display module 100 includes the lighting line 30, the device end 50 of the lighting line 30 can be electrically connected to the driver chip, and the product end 40 of the lighting line 30 is connected to the printed circuit board 10.

[0139] By adopting the above configuration, damage to the printed circuit board 10 and the display panel can be avoided during the assembly process of the display module 100 if the product end 40 of the lamp wire 30 is inserted into the printed circuit board 10 in reverse.

[0140] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A lighting wire, characterized in that, include: The product end has a first pin; the product end is used to connect to a printed circuit board. The device end has a second pin; the device end is used to connect to the lamp holder. Multiple wirings, including a first power line and a switch line; the first power line includes a first sub-line and a second sub-line; and, The controller includes a third pin, a fourth pin, and a fifth pin; one end of the first sub-line is connected to the second pin of the device, and the other end of the first sub-line is connected to the fourth pin; one end of the second sub-line is connected to the first pin of the product, and the other end of the second sub-line is connected to the fifth pin; the third pin is connected to one end of the switch line; the other end of the switch line is used to connect to the switch pin of the printed circuit board. The controller is configured to turn on the fourth and fifth pins under the control of the switch signal from the switch line, and to transmit the first power signal from the second pin to the first pin through the first sub-line, the controller and the second sub-line.

2. The lighting wire according to claim 1, characterized in that, The multiple wirings also include: a first voltage line; the first voltage line is used to receive a first voltage signal from the lamp holder; The first power line receives a first power signal from the lamp holder; the voltage value of the first power signal is greater than the voltage value of the first voltage signal.

3. The lighting wire according to claim 1, characterized in that, Also includes: Resistor; The resistor is connected in series on the switch line.

4. The lighting wire according to claim 1, characterized in that, The controller includes relays or control chips.

5. The lighting wire according to claim 1, characterized in that, The controller further includes a sixth pin, and the device further includes a seventh pin, which is electrically connected to the sixth pin and is used for grounding.

6. The lighting wire according to claim 1, characterized in that, The product terminal also includes timing pins and multiple functional pins; The plurality of functional pins, the timing pins, and the first pin are arranged in a row along a first direction, and the first direction intersects with the extension direction of the plurality of traces.

7. The lighting wire according to claim 6, characterized in that, At least one functional pin is located on the side of the timing pin away from the first pin, and at least one functional pin is located on the side of the first pin away from the timing pin; The number of functional pins located on the side of the timing pin furthest from the first pin is the same as the number of functional pins located on the side of the first pin furthest from the timing pin.

8. The lighting wire according to claim 1, characterized in that, The product terminal also includes timing pins, multiple first function pins, and multiple second function pins; The plurality of first functional pins and the timing pins are arranged in a first row along a first direction, and the plurality of second functional pins and the first pins are arranged in a second row along the first direction; the number of first functional pins is the same as the number of second functional pins; the first direction intersects with the extension direction of the plurality of traces.

9. The lighting wire according to claim 8, characterized in that, At least one first functional pin is located on the side of the timing pin away from the first pin, and at least one second functional pin is located on the side of the first pin away from the timing pin; Along the row direction where the plurality of first functional pins or the plurality of second functional pins are located, the number of first functional pins located on the side of the timing pin away from the first pin is the same as the number of second functional pins located on the side of the first pin away from the timing pin.

10. A printed circuit board, characterized in that, include: A switch pin and a first voltage pin; the first voltage pin is electrically connected to the switch pin; The first voltage pin and the switch pin are electrically connected through a metal layer covering them; wherein, the switch pin is used to connect the switch line of the lighting wire, and the first voltage pin is used to connect the first voltage line of the lighting wire.

11. The printed circuit board according to claim 10, characterized in that, It also includes timing pins, first pins, and multiple first functional pins; the timing pins, the multiple first functional pins, the switching pin, the first voltage pin, and the first pin are arranged in a row along a first direction; the switching pin is adjacent to the first voltage pin; The first pin is used to connect to the first pin of the lamp wire.

12. The printed circuit board according to claim 11, characterized in that, At least one first functional pin is located on the side of the timing pin away from the first pin; at least one first functional pin is located on the side of the first pin away from the timing pin. The number of pins located on the side of the timing pin away from the voltage pin is the same as the number of pins located on the side of the first voltage pin away from the timing pin.

13. The printed circuit board according to claim 10, characterized in that, It also includes timing pins, first pins, multiple second function pins, and multiple third function pins; The timing pins, the switching pins, and the plurality of second functional pins are arranged in a third row along the first direction; the switching pins are adjacent to the voltage pins; The first pin and the plurality of third functional pins are arranged in a fourth row along the first direction; the number of pins in the third row is the same as the number of pins in the fourth row.

14. The printed circuit board according to claim 13, characterized in that, At least one second functional pin is located on the side of the timing pin away from the first pin, and at least one third functional pin is located on the side of the first pin away from the timing pin; Along the row direction where the plurality of second functional pins or the plurality of third functional pins are located, the number of pins located on the side of the timing pin away from the first pin is the same as the number of pins located on the side of the first pin away from the timing pin.

15. A display module, characterized in that, include: The printed circuit board as described in any one of claims 10 to 14.

16. A display module, characterized in that, include: The lighting wire as described in any one of claims 1 to 9, and the printed circuit board as described in any one of claims 10 to 14.

Images