Circuit board and display

Abstract

The utility model relates to the technical field of display, and provides a circuit board and a display. The circuit board comprises a board body. The board body is provided with a main control area and a dimming control area. And the main control area is electrically connected with the dimming control area. The dimming control area is configured to be electrically connected with the backlight plate. Therefore, the main control function and the dimming control function can be integrated on one circuit board, so that the use of cables and fasteners is reduced, the production cost of the display is reduced, and the production efficiency of the display is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a circuit board and a display. BACKGROUND

[0002] In the related art, the main control circuit board and the partition light adjusting circuit board in the display are usually connected by cables (including data lines and power supply lines), which results in complex wiring and high cost due to large amount of cables. Meanwhile, the main control circuit board and the partition light adjusting circuit board need to be fixed to the display by fasteners, which results in more punching and large amount of fasteners, and makes the circuit board assembly process more complex. CONTENT OF THE UTILITY MODEL

[0003] The circuit board and the display provided by the embodiments of the present application can integrate the main control function and the light adjusting control function on one circuit board, so as to reduce the use of cables and fasteners, and at least partially solve the above technical problems.

[0004] In order to achieve the above purpose, according to a first aspect of the present application, a circuit board applied to a display is provided, the display comprising a backlight plate, and the circuit board comprising:

[0005] a board body having a main control area and a light adjusting control area, the main control area being electrically connected with the light adjusting control area, and the light adjusting control area being configured to be electrically connected with the backlight plate.

[0006] Optionally, a plug-in piece is configured on the board body, the plug-in piece being located in the light adjusting control area, and the plug-in piece being configured to be electrically connected with the backlight plate, wherein the plug-in piece has at least two plug-in holes arranged at intervals, so that the plug-in piece is electrically connected with the backlight plate by a wire harness.

[0007] According to a second aspect of the present application, a display is provided, comprising:

[0008] the circuit board as described above;

[0009] a backlight plate electrically connected with the light adjusting control area;

[0010] a power supply plate electrically connected with the board body, and used for supplying power to the main control area and the light adjusting control area.

[0011] Optionally, at least two plug-in pieces are arranged on the board body, and the backlight plate has at least two backlight areas, one plug-in piece being connected with one backlight area.

[0012] Optionally, each of the plug-in connectors has at least two signal transmission channels, each of the signal transmission channels is electrically connected to at least two control units, and each of the control units is electrically connected to at least two backlight sub-zones, wherein all the backlight sub-zones corresponding to one of the plug-in connectors form one of the backlight zones.

[0013] Optionally, the at least two control units corresponding to one of the signal transmission channels are connected in series, the signal transmitted in the signal transmission channel includes a dimming signal, and each of the control units is configured to capture the dimming signal corresponding thereto.

[0014] Optionally, the signal transmitted in the signal transmission channel further includes an identification signal configured to identify a fault in the signal transmission channel, the board body is electrically connected to the signal transmission channel, the board body is configured to receive the identification signal and output an alarm signal in response to the identification signal.

[0015] Optionally, the backlight panel is provided with a first memory configured to store a first version parameter of a driving system in the backlight panel, and the backlight panel is electrically connected to the main control area, and the main control area is configured to obtain the first version parameter.

[0016] Optionally, the board body is provided with a second memory, a comparator and a signal transmitter, the second memory is configured to store a second version parameter of a driving system in the board body, the comparator is electrically connected to the first memory and the second memory, the comparator is configured to output an upgrade signal based on the first version parameter being lower than the second version parameter, and the signal transmitter is electrically connected to the comparator and the backlight panel, and the signal transmitter is configured to send an upgrade package corresponding to the second version parameter to the backlight panel under the action of the upgrade signal, so as to upgrade the driving system in the backlight panel.

[0017] Optionally, the power supply board is integrally formed with the board body.

[0018] In the circuit board and the display according to the embodiments of the present application, the board body includes the main control area and the dimming control area, so that the main control function and the dimming control function can be integrated on one circuit board, thereby reducing the use of cables and fasteners. Therefore, the production cost of the display can be reduced, and the production efficiency of the display can be improved.

[0019] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0022] Figure 1 This is a schematic diagram of the circuit board structure provided in an exemplary embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the connection between the board body and the backlight plate provided in an exemplary embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the connection between the power board, the board body, and the backlight board provided in an exemplary embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the signal transmission of the connector provided in an exemplary embodiment of this application;

[0026] Figure 5 This is a schematic diagram of the partitioning of the backlight panel provided in an exemplary embodiment of this application;

[0027] Figure 6 This is a connection block diagram of the electrical components on the board body provided in an exemplary embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Board body; 11. Main control area; 12. Dimming control area; 13. Second memory; 14. Comparator; 15. Signal transmitter;

[0030] 2. Backlight panel; 21. Backlight area; 211. Backlight zone;

[0031] 3. Connectors; 31. Signal transmission channels; 32. Control units;

[0032] 4. Power supply board;

[0033] 5. Ribbon cable. Detailed Implementation

[0034] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort are within the protection scope of the present application.

[0035] According to a first aspect of the present application, referring to Figures 1 to 6 The present application provides a circuit board. The circuit board is applied to a display. The display comprises a backlight panel 2. The circuit board comprises a board body 1. The board body 1 has a master control area 11 and a dimming control area 12. The master control area 11 is electrically connected with the dimming control area 12. The dimming control area 12 is configured to be electrically connected with the backlight panel 2.

[0036] In the embodiments of the present application, by making the board body 1 comprise the master control area 11 and the dimming control area 12, the master control function and the dimming control function can be integrated on one circuit board, so as to reduce the use of cables and fasteners. Thus, the production cost of the display can be reduced, and the production efficiency of the display can be improved.

[0037] It can be understood that the master control area 11 is used for display master control, for example, controlling display switch, channel switching, display mode switching, etc. The dimming control area 12 can be used for controlling display brightness, contrast, etc. The master control area 11 is electrically connected with the dimming control area 12, so that the master control area 11 can receive an external dimming signal and send the dimming signal to the dimming control area 12, so that the dimming control area 12 can make the backlight panel 2 make corresponding display adjustment in response to the dimming signal. The master control area 11 and the dimming control area 12 on the board body 1 can be electrically connected by drawing lines on the circuit board. Thus, the master control area 11 and the dimming control area 12 can be connected without using cables, so as to reduce the use of cables, thereby reducing the production cost, simplifying the production process, and improving the production efficiency.

[0038] Based on the master control area 11 and the dimming control area 12 being integrally formed on one board body 1, the original master control board and the dimming control board can be integrated on one circuit board. Thus, one circuit board can be fixed in the display, so as to reduce the opening of the display shell, which can simplify the production process of the display shell. Moreover, the use of fasteners can be reduced, and the production cost of the display can be reduced. At the same time, the number of times of passing through the soldering furnace of the circuit board can be reduced, and the production process of the circuit board can be simplified.

[0039] In the related art, when a display is provided with a main control board and a dimming control board, based on the forming process of the circuit board, the main control board and the dimming control board both have invalid areas, which waste the raw materials of the circuit board and occupy the internal space of the display. In the embodiments of the present application, the main control function and the dimming control function are integrated on one circuit board, so that the invalid area can be arranged on only one circuit board, thereby reducing the area of the invalid area, reducing the loss of raw materials of the circuit board, and reducing the space occupied by the circuit board in the display.

[0040] As shown in Figure 2 In some embodiments, the board body 1 is configured with a plug-in piece 3. The plug-in piece 3 is located in the dimming control area 12. The plug-in piece 3 is configured to be electrically connected with the backlight plate 2. The plug-in piece 3 has at least two plug-in holes arranged at intervals, so that the plug-in piece 3 is electrically connected with the backlight plate 2 through the wire 5.

[0041] It can be understood that the dimming control area 12 transmits the dimming signal to the backlight plate 2 through the plug-in piece 3 and the wire 5 to realize the dimming of the backlight plate 2. Based on the arrangement of the at least two plug-in holes on the plug-in piece 3, the wire 5 is used to realize the electrical connection. Thus, the electrical connection can be realized by one-time plug-in, the connection steps of the cable can be simplified, and a single wire harness is not used, so that the distribution of the cable in the display is more regular.

[0042] For example, the plug-in piece 3 can select a 60-pin socket, and the spacing between the adjacent two plug-in holes is 0.5 mm. Thus, the wire 5 can be used instead of a single wire harness to reduce the number of single wire harnesses, so that the distribution of the cable in the display is more regular.

[0043] As shown in Figure 3 According to the second aspect of the present application, a display is provided, which comprises the above-mentioned circuit board. The display has all the beneficial effects of the above-mentioned circuit board, which will not be repeated here.

[0044] Specifically, the display further comprises the backlight plate 2 and the power supply plate 4. The backlight plate 2 is electrically connected with the dimming control area 12. The power supply plate 4 is electrically connected with the board body 1, and is used to supply power to the main control area 11 and the dimming control area 12.

[0045] It can be understood that the power supply plate 4 is used to connect an external power supply to supply power to the main control area 11 and the dimming control area 12. The dimming control area 12 is electrically connected with the backlight plate 2, which can transmit the dimming signal to realize the display adjustment of the backlight plate 2, and can also supply power to the backlight plate 2 to realize the display of the backlight plate 2.

[0046] As shown in Figure 3 and Figure 4As shown in some embodiments, the plate body 1 is provided with at least two plug-in connectors 3, and the backlight plate 2 has at least two backlight areas 21, one plug-in connector 3 corresponding to one backlight area 21.

[0047] It can be understood that the backlight plate 2 is formed with a plurality of backlight areas 21, each backlight area 21 corresponding to one plug-in connector 3, so that one plug-in connector 3 can be used to control one backlight area 21 to achieve partition dimming.

[0048] For example, the plate body 1 is provided with four plug-in connectors 3, and the backlight plate 2 has four backlight areas 21, one plug-in connector 3 corresponding to one backlight area 21.

[0049] As shown in some embodiments, each plug-in connector 3 has at least two signal transmission channels 31, each signal transmission channel 31 is electrically connected to at least two control units 32, and each control unit 32 is electrically connected to at least two backlight sub-areas 211, wherein all the backlight sub-areas 211 corresponding to one plug-in connector 3 form one backlight area 21. Figure 4 Figure 5 It can be understood that based on the above arrangement, one plug-in connector 3 can control a plurality of backlight sub-areas 211. At least two plug-in connectors 3 can control the respective backlight sub-areas 211 of the respective backlight areas 21. Thus, partition dimming control is achieved.

[0050] The control unit 32 is arranged on the backlight plate 2, and the control unit 32 captures the respective dimming signal and drives the corresponding backlight sub-area 211 to change the display parameter. The control unit 32 can have a signal conversion function, and the control unit 32 can convert the dimming signal into a control signal to control the corresponding backlight sub-area 211 to change the display parameter.

[0051] For example, the plate body 1 is provided with four plug-in connectors 3. Each plug-in connector 3 has four signal transmission channels 31. Each signal transmission channel 31 is electrically connected to nine control units 32. Each control unit 32 is electrically connected to eight backlight sub-areas 211. Thus, one plate body 1 can control 1152 backlight sub-areas 211.

[0052] As shown in some embodiments, each plug-in connector 3 has at least two signal transmission channels 31, each signal transmission channel 31 is electrically connected to at least two control units 32, and each control unit 32 is electrically connected to at least two backlight sub-areas 211, wherein all the backlight sub-areas 211 corresponding to one plug-in connector 3 form one backlight area 21.

[0053] As shown in some embodiments, each plug-in connector 3 has at least two signal transmission channels 31, each signal transmission channel 31 is electrically connected to at least two control units 32, and each control unit 32 is electrically connected to at least two backlight sub-areas 211, wherein all the backlight sub-areas 211 corresponding to one plug-in connector 3 form one backlight area 21. Figure 5 ​As shown, the plate body 1 has four backlight partitions 211. Each backlight partition 211 is divided into four primary partitions. The four primary partitions are respectively electrically connected with four signal transmission channels 31 of a connector 3. Each primary partition is divided into nine secondary partitions. Each secondary partition is provided with a control unit 32. Each secondary partition is divided into eight tertiary partitions, which are the backlight partitions 211. In this way, the backlight partitions 211 correspond to the connector 3, the signal transmission channels 31 and the control units 32.

[0054] In some embodiments, the plate body 1 can also be provided with a timing parameter controller. Each adjacent two connectors 3 can share one timing parameter controller. The timing parameter controller can be used to output a clock signal (timing parameter signal) for determining the period and frequency of the dimming signal.

[0055] In some embodiments, at least two control units 32 corresponding to the same signal transmission channel 31 are sequentially connected in series. The signal transmitted in the signal transmission channel 31 includes a dimming signal. Each control unit 32 is configured to capture the respective corresponding dimming signal.

[0056] It can be understood that each control unit 32 can capture the respective corresponding dimming signal and adjust the display parameters of the respective corresponding at least two backlight partitions 211 based on the parameters in the dimming signal to achieve partition dimming.

[0057] For example, there are nine control units 32 corresponding to the same signal transmission channel 31, and the nine control units 32 are connected in series at a time.

[0058] In some embodiments, the control unit 32 is a control IC (integrated circuit), for example, the control unit 32 is a chip.

[0059] In some embodiments, the signal transmitted in the signal transmission channel 31 also includes an identification signal. The identification signal is configured to identify a fault in the signal transmission channel 31. The signal transmission channel 31 is electrically connected with the plate body 1. The plate body 1 is configured to receive the identification signal and output an alarm signal in response to the identification signal indicating a fault.

[0060] It can be understood that based on the signal transmitted in the signal transmission channel 31 also including an identification signal, whether there is a fault in the transmission channel can be identified by the identification signal during signal transmission. The fault includes short circuit, open circuit and other faults. If there is a fault, when the plate body 1 receives the identification signal, an alarm signal can be outputted to remind the fault.

[0061] In some embodiments, the board body 1 can also be electrically connected with an alarm. The alarm is used to receive an alarm signal, so as to generate an alarm sound, alarm flashing, etc. by the alarm. Alternatively, the board body 1 is electrically connected with an alarm module, the alarm module can accept the alarm signal, and display the fault information at the non-faulted backlight area 21 on the display, so as to directly read the fault position and fault type.

[0062] In some embodiments, the first memory is arranged on the backlight plate 2, and is used to store a first version parameter of a driving system in the backlight plate 2. The backlight plate 2 is also electrically connected with the master control area 11, and the master control area 11 is used to acquire the first version parameter.

[0063] It can be understood that the first version parameter stored in the first memory is a driving software parameter of the driving system in the backlight plate 2. The master control area 11 is electrically connected with the first memory, so as to acquire the first version parameter, and know the version of the driving software in the backlight plate 2.

[0064] As shown in FIG. 1, Figure 6 In some embodiments, the board body 1 is provided with a second memory 13, a comparator 14 and a signal transmitter 15. The second memory 13 is used to store a second version parameter of a driving system in the board body 1. The comparator 14 is electrically connected with the first memory and the second memory 13. The comparator 14 is configured to output an upgrade signal based on that the first version parameter is lower than the second version parameter. The signal transmitter 15 is electrically connected with the comparator 14 and the backlight plate 2. The signal transmitter 15 is used to send an upgrade package corresponding to the second version parameter to the backlight plate 2 under the action of the upgrade signal, so as to upgrade the driving system in the backlight plate 2.

[0065] It can be understood that the second memory 13 stores the second version parameter of the driving system in the board body 1. When the comparator 14 compares that the first version parameter is lower than the second version parameter, it indicates that the version of the driving system in the backlight plate 2 is behind the version of the driving system in the board body 1. At this time, the driving system in the backlight plate 2 needs to be upgraded. The signal transmitter 15 sends the upgrade package to the backlight plate 2, and the backlight plate 2 upgrades the driving software after receiving the upgrade package. Thus, the software upgrade of the backlight plate 2 can be realized without disassembling, and the software upgrade of the backlight plate 2 is more convenient and fast,

[0066] In some embodiments, the upgrade package can be stored in the second memory 13. When the software system in the backlight plate 2 needs to be upgraded, the signal transmitter 15 calls the upgrade package in the second memory 13 and sends the upgrade package to the backlight plate 2, so as to upgrade the driving system in the backlight plate 2.

[0067] For example, the first memory can be an i 2The C signal sends the first version parameter of the driving system of the backlight plate 2 to the plate body 1. The plate body 1 compares the version information corresponding to the C signal with the second version parameter of itself. If they are consistent, the driving system of the backlight plate 2 does not need to be upgraded. If the first version parameter is behind the second version parameter, an upgrade package is sent to the backlight plate 2. 2 The C signal sends the first version parameter of the driving system of the backlight plate 2 to the plate body 1. The plate body 1 compares the version information corresponding to the C signal with the second version parameter of itself. If they are consistent, the driving system of the backlight plate 2 does not need to be upgraded. If the first version parameter is behind the second version parameter, an upgrade package is sent to the backlight plate 2.

[0068] In some embodiments, the power supply plate 4 is integrated with the plate body 1. It can be understood that, based on the integration of the power supply plate 4 and the plate body 1, the plate body 1 integrates the master control function, the partition light control function and the power supply function, and can further reduce the use of cables and simplify the production process of the display.

[0069] In some embodiments, the power supply plate 4 and the plate body 1 can also be provided in a split mode. For example, the power supply plate 4 is provided as a single-layer circuit board, and the plate body 1 is provided as a four-layer circuit board. Based on the split mode of the power supply plate 4 and the plate body 1, the production cost can be reduced.

[0070] In the description of the present application, the terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0071] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0072] The embodiments, implementation manners and related technical features of the present application can be combined, replaced with each other without conflict.

[0073] The above is only the preferred embodiments of the present application, and does not limit the present application in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the technical solution of the present application, still falls within the scope of the technical solution of the present application.

Claims

1. A circuit board for use in a display, the display including a back light panel, characterized by, The circuit board comprises: a board body having a main control area and a dimming control area, the main control area being electrically connected with the dimming control area, and the dimming control area being configured to be electrically connected with the backlight plate.

2. The circuit board of claim 1, wherein The board body is provided with a plug-in part located in the dimming control area, and the plug-in part is configured to be electrically connected with the backlight plate, wherein the plug-in part has at least two plug-in holes arranged at intervals to enable the plug-in part to be electrically connected with the backlight plate through a wire.

3. A display, characterized by The circuit board comprises: the circuit board according to claim 1 or 2; the backlight plate being electrically connected with the dimming control area; a power supply board being electrically connected with the board body and used for supplying power to the main control area and the dimming control area.

4. The display of claim 3, wherein, The board body is provided with at least two plug-in parts, and the backlight plate has at least two backlight areas, one plug-in part being connected with one backlight area.

5. The display of claim 4, wherein, Each plug-in part has at least two signal transmission channels, each signal transmission channel being electrically connected with at least two control units, and each control unit being electrically connected with at least two backlight sub-areas, wherein all the backlight sub-areas corresponding to one plug-in part form one backlight area.

6. The display of claim 5, wherein, The at least two control units corresponding to one signal transmission channel are connected in series, the signal transmitted in the signal transmission channel includes a dimming signal, and each control unit is configured to capture the dimming signal corresponding thereto.

7. The display of claim 5, wherein, The signal transmitted in the signal transmission channel further includes an identification signal, the identification signal is configured to identify a fault in the signal transmission channel, the signal transmission channel is electrically connected with the board body, the board body is used for receiving the identification signal and outputting an alarm signal in response to a feedback fault.

8. The display of claim 5, wherein, The backlight plate is provided with a first memory for storing a first version parameter of a driving system in the backlight plate, and the backlight plate is electrically connected with the main control area, and the main control area is used for acquiring the first version parameter.

9. The display of claim 8, wherein, The board body is provided with a second memory, a comparator and a signal transmitter, the second memory is used for storing a second version parameter of a driving system in the board body, the comparator is electrically connected with the first memory and the second memory, the comparator is configured to output an upgrade signal based on the first version parameter being lower than the second version parameter, and the signal transmitter is electrically connected with the comparator and the backlight plate, and the signal transmitter is used for sending an upgrade package corresponding to the second version parameter to the backlight plate under the action of the upgrade signal to upgrade the driving system in the backlight plate.

10. The display of any one of claims 3 to 8, wherein, The power supply board is integrally formed with the board body.

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