MLED lamp panel and driving method thereof, and mled display

Abstract

Embodiments of the present application provide an MLED lamp panel and a driving method thereof, and an MLED display. The lamp panel comprises a plurality of LED partitions. For each LED partition, the LED partition comprises a first type of switch, a second type of switch, and a plurality of MLEDs. When the first type of switch is on and the second type of switch is off, a first number of MLEDs in the LED partition are lit. When the first type of switch is off and the second type of switch is on, a second number of MLEDs in the LED partition are lit. The first number is greater than the second number. The present application provides an MLED lamp panel. By controlling the first type of switch and the second type of switch, two different numbers of MLEDs in each LED partition can be lit according to different switch states of the first type of switch and the second type of switch. That is, the reuse of the MLED lamp panel with two different numbers of MLEDs lit in each LED partition can be achieved, which can reduce the development time period and development cost.

Description

Technical Field

[0001] This application relates to the field of MLED display technology, and in particular to an MLED light board and its driving method, and an MLED display. Background Technology

[0002] MLED is short for mini-LED (mini-Light Emitting Diode). Each MLED board integrates several MLEDs, and the MLED board is an important component used in MLED displays.

[0003] Typically, the MLEDs integrated on each MLED board are divided into multiple LED zones, and each LED zone contains multiple MLEDs. For example, each LED zone may contain 2 MLEDs (e.g., ...). Figure 1b As shown), each LED zone has 4 MLEDs (e.g. Figure 1a (As shown), each LED zone has 6 MLEDs, each LED zone has 8 MLEDs, etc.

[0004] In related technologies, the driving control of MLEDs uses LED partitions as the basic unit. Taking two MLEDs and four MLEDs in each LED partition as examples, an MLED light board with four MLEDs in each LED partition is one design scheme, while an MLED light board with two MLEDs in each LED partition is another design scheme. When the number of MLEDs in the LED partition is different, the corresponding light board must be redesigned and relaid. In this case, for the same size MLED product, if the user has different requirements, the design and layout need to be redesigned, which will increase the development time and development cost. Summary of the Invention

[0005] The purpose of this application is to provide an MLED light board and its driving method, as well as an MLED display, to reduce development time and costs. The specific technical solution is as follows:

[0006] In a first aspect, embodiments of this application provide an MLED light panel, the light panel comprising multiple LED zones, and for each of the LED zones:

[0007] The LED partition includes a first type of switch, a second type of switch, and multiple MLEDs;

[0008] When the first type of switch is turned on and the second type of switch is turned off, a first number of MLEDs in the LED partition are lit.

[0009] When the first type of switch is off and the second type of switch is on, the second number of MLEDs in the LED partition are lit;

[0010] Wherein, the first quantity is greater than the second quantity.

[0011] In one possible implementation, when the first type of switch is off and the second type of switch is on, the illuminated MLEDs in the LED partition are symmetrically distributed along the central axis of the LED partition;

[0012] And / or,

[0013] When the first type of switch is on and the second type of switch is off, the illuminated MLEDs in the LED partition are symmetrically distributed along the central axis of the LED partition.

[0014] In one possible implementation, the LED partition includes N MLEDs, where the first quantity is N and the second quantity is N / 2, and N is a preset even number.

[0015] In one possible implementation, the LED partition includes a first MLED, a second MLED, a third MLED, and a fourth MLED, wherein the third MLED is connected to the fourth MLED, and the first type of switch includes a first switch and a second switch, and the second type of switch includes a third switch;

[0016] The first switch is connected between the first MLED and the third MLED;

[0017] The second switch is connected between the fourth MLED and the second MLED;

[0018] The third switch is connected between the first MLED and the second MLED.

[0019] In one possible implementation, a first end of the first MLED is connected to the positive driving electrode, and a second end of the first MLED is connected to the first end of the first switch.

[0020] The first terminal of the first switch is connected to the first terminal of the third switch, the second terminal of the first switch is connected to the first terminal of the third MLED, and the control terminal of the first switch is connected to the first signal terminal.

[0021] The second end of the third MLED is connected to the first end of the fourth MLED;

[0022] The second terminal of the fourth MLED is connected to the first terminal of the second switch;

[0023] The second terminal of the second switch is connected to the second terminal of the third switch and the first terminal of the second MLED, respectively, and the control terminal of the second switch is connected to the first signal terminal;

[0024] The second terminal of the second MLED is connected to the negative terminal of the driver;

[0025] The control terminal of the third switch is connected to the second signal terminal.

[0026] In one possible implementation, the first switch, the second switch, and the third switch are N-type TFTs or P-type TFTs.

[0027] In one possible implementation, the first MLED and the second MLED are symmetrically distributed along the longitudinal central axis of the LED partition.

[0028] In one possible implementation, when a first number of MLEDs are lit in the LED partition, a light-diffusing film of a first thickness is provided in the lamp board.

[0029] When a second number of MLEDs are lit in the LED partition, a light-diffusing film of a second thickness is provided in the lamp board;

[0030] Wherein, the first thickness is less than the second thickness.

[0031] In one possible implementation, the light panel further includes a driving circuit, which includes an AP module and a plurality of MLED driving modules, wherein the AP module is connected to the plurality of MLED driving modules respectively.

[0032] The AP module is used to generate enable signals to drive the plurality of MLED driver modules;

[0033] The MLED driver module is used to drive at least one LED partition.

[0034] In one possible implementation, each of the MLED driver modules is connected to a column of LED partitions for driving the MLEDs in that column of LED partitions.

[0035] Secondly, embodiments of this application provide a driving method for an MLED light panel, applied to any of the light panels described in the first aspect, the driving method comprising:

[0036] When the first number of MLEDs in the LED zone are lit, control the first type of switch to turn on and the second type of switch to turn off.

[0037] When the second number of MLEDs are lit in the LED zone, the first type of switch is turned off and the second type of switch is turned on.

[0038] Wherein, the first quantity is greater than the second quantity.

[0039] In one possible implementation, the driving method, applied to the lamp panel described in the first aspect, includes:

[0040] When the first signal terminal is connected to the first level and the second signal terminal is connected to the second level, the first number of MLEDs in each LED zone are lit.

[0041] When the first signal terminal is connected to the second level and the second signal terminal is connected to the first level, the second number of MLEDs in each LED zone are lit.

[0042] Thirdly, embodiments of this application provide an MLED display, including a light panel as described in any of the first aspects.

[0043] Beneficial effects of the embodiments in this application:

[0044] This application provides an MLED light board and its driving method, as well as an MLED display. The light board includes multiple LED zones. For each LED zone: the LED zone includes a first type of switch, a second type of switch, and multiple MLEDs; when the first type of switch is on and the second type of switch is off, a first number of MLEDs in the LED zone are lit; when the first type of switch is off and the second type of switch is on, a second number of MLEDs in the LED zone are lit; wherein, the first number is greater than the second number. This application provides an MLED light board that, by controlling the first type of switch and the second type of switch, can achieve the lighting of two different numbers of MLEDs in each LED zone according to the different switching states of the first type of switch and the second type of switch. That is, it can achieve the reuse of MLED light boards with different numbers of lit MLEDs in two types of LED zones, which can reduce the development time cycle and development cost.

[0045] Of course, implementing any product or method of this application does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0047] Figure 1a This is a schematic diagram of an MLED light panel in a related technology, where each LED section contains 4 MLEDs;

[0048] Figure 1b This is a schematic diagram of an MLED light board in a related technology, where each LED partition contains two MLEDs;

[0049] Figure 2 This is a first schematic diagram of an MLED light panel according to an embodiment of this application;

[0050] Figure 3 This is a first schematic diagram of the LED partitions in the MLED light board according to an embodiment of this application;

[0051] Figure 4 This is a second schematic diagram of the LED partitions in the MLED light panel according to an embodiment of this application;

[0052] Figure 5 This is a parameter diagram of the MLED light board in the embodiments of this application and related technologies;

[0053] Figure 6 This is a first schematic diagram of the driving circuit in the MLED light board according to an embodiment of this application;

[0054] Figure 7a This is a schematic diagram of the screen to be displayed on the MLED light board in an embodiment of this application;

[0055] Figure 7b This is a schematic diagram of the actual display screen in an MLED light panel based on related technologies.

[0056] Figure 7c This is a diagram illustrating the display effect of an MLED light panel in an embodiment of this application.

[0057] Figure 8 This is a second schematic diagram of the driving circuit in the MLED light board according to an embodiment of this application;

[0058] Figure 9 This is a schematic diagram of a driving method for an MLED light board according to an embodiment of this application;

[0059] Figure 10 This is a timing diagram of CKV1 and CKV2 in the driving method of the MLED light board according to an embodiment of this application;

[0060] Figure 11 This is a schematic diagram showing that each LED zone in this application has 4 MLEDs lit up;

[0061] Figure 12 This is a schematic diagram showing that each LED zone in this application has two MLEDs lit. Detailed Implementation

[0062] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art based on this application are within the scope of protection of this application.

[0063] In related technologies, for an MLED light board, the number of MLEDs in each LED section of the MLED light board is fixed. For example, see Figure 1, where... Figure 1a There are 4 MLEDs in each LED zone. Figure 1b There are 2 MLEDs in each LED zone. Understandably, the number of MLEDs in each LED zone can also be other numbers. Figure 1a and Figure 1b Only schematic diagrams for 2 MLEDs and 4 MLEDs are shown. Schematic diagrams for other numbers are not described here.

[0064] Typically, an MLED light board with 4 MLEDs per LED zone is one design option, while one with 2 MLEDs per LED zone is another. Depending on the number of MLEDs in each LED zone, the corresponding light board must be redesigned and relaid. In this case, for the same size MLED product, if the user has different requirements—for example, for an MLED light board of a certain size with 4 MLEDs lit per LED zone, the user needs an MLED light board with 2 MLEDs lit per LED zone within that size—then a new design and layout for an MLED light board with 2 MLEDs lit per LED zone within that size is required. This increases development time and costs.

[0065] To enable the reuse of MLED light boards with varying numbers of lit MLEDs in each LED zone, this application provides an MLED light board, see [link to relevant documentation]. Figure 2 The light panel includes multiple LED zones, and for each LED zone:

[0066] The LED partition includes a first type of switch, a second type of switch, and multiple MLEDs;

[0067] When the first type of switch is turned on and the second type of switch is turned off, a first number of MLEDs in the LED partition are lit.

[0068] When the first type of switch is off and the second type of switch is on, the second number of MLEDs in the LED partition are lit;

[0069] Wherein, the first quantity is greater than the second quantity.

[0070] MLED is short for mini-LED. Generally, LED devices with a size between 50-200μm are defined as MLED.

[0071] By controlling the different switching states of the first type of switch and the second type of switch, the first type of switch and the second type of switch are in different switching states in the same time period. Based on the two different states of the first type of switch and the second type of switch, two different numbers of MLEDs in each LED zone are lit.

[0072] The switch can be controlled to be in an on or off state by inputting a high or low level to the control terminal of the switch, thus placing the switch in different states. Other methods existing in the art can also be used to achieve the on or off state of the switch; this application does not limit the specific method used.

[0073] The first and second quantities can be set according to the specific dimensions of the MLED light panel. For example, the first quantity is 4 and the second quantity is 2, where the first quantity is greater than the second quantity, i.e., 4 is greater than 2. For example, the first quantity is 6 and the second quantity is 2, etc. In one example, when the first type of switch is on and the second type of switch is off, the first quantity of MLEDs in the LED zone are lit; when the first type of switch is off and the second type of switch is on, the second quantity of MLEDs in the LED zone are lit; this means that when the first type of switch is on and the second type of switch is off, 4 MLEDs in the LED zone are lit; when the first type of switch is off and the second type of switch is on, 2 MLEDs in the LED zone are lit.

[0074] In this embodiment of the application, by controlling the first type of switch and the second type of switch, and according to the different switching states of the first type of switch and the second type of switch, two different numbers of MLEDs in each LED zone can be lit up. That is, two MLED light boards with different numbers of MLEDs lit up in each LED zone can be reused, thereby reducing the development time cycle and development cost.

[0075] In one possible implementation, when the first type of switch is off and the second type of switch is on, the illuminated MLEDs in the LED partition are symmetrically distributed along the central axis of the LED partition;

[0076] And / or,

[0077] When the first type of switch is on and the second type of switch is off, the illuminated MLEDs in the LED partition are symmetrically distributed along the central axis of the LED partition.

[0078] In one example, when the second quantity is 2, the two lit MLEDs in the LED partition are symmetrically distributed along the central axis of the LED partition. When the second quantity is 4, the four lit MLEDs in the LED partition are symmetrically distributed along the central axis of the LED partition.

[0079] In this embodiment of the application, when the first type of switch is closed and the second type of switch is open, the number of MLEDs lit in the LED partition is a second number, which is smaller than the first number and is a portion of the MLEDs in the LED partition. The second number of lit MLEDs are symmetrically distributed along the central axis of the LED partition, which can ensure that the distribution of MLEDs in the MLED board is uniform when a portion of the MLEDs are lit, thereby making the light emission in each LED partition more uniform.

[0080] In one possible implementation, the LED partition includes N MLEDs, where the first quantity is N and the second quantity is N / 2, and N is a preset even number.

[0081] The LED partition consists of N MLEDs, where N is a preset even number, and the specific value of N can be determined according to the size of the MLED panel. In one example, if N equals 4, the first quantity is 4 and the second quantity is 2; if N equals 6, the first quantity is 6 and the second quantity is 3; if N equals 8, the first quantity is 8 and the second quantity is 2.

[0082] In this embodiment, the LED partition includes N MLEDs, with a first quantity of N and a second quantity of N / 2. That is, when the first type of switch is on and the second type of switch is off, the first number of MLEDs in the LED partition are lit, indicating that all MLEDs in the LED partition are lit; when the first type of switch is off and the second type of switch is on, the second number of MLEDs in the LED partition are lit, indicating that half of the MLEDs in the LED partition are lit. Specifically, when the first type of switch is on and the second type of switch is off, 4 MLEDs in the LED partition are lit; when the first type of switch is off and the second type of switch is on, 2 MLEDs in the LED partition are lit. By controlling the switching states of the first and second types of switches, the reuse of two types of light panels—one with 4 MLEDs lit in each LED partition and the other with 2 MLEDs lit in each LED partition—is achieved. Similarly, by controlling the switching states of the first and second types of switches, the reuse of two types of light panels—one with 8 MLEDs lit in each LED partition and the other with 4 MLEDs lit in each LED partition—is also achieved.

[0083] In the embodiments of this application, two types of MLED light boards, one with a first quantity of N and the other with a second quantity of N / 2, can be reused in each LED partition.

[0084] In one possible implementation, see Figure 3 The LED partition includes a first MLED, a second MLED, a third MLED, and a fourth MLED, wherein the third MLED is connected to the fourth MLED, and the first type of switch includes a first switch and a second switch, and the second type of switch includes a third switch;

[0085] The first switch is connected between the first MLED and the third MLED;

[0086] The second switch is connected between the fourth MLED and the second MLED;

[0087] The third switch is connected between the first MLED and the second MLED.

[0088] In this embodiment, each LED partition includes four MLEDs, namely the first MLED, the second MLED, the third MLED, and the fourth MLED.

[0089] The first type of switch includes a first switch and a second switch, which are in the same switching state. The second type of switch includes a third switch, which is in a different switching state.

[0090] The first switch is connected between the first MLED and the third MLED; the second switch is connected between the fourth MLED and the second MLED; the third switch is connected between the first MLED and the second MLED. See also... Figure 3 When the first type of switch (the first switch and the second switch) is on and the second type of switch (the third switch) is off, the first MLED is connected to the third MLED through the first switch, the third MLED is connected to the fourth MLED, and the fourth MLED is connected to the second MLED through the second switch. At this time, all four MLEDs are connected, and all four MLEDs in the LED zone are lit. When the first type of switch (the first switch and the second switch) is off and the second type of switch (the third switch) is on, the first MLED is connected to the second MLED through the third switch, and two MLEDs in the LED zone are lit.

[0091] In this embodiment of the application, by controlling the switching states of the first type of switch and the second type of switch, it is possible to light up 4 MLEDs in each LED zone and 2 MLEDs in each LED zone, thereby realizing the reuse of two types of MLED light boards.

[0092] In one possible implementation, see Figure 4The first end of the first MLED (MLED1) is connected to the driving positive electrode (LED+), and the second end of the first MLED (MLED1) is connected to the first end of the first switch (T1).

[0093] The first end of the first switch (T1) is connected to the first end of the third switch (T3), the second end of the first switch (T1) is connected to the first end of the third MLED (MLED3), and the control end of the first switch (T1) is connected to the first signal end (CKV1).

[0094] The second end of the third MLED (MLED3) is connected to the first end of the fourth MLED (MLED4);

[0095] The second end of the fourth MLED (MLED4) is connected to the first end of the second switch (T2);

[0096] The second terminal of the second switch (T2) is connected to the second terminal of the third switch (T3) and the first terminal of the second MLED (MLED2), respectively, and the control terminal of the second switch (T2) is connected to the first signal terminal (CKV1);

[0097] The second terminal of the second MLED (MLED2) is connected to the driving negative terminal (LED-);

[0098] The control terminal of the third switch (T3) is connected to the second signal terminal (CKV2).

[0099] In this embodiment of the application, by controlling the switching states of the first type of switch (T1, T2) and the second type of switch (T3), it is possible to light up 4 MLEDs (MLED1, MLED2, MLED3, MLED4) in each LED zone and 2 MLEDs (MLED1, MLED2) in each LED zone, thereby realizing the reuse of two types of MLED light boards.

[0100] In one possible implementation, the first switch, the second switch, and the third switch are N-type TFTs or P-type TFTs.

[0101] In one example, the first switch, the second switch, and the third switch can all be TFTs (Thin Film Transistors). For any switch in the MLED lamp board of this application, the switch can be an N-type TFT or a P-type TFT, which can be selected according to the actual situation; if the first terminal of the switch is the source or drain, then the second terminal of the switch is the drain or source corresponding to the first terminal.

[0102] By applying different voltage values ​​to the control terminals of the switches, the switching state of the switches can be controlled. In one example, if the first, second, and third switches are N-type TFTs, applying a high level to the control terminals will control the switches to be in the on state, and applying a low level to the control terminals will control the switches to be in the off state. If the first, second, and third switches are P-type TFTs, applying a low level to the control terminals will control the switches to be in the on state, and applying a high level to the control terminals will control the switches to be in the off state.

[0103] In the embodiments of this application, the first switch, the second switch, and the third switch can be either an N-type TFT or a P-type TFT. Depending on the type of switch, the corresponding control terminal is determined to be connected to a high level or a low level, thereby controlling the switch to be in different states.

[0104] In one possible implementation, the first MLED and the second MLED are symmetrically distributed along the longitudinal central axis of the LED partition.

[0105] See Figure 3 The first MLED and the second MLED are symmetrically distributed along the longitudinal central axis of the LED partition.

[0106] The above embodiments describe two scenarios where four MLEDs are lit in each LED zone and two MLEDs are lit in each LED zone, thus achieving the reuse of two types of MLED light boards. For the reuse of other two types of MLED light boards, the arrangement of MLEDs in the corresponding two types of MLED light boards will be different, and the number of TFT switches and the signals connected to the control terminal will also be different. The design of the light board can be adjusted according to actual needs. This application mainly describes the reuse of two types of light boards where four MLEDs are lit in each LED zone and two MLEDs are lit in each LED zone.

[0107] For the reuse of MLED panels in two scenarios—one where 4 MLEDs are lit in each LED zone and the other where 2 MLEDs are lit in each LED zone—the first MLED and the second MLED are symmetrically distributed along the longitudinal central axis of the LED zone.

[0108] In this embodiment, the first MLED and the second MLED are symmetrically distributed along the longitudinal central axis of the LED partition, which can ensure that the MLEDs in the MLED panel are evenly distributed when some MLEDs are lit.

[0109] In one possible implementation, when a first number of MLEDs are lit in the LED partition, a light-diffusing film of a first thickness is provided in the lamp board.

[0110] When a second number of MLEDs are lit in the LED partition, a light-diffusing film of a second thickness is provided in the lamp board;

[0111] Wherein, the first thickness is less than the second thickness.

[0112] See Figure 5 ,according to Figure 5 The values ​​for the uniform light film thickness, LCM (Liquid Crystal Display Module) thickness, and power consumption at 500 nits required for each LED partition with 4 MLEDs in the relevant technical solutions in this application are compared with the values ​​for the uniform light film thickness, module thickness, and power consumption at 500 nits when reusing two MLED light boards with 4 MLEDs lit in each LED partition and 2 MLEDs lit in each LED partition in the technical solutions of this application. It can be seen that: when 4 MLEDs are lit in one LED partition, the number of uniform light films stacked on top of the MLED light board is small, the overall BLU (Backlight Unit) thickness is thin, and the BLU power consumption is low when the same brightness is achieved. When 2 MLEDs are lit in one LED partition, the number of uniform light films stacked on top of the light board is large, the overall BLU thickness is thick, and the BLU power consumption is high when the same brightness is achieved.

[0113] In this embodiment of the application, when a first number of MLEDs are lit in an LED zone, a light-diffusing film of a first thickness is provided in the lamp board; when a second number of MLEDs are lit in an LED zone, a light-diffusing film of a second thickness is provided in the lamp board; wherein, the first thickness is less than the second thickness. In one example, when four MLEDs are lit in an LED zone, the number of light-diffusing films stacked above the MLED lamp board is small and the thickness is thin; when two MLEDs are lit in an LED zone, the number of light-diffusing films stacked above the MLED lamp board is large and the thickness is thick. Therefore, the embodiments of this application can achieve two BLU or module thickness specifications through a set of MLED light board solutions. In one example, if the uniform light film is stacked according to the design of 2 MLEDs in one LED partition and 4 MLEDs in one LED partition, when it is necessary to light up 2 MLEDs in one LED partition, a light board with 4 MLEDs in one LED partition can be used. By controlling the switching states of the first type of switch and the second type of switch, 2 MLEDs in one LED partition can be lit up. At the same time, a certain number of uniform light films need to be added to the MLED light board, thereby realizing the reuse function of two light boards for lighting up 2 MLEDs in one LED partition and 4 MLEDs in one LED partition.

[0114] In this embodiment, different numbers of MLEDs are lit in the LED partition, and the thickness of the light-diffusing film material set in the lamp board is different. When reusing the two types of lamp boards, it is necessary to adjust the thickness of the light-diffusing film stacked on top of the MLED lamp board.

[0115] In one possible implementation, see Figure 6 The light panel also includes a driving circuit, which includes an AP module and multiple MLED driving modules, wherein the AP module is connected to the multiple MLED driving modules respectively;

[0116] The AP module is used to generate enable signals to drive the plurality of MLED driver modules;

[0117] The MLED driver module is used to drive at least one LED partition.

[0118] The AP (Application Processor) module is a processor that can generate clock signals. Through the AP module, enable signals that drive multiple MLED driver modules can be generated.

[0119] In existing MLED light panels, the actual display of the image is as follows: the central area is a bright image, and the area surrounding the central area is a dark image, such as... Figure 7a As shown, the common approach is: the MLED driver module operates, but only provides a very small current to the LED zones, so that the actual image displayed by the corresponding LED zones is as shown. Figure 7b As shown (because the MLED driver module provides a very small current, the corresponding LED zone cannot display a completely dark image, so it is represented in gray in the figure).

[0120] When a display requires some LED zones to show a dark state, the most power-efficient method is to ensure that the MLED driver modules driving the corresponding LED zones are not working. This differs from the existing method where the MLED driver modules are working but only providing a very small current to the LED zones. In this embodiment, an AP module generates enable signals to drive multiple MLED driver modules. These enable signals control whether the MLED driver modules are working, thereby controlling the display of the corresponding LED zones. By controlling the AP module so that no current flows through the MLEDs in the LED zones, a completely dark state can be displayed. See [link to display effect]. Figure 7c , Figure 7c This is for illustrative purposes only. To more clearly illustrate which LED zones need to display dark images and which need to display bright images, dividing lines are drawn in the diagram. In actual display, the area surrounding the bright image in the central region is the dark image, and there are no dividing lines.

[0121] In this embodiment, the AP module generates enable signals to drive multiple MLED driver modules. The enable signals are used to control whether the MLED driver modules work, which can effectively reduce the power consumption of the MLED light board.

[0122] In one possible implementation, each of the MLED driver modules is connected to a column of LED partitions for driving the MLEDs in that column of LED partitions.

[0123] The MLED driver module generates drive signals, namely LED+ and LED-, to drive the MLEDs in the LED partitions of the column, thereby driving the MLEDs in each LED partition.

[0124] In this embodiment, each MLED driver module is connected to a column of LED partitions, driving the MLEDs in that column of LED partitions, thereby enabling partition control of the LED partitions.

[0125] In one example, see Figure 8 The diagram includes a power chip and a battery. The power chip is connected to each MLED driver module and is used to generate the power signal required by the MLED driver module. The battery is used to generate the voltage signal required by the power chip. The AP module and the battery are modules in the whole system. Figure 8 Only one possible driving circuit structure is shown. The connection method between the power chip, battery and MLED driving module is a common connection method, which will not be described in detail here.

[0126] This application provides a driving method for an MLED light board, see [link to relevant documentation]. Figure 9 Applied to any of the above-described lamp panels, the driving method includes:

[0127] S101, when a first number of MLEDs are lit in the LED partition, control the first type of switch to turn on and the second type of switch to turn off.

[0128] S102, when the second number of MLEDs are lit in the LED zone, control the first type of switch to turn off and the second type of switch to turn on;

[0129] Wherein, the first quantity is greater than the second quantity.

[0130] By controlling the switching states of the first type of switch and the second type of switch, two different numbers of MLEDs in each LED zone can be lit.

[0131] In this embodiment of the application, by controlling the first type of switch and the second type of switch, and according to the different switching states of the first type of switch and the second type of switch, two different numbers of MLEDs in each LED zone can be lit up. That is, two MLED light boards with different numbers of MLEDs lit up in each LED zone can be reused, thereby reducing the development time cycle and development cost.

[0132] In one possible implementation, it is applied to, for example Figure 5 The light panel, wherein the driving method includes:

[0133] When the first signal terminal is connected to the first level and the second signal terminal is connected to the second level, the first number of MLEDs in each LED zone are lit.

[0134] When the first signal terminal is connected to the second level and the second signal terminal is connected to the first level, the second number of MLEDs in each LED zone are lit.

[0135] The first voltage level can be either a high or low voltage signal, and the second voltage level can also be either a high or low voltage signal. These first and second voltage levels control the switching states of the first, second, and third switches, thereby enabling the illumination of two different numbers of MLEDs in each LED zone. The specific high or low voltage signals corresponding to the first and second voltage levels depend on the type of switch.

[0136] In one example, such as Figure 4 In the case that the first switch (T1), the second switch (T2), and the third switch (T3) are N-type TFTs, the driving method includes:

[0137] When a high-level signal is connected to the first signal terminal (CKV1) and a low-level signal is connected to the second signal terminal (CKV2), the first number of MLEDs in each LED zone are lit.

[0138] When a low-level signal is applied to the first signal terminal (CKV1) and a high-level signal is applied to the second signal terminal (CKV2), the second number of MLEDs in each LED zone are lit.

[0139] The timing diagrams of CKV1 and CKV2 are as follows: Figure 10 As shown, CKV1 and CKV2 have opposite levels at the same time. For example, at the first moment, when CKV1 is high, CKV2 is low.

[0140] When T1, T2, and T3 are N-type TFTs, with a high-level signal applied to the first signal terminal (CKV1) and a low-level signal applied to the second signal terminal (CKV2), T1 and T2 are turned on, and T3 is turned off. At this time, four MLEDs (MLED1, MLED2, MLED3, and MLED4) in each LED zone are lit. Figure 11 As shown in the diagram, gray indicates that the MLED is lit. When a low-level signal is applied to the first signal terminal (CKV1) and a high-level signal is applied to the second signal terminal (CKV2), T1 and T2 are off, and T3 is on. At this time, two MLEDs (MLED1 and MLED2) in each LED zone are lit, as shown. Figure 12 As shown in the figure, gray indicates that the MLED is lit.

[0141] In the embodiments of this application, when the first switch (T1), the second switch (T2), and the third switch (T3) are N-type TFTs, by controlling the control terminals of the first type of switch and the second type of switch to be connected to different levels, the first type of switch and the second type of switch are in different switching states, which can realize the lighting of two different numbers of MLEDs in each LED partition.

[0142] In one example, such as Figure 4 In the case that the first switch (T1), the second switch (T2), and the third switch (T3) are P-type TFTs, the driving method includes:

[0143] When a low-level signal is connected to the first signal terminal (CKV1) and a high-level signal is connected to the second signal terminal (CKV2), the first number of MLEDs in each LED zone are lit.

[0144] When the high-level signal is connected to the first signal terminal (CKV1) and the low-level signal is connected to the second signal terminal (CKV2), the second number of MLEDs in each LED zone are lit.

[0145] When T1, T2, and T3 are P-type TFTs, with a low-level signal applied to the first signal terminal (CKV1) and a high-level signal applied to the second signal terminal (CKV2), T1 and T2 are turned on, and T3 is turned off. At this time, four MLEDs (MLED1, MLED2, MLED3, and MLED4) in each LED zone are lit. Figure 11 As shown in the diagram, gray indicates that the MLED is lit. When a high-level signal is applied to the first signal terminal (CKV1) and a low-level signal is applied to the second signal terminal (CKV2), T1 and T2 are off, and T3 is on. At this time, two MLEDs (MLED1 and MLED2) in each LED zone are lit, as shown. Figure 12As shown in the figure, gray indicates that the MLED is lit.

[0146] In the embodiments of this application, when the first switch (T1), the second switch (T2), and the third switch (T3) are P-type TFTs, by controlling the control terminals of the first type of switch and the second type of switch to be connected to different levels, the first type of switch and the second type of switch are in different switching states, which can realize the lighting of two different numbers of MLEDs in each LED partition.

[0147] This application provides an MLED display, including any of the light panels described above.

[0148] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0149] The various embodiments in this specification are described in a related manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.

[0150] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. An MLED light panel, characterized in that, The light panel includes multiple LED zones, and for each LED zone: The LED partition includes a first type of switch, a second type of switch, and multiple MLEDs; When the first type of switch is turned on and the second type of switch is turned off, a first number of MLEDs in the LED partition are lit. When the first type of switch is off and the second type of switch is on, the second number of MLEDs in the LED partition are lit; Wherein, the first quantity is greater than the second quantity; When the first type of switch is off and the second type of switch is on, the MLEDs lit in the LED partition are symmetrically distributed along the central axis of the LED partition; And / or, When the first type of switch is on and the second type of switch is off, the MLEDs lit in the LED partition are symmetrically distributed along the central axis of the LED partition; The LED partition includes a first MLED, a second MLED, a third MLED, and a fourth MLED, wherein the third MLED is connected to the fourth MLED, and the first type of switch includes a first switch and a second switch, and the second type of switch includes a third switch; The first switch is connected between the first MLED and the third MLED; The second switch is connected between the fourth MLED and the second MLED; The third switch is connected between the first MLED and the second MLED.

2. The lamp panel according to claim 1, characterized in that, The LED partition includes N MLEDs, where the first quantity is N and the second quantity is N / 2, and N is a preset even number.

3. The lamp panel according to claim 1, characterized in that, The first end of the first MLED is connected to the positive terminal of the driver, and the second end of the first MLED is connected to the first end of the first switch. The first terminal of the first switch is connected to the first terminal of the third switch, the second terminal of the first switch is connected to the first terminal of the third MLED, and the control terminal of the first switch is connected to the first signal terminal. The second end of the third MLED is connected to the first end of the fourth MLED; The second terminal of the fourth MLED is connected to the first terminal of the second switch; The second terminal of the second switch is connected to the second terminal of the third switch and the first terminal of the second MLED, respectively, and the control terminal of the second switch is connected to the first signal terminal; The second terminal of the second MLED is connected to the negative terminal of the driver; The control terminal of the third switch is connected to the second signal terminal.

4. The lamp panel according to claim 3, characterized in that, The first switch, the second switch, and the third switch are N-type TFTs or P-type TFTs.

5. The lamp panel according to claim 1, characterized in that, The first MLED and the second MLED are symmetrically distributed along the longitudinal central axis of the LED partition.

6. The lamp panel according to claim 1, characterized in that, When a first number of MLEDs are lit in the LED partition, a light-diffusing film of a first thickness is provided in the lamp board; When a second number of MLEDs are lit in the LED partition, a light-diffusing film of a second thickness is provided in the lamp board; Wherein, the first thickness is less than the second thickness.

7. The lamp panel according to claim 1, characterized in that, The light panel also includes a driving circuit, which includes an AP module and multiple MLED driving modules, wherein the AP module is connected to the multiple MLED driving modules respectively. The AP module is used to generate enable signals to drive the plurality of MLED driver modules; The MLED driver module is used to drive at least one LED partition.

8. The lamp panel according to claim 7, characterized in that, Each of the MLED driver modules is connected to a column of LED partitions and is used to drive the MLEDs in that column of LED partitions.

9. A driving method for an MLED light board, characterized in that, Applied to the lamp panel according to any one of claims 1-8, the driving method includes: When the first number of MLEDs in the LED zone are lit, control the first type of switch to turn on and the second type of switch to turn off. When the second number of MLEDs are lit in the LED zone, the first type of switch is turned off and the second type of switch is turned on. Wherein, the first quantity is greater than the second quantity.

10. The driving method according to claim 9, characterized in that, The driving method, applied to the lamp panel of claim 3, comprises: When the first signal terminal is connected to the first level and the second signal terminal is connected to the second level, the first number of MLEDs in each LED zone are lit. When the first signal terminal is connected to the second level and the second signal terminal is connected to the first level, the second number of MLEDs in each LED zone are lit.

11. An MLED display, characterized in that, Includes the lamp panel as described in any one of claims 1-8.

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