CN114758627A

CN114758627A - Lamp panel structure, driving method and related equipment

Info

Publication number: CN114758627A
Application number: CN202210435968.1A
Authority: CN
Inventors: 苏学臻; 黄建明; 林雅宾; 余海龙; 潘湾萍; 贾小波
Original assignee: BOE Technology Group Co Ltd; Fuzhou BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Fuzhou BOE Optoelectronics Technology Co Ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-07-15
Anticipated expiration: 2042-04-24
Also published as: CN114758627B

Abstract

The application discloses lamp panel structure, driving method and related equipment, relates to the technical field of microelectronics, and can reduce the using number of driving chips under the condition of ensuring higher partition control resolution, thereby reducing the occupied space of the driving chips and reducing the cost. Lamp plate structure includes: a plurality of LEDs divided into at least two control zones, each of the control zones comprising at least two LEDs; the driving chips are electrically connected with the LEDs in the at least two control subareas; the switch assembly is respectively arranged between the driving chip and each control subarea correspondingly connected with the driving chip and used for receiving a switch control signal which is used for controlling the connection and disconnection of the control subareas correspondingly connected with the driving chip and the passage of the driving chip.

Description

Lamp panel structure, driving method and related equipment

Technical Field

The application relates to the technical field of microelectronics, in particular to a lamp panel structure, a driving method and related equipment.

Background

At present, a partition of the conventional lamp panel usually uses one driving chip for driving control so as to realize partition driving of the lamp panel, and flexible control of different partitions and different brightness can be realized to achieve the purpose of fine control. However, in the application scenario of higher partition control resolution, the driving method may increase the number of driver chips used, the space occupied by the driver chips on the lamp panel becomes larger, and the cost of the lamp panel increases accordingly.

Disclosure of Invention

The embodiment of the application provides a lamp panel structure, a driving method and related equipment, which can reduce the using number of driving chips under the condition of ensuring higher partition control resolution, and further reduce the occupied space of the driving chips and reduce the cost.

The first aspect of the embodiment of the application provides a lamp plate structure, includes:

the LED driving device comprises a plurality of LEDs, a driving circuit, a control circuit and a control circuit, wherein the LEDs are divided into at least two control partitions, and each control partition comprises at least two LEDs;

the driving chips are electrically connected with the LEDs in the control subareas;

the switch assembly is respectively arranged between the driving chip and each control subarea correspondingly connected with the driving chip and used for receiving a switch control signal which is used for controlling the connection and disconnection of the control subareas correspondingly connected with the driving chip and the passage of the driving chip.

In some embodiments, the lamp panel structure further includes:

a time controller to provide the switch control signal to the switch assembly.

In some embodiments, the switch control signal comprises a turn-on signal;

the time controller is used for simultaneously providing the conducting signals for all the switch assemblies correspondingly connected with the same driving chip; or the like, or, alternatively,

the time controller is used for simultaneously providing the conducting signals for the switch components correspondingly connected with the same driving chip.

In some embodiments, the driving chip is configured to provide a driving signal to the LED in the control zone to which the driving chip is connected;

under the condition that the driving signals provided by the same driving chip are not changed, the time controller is used for controlling different control partitions to generate different brightness by adjusting the duty ratios of the conducting signals provided for different switch assemblies, wherein the time periods of the conducting signals received by different switch assemblies corresponding to the same driving chip are not overlapped.

In some embodiments, the switch control signal and the drive signal are both square wave signals;

in a period of the driving signal, the sum of the time lengths of the conducting signals received by the switch components corresponding to the same driving chip is less than or equal to the half period of the driving signal.

In some embodiments, the driving chip is configured to provide different driving signals to the LEDs in the control sub-regions connected correspondingly, so as to control different brightness of the control sub-regions.

In some embodiments, the switch control signal and the drive signal are both square wave signals, and the frequency of the drive signal is a multiple of the frequency of the switch control signal received by the corresponding switch assembly.

In some embodiments, the switching assembly comprises at least one switching device and/or at least one capacitor.

In some embodiments, the switching device comprises a thin film transistor.

In some embodiments, the lamp panel structure further includes:

the LED backlight module comprises a back plate, a light source and a light source, wherein the back plate comprises a lamp area and a driving area, a lamp bead binding structure is arranged in the lamp area, the LED is electrically connected with the back plate through the lamp bead binding structure, a chip binding structure is arranged in the driving area, and the driving chip is electrically connected with the back plate through the chip binding;

the LEDs in the same control subarea are connected in series or in parallel through the lamp bead binding structures, and the LEDs are electrically connected with the driving chip through the lamp bead binding structures and the chip binding structures.

In some embodiments, the backplane comprises a substrate layer;

the lamp bead binding structure comprises a first conducting layer and a first binding layer which are electrically connected, the first conducting layer is arranged between the first binding layer and the substrate layer, and the first binding layer is used for binding the LED;

the chip binding structure comprises a second conductive layer and a second binding layer which are electrically connected, the second conductive layer is arranged between the second binding layer and the substrate layer, and the second binding layer is used for binding the driving chip;

the first conductive layer and the second conductive layer are arranged in the same layer, and the first binding layer and the second binding layer are arranged in the same layer.

In some embodiments, the switching component comprises a gate, a source, and a drain;

the driving binding structure comprises an output pin, a grounding pin, an addressing pin and a power supply pin, wherein the grounding pin is electrically connected with the output pin through the driving chip, and the addressing pin is electrically connected with the output pin through the driving chip;

the lamp bead binding structure comprises a positive electrode pin and a negative electrode pin, the negative electrode pin corresponding to at least one LED in each control partition is electrically connected with one of the source electrode and the drain electrode, and the other of the source electrode and the drain electrode is electrically connected with the output pin;

the back plate further comprises a positive electrode signal line, a power supply signal line and a grounding signal line, wherein the positive electrode signal line is electrically connected with at least one positive electrode pin in each control partition, the power supply signal line is electrically connected with the power supply pins, and the grounding signal line is electrically connected with the grounding pins.

A second aspect of the embodiment of the present application provides a driving method for a lamp panel structure, which is applied to the lamp panel structure according to the first aspect, and the driving method includes:

receiving an LED driving instruction;

and controlling the switch assembly to be switched on or switched off based on the LED driving instruction so as to drive the LEDs in at least two control subareas which are correspondingly and electrically connected through the same driving chip.

In some embodiments, the controlling, based on the LED driving instruction, the switching of the switch component to drive the LEDs in at least two control partitions electrically connected to the same driving chip includes:

transmitting a switch control signal to the switch component based on the LED driving instruction so as to control the switch component to be turned on or off, wherein the switch component is turned on to conduct the correspondingly connected control partition and the drive chip, and the switch component is turned off to disconnect the correspondingly connected control partition and the drive chip;

and transmitting a driving signal to the LEDs in the control subarea correspondingly connected with the switched-on switch component through the driving chip based on the LED driving instruction so as to light the LEDs.

In some embodiments, the switch control signal comprises a turn-on signal for controlling the turn-on of the switch component;

the transmitting a switch control signal to the switch assembly based on the LED driving instruction to control the switch assembly to be turned on or off includes:

based on the LED driving instruction, providing the conducting signals for all the switch assemblies correspondingly connected with the same driving chip; or the like, or, alternatively,

and providing the conducting signal to a part of the switch assembly correspondingly connected with the same driving chip based on the LED driving instruction.

In some embodiments, the transmitting a switch control signal to the switch assembly to control the switch assembly to be turned on or off based on the LED driving command includes:

adjusting duty ratios of the turn-on signals provided to different switch assemblies based on the LED driving instructions, wherein time periods of the turn-on signals received by different switch assemblies do not overlap;

the transmitting a driving signal to the LEDs in the control subarea correspondingly connected with the switched-on switch component through the driving chip based on the LED driving instruction comprises:

based on the LED driving instruction, the same driving signals are transmitted to the LEDs in the control subareas correspondingly connected with the switched-on switch components through the driving chip so as to control different control subareas to generate different brightness, and in one period of the driving signals, the sum of the time lengths of the conducting signals received by the switch components corresponding to the same driving chip is less than or equal to the half period of the driving signals.

transmitting the conducting signals to different switch assemblies based on the LED driving instructions, wherein the frequencies of the conducting signals received by different switch assemblies are the same;

based on the LED driving instruction, different driving signals are transmitted to the LEDs in the control subareas correspondingly connected with the different turned-on switch assemblies through the driving chip so as to control the different control subareas to generate different brightness, wherein the frequency of the driving signals is a multiple of the frequency of the switch control signals received by the corresponding switch assemblies.

In some embodiments, the driving signal comprises an addressing signal;

transmitting the addressing signal to an addressing pin based on the LED driving instruction so as to transmit the addressing signal to an output pin through the driving chip;

after the transmission of the addressing signal is finished, the addressing pin and the output pin are controlled to be disconnected, and the output pin and the grounding pin are controlled to be connected, so that the LED of the control partition corresponding to the addressing signal respectively forms a loop with a positive electrode signal line and a grounding signal line, and the LED is lightened.

In a third aspect of the embodiments of the present application, there is provided a drive controller, including:

a memory having a computer program stored therein;

and the processor is used for realizing the driving method of the lamp panel structure according to the second aspect when executing the computer program.

In a fourth aspect of the embodiments of the present application, there is provided a display device including:

the lamp panel structure according to the first aspect, wherein the lamp panel structure is used as a display panel, or the lamp panel structure is used as a backlight source; and/or the presence of a gas in the gas,

a drive controller as claimed in the third aspect.

The lamp panel structure, the driving method and the related equipment provided by the embodiment of the application control switch assembly are controlled to be turned on or turned off by setting the switch control signal, so that the control partitions correspondingly connected with the switch assembly are controlled to be turned on or off with the passage of the driving chip, at least two control partitions can be controlled by one driving chip simultaneously or in a time-sharing mode, the number of the driving chips can be reduced on the basis of not influencing the control resolution of the lamp panel structure, and the cost is greatly reduced. In addition, the number of the driving chips is reduced, so that the occupied space of the driving chips can be reduced, the occupied space of the LED of the lamp panel structure can be increased, and the frame is reduced.

Drawings

Fig. 1 is a schematic structural view of a lamp panel structure provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of another lamp panel structure provided in the embodiment of the present application;

fig. 3 is a schematic diagram of a driving timing sequence of a lamp panel structure according to an embodiment of the present application;

fig. 4 is a schematic diagram of a driving timing sequence of another lamp panel structure provided in the embodiment of the present application;

fig. 5 is a schematic structural view of another lamp panel structure provided in the embodiment of the present application;

fig. 6 is a schematic view of a partial cross-sectional structure of a lamp panel structure provided in an embodiment of the present application;

fig. 7 is a schematic flowchart of a driving method for a lamp panel structure provided in an embodiment of the present application;

fig. 8 is a schematic structural block diagram of a drive controller according to an embodiment of the present application;

fig. 9 is a schematic structural block diagram of a display device according to an embodiment of the present application.

Detailed Description

In order to better understand the technical solutions provided by the embodiments of the present specification, the technical solutions of the embodiments of the present specification are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present specification are detailed descriptions of the technical solutions of the embodiments of the present specification, and are not limitations on the technical solutions of the embodiments of the present specification, and the technical features in the embodiments and examples of the present specification may be combined with each other without conflict.

In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The term "two or more" includes the case of two or more.

In view of this, embodiments of the present application provide a lamp panel structure, a driving method, and related devices, which can reduce the number of driving chips used under the condition of ensuring higher partition control resolution, thereby reducing the occupied space of the driving chips and reducing the cost.

The first aspect of this application embodiment provides a lamp plate structure, and figure 1 is the structure schematic diagram of a lamp plate structure that this application embodiment provided. As shown in fig. 1, the lamp panel structure provided by the embodiment of the present application includes: a plurality of LEDs divided into at least two control zones 100, each control zone 100 comprising at least two LEDs; the driving chips 200, at least one driving chip 200 is electrically connected with the LEDs in at least two control subareas 100; the switch assembly 300, the switch assembly 300 is respectively disposed between the driving chip 200 and each control partition 100 to which the driving chip 200 is correspondingly connected. The number of the driving chips 200, the number of the LEDs, and the number of the switch assemblies 300 shown in fig. 1 are all schematic, and different numbers of the LEDs, the driving chips 200, and the control sections 100 may be provided according to the area and the resolution of the lamp panel structure, for example, the higher the control resolution of the lamp panel structure is, the higher the density of the control sections is. The switch assemblies 300 may correspond to the control partitions 100 one to one, and the correspondence relationship between the driving chips 200 and the control partitions 100 may be one-to-two or one-to-many. The switch component 300 is turned on to conduct the paths between the driving chip 200 and the corresponding control sub-area 100, and the driving chip 200 can drive the LEDs in the corresponding control sub-area 100 to be turned on; the closing of the switch assembly 300 may disconnect the driving chip 200 from the corresponding connected control partition 100, and the LEDs within the corresponding control partition 100 cannot be lit. The switch assembly 300 is configured to receive a switch control signal, and the switch control signal is configured to control the connection and disconnection between the control partition 100 and the driving chip 200, which are correspondingly connected to the switch assembly 300. The switch control signal may be from the driving chip 200, or the switch control signal may also be from a separately configured control chip, such as a T-Con IC (time control chip) or an FPGA (Field Programmable Gate Array), and the embodiments of the present application are not particularly limited.

It should be noted that the driving chip 200 may drive the LEDs to light, and the lit LEDs in the lamp panel structure may be used for illumination, as a backlight source of a liquid crystal display panel, or directly for display, and the embodiment of the present application is not particularly limited. The at least two LEDs in each control sub-area 100 may be connected in parallel, in series, or in a mixture of series and parallel, and the application is not limited in particular.

Illustratively, as shown in fig. 1, one driving chip 200 is correspondingly connected to two switch assemblies 300, that is, one driving chip 200 can correspondingly control the LEDs in two control partitions 100, and the lighting states of all the LEDs in each control partition 100 are consistent. One driving chip 200 can control the lighting states of the LEDs in the two control sub-areas 100 in a time-sharing manner, and one driving chip 200 can also control the lighting states of the LEDs in the two control sub-areas 100 at the same time, so that one driving chip 200 can drive the two control sub-areas 100. Fig. 1 is only schematic, and one driving chip 200 may also drive a plurality of control partitions 100. As shown in fig. 1, the LEDs in the control sub-area 100 are connected in series, the positive electrode of one end of the series-connected LEDs is electrically connected to the positive signal line VLED, the negative electrode of the other end of the series-connected LEDs is electrically connected to the switch assembly 300, and when the switch assembly 300 is turned on, the driving chip 200 is turned on to form a driving loop, so that the LEDs in the control sub-area 100 corresponding to the turned-on switch assembly 300 can be turned on, and the control of the driving chip 200 on the control sub-area 100 is realized.

Note that the type of the LED (light emitting diode) according to the embodiment of the present application is not particularly limited, and for example, an LED having a quantum well junction, an LED having a columnar structure, an LED having a double heterojunction, or the like can be used. The LED may be a structure with a size reduced to the order of hundreds of micrometers, for example, the area of the light emitting region of the LED is 1mm²Below, or selected to 10000 μm²Hereinafter, the thickness may be 3000 μm²Hereinafter, the thickness is still further 700. mu.m²Below, even at 200 μm²Hereinafter, the examples of the present application are not particularly limited.

It should be noted that, usually, one control partition uses one IC (driver chip) to control, so as to achieve the purpose of fine control, but at the same time, too much IC is used to increase the cost, the occupied space of the driver chip becomes larger, and the frame of the lamp panel structure becomes larger.

In view of the above problems, the lamp panel structure provided in the embodiment of the present application connects at least two control partitions 100 by setting one driving chip 200, and the driving chip 200 and the connected control partitions 100 are turned on or off by the switch component 300, so that at least two control partitions 100 can be controlled by one driving chip 200, and the number of the driving chips 200 can be reduced without affecting the control resolution of the lamp panel structure, thereby greatly reducing the cost. In addition, the number of the driving chips 200 is reduced, so that the occupied space of the driving chips 200 can be reduced, the occupied space of the LED of the lamp panel structure can be increased, and the frame is reduced.

In some embodiments, the switching assembly 300 includes at least one switching device and/or at least one capacitor.

In some embodiments, the switching device may include a thin film transistor.

For example, the switching element 300 may have only one TFT (thin film transistor), and may also be 7T1C (7 TFTs, 1 capacitor), 2T1C (2 TFTs, 1 capacitor), or 1T1C (1 TFT, 1 capacitor), which is not limited in this embodiment. The structure of one TFT occupies a small space and has low cost. The structures of 7T1C, 2T1C, and 1T1C can implement current compensation between devices according to specific circuit structures, can avoid the performance of the switching element 300 from being affected by the electrical drift of the TFT along with the accumulation of the service time, can improve the service life of the switching element 300, and further ensure effective driving of the LED.

Exemplarily, fig. 2 is a schematic structural view of another lamp panel structure provided in the embodiment of the present application. As shown in fig. 2, the switching element 300 includes a TFT, a driving chip 200 is connected to the first transistor T1 and the second transistor T2, the first transistor T1 is connected to the first control partition 110, and the second transistor T2 is connected to the second control partition 120. The first switch control signal L1 is used to control the first transistor T1 to be turned on or off, and the second switch control signal L2 is used to control the second transistor T2 to be turned on or off. Under the control of the first switch control signal L1 and the second switch control signal L2, the first transistor T1 and the second transistor T2 may be turned on simultaneously, turned off simultaneously, turned on respectively, or turned off respectively, and the embodiment of the present application is not limited in particular. The gates of the first and second transistors T1 and T2 are used to receive the first and second switch control signals L1 and L2, respectively, one of the source and drain is used to connect the LED, and the other of the source and drain is connected to the driving chip 200.

The lamp panel structure that this application embodiment provided adopts thin film transistor as the constitution device of switch module, utilizes thin film transistor's ripe technology and good switching performance, can obtain the switch module that can accurate control on-off state, does benefit to the function that realizes two or more control subareas of a driver chip drive, saves driver chip's use quantity, reduce cost.

In some embodiments, the lamp panel structure provided by the embodiment of the present application further includes: and the time controller is used for providing a switch control signal to the switch component. The time controller may comprise a T-Con IC or an FPGA, and the embodiment of the present application is not particularly limited. As shown in fig. 2, the first and second switch control signals L1 and L2 may be generated by a timing controller and transmitted to the gate of the thin film transistor. It should be noted that the time controller may also be integrated in the driving chip, and the embodiment of the present application is not particularly limited.

In some embodiments, the switch control signal may include an on signal that may control turning on the switch assembly 300 and an off signal that may control turning off the switch assembly 300. For example, the switch control signal may be characterized by a binary code, the on signal being characterized by a 1, and the off signal being characterized by a 0. The time controller may be configured to provide the on signals to all the switch assemblies 300 correspondingly connected to the same driving chip 200 at the same time; alternatively, the time controller may be configured to provide the conducting signals to the switch assemblies 300 correspondingly connected to the same driving chip 200 at the same time.

For example, as shown in fig. 2, at the same time, the switching control signal may be L1 ═ 1, and L2 ═ 1, that is, the switching control signal is (1,1), then both the first transistor T1 and the second transistor T2 are turned on, and one driving chip 200 may drive the LEDs in the two control partitions 100 to light up at the same time. The switch control signal may also be (1,0), (0,1) or (0,0) at the same time, where (1,0) corresponds to one driving chip 200 driving the first control sub-area 110 to light at the same time, and the second control sub-area 120 not to light; (0,1) one driving chip 200 drives the first control sub-area 110 not to be lighted and the second control sub-area 120 to be lighted at the same time; the (0,0) corresponds to that one driving chip 200 drives the first control sub-area 110 and the second control sub-area 120 not to be lighted at the same time. It should be noted that the first switch control signal L1 and the second switch control signal L2 may be collectively represented in a code corresponding to one switch control signal.

The lamp panel structure provided by the embodiment of the application can utilize the switch control signal provided by the time controller to control the on or off of the correspondingly connected switch component 300, and realize the drive control of one drive chip 200 on two or more control partitions 100.

In some embodiments, the driving chip is used to provide a driving signal to the LED in the corresponding connected control zone, for example, the driving signal may be provided in the form of a driving current. Under the condition that the driving signal provided by the same driving chip 200 is not changed, the time controller is configured to control different control sub-areas 100 to generate different luminances by adjusting duty ratios of the conducting signals provided to different switch assemblies 300, wherein time periods of the conducting signals received by the different switch assemblies 300 corresponding to the same driving chip 200 do not overlap. The switching control signals and the driving signals may both adopt a square wave signal form, and under the condition that the pulse amplitude of the driving signals is not changed, that is, under the condition that the driving current provided by the same driving chip 200 to the two or more control sub-areas 100 which are correspondingly connected is not changed, the duty ratios of the conduction signals which control different switch assemblies 300 in the switching control signals are adjusted, so that the control sub-areas 100 corresponding to different switch assemblies 300 can generate different brightness.

For example, as shown in fig. 2, the first switch control signal L1 and the second switch control signal L2 are both square wave signals. The on signal in both the first switch control signal L1 and the second switch control signal L2 may be characterized by a high level of a square wave signal and the off signal by a low level. It should be noted that, by controlling the switch assembly 300 with the square wave signal, the switch assembly 300 can be alternately switched on and off at the corresponding frequency, and further, the LEDs in the corresponding control sub-area 100 are alternately switched on and off at the corresponding frequency, and the frequency of the square wave signal can be controlled to be greater than 24HZ, so that the alternating switching of the lighting on and off of the LEDs cannot be distinguished by human eyes, and the macroscopic appearance seen by human eyes is the continuous lighting state of the LEDs. The driving of the driving chip 200 for the LEDs in the control sub-area 100 is mainly to provide a conducting loop for the LEDs, and then the driving chip controls the current in the conducting loop of the LEDs, that is, the driving current, so as to realize the driving of the LEDs. The adjustment of the driving current can be realized by adjusting the corresponding resistance in the driving chip 200, and the change of the resistance brings the current flowing through the LED loop to change.

The duty ratios of the different switch assemblies 300 receiving the conducting signals may be adjusted, respectively, to adjust the duty ratio of the conducting signal in the first switch control signal L1 and the duty ratio of the conducting signal in the second switch control signal L2, for example, if the duty ratio of the conducting signal in the first switch control signal L1 is greater than the duty ratio of the conducting signal in the second switch control signal L2, in the case that the driving chip 200 provides the same driving current to the first control sub-area 110 and the second control sub-area 120, in a period of one driving signal, the duration of the conducting signal received by the first transistor T1 is greater than the duration of the conducting signal received by the second transistor T2, and further, the brightness generated by the LEDs in the first control sub-area 110 is greater than the brightness generated by the LEDs in the second control sub-area 120. It will be appreciated that the duty cycle of the turn-on signal received by the first transistor T1 in the driving signal cycle is greater than the duty cycle of the turn-on signal received by the second transistor T2 in the driving signal cycle, and thus the duration that the LEDs in the first control sub-section 110 are illuminated is greater than the duration that the LEDs in the second control sub-section 120 are illuminated in the same driving signal cycle.

In one period of the driving signal, the sum of the time lengths of the conducting signals received by the switching components corresponding to the same driving chip is less than or equal to the half period of the driving signal.

Exemplarily, fig. 3 is a schematic diagram of a driving timing sequence of a lamp panel structure provided in the embodiment of the present application. As shown in FIG. 3, the abscissa of the timing diagram of FIG. 3 is time, the ordinate is the amplitude V of the square wave signal, and the half period of the driving signal L0 is t₀The on signal of the first switch control signal L1 has a duration t during one period of the driving signal₁The on signal of the second switch control signal L2 has a duration t₂T shown in FIG. 3₀＝t₁+t₂. May be t in other embodiments₀＞t₁+t₂(ii) a If t₁＝t₂If the on-signal duty ratio of the first switch control signal L1 is the same as the on-signal duty ratio of the second switch control signal L2, the brightness of the corresponding first control sub-area 110 is the same as the brightness of the corresponding second control sub-area 120; if t₁＞t₂If the on-signal duty cycle of the first switch control signal L1 is greater than the on-signal duty cycle of the second switch control signal L2, the brightness of the corresponding first control sub-area 110 is greater than the brightness of the corresponding second control sub-area 120; if t₁＜t₂Then the on-signal duty cycle of the first switch control signal L1 is smaller than the on-signal duty cycle of the second switch control signal L2, which corresponds to the brightness of the first control sub-section 110 being less than the same brightness of the second control sub-section 120. The duration of the on signal of the first switch control signal L1 is t₁The longer the period of the on signal of the second switch control signal L2 is t, the larger the duty ratio of the on signal in the first switch control signal L1 is₂The longer the on-duty ratio of the on signal in the second switch control signal L2 is, the larger the duty ratio is.

Referring to fig. 3, the frequency of the first switch control signal L1, the frequency of the second switch control signal L2, and the frequency of the driving signal L0 are all the same.

The lamp plate structure provided by the embodiment of the application, under the unchangeable condition of drive signal size, through the frequency of regulating switch control signal, adjust the luminance of the different control subareas that same drive chip connects, can realize corresponding under the condition of driving two or more control subareas at a drive chip, realize the luminance of the different control subareas of nimble control, can guarantee the subregion control's of lamp plate structure precision, guarantee the nimble adjustment of lamp plate structure subregion luminance when reducing drive chip use quantity.

In some embodiments, the driving chip is used for providing different driving signals to the LEDs in the corresponding connected control subareas so as to control different control subareas to generate different brightness. The switch control signal and the driving signal are both square wave signals, and the frequency of the driving signal is a multiple of the frequency of the switch control signal received by the corresponding switch component.

Exemplarily, fig. 4 is a schematic diagram of a driving timing sequence of another lamp panel structure provided in the embodiment of the present application. Referring to fig. 2 and 4, the frequency of the first switch control signal L1 and the frequency of the second switch control signal L2 may be the same, and the frequency of the driving signal may be 2 times the frequency of the first switch control signal L1. Illustratively, one driving chip is correspondingly connected with a plurality of control subareas, and the driving signal is a plurality of times of the frequency of the switch control signal. However, in different periods of the driving signal L0, the amplitude of the driving signal may be set to be different, and the amplitude of the driving signal is different, which represents that the magnitude of the driving signal is different, specifically, the magnitude of the driving current is different or the magnitude of the built-in resistor of the driving chip is different. As shown in fig. 4, if the amplitude of the driving signal in the duration of the on signal in the second switch control signal L2 is greater than that in the duration of the on signal in the first switch control signal L1, the brightness in different control sub-areas can be controlled in a time-sharing manner according to the magnitude of the driving signal. It should be noted that, when the driving signal represents the driving current, the larger the driving signal is, the larger the brightness of the corresponding control sub-area is; when the driving signal represents the resistance in the LED loop controlled by the driving chip, the larger the driving signal is, the larger the resistance in the LED loop is, the smaller the current in the LED loop is, and the smaller the brightness of the corresponding control subarea is; the above description is illustrative, and not intended to be a specific limitation on the embodiments of the present application. Shown in FIG. 4, t₀＝t₁＝t₂The frequency of L0 is 2 times the frequency of L1, and the frequency of L1 is the same as the frequency of L2.

It should be noted that both the frequency of the driving signal and the frequency of the switching control signal need to be greater than 24HZ, so that the human eye cannot recognize the flickering of the LED.

The lamp plate structure that this application embodiment provided, the different control subareas of big or small control that provide the drive signal of different control subareas through control driver chip send different luminance, can realize corresponding under the condition of driving two or more control subareas at a driver chip, realize the luminance of the different control subareas of nimble control, can guarantee the precision of the subregion control of lamp plate structure, guarantee the nimble adjustment of lamp plate structure subregion luminance when reducing driver chip use quantity.

In some embodiments, the lamp panel structure provided by the embodiment of the present application further includes: the LED backlight module comprises a back plate, a light source and a light source, wherein the back plate comprises a light area and a driving area, a light bead binding structure is arranged in the light area, an LED is electrically connected with the back plate through the light bead binding structure, a chip binding structure is arranged in the driving area, and a driving chip is electrically connected with the back plate through chip binding; LEDs in the same control partition are connected in series or in parallel through the lamp bead binding structure, and the LEDs and the driving chip are electrically connected through the lamp bead binding structure and the chip binding structure. The embodiment of the application provides lamp plate structure, can bind LED and driver chip on the backplate through the binding structure that corresponds, through setting up corresponding binding structure and interconnecting link on the backplate, realize being connected between LED and driver chip, the LED. It should be noted that the LED includes an anode and a cathode, and the lamp bead binding structure is also divided into an anode pin and a cathode pin. The switch assembly can be directly fabricated on the back plate using a thin film process.

Exemplarily, fig. 5 is a schematic structural diagram of another lamp panel structure provided in the embodiment of the present application. As shown in fig. 5, the positive electrodes P and the negative electrodes N of the 4 LEDs in the control partition are connected end to form a series structure, in the first control partition 110, the positive electrode P at one end of the series LED string is connected to the positive signal line VLED, and the negative electrode N at the other end of the string is electrically connected to the source or the drain of the first transistor T1. The gates of the first transistor T1 and the second transistor T2 are electrically connected to the time controller 400.

In some embodiments, fig. 6 is a schematic partial cross-sectional structure view of a lamp panel structure provided in an embodiment of the present application. Fig. 6 illustrates a local cross-sectional structure of a bonding region of an LED1, a bonding region of an LED2, a first transistor T1 electrically connected to an LED1, a second transistor T2 connected to an LED2, and a bonding region of a corresponding same driver chip, where the LED1 and the LED2 are respectively located in different control partitions, the LED1 belongs to the first control partition 110, and the LED2 belongs to the second control partition 120. With reference to fig. 5 and 6, the backplane comprises a substrate layer 500; the lamp bead binding structure 600 comprises a first conductive layer 610 and a first binding layer 620 which are electrically connected, wherein the first conductive layer 610 is arranged between the first binding layer 620 and the substrate layer 500, and the first binding layer 620 is used for binding the LED; the chip binding structure 700 includes a second conductive layer 710 and a second binding layer 720, which are electrically connected, the second conductive layer 710 is disposed between the second binding layer 720 and the substrate layer 500, and the second binding layer 720 is used for binding the driving chip 200; the first conductive layer 610 and the second conductive layer 710 are disposed in the same layer, and the first binding layer 620 and the second binding layer 720 are disposed in the same layer. The first conductive layer 610, the second conductive layer 710, the first binding layer 620 and the second binding layer 720 can be made of copper, and the copper surfaces of the first binding layer 620 and the second binding layer 720 can be subjected to surface treatment, so that the bonding of the corresponding pins of the LED and the driving chip is facilitated. The buffer layer 501 may be disposed between the substrate layer and the first conductive layer 610, and the buffer layer 501 may isolate impurity ions and the like in the substrate layer 500.

As shown in fig. 6, the switching element 300 includes a gate G, a source S and a drain D, both of which are disposed at the same layer as the first conductive layer 610. The grid G can also be made of copper, and the conductivity of the copper is high. A semiconductor layer 802 is arranged between the gate G and the source S and the drain D, a gate insulating layer 801 is arranged between the gate G and the semiconductor layer 802, a passivation layer 803 and a flat layer 804 are further sequentially arranged on one side of the source S and the drain D away from the substrate layer 500, the passivation layer 803 can be used for isolating water and oxygen and protecting a metal layer and a device structure, and the flat layer 804 can be used for flattening the surface of the back plate.

With reference to fig. 5 and 6, the chip bonding structure 700 includes an output pin OUT, a ground pin GND electrically connected to the output pin OUT through the driving chip 200, an address pin DI electrically connected to the output pin OUT through the driving chip 200, and a power supply pin PWR; the lamp bead binding structure 600 comprises an anode pin LP and a cathode pin LN, the anode pin LP is bound with an anode P of the LED, and the cathode pin LN is bound with a cathode N of the LED. A negative electrode pin LN corresponding to at least one LED in each control partition is electrically connected with the source S, and the drain D is electrically connected with the output pin OUT; the back plate further comprises a positive electrode signal line VLED, a power supply signal line PWR and a grounding signal line GND, wherein the positive electrode signal line VLED is electrically connected with at least one positive electrode pin LP in each control partition, the power supply signal line PWR is electrically connected with the power supply pin PWR, and the grounding signal line GND is electrically connected with the grounding pin GND. The power supply signal line pwr is used to supply power to the driver chip 200, and the ground signal line gnd is grounded.

Illustratively, as shown in fig. 5, a continuously constant voltage signal is transmitted on the positive signal line VLED, which provides a constant positive voltage to the positive pole P of the LED. The time controller 400 transmits a first switch control signal L1 to the first transistor T1, the time controller 400 transmits a second switch control signal L2 to the second transistor T2, the addressing pin DI receives an addressing signal, the addressing signal includes address information of a control partition that needs to be lit, the addressing pin DI is controlled inside the driving chip 200 to be communicated with the output pin OUT, after the addressing signal is transmitted, the output pin OUT is controlled inside the driving chip 200 to be communicated with the ground pin GND, so that the negative electrodes N of the LEDs in the corresponding control partition are connected to the ground signal line GND, the LEDs in the control partition form a loop with the positive electrode signal line VLED and the ground signal line GND through the driving chip 200, and the LEDs can be lit. The address of the corresponding control partition in the addressing signal corresponds to the switch control signal.

Illustratively, during initialization of the driving chip 200, the driving chip 200 receives a string of addressing signals to determine opening and closing of the control partition, and after receiving the addressing signals, the driving chip 200 controls the output pin OUT to control whether the control partition forms a loop or not, so as to drive the LED to emit light; the addressing signal needs to be re-asserted every refresh. When the addressing signal is input, the addressing pin DI and the output pin OUT transmit the addressing signal through the inside of the driving chip 200, after the addressing information is finished, the connection between the addressing pin DI and the output pin OUT is disconnected, and the on-off of the output pin OUT and the ground pin GND can control the on-off of the LED lighting loop.

In a second aspect of the embodiment of the present application, a driving method for a lamp panel structure is provided, where the driving method is applied to the lamp panel structure according to the first aspect, and fig. 7 is a schematic flowchart of the driving method for a lamp panel structure provided in the embodiment of the present application. As shown in fig. 7, the driving method includes:

s101: and receiving an LED driving command. The LED driving instruction can be sent by the host control system, and the LED driving instruction can comprise an instruction sequence for controlling the switch assembly and an instruction sequence for controlling the driving chip.

S201: and controlling the switch assembly to be turned on or off based on the LED driving instruction so as to drive the LEDs in at least two control subareas which are correspondingly and electrically connected through the same driving chip.

Referring to fig. 1, each control sub-area 100 includes at least two LEDs, each driving chip 200 is electrically connected to the LEDs in at least two control sub-areas 100, and a switch assembly 300 is respectively disposed between the driving chip 200 and each control sub-area 100 to which the driving chip 200 is correspondingly connected. The switch assemblies 300 may correspond to the control partitions 100 one to one, and the correspondence relationship between the driving chips 200 and the control partitions 100 may be one-to-two or one-to-many. The switch component 300 is turned on to conduct the paths between the driving chip 200 and the corresponding control sub-area 100, and the driving chip 200 can drive the LEDs in the corresponding control sub-area 100 to be turned on; closing of the switch assembly 300 may disconnect the driving chip 200 from the corresponding connected control partition 100, and the LEDs within the corresponding control partition 100 cannot be lit.

Illustratively, as shown in fig. 1, one driving chip 200 is correspondingly connected to two switch assemblies 300, that is, one driving chip 200 can correspondingly control the LEDs in two control zones 100, and the lighting states of all the LEDs in each control zone 100 are consistent. One driving chip 200 can control the lighting states of the LEDs in the two control sub-areas 100 in a time-sharing manner, and one driving chip 200 can also control the lighting states of the LEDs in the two control sub-areas 100 at the same time, so that one driving chip 200 can drive the two control sub-areas 100. Fig. 1 is only schematic, and one driving chip 200 may also drive a plurality of control partitions 100. As shown in fig. 1, the LEDs in the control sub-area 100 are connected in series, the positive electrode of one end of the series-connected LEDs is electrically connected to the positive electrode signal line VLED, the negative electrode of the other end of the series-connected LEDs is electrically connected to the switch assembly 300, and when the switch assembly 300 is turned on, the driving chip 200 is turned on to form a driving loop, so that the LEDs in the control sub-area 100 corresponding to the turned-on switch assembly 300 can be turned on, and the driving chip 200 can control the control sub-area 100 in a sub-area manner.

It should be noted that, usually, one control partition uses one IC (driver chip) to achieve the purpose of fine control, but at the same time, too many ICs are used to increase the cost, the occupied space of the driver chip is increased, and the frame of the lamp panel structure is increased.

In view of the above problems, in the driving method of the lamp panel structure provided in the embodiment of the present application, one driving chip 200 is connected to at least two control partitions 100, and the driving chip 200 and the connected control partitions 100 are turned on or off by the switch component 300 to achieve on or off, so that one driving chip can control at least two control partitions, the number of the driving chips 200 can be reduced on the basis of not affecting the control resolution of the lamp panel structure, and the cost can be greatly reduced. In addition, the number of the driving chips 200 is reduced, so that the occupied space of the driving chips 200 can be reduced, the occupied space of the LED of the lamp panel structure can be increased, and the frame is reduced.

In some embodiments, step S201 may include:

and based on the LED driving instruction, transmitting a switch control signal to the switch assembly to control the switch assembly to be turned on or turned off, wherein the switch assembly is turned on to conduct the correspondingly connected control partition and the drive chip, and the switch assembly is turned off to disconnect the correspondingly connected control partition and the drive chip. For example, the switch control signal may be a program code stored in the time controller, the switch control signal may also be a program code burned in the driver chip, and the switch control signal may also be generated in the motherboard control system and sent to the driver chip or the time controller. For example, the LED driving instruction may control the driving chip or the time controller to issue the switch control signal to the switch assembly, which is not limited in this embodiment.

And based on the LED driving instruction, transmitting a driving signal to the LEDs in the control subareas correspondingly connected with the started switch assembly through the driving chip so as to light the LEDs. The driving signal can control the output pin of the driving chip to be communicated with the grounding pin, so that the lighting loop of the LED is switched on.

In some embodiments, the switch control signal includes a turn-on signal for controlling the turn-on of the switch component.

Based on the LED drive instruction, transmit switch control signal to the switching element to control the switching element to open or close, including:

based on the LED driving instruction, providing conduction signals for all switch assemblies correspondingly connected with the same driving chip; or the like, or a combination thereof,

and providing a conducting signal for part of switch assemblies correspondingly connected with the same driving chip based on the LED driving instruction.

For example, the switch control signal may be characterized by a binary code, the on signal being characterized by a 1, and the off signal being characterized by a 0. The time controller may be configured to provide the on signals to all the switch assemblies 300 correspondingly connected to the same driving chip 200 at the same time; alternatively, the time controller may be configured to provide the conducting signals to the switch assemblies 300 correspondingly connected to the same driving chip 200 at the same time.

For example, referring to fig. 2, at the same time, the switching control signal may be L1 ═ 1, L2 ═ 1, that is, the switching control signal is (1,1), then the first transistor T1 and the second transistor T2 are both turned on, and one driving chip 200 may drive the LEDs in the two control partitions 100 to light up at the same time. The switch control signal may also be (1,0), (0,1) or (0,0) at the same time, where (1,0) corresponds to one driving chip 200 driving the first control sub-area 110 to light at the same time, and the second control sub-area 120 not to light; (0,1) corresponding to the first control sub-area 110 is driven by one driving chip 200 to be not lighted at the same time, and the second control sub-area 120 is lighted; (0,0) corresponds to one driver chip 200 driving neither the first control sub-area 110 nor the second control sub-area 120 to light up at the same time. It should be noted that the first switch control signal L1 and the second switch control signal L2 may be collectively represented in a code corresponding to one switch control signal.

According to the driving method of the lamp panel structure provided by the embodiment of the application, the switch control signal can be used for controlling the on or off of the correspondingly connected switch assembly 300, so that the driving control of one driving chip 200 on two or more control subareas 100 is realized.

In some embodiments, transmitting a switch control signal to the switch assembly to control the switching on or off of the switch assembly based on the LED driving command includes:

and adjusting the duty ratio of the conducting signals provided for different switch assemblies based on the LED driving instruction, wherein the time periods of the conducting signals received by different switch assemblies are not overlapped.

Based on the LED driving instruction, through the driver chip, to the LED transmission drive signal in the control subregion of the corresponding connection of switch module that opens, include:

based on the LED driving instruction, the same driving signal is transmitted to the LEDs in the control subareas correspondingly connected with the started switch assembly through the driving chip so as to control different control subareas to generate different brightness.

The duty ratios of the different switch assemblies 300 receiving the conducting signals may be adjusted to respectively adjust the duty ratio of the conducting signal in the first switch control signal L1 and the duty ratio of the conducting signal in the second switch control signal L2, for example, if the duty ratio of the conducting signal in the first switch control signal L1 is greater than the duty ratio of the conducting signal in the second switch control signal L2, in a case that the driving chip 200 provides the same driving current to the first control sub-area 110 and the second control sub-area 120, in a period of one driving signal, a duration of the conducting signal received by the first transistor T1 is greater than a duration of the conducting signal received by the second transistor T2, and then the brightness generated by the LEDs in the first control sub-area 110 is further greater than the brightness generated by the LEDs in the second control sub-area 120. It will be appreciated that the duty cycle of the turn-on signal received by the first transistor T1 in the driving signal cycle is greater than the duty cycle of the turn-on signal received by the second transistor T2 in the driving signal cycle, and thus the duration that the LEDs in the first control sub-section 110 are illuminated in the same driving signal cycle is greater than the duration that the LEDs in the second control sub-section 120 are illuminated.

In one period of the driving signal, the sum of the time lengths of the conducting signals received by the switch assemblies corresponding to the same driving chip is less than or equal to the half period of the driving signal.

Illustratively, referring to fig. 3, the on signal of the first switch control signal L1 has a duration t during one period of the driving signal₁The duration of the on signal of the second switch control signal L2 is t₂T shown in FIG. 3₀＝t₁+t₂. May be t in other embodiments₀＞t₁+t₂(ii) a If t is₁＝t₂If the on-signal duty ratio of the first switch control signal L1 is the same as the on-signal duty ratio of the second switch control signal L2, the brightness of the corresponding first control sub-area 110 is the same as the brightness of the corresponding second control sub-area 120; if t₁＞t₂If the on-signal duty cycle of the first switch control signal L1 is greater than the on-signal duty cycle of the second switch control signal L2, the brightness of the corresponding first control sub-area 110 is greater than the brightness of the corresponding second control sub-area 120; if t₁＜t₂Then the on-signal duty cycle of the first switch control signal L1 is smaller than the on-signal duty cycle of the second switch control signal L2, which corresponds to the brightness of the first control sub-section 110 being less than the same brightness of the second control sub-section 120. The duration of the on signal of the first switch control signal L1 is t₁The longer the period of the on signal of the second switch control signal L2 is t, the larger the duty ratio of the on signal in the first switch control signal L1 is₂The longer the on-duty ratio of the on-signal in the second switch control signal L2 is, the larger. Referring to fig. 3, the frequency of the first switch control signal L1, the frequency of the second switch control signal L2, and the frequency of the driving signal L0 are all the same.

According to the driving method of the lamp panel structure, under the condition that the size of the driving signal is unchanged, the brightness of different control subareas connected by the same driving chip is adjusted by adjusting the frequency of the control signal of the switch, so that the brightness of different control subareas can be flexibly controlled under the condition that one driving chip correspondingly drives two or more control subareas, the accuracy of subarea control of the lamp panel structure can be ensured, and the flexible adjustment of the subarea brightness of the lamp panel structure is ensured while the use quantity of the driving chips is reduced.

In some embodiments, transmitting a switch control signal to the switch assembly based on the LED driving command to control the switch assembly to be turned on or off includes:

transmitting the conducting signals to different switch assemblies based on the LED driving instruction, wherein the frequencies of the conducting signals received by different switch assemblies are the same;

based on LED drive instruction, through driver chip, to the LED transmission drive signal in the control subregion of the corresponding connection of switch module of opening, include:

based on the LED driving instruction, different driving signals are transmitted to LEDs in control subareas correspondingly connected with different started switch assemblies through a driving chip so as to control the different control subareas to generate different brightness, wherein the frequency of the driving signals is a multiple of the frequency of the switch control signals received by the corresponding switch assemblies.

For example, referring to fig. 2 and 4, the frequency of the first switch control signal L1 and the frequency of the second switch control signal L2 may be the same, and the frequency of the driving signal may be 2 times the frequency of the first switch control signal L1. Illustratively, one driving chip is correspondingly connected with several control subareas, and the driving signal is several times of the frequency of the switching control signal. However, in different periods of the driving signal L0, the amplitude of the driving signal may be set to be different, and the amplitude of the driving signal is different, which represents that the magnitude of the driving signal is different, specifically, the magnitude of the driving current is different or the magnitude of the built-in resistor of the driving chip is different. As shown in fig. 4, if the amplitude of the driving signal in the duration of the on signal in the second switch control signal L2 is greater than the amplitude of the driving signal in the duration of the on signal in the first switch control signal L1, the brightness in different control sub-areas can be controlled in a time-sharing manner by the magnitude of the driving signal. It should be noted that, when the driving signal represents the driving current, the larger the driving signal is, the larger the brightness of the corresponding control partition is; the driving signal represents that under the condition that the driving signal represents the resistance in the LED loop controlled by the driving chip, the larger the driving signal is, the larger the resistance in the LED loop is, the smaller the current in the LED loop is, and the smaller the brightness of the corresponding control subarea is; the above description is illustrative, and not intended to be a specific limitation on the embodiments of the present application. As shown in figure 4 of the drawings,t₀＝t₁＝t₂the frequency of L0 is 2 times the frequency of L1, and the frequency of L1 is the same as the frequency of L2. It should be noted that both the frequency of the driving signal and the frequency of the switching control signal need to be greater than 24HZ, so that the human eye cannot recognize the flickering of the LED.

According to the driving method of the lamp panel structure, the driving chips are controlled to provide driving signals for different control subareas, the different control subareas are controlled to emit different brightness, the brightness of the different control subareas can be flexibly controlled under the condition that one driving chip correspondingly drives two or more control subareas, the accuracy of subarea control of the lamp panel structure can be guaranteed, and the flexible adjustment of the brightness of the lamp panel structure subareas is guaranteed while the using number of the driving chips is reduced.

In some embodiments, the drive signals include address signals; step S201 may include:

transmitting an addressing signal to the addressing pin based on the LED driving instruction so as to transmit the addressing signal to the output pin through the driving chip; after the transmission of the addressing signal is finished, the addressing pin and the output pin are controlled to be disconnected, and the output pin and the grounding pin are controlled to be connected, so that the LEDs of the control partitions corresponding to the addressing signal respectively form a loop with the anode signal line and the grounding signal line, and the LEDs are lightened.

Illustratively, as shown in fig. 5, a continuously constant voltage signal is transmitted on the positive signal line VLED, which provides a constant positive voltage to the positive pole P of the LED. The time controller 400 transmits a first switch control signal L1 to the first transistor T1, the time controller 400 transmits a second switch control signal L2 to the second transistor T2, the addressing pin DI receives an addressing signal, the addressing signal includes address information of a control partition to be lit, the addressing pin DI is communicated with the output pin OUT in the driving chip 200, after the addressing signal is transmitted, the output pin OUT and the ground pin GND are controlled in the driving chip 200 to be conducted, so that the negative electrodes N of the LEDs in the corresponding control partition are connected to the ground signal line GND, the LEDs in the control partition form a loop with the positive electrode signal line VLED and the ground signal line GND through the driving chip 200, and the LEDs can be lit. The address of the corresponding control partition in the addressing signal corresponds to the switch control signal.

For example, when the driving chip 200 is initialized, the driving chip 200 receives a string of addressing signals to determine to control the partition to be turned on or off, and after receiving the addressing signals, the driving chip 200 controls the output pin OUT to realize whether the partition forms a loop or not to drive the LED to emit light; the addressing signal needs to be asserted again each time a refresh is performed. When the addressing signal is input, the addressing pin DI and the output pin OUT transmit the addressing signal through the interior of the driving chip 200, the connection between the addressing pin DI and the output pin OUT is disconnected after the addressing information is finished, and the connection and disconnection between the output pin OUT and the grounding pin GND can control the connection and disconnection of the LED lighting circuit.

In a third aspect of the embodiments of the present application, a drive controller is provided, and fig. 8 is a schematic structural block diagram of the drive controller provided in the embodiments of the present application. As shown in fig. 8, a drive controller provided in an embodiment of the present application includes:

a memory 901, the memory 901 storing therein a computer program;

the processor 902 is configured to implement the driving method of the lamp panel structure according to the second aspect when the processor 902 executes the computer program.

In a fourth aspect of the embodiments of the present application, a display device is provided, and fig. 9 is a schematic structural block diagram of the display device provided in the embodiments of the present application. As shown in fig. 9, a display device provided in an embodiment of the present application includes: according to the lamp panel structure 1000 of the first aspect, the lamp panel structure 1000 serves as a display panel, or the lamp panel structure 1000 serves as a backlight. The display device may further comprise a drive controller 2000 as described in the third aspect.

It should be noted that the lamp panel structure 1000 may be used for illumination, as a backlight source of a liquid crystal display panel, or directly for display, and the embodiment of the present application is not particularly limited.

The display device provided in the embodiment of the present application may be a smart phone, a tablet computer, a notebook computer, a television, or other displays, and the embodiment of the present application is not particularly limited.

It should be noted that, in the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to relevant descriptions of other embodiments for parts that are not described in detail in a certain embodiment.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-readable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The embodiment of the present application further provides a computer program product, where the computer program product includes computer software instructions, and when the computer software instructions are run on a processing device, the processing device is enabled to execute the flow of the driving method of the lamp panel structure.

The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. A computer-readable storage medium may be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus, device and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

While the preferred embodiments of the present specification have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all changes and modifications that fall within the scope of the specification.

It will be apparent to those skilled in the art that various changes and modifications can be made in the present specification without departing from the spirit and scope of the specification. Thus, if such modifications and variations of the present specification fall within the scope of the claims of the present specification and their equivalents, the specification is intended to include such modifications and variations.

Claims

1. The utility model provides a lamp plate structure, its characterized in that includes:

2. The lamp panel structure of claim 1, further comprising:

a time controller to provide the switch control signal to the switch assembly.

3. The lamp panel structure of claim 2, wherein the switch control signal comprises a turn-on signal;

4. The lamp panel structure of claim 2, wherein the driving chip is configured to provide driving signals to the LEDs in the control partitions connected correspondingly;

5. The lamp panel structure of claim 4, wherein the switch control signal and the driving signal are both square wave signals;

6. The lamp panel structure of claim 2, wherein the driving chip is configured to provide different driving signals to the LEDs in the control partitions connected correspondingly, so as to control different control partitions to generate different brightness.

7. The lamp panel structure of claim 6, wherein the switch control signal and the driving signal are both square wave signals, and a frequency of the driving signal is a multiple of a frequency of the switch control signal received by the corresponding switch assembly.

8. A lamp panel structure according to claim 1, wherein the switch assembly comprises at least one switching device and/or at least one capacitor.

9. The lamp panel structure of claim 8, wherein the switching device comprises a thin film transistor.

10. The lamp panel structure of claim 1, further comprising:

the LEDs in the same control partition are connected in series or in parallel through the lamp bead binding structures, and the LEDs are electrically connected with the driving chip through the lamp bead binding structures and the chip binding structures.

11. The lamp panel structure of claim 10, wherein the backplane comprises a substrate layer;

the chip binding structure comprises a second conducting layer and a second binding layer which are electrically connected, the second conducting layer is arranged between the second binding layer and the substrate layer, and the second binding layer is used for binding the driving chip;

12. The lamp panel structure of claim 11, wherein the switch assembly includes a gate, a source, and a drain;

the drive binding structure comprises an output pin, a grounding pin, an addressing pin and a power supply pin, wherein the grounding pin is electrically connected with the output pin through the drive chip, and the addressing pin is electrically connected with the output pin through the drive chip;

13. A driving method of a lamp panel structure, applied to the lamp panel structure of any one of claims 1 to 12, the driving method comprising:

receiving an LED driving instruction;

14. The method for driving a lamp panel structure according to claim 13, wherein the controlling, based on the LED driving command, the switching on or off of the switch assembly so as to drive, by using a same driving chip, LEDs in at least two control partitions electrically connected to the same driving chip includes:

transmitting a switch control signal to the switch assembly based on the LED driving instruction to control the switch assembly to be turned on or turned off, wherein the switch assembly is turned on to conduct a path between the control partition and the driving chip which are correspondingly connected, and the switch assembly is turned off to disconnect the path between the control partition and the driving chip which are correspondingly connected;

15. The method for driving a lamp panel structure according to claim 14, wherein the switch control signal includes a turn-on signal, and the turn-on signal is used for controlling the switch assembly to be turned on;

16. The method for driving a lamp panel structure according to claim 14, wherein the transmitting a switch control signal to the switch assembly based on the LED driving command to control the switch assembly to be turned on or off includes:

and transmitting the same driving signal to the LEDs in the control subareas correspondingly connected with the switched-on switching components through the driving chips based on the LED driving instruction so as to control different control subareas to generate different brightness, wherein in one period of the driving signal, the sum of the time lengths of the conducting signals received by the switching components corresponding to the same driving chip is less than or equal to the half period of the driving signal.

17. The method for driving a lamp panel structure according to claim 14, wherein the transmitting a switch control signal to the switch assembly based on the LED driving command to control on or off of the switch assembly includes:

18. The method for driving a lamp panel structure according to claim 14, wherein the driving signal includes an addressing signal;

19. A drive controller, comprising:

a memory having a computer program stored therein;

a processor for implementing the method of driving a lamp panel structure of any one of claims 13-18 when executing the computer program.

20. A display device, comprising:

the lamp panel structure of any one of claims 1-12, the lamp panel structure acting as a display panel, or the lamp panel structure acting as a backlight; and/or the presence of a gas in the atmosphere,

the drive controller of claim 19.