CN114758627B

CN114758627B - Lamp panel structure, driving method and related equipment

Info

Publication number: CN114758627B
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: 2024-03-26
Anticipated expiration: 2042-04-24
Also published as: CN114758627A

Abstract

The application discloses a lamp panel structure, a driving method and related equipment, relates to the technical field of microelectronics, and 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. A lamp plate structure comprising: a plurality of LEDs divided into at least two control zones, each control zone comprising at least two LEDs; the driving chips are electrically connected with LEDs in at least two control partitions; the switch assembly is respectively arranged between the driving chip and each control partition correspondingly connected with the driving chip, and is used for receiving a switch control signal, and the switch control signal is used for controlling the connection and disconnection of the control partition correspondingly connected with the switch assembly and the passage of the driving chip.

Description

Lamp panel structure, driving method and related equipment

Technical Field

The present disclosure relates to the field of microelectronics technologies, and in particular, to a lamp panel structure, a driving method, and related devices.

Background

At present, an existing lamp panel is usually driven and controlled by a driving chip in one partition, so that the partition driving of the lamp panel is realized, the flexible control of different brightness of different partitions can be realized, and the purpose of fine control is achieved. However, in the application scenario of higher partition control resolution, the driving method can increase the number of driving chips, the space occupied by the driving chips for the lamp panel becomes larger, and the cost of the lamp panel increases.

Disclosure of Invention

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

In a first aspect of embodiments of the present application, there is provided a lamp panel structure, including:

a plurality of LEDs divided into at least two control zones, each control zone comprising at least two LEDs;

the driving chip is electrically connected with the LEDs in the at least two control partitions;

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

In some embodiments, the lamp panel structure further comprises:

and a time controller for providing 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 conduction signals for all the switch assemblies correspondingly connected with the same driving chip; or alternatively, the first and second heat exchangers may be,

the time controller is used for simultaneously providing the conduction signals for the switch assemblies of the parts correspondingly connected with the same driving chip.

In some embodiments, the driving chip is used for providing driving signals to the LEDs in the control partition correspondingly connected;

and under the condition that the driving signals provided by the same driving chip are unchanged, the time controller is used for controlling different control partitions to generate different brightnesses by adjusting the duty ratios of the on signals provided to different switch assemblies, wherein the time periods of the on signals received by the 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;

and 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 smaller 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 LEDs in the control partitions correspondingly connected to control different brightness generated by different control partitions.

In some embodiments, the switching 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 switching control signal received by the corresponding switching assembly.

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

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

In some embodiments, the lamp panel structure further comprises:

the back plate comprises a lamp area and a driving area, a lamp bead binding structure is arranged in the lamp area, the LEDs are 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 structure;

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

In some embodiments, the backsheet comprises a substrate layer;

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

the chip binding structure comprises a second conductive layer and a second binding layer which are electrically connected, wherein 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 on the same layer, and the first binding layer and the second binding layer are arranged on the same layer.

In some embodiments, the switching component includes 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 an anode pin and a cathode pin, wherein the cathode 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 backboard further comprises an anode signal wire, a power supply signal wire and a grounding signal wire, wherein the anode signal wire is electrically connected with at least one anode pin in each control partition, the power supply signal wire is electrically connected with the power supply pin, and the grounding signal wire is electrically connected with the grounding pin.

In a second aspect of embodiments of the present application, a driving method of a lamp panel structure is provided, which is applied to the lamp panel structure according to the first aspect, and the driving method includes:

receiving an LED driving instruction;

and on the basis of the LED driving instruction, controlling the switch assembly to be turned on or turned off so as to drive the LEDs in at least two control partitions which are electrically connected with the corresponding LEDs through the same driving chip.

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

transmitting a switch control signal to the switch assembly based on the LED driving instruction so as to control the switch assembly to be turned on or turned off, wherein the on of the switch assembly is used for conducting the corresponding connected control partition and the driving chip, and the off of the switch assembly is used for disconnecting the corresponding connected control partition and the driving chip;

And transmitting a driving signal to the LEDs in the control partition correspondingly connected with the on switch assembly 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 opening of the switch assembly;

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:

providing the conduction signals to all the switch assemblies correspondingly connected with the same driving chip based on the LED driving instruction; or alternatively, the first and second heat exchangers may be,

and providing the conduction signal to the 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 based on the LED driving instruction to control the on or off of the switch assembly includes:

adjusting duty cycles of the on signals provided to different ones of the switching components based on the LED driving instructions, wherein time periods of the on signals received by the different ones of the switching components do not overlap;

Based on the LED driving instruction, transmitting, by the driving chip, a driving signal to the LED in the control partition to which the on switch assembly is correspondingly connected, including:

based on the LED driving instruction, the same driving signal is transmitted to the LEDs in the control partitions correspondingly connected with the on switch assembly through the driving chip, so that different control partitions are controlled to generate different brightness, and the sum of the duration of the on signals received by the switch assemblies corresponding to the same driving chip is smaller than or equal to the half period of the driving signal in one period of the driving signal.

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

Based on the LED driving instructions, different driving signals are transmitted to the LEDs in the control partitions correspondingly connected with different on switch assemblies through the driving chips so as to control the different control partitions 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 signals include addressing signals;

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 signals is completed, the addressing pins are controlled to be disconnected from the output pins, and the output pins are controlled to be conducted with the grounding pins, so that the LEDs of the control partition corresponding to the addressing signals form loops with the positive signal line and the grounding signal line respectively, and the LEDs are lightened.

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

a memory in which a computer program is stored;

a processor for implementing the driving method of the lamp panel structure according to the second aspect when executing the computer program.

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

the lamp panel structure of the first aspect, which is a display panel, or which is a backlight; and/or the number of the groups of groups,

the drive controller according to the third aspect.

According to the lamp panel structure, the driving method and the related equipment, the switch control signals are arranged to control the switch assembly to be turned on or off, so that the control partition correspondingly connected with the switch assembly is controlled to be connected with the passage of the driving chip and the passage of the driving chip to be disconnected, at least two control partitions can be controlled by one driving chip at the same time or in a time-sharing mode, the use quantity of the driving chip can be reduced on the basis that the control resolution of the lamp panel structure is not affected, and the cost is greatly reduced. In addition, the number of the driving chips is reduced, the occupied space of the driving chips can be reduced, the occupied space of the LEDs of the lamp panel structure can be increased, and the frame is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a lamp panel structure according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of another lamp panel structure according to an embodiment of the present disclosure;

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

FIG. 4 is a schematic diagram illustrating a driving timing sequence of another lamp panel structure according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of another lamp panel structure according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of a partial cross-sectional structure of a lamp panel structure according to an embodiment of the present disclosure;

FIG. 7 is a schematic flow chart of a driving method of a lamp panel structure according to an embodiment of the present disclosure;

FIG. 8 is a schematic block diagram of a driving controller according to an embodiment of the present application;

fig. 9 is a schematic 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 following detailed description of the technical solutions of the embodiments of the present specification is made through the accompanying drawings and the specific embodiments, and it should be understood that the specific features of the embodiments of the present specification are detailed descriptions of the technical solutions of the embodiments of the present specification, and not limit the technical solutions of the present specification, and the technical features of the embodiments 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. The term "two or more" includes two or more cases.

In view of this, the 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.

In a first aspect of the embodiments of the present application, a lamp panel structure is provided, and fig. 1 is a schematic structural diagram of the lamp panel structure provided in the embodiments of the present application. As shown in fig. 1, a lamp panel structure provided in an embodiment of the present application includes: a plurality of LEDs, the plurality of LEDs being divided into at least two control zones 100, each control zone 100 comprising at least two LEDs; a driving chip 200, at least one driving chip 200 being electrically connected to the LEDs in at least two control zones 100; the switch assembly 300, the switch assembly 300 is respectively disposed between the driving chip 200 and each control partition 100 correspondingly connected to the driving chip 200. The number of driver chips 200, the number of LEDs, and the number of switch assemblies 300 shown in fig. 1 are all schematic, and different numbers of LEDs, driver chips 200, and control zones 100 may be provided depending on the area and resolution of the lamp panel structure, e.g., the higher the control resolution of the lamp panel structure, the higher the density of the control zones. The switch assemblies 300 may be in one-to-one correspondence with the control partitions 100, and the driving chips 200 may be in one-to-two or one-to-many correspondence with the control partitions 100. The opening of the switch assembly 300 can conduct the passage between the driving chip 200 and the corresponding connected control partition 100, and the driving chip 200 can drive the LED in the corresponding control partition 100 to be lightened; closing of the switch assembly 300 may disconnect the drive chip 200 from the corresponding connected control partition 100, and the LEDs within the corresponding control partition 100 cannot be illuminated. The switch assembly 300 is configured to receive a switch control signal, where the switch control signal is configured to control on and off of a path of the driving chip 200 and the control partition 100 correspondingly connected to the switch assembly 300. The switch control signal may be from the driving chip 200, and the switch control signal may also be from a separately provided control chip, such as a T-Con IC (time control chip) or an FPGA (Field Programmable Gate Array ), which is not specifically limited in the embodiments of the present application.

It should be noted that, the driving chip 200 may drive the LEDs to light, and the LEDs in the lamp panel structure may be lighted for illumination, as a backlight source of the liquid crystal display panel, or directly used for display, which is not limited in particular. The at least two LEDs within each control zone 100 may be connected in parallel, in series, or in a series-parallel mixture with each other, as the application is not specifically limited.

As shown in fig. 1, one driving chip 200 is correspondingly connected to two switch assemblies 300, that is, one driving chip 200 correspondingly controls LEDs in two control partitions 100, and the lighting states of all LEDs in each control partition 100 are consistent. One driving chip 200 may time-divisionally control the lighting states of the LEDs in the two control partitions 100, one driving chip 200 may also simultaneously control the lighting states of the LEDs in the two control partitions 100, and it may be realized that one driving chip 200 drives the two control partitions 100. Fig. 1 is merely illustrative, and one driving chip 200 may also drive a plurality of control partitions 100. As shown in fig. 1, the LEDs in the control partition 100 are connected in series, the positive electrode at one end of the LED connected in series is electrically connected to the positive electrode signal line VLED, the negative electrode at the other end of the LED connected in series 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 circuit, so that the LEDs in the control partition 100 corresponding to the turned-on switch assembly 300 can be turned on, thereby realizing the partition control of the control partition 100 by the driving chip 200.

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 may be employed. The LEDs may be structures scaled down to the order of hundred microns in size, e.g., the area of the light emitting diode's light emitting region is 1mm ² Below, or selected to be 10000 μm ² Further, the thickness may be 3000. Mu.m ² Hereinafter, the thickness is further 700. Mu.m ² Below, it may even be 200 μm ² Hereinafter, the examples of the present application are not particularly limited.

It should be noted that, generally, one control partition uses one IC (driving chip) to control, so as to achieve the purpose of fine control, but at the same time, the cost caused by excessive use of the IC is increased, the occupied space of the driving chip is increased, and the frame of the lamp panel structure is increased.

To the above-mentioned problem, the lamp panel structure that this application embodiment provided through setting up a driving chip 200 and connecting at least two control subregions 100, realizes switching on or disconnection through opening or closing of switch assembly 300 between driving chip 200 and the control subregion 100 of connection, can realize that a driving chip 200 controls at least two control subregions 100, can reduce driving chip 200's use quantity on the basis that does not influence lamp panel structure's control resolution, reduce cost by a wide margin. 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 LEDs 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.

The switch assembly 300 may have only one TFT (thin film transistor), and may be 7T1C (7 TFTs, 1 capacitor), 2T1C (2 TFTs, 1 capacitor), or 1T1C (1 TFT,1 capacitor), which is not particularly limited in the embodiment. The structure of one TFT occupies a small space and has low cost. The structure of 7T1C, 2T1C or 1T1C can realize current compensation among devices according to a specific circuit structure, can avoid the influence of TFT on the performance of the switch assembly 300 due to the electric drift generated along with the accumulation of the service time, can improve the service life of the switch assembly 300, and further ensures the effective driving of LEDs.

Fig. 2 is a schematic structural diagram of another lamp panel structure according to an embodiment of the present application. As shown in fig. 2, the switch assembly 300 includes a TFT, and a driving chip 200 is correspondingly connected to a first transistor T1 and a second transistor T2, wherein the first transistor T1 is correspondingly connected to the first control partition 110, and the second transistor T2 is correspondingly connected to the second control partition 120. The first switch control signal L1 is used for controlling the first transistor T1 to be turned on or off, and the second switch control signal L2 is used for controlling 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 separately, or turned off separately. The gates of the first transistor T1 and the second transistor T2 are used for receiving the first switch control signal L1 and the second switch control signal L2, respectively, one of the source and the drain is used for connecting the LED, and the other of the source and the drain is connected to the driving chip 200.

The lamp panel structure provided by the embodiment of the application adopts the thin film transistor as a component device of the switch assembly, and the switch assembly capable of accurately controlling the switch state can be obtained by utilizing the maturation process and the excellent switch performance of the thin film transistor, so that the two or more control subareas driven by one driving chip can be realized, the use quantity of the driving chip is saved, and the cost is reduced.

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

In some embodiments, the switch control signals may include an on signal that may control the switch assembly 300 to be turned on and an off signal that may control the switch assembly 300 to be turned off. Illustratively, the switch control signal may be characterized by a binary code, the on signal is characterized by a 1, and the off signal is characterized by a 0. The time controller may be used to simultaneously provide the on signal to all the switch assemblies 300 correspondingly connected to the same driving chip 200; alternatively, the time controller may be used to simultaneously provide the turn-on signal to the partial switch assemblies 300 correspondingly connected to the same driving chip 200.

For example, as shown in fig. 2, at the same time, the switch control signal may be l1=1, l2=1, i.e., the switch control signal is (1, 1), and then both the first transistor T1 and the second transistor T2 are turned on, and one driving chip 200 may simultaneously drive the LEDs in the two control partitions 100 to light. The switch control signal may also be (1, 0), (0, 1) or (0, 0), (1, 0), where the driving chip 200 drives the first control partition 110 to light at the same time, and the second control partition 120 does not light; (0, 1) corresponds to a driving chip 200 driving the first control partition 110 to be not lighted at the same time, and the second control partition 120 to be lighted; (0, 0) corresponds to one driving chip 200 driving neither the first control partition 110 nor the second control partition 120 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 represented by being integrated in a code corresponding to one switch control signal.

The lamp panel structure provided in the embodiment of the present application may control the on or off of the correspondingly connected switch assembly 300 by using the switch control signal provided by the time controller, so as to implement the driving control of one driving chip 200 to two or more control partitions 100.

In some embodiments, the drive chip is configured to provide a drive signal to the LEDs within the corresponding connected control zone, which may be provided in the form of a drive current, for example. In the case that the driving signals provided by the same driving chip 200 are unchanged, the time controller is configured to control different control partitions 100 to generate different brightnesses by adjusting the duty ratios of the on signals provided to different switch assemblies 300, where the time periods of the on signals received by different switch assemblies 300 corresponding to the same driving chip 200 do not overlap. The switch control signal and the driving signal may both be in the form of square wave signals, and when the pulse amplitude of the driving signal is unchanged, that is, when the driving current provided by the same driving chip 200 to two or more control partitions 100 correspondingly connected is unchanged, the duty ratio of the on signal corresponding to different switch assemblies 300 is adjusted in the switch control signal, so that different brightness of the control partitions 100 corresponding to different switch assemblies 300 can be achieved.

Illustratively, as shown in fig. 2, the first switch control signal L1 and the second switch control signal L2 are square wave signals. The on signal in the first switch control signal L1 and the second switch control signal L2 may be characterized by a high level of the square wave signal and the off signal by a low level. It should be noted that, by using the control of the square wave signal to the switch assembly 300, the switch assembly 300 can be switched on and off alternately at the corresponding frequency, and further, the LEDs in the corresponding control partition 100 are controlled to be switched on and off alternately at the corresponding frequency, and the frequency of the square wave signal can be controlled to be greater than 24HZ, so that the human eye cannot distinguish the switching on and off of the LEDs, and the macroscopic image seen by the human eye is the continuous lighting state of the LEDs. The driving of the LED in the control partition 100 by the driving chip 200 mainly provides a conductive loop for the LED, and controls the current in the conductive loop of the LED, that is, the driving current, so as to realize the driving of the LED. Adjustment of the drive current may be achieved by adjusting the corresponding resistance within the drive chip 200, which changes in resistance bring about changes in the current flowing through the LED loop.

By adjusting the duty ratio of the on signal received by the different switch assemblies 300, the duty ratio of the on signal in the first switch control signal L1 and the duty ratio of the on signal in the second switch control signal L2 can be adjusted respectively, for example, by adjusting the duty ratio of the on signal in the first switch control signal L1 to be greater than the duty ratio of the on signal in the second switch control signal L2, when the driving chip 200 provides the same driving current to the first control partition 110 and the second control partition 120, in a period of one driving signal, the duration of the on signal received by the first transistor T1 is longer than the duration of the on signal received by the second transistor T2, and then the brightness generated by the LEDs in the first control partition 110 is further greater than the brightness generated by the LEDs in the second control partition 120. It will be understood that, if the duty cycle of the on signal received by the first transistor T1 in the driving signal period is greater than the duty cycle of the on signal received by the second transistor T2 in the driving signal period, the duration of the LED in the first control partition 110 being turned on is greater than the duration of the LED in the second control partition 120 in the same driving signal period.

In one period of the driving signal, the sum of the duration of the conducting signals received by the switch components corresponding to the same driving chip is smaller than or equal to the half period of the driving signal.

Fig. 3 is a schematic diagram illustrating a driving timing sequence of a lamp panel structure according to an embodiment of the present application. As shown in fig. 3, the abscissa of the timing chart shown in fig. 3 is time, the ordinate is the square wave signal amplitude V, and the half period of the driving signal L0 is t ₀ The duration of the on signal of the first switch control signal L1 is t in one period of the driving signal ₁ The duration of the on signal of the second switch control signal L2 is t ₂ T shown in FIG. 3 ₀ ＝t ₁ +t ₂ . May be t in other embodiments ₀ ＞t ₁ +t ₂ The method comprises the steps of carrying out a first treatment on the surface of the If t ₁ ＝t ₂ 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, and the brightness of the corresponding first control partition 110 is the same as the brightness of the second control partition 120; if t ₁ ＞t ₂ The duty ratio of the on signal of the first switch control signal L1 is larger than that of the second switch control signal L2, corresponding to the brightness of the first control partition 110The degree is greater than the brightness of the second control partition 120; if t ₁ ＜t ₂ The on signal duty ratio of the first switch control signal L1 is smaller than the on signal duty ratio of the second switch control signal L2, and the brightness of the corresponding first control partition 110 is smaller than the brightness of the second control partition 120. The duration of the on signal of the first switch control signal L1 is t ₁ The longer the duty ratio of the on signal in the first switch control signal L1 is, the longer the on signal of the second switch control signal L2 is, the time length of the on signal is t ₂ The longer the 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 switching control signal L1, the frequency of the second switching control signal L2, and the frequency of the driving signal L0 are the same.

The embodiment of the application provides a lamp plate structure, under the unchangeable condition of drive signal size, through the frequency of adjusting switch control signal, adjust the luminance of the different control subregions that same driver chip connects, can realize under the condition that a driver chip corresponds two or a plurality of control subregions of drive, realize nimble control different control subregions's luminance, can guarantee the accuracy 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 driving chip is used for providing different driving signals to the LEDs in the corresponding connected control partitions so as to control different control partitions to generate different brightness. The switching control signal and the driving signal are square wave signals, and the frequency of the driving signal is a multiple of the frequency of the switching control signal received by the corresponding switching assembly.

Fig. 4 is a schematic diagram illustrating driving timing of another lamp panel structure according to an embodiment of the present application. Referring to fig. 2 and 4, the frequency of the first switching control signal L1 and the frequency of the second switching control signal L2 may be the same, and the frequency of the driving signal may be 2 times the frequency of the first switching control signal L1. For example, one driving chip is correspondingly connected with a plurality of control partitions, and the driving signal is several times of the frequency of the switching control signal. However, at different periods of the drive signal L0In the period, the amplitude of the driving signal can be set to be different, the amplitude of the driving signal is different, the driving signal is represented to be different in size, and specifically, the driving current is different in size or the built-in resistor of the driving chip is different in size. As shown in fig. 4, 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, so that the brightness in different control partitions can be controlled by time-sharing 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 chip controls the resistor in the LED loop, the larger the driving signal is, the larger the resistor in the LED loop is, the smaller the current in the LED loop is, and the smaller the brightness of the corresponding control partition is; the above are illustrative and are not intended to be a specific limitation on the embodiments of the present application. Shown in FIG. 4, t ₀ ＝t ₁ ＝t ₂ The 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, the frequency of the driving signal and the frequency of the switching control signal are both required to be greater than 24HZ, so that the human eye cannot recognize the flicker of the LED.

The embodiment of the application provides a lamp plate structure, the size control different control subregions of drive signal that provides different control subregions through control drive chip sends different luminance, can realize controlling different control subregions's luminance in a flexible way under the condition that a drive chip corresponds two or more control subregions of drive, can guarantee the accuracy of the subregion control of lamp plate structure, guarantees the nimble adjustment of lamp plate structure subregion luminance when reducing drive chip use quantity.

In some embodiments, the lamp panel structure provided in the embodiments of the present application further includes: the back plate comprises a lamp area and a driving area, a lamp bead binding structure is arranged in the lamp area, the LEDs are 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 chip binding; the LEDs in the same control partition are connected in series or in parallel through the lamp bead binding structure, and the LEDs are electrically connected with the driving chip through the lamp bead binding structure and the chip binding structure. The embodiment of the application provides a lamp panel structure, can bind LED and driving chip on the backplate through the binding structure that corresponds, through setting up corresponding binding structure and connecting wire on the backplate, realize being connected between LED and driving 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 may be fabricated directly on the back plate using a thin film process.

Fig. 5 is a schematic structural diagram of another lamp panel structure according to an embodiment of the present application. As shown in fig. 5, the anodes P and the cathodes N of the 4 LEDs in the control partition are connected end to form a serial structure, and in the first control partition 110, the anodes P of one end of the serial LED lamp string are connected to the anode signal line VLED, and the cathodes N of the other end of the lamp string are electrically connected to the source or 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 of a lamp panel structure according to an embodiment of the present application. Fig. 6 illustrates a partial cross-sectional structure of a binding region of an LED1, a binding region of an LED2, a first transistor T1 electrically connected to the LED1, a second transistor T2 electrically connected to the LED2, and a corresponding binding region of the same driving chip, where the LED1 and the LED2 are respectively located in different control partitions, the LED1 belongs to a first control partition 110, and the LED2 belongs to a second control partition 120. Referring to fig. 5 and 6, the back plate includes a substrate layer 500; the light bead binding structure 600 includes a first conductive layer 610 and a first binding layer 620 that are electrically connected, the first conductive layer 610 is disposed between the first binding layer 620 and the substrate layer 500, and the first binding layer 620 is used for binding the LEDs; the chip bonding structure 700 includes a second conductive layer 710 and a second bonding layer 720 that are electrically connected, the second conductive layer 710 being disposed between the second bonding layer 720 and the substrate layer 500, the second bonding layer 720 being used for bonding the driving chip 200; the first conductive layer 610 and the second conductive layer 710 are disposed in layers, and the first bonding layer 620 and the second bonding layer 720 are disposed in layers. The first conductive layer 610, the second conductive layer 710, the first binding layer 620 and the second binding layer 720 can be prepared from 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 binding of corresponding pins of the LED and the driving chip is facilitated. A space between the substrate layer and the first conductive layer 610 may be provided in the buffer layer 501, and the buffer layer 501 may isolate impurity ions and the like in the substrate layer 500.

As shown in fig. 6, the switch assembly 300 includes a gate G, a source S and a drain D, which are all disposed on the same layer as the first conductive layer 610. The material of the grid electrode G can also be copper, and the conductivity of the copper is better. A semiconductor layer 802 is arranged between the gate electrode G and the source electrode S and the drain electrode D, a gate insulating layer 801 is arranged between the gate electrode G and the semiconductor layer 802, a passivation layer 803 and a flat layer 804 are further arranged on one side, far away from the substrate layer 500, of the source electrode S and the drain electrode D in sequence, the passivation layer 803 can be used for isolating water and oxygen, protecting a metal layer and a device structure, and the flat layer 804 can flatten the surface of the backboard.

Referring 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 light bead binding structure 600 includes a positive electrode pin LP and a negative electrode pin LN, where the positive electrode pin LP is bound to the positive electrode P of the LED, and the negative electrode pin LN is bound to the negative electrode N of the LED. The negative electrode lead LN corresponding to at least one LED in each control zone is electrically connected with the source electrode S, and the drain electrode D is electrically connected with the output lead OUT; the backboard 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 a 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 for supplying power to the driving chip 200, and the ground signal line gnd is grounded.

For example, as shown in fig. 5, a constant voltage signal is transmitted on the positive electrode signal line VLED, and the positive electrode signal line VLED may provide a constant positive voltage to the positive electrode 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 the addressing signal, address information of a control partition to be lightened is included in the addressing signal, the addressing pin DI is controlled to be communicated with the output pin OUT in the driving chip 200, after the addressing signal transmission is completed, the output pin OUT is controlled to be conducted with the grounding pin GND in the driving chip 200, the negative electrode N of an LED in the corresponding control partition is connected to the grounding signal line GND, the LED in the control partition forms a loop with the positive electrode signal line VLED and the grounding signal line GND through the driving chip 200, and the LED can be lightened. The address of the corresponding control partition in the addressing signal corresponds to the switch control signal.

For example, during the initialization of the driving chip 200, the driving chip 200 receives a series of addressing signals to determine the opening and closing of the control partition, and after receiving the signals, the driving chip 200 controls the output pin OUT to realize whether the control partition forms a loop or not so as to drive the LED to emit light; the addressing signal needs to be reassigned every refresh. When an addressing signal is input, the addressing pin DI and the output pin OUT transmit the addressing signal through 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 on-off of the output pin OUT and the ground pin GND can control the on-off of an LED lighting loop.

In a second aspect of the embodiments of the present application, a driving method of 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 of the lamp panel structure provided in the embodiments of the present application. As shown in fig. 7, the driving method includes:

s101: and receiving an LED driving instruction. The LED driving instructions may be issued by the host control system, and the LED driving instructions may include a sequence of instructions for controlling the switch assembly, and a sequence of instructions for controlling the driving chip.

S201: based on the LED driving instruction, the switch assembly is controlled to be turned on or off so as to drive the LEDs in at least two control partitions which are electrically connected with the corresponding LEDs through the same driving chip.

Referring to fig. 1, each control division 100 includes at least two LEDs, each driving chip 200 is electrically connected with the LEDs in the at least two control division 100, and a switching assembly 300 is respectively disposed between the driving chip 200 and each control division 100 to which the driving chip 200 is correspondingly connected. The switch assemblies 300 may be in one-to-one correspondence with the control partitions 100, and the driving chips 200 may be in one-to-two or one-to-many correspondence with the control partitions 100. The opening of the switch assembly 300 can conduct the passage between the driving chip 200 and the corresponding connected control partition 100, and the driving chip 200 can drive the LED in the corresponding control partition 100 to be lightened; closing of the switch assembly 300 may disconnect the drive chip 200 from the corresponding connected control partition 100, and the LEDs within the corresponding control partition 100 cannot be illuminated.

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

In some embodiments, step S201 may include:

based on the LED driving instruction, a switch control signal is transmitted 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 corresponding connected control partition and the driving chip, and the switch assembly is turned off to disconnect the corresponding connected control partition and the driving chip. The switch control signal may be a program code stored in the time controller, a program code burnt in the driving chip, or a motherboard control system generated in the motherboard control system and issued to the driving chip or the time controller. For example, the LED driving instruction may control the driving chip or the time controller to issue a switch control signal to the switch assembly, which is not limited in particular.

Based on the LED driving instruction, driving signals are transmitted to the LEDs in the control partition correspondingly connected with the on switch assembly through the driving chip so as to light the LEDs. The driving signal can control the communication between the output pin of the driving chip and the grounding pin, so that the lighting loop of the LED is conducted.

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

Based on the LED driving instruction, transmitting a switch control signal to the switch assembly to control on or off of the switch assembly, comprising:

based on the LED driving instruction, providing a conduction signal for all switch assemblies correspondingly connected with the same driving chip; or alternatively, the first and second heat exchangers may be,

based on the LED driving instruction, a conduction signal is provided for a part of switch assemblies correspondingly connected with the same driving chip.

Illustratively, the switch control signal may be characterized by a binary code, the on signal is characterized by a 1, and the off signal is characterized by a 0. The time controller may be used to simultaneously provide the on signal to all the switch assemblies 300 correspondingly connected to the same driving chip 200; alternatively, the time controller may be used to simultaneously provide the turn-on signal to the partial switch assemblies 300 correspondingly connected to the same driving chip 200.

For example, referring to fig. 2, at the same time, the switching control signal may be l1=1, l2=1, i.e., the switching control signal is (1, 1), and then both the first transistor T1 and the second transistor T2 are turned on, and one driving chip 200 may simultaneously drive the LEDs in the two control partitions 100 to be lighted. The switch control signal may also be (1, 0), (0, 1) or (0, 0), (1, 0), where the driving chip 200 drives the first control partition 110 to light at the same time, and the second control partition 120 does not light; (0, 1) corresponds to a driving chip 200 driving the first control partition 110 to be not lighted at the same time, and the second control partition 120 to be lighted; (0, 0) corresponds to one driving chip 200 driving neither the first control partition 110 nor the second control partition 120 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 represented by being integrated 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 on/off of the correspondingly connected switch assembly 300 can be controlled by using the switch control signal, so that the driving control of one driving chip 200 to two or more control partitions 100 can be realized.

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

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

Based on the LED driving instruction, through driving the chip, transmit the drive signal to the LED in the control subregion that the switch assembly that opens corresponds to connect, include:

based on the LED driving instruction, the same driving signal is transmitted to the LEDs in the control partitions correspondingly connected with the on switch assembly through the driving chip, so that different brightness is controlled to be generated by different control partitions.

By adjusting the duty ratio of the on signal received by the different switch assemblies 300, the duty ratio of the on signal in the first switch control signal L1 and the duty ratio of the on signal in the second switch control signal L2 can be adjusted respectively, for example, by adjusting the duty ratio of the on signal in the first switch control signal L1 to be greater than the duty ratio of the on signal in the second switch control signal L2, when the driving chip 200 provides the same driving current to the first control partition 110 and the second control partition 120, in a period of one driving signal, the duration of the on signal received by the first transistor T1 is longer than the duration of the on signal received by the second transistor T2, and then the brightness generated by the LEDs in the first control partition 110 is further greater than the brightness generated by the LEDs in the second control partition 120. It will be understood that, if the duty cycle of the on signal received by the first transistor T1 in the driving signal period is greater than the duty cycle of the on signal received by the second transistor T2 in the driving signal period, the duration of the LED being turned on in the first control partition 110 is greater than the duration of the LED being turned on in the second control partition 120 in the same driving signal period.

Exemplary, referring to FIG. 3, the duration of the on signal of the first switch control signal L1 is t during one period of the driving signal ₁ The duration of the on signal of the second switch control signal L2 is t ₂ T shown in FIG. 3 ₀ ＝t ₁ +t ₂ . May be t in other embodiments ₀ ＞t ₁ +t ₂ The method comprises the steps of carrying out a first treatment on the surface of the If t ₁ ＝t ₂ The duty ratio of the on signal of the first switch control signal L1 is the same as that of the on signal of the second switch control signal L2, corresponding to the first control divisionThe brightness of the zone 110 is the same as the brightness of the second control zone 120; if t ₁ ＞t ₂ The on signal duty ratio of the first switch control signal L1 is greater than the on signal duty ratio of the second switch control signal L2, and the brightness of the first control partition 110 is greater than the brightness of the second control partition 120; if t ₁ ＜t ₂ The on signal duty ratio of the first switch control signal L1 is smaller than the on signal duty ratio of the second switch control signal L2, and the brightness of the corresponding first control partition 110 is smaller than the brightness of the second control partition 120. The duration of the on signal of the first switch control signal L1 is t ₁ The longer the duty ratio of the on signal in the first switch control signal L1 is, the longer the on signal of the second switch control signal L2 is, the time length of the on signal is t ₂ The longer the 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 switching control signal L1, the frequency of the second switching control signal L2, and the frequency of the driving signal L0 are 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 partitions connected with the same driving chip is adjusted by adjusting the frequency of the switch control signal, and therefore the brightness of the different control partitions can be flexibly controlled under the condition that one driving chip correspondingly drives two or more control partitions, the accuracy of partition control of the lamp panel structure can be guaranteed, and the flexible adjustment of the partition brightness of the lamp panel structure is guaranteed 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 instruction to control on or off of the switch assembly includes:

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

Based on LED drive instruction, through driving the chip, transmit drive signal to the LED in the control subregion that the switch module that opens corresponds the connection, include:

based on the LED driving instruction, different driving signals are transmitted to LEDs in the control partitions correspondingly connected with different on switch assemblies through the driving chip so as to control the different control partitions 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 switching control signal L1 and the frequency of the second switching control signal L2 may be the same, and the frequency of the driving signal may be 2 times the frequency of the first switching control signal L1. For example, one driving chip is correspondingly connected with a plurality of control partitions, 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, the amplitude of the driving signal may be different, which represents that the magnitude of the driving signal is different, specifically, the magnitude of the driving current may be different or the magnitude of the built-in resistor of the driving chip may be different. As shown in fig. 4, 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, so that the brightness in different control partitions can be controlled by time-sharing 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 chip controls the resistor in the LED loop, the larger the driving signal is, the larger the resistor in the LED loop is, the smaller the current in the LED loop is, and the smaller the brightness of the corresponding control partition is; the above are illustrative and are not intended to be a specific limitation on the embodiments of the present application. Shown in FIG. 4, t ₀ ＝t ₁ ＝t ₂ The 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, the frequency of the driving signal and the frequency of the switching control signal are both required to be greater than 24HZ, so that the human eye cannot recognize the flicker of the LED.

According to the driving method of the lamp panel structure, different brightness is emitted by controlling different control partitions through controlling the sizes of driving signals provided by the driving chips for the different control partitions, and the brightness of the different control partitions can be flexibly controlled under the condition that one driving chip correspondingly drives two or more control partitions, so that the accuracy of partition control of the lamp panel structure can be ensured, and the flexible adjustment of the partition brightness of the lamp panel structure is ensured while the use quantity of the driving chips is reduced.

In some embodiments, the driving signals include addressing 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 signals is completed, the addressing pins are controlled to be disconnected from the output pins, and the output pins are controlled to be conducted with the grounding pins, so that the LEDs of the control areas corresponding to the addressing signals form loops with the positive electrode signal lines and the grounding signal lines respectively, and the LEDs are lightened.

For example, during the initialization of the driving chip 200, the driving chip 200 receives a series of addressing signals to determine the on/off of the control partition, and after receiving the signals, the driving chip 200 controls the output pin OUT to realize whether the partition forms a loop or not so as to drive the LED to emit light; the addressing signal needs to be reassigned every refresh. When an addressing signal is input, the addressing pin DI and the output pin OUT transmit the addressing signal through 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 on-off of the output pin OUT and the ground pin GND can control the on-off of an LED lighting loop.

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

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

a processor 902, wherein the processor 902 is configured to implement 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, a display device is provided, and fig. 9 is a schematic block diagram of a 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: the lamp panel structure 1000 according to the first aspect, the lamp panel structure 1000 is used as a display panel, or the lamp panel structure 1000 is used as a backlight. The display device may further include a driving 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 used for display, and the embodiments of the present application are not limited in particular.

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

In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.

It will be appreciated by those skilled in the art that 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 flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations 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.

Embodiments of the present application also provide a computer program product comprising computer software instructions that, when run on a processing device, cause the processing device to perform a flow of a method of driving a lamp panel structure.

The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). Computer readable storage media can be any available media that can be stored by a computer or data storage devices such as servers, data centers, etc. that contain an integration of one or more available media. Usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid State Disks (SSDs)), among others.

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

In the several embodiments provided in this application, it should be understood that the disclosed apparatus, device, and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

While preferred embodiments of the present description 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. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the disclosure.

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

Claims

1. A lamp panel structure, comprising:

the switch assembly is respectively arranged between the driving chip and each control partition correspondingly connected with the driving chip, and is used for receiving a switch control signal, and the switch control signal is used for controlling the connection and disconnection of the control partition correspondingly connected with the switch assembly and the passage of the driving chip;

a time controller for providing the switch control signal to the switch assembly;

the driving chip is used for providing driving signals for the LEDs in the control partition which are correspondingly connected;

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

The switch control signal and the driving signal are square wave signals;

2. The lamp panel structure of claim 1, wherein the switch control signal comprises a turn-on signal;

3. The lamp panel structure of claim 1, wherein the driver chip is configured to provide different driving signals to LEDs in the corresponding connected control zones to control different control zones to produce different brightness.

4. A lamp panel structure as claimed in claim 3, wherein the switch control signal and the drive signal are square wave signals, the drive signal having a frequency that is a multiple of the frequency of the switch control signal received by the corresponding switch assembly.

5. A lamp panel structure as claimed in claim 1, characterized in that the switching assembly comprises at least one switching device and/or at least one capacitor.

6. The lamp panel structure of claim 5, wherein the switching device comprises a thin film transistor.

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

8. The lamp panel structure of claim 7, wherein the back plate comprises a substrate layer;

9. The lamp panel structure of claim 8, wherein the switch assembly comprises a gate, a source and a drain;

10. A driving method of a lamp panel structure, characterized in that it is applied to a lamp panel structure according to any one of claims 1-9, the driving method comprising:

receiving an LED driving instruction;

11. The driving method of a lamp panel structure according to claim 10, wherein the controlling the on or off of the switch assembly based on the LED driving command to drive the LEDs in at least two control partitions electrically connected to the corresponding LEDs through the same driving chip comprises:

12. The driving method of a lamp panel structure according to claim 11, wherein the switch control signal comprises a turn-on signal for controlling the turn-on of the switch assembly;

13. The method of driving a lamp panel structure according to claim 11, wherein transmitting a switching control signal to the switching assembly based on the LED driving command to control on or off of the switching assembly, comprises:

Based on the LED driving instruction, the same driving signal is transmitted to the LEDs in the control partitions correspondingly connected with the on switch assembly through the driving chip so as to control different control partitions to generate different brightness, wherein in one period of the driving signal, the sum of the duration of the on signals received by the switch assemblies corresponding to the same driving chip is smaller than or equal to the half period of the driving signal.

14. The method of driving a lamp panel structure according to claim 11, wherein transmitting a switching control signal to the switching assembly based on the LED driving command to control on or off of the switching assembly, comprises:

15. The method of driving a lamp panel structure according to claim 11, wherein the driving signal comprises an addressing signal;

16. A drive controller, comprising:

a memory in which a computer program is stored;

a processor for implementing a method of driving a lamp panel structure according to any one of claims 10-15 when executing the computer program.

17. A display device, comprising:

The lamp panel structure of any one of claims 1-9, as a display panel, or as a backlight; and/or the number of the groups of groups,

the drive controller of claim 16.