CN114420060B - MiniLED backlight display device and method - Google Patents
MiniLED backlight display device and method Download PDFInfo
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- CN114420060B CN114420060B CN202210064558.0A CN202210064558A CN114420060B CN 114420060 B CN114420060 B CN 114420060B CN 202210064558 A CN202210064558 A CN 202210064558A CN 114420060 B CN114420060 B CN 114420060B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The purpose of the application is to provide a MiniLED backlight display scheme. Specifically, the MiniLED backlight display device comprises an electric energy storage device, a MiniLED light-emitting device, a control device, an x-direction power supply circuit and a y-direction power supply circuit; after each electric energy storage device is connected in parallel with the corresponding MiniLED light-emitting device, one end of each electric energy storage device is connected with one x-direction power supply circuit, and the other end of each electric energy storage device is connected with one y-direction power supply circuit; each x-direction power supply circuit and each y-direction power supply circuit are connected with the control device. According to the MiniLED backlight display device, the control device is used for controlling the power supply paths formed by the power supply circuits and the power supply circuits, and under the condition that the corresponding power supply paths are disconnected, the electric energy storage device is used for supplying power to the corresponding MiniLED light emitting device, so that the power consumption of the MiniLED backlight display device is effectively reduced, and the equipment provided with the MiniLED backlight display device has stronger endurance.
Description
Technical Field
The application relates to the field of information technology, in particular to a MiniLED backlight display technology.
Background
In recent years, mini LED backlight technology is gradually developed and applied to electronic products. By utilizing Mini LED backlight technology, more LEDs can be integrated on the same plane to form a surface light source to form the light emitting surface of the backlight module. As shown in FIG. 1, the existing Mini LED backlight scheme is that a MiniLED light-emitting device 12 is connected into a circuit in a serial-parallel connection mode, and a power supply interface 11 and a power supply interface 13 are connected through a power supply, so that the device 12 is continuously supplied with power to emit light to form a backlight source with fixed brightness, and the display requirement is met. However, the brightness of each LED in this scheme is fixed, and a constant current needs to be supplied to the device 12, resulting in higher power consumption of the MiniLED backlight display device.
Disclosure of Invention
An object of the present application is to provide a MiniLED backlight display device and method.
According to one aspect of the present application, there is provided a MiniLED backlight display device, wherein the device comprises:
the power supply circuit comprises an electric energy storage device, a MiniLED light-emitting device, a control device, an x-direction power supply circuit and a y-direction power supply circuit;
after each electric energy storage device is connected in parallel with the corresponding MiniLED light-emitting device, one end of each electric energy storage device is connected with one x-direction power supply circuit, and the other end of each electric energy storage device is connected with one y-direction power supply circuit;
each x-direction power supply circuit and each y-direction power supply circuit are connected with the control device.
Further, the lighting process of the MiniLED light emitting device includes: supplying power to the first power supply circuit by the control device, and switching on the first power supply circuit by x, so that a passage is formed by the first power supply circuit by x and the first power supply circuit by y, the MiniLED light-emitting device connected to the passage works to emit light, and the electric energy storage device connected in parallel with the MiniLED light-emitting device is charged; the control device is used for disconnecting the X-direction first power supply circuit and supplying power to the X-direction second power supply circuit, so that a passage is formed between the X-direction second power supply circuit and the Y-direction first power supply circuit, the MiniLED light-emitting device connected to the passage works to emit light, and the electric energy storage device connected in parallel with the MiniLED light-emitting device is charged; and the control device supplies power to the nth power supply circuit and the mth power supply circuit through the x, so that the nth power supply circuit and the mth power supply circuit form a passage, the MiniLED light-emitting device connected to the passage works to emit light, and the electric energy storage device connected in parallel with the MiniLED light-emitting device is charged.
Further, the lighting process of the MiniLED light emitting device further includes: when the working luminescence of the accessed MiniLED light-emitting device reaches the target brightness on a path formed by the x-th (n-1) power supply circuit and the y-th (m) power supply circuit, the x-th (n-1) power supply circuit is disconnected through the control device, and power is supplied to the x-th power supply circuit.
Further, when the frame to be displayed by the device changes, the lighting process of the MiniLED light emitting device is repeated.
Further, the MiniLED light-emitting device is a light-emitting device composed of one MiniLED or a light-emitting device composed of a plurality of MiniLEDs connected in series and parallel.
Further, the electric energy storage device and the MiniLED light emitting device are located in a surface light source area, and the control device is located outside the surface light source area.
According to another aspect of the present application, there is also provided a MiniLED backlight display method, wherein the method includes:
the control device supplies power to the y-direction first power supply circuit, the x-direction first power supply circuit is connected, then the x-direction first power supply circuit and the y-direction first power supply circuit form a passage, the MiniLED light-emitting device connected to the passage works to emit light, and the electric energy storage device connected in parallel with the MiniLED light-emitting device is charged;
and the control device supplies power to the nth power supply circuit and the mth power supply circuit through the x, so that the nth power supply circuit and the mth power supply circuit form a passage, the MiniLED light-emitting device connected to the passage works to emit light, and the electric energy storage device connected in parallel with the MiniLED light-emitting device is charged.
Further, the method further comprises: when the working luminescence of the accessed MiniLED light-emitting device reaches the target brightness on a path formed by the x-th (n-1) power supply circuit and the y-th (m) power supply circuit, the x-th (n-1) power supply circuit is disconnected through the control device, and power is supplied to the x-th power supply circuit.
According to yet another aspect of the present application, there is also provided a computing device, wherein the device comprises a memory for storing computer program instructions and a processor for executing the computer program instructions, wherein the computer program instructions, when executed by the processor, trigger the device to perform the MiniLED backlight display method.
According to yet another aspect of the present application, there is also provided a computer readable medium having stored thereon computer program instructions executable by a processor to implement the MiniLED backlight display method.
In the scheme provided by the application, the MiniLED backlight display device comprises an electric energy storage device, a MiniLED light-emitting device, a control device, an x-direction power supply circuit and a y-direction power supply circuit; after each electric energy storage device is connected in parallel with the corresponding MiniLED light-emitting device, one end of each electric energy storage device is connected with one x-direction power supply circuit, and the other end of each electric energy storage device is connected with one y-direction power supply circuit; each x-direction power supply circuit and each y-direction power supply circuit are connected with the control device. According to the MiniLED backlight display device, the control device is used for controlling the power supply paths formed by the power supply circuits and the power supply circuits, and under the condition that the corresponding power supply paths are disconnected, the electric energy storage device is used for supplying power to the corresponding MiniLED light emitting device, so that the power consumption of the MiniLED backlight display device is effectively reduced, and the equipment provided with the MiniLED backlight display device has stronger endurance.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
FIG. 1 is a schematic diagram of a prior art MiniLED backlight display device;
FIG. 2 is a schematic diagram of a MiniLED backlight display device according to an embodiment of the present application;
FIG. 3 is a flowchart of the operation of a MiniLED backlight display device according to an embodiment of the present application;
fig. 4 is a flowchart of a MiniLED backlight display method according to an embodiment of the present application.
The same or similar reference numbers in the drawings refer to the same or similar parts.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
In one typical configuration of the present application, the terminal, the device of the service network, and the trusted party each include one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.
Computer-readable media include both permanent and non-permanent, removable and non-removable media, and information storage may be implemented by any method or technology. The information may be computer readable instructions, data structures, program devices, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape storage or other magnetic storage devices, or any other non-transmission medium which can be used to store information that can be accessed by a computing device.
The embodiment of the application provides the MiniLED backlight display method, which effectively reduces the power consumption of the MiniLED backlight display device and ensures that equipment provided with the MiniLED backlight display device has stronger cruising ability.
In a practical scenario, the device implementing the method may be a user device, a network device, or a device formed by integrating the user device and the network device through a network. The user equipment comprises terminal equipment such as a smart phone, a tablet personal computer, a personal computer and the like, and the network equipment comprises network hosts, a single network server, a plurality of network server sets or a computer set based on cloud computing and the like. Here, the Cloud is composed of a large number of hosts or web servers based on Cloud Computing (Cloud Computing), which is a kind of distributed Computing, one virtual computer composed of a group of loosely coupled computer sets.
Fig. 2 is a schematic structural diagram of a MiniLED backlight display device according to an embodiment of the present application, which includes a power storage device 21, a MiniLED light emitting device 22, a control device 23, an x-direction power supply circuit (x 1, x2, x 3), and a y-direction power supply circuit (y 1, y2, y 3); wherein, after each electric energy storage device 21 is connected in parallel with the corresponding MiniLED light-emitting device 22, one end is connected with one x-direction power supply circuit, and the other end is connected with one y-direction power supply circuit; each of the x-direction power supply circuits and each of the y-direction power supply circuits are connected to the control device 23.
For example, the electric energy storage device 21 is an electric energy storage device that can be repeatedly charged and discharged; as shown in fig. 2, x1, x2, x3 and y1, y2, y3 may form multiple sets of power supply lines (e.g., y1-x1 path, y1-x2 path, y1-x3 path, y2-x1 path, y2-x2 path, y2-x3 path, y3-x1 path, y3-x2 path, y3-x3 path) connected to the control device 23, and these independent paths may independently control the respective jurisdictioned display regions; the brightness adjustment of each MiniLED lighting device 22 is controlled by said control device 23. In an actual scene, according to the brightness effect of the display screen, the brightness of one or more MiniLED light emitting devices 22 can be reduced by the control device 23, so as to achieve the effect of reducing power consumption. In the display screen of the MiniLED backlight display device, if the area a needs to display a brighter color, the control device 23 can control the MiniLED light emitting device 22 at the corresponding position of the area a to emit light normally so as to meet the display brightness requirement; assuming that the area b in the display screen needs to display darker color or black, the brightness of the MiniLED light emitting device 22 at the position corresponding to the area b can be reduced or turned off by the control device 23, so that the display effect is met, and the power consumption of the device is reduced.
It should be noted that, the x-direction power supply circuits x1, x2, x3 and the y-direction power supply circuits y1, y2, y3 shown in fig. 2 are only examples, the number of x-direction power supply circuits and y-direction power supply circuits is not limited to 3, the number of x-direction power supply circuits and y-direction power supply circuits may be any number, and the number of x-direction power supply circuits is not necessarily equal to the number of y-direction power supply circuits.
In some embodiments, the MiniLED light emitting device 22 is a light emitting device consisting of one MiniLED, or a light emitting device consisting of multiple minileds connected in series-parallel.
In some embodiments, as shown in fig. 2, the power storage device 21 and the MiniLED light emitting device 22 are located in a surface light source region 24, and the control device 23 is located outside the surface light source region 24.
In some embodiments, the lighting process of the MiniLED light emitting device includes: supplying power to the first power supply circuit by the control device, and switching on the first power supply circuit by x, so that a passage is formed by the first power supply circuit by x and the first power supply circuit by y, the MiniLED light-emitting device connected to the passage works to emit light, and the electric energy storage device connected in parallel with the MiniLED light-emitting device is charged; the control device is used for disconnecting the X-direction first power supply circuit and supplying power to the X-direction second power supply circuit, so that a passage is formed between the X-direction second power supply circuit and the Y-direction first power supply circuit, the MiniLED light-emitting device connected to the passage works to emit light, and the electric energy storage device connected in parallel with the MiniLED light-emitting device is charged; and the control device supplies power to the nth power supply circuit and the mth power supply circuit through the x, so that the nth power supply circuit and the mth power supply circuit form a passage, the MiniLED light-emitting device connected to the passage works to emit light, and the electric energy storage device connected in parallel with the MiniLED light-emitting device is charged.
For example, as shown in fig. 2, the x-direction power supply circuits x1, x2, x3 and the y-direction power supply circuits y1, y2, y3 are respectively independent circuits, and an electric energy storage device 21 and a MiniLED light emitting device 22 are connected between each circuit in a manner shown in fig. 2. As shown in fig. 3, when the MiniLED backlight display device is in operation, power is firstly supplied to the line y1, and then the line x1 is turned on; when the line x1 is connected, a current path is formed with the line y1, the MiniLED light-emitting device 22 connected to the y1-x1 path works, meanwhile, the electric energy storage device 21 on the path is charged, and when the MiniLED light-emitting device 22 on the path reaches the target brightness, the line x1 is disconnected, and the line x2 is connected; when the line x1 is disconnected, the power storage device 21 on the original y1-x1 path continues to supply power to the MiniLED light emitting device 22 on the original y1-x1 path so as to keep the brightness. After the line x2 is connected, a current path is formed between the line x2 and the line y1, the MiniLED light-emitting device 22 connected to the y1-x2 path starts to work, meanwhile, the electric energy storage device 21 on the path is charged, and after the MiniLED light-emitting device 22 on the path reaches the target brightness, the line x2 is disconnected, and the line x3 is connected; when the line x2 is disconnected, the power storage device 21 on the original y1-x2 path continues to supply power to the MiniLED light emitting device 22 on the original y1-x2 path so as to keep the brightness. As shown in fig. 2 and 3, according to the above-mentioned lighting sequence of the MiniLED light emitting devices, when the last lines x3 and y3 in fig. 2 are turned on to form a current path, all MiniLED light emitting devices 22 in fig. 2 are lighted to form a stable backlight.
In some embodiments, the lighting process of the MiniLED light emitting device further comprises: when the working luminescence of the accessed MiniLED light-emitting device reaches the target brightness on a path formed by the x-th (n-1) power supply circuit and the y-th (m) power supply circuit, the x-th (n-1) power supply circuit is disconnected through the control device, and power is supplied to the x-th power supply circuit.
In some embodiments, when the frame to be displayed by the device changes, the lighting process of the MiniLED light emitting device is repeated, so that the brightness switching frequency of the backlight is consistent with the frame rate of the display frame.
Fig. 4 is a flowchart of a MiniLED backlight display method according to an embodiment of the present application, the method including step S401 and step S402.
Step S401, supplying power to a first power supply circuit by a control device, and switching on a first power supply circuit by x, wherein a passage is formed by the first power supply circuit by x and the first power supply circuit by y, a MiniLED light-emitting device connected to the passage works to emit light, and an electric energy storage device connected in parallel with the MiniLED light-emitting device is charged; and step S402, supplying power to the nth power supply circuit and the mth power supply circuit through the control device, forming a passage by the nth power supply circuit and the mth power supply circuit, enabling the MiniLED light-emitting device connected to the passage to work and emit light, and charging an electric energy storage device connected in parallel with the MiniLED light-emitting device.
For example, as shown in fig. 2, after each electric energy storage device 21 is connected in parallel with the corresponding MiniLED light emitting device 22, one end is connected to an x-direction power supply circuit, and the other end is connected to a y-direction power supply circuit; each x-direction power supply circuit and each y-direction power supply circuit are connected to the control device 23. The electric energy storage device 21 is an electric energy storage device which can be repeatedly charged and discharged; as shown in fig. 2, x1, x2, x3 and y1, y2, y3 may form multiple sets of power supply lines (e.g., y1-x1 path, y1-x2 path, y1-x3 path, y2-x1 path, y2-x2 path, y2-x3 path, y3-x1 path, y3-x2 path, y3-x3 path) connected to the control device 23, and these independent paths may independently control the respective jurisdictioned display regions; the brightness adjustment of each MiniLED lighting device 22 is controlled by said control device 23. In an actual scene, according to the brightness effect of the display screen, the brightness of one or more MiniLED light emitting devices 22 can be reduced by the control device 23, so as to achieve the effect of reducing power consumption. In the display screen of the MiniLED backlight display device, if the area a needs to display a brighter color, the control device 23 can control the MiniLED light emitting device 22 at the corresponding position of the area a to emit light normally so as to meet the display brightness requirement; assuming that the area b in the display screen needs to display darker color or black, the brightness of the MiniLED light emitting device 22 at the position corresponding to the area b can be reduced or turned off by the control device 23, so that the display effect is met, and the power consumption of the device is reduced.
As shown in fig. 2, the x-direction power supply circuits x1, x2, x3 and the y-direction power supply circuits y1, y2, y3 are respectively independent circuits, and an electric energy storage device 21 and a MiniLED light-emitting device 22 are connected between each circuit in a manner shown in fig. 2. As shown in fig. 3, when the MiniLED backlight display device is in operation, power is firstly supplied to the line y1, and then the line x1 is turned on; when the line x1 is connected, a current path is formed with the line y1, the MiniLED light-emitting device 22 connected to the y1-x1 path works, meanwhile, the electric energy storage device 21 on the path is charged, and when the MiniLED light-emitting device 22 on the path reaches the target brightness, the line x1 is disconnected, and the line x2 is connected; when the line x1 is disconnected, the power storage device 21 on the original y1-x1 path continues to supply power to the MiniLED light emitting device 22 on the original y1-x1 path so as to keep the brightness. After the line x2 is connected, a current path is formed between the line x2 and the line y1, the MiniLED light-emitting device 22 connected to the y1-x2 path starts to work, meanwhile, the electric energy storage device 21 on the path is charged, and after the MiniLED light-emitting device 22 on the path reaches the target brightness, the line x2 is disconnected, and the line x3 is connected; when the line x2 is disconnected, the power storage device 21 on the original y1-x2 path continues to supply power to the MiniLED light emitting device 22 on the original y1-x2 path so as to keep the brightness. As shown in fig. 2 and 3, according to the above-mentioned lighting sequence of the MiniLED light emitting devices, when the last lines x3 and y3 in fig. 2 are turned on to form a current path, all MiniLED light emitting devices 22 in fig. 2 are lighted to form a stable backlight.
In some embodiments, the miniLED backlight display method further comprises that when the working light of the accessed miniLED light emitting device reaches the target brightness on a path formed by the x-th (n-1) power supply circuit and the y-th power supply circuit, the x-th (n-1) power supply circuit is disconnected through the control device, and power is supplied to the x-th power supply circuit.
In some embodiments, when the frame to be displayed by the device changes, the lighting process of the MiniLED light emitting device is repeated, so that the brightness switching frequency of the backlight is consistent with the frame rate of the display frame.
In summary, the embodiment of the application realizes the differentiated control of the brightness of the LED by adding the electric energy storage device and the control device, thereby achieving the effect of reducing the power consumption.
Furthermore, portions of the present application may be implemented as a computer program product, such as computer program instructions, which when executed by a computer, may invoke or provide methods and/or techniques in accordance with the present application by way of operation of the computer. Program instructions for invoking the methods of the present application may be stored in fixed or removable recording media and/or transmitted via a data stream in a broadcast or other signal bearing medium and/or stored within a working memory of a computer device operating according to the program instructions. Some embodiments of the present application provide a computing device comprising a memory for storing computer program instructions and a processor for executing the computer program instructions, wherein the computer program instructions, when executed by the processor, trigger the device to perform the methods and/or aspects of the various embodiments of the present application described previously.
Furthermore, some embodiments of the present application provide a computer readable medium having stored thereon computer program instructions executable by a processor to implement the methods and/or aspects of the various embodiments of the present application described above.
It should be noted that the present application may be implemented in software and/or a combination of software and hardware, for example, using Application Specific Integrated Circuits (ASIC), a general purpose computer or any other similar hardware device. In some embodiments, the software programs of the present application may be executed by a processor to implement the steps or functions described above. Likewise, the software programs of the present application (including associated data structures) may be stored on a computer readable recording medium, such as RAM memory, magnetic or optical drive or diskette and the like. In addition, some steps or functions of the present application may be implemented in hardware, for example, as circuitry that cooperates with the processor to perform various steps or functions.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is evident that the word "comprising" does not exclude other elements or steps, and that the singular does not exclude a plurality. A plurality of units or means recited in the apparatus claims can also be implemented by means of one unit or means in software or hardware. The terms first, second, etc. are used to denote a name, but not any particular order.
Claims (9)
1. A Mini LED backlight display device, wherein the device comprises:
the LED power supply device comprises an electric energy storage device, a Mini LED light-emitting device, a control device, an x-direction power supply circuit and a y-direction power supply circuit;
after each electric energy storage device is connected in parallel with the corresponding Mini LED light-emitting device, one end of each electric energy storage device is connected with one x-direction power supply circuit, and the other end of each electric energy storage device is connected with one y-direction power supply circuit;
each x-direction power supply circuit and each y-direction power supply circuit are connected with the control device;
the lighting process of the Mini LED light emitting device comprises the following steps:
supplying power to the first power supply circuit by the control device, and switching on the first power supply circuit by x, so that a passage is formed by the first power supply circuit by x and the first power supply circuit by y, the Mini LED light-emitting device connected to the passage works to emit light, and the electric energy storage device connected in parallel with the Mini LED light-emitting device is charged;
the control device is used for disconnecting the x-direction first power supply circuit and supplying power to the x-direction second power supply circuit, so that a passage is formed between the x-direction second power supply circuit and the y-direction first power supply circuit, the Mini LED light-emitting device connected to the passage works to emit light, and the electric energy storage device connected in parallel with the Mini LED light-emitting device is charged;
and the control device supplies power to the nth power supply circuit and the mth power supply circuit through the x, so that a passage is formed by the nth power supply circuit and the mth power supply circuit through the x, the Mini LED light-emitting device connected to the passage works and emits light, and the electric energy storage device connected in parallel with the Mini LED light-emitting device is charged.
2. The apparatus of claim 1, wherein the lighting process of the Mini LED lighting device further comprises:
when the working luminescence of the accessed Mini LED light emitting device reaches the target brightness on a path formed by the x-th (n-1) power supply circuit and the y-th (m) power supply circuit, the x-th (n-1) power supply circuit is disconnected through the control device, and power is supplied to the x-th power supply circuit.
3. The apparatus of claim 1 or 2, wherein the lighting process of the Mini LED light emitting device is repeated when a picture that the apparatus needs to display changes.
4. A device according to any one of claims 1 to 3, wherein the Mini LED light emitting device is a light emitting device consisting of one Mini LED or a light emitting device consisting of a plurality of Mini LEDs connected in series-parallel.
5. The apparatus of any one of claims 1 to 4, wherein the electrical energy storage device and the Mini LED lighting device are located in a surface light source region, and the control device is located outside the surface light source region.
6. A Mini LED backlight display method, wherein the method comprises:
the control device supplies power to the y-direction first power supply circuit, the x-direction first power supply circuit is connected, the x-direction first power supply circuit and the y-direction first power supply circuit form a passage, the Mini LED light-emitting device connected to the passage works to emit light, and the electric energy storage device connected in parallel with the Mini LED light-emitting device is charged;
and the control device supplies power to the nth power supply circuit and the mth power supply circuit through the x, so that a passage is formed by the nth power supply circuit and the mth power supply circuit through the x, the Mini LED light-emitting device connected to the passage works and emits light, and the electric energy storage device connected in parallel with the Mini LED light-emitting device is charged.
7. The method of claim 6, wherein the method further comprises:
when the working luminescence of the accessed Mini LED light emitting device reaches the target brightness on a path formed by the x-th (n-1) power supply circuit and the y-th (m) power supply circuit, the x-th (n-1) power supply circuit is disconnected through the control device, and power is supplied to the x-th power supply circuit.
8. A computing device, wherein the device comprises a memory for storing computer program instructions and a processor for executing the computer program instructions, wherein the computer program instructions, when executed by the processor, trigger the device to perform the method of claim 6 or 7.
9. A computer readable medium having stored thereon computer program instructions executable by a processor to implement the method of claim 6 or 7.
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| CN202210064558.0A CN114420060B (en) | 2022-01-20 | 2022-01-20 | MiniLED backlight display device and method |
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| CN1484213A (en) * | 2002-09-17 | 2004-03-24 | 王晓峰 | Method and device for controlling luminance of large LED screen |
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