CN114927088A - Micro-LED display device and method based on short-distance communication technology - Google Patents

Micro-LED display device and method based on short-distance communication technology Download PDF

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Publication number
CN114927088A
CN114927088A CN202210552326.XA CN202210552326A CN114927088A CN 114927088 A CN114927088 A CN 114927088A CN 202210552326 A CN202210552326 A CN 202210552326A CN 114927088 A CN114927088 A CN 114927088A
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micro
short
led
data
led display
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田朋飞
贾茳勰
崔旭高
顾而丹
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Yiwu Research Institute Of Fudan University
Fudan University
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Yiwu Research Institute Of Fudan University
Fudan University
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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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • 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
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The application relates to a Micro-LED display device and method based on short-distance communication technology, relating to the technical field of LED display, wherein the device comprises a short-distance communication module, a data processing module, a Micro-LED drive circuit and a Micro-LED display array, wherein: the short-distance communication module is used for receiving a communication request of a target terminal and establishing short-distance communication connection with the target terminal; the short-distance communication module is also used for receiving target data sent by the target terminal through short-distance communication connection and transmitting the target data to the data processing module; the data processing module is used for analyzing the target data into a driving current pulse signal and transmitting the driving current pulse signal to the Micro-LED driving circuit; and the Micro-LED driving circuit is used for controlling the Micro-LED display array to display target data based on the driving current pulse signal. By adopting the application, the application prospect of the Micro-LED can be expanded, and the power-assisted Micro-LED can be rapidly put into the market for application.

Description

Micro-LED display device and method based on short-distance communication technology
Technical Field
The application relates to the technical field of LED display, in particular to a Micro-LED display device and method based on a short-distance communication technology.
Background
The Micro-LED is a novel Micro light-emitting device, generally refers to a high-density Micro-small-size LED array integrated on a chip, and is mainly characterized in that after the LED is subjected to film, Micro-size and array, the LED is transferred to a circuit substrate in batch mode, then a physical deposition process is utilized to complete a protective layer and an upper electrode, wherein each pixel point can be addressed, and is independently driven to light.
When the Micro-LEDs display images, the images to be displayed can be analyzed firstly, digital signals of all pixel points in the images are generated, then the digital signals are converted into current pulse signals, so that the corresponding red, green and blue Micro-LEDs at all the pixel points are driven to be lightened, and the displayed colors are controlled by controlling the brightness of each Micro-LED.
Compared with the traditional LCD and OLED display technologies, the Micro-LED has the characteristics of high resolution, low power consumption, high brightness, high contrast, high color saturation, high reaction speed, long service life and the like, so that how to quickly and effectively put the Micro-LED into market application is a problem which needs continuous important attention at present and in the future.
Disclosure of Invention
In order to expand the application prospect of the Micro-LED and help the Micro-LED to be rapidly put into the market for application, the embodiment of the application provides a Micro-LED display device and method based on a short-distance communication technology. The technical scheme is as follows:
in a first aspect, an embodiment of the present application provides a Micro-LED display device based on a short-distance communication technology, where the Micro-LED display device includes a short-distance communication module, a data processing module, a Micro-LED driving circuit, and a Micro-LED display array, where:
the short-distance communication module is used for receiving a communication request of a target terminal and establishing short-distance communication connection with the target terminal;
the short-distance communication module is also used for receiving target data sent by the target terminal through the short-distance communication connection and transmitting the target data to the data processing module;
the data processing module is used for analyzing the target data into a driving current pulse signal and transmitting the driving current pulse signal to the Micro-LED driving circuit;
the Micro-LED driving circuit is used for controlling the Micro-LED display array to display target data based on the driving current pulse signal.
Based on the technical scheme, on one hand, the Micro-LED is used as a basic device of the display screen, the backlight technology of the liquid crystal display screen is not needed for displaying, the power consumption of the display is low, and the Micro-LED has ultrahigh resolution, response speed and color saturation in an active driving mode, has longer service life and can bring higher visual experience to users with various requirements. On the other hand, the data are transmitted through the short-distance communication module, the data transmission device has the advantages of convenience in transmission and easiness in carrying, a data line and a corresponding interface are not needed, and the data can be directly transmitted and displayed after the short-distance communication connection is successfully established.
Optionally, the short-range communication module includes a bluetooth pairing unit and a data receiving unit, wherein:
the Bluetooth pairing unit is used for receiving a Bluetooth pairing request of a target terminal and establishing Bluetooth communication connection with the target terminal;
and the data receiving unit is used for receiving the target data sent by the target terminal through the Bluetooth communication connection and transmitting the target data to the data processing module.
Based on the technical scheme, the Bluetooth functional unit is arranged in the Micro-LED display device, and the data transmission function can be conveniently, efficiently and inexpensively realized through the Bluetooth technology.
Optionally, the data processing module includes a data processing unit and a data storage unit, wherein:
the data storage unit is used for storing the target data transmitted by the short-distance communication module;
the data processing unit is used for reading the target data from the data storage unit, analyzing the target data into a driving current pulse signal, and transmitting the driving current pulse signal to the Micro-LED driving circuit.
Based on the technical scheme, the Micro-LED display device stores the received data content to the data storage unit, and the data storage unit sequentially provides the data content to the data processing unit, so that the sequential processing of target data can be facilitated, and the stability of the data displayed by the Micro-LED display device is improved.
Optionally, the Micro-LED driving circuit is specifically configured to:
and the Micro-LED driving circuit scans and addresses the Micro-LED display array based on the target data in each refreshing frame to generate a driving current signal of each pixel point LED in the Micro-LED display array so as to control the on-off and gray scale of each pixel point LED.
Optionally, the data processing module is specifically configured to:
adjusting the resolution of the target data according to the resolution of the Micro-LED display array;
and analyzing the target data with the adjusted resolution ratio into a driving current pulse signal, and transmitting the driving current pulse signal to the Micro-LED driving circuit.
Based on the technical scheme, before data are displayed on the Micro-LED display array, the resolution ratio of the target data is adjusted, the display accuracy of the target data can be improved, and the data display effect is improved.
Optionally, the data processing module is further configured to:
and analyzing the target data according to the resolution of the target data and a preset resolution display mode to generate a driving current pulse signal, wherein the resolution display mode comprises a plurality of display modes with fineness from high to low.
Based on the technical scheme, before the data is displayed on the Micro-LED display device, a user can preset a resolution display mode on the Micro-LED display device, so that the data can be displayed on the Micro-LED display device based on the resolution display mode set by the user, and the diversity and the flexibility of the display mode of the Micro-LED display device are improved.
Optionally, the Micro-LED display device further includes a WIFI communication module;
the short-distance communication module is also used for acquiring a WIFI communication address of the target terminal and transmitting the WIFI communication address to the WIFI communication module;
the data processing module is further configured to calculate a minimum transmission rate required by the target data, and send a WIFI connection establishment instruction to the WIFI communication module if the minimum transmission rate is greater than an upper limit of a bandwidth of the short-distance communication module;
the WIFI communication module is used for responding to a WIFI connection establishment instruction sent by the data processing module and establishing WIFI communication connection with the target terminal based on the WIFI communication address;
the WIFI communication module is further used for continuously receiving the target data through the WIFI communication connection and transmitting the target data to the data processing module.
Based on the technical scheme, the Micro-LED display device is further provided with the WIFI communication module, and when the data volume is too large and the upper limit of the bandwidth of the short-distance communication module cannot meet the data transmission requirement, data can be continuously transmitted through the WIFI connection, so that the stability of data transmission can be improved.
In a second aspect, an embodiment of the present application provides a Micro-LED display method based on a short-distance communication technology, where the method is applied to a Micro-LED display device, where the Micro-LED display device includes a short-distance communication module, a data processing module, a Micro-LED driving circuit, and a Micro-LED display array, and the method includes:
the short-distance communication module receives a communication request of a target terminal and establishes short-distance communication connection with the target terminal;
the short-distance communication module receives target data sent by the target terminal through the short-distance communication connection and transmits the target data to the data processing module;
the data processing module analyzes the target data into a driving current pulse signal and transmits the driving current pulse signal to the Micro-LED driving circuit;
and the Micro-LED driving circuit controls the Micro-LED display array to display target data based on the driving current pulse signal.
Optionally, the short-range communication module includes a bluetooth pairing unit and a data receiving unit;
the short-distance communication module receives a communication request of a target terminal and establishes short-distance communication connection with the target terminal, and the short-distance communication module comprises:
the Bluetooth pairing unit receives a Bluetooth pairing request of a target terminal and establishes Bluetooth communication connection with the target terminal;
and the data receiving unit receives the target data sent by the target terminal through the Bluetooth communication connection and transmits the target data to the data processing module.
Optionally, the data processing module includes a data processing unit and a data storage unit;
the data processing module analyzes the target data into a driving current pulse signal, and transmits the driving current pulse signal to the Micro-LED driving circuit, and the method comprises the following steps:
the data storage unit stores the target data transmitted by the short-distance communication module;
and the data processing unit reads the target data from the data storage unit, analyzes the target data into a driving current pulse signal, and transmits the driving current pulse signal to the Micro-LED driving circuit.
Optionally, the controlling, by the Micro-LED driving circuit, the Micro-LED display array to display target data based on the driving current pulse signal includes:
and the Micro-LED driving circuit scans and addresses the Micro-LED display array based on the target data in each refreshing frame, and generates a driving current signal of each pixel point LED in the Micro-LED display array so as to control the on-off and gray scale of each pixel point LED.
Optionally, the analyzing, by the data processing module, the target data into a driving current pulse signal, and transmitting the driving current pulse signal to the Micro-LED driving circuit includes:
the data processing module adjusts the resolution of the target data according to the resolution of the Micro-LED display array;
and the data processing module analyzes the target data with the adjusted resolution ratio into a driving current pulse signal and transmits the driving current pulse signal to the Micro-LED driving circuit.
Optionally, the analyzing, by the data processing module, the target data into a driving current pulse signal includes:
the data processing module analyzes the target data according to the resolution of the target data and a preset resolution display mode to generate a driving current pulse signal, wherein the resolution display mode comprises a plurality of display modes with fineness from high to low.
Optionally, the Micro-LED display device further includes a WIFI communication module;
the method further comprises the following steps:
the short-distance communication module acquires a WIFI communication address of the target terminal and transmits the WIFI communication address to the WIFI communication module;
the data processing module calculates the lowest transmission rate required by the target data, and if the lowest transmission rate is greater than the upper limit of the bandwidth of the short-distance communication module, a WIFI connection establishment instruction is sent to the WIFI communication module;
the WIFI communication module responds to a WIFI connection establishment instruction sent by the data processing module and establishes WIFI communication connection with the target terminal based on the WIFI communication address;
and the WIFI communication module continues to receive the target data through the WIFI communication connection and transmits the target data to the data processing module.
In a third aspect, an embodiment of the present application provides a display device, which includes a processor and a memory, where the memory stores at least one instruction, at least one program, a code set, or a set of instructions, and the at least one instruction, the at least one program, the code set, or the set of instructions is loaded and executed by the processor to implement the Micro-LED display method based on a short-range communication technology according to the second aspect.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, in which at least one instruction, at least one program, a code set, or a set of instructions are stored, and the at least one instruction, the at least one program, the code set, or the set of instructions are loaded and executed by a processor to implement the Micro-LED display method based on short-range communication technology according to the second aspect.
In summary, the present application has the following beneficial effects:
according to the Micro-LED display device disclosed by the embodiment of the application, the short-distance communication module is firstly connected with the target terminal in a short-distance communication mode, target data are received through the short-distance communication connection, and then the data are analyzed into driving pulse signals through the data processing module, so that the Micro-LED display array is driven through the Micro-LED driving circuit to display the target data. Therefore, on one hand, the Micro-LED is used as a basic device of the display screen, the backlight technology of the liquid crystal display screen is not needed for displaying, the power consumption of the display screen is very low, the national low-carbon development strategy and the realization of the carbon neutralization target are met, and the Micro-LED has ultrahigh resolution, response speed and color saturation and longer service life in an active driving mode, can bring higher visual experience to users with various requirements, and therefore meets the development requirements of the next generation of display technology. On the other hand, the data are transmitted through the short-distance communication module, the data transmission device has the advantages of convenience in transmission and easiness in carrying, a data line and a corresponding interface are not needed, the data can be directly transmitted and displayed after the short-distance communication connection is successfully established, the data display efficiency is improved, and therefore the data transmission device has a great application prospect.
Drawings
FIG. 1 is a schematic structural diagram of a Micro-LED display device according to an embodiment of the present application;
FIG. 2 is a flow chart illustrating the functional implementation of a Micro-LED display device according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a Micro-LED display device according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a Micro-LED display device according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a Micro-LED display device according to an embodiment of the present disclosure;
FIG. 6 shows an active addressing driving circuit for Micro-LED according to an embodiment of the present application;
reference numerals are as follows: 100. a Micro-LED display device; 101. a short-range communication module; 1011. a Bluetooth pairing unit; 1012. a data receiving unit; 102. a data processing module; 1021. a data storage unit; 1022. a data processing unit; 103. a Micro-LED drive circuit; 104. a Micro-LED display array; 105. and a WIFI communication module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to fig. 1-6 and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
The embodiment of the application provides a Micro-LED display device based on a short-distance communication technology, as shown in fig. 1, the Micro-LED display device 100 may at least include a short-distance communication module 101, a data processing module 102, a Micro-LED driving circuit 103 and a Micro-LED display array 104, where the short-distance communication module 101 may be a module for performing data transmission based on the short-distance communication technology, and specifically may be a bluetooth module, an NFC module, and the like; the data processing module 102 may be a module with a data processing function, and in this embodiment, may specifically be a module with an image processing function; the Micro-LED display array 104 may include a large number of Micro-LEDs arranged in an array, and each pixel of the Micro-LED display array 104 is one or more Micro-LED light sources (hereinafter, referred to as pixel LEDs); the Micro-LED driving circuit 103 may be a circuit for driving the Micro-LED display array 104, and specifically, the switching and the brightness of each pixel LED in the Micro-LED display array 104 may be controlled by high-frequency modulation pulses.
Optionally, the basic structure of the pixel point LED may at least include a substrate, an n-GaN layer, an InGaN/GaN quantum well layer, and a p-GaN epitaxial layer, and each pixel point LED may be set to any shape according to actual needs.
The substrate may be a silicon substrate, a silicon carbide substrate, a GaN substrate, a sapphire substrate, a flexible PET substrate, or other lattice-matched substrates.
Optionally, the size of each pixel point LED may be 1-20 μm; the particle size of each pixel in the Micro-LED display array 104 may be within 0.05 mm.
When the Micro-LED driving circuit 103 supplies power to the Micro-LED display array 104, the received driving current pulse signal may be screened, so as to drive each pixel LED at a corresponding time, and finally display the entire data content of one frame within one frame time.
In practical applications, the Micro-LED display device 100 may receive data based on a short-range communication technology, and display the data content in the Micro-LED display array 104 after parsing and converting the data, and the specific processing flow thereof may be as shown in fig. 2:
in step 201, the short-range communication module 101 receives a communication request of a target terminal, and establishes a short-range communication connection with the target terminal.
Wherein the target terminal may be any source terminal of data that needs to be displayed on the Micro-LED display device 100.
In an implementation, when displaying data using the Micro-LED display device 100, a user may first establish a short-range communication connection between a target terminal and the Micro-LED display device 100. Specifically, the target terminal may also be provided with a short-range communication module 101, and the user may operate the short-range communication module 101 of the target terminal to send a communication request to the Micro-LED display device 100. In this way, the short-range communication module 101 of the Micro-LED display device 100 may receive the communication request, and thus may establish a short-range communication connection with the target terminal.
In step 202, the short-range communication module 101 receives the target data sent by the target terminal through the short-range communication connection, and transmits the target data to the data processing module 102.
Wherein the target data may be data that needs to be displayed on the Micro-LED display device 100.
In an implementation, after the target terminal establishes the short-range communication connection with the Micro-LED display device 100, the target terminal may transmit the target data to the Micro-LED display device 100 based on the short-range communication connection. Accordingly, the short-range communication module 101 of the Micro-LED display device 100 may continuously receive the target data transmitted by the target terminal through the short-range communication connection, and transmit the data content of the received target data to the data processing module 102 of the Micro-LED display device 100.
Optionally, as shown in fig. 3, the short-range communication module 101 may include a bluetooth pairing unit 1011 and a data receiving unit 1012, where the bluetooth pairing unit 1011 may compare, analyze, and match the received data through a bluetooth algorithm and a bluetooth protocol stored in a software application layer, so as to complete bluetooth pairing after identifying a bluetooth address (i.e. a specific 48-bit BD _ ADDR address code) of the target terminal, so as to implement connection between the Micro-LED display device 100 and a wireless bluetooth signal of the target terminal.
The short-distance communication module 101 can adopt a Bluetooth 5.0 technology, and the highest transmission rate can reach 24 Mbps; the effective distance can reach 300 meters.
Based on the above settings, the processing of steps 201 and 202 may be as follows, respectively: the Bluetooth pairing unit 1011 receives a Bluetooth pairing request of a target terminal and establishes Bluetooth communication connection with the target terminal;
the data receiving unit 1012 receives target data transmitted from a target terminal through a bluetooth communication connection, and transmits the target data to the data processing module 102.
In an implementation, a user may start a bluetooth pairing function of a target terminal, and the bluetooth pairing unit 1011 of the target terminal may generate a digital code signal with a frequency specified by a frequency hopping technology, that is, may interpret as a bluetooth pairing request. Then, the user may control the bluetooth pairing unit 1011 of the Micro-LED display device 100 to perform frequency hopping at a frequency of 1600 hops per second, keep synchronizing with the frequency modulation period of the bluetooth pairing unit 1011 of the target terminal, and may pair with the bluetooth pairing unit 1011 of the target terminal through a service discovery protocol SDP and a logical link control and adaptation protocol of a preset bluetooth core protocol layer.
After the target terminal displays that the bluetooth pairing is successful, it is indicated that the bluetooth communication connection between the target terminal and the Micro-LED display device 100 is established, the user may operate the target terminal to send target data to the Micro-LED display device 100 through the bluetooth communication connection, and the target data may be transmitted to the data receiving unit 1012 of the Micro-LED display device 100 through a radio frequency signal by the target terminal after being encoded. Accordingly, the data receiving unit 1012 of the Micro-LED display device 100 may receive the target data through the bluetooth communication connection, decode the target data by using the pre-stored bluetooth communication protocol, and transmit the decoded target data to the data processing module 102.
It is worth mentioning that the data receiving unit 1012 may include a bluetooth hardware portion, which may include a wireless transceiver, a baseband controller and a link management layer, and a bluetooth application layer protocol, which may be used to decode the received target data and convert the decoded data into binary data for loading by the data processing module 102.
In step 203, the data processing module 102 parses the target data into a driving current pulse signal, and transmits the driving current pulse signal to the Micro-LED driving circuit 103.
In an implementation, after the data processing module 102 of the Micro-LED display device 100 receives the target data transmitted by the short-distance communication module 101, the target data may be converted from a digital signal into an electrical signal, that is, the target data may be analyzed into a driving current pulse signal, and further, the driving current pulse signal may be transmitted to the Micro-LED driving circuit 103.
Alternatively, as shown in fig. 4, the data processing module 102 may include a data storage unit 1021 and a data processing unit 1022, and accordingly, the processing of step 203 may be as follows: the data storage unit 1021 stores the target data transmitted by the short-distance communication module 101; the data processing unit 1022 reads the target data from the data storage unit 1021, and parses the target data into a driving current pulse signal, which is transmitted to the Micro-LED driving circuit 103.
The data storage unit 1021 may be configured to temporarily store the decoded target data, and send the temporarily stored data content to the data processing unit 1022 after the data processing unit 1022 completes the processing of the previous data content; the data storage unit 1021 can be a RAM storage with various types, and the storage capacity can be set to be more than 100M; the data processing unit 1022 may be configured to process the data content sent by the data storage unit 1021, re-encode the data content, modulate the high-frequency clock signal into the driving current pulse signal of the Micro-LED display array 104 by a pulse modulation method according to the encoded data content, and adjust the intensity of the driving current pulse signal by level conversion to drive the Micro-LED display array 104.
In an implementation, the data storage unit 1021 may receive and buffer the target data transmitted from the short-range communication module 101, and continuously sequentially transmit the data content of the buffered target data to the data processing unit 1022 according to the data processing speed of the data processing unit 1022. The data processing unit 1022 may analyze the target data in units of frames, convert the data content into a high-frequency driving current pulse signal after pulse modulation, and extend the width of the current pulse through a delay unit, so as to control the brightness of each pixel LED in the Micro-LED display array 104, where if the color of the pixel LED to be displayed is darker and the gray scale is smaller, the corresponding driving current pulse signal is narrower.
Optionally, the data processing unit 1022 may be, but is not limited to, an FPGA programmable logic device, various types of single-chip microcomputers, and other various types of microprocessors with programming functions.
In step 204, the Micro-LED driving circuit 103 controls the Micro-LED display array 104 to display the target data based on the driving current pulse signal.
In implementation, after receiving the driving current pulse signal transmitted by the data processing module 102 of the Micro-LED display device 100, the Micro-LED driving circuit 103 may transmit the driving current pulse signal to each pixel LED in the Micro-LED display array 104 to control the Micro-LED display array 104 to display target data, that is, to convert the electrical signal into an optical signal recognizable by human eyes. Specifically, the Micro-LED driving circuit 103 may scan and address the Micro-LED display array 104 based on target data in each refresh frame of the Micro-LED display array 104, and generate a driving current signal of each pixel point LED in the Micro-LED display array 104, so as to control the on/off and gray scale of each pixel point LED.
Optionally, when analyzing the target data, the data processing module 102 may adjust the target data based on the resolution of the Micro-LED display array 104, and the corresponding processing may be as follows: the data processing module 102 adjusts the resolution of the target data according to the resolution of the Micro-LED display array 104; the data processing module 102 analyzes the target data with the adjusted resolution into a driving current pulse signal, and transmits the driving current pulse signal to the Micro-LED driving circuit 103.
In an implementation, the data processing module 102 may record the resolution of the Micro-LED display array 104, i.e. the number of pixels included in the Micro-LED display array 104, for example, the resolution of the Micro-LED display array 104 is 8K, i.e. 7680 × 4320 pixels are included. Based on this, after the target data transmitted by the short-distance communication module 101 is acquired, the data processing module 102 may adjust the resolution of the target data according to the resolution of the Micro-LED display array 104. And if the resolution of the target data is greater than that of the Micro-LED display array 104, compressing the target data, and if the resolution of the target data is less than that of the Micro-LED display array 104, interpolating and amplifying the target data. Then, the data processing module 102 may analyze the target data with the adjusted resolution, generate a driving current pulse signal, and transmit the driving current pulse signal to the Micro-LED driving circuit 103.
Optionally, when analyzing the target data, the data processing module 102 may refer to a display mode set by a user to generate a corresponding driving current pulse signal, and the corresponding processing may be as follows: the data processing module 102 analyzes the target data according to the resolution of the target data and a preset resolution display mode to generate a driving current pulse signal,
in an implementation, a user may set different resolution display modes at the Micro-LED display device 100, and the different resolution display modes may correspond to a plurality of finenesses from high to low, so that the data processing module 102 may record the resolution display modes. Before sending the target data to the Micro-LED display device 100 through the target terminal, the user may set a resolution display mode of the target data at the Micro-LED display device 100. In this way, after the data processing module 102 in the Micro-LED display device 100 obtains the target data, the actual display resolution of the target data in the Micro-LED display array 104 may be set according to the resolution of the target data and the resolution display mode preset by the user. Further, the Micro-LED display device 100 analyzes the target data according to the actual display resolution to generate a driving current pulse signal.
Optionally, as shown in fig. 5, the Micro-LED display device 100 may further include a WIFI communication module 105, and correspondingly, the short-distance communication module 101, and is further configured to obtain a WIFI communication address of the target terminal and transmit the WIFI communication address to the WIFI communication module 105; the data processing module 102 is further configured to calculate a minimum transmission rate required by the target data, and send a WIFI connection establishment instruction to the WIFI communication module 105 if the minimum transmission rate is greater than an upper limit of a bandwidth of the short-distance communication module 101; the WIFI communication module 105 is used for responding to a WIFI connection establishment instruction sent by the data processing module 102 and establishing a WIFI communication connection with a target terminal based on a WIFI communication address; the WIFI communication module 105 is further configured to continue to receive the target data through the WIFI communication connection, and transmit the target data to the data processing module 102.
In implementation, when the short-range communication module 101 receives the target data through the short-range communication connection, the WIFI communication address of the target terminal may also be acquired, and the WIFI communication address may be transmitted to the WIFI communication module 105. Meanwhile, when the data processing module 102 parses the target data, the minimum transmission rate required by the target data may be calculated, and the minimum transmission rate may be compared with the upper limit of the bandwidth of the short-distance communication module 101. If the minimum transmission rate is greater than the upper limit of the bandwidth, the data processing module 102 may trigger establishment of the WIFI communication connection, that is, send a WIFI connection establishment instruction to the WIFI communication module 105. In this way, the WIFI communication module 105 may respond to the WIFI connection establishment instruction of the data processing module 102, and establish a WIFI communication connection with the target terminal based on the WIFI communication address. Further, the WIFI communication module 105 may continue to receive the target data based on the established WIFI communication connection and transmit the target data to the data processing module 102.
Optionally, the Micro-LED display array 104 may support three driving modes, namely, an active addressing driving mode, a passive addressing driving mode, and a semi-active addressing driving mode. In the active driving mode, each pixel LED may have an independent driving circuit, as shown in fig. 6, the driving circuit may include two transistors T1, T2 and a capacitor C1, where Vd is a driving current pulse, Vcc is a working voltage, after the scan line triggers T1 to turn on, the driving current pulse is firstly transmitted to the pixel LED through T1 and T2, the capacitor C1 stores voltage and power when T1 is turned on, and during the period when T1 is turned off and during the duration of the current display frame, C1 continuously provides a driving current to the pixel LED by maintaining the voltage at the gate of T2.
According to the Micro-LED display device disclosed by the embodiment of the application, the short-distance communication module is used for establishing short-distance communication connection with the target terminal, the target data is received through the short-distance communication connection, and then the data processing module is used for analyzing the data into the driving pulse signal, so that the Micro-LED display array is driven to display the target data through the Micro-LED driving circuit. Therefore, on one hand, the Micro-LED is used as a basic device of the display screen, the backlight technology of the liquid crystal display screen is not needed for displaying, the power consumption of the display screen is very low, the national low-carbon development strategy and the realization of the carbon neutralization target are met, and the Micro-LED has ultrahigh resolution, response speed and color saturation and longer service life in an active driving mode, can bring higher visual experience to users with various requirements, and therefore meets the development requirements of the next generation of display technology. On the other hand, the data are transmitted through the short-distance communication module, the data transmission device has the advantages of convenience in transmission and easiness in carrying, a data line and a corresponding interface are not needed, the data can be directly transmitted and displayed after the short-distance communication connection is successfully established, the data display efficiency is improved, and therefore the data transmission device has a great application prospect.
Based on the same technical concept, the embodiment of the application also provides a Micro-LED display method based on the short-distance communication technology, the method is applied to a Micro-LED display device, the Micro-LED display device comprises a short-distance communication module, a data processing module, a Micro-LED driving circuit and a Micro-LED display array, and the method comprises the following steps:
the short-distance communication module receives a communication request of a target terminal and establishes short-distance communication connection with the target terminal;
the short-distance communication module receives target data sent by the target terminal through the short-distance communication connection and transmits the target data to the data processing module;
the data processing module analyzes the target data into a driving current pulse signal and transmits the driving current pulse signal to the Micro-LED driving circuit;
and the Micro-LED driving circuit controls the Micro-LED display array to display target data based on the driving current pulse signal.
Optionally, the short-range communication module includes a bluetooth pairing unit and a data receiving unit;
the short-distance communication module receives a communication request of a target terminal and establishes short-distance communication connection with the target terminal, and the short-distance communication module comprises:
the Bluetooth pairing unit receives a Bluetooth pairing request of a target terminal and establishes Bluetooth communication connection with the target terminal;
and the data receiving unit receives the target data sent by the target terminal through the Bluetooth communication connection and transmits the target data to the data processing module.
Optionally, the data processing module includes a data processing unit and a data storage unit;
the data processing module analyzes the target data into a driving current pulse signal, and transmits the driving current pulse signal to the Micro-LED driving circuit, and the method comprises the following steps:
the data storage unit stores the target data transmitted by the short-distance communication module;
the data processing unit reads the target data from the data storage unit, analyzes the target data into a driving current pulse signal, and transmits the driving current pulse signal to the Micro-LED driving circuit.
Optionally, the controlling, by the Micro-LED driving circuit, the Micro-LED display array to display target data based on the driving current pulse signal includes:
and the Micro-LED driving circuit scans and addresses the Micro-LED display array based on the target data in each refreshing frame, and generates a driving current signal of each pixel point LED in the Micro-LED display array so as to control the on-off and gray scale of each pixel point LED.
Optionally, the analyzing, by the data processing module, the target data into a driving current pulse signal, and transmitting the driving current pulse signal to the Micro-LED driving circuit includes:
the data processing module adjusts the resolution of the target data according to the resolution of the Micro-LED display array;
the data processing module analyzes the target data with the adjusted resolution ratio into a driving current pulse signal and transmits the driving current pulse signal to the Micro-LED driving circuit.
Optionally, the analyzing, by the data processing module, the target data into a driving current pulse signal includes:
and the data processing module analyzes the target data according to the resolution of the target data and a preset resolution display mode to generate a driving current pulse signal, wherein the resolution display mode comprises a plurality of display modes with the fineness from high to low.
Optionally, the Micro-LED display device further includes a WIFI communication module;
the method further comprises the following steps:
the short-distance communication module acquires a WIFI communication address of the target terminal and transmits the WIFI communication address to the WIFI communication module;
the data processing module calculates the lowest transmission rate required by the target data, and if the lowest transmission rate is greater than the upper limit of the bandwidth of the short-distance communication module, a WIFI connection establishment instruction is sent to the WIFI communication module;
the WIFI communication module responds to a WIFI connection establishment instruction sent by the data processing module and establishes WIFI communication connection with the target terminal based on the WIFI communication address;
and the WIFI communication module continues to receive the target data through the WIFI communication connection and transmits the target data to the data processing module.
The embodiment of the application also provides a display device, which comprises a processor and a memory, wherein at least one instruction, at least one program, a code set or an instruction set is stored in the memory, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to realize the Micro-LED display method based on the short-distance communication technology.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the application in any way, and any features disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

Claims (10)

1. A Micro-LED display device based on short-distance communication technology is characterized by comprising a short-distance communication module, a data processing module, a Micro-LED driving circuit and a Micro-LED display array, wherein:
the short-distance communication module is used for receiving a communication request of a target terminal and establishing short-distance communication connection with the target terminal;
the short-distance communication module is further configured to receive target data sent by the target terminal through the short-distance communication connection, and transmit the target data to the data processing module;
the data processing module is used for analyzing the target data into a driving current pulse signal and transmitting the driving current pulse signal to the Micro-LED driving circuit;
the Micro-LED driving circuit is used for controlling the Micro-LED display array to display target data based on the driving current pulse signal.
2. A Micro-LED display device according to claim 1, wherein the short-range communication module comprises a bluetooth pairing unit and a data receiving unit, wherein:
the Bluetooth pairing unit is used for receiving a Bluetooth pairing request of a target terminal and establishing Bluetooth communication connection with the target terminal;
and the data receiving unit is used for receiving the target data sent by the target terminal through the Bluetooth communication connection and transmitting the target data to the data processing module.
3. A Micro-LED display device according to claim 1, wherein the data processing module comprises a data processing unit and a data storage unit, wherein:
the data storage unit is used for storing the target data transmitted by the short-distance communication module;
the data processing unit is used for reading the target data from the data storage unit, analyzing the target data into a driving current pulse signal, and transmitting the driving current pulse signal to the Micro-LED driving circuit.
4. A Micro-LED display device according to claim 1, wherein the Micro-LED driving circuit is specifically configured to:
and the Micro-LED driving circuit scans and addresses the Micro-LED display array based on the target data in each refreshing frame to generate a driving current signal of each pixel point LED in the Micro-LED display array so as to control the on-off and gray scale of each pixel point LED.
5. A Micro-LED display device according to claim 1, wherein the data processing module is specifically configured to:
adjusting the resolution of the target data according to the resolution of the Micro-LED display array;
and analyzing the target data with the adjusted resolution ratio into a driving current pulse signal, and transmitting the driving current pulse signal to the Micro-LED driving circuit.
6. A Micro-LED display device according to claim 1, wherein the data processing module is further configured to:
and analyzing the target data according to the resolution of the target data and a preset resolution display mode to generate a driving current pulse signal, wherein the resolution display mode comprises a plurality of display modes with fineness from high to low.
7. A Micro-LED display device according to claim 1, further comprising a WIFI communication module;
the short-distance communication module is also used for acquiring a WIFI communication address of the target terminal and transmitting the WIFI communication address to the WIFI communication module;
the data processing module is further configured to calculate a minimum transmission rate required by the target data, and send a WIFI connection establishment instruction to the WIFI communication module if the minimum transmission rate is greater than an upper limit of a bandwidth of the short-distance communication module;
the WIFI communication module is used for responding to a WIFI connection establishment instruction sent by the data processing module and establishing WIFI communication connection with the target terminal based on the WIFI communication address;
the WIFI communication module is further configured to continue to receive the target data through the WIFI communication connection, and transmit the target data to the data processing module.
8. A Micro-LED display method based on a short-distance communication technology is applied to a Micro-LED display device, the Micro-LED display device comprises a short-distance communication module, a data processing module, a Micro-LED driving circuit and a Micro-LED display array, and the method comprises the following steps:
the short-distance communication module receives a communication request of a target terminal and establishes short-distance communication connection with the target terminal;
the short-distance communication module receives target data sent by the target terminal through the short-distance communication connection and transmits the target data to the data processing module;
the data processing module analyzes the target data into a driving current pulse signal and transmits the driving current pulse signal to the Micro-LED driving circuit;
and the Micro-LED driving circuit controls the Micro-LED display array to display target data based on the driving current pulse signal.
9. A display device comprising a processor and a memory, the memory having stored therein at least one instruction, at least one program, a set of codes, or a set of instructions, the at least one instruction, the at least one program, the set of codes, or the set of instructions being loaded and executed by the processor to implement the Micro-LED display method based on short-range communication technology according to claim 8.
10. A computer readable storage medium having stored therein at least one instruction, at least one program, a set of codes, or a set of instructions, which is loaded and executed by a processor to implement the Micro-LED display method based on short-range communication technology according to claim 8.
CN202210552326.XA 2022-05-20 2022-05-20 Micro-LED display device and method based on short-distance communication technology Pending CN114927088A (en)

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