WO2014082433A1 - Led显示器 - Google Patents

Led显示器 Download PDF

Info

Publication number
WO2014082433A1
WO2014082433A1 PCT/CN2013/076604 CN2013076604W WO2014082433A1 WO 2014082433 A1 WO2014082433 A1 WO 2014082433A1 CN 2013076604 W CN2013076604 W CN 2013076604W WO 2014082433 A1 WO2014082433 A1 WO 2014082433A1
Authority
WO
WIPO (PCT)
Prior art keywords
constant current
led
tube
display panel
control
Prior art date
Application number
PCT/CN2013/076604
Other languages
English (en)
French (fr)
Inventor
卢长军
刘志勇
Original Assignee
利亚德光电股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 利亚德光电股份有限公司 filed Critical 利亚德光电股份有限公司
Priority to KR1020157016588A priority Critical patent/KR20150088837A/ko
Priority to EP13858651.6A priority patent/EP2927900A4/en
Priority to JP2015544316A priority patent/JP2016505879A/ja
Priority to US14/648,659 priority patent/US20150310800A1/en
Priority to CA2893176A priority patent/CA2893176A1/en
Publication of WO2014082433A1 publication Critical patent/WO2014082433A1/zh

Links

Classifications

    • 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]
    • 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]
    • G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
    • 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]
    • G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3266—Details of drivers for scan electrodes
    • 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]
    • G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3275—Details of drivers for data electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0278—Details of driving circuits arranged to drive both scan and data electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/06—Details of flat display driving waveforms
    • G09G2310/061—Details of flat display driving waveforms for resetting or blanking
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD

Definitions

  • the present invention relates to the field of LED devices, and in particular to an LED display.
  • Current LED display unit boards are designed to be discretely placed by LEDs, P-MOS tubes, and LED drive circuits.
  • the LED particles in the figure are four-legged R/G/B common-yang three-in-one LED, one pin is a common anode, and 2/3/4 are cathodes of B/G/R three-primary LEDs respectively;
  • the external display driving circuit 30' has a constant current control signal output port of one of the control ports, and two rows of power supply control ports, which cooperate with each other to realize LED array display work.
  • FIG. 1A the LED driving circuit includes three logic circuits and corresponding constant current channel groups thereof, which are LED driving control circuits for controlling R/G/B display in the LED unit board, respectively.
  • the internal structure of the circuit is the same, and the LED array display is driven under the control of the external display driving circuit 30'.
  • the current LED driving circuit includes a plurality of independent constant current logic elements to form a constant current array; each constant current logic element is composed of a constant current input terminal, a constant current output terminal, and a constant current control terminal, and a constant current of the constant current array
  • the output terminal is connected to the external pin GND of the LED driving circuit;
  • the constant current array is uniformly controlled by the internal logic circuit of the LED driving circuit, and the independent constant current logic components are operated in an orderly manner to control the display of the external LED;
  • the internal logic circuit also includes
  • the LED driving circuit has two parts, an input signal port and an output signal port, wherein the input signal port is connected to the constant current control signal output port of the external display driving circuit 30', and the output signal port is used for cascading the input signal port of the next-level LED driving circuit. Or vacant; the P-MOS component shown in Figure lc is controlled by the row power control port to achieve progressive power supply control of the LED array.
  • the LED unit board is composed of M rows*N columns of LED matrix arrangement, the anode of the single row LED is interconnected to the drain of the P-MOS, and the common cathode of the single column LED color is interconnected to the constant current input end of the LED driving circuit; P-MOS
  • the source is connected to the power supply terminal VCC, and the gate is connected to the row power supply control port; under the control of the display drive circuit 30', the drain Drain of a certain P-MOS is turned on for the LED of this row.
  • the anode is powered, and the constant current control signal output port controls the logic circuit of the LED driving circuit to control the orderly conduction of the constant current array, and realizes the orderly conduction of the LED current to the GND to realize the orderly lighting of the LED.
  • FIGS. 2a to 2c are schematic diagrams of discrete placement circuits of an LED driving circuit of a 6-legged R/G/B three-in-one LED according to the prior art.
  • the anode of each 6-leg R/G/B 3-in-1 LED in Figure 2b has 3 pins, respectively 1, 2, 3, corresponding to the internal R/G/B anode, and the cathode has 3 leads.
  • the LED unit board consists of M rows * N columns of LED matrix arrangement, the anode of the single row LED is interconnected to the drain of the P-MOS (Drain
  • the common primary color cathode of the single column LED is interconnected to the input end of the LED driving circuit; the source of the P-MOS is connected to the power supply terminal VCC, and the gate is connected to the power supply control logic portion of the display driving circuit 30'.
  • Drain is a group of LED anodes connected to the LED unit board (in the figure, a single row of LEDs, the actual definition of the group is not defined as a single line); the control end of the LED drive control circuit and a branch of the control part of the LED drive circuit
  • the circuit connection, the driving current of the LED lighting flows from the cathode (4, 5, 6 pins) of the LED through the input end of the LED driving circuit and the output end of the LED driving circuit to the GND;
  • the display driving circuit 30' includes the line power supply control logic Part and LED drive circuit control part, under its control, realize LED unit board It shows work.
  • 3a to 3c are schematic diagrams of discrete placement circuits of an LED driving circuit of an R/G/B independent LED according to the prior art.
  • the anode of the R/G/B independent LED particles is pin 1, the cathode is pin 2, and the R/G/B is soldered in parallel as a full-color pixel;
  • the LED cell board consists of M rows.
  • the anode of the single row LED is interconnected to the drain of the P-MOS, the common primary color cathode of the single column LED is interconnected to the input of the LED drive control circuit;
  • the source connection of the P-MOS To the power supply terminal VCC the gate is connected to the power supply control logic portion of the display driver circuit 30', and the drain (Drain) is connected to a group of LED anodes of the LED unit board (a single row of LEDs in Fig.
  • the control end of the LED drive circuit is connected to a branch of the control part of the LED drive circuit, and the drive current for the LED lighting flows from the cathode (2 pin) of the LED particle through the input end of the LED drive circuit and
  • the output end of the LED driving circuit is connected to the GND;
  • the display driving circuit 30' includes a line power supply control logic portion and an LED driving circuit control portion, and under the control thereof, the LED unit board display operation is realized.
  • the typical operating voltage of the red LED is 1.8-2V
  • the typical operating voltage of the green and blue LEDs is 3.4-3.6V
  • the output voltage of the P-MOS must be greater than the typical voltage of the green and blue LEDs plus the typical constant current voltage of the LED driver circuit.
  • the main object of the present invention is to provide an LED display. Solve the above problem.
  • an LED display includes: an LED display panel; a display driving circuit, comprising: a driving circuit and a control circuit, wherein the driving circuit includes a first constant current channel group, a second constant current channel group and a third constant current channel group, wherein the first constant current channel group includes one or more constant current logic elements, wherein the first end of each constant current logic element is respectively connected to the first power supply device The power terminal is connected, and the third end of each constant current logic component is respectively connected to the first R display control subport of the drive control port of the control circuit, and the second end of each constant current logic component is respectively corresponding to the LED display panel a cathode connection of a red tube in each LED particle in the column for controlling display of a red tube of the LED display panel; a second constant current channel group including one or more constant current logic elements, wherein each constant The first ends of the flow logic components are respectively connected to the power terminals of the second power supply device, and the third ends of
  • the driving control circuit is configured to control, by the first R display control sub-port, each of the constant current logic elements in the first constant current channel group to be turned on, and each of the constant current logic elements is turned on, respectively corresponding to the constant current logic element.
  • the red tube in the LED particles in the LED display panel column provides a current path to control the display of the red tube of the LED particles in the LED display panel row corresponding to the FET;
  • the drive control circuit is also used to pass the first G
  • the display control sub-port controls each of the constant current logic elements in the second constant current channel group to be turned on, and each of the constant current logic elements is turned on, respectively, is a green light in the LED particles in the LED display panel column corresponding to the constant current logic element
  • the tube provides a current path to control display of the green light tube of the LED particles in the LED display panel row corresponding to the FET; and the drive control circuit is further configured to control the third constant current channel group through the first B display control sub-port Each of the constants The flow logic element is turned
  • the display driving circuit further includes: a switching circuit, wherein the first end of the switching circuit is connected to the ground end of the power supply device, the second end of the switch circuit is connected to the anode of the LED display panel; and the control circuit further comprises: power supply control The circuit, wherein the power supply control circuit is connected to the third end of the switch circuit through the power supply control port for controlling opening or closing of the switch circuit; wherein the switch circuit is used for controlling power supply to the LED display panel.
  • the switch circuit includes a sub-switch circuit, and the sub-switch circuit includes one or more FETs, wherein the source of each FET is respectively connected to the ground of the power supply device; the drain of each FET Connected to the cathodes of the respective LED particles in the corresponding rows in the LED display panel; and the gates of each of the FETs are respectively connected to corresponding ones of the power supply control ports.
  • the power supply control circuit is configured to control each FET to be turned on to supply power to the LED granules in the row of the LED display panel corresponding to the FET.
  • the FET is an N-MOS tube
  • the LED display panel comprises M rows and N columns of LED particles
  • each of the LED particles comprises a red tube, a green tube and a blue tube, wherein each row is i
  • the cathode of the red lamp in the LED particles, the cathode of the green lamp, and the cathode of the blue lamp are connected in parallel to the i-th node, and each node in each row is connected in parallel, respectively, and a corresponding N-MOS in the switch circuit.
  • the drain connection of the tube; the anodes of the red tubes of the respective LED particles in each column are respectively connected in parallel, as a terminal of the anode of the LED display panel, respectively corresponding to a constant current logic element in the first constant current channel group
  • the second end of the connection; the anodes of the green tubes of the respective LED particles in each column are respectively connected in parallel, as a terminal of the anode of the LED display panel, respectively corresponding to a constant current logic element in the second constant current channel group
  • the second end of the connection; and the anodes of the blue tubes of the respective LED particles in each column are respectively connected in parallel, as a terminal of the anode of the LED display panel, respectively, and the third constant A second end connected to a constant current logical channel group element corresponding.
  • the FET is an N-MOS tube
  • the LED display panel comprises M rows and N columns of LED particles
  • each of the LED particles comprises a red tube, a green tube and a blue tube, wherein each of the rows
  • the cathode of the red tube in the LED particle, the cathode of the green tube, and the cathode of the blue tube are connected in parallel, respectively connected to the drain of a corresponding N-MOS tube in the switching circuit;
  • each LED particle in each column The anodes of the red tubes are respectively connected in parallel, respectively connected to the second end of a corresponding constant current logic element in the first constant current channel group;
  • the anodes of the green tubes of the respective LED particles in each column are respectively connected in parallel, respectively Pair in the second constant current channel group
  • the second end of a constant current logic element is connected; and the anodes of the blue tubes of the respective LED particles in each column are respectively connected in parallel, respectively, corresponding to a corresponding one of the constant current logic elements in the third constant current channel group
  • the switch circuit includes a first sub-switch circuit and a second sub-switch circuit, wherein the first sub-switch circuit includes one or more FETs, and the source of each FET is respectively connected to the ground of the power supply device Connected, the drain of each FET is respectively connected to the cathode of the red tube in each LED particle in the corresponding row in the LED display panel, and the gate of each FET is respectively connected with the corresponding terminal in the power supply control port a power supply for controlling the red light tube of the LED display panel; and a second sub-switch circuit including one or more FETs, the source of each FET being respectively connected to the ground of the power supply device, each field
  • the drains of the effect tubes are respectively connected to the green tubes of the respective LED particles in the corresponding rows in the LED display panel and the cathodes of the blue tubes, and the gates of each FET are respectively connected to the corresponding terminals in the power supply control port.
  • the power supply control circuit is configured to control one of the FETs in the first sub-switch circuit to open, to red light in the LED granules in the row of the LED display panel corresponding to the FET in the first sub-switch circuit
  • the power supply control circuit is further configured to control the FET of the second switch circuit corresponding to one of the first sub-switch circuits to open to correspond to the FET in the first sub-switch circuit.
  • the driving control circuit is configured to control the conduction of each constant current logic element in the first constant current channel group through the second R display control sub port, After each constant current logic element is turned on, a current path is provided for the red light tube in the LED particles in the LED display panel column corresponding to the constant current logic element, respectively, to control the LED in the LED display panel row corresponding to the FET Display of the red tube of the particle; the drive control circuit is further configured to control the conduction of each constant current logic element in the second constant current channel group through the second G display control subport, each constant After the logic element is turned on, a current path is provided for the green lamp in the LED particles in the LED display panel column corresponding to the constant current logic element to control the green color of the LED particles in the LED display panel row corresponding to the FET.
  • the display of the lamp; and the drive control circuit is further configured to control, by the second B display control sub-port, each of the constant current logic elements in the third constant current channel group to be turned on, and after each of the constant current logic elements is turned on, respectively
  • the blue light tube in the LED particles in the LED display panel column corresponding to the flow logic element provides a current path to control the display of the blue light tube of the LED particles in the LED display panel row corresponding to the FET.
  • the FET is an N-MOS tube
  • the LED display panel comprises M rows and N columns of LED particles
  • each of the LED particles comprises a red tube, a green tube and a blue tube, wherein each row is i
  • the cathodes of the red tubes in the LED particles are connected in parallel to the i-th node, and the nodes in each row are connected in parallel, respectively connected to the drains of a corresponding one of the first sub-switch circuits;
  • the cathode of the green tube and the cathode of the blue tube in j LED particles are connected in parallel to the jth node, and the nodes in each row are connected in parallel, Do not connect to the drain of a corresponding one of the second sub-switch circuits;
  • the anodes of the red tubes of the respective LED particles in each column are respectively connected in parallel, respectively, corresponding to a corresponding one of the first constant current channel groups
  • the second ends of the flow logic elements are connected; the anodes of the green lamps of
  • the FET is an N-MOS tube
  • the LED display panel comprises M rows and N columns of LED particles, and each of the LED particles comprises a red tube, a green tube and a blue tube, wherein each of the rows
  • the cathodes of the red tubes in the LED particles are connected in parallel, respectively connected to the drains of a corresponding one of the first sub-switch circuits; the cathodes and blue lamps of the green tubes in the respective LED particles in each row
  • the cathodes of the tubes are connected in parallel and respectively connected to the drains of the corresponding one of the second sub-switch circuits; the anodes of the red tubes of the respective LED particles in each column are respectively connected in parallel, respectively, and the first constant current channel
  • the second end of the corresponding one of the constant current logic elements is connected; the anodes of the green tubes of the respective LED particles in each column are respectively connected in parallel, respectively, and the corresponding one of the constant current logic elements in the second constant current channel group The two ends are connected; the ano
  • the LED particles in the LED display panel include a red light tube, a green light tube, and a blue light tube, wherein the red light tube, the green light tube, and the blue light tube are integrated in the LED particles; or, the red light tube The green tube and the blue tube are separately packaged and disposed in the LED particles.
  • the driving circuit and the control circuit are integrated into the display driving circuit, so that more display driving circuits can be placed under the condition that the original LED display panel area is constant, so that on a certain area of the LED display, The ratio of the number of LED particles to the display driving circuit is reduced, and the refresh rate is improved, and the driving circuit includes a first constant current channel group, a second constant current channel group, and a third constant current channel group, and three constant current channel groups.
  • the driving circuit includes a first constant current channel group, a second constant current channel group, and a third constant current channel group, and three constant current channel groups.
  • the operating voltage can reduce the power consumption of the LED display.
  • FIG. 1a is a schematic diagram of a discrete arrangement of LED driving circuits of three-in-one LED particles according to the prior art
  • FIG. 1b is a partial enlarged view of a broken line portion A in FIG. 1a
  • FIG. 2a is a schematic diagram of a discrete arrangement circuit of an LED driving circuit of a 6-legged R/G/B three-in-one LED according to the prior art
  • FIG. 2b is a broken line portion B in FIG.
  • FIG. 2a Figure 2c is a partial enlarged view of the dotted line portion B1 of Figure 2b;
  • Figure 3a is a schematic diagram of a discrete placement circuit of the LED driving circuit of the R/G/B independent LED according to the prior art;
  • Figure 3b is a diagram 3a is a partially enlarged view of a broken line portion C in FIG. 3b;
  • FIG. 3c is a partially enlarged view of a broken line portion C1 in FIG. 3b;
  • FIG. 4 is a schematic structural view of an LED display according to a first embodiment of the present invention;
  • FIG. 5a is a detailed structural diagram of an LED display according to the preferred embodiment shown in FIG. 5 of the present application;
  • FIG. 5b is a partial enlarged view of a broken line portion D in FIG.
  • FIG. 6b is a partial enlarged view of a broken line portion E in FIG. 6a
  • FIG. 6c is a partial enlarged view of a broken line portion E1 in FIG. 6b;
  • FIG. 7a is an enlarged view of an embodiment of the present invention according to an embodiment of the present invention
  • a schematic diagram of the structure of three LED displays
  • Figure 7b is a partial enlarged view of the broken line portion F in Figure 7a
  • Figure 7c is a partial enlarged view of the broken line portion F1 in Figure 7b
  • Figure 7d is a partial enlarged view of the switching circuit at the broken line portion G in Figure 7a
  • Figure 7e Is a partial enlarged view of the dotted line portion G1 in Fig. 7d
  • Fig. 8a is a schematic structural view of the LED display according to the fourth embodiment of the present invention
  • Fig. 8b is a partial enlarged view of the broken line portion H in Fig. 8a
  • Fig. 8c is a view in Fig.
  • FIG. 8b A partially enlarged view of a dotted line portion HI;
  • FIG. 9a is a schematic structural view of an LED display according to a fifth embodiment of the present invention;
  • Fig. 9b is a partial enlarged view of a broken line portion I in Fig. 9a;
  • Fig. 9c is a broken line portion II of Fig. 9b
  • Figure 10a is a schematic view showing the structure of an LED display according to a sixth embodiment of the present invention;
  • Figure 10b is a partial enlarged view of a broken line portion J in Figure 10a;
  • Figure 10c is a partial portion of the dotted line portion J1 in Figure 10b.
  • Fig. 10d is a partial enlarged view of a broken line portion K in Fig. 10a;
  • Fig. 10d is a partial enlarged view of a broken line portion K in Fig. 10a;
  • Fig. 10d is a partial enlarged view of a broken line portion K in Fig. 10a;
  • FIG. 4 is a schematic structural diagram of an LED display according to Embodiment 1 of the present invention. As shown in FIG. 4, the LED display includes: an LED display panel 10; a display driving circuit 30, comprising: a driving circuit 33 and a control circuit 35.
  • the driving circuit 33 includes a first constant current channel group 331 and a second constant current channel group 333. And a third constant current channel group 335, wherein the first constant current channel group 331 includes one or more constant current logic elements, wherein a first end of each constant current logic element is respectively connected to a power end of the first power supply device 51, and each constant current The third end of the logic component is respectively connected to the first R display control subport of the drive control port of the control circuit, and the second end of each constant current logic component is respectively red with each LED particle in the corresponding column in the LED display panel a cathode connection of the lamp tube for controlling display of the red lamp tube of the LED display panel; a second constant current channel group 333 comprising one or more constant current logic elements, wherein the first end of each constant current logic element is respectively Connected to the power supply end of the second power supply device 53, the third end of each constant current logic component is respectively connected to the first G display control subport of the drive control port of the control circuit, and the second end of each constant current logic
  • the driving circuit 33 and the control circuit 35 are integrated into the display driving circuit 30, so that in the case where the original LED display panel 10 has the same area, more display driving circuits 30 can be placed, so that the area is constant.
  • the driving circuit 33 includes the first constant current channel group 331, the second constant current channel group 333, and the third constant current.
  • the channel group 335, the three constant current channel groups respectively control the ordered display of the R/G/B primary colors in the M row*N column LED particle arrays in the LED display panel 10, and the red color of the LED particles in the LED display panel 10.
  • the lamp and the blue/green tube provide different operating voltages respectively, which can reduce the power consumption of the LED display.
  • the problem that the control circuit 35 of the LED display occupied by the prior art has a large PCB area and a low refresh rate is solved, and the control circuit 35 of the LED display occupies a small area of the panel, has a simple design, a high refresh rate, and a small power consumption. .
  • the first power supply device, the second power supply device, and the third power supply device are not shown in FIG. 4, and the power supply voltage of the first power supply device to the first constant current channel group is preferably 1.6V, and the voltage value is determined by green and blue.
  • the typical operating voltage of the LED (3.4-3.6V) is obtained by subtracting the typical operating voltage of the red LED (1.8-2V), and the supply voltage of the first power supply device to the first constant current channel group is lower than that of the second power supply device and The third power supply device respectively supplies power to the second constant current channel group/third constant current channel group.
  • the LED display may include: an LED display panel 10; a display driving circuit 30, including: a switch circuit 31, a drive circuit 33, and a control circuit 35, wherein the first end of one of the switch circuit 31 and the drive circuit 33 is connected to the power supply device a power supply end, the other end of which is connected to the ground end of the power supply device; the second end of one of the switch circuit 31 and the drive circuit 33 is connected to the anode of the LED display panel 10, and the second end of the other is connected to the LED display panel
  • the cathode connection of 10; the control circuit 35 includes: a power supply control circuit 351 and a drive 353, wherein the power supply control circuit 351 is connected to the third end of the switch circuit 31 through the power supply control port for controlling the opening or closing of the switch circuit 31.
  • the drive control circuit 353 is connected to the third end of the drive circuit 33 through the drive control port for controlling the on or off of the drive circuit 33.
  • the switch circuit 31 is used to control the power supply to the LED display panel 10, and the drive circuit 33 is used to control the orderly display of the LED display panel 10.
  • the switch circuit 31 is used to control the power supply to the LED display panel 10
  • the drive circuit 33 is used to control the orderly display of the LED display panel 10.
  • FIG. 5 is a schematic structural view of an LED display according to a preferred embodiment of the present invention
  • FIG. 5a is a detailed structural diagram of an LED display according to the preferred embodiment shown in FIG. 5 of the present application
  • FIG. 5b is a broken line portion D of FIG. A partial enlarged view
  • Fig. 5c is a partial enlarged view of the broken line portion D1 in Fig. 5b.
  • the display driving circuit in the display may further include: a switch circuit 31, wherein the first end of the switch circuit 31 is connected to the ground end of the power supply device, and the second end of the switch circuit 31 and the LED display panel
  • the control circuit in the display may further include: a power supply control circuit, wherein the power supply control circuit is connected to the third end of the switch circuit through the power supply control port for controlling opening or closing of the switch circuit 31; wherein, the switch The circuit 31 is used to control the supply of power to the LED display panel.
  • the switch circuit 31 may include a sub-switch circuit including one or more field effect transistors, wherein the source of each FET is respectively connected to the power terminal of the power supply device.
  • the driving circuit 33 may include a constant current channel group including one or more constant current logic elements, wherein the first end of each constant current logic element is respectively connected to the power supply device The power terminal or the ground terminal is connected; the second end of each constant current logic component is respectively in a corresponding column in the LED display panel 10 The anode or cathode of the LED particles are connected; the third end of each constant current logic element is respectively connected to a corresponding terminal of the drive control port.
  • the power supply control circuit 351 is configured to control each FET to be turned on to supply power to the LED particles in the row of the LED display panel 10 corresponding to the FET;
  • the drive control circuit 353 is configured to control the constant current channel group Each of the constant current logic elements is turned on, and each of the constant current logic elements is turned on to provide a current path for the LED particles in the column of the LED display panel 10 corresponding to the constant current logic element to control the ordered display of the LED particles.
  • the FET may be a P-MOS tube
  • the LED display panel 10 includes M rows and N columns of LED particles, and each of the LED particles includes a red tube, a green tube, and a blue tube, wherein each row The anode of the red tube, the anode of the green tube, and the anode of the blue tube in the i-th LED particle are connected in parallel to the i-th node, and each node in each row is connected in parallel, and respectively corresponding to one of the switch circuits 31.
  • the drain of the P-MOS tube is connected; the cathodes of the red tubes of the respective LED particles in each column are respectively connected in parallel, and are respectively connected to the second end of a corresponding constant current logic element in the constant current channel group; The cathodes of the green lamps of the respective LED particles are respectively connected in parallel, and respectively connected to the second end of a corresponding constant current logic element in the constant current channel group; the cathodes of the blue lamps of the respective LED particles in each column are respectively connected in parallel And respectively connected to the second end of a corresponding constant current logic element in the constant current channel group.
  • l ⁇ i ⁇ N i is a natural number
  • the red, green, and blue tubes may be R/G/B primary light emitting diodes, respectively.
  • FIG. 5b is a partial enlarged view of a portion D covered by a broken line in FIG. 5a
  • the LED particles shown in FIG. 5c are partially enlarged views of a portion D1 covered by a broken line in FIG. 5b.
  • pin 1 is a common anode
  • 2/3/4 is a cathode of a B/G/R trichromatic LED.
  • the display driving circuit 30 includes a sub-switch circuit, a constant current channel group, and a control circuit 35.
  • the sub-switch circuit 31 includes N P-MOS transistors, wherein the drain of each P-MOS transistor serves as one of the output pins of the control circuit 35, and the source of the P-MOS transistor is connected to the display driver.
  • the power supply terminal of the circuit 30 ie, the VCC terminal
  • the gate of the P-MOS transistor is connected to one of the power supply control ports of the control circuit 35;
  • the constant current channel group may include N constant current logic components (also referred to as a constant current logic circuit), a second end of each constant current logic element (in this embodiment, an input terminal of the constant current logic element) as one of the input pins of the display driving circuit 30, respectively, all of the constant current logic elements
  • the first end ie, the output end
  • the ground end (ie, the GND end) of the display driving circuit 30 is connected to the ground end of the power supply device, and the third end of the constant current logic element (in this embodiment, the constant current)
  • the control terminal of the logic element is coupled to the
  • the LED display panel 10 (which may be referred to as an LED unit, which may also be referred to as an LED unit board) includes a matrix arrangement of M rows*N columns of LED particles, wherein the anode interconnection of the single row of LED particles is connected to the ith a node connecting each node to an output pin corresponding to the drain of one P-MOS transistor of the sub-switch circuit 31 in the switch circuit 31, and a cathode of the same primary color in the single column of LED particles is interconnected to the constant current channel of the display drive circuit 30
  • the input end of the set of constant current logic elements that is, the common cathode of the red light tube (ie, the R light emitting diode) in the single row of LED particles is connected to the constant current logic element input end of the constant current channel group of the display driving circuit 30; the single column LED A common cathode interconnection of green light tubes (ie, G-based light-emitting diodes) in the particles is connected to a constant current logic element
  • the LED display panel 10 is controlled by the display driving circuit 30, and the power supply control circuit 351 controls one of the P-MOS transistors in the sub-switch circuit 31 (which may be a P-MOS channel group) to be turned on by the power supply control port.
  • the positive electrode of the LED particles in the corresponding row on the display panel 10 is powered, and the drive control circuit 353 outputs a constant current control signal to each constant current logic component in the constant current channel group through the drive control port to control each constant current logic component to be The working state of the conduction, thereby providing a current path for the primary color cathode of the corresponding column of LED particles, and achieving an orderly display of the LED unit.
  • the primary color cathode of the corresponding column of LED particles comprises a cathode of R G B three primary colors, that is, an ordered display of red, green and blue lamps respectively corresponding to the LED particles in the column.
  • the field effect transistor may be a P-MOS tube
  • the LED display panel 10 includes M rows and N columns of LED particles, and each of the LED particles includes a red tube, a green tube, and a blue tube.
  • the anode of the red tube, the anode of the green tube, and the anode of the blue tube in each LED particle in each row are connected in parallel, and is connected to the drain of a corresponding P-MOS tube in the switch circuit 31;
  • the cathodes of the red tubes of the respective LED particles in each column are respectively connected in parallel, respectively connected to the second end of a corresponding constant current logic element in the constant current channel group;
  • the cathode of the green tube of each LED particle in each column Connected in parallel, respectively connected to the second end of a corresponding constant current logic element in the constant current channel group;
  • the cathodes of the blue light tubes of each LED particle in each column are respectively connected in parallel, respectively corresponding to the constant current channel group
  • the second end of a constant current logic element is connected.
  • the anode interconnection of the R/G/B primary color light emitting diode of the single row of LED particles in the LED display panel 10 is connected to the output pin corresponding to the drain of one P-MOS transistor in the switching circuit 31 of the display driving circuit 30, in a single column of LED particles.
  • the cathodes of the same primary color are interconnected to the input terminals of the constant current logic elements of the constant current channel group of the display driving circuit 30, that is, the common cathode interconnection of the R primary color light emitting diodes in the single column of LED particles is connected to the constant current channel group of the display driving circuit 30.
  • a constant current logic element input terminal a common cathode interconnection of a G primary color light emitting diode in a single column of LED particles is connected to a constant current logic element input terminal of a constant current channel group of the display driving circuit 30; a single column of LED particles The common cathode interconnection of the medium blue tube B primary color light emitting diode is connected to the constant current logic element input terminal of the constant current channel group of the display driving circuit 30.
  • the control mode of the display driving circuit 30 is not changed, and only the connection relationship of the anodes of the single-row LED particles in the LED display panel 10 is changed.
  • the R/G/B of the single-row LED particles is changed.
  • the anodes of the primary color light emitting diodes are directly interconnected and connected in parallel to the corresponding output pins of the drain of one P-MOS transistor in the switching circuit.
  • the switching circuit 31, the driving circuit 33 and the control circuit 35 are integrated into the display driver.
  • the circuit 30 in the case where the area of the original LED display panel 10 is constant, more display driving circuits 30 can be placed, so that the ratio of the number of LED particles to the display driving circuit 30 is reduced on a certain area of the LED display. The refresh rate is improved, and the connection relationship between the LED particle array and the display driving circuit 30 in the LED display panel 10 is clearer, and the connection lines are less, which reduces the design difficulty of the PCB.
  • the FET may also be an N-MOS tube
  • the LED display panel 10 may include M rows and N columns of LED particles, each LED.
  • the particles respectively include a red tube, a green tube and a blue tube, wherein the cathode of the red tube in the i-th LED particle in each row, the cathode of the green tube, and the cathode of the blue tube are connected in parallel
  • each node in each row is connected in parallel, and is connected to the drain of a corresponding one of the N-MOS tubes in the switch circuit 31;
  • the anodes of the red tubes of the respective LED particles in each column are respectively connected in parallel, respectively, and are respectively circulated
  • the second end of the corresponding one of the constant current logic elements is connected; the anodes of the green tubes of the respective LED particles in each column are respectively connected in parallel, respectively, and the second one of the constant current logic elements corresponding to the constant current channel group End connection
  • the sub-switch circuit includes N N-MOS transistors, wherein the drain of each N-MOS transistor serves as one of the output pins of the control circuit 35, respectively.
  • the source of the MOS transistor is connected to the ground of the power supply device as the ground terminal (ie, the GND terminal) of the display driving circuit 30, and the gate of the N-MOS transistor is connected to one of the power supply control ports of the control circuit 35;
  • the stream channel group includes N constant current logic elements (also referred to as constant current logic circuits), and the second end (ie, input end) of each constant current logic element serves as one of input pins of the display driving circuit 30, respectively.
  • the LED display panel 10 (which may also be referred to as an LED unit) includes M rows.
  • the input end of the flow logic element that is, the common anode interconnection of the R primary light emitting diodes in the single column of LED particles is connected to the constant current logic element input terminal of the constant current channel group of the display driving circuit 30; the single color LED particles are common to the G primary color light emitting diodes)
  • the anode interconnection is connected to the constant current logic element input terminal of the constant current channel group of the display driving circuit 30; the common anode interconnection of the B primary color light emitting diode in the single column LED particle is connected to the constant current logic element input of the constant current channel group of the display driving circuit 30 end.
  • the power supply control circuit 351 in the display drive circuit 30 controls any one of the N-MOS transistors in the sub-switch circuit 31 to be in an on state through the power supply control port to correspond to the corresponding row on the LED display panel 10.
  • the positive electrode of the LED particles is powered, and the drive control circuit 353 outputs a constant current control signal to each constant current logic element in the constant current channel group through the drive control port to control the working state of each constant current logic element, thereby A current path is provided for the primary color anode of the corresponding column of LED particles, and an ordered display of the LED unit is achieved.
  • the primary color anode of the corresponding column of LED particles includes anodes of three primary colors of R, G, and B, that is, an ordered display of red, green, or blue tubes that respectively control the LED particles in the corresponding column.
  • the technical solution shown in the second modification of the first embodiment may also have the following modified embodiments:
  • the field effect transistor may be an N-MOS tube, and the LED display panel 10 may include M rows and N columns of LEDs.
  • Particles each of which includes a red tube, a green tube, and a blue tube, wherein a cathode of a red tube, a cathode of a green tube, and a cathode of a blue tube in each LED particle in each row Connected in parallel, connected to the drain of a corresponding N-MOS transistor in the switch circuit 31; the anodes of the red tubes of the respective LED particles in each column are respectively connected in parallel, and respectively correspond to a constant current in the constant current channel group The second ends of the logic elements are connected; the anodes of the green tubes of the respective LED particles in each column are respectively connected in parallel, respectively connected to the second end of a corresponding constant current logic element in the constant current channel group; each of each column The anodes of the blue lamps of the LED particles are respectively connected in parallel, and are respectively connected to the second ends of the corresponding one of the constant current logic elements in the constant current channel group.
  • the cathode of the single row of LED particles in the LED display panel 10 in this embodiment may also be interconnected to the output pin corresponding to the drain of one of the N-MOS transistors in the display circuit 31 of the display driving circuit 30, and the single column of LED particles
  • the anodes of the same primary color are interconnected to the input end of the constant current logic element of the constant current channel group of the display driving circuit 30, that is, the common anode interconnection of the red light bulb R primary light emitting diode in the single row of LED particles is connected to the constant of the display driving circuit 30 a constant current logic element input end of the flow channel group; a common anode interconnection of the G primary color light emitting diodes in the single row of LED particles is connected to the constant current logic element input terminal of the constant current channel group of the display driving circuit 30; a B primary color light emitting diode in the single column LED particle
  • the common anode interconnection is connected to the constant current logic element input of the constant current channel group of the display driving circuit 30.
  • the driving circuit 33 may include a first constant current channel group, a second constant current channel group, and a third constant a flow channel group, wherein the first constant current channel group includes one or more constant current logic elements, wherein a first end of each constant current logic component is respectively connected to a power terminal or a ground terminal of the power supply device, and each of the constant The third ends of the flow logic elements are respectively connected to the first R display control subports of the drive control port, and the second ends of each of the constant current logic elements are respectively associated with red lights in respective LED particles in corresponding columns of the LED display panel 10.
  • a second constant current channel group including one or more constant current logic elements, wherein the first end of each constant current logic element Connected to the power terminal or the ground terminal of the power supply device respectively, and the third end of each constant current logic component is respectively connected to the first G display control subport of the drive control port, and each of the constant current logic components The two ends are respectively connected to the anode or the cathode of the green light tube in each LED particle in the corresponding column of the LED display panel 10 for controlling the display of the green light tube of the LED display panel 10;
  • the third constant current channel group includes one Or a plurality of constant current logic components, wherein a first end of each constant current logic component is respectively connected to a power terminal or a ground terminal of the power supply device, and a third end of each constant current logic component and a first drive drive port respectively B shows a control sub-port connection, and the second end of each constant current logic element is respectively connected to an an anode or cathode connection of the tube for controlling display of the red tube of the LED display panel
  • the first constant current channel group may be a R primary color constant current channel group
  • the second constant current channel group may be a G primary color constant current channel group
  • the third constant current channel group may be a B primary color constant current channel group.
  • the R primary color constant current channel group may include one or more constant current logic elements, and the second ends (ie, input ends) of the constant current logic elements are connected to the red tubes of the corresponding columns of LED particles in the LED display panel 10.
  • the cathode (ie, the R primary cathode), the first end (ie, the output) of the constant current logic element is interconnected as an external pin GND of the display driving circuit 30, connected to the ground of the power supply device, and the third of the constant current logic element
  • the terminal ie, the control terminal
  • the G primary color constant current channel group may include one or more constant current logic components.
  • the second end (ie, the input end) of the constant current logic element is connected to the cathode of the green tube of the corresponding column of LED particles in the LED display panel 10 (ie, the G-primary cathode), and the first end of the constant current logic element (ie, the output end)
  • the interconnect is used as the external pin GND of the display driving circuit 30, and is connected to the ground of the power supply device, and the third end (ie, the control end) of the constant current logic element is connected to the first G display control of the driving control port.
  • the sub-port is configured to receive the G display control signal of the drive control circuit 353;
  • the B primary color constant current channel group may include one or more constant current logic elements, and the second end (ie, the input end) of the constant current logic elements is connected to the LED
  • the cathode of the blue tube of the corresponding column of LED particles in the display panel 10 ie, the B-primary cathode
  • the first end (ie, the output end) of the constant current logic element is interconnected as an external pin GND of the display driving circuit 30, connected
  • the third terminal (ie, the control terminal) of the constant current logic component is connected to the first B display control subport of the drive control port to receive the B display control signal of the drive control circuit 353.
  • the power supply control circuit 351 controls each FET to be turned on to supply power to the LED granules in the LED display panel 10 row corresponding to the FET;
  • the drive control circuit 353 is configured to display the control through the first R The port controls the constant current logic elements in the first constant current channel group to be turned on, and the respective constant current logic elements are turned on, respectively providing the red light tubes in the LED particles in the column of the LED display panel 10 corresponding to the constant current logic elements.
  • the drive control circuit 353 is further configured to control the second constant current channel group through the first G display control subport Each of the constant current logic elements is turned on, and each of the constant current logic elements is turned on, respectively providing a current path for the green light tubes in the LED particles in the column of the LED display panel 10 corresponding to the constant current logic elements, to control the field effect transistor Corresponding LED display panel displays the green light tube of the LED particles in the row 10; the drive control circuit 353 is further configured to control each of the third constant current channel groups through the first B display control subport A constant current logic element is turned on, and each constant current logic element is turned on, respectively providing a current path for the blue light tube in the LED particles in the column 10 of the LED display panel corresponding to the constant current logic element, to control the field effect transistor The corresponding LED displays the display of the blue light tubes of the LED particles in row 10 of the panel.
  • the power supply control port of the display driving circuit 30 is not changed, and the driving control port includes three sub-control ports to respectively control the on/off of the first/second/third constant current channel group, so that the switching circuit And the driving circuit respectively control the power supply of the single row of LED particles and the ordered display of the column LED particles in the LED display panel.
  • the switch circuit 31, the driving circuit 33 and the control circuit 35 are integrated into the display driving circuit 30,
  • the driving circuit includes three sets of constant current channel groups, and more display driving circuits 30 can be placed under the condition that the LED display panel 10 has the same area, so that the LED particles and the display driver are on the LED display with a certain area.
  • the FET may be a P-MOS tube
  • the LED display panel 10 includes M rows and N columns of LED particles, and each of the LED particles includes a red tube, a green tube, and a blue tube, wherein The anode of the red lamp tube, the anode of the green lamp tube and the anode of the blue lamp tube in the ith LED particles in each row are connected in parallel to the i-th node, and the respective nodes in each row are connected in parallel, respectively, and the switch circuit 31 a drain connection of a corresponding P-MOS transistor; cathodes of red LEDs of respective LED particles in each column are respectively connected in parallel, and respectively connected to a second end of a corresponding constant current logic element in the first constant current channel group The cathodes of the
  • the LED display panel 10 (which may also be referred to as an LED unit) includes a matrix arrangement of M rows*N columns of LED particles, wherein the anode interconnection of the single row of LED particles is connected to the i-th node, and each node is connected to the display driving circuit.
  • An output pin corresponding to the drain of one P-MOS transistor of the switch circuit 31 in 30, a cathode of the same primary color in the single row of LED particles is interconnected to the input of the constant current logic element of the first constant current channel group of the display drive circuit 30
  • the common cathode connection of the R primary light emitting diodes in the single column of LED particles is connected to the constant current logic element input end of the second constant current channel group of the display driving circuit 30;
  • the common cathode interconnection of the G primary color light emitting diodes in the single column of LED particles is connected to The constant current logic element input terminal of the constant current channel group of the display driving circuit 30;
  • the common cathode interconnection of the B primary color light emitting diodes of the single column LED particles is connected to the constant current logic element input terminal of the third constant current channel group of the display driving circuit 30.
  • the power supply control circuit 351 of the display drive circuit 30 controls any one of the P-MOS transistors in the sub-switch circuit 31 to be in an on state by the power supply control port, which is the positive electrode of the LED particles in the corresponding row on the LED display panel 10.
  • the power supply, drive control circuit 353 outputs the R display control signal /G display control signal / B display control signal to the first through the first R display control sub port / first G display control sub port / first B display control sub port
  • Each of the constant current logic elements in the constant current channel group/second constant current channel group/third constant current channel group controls the respective constant current logic elements in the three constant current channel groups to be in an active state, thereby A current path is provided for the R primary color cathode, the G primary color cathode, and the B primary color cathode of the corresponding column of LED particles, and an ordered display of the LED is achieved.
  • the R primary color cathode, the G primary color cathode and the B primary color cathode of the LED particles of the corresponding column are respectively the red tube, the green tube or the cathode of the blue tube corresponding to the LED particles in the column.
  • the sub-switch circuit can also be called a P-MOS channel.
  • the technical solution shown in the embodiment of the third variant in the first embodiment may also have the following modified embodiments:
  • the field effect transistor may be a P-MOS tube, and the LED display panel 10 may include M rows and N columns.
  • LED particles each of which includes a red tube, a green tube, and a blue tube, wherein the anode of the red tube, the anode of the green tube, and the blue tube of each of the LED particles in each row
  • the anodes are connected in parallel and respectively connected to the drains of a corresponding one of the P-MOS tubes of the switch circuit 31;
  • the cathodes of the red tubes of the respective LED particles in each column are respectively connected in parallel, respectively corresponding to the first constant current channel group a second end of the constant current logic element is connected;
  • the cathodes of the green light tubes of the respective LED particles in each column are respectively connected in parallel, and respectively connected to the second end of the corresponding one of the second constant current channel groups;
  • the cathodes of the blue lamps of the respective LED particles in each column are respectively connected in parallel, and are respectively connected to the second ends of the corresponding one of the constant current logic elements in the third constant current channel group.
  • an anode interconnection of a single row of LED particles in the LED display panel 10 is connected to an output pin corresponding to a drain of one P-MOS transistor in the display circuit 31 of the display driving circuit 30, and a cathode interconnection of the same primary color in a single column of LED particles Input to the constant current logic element of the first constant current channel group of the display driving circuit 30, that is, a single column
  • the common cathode interconnection of the R primary light emitting diodes in the LED particles is connected to the constant current logic element input terminal of the second constant current channel group of the display driving circuit 30; the common cathode interconnection of the G primary color light emitting diodes in the single column LED particles is connected to the display driving circuit 30
  • the constant current logic element input terminal of the constant current channel group; the common cathode interconnection of the B primary color light emitting diode in the single column of LED particles is connected to the constant current logic element input terminal of the third constant current channel group of the display driving circuit 30.
  • the control circuit 30 is controlled in the same manner as the embodiment shown in the third modified embodiment of the first embodiment.
  • the power supply control circuit 351 controls the switch circuit 31 through the power supply control port (ie, One of the P-MOS channel groups is in an on state, and supplies power to the anode of the LED particles in the corresponding row on the LED display panel 10, and the drive control circuit 353 passes the first R display control subport/ a G display control sub port / first B display control sub port outputs an R display control signal /G display control signal / B display control signal to the first constant current channel group / the second constant current channel group / the third constant current channel
  • Each of the constant current logic elements in the group controls the respective constant current logic elements in the three constant current channel groups to be in an active state, thereby being the R primary color cathode, the G primary color cathode, and the B primary color of the corresponding column of LED particles.
  • FIGS. 6a to 6c are schematic diagrams showing the structure of an LED display according to Embodiment 2 of the present invention. As shown in FIG.
  • the FET in the LED display can also be an N-MOS tube
  • the LED display panel 10 can include M rows and N columns of LED particles, each of which includes a red tube, a green tube, and a blue tube, wherein the cathode of the red tube in the i-th LED particle in each row, the cathode of the green tube, and the cathode of the blue tube are connected in parallel to the i-th node, and each node in each row is connected in parallel And respectively connected to the drain of a corresponding one of the N-MOS tubes of the switch circuit 31; the anodes of the red tubes of the respective LED particles in each column are respectively connected in parallel as a terminal of the anode of the LED display panel 10, respectively The second end of the corresponding one of the first constant current channel groups is connected; the anodes of the green tubes of the respective LED particles in each column are respectively connected in parallel as a terminal of the anode of the LED display panel 10, respectively Connected to a second end of a corresponding constant current channel
  • the R primary color constant current channel group may include one or more constant current logic elements, and the first ends (in this embodiment, the input terminals) of the constant current logic elements are interconnected as a display driving circuit.
  • the external pin VCCR of 30 is connected to the power supply end of the power supply device, and the second end (ie, the output end) of the constant current logic element is connected to The anode of the red lamp tube (in this embodiment, the R primary color anode) of the corresponding column of LED particles in the LED display panel 10, and the third end (ie, the control end) of the constant current logic element is connected to the first R display control port;
  • the G primary color constant current channel group may include one or more constant current logic elements, and the first ends (in this embodiment, the input terminals) of the constant current logic elements are interconnected as an external pin VCCG of the display driving circuit 30, and connected.
  • the second end (ie, the output end) of the constant current logic element is connected to the anode (in this embodiment, the G primary color anode) of the green lamp of the corresponding column of LED particles in the LED display panel 10,
  • the third end (ie, the control end) of the constant current logic element is connected to the first G display control port;
  • the B primary color constant current channel group may include one or more constant current logic elements, and the first end of the constant current logic elements
  • the input terminal is interconnected as an external pin VCCB of the display driving circuit 30, and is connected to the power supply end of the power supply device, and the second end (ie, the output end) of the constant current logic element is connected to the LED display panel 10 correspondingly.
  • the anode of the blue lamp of the column of LED particles (in this embodiment, the B primary anode), the third end of the constant current logic element (ie, the control terminal) is coupled to the first B display control port.
  • the LED particles shown in Fig. 6c are partially enlarged views of the portion E1 covered by the broken line in Fig. 6b, wherein the four legs are common cathodes, and the two/3/4 are anodes of the B/G/R trichromatic light emitting diodes, respectively.
  • the power supply voltage of the external pin VCCR of the display driving circuit 30 can be lower than the power supply voltage of the external pin VCCG/VCCB.
  • the power supply voltage of the VCCR can be 1.6V, and the voltage value is By subtracting the operating voltage of the red tube (1.8 to 2V) from the operating voltage of the green and blue tubes (3.4 to 3.6V), the voltage of the R/G/B primary color LED is differentially controlled to reduce the voltage.
  • the power consumption of LED displays can be 1.6V, and the voltage value is By subtracting the operating voltage of the red tube (1.8 to 2V) from the operating voltage of the green and blue tubes (3.4 to 3.6V), the voltage of the R/G/B primary color LED is differentially controlled to reduce the voltage.
  • the LED display panel 10 (also referred to as an LED unit) includes M rows * N columns: a matrix arrangement of LED particles, wherein the cathode interconnection of the single row of LED particles is connected to the i-th node, and the respective nodes are connected to An output pin corresponding to the drain of one of the N-MOS transistors in the switch circuit 31 of the drive circuit 30 is displayed, and the anode of the same primary color in the single column of LED particles is interconnected to the constant current logic of the first constant current channel group of the display drive circuit 30.
  • the input end of the component that is, the common anode interconnection of the R primary light emitting diode in the single column of LED particles is connected to the input terminal of the constant current logic component of the second constant current channel group of the display driving circuit 30; the common anode of the G primary color LED in the single column of LED particles Connected to the constant current logic element input terminal of the constant current channel group of the display driving circuit 30; the common anode interconnection of the B primary color light emitting diode in the single column of LED particles is connected to the constant current logic element of the third constant current channel group of the display driving circuit 30 Input.
  • the power supply control circuit 351 controls the sub-switch circuit 31 (the sub-switch circuit 31 can be an N-MOS channel group) through the power supply control port to be in an ON state, which is an LED.
  • the anode of the LED particles in the corresponding row on the display panel 10 is powered, and the drive control circuit 353 displays the R control signal via the first R display control subport/first G display control subport/first B display control subport/ G display control signal / B display control signal output to each constant current logic element in the first constant current channel group / second constant current channel group / third constant current channel group to control three constant currents respectively
  • Each of the constant current logic elements in the channel group is in an active state to provide a current path for the R primary color anode, the G primary color anode, and the B primary color anode of the corresponding column of LED particles, and to achieve an orderly display of the LEDs.
  • FIG. 7a to FIG. 7e are schematic diagrams showing the structure of an LED display according to Embodiment 3 of the present invention
  • FIGS. 8a to 8C are schematic diagrams showing the structure of an LED display according to Embodiment 4 of the present invention.
  • FIG. 7b and FIG. 8b are respectively partial enlarged views of the F covered by the broken line in FIG. 7a and the H covered by the broken line in FIG.
  • the circuit connection relationship of the two embodiments may be the same.
  • the FET may also be an N-MOS tube, and the LED display panel 10 includes M rows and N columns of LED particles, and each LED particle includes a red tube and a green tube, respectively.
  • a blue light tube wherein a cathode of a red light tube, a cathode of a green light tube, and a cathode of a blue light tube in each LED particle in each row are connected in parallel, respectively, and a corresponding N-MOS tube in the switch circuit 31 Drain connection; the anodes of the red lamps of the respective LED particles in each column are respectively connected in parallel, respectively connected to the second end of a corresponding constant current logic element in the first constant current channel group; each LED in each column The anodes of the green light tubes of the particles are respectively connected in parallel, respectively connected to the second end of a corresponding constant current logic element in the second constant current channel group; the anodes of the blue light tubes of the respective LED particles in each column are respectively connected in parallel And respectively connected to a second end of a corresponding constant current logic element in the third constant current channel group.
  • the anode interconnection of the single row of LED particles in the LED display panel 10 is connected to the output pin corresponding to the drain of one of the N-MOS transistors in the switching circuit 31 of the display driving circuit 30, and the cathode of the single row of LED particles.
  • each node is connected to an output pin corresponding to the drain of one of the N-MOS transistors in the switch circuit 31 of the display driving circuit 30, and the anodes of the same primary color in the single row of LED particles are interconnected to the display driving circuit
  • the input terminal of the constant current logic element of the first constant current channel group of 30, that is, the common anode interconnection of the R primary color light emitting diode in the single column of LED particles is connected to the constant current logic element input terminal of the second constant current channel group of the display driving circuit 30
  • the common anode interconnection of the G-primary LEDs in the single-column LED particles is connected to the display driving power
  • the constant current logic element input terminal of the constant current channel group of the path 30; the common anode interconnection of the B primary color light emitting diode in the single column of LED particles is connected to the constant current logic element input terminal of the third constant current channel group of the display driving circuit 30.
  • the switch circuit 31 includes a first sub-switch circuit and a second sub-switch circuit, and the first sub-switch The circuit and the second sub-switch circuit each include one or more FETs, and the sources of each of the first sub-switch circuit and the second sub-switch circuit are respectively connected to a power supply terminal or a ground terminal of the power supply device Connecting, wherein a drain of each FET in the first sub-switch circuit is respectively connected to an anode or a cathode of a red lamp tube in each LED particle in a corresponding row in the LED display panel, a gate of each FET Connected to corresponding terminal blocks in the power supply control port, respectively, for controlling the power supply of the red light tube of the LED display panel; the drain of each FET in the second sub-switch circuit and the corresponding row in the LED display panel The green tube in the LED particle is connected to
  • the driving circuit 33 may include a constant current channel group, and the constant current channel group may include: one or more constant current logic elements, wherein the first end of each constant current logic element is respectively connected to the power supply device The power terminal or the ground terminal is connected; the second end of each constant current logic component is respectively connected to the anode or the cathode of the LED column of the corresponding column in the LED display panel 10; the third end of each constant current logic component and the drive control port respectively Connect the corresponding terminal block.
  • the power supply control circuit 351 is configured to control one of the FETs in the first sub-switch circuit to be turned on in the row of the LED display panel 10 corresponding to the FET in the first sub-switch circuit.
  • the red light tube in the LED particles is powered;
  • the power supply control circuit 351 is further configured to control the FET corresponding to one of the first sub-switch circuits in the second sub-switch circuit to open with the first sub-switch
  • the green field tube and the blue tube in the LED particles in the row 10 of the LED display panel corresponding to the field effect tube in the circuit are powered;
  • the driving control circuit 353 is used to control the conduction of each constant current logic element in the constant current channel group.
  • each constant current logic element After each constant current logic element is turned on, a current path is provided for the LED particles in the column of the LED display panel 10 corresponding to the constant current logic element, respectively, to control the LED particles in the row of the LED display panel 10 corresponding to the field effect transistor.
  • Orderly display By integrating the switch circuit 31, the drive circuit 33, and the control circuit 35 into the display drive circuit 30, more display drive circuits 30 can be placed with the original LED display panel 10 unchanged, thereby providing a certain area of LEDs. On the display, the ratio of the number of LED particles to the display driving circuit 30 is reduced and the refresh rate is increased.
  • the field effect transistor of the display driving circuit 30 may be a P-MOS tube
  • the LED display panel 10 may include M rows and N columns of LED particles, each of which includes a red tube, a green tube, and a blue color.
  • a lamp tube wherein an anode of a red lamp tube of each of the i-th LED particles in each row is connected in parallel to an i-th node, and each node in each row is connected in parallel, and respectively corresponds to a corresponding one of the first sub-switch circuits 31.
  • the drain connection of the MOS tube; the anode of the green tube and the anode of the blue tube in the jth LED particle in each row are connected in parallel to the jth node, and each node in each row is connected in parallel, and the second sub-switch circuit a drain of a corresponding one of the P-MOS tubes of 31;
  • the cathodes of the red tubes of the respective LED particles in each column are respectively connected in parallel, and respectively connected to the second end of a corresponding constant current logic element in the constant current channel group
  • the cathodes of the green tubes of the respective LED particles in each column are respectively connected in parallel, respectively connected to the second end of a corresponding constant current logic element in the constant current channel group;
  • the blue tubes of the respective LED particles in each column The cathodes are respectively connected in parallel and respectively connected to the second end of a corresponding constant current logic element in the constant current channel group.
  • the display driving circuit 30 integrates the first sub-switching circuit and the second sub-switching circuit, the two sub-switching circuits respectively comprise one or more P-MOS tubes, and the P-MOS tubes of the first sub-switching circuit
  • the source interconnection can be used as an external pin VCCB of the display driving circuit 30, connected to a terminal of the power supply terminal of the power supply device, the gate is connected to the red power supply control signal of the power supply control port, and the drain is connected to the corresponding LED display panel 10
  • the anode of the red tube of the LED particles of the row ie, the R primary anode of the corresponding row of LED particles
  • the source interconnection of the P-MOS tube of the second sub-switching circuit can be used as the external pin VCCA of the display driving circuit 30,
  • the driving circuit 33 may be the same as the driving circuit shown in the first embodiment, and the driving circuit 33 may include a set of constant current channel groups including a plurality of constant current logic elements (also referred to as constant current logic) Circuit), the second end (ie, the input end) of each constant current logic element is respectively used as one of the input pins of the display driving circuit 30, and the first ends (ie, the output ends) of all the constant current logic elements are internally interconnected and connected To the ground terminal (ie, the GND terminal) of the display driving circuit 30, the third terminal (ie, the control terminal) of the constant current logic element is connected to the driving control port of the control circuit 35 for receiving the constant current control signal of the driving circuit 33.
  • constant current logic elements also referred to as constant current logic) Circuit
  • the anodes of the red lamps in the ith LED particles in each row of the LED display panel 10 are connected in parallel to the i-th node, and the respective nodes in each row are connected in parallel with the first sub-switch circuit 31, respectively.
  • the drain connection of a corresponding P-MOS tube; the anode of the green lamp and the anode of the blue tube in the jth LED particle in each row are connected in parallel to the jth node, and the nodes in each row are connected in parallel, Connected to the drains of the corresponding one of the P-MOS transistors of the second sub-switch circuit 31; the cathodes of the same primary color in the single row of LED particles are interconnected to the input terminals of the constant current logic elements of the constant current channel group of the display driving circuit 30, That is, the common cathode interconnection of the red tube (ie, the R primary color display unit) of the single column of LED particles is connected to the constant current channel group of the display driving circuit 30.
  • the common cathode interconnection of the color tubes i.e., the B primary color display unit
  • the power supply voltages of the first sub-switch circuit and the second sub-switch circuit may be different.
  • the VCCB supply voltage is preferably 1.6V.
  • the supply voltage can be lower than the supply voltage of the pin VCCA. This 1.6V voltage is subtracted from the typical operating voltage of the green and blue LEDs (3.4-3.6V) minus the red LED.
  • the operating voltage (1.8-2V) is obtained, which can differentially control the supply voltage of the R/G/B primary color LED, thereby reducing the power consumption of the LED display.
  • the power supply control circuit 351 of the display driving circuit 30 controls the corresponding P-MOS tubes of the first sub-switch circuit and the second sub-switch circuit corresponding to the same row to be turned on by the power supply control port, respectively, which are LEDs.
  • the R primary color light emitting diode and the G/B primary color light emitting diode positive electrode of the LED particles in the corresponding row on the display panel 10 are powered by the first R display control sub port / the first G display control sub port / first B shows that the control sub-port outputs the R display control signal /G display control signal / B display control signal to each of the constant current logic elements in the first constant current channel group / the second constant current channel group / the third constant current channel group, To respectively control the respective constant current logic elements in the three constant current channel groups to be in an active state, thereby providing a current path for the R primary color cathode, the G primary color cathode, and the B primary color cathode of the corresponding column of LED particles, and implementing the LED Orderly display.
  • the technical solution shown by the embodiment of the first variant of the third and fourth embodiments may also have the following modifications:
  • the LED display panel 10 can also be implemented by the following embodiments: the FET can be a P-MOS tube, and the LED display panel 10 can include M rows and N columns of LED particles, each of which includes a red tube, a green tube, and a blue tube, wherein the cathodes of the red tubes in each of the LED particles in each row are connected in parallel, respectively connected to the drain of a corresponding P-MOS tube in the first sub-switch circuit; each LED in each row The anode of the green tube in the particle is connected in parallel with the anode of the blue tube, and is respectively connected to the drain of a corresponding P-MOS tube in the second sub-switch circuit; the red tube of each LED particle in each column The cathodes are respectively connected in parallel and respectively connected to the second end of a corresponding constant current logic element in the constant current channel group; the cathodes of the green light tubes of the respective LED particles in each column are respectively connected in parallel, respectively corresponding to the constant current channel group a second end of
  • the anode of the red tube in the LED particles in each row in the LED display panel 10 is connected in parallel to the drain of a corresponding one of the first sub-switch circuits; the green tube in the LED particles in each row The anode of the anode and the blue tube are connected in parallel to the drain connection of a corresponding one of the P-MOS tubes in the second sub-switch circuit; the cathodes of the same primary color in the single column of LED particles are interconnected to the constant current logic element of the constant current channel group
  • the input end, that is, the common cathode of the R primary light emitting diode in the single column of LED particles is connected to the input end of the constant current logic element of the constant current channel group of the display driving circuit 30; the common cathode interconnection of the G primary color LED in the single column of LED particles a constant current logic element input terminal to the constant current channel group of the display driving circuit 30; a common cathode interconnection of the B primary color light emitting diodes in the single column
  • the field effect transistor can be an N-MOS tube
  • the LED display panel 10 includes M rows. N columns of LED particles, each of which includes a red tube, a green tube, and a blue tube, wherein the cathodes of the red tubes in each of the LED particles in each row are connected in parallel, respectively, with the first sub-switch a drain connection of a corresponding one of the N-MOS transistors in the circuit; a cathode of the green lamp in each of the LED particles in each row is connected in parallel with a cathode of the blue lamp, and a corresponding one of the second sub-switch circuits - the drain connection of the MOS tube; the anodes of the red tubes of the respective LED particles in each column are respectively connected in parallel, respectively connected to the second end of a corresponding constant current logic element in the constant current channel group; each in each column The anodes of the green
  • the second type: the FET is an N-MOS tube
  • the LED display panel 10 includes M rows and N columns of LED particles, and each of the LED particles includes a red tube, a green tube, and a blue tube, wherein each row
  • the cathode of the red tube in the i-th LED particle is connected in parallel to the i-th node, and each node in each row is connected in parallel, and is respectively connected to the drain of a corresponding one of the first sub-switch circuits 31;
  • the cathode of the green lamp and the cathode of the blue lamp in the jth LED particle in the row are connected in parallel to the jth node, and each node in each row is connected in parallel, and a corresponding N-MOS in the second sub-switch circuit 31.
  • the drain connection of the tube; the anodes of the red tubes of the respective LED particles in each column are respectively connected in parallel, respectively connected to the second end of a corresponding constant current logic element in the constant current channel group; each LED particle in each column
  • the anodes of the green lamps are respectively connected in parallel, and are respectively connected to the second ends of the corresponding constant current logic elements in the constant current channel group; the anodes of the blue lamps of the respective LED particles in each column are respectively connected in parallel, respectively Corresponding in the constant current channel group
  • the second end of a constant current logic element is connected.
  • the display driving circuit 30 integrates the first sub-switching circuit and the second sub-switching circuit, and the two sub-switching circuits 31 respectively include one or more N-MOS transistors, and the N-MOS transistors of the first sub-switching circuit Source mutual
  • the connection can be used as an external pin GND of the display driving circuit 30, connected to a terminal of the power supply terminal of the power supply device, the gate is connected to the red power supply control signal of the power supply control port, and the drain is connected to the corresponding row of the LED display panel 10.
  • the anode of the red tube of the LED particles ie, the R primary anode of the corresponding row of LED particles
  • the source interconnection of the N-MOS tube of the second sub-switch circuit can be used as the external pin GND of the display driving circuit 30, connected to a terminal of the power supply end of the power supply device, the gate is connected to the green and blue power supply control signals of the power supply control port, and the drain is connected to the green light tube of the LED particles of the corresponding row of the LED display panel 10 and the anode of the blue light tube (ie, the G-primary anode and the B-primary anode of the corresponding row of LED particles).
  • the driving circuit 33 may be the same as the driving circuit 33 shown in the first embodiment, and the driving circuit 33 may include a set of constant current channel groups including a plurality of constant current logic elements (also referred to as constant current) a logic circuit), the second end (ie, the input end) of each constant current logic element is respectively used as one of the input pins of the display driving circuit 30, and the first ends (ie, the output ends) of all the constant current logic elements are internally interconnected, As the VCC terminal of the display driving circuit 30, connected to the power supply end of the power supply device, the third end (ie, the control terminal) of the constant current logic element is connected to the driving control port of the control circuit 35 for receiving the constant current control of the driving circuit 33. signal.
  • the cathodes of the red lamps in the ith LED particles in each row are connected in parallel to the i-th node, and the nodes in each row are connected in parallel, respectively a drain connection of a corresponding one of the N-MOS transistors in the sub-switch circuit; the cathode of the green lamp in the j-th LED particle in each row and the cathode of the blue lamp are connected in parallel to the j-th node, each in each row
  • the nodes are connected in parallel and connected to the drain of a corresponding one of the second sub-switch circuits;
  • the common anode interconnection of the R primary light emitting diodes in the single column of LED particles is connected to the input terminal of the constant current logic element of the constant current channel group;
  • the common anode interconnection of the G primary color LEDs in the LED particles is connected to the constant current logic element input end of the constant current channel group; the common anode interconnection of the B primary color LEDs in the single column of
  • the cathode internal interconnections of the red lamps in the respective LED particles in each row are respectively connected to the drains of the corresponding one of the N-MOS transistors in the first sub-switch circuit, and the LED particles in each row are respectively
  • the cathode interconnections of the green and blue lamps are respectively connected to the drains of the corresponding one of the N-MOS transistors in the second sub-switch circuit;
  • the common anode interconnection of the R-primary LEDs in the single column of LED particles is connected to the display driving circuit 30
  • Constant current logic component input terminal of constant current channel group common anode interconnection of G primary color light emitting diode in single column LED particle is connected to constant current logic component input end of constant current channel group; common anode interconnection of B primary color light emitting diode in single column LED particle Connect to the constant current logic component input of the constant current channel group.
  • the switching circuit 31 of the display driving circuit 30 includes a first sub-switching circuit and a second sub-switching circuit
  • the driving circuit 33 includes a first constant current channel group, a second constant current channel group, and a third Constant current channel group
  • first The structure of the sub-switch circuit and the second sub-switch circuit may be the same as in the first embodiment in the first embodiment
  • the first constant current channel group may include one or more constant current logic elements, wherein each The first end of the constant current logic component is respectively connected to the power terminal or the ground terminal of the power supply device, and the third end of each constant current logic component is respectively connected to the first R display control subport of the drive control port, and each constant current logic
  • the second ends of the components are respectively connected to the anodes or cathodes of the red tubes in the respective LED particles in the corresponding columns of the LED display panel 10 for controlling the display of the red tubes of the LED display panel 10; the second constant current channel group And including one or more constant current
  • the first constant current channel group may be a R primary color constant current channel group
  • the second constant current channel group may be a G primary color constant current channel group
  • the third constant current channel group may be a B primary color constant current channel group.
  • the power supply control circuit 351 in the control circuit 35 is configured to control one of the first sub-switch circuits to be turned on in the row of the LED display panel 10 corresponding to the field effect transistor in the first sub-switch circuit.
  • the red light tube in the LED particles is powered; the power supply control circuit 351 is further configured to control the FET corresponding to each of the FETs in the second sub-switch circuit to open and The FET in the sub-switch circuit corresponds to the green lamp and the blue lamp in the LED particles in the row of the LED display panel 10; the drive control circuit 353 is used to control the first constant through the first R display control sub-port Each of the constant current logic elements in the flow channel group is turned on, and after each constant current logic element is turned on, respectively providing a current path for the red light tubes in the LED particles in the column of the LED display panel 10 corresponding to the constant current logic element, Controlling the display of the red light tube of the LED particles in the LED display panel 10 row corresponding to the FET; the drive control circuit 353 is further configured to control the second constant current channel group through the first G display control sub-port A constant current logic element is turned on, and after each constant current logic element is turned on, a current path is provided for the green light tube in the LED particles in the
  • the display of the blue light tube in the LED particles The three sets of constant current channel groups in the above embodiment respectively control the constant current display of the red light tube, the green light tube and the blue light tube (which may be R/G/B three primary color light emitting diodes) on the LED display panel 10,
  • the first sub-switch circuit 31 and the second sub-switch circuit 31 in the switch circuit 31 (the two sub-switch circuits 31 can be respectively a channel composed of a group of P-MOS tubes, referred to as P-MOS channels for short), respectively for controlling the LED display
  • the power supply of the R/G/B trichromatic diodes on the panel 10 and the power supply control circuit 351 and the drive control circuit 353 in the display drive circuit 30 control the operating states of the switch circuit 31 and the drive circuit 33, respectively.
  • the power supply control port includes a first power supply control port and a second power supply control port, wherein the first power supply control port is used for the first sub-switch circuit (ie, the P-MOS channel group that supplies the VCCB as shown in FIG. Transmitting a first power supply control signal, the second power supply control port is configured to send a second power supply control signal to the second sub-switch circuit (ie, a VC-powered P-MOS channel group); the drive control port includes a second R/G/B The display control subport sends a second R/G/B display control signal to the R/G/B primary color constant current channel group.
  • the first power supply control port is used for the first sub-switch circuit (ie, the P-MOS channel group that supplies the VCCB as shown in FIG. Transmitting a first power supply control signal
  • the second power supply control port is configured to send a second power supply control signal to the second sub-switch circuit (ie, a VC-powered P-MO
  • FIGS. 9a to 9c are schematic diagrams showing the structure of an LED display according to Embodiment 7 of the present invention
  • Figs. 10a to 10e are schematic structural views of an LED display according to Embodiment 7 of the present invention.
  • Figures 9b and 10b respectively, a partial enlarged view of the portion covered by the dotted line in Fig. 9a and the portion covered by the broken line in Fig. 10a in the two embodiments, and the three primary color light emitting diodes in the LED particles in Fig. 9c.
  • the circuit connection relationship of the two embodiments may be the same.
  • the anode of each LED particle in Figures 9c and 9b has three pins, respectively 1, 2, 3, corresponding to the anode of the internal R/G/B primary color LED, and the cathode has 3 pins. 4, 5, 6, respectively correspond to the cathode of the internal B/G/R primary color LED; as shown in Figure 10c, the anode of the R/G/B primary LED is pin 1, and the cathode is pin 2.
  • R / G / B primary color diodes are soldered in parallel, as an LED particle (ie full color pixel point).
  • the display driver 30 integrates three sets of constant current channel groups to respectively control the constant current display of the R/G/B trichromatic diodes on the LED display panel 10; and integrates two sets of P-MOS channels for controlling the LED units respectively.
  • the field effect transistor at the K covered by the broken line in FIG. 10a may be a P-MOS tube, and FIG. 10e is at the K1 where the dotted line in FIG. 10d is covered.
  • the structure of the P-MOS tube, the LED display panel 10 includes M rows and N columns of LED particles, and each of the LED particles includes a red tube, a green tube and a blue tube, wherein each of the LED particles in each row
  • the anodes of the red tubes are connected in parallel, respectively connected to the drains of a corresponding P-MOS tube in the first sub-switch circuit; the anodes of the green tubes and the anodes of the blue tubes in each LED particle in each row are connected in parallel Connected as a terminal of the anode of the LED display panel 10, connected to the drain of a corresponding P-MOS tube in the second sub-switch circuit; each LED in each column
  • the cathodes of the red tubes of the particles are respectively connected in parallel, respectively connected to the second end of a corresponding constant current logic element in the first constant current channel group; the cathodes of the green tubes of the respective LED particles in each column are respectively connected in parallel, Connected to a second end of a corresponding constant current
  • the first sub-switch circuit includes one or more P-MOS transistors, the sources of the P-MOS transistors are interconnected to the external pin VCCB of the display driving circuit 30 (3024), and the gate is connected to the first power supply control port, and the drain
  • the R primary color anode of the LED particles (the single row of LED particles in FIG. 9a may not be a single row of LED particles) connected to the corresponding row of the LED display panel 10;
  • the second sub-switch circuit includes one or more P-MOS
  • the source of these P-MOS transistors is interconnected to the external pin VCCA of the display driver circuit 30 (3024), the gate is connected to the second power supply control port, and the drain is connected to the corresponding row of LED particles of the LED display panel 10.
  • the G and B primary color anodes may not be a single row of LED particles.
  • the R primary color constant current channel group may include one or more constant current logic elements, and the input ends of the constant current logic elements are connected to the R primary color cathode of the LED particles in the corresponding column of the LED display panel 10, and the output end of the constant current logic element Connected to the external pin GND of the display driving circuit 30, the control terminal of the constant current logic circuit is connected to the first R display control sub-port; the G primary color constant current channel group may include one or more constant current logic elements, these constant currents The input end of the logic element is connected to the G primary color cathode of the LED particle in the corresponding column of the LED display panel 10.
  • the output end of the constant current logic element is interconnected to the external pin GND of the display driving circuit 30, and the control end of the constant current logic circuit is connected to The first G display control sub-port;
  • the B primary color constant current channel group may include one or more constant current logic elements, and the input ends of the constant current logic elements are connected to the B primary color cathode of the LED particles in the corresponding column of the LED display panel 10,
  • the output of the stream logic element is interconnected to an external pin GND of the display driver circuit 30, and the control terminal of the constant current logic circuit is coupled to the first B display control subport.
  • the power supply control circuit 351 controls the corresponding two P-MOS tubes of the first sub-switch circuit 31 and the second sub-switch circuit 31 corresponding to the same row to be turned on by the power supply control port, respectively
  • the R primary color light emitting diode and the G/B primary color light emitting diode positive electrode of the LED particles in the corresponding row on the LED display panel 10 are powered by the second R display control sub port / the second G display control sub port /
  • the second B display control sub port outputs the R display control signal /G display control signal / B display control signal to each of the constant current logic elements in the first constant current channel group / the second constant current channel group / the third constant current channel group , respectively, to control the respective constant current logic elements in the three constant current channel groups to be in an active state, thereby providing a current path for the R primary color cathode, the G primary color cathode, and the B primary color cathode of the corresponding column of LED particles, and implementing
  • the supply voltages of the first sub-switch circuit and the second sub-switch circuit may be different, and the VCCB supply voltage is preferably 1.6V, and the supply voltage may be lower than the supply voltage of the pin VCCA, and the voltage value of the 1.6V is The typical operating voltage (3.4-3.6V) of the green and blue LEDs is subtracted from the typical operating voltage (1.8-2V) of the red LED. This allows differential control of the supply voltage of the R/G/B primary LED. , thereby reducing the power consumption of the LED display.
  • the following modifications are possible:
  • the FET in the LED display may be a P-MOS tube
  • the LED display panel 10 may include M rows and N columns of LED particles, each of which includes a red tube, a green tube, and a blue tube, wherein each The anode of the red lamp tube in the ith LED particle in the row is connected in parallel to the i-th node, and each node in each row is connected in parallel, and is connected to the drain of a corresponding P-MOS transistor in the first sub-switch circuit 31;
  • the anode of the green lamp and the anode of the blue lamp in the jth LED particle in each row are connected in parallel to the jth node, and each node in each row is connected in parallel, and respectively corresponds to a corresponding P in the second sub-switch circuit 31.
  • the cathodes of the red tubes of the respective LED particles in each column are respectively connected in parallel, respectively connected to the second end of a corresponding constant current logic element in the first constant current channel group; in each column The cathodes of the green tubes of the respective LED particles are respectively connected in parallel, respectively connected to the second end of a corresponding constant current logic element in the second constant current channel group; the cathode of the blue tube of each LED particle in each column Connected in parallel A second end connected to a logic element of the constant current to the constant current corresponding to the third channel group.
  • the supply voltage of the external pin VCCB of the display driving circuit 30 is lower than the external pin VCCA supply voltage, and the supply voltage of the external pin VCCB is preferably 1.6V, and the voltage value is operated by the green and blue light emitting diodes.
  • the voltage (3.4-3.6V) is subtracted from the typical operating voltage of the red LED (1.8-2V).
  • the FET can be an N-MOS tube, and the LED display panel 10 includes M rows and N columns of LED particles, each of which includes red.
  • the first sub-switch circuit includes one or more N-MOS transistors, the sources of the N-MOS transistors are interconnected to the external pin GND of the display driving circuit 30, and the gate is connected to the a power supply control port, the drain is connected to the R primary color anode of the LED particles of the corresponding row of the LED display panel 10 (a single row of LED particles in FIG.
  • the second sub-switch circuit includes a Or a plurality of N-MOS transistors, the sources of the N-MOS transistors are interconnected to the external pin GND of the display driving circuit 30, the gate is connected to the second power supply control port, and the drain is connected to the corresponding row of the LED display panel 10.
  • the G and B primary color anodes of the LED particles may not be a single row of LED particles).
  • the R primary color constant current channel group may include one or more constant current logic elements, and the input ends of the constant current logic elements are connected to the R primary color cathode of the LED particles in the corresponding column of the LED display panel 10, and the output end of the constant current logic element Connected to the external pin VCCR of the display driving circuit 30, the control terminal of the constant current logic circuit is connected to the first R display control sub-port;
  • the G primary color constant current channel group may include one or more constant current logic elements, these constant currents The input end of the logic element is connected to the G primary color cathode of the LED particle in the corresponding column of the LED display panel 10.
  • the output end of the constant current logic element is interconnected to the external pin VCCG of the display driving circuit 30, and the control end of the constant current logic circuit is connected to The first G display control sub-port;
  • the B primary color constant current channel group may include one or more constant current logic elements, and the input ends of the constant current logic elements are connected to the B primary color cathode of the LED particles in the corresponding column of the LED display panel 10,
  • the output of the stream logic element is interconnected to an external pin VCCB of the display driver circuit 30, and the control terminal of the constant current logic circuit is coupled to the first B display control subport.
  • the supply voltage of the external pin VCCR is lower than the external pin VCCG/VCCB supply voltage, and the voltage value is preferably 1.6V, which is subtracted from the typical operating voltage (3.4-3.6V) of the green and blue LEDs.
  • the typical operating voltage of the red LED (1.8-2V) is obtained by differentially controlling the supply voltage of the R/G/B primary LED, thereby reducing the power consumption of the LED display.
  • the cathode of the red tube in the ith LED particle in each row is connected in parallel to the i-th node, and each node in each row is connected in parallel, and respectively corresponding to one N-MOS tube in the first sub-switch circuit 31.
  • the drain connection; the cathode of the green lamp in the jth LED particle in each row and the cathode of the blue lamp are connected in parallel to the jth node, and each node in each row is connected in parallel, and the second sub-switch circuit 31 a drain connection of a corresponding one of the N-MOS transistors; a common anode interconnection of the R primary light emitting diodes in the single column of LED particles is connected to a constant current logic element input of the first constant current channel group of the display driving circuit 30; The common anode interconnection of the primary color light emitting diodes is connected to the constant current logic element input terminal of the second constant current channel group of the display driving circuit 30; the common anode interconnection of the B primary color light emitting diodes in the single column of LED particles is connected to the third constant of the display driving circuit 30 The constant current logic element input of the stream channel group.
  • the eighth embodiment can also be implemented by the following method: the FET can be an N-MOS tube, and the LED display panel 10 includes M rows and N columns of LED particles, each of which includes a red tube, a green tube, and a blue a color tube, wherein the cathodes of the red tubes in each of the LED particles in each row are connected in parallel, and are respectively connected to the drains of a corresponding one of the first sub-switch circuits 31; the LEDs in each row The cathode of the green tube in the particle and the cathode of the blue tube are connected in parallel, respectively connected to the drain of a corresponding one of the second sub-switch circuits 31; the red tube of each LED particle in each column The anodes are respectively connected in parallel and respectively connected to the second end of a corresponding constant current logic element in the first constant current channel group; the anodes of the green lamps of the respective LED particles in each column are respectively connected in parallel, respectively and the second constant The second end of the corresponding one of the constant current
  • the cathode internal interconnections of the red lamps in the respective LED particles in each row are respectively connected to the drains of the corresponding one of the N-MOS transistors in the first sub-switch circuit 31, and the green in each of the LED particles in each row
  • the cathode interconnections with the blue lamps are respectively connected to the drains of the corresponding one of the N-MOS transistors of the second sub-switch circuit 31;
  • the common anode interconnection of the R-primary LEDs of the single-column LED particles is connected to the first of the display driving circuit 30 a constant current logic element input end of the constant current channel group;
  • a common anode interconnection of the G primary color light emitting diodes in the single row of LED particles is connected to the constant current logic element input end of the second constant current channel group of the display driving circuit 30;
  • the common anode interconnection of the primary color light emitting diodes is coupled to the constant current logic element input of the third constant current channel group of display drive circuit 30.
  • the LED particles in the LED display in the above embodiment of the present invention include a red light tube, a green light tube, and a blue light tube, wherein the red light tube, the green light tube, and the blue light tube may be integrated in the LED particles; It is also possible to separately package the red, green and blue tubes in the LED particles.
  • the field effect transistors in FIGS. 6a, 7a, and 8a may be the N-MOS tubes shown in FIG. 7c, respectively, and the field effect tubes in FIGS. 5a, 9a, and 10a may be respectively in FIG. 10c.
  • the P-MOS tube shown. 11 is a schematic structural view of an LED control system according to an embodiment of the present invention. As shown in FIG.
  • the LED control system includes: a display driving circuit 30.
  • the display driving circuit 30 includes: a switching circuit 31, a driving circuit 33, and a control circuit 35, wherein the first one of the switching circuit 31 and the driving circuit 33 The end is connected to the power end of the power supply device, and the other end is connected to the ground end of the power supply device; the second end of one of the switch circuit 31 and the drive circuit 33 is connected to the anode of the LED display panel 10, and the other end The two ends are connected to the cathode of the LED display panel 10, wherein the switch circuit 31 is used to control the power supply to the LED display panel 10, the drive circuit 33 is used to control the orderly display of the LED display panel 10, and the control circuit includes: a power supply control circuit 351 and a drive control circuit 353, wherein the power supply control circuit 351 passes through the power supply control port and the third end of the switch circuit 31 The connection is used to control the opening or closing of the switch circuit 31.
  • the drive control circuit 353 is connected to the third end of the drive circuit 33 through the drive control port for controlling the on or off of the drive circuit 33.
  • the display drive circuit 30 in the system includes a switch circuit 31, a drive circuit 33, and a control circuit 35.
  • the control circuit 35 includes a power supply control circuit 351 and a drive control circuit 353.
  • the power supply control circuit 351 is used to control The opening or closing of the switch circuit 31 for controlling the conduction or the turn-off of the drive circuit 33, and then controlling the power supply of the LED display panel 10 by the opening or closing of the switch circuit 31, and the conduction through the drive circuit 33 or
  • the display of the LED display panel 10 is controlled to be turned off, thereby achieving an orderly display of the LED display panel 10.
  • the switch circuit 31, the drive circuit 33, and the control circuit 35 are integrated into the display drive circuit 30 by the LED control system of the present invention, so that more display drive circuits 30 can be placed without the original LED display panel 10 having the same area. Therefore, on the LED display with a certain area, the number ratio of the LED particles to the display driving circuit 30 is reduced, and the refresh rate is improved, and the LED row array of the M rows*N columns and the display driving circuit 30 in the LED display panel 10
  • the connection relationship is clearer and the connection lines are less, which reduces the design difficulty of the PCB.
  • the control circuit 35 of the LED display in the prior art occupies a large PCB area, a low refresh rate, and a large power consumption is solved, and the control circuit 35 of the LED display occupies a small area of the panel, has a simple design, and has a high refresh rate. . From the above description, it can be seen that the present invention achieves the following technical effects:
  • the drive circuit 33 and the control circuit 35 are integrated into the display drive circuit 30 so that the area of the original LED display panel 10 remains unchanged.
  • the driving circuit 33 includes the first The constant current channel group 331, the second constant current channel group 333, and the third constant current channel group 335, the three constant current channel groups respectively control the R/G/B in the M row*N column LED particle array in the LED display panel 10.
  • the ordered display of the primary colors, and providing different operating voltages for the red and blue/green tubes of the LED particles in the LED display panel 10, respectively, can reduce the power consumption of the LED display.
  • control circuit 35 of the LED display occupied by the prior art has a large PCB area and a low refresh rate
  • the control circuit 35 of the LED display occupies a small area of the panel, has a simple design, and has a high refresh rate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)
  • Led Devices (AREA)

Abstract

一种LED显示器，包括：LED显示面板（10）；显示驱动电路（30），包括：驱动电路（33）以及控制电路（35），驱动电路（33）包括第一恒流通道组（331）、第二恒流通道组（333）以及第三恒流通道组（335），其中，第一恒流通道组（331）控制LED显示面板（10）的红色灯管的显示；第二恒流通道组（333）控制LED显示面板（10）的绿色灯管的显示；第三恒流通道组（335）控制LED显示面板（10）的蓝色灯管的显示；控制电路（35）包括：驱动控制电路（353），驱动控制电路（353）用于控制驱动电路（33）的导通或截止。通过将驱动电路（33）和控制电路（35）集成到显示驱动电路（30）中，并且驱动电路（33）包括三个恒流通道组，分别控制LED颗粒阵列中的三基色的有序显示，实现了LED显示器的控制电路（35）占用面板的面积小、设计简单、刷新率高且功耗小的效果。

Description

LED显示器
技术领域 本发明涉及 LED设备领域， 具体而言， 涉及一种 LED显示器。 背景技术 当前 LED显示器单元板的设计采用 LED、 P-MOS管、 LED驱动电路分立摆放的 方式。 如图 lb所示： 图中的 LED颗粒为四腿 R/G/B共阳三合一 LED, 1脚为公共阳 极， 2/3/4分别为 B/G/R三基色 LED的阴极； 外部显示驱动电路 30'， 其控制端口之一 恒流控制信号输出端口，之二行供电控制端口，二者相互配合实现 LED阵列显示工作。 图 la至 lc是根据现有技术中的三阳合一的 LED颗粒的 LED驱动电路的分立摆 放示意图。 如图 la所示， 该 LED驱动电路包括三个逻辑电路及其与之相对应的恒流 通道组， 分别为控制 LED单元板中 R/G/B显示的 LED驱动控制电路， 这三个集成电 路内部架构相同，在外部显示驱动电路 30'的控制下，驱动 LED阵列显示。当前的 LED 驱动电路包含若干个独立的恒流逻辑元件， 构成恒流阵列； 每个恒流逻辑元件由恒流 输入端、恒流输出端、恒流控制端共同构成， 恒流阵列的恒流输出端共接与 LED驱动 电路的外接引脚 GND; 恒流阵列由 LED驱动电路内部逻辑电路统一控制， 实现各个 独立的恒流逻辑元件有序工作， 控制外部 LED的显示； 内部逻辑电路还包含 LED驱 动电路输入信号端口和输出信号端口两部分， 其中输入信号端口连接至外部显示驱动 电路 30'的恒流控制信号输出端口， 输出信号端口用于级联下一级 LED驱动电路的输 入信号端口或者空置；图 lc中所示的 P-MOS元件，受控于行供电控制端口，实现 LED 阵列的逐行供电控制。
LED单元板由 M行 *N列 LED矩阵排列构成， 单行 LED的阳极互联至 P-MOS 的漏极 (Drain),单列 LED基色的共同阴极互联至 LED驱动电路的恒流输入端; P-MOS 的源极 （Source)连接到了供电端 VCC， 栅极 （Gate)连接到了行供电控制端口； 在显 示驱动电路 30'的控制下，打开某一 P-MOS的漏极 Drain,为这一行 LED的阳极供电， 同时恒流控制信号输出端口控制 LED 驱动电路的逻辑电路， 控制恒流阵列的有序导 通， 实现这一行 LED电流的有序导通至 GND， 实现 LED的有序点亮。 由上述描述可知， 由于 P-MOS、 LED驱动电路、 显示驱动电路 30'都为独立封装 的电子元件， 在一定的扫描方式、 一定的 P-MOS负载下， 一定分辨率的 LED阵列显 示所用的 P-MOS、 LED驱动电路、显示驱动电路 30'占用的 PCB面积为一定值， 即这 些元件所占用的 PCB面积为一定值， 在应用于高密度 LED显示器的控制方式时， 必 然带来刷新率低、 设计难度高的问题。 另外， 图 2a至 2c是根据现有技术中 6腿 R/G/B三合一 LED的 LED驱动电路的 分立摆放电路示意图。其中， 图 2b中每个 6腿 R/G/B三合一 LED的阳极有 3个引脚， 分别为 1， 2， 3， 对应至内部的 R/G/B阳极， 阴极有 3个引脚， 分别为 4， 5， 6， 分 别对应至内部的 B/G/R阴极； LED单元板由 M行 *N列 LED矩阵排列构成，单行 LED 的阳极互联至 P-MOS的漏极（Drain), 单列 LED的共同基色阴极互联至 LED驱动电 路的输入端； P-MOS的源极 （Source)连接到了供电端 VCC， 栅极 （Gate) 连接到了 显示驱动电路 30'的供电控制逻辑部分， 漏极（Drain)为连接到了 LED单元板的一组 LED阳极 （图中为单行 LED, 实际该组定义并非单一定义为一行）； LED驱动控制电 路的控制端与 LED驱动电路控制部分的一个支路连接， LED点亮的驱动电流从 LED 的阴极（4， 5， 6管脚）流经 LED驱动电路的输入端及 LED驱动电路的输出端至 GND; 显示驱动电路 30'包含行供电控制逻辑部分和 LED驱动电路控制部分， 在其控制下， 实现 LED单元板显示工作。 图 3a至 3c是根据现有技术中 R/G/B独立 LED的 LED驱动电路的分立摆放电路 示意图。 如图 3b所示， R/G/B独立 LED颗粒的阳极为引脚 1， 阴极为引脚 2， 应用中 R/G/B并行焊接，作为一个全彩像素点； LED单元板由 M行 *N列 LED矩阵排列构成， 单行 LED的阳极互联至 P-MOS的漏极 (Drain),单列 LED的共同基色阴极互联至 LED 驱动控制电路的输入端； P-MOS的源极 (Source) 连接到了供电端 VCC， 栅极 （Gate) 连接到了显示驱动电路 30'的供电控制逻辑部分， 漏极（Drain)连接到了 LED单元板 的一组 LED阳极 （图 3a中为单行 LED, 实际该组定义并非单一定义为一行）； LED 驱动电路的控制端与 LED驱动电路控制部分的一个支路连接， LED点亮的驱动电流 从 LED颗粒的阴极 （2管脚） 流经 LED驱动电路的输入端及 LED驱动电路的输出端 至 GND; 显示驱动电路 30'包含行供电控制逻辑部分和 LED驱动电路控制部分， 在其 控制下， 实现 LED单元板显示工作。 由上述可知， 由于 R/G/B各基色发光二极管工作电压不同， 其中红色发光二极管 的典型工作电压为 1.8-2V, 绿、 蓝发光二极管的典型工作电压为 3.4-3.6V, 为了保证 G/B基色发光二极管的工作电压正常，那么 P-MOS的输出电压必然要大于绿、蓝发光 二极管的典型电压加上 LED驱动电路的典型恒流电压。这样， 红色发光二极管相对于 绿、蓝发光二极管的电压差就要施加于 LED驱动电路之上， 通过热量散发出去， 这样 LED显示器的功耗就会很大。 针对现有技术中 LED显示器的控制电路占用的 PCB面积大、 刷新率低且功耗大 的问题， 目前尚未提出有效的解决方案。 发明内容 针对相关技术 LED显示器的控制电路占用的 PCB面积大， 刷新率低且功耗大的 问题， 目前尚未提出有效的解决方案， 为此， 本发明的主要目的在于提供一种 LED显 示器， 以解决上述问题。 为了实现上述目的， 根据本发明的一个方面， 提供了一种 LED显示器， 该显示器 包括： LED显示面板； 显示驱动电路， 包括： 驱动电路以及控制电路， 驱动电路包括 第一恒流通道组、 第二恒流通道组以及第三恒流通道组， 其中， 第一恒流通道组， 包 括一个或多个恒流逻辑元件， 其中， 每个恒流逻辑元件的第一端分别与第一供电设备 的电源端连接， 每个恒流逻辑元件的第三端分别与控制电路的驱动控制端口的第一 R 显示控制子端口连接，每个恒流逻辑元件的第二端分别与 LED显示面板中对应列中的 各个 LED颗粒中的红色灯管的阴极连接，用于控制 LED显示面板的红色灯管的显示； 第二恒流通道组， 包括一个或多个恒流逻辑元件， 其中， 每个恒流逻辑元件的第一端 分别与第二供电设备的电源端连接， 每个恒流逻辑元件的第三端分别与控制电路的驱 动控制端口的第一 G显示控制子端口连接， 每个恒流逻辑元件的第二端分别与 LED 显示面板中对应列中的各个 LED颗粒中的绿色灯管的阴极连接， 用于控制 LED显示 面板的绿色灯管的显示； 第三恒流通道组， 包括一个或多个恒流逻辑元件， 其中， 每 个恒流逻辑元件的第一端分别与第三供电设备的电源端连接， 每个恒流逻辑元件的第 三端分别与控制电路的驱动控制端口的第一 B显示控制子端口连接， 每个恒流逻辑元 件的第二端分别与 LED显示面板中对应列中的各个 LED颗粒中的蓝色灯管的阴极连 接， 用于控制 LED显示面板的蓝色灯管的显示； 控制电路， 包括： 驱动控制电路， 其 中， 驱动控制电路， 通过驱动控制端口与驱动电路的第三端连接， 用于控制驱动电路 的导通或截止； 其中， 驱动电路用于控制 LED显示面板的有序显示。 进一步地， 驱动控制电路用于通过第一 R显示控制子端口控制第一恒流通道组中 的各个恒流逻辑元件导通，各个恒流逻辑元件导通，分别为与恒流逻辑元件对应的 LED 显示面板列中的 LED颗粒中的红色灯管提供电流通路，以控制与场效应管对应的 LED 显示面板行中的 LED颗粒的红色灯管的显示； 驱动控制电路还用于通过第一 G显示 控制子端口控制第二恒流通道组中的各个恒流逻辑元件导通，各个恒流逻辑元件导通， 分别为与恒流逻辑元件对应的 LED显示面板列中的 LED颗粒中的绿色灯管提供电流 通路， 以控制与场效应管对应的 LED显示面板行中的 LED颗粒的绿色灯管的显示； 以及驱动控制电路还用于通过第一 B显示控制子端口控制第三恒流通道组中的各个恒 流逻辑元件导通， 各个恒流逻辑元件导通， 分别为与恒流逻辑元件对应的 LED显示面 板列中的 LED颗粒中的蓝色灯管提供电流通路， 以控制与场效应管对应的 LED显示 面板行中的 LED颗粒的蓝色灯管的显示。 进一步地， 显示驱动电路还包括： 开关电路， 其中， 开关电路的第一端连接至供 电设备的接地端， 开关电路的第二端与 LED显示面板的阳极连接； 以及控制电路还包 括： 供电控制电路， 其中， 供电控制电路， 通过供电控制端口与开关电路的第三端连 接， 用于控制开关电路的打开或闭合； 其中， 开关电路用于控制对 LED显示面板的供 电。 进一步地， 开关电路包括一个子开关电路， 子开关电路包括一个或多个场效应管， 其中， 每个场效应管的源极分别与供电设备的接地端连接； 每个场效应管的漏极分别 与 LED显示面板中对应行中的各个 LED颗粒的阴极连接； 以及每个场效应管的栅极 分别与供电控制端口中的对应的接线端子连接。 进一步地，供电控制电路用于控制每个场效应管打开，以对与场效应管对应的 LED 显示面板的行中的 LED颗粒供电。 进一步地， 场效应管为 N-MOS管， LED显示面板包括 M行 N列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、 绿色灯管以及蓝色灯管， 其中， 每行中第 i个 LED 颗粒中的红色灯管的阴极、绿色灯管的阴极以及蓝色灯管的阴极并联连接于第 i节点， 每行中的各个节点并联连接， 分别与开关电路中对应的一个 N-MOS管的漏极连接； 每列中的各个 LED颗粒的红色灯管的阳极分别并联连接， 作为 LED显示面板的阳极 的一个接线端子， 分别与第一恒流通道组中对应的一个恒流逻辑元件的第二端连接； 每列中的各个 LED颗粒的绿色灯管的阳极分别并联连接， 作为 LED显示面板的阳极 的一个接线端子， 分别与第二恒流通道组中对应的一个恒流逻辑元件的第二端连接； 以及每列中的各个 LED颗粒的蓝色灯管的阳极分别并联连接， 作为 LED显示面板的 阳极的一个接线端子， 分别与第三恒流通道组中对应的一个恒流逻辑元件的第二端连 接。 进一步地， 场效应管为 N-MOS管， LED显示面板包括 M行 N列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、绿色灯管以及蓝色灯管， 其中， 每行中的各个 LED 颗粒中的红色灯管的阴极、 绿色灯管的阴极以及蓝色灯管的阴极并联连接， 分别与开 关电路中对应的一个 N-MOS管的漏极连接； 每列中的各个 LED颗粒的红色灯管的阳 极分别并联连接， 分别与第一恒流通道组中对应的一个恒流逻辑元件的第二端连接； 每列中的各个 LED颗粒的绿色灯管的阳极分别并联连接，分别与第二恒流通道组中对 应的一个恒流逻辑元件的第二端连接；以及每列中的各个 LED颗粒的蓝色灯管的阳极 分别并联连接， 分别与第三恒流通道组中对应的一个恒流逻辑元件的第二端连接。 进一步地， 开关电路包括第一子开关电路和第二子开关电路， 其中， 第一子开关 电路，包括一个或多个场效应管，每个场效应管的源极分别与供电设备的接地端连接， 每个场效应管的漏极分别与 LED显示面板中对应行中各个 LED颗粒中的红色灯管的 阴极连接， 每个场效应管的栅极分别与供电控制端口中对应的接线端子连接， 用于控 制 LED显示面板的红色灯管的供电；以及第二子开关电路，包括一个或多个场效应管， 每个场效应管的源极分别与供电设备的接地端连接， 每个场效应管的漏极分别与 LED 显示面板中对应行中各个 LED颗粒中的绿色灯管和蓝色灯管的阴极连接，每个场效应 管的栅极分别与供电控制端口中对应的接线端子连接，用于控制 LED显示面板的绿色 灯管和蓝色灯管的供电。 进一步地， 供电控制电路用于控制第一子开关电路中的一个场效应管打开， 以对 与第一子开关电路中的场效应管对应的 LED显示面板的行中的 LED颗粒中的红色灯 管供电； 供电控制电路还用于控制第二开关电路中与第一子开关电路中的一个场效应 管相对应的场效应管打开，以对与第一子开关电路中的场效应管对应的 LED显示面板 行中的 LED颗粒中的绿色灯管和蓝色灯管供电； 驱动控制电路用于通过第二 R显示 控制子端口控制第一恒流通道组中的各个恒流逻辑元件导通， 各个恒流逻辑元件导通 之后， 分别为与恒流逻辑元件对应的 LED显示面板列中的 LED颗粒中的红色灯管提 供电流通路， 以控制与场效应管对应的 LED显示面板行中的 LED颗粒的红色灯管的 显示； 驱动控制电路还用于通过第二 G显示控制子端口控制第二恒流通道组中的各个 恒流逻辑元件导通， 各个恒流逻辑元件导通之后， 分别为与恒流逻辑元件对应的 LED 显示面板列中的 LED颗粒中的绿色灯管提供电流通路，以控制与场效应管对应的 LED 显示面板行中的 LED 颗粒的绿色灯管的显示； 以及驱动控制电路还用于通过第二 B 显示控制子端口控制第三恒流通道组中的各个恒流逻辑元件导通， 各个恒流逻辑元件 导通之后， 分别为与恒流逻辑元件对应的 LED显示面板列中的 LED颗粒中的蓝色灯 管提供电流通路， 以控制与场效应管对应的 LED显示面板行中的 LED颗粒的蓝色灯 管的显示。 进一步地， 场效应管为 N-MOS管， LED显示面板包括 M行 N列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、 绿色灯管以及蓝色灯管， 其中， 每行中第 i个 LED 颗粒中的红色灯管的阴极并联连接于第 i节点， 每行中的各个节点并联连接， 分别与 第一子开关电路中对应的一个 N-MOS管的漏极连接； 每行中第 j个 LED颗粒中绿色 灯管的阴极和蓝色灯管的阴极并联连接于第 j节点， 每行中的各个节点并联连接， 分 别与第二子开关电路中对应的一个 N-MOS管的漏极连接； 每列中的各个 LED颗粒的 红色灯管的阳极分别并联连接， 分别与第一恒流通道组中对应的一个恒流逻辑元件的 第二端连接； 每列中的各个 LED颗粒的绿色灯管的阳极分别并联连接， 分别与第二恒 流通道组中对应的一个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的蓝色灯 管的阳极分别并联连接， 分别与第三恒流通道组中对应的一个恒流逻辑元件的第二端 连接。 进一步地， 场效应管为 N-MOS管， LED显示面板包括 M行 N列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、绿色灯管以及蓝色灯管， 其中， 每行中的各个 LED 颗粒中的红色灯管的阴极并联连接， 分别与第一子开关电路中对应的一个 N-MOS管 的漏极连接； 每行中的各个 LED 颗粒中的绿色灯管的阴极和蓝色灯管的阴极并联连 接， 分别与第二子开关电路中对应的一个 N-MOS管的漏极连接； 每列中的各个 LED 颗粒的红色灯管的阳极分别并联连接， 分别与第一恒流通道组中对应的一个恒流逻辑 元件的第二端连接； 每列中的各个 LED颗粒的绿色灯管的阳极分别并联连接， 分别与 第二恒流通道组中对应的一个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的 蓝色灯管的阳极分别并联连接， 分别与第三恒流通道组中对应的一个恒流逻辑元件的 第二端连接。 进一步地， LED显示面板中的 LED颗粒中包括红色灯管、 绿色灯管以及蓝色灯 管， 其中， 红色灯管、 绿色灯管以及蓝色灯管集成在 LED颗粒中； 或者， 红色灯管、 绿色灯管以及蓝色灯管分别独立封装后设置在 LED颗粒中。 通过本发明的 LED显示器， 将驱动电路和控制电路集成到显示驱动电路中， 使得 在原 LED显示面板面积不变的情况下， 可以放置更多的显示驱动电路， 从而在面积一 定的 LED显示器上， LED颗粒与显示驱动电路的数量比减小， 实现了刷新率的提高， 并且驱动电路包括第一恒流通道组、 第二恒流通道组以及第三恒流通道组， 三个恒流 通道组分别控制 LED显示面板中 M行 *N列 LED颗粒阵列中的 R/G/B基色的有序显 示， 并且对 LED显示面板中的 LED颗粒的红色灯管和蓝色 /绿色灯管分别提供不同的 工作电压， 可以降低 LED显示器的功耗。 解决了现有技术中 LED显示器的控制电路 占用的 PCB面积大且刷新率低的问题， 实现了 LED显示器的控制电路占用面板的面 积小、 设计简单、 刷新率高且功耗小的效果。 附图说明 此处所说明的附图用来提供对本发明的进一步理解， 构成本发明的一部分， 本发 明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的不当限定。 在附图 中- 图 la根据现有技术中的三阳合一的 LED颗粒的 LED驱动电路的分立摆放示意图； 图 lb是图 la中虚线部分 A处的局部放大图； 图 lc是图 lb中虚线部分 A1处的局部放大图； 图 2a是根据现有技术中 6腿 R/G/B三合一 LED的 LED驱动电路的分立摆放电路 示意图； 图 2b是图 2a中虚线部分 B处的局部放大图； 图 2c是图 2b中虚线部分 B1处的局部放大图； 图 3a是根据现有技术中 R/G/B独立 LED的 LED驱动电路的分立摆放电路示意图； 图 3b是图 3a中虚线部分 C处的局部放大图； 图 3c是图 3b中虚线部分 C1处的局部放大图； 图 4是根据本发明实施例一的 LED显示器的结构示意图； 图 5是根据本发明的优选实施例的 LED显示器的结构示意图； 图 5a是根据本申请图 5所示的优选实施例的 LED显示器的详细结构示意图； 图 5b是图 5a中虚线部分 D处的局部放大图； 图 5c是图 5b中虚线部分 D1处的局部放大图； 图 6a是根据本发明实施例二的 LED显示器的结构示意图； 图 6b是图 6a中虚线部分 E处的局部放大图； 图 6c是图 6b中虚线部分 E1处的局部放大图； 图 7a是根据本发明实施例三的 LED显示器的结构示意图； 图 7b是图 7a中虚线部分 F处的局部放大图； 图 7c是图 7b中虚线部分 F1处的局部放大图； 图 7d是图 7a中虚线部分 G处的开关电路的局部放大图； 图 7e是图 7d中虚线部分 G1处的局部放大图； 图 8a是根据本发明实施例四的 LED显示器的结构示意图； 图 8b是图 8a中虚线部分 H处的局部放大图； 图 8c是图 8b中虚线部分 HI处的局部放大图； 图 9a是根据本发明的实施例五的 LED显示器的结构示意图； 图 9b是图 9a中虚线部分 I处的局部放大图； 图 9c是图 9b中虚线部分 II处的局部放大图； 图 10a是根据本发明的实施例六的 LED显示器的结构示意图； 图 10b是图 10a中虚线部分 J处的局部放大图； 图 10c是图 10b中虚线部分 J1处的局部放大图； 图 10d是图 10a中虚线部分 K处的局部放大图； 图 10e是图 10d中虚线部分 K1处的局部放大图； 以及 图 11是根据本发明实施例的 LED控制系统的结构示意图。 具体实施方式 需要说明的是， 在不冲突的情况下， 本发明中的实施例及实施例中的特征可以相 互组合。 下面参考附图并结合实施例来详细说明本发明。 实施例一： 图 4是根据本发明实施例一的 LED显示器的结构示意图。 如图 4所示， 该 LED 显示器包括： LED显示面板 10; 显示驱动电路 30， 包括： 驱动电路 33以及控制电路 35， 驱动电路 33包括第一恒流通道组 331、 第二恒流通道组 333以及第三恒流通道组 335, 其中， 第一恒流通道组 331， 包括一个或多个恒流逻辑元件， 其中， 每个恒流逻 辑元件的第一端分别与第一供电设备 51的电源端连接，每个恒流逻辑元件的第三端分 别与控制电路的驱动控制端口的第一 R显示控制子端口连接， 每个恒流逻辑元件的第 二端分别与 LED显示面板中对应列中的各个 LED颗粒中的红色灯管的阴极连接， 用 于控制 LED显示面板的红色灯管的显示； 第二恒流通道组 333， 包括一个或多个恒流 逻辑元件， 其中， 每个恒流逻辑元件的第一端分别与第二供电设备 53的电源端连接， 每个恒流逻辑元件的第三端分别与控制电路的驱动控制端口的第一 G显示控制子端口 连接， 每个恒流逻辑元件的第二端分别与 LED显示面板中对应列中的各个 LED颗粒 中的绿色灯管的阴极连接， 用于控制 LED显示面板的绿色灯管的显示； 第三恒流通道 组 335， 包括一个或多个恒流逻辑元件， 其中， 每个恒流逻辑元件的第一端分别与第 三供电设备的电源端连接， 每个恒流逻辑元件的第三端分别与控制电路的驱动控制端 口的第一 B显示控制子端口连接， 每个恒流逻辑元件的第二端分别与 LED显示面板 中对应列中的各个 LED颗粒中的蓝色灯管的阴极连接， 用于控制 LED显示面板的蓝 色灯管的显示； 控制电路， 包括： 驱动控制电路， 其中， 驱动控制电路， 通过驱动控 制端口与驱动电路的第三端连接， 用于控制驱动电路的导通或截止； 其中， 驱动电路 用于控制 LED显示面板的有序显示。 通过本发明的 LED显示器， 将驱动电路 33和控制电路 35集成到显示驱动电路 30中， 使得在原 LED显示面板 10面积不变的情况下， 可以放置更多的显示驱动电路 30, 从而在面积一定的 LED显示器上， LED颗粒与显示驱动电路 30的数量比减小， 实现了刷新率的提高，并且驱动电路 33包括第一恒流通道组 331、第二恒流通道组 333 以及第三恒流通道组 335， 三个恒流通道组分别控制 LED显示面板 10中 M行 *N列 LED颗粒阵列中的 R/G/B基色的有序显示， 并且对 LED显示面板 10中的 LED颗粒 的红色灯管和蓝色 /绿色灯管分别提供不同的工作电压， 可以降低 LED显示器的功耗。 解决了现有技术中 LED显示器的控制电路 35占用的 PCB面积大且刷新率低的问题， 实现了 LED显示器的控制电路 35占用面板的面积小、 设计简单、 刷新率高且功耗小 的效果。 其中， 第一供电设备、 第二供电设备以及第三供电设备未在图 4中示出， 第一供 电设备对第一恒流通道组的供电电压优选为 1.6V， 此电压值由绿、 蓝发光二极管的典 型工作电压 （3.4-3.6V)减去红色发光二极管的典型工作电压 （1.8-2V)所得， 且第一 供电设备对第一恒流通道组的供电电压低于第二供电设备和第三供电设备分别对第二 恒流通道组 /第三恒流通道组的供电电压。 LED显示器可以包括： LED显示面板 10; 显示驱动电路 30， 包括： 开关电路 31、 驱动电路 33以及控制电路 35， 其中， 开关电路 31和驱动电路 33中之一的第一端连 接至供电设备的电源端， 另一个的第一端连接至供电设备的接地端； 开关电路 31和驱 动电路 33中之一的第二端与 LED显示面板 10的阳极连接， 另一个的第二端与 LED 显示面板 10的阴极连接； 控制电路 35， 包括： 供电控制电路 351和驱动 353， 其中， 供电控制电路 351， 通过供电控制端口与开关电路 31的第三端连接， 用于控制开关电 路 31的打开或闭合； 驱动控制电路 353， 通过驱动控制端口与驱动电路 33的第三端 连接， 用于控制驱动电路 33的导通或截止。其中， 开关电路 31用于控制对 LED显示 面板 10的供电， 驱动电路 33用于控制 LED显示面板 10的有序显示。 通过将开关电路 31、 驱动电路 33和控制电路 35集成到显示驱动电路 30中， 使 得在原 LED显示面板 10面积不变的情况下， 可以放置更多的显示驱动电路 30， 从而 在面积一定的 LED显示器上， LED颗粒与显示驱动电路 30的数量比减小， 实现了刷 新率的提高， 并且 LED显示面板 10中 M行 *N列 LED颗粒阵列与显示驱动电路 30 的接接关系更清晰， 连接线路更少， 降低了 PCB的设计难度。解决了现有技术中 LED 显示器的控制电路 35占用的 PCB面积大且刷新率低的问题，实现了 LED显示器的控 制电路 35占用面板的面积小、 设计简单且刷新率高的效果。 图 5是根据本发明的优选实施例的 LED显示器的结构示意图； 图 5a是根据本申 请图 5所示的优选实施例的 LED显示器的详细结构示意图； 图 5b是图 5a中虚线部分 D处的局部放大图； 图 5c是图 5b中虚线部分 D1处的局部放大图。 如图 5所示， 该显示器中的显示驱动电路还可以包括： 开关电路 31， 其中， 开关 电路 31的第一端连接至供电设备的接地端，开关电路 31的第二端与 LED显示面板的 阳极连接； 该显示器中的控制电路还可以包括： 供电控制电路， 其中， 供电控制电路， 通过供电控制端口与开关电路的第三端连接，用于控制开关电路 31的打开或闭合； 其 中， 开关电路 31用于控制对 LED显示面板的供电。 如图 5a、 5b、 5c所示， 开关电路 31可以包括一个子开关电路， 该子开关电路包 括一个或多个场效应管， 其中， 每个场效应管的源极分别与供电设备的电源端或接地 端连接；每个场效应管的漏极分别与 LED显示面板 10中对应行中的各个 LED颗粒的 阳极或阴极连接；每个场效应管的栅极分别与供电控制端口中的对应的接线端子连接。 根据本发明的上述实施例，驱动电路 33可以包括一个恒流通道组，恒流通道组包 括一个或多个恒流逻辑元件， 其中， 每个恒流逻辑元件的第一端分别与供电设备的电 源端或接地端连接； 每个恒流逻辑元件的第二端分别与 LED显示面板 10中对应列中 的 LED颗粒的阳极或阴极连接；每个恒流逻辑元件的第三端分别与驱动控制端口中对 应的接线端子连接。 具体地， 供电控制电路 351用于控制每个场效应管打开， 以对与场效应管对应的 LED显示面板 10的行中的 LED颗粒供电； 驱动控制电路 353用于控制恒流通道组中 的各个恒流逻辑元件导通， 各个恒流逻辑元件导通之后分别为与恒流逻辑元件对应的 LED显示面板 10的列中的 LED颗粒提供电流通路， 以控制 LED颗粒的有序显示。 具体地， 场效应管可以为 P-MOS管， LED显示面板 10包括 M行 N列个 LED颗 粒， 每个 LED颗粒分别包括红色灯管、 绿色灯管以及蓝色灯管， 其中， 每行中第 i个 LED颗粒中的红色灯管的阳极、 绿色灯管的阳极以及蓝色灯管的阳极并联连接于第 i 节点， 每行中的各个节点并联连接， 分别与开关电路 31中对应的一个 P-MOS管的漏 极连接； 每列中的各个 LED颗粒的红色灯管的阴极分别并联连接， 分别与恒流通道组 中对应的一个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的绿色灯管的阴极 分别并联连接， 分别与恒流通道组中对应的一个恒流逻辑元件的第二端连接； 每列中 的各个 LED颗粒的蓝色灯管的阴极分别并联连接，分别与恒流通道组中对应的一个恒 流逻辑元件的第二端连接。 其中， l≤i≤N， i为自然数， 红色灯管、 绿色灯管以及蓝色 灯管可以分别为 R/G/B基色发光二极管。 其中， 在本发明的上述实施例中， 图 5b为图 5a中虚线涵盖的部分 D处的局部放 大图， 图 5c所示的 LED颗粒， 为图 5b中虚线涵盖的部分 D1处的局部放大图， 图中 1脚为公共阳极， 2/3/4分别为 B/G/R三基色发光二极管的阴极。 显示驱动电路 30包括子开关电路、 恒流通道组以及控制电路 35。 上述子开关电 路 31包含 N个 P-MOS管， 其中， 每个 P-MOS管的漏极分别作为控制电路 35的输出 引脚中的一个引脚， P-MOS管的源极连接于显示驱动电路 30的供电端（即 VCC端）， P-MOS管的栅极与控制电路 35的供电控制端口中的一个接线端子连接； 恒流通道组 可以包含 N个恒流逻辑元件 （也可以称为恒流逻辑电路）， 每个恒流逻辑元件的第二 端（在该实施例中为恒流逻辑元件的输入端）分别作为显示驱动电路 30的输入引脚中 的一个， 所有恒流逻辑元件的第一端 （即输出端） 内部互联， 作为显示驱动电路 30 的接地端 （即 GND端） 与供电设备的接地端连接， 恒流逻辑元件的第三端 （在该实 施例中为恒流逻辑元件的控制端）与控制电路 35的驱动控制端口连接，用于接收驱动 电路 33的恒流控制信号。 在实施例一中， LED显示面板 10 (可称为 LED单元， 也可以称为 LED单元板） 包括 M行 *N列 LED颗粒的矩阵排列， 其中， 单行 LED颗粒的阳极互联连接至第 i 节点，将各个节点连接至开关电路 31中子开关电路 31中的一个 P-MOS管的漏极对应 的输出引脚， 单列 LED颗粒中的相同基色的阴极互联至显示驱动电路 30的恒流通道 组的恒流逻辑元件的输入端， 即单列 LED颗粒中红色灯管 （也即 R发光二极管） 的 共同阴极互联连接至显示驱动电路 30的恒流通道组的恒流逻辑元件输入端；单列 LED 颗粒中绿色灯管 （也即 G基色发光二极管） 的共同阴极互联连接至显示驱动电路 30 的恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中蓝色灯管 （也即 B基色发光 二极管） 的共同阴极互联连接至显示驱动电路 30 的恒流通道组的恒流逻辑元件输入
上述 LED显示面板 10在显示驱动电路 30的控制下，供电控制电路 351通过供电 控制端口控制子开关电路 31 (可以为 P-MOS通道组）中的某一个 P-MOS管处于开启 状态， 为 LED显示面板 10上的对应行中的 LED颗粒的正极供电， 驱动控制电路 353 通过驱动控制端口将恒流控制信号输出到恒流通道组中的各个恒流逻辑元件， 以控制 各个恒流逻辑元件处于导通的工作状态，从而为对应列的 LED颗粒的基色阴极提供电 流通路， 并实现 LED单元的有序显示。 其中， 对应列的 LED颗粒的基色阴极包括 R G B三基色的阴极， 也即分别为对应列中 LED颗粒的红色灯管、 绿色灯管以及蓝色 灯管的有序显示。 在本发明的上述实施例中， 场效应管可以为 P-MOS管， LED显示面板 10包括 M 行 N列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、 绿色灯管以及蓝色灯管， 其 中， 每行中的各个 LED颗粒中的红色灯管的阳极、绿色灯管的阳极以及蓝色灯管的阳 极并联连接， 与开关电路 31中对应的一个 P-MOS管的漏极连接； 每列中的各个 LED 颗粒的红色灯管的阴极分别并联连接， 分别与恒流通道组中对应的一个恒流逻辑元件 的第二端连接； 每列中的各个 LED颗粒的绿色灯管的阴极分别并联连接， 分别与恒流 通道组中对应的一个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的蓝色灯管 的阴极分别并联连接， 分别与恒流通道组中对应的一个恒流逻辑元件的第二端连接。 基于实施例一中示出的技术方案， 可以有第一种变形的实施方式：
LED显示面板 10中单行 LED颗粒的 R/G/B基色发光二极管的阳极互联连接至显 示驱动电路 30中开关电路 31中的一个 P-MOS管的漏极对应的输出引脚， 单列 LED 颗粒中的相同基色的阴极互联至显示驱动电路 30 的恒流通道组的恒流逻辑元件的输 入端， 即单列 LED颗粒中 R基色发光二极管的共同阴极互联连接至显示驱动电路 30 的恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 G基色发光二极管的共同阴 极互联连接至显示驱动电路 30的恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒 中蓝色灯管 B基色发光二极管的共同阴极互联连接至显示驱动电路 30的恒流通道组 的恒流逻辑元件输入端。 在这种变形方式中， 显示驱动电路 30的控制方式没有改变， 变化的仅仅是 LED 显示面板 10中单行 LED颗粒的阳极的连接关系， 在该变形方式中， 单行 LED颗粒的 R/G/B基色发光二极管的阳极直接互联，并联结至开关电路中的一个 P-MOS管的漏极 对应的输出引脚， 在该变形方式中将开关电路 31、 驱动电路 33和控制电路 35集成到 显示驱动电路 30中， 使得在原 LED显示面板 10面积不变的情况下， 可以放置更多的 显示驱动电路 30， 从而在面积一定的 LED显示器上， LED颗粒与显示驱动电路 30的 数量比减小， 实现了刷新率的提高， 并且 LED显示面板 10中 LED颗粒阵列与显示驱 动电路 30的接接关系更清晰， 连接线路更少， 降低了 PCB的设计难度。 基于实施例一中示出的技术方案， 还可以有第二种变形的实施方式： 场效应管还可以为 N-MOS管， LED显示面板 10可以包括 M行 N列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、 绿色灯管以及蓝色灯管， 其中， 每行中第 i个 LED 颗粒中的红色灯管的阴极、绿色灯管的阴极以及蓝色灯管的阴极并联连接于第 i节点， 每行中的各个节点并联连接， 与开关电路 31中对应的一个 N-MOS管的漏极连接； 每 列中的各个 LED颗粒的红色灯管的阳极分别并联连接，分别与恒流通道组中对应的一 个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的绿色灯管的阳极分别并联连 接， 分别与恒流通道组中对应的一个恒流逻辑元件的第二端连接； 每列中的各个 LED 颗粒的蓝色灯管的阳极分别并联连接， 分别与恒流通道组中对应的一个恒流逻辑元件 的第二端连接。 其中， 其中， l≤i≤N， i为自然数。 具体地， 在该第二种变形方式中， 子开关电路包含 N个 N-MOS管， 其中， 每个 N-MOS管的漏极分别作为控制电路 35的输出引脚中的一个引脚， N-MOS管的源极作 为显示驱动电路 30的接地端 （即 GND端） 与供电设备的接地端连接， N-MOS管的 栅极与控制电路 35的供电控制端口中的一个接线端子连接； 恒流通道组包含 N个恒 流逻辑元件（也可以称为恒流逻辑电路）， 每个恒流逻辑元件的第二端（即输入端）分 别作为显示驱动电路 30的输入引脚中的一个，所有恒流逻辑元件的第一端（即输出端) 内部互联， 作为显示驱动电路 30的供电端 （即 VCC端） 与供电设备的电源端连接， 恒流逻辑元件的第三端（即控制端）与控制电路 35的显示控制端口连接， 用于接收驱 动电路 33的恒流控制信号。 在上述第二种变形方式中， LED显示面板 10 (也可以称为 LED单元）包括 M行
*N列 LED颗粒的矩阵排列， 其中， 单行 LED颗粒的阴极互联连接至第 i节点， 将各 个节点连接至显示驱动电路 30中开关电路 31中的一个 N-MOS管的漏极对应的输出 引脚， 单列 LED颗粒中的相同基色的阳极互联至显示驱动电路 30的恒流通道组的恒 流逻辑元件的输入端， 即单列 LED颗粒中 R基色发光二极管的共同阳极互联连接至 显示驱动电路 30的恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 G基色发光 二极管） 的共同阳极互联连接至显示驱动电路 30 的恒流通道组的恒流逻辑元件输入 端； 单列 LED颗粒中 B基色发光二极管的共同阳极互联连接至显示驱动电路 30的恒 流通道组的恒流逻辑元件输入端。 在该第二种变形方式中，显示驱动电路 30中的供电控制电路 351通过供电控制端 口控制子开关电路 31中的任意一个 N-MOS管处于开启状态， 以对 LED显示面板 10 上的对应行中的 LED颗粒的正极供电，驱动控制电路 353通过驱动控制端口将恒流控 制信号输出到恒流通道组中的各个恒流逻辑元件， 以控制各个恒流逻辑元件处于导通 的工作状态， 从而为对应列的 LED颗粒的基色阳极提供电流通路， 并实现 LED单元 的有序显示。 其中， 对应列的 LED颗粒的基色阳极包括 R、 G、 B三基色的阳极， 也 即分别控制对应列中 LED颗粒的红色灯管、 绿色灯管或者蓝色灯管的有序显示。 基于实施例一的第二种变形方式中示出的技术方案， 也可以有下述的变形的实施 方式： 场效应管可以为 N-MOS管， LED显示面板 10可以包括 M行 N列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、绿色灯管以及蓝色灯管， 其中， 每行中的各个 LED 颗粒中的红色灯管的阴极、 绿色灯管的阴极以及蓝色灯管的阴极并联连接， 与开关电 路 31中对应的一个 N-MOS管的漏极连接； 每列中的各个 LED颗粒的红色灯管的阳 极分别并联连接， 并分别与恒流通道组中对应的一个恒流逻辑元件的第二端连接； 每 列中的各个 LED颗粒的绿色灯管的阳极分别并联连接，分别与恒流通道组中对应的一 个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的蓝色灯管的阳极分别并联连 接， 分别与恒流通道组中对应的一个恒流逻辑元件的第二端连接。 具体地，该实施方式中的 LED显示面板 10中单行 LED颗粒的阴极还可以互联连 接至显示驱动电路 30中开关电路 31中的一个 N-MOS管的漏极对应的输出引脚， 单 列 LED颗粒中的相同基色的阳极互联至显示驱动电路 30的恒流通道组的恒流逻辑元 件的输入端， 即单列 LED颗粒中红色灯管 R基色发光二极管的共同阳极互联连接至 显示驱动电路 30的恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 G基色发光 二极管的共同阳极互联连接至显示驱动电路 30的恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 B基色发光二极管的共同阳极互联连接至显示驱动电路 30的恒流通 道组的恒流逻辑元件输入端。 基于实施例一中示出的技术方案， 也可以有第三种变形的实施方式： 在该实施方式中，驱动电路 33可以包括第一恒流通道组、第二恒流通道组以及第 三恒流通道组， 其中， 第一恒流通道组， 包括一个或多个恒流逻辑元件， 其中， 每个 恒流逻辑元件的第一端分别与供电设备的电源端或接地端连接， 每个恒流逻辑元件的 第三端分别与驱动控制端口的第一 R显示控制子端口连接， 每个恒流逻辑元件的第二 端分别与 LED显示面板 10中对应列中的各个 LED颗粒中的红色灯管的阳极或阴极连 接， 用于控制 LED显示面板 10的红色灯管的显示； 第二恒流通道组， 包括一个或多 个恒流逻辑元件， 其中， 每个恒流逻辑元件的第一端分别与供电设备的电源端或接地 端连接， 每个恒流逻辑元件的第三端分别与驱动控制端口的第一 G显示控制子端口连 接，每个恒流逻辑元件的第二端分别与 LED显示面板 10中对应列中的各个 LED颗粒 中的绿色灯管的阳极或阴极连接， 用于控制 LED显示面板 10的绿色灯管的显示； 第 三恒流通道组， 包括一个或多个恒流逻辑元件， 其中， 每个恒流逻辑元件的第一端分 别与供电设备的电源端或接地端连接， 每个恒流逻辑元件的第三端分别与驱动控制端 口的第一 B显示控制子端口连接， 每个恒流逻辑元件的第二端分别与 LED显示面板 10中对应列中的各个 LED颗粒中的蓝色灯管的阳极或阴极连接， 用于控制 LED显示 面板 10的蓝色灯管的显示。 其中， 第一恒流通道组可以是 R基色恒流通道组， 第二 恒流通道组可以是 G基色恒流通道组， 第三恒流通道组可以是 B基色恒流通道组。 具体地， R基色恒流通道组可以包括一个或多个恒流逻辑元件， 这些恒流逻辑元 件的第二端（即输入端）连接至 LED显示面板 10中对应列的 LED颗粒的红色灯管的 阴极 （即 R基色阴极）， 恒流逻辑元件的第一端 （即输出端） 互联作为显示驱动电路 30的外置引脚 GND， 连接至供电设备的接地端， 恒流逻辑元件的第三端 （即控制端) 连接至驱动控制端口的第一 R显示控制子端口， 以接收驱动控制电路 353的 R显示控 制信号； G基色恒流通道组可以包括一个或多个恒流逻辑元件， 这些恒流逻辑元件的 第二端（即输入端）连接至 LED显示面板 10中对应列的 LED颗粒的绿色灯管的阴极 (即 G基色阴极）， 恒流逻辑元件的第一端 （即输出端） 互联作为显示驱动电路 30的 外置引脚 GND， 连接至供电设备的接地端， 恒流逻辑元件的第三端（即控制端）连接 至驱动控制端口的第一 G显示控制子端口，以接收驱动控制电路 353的 G显示控制信 号； B基色恒流通道组可以包括一个或多个恒流逻辑元件， 这些恒流逻辑元件的第二 端（即输入端）连接至 LED显示面板 10中对应列的 LED颗粒的蓝色灯管的阴极（即 B基色阴极）， 恒流逻辑元件的第一端 （即输出端） 互联作为显示驱动电路 30的外置 引脚 GND， 连接至供电设备的接地端， 恒流逻辑元件的第三端（即控制端）连接至驱 动控制端口的第一 B显示控制子端口， 以接收驱动控制电路 353的 B显示控制信号。 在本实施方式中， 供电控制电路 351控制每个场效应管打开， 以对与场效应管对 应的 LED显示面板 10行中的 LED颗粒供电；驱动控制电路 353用于通过第一 R显示 控制子端口控制第一恒流通道组中的各个恒流逻辑元件导通，各个恒流逻辑元件导通， 分别为与恒流逻辑元件对应的 LED显示面板 10列中的 LED颗粒中的红色灯管提供电 流通路， 以控制与场效应管对应的 LED显示面板 10行中的 LED颗粒的红色灯管的显 示； 驱动控制电路 353还用于通过第一 G显示控制子端口控制第二恒流通道组中的各 个恒流逻辑元件导通， 各个恒流逻辑元件导通， 分别为与恒流逻辑元件对应的 LED显 示面板 10列中的 LED颗粒中的绿色灯管提供电流通路，以控制与场效应管对应的 LED 显示面板 10行中的 LED颗粒的绿色灯管的显示； 驱动控制电路 353还用于通过第一 B显示控制子端口控制第三恒流通道组中的各个恒流逻辑元件导通， 各个恒流逻辑元 件导通，分别为与恒流逻辑元件对应的 LED显示面板 10列中的 LED颗粒中的蓝色灯 管提供电流通路， 以控制与场效应管对应的 LED显示面板 10行中的 LED颗粒的蓝色 灯管的显示。 在这种实施方式中， 显示驱动电路 30的供电控制端口没有改变，驱动控制端口包 括三个子控制端口分别控制第一 /第二 /第三恒流通道组的导通或截止，以使得开关电路 和驱动电路分别控制 LED显示面板中单行 LED颗粒的供电和列 LED颗粒的有序显示， 在该变形方式中，将开关电路 31、驱动电路 33和控制电路 35集成到显示驱动电路 30 中， 只不过是驱动电路包括三组恒流通道组， 仍然可以在 LED显示面板 10面积不变 的情况下， 可以放置更多的显示驱动电路 30， 从而在面积一定的 LED显示器上， LED 颗粒与显示驱动电路 30的数量比减小， 实现了刷新率的提高， 并且 LED显示面板 10 中 LED颗粒阵列与显示驱动电路 30的接接关系更清晰， 连接线路更少， 降低了 PCB 的设计难度。 在该实施方式中， 场效应管可以为 P-MOS管， LED显示面板 10包括 M行 N列 个 LED颗粒， 每个 LED颗粒分别包括红色灯管、 绿色灯管以及蓝色灯管， 其中， 每 行中第 i个 LED颗粒中的红色灯管的阳极、 绿色灯管的阳极以及蓝色灯管的阳极并联 连接于第 i节点，每行中的各个节点并联连接，分别与开关电路 31中对应的一个 P-MOS 管的漏极连接； 每列中的各个 LED颗粒的红色灯管的阴极分别并联连接， 分别与第一 恒流通道组中对应的一个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的绿色 灯管的阴极分别并联连接， 分别与第二恒流通道组中对应的一个恒流逻辑元件的第二 端连接； 每列中的各个 LED颗粒的蓝色灯管的阴极分别并联连接， 分别与第三恒流通 道组中对应的一个恒流逻辑元件的第二端连接。 其中， l≤i≤N， i为自然数， 其中， 红 色灯管、 绿色灯管以及蓝色灯管可以分别为 R/G/B基色发光二极管。 另夕卜， LED显示面板 10 (也可以称为 LED单元）包括 M行 *N列 LED颗粒的矩 阵排列， 其中， 单行 LED颗粒的阳极互联连接至第 i节点， 将各个节点连接至显示驱 动电路 30中开关电路 31中的一个 P-MOS管的漏极对应的输出引脚， 单列 LED颗粒 中的相同基色的阴极互联至显示驱动电路 30 的第一恒流通道组的恒流逻辑元件的输 入端， 即单列 LED颗粒中 R基色发光二极管的共同阴极互联连接至显示驱动电路 30 的第二恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 G基色发光二极管的共 同阴极互联连接至显示驱动电路 30的恒流通道组的恒流逻辑元件输入端； 单列 LED 颗粒中 B基色发光二极管的共同阴极互联连接至显示驱动电路 30的第三恒流通道组 的恒流逻辑元件输入端。 在该实施例中显示驱动电路 30的供电控制电路 351通过供电控制端口控制子开关 电路 31中的任意一个 P-MOS管处于开启状态， 为 LED显示面板 10上的对应行中的 LED颗粒的正极供电， 驱动控制电路 353分别通过第一 R显示控制子端口 /第一 G显 示控制子端口 /第一 B显示控制子端口将 R显示控制信号 /G显示控制信号 /B显示控制 信号输出到第一恒流通道组 /第二恒流通道组 /第三恒流通道组中的各个恒流逻辑元件， 以分别控制三个恒流通道组中的各个恒流逻辑元件处于导通的工作状态， 从而为对应 列的 LED颗粒的 R基色阴极、 G基色阴极以及 B基色阴极提供电流通路，并实现 LED 的有序显示。 其中， 对应列的 LED颗粒的 R基色阴极、 G基色阴极以及 B基色阴极 分别为对应列中 LED颗粒的红色灯管、 绿色灯管或者蓝色灯管的阴极。其中， 子开关 电路也可以称为 P-MOS通道。 基于实施例一中第三种变形的实施方式示出的技术方案， 也可以有下述的变形的 实施方式： 场效应管可以为 P-MOS管， LED显示面板 10可以包括 M行 N列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、绿色灯管以及蓝色灯管， 其中， 每行中的各个 LED 颗粒中的红色灯管的阳极、 绿色灯管的阳极以及蓝色灯管的阳极并联连接， 分别与开 关电路 31中对应的一个 P-MOS管的漏极连接；每列中的各个 LED颗粒的红色灯管的 阴极分别并联连接，分别与第一恒流通道组中对应的一个恒流逻辑元件的第二端连接; 每列中的各个 LED颗粒的绿色灯管的阴极分别并联连接，分别与第二恒流通道组中对 应的一个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的蓝色灯管的阴极分别 并联连接， 分别与第三恒流通道组中对应的一个恒流逻辑元件的第二端连接。 具体地， LED显示面板 10中单行 LED颗粒的阳极互联连接至显示驱动电路 30 中开关电路 31中的一个 P-MOS管的漏极对应的输出引脚，单列 LED颗粒中的相同基 色的阴极互联至显示驱动电路 30的第一恒流通道组的恒流逻辑元件的输入端，即单列 LED颗粒中 R基色发光二极管的共同阴极互联连接至显示驱动电路 30的第二恒流通 道组的恒流逻辑元件输入端； 单列 LED颗粒中 G基色发光二极管的共同阴极互联连 接至显示驱动电路 30的恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 B基色 发光二极管的共同阴极互联连接至显示驱动电路 30 的第三恒流通道组的恒流逻辑元 件输入端。 在该实施方式中， 与实施例一中第三种变形的实施方式示出的技术方案中显示驱 动电路 30的控制方式相同， 同样地，供电控制电路 351通过供电控制端口控制开关电 路 31 (即 P-MOS通道组） 中的某一个 P-MOS管处于开启状态， 为 LED显示面板 10 上的对应行中的 LED颗粒的正极供电， 驱动控制电路 353分别通过第一 R显示控制 子端口 /第一 G显示控制子端口 /第一 B显示控制子端口将 R显示控制信号 /G显示控制 信号 /B 显示控制信号输出到第一恒流通道组 /第二恒流通道组 /第三恒流通道组中的各 个恒流逻辑元件， 以分别控制三个恒流通道组中的各个恒流逻辑元件处于导通的工作 状态， 从而为对应列的 LED颗粒的 R基色阴极、 G基色阴极以及 B基色阴极提供电 流通路， 并实现 LED的有序显示。 其中， 对应列的 LED颗粒的 R基色阴极、 G基色 阴极以及 B基色阴极分别为对应列中 LED颗粒的红色灯管、 绿色灯管或者蓝色灯管 的阴极。 实施例二： 图 6a至 6c是根据本发明实施例二的 LED显示器的结构示意图。 如图 6a所示， 该 LED显示器中的场效应管还可以为 N-MOS管， LED显示面板 10可以包括 M行 N 列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、 绿色灯管以及蓝色灯管， 其中， 每行中第 i个 LED颗粒中的红色灯管的阴极、 绿色灯管的阴极以及蓝色灯管的阴极并 联连接于第 i节点， 每行中的各个节点并联连接， 分别与开关电路 31 中对应的一个 N-MOS管的漏极连接； 每列中的各个 LED颗粒的红色灯管的阳极分别并联连接， 作 为 LED显示面板 10的阳极的一个接线端子， 分别与第一恒流通道组中对应的一个恒 流逻辑元件的第二端连接； 每列中的各个 LED颗粒的绿色灯管的阳极分别并联连接， 作为 LED显示面板 10的阳极的一个接线端子， 分别与第二恒流通道组中对应的一个 恒流逻辑元件的第二端连接； 每列中的各个 LED 颗粒的蓝色灯管的阳极分别并联连 接， 作为 LED显示面板 10的阳极的一个接线端子， 分别与第三恒流通道组中对应的 一个恒流逻辑元件的第二端连接。 具体地， 如图 6a所示， R基色恒流通道组可以包括一个或多个恒流逻辑元件， 这 些恒流逻辑元件的第一端（在该实施例中为输入端）互联作为显示驱动电路 30的外置 引脚 VCCR， 连接至供电设备的电源端， 恒流逻辑元件的第二端 （即输出端） 连接至 LED显示面板 10中对应列的 LED颗粒的红色灯管的阳极（在该实施例中为 R基色阳 极）， 恒流逻辑元件的第三端 （即控制端） 连接至第一 R显示控制端口； G基色恒流 通道组可以包括一个或多个恒流逻辑元件， 这些恒流逻辑元件的第一端 （在该实施例 中为输入端）互联作为显示驱动电路 30的外置引脚 VCCG，连接至供电设备的电源端， 恒流逻辑元件的第二端（即输出端）连接至 LED显示面板 10中对应列的 LED颗粒的 绿色灯管的阳极 （在该实施例中为 G基色阳极）， 恒流逻辑元件的第三端 （即控制端) 连接至第一 G显示控制端口； B基色恒流通道组可以包括一个或多个恒流逻辑元件， 这些恒流逻辑元件的第一端（在该实施例中为输入端）互联作为显示驱动电路 30的外 置引脚 VCCB， 连接至供电设备的电源端， 恒流逻辑元件的第二端 （即输出端） 连接 至 LED显示面板 10中对应列的 LED颗粒的蓝色灯管的阳极（在该实施例中为 B基色 阳极）， 恒流逻辑元件的第三端 （即控制端） 连接至第一 B显示控制端口。 图 6c所示的 LED颗粒为图 6b中虚线涵盖的部分 E1的局部放大图， 其中， 4脚 为公共阴极， 2/3/4分别为 B/G/R三基色发光二极管的阳极。 其中， 在该实施例中， 显示驱动电路 30的外置引脚 VCCR的供电电压可以低于 外置引脚 VCCG/VCCB的供电电压， 具体地， VCCR的供电电压可以是 1.6V， 此电压 值由绿、 蓝灯管的工作电压 （3.4至 3.6V) 减去红色灯管的工作电压 （1.8至 2V) 所 得，通过对 R/G/B基色发光二极管的供电电压进行差异化控制，从而降低 LED显示器 的功耗。 在实施例二中， LED显示面板 10 (也可以称为 LED单元） 包括 M行 *N列： LED 颗粒的矩阵排列， 其中， 单行 LED颗粒的阴极互联连接至第 i节点， 将各个节点连接 至显示驱动电路 30中开关电路 31中的一个 N-MOS管的漏极对应的输出引脚， 单列 LED颗粒中的相同基色的阳极互联至显示驱动电路 30的第一恒流通道组的恒流逻辑 元件的输入端， 即单列 LED颗粒中 R基色发光二极管的共同阳极互联连接至显示驱 动电路 30的第二恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 G基色发光二 极管的共同阳极互联连接至显示驱动电路 30的恒流通道组的恒流逻辑元件输入端；单 列 LED颗粒中 B基色发光二极管的共同阳极互联连接至显示驱动电路 30的第三恒流 通道组的恒流逻辑元件输入端。在显示驱动电路 30的控制下，供电控制电路 351通过 供电控制端口控制子开关电路 31 (该子开关电路 31可以为 N-MOS通道组）中的某一 个 N-MOS管处于开启状态， 为 LED显示面板 10上的对应行中的 LED颗粒的正极供 电， 驱动控制电路 353分别通过第一 R显示控制子端口 /第一 G显示控制子端口 /第一 B显示控制子端口将 R显示控制信号 /G显示控制信号 /B显示控制信号输出到第一恒流 通道组 /第二恒流通道组 /第三恒流通道组中的各个恒流逻辑元件，以分别控制三个恒流 通道组中的各个恒流逻辑元件处于导通的工作状态， 从而为对应列的 LED 颗粒的 R 基色阳极、 G基色阳极以及 B基色阳极提供电流通路，并实现 LED的有序显示。其中， 对应列的 LED颗粒的 R基色阳极、 G基色阳极以及 B基色阳极分别为对应列中 LED 颗粒的红色灯管、 绿色灯管或者蓝色灯管的阳极。 实施例三和四： 图 7a至图 7e是根据本发明实施例三的 LED显示器的结构示意图； 图 8a至图 8c 是根据本发明实施例四的 LED显示器的结构示意图。如图 7b和图 8b所示分别为两种 实施方式中图 7a中虚线涵盖的 F处和图 8a中虚线涵盖的 H处的局部放大图， 图 7c 中的 LED颗粒中的三基色发光二极管直接集成到该 LED颗粒上， 而图 8c中 LED颗 粒中的三基色发光二极管分别封装并集成到该 LED颗粒上， 除此之外， 两种实施方式 的电路连接关系可以相同。 其中， 图 7c中每个 LED颗粒的阳极有 3个引脚， 分别为 1， 2， 3， 对应至内部的 R/G/B基色发光二极管的阳极， 阴极有 3个引脚， 分别为 4， 5， 6， 分别对应至内部的 B/G/R基色发光二极管的阴极； 如图 8c所示， R/G/B基色发 光二极管的阳极为引脚 1， 阴极为引脚 2， R/G/B基色二极管并行焊接， 作为一个 LED 颗粒 （即全彩像素点）。 具体地， 如图 7e和图 8a所示， 场效应管也可以为 N-MOS管， LED显示面板 10 包括 M行 N列个 LED颗粒，每个 LED颗粒分别包括红色灯管、绿色灯管以及蓝色灯 管， 其中， 每行中的各个 LED颗粒中的红色灯管的阴极、 绿色灯管的阴极以及蓝色灯 管的阴极并联连接， 分别与开关电路 31中对应的一个 N-MOS管的漏极连接； 每列中 的各个 LED颗粒的红色灯管的阳极分别并联连接，分别与第一恒流通道组中对应的一 个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的绿色灯管的阳极分别并联连 接， 分别与第二恒流通道组中对应的一个恒流逻辑元件的第二端连接； 每列中的各个 LED颗粒的蓝色灯管的阳极分别并联连接， 分别与第三恒流通道组中对应的一个恒流 逻辑元件的第二端连接。 在实施例三和四中， LED显示面板 10中单行 LED颗粒的阳极互联连接至显示驱 动电路 30中开关电路 31中的一个 N-MOS管的漏极对应的输出引脚， 单行 LED颗粒 的阴极互联连接至第 i节点， 将各个节点连接至显示驱动电路 30中开关电路 31中的 一个 N-MOS管的漏极对应的输出引脚， 单列 LED颗粒中的相同基色的阳极互联至显 示驱动电路 30的第一恒流通道组的恒流逻辑元件的输入端， 即单列 LED颗粒中 R基 色发光二极管的共同阳极互联连接至显示驱动电路 30 的第二恒流通道组的恒流逻辑 元件输入端； 单列 LED颗粒中 G基色发光二极管的共同阳极互联连接至显示驱动电 路 30的恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 B基色发光二极管的共 同阳极互联连接至显示驱动电路 30的第三恒流通道组的恒流逻辑元件输入端。 基于实施例三和四中示出的技术方案， 也可以有第一种变形的实施方式： 在该实施方式中， 开关电路 31包括第一子开关电路和第二子开关电路，第一子开 关电路和第二子开关电路各包括一个或多个场效应管， 且第一子开关电路和第二子开 关电路中的每个场效应管的源极都分别与供电设备的电源端或接地端连接， 其中， 第 一子开关电路中的每个场效应管的漏极分别与 LED显示面板中对应行中各个 LED颗 粒中的红色灯管的阳极或阴极连接， 每个场效应管的栅极分别与供电控制端口中对应 的接线端子连接， 用于控制 LED显示面板的红色灯管的供电； 第二子开关电路中的每 个场效应管的漏极分别与 LED显示面板中对应行中各个 LED颗粒中的绿色灯管和蓝 色灯管的阳极或阴极连接， 每个场效应管的栅极分别与供电控制端口中对应的接线端 子连接， 用于控制 LED显示面板的绿色灯管和蓝色灯管的供电。 在该实施方式中， 驱动电路 33可以包括一个恒流通道组， 恒流通道组可以包括： 一个或多个恒流逻辑元件， 其中， 每个恒流逻辑元件的第一端分别与供电设备的电源 端或接地端连接;每个恒流逻辑元件的第二端分别与 LED显示面板 10中对应列的 LED 颗粒的阳极或阴极连接； 每个恒流逻辑元件的第三端分别与驱动控制端口中对应的接 线端子连接。 另外， 在该实施例中供电控制电路 351用于控制第一子开关电路中的一个场效应 管打开， 以对与第一子开关电路中的场效应管对应的 LED显示面板 10的行中的 LED 颗粒中的红色灯管供电； 供电控制电路 351还用于控制第二子开关电路中与第一子开 关电路中的一个场效应管相对应的场效应管打开， 以对与第一子开关电路中的场效应 管对应的 LED显示面板 10行中的 LED颗粒中的绿色灯管和蓝色灯管供电；驱动控制 电路 353用于控制恒流通道组中的各个恒流逻辑元件导通， 各个恒流逻辑元件导通之 后，分别为与恒流逻辑元件对应的 LED显示面板 10的列中的 LED颗粒提供电流通路， 以控制与场效应管对应的 LED显示面板 10的行中的 LED颗粒的有序显示。 通过将开关电路 31、 驱动电路 33和控制电路 35集成到显示驱动电路 30中， 使 得在原 LED显示面板 10面积不变的情况下， 可以放置更多的显示驱动电路 30， 从而 在面积一定的 LED显示器上， LED颗粒与显示驱动电路 30的数量比减小且提高了刷 新率。 该实施例中显示驱动电路 30的场效应管可以为 P-MOS管， LED显示面板 10可 以包括 M行 N列个 LED颗粒，每个 LED颗粒分别包括红色灯管、绿色灯管以及蓝色 灯管， 其中， 每行中第 i个 LED颗粒中的红色灯管的阳极并联连接于第 i节点， 每行 中的各个节点并联连接， 分别与第一子开关电路 31中对应的一个 P-MOS管的漏极连 接；每行中第 j个 LED颗粒中绿色灯管的阳极和蓝色灯管的阳极并联连接于第 j节点， 每行中的各个节点并联连接， 与第二子开关电路 31中对应的一个 P-MOS管的漏极连 接； 每列中的各个 LED颗粒的红色灯管的阴极分别并联连接， 分别与恒流通道组中对 应的一个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的绿色灯管的阴极分别 并联连接， 分别与恒流通道组中对应的一个恒流逻辑元件的第二端连接； 每列中的各 个 LED颗粒的蓝色灯管的阴极分别并联连接，分别与恒流通道组中对应的一个恒流逻 辑元件的第二端连接。 其中， l≤i≤N， l≤j≤N， i和 j均为自然数， 红色灯管、 绿色灯管 以及蓝色灯管可以分别是 R/G/B基色发光二极管。 在该实施方式中， 显示驱动电路 30集成了第一子开关电路和第二子开关电路，两 个子开关电路分别包括一个或多个 P-MOS管， 第一子开关电路的 P-MOS管的源极互 联可以作为显示驱动电路 30的外置引脚 VCCB，连接至供电设备的电源端的一个接线 端子， 栅极连接到供电控制端口的红色供电控制信号， 漏极连接于 LED显示面板 10 的对应行的 LED颗粒的红色灯管的阳极（即对应行的 LED颗粒的 R基色阳极）；第二 子开关电路的 P-MOS管的源极互联可以作为显示驱动电路 30的外置引脚 VCCA， 连 接至供电设备的电源端的一个接线端子， 栅极连接到供电控制端口的绿色和蓝色供电 控制信号，漏极连接于 LED显示面板 10的对应行的 LED颗粒的绿色灯管和蓝色灯管 的阳极 （即对应行的 LED颗粒的 G基色阳极和 B基色阳极）。 驱动电路 33可以与实施例一中示出的驱动电路相同， 该驱动电路 33可以包括一 组恒流通道组， 该恒流通道组中包括多个恒流逻辑元件 （也可以称为恒流逻辑电路）， 每个恒流逻辑元件的第二端（即输入端）分别作为显示驱动电路 30的输入引脚中的一 个， 所有恒流逻辑元件的第一端（即输出端） 内部互联， 连接到显示驱动电路 30的接 地端 （即 GND端）， 恒流逻辑元件的第三端 （即控制端） 与控制电路 35的驱动控制 端口连接， 用于接收驱动电路 33的恒流控制信号。 在该实施方式中， LED显示面板 10中的每行中第 i个 LED颗粒中的红色灯管的 阳极并联连接于第 i节点， 每行中的各个节点并联连接分别与第一子开关电路 31中对 应的一个 P-MOS管的漏极连接； 每行中第 j个 LED颗粒中绿色灯管的阳极和蓝色灯 管的阳极并联连接于第 j节点， 每行中的各个节点并联连接， 分别与第二子开关电路 31中对应的一个 P-MOS管的漏极连接； 单列 LED颗粒中的相同基色的阴极互联至显 示驱动电路 30的恒流通道组的恒流逻辑元件的输入端， 即单列 LED颗粒中红色灯管 (也即 R基色显示单元） 的共同阴极互联连接至显示驱动电路 30的恒流通道组的恒 流逻辑元件的输入端； 单列 LED颗粒中绿色灯管 （也即 G基色显示单元） 的共同阴 极互联连接至显示驱动电路 30的恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒 中蓝色灯管 （也即 B基色显示单元） 的共同阴极互联连接至显示驱动电路 30的恒流 通道组的恒流逻辑元件输入端。 在上述实施方式中， 第一子开关电路和第二子开关电路的供电电压可以不同，
VCCB供电电压优选为 1.6V， 该供电电压可以低于引脚 VCCA的供电电压， 此 1.6V 的电压值由绿、蓝发光二极管的典型工作电压（3.4-3.6V)减去红色发光二极管的典型 工作电压 （1.8-2V) 所得， 这样可以对 R/G/B基色发光二极管的供电电压进行差异化 控制， 从而降低 LED显示器的功耗。 在该实施方式中，显示驱动电路 30的供电控制电路 351通过供电控制端口分别控 制第一子开关电路和第二子开关电路中对应相同行的对应的 P-MOS管处于开启状态， 分别为 LED显示面板 10上的对应行中的 LED颗粒的 R基色发光二极管和 G/B基色 发光二极管正极供电， 驱动控制电路 353分别通过第一 R显示控制子端口 /第一 G显 示控制子端口 /第一 B显示控制子端口将 R显示控制信号 /G显示控制信号 /B显示控制 信号输出到第一恒流通道组 /第二恒流通道组 /第三恒流通道组中的各个恒流逻辑元件， 以分别控制三个恒流通道组中的各个恒流逻辑元件处于导通的工作状态， 从而为对应 列的 LED颗粒的 R基色阴极、 G基色阴极以及 B基色阴极提供电流通路，并实现 LED 的有序显示。 基于实施例三和四的第一种变形的实施方式示出的技术方案， 也可以有如下变形 方式：
LED显示面板 10还可以采用如下实施方式实现：场效应管可以为 P-MOS管， LED 显示面板 10可以包括 M行 N列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、 绿 色灯管以及蓝色灯管， 其中， 每行中的各个 LED颗粒中的红色灯管的阴极并联连接， 分别与第一子开关电路中对应的一个 P-MOS管的漏极连接； 每行中的各个 LED颗粒 中的绿色灯管的阳极和蓝色灯管的阳极并联连接， 分别与第二子开关电路中对应的一 个 P-MOS管的漏极连接； 每列中的各个 LED颗粒的红色灯管的阴极分别并联连接， 分别与恒流通道组中对应的一个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒 的绿色灯管的阴极分别并联连接， 分别与恒流通道组中对应的一个恒流逻辑元件的第 二端连接； 每列中的各个 LED颗粒的蓝色灯管的阴极分别并联连接， 分别与恒流通道 组中对应的一个恒流逻辑元件的第二端连接。 具体地， LED显示面板 10中的每行中 LED颗粒中的红色灯管的阳极并联连接于 第一子开关电路中对应的一个 P-MOS管的漏极； 每行中 LED颗粒中绿色灯管的阳极 和蓝色灯管的阳极并联连接于第二子开关电路中对应的一个 P-MOS管的漏极连接；单 列 LED颗粒中的相同基色的阴极互联至恒流通道组的恒流逻辑元件的输入端，即单列 LED颗粒中 R基色发光二极管的共同阴极互联连接至显示驱动电路 30的恒流通道组 的恒流逻辑元件的输入端； 单列 LED颗粒中 G基色发光二极管的共同阴极互联连接 至显示驱动电路 30的恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 B基色发 光二极管的共同阴极互联连接至显示驱动电路 30 的恒流通道组的恒流逻辑元件输入
基于实施例三和四的第一种变形的实施方式示出的技术方案， 也可以有如下两种 变形方式： 第一种： 场效应管可以为 N-MOS管， LED显示面板 10包括 M行 N列个 LED颗 粒， 每个 LED颗粒分别包括红色灯管、 绿色灯管以及蓝色灯管， 其中， 每行中的各个 LED颗粒中的红色灯管的阴极并联连接，分别与第一子开关电路中对应的一个 N-MOS 管的漏极连接；每行中的各个 LED颗粒中的绿色灯管的阴极和蓝色灯管的阴极并联连 接， 分别与第二子开关电路中对应的一个 N-MOS管的漏极连接； 每列中的各个 LED 颗粒的红色灯管的阳极分别并联连接， 分别与恒流通道组中对应的一个恒流逻辑元件 的第二端连接； 每列中的各个 LED颗粒的绿色灯管的阳极分别并联连接， 分别与恒流 通道组中对应的一个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的蓝色灯管 的阳极分别并联连接， 分别与恒流通道组中对应的一个恒流逻辑元件的第二端连接。 第二种： 场效应管为 N-MOS管， LED显示面板 10包括 M行 N列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、 绿色灯管以及蓝色灯管， 其中， 每行中第 i个 LED 颗粒中的红色灯管的阴极并联连接于第 i节点， 每行中的各个节点并联连接， 分别与 第一子开关电路 31中对应的一个 N-MOS管的漏极连接；每行中第 j个 LED颗粒中绿 色灯管的阴极和蓝色灯管的阴极并联连接于第 j节点， 每行中的各个节点并联连接， 与第二子开关电路 31中对应的一个 N-MOS管的漏极连接； 每列中的各个 LED颗粒 的红色灯管的阳极分别并联连接， 分别与恒流通道组中对应的一个恒流逻辑元件的第 二端连接； 每列中的各个 LED颗粒的绿色灯管的阳极分别并联连接， 分别与恒流通道 组中对应的一个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的蓝色灯管的阳 极分别并联连接， 分别与恒流通道组中对应的一个恒流逻辑元件的第二端连接。 该实施例中， 显示驱动电路 30集成了第一子开关电路和第二子开关电路，两个子 开关电路 31分别包括一个或多个 N-MOS管， 第一子开关电路的 N-MOS管的源极互 联可以作为显示驱动电路 30的外置引脚 GND， 连接至供电设备的电源端的一个接线 端子， 栅极连接到供电控制端口的红色供电控制信号， 漏极连接于 LED显示面板 10 的对应行的 LED颗粒的红色灯管的阳极（即对应行的 LED颗粒的 R基色阳极）；第二 子开关电路的 N-MOS管的源极互联可以作为显示驱动电路 30的外置引脚 GND， 连 接至供电设备的电源端的一个接线端子， 栅极连接到供电控制端口的绿色和蓝色供电 控制信号，漏极连接于 LED显示面板 10的对应行的 LED颗粒的绿色灯管和蓝色灯管 的阳极 （即对应行的 LED颗粒的 G基色阳极和 B基色阳极）。 驱动电路 33可以与实施例一中示出的驱动电路 33相同，该驱动电路 33可以包括 一组恒流通道组，该恒流通道组中包括多个恒流逻辑元件（也可以称为恒流逻辑电路）， 每个恒流逻辑元件的第二端（即输入端）分别作为显示驱动电路 30的输入引脚中的一 个， 所有恒流逻辑元件的第一端（即输出端）内部互联， 作为显示驱动电路 30的 VCC 端， 连接到供电设备的电源端， 恒流逻辑元件的第三端 （即控制端） 与控制电路 35 的驱动控制端口连接， 用于接收驱动电路 33的恒流控制信号。 具体地， 在该变形方式中的第一种实施方式中， 每行中第 i个 LED颗粒中的红色 灯管的阴极并联连接于第 i节点， 每行中的各个节点并联连接， 分别与第一子开关电 路中对应的一个 N-MOS管的漏极连接； 每行中第 j个 LED颗粒中绿色灯管的阴极和 蓝色灯管的阴极并联连接于第 j节点， 每行中的各个节点并联连接， 与第二子开关电 路中对应的一个 N-MOS管的漏极连接；单列 LED颗粒中 R基色发光二极管的共同阳 极互联连接至恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 G基色发光二极 管的共同阳极互联连接至恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 B基 色发光二极管的共同阳极互联连接至恒流通道组的恒流逻辑元件输入端。 第二种实施方式中，每行中的各个 LED颗粒中的红色灯管的阴极内部互联分别与 第一子开关电路中对应的一个 N-MOS管的漏极连接， 每行中的各个 LED颗粒中的绿 色和蓝色灯管的阴极互联分别与第二子开关电路中对应的一个 N-MOS管的漏极连接; 单列 LED颗粒中 R基色发光二极管的共同阳极互联连接至显示驱动电路 30的恒流通 道组的恒流逻辑元件输入端； 单列 LED颗粒中 G基色发光二极管的共同阳极互联连 接至恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 B基色发光二极管的共同 阳极互联连接至恒流通道组的恒流逻辑元件输入端。 实施例五和六： 具体地，显示驱动电路 30的开关电路 31包括第一子开关电路和第二子开关电路， 驱动电路 33包括第一恒流通道组、第二恒流通道组以及第三恒流通道组， 其中， 第一 子开关电路与第二子开关电路的结构可以与实施例一中的第一种实施方式中的相同， 并且第一恒流通道组， 可以包括一个或多个恒流逻辑元件， 其中， 每个恒流逻辑元件 的第一端分别与供电设备的电源端或接地端连接， 每个恒流逻辑元件的第三端分别与 驱动控制端口的第一 R显示控制子端口连接，每个恒流逻辑元件的第二端分别与 LED 显示面板 10中对应列中的各个 LED颗粒中的红色灯管的阳极或阴极连接， 用于控制 LED显示面板 10的红色灯管的显示； 第二恒流通道组， 包括一个或多个恒流逻辑元 件， 其中， 每个恒流逻辑元件的第一端分别与供电设备的电源端或接地端连接， 每个 恒流逻辑元件的第三端分别与驱动控制端口的第一 G显示控制子端口连接， 每个恒流 逻辑元件的第二端分别与 LED显示面板 10中对应列中的各个 LED颗粒中的绿色灯管 的阳极或阴极连接， 用于控制 LED显示面板 10的绿色灯管的显示； 第三恒流通道组， 包括一个或多个恒流逻辑元件， 其中， 每个恒流逻辑元件的第一端分别与供电设备的 电源端或接地端连接， 每个恒流逻辑元件的第三端分别与驱动控制端口的第一 B显示 控制子端口连接， 每个恒流逻辑元件的第二端分别与 LED显示面板 10中对应列中的 各个 LED颗粒中的蓝色灯管的阳极或阴极连接，用于控制 LED显示面板 10的蓝色灯 管的显示。 其中， 第一恒流通道组可以是 R基色恒流通道组， 第二恒流通道组可以是 G基色恒流通道组， 第三恒流通道组可以是 B基色恒流通道组。 具体地，控制电路 35中的供电控制电路 351用于控制第一子开关电路中的一个场 效应管打开， 以对与第一子开关电路中的场效应管对应的 LED显示面板 10的行中的 LED颗粒中的红色灯管供电； 供电控制电路 351还用于控制第二子开关电路中与第一 子开关电路中的每个场效应管相对应的场效应管打开， 以对与第一子开关电路中的场 效应管对应的 LED显示面板 10的行中的 LED颗粒中的绿色灯管和蓝色灯管供电；驱 动控制电路 353用于通过第一 R显示控制子端口控制第一恒流通道组中的各个恒流逻 辑元件导通， 各个恒流逻辑元件导通之后， 分别为与恒流逻辑元件对应的 LED显示面 板 10列中的 LED颗粒中的红色灯管提供电流通路， 以控制与场效应管对应的 LED显 示面板 10行中的 LED颗粒的红色灯管的显示； 驱动控制电路 353还用于通过第一 G 显示控制子端口控制第二恒流通道组中的各个恒流逻辑元件导通， 各个恒流逻辑元件 导通之后，分别为与恒流逻辑元件对应的 LED显示面板 10列中的 LED颗粒中的绿色 灯管提供电流通路， 以控制与场效应管对应的 LED显示面板 10行中的 LED颗粒的绿 色灯管的显示； 驱动控制电路 353还用于通过第一 B显示控制子端口控制第三恒流通 道组中的各个恒流逻辑元件导通， 各个恒流逻辑元件导通之后， 分别为与恒流逻辑元 件对应的 LED显示面板 10列中的 LED颗粒中的蓝色灯管提供电流通路， 以控制与场 效应管对应的 LED显示面板 10行中的 LED颗粒的蓝色灯管的显示。 其中， 上述实施例中的三组恒流通道组分别控制 LED显示面板 10上红色灯管、 绿色灯管以及蓝色灯管（可以为 R/G/B三基色发光二极管） 的恒流显示， 开关电路 31 中的第一子开关电路 31 和第二子开关电路 31 (两个子开关电路 31 可以分别为一组 P-MOS管组成的通道， 简称 P-MOS通道）， 分别用于控制 LED显示面板 10上 R/G/B 三基色二极管的供电， 并且显示驱动电路 30中的供电控制电路 351和驱动控制电路 353分别控制开关电路 31和驱动电路 33的工作状态。 相应的， 供电控制端口包括第一供电控制端口和第二供电控制端口， 其中， 第一 供电控制端口用于向第一子开关电路（即图 9中所示的 VCCB供电的 P-MOS通道组） 发送第一供电控制信号， 第二供电控制端口用于向第二子开关电路（即 VCCA供电的 P-MOS通道组）发送第二供电控制信号； 驱动控制端口包括第二 R/G/B显示控制子端 口分别向 R/G/B基色恒流通道组发送第二 R/G/B显示控制信号。 图 9a至图 9c是根据本发明的实施例七的 LED显示器的结构示意图， 图 10a至图 10e是根据本发明的实施例七的 LED显示器的结构示意图。 如图 9b和 10b所示所示 分别为两种实施方式中图 9a中虚线涵盖的 I处和图 10a中虚线涵盖的 J处的局部放大 图， 图 9c中的 LED颗粒中的三基色发光二极管直接集成到该 LED颗粒上， 而图 10c 中 LED颗粒中的三基色发光二极管分别封装并集成到该 LED颗粒上， 除此之外， 两 种实施方式的电路连接关系可以相同。其中， 图 9c和图 9b中每个 LED颗粒的阳极有 3个引脚， 分别为 1， 2， 3， 对应至内部的 R/G/B基色发光二极管的阳极， 阴极有 3 个引脚， 分别为 4， 5， 6， 分别对应至内部的 B/G/R基色发光二极管的阴极； 如图 10c 所示， R/G/B基色发光二极管的阳极为引脚 1， 阴极为引脚 2， R/G/B基色二极管并 行焊接， 作为一个 LED颗粒 （即全彩像素点）。 具体地，显示驱动 30集成了三组恒流通道组，分别控制 LED显示面板 10上 R/G/B 三基色二极管的恒流显示； 集成了两组 P-MOS 通道， 分别用于控制 LED 单元板上 R/G/B三基色二极管的供电； 集成了控制电路 35， 用于控制恒流通道组及 P-MOS通 道的协调工作。 在实施例五和六中， 如图 10d所示， 图 10a中的虚线覆盖的 K处的场效应管可以 为 P-MOS管，图 10e是示出了图 10d中的虚线覆盖的 K1处的 P-MOS管的结构， LED 显示面板 10包括 M行 N列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、 绿色灯 管以及蓝色灯管， 其中， 每行中的各个 LED颗粒中的红色灯管的阳极并联连接， 分别 与第一子开关电路中对应的一个 P-MOS管的漏极连接； 每行中的各个 LED颗粒中的 绿色灯管的阳极和蓝色灯管的阳极并联连接， 作为 LED显示面板 10的阳极的一个接 线端子， 与第二子开关电路中对应的一个 P-MOS管的漏极连接； 每列中的各个 LED 颗粒的红色灯管的阴极分别并联连接， 分别与第一恒流通道组中对应的一个恒流逻辑 元件的第二端连接； 每列中的各个 LED颗粒的绿色灯管的阴极分别并联连接， 分别与 第二恒流通道组中对应的一个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的 蓝色灯管的阴极分别并联连接， 分别与第三恒流通道组中对应的一个恒流逻辑元件的 第二端连接。 第一子开关电路包括一个或多个 P-MOS管， 这些 P-MOS管的源极互联至显示驱 动电路 30 (3024) 的外置引脚 VCCB， 栅极连接到第一供电控制端口， 漏极连接到了 LED显示面板 10的对应行的 LED颗粒的 R基色阳极 (在图 9a中为单行的 LED颗粒， 也可以不是单行的 LED 颗粒）； 第二子开关电路包括一个或多个 P-MOS 管， 这些 P-MOS管的源极互联至显示驱动电路 30 (3024)的外置引脚 VCCA， 栅极连接到第二 供电控制端口， 漏极连接到了 LED显示面板 10的对应行的 LED颗粒的 G和 B基色 阳极 （在图 9a中为单行的 LED颗粒， 也可以不是单行的 LED颗粒）。 另外， R基色恒流通道组可以包括一个或多个恒流逻辑元件， 这些恒流逻辑元件 的输入端连接至 LED显示面板 10对应列中 LED颗粒的 R基色阴极，恒流逻辑元件的 输出端互联至显示驱动电路 30的外置引脚 GND， 恒流逻辑电路的控制端连接至第一 R显示控制子端口； G基色恒流通道组可以包括一个或多个恒流逻辑元件， 这些恒流 逻辑元件的输入端连接至 LED显示面板 10对应列中 LED颗粒的 G基色阴极， 恒流 逻辑元件的输出端互联至显示驱动电路 30的外置引脚 GND， 恒流逻辑电路的控制端 连接至第一 G显示控制子端口； B基色恒流通道组可以包括一个或多个恒流逻辑元件， 这些恒流逻辑元件的输入端连接至 LED显示面板 10对应列中 LED颗粒的 B基色阴极， 恒流逻辑元件的输出端互联至显示驱动电路 30的外置引脚 GND， 恒流逻辑电路的控 制端连接至第一 B显示控制子端口。 在显示驱动电路 30的控制下，供电控制电路 351通过供电控制端口控制第一子开 关电路 31和第二子开关电路 31中对应相同行的对应的两个 P-MOS管处于开启状态， 分别为 LED显示面板 10上的对应行中的 LED颗粒的 R基色发光二极管和 G/B基色 发光二极管正极供电， 驱动控制电路 353分别通过第二 R显示控制子端口 /第二 G显 示控制子端口 /第二 B显示控制子端口将 R显示控制信号 /G显示控制信号 /B显示控制 信号输出到第一恒流通道组 /第二恒流通道组 /第三恒流通道组中的各个恒流逻辑元件， 以分别控制三个恒流通道组中的各个恒流逻辑元件处于导通的工作状态， 从而为对应 列的 LED颗粒的 R基色阴极、 G基色阴极以及 B基色阴极提供电流通路，并实现 LED 的有序显示。 在上述实施方式中， 第一子开关电路和第二子开关电路的供电电压可以不同， VCCB供电电压优选为 1.6V， 该供电电压可以低于引脚 VCCA的供电电压， 此 1.6V 的电压值由绿、蓝发光二极管的典型工作电压（3.4-3.6V)减去红色发光二极管的典型 工作电压 （1.8-2V) 所得， 这样可以对 R/G/B基色发光二极管的供电电压进行差异化 控制， 从而降低 LED显示器的功耗。 另外， 基于实施例五和六示出的实施方式， 还可以有如下变形：
LED显示器中的场效应管可以为 P-MOS管， LED显示面板 10可以包括 M行 N 列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、 绿色灯管以及蓝色灯管， 其中， 每行中第 i个 LED颗粒中的红色灯管的阳极并联连接于第 i节点， 每行中的各个节点 并联连接， 与第一子开关电路 31中对应的一个 P-MOS管的漏极连接； 每行中第 j个 LED颗粒中绿色灯管的阳极和蓝色灯管的阳极并联连接于第 j节点， 每行中的各个节 点并联连接， 分别与第二子开关电路 31中对应的一个 P-MOS管的漏极连接； 每列中 的各个 LED颗粒的红色灯管的阴极分别并联连接，分别与第一恒流通道组中对应的一 个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的绿色灯管的阴极分别并联连 接， 分别与第二恒流通道组中对应的一个恒流逻辑元件的第二端连接； 每列中的各个 LED颗粒的蓝色灯管的阴极分别并联连接， 分别与第三恒流通道组中对应的一个恒流 逻辑元件的第二端连接。 进一步地， 显示驱动电路 30的外置引脚 VCCB的供电电压低于外置引脚 VCCA 供电电压， 外置引脚 VCCB的供电电压优选为 1.6V， 此电压值由绿、蓝发光二极管的 工作电压 （3.4-3.6V) 减去红色发光二极管的典型工作电压 （1.8-2V) 所得， 通过对 R/G/B基色发光二极管的供电电压进行差异化控制，从而可以降低 LED显示器的功耗。 基于实施例五和六示出的实施方式， 还可以有如下两种变形： 场效应管可以为 N-MOS管， LED显示面板 10包括 M行 N列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、 绿色灯管以及蓝色灯管， 其中， 每行中第 i个 LED颗粒 中的红色灯管的阴极并联连接于第 i节点， 每行中的各个节点并联连接， 分别与第一 子开关电路 31中对应的一个 N-MOS管的漏极连接；每行中第 j个 LED颗粒中绿色灯 管的阴极和蓝色灯管的阴极并联连接于第 j节点， 每行中的各个节点并联连接， 与第 二子开关电路 31中对应的一个 N-MOS管的漏极连接； 每列中的各个 LED颗粒的红 色灯管的阳极分别并联连接， 分别与第一恒流通道组中对应的一个恒流逻辑元件的第 二端连接； 每列中的各个 LED颗粒的绿色灯管的阳极分别并联连接， 分别与第二恒流 通道组中对应的一个恒流逻辑元件的第二端连接；每列中的各个 LED颗粒的蓝色灯管 的阳极分别并联连接， 分别与第三恒流通道组中对应的一个恒流逻辑元件的第二端连 接。 具体地，在该实施例中，第一子开关电路包括一个或多个 N-MOS管，这些 N-M0S 管的源极互联至显示驱动电路 30的外置引脚 GND， 栅极连接到第一供电控制端口， 漏极连接到了 LED显示面板 10的对应行的 LED颗粒的 R基色阳极（在图 10a中为单 行的 LED 颗粒， 也可以不是单行的 LED 颗粒）； 第二子开关电路包括一个或多个 N-MOS管， 这些 N-MOS管的源极互联至显示驱动电路 30的外置引脚 GND， 栅极连 接到第二供电控制端口， 漏极连接到了 LED显示面板 10的对应行的 LED颗粒的 G 和 B基色阳极 （在图 10a中为单行的 LED颗粒， 也可以不是单行的 LED颗粒）。 另外， R基色恒流通道组可以包括一个或多个恒流逻辑元件， 这些恒流逻辑元件 的输入端连接至 LED显示面板 10对应列中 LED颗粒的 R基色阴极，恒流逻辑元件的 输出端互联至显示驱动电路 30的外置引脚 VCCR，恒流逻辑电路的控制端连接至第一 R显示控制子端口； G基色恒流通道组可以包括一个或多个恒流逻辑元件， 这些恒流 逻辑元件的输入端连接至 LED显示面板 10对应列中 LED颗粒的 G基色阴极， 恒流 逻辑元件的输出端互联至显示驱动电路 30的外置引脚 VCCG，恒流逻辑电路的控制端 连接至第一 G显示控制子端口； B基色恒流通道组可以包括一个或多个恒流逻辑元件， 这些恒流逻辑元件的输入端连接至 LED显示面板 10对应列中 LED颗粒的 B基色阴极， 恒流逻辑元件的输出端互联至显示驱动电路 30的外置引脚 VCCB，恒流逻辑电路的控 制端连接至第一 B显示控制子端口。 其中，外置引脚 VCCR的供电电压低于外置引脚 VCCG/VCCB供电电压，此电压 值优选为 1.6V， 该值由绿、 蓝发光二极管的典型工作电压 （3.4-3.6V) 减去红色发光 二极管的典型工作电压 （1.8-2V) 所得， 通过对 R/G/B基色发光二极管的供电电压进 行差异化控制， 从而降低 LED显示器的功耗。 具体地， 每行中第 i个 LED颗粒中的红色灯管的阴极并联连接于第 i节点， 每行 中的各个节点并联连接， 分别与第一子开关电路 31中对应的一个 N-MOS管的漏极连 接；每行中第 j个 LED颗粒中绿色灯管的阴极和蓝色灯管的阴极并联连接于第 j节点， 每行中的各个节点并联连接， 与第二子开关电路 31中对应的一个 N-MOS管的漏极连 接； 单列 LED颗粒中 R基色发光二极管的共同阳极互联连接至显示驱动电路 30的第 一恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 G基色发光二极管的共同阳 极互联连接至显示驱动电路 30的第二恒流通道组的恒流逻辑元件输入端； 单列 LED 颗粒中 B基色发光二极管的共同阳极互联连接至显示驱动电路 30的第三恒流通道组 的恒流逻辑元件输入端。 另外， 实施例八还可以通过如下方法实现， 场效应管可以为 N-MOS管， LED显 示面板 10包括 M行 N列个 LED颗粒， 每个 LED颗粒分别包括红色灯管、 绿色灯管 以及蓝色灯管， 其中， 每行中的各个 LED颗粒中的红色灯管的阴极并联连接， 分别与 第一子开关电路 31中对应的一个 N-MOS管的漏极连接； 每行中的各个 LED颗粒中 的绿色灯管的阴极和蓝色灯管的阴极并联连接，分别与第二子开关电路 31中对应的一 个 N-MOS管的漏极连接； 每列中的各个 LED颗粒的红色灯管的阳极分别并联连接， 分别与第一恒流通道组中对应的一个恒流逻辑元件的第二端连接； 每列中的各个 LED 颗粒的绿色灯管的阳极分别并联连接， 分别与第二恒流通道组中对应的一个恒流逻辑 元件的第二端连接； 每列中的各个 LED颗粒的蓝色灯管的阳极分别并联连接， 分别与 第三恒流通道组中对应的一个恒流逻辑元件的第二端连接。 具体地，每行中的各个 LED颗粒中的红色灯管的阴极内部互联分别与第一子开关 电路 31中对应的一个 N-MOS管的漏极连接， 每行中的各个 LED颗粒中的绿色和蓝 色灯管的阴极互联分别与第二子开关电路 31中对应的一个 N-MOS管的漏极连接； 单 列 LED颗粒中 R基色发光二极管的共同阳极互联连接至显示驱动电路 30的第一恒流 通道组的恒流逻辑元件输入端； 单列 LED颗粒中 G基色发光二极管的共同阳极互联 连接至显示驱动电路 30的第二恒流通道组的恒流逻辑元件输入端； 单列 LED颗粒中 B基色发光二极管的共同阳极互联连接至显示驱动电路 30的第三恒流通道组的恒流逻 辑元件输入端。 本发明的上述实施例中的 LED显示器中的 LED颗粒中包括红色灯管、 绿色灯管 以及蓝色灯管， 其中， 红色灯管、 绿色灯管以及蓝色灯管可以集成在 LED颗粒中； 也 可以红色灯管、 绿色灯管以及蓝色灯管分别独立封装后设置在 LED颗粒中。 在上述实施例一至六中， 图 6a、 7a、 8a中的场效应管可以分别为图 7c中所示的 N-MOS管， 图 5a、 9a、 10a中的场效应管可以分别为图 10c中所示的 P-MOS管。 图 11是根据本发明实施例的 LED控制系统的结构示意图。如图 11所示，该 LED 控制系统包括： 显示驱动电路 30， 显示驱动电路 30包括： 开关电路 31、 驱动电路 33 以及控制电路 35， 其中， 开关电路 31和驱动电路 33中之一的第一端连接至供电设备 的电源端， 另一个的第一端连接至供电设备的接地端； 开关电路 31和驱动电路 33中 之一的第二端与 LED显示面板 10的阳极连接， 另一个的第二端与 LED显示面板 10 的阴极连接， 其中， 开关电路 31用于控制对 LED显示面板 10的供电， 驱动电路 33 用于控制 LED显示面板 10的有序显示； 控制电路， 包括： 供电控制电路 351和驱动 控制电路 353， 其中， 供电控制电路 351， 通过供电控制端口与开关电路 31的第三端 连接， 用于控制开关电路 31的打开或闭合； 驱动控制电路 353， 通过驱动控制端口与 驱动电路 33的第三端连接， 用于控制驱动电路 33的导通或截止。 采用本发明的 LED控制系统， 该系统中的显示驱动电路 30包括开关电路 31、 驱 动电路 33以及控制电路 35，控制电路 35包括供电控制电路 351和驱动控制电路 353， 供电控制电路 351用于控制开关电路 31的打开或闭合，驱动控制电路 353用于控制驱 动电路 33的导通或截止， 然后通过开关电路 31的打开或闭合控制 LED显示面板 10 的供电， 和通过驱动电路 33的导通或截止控制 LED显示面板 10的显示， 从而实现 LED显示面板 10的有序显示。 通过本发明的 LED控制系统， 将开关电路 31、 驱动电 路 33和控制电路 35集成到显示驱动电路 30中，使得在原 LED显示面板 10面积不变 的情况下， 可以放置更多的显示驱动电路 30， 从而在面积一定的 LED显示器上， LED 颗粒与显示驱动电路 30的数量比减小， 实现了刷新率的提高， 并且 LED显示面板 10 中 M行 *N列 LED颗粒阵列与显示驱动电路 30的接接关系更清晰， 连接线路更少， 降低了 PCB的设计难度。 解决了现有技术中 LED显示器的控制电路 35 占用的 PCB 面积大、 刷新率低且功耗大的问题， 实现了 LED显示器的控制电路 35占用面板的面 积小、 设计简单且刷新率高的效果。 从以上的描述中， 可以看出， 本发明实现了如下技术效果： 通过本发明的 LED显 示器， 将驱动电路 33和控制电路 35集成到显示驱动电路 30中， 使得在原 LED显示 面板 10面积不变的情况下，可以放置更多的显示驱动电路 30，从而在面积一定的 LED 显示器上， LED颗粒与显示驱动电路 30的数量比减小， 实现了刷新率的提高， 并且 驱动电路 33包括第一恒流通道组 331、第二恒流通道组 333以及第三恒流通道组 335， 三个恒流通道组分别控制 LED显示面板 10中 M行 *N列 LED颗粒阵列中的 R/G/B基 色的有序显示， 并且对 LED显示面板 10中的 LED颗粒的红色灯管和蓝色 /绿色灯管 分别提供不同的工作电压， 可以降低 LED显示器的功耗。 解决了现有技术中 LED显 示器的控制电路 35占用的 PCB面积大且刷新率低的问题，实现了 LED显示器的控制 电路 35占用面板的面积小、 设计简单且刷新率高的效果。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本领域的技 术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内， 所作的 任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种 LED显示器， 其特征在于， 包括：
LED显示面板；
显示驱动电路， 包括： 驱动电路以及控制电路， 所述驱动电路包括第一恒 流通道组、 第二恒流通道组以及第三恒流通道组， 其中，
所述第一恒流通道组， 包括一个或多个恒流逻辑元件， 其中， 每个所述恒 流逻辑元件的第一端分别与第一供电设备的电源端连接， 每个所述恒流逻辑元 件的第三端分别与所述控制电路的驱动控制端口的第一 R显示控制子端口连 接，每个所述恒流逻辑元件的第二端分别与所述 LED显示面板中对应列中的各 个 LED颗粒中的红色灯管的阴极连接， 用于控制所述 LED显示面板的红色灯 管的显示；
所述第二恒流通道组， 包括一个或多个所述恒流逻辑元件， 其中， 每个所 述恒流逻辑元件的第一端分别与第二供电设备的电源端连接， 每个所述恒流逻 辑元件的第三端分别与所述控制电路的驱动控制端口的第一 G显示控制子端口 连接，每个所述恒流逻辑元件的第二端分别与所述 LED显示面板中对应列中的 各个所述 LED颗粒中的绿色灯管的阴极连接， 用于控制所述 LED显示面板的 绿色灯管的显示；
所述第三恒流通道组， 包括一个或多个所述恒流逻辑元件， 其中， 每个所 述恒流逻辑元件的第一端分别与第三供电设备的电源端连接， 每个所述恒流逻 辑元件的第三端分别与所述控制电路的驱动控制端口的第一 B显示控制子端口 连接，每个所述恒流逻辑元件的第二端分别与所述 LED显示面板中对应列中的 各个所述 LED颗粒中的蓝色灯管的阴极连接， 用于控制所述 LED显示面板的 蓝色灯管的显示；
所述控制电路， 包括： 驱动控制电路， 其中， 所述驱动控制电路， 通过驱 动控制端口与所述驱动电路的第三端连接， 用于控制所述驱动电路的导通或截 止；
其中， 所述驱动电路用于控制所述 LED显示面板的有序显示。
2. 根据权利要求 1所述的显示器， 其特征在于， 所述驱动控制电路用于通过所述第一 R显示控制子端口控制所述第一恒流 通道组中的各个所述恒流逻辑元件导通， 各个所述恒流逻辑元件导通， 分别为 与所述恒流逻辑元件对应的所述 LED显示面板列中的 LED颗粒中的红色灯管 提供电流通路， 以控制与所述场效应管对应的所述 LED显示面板行中的 LED 颗粒的所述红色灯管的显示；
所述驱动控制电路还用于通过所述第一 G显示控制子端口控制所述第二恒 流通道组中的各个所述恒流逻辑元件导通， 各个所述恒流逻辑元件导通， 分别 为与所述恒流逻辑元件对应的所述 LED显示面板列中的 LED颗粒中的绿色灯 管提供电流通路，以控制与所述场效应管对应的所述 LED显示面板行中的 LED 颗粒的所述绿色灯管的显示； 以及
所述驱动控制电路还用于通过所述第一 B显示控制子端口控制所述第三恒 流通道组中的各个所述恒流逻辑元件导通， 各个所述恒流逻辑元件导通， 分别 为与所述恒流逻辑元件对应的所述 LED显示面板列中的 LED颗粒中的蓝色灯 管提供电流通路，以控制与所述场效应管对应的所述 LED显示面板行中的 LED 颗粒的所述蓝色灯管的显示。
3. 根据权利要求 1所述的显示器， 其特征在于，
所述显示驱动电路还包括： 开关电路， 其中， 所述开关电路的第一端连接 至所述供电设备的接地端，所述开关电路的第二端与所述 LED显示面板的阳极 连接； 以及
所述控制电路还包括： 供电控制电路， 其中， 所述供电控制电路， 通过供 电控制端口与所述开关电路的第三端连接， 用于控制所述开关电路的打开或闭 合. 其中， 所述开关电路用于控制对所述 LED显示面板的供电。
4. 根据权利要求 3所述的显示器， 其特征在于， 所述开关电路包括一个子开关电 路， 所述子开关电路包括一个或多个场效应管， 其中，
每个所述场效应管的源极分别与所述供电设备的接地端连接； 每个所述场效应管的漏极分别与所述 LED 显示面板中对应行中的各个所 述 LED颗粒的阴极连接； 以及
每个所述场效应管的栅极分别与所述供电控制端口中的对应的接线端子连 接。
5. 根据权利要求 4所述的显示器， 其特征在于， 所述供电控制电路用于控制每个所述场效应管打开， 以对与所述场效应管 对应的所述 LED显示面板的行中的 LED颗粒供电。
6. 根据权利要求 4或 5所述的显示器， 其特征在于， 所述场效应管为 N-MOS管， 所述 LED显示面板包括 M行 N列个所述 LED颗粒， 每个所述 LED颗粒分别 包括所述红色灯管、 所述绿色灯管以及所述蓝色灯管， 其中，
每行中第 i个 LED颗粒中的所述红色灯管的阴极、所述绿色灯管的阴极以 及所述蓝色灯管的阴极并联连接于第 i节点， 每行中的各个节点并联连接， 分 别与所述开关电路中对应的一个所述 N-MOS管的漏极连接；
每列中的各个所述 LED颗粒的所述红色灯管的阳极分别并联连接，作为所 述 LED显示面板的阳极的一个接线端子，并分别与所述第一恒流通道组中对应 的一个所述恒流逻辑元件的第二端连接；
每列中的各个所述 LED颗粒的所述绿色灯管的阳极分别并联连接，作为所 述 LED显示面板的阳极的一个接线端子，并分别与所述第二恒流通道组中对应 的一个所述恒流逻辑元件的第二端连接； 以及
每列中的各个所述 LED颗粒的所述蓝色灯管的阳极分别并联连接，作为所 述 LED显示面板的阳极的一个接线端子，并分别与所述第三恒流通道组中对应 的一个所述恒流逻辑元件的第二端连接。
7. 根据权利要求 4或 5所述的显示器， 其特征在于， 所述场效应管为 N-MOS管， 所述 LED显示面板包括 M行 N列个所述 LED颗粒， 每个所述 LED颗粒分别 包括所述红色灯管、 所述绿色灯管以及所述蓝色灯管， 其中，
每行中的各个所述 LED颗粒中的所述红色灯管的阴极、所述绿色灯管的阴 极以及所述蓝色灯管的阴极并联连接， 并分别与所述开关电路中对应的一个所 述 N-MOS管的漏极连接；
每列中的各个所述 LED颗粒的所述红色灯管的阳极分别并联连接，并分别 与所述第一恒流通道组中对应的一个所述恒流逻辑元件的第二端连接；
每列中的各个所述 LED颗粒的所述绿色灯管的阳极分别并联连接，并分别 与所述第二恒流通道组中对应的一个所述恒流逻辑元件的第二端连接； 以及 每列中的各个所述 LED颗粒的所述蓝色灯管的阳极分别并联连接，并分别 与所述第三恒流通道组中对应的一个所述恒流逻辑元件的第二端连接。
8. 根据权利要求 3所述的显示器， 其特征在于， 所述开关电路包括第一子开关电 路和第二子开关电路， 其中，
所述第一子开关电路， 包括一个或多个场效应管， 每个所述场效应管的源 极分别与所述供电设备的接地端连接， 每个所述场效应管的漏极分别与所述 LED显示面板中对应行中各个所述 LED颗粒中的所述红色灯管的阴极连接， 每个所述场效应管的栅极分别与所述供电控制端口中对应的接线端子连接， 用 于控制所述 LED显示面板的所述红色灯管的供电； 以及
所述第二子开关电路， 包括一个或多个所述场效应管， 每个所述场效应管 的源极分别与所述供电设备的接地端连接， 每个所述场效应管的漏极分别与所 述 LED显示面板中对应行中各个所述 LED颗粒中的所述绿色灯管和所述蓝色 灯管的阴极连接， 每个所述场效应管的栅极分别与所述供电控制端口中对应的 接线端子连接，用于控制所述 LED显示面板的所述绿色灯管和所述蓝色灯管的 供电。
9. 根据权利要求 8所述的显示器， 其特征在于，
所述供电控制电路用于控制所述第一子开关电路中的一个所述场效应管打 开，以对与所述第一子开关电路中的所述场效应管对应的所述 LED显示面板的 行中的 LED颗粒中的所述红色灯管供电； 所述供电控制电路还用于控制所述第二子开关电路中与所述第一子开关电 路中的对应的所述场效应管打开， 以对与第一子开关电路中的所述场效应管对 应的所述 LED显示面板行中的 LED颗粒中的所述绿色灯管和所述蓝色灯管供 电；
所述驱动控制电路用于通过所述第二 R显示控制子端口控制所述第一恒流 通道组中的各个所述恒流逻辑元件导通， 各个所述恒流逻辑元件导通之后， 分 别为与所述恒流逻辑元件对应的所述 LED显示面板列中的 LED颗粒中的所述 红色灯管提供电流通路，以控制与所述场效应管对应的所述 LED显示面板行中 的 LED颗粒的所述红色灯管的显示；
所述驱动控制电路还用于通过所述第二 G显示控制子端口控制所述第二恒 流通道组中的各个所述恒流逻辑元件导通， 各个所述恒流逻辑元件导通之后， 分别为与所述恒流逻辑元件对应的所述 LED显示面板列中的 LED颗粒中的所 述绿色灯管提供电流通路，以控制与所述场效应管对应的所述 LED显示面板行 中的 LED颗粒的所述绿色灯管的显示； 以及 所述驱动控制电路还用于通过所述第二 B显示控制子端口控制所述第三恒 流通道组中的各个所述恒流逻辑元件导通， 各个所述恒流逻辑元件导通之后， 分别为与所述恒流逻辑元件对应的所述 LED显示面板列中的 LED颗粒中的所 述蓝色灯管提供电流通路，以控制与所述场效应管对应的所述 LED显示面板行 中的 LED颗粒的所述蓝色灯管的显示。
10. 根据权利要求 8或 9所述的显示器， 其特征在于， 所述场效应管为 N-MOS管， 所述 LED显示面板包括 M行 N列个所述 LED颗粒， 每个所述 LED颗粒分别 包括所述红色灯管、 所述绿色灯管以及所述蓝色灯管， 其中，
每行中第 i个 LED颗粒中的所述红色灯管的阴极并联连接于第 i节点， 每 行中的各个节点并联连接， 并分别与所述第一子开关电路中对应的一个所述 N-MOS管的漏极连接；
每行中第 j个 LED颗粒中所述绿色灯管的阴极和所述蓝色灯管的阴极并联 连接于第 j节点， 每行中的各个节点并联连接， 并分别与所述第二子开关电路 中对应的一个所述 N-MOS管的漏极连接；
每列中的各个所述 LED颗粒的所述红色灯管的阳极分别并联连接，并分别 与所述第一恒流通道组中对应的一个所述恒流逻辑元件的第二端连接；
每列中的各个所述 LED颗粒的所述绿色灯管的阳极分别并联连接，并分别 与所述第二恒流通道组中对应的一个所述恒流逻辑元件的第二端连接； 以及 每列中的各个所述 LED颗粒的所述蓝色灯管的阳极分别并联连接，并分别 与所述第三恒流通道组中对应的一个所述恒流逻辑元件的第二端连接。
11. 根据权利要求 8或 9所述的显示器， 其特征在于， 所述场效应管为 N-MOS管， 所述 LED显示面板包括 M行 N列个 LED颗粒， 每个所述 LED颗粒分别包括 所述红色灯管、 所述绿色灯管以及所述蓝色灯管， 其中，
每行中的各个所述 LED颗粒中的所述红色灯管的阴极并联连接，并分别与 所述第一子开关电路中对应的一个所述 N-MOS管的漏极连接；
每行中的各个所述 LED 颗粒中的所述绿色灯管的阴极和所述蓝色灯管的 阴极并联连接， 并分别与所述第二子开关电路中对应的一个所述 N-MOS管的 漏极连接；
每列中的各个所述 LED颗粒的所述红色灯管的阳极分别并联连接，并分别 与所述第一恒流通道组中对应的一个所述恒流逻辑元件的第二端连接； 每列中的各个所述 LED颗粒的所述绿色灯管的阳极分别并联连接，并分别 与所述第二恒流通道组中对应的一个所述恒流逻辑元件的第二端连接； 以及 每列中的各个所述 LED颗粒的所述蓝色灯管的阳极分别并联连接，并分别 与所述第三恒流通道组中对应的一个所述恒流逻辑元件的第二端连接。
12. 根据权利要求 1所述的显示器，其特征在于，所述 LED显示面板中的所述 LED 颗粒中包括所述红色灯管、 所述绿色灯管以及所述蓝色灯管， 其中，
所述红色灯管、 所述绿色灯管以及所述蓝色灯管集成在所述 LED颗粒中； 或者
所述红色灯管、 所述绿色灯管以及所述蓝色灯管分别独立封装后设置在所 述 LED颗粒中。
PCT/CN2013/076604 2012-11-29 2013-05-31 Led显示器 WO2014082433A1 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020157016588A KR20150088837A (ko) 2012-11-29 2013-05-31 Led 디스플레이
EP13858651.6A EP2927900A4 (en) 2012-11-29 2013-05-31 LED DISPLAY DEVICE
JP2015544316A JP2016505879A (ja) 2012-11-29 2013-05-31 Ｌｅｄディスプレイ
US14/648,659 US20150310800A1 (en) 2012-11-29 2013-05-31 LED Display
CA2893176A CA2893176A1 (en) 2012-11-29 2013-05-31 Led display

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210501884.XA CN103854596A (zh) 2012-11-29 2012-11-29 Led显示器
CN201210501884.X 2012-11-29

Publications (1)

Publication Number Publication Date
WO2014082433A1 true WO2014082433A1 (zh) 2014-06-05

Family

ID=50827138

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/076604 WO2014082433A1 (zh) 2012-11-29 2013-05-31 Led显示器

Country Status (7)

Country Link
US (1) US20150310800A1 (zh)
EP (1) EP2927900A4 (zh)
JP (1) JP2016505879A (zh)
KR (1) KR20150088837A (zh)
CN (1) CN103854596A (zh)
CA (1) CA2893176A1 (zh)
WO (1) WO2014082433A1 (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102223152B1 (ko) * 2014-09-16 2021-03-05 삼성디스플레이 주식회사 유기 발광 표시 장치
CN108320698A (zh) * 2018-03-21 2018-07-24 佛山市青松科技股份有限公司 一种led驱动显示电路
CN208029151U (zh) * 2018-04-02 2018-10-30 深圳市艾比森光电股份有限公司 一种led驱动电路
US11263963B2 (en) 2018-05-09 2022-03-01 Apple Inc. Local passive matrix display
CN109584789B (zh) * 2019-01-30 2020-08-25 上海艾为电子技术股份有限公司 一种led驱动电路和发光电路
WO2021226804A1 (zh) 2020-05-11 2021-11-18 深圳市艾比森光电股份有限公司 一种负电压双电压电源驱动的led显示屏
CN111508425A (zh) * 2020-05-28 2020-08-07 厦门强力巨彩光电科技有限公司 一种共阳极显示屏控制电路
US11756478B2 (en) * 2021-05-11 2023-09-12 Tcl China Star Optoelectronics Technology Co., Ltd. Driving circuit, display panel, and panel
CN114582252B (zh) * 2022-02-28 2023-11-24 深圳市思坦科技有限公司 一种显示模块、显示面板及显示器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101707031A (zh) * 2009-12-01 2010-05-12 北京利亚德电子科技有限公司 Led电视机显示面板装置
CN101840657A (zh) * 2009-03-20 2010-09-22 上海金陵时威科技发展股份有限公司 一种led电子显示屏系统
KR20120076966A (ko) * 2010-12-30 2012-07-10 엘지디스플레이 주식회사 발광다이오드 백라이트 유닛 및 그 구동방법
US20120229036A1 (en) * 2011-03-07 2012-09-13 Hitachi Displays, Ltd. Liquid crystal display device
CN203086778U (zh) * 2012-11-29 2013-07-24 利亚德光电股份有限公司 Led驱动电路及控制系统

Family Cites Families (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889150A (en) * 1974-07-30 1975-06-10 Burroughs Corp Gaseous discharge display panel with scanning anode base plate assembly including resistive masses
JPH06314079A (ja) * 1993-04-28 1994-11-08 Toyoda Gosei Co Ltd 発光ダイオード駆動回路
US5812105A (en) * 1996-06-10 1998-09-22 Cree Research, Inc. Led dot matrix drive method and apparatus
JPH09321341A (ja) * 1996-05-30 1997-12-12 Nichia Chem Ind Ltd 光半導体装置及びその製造方法
US6160354A (en) * 1999-07-22 2000-12-12 3Com Corporation LED matrix current control system
JP2002244619A (ja) * 2001-02-15 2002-08-30 Sony Corp Ｌｅｄ表示装置の駆動回路
US7088321B1 (en) * 2001-03-30 2006-08-08 Infocus Corporation Method and apparatus for driving LED light sources for a projection display
TW582005B (en) * 2001-05-29 2004-04-01 Semiconductor Energy Lab Pulse output circuit, shift register, and display device
EP1383103B1 (fr) * 2002-07-19 2012-03-21 St Microelectronics S.A. Adaption automatique de la tension d'alimentation d'un ecran electroluminescent en fonction de la luminance souhaitee
KR100832613B1 (ko) * 2003-05-07 2008-05-27 도시바 마쯔시따 디스플레이 테크놀로지 컴퍼니, 리미티드 Ｅｌ 표시 장치
JP4033149B2 (ja) * 2004-03-04 2008-01-16 セイコーエプソン株式会社 電気光学装置、その駆動回路及び駆動方法、並びに電子機器
JP4182930B2 (ja) * 2004-07-12 2008-11-19 ソニー株式会社 表示装置及びバックライト装置
JP2006119274A (ja) * 2004-10-20 2006-05-11 Nec Lighting Ltd Ｌｅｄ表示装置および表示制御方法
KR100748739B1 (ko) * 2005-01-28 2007-08-13 도시바 마쯔시따 디스플레이 테크놀로지 컴퍼니, 리미티드 Ｅｌ 표시 장치 및 해당 ｅｌ 표시 장치의 구동 방법
JP2007093870A (ja) * 2005-09-28 2007-04-12 Optrex Corp 有機ｅｌディスプレイ装置の駆動装置
US7638754B2 (en) * 2005-10-07 2009-12-29 Sharp Kabushiki Kaisha Backlight device, display apparatus including backlight device, method for driving backlight device, and method for adjusting backlight device
GB2433638B (en) * 2005-12-22 2011-06-29 Cambridge Display Tech Ltd Passive matrix display drivers
KR100732853B1 (ko) * 2006-02-28 2007-06-27 삼성에스디아이 주식회사 화소 및 이를 이용한 유기 발광 표시장치
US7649326B2 (en) * 2006-03-27 2010-01-19 Texas Instruments Incorporated Highly efficient series string LED driver with individual LED control
KR100769445B1 (ko) * 2006-06-05 2007-10-22 삼성에스디아이 주식회사 액정표시장치의 백라이트 구동 시스템
US8049685B2 (en) * 2006-11-09 2011-11-01 Global Oled Technology Llc Passive matrix thin-film electro-luminescent display
CN201159981Y (zh) * 2007-02-15 2008-12-03 北京巨数数字技术开发有限公司 扫描型led显示单元
JP4297169B2 (ja) * 2007-02-21 2009-07-15 ソニー株式会社 表示装置及びその駆動方法と電子機器
JP4720757B2 (ja) * 2007-02-23 2011-07-13 ソニー株式会社 光源装置および液晶表示装置
JP4803069B2 (ja) * 2007-02-23 2011-10-26 ソニー株式会社 光源装置および液晶表示装置
JP2008250093A (ja) * 2007-03-30 2008-10-16 Sony Corp 表示装置およびその駆動方法
US7714517B2 (en) * 2007-04-19 2010-05-11 Au Optronics Corporation LED driver with current sink control and applications of the same
JP4720782B2 (ja) * 2007-05-09 2011-07-13 ソニー株式会社 画像表示装置
JP4655079B2 (ja) * 2007-11-06 2011-03-23 ソニー株式会社 液晶表示装置、液晶表示モジュールおよび液晶表示装置の駆動方法
US9814109B2 (en) * 2007-11-19 2017-11-07 Atmel Corporation Apparatus and technique for modular electronic display control
JP2009276744A (ja) * 2008-02-13 2009-11-26 Toshiba Mobile Display Co Ltd Ｅｌ表示装置
US9276766B2 (en) * 2008-09-05 2016-03-01 Ketra, Inc. Display calibration systems and related methods
US8471496B2 (en) * 2008-09-05 2013-06-25 Ketra, Inc. LED calibration systems and related methods
US8456092B2 (en) * 2008-09-05 2013-06-04 Ketra, Inc. Broad spectrum light source calibration systems and related methods
US8521035B2 (en) * 2008-09-05 2013-08-27 Ketra, Inc. Systems and methods for visible light communication
US20110063214A1 (en) * 2008-09-05 2011-03-17 Knapp David J Display and optical pointer systems and related methods
US8773336B2 (en) * 2008-09-05 2014-07-08 Ketra, Inc. Illumination devices and related systems and methods
JP2010078802A (ja) * 2008-09-25 2010-04-08 Sony Corp 液晶表示装置
US9370075B2 (en) * 2008-12-09 2016-06-14 Ignis Innovation Inc. System and method for fast compensation programming of pixels in a display
CN102549647B (zh) * 2009-08-17 2014-12-17 珀因特泰克公司 能够控制恒定发光二极管的电流的发光二极管驱动电路
CN101826302B (zh) * 2010-06-07 2012-05-30 福建科维光电科技有限公司 一种led全彩屏可选择节能电路
CN101894504B (zh) * 2010-07-13 2012-07-04 利亚德光电股份有限公司 Led显示面板及显示器
JP2012129277A (ja) * 2010-12-14 2012-07-05 On Semiconductor Trading Ltd 電流駆動型発光素子の駆動回路
CN202033976U (zh) * 2011-04-28 2011-11-09 石家庄科航光电科技有限公司 一种高灰度高刷新全彩色显示屏
US8743027B2 (en) * 2011-08-30 2014-06-03 E Ink Holdings Inc. OLED driving circuit and method of the same used in display panel
US9288861B2 (en) * 2011-12-08 2016-03-15 Advanced Analogic Technologies Incorporated Serial lighting interface with embedded feedback
CN103854598B (zh) * 2012-11-29 2016-08-10 利亚德光电股份有限公司 Led显示器
CN203192368U (zh) * 2012-11-29 2013-09-11 利亚德光电股份有限公司 Led显示器
US9241377B2 (en) * 2013-05-20 2016-01-19 Shenzhen China Star Optoelectronics Technology Co., Ltd LED backlight driving circuit, LCD device, and method for driving the LED backlight driving circuit
US9524666B2 (en) * 2014-12-03 2016-12-20 Revolution Display, Llc OLED display modules for large-format OLED displays
KR102462398B1 (ko) * 2015-07-03 2022-11-03 삼성전자 주식회사 디스플레이장치, led 구동회로장치 및 그 제어방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101840657A (zh) * 2009-03-20 2010-09-22 上海金陵时威科技发展股份有限公司 一种led电子显示屏系统
CN101707031A (zh) * 2009-12-01 2010-05-12 北京利亚德电子科技有限公司 Led电视机显示面板装置
KR20120076966A (ko) * 2010-12-30 2012-07-10 엘지디스플레이 주식회사 발광다이오드 백라이트 유닛 및 그 구동방법
US20120229036A1 (en) * 2011-03-07 2012-09-13 Hitachi Displays, Ltd. Liquid crystal display device
CN203086778U (zh) * 2012-11-29 2013-07-24 利亚德光电股份有限公司 Led驱动电路及控制系统

Also Published As

Publication number Publication date
JP2016505879A (ja) 2016-02-25
EP2927900A4 (en) 2016-05-11
EP2927900A1 (en) 2015-10-07
US20150310800A1 (en) 2015-10-29
CN103854596A (zh) 2014-06-11
KR20150088837A (ko) 2015-08-03
CA2893176A1 (en) 2014-06-05

Similar Documents

Publication Publication Date Title
WO2014082433A1 (zh) Led显示器
WO2014082431A1 (zh) Led显示器及led控制系统
WO2014082435A1 (zh) Led显示器
WO2014082434A1 (zh) Led驱动电路及控制系统
JP5519490B2 (ja) シフトレジスタ及びレベルシフタを有するｌｅｄストリング駆動装置
JP4644315B2 (ja) 発光素子駆動装置、面状照明装置および液晶表示装置
CN111627383A (zh) 一种led驱动电路、灯板及显示面板
CN203192368U (zh) Led显示器
CN114299867A (zh) 一种显示面板及其驱动方法和显示装置
US11403994B1 (en) Light emitting assembly and light emitting device including the same
WO2019192099A1 (zh) 一种led显示屏和led显示系统
CN203192367U (zh) Led显示器
TWI831354B (zh) 微型發光二極體顯示裝置及其驅動方法
CN203192365U (zh) Led显示器及led控制系统
CN208029155U (zh) 一种三线控制rgbw多彩发光的驱动电路
WO2024152287A1 (zh) 驱动芯片及装置、配置方法、背光模组、显示设备
US20210041904A1 (en) Current source circuit
CN118658423A (zh) 像素结构、显示基板和显示面板
CN118675447A (zh) 一种全彩led显示屏驱动电路
CN115002960A (zh) 灯串控制装置及方法
TW202336723A (zh) 智能電源的驅動裝置及其拼接顯示系統

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13858651

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2893176

Country of ref document: CA

Ref document number: 2015544316

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 14648659

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2013858651

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 20157016588

Country of ref document: KR

Kind code of ref document: A