CN106601185A - LED large size display screen - Google Patents
LED large size display screen Download PDFInfo
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- CN106601185A CN106601185A CN201710022426.0A CN201710022426A CN106601185A CN 106601185 A CN106601185 A CN 106601185A CN 201710022426 A CN201710022426 A CN 201710022426A CN 106601185 A CN106601185 A CN 106601185A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
The invention discloses an LED large size display screen comprising a display screen substrate, a plurality of LED display units, and a control chip; the plurality of LED display units are arranged on the front side of the display screen substrate at equal intervals and in a rectangular array, and the ends of each line/row of LED display units are respectively provided with a data transfer chip; the control chip is respectively connected with each data transfer chip and used for forming total display data according to received signals, and can assign the data to each data transfer chip according to lines or rows, so the data transfer chips can transfer the received line/row display data to the corresponding plurality of LED display units arranged in rows/lines, thus displaying the data. Each LED display unit is integrated with a drive circuit, thus greatly optimizing and simplifying the external drive circuit of the LED display screen, and greatly reducing system cost of the large size LED display screen.
Description
Technical field
The present invention relates to LED display fields, more particularly to a kind of LED large scales display screen.
Background technology
Current LED colorful display screens have spread all over video ads and city publicity field, or even have the trend into family,
But current LED display manufacturing cost is very high, power consumption golf calorific value is big, is easily out of order, maintenance difficult.Usual one
Individual display engineering is substantially all in million grades of cost, and mainly its display driving system is excessively complicated.Hardware driving circuit device
The many costs of number of packages amount are very high, and software development difficulty is also of a relatively high to be caused.
The content of the invention
The purpose of the present invention is to overcome deficiency of the prior art, there is provided a kind of LED large scales display screen.
For achieving the above object, a kind of LED large scales display screen proposed by the present invention, includes display screen substrate, some
Light-emitting diode display part and control chip；
Some light-emitting diode display parts by spacing it is equal, it is rectangular array be arranged on the display screen substrate front, institute
State some light-emitting diode display parts row wise or column wise every a line or per string end on be respectively arranged with a data forwarding core
Piece；
The control chip is connected respectively with each data forwarding chip, for the signal generation for receiving always to be shown into number
According to, and being assigned on each data forwarding chip row wise or column wise, and shown received row/column by each data forwarding chip
Registration evidence is forwarded on corresponding often multiple light-emitting diode display parts of row or each column and is shown；
Each light-emitting diode display part includes substrate and drive circuit, and one is provided with the substrate front side
Red-light LED, a green light LED and a blue-ray LED；The drive circuit and the data in corresponding its place row or column
Forwarding chip connect, to receive the row/column video data that the data forwarding chip is forwarded in corresponding video data, and
Luminous driving is carried out to the red-light LED, green light LED and blue-ray LED according to the video data.
Preferably, the light-emitting diode display part also includes some pins, some pins include a power pins, one
Ground wire pin, one data+pin, one data-pin, one clock+pin, one clock-pin, a latch signal input pin,
One latch signal output pin；The drive circuit include be sequentially connected data sink, display data memory and
LED current controller, the data sink is used to receive the data+pin, clock+pin and latch signal and be input into draw
Video data, clock data and latch data that foot is input into；The display data memory is used to store the display number
According to and latch data；The LED current controller is used to be stored the display data memory according to the clock data
Video data export HONGGUANG control signal, Green light control signals and blue light control signals respectively to the red-light LED, green glow
LED and blue-ray LED carry out luminous driving.
Preferably, the data forwarding chip includes forwarding drive circuit, the opposite sides of the data forwarding chip
Be respectively arranged with it is described forwarding drive circuit be connected a ground wire pin, one data+pin, one data-pin, a clock+
Pin, one clock-pin, a latch signal input pin and a latch signal output pin, away from the light-emitting diode display part
Side be additionally provided with a power pins；The forwarding drive circuit includes data sink, the ranks display number being sequentially connected
According to memorizer, raw column data forwarding driver, raw column data transmitting controller, compensated clock signal amplifier.
In the multiple light-emitting diode display parts in row or column that each data forwarding chip is located, near the data
The latch signal output pin phase of the latch signal input pin of the light-emitting diode display part of forwarding chip and the data forwarding chip
Even, the latch signal input pin of the latch signal output pin of the light-emitting diode display part and another adjacent light-emitting diode display part
On；And other pins in the plurality of light-emitting diode display part are connected in parallel on respectively on the corresponding pin of the data forwarding chip.
Preferably, the control chip includes total drive circuit, the input side of the control chip be provided with it is described
Multiple HDMI input pins of total drive circuit connection, wire pin and power pins, outlet side is provided with and total drive
One ground wire pin of galvanic electricity road connection, one data+pin, one data-pin, one clock+pin, one clock-pin, a latch
Signal input pin and a latch signal output pin；Total drive circuit is included and is sequentially connected HDMI data receivers
Device, total display data memory, raw column data driver, raw column data controller and compensated clock signal amplifier；
The all of data forwarding chip adopts the connection side of the plurality of light-emitting diode display part and the data forwarding core
Formula is connected on the control chip 30.
Preferably, some pins also include reset pin, for being stored in the display data memory
Data be purged, and make whole display screen be in original state.
Preferably, the ground wire pin of the LED display chips and the substrate back cover the radiating of the drive circuit
Piece connects, and the fin is used to radiate drive circuit and grounding connection.
Preferably, total drive circuit also includes effect module, for it is determined that the HDMI data sinks institute
The HDMI data that receive produce total video data when legal；
The forwarding drive circuit also includes effect module, for it is determined that the row received by its data sink/
Row video data controls the raw column data transmitting controller and drives the raw column data to forward driver to described many when legal
Individual light-emitting diode display part is forwarded；
The drive circuit also includes effect module, for it is determined that the row/column received by its data sink shows
Registration according to it is legal when control the LED current controller to the red-light LED, green light LED and blue-ray LED output control believe
Number.
Preferably, the display screen substrate is flexible base board.
Preferably, the multiple light-emitting diode display parts and its corresponding data forwarding chip in the often capable or each column pass through
One strip pcb board is arranged on the display screen substrate, and the strip pcb board and display screen substrate adopt flexible board system
Into.
Technical solution of the present invention has drive circuit by integrally disposed on each light-emitting diode display part, and some LED are being shown
Show device by spacing it is equal, it is rectangular array be arranged on display screen substrate when, often row or each column multiple light-emitting diode display part structures
Into a display unit, multirow display unit constitutes a LED display, one end connection one of the display unit formed per a line
Data forwarding chip, multiple data forwarding chips are coupled together by a bus, and are connected to the control core of whole LED display
On piece, to realize obtaining the row video data of every row from the control chip, finally the forwarding of row video data is assigned to into the row
Multiple light-emitting diode display parts on shown, realize that each light-emitting diode display part obtains each self-corresponding video data, produce whole
The collaboration display effect of individual LED display, the external drive circuit for greatly having optimized LED display simple, so as to reduce
The system cost of large scale LED display.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
Fig. 1 is the structural representation of LED large scales display screen of the present invention；
Fig. 2 a are the front schematic view of light-emitting diode display part of the present invention；
Fig. 2 b are the schematic rear view of light-emitting diode display part of the present invention；
Fig. 3 is the theory diagram of drive circuit in light-emitting diode display part of the present invention；
Fig. 4 is the display data transmissions sequential chart of light-emitting diode display part of the present invention；
Fig. 5 is the theory diagram of forwarding drive circuit in data forwarding chip of the present invention；
Fig. 6 be in control chip of the present invention total drive circuit away from block diagram.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention, based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " " axial direction ", " circumference ", " radial direction " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicates or imply that the device or element of indication must
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；It can be machine
Tool connects, or electrically connects；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two units
Connection inside part.For the ordinary skill in the art, can as the case may be understand above-mentioned term at this
Concrete meaning in bright.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
The first and second feature directly contacts can be included, it is also possible to be not directly contact but by it including the first and second features
Between other characterisation contact.And, fisrt feature second feature " on ", " top " and " above " include that first is special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Describe the LED large scale display screens of the embodiment of the present invention in detail with reference to the accompanying drawings.
As shown in Figures 1 to 6, LED large scale display screens according to embodiments of the present invention, if include display screen substrate,
Dry light-emitting diode display part 10, data forwarding chip 20 and control chip 30.
Some light-emitting diode display parts 10 by spacing it is equal, it is rectangular array be arranged on the display screen substrate front,
Some light-emitting diode display parts 10 row wise or column wise every a line or per string end on be respectively arranged with a data forwarding
Chip 20.
The control chip 30 is connected respectively with each data forwarding chip 20, for the signal generation for receiving always to be shown
Data, and being assigned on each data forwarding chip 20 row wise or column wise, and will be received by each data forwarding chip 20
Row/column video data is forwarded on corresponding often multiple light-emitting diode display parts 10 of row or each column and is shown.
Each light-emitting diode display part 10 includes substrate 11 and drive circuit 12, and the substrate 11 sets on front
It is equipped with a red-light LED, a green light LED and a blue-ray LED；The drive circuit 12 with corresponding its place row or column
The data forwarding chip 20 connect, to receive the row/column video data that the data forwarding chip 20 is forwarded in it is right
The video data answered, and luminous driving is carried out to the red-light LED, green light LED and blue-ray LED according to the video data.
LED large scale display screens according to embodiments of the present invention, have by integrally disposed on each light-emitting diode display part 10
Drive circuit 12, by some light-emitting diode display parts 10 by spacing it is equal, it is rectangular array be arranged on display screen substrate when, often
Multiple light-emitting diode display parts 10 of row or each column constitute a display unit, and to illustrate by behavior example, multirow shows the present invention
Unit constitutes a LED display, and the one end for the display unit formed per a line connects a data forwarding chip 20, multiple data
Forwarding chip 20 is coupled together by a bus, and is connected on the control chip 30 of whole LED display, to realize from the control
Often capable row video data is obtained on coremaking piece 30, the forwarding of row video data is finally assigned to multiple light-emitting diode displays of the row
Shown on part 10, realized that each light-emitting diode display part 10 (i.e. single pixel unit) obtains each self-corresponding video data, produced
The collaboration display effect of the whole LED display of life；Thus, structure of the present invention has greatly optimized simply LED showing
The external drive circuit of screen, so as to reduce the system cost of large scale LED display.
Wherein, as shown in Fig. 2 a, Fig. 2 b and shown in Fig. 3, the light-emitting diode display part 10 also includes some pins, institute
State some pins including a power pins 5, a ground wire pin 9, one data+pin 1, one data-pin 2, one clock+pin 3,
One clock-pin 4, a latch signal input pin 6, a latch signal output pin 7；The drive circuit 12 is included successively
The data sink 121 of connection, display data memory 122 and LED current controller 123, the data sink 121 is used
In the video data, the clock data that receive the data+pin 1, clock+pin 3 and latch signal input pin 6 are input into
And latch data；The display data memory 122 is used to store the video data and latch data；The LED current
The video data that controller 123 is used to be stored the display data memory according to the clock data exports respectively HONGGUANG
Control signal, Green light control signals and blue light control signals carry out luminous drive to the red-light LED, green light LED and blue-ray LED
It is dynamic.
As shown in figure 5, the data forwarding chip 20 includes forwarding drive circuit 21, the data forwarding chip 20
Opposite sides is respectively arranged with a ground wire pin, one data+pin, the data-draw being connected with the forwarding drive circuit 21
Foot, one clock+pin, one clock-pin, a latch signal input pin and a latch signal output pin, away from described
The side of light-emitting diode display part 10 is additionally provided with a power pins；The forwarding drive circuit 21 includes the data being sequentially connected and connects
Receive device 211, ranks display data memory 212, raw column data forwarding driver 213, raw column data transmitting controller 214, when
Clock signal compensation amplifier 215.
In the multiple light-emitting diode display parts 10 in row or column that each data forwarding chip 20 is located, near described
The latch signal input pin 6 of the light-emitting diode display part of data forwarding chip 20 is defeated with the latch signal of the data forwarding chip 20
Go out pin to be connected, the latch signal output pin 7 of the light-emitting diode display part is believed with the latch of another adjacent light-emitting diode display part
Number input pin 6 is connected, and by that analogy, the latch signal output farthest away from the light-emitting diode display part of the data forwarding chip 20 is drawn
Foot 7 is connected with the latch signal input pin of the data forwarding chip 20；And other in the plurality of light-emitting diode display part 10 draw
Foot is connected in parallel on respectively on the corresponding pin in the left side of data forwarding chip 20.
It should be noted that being by phase between adjacent two light-emitting diode displays part and adjacent two data forwardings chip 20
Connect with the latch line of transfer mode, to reduce bus number.
As shown in figure 4, for the display data transmissions sequential chart of light-emitting diode display part 10 of the present invention, communicating, one group of data is complete
One group of reply data can be produced into rear reception die terminals to be responded, received with telling that transmission die terminals receive at present die terminals
The situation and current operating state of data.
As shown in fig. 6, the control chip 30 includes total drive circuit 31, the input side of the control chip 30 is arranged
Have be connected with total drive circuit 31 multiple HDMI input pins, wire pin and power pins, outlet side is provided with
A ground wire pin, one data+pin, one data-pin, one clock+pin, a period of time being connected with total drive circuit 31
Clock-pin, a latch signal input pin and a latch signal output pin；Total drive circuit 31 is included and connected successively
Connect HDMI data sinks 311, total display data memory 312, raw column data driver 313, raw column data controller 314 with
And compensated clock signal amplifier 315；All of data forwarding chip 20 is turned using the plurality of light-emitting diode display part 10 with data
Send out the mode connected between chip to be connected on the control chip 30；Multiple pins on i.e. all right sides of data forwarding chip 20
It is connected on the corresponding pin of the outlet side of control chip 30 in series-parallel mode in Fig. 1.
Further, it is convenience when improving actually used, some pins of the light-emitting diode display part 10 also include
Reset pin 8, for being purged to the data stored in the display data memory 122, and makes at whole display screen
In original state.Corresponding, the opposite sides of data forwarding chip 20 is respectively arranged with and resets into pin and the pin that resets, control
The outlet side of coremaking piece 30 is also correspondingly arranged on and goes out pin with the reset that is connected into pin of resetting of data forwarding chip 20.And institute
The fin 13 that the ground wire pin for stating LED display chips covers the drive circuit 12 with the back side of the substrate 11 is connected, described
Fin 13 is used to radiate drive circuit 12 and grounding connection.
Further, as shown in fig. 6, total drive circuit 31 also includes effect module 316, for it is determined that institute
State the HDMI data received by HDMI data sinks 311 it is legal when produce total video data.
As shown in figure 5, the forwarding drive circuit 21 also includes effect module 216, for it is determined that its data receiver
Row/column video data received by device 211 controls the raw column data transmitting controller 214 and drives the ranks number when legal
Forwarded to the plurality of light-emitting diode display part 10 according to forwarding driver 213.
As shown in figure 3, the drive circuit 12 also includes effect module 124, for it is determined that its data sink 121
Received row/column video data controls the LED current controller to the red-light LED, green light LED and indigo plant when legal
Light LED output control signals.
As presently preferred embodiments of the present invention, when the display screen substrate is arranged to into flexible base board, can easily realize
Large-sized flexible LED display screen.
Further, the multiple light-emitting diode displays in order to the production of the convenient present invention is installed, on the often row or each column
Part 10 and its corresponding data forwarding chip 20 are arranged on the display screen substrate by a strip pcb board, and the bar
Shape pcb board and display screen substrate are made using flexible board.So, strip pcb board can be made into longer length, and in strip
The installation light-emitting diode display part 10 being spaced on pcb board, when LED display is made, can be according to LED display size come right
Should intercept the length of strip pcb board, then by a plurality of length identical strip pcb board it is parallel on display screen substrate, letter
Production stage is changed, has substantially increased the efficiency of production, and maintenance has been conveniently replaced in the later stage.
Further, it is to improve the convenience installed, the light-emitting diode display part 10 is apart from the strip pcb board width
The edge in direction is equal to the half of the adjacent spacing distance of two light-emitting diode displays part 10.So, strip pcb board is being arranged on into display
When on panel substrate, you can quickly by some strip pcb boards, mutually closely laminating is installed, and the LED display after installing
Upper all light-emitting diode display parts 10 are according to spacing is equal, rectangular array form arrangement.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
The preferred embodiments of the present invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every at this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/use indirectly
It is included in the scope of patent protection of the present invention in other related technical fields.
Claims (9)
1. a kind of LED large scales display screen, it is characterised in that include display screen substrate, some light-emitting diode display parts and control
Chip；
Some light-emitting diode display parts by spacing it is equal, rectangular array be arranged on the display screen substrate front, if described
Dry light-emitting diode display part row wise or column wise every a line or per string end on be respectively arranged with a data forwarding chip；
The control chip is connected respectively with each data forwarding chip, for by the total video data of the signal generation for receiving, and
Being assigned on each data forwarding chip row wise or column wise, and received row/column is shown into number by each data forwarding chip
Shown according to being forwarded on corresponding often multiple light-emitting diode display parts of row or each column；
Each light-emitting diode display part includes substrate and drive circuit, and a HONGGUANG is provided with the substrate front side
LED, a green light LED and a blue-ray LED；The drive circuit and the data forwarding in corresponding its place row or column
Chip connect, to receive the row/column video data that the data forwarding chip is forwarded in corresponding video data, and according to
The video data carries out luminous driving to the red-light LED, green light LED and blue-ray LED.
2. LED large scales display screen according to claim 1, it is characterised in that if the light-emitting diode display part is also included
Dry pin, some pins include a power pins, a ground wire pin, one data+pin, one data-pin, a clock+
Pin, one clock-pin, a latch signal input pin, a latch signal output pin；The drive circuit is included successively
The data sink of connection, display data memory and LED current controller, the data sink is used to receive the number
According to+pin, clock+pin and latch signal the input pin video data, clock data and the latch data that are input into；Institute
Display data memory is stated for storing the video data and latch data；The LED current controller is used for according to described
The video data that clock data is stored the display data memory exports respectively HONGGUANG control signal, Green light control signals
And blue light control signals carry out luminous driving to the red-light LED, green light LED and blue-ray LED.
3. LED large scales display screen according to claim 2, it is characterised in that the data forwarding chip is included and turned
Drive circuit is sent out, the opposite sides of the data forwarding chip is respectively arranged with the ground wire being connected with the forwarding drive circuit
Pin, one data+pin, one data-pin, one clock+pin, one clock-pin, a latch signal input pin and
Latch signal output pin, away from the side of the light-emitting diode display part power pins are additionally provided with；The forwarding drive circuit bag
Include data sink, ranks display data memory, raw column data forwarding driver, the raw column data forwarding control being sequentially connected
Device processed, compensated clock signal amplifier.
In the multiple light-emitting diode display parts in row or column that each data forwarding chip is located, near the data forwarding
The latch signal input pin of the light-emitting diode display part of chip is connected with the latch signal output pin of the data forwarding chip,
The latch signal output pin of the light-emitting diode display part with the latch signal input pin of another adjacent light-emitting diode display part；
And other pins in the plurality of light-emitting diode display part are connected in parallel on respectively on the corresponding pin of the data forwarding chip.
4. LED large scales display screen according to claim 3, it is characterised in that the control chip includes total driving
Circuit, the input side of the control chip is provided with multiple HDMI input pins for being connected with total drive circuit, ground wire and draws
Foot and power pins, outlet side is provided with a ground wire pin, one data+pin, the number being connected with total drive circuit
According to-pin, one clock+pin, one clock-pin, a latch signal input pin and a latch signal output pin；It is described
Total drive circuit is included and is sequentially connected HDMI data sinks, total display data memory, raw column data driver, ranks number
According to controller and compensated clock signal amplifier；
The all of data forwarding chip is connected using the plurality of light-emitting diode display part with the connected mode of the data forwarding core
It is connected on the control chip 30.
5. LED large scales display screen according to claim 4, it is characterised in that some pins also include reset
Pin, for being purged to the data stored in the display data memory, and makes whole display screen be in initial shape
State.
6. LED large scales display screen according to claim 4, it is characterised in that the ground wire pin of the LED display chips
The fin for covering the drive circuit with the substrate back be connected, the fin for drive circuit is radiated with
And grounding connection.
7. LED large scales display screen according to claim 4, it is characterised in that total drive circuit also includes effective
Module is tested, for it is determined that the HDMI data received by the HDMI data sinks produce total display number when legal
According to；
The forwarding drive circuit also includes effect module, for it is determined that the row/column received by its data sink shows
Registration according to it is legal when control the raw column data transmitting controller and drive the raw column data to forward driver to the plurality of LED
Display device is forwarded；
The drive circuit also includes effect module, for it is determined that the row/column received by its data sink shows number
According to it is legal when control the LED current controller to the red-light LED, green light LED and blue-ray LED output control signal.
8. LED large scales display screen as claimed in claim 1, it is characterised in that the display screen substrate is flexible base board.
9. LED large scales display screen as claimed in claim 1, it is characterised in that the multiple LED on the often row or each column show
Show that device and its corresponding data forwarding chip are arranged on the display screen substrate by a strip pcb board, and the bar
Shape pcb board and display screen substrate are made using flexible board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710022426.0A CN106601185B (en) | 2017-01-12 | 2017-01-12 | LED large-size display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710022426.0A CN106601185B (en) | 2017-01-12 | 2017-01-12 | LED large-size display screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106601185A true CN106601185A (en) | 2017-04-26 |
| CN106601185B CN106601185B (en) | 2023-08-11 |
Family
ID=58584785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710022426.0A Active CN106601185B (en) | 2017-01-12 | 2017-01-12 | LED large-size display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106601185B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN106601185B (en) | 2023-08-11 |
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