CN104361865B - A kind of LED mosaic screens driving structure - Google Patents
A kind of LED mosaic screens driving structure Download PDFInfo
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- CN104361865B CN104361865B CN201410723156.2A CN201410723156A CN104361865B CN 104361865 B CN104361865 B CN 104361865B CN 201410723156 A CN201410723156 A CN 201410723156A CN 104361865 B CN104361865 B CN 104361865B
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- driving chip
- passage channel
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Abstract
The embodiment of the invention discloses a kind of LED mosaic screens driving structure, a multichannel driving chip is realized applied to multiple display units, solve quantity of the quantity well below thousands of passage channel that driving chip possesses by passage channel used in each display module of existing LED mosaic screens, therefore, the technical problem made full use of can not be obtained by causing all passages of driving chip.The embodiment of the present invention includes：It is made up of the splicing of several display units, at least two display units are connected with a driving chip；The passage channel quantity of driving chip is averagely allocated to display unit.
Description
Technical field
The present invention relates to LED technology field, more particularly to a kind of LED mosaic screens driving structure.
Background technology
With the high speed development of science and technology, the application of LED display is more and more deep, and usual LED display is by LED particle
It is mounted in PCB substrate, is driven by LED drive chip, yet with the passage channel of a LED drive chip
Quantity can only reach 16 passage channel, therefore, for such as LED display module resolution ratio be commonly 120 ×
When 120, required passage channel quantity at least 360, it is therefore desirable to which the quantity of the LED drive chip of configuration will be very
It is many, at the same time, during for COG (chip on glass, chip is directly bound on glass) technology combination LED screen, change sentence
Talk about, be to bind LED drive chip on the glass substrate, this binds LED drive chip framework class on the glass substrate
Like the framework such as AMOLED, i.e., luminous to drive using TFT (thin film transistor (TFT)) on glass, therefore, COG technology is applied
, it is necessary to which the framework for integrating AMOLED is realized in LED screen.
It is existing at present to be bundled in driving chip on glass and be normally based on the driving core developed under TFT LCD basis
Piece, and the driving chip passage channel quantity can reach it is thousands of up to a hundred, the resolution ratio of such as display screen for 1366 ×
768, then the passage channel of required driving chip quantity should be 1366 × 3=4098 passage channel, then
At least three driving chips for possessing thousands of passage channel are needed to be driven resolution ratio for 1366 × 768 display screen,
Quantity based on passage channel used in each display module of LED mosaic screens is possessed well below driving chip
Thousands of passage channel quantity, therefore, abundant profit can be obtained by causing all passages of not driving chip
With, so whether the utilization for multichannel channel can meet and make full use of the research for being presently the most concern, therefore,
The purpose of the present invention makes full use of and proposed to solve the multichannel channel of driving chip.
The content of the invention
The embodiments of the invention provide a kind of LED mosaic screens driving structure, a multichannel driving chip application is realized
In multiple display units, because the quantity of passage channel used in each display module of existing LED mosaic screens is remote
The thousands of passage channel possessed far below driving chip quantity, therefore, cause all passages of driving chip without
Method obtains the technical problem made full use of.
A kind of LED mosaic screens driving structure provided in an embodiment of the present invention, is made up of, at least the splicing of several display units
Two display units are connected with a driving chip；
The passage channel quantity of the driving chip averagely corresponds to and distributes to the connected display unit.
Preferably,
The driving chip is LCD driving chips.
Preferably,
The LCD driving chips are source driving chip.
Preferably,
Voltage follower is also associated between the input of the display unit and the driving chip.
Preferably,
The driving chip is attached with the display unit by FPC.
Preferably,
The FPC is connected with the PCB substrate of the display unit bottom surface.
Preferably,
The FPC is connected with the PCB substrate with binding mode.
Preferably,
The FPC is connected with the PCB substrate in board to board connector mode.
Preferably,
The display unit is 4.
Preferably,
Each passage channel output ends of the input and the driving chip are connected with least one voltage with coupling
Device.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
A kind of LED mosaic screens driving structure provided in an embodiment of the present invention, wherein, including：Spelled by several display units
Composition is connect, at least two display units are connected with a driving chip；The passage channel quantity of driving chip is averagely corresponded to
Distribute to connected display unit.In the present embodiment, by using the multichannel characteristic of a driving chip, spelled with LED
At least two display units connect in multiple display units of screen are connected, and by multiple passages of driving chip averagely correspond to point
The display unit of dispensing driving chip connection, just realizes a driving chip for possessing thousands of passage channel up to a hundred
Multiple LED display units are driven, are solved due to passage used in each display module of existing LED mosaic screens
Therefore channel quantity, cause driving core well below the quantity for thousands of passage channel that driving chip possesses
All passages of piece can not obtain the technical problem made full use of.
Brief description of the drawings
In order to illustrate more clearly about 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, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of structural representation of LED mosaic screens driving structure provided in an embodiment of the present invention；
Fig. 2 is a kind of positive structure diagram of LED mosaic screens driving structure provided in an embodiment of the present invention；
Fig. 3 is that a kind of back of the body of LED mosaic screens driving structure provided in an embodiment of the present invention regards structural representation.
Embodiment
The embodiments of the invention provide a kind of LED mosaic screens driving structure, a multichannel driving chip application is realized
In multiple display units, because the quantity of passage channel used in each display module of existing LED mosaic screens is remote
The thousands of passage channel possessed far below driving chip quantity, therefore, cause all passages of driving chip without
Method obtains the technical problem made full use of.
Voltage follower, which is called, does unity gain buffer (Unity-Gain Buffer), and it is exactly that noninvert is put in fact
The incarnation of big device, simply by feedback resistance vanishing, makes output voltage directly be fed back to inverting terminal.
FPC, flexible PCB is that the one kind being made using polyimides or polyester film as base material has height reliability, absolutely
Good flexible printed circuit.Abbreviation soft board or FPC, with Distribution density is high, lightweight, the spy that thickness of thin, bending property are good
Point.
TFT refers to that each liquid crystal pixel point on liquid crystal display is driven by integrated thin film transistor (TFT) behind
It is dynamic.
To enable goal of the invention of the invention, feature, advantage more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Referring to Fig. 1, including for a kind of one embodiment of LED mosaic screens driving structure provided in an embodiment of the present invention：
It is made up of the splicing of several display units 1, it is necessary to illustrate, foregoing display unit 1 is by several LED particles
Mount or be welded on the substrate of display unit；
At least two display units 1 are connected with a driving chip 2, it is necessary to illustrate, foregoing driving chip is
LCD driving chips, further, LCD driving chips are source driving chip, such as TFT-LCD driving chips；
The passage channel quantity of driving chip 2 averagely corresponds to and distributes to connected display unit 1, it is necessary to illustrate
, for display unit 1 resolution ratio be 120 × 120 when, by the LED particle possessed is respectively trichromatic of RGB
Grain, then required passage channel quantity is 120 × 3=360 passage channel, correspondingly possesses 360 passages
Channel display unit 1 can averagely correspond to distribution by the passage channel quantity of driving chip 2, determine today with driving
The quantity for the display unit 1 that dynamic chip 2 is connected, is not limited specifically herein.
In the present embodiment, when the passage channel quantity of a foregoing driving chip 2 is 1440 passage channel,
Further, 1440 passage channel mean allocations give at least two display units that a driving chip 2 is connected
1, such as when the display unit 1 being connected with a driving chip 2 is two, then the passage of each display unit 1 needs distribution
For 360 passage channel, do not limit specifically herein.
It is understood that be also associated with the present embodiment between the input of display unit 1 and driving chip 2 voltage with
Coupling device 5 so that the voltage of several LED particles of display unit 1 obtains gain, further, as shown in Figures 2 and 3, often
Branch road between individual display unit 1 and driving chip 2 is connected with a voltage follower 5, it is necessary to explanation, foregoing display
The input of unit 1 and each passage channel output ends of driving chip are connected with least one voltage follower 5.
As shown in Figures 1 to 3, driving chip 2 is attached with display unit 1 by FPC (flexible circuit board) 3, further
Ground, FPC3 is connected with the PCB substrate 4 of the bottom surface of display unit 1, it is necessary to illustrate, PCB substrate 4 is foregoing attachment or welding
There is the substrate of the bottom surface of display unit 1 of several LED particles.
Foregoing FPC3 is connected with PCB substrate 4 with binding mode, it is necessary to illustrate, the binding mode can be heating
The common FPC3 of pressurization binding mode, is not limited specifically herein；
And/or
Foregoing FPC3 is connected with PCB substrate 4 in board to board connector mode, it is to be understood that foregoing plate is to plate
Connector can be that two ends possess connector and are connected respectively with FPC3 with PCB substrate 4, not limit specifically herein.
As shown in Fig. 2 driving chip 2 is when possessing 1440 passage channel driving chip 2, can be according to aobvious
The resolution ratio for showing unit 1 is, for example, 120 × 120, and the quantity of the passage channel required for it is 120 × 3=360 passage
Channel, then the driving chip 2 for possessing 1440 passage channel can be 4 displays for possessing 360 passage channel
Unit 1 enters row of channels channel offer, does not limit specifically herein.
In order to make it easy to understand, being closed below with a concrete application scene to the connection of the LED mosaic screen driving structures shown in Fig. 2
System is described in detail, and application examples includes：
A) the passage channel quantity of driving chip 2 is determined, the passage channel quantity of such as driving chip 2 is
1440 passage channel that TFT-LCD driving chips are generally configured with；
B) resolution ratio of the display unit 1 of LED mosaic screens, such as 120 × 120, the passage channel required for it are determined
Quantity be 120 × 3=360 passage channel；
C) drawn according to the resolution ratio of the passage channel quantity of driving chip 2 and the display unit 1 of LED mosaic screens
Passage channel quantity, determine a driving chip 2 passage channel quantity can mean allocation display unit 1 number
Amount, the 1440 passage channel for example possessed TFT-LCD driving chips can be averagely allocated to 4 and possess 360 passages
Channel display unit 1；
D) the passage channel output ends of driving chip 2 and the passage channel of display unit 1 input are connected
Connect, in order that the driving voltage thrust for obtaining each output end meets the passage channel of each display unit input enough
LED particle normal luminous, can be each passage channel output ends of input in display unit 1 and driving chip
At least one voltage follower 5 is connected with, it is necessary to which explanation, the connection quantity of voltage follower 5 can be spliced according to LED
Shield the performance of itself to be set, do not limit specifically herein.
A kind of LED mosaic screens driving structure provided in an embodiment of the present invention, wherein, including：Spelled by several display units 1
Composition is connect, at least two display units 1 are connected with a driving chip 2；The passage channel quantity of driving chip 2 is averaged
Correspondence distributes to connected display unit 1.In the present embodiment, by using the multichannel characteristic of a driving chip 2, with
At least two display units 1 in multiple display units 1 of LED mosaic screens are connected, and multiple passages of driving chip 2 are put down
The display unit 1 for distributing to driving chip connection is corresponded to, one is just realized and possesses thousands of passage channel's up to a hundred
Driving chip 2 drives multiple LED display units 1, solves by each display module of existing LED mosaic screens is used
Passage channel quantity of the quantity well below thousands of passage channel that driving chip possesses, therefore, cause
All passages of driving chip can not obtain the technical problem made full use of.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a kind of LED mosaic screens driving structure, is made up of the splicing of several display units, it is characterised in that
Display unit described at least two is connected with a driving chip；
The passage channel quantity of the driving chip averagely corresponds to and distributes to the connected display unit；
The driving chip is LCD driving chips；
The LCD driving chips are source driving chip；
Voltage follower is also associated between the input of the display unit and the driving chip；
Each passage channel output ends of the input and the driving chip are connected with least one voltage follower.
2. LED mosaic screens driving structure according to claim 1, it is characterised in that the driving chip and the display
Unit is attached by FPC.
3. LED mosaic screens driving structure according to claim 2, it is characterised in that the FPC and the display unit bottom
The PCB substrate connection in face.
4. LED mosaic screens driving structure according to claim 3, it is characterised in that the FPC and the PCB substrate with
Binding mode is connected.
5. LED mosaic screens driving structure according to claim 3, it is characterised in that the FPC and the PCB substrate with
Board to board connector mode is connected.
6. LED mosaic screens driving structure according to claim 1, it is characterised in that the display unit is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410723156.2A CN104361865B (en) | 2014-12-02 | 2014-12-02 | A kind of LED mosaic screens driving structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410723156.2A CN104361865B (en) | 2014-12-02 | 2014-12-02 | A kind of LED mosaic screens driving structure |
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| CN104361865A CN104361865A (en) | 2015-02-18 |
| CN104361865B true CN104361865B (en) | 2017-07-18 |
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| CN201410723156.2A Active CN104361865B (en) | 2014-12-02 | 2014-12-02 | A kind of LED mosaic screens driving structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI712169B (en) * | 2018-11-23 | 2020-12-01 | 友達光電股份有限公司 | Spliced unit and spliced panel |
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| US6292157B1 (en) * | 1996-03-25 | 2001-09-18 | Rainbow Displays, Inc. | Flat-panel display assembled from pre-sorted tiles having matching color characteristics and color correction capability |
| CN101809644A (en) * | 2007-09-19 | 2010-08-18 | 全球Oled科技有限责任公司 | Tiled passive matrix electro-luminescent display |
| CN102103826A (en) * | 2009-12-22 | 2011-06-22 | 康佳集团股份有限公司 | Light emitting diode (LED) display screen splicing control system and LED display screen |
| CN201975047U (en) * | 2010-11-05 | 2011-09-14 | 深圳利亚德光电有限公司 | Intelligent storage system and LED (light-emitting diode) display panel and display thereof |
| CN102592516A (en) * | 2012-02-29 | 2012-07-18 | 信利半导体有限公司 | Large size display screen |
| CN202771775U (en) * | 2012-09-11 | 2013-03-06 | 四川虹视显示技术有限公司 | OLED multi-screen driving structure |
-
2014
- 2014-12-02 CN CN201410723156.2A patent/CN104361865B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6292157B1 (en) * | 1996-03-25 | 2001-09-18 | Rainbow Displays, Inc. | Flat-panel display assembled from pre-sorted tiles having matching color characteristics and color correction capability |
| CN101809644A (en) * | 2007-09-19 | 2010-08-18 | 全球Oled科技有限责任公司 | Tiled passive matrix electro-luminescent display |
| CN102103826A (en) * | 2009-12-22 | 2011-06-22 | 康佳集团股份有限公司 | Light emitting diode (LED) display screen splicing control system and LED display screen |
| CN201975047U (en) * | 2010-11-05 | 2011-09-14 | 深圳利亚德光电有限公司 | Intelligent storage system and LED (light-emitting diode) display panel and display thereof |
| CN102592516A (en) * | 2012-02-29 | 2012-07-18 | 信利半导体有限公司 | Large size display screen |
| CN202771775U (en) * | 2012-09-11 | 2013-03-06 | 四川虹视显示技术有限公司 | OLED multi-screen driving structure |
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| CN104361865A (en) | 2015-02-18 |
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Address after: Kezhu road high tech Industrial Development Zone, Guangzhou city of Guangdong Province, No. 233 510670 Patentee after: Wei Chong group Limited by Share Ltd Address before: 510670 Guangdong city of Guangzhou province Kezhu Guangzhou high tech Industrial Development Zone, Road No. 233 Patentee before: Guangdong Weichuangshixun Science and Technology Co., Ltd. |
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