CN110379327A - A kind of display module of matrix form SMD-LED structure - Google Patents
A kind of display module of matrix form SMD-LED structure Download PDFInfo
- Publication number
- CN110379327A CN110379327A CN201910744851.XA CN201910744851A CN110379327A CN 110379327 A CN110379327 A CN 110379327A CN 201910744851 A CN201910744851 A CN 201910744851A CN 110379327 A CN110379327 A CN 110379327A
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- chip
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- lamp bead
- pin
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- 239000011159 matrix material Substances 0.000 title claims abstract description 22
- 239000011324 bead Substances 0.000 claims abstract description 43
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 1
- 229910000679 solder Inorganic materials 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
Abstract
The present invention relates to a kind of display modules of matrix form SMD-LED structure, including several lamp bead modules and drive module in array setting, drive module and lamp bead module are electrically connected, drive module is for driving lamp bead module to show and close, it is characterized in that, the lamp bead module includes at least a pixel, the corresponding pixel chip of one pixel, one pixel chip includes the red chip being displayed in red respectively, the blue chip for showing the Green Chip of green and being displayed in blue, it further include a public pole, public pole is by red chip, the common cathode or common-anode that Green Chip and corresponding three negative electrode pins of blue chip or three negative electrode pins link together；The cabling mode of the pin of the public pole on circuit boards is vertical cabling.The invention enables the luminance proportion that the lamp bead module at left and right sides of display module is shown, the problem of high contrast interference of different chip chambers is effectively reduced, user experience impression is improved.
Description
Technical field
The present invention relates to LED display module technical field, the display module of specifically a kind of matrix form SMD-LED structure.
Background technique
Currently, the public extremely horizontal cable run mode of the chip of most of display module, so-called horizontal cable run refer to public affairs
The line of copolar is arranged along with horizontal direction, namely is consistent with the left and right directions for usually observing some object.This
Kind of horizontal cable run mode, which will lead to the color that display module is shown, can be biased to some colour system and brightness irregularities, such as display
Color is partially red or partially blue.Occur be biased to some colour system the problem of essentially consist in, human eye observation's object usually to left and right (namely
It is horizontal) direction is more sensitive, and when the display brightness when one side is brighter than another side, human eye is readily able to perceive；Together
When by public pole route direct impedance effect, the electric current of public pole close to power end can be than the public pole of separate power end
Electric current is bigger, causes the pixel chip close to power end to shine brighter, so that the brightness irregularities that the right and left is shown.Due to people
Eye is more sensitive to the display brightness of the right and left, and the brightness for causing the right and left to show along with the public pole of horizontal cable run is not
Uniformly, thus it is comprehensive cause eye-observation to brightness irregularities and be biased to some colour system.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the invention to provide a kind of display module of matrix form SMD-LED structure,
It is able to solve the non-uniform problem of display brightness of eye-observation display module left and right directions.
The technical solution achieved the object of the present invention are as follows: a kind of display module of matrix form SMD-LED structure, including be in battle array
Several lamp bead modules and drive module of setting are arranged, drive module and lamp bead module are electrically connected, and drive module is for driving lamp
Pearl module shows and closes；
The lamp bead module includes at least a pixel, the corresponding pixel chip of a pixel, a pixel core
Piece includes the red chip being displayed in red respectively, the Green Chip of display green and the blue chip being displayed in blue, and further includes one
A public pole, public pole are connected by corresponding three negative electrode pins of red chip, Green Chip and blue chip or three negative electrode pins
The common cathode or common-anode being connected together；
The cabling mode of the pin of the public pole on circuit boards is vertical cabling, and vertical cabling refers to drawing for public pole
The line trend of foot is perpendicular with the horizontal direction of user's normal use display module, so that the lamp at left and right sides of display module
The luminance proportion that pearl module is shown.
Further, each lamp bead module is in one side of the array printing in circuit board, drive module at a certain distance
It is printed on the another side of circuit board.
Further, it is M × N number of pixel that the lamp bead module, which is packaged with ranks,.
Further, M pixel chip of N number of pixel chip or same row of the same a line of the M × N number of pixel
The pole R pin links together, and a corresponding Pad and the above-mentioned pole R to link together is arranged in the other end of printed circuit
Pin is electrically connected,
The pole G pin with M pixel chip of N number of pixel chip or same row of a line links together, and is printing
A corresponding Pad is arranged in the other end of circuit and the above-mentioned pole the G pin to link together is electrically connected,
The pole B pin with M pixel chip of N number of pixel chip or same row of a line links together, and is printing
A corresponding Pad is arranged in the other end of circuit and the above-mentioned pole the B pin to link together is electrically connected.
Further, the M × N number of pixel is that common cathode or common-anode connect.
Further, the M × N is 2 × 2.
Further, the drive module includes driving chip, and driving chip is Drive of row and column integrated form chip.
Further, the drive module further includes signal amplification chip, gives lamp bead module for amplifying electric current and exporting.
The invention has the benefit that the invention enables the display brightness of the lamp bead module at left and right sides of display module is equal
The problem of weighing, the high contrast interference of different chip chambers is effectively reduced, improves user experience impression.Meanwhile improving lamp bead mould
The thrust of block born, improves anti-collision capacity.
Detailed description of the invention
Fig. 1 is the schematic diagram of the vertical cabling of public pole；
Fig. 2 is matrix form common cathode connection schematic diagram；
Fig. 3 is matrix form common-anode connection schematic diagram.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention:
As shown in Figure 1 to Figure 3, a kind of display module of matrix form SMD-LED structure, including several lamps in array setting
Pearl module and drive module, each lamp bead module are in one side of the array printing in circuit board, drive module printing at a certain distance
In the another side of circuit board, drive module and lamp bead module are electrically connected, and drive module is for driving lamp bead module to show and close
It closes.
The lamp bead module includes the pole R pin, the pole G pin, the pole B pin and public pole pin, the pole R pin, the pole G pin, B
Pole pin is respectively the pin for being displayed in red the chip of pixel, the pin of the chip of display green pixel, is displayed in blue pixel
One pixel of the pin of chip namely a lamp bead module composition include be displayed in red respectively, three of green and blue
Chip, is referred to as red chip, Green Chip and blue chip namely RGB three primary colours constitute a pixel.Public pole
It is linked together by corresponding three negative electrode pins of red chip, Green Chip and three chips of blue chip or three negative electrode pins
Common cathode or common-anode.
As shown in Figure 1, the cabling mode of the pin of the public pole on circuit boards is vertical cabling, the vertical cabling
Refer to the line trend of the pin of public pole and the horizontal direction of user's normal use display module is perpendicular namely public pole
For the line trend of pin perpendicular to level ground, this is accustomed to according to user's normal use to determine.Due to drawing for public pole
Foot is vertical cabling mode, so that the pixel chip (red chip, Green Chip and blue chip) with all connections of public pole
Be respectively positioned on the geometric center position of the outlet point of the pin of public pole, enable pixel chip public pole pin output side
Being attached at the center of printed circuit board just, therefore can control the line pressure drop of the pixel chip of public pole left and right ends
It is consistent, reduces the inverse bias-voltage of LED, so that the luminance proportion that the lamp bead module at left and right sides of display module is shown, has
Effect reduces the problem of high contrast interference of different chip chambers.Although the pin of public pole is that vertical cabling will lead to vertical direction
The brightness disproportionation weighing apparatus that shows of lamp bead module, it is possible to top is bright, following dark or top is dark, following bright, but due to eye-observation
Object is usually all to notice left and right directions (namely horizontal direction), and it is then unwise to correspond to up and down direction (namely vertical direction)
Sense, even if the brightness irregularities that two sides are shown up and down, also do not pay attention to generally observing.By the vertical cabling mode of public pole,
User experience impression can be improved.
Preferably, it is M × N number of pixel that the lamp bead module, which is packaged with ranks, to constitute the display module of matrix form.
As M=N=1, then only one pixel of lamp bead module, that is to say the display module being made of single pixel point；Work as M, N > 1
When, then a lamp bead module is packaged with M × N number of pixel, that is to say the display module being made of multiple pixels.Likewise,
The vertical cabling mode of public pole is not only suitable for the display module of single pixel point, is also applied for the display module of more pixels.One
The corresponding pixel chip of a pixel, a pixel chip includes red chip, Green Chip and blue chip and a public affairs
Copolar, public pole are by corresponding three negative electrode pins of red chip, Green Chip and three chips of blue chip or three anodes
The common cathode or common-anode that pin links together.
The pole R pin with M pixel chip of N number of pixel chip or same row of a line links together, and is printing
A corresponding Pad (pad) is arranged in the other end of circuit and the above-mentioned pole the R pin to link together is electrically connected, with a line
The pole the G pin of M pixel chip of N number of pixel chip or same row links together, and is arranged in the other end of printed circuit
One corresponding Pad and the above-mentioned pole the G pin to link together are electrically connected, with N number of pixel chip of a line or the M of same row
The pole the B pin of a pixel chip links together, and a corresponding Pad and above-mentioned connection is arranged in the other end of printed circuit
The pole B pin together is electrically connected, and the pole the R pin to link together can be connected to one by the copper wire of printed circuit board
It rises, likewise, the pole the G pin to link together is linked together by the copper wire of printed circuit board, the pole B to link together is drawn
Foot is linked together by the copper wire of printed circuit board.The public pole of M pixel chip of same row links together, Ke Yitong
The copper wire for crossing printed circuit board links together.It thus can be formed and to be made of multiple lamp bead modules on a printed circuit
Matrix array display module, each lamp bead module include encapsulating M × N number of pixel chip.Under such connection type, matrix form
M × N number of pixel display module, it is only necessary to 3a+2 solder joint, wherein a takes the larger value in M and N, that is, if M≤N,
3N+2 solder joint is then only needed, 3M+2 solder joint is otherwise only needed.And existing conventional display module, for including M × N number of
The display module of pixel then needs 4*M*N solder joint.So that the solder joint of the application is much in the case where same pixel point
The solder joint needed less than existing display module.
As shown in Figures 2 and 3, the example that a lamp bead module encapsulates 2 × 2 pixels is enumerated.Digital 1-4 in figure
The first pixel chip is indicated to the 4th pixel chip, R, G, B respectively indicate red chip, Green Chip and blue chip, R+, G
+, B+ indicate pixel chip diode anode, it is corresponding, R-, G-, B- indicate pixel chip diode anode.Fig. 2
For the connection of matrix form common cathode, Fig. 3 is the connection of matrix form common-anode.In Fig. 2, the R of the first pixel chip and third pixel chip
+, the pin of G+, B+ be respectively connected together, the pin of R+, G+, B+ of the second pixel chip and the 4th pixel chip connect respectively
It is connected together, the public pole of four pixel chips links together and forms the first public pole and the second public pole, and first is public
Pole and the second public pole are referred to as public pole.Therefore, four pixel chips only need 8 (namely 3*2+2) a pins, by this four cores
Piece encapsulation constitutes a lamp bead module on a printed circuit, it is only necessary to which 8 pin welding are on a printed circuit, corresponding
Form 8 solder joints.Compared to conventional display module, each lamp bead module is only arranged a pixel chip, and each picture
Plain chip has 4 pins, and four pixel chips need a pin welding of 16 (namely 4*2*2) on a printed circuit, need
Form 16 solder joints.The application reduces solder joint, has saved the occupied space of printed circuit, so that the printed circuit of same area
Plate can encapsulate more lamp bead modules；Simultaneously as lamp bead module is compared to the lamp bead module that an independent pixel chip is constituted,
Increase to 8 solder joints by 4 solder joints and enhances lamp bead so that the ability that lamp bead module is adsorbed on printed circuit board is strengthened
The anti-collision capacity of module.Actual measurement obtains, compared to the existing display module using discrete LED, the lamp of the application
The thrust that pearl module can be born reaches 50 Ns or more, is original 2 times or more.
Preferably, drive module includes driving chip, and the model MY9748QFN of driving chip, which is ranks drive
Dynamic integrated form chip.
Preferably, drive module further includes signal amplification chip, the model 74HC245 of signal amplification chip, and signal is put
Large chip gives lamp bead module for amplifying electric current and exporting, and maintains electric current required for the normal display of lamp bead module.
Embodiment disclosed in this specification is an illustration to folk prescription region feature of the present invention, protection model of the invention
Embodiment without being limited thereto is enclosed, the equivalent embodiment of other any functions is fallen within the protection scope of the present invention.For this field
Technical staff for, various other corresponding changes and change can be made according to the above description of the technical scheme and ideas
Shape, and all these change and deformation all should belong within the scope of protection of the claims of the present invention.
Claims (8)
1. a kind of display module of matrix form SMD-LED structure, several lamp bead modules and drive module including being in array setting,
Drive module and lamp bead module are electrically connected, and drive module is for driving lamp bead module to show and close, which is characterized in that
The lamp bead module includes at least a pixel, the corresponding pixel chip of a pixel, a pixel chip packet
The red chip being displayed in red respectively, the Green Chip of display green and the blue chip being displayed in blue are included, further includes a public affairs
Copolar, public pole are connected to by corresponding three negative electrode pins of red chip, Green Chip and blue chip or three negative electrode pins
Common cathode or common-anode together；
The cabling mode of the pin of the public pole on circuit boards is vertical cabling, and vertical cabling refers to the pin of public pole
Line trend is perpendicular with the horizontal direction of user's normal use display module, so that the lamp bead mould at left and right sides of display module
The luminance proportion that block is shown.
2. the display module of matrix form SMD-LED structure according to claim 1, which is characterized in that each lamp bead
Module is in one side of the array printing in circuit board at a certain distance, and drive module is printed on the another side of circuit board.
3. the display module of matrix form SMD-LED structure according to claim 1, which is characterized in that the lamp bead module
Being packaged with ranks is M × N number of pixel.
4. the display module of matrix form SMD-LED structure according to claim 3, which is characterized in that the M × N number of picture
The pole the R pin of M pixel chip of N number of pixel chip or same row of same a line of vegetarian refreshments links together, and in printing electricity
A corresponding Pad is arranged in the other end on road and the above-mentioned pole the R pin to link together is electrically connected,
The pole G pin with M pixel chip of N number of pixel chip or same row of a line links together, and in printed circuit
The other end one corresponding Pad is set and the above-mentioned pole the G pin to link together is electrically connected,
The pole B pin with M pixel chip of N number of pixel chip or same row of a line links together, and in printed circuit
The other end one corresponding Pad is set and the above-mentioned pole the B pin to link together is electrically connected.
5. the display module of matrix form SMD-LED structure according to claim 4, which is characterized in that the M × N number of picture
Vegetarian refreshments is that common cathode or common-anode connect.
6. the display module of matrix form SMD-LED structure according to claim 3, which is characterized in that the M × N be 2 ×
2。
7. the display module of matrix form SMD-LED structure according to claim 1, which is characterized in that the drive module
Including driving chip, driving chip is Drive of row and column integrated form chip.
8. the display module of matrix form SMD-LED structure according to claim 1, which is characterized in that the drive module
Further include signal amplification chip, gives lamp bead module for amplifying electric current and exporting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910744851.XA CN110379327A (en) | 2019-08-13 | 2019-08-13 | A kind of display module of matrix form SMD-LED structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910744851.XA CN110379327A (en) | 2019-08-13 | 2019-08-13 | A kind of display module of matrix form SMD-LED structure |
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| CN110379327A true CN110379327A (en) | 2019-10-25 |
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| CN201910744851.XA Pending CN110379327A (en) | 2019-08-13 | 2019-08-13 | A kind of display module of matrix form SMD-LED structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360450A (en) * | 2022-01-14 | 2022-04-15 | 南京浣轩半导体有限公司 | Line and row high-integration LED display driving chip and application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110121A (en) * | 2017-12-20 | 2018-06-01 | 西安智盛锐芯半导体科技有限公司 | LED lamp panel and LED lamp |
| CN108828862A (en) * | 2018-08-22 | 2018-11-16 | 惠科股份有限公司 | Array substrate and preparation method thereof |
| CN109065528A (en) * | 2018-08-14 | 2018-12-21 | 厦门凌阳华芯科技有限公司 | A kind of encapsulation of LED chip and light-emitting diode display |
| CN210167058U (en) * | 2019-08-13 | 2020-03-20 | 深圳视爵光旭电子有限公司 | Display module assembly of matrix SMD-LED structure |
-
2019
- 2019-08-13 CN CN201910744851.XA patent/CN110379327A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110121A (en) * | 2017-12-20 | 2018-06-01 | 西安智盛锐芯半导体科技有限公司 | LED lamp panel and LED lamp |
| CN109065528A (en) * | 2018-08-14 | 2018-12-21 | 厦门凌阳华芯科技有限公司 | A kind of encapsulation of LED chip and light-emitting diode display |
| CN108828862A (en) * | 2018-08-22 | 2018-11-16 | 惠科股份有限公司 | Array substrate and preparation method thereof |
| CN210167058U (en) * | 2019-08-13 | 2020-03-20 | 深圳视爵光旭电子有限公司 | Display module assembly of matrix SMD-LED structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360450A (en) * | 2022-01-14 | 2022-04-15 | 南京浣轩半导体有限公司 | Line and row high-integration LED display driving chip and application |
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| TA01 | Transfer of patent application right | ||
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Effective date of registration: 20191016 Address after: 518108, Shenzhen, Guangdong province Baoan District Shiyan street, Tong Tau community, Tong Tau, Nangang third industrial park, 18A building, building 1-3 Applicant after: Shenzhen INFiLED Electronics Co., Ltd. Applicant after: Zhejiang Inteled Optoeletronic Technology Co., Ltd. Address before: 1-3 / F, workshop 18a, Tangtou Nangang third industrial park, Tangtou community, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Applicant before: Shenzhen INFiLED Electronics Co., Ltd. |
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