CN113066397A - LED display module with stable structure and good flatness - Google Patents
LED display module with stable structure and good flatness Download PDFInfo
- Publication number
- CN113066397A CN113066397A CN202110405683.9A CN202110405683A CN113066397A CN 113066397 A CN113066397 A CN 113066397A CN 202110405683 A CN202110405683 A CN 202110405683A CN 113066397 A CN113066397 A CN 113066397A
- Authority
- CN
- China
- Prior art keywords
- printed circuit
- led display
- circuit board
- display module
- led
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000003292 glue Substances 0.000 claims abstract description 46
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 239000010949 copper Substances 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 239000012943 hotmelt Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0274—Optical details, e.g. printed circuits comprising integral optical means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
- H05K7/1402—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
- H05K7/1402—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards
- H05K7/1407—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards by turn-bolt or screw member
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides an LED display module with stable structure and good flatness, which comprises a bottom shell, a printed circuit board and an LED, wherein the LED is arranged on the printed circuit board, the printed circuit board is fixedly arranged on the bottom shell, and a glue filling layer is filled between the printed circuit board and the bottom shell. The invention has the beneficial effects that: one deck glue filling layer is filled between printed circuit board and drain pan, utilizes the thickness adjustable advantage of glue filling layer, and the difference in height of the printed circuit board that will assemble is balanced, is favorable to improving the roughness, improves the display effect to, the glue filling layer can form adhesive action to printed circuit board and drain pan, can further consolidate the structural stability of both, especially when the structure of paster copper post appears becoming flexible when dropping, still can guarantee firmly to combining of printed circuit board and drain pan.
Description
Technical Field
The invention relates to an LED display module, in particular to an LED display module with stable structure and good flatness.
Background
A traditional LED display module is shown in FIG. 1, which generally comprises a bottom case 101, a PCB102 and LEDs 103, wherein the PCB102 and the LEDs 103 are assembled into an LED display panel, and a plurality of LED display panels are mounted and fixed on the bottom case 101 in a splicing manner, wherein the PCB102 is mounted on the bottom case 101 through patch copper columns 104 and mounting screws 105, because the screw locking is a hard structure, the firmness of the patch copper columns 104 on the PCB is limited, and after transportation or collision, loosening or dropping is easy to occur, so that the bottom case 101 is separated from the PCB102, the structural stability is poor, and because the thicknesses of different PCBs 102 are not consistent, some thin points, some thick points, and thickness difference (the thickness difference of PCBs with different specifications and different specifications can reach 0.2-0.3 mm) can exist, so that steps (steps exist among the PCBs 102 after splicing and assembling) can occur on a display surface, and bright lines or black shadows can exist when the PCBs are viewed at a large angle can occur, see fig. 2, the flatness is reduced, affecting the display effect.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the LED display module which is stable in structure and good in flatness.
The invention provides an LED display module with stable structure and good flatness, which comprises a bottom shell, a printed circuit board and an LED, wherein the LED is arranged on the printed circuit board, the printed circuit board is fixedly arranged on the bottom shell, and a glue filling layer is filled between the printed circuit board and the bottom shell.
As a further improvement of the invention, the bottom shell is provided with a glue injection hole.
As a further improvement of the present invention, the glue outlet of the glue injection hole is disposed between the printed circuit board and the bottom case.
As a further improvement of the invention, at least two printed circuit boards are assembled on the bottom shell, and each printed circuit board is provided with at least one corresponding glue injection hole.
As a further improvement of the invention, the glue injection hole is in a bell-mouthed shape.
As a further improvement of the invention, the glue filling layer is filled with fast-curing glue.
As a further improvement of the invention, the glue filling layer is filled with high-performance hot melt glue.
As a further improvement of the invention, the printed circuit board is connected with a patch copper column, and the bottom shell is provided with a mounting fastening screw which is connected with the patch copper column.
As a further improvement of the present invention, the LED and the printed circuit board form an LED display panel, the LED display panel is a surface mount structure or a chip-on-board package structure, the surface mount structure is formed by attaching an LED device on the printed circuit board, and the chip-on-board package structure is formed by directly bonding an LED chip on the printed circuit board.
The invention has the beneficial effects that: through the above scheme, fill one deck glue filling layer between printed wiring board and drain pan, utilize the thickness adjustable advantage of glue filling layer, the difference in height balance of the printed wiring board that will assemble falls, be favorable to improving the roughness, improve display effect to, the glue filling layer can form the adhesive action to printed wiring board and drain pan, can further consolidate the structural stability of both, especially when the structure of paster copper post appears becoming flexible when dropping, still can guarantee to firmly combine of printed wiring board and drain pan.
Drawings
Fig. 1 is a schematic diagram of a conventional LED display module in the prior art.
Fig. 2 is a partially enlarged view of a conventional LED display module in the prior art.
Fig. 3 is a schematic view of an LED display module with stable structure and good flatness according to the present invention.
Fig. 4 is a partial enlarged view of an LED display module with stable structure and good flatness according to the present invention.
Detailed Description
The invention is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
As shown in fig. 3 to 4, an LED display module with a stable structure and good flatness comprises a bottom case 1, a plurality of printed circuit boards 2 and an LED3, wherein the LED3 is disposed on the printed circuit boards 2, the plurality of printed circuit boards 2 are assembled and fixed on the bottom case 1, a glue filling layer 6 is filled between each printed circuit board 2 and the bottom case 1, and the flat assembly of the plurality of printed circuit boards 2 can be realized by utilizing the advantage of the adjustable thickness of the glue filling layer 6, so as to meet the requirement of a flat display surface.
And the bottom shell 1 is provided with a glue injection hole 7.
The glue outlet of the glue injection hole 7 is arranged between the printed circuit board 2 and the bottom shell 1, and glue can be injected into the gap between the printed circuit board 2 and the bottom shell 1 through the glue injection hole 7 to form a glue filling layer 6.
Each printed circuit board 2 is at least corresponding to one glue injection hole 7.
The glue injection hole 7 is in a horn-hole shape.
The glue filling layer 6 is formed by filling fast-curing glue.
The glue filling layer 6 is formed by filling high-performance hot melt glue.
The printed circuit board 2 is connected with a patch copper column 4, the bottom shell is provided with a mounting fastening screw 5, and the mounting fastening screw is connected with the patch copper column 4 by the mounting fastening screw 5.
The LED3 and the printed circuit board 2 form an LED display panel, the LED display panel can adopt two different structures, one is a surface mount structure, the LED3 is preferably an LED lamp bead, namely the LED lamp bead is pasted on a PCB (namely PCB + LED packaging device), commonly called as an SMD (surface mount device) display lamp panel, the other is chip-on-board packaging, namely COB, the LED display lamp panel is integrally packaged, the LED3 is preferably an LED chip, namely the LED chip is directly bonded on the PCB, and a layer of protective glue is sealed on the surface.
According to the LED display module with the stable structure and the good flatness, the glue filling layer 6 which is cured quickly (such as high-performance hot melt glue) is additionally arranged between the bottom shell 1 and the printed circuit board 2, and the height difference among the printed circuit board 2, the bottom shell 1 and the LED3 is balanced by utilizing the advantage that the thickness of the glue filling layer 6 is adjustable, so that the consistency of the whole thickness of the whole LED display module is ensured; meanwhile, the glue filling layer 6 can form an adhesive effect on the bottom shell 1 and the printed circuit board 2, so that the structural stability of the bottom shell 1 and the printed circuit board 2 is further enhanced, and particularly when the structure of the surface-mounted copper column 4 is loosened and falls, the printed circuit board 2 can still be firmly combined with the bottom shell 1.
The LED display module provided by the invention has the advantages that the structure is stable, the flatness is good, no matter the LED display module is a lamp bead structure or a COB integrated packaging structure surface, different display panels are flat after being assembled, the steps are obviously reduced, the LED display module has a flat display surface, and the display effect is also improved.
The LED display module provided by the invention has the advantages of stable structure and good flatness, and is particularly suitable for small spacing and micro spacing. More LED display products have the requirement of touch interaction, have smooth display surface, do not assemble the step and can promote product quality well.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (9)
1. The utility model provides a stable in structure, good LED display module assembly of roughness, includes drain pan, printed wiring board and LED, LED sets up on the printed wiring board, printed wiring board fixed mounting be in on the drain pan, its characterized in that: and a glue filling layer is filled between the printed circuit board and the bottom shell.
2. The LED display module of claim 1, which has a stable structure and good flatness, and is characterized in that: and the bottom shell is provided with a glue injection hole.
3. The LED display module of claim 2, wherein the LED display module has a stable structure and good flatness, and comprises: and the glue outlet of the glue injection hole is arranged between the printed circuit board and the bottom shell.
4. The LED display module of claim 2, wherein the LED display module has a stable structure and good flatness, and comprises: at least two printed circuit boards are assembled on the bottom shell, and each printed circuit board is at least provided with one corresponding glue injection hole.
5. The LED display module of claim 2, wherein the LED display module has a stable structure and good flatness, and comprises: the glue injection hole is in a horn hole shape.
6. The LED display module of claim 1, which has a stable structure and good flatness, and is characterized in that: the glue filling layer is formed by filling fast-curing glue.
7. The LED display module of claim 1, which has a stable structure and good flatness, and is characterized in that: the glue filling layer is formed by filling high-performance hot melt glue.
8. The LED display module of claim 1, which has a stable structure and good flatness, and is characterized in that: the printed circuit board is connected with a patch copper column, the bottom shell is provided with a mounting fastening screw, and the mounting fastening screw is connected with the patch copper column.
9. The LED display module of claim 1, which has a stable structure and good flatness, and is characterized in that: the LED and the printed circuit board form an LED display board, the LED display board is of a surface patch structure or a chip-on-board packaging structure, the surface patch structure is formed by attaching an LED device on the printed circuit board, and the chip-on-board packaging structure is formed by directly bonding an LED chip on the printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110405683.9A CN113066397B (en) | 2021-04-15 | 2021-04-15 | LED display module assembly stable in structure, roughness are good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110405683.9A CN113066397B (en) | 2021-04-15 | 2021-04-15 | LED display module assembly stable in structure, roughness are good |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113066397A true CN113066397A (en) | 2021-07-02 |
| CN113066397B CN113066397B (en) | 2024-03-15 |
Family
ID=76566779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110405683.9A Active CN113066397B (en) | 2021-04-15 | 2021-04-15 | LED display module assembly stable in structure, roughness are good |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113066397B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114333573A (en) * | 2021-12-03 | 2022-04-12 | 昆山国显光电有限公司 | Display module and display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752275A (en) * | 2009-10-23 | 2010-06-23 | 中外合资江苏稳润光电有限公司 | Packaging method and packaging structure of light emitting diode (LED) module |
| CN201859623U (en) * | 2010-11-05 | 2011-06-08 | 深圳利亚德光电有限公司 | LED (light-emitting diode) display screen |
| CN102122463A (en) * | 2011-03-24 | 2011-07-13 | 李海涛 | Chip LED (light emitting diode) display screen and manufacturing method thereof |
| CN102163392A (en) * | 2011-03-09 | 2011-08-24 | 深圳雷曼光电科技股份有限公司 | Light emitting diode (LED) assembled screen |
| CN103280164A (en) * | 2013-05-30 | 2013-09-04 | 创维光电科技(深圳)有限公司 | Led display screen module and led display screen |
| US20190164940A1 (en) * | 2017-11-29 | 2019-05-30 | Leyard Optoelectronic Co.,Ltd | Small pitch LED display module and manufacturing method thereof |
| CN210411366U (en) * | 2019-06-19 | 2020-04-28 | 深圳雷曼光电科技股份有限公司 | Glue filling head assembly, glue filling machine and display module needing glue filling |
-
2021
- 2021-04-15 CN CN202110405683.9A patent/CN113066397B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752275A (en) * | 2009-10-23 | 2010-06-23 | 中外合资江苏稳润光电有限公司 | Packaging method and packaging structure of light emitting diode (LED) module |
| CN201859623U (en) * | 2010-11-05 | 2011-06-08 | 深圳利亚德光电有限公司 | LED (light-emitting diode) display screen |
| CN102163392A (en) * | 2011-03-09 | 2011-08-24 | 深圳雷曼光电科技股份有限公司 | Light emitting diode (LED) assembled screen |
| CN102122463A (en) * | 2011-03-24 | 2011-07-13 | 李海涛 | Chip LED (light emitting diode) display screen and manufacturing method thereof |
| CN103280164A (en) * | 2013-05-30 | 2013-09-04 | 创维光电科技(深圳)有限公司 | Led display screen module and led display screen |
| US20190164940A1 (en) * | 2017-11-29 | 2019-05-30 | Leyard Optoelectronic Co.,Ltd | Small pitch LED display module and manufacturing method thereof |
| CN210411366U (en) * | 2019-06-19 | 2020-04-28 | 深圳雷曼光电科技股份有限公司 | Glue filling head assembly, glue filling machine and display module needing glue filling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114333573A (en) * | 2021-12-03 | 2022-04-12 | 昆山国显光电有限公司 | Display module and display device |
| CN114333573B (en) * | 2021-12-03 | 2023-11-21 | 昆山国显光电有限公司 | Display module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113066397B (en) | 2024-03-15 |
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