CN109765710B - Display module assembly with antidetonation function - Google Patents
Display module assembly with antidetonation function Download PDFInfo
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- CN109765710B CN109765710B CN201910193211.4A CN201910193211A CN109765710B CN 109765710 B CN109765710 B CN 109765710B CN 201910193211 A CN201910193211 A CN 201910193211A CN 109765710 B CN109765710 B CN 109765710B
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- liquid crystal
- frame
- crystal screen
- circuit board
- pcb circuit
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 69
- 239000011521 glass Substances 0.000 claims abstract description 22
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims description 56
- 238000010438 heat treatment Methods 0.000 claims description 17
- 239000003292 glue Substances 0.000 claims description 6
- 239000011241 protective layer Substances 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a display module with an anti-vibration function, which comprises a PCB circuit board, a liquid crystal screen, a rubber frame, a backlight assembly and an outer frame, wherein the rubber frame is fixedly arranged on the PCB circuit board, the backlight assembly is fixed in the rubber frame, the liquid crystal screen is arranged on the backlight assembly, a bulge is arranged on the side edge of the rubber frame, the liquid crystal screen is fixed on the bulge of the rubber frame through gluing, the outer frame is buckled on the PCB circuit board through a buckle, a display window for exposing a display area of the liquid crystal screen is arranged in the middle of the outer frame, pins for mounting connection are arranged on the back of the PCB circuit board, bolt fixing holes are formed in the PCB circuit board at one end of each pin, an elastic plate is arranged on the outer frame at the end opposite to each pin, and the elastic plate is provided with the bolt fixing holes. According to the invention, the elastic plates on the rubber frame and the outer frame have excellent vibration resistance, and the damage to glass devices in the device process is less.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display module with an anti-seismic function.
Background
At present, liquid crystal screens are more and more common, the liquid crystal screens are most remarkable in common household equipment such as mobile phones, media players and small entrance-level televisions, but at present, main structural parts of the liquid crystal screens all comprise glass and are easy to damage, because outdoor equipment is easy to vibrate and collide, especially in military environments, vibration and collide are more frequent, the conventional display module can influence the normal use of the liquid crystal screens when being vibrated and collided due to the problem of structural arrangement, glass devices are easy to damage during assembly, in addition, the electromagnetic interference phenomenon in modern environments is more and more serious, the influence on the common mobile phone liquid crystal screens is good, but for precise display occasions, especially the military anti-interference liquid crystal screens are very few, the existing market lacks mature products, the cost of the existing few products is high, the anti-interference capability is not strong, and the requirement of military anti-interference electromagnetic shielding cannot be met.
Disclosure of Invention
The invention mainly aims to provide an anti-electromagnetic interference display module, which aims to solve the technical problem that the normal use of a liquid crystal screen is affected and the service life of the liquid crystal screen is affected when the display module in the prior art is subjected to vibration and impact.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the display module with the anti-vibration function comprises a PCB circuit board, a liquid crystal screen, a rubber frame, a backlight assembly and an outer frame, wherein the rubber frame is fixedly arranged on the PCB circuit board, the backlight assembly is fixed in the rubber frame, the liquid crystal screen is arranged on the backlight assembly, the side edge of the rubber frame is provided with a bulge, the liquid crystal screen is fixed on the bulge of the rubber frame through gluing, the outer frame is a groove-type frame capable of accommodating the liquid crystal screen, the outer frame is installed on the PCB through the buckle lock, and outer frame middle part is equipped with the display window that supplies LCD screen display area to expose, PCB circuit board back is equipped with the stitch that is used for the erection joint, be equipped with the bolt fixed orifices on the PCB circuit board of stitch one end, be equipped with the elastic plate on the outer frame with stitch opposite end, be equipped with the bolt fixed orifices on the elastic plate, can fix whole display module assembly on the base through two sets of bolt fixed orifices.
As an improvement, a heating glass is arranged between the liquid crystal screen and the backlight assembly, and the heating glass is connected with the backlight assembly and the liquid crystal screen at two sides of the heating glass through gluing.
As an improvement, the outer frame is a metal frame with an electromagnetic shielding function, a transparent conductive film is arranged on the display surface of the liquid crystal screen, and the metal frame and the transparent conductive film on the surface of the liquid crystal screen form an electromagnetic shielding layer together.
As an improvement, a transparent protective layer is arranged on the display window of the metal frame, and the transparent conductive film is arranged on the transparent protective layer.
As an improvement, the buckle is an L-shaped metal sheet which is arranged on two sides of the outer frame and can be twisted, and a metal plate for reinforcement is arranged at the contact part of the PCB circuit board and the short side of the L-shaped metal sheet.
As an improvement, the metal plate is provided with a micro gradient, so that when the short side of the L-shaped metal sheet is twisted, the connection between the metal frame and the PCB circuit board has micro pressure.
As an improvement, a notch for leading out a liquid crystal screen flat cable is arranged on one side of the outer frame.
As an improvement, the liquid crystal screen is connected with the PCB through a flat cable.
As an improvement, the bulges on the rubber frame are flush with the height of the liquid crystal screen.
The invention has the beneficial effects that:
the liquid crystal display screen is well protected by the rubber frame, and the non-rigid contact between the outer frame and external equipment or the base is realized by the elastic plate on the outer frame, so that the liquid crystal display screen has a good vibration-proof effect, and meanwhile, the elastic plate and the pins are matched to ensure that the liquid crystal display screen is large in allowance during assembly and installation, easy to align and capable of effectively preventing the pins from being damaged in the bolt fastening process. The invention can not influence the normal use of the liquid crystal screen under the condition of vibration and impact, and also not influence the service life of the liquid crystal screen.
Drawings
FIG. 1 is a schematic diagram showing the overall structure of a display module with anti-vibration function according to the present invention;
FIG. 2 is a schematic view of the front side of the display module with the metal frame removed;
FIG. 3 is a schematic view of the rear side of the present invention with the metal frame removed;
FIG. 4 is a schematic view of a metal frame according to the present invention;
FIG. 5 is a diagram of the mounting position relationship between the metal frame and the PCB of the present invention;
FIG. 6 is a schematic diagram showing the bending and fixing of an L-shaped metal sheet after the metal frame and the PCB are installed;
FIG. 7 is a schematic view of a metal plate structure according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
The LED display panel comprises a 1-PCB circuit board, a 2-liquid crystal screen, a 3-metal frame, a 4-transparent conductive film, a 5-display window, a 6-glue frame, 7-protrusions, 8-L-shaped metal sheets, 9-short sides, 10-long sides, 11-bolt fixing holes, 12-metal plates, 13-flat cables, 14-pins, 15-heating glass, 16-elastic plates, 17-backlight components and 18-notches.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 7, a display module with anti-vibration function, including PCB circuit board 1, heating glass 15, liquid crystal display 2, gluey frame 6, backlight unit 17 and outer frame, gluey frame 6 fixed mounting is on PCB circuit board 1, backlight unit 17 is fixed inside gluey frame 6, and heating glass 15 installs on backlight unit 17, and liquid crystal display 2 installs on heating glass 15, and backlight unit 17, heating glass 15 and liquid crystal display 2 adopt gluing to be fixed, gluey frame 6 side is equipped with protruding 7, and liquid crystal display 2 side is fixed on protruding 7 of gluey frame 6 through gluing, outer frame is for holding the recess type frame of liquid crystal display 2, outer frame passes through the buckle lock and installs on PCB circuit board 1, and outer frame middle part is equipped with the display window 5 that supplies liquid crystal display 2 to show the region to expose, PCB circuit board 1 back is equipped with and is used for installing the 14 of connection, be equipped with bolt fixing hole 11 on the pin on the PCB circuit board 1 of 14 opposite one end, be equipped with elastic plate 16 on the outer frame of 14 opposite one end, be equipped with fixing hole 11 on elastic plate 16 can be fixed whole on the base through two sets of bolt fixing holes 11.
In order to improve the electromagnetic shielding function of the invention, the outer frame is a metal frame 3 with the electromagnetic shielding function, the display surface of the liquid crystal screen 2 is provided with a transparent conductive film 4, and the metal frame 3 and the transparent conductive film 4 on the surface of the liquid crystal screen 2 form an electromagnetic shielding layer together.
In the invention, the outer frame and the PCB circuit board 1 can be connected by various fastening structures, wherein one preferable structure is that the fastening structure is an L-shaped metal sheet 8 which is arranged at two sides of the outer frame and can twist, as shown in fig. 4, the L-shaped metal sheet 8 comprises a long side 10 and a short side 9, as shown in fig. 5 and 6, a metal plate 12 for reinforcement is arranged at the contact position between the PCB circuit board 1 and the short side 9 of the L-shaped metal sheet 8, as shown in fig. 7, the metal plate 12 is provided with a micro gradient, so that when the short side 9 of the L-shaped metal sheet 8 is twisted, the connection between the metal frame 3 and the PCB circuit board 1 has micro pressure.
As shown in fig. 4, a notch 18 for leading out a flat cable 13 of the liquid crystal screen 2 is arranged on one side of the outer frame, and the liquid crystal screen 2 is connected with the PCB circuit board 1 through the flat cable 13.
As a preferred embodiment, as shown in FIG. 3, the protrusions 7 on the rubber frame 6 are level with the liquid crystal screen 2, so that the rubber frame 6 is guaranteed to well protect the backlight assembly 17, the heating glass 15 and the liquid crystal screen 2, well fix the backlight assembly, the heating glass 15 and the liquid crystal screen 2, and meanwhile, the rubber frame can play a role in buffering to prevent the outer frame from excessively pressing the glass assemblies such as the liquid crystal screen 2 and the heating glass 15.
As another embodiment, in order to protect the liquid crystal screen 2, the transparent conductive film 4 may not be disposed on the liquid crystal screen 2, and the transparent protective layer is disposed on the display window 5 of the metal frame 3, where the transparent conductive film 4 is disposed on the transparent protective layer, so that the protective effect on the liquid crystal screen 2 can be improved without disposing the transparent conductive film 4 on the liquid crystal screen 2, or the conductive glass is directly disposed on the display window 5 of the metal frame 3, which not only plays a role in protecting the liquid crystal screen 2, but also plays a role in shielding the liquid crystal screen, and the display window 5 of the metal frame 3 and the metal frame 3 form a complete electromagnetic shielding layer, so that the processing technology can be simplified and the cost can be reduced.
As shown in fig. 3 and fig. 4, the liquid crystal screen 2 is connected with the PCB circuit board 1 through a flat cable 13, the flat cable 13 is led out through a notch 18 formed on one side of the outer frame, and is connected to a circuit interface of the PCB circuit board 1 after being bent.
As a preferred embodiment, a temperature sensor or a thermistor may be provided on the surface of the liquid crystal panel 2, and the heating power of the heating glass 15 may be controlled by the temperature sensor or the thermistor.
In order to achieve the waterproof, oil-proof, and antifouling effects of the printed circuit board, in this embodiment, the front and back surfaces of the printed circuit board are coated with a three-proofing agent, and the three-proofing agent covers the elements on the printed circuit board.
As shown in fig. 5 to 7, when the metal frame 3 is fastened on the PCB circuit board 1, the installation is too loose, the equipment is not firm, the equipment is easy to loosen, the connection of the flat cable 13 is dropped, the liquid crystal screen 2 is damaged due to too tight connection, under the protection of the rubber frame 6, in order to improve the installation firmness of the metal frame 3 and the PCB circuit board 1, the L-shaped metal sheet 8 can be selected as a fastener, a corresponding metal plate 12 is arranged on the PCB circuit board 1, after the L-shaped metal sheet 8 extends from two sides of the PCB circuit board 1 to the back (as shown in fig. 5), the short side 9 of the L-shaped metal sheet 8 is twisted, so that the short side 9 is contacted with the metal plate 12, the metal frame 3 and the PCB circuit board 1 can be fixed together, and if the installation error needs to be removed, the short side 9 of the L-shaped metal sheet 8 can be screwed to two sides of the PCB circuit board 1, and the metal frame 3 can be separated from the PCB circuit board 1.
As shown in fig. 7, in order to improve the connection firmness, the metal plate 12 is provided with a slight gradient, so that when the short side 9 of the L-shaped metal sheet 8 is twisted, the connection between the metal frame 3 and the PCB circuit board 11 is provided with a slight pressure, and the slight pressure can cause the micro deformation of the plastic frame 6 due to the existence of the plastic frame 6, so that the firmness of the metal frame 3 buckled on the PCB circuit board 1 is ensured, and the liquid crystal screen 2 is not damaged.
It should be noted that in the embodiment of the present invention, the liquid crystal screen 2 may be a liquid crystal display, an LED display or an OLED display, and of course, an OLED display may be selected for better display effect and adaptation to severe environments.
In order to facilitate driving the lcd 2, a driving integrated circuit is usually required, in this embodiment, the driving integrated circuit is printed on the back surface of the PCB circuit board 1, the lcd 2 is connected to the driving integrated circuit through a flat cable 13, and the driving integrated circuit is connected to the PCB circuit through the flat cable 13.
In order to facilitate the connection of the display module of the present invention with external equipment or a base and improve the vibration resistance thereof, one end of the back surface of the PCB circuit board 1 is provided with pins 14 for communication connection and bolt holes for fixing, and the metal frame 3 at the end opposite to the pins 14 is provided with an elastic plate 16, and rigid connection of the glass assembly (including the liquid crystal screen 2, the heating glass 15 and the backlight assembly 17) with the external equipment or the base is reduced by the elastic plate 16, thereby greatly improving the vibration resistance of the display module of the present invention.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (4)
1. A display module assembly with antidetonation function, its characterized in that: the liquid crystal display module comprises a PCB circuit board, a liquid crystal screen, a glue frame, a backlight assembly and an outer frame, wherein the glue frame is fixedly arranged on the PCB circuit board, the backlight assembly is fixed inside the glue frame, the liquid crystal screen is arranged on the backlight assembly, the side edge of the glue frame is provided with a bulge, the liquid crystal screen is fixedly arranged on the bulge of the glue frame through gluing, the outer frame is a groove-type frame capable of containing the liquid crystal screen, the outer frame is arranged on the PCB circuit board through buckling, a display window for exposing a display area of the liquid crystal screen is arranged in the middle of the outer frame, pins for mounting connection are arranged on the back of the PCB circuit board, bolt fixing holes are formed in the PCB circuit board at one end of each pin, an elastic plate is arranged on the outer frame at the end opposite to each pin, and the elastic plate is provided with the bolt fixing holes;
the outer frame is a metal frame with an electromagnetic shielding function, a transparent conductive film is arranged on the display surface of the liquid crystal screen, and the metal frame and the transparent conductive film on the surface of the liquid crystal screen form an electromagnetic shielding layer together; a transparent protective layer is arranged on the display window of the metal frame, and the transparent conductive film is arranged on the transparent protective layer;
the buckle is an L-shaped metal sheet which is arranged on two sides of the outer frame and can be twisted, and a metal plate for reinforcement is arranged at the contact part of the PCB circuit board and the short side of the L-shaped metal sheet; the metal plate is provided with a micro gradient, so that when the short side of the L-shaped metal sheet is twisted, micro pressure is arranged between the metal frame and the PCB circuit board;
the bulges on the rubber frame are flush with the height of the liquid crystal screen.
2. The display module assembly of claim 1, wherein: and heating glass is arranged between the liquid crystal screen and the backlight assembly, and the heating glass is connected with the backlight assembly and the liquid crystal screen at two sides of the heating glass through gluing.
3. A display module according to claim 1 or 2, wherein: and a notch for leading out a liquid crystal screen flat cable is arranged on one side of the outer frame.
4. A display module assembly as recited in claim 3, wherein: the liquid crystal display is connected with the PCB through a flat cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910193211.4A CN109765710B (en) | 2019-03-14 | 2019-03-14 | Display module assembly with antidetonation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910193211.4A CN109765710B (en) | 2019-03-14 | 2019-03-14 | Display module assembly with antidetonation function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109765710A CN109765710A (en) | 2019-05-17 |
| CN109765710B true CN109765710B (en) | 2024-03-29 |
Family
ID=66458976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910193211.4A Active CN109765710B (en) | 2019-03-14 | 2019-03-14 | Display module assembly with antidetonation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109765710B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2055474A1 (en) * | 1989-05-31 | 1990-12-01 | Shinpei Ichikawa | Liquid crystal display mounting structure |
| JPH08220515A (en) * | 1995-02-13 | 1996-08-30 | Canon Inc | Liquid crystal display |
| TW200816900A (en) * | 2006-09-29 | 2008-04-01 | Wintek Corp | Display module |
| CN101968580A (en) * | 2010-09-03 | 2011-02-09 | 深圳市华星光电技术有限公司 | Liquid crystal display and fixing method of circuit board thereof |
| CN203350550U (en) * | 2013-05-27 | 2013-12-18 | 六安市晶润光电科技有限公司 | Anti-vibration liquid crystal displayer |
| CN203838441U (en) * | 2014-03-24 | 2014-09-17 | 南京华东电子集团有限公司 | Machine body mounting structure for airborne reinforced LCD |
| CN105629549A (en) * | 2016-01-26 | 2016-06-01 | 武汉华星光电技术有限公司 | Rubber frame, backlight module and display device |
| CN205809490U (en) * | 2016-06-13 | 2016-12-14 | 厦门光莆显示技术有限公司 | A kind of backlight adhesive frame structure |
| CN205809784U (en) * | 2016-06-13 | 2016-12-14 | 厦门光莆显示技术有限公司 | A kind of flat board adhesive frame structure |
| CN206411647U (en) * | 2017-01-09 | 2017-08-15 | 江西亿科光电有限公司 | A kind of capacitive touch screen of anti-electromagnetic wave interference |
| CN209400828U (en) * | 2019-03-14 | 2019-09-17 | 武汉三澍精密科技有限公司 | A kind of display module with function of seismic resistance |
-
2019
- 2019-03-14 CN CN201910193211.4A patent/CN109765710B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2055474A1 (en) * | 1989-05-31 | 1990-12-01 | Shinpei Ichikawa | Liquid crystal display mounting structure |
| JPH08220515A (en) * | 1995-02-13 | 1996-08-30 | Canon Inc | Liquid crystal display |
| TW200816900A (en) * | 2006-09-29 | 2008-04-01 | Wintek Corp | Display module |
| CN101968580A (en) * | 2010-09-03 | 2011-02-09 | 深圳市华星光电技术有限公司 | Liquid crystal display and fixing method of circuit board thereof |
| CN203350550U (en) * | 2013-05-27 | 2013-12-18 | 六安市晶润光电科技有限公司 | Anti-vibration liquid crystal displayer |
| CN203838441U (en) * | 2014-03-24 | 2014-09-17 | 南京华东电子集团有限公司 | Machine body mounting structure for airborne reinforced LCD |
| CN105629549A (en) * | 2016-01-26 | 2016-06-01 | 武汉华星光电技术有限公司 | Rubber frame, backlight module and display device |
| CN205809490U (en) * | 2016-06-13 | 2016-12-14 | 厦门光莆显示技术有限公司 | A kind of backlight adhesive frame structure |
| CN205809784U (en) * | 2016-06-13 | 2016-12-14 | 厦门光莆显示技术有限公司 | A kind of flat board adhesive frame structure |
| CN206411647U (en) * | 2017-01-09 | 2017-08-15 | 江西亿科光电有限公司 | A kind of capacitive touch screen of anti-electromagnetic wave interference |
| CN209400828U (en) * | 2019-03-14 | 2019-09-17 | 武汉三澍精密科技有限公司 | A kind of display module with function of seismic resistance |
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| Publication number | Publication date |
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| CN109765710A (en) | 2019-05-17 |
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