CN102707464B - Liquid crystal panel backlight bracket with electromagnetic shielding function and liquid crystal display device - Google Patents
Liquid crystal panel backlight bracket with electromagnetic shielding function and liquid crystal display device Download PDFInfo
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- CN102707464B CN102707464B CN201210167865.8A CN201210167865A CN102707464B CN 102707464 B CN102707464 B CN 102707464B CN 201210167865 A CN201210167865 A CN 201210167865A CN 102707464 B CN102707464 B CN 102707464B
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- backlight
- liquid crystal
- crystal board
- support
- board
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 75
- 239000000463 material Substances 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 230000004308 accommodation Effects 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a liquid crystal panel backlight bracket with an electromagnetic shielding function and a liquid crystal display device, wherein the liquid crystal panel backlight bracket comprises a light-permeable outer frame bracket and a backlight plate, the backlight plate divides the outer frame bracket into a front frame bracket and a rear frame bracket, an LED backlight source is arranged at the bottom of the backlight plate, the front surface and the back surface of the backlight plate are both rough surfaces for diffuse reflection, a metal film layer for reflecting light is plated on the back surface of the backlight plate, and the liquid crystal panel is fixed on the front surface of the backlight plate; the peripheral surface of the inner side connected with the outer frame bracket and the backlight plate is adhered with a reflecting film; the main circuit board of the liquid crystal board is fixed on the back frame support, the conductive shielding layer is plated around the inside of the back frame support, and the electromagnetic shielding cover is formed on the upper portion of the main circuit board on the back of the backlight board and the periphery of the inside of the back frame support plated with the shielding layer. The invention can meet the requirement of electromagnetic compatibility of electronic equipment by the shielding of the electromagnetic shielding cover formed by the liquid crystal panel backlight bracket.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly relate to a kind of liquid crystal board backlight support and the display device with electro-magnetic screen function.
Background technology
Summary of the invention
The technical problem to be solved in the present invention is to provide the defect of installing radome space to circuit board in prior art because the mounting bracket inner space of liquid crystal display is limited, provides a kind of liquid crystal board backlight support can with electro-magnetic screen function.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of liquid crystal board backlight support with electro-magnetic screen function is provided, for fixing liquid crystal board, comprise the outer gimbal support of light-permeable, the inside of described outer gimbal support is provided with backlight, described outer gimbal support is divided into front frame bracket and rear frame bracket by described backlight, described LED backlight is fixed on described outer gimbal support, and be positioned at bottom described backlight, the front and back of described backlight is for irreflexive hair side, be coated with the metallic diaphragm for reflected light at the back side of described backlight, described liquid crystal board is fixed on the front of described backlight; The inner side surrounded surface that described outer gimbal support is connected with described backlight posts reflectance coating;
The main circuit board of liquid crystal board is fixed on described rear frame bracket, and the inside circumference of described rear frame bracket is coated with the screen layer of conduction, and the back side of described backlight forms an electro-magnetic shielding cover with the after-frame internal stent surrounding being coated with screen layer above described main circuit board.
In liquid crystal board backlight support of the present invention, the surrounded surface that described outer gimbal support contacts with the main circuit board of described liquid crystal board is also coated with the screen layer of conduction.
In liquid crystal board backlight support of the present invention, described screen layer is identical with the material of described metallic diaphragm.
In liquid crystal board backlight support of the present invention, described metallic diaphragm is silver film.
In liquid crystal board backlight support of the present invention, the both sides of the edge in the front of described backlight are provided with the double faced adhesive tape for fixing described liquid crystal board.
In liquid crystal board backlight support of the present invention, described rear frame bracket is provided with the buckle for fixing described main circuit board.
In liquid crystal board backlight support of the present invention, bottom described backlight, be provided with the accommodation space for placing described LED backlight.
The present invention solves another technical scheme that its technical matters adopts:
A kind of liquid crystal indicator is provided, the main circuit board comprising liquid crystal board and be connected with liquid crystal board, it is characterized in that, described liquid crystal board and described main circuit board are all fixed on having on the liquid crystal board backlight support of electro-magnetic screen function according to any one of claim 1-7.
The beneficial effect implementing the present invention's generation is: the present invention is coated with the metallic diaphragm for reflected light by the backlight back side on liquid crystal board backlight support, the inside circumference of frame bracket is coated with the screen layer of conduction in the rear, the back side of described backlight forms an electro-magnetic shielding cover with the after-frame internal stent surrounding being coated with screen layer above described main circuit board, thus avoid the element of internal main circuit board to the overproof electromagnetic wave of external radiation, interference not by external electromagnetic waves simultaneously when ensureing that inner member normally works, meets the requirement of electronic equipment electromagnetic compatibility.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the front perspective view that LED backlight do not installed by liquid crystal board backlight support that the embodiment of the present invention has an electro-magnetic screen function;
Fig. 2 is the back side perspective view that LED backlight do not installed by liquid crystal board backlight support that the embodiment of the present invention has an electro-magnetic screen function;
Fig. 3 is the front view that the embodiment of the present invention has the liquid crystal board backlight support of electro-magnetic screen function;
Fig. 4 is the rear view that the embodiment of the present invention has the liquid crystal board backlight support of electro-magnetic screen function;
Fig. 5 is the LED group structural representation of embodiment of the present invention LED backlight.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, the embodiment of the present invention has the liquid crystal board backlight support of electro-magnetic screen function, for fixing liquid crystal board, comprises the outer gimbal support 1 of light-permeable, the material of outer gimbal support 1 is the good material of light conductivity, as PMMA(polymethylmethacrylate), PC(polycarbonate) etc.The inside of outer gimbal support 1 is provided with backlight 2, outer gimbal support 1 is divided into front frame bracket and rear frame bracket by backlight 2, as shown in Figure 2, LED backlight 3 is fixed on outer gimbal support 1, and being positioned at the bottom of backlight 2, backlight 2 and LED backlight 3 are combined as liquid crystal board provides soft uniform backlight.
The front and back of backlight 2 is for irreflexive hair side, can arrange the lines being beneficial to light refraction, arrange the lines being beneficial to light reflection at the back side of backlight 2 in the front of backlight 2.Be coated with the metallic diaphragm for reflected light at the back side of backlight 2, liquid crystal board is fixed on the front of backlight 2; The inner side surrounded surface that outer gimbal support 1 is connected with 1 backlight 2 posts reflectance coating, and light is all reflexed in backlight 2 as far as possible.
The main circuit board (not shown) of liquid crystal board is fixed on rear frame bracket, and the inside circumference of rear frame bracket is coated with the screen layer of conduction, and dash area is as shown in Figure 2 screen layer.The back side due to backlight 2 is coated with the metallic diaphragm for reflected light, then the back side of backlight 2 forms an electro-magnetic shielding cover with the after-frame internal stent surrounding being coated with screen layer above main circuit board, thus avoid the element of internal main circuit board to the overproof electromagnetic wave of external radiation, interference not by external electromagnetic waves simultaneously when ensureing that inner member normally works, meets the requirement of electronic equipment electromagnetic compatibility.
In one embodiment of the invention, in order to form electro-magnetic shielding cover better, the surrounded surface that can contact with the main circuit board of liquid crystal board at outer gimbal support 1 is also coated with the screen layer of conduction.
In one embodiment of the invention, for the ease of once electroplating, same plated material can be used to electroplate and to form screen layer and metallic diaphragm, even if screen layer is identical with the material of metallic diaphragm.Can prioritizing selection silver as plated material, its reflecting effect is better, and namely metallic diaphragm and screen layer are silver film.
Because liquid crystal board is thinner and easily friction is impaired, as shown in Figure 3, double faced adhesive tape 4 can be provided with in the both sides of the edge in the front of backlight, for fixing liquid crystal board, in installation and use procedure, all not easily make liquid crystal board move generation cut like this.Former frame support can certainly arrange multiple clamping part to fasten liquid crystal board, or the slot for inserting liquid crystal board is set.
As shown in Figure 4, rear frame bracket is provided with the buckle 5 for fixing main circuit board, can also arrange the multiple screws 6 for assembling liquid crystal indicator back cover in addition on rear frame bracket.
In one embodiment of the invention, the accommodation space for placing LED backlight 3 is provided with bottom backlight 2.As shown in Figure 5, LED backlight 3 comprises lamp plate 31, and lamp plate 31 is provided with the pad 312 for source of welding current positive and negative lead wires, and multiple LED 311.
The main circuit board that the liquid crystal indicator of the embodiment of the present invention comprises liquid crystal board and is connected with liquid crystal board, wherein liquid crystal board and main circuit board are all fixed on having on the liquid crystal board backlight support of electro-magnetic screen function described by foregoing embodiments, are not repeated herein.The liquid crystal indicator with the liquid crystal board backlight support of electro-magnetic screen function can shield the interference of extraneous hash to inner main circuit board well, also inner member can be prevented to the overproof electromagnetic wave of external radiation simultaneously, to meet the requirement of electromagnetic compatibility, and the liquid crystal board backlight supporting structure of the embodiment of the present invention is simple, facilitates the assembling of liquid crystal indicator.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (8)
1. one kind has the liquid crystal board backlight support of electro-magnetic screen function, for fixing liquid crystal board, comprise the outer gimbal support (1) of light-permeable, the inside of described outer gimbal support (1) is provided with backlight (2), described outer gimbal support (1) is divided into front frame bracket and rear frame bracket by described backlight (2), LED backlight (3) is fixed on described outer gimbal support (1), and be positioned at the bottom of described backlight (2), it is characterized in that
The front and back of described backlight (2) is for irreflexive hair side, the lines being beneficial to light refraction is set in the front of described backlight, the lines being beneficial to light reflection is set at the back side of backlight, be coated with the metallic diaphragm for reflected light at the back side of described backlight (2), described liquid crystal board is fixed on the front of described backlight (2); The inner side surrounded surface that described outer gimbal support (1) is connected with described backlight (2) posts reflectance coating; The main circuit board of liquid crystal board is fixed on described rear frame bracket, the inside circumference of described rear frame bracket is coated with the screen layer of conduction, and the back side of described backlight (2) forms an electro-magnetic shielding cover with the after-frame internal stent surrounding being coated with screen layer above described main circuit board.
2. liquid crystal board backlight support according to claim 1, is characterized in that, the surrounded surface that described outer gimbal support (1) contacts with the main circuit board of described liquid crystal board is also coated with the screen layer of conduction.
3. liquid crystal board backlight support according to claim 2, it is characterized in that, described screen layer is identical with the material of described metallic diaphragm.
4. liquid crystal board backlight support according to claim 3, is characterized in that, described metallic diaphragm is silver film.
5. liquid crystal board backlight support according to claim 4, is characterized in that, the both sides of the edge in the front of described backlight (2) are provided with the double faced adhesive tape (4) for fixing described liquid crystal board.
6. liquid crystal board backlight support according to claim 4, is characterized in that, described rear frame bracket is provided with the buckle (5) for fixing described main circuit board.
7. liquid crystal board backlight support according to claim 4, is characterized in that, described backlight (2) bottom is provided with the accommodation space for placing described LED backlight (3).
8. a liquid crystal indicator, the main circuit board comprising liquid crystal board and be connected with liquid crystal board, is characterized in that, also comprise: the liquid crystal board backlight support with electro-magnetic screen function according to any one of claim 1-7; Described liquid crystal board and described main circuit board are all fixed on having on the liquid crystal board backlight support of electro-magnetic screen function according to any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210167865.8A CN102707464B (en) | 2012-05-28 | 2012-05-28 | Liquid crystal panel backlight bracket with electromagnetic shielding function and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210167865.8A CN102707464B (en) | 2012-05-28 | 2012-05-28 | Liquid crystal panel backlight bracket with electromagnetic shielding function and liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102707464A CN102707464A (en) | 2012-10-03 |
| CN102707464B true CN102707464B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210167865.8A Active CN102707464B (en) | 2012-05-28 | 2012-05-28 | Liquid crystal panel backlight bracket with electromagnetic shielding function and liquid crystal display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102707464B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103873616B (en) * | 2014-03-06 | 2016-03-09 | 京东方科技集团股份有限公司 | A kind of display module, device for mobile communication |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201629107U (en) * | 2009-12-24 | 2010-11-10 | 太瀚科技股份有限公司 | Assembly structure for display and digital board module |
| CN101909381A (en) * | 2009-06-03 | 2010-12-08 | 三星电机株式会社 | Supply module and display apparatus |
| WO2012014601A1 (en) * | 2010-07-29 | 2012-02-02 | シャープ株式会社 | Illumination apparatus, display apparatus, and television receiver apparatus |
| CN102385821A (en) * | 2011-11-18 | 2012-03-21 | 深圳市华星光电技术有限公司 | Flat display device, stereo display device and plasma display device |
| CN102392972A (en) * | 2011-11-18 | 2012-03-28 | 深圳市华星光电技术有限公司 | Reflecting plate and backlight system |
| CN202583641U (en) * | 2012-05-28 | 2012-12-05 | 深圳市联祥瑞实业有限公司 | Liquid crystal board backlight support with electromagnetic shielding function and liquid crystal display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8400607B2 (en) * | 2005-10-11 | 2013-03-19 | Barco N.V. | Display assemblies and methods of display |
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2012
- 2012-05-28 CN CN201210167865.8A patent/CN102707464B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101909381A (en) * | 2009-06-03 | 2010-12-08 | 三星电机株式会社 | Supply module and display apparatus |
| CN201629107U (en) * | 2009-12-24 | 2010-11-10 | 太瀚科技股份有限公司 | Assembly structure for display and digital board module |
| WO2012014601A1 (en) * | 2010-07-29 | 2012-02-02 | シャープ株式会社 | Illumination apparatus, display apparatus, and television receiver apparatus |
| CN102385821A (en) * | 2011-11-18 | 2012-03-21 | 深圳市华星光电技术有限公司 | Flat display device, stereo display device and plasma display device |
| CN102392972A (en) * | 2011-11-18 | 2012-03-28 | 深圳市华星光电技术有限公司 | Reflecting plate and backlight system |
| CN202583641U (en) * | 2012-05-28 | 2012-12-05 | 深圳市联祥瑞实业有限公司 | Liquid crystal board backlight support with electromagnetic shielding function and liquid crystal display device |
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| Publication number | Publication date |
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| CN102707464A (en) | 2012-10-03 |
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