CN208207462U - L ED lamp strip structure, straight following formula backlight display module assembly and display - Google Patents
L ED lamp strip structure, straight following formula backlight display module assembly and display Download PDFInfo
- Publication number
- CN208207462U CN208207462U CN201820897936.2U CN201820897936U CN208207462U CN 208207462 U CN208207462 U CN 208207462U CN 201820897936 U CN201820897936 U CN 201820897936U CN 208207462 U CN208207462 U CN 208207462U
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- China
- Prior art keywords
- led
- pwm signal
- circuit board
- shielding layer
- lamp strip
- Prior art date
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- 239000000758 substrate Substances 0.000 claims description 30
- 239000012528 membrane Substances 0.000 claims description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 93
- 230000000694 effects Effects 0.000 description 9
- 239000004593 Epoxy Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
-
- 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
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
- Traffic Control Systems (AREA)
Abstract
the utility model discloses a L ED lamp strip structure, straight following formula backlight display module assembly and display this L ED lamp strip structure, including the backplate, locate the electromagnetic film of backplate top, locate on the backplate and towards the L ED lamp of electromagnetic film, and locate the shielding layer structure between L ED lamp and the electromagnetic film, L ED lamp is including the L ED circuit board that has PWM signal drive circuit layer, and the L ED luminous element of being connected with PWM signal drive circuit layer, and shielding layer structure locates between L ED luminous element and the PWM signal drive circuit layer the utility model provides a technical scheme, reducible even eliminate touch-control mistake and report a little, guarantee touch-control result of use, improve user experience.
Description
Technical field
The utility model relates to LED display device technical fields, more particularly to a kind of LED lamp strip structure, downward back
Light display module and display.
Background technique
In the conventional technology, downward back optical display unit can only be used as display, have a single function.And with input skill
The development of art and display technology, common liquid crystal display and touch device are combined be market development trend.Moreover, city
Field is also higher and higher to the experience requirements of touch-control input, such as increasingly pursues former person's handwriting handwriting input effect, therefore electromagnetic touch
Screen technology is widely applied, and electromagnetic touch screen technology also starts to be applied on downward back optical display unit.And electromagnetic touch
The basic principle of screen is to generate changes of magnetic field with electromagnetic membrane in time writer operating process to differentiate, time writer is for emitting electricity
The signal transmitting terminal (transceiver) of magnetic wave, electromagnetic membrane are the signal reception end (receiver) for receiving electromagnetic wave, work as electromagnetism
Pen changes close to induced flux during electromagnetic membrane, accordingly can operation definition go out the location point of time writer.But
On downward back optical display unit, it is being located at electromagnetic membrane just for connecting the line layer of LED illuminator in the LED circuit board of LED light
Lower section, and LED illuminator generally uses PWM (Pulse Width Modulation, pulse width modulation) letter of external power supply
Number driving, and under certain condition for driving the pwm signal of line layer of LED circuit board can be to the electricity that time writer emits
Magnetic wave generates interference, causes touch-control to report point by mistake, influences the normal use of touch screen, will be greatly reduced user experience.
Utility model content
Based on this, in view of the above-mentioned problems, the utility model provides a kind of LED lamp strip structure, direct-type backlight display module
And display, touch-control wrong report point can be decreased or even eliminated, guarantees touch-control using effect, improves user experience.
Its technical solution is as follows:
A kind of LED lamp strip structure, including backboard, the electromagnetic membrane above the backboard are set on the backboard simultaneously face
To the LED light of the electromagnetic membrane, and the shielding layer structure between the LED light and electromagnetic membrane；
The LED light includes having the LED circuit board of pwm signal driver circuit layer, and drive line with the pwm signal
The LED illuminator of road floor connection, and the shielding layer structure is set between the LED illuminator and pwm signal driver circuit layer.
It, can be to the PWM of external power supply by the way that shielding layer structure is arranged between electromagnetic membrane and the LED circuit board of LED light
After signal is to the pwm signal driver circuit layer power supply of LED circuit board, produced on the pwm signal driver circuit layer of LED circuit board
Pwm signal shielded, it is possible to reduce or even the interference for the electromagnetic wave for avoiding pwm signal from issuing time writer to electromagnetic membrane,
Point is reported by mistake so as to decrease or even eliminate the touch-control of LED lamp strip structure, guarantees touch-control using effect.
Its further technical solution is illustrated below:
Further, the shielding layer structure is integrally provided in the LED circuit board, and the shielding layer structure is set to institute
It states on pwm signal driver circuit layer.
Further, the LED circuit board is set as single layer board, including be set to the backboard on insulated substrate,
The pwm signal driver circuit layer in the insulated substrate, and the institute on the pwm signal driver circuit layer
State shielding layer structure.
Further, the LED circuit board is set as double-layer circuit board, including LED main circuit board, and is stacked at described
Barricade structure on LED main circuit board；
The LED main circuit board is set to the first insulated substrate on the backboard, in first insulated substrate
The pwm signal driver circuit layer；The barricade structure includes the second insulation on the pwm signal driver circuit layer
Base, and the shielding layer structure in second insulated substrate.
Further, the shielding layer structure is set as layers of copper.
Further, the LED lamp strip structure includes multiple LED light on the backboard, each LED light
LED circuit board is provided with the shielding layer structure.
Further, the LED lamp strip structure includes multiple LED light on the backboard, multiple LED light
The shielding layer structure is equipped in LED circuit board jointly.
Further, the shielding layer structure is individually set in the LED circuit board or is individually set to the LED circuit board
Top, and the shielding layer structure is located above the pwm signal driver circuit layer.
In addition, the utility model also proposes a kind of direct-type backlight display module, including LED light bar knot as described above
Structure.
In addition, the utility model also proposes a kind of display, including direct-type backlight display module as described above.
The utility model has the following beneficial effects: by setting shielding layer structure to direct-type backlight display module
The pwm signal driver circuit layer for connecting LED illuminator of LED light is shielded, and pwm signal driving line can be reduced or avoided
Road floor receives the influence of electromagnetic wave under the pwm signal effect of external power supply to electromagnetic membrane, so as to guarantee direct-type backlight
The case where LED lamp strip structure of display module can work normally, and be not in touch-control wrong report point, effect that the user experience is improved
Fruit.
Detailed description of the invention
Fig. 1 is the structural schematic block diagram of LED lamp strip structure described in the utility model；
Fig. 2 is the LED circuit board of LED lamp strip structure and the structure of shielding layer structure described in the utility model one embodiment
Schematic block diagram；
Fig. 3 is the LED circuit board of LED lamp strip structure and the knot of shielding layer structure described in another embodiment of the utility model
Structure schematic block diagram.
Description of symbols:
100- backboard, 200- electromagnetic membrane, 300-LED lamp, 310-LED circuit board, 312- insulated substrate, (314,334)-
Pwm signal driver circuit layer, (316,344)-white oil layer, 320-LED illuminator, 330-LED main circuit board, 332- first insulate
Base, 340- barricade structure, the second insulated substrate of 342-, 400- shielding layer structure.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein each figure
In identical label indicate identical part.The embodiments described below with reference to the accompanying drawings are exemplary, is only used for explaining
The utility model, without being construed as a limitation of the present invention.
As shown in Figure 1, the utility model embodiment proposes a kind of LED lamp strip structure, including backboard 100, it is set to backboard 100
The electromagnetic membrane 200 of top on backboard 100 and towards the LED light of electromagnetic membrane 200 300, and is set to LED light 300 and electromagnetism
Shielding layer structure 400 between film 200.Backboard can provide installation foundation and support for electromagnetic membrane 200, LED light 300, and pass through
Shielding layer structure between LED light 300 and electromagnetic membrane 200 is set, signal shielding can be carried out to LED light, avoid LED light
Signal receives electromagnetic wave to electromagnetic membrane 200 and generates interference.
Specifically, which may be configured as the groove-like structure of both ends tilting, which is arranged in backboard 100
Bottom portion of groove.Moreover, above-mentioned LED light 300 includes having the LED circuit board 310 of pwm signal driver circuit layer, and believe with PWM
The LED illuminator 320 of number driver circuit floor connection, and shielding layer structure be set to LED illuminator and pwm signal driver circuit layer it
Between.It, can be in the LED circuit board 310 after the pwm signal that external power supply issues is powered to the LED circuit board 310 of the LED light 300
Pwm signal driver circuit layer on generate pwm signal, and the pwm signal driver circuit layer of the LED circuit board 310 passes through the PWM
Signal can drive LED illuminator to shine.Moreover, by driving line in electromagnetic membrane 200 and the pwm signal of LED circuit board 310
Shielding layer structure 400 is set between the floor of road, the pwm signal of LED circuit board 310 can be shielded, it is possible to reduce or even keep away
Exempt from the interference for the electromagnetic wave that pwm signal issues time writer to electromagnetic membrane 200, so as to decrease or even eliminate LED light bar knot
The touch-control of structure reports point by mistake, guarantees touch-control using effect.Moreover, as shown in Figure 2 to Figure 3, in some embodiments, above-mentioned shielded layer
Structure 400 can be integrally provided in LED circuit board 310, and shielding layer structure 400 is set on pwm signal driver circuit layer.Passing through will
The setting of shielding layer structure 400 and LED circuit board 310 is integrated, and shielding layer structure 400 is made to be located at the pwm signal of LED circuit board
On driver circuit layer, preferable shield effectiveness can be realized to pwm signal driver circuit layer.
Further, in some embodiments, as shown in Fig. 2, above-mentioned LED circuit board 310 may be configured as single layer board,
Including the insulated substrate 312 being set on backboard 100, pwm signal driver circuit layer 314 in insulated substrate 312 is set to
Above-mentioned shielding layer structure 400 on pwm signal driver circuit layer 314, and the white oil layer being set on shielding layer structure 400
316.In the present embodiment, shielding layer structure 400 and pwm signal driver circuit layer 314 can be arranged on same circuit board, knot
Structure is compact.In addition, the insulated substrate 312 may be configured as FR4 (glass-epoxy copper-clad plate) substrate；In addition, the insulation
Base 312 may be alternatively provided as the composite substrate of aluminum substrate and insulating layer.
In addition, in further embodiments, as shown in figure 3, LED circuit board 310 may be configured as double-layer circuit board, including
LED main circuit board 330, and the barricade structure 340 being stacked on LED main circuit board 330.Shielding layer structure 400 is set
It is set to a layer circuit board structure, to form the barricade structure 340.The barricade structure 340 is folded again and is located at LED main circuit
On plate 330, to form double-layer circuit board structure, the shield effectiveness of this barricade structure 340 is more preferably.Specifically, the main electricity of the LED
Road plate 330 is set to the first insulated substrate 332 on backboard 100, the pwm signal driver circuit in the first insulated substrate 332
Layer 334；And the barricade structure 340 includes the second insulated substrate 342 on the pwm signal driver circuit layer 334, is set to the
Shielding layer structure 400 in two insulated substrates 342, and the white oil layer 344 being set on shielding layer structure 400.In addition, this
Two insulated substrates may be configured as FR4 (glass-epoxy copper-clad plate) substrate；In addition, first insulated substrate may be configured as
FR4 (glass-epoxy copper-clad plate) substrate, may be alternatively provided as the composite substrate of aluminum substrate and insulating layer.
In addition, in some embodiments, above-mentioned LED lamp strip structure includes multiple LED light 300 on backboard 100, often
The LED circuit board 310 of a LED light 300 is provided with above-mentioned shielding layer structure 400.The LED circuit board of i.e. each LED light 300
310 are separately provided an above-mentioned shielding layer structure 400, drive to the pwm signal of the LED circuit board 310 of each LED light 300
Dynamic line layer is individually shielded.
In addition, in further embodiments, above-mentioned LED lamp strip structure includes multiple LED light 300 on backboard 100,
Above-mentioned shielding layer structure 400 is equipped in the LED circuit board 310 of multiple LED light 300 jointly.It can be using one or more
A shielding layer structure 400 simultaneously carries out the pwm signal driver circuit layer of the LED circuit board 310 of multiple or all LED light
Shielding, it is possible to reduce the pwm signal of pwm signal driver circuit layer is leaked from the gap between multiple LED circuit boards.
In addition, in further embodiments, shielding layer structure 400 can individually be set in LED circuit board 310 or individually be set to
310 top of LED circuit board, and shielding layer structure 400 is located above pwm signal driver circuit layer.In the present embodiment, it will shield
Layer structure 400 and LED circuit board 310 are separately configured, so that the setting of shielding layer structure 400 is more flexible.Specifically, should
Shielding layer structure 400 may be disposed in barricade structure, which may include the pwm signal set on LED circuit board 310
Third insulated substrate on driver circuit layer, the shielding layer structure 400 in third insulated substrate, and it is set to shielded layer
White oil layer in structure 400 can form the hardened structure of individual screened circuit with the pwm signal driver circuit to LED circuit board
Layer carries out pwm signal shielding.
Moreover, above-mentioned shielding layer structure 400 may be configured as layers of copper, above-mentioned pwm signal driver circuit layer may be alternatively provided as copper
Layer.Moreover, above-mentioned shielding layer structure 400 can be connect by metal screws with backboard, shielding layer structure 400 is made to form ground connection effect
Fruit has better shield effectiveness.
In addition, the utility model also proposes a kind of direct-type backlight display module, including LED light bar knot as described above
Structure.In addition, the utility model also proposes a kind of display, including direct-type backlight display module as described above.In this way, passing through
Shielding layer structure is set to the pwm signal driver circuit for being used to connect LED illuminator of the LED light of direct-type backlight display module
Layer is shielded, and pwm signal driver circuit layer can be reduced or avoided and receive under the pwm signal effect of external power supply to electromagnetic membrane
The influence of electromagnetic wave is not in so as to guarantee that the LED lamp strip structure of direct-type backlight display module can work normally
The case where touch-control wrong report point, effect that the user experience is improved.
In addition it is also necessary to understand, in the present embodiment, term "lower", "upper", "front", "rear", "left", "right",
"inner", "outside", "top", "bottom", " side ", " other side ", " one end ", " other end ", etc. indicated by positional relationship be based on
Positional relationship shown in the drawings；The terms such as " first ", " second " are to distinguish different structure members.These terms are only
Convenient for description the utility model and simplify description, should not be understood as limiting the present invention.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to the reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of LED lamp strip structure, which is characterized in that including backboard, electromagnetic membrane above the backboard is set to the back
On plate and the LED light towards the electromagnetic membrane, and the shielding layer structure between the LED light and electromagnetic membrane；
The LED light include there is the LED circuit board of pwm signal driver circuit layer, and with the pwm signal driver circuit layer
The LED illuminator of connection, and the shielding layer structure is set between the LED illuminator and pwm signal driver circuit layer.
2. LED lamp strip structure according to claim 1, which is characterized in that the shielding layer structure is integrally provided on the LED
On circuit board, and the shielding layer structure is set on the pwm signal driver circuit layer.
3. LED lamp strip structure according to claim 2, which is characterized in that the LED circuit board is set as single circuit
Plate, including the insulated substrate being set on the backboard, the pwm signal driver circuit layer in the insulated substrate, with
And the shielding layer structure on the pwm signal driver circuit layer.
4. LED lamp strip structure according to claim 2, which is characterized in that the LED circuit board is set as odt circuit
Plate, including LED main circuit board, and the barricade structure being stacked on the LED main circuit board；
The LED main circuit board be set to the backboard on the first insulated substrate, in first insulated substrate described in
Pwm signal driver circuit layer；The barricade structure includes the second insulation base on the pwm signal driver circuit layer
Layer, and the shielding layer structure in second insulated substrate.
5. LED lamp strip structure according to claim 1, which is characterized in that the shielding layer structure is set as layers of copper.
6. LED lamp strip structure described in -5 any one according to claim 1, which is characterized in that the LED lamp strip structure includes
The LED circuit board of multiple LED light on the backboard, each LED light is provided with the shielding layer structure.
7. LED lamp strip structure described in -5 any one according to claim 1, which is characterized in that the LED lamp strip structure includes
Multiple LED light on the backboard are equipped with the shielding layer structure in the LED circuit board of multiple LED light jointly.
8. LED lamp strip structure according to claim 1, which is characterized in that the shielding layer structure is individually set to the LED
On circuit board or individually set on the LED circuit board top, and the shielding layer structure is located at the pwm signal driver circuit layer
Top.
9. a kind of direct-type backlight display module, which is characterized in that including the LED light as described in claim 1-8 any one
Structure.
10. a kind of display, which is characterized in that including direct-type backlight display module as claimed in claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820897936.2U CN208207462U (en) | 2018-06-11 | 2018-06-11 | L ED lamp strip structure, straight following formula backlight display module assembly and display |
| PCT/CN2018/118462 WO2019237670A1 (en) | 2018-06-11 | 2018-11-30 | Led light bar structure, direct-type backlight display module and display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820897936.2U CN208207462U (en) | 2018-06-11 | 2018-06-11 | L ED lamp strip structure, straight following formula backlight display module assembly and display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208207462U true CN208207462U (en) | 2018-12-07 |
Family
ID=64496694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820897936.2U Active CN208207462U (en) | 2018-06-11 | 2018-06-11 | L ED lamp strip structure, straight following formula backlight display module assembly and display |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN208207462U (en) |
| WO (1) | WO2019237670A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2364158B (en) * | 2000-02-18 | 2004-01-07 | Sensei Ltd | Mobile telephone with LCD module with backlight and EMI shielding |
| KR100913307B1 (en) * | 2002-12-12 | 2009-08-26 | 삼성전자주식회사 | Backlight assembly and liquid crystal display device having the same |
| CN2718618Y (en) * | 2003-07-24 | 2005-08-17 | 明基电通股份有限公司 | Portable electronic apparatus |
| TW200732773A (en) * | 2006-02-17 | 2007-09-01 | Au Optronics Corp | Reflective sheet of backlight module |
| KR101535926B1 (en) * | 2008-08-12 | 2015-07-13 | 삼성디스플레이 주식회사 | Light emitting diode backlight assembly and liquid crystal display thereof |
| CN101750799A (en) * | 2010-01-14 | 2010-06-23 | 友达光电股份有限公司 | LCD backlight module |
| TWI448239B (en) * | 2010-03-29 | 2014-08-01 | Au Optronics Corp | Power transmission circuit with emi shielding, lighting module, and a panel display module |
-
2018
- 2018-06-11 CN CN201820897936.2U patent/CN208207462U/en active Active
- 2018-11-30 WO PCT/CN2018/118462 patent/WO2019237670A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019237670A1 (en) | 2019-12-19 |
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