CN208334843U - LED backlight, large-size screen monitors touch control display device and infrared touch control display device - Google Patents
LED backlight, large-size screen monitors touch control display device and infrared touch control display device Download PDFInfo
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- CN208334843U CN208334843U CN201820621528.4U CN201820621528U CN208334843U CN 208334843 U CN208334843 U CN 208334843U CN 201820621528 U CN201820621528 U CN 201820621528U CN 208334843 U CN208334843 U CN 208334843U
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- touch control
- backlight
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Abstract
The utility model relates to a kind of LED backlight, including multiple LED light bars and backboard, the LED light bar includes multiple LED light and printed circuit board, and the multiple LED light is electrically connected with the printed circuit board；The multiple LED light bar is pasted on the side of the backboard.By adhering to backlight item in backlight, the processing technology of mould group bottom plate thread mill drilling, backlight the turn of the screw is eliminated, the risk because of neglected loading of screw caused by LED backlight item is too long will not be generated.Meanwhile by setting suitable LED spacing, it is not required to additionally mounted cooling mechanism, while meeting heat dissipation performance requirement, backlight effect also complies with requirement.
Description
Technical field
The utility model relates to technical field of liquid crystal display, and in particular to a kind of LED backlight, large-size screen monitors touch control display device
With infrared touch control display device.
Background technique
A kind of light source of the LED as novel environment friendly is used in display backlight, in general illumination more and more widely.
Inside liquid crystal display or LCD TV, it is assembled with backlight module, is used to be supplied to liquid crystal display panel uniform luminance point
The area source of cloth.
The LED light bar multipurpose screw in liquid crystal display on the market is fixed on backboard at present, as shown in Fig. 1, and two
The space D 1 of adjacent LED is usually 20mm.Fig. 2 is the partial enlarged view of Fig. 1, it is seen then that the prior art uses screw 501 by LED
Lamp bar is fixed on backboard.And LED light source array is at work, because electric energy is converted into the inefficient of luminous energy, can produce
Raw a large amount of thermal energy, such structure needs additionally mounted cooling mechanism, when needing biggish screen size, needs to be mounted
LED light bar size increases, while the quantity of the screw quantity and cooling mechanism used increases, and it is de- to increase neglected loading of screw, screw
The risks such as fall, and working hour needed for processing increases, and increases processing cost.
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of LED back
Light source overcomes the prior art to use the defects of at high cost caused by screw and cooling mechanism, processing is cumbersome, neglected loading of screw falls off.
The technical scheme adopted by the utility model to solve the technical problem is as follows: providing a kind of LED backlight, including multiple
LED light bar and backboard, the LED light bar include multiple LED light and printed circuit board, and the multiple LED light and the printing are electric
The electrical connection of road plate；The multiple LED light bar is pasted on the side of the backboard.
The power of the LED light be more than or equal to 1 watt and be less than or equal to 2 watts, the multiple LED light bar two-by-two spacing be greater than etc.
In 550 millimeters and it is less than or equal to 650 millimeters, spacing is more than or equal to 550 millis to multiple LED lamps in one LED light bar two-by-two
Rice and be less than or equal to 650 millimeters.
The power of the LED light is 1 watt, and spacing is more than or equal to 350 millimeters and is less than or equal to the multiple LED light bar two-by-two
650 millimeters, spacing is more than or equal to 350 millimeters and is less than or equal to 650 millis multiple LED light in one LED light bar two-by-two
Rice.
The power of the LED light is 2 watts, and spacing is more than or equal to 550 millimeters and is less than or equal to the multiple LED light bar two-by-two
650 millimeters, spacing is more than or equal to 550 millimeters and is less than or equal to 650 millis multiple LED light in one LED light bar two-by-two
Rice.
Spacing is 600 millimeters to the multiple LED light bar two-by-two, multiple LED lamps in one LED light bar two-by-two between
Away from being 600 millimeters.
The printed circuit board is metal base printed circuit board.
The utility model also provides a kind of large-size screen monitors touch control display device, sequentially includes: glass cover-plate, touch control film, liquid crystal surface
Plate, the LED backlight of the utility model, mainboard, frame, glass cover-plate side is as touch interface；Touch control film side passes through light
Glue is learned to be bonded entirely with the other side of the glass cover-plate；It is pasted entirely by the other side of silica gel and the touch control film liquid crystal display panel side
It closes；LED backlight includes backboard and multiple LED light bars, and the LED light bar is pasted on the backboard towards the liquid crystal display panel
Side；Mainboard is set to the other side of the backboard, and the touch control film is connect with the mainboard, the outside for being sensed
Operation is responded in the large-size screen monitors touch control display device；The touch-control of the glass cover-plate, touch control film and liquid crystal display panel composition
Screen is pasted on the side of the frame, and the backboard is fixed in the frame.
The thickness of silica gel between the touch control film and the liquid crystal display panel is more than or equal to 0.4 millimeter and is less than or equal to 2 millimeters.
The large-size screen monitors touch control display device further includes rear shell, and the rear shell is set to the other side of the frame, and with institute
It states frame and/or the backlight is fixedly connected.
The utility model also provides a kind of infrared touch control display device, including glass cover-plate, infrared induction mould group, liquid crystal surface
Plate, the LED backlight of the utility model, mainboard, frame, glass cover-plate side is as touch interface；The setting of infrared induction mould group
Positive surrounding in the glass cover-plate side；Liquid crystal display panel side is bonded entirely with the other side of the glass cover-plate；LED backlight
Source includes backboard and multiple LED light bars, and the LED light bar is pasted on the backboard towards the side of the liquid crystal display panel；Mainboard
The other side of the backboard is set, and the infrared induction mould group is connect with the mainboard, the external behaviour for being sensed
Work is responded in the infrared touch control display device；The touch screen of the glass cover-plate and liquid crystal display panel composition is fixed on institute
It states in frame, the backboard is also secured in the frame.
The backlight is also used as the rear shell of the infrared touch control display device.
The beneficial effects of the utility model are, are improved to be glued to back by the backlight item for needing screw to install original
On tabula rasa, to eliminate the processing technology of mould group bottom plate thread mill drilling, backlight the turn of the screw, it will not generate because LED is carried on the back
The risk of neglected loading of screw caused by striation is too long.Meanwhile by setting suitable LED spacing, it is not required to additionally mounted heat dissipation machine
Structure, while meeting heat dissipation performance requirement, backlight effect also complies with requirement.Reduce manpower and cost of material, backboard process
It can reduce, reduce mold opening cost, increase the aesthetic appearance of backboard.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the LED backlight schematic diagram of the prior art；
Fig. 2 is the partial enlargement diagram of LED backlight described in Fig. 1；
Fig. 3 is the LED backlight schematic diagram of an embodiment of the present invention；
Fig. 4 is the partial enlargement diagram of LED backlight described in Fig. 3；
Fig. 5 is the explosive view of an embodiment of the present invention large-size screen monitors touch control display device；
Figure label meaning:
100-LED lamp bar, 200- backboard, 101-LED, 102- printed circuit board, 300- adhesive glue, 1- glass cover-plate, 2-
Touch control film, 3- liquid crystal display panel, 4- frame, 5- backlight, 6- mainboard, 7- rear shell.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in figure 3, being the schematic diagram of the LED backlight of an embodiment of the present invention, including LED lamp bar 100 and back
Plate 200, LED light bar 100 include multiple LED 101 and printed circuit board 102, and LED 101 is electrically connected with printed circuit board 102,
Wherein, LED light bar 100 and backboard 200 pass through bonding glue.In this embodiment, backboard 200 can be LED backlight
Backlight.
In a specific embodiment, the product that can be used has similar characteristic with glue pastes fixed LED lamp bar.By
In LED light bar 100 and backboard 200 by bonding glue, do not need using screw in the prior art, will not generate because
The risk of neglected loading of screw caused by LED light bar is too long, simplifies processing program.
In one embodiment, the LED that power bracket is more than or equal to 1 watt and is less than or equal to 2 watts can be selected, at this point, adjacent
LED space D 2 be more than or equal to 550 millimeters and be less than or equal to 650 millimeters, and adjacent LED lamp bar space D 3 also greater than be equal to 500
Millimeter and it is less than or equal to 650 millimeters, by setting suitable LED spacing, is not required to additionally mounted cooling mechanism, radiates meeting
While performance requirement, backlight effect also complies with requirement.In general, the temperature rise specification of LED backlight is no more than 40 degrees Celsius.
As preferred embodiment, LED power is 1 watt-hour, and adjacent LED space D 2 is more than or equal to 350 millimeters and small
In be equal to 650 millimeters, adjacent LED light bar space D 3 also greater than be equal to 350 millimeters and be less than or equal to 650 millimeters, at this point it is possible to
Guarantee fine thermal diffusivity, and makes backlight effect best.
Table 1 is that LED power is 1 watt, is 600 millimeters in the space D 3 of adjacent LED light bar, electric current is 300 milliamperes, environment
When temperature is 25 degrees Celsius, the correlation data of heat dissipation effect and picture effect when LED space D 2 changes, it can be seen that work as LED
When space D 2 is 350 millimeters to 650 millimeters, the temperature rise of LED meets the requirements, while picture effect is also satisfactory, and leads to
Often, temperature rise specification is no more than 40 degrees Celsius.When LED spacing is less than 350 millimeters, although picture effect is up to standard, LED
Temperature rise increase with the reduction of spacing, this is not able to satisfy radiating requirements clearly.And when LED spacing is greater than 650 millimeters
When, although heat dissipation performance is improved, picture effect but goes wrong, and when LED spacing is 900 millimeters, judges picture
Effect is undesirable.
Table 1
As preferred embodiment, LED power is 2 watt-hours, and adjacent LED space D 2 is more than or equal to 550 millimeters and small
In be equal to 650 millimeters, adjacent LED light bar space D 3 also greater than be equal to 550 millimeters and be less than or equal to 650 millimeters, at this point it is possible to
Guarantee fine thermal diffusivity, and makes backlight effect best.
Table 2 is that LED power is 2 watts, is 600 millimeters in the space D 3 of adjacent LED light bar, electric current is 600 milliamperes, environment
When temperature is 25 degrees Celsius, the correlation data of heat dissipation effect and picture effect when LED space D 2 changes, it can be seen that work as LED
When space D 2 is 550 millimeters, the temperature rise of LED just meets the requirements, while picture effect is also satisfactory, in general, temperature rise
Specification is no more than 40 degrees Celsius.When LED space D 2 is 600 millimeters, the temperature rise of LED is relatively low, while picture effect
It is satisfactory.And when LED spacing is less than 550 millimeters, although picture effect is up to standard, the temperature rise of LED is with spacing
Reduction sharply increases, this is not able to satisfy radiating requirements clearly.And when LED spacing is greater than 650 millimeters, although heat dissipation performance
Improved, but picture effect but goes wrong, and when LED spacing is 900 millimeters, judges that picture effect is undesirable.
Table 2
As preferred embodiment, 1 watt is more than or equal to for power bracket and is less than or equal to 2 watts of LED, it is adjacent
LED space D 2 is 600 millimeters, and adjacent LED light bar space D 3 is also 600 millimeters, at this point, LED spacing is most suitable, is not required to another
Outer installation cooling mechanism, while meeting heat dissipation performance requirement, backlight effect also complies with requirement, reduce manpower and raw material at
This, backboard process can be reduced, and reduced mold opening cost, increased the aesthetic appearance of backboard.
In one embodiment, printed circuit board 102 can be used metal base printed circuit board (MCPCB), Metal Substrate printing
Original printed circuit board is affixed on the better metal of another thermal conduction effect by circuit board, can improve circuit board level
Heat dissipation the heat sinking function of LED backlight can further improve using metal base printed circuit board.
The LED backlight of the utility model can be direct-light-type backlight, be also possible to side-edge type backlight, this is practical new
Type does not limit.
Fig. 4 is the partial enlarged view of LED backlight shown in Fig. 3, LED light bar 101 and backboard 102 by bonding glue,
And adjacent LED lamp spacing is more than or equal to 550 millimeters and is less than or equal to 650 millimeters, two adjacent LED light bar spacing are also greater than being equal to
550 millimeters and it is less than or equal to 650 millimeters, is not needing the fixed LED light bar of screw, while avoiding the risk of neglected loading of screw, no
It needs that cooling mechanism additionally is arranged.Manpower and cost of material are reduced, backboard process can be reduced, and reduce mold opening cost, be increased
The aesthetic appearance of backboard.
As preferred embodiment, adjacent LED lamp spacing is 600 millimeters, and two adjacent LED light bar spacing are also 600 millis
Rice, while guaranteeing heat dissipation effect, provides best LED backlight effect.
The utility model also provides a kind of large-size screen monitors touch control display device, and Fig. 5 is the large-size screen monitors touch control display device of an embodiment
Explosive view, including glass cover-plate 1, touch control film 2, liquid crystal display panel 3, frame 4, backlight 5, mainboard 6, rear shell 7.
The side of glass cover-plate 1 is used as touch interface, and as user provides the interface interacted with large-size screen monitors touch control display device,
Tempered glass can be used in a specific embodiment as glass cover-plate 1.
The side of touch control film 2 is bonded with glass cover-plate 1 by optical cement entirely, and the other side of touch control film 2 passes through silica gel and liquid
Crystal panel 3 is bonded entirely, and the full fitting refers to that the contact surface for the two sides being bonded to each other has filled colloid, without gap, in general,
The surface area of glass cover-plate 1 is greater than the surface area of touch control film 2, and the surface area of touch control film 2 is greater than the surface area of display component 3.?
In specific embodiment, touch control film 2 can be nanometer touch film or capacitance touching control film.
Backlight 5 uses the LED backlight of the utility model, including backboard and multiple LED light bars, lamp bar to be pasted on backboard
Towards the side of liquid crystal display panel, the other side of backlight 6 is arranged in mainboard 6, and touch control film 2 is electrically connected with mainboard 6, senses
Peripheral operation responded in large-size screen monitors touch control display device, glass cover-plate 1, touch control film 2, liquid crystal display panel 3 are bonded entirely
Touch screen be pasted onto the side of frame 4, backlight 5 is fixed in frame 4.
In one embodiment, in order to guarantee heat dissipation performance, while guaranteeing that backlight effect is up to standard, optional power is greater than etc.
Back light in 1 watt and less than or equal to 2 watts of LED as backlight 5, at this point, multiple LED light bars two-by-two spacing greater than etc.
In 550 millimeters and be less than or equal to 650 millimeters, multiple LED light in a LED light bar two-by-two spacing be more than or equal to 550 millimeters and
Less than or equal to 650 millimeters.
As preferred embodiment, spacing may be set to 600 millimeters to multiple LED light bars two-by-two, in a LED light bar
Multiple LED light spacing is again set at 600 millimeters two-by-two, while guaranteeing heat dissipation effect, provide best LED backlight
Effect.
Equally, as preferred embodiment, LED power is 1 watt-hour, and adjacent LED space D 2 is more than or equal to 350 millimeters
And be less than or equal to 650 millimeters, adjacent LED light bar space D 3 also greater than be equal to 350 millimeters and be less than or equal to 650 millimeters, this
When, it is ensured that fine thermal diffusivity, and make backlight effect best.LED power is 2 watt-hours, and adjacent LED space D 2 is greater than
Equal to 550 millimeters and it is less than or equal to 650 millimeters, adjacent LED light bar space D 3 550 millimeters and is less than or equal to also greater than being equal to
650 millimeters, at this point it is possible to guarantee fine thermal diffusivity, and make backlight effect best.
In one embodiment, the usage amount of the silica gel between touch control film 2 and liquid crystal display panel 3 can precompute, according to complete
The size and coating thickness of fitting calculate the amount of used silica gel.The difference of glue consumption, the thickness that will lead to silica gel is different, is
Meets the needs of touch-control and display effect, the thickness of silica gel should be greater than being equal to 0.4 millimeter and be less than or equal to 2 millimeters, be less than
At 0.4 millimeter, touch-control effect can be had an impact.
As preferred embodiment, the full thickness for being bonded silica gel between touch control film 2 and liquid crystal display panel 3 can be more than or equal to
0.4 millimeter and be less than or equal to 1 millimeter, at this point, touch-control effect and display effect are optimal.
In one embodiment, large-size screen monitors touch control display device can also include rear shell 7, and rear shell 7 is fixed at frame 4
The other side.In a specific embodiment, rear shell 7 can be fixedly attached in frame 4 and/or backlight 5 by plate muscle or bolt.
The utility model also provides a kind of infrared touch control display device, different from Fig. 5 to be, infrared touch control display device packet
Infrared induction mould group is included, does not include touch control film, glass cover-plate is arranged in as touch interface side in the infrared induction mould group
Positive surrounding is connect with the mainboard, and the peripheral operation sensed is rung in the infrared touch control display device
It answers.
In one embodiment, in order to guarantee heat dissipation performance, while guaranteeing that backlight effect is up to standard, optional power is greater than etc.
Back light in 1 watt and less than or equal to 2 watts of LED as backlight 5, at this point, multiple LED light bars two-by-two spacing greater than etc.
In 550 millimeters and be less than or equal to 650 millimeters, multiple LED light in a LED light bar two-by-two spacing be more than or equal to 550 millimeters and
Less than or equal to 650 millimeters.
As preferred embodiment, spacing may be set to 600 millimeters to multiple LED light bars two-by-two, in a LED light bar
Multiple LED light spacing is again set at 600 millimeters two-by-two, can also be aobvious for infrared touch-control while guaranteeing heat dissipation effect
Show that equipment provides best LED backlight effect.
Equally, as preferred embodiment, LED power is 1 watt-hour, and adjacent LED space D 2 is more than or equal to 350 millimeters
And be less than or equal to 650 millimeters, adjacent LED light bar space D 3 also greater than be equal to 350 millimeters and be less than or equal to 650 millimeters, this
When, it is ensured that fine thermal diffusivity, and make backlight effect best.LED power is 2 watt-hours, and adjacent LED space D 2 is greater than
Equal to 550 millimeters and it is less than or equal to 650 millimeters, adjacent LED light bar space D 3 550 millimeters and is less than or equal to also greater than being equal to
650 millimeters, at this point it is possible to guarantee fine thermal diffusivity, and make backlight effect best.
In one embodiment, backlight can be using bracket as the rear shell of infrared touch control display device, that is, infrared touch-control
It shows that equipment can not include rear shell 7 as shown in Figure 5, reduces the costs such as raw material and die sinking.At this point, backlight places mainboard
Position can be covered by lid once, to guarantee the beauty of infrared touch control display device.
It should be understood that above embodiments are only to illustrate the technical solution of the utility model, it is rather than its limitations, right
For those skilled in the art, it can modify to technical solution illustrated in the above embodiments, or to part of skill
Art feature is equivalently replaced；And all such modifications and replacement, it all should belong to the protection of the appended claims for the utility model
Range.
Claims (11)
1. a kind of LED backlight, which is characterized in that including multiple LED light bars and backboard,
The LED light bar includes multiple LED light and printed circuit board, and the multiple LED light is electrically connected with the printed circuit board；
The multiple LED light bar is pasted on the side of the backboard.
2. LED backlight as described in claim 1, which is characterized in that the power of the LED light is more than or equal to 1 watt and is less than
Equal to 2 watts, spacing is more than or equal to 550 millimeters and is less than or equal to 650 millimeters the multiple LED light bar two-by-two, one LED light
Spacing is more than or equal to 550 millimeters and is less than or equal to 650 millimeters multiple LED light on item two-by-two.
3. LED backlight as described in claim 1, which is characterized in that the power of the LED light is 1 watt, the multiple LED
Spacing is more than or equal to 350 millimeters and less than or equal to 650 millimeter lamp bar two-by-two, and multiple LED light in one LED light bar are two-by-two
Spacing is more than or equal to 350 millimeters and is less than or equal to 650 millimeters.
4. LED backlight as described in claim 1, which is characterized in that the power of the LED light is 2 watts, the multiple LED
Spacing is more than or equal to 550 millimeters and less than or equal to 650 millimeter lamp bar two-by-two, and multiple LED light in one LED light bar are two-by-two
Spacing is more than or equal to 550 millimeters and is less than or equal to 650 millimeters.
5. LED backlight as described in claim 1, which is characterized in that spacing is 600 millimeters to the multiple LED light bar two-by-two,
Spacing is 600 millimeters to multiple LED light in one LED light bar two-by-two.
6. LED backlight as described in claim 1, which is characterized in that the printed circuit board is metal base printed circuit board.
7. a kind of large-size screen monitors touch control display device, which is characterized in that sequentially include:
Glass cover-plate, one side is as touch interface；
Touch control film, one side are bonded by optical cement with the other side of the glass cover-plate entirely；
Liquid crystal display panel, one side are bonded by silica gel with the other side of the touch control film entirely；
Such as LED backlight as claimed in any one of claims 1 to 6 comprising backboard and multiple LED light bars, the LED light bar are viscous
The backboard is affixed on towards the side of the liquid crystal display panel；
Mainboard is set to the other side of the backboard, and the touch control film is connect with the mainboard, the outside for being sensed
Operation is responded in the large-size screen monitors touch control display device；
The touch screen of frame, the glass cover-plate, touch control film and liquid crystal display panel composition is pasted on the side of the frame, the back
Plate is fixed in the frame.
8. large-size screen monitors touch control display device as claimed in claim 7, which is characterized in that between the touch control film and the liquid crystal display panel
Silica gel thickness be more than or equal to 0.4 millimeter and be less than or equal to 2 millimeters.
9. large-size screen monitors touch control display device as claimed in claim 7, which is characterized in that further include rear shell, the rear shell is set to
The other side of the frame, and be fixedly connected with the frame and/or the backlight.
10. a kind of infrared touch control display device characterized by comprising
Glass cover-plate, one side is as touch interface；
The positive surrounding of the glass cover-plate side is arranged in infrared induction mould group；
Liquid crystal display panel, one side are bonded entirely with the other side of the glass cover-plate；
Such as LED backlight as claimed in any one of claims 1 to 6 comprising backboard and multiple LED light bars, the LED light bar are viscous
The backboard is affixed on towards the side of the liquid crystal display panel；
The other side of the backboard is arranged in mainboard, and the infrared induction mould group is connect with the mainboard, for being sensed
Peripheral operation responded in the infrared touch control display device；
The touch screen of frame, the glass cover-plate and liquid crystal display panel composition is fixed in the frame, and the backboard is also secured at
In the frame.
11. infrared touch control display device as claimed in claim 10, which is characterized in that the backlight is also used as described infrared
The rear shell of touch control display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820621528.4U CN208334843U (en) | 2018-04-27 | 2018-04-27 | LED backlight, large-size screen monitors touch control display device and infrared touch control display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820621528.4U CN208334843U (en) | 2018-04-27 | 2018-04-27 | LED backlight, large-size screen monitors touch control display device and infrared touch control display device |
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| Publication Number | Publication Date |
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| CN208334843U true CN208334843U (en) | 2019-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113296309A (en) * | 2020-02-24 | 2021-08-24 | 海信视像科技股份有限公司 | Display device |
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2018
- 2018-04-27 CN CN201820621528.4U patent/CN208334843U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113296309A (en) * | 2020-02-24 | 2021-08-24 | 海信视像科技股份有限公司 | Display device |
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