CN209028377U - Backlight module and intelligent glasses - Google Patents
Backlight module and intelligent glasses Download PDFInfo
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- CN209028377U CN209028377U CN201821579293.3U CN201821579293U CN209028377U CN 209028377 U CN209028377 U CN 209028377U CN 201821579293 U CN201821579293 U CN 201821579293U CN 209028377 U CN209028377 U CN 209028377U
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- backlight
- light guide
- guide plate
- light
- accommodation groove
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Abstract
The utility model discloses a kind of backlight module and intelligent glasses, it is related to display screen technology field, main purpose is to be disposed opposite to each other by double backlights, and provide backlight round about for two sides light guide plate, light mixing problem when double backlight relative exposures is avoided, guarantees the display effect of display screen.The main technical schemes of the utility model are as follows: a kind of backlight module, the backlight module include: the first backlight assembly, including the first backlight and corresponding to the first light guide plate of first backlight；Second backlight assembly, including the second backlight and corresponding to the second light guide plate of second backlight；Wherein, first backlight and second backlight are disposed opposite to each other, first light guide plate is set to side of first backlight far from second backlight, and second light guide plate is set to side of second backlight far from first backlight.The utility model is mainly used for providing backlight for liquid crystal display.
Description
Technical field
The utility model relates to display screen technology field more particularly to a kind of backlight modules and intelligent glasses.
Background technique
With being widely used for liquid crystal display, requirement of the user to liquid crystal display overall performance is higher and higher, wherein
The structure of backlight module is an important factor for influencing liquid crystal display response time and display effect in liquid crystal display.
The backlight module of double back-light liquid crystal display screens includes light guide plate and two groups of backlights for being set to guide-lighting board ends,
Cutting is separated into two parts among light guide plate, can control two groups of back according to two parts light guide plate corresponding liquid crystal flip-flop transition
Whether light source luminescent, realization corresponds to after liquid crystal is totally turned in certain a part of light guide plate provides backlight, avoids light prior to liquid crystal
Distortion caused by overturning, still, since two groups of backlights are set to guide-lighting board ends, light relative exposure will lead to two
Part light guide plate opposing sidewalls leakage of light, causes light mixing problem, influences liquid crystal display display effect.
Utility model content
In view of this, it is by double that the utility model embodiment, which provides a kind of backlight module and intelligent glasses, main purpose,
Backlight is disposed opposite to each other, and provides backlight round about for the light guide plate of two sides, caused when avoiding double backlight relative exposures
Light mixing problem guarantees the display effect of display screen.
In order to achieve the above objectives, the utility model mainly provides the following technical solutions:
On the one hand, the utility model embodiment provides a kind of backlight module, comprising:
First backlight assembly, including the first backlight and corresponding to the first light guide plate of the first backlight；
Second backlight assembly, including the second backlight and corresponding to the second light guide plate of the second backlight；
Wherein, the first backlight and the second backlight are disposed opposite to each other, and the first light guide plate is set to the first backlight far from
The side of two backlights, the second light guide plate are set to side of second backlight far from the first backlight.
Optionally, the first light guide plate and the second light guide plate opposite flank are respectively arranged with the first accommodation groove and the second accommodating
Slot, the first backlight and the second backlight are respectively embedded into the first accommodation groove and the second accommodation groove.
Optionally, the first face of the first light guide plate and the second light guide plate covers display module, and the first accommodation groove and second are held
Set the side that slot is respectively arranged at separate display module in the first light guide plate and the second light guide plate opposing sidewalls.
Optionally, there is gap between the first light guide plate and the second light guide plate.
Optionally, barn door is provided between the first light guide plate and the second light guide plate.
Optionally, the first accommodation groove and the second accommodation groove inner wall are provided with reflecting piece far from display module side.
Optionally, the first accommodation groove and the second accommodating groove sidewall are provided with astigmatism plate.
Optionally, the first light guide plate and the second light guide plate shape specification are identical.
On the other hand, the utility model embodiment provides a kind of intelligent glasses,
Backlight module including such as any of the above-described.
Optionally, comprising: first form and second form opposite with people's eyes, the first form and the second form respectively by
First backlight assembly and the second backlight assembly provide backlight.
A kind of backlight module and intelligent glasses that the utility model embodiment proposes, for being set opposite to each other by double backlights
It sets, and provides backlight round about for the light guide plate of two sides, caused light mixing problem, guarantees when avoiding double backlight relative exposures
The display effect of display screen, in the prior art, the backlight module of double back-light liquid crystal display screens include light guide plate and are set to
Two groups of backlights of guide-lighting board ends, the cutting of light guide plate centre are separated into two parts, can respectively be corresponded to according to two parts light guide plate
Liquid crystal flip-flop transition whether control two groups of backlights and shine, realization corresponds to after liquid crystal is totally turned in certain a part of light guide plate to be mentioned
For backlight, distortion caused by avoiding light from overturning prior to liquid crystal, still, since two groups of backlights are set to light guide plate two
End, light relative exposure will lead to two parts light guide plate opposing sidewalls leakage of light, cause light mixing problem, influence liquid crystal display
Shield display effect.Compared with prior art, in the backlight module that present specification provides, the first backlight and the second backlight phase
Light guide plate is arranged in backlight two sides in back setting, so that the light that the first backlight and the second backlight issue is along the first leaded light
Plate and the second light guide plate are propagated round about, are not had light intersection between the first light guide plate and the second light guide plate, are avoided
Double backlight light mixing problems guarantee display performance.
Detailed description of the invention
Fig. 1 is back light module unit structure schematic diagram in the prior art；
Fig. 2 is a kind of structural schematic diagram of the backlight module provided by the embodiment of the utility model at the first visual angle；
Fig. 3 is a kind of structural schematic diagram of the backlight module provided by the embodiment of the utility model at the second visual angle；
Fig. 4 is that a kind of structure of the backlight module with accommodation groove provided by the embodiment of the utility model at the second visual angle is shown
It is intended to；
Fig. 5 is structure of another backlight module with accommodation groove provided by the embodiment of the utility model at the second visual angle
Schematic diagram；
Fig. 6 is that a kind of structure of the backlight module with reflecting piece provided by the embodiment of the utility model at the second visual angle is shown
It is intended to；
Fig. 7 is a kind of knot of the backlight module that backlight is obliquely installed provided by the embodiment of the utility model at the second visual angle
Structure schematic diagram；
Fig. 8 is a kind of part knot of the backlight module with barn door provided by the embodiment of the utility model at the second visual angle
Structure schematic diagram；
Fig. 9 is a kind of part knot of the backlight module with astigmatism plate provided by the embodiment of the utility model at the second visual angle
Structure schematic diagram；
Figure 10 is a kind of structural schematic diagram of intelligent glasses provided by the embodiment of the utility model.
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy reaching predetermined purpose of utility model and being taken,
Below in conjunction with attached drawing and preferred embodiment, to according to the utility model proposes backlight module and intelligent glasses its specific embodiment parties
Formula, structure, feature and its effect, detailed description is as follows.
In the prior art, due to active matrix organic light emitting diode panel (Active Matrix/Organic Light
Emitting Diode, Amoled) response time is extremely short, is not susceptible to motion blur phenomenon during display screen switching, and it is empty at present
Quasi- reality technology (VR) first choice Amoled, but it is limited by pixel density and source of screen, currently used double backlighting scheme generations
For Amoled, can equally there are lower liquid crystal response time (GTG < 5ms) and higher refresh rate (supporting 120HZ).
Specifically, as shown in Figure 1, being led including two pieces of light guide plates 10 being set side by side at two pieces in display backlight mould group
The opposite both ends of tabula rasa 10 are provided with two groups of backlights 20, and two groups of backlights 20 provide backlight to two pieces of light guide plates 10 respectively.?
In double backlighting schemes, two pieces of light guide plates 10 are covered with glass substrate and liquid crystal layer on one side, when showing picture, glass substrate top electrode
It is deflected line by line, liquid crystal response between the electrode after deflection, when all response finishes the liquid crystal of one piece of light guide plate corresponding position
The corresponding backlight of the light guide plate is opened, when liquid crystal all complete by response, opening another set backlight guarantees that liquid crystal response is complete
Backlight is provided after finishing, avoids light prior to liquid crystal response, while guaranteeing to influence display effect, when realizing shortening liquid crystal response
Between, improve the purpose of refresh rate.However, since two groups of 20 light of backlight are opposite, one group of backlight light, which prolongs its, corresponding is led
When tabula rasa is traveled to other one piece of light guide plate opposite flank, light leakage phenomena can be generated, causes to occur between two pieces of light guide plates 10
Light mixing problem, also, since backlight 20 itself has certain thickness, backlight 20 is set to 10 outside of light guide plate, so that
Backlight module shape is larger, increases the frame size of display screen.
To solve the above problems, as shown in Figure 2 and Figure 3, on the one hand, the utility model embodiment provides a kind of backlight mould
Group, the backlight module include:
First backlight assembly 1, including the first backlight 11 and corresponding to the first light guide plate 12 of the first backlight 11；
Second backlight assembly 2, including the second backlight 21 and corresponding to the second light guide plate 22 of the second backlight 21；
Wherein, the first backlight 11 and the second backlight 21 are disposed opposite to each other, and the first light guide plate 12 is set to the first backlight
11 sides far from the second backlight 21, the second light guide plate 22 are set to one of the second backlight 21 far from the first backlight 11
Side.
Wherein, it is guide-lighting that the light that the first backlight 11 and the second backlight 21 issue prolongs the first light guide plate 12 and second respectively
Plate 22 is propagated, and there are many set-up modes for the first backlight 11 and the second backlight 21, but are both needed to guarantee do not occur light mixing problem, i.e.,
First backlight 11 and 21 light of the second backlight, which prolong after corresponding light guide plate is propagated, needs no intersection.Specifically, as shown in figure 3,
First backlight 11 and the second backlight 21 are disposed opposite to each other, and are shone respectively to opposite both direction, the first light guide plate 12 and the
Two light guide plates 22 are respectively arranged at 21 radiation direction of the first backlight 11 and the second backlight, by taking the first backlight assembly 1 as an example, the
One backlight 11, which emits beam, to be propagated by the side wall of the first light guide plate 12 into the first light guide plate 12, and light is to opposite to each other in the second back
The direction of optical assembly 2 is spread, and light does not face into the second light guide plate 22, is avoided 1 light of the first backlight assembly and is carried on the back to second
The influence of optical assembly 2；Alternatively, the first backlight 11 and the second backlight 21 are placed at an angle, this kind of mode will later
Middle detailed description.The LED strip that first backlight 11 and the second backlight 21 can be constituted for light emitting diode (LED), or
Electroluminescence (Electro Luminescent, EL) or cathode fluorescent tube (Cold Cathode Fluorescent
Lamp, CCFL).First light guide plate 12 and the second light guide plate 22 can be various shapes, such as can be rectangular light guide plate, or
Semicircle light guide plate, since backlight module is usually used in such as VR intelligent glasses field, to guarantee the best visual effect, first is guide-lighting
Plate 12 is identical with 22 shape specification of the second light guide plate.
A kind of backlight module that the utility model embodiment proposes, for being disposed opposite to each other by pair backlights, and to opposite
Direction provides backlight for light guide plate, avoids leading to the light mixing problem at light guide plate relative position when double backlight relative exposures, guarantee
The display effect of display screen, in the prior art, the backlight module of double back-light liquid crystal display screens include light guide plate and are set to
Two groups of backlights of guide-lighting board ends, the cutting of light guide plate centre are separated into two parts, can respectively be corresponded to according to two parts light guide plate
Liquid crystal flip-flop transition whether control two groups of backlights and shine, realization corresponds to after liquid crystal is totally turned in certain a part of light guide plate to be mentioned
For backlight, distortion caused by avoiding light from overturning prior to liquid crystal, still, since two groups of backlights are set to light guide plate two
End, light relative exposure will lead to two parts light guide plate opposing sidewalls leakage of light, cause light mixing problem, influence liquid crystal display
Shield display effect.Compared with prior art, in the backlight module that present specification provides, the first backlight and the second backlight phase
Light guide plate is arranged in backlight two sides in back setting, so that the light that the first backlight and the second backlight issue is along the first leaded light
Plate and the second light guide plate are propagated round about, are not had light intersection between the first light guide plate and the second light guide plate, are avoided
Double backlight light mixing problems guarantee display performance.
First light guide plate 12 and the open and flat setting arranged side by side of the second light guide plate 22, the first backlight 11 and the second backlight 21 are located at
It, can be there are many set-up mode, as shown in figure 3, the first light guide plate 12 and the between first light guide plate 12 and the second light guide plate 22
Two light guide plates 22 include relatively parallel side wall, and the first backlight 11 and the second backlight 21 are respectively arranged at the first light guide plate 12
Between 22 opposing sidewalls of the second light guide plate, and the first backlight 11 and the second backlight 21 are led with the first light guide plate 12 and second
22 side wall of tabula rasa has gap, so that having light intake on entire first light guide plate 12 and entire second light guide plate 22.However, by
There is certain thickness in the first backlight 11 and the second backlight 21 itself, will lead to the first light guide plate 12 and the second light guide plate 22
Between distance it is excessive, will lead to when as backlight module and occur the filaments of sun among display screen, therefore, as shown in figure 4, being set for another kind
Mode is set, the first light guide plate 12 and 22 opposite flank of the second light guide plate are respectively arranged with the first accommodation groove 121 and the second accommodation groove
221, the first backlight 11 and the second backlight 21 are respectively embedded into the first accommodation groove 121 and the second accommodation groove 221, due to first
Backlight 11 and the second backlight 21 have biggish light emitting angle, and some light can be in the first accommodation groove 121 and the second accommodating
It is propagated in the side wall of slot 221, compensates for the first backlight 11 and the second backlight 21 is placed on backlight module caused by middle position
The darker problem in middle section.Meanwhile no matter how the first backlight 11 and the second backlight 21 are arranged, first will not be occupied
Therefore light guide plate 12 and the second light guide plate 22 other side wall spaces in addition to opposing sidewalls are based on 11 He of the first backlight
Second backlight 21 is set to the scheme between the first light guide plate 12 and the second light guide plate 22, and it is guide-lighting can to prolong first be set side by side
Plate 12 and 22 edge of the second light guide plate are laid with frame, greatly reduce seal ring thickness, ensure that the aesthetics of display screen appearance.
As shown in figure 5, the first face of the first light guide plate 12 and the second light guide plate 22 covers display module 3, the first light guide plate
12 and second backlight as display module of light guide plate 22 and the first backlight 11 and the second backlight 21, display module 3 wrap
Include glass substrate, optical diaphragm and liquid crystal material etc..It is front to cover display module on one side, to further increase the first backlight
Front light intensity at 21 position of source 11 and the second backlight avoids the display screen middle part filaments of sun from generating, 121 He of the first accommodation groove
Second accommodation groove 221 is respectively arranged at one far from display module 3 in 22 opposing sidewalls of the first light guide plate 12 and the second light guide plate
Side.This setup increases the thickness of the first accommodation groove 121 and the positive side cell wall of the second accommodation groove 221, increases the
One backlight 11 and 21 light of the second backlight to display module 3 communication space so that light is before reaching display module 3
It propagates sufficiently, avoids the middle part filaments of sun.Specifically, the first accommodation groove 121 and the second accommodation groove 221 include being located at the first leaded light
First in 22 opposing sidewalls of plate 12 and the second light guide plate is open and is away from positioned at the first light guide plate 12 and the second light guide plate 22
Second opening of 3 one side of display module, the first opening and the second opening connection, so that the first backlight 11 and the second backlight 21
Far from display module 3.Further, as shown in fig. 6, to improve the bright of the first light guide plate 12 and 22 relative position of the second light guide plate
Degree, the first accommodation groove 121 and 221 inner wall of the second accommodation groove are provided with reflecting piece 4 far from display module side, and reflecting piece 4 is by the
One backlight 11 and 21 directive of the second backlight are reflected into the first accommodation groove 121 and second far from the light of display module 3 and accommodate
It is propagated in the positive side cell wall of slot 221, increases the first backlight 11 and second on the first light guide plate 12 and the second light guide plate 22
The brightness at position is arranged in backlight 21, in the first accommodation groove 121 and the second accommodation groove 221 without the side far from display module 3
When wall, reflecting piece 4 covers the second opening of the first accommodation groove 121 and the second accommodation groove 221.
Further to avoid the display screen middle part filaments of sun from generating, the first backlight 11 and the second backlight 21 can be in certain
Angle is placed, as shown in fig. 7, the first backlight 11 and the second backlight 21 are set to the first accommodation groove 121 and the second accommodation groove
In 221, and the first backlight 11 and 21 luminous point of the second backlight are slightly deflected to 3 side of display module.Common LED point light source is each
The light emitting anger of luminous point is 120 °, and the first backlight 11 and the second backlight 21 are deflected to, and guarantees the first accommodation groove 121 and the
Two accommodation grooves 221 are leaned on far from 3 side opening edge edge of display module and the first light guide plate 12 and 22 opposing sidewalls of the second light guide plate
Nearly 3 edge of display module can fully ensure that the first light guide plate 12 and the in the light emitting angle of each luminous point of LED point light source
Two light guide plates 22 are in 3 one side of display module by sufficient uniform light.
As shown in figure 8, there is gap 5 between the first light guide plate 12 and the second light guide plate 22, gap 5 ensure that the first light guide plate
12 and second between light guide plate 22 will not light mixing, specifically, gap is arranged between the first light guide plate 12 and the second light guide plate 22
There is barn door 6, so that the first backlight assembly 1 and the second backlight assembly 2 are individual backlight assembly.
First backlight 11 and the second backlight 21 are set in the first accommodation groove 121 and the second accommodation groove 221, can be reduced
Display screen frame width guarantees display screen portability, if the first backlight 11 and the second backlight 21 and the first accommodation groove 121
It is remote with 221 distance from bottom of the second accommodation groove, it will lead to the first accommodation groove 121 and the second accommodation groove 221 be too deep, display screen middle part
Partial volume is also easy to produce the filaments of sun, if the first backlight 11 and the second backlight 21 and 221 bottom of the first accommodation groove 121 and the second accommodation groove
Portion's distance is close, and since the first backlight 11 and the second backlight 21 are point light source, the light of LED can not be before entering light guide plate
Uniform mixed light causes the first light guide plate 12 and 22 incident side of the second light guide plate the phenomenon that brightness unevenness occur, therefore, such as Fig. 9 institute
Show, be provided with astigmatism plate 7 between the first light guide plate 12 and the second light guide plate 22 and the first backlight 11 and the second backlight 21,
Specifically, astigmatism plate 7 is covered in side wall and the bottom of the first accommodation groove 121 and the second accommodation groove 221, astigmatism plate 7 is carried on the back first
The backlight that light source 11 and the second backlight 21 issue is transferred in the first light guide plate 12 and the second light guide plate 22 after being scattered and passes
It is defeated, make 22 incident side even light mixing of the first light guide plate 12 and the second light guide plate, while guaranteeing that display screen is not in the filaments of sun,
Avoid the first light guide plate 12 and the phenomenon that the second light guide plate 22 enters light brightness unevenness.
On the other hand, the utility model embodiment provides a kind of intelligent glasses,
Backlight module including such as any of the above-described.
A kind of intelligent glasses that the utility model embodiment proposes, for being disposed opposite to each other by pair backlights, and to opposite
Direction provides backlight for light guide plate, avoids leading to the light mixing problem at light guide plate relative position when double backlight relative exposures, guarantee
The display effect of display screen, in the prior art, the backlight module of double back-light liquid crystal display screens include light guide plate and are set to
Two groups of backlights of guide-lighting board ends, the cutting of light guide plate centre are separated into two parts, can respectively be corresponded to according to two parts light guide plate
Liquid crystal flip-flop transition whether control two groups of backlights and shine, realization corresponds to after liquid crystal is totally turned in certain a part of light guide plate to be mentioned
For backlight, distortion caused by avoiding light from overturning prior to liquid crystal, still, since two groups of backlights are set to light guide plate two
End, light relative exposure will lead to two parts light guide plate opposing sidewalls leakage of light, cause light mixing problem, influence liquid crystal display
Shield display effect.Compared with prior art, in the backlight module that present specification provides, the first backlight and the second backlight phase
Light guide plate is arranged in backlight two sides in back setting, so that the light that the first backlight and the second backlight issue is along the first leaded light
Plate and the second light guide plate are propagated round about, are not had light intersection between the first light guide plate and the second light guide plate, are avoided
Double backlight light mixing problems guarantee display performance.
Specifically, as shown in Figure 10, intelligent glasses include first form 81 and second form 82 opposite with people's eyes, the
One form 81 and the second form 82 provide backlight by the first backlight assembly 1 and the second backlight assembly 2 respectively.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of backlight module characterized by comprising
First backlight assembly, including the first backlight and corresponding to the first light guide plate of first backlight；
Second backlight assembly, including the second backlight and corresponding to the second light guide plate of second backlight；
Wherein, first backlight and second backlight are disposed opposite to each other, and first light guide plate is set to described first
Side of the backlight far from second backlight, second light guide plate are set to second backlight far from described first
The side of backlight.
2. backlight module according to claim 1, which is characterized in that
First light guide plate and second light guide plate opposite flank are respectively arranged with the first accommodation groove and the second accommodation groove, institute
It states the first backlight and second backlight is respectively embedded into first accommodation groove and second accommodation groove.
3. backlight module according to claim 2, which is characterized in that
First face of first light guide plate and second light guide plate covers display module, first accommodation groove and described the
Two accommodation grooves are respectively arranged in first light guide plate and the second light guide plate opposing sidewalls far from the display module
Side.
4. backlight module according to claim 3, which is characterized in that
There is gap between first light guide plate and second light guide plate.
5. backlight module according to claim 4, which is characterized in that
Barn door is provided between first light guide plate and second light guide plate.
6. backlight module according to claim 5, which is characterized in that
First accommodation groove and the second accommodation groove inner wall are provided with reflecting piece far from the display module side.
7. backlight module according to claim 6, which is characterized in that
First accommodation groove and the second accommodating groove sidewall are provided with astigmatism plate.
8. backlight module according to claim 1, which is characterized in that
First light guide plate is identical with the second light guide plate shape specification.
9. a kind of intelligent glasses, which is characterized in that
Including such as above-mentioned backlight module of any of claims 1-8.
10. intelligent glasses according to claim 9 characterized by comprising
First form and second form opposite with people's eyes, first form and second form are respectively by described first
Backlight assembly and second backlight assembly provide backlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821579293.3U CN209028377U (en) | 2018-09-26 | 2018-09-26 | Backlight module and intelligent glasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821579293.3U CN209028377U (en) | 2018-09-26 | 2018-09-26 | Backlight module and intelligent glasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209028377U true CN209028377U (en) | 2019-06-25 |
Family
ID=66904975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821579293.3U Active CN209028377U (en) | 2018-09-26 | 2018-09-26 | Backlight module and intelligent glasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209028377U (en) |
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2018
- 2018-09-26 CN CN201821579293.3U patent/CN209028377U/en active Active
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