CN106681052A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN106681052A CN106681052A CN201611022015.3A CN201611022015A CN106681052A CN 106681052 A CN106681052 A CN 106681052A CN 201611022015 A CN201611022015 A CN 201611022015A CN 106681052 A CN106681052 A CN 106681052A
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- light
- backlight module
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- plate body
- light source
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- 238000009738 saturating Methods 0.000 claims description 2
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- 239000000463 material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 239000004973 liquid crystal related substance Substances 0.000 description 7
- 230000000007 visual effect Effects 0.000 description 7
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 230000005142 aphototropism Effects 0.000 description 4
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- 238000000576 coating method Methods 0.000 description 3
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a backlight module and a display device, and belongs to the technical field of display. According to the backlight module, the problem that an existing backlight module cannot achieve display of a narrow border and super thin display simultaneously can be solved. In the backlight module, a light source is embedded inside a first lens structure, the first lens structure is arranged in a first surface of a board body, a second lens structure is arranged on a light outputting surface of the board body, and in this way, the first lens structure is combined with the second lens structure: the first lens structure shields the light source point from a front viewing angle and scatters the light of the light source so as to enlarge a light outputting viewing angle, and the second lens structure scatters the light emitted by the board body, so that the light is subjected to scattering for the last time at the second lens structure of the light outputting surface in the board body after refraction so as to improve homogeneity of the light intensity of the light outputting surface. The backlight module light source does not need to occupy a side edge position of the display device, the light cavity height is effectively compressed at the same time, the thickness of the backlight module is reduced to the greatest extent, and thus thin tendency and a narrow edge design are achieved.
Description
Technical field
The invention belongs to display technology field, and in particular to a kind of backlight module and display device.
Background technology
It is backlight liquid crystal display that existing liquid crystal indicator (LCD, Liquid Crystal Display) is most of
Device, it includes display panels and backlight module (backlight module).Display panels itself do not light, and need
To carry out normal show image by the light source that backlight module is provided, therefore, backlight module becomes crucial group of liquid crystal indicator
One of part.
Backlight module can be divided into side entrance back module and down straight aphototropism mode set two according to the difference of light source incidence position
Kind.As shown in figure 1, side entrance back module is typically light source, such as LED lamp bar 12 is arranged at display panels side rear
Back plate edges at, incidence surface of the light that LED lamp bar 12 sends from light guide plate 11 (LGP, Light Guide Plate) side
Into light guide plate 11, project from the exiting surface of light guide plate 11 Jing after diffusion, then area source is formed via blooming piece, to be supplied to
Display panels.As shown in Fig. 2 down straight aphototropism mode set is by backlight such as cathodouminescence fluorescent tube (CCFL, Cold
Cathode Fluorescent Lamp), or the light source 22 (generally point source) such as LED is arranged on the back of the body at liquid crystal panel rear
On plate 23, light forms area source Jing after the homogenization of diffuser plate 21 and is supplied to liquid crystal panel.
Inventor has found that at least there are the following problems in prior art：At present the design of backlight module and process conditions have
Limit, side entrance back module as shown in figure 1, because the position that LED lamp bar 12 occupies side is difficult to accomplish ultra-narrow frame design, together
When be difficult to accomplish oversize and compatible highlighted design；Down straight aphototropism mode set is as shown in Fig. 2 certain optical cavity height need to be reserved
H, increases light mixing distance and cannot realize slimming design.
The content of the invention
The present invention cannot simultaneously realize the problem of narrow frame and ultra-thin display for existing backlight module, there is provided one kind back of the body
Light module and display device.
Solving the technical scheme that adopted of present invention problem is：
A kind of backlight module, including：
The plate body of light-permeable, wherein, the exiting surface of plate body is the second face, with the second face phase
To face be the first face；
The first lens arrangement in the face of plate body first；
The light source being embedded inside first lens arrangement；
The second lens arrangement on the face of plate body second.
Preferably, first lens arrangement includes total reflection lens, and second lens arrangement is included by concavees lens
The meniscuss to be formed are combined with convex lenss.
Preferably, on the direction perpendicular to plate body place face, the section of the total reflection lens is that isosceles are straight
Angle triangle, the face that the hypotenuse of the isosceles right triangle is located parallel to the plate body, the isosceles right triangle
Right angle is arranged compared to the hypotenuse closer to the second face of the plate body；The light source is embedded at the isosceles right triangle
Hypotenuse on.
Preferably, it is described recessed at the right-angled apices position of the recess correspondence isosceles right triangle of the meniscuss
At the right-angle side position of the convex portion correspondence isosceles right triangle of convex lenss.
Preferably, the height of the isosceles right triangle is h1, on the direction perpendicular to plate body place face,
The plate body size is h2, h1：h2Scope be (3-4.5)：5.
Preferably, the light source includes LED, and the LED is provided with reflecting layer away from the side in second face.
Preferably, first lens arrangement includes total reflection lens pillar, is totally reflected in lens pillar per described in bar
Interval is embedded with multiple LEDs.
Preferably, the face of the plate body first is provided with reflector plate away from the side in the second face.
Preferably, the plate body includes light guide plate or diffuser plate, and in the plate body diffusion particle is provided with.
The present invention also provides a kind of display device, including above-mentioned backlight module.
Wherein, the second face of the present invention is the exiting surface of plate body, and the first face is the face relative with the second face.The present invention
The total reflection prism refers to that cross section is the prism of isosceles right triangle.
Light source is embedded inside the first lens arrangement in the backlight module of the present invention, the first lens arrangement is located at into plate body
In first face, the second lens arrangement is set on plate body exiting surface, such first lens arrangement is combined with the second lens arrangement：The
One lens arrangement covers light source point and breaks up and light visual angle to expand the light that goes out of light source from positive angle, and the second lens arrangement dissipates
Penetrate the light of plate body outgoing so that light carries out last after refraction in plate body at the second lens arrangement of exiting surface
Secondary scattering, so as to improve the homogeneity of exiting surface light intensity.The backlight module light source of the present invention need not occupy the side of display device
Position, while being effectively compressed optical cavity height, maximizing reduces the thickness of backlight module, realizes slimming, narrow frame design.This
The backlight module of invention is applied to various display devices.
Description of the drawings
Fig. 1 is the structural representation of existing side entrance back module；
Fig. 2 is the structural representation of existing down straight aphototropism mode set；
Fig. 3 is the structural representation of the backlight module of embodiments of the invention 1；
Fig. 4-6 is the structural representation of the backlight module of embodiments of the invention 2；
Fig. 7 is the structural representation of the backlight module of embodiments of the invention 3；
Fig. 8 is the curve of light distribution figure of the light source of embodiments of the invention 3；
Fig. 9 is the curve of light distribution figure of the backlight module of embodiments of the invention 3；
Figure 10-11 is the picture stimulated design sketch of backlight module of embodiments of the invention 3；
Figure 12 for embodiments of the invention 2 light-source structure schematic diagram；
Figure 13-15 propagates schematic diagram for the light of embodiments of the invention 2；
Wherein, reference is：11st, light guide plate；12nd, LED lamp bar；21st, diffuser plate；22nd, light source；221st, LED；222、
Reflecting layer；31st, plate body；32nd, the first lens arrangement；33rd, the second lens arrangement；34th, reflector plate；35th, printed circuit board (PCB).
Specific embodiment
To make those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings and specific embodiment party
Formula is described in further detail to the present invention.
Embodiment 1：
The present embodiment provides a kind of backlight module, as shown in figure 3, including the plate body 31 of light-permeable, wherein, plate body goes out light
Face is the second face, and the first face is the face relative with the second face.The first lens arrangement 32 is provided with the face of plate body 31 first, and (i.e. first is saturating
Mirror structure 32 is really embedded in plate ladder 31)；Light source 22 is embedded with inside first lens arrangement 32；Second face of plate body 31
On be additionally provided with the second lens arrangement 33.
The backlight module of the present embodiment is combined the first lens arrangement 32 with the second lens arrangement 33, wherein, the first lens
Structure 32 is wrapped up light source 22 to cover light source 22, will the light that sends of light source 22 break up so that light source when watching from positive visual angle
22 points invisible, expands visual angle；Second lens arrangement 33 scatters the light of the outgoing of plate body 31 so that light is passed through in plate body 31
Last time scattering is carried out at the second lens arrangement 33 of exiting surface after refraction, so as to improve the homogeneity of exiting surface light intensity.
The backlight module light source 22 of the present invention need not occupy the lateral location of display device, while it is high to be effectively compressed optical cavity
Degree, maximizing reduces the thickness of backlight module, realizes slimming, narrow frame design.The backlight module is applied to various display and fills
Put.
Embodiment 2：
The present embodiment provides a kind of backlight module, as shown in figure 4, including the plate body 31 of light-permeable, located at plate body 31 first
The first lens arrangement 32 in face；The light source 22 being embedded inside first lens arrangement 32；On the face of plate body 31 second
The second lens arrangement 33.Wherein, the first lens arrangement 32 is total reflection lens, meanwhile, the second lens arrangement 33 is by recessed
Mirror and convex lenss combine the meniscuss to be formed.
The material of plate body 31 can be optical resin material, for example polymethyl methacrylate (PMMA), Merlon
(PC), polystyrene (PS) etc.；The material of the first lens arrangement 32 is also similar optical resin material.It should be noted that
The material of the first lens arrangement 32 can be different, or identical from the refractive index of the material of plate body 31, when the two
When refractive index is different, concrete material can be selected as needed, and there is no particular limitation, but when the two be identical material and
When refractive index is identical, need to form air layer or coating optics liquid optical cement (OCR) in the two contact surface.
Can be seen that with reference to Fig. 2, Fig. 3, Fig. 4 contrast：Show in structure there are design limitations shown in Fig. 2, one need to be reserved
Fixed optical cavity height H, increases light mixing distance to reach the effect of secondary mixed light, while also needing to increase LED number, LED lens
(secondary lens) improve picture homogeneity to cover the lamp shadow of LED itself.
And the present embodiment total reflection lens, Formation cross-section being all-trans for isosceles right triangle on the face of plate body 31 first
Penetrate to be embedded in after lens arrangement, i.e. total reflection lens hypotenuse parcel light source 22 and be arranged in plate body 31, so can hide from positive visual angle
It is in the light 22 points of source so that light that light source 22 sends is loss-free to be directly entered in plate body 31.
Specifically, referring to Figure 13：The light of the adjacent outgoing of light source 22 is incided entirely from the direction in parallel plates place face
One right-angle side of mirror lens (is shown incident from left side i.e. A sides, it is to be understood that the incident light in the right
Propagation condition is similar) face at place when, refraction can occur in total reflection prism and reflect, and in the another of total reflection prism
The face at one right-angle side (right side is B sides) place changes the loss-free generation birefringence in the original direction of propagation of light and penetrates
Go out.
Referring to Figure 14：When the light of the adjacent outgoing of light source 22 enters perpendicular to the right-angle side place face of total reflection prism
It it is 45 ° equivalent to the angle of incidence in ray relative plate body place face when penetrating, light free of losses deflects 90 °, in another right-angle side institute
Reflect in face, also without fiber-loss during this；Other angle light are according to refraction and reflection law in total reflection rib
There is birefringence in another right-angle side place face of mirror.
Additionally, as shown in figure 15, some light of the light source 22 inside total reflection prism is incident from the A sides inclined-plane of prism,
By the operation principle of total reflection prism --- the reflection law and the law of refraction of light, light is propagated when reflecting in same media
Angle of reflection and angle of incidence are equal, and light will not occur what is reflected when inciding another kind of medium by a kind of vertical two media plane of medium
Characteristic, light lossless can reverse 180 °, now can be in the exiting surface of light source 22 or total reflection prism incidence surface (isosceles right angle trigonometry
The base of shape claims hypotenuse) reflecting layer scatter, light is redistributed；And the light of other angles can be in total reflection rib
The right-angle side of mirror is reflected, as shown in figure 4, light carries out birefringence in the exiting surface of plate body 31, so as to realize total reflection
Bridging effect of the prism to the light source 22 of exactly angle, desalinates the halation of 22 points of light source, evades the brightness unevenness that light source 22 brings
Problem.
During the light for sending light source 22 equivalent to the one side of the first lens arrangement 32 can be with lossless importing plate body 31,
Light can be spread out of in the case where the transmission direction of light is constant again simultaneously, so as to increase substantially light extraction efficiency.Meanwhile, from
It can be seen that the structure has been effectively compressed optical cavity height in figure, maximizing reduces the thickness of backlight module.And meniscuss of arranging in pairs or groups
By the light scattering of the outgoing of plate body 31 to all angles, the uniformity of exiting surface light intensity is improved.
Preferably, on the direction perpendicular to the place face of the plate body 31, the section of the total reflection lens is isosceles
Right angled triangle, the face that the hypotenuse of the isosceles right triangle is located parallel to the plate body 31, the isosceles right angle trigonometry
The right angle of shape is arranged compared to the hypotenuse closer to the second face of the plate body 31；It is straight that the light source 22 is embedded at the isosceles
On the hypotenuse of angle.
Preferably, it is described concavo-convex at the square position of the recess correspondence isosceles right triangle of the meniscuss
At the right-angle side position of the convex portion correspondence isosceles right triangle of mirror.
That is, as shown in figure 4, the section of total reflection lens be isosceles right triangle, wherein, isosceles right angle trigonometry
The hypotenuse of shape is located at the bottom of plate body 31, and light source 22 is embedded in its hypotenuse, and so, the light that light source 22 sends is from the straight of total reflection lens
Arm of angle outgoing, equivalent to the center position at the top of the inside right angle of plate body 31 without going out light, so as to by the moon at the position of light source 22
Shadow is covered.It is understood that so just to the plate body 31 at square position go out light compared to right-angle side to go out light weak,
This collocation meniscus will be scattered to just at square position to the light intensity at right-angle side position, and specifically, recess correspondence isosceles are straight
Light is converged at the square position of angle triangle, by light at the right-angle side position of convex portion correspondence isosceles right triangle
Diverging, so as to play a part of to improve exiting surface light intensity uniformity.
Preferably, the light source 22 includes LED 221, and the LED is provided with reflection away from the side in second face
Layer 222.
That is, the point source of LED 221 is adopted in this light source 22, because the light direction of point source itself is four sides
All directions, choose the point source that bottom as shown in figure 12 has reflecting layer 222, it is possible to reduce the light at the first face (i.e. back)
Loss.
Preferably, first lens arrangement 32 includes total reflection lens pillar, per being totally reflected lens pillar described in bar
Interior interval is embedded with multiple LEDs.
That is, as shown in figure 5, the first lens arrangement 32 is the total reflection lens pillar of many strips, it is complete per root
Reflection lens pillar is embedded in multiple light sources 22, is so beneficial to the outgoing light uniformization of multiple light sources 22.Can certainly be such as
Shown in Fig. 6, the total reflection lens that light source 22 is wrapped up are set only at the position of each light source 22, in the side parallel to plate body 31
Upwards, the size of lens can be changed according to being actually needed.
Embodiment 3：
The present embodiment provides a kind of backlight module, and it has the structure similar with the backlight module of embodiment 2, itself and enforcement
The difference of example 2 is, the back side areflexia layer of light source 22, and the face of the plate body 31 first is externally provided with reflector plate 34.
That is, as shown in fig. 7, arranging reflector plate outside the face of plate body 31 first to reduce the light at the first face (i.e. back)
Line loss is lost, and improves the utilization rate of light, strengthens light efficiency.It should be noted that also show in figure for providing letter to light source 22
Number printed circuit board (PCB) 35 (pcb board), usual pcb board located at the lower section of light source 22, the shade of the masking light source 22 being mentioned above
Including the shade of pcb board.
Preferably, the height of the isosceles right triangle is h1, in the direction perpendicular to the place face of the plate body 31
On, the size of the plate body 31 is h2, h1：h2Scope be (3-4.5)：5.Wherein, h is worked as1：h2Scope be (3-4.5)：When 5, can
So that light-out effect is evenly.
Here provides a kind of specific embodiment：
As shown in fig. 7, choosing thickness h2To include what is be spaced apart in the plate body 31 of 2.5mm, the first face (i.e. incidence surface)
The total reflection lens of column, its section be isosceles right triangle, height h1For 2.0mm, equivalent to total reflection lens right angle away from
The distance in the face of plate body 31 second (i.e. exiting surface) be 0.5mm, the hypotenuse embedded with LED light source 22 of total reflection lens.
Commercially available LED PKG7030 are chosen in the present embodiment and illustrates that (other commercially available LED light sources 22 also can reach identical
Effect), the long side direction of LED PKG7030 is parallel with the setting direction of lens pillar.Wherein, the LED PKG7030 light of purchase
Strong distribution curve is as shown in Figure 8, it can be seen that about in 120 °, it is most strong to face angle light intensity, the bigger light in visual angle for its lighting angle
It is strong weaker.
LED PKG7030 are used for after the backlight module of the present embodiment, distribution curve flux is as shown in Figure 9, it can be seen that concavo-convex
Light intensity at the position of correspondence isosceles right triangle right-angle side is scattered to other angles by the convex portion of lens, equivalent to the position
Place's light intensity is relative to be weakened, and overall big visual angle light intensity strengthens, so as to realize improving the effect of exiting surface light intensity uniformity.And pass through
Sunykatuib analyses, the percent reflectivity of the light inside the total reflection prism of the present embodiment is about 15%, and total reflection prism is at two
The percentage rate that right-angle surface occurs refraction accounts for 85%.
Preferably, the plate body 31 includes being provided with diffusion particle in light guide plate or diffuser plate, the plate body 31 or dissipates
Air layer is penetrated, diffusion particle selects optical resin PMMA particles, is dispersed in sheet material as scattering particless or air alveolar layer and respectively sets
Refer between layer, light XIAN when through diffusion layer can constantly in the Propagation that two refractive indexs are different, occur many refractions,
Reflection and the phenomenon of scattering, so as to produce optics diffusion, strengthen the effect of light homogeneity.
Wherein, diffusion particle can cause light further to dissipate, and increase the homogeneity for light.It should be noted that light
Source 22 may be selected from diffuser plate or light guide plate, and Figure 10, Figure 11 are respectively diffuser plate, light guide plate and arrange in pairs or groups respectively the recessed of LED PKG7030
Lens visual simulates effect, it is seen that the structure Picture Showing of light guide plate is micro- better than diffusion board structure, but two kinds of design structures
To meet picture requirement.Specifically, can according to the concrete model of light source 22, light distribution, light guide plate incidence surface scattering netted dot
The different meniscuss of the collocation such as design carry out luminous intensity distribution and obtain optimal matching structure so that the light that sends of LED can be with
In lossless entrance diffuser plate or light guide plate, while and light can be passed to far in the case where the transmission direction of light is constant
End, so as to increase substantially light extraction efficiency.
Preferably, the meniscuss are that heat rolling or coating optical resin are formed on the face of plate body 31 second.
That is, here provides a kind of specific formation meniscuss method, specifically, roll in diffuser plate exiting surface heat
One layer of optical resin raw material of pressure or coating solidify to form meniscus configuration.It is simple and convenient using the method preparation process,
The recess of the meniscuss for obtaining is accurate with the position of convex portion.
Embodiment 4：
The present embodiment provides a kind of display device, including above-mentioned backlight module.The display device can be：Liquid crystal
Show any tool such as panel, Electronic Paper, mobile phone, panel computer, television set, display, notebook computer, DPF, navigator
There are the product or part of display function.
Obviously, also many modifications may be made to for the specific embodiment of the various embodiments described above；For example：First lens arrangement,
The concrete size of two lens arrangements can be selected as needed, space between light sources, h1With h2Size etc. can be carried out as needed
Adjustment.
It is understood that the embodiment of above principle being intended to be merely illustrative of the present and the exemplary enforcement for adopting
Mode, but the invention is not limited in this.For those skilled in the art, in the essence without departing from the present invention
In the case of god and essence, various modifications and improvement can be made, these modifications and improvement are also considered as protection scope of the present invention.
Claims (10)
1. a kind of backlight module, it is characterised in that include：
The plate body of light-permeable, wherein, the exiting surface of plate body is the second face, and the face relative with the second face is the first face；
The first lens arrangement in the face of plate body first；
The light source being embedded inside first lens arrangement；
The second lens arrangement on the face of plate body second.
2. backlight module according to claim 1, it is characterised in that first lens arrangement includes total reflection lens,
Second lens arrangement includes being combined the meniscuss for being formed by concavees lens and convex lenss.
3. backlight module according to claim 2, it is characterised in that on the direction perpendicular to plate body place face,
The section of the total reflection lens is isosceles right triangle, and the hypotenuse of the isosceles right triangle is parallel to the plate body institute
Face, the right angle of the isosceles right triangle is arranged compared to the hypotenuse closer to the second face of the plate body；It is described
Light source is embedded on the hypotenuse of the isosceles right triangle.
4. backlight module according to claim 3, it is characterised in that the recess correspondence isosceles right angle three of the meniscuss
At angular square position, at the right-angle side position of the convex portion correspondence isosceles right triangle of the meniscuss.
5. backlight module according to claim 3, it is characterised in that the height of the isosceles right triangle is h1, hanging down
Directly on the direction in plate body place face, the plate body size is h2, h1：h2Scope be (3-4.5)：5.
6. backlight module according to claim 1, it is characterised in that the light source includes LED, the LED away from
The side in second face is provided with reflecting layer.
7. backlight module according to claim 6, it is characterised in that first lens arrangement includes that total reflection column is saturating
Mirror, per interval in lens pillar is totally reflected described in bar multiple LEDs are embedded with.
8. backlight module according to claim 1, it is characterised in that the face of the plate body first sets away from the side in the second face
There is reflector plate.
9. backlight module according to claim 1, it is characterised in that the plate body includes light guide plate or diffuser plate, described
Diffusion particle is provided with plate body.
10. a kind of display device, it is characterised in that including the backlight module described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022015.3A CN106681052B (en) | 2016-11-16 | 2016-11-16 | A kind of backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022015.3A CN106681052B (en) | 2016-11-16 | 2016-11-16 | A kind of backlight module and display device |
Publications (2)
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| CN108845461A (en) * | 2018-08-31 | 2018-11-20 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN109491008A (en) * | 2019-01-05 | 2019-03-19 | 靖江市永盛光电科技有限公司 | A kind of direct backlight source structure with Integral secondary lens |
| TWI656367B (en) * | 2018-12-12 | 2019-04-11 | 大陸商光寶電子〈廣州〉有限公司 | Optical lens and light source module |
| CN109681792A (en) * | 2017-10-18 | 2019-04-26 | 鸿富锦精密工业（深圳）有限公司 | LED backlight mould group |
| CN110094640A (en) * | 2018-01-27 | 2019-08-06 | 深圳市绎立锐光科技开发有限公司 | Light-source system and lighting device |
| CN110906279A (en) * | 2019-12-26 | 2020-03-24 | 珠海市唯能车灯实业有限公司 | Lens capable of uniformly distributing light |
| CN114217479A (en) * | 2022-02-09 | 2022-03-22 | 深圳创维－Rgb电子有限公司 | Optical assembly, backlight module and display device |
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