CN207529069U - A kind of backlight - Google Patents
A kind of backlight Download PDFInfo
- Publication number
- CN207529069U CN207529069U CN201720550214.5U CN201720550214U CN207529069U CN 207529069 U CN207529069 U CN 207529069U CN 201720550214 U CN201720550214 U CN 201720550214U CN 207529069 U CN207529069 U CN 207529069U
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- CN
- China
- Prior art keywords
- light
- light source
- guide plate
- shading
- light guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of backlight, the backlight includes bottom plate, reflective membrane, light guide plate, light source board, diffusion barrier, lower bright enhancement film, upper bright enhancement film and photomask；The photomask is surrounded by the first shading glue, the photomask on the same end of the light source board with being additionally provided with shading single side film, the same end of the diffusion barrier and the light source board is equipped with the second shading glue, first shading glue, shading single side film and the second shading glue respectively block the light source at the backlight edge, the backlight is by the way that the distance of the incidence surface of the light guide plate to the light source board is reduced, so that the area increase of the light extraction of the backlight so that the effective area increase of liquid crystal display.
Description
Technical field
The utility model is related to LCD Technology field more particularly to a kind of backlights.
Background technology
Display is component part important in electronic product, and the quality of display directly influences the quality of product, is shown
Show that the good display effect of device can be to the good usage experience of user.Liquid crystal display is since fuselage is thin, power saving, radiationless etc.
It is numerous to be a little widely used.Since the liquid crystal display panel of liquid crystal display does not shine in itself, need to carry by backlight module
The light source of confession shows image.The light-out effect of the backlight module just directly influences the display effect of display.
In the prior art, the light source of back light is larger to the distance between light guide plate, so that the back light
Light-emitting surface on area reduce, influence the experience of user, the manipulation of particularly existing smart mobile phone is essentially all in liquid crystal
It is completed on screen.The effective area of the screen is just very important to the experience of user.But light source is reduced between light guide plate
Distance the liquid crystal display can be caused light leakage phenomena occur.Display is brighter at mobile phone screen light source, influences display effect.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose a kind of backlight with a novel purpose.
To achieve the above object, according to the backlight of the utility model embodiment, the backlight includes：It is bottom plate, reflective
Film, light guide plate, light source board, diffusion barrier, lower bright enhancement film, upper bright enhancement film and photomask；
The reflective membrane is arranged on the bottom plate, and the light guide plate and the light source board are arranged on the reflective membrane,
The light source board is located at the incident side of the incidence surface of the light guide plate, and the diffusion barrier is arranged on the light-emitting surface of the light guide plate
On, the lower bright enhancement film is arranged on the diffusion barrier, and the upper bright enhancement film is arranged on the lower bright enhancement film, the photomask
It is arranged on the upper bright enhancement film；
The light source board is equipped with light source, and the light source enters the light guide plate from the incidence surface, in the light guide plate
Light by the reflective membrane carry out it is anti-uniformly after projected to the end face of one end of the diffusion barrier by the light-emitting surface,
It after the diffusion barrier carries out the light further diffusion uniformly, is projected from the other end of the diffusion barrier, and successively near
Enter the lower bright enhancement film, upper bright enhancement film, the lower bright enhancement film, upper bright enhancement film enter the shading after adding lustre to the light
Film, the photomask are surrounded by the first shading glue, and the photomask on the same end of the light source board with being additionally provided with shading
Single side film, the same end of the diffusion barrier and the light source board are equipped with the second shading glue, first shading glue, shading single side
Film and the second shading glue respectively block the light at the backlight edge.
One embodiment according to the present utility model, the distance of the incidence surface to the light source board add the light source board
The sum of width be less than 1.5mm.
One embodiment according to the present utility model, the width of second shading glue is between 1.5mm to 1.7mm.
The sum of width of one embodiment according to the present utility model, first shading glue and shading single side film is
Between 1.5mm to 1.7mm.
One embodiment according to the present utility model, the first shading glue, shading single side film and the second shading glue are respectively
Black glue.
One embodiment according to the present utility model, the incidence surface of the light guide plate is equipped with continuous V-groove, described
V-groove is vertically arranged along the light guide plate, and the V-groove increases enters light light on the incidence surface
One embodiment according to the present utility model, the spacing between the continuous V-groove are 0.12mm, depth
For 0.03mm.
One embodiment according to the present utility model, the light guide plate light-emitting surface is equipped with continuous semi-circular groove, described
Semi-circular groove is horizontally disposed with along the light guide plate, and the semi-circular groove makes the light on the light-emitting surface vertically project.
One embodiment according to the present utility model, the spacing between the continuous half shape groove are 30.202um, depth
For 2.118um.
One embodiment according to the present utility model, the light guide plate are optics acrylic board.
The utility model embodiment provides a kind of backlight, and the backlight is by by the incidence surface of the light guide plate to institute
The distance for stating light source board is narrowed down to less than 1.5mm, so that the area increase of the light extraction of the backlight so that liquid crystal display
The effective area increase of device.
By first shading glue that is surrounded by the photomask, on the same end of the photomask and the light source board
Shading single side film is additionally provided with, the same end of the diffusion barrier and the light source board is equipped with the second shading glue, first shading
Glue, shading single side film and the second shading glue respectively block the light at the backlight edge, so as to eliminate due to entering light
The strong light in edge that the distance of face to the light source board is reduced and generated, avoids the backlight and light leakage phenomena occurs.Enhancing institute
State the visual effect of liquid crystal display.
Description of the drawings
Fig. 1 is the backlight exploded view that the utility model embodiment provides；
Fig. 2 is the backlight local sectional view that the utility model embodiment provides；
Fig. 3 is another backlight exploded view that the utility model embodiment provides.
Reference numeral：
Bottom plate 101；
Reflective membrane 201；
Light guide plate 301；
Incidence surface 3011；
Light-emitting surface 3012；
V-groove 3013；
Semi-circular groove 3014；
Site 3015；
Light source board 401；
Light source 4011；
Diffusion barrier 501；
Second shading glue 5011；
Lower bright enhancement film 601；
Upper bright enhancement film 701；
Photomask 801；
First shading glue 8011；
Shading single side film 8012.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that the utility model
Limitation.
In the description of the present invention, it is to be appreciated that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instructions such as hour hands ", " counterclockwise " are based on orientation shown in the drawings or position relationship, merely to just
In description the utility model and simplified description rather than instruction or imply that signified device or element must be with specific sides
Position, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature." multiple " are meant that two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the utility model unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the utility model.
With reference to Fig. 1, Fig. 2, Fig. 1 is the backlight exploded view that the utility model embodiment provides.
Fig. 2 is the backlight local sectional view that the utility model embodiment provides.
The backlight include bottom plate 101, reflective membrane 201, light guide plate 301, light source board 401, diffusion barrier 501, under add lustre to
Film 601, upper bright enhancement film 701 and photomask 801.
The reflective membrane 201 is arranged on the bottom plate 101, and the light guide plate 301 and the light source board 401 are arranged on institute
It states on reflective membrane 201, the light source board 401 is located at the incident side of the incidence surface 3011 of the light guide plate 301, the diffusion barrier
501 are arranged on the light-emitting surface 3012 of the light guide plate 301, and the lower bright enhancement film 601 is arranged on the diffusion barrier 501, institute
It states bright enhancement film 701 to be arranged on the lower bright enhancement film 601, the photomask 801 is arranged on the upper bright enhancement film 701.
The light source board 401 is equipped with light source 4011, and the light source 4011 enters the leaded light from the incidence surface 3011
Plate 301, light in the light guide plate 301 by the reflective membrane 201 carry out it is anti-uniformly after penetrated by the light-emitting surface 3012
Go out on the end face of one end to the diffusion barrier 501, it is uniform that the diffusion barrier 501 carries out the light further diffusion
Afterwards, it is projected from the other end of the diffusion barrier 501, and successively closely enters the lower bright enhancement film 601, upper bright enhancement film 701, the lower increasing
Light film 601, upper bright enhancement film 701 enter the photomask 801, the surrounding of the photomask 801 after adding lustre to the light
Equipped with the first shading glue 8011, the photomask 801 on the same end of the light source board 401 with being additionally provided with shading single side film
8012, the same end of the diffusion barrier 501 and the light source board 401 is equipped with the second shading glue 5011, first shading glue
8011st, 8012 and second shading glue 5011 of shading single side film respectively blocks the light at the backlight edge.
Preferably, in the utility model embodiment, the distance of the incidence surface 3011 to the light source board 401 adds
The sum of width of the light source board is less than 1.5mm.
More specifically, the incidence surface 3011 of the light guide plate 301 of the backlight arrives the distance of the light source board 401
It reduces, the light source board 401 is on the incidence surface 3011 and the perimeter of the light guide plate 301 generates strong light, described strong
Light will cause the incidence surface 3011 of the light guide plate 301 nearby to show than many that becomes clear elsewhere.So as to cause the back of the body
There is light leakage phenomena in light source.
First shading glue 8011, shading single side film 8012 and the second shading glue 5011 are respectively to the backlight edge
Light source 4011 blocked, so as to eliminate due to incidence surface 3011 to the light source board 401 distance reduce and generate it is strong
Light avoids the backlight and light leakage phenomena occurs.Enhance the visual effect of the liquid crystal display.
Preferably, in the utility model embodiment, the width of second shading glue 5011 is 1.5mm to 1.7mm
Between.
More specifically, in order to which the strong light is covered, the backlight is avoided light leakage phenomena, second shading occur
The width of glue 5011 is greater than the distance that the incidence surface 3011 arrives the light source board 401.
Preferably, in the utility model embodiment, the width of first shading glue 8011 and shading single side film 8012
The sum of degree is between 1.5mm to 1.7mm.
More specifically, in order to which the strong light is covered, the backlight is avoided light leakage phenomena, first shading occur
The sum of width of glue 8011 and shading single side film 8012 is more than the distance that the incidence surface 3011 arrives the light source board 401.
Preferably, in the utility model embodiment, first shading glue 8011, shading single side film 8012 and second
Shading glue 5011 is respectively black glue.
Refering to Fig. 3, it is illustrated that another backlight exploded view provided for the utility model embodiment.
Further, in the utility model embodiment, the incidence surface 3011 of the light guide plate 301 is equipped with continuous V
Type groove 3013, the V-groove 3013 are vertically arranged along the light guide plate 301, the V-groove 3013 increase it is described enter
Enter light light in smooth surface 3011.
More specifically, phenomenon is lost since the light on the incidence surface 3011 on the light guide plate 301 exists, is
The light on the incidence surface 3011 on the light guide plate 301 is further increased, continuous V is equipped on the incidence surface 3011
Type groove 3013, the V-groove 3013 increase the incidence surface product of the incidence surface 3011, so as to make to enter the light guide plate
Light on 301 further increases, and improves the utilization rate of the light of the light source 4011.
Preferably, in the utility model embodiment, the spacing between the continuous V-groove 3013 is
0.12mm, depth 0.03mm.
Further, in the utility model embodiment, 301 light-emitting surface 3012 of light guide plate is equipped with continuous semi-circular
Groove 3014, the semi-circular groove 3014 is horizontally disposed along the light guide plate 301, and the semi-circular groove 3014 makes described
Light on light-emitting surface 3012 vertically projects.
More specifically, since the reflective membrane 201 of 301 bottom of light guide plate emits to the light on the light-emitting surface 3012
Line has various refraction angles, in order to which the light on the light-emitting surface 3012 is enable vertically to project, and perpendicular to liquid crystal display,
It needs to emit the reflective membrane 201 of 301 bottom of light guide plate to the light on the light-emitting surface 3012 and carries out angle correction, institute
Stating semi-circular groove 3014 makes the light on the light-emitting surface 3012 vertically project.
On the other hand, the continuous semi-circular groove 3014 can enlarging lighting area, so as to increase amount of light.
Optionally, in the utility model embodiment, the groove of other shapes, example can be equipped on the light-emitting surface 3012
Such as：V-groove.
Preferably, in the utility model embodiment, the spacing between the continuous semi-circular groove 3014 is
30.202um depth 2.118um.
Preferably, in the utility model embodiment, the light source 4011 is LED light.
Further, in the utility model embodiment, multiple sites are additionally provided on the shady face of the light guide plate 301
3015, the multiple site 3015, during the light source is injected the light guide plate 301 by the multiple site 3015, portion
Light incident downwards is divided to reflex on the light-emitting surface 3012.
Preferably, in the utility model embodiment, the light guide plate 301 is optics acrylic board.The optics is sub-
Gram force plate has good light transmission.
The utility model embodiment provides a kind of backlight, and the backlight is by by the incidence surface of the light guide plate 301
The distance of 3011 to the light source board 401 is narrowed down to less than 1.5mm, so that the area increase of the light extraction of the backlight,
So that the effective area increase of liquid crystal display.
By first shading glue 8011 that is surrounded by the photomask 801, the photomask 801 and the light source board
It is additionally provided with shading single side film 8012 on 401 the same end, the same end of the diffusion barrier 501 and institute's light source board 401 is equipped with the
Two shading glues 5011, first shading glue 8011, shading single side film 8012 and the second shading glue 5011 are respectively to the backlight
The light at source edge is blocked, so as to eliminate due to the distance of incidence surface 3011 to the light source board 401 narrow down to be less than and
The strong light generated, avoids the backlight and light leakage phenomena occurs.Enhance the visual effect of the liquid crystal display.
Be equipped with continuous V-groove 3013 on the incidence surface 3011, the V-groove 3013 increase it is described enter light
The incidence surface product in face 3011, so as to which the light entered on the light guide plate 301 be made further to increase, improves the light source
The utilization rate of 4011 light.
Continuous semi-circular groove 3014 is equipped on the light-emitting surface 3012, the semi-circular groove 3014 increases institute
The lighting area of light-emitting surface 3011 is stated, so as to which the light entered on the liquid crystal display be made further to increase, improves institute
State the utilization rate of the light of light source 4011.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It is combined in an appropriate manner in any one or more embodiments or example.
Although the embodiment of the utility model has been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it is impossible to be construed as a limitation of the present invention, those of ordinary skill in the art are not departing from the utility model
Principle and objective in the case of above-described embodiment can be changed in the scope of the utility model, change, replace and
Modification.
Claims (10)
1. a kind of backlight, which is characterized in that including：
Bottom plate (101), reflective membrane (201), light guide plate (301), light source board (401), diffusion barrier (501), lower bright enhancement film (601),
Upper bright enhancement film (701) and photomask (801)；
The reflective membrane (201) is arranged on the bottom plate (101), the light guide plate (301) and the light source board (401) setting
On the reflective membrane (201), the light source board (401) positioned at the incidence surface (3011) of the light guide plate (301) incident side,
The diffusion barrier (501) is arranged on the light-emitting surface (3012) of the light guide plate (301), and the lower bright enhancement film (601) is arranged on
On the diffusion barrier (501), the upper bright enhancement film (701) is arranged on the lower bright enhancement film (601), the photomask (801)
It is arranged on the upper bright enhancement film (701)；
The light source board (401) be equipped with light source (4011), the light source (4011) from the incidence surface (3011) enter described in
Light guide plate (301), light in the light guide plate (301) by the reflective membrane (201) carry out it is anti-uniformly after by it is described go out
Smooth surface (3012) is projected on the end face of one end of the diffusion barrier (501), and the diffusion barrier (501) is to the light into traveling
After the diffusion of one step is uniform, projected from the other end of the diffusion barrier (501), and successively closely enter the lower bright enhancement film (601), on
Bright enhancement film (701), the lower bright enhancement film (601), upper bright enhancement film (701) enter the photomask after adding lustre to the light
(801), the photomask (801) is surrounded by the first shading glue (8011), the photomask (801) and the light source board
(401) shading single side film (8012), the diffusion barrier (501) and the same end of institute's light source board (401) are additionally provided on the same end
It is equipped with the second shading glue (5011), the first shading glue of institute (8011), shading single side film (8012) and the second shading glue (5011)
The light at the backlight edge is blocked respectively.
2. backlight according to claim 1, which is characterized in that the incidence surface (3011) to the light source board (401)
Distance be less than 1.5mm plus the sum of width of the light source board.
3. backlight according to claim 1, which is characterized in that the width of second shading glue (5011) is 1.5mm
To between 1.7mm.
4. backlight according to claim 1, which is characterized in that first shading glue (8011) and shading single side film
(8012) the sum of width is between 1.5mm to 1.7mm.
5. backlight according to claim 1, which is characterized in that the first shading glue of institute (8011), shading single side film
(8012) and the second shading glue (5011) is respectively black glue.
6. backlight according to claim 1, which is characterized in that set on the incidence surface (3011) of the light guide plate (301)
There is continuous V-groove (3013), the V-groove (3013) is vertically arranged along the light guide plate (301), the V-type ditch
Slot (3013) increases enters light light on the incidence surface (3011).
7. backlight according to claim 6, which is characterized in that between the continuous V-groove (3013)
Away from for 0.12mm, depth 0.03mm.
8. backlight according to claim 1, which is characterized in that light guide plate (301) light-emitting surface (3012) is equipped with
Continuous semi-circular groove (3014), the semi-circular groove 3014 is horizontally disposed along the light guide plate (301), described semi-circular
Groove (3014) makes the light on the light-emitting surface (3012) vertically project.
9. backlight according to claim 8, which is characterized in that the spacing between the continuous half shape groove is
30.202um depth 2.118um.
10. backlight according to claim 1, which is characterized in that the light guide plate (301) is optics acrylic board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720550214.5U CN207529069U (en) | 2017-05-17 | 2017-05-17 | A kind of backlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720550214.5U CN207529069U (en) | 2017-05-17 | 2017-05-17 | A kind of backlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207529069U true CN207529069U (en) | 2018-06-22 |
Family
ID=62575275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720550214.5U Expired - Fee Related CN207529069U (en) | 2017-05-17 | 2017-05-17 | A kind of backlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207529069U (en) |
-
2017
- 2017-05-17 CN CN201720550214.5U patent/CN207529069U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20200517 |