CN204459922U - Backlight illumination assembly, liquid crystal indicator and electronic equipment - Google Patents
Backlight illumination assembly, liquid crystal indicator and electronic equipment Download PDFInfo
- Publication number
- CN204459922U CN204459922U CN201420680215.8U CN201420680215U CN204459922U CN 204459922 U CN204459922 U CN 204459922U CN 201420680215 U CN201420680215 U CN 201420680215U CN 204459922 U CN204459922 U CN 204459922U
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- Prior art keywords
- illumination assembly
- backlight illumination
- blooming piece
- guide plate
- optical diaphragm
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Abstract
The utility model provides a kind of backlight illumination assembly, liquid crystal indicator and electronic equipment, and this backlight illumination assembly comprises: the light guide plate with incidence surface and exiting surface; Be arranged on the optical diaphragm group on the exiting surface of described light guide plate, the undermost blooming piece of described optical diaphragm group has the first extension extended towards the incidence surface of described light guide plate; The cushion block that described first extension is arranged; And cover the light shielding part at least partially of blooming piece of the superiors of described optical diaphragm group, it is characterized in that, described backlight illumination assembly also has diaphragm, and described diaphragm is arranged between described light shielding part and described cushion block.According to backlight illumination assembly of the present utility model, the wrinkling possibility of blooming piece can be reduced and improve the reliability of backlight illumination assembly, and improving Reusability.
Description
Technical field
The utility model relates to a kind of backlight illumination assembly, particularly relates to a kind of backlight illumination assembly, liquid crystal indicator and the electronic equipment that adopt light guide plate mode.
Background technology
Liquid crystal indicator, because its thickness is thin, lightweight and the feature such as low-power consumption, is widely used in the monitor and portable mobile apparatus etc. of office equipment, instrument and meter.Liquid crystal in liquid crystal indicator itself is not luminous, in use, by means of backlight illumination assembly for this liquid crystal indicator provides a flat light source, thus must realize Presentation Function.
In the prior art, backlight illumination assembly can be the backlight illumination assembly adopting light guide plate mode, and the incidence surface of this light guide plate is orthogonal with exiting surface.Fig. 1 is the structural representation of the backlight illumination assembly adopting light guide plate mode in prior art.As shown in Figure 1, this backlight illumination assembly 100 has light guide plate 101, light source 102, optical diaphragm group 103, light shielding part 104, cushion block 105, two-sided tape 106, reflectance coating 107, metal shell 108 and flexible print circuit board (Flexible Printed Circuit, FPC) 109 etc.
In FIG, light guide plate 101 has incidence surface 1011 and exiting surface 1012; Light source 102 is positioned at the incidence surface 1011 of light guide plate 101; Optical diaphragm group 103 is arranged at the exiting surface 1012 of light guide plate 101, and, be positioned at undermost blooming piece 1031 in optical diaphragm group and there is the extension 1031a extended towards the incidence surface 1011 of light guide plate; Light shielding part 104 covers the blooming piece 1032 of the superiors of this optical diaphragm group 103 at least partially, hides, in case leak-stopping light not needing the position penetrating light; Cushion block 105 is arranged on this extension 1031a by two-sided tape 106, and pass through adhesive material, such as two-sided tape (scheming not shown) is pasted with the lower surface of light shielding part 104, thus, can be formed light shielding part and support, prevent light shielding part 104 from moving up in the side that the exiting surface 1012 with light guide plate 101 is vertical; FPC109 is positioned at incidence surface 1011 side of light guide plate 101, is electrically connected with light source 102; Reflectance coating 107 is positioned on the face 1013 relative with exiting surface 1012 of light guide plate 101, reflects light; Metal shell 108 supporting reflex film 107, makes the rigidity of this backlight illumination assembly 100 whole improve.
As shown in Figure 1, in this backlight illumination assembly 100, the light that light source 102 sends is through the guiding of the optical elements such as light guide plate 101, reflectance coating 107, optical diaphragm group 103, be formed as planar light, and penetrate from the upper surface of the superiors' blooming piece 1032 of optical diaphragm group 103, this planar light can provide back lighting for liquid crystal indicator.
As the state of the art, such as can also referenced patent document 1 (WO2010/023996A1) and patent document 2 (TOHKEMY 2014-96312A) etc.
Above it should be noted that, just conveniently to the technical solution of the utility model, clear, complete explanation is carried out to the introduction of technical background, and facilitate the understanding of those skilled in the art to set forth.Only can not think that technique scheme is conventionally known to one of skill in the art because these schemes have carried out setting forth in background technology part of the present utility model.
Utility model content
In the prior art, when removing the impurity such as the dust in backlight illumination assembly, sometimes needing to open light shielding part, covered position is cleared up.Fig. 2 is schematic diagram when being opened by the light shielding part of Fig. 1, as shown in Figure 2, because light shielding part 104 and cushion block 105 bond, therefore, light shielding part 104, when being lifted, can make cushion block 105, two-sided tape 106 and optical diaphragm group 103 along the direction shown in arrow by pull-up in the lump, so, when light shielding part 104 is opened repeatedly, easily make optical diaphragm group 103 damage, reduce Reusability and the reliability of product.In addition, because orlop blooming piece 1031 is fixedly connected with light shielding part 104 across cushion block 105, light shielding part 104, when the side parallel or vertical along the exiting surface 1012 with light guide plate 101 moves up, likely causes orlop blooming piece 1031 wrinkling, reduces product reliability further.
In order to solve the problem existing for above-mentioned prior art, the utility model embodiment provides a kind of backlight illumination assembly, liquid crystal indicator and electronic equipment, according to backlight illumination assembly of the present utility model, optical diaphragm group can be prevented by pull-up repeatedly, and, prevent orlop blooming piece wrinkling, thus, improve reliability and the Reusability of backlight illumination assembly.
According to first aspect of the present utility model, a kind of backlight illumination assembly is provided, comprises:
There is the light guide plate of incidence surface and exiting surface;
Be arranged on the optical diaphragm group on the exiting surface of described light guide plate, the undermost blooming piece of described optical diaphragm group has the first extension extended towards the incidence surface of described light guide plate;
The cushion block that described first extension is arranged;
Cover the light shielding part at least partially of the blooming piece of the superiors of described optical diaphragm group,
Wherein, described backlight illumination assembly also has diaphragm, and described diaphragm is arranged between described light shielding part and described cushion block.
According to second aspect of the present utility model, wherein,
The described light guide plate side of described light shielding part is formed with adhesive layer, the described diaphragm of bonding at least partially of described adhesive layer.
According to the third aspect of the present utility model, wherein,
The blooming piece of the superiors of described optical diaphragm group has the second extension extended towards the incidence surface of described light guide plate, and described diaphragm is made up of described second extension, and described second extension is configured on described cushion block.
According to fourth aspect of the present utility model, wherein,
Described diaphragm is made up of the diaphragm different from described optical diaphragm group, and is configured on described cushion block.
According to the 5th aspect of the present utility model, wherein,
The blooming piece of the superiors of described optical diaphragm group is light diffusion layer.
According to the 6th aspect of the present utility model, wherein,
The superiors and the undermost blooming piece of described optical diaphragm group are light diffusion layer.
According to the 7th aspect of the present utility model, wherein,
The diffusivity of the blooming piece of the superiors of described optical diaphragm group is lower than the diffusivity of undermost blooming piece.
According to eighth aspect of the present utility model, wherein,
The blooming piece of the superiors of described optical diaphragm group is arranged to cover completely or partly cover described cushion block portion.
According to the 9th aspect of the present utility model, wherein,
The side alignment of the incidence surface towards described light guide plate of the blooming piece of the superiors of described optical diaphragm group, undermost blooming piece and described cushion block.
According to the tenth aspect of the present utility model, provide a kind of liquid crystal indicator, it has as the backlight illumination assembly in the above-mentioned first to the 9th aspect as described in either side.
According to the 11 aspect of the present utility model, provide a kind of electronic equipment, it has the liquid crystal indicator as described in above-mentioned tenth aspect.
The beneficial effects of the utility model are: owing to not pasting between light shielding part and cushion block, therefore, when light shielding part moves, cushion block can not be driven to move, thereby, it is possible to prevent optical diaphragm group by pull-up repeatedly, and, prevent undermost blooming piece wrinkling, thus can improve reliability and the Reusability of backlight illumination assembly.
With reference to explanation hereinafter and accompanying drawing, disclose in detail particular implementation of the present utility model, specifying principle of the present utility model can adopted mode.Should be appreciated that, thus embodiment of the present utility model is not restricted in scope.In the spirit of claims and the scope of clause, embodiment of the present utility model comprises many changes, amendment and is equal to.
The feature described for a kind of embodiment and/or illustrate can use in one or more other embodiment in same or similar mode, combined with the feature in other embodiment, or substitutes the feature in other embodiment.
Should emphasize, term " comprises/comprises " existence referring to feature, one integral piece, step or assembly when using herein, but does not get rid of the existence or additional of one or more further feature, one integral piece, step or assembly.
Accompanying drawing explanation
Included accompanying drawing is used to provide the further understanding to the utility model embodiment, which constituting a part for description, for illustrating embodiment of the present utility model, and coming together to explain principle of the present utility model with text description.Apparently, the accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the structural representation of the backlight illumination assembly adopting light guide plate mode in prior art;
Fig. 2 is schematic diagram when being opened by the light shielding part of Fig. 1;
Fig. 3 is a structural representation of the backlight illumination assembly of the utility model embodiment;
Fig. 4 is another structural representation of the backlight illumination assembly of the utility model embodiment.
Detailed description of the invention
With reference to accompanying drawing, by description below, aforementioned and further feature of the present utility model will become obvious.In the specification and illustrated in the drawings, specifically disclose particular implementation of the present utility model, which show the some embodiments that wherein can adopt principle of the present utility model, will be appreciated that, the utility model is not limited to described embodiment, on the contrary, the utility model comprises the whole amendments fallen in the scope of claims, modification and equivalent.In addition, in the description of the drawings, give identical numbering for identical constitutive requirements, and the repetitive description thereof will be omitted.
In addition, in following explanation of the present utility model, in order to the convenience illustrated, the light exit direction of backlight illumination assembly is defined as " on " direction, direction is in contrast D score direction, and " thickness " refers to length along the vertical direction, but this convenience just in order to illustrate, do not limit when backlight illumination assembly uses and manufactures towards.
Embodiment 1
The utility model embodiment 1 provides a kind of backlight illumination assembly.Fig. 3 is a structural representation of the backlight illumination assembly of the utility model embodiment, and as shown in Figure 3, this backlight illumination assembly 300 comprises light guide plate 301, optical diaphragm group 302, cushion block 303, light shielding part 304 and diaphragm 305.
Wherein, light guide plate 301 has incidence surface 3011 and exiting surface 3012; Optical diaphragm group 302 is arranged on the exiting surface 3012 of light guide plate 301, and wherein, the undermost blooming piece 3021 of optical diaphragm group 302 has the first extension 3021a extended towards the incidence surface 3011 of light guide plate 301; Cushion block 303 is arranged on this first extension 3021a; Light shielding part 304 covers the blooming piece 3022 of the superiors of this optical diaphragm group at least partially; Diaphragm 305 is arranged between light shielding part 304 and cushion block 303.
In the present embodiment; owing to being provided with diaphragm 305 between light shielding part 304 and cushion block 303, so cushion block 303 and light shielding part 304 are not pasted; therefore; uncovered at light shielding part 304 or when producing other and moving, cushion block 303 can not be driven to move, thus; optical diaphragm group 302 can be prevented by pull-up repeatedly; further, prevent undermost blooming piece 3021 wrinkling, thus can improve reliability and the Reusability of backlight illumination assembly 300.
In the embodiment of the application, this diaphragm 305 can be made up of the diaphragm different from this optical diaphragm group, and is configured on cushion block 303.But the application is not limited to this, this diaphragm 305 also can be made up of the diaphragm in this optical diaphragm group.
Fig. 4 is another structural representation of the backlight illumination assembly of the utility model embodiment, in the diagram, forms this diaphragm 305 by the diaphragm in this optical diaphragm group 302.In explanation below, the parts no longer repeat specification identical to Fig. 4 and Fig. 3, and only the difference of the two is described.
As shown in Figure 4, the blooming piece 3022 of the superiors of the optical diaphragm group 302 of backlight illumination assembly 400 has the second extension 3022a extended towards the incidence surface 3011 of light guide plate 301, and the 2nd extension 3022a is arranged between cushion block 303 and light shielding part 304.
In the diagram; diaphragm 305 can be made up of this second extension 3022a; namely; using this second extension 3022a as diaphragm 305, so, can while the blooming piece 3022 forming the superiors; form diaphragm 305 (namely; second extension 3022a), thus, save operation.
In the present embodiment; also diaphragm 305 can be replaced without this second extension 3022a; but diaphragm 305 had both been set; second extension 3022a is also set; wherein; this diaphragm 305 and the second extension 3022a can in the stacked settings of above-below direction; such as; between the lower surface that this diaphragm 305 can be arranged on this second extension 3022a and the upper surface of cushion block 303; or, between the upper surface that this diaphragm 305 can be arranged on this second extension 3022a and the lower surface of light shielding part 304.Thereby, it is possible to arrange the thickness of the second extension 3022a and diaphragm 305 neatly, guarantee to support light shielding part 304, produce downward movement or distortion to prevent light shielding part 304.
In the present embodiment, the blooming piece 3022 of the superiors of optical diaphragm group 302 can be configured to cover completely or partly cover this cushion block portion 303, such as, the length that this second extension 3022a extends to the incidence surface 3011 of light guide plate 301 can be set, make the blooming piece 3022 of these the superiors be configured to cover completely or part covers the upper surface in this cushion block portion 303.
In the present embodiment, as shown in Figure 4, the side alignment of the incidence surface 3011 towards light guide plate 301 of the blooming piece 3022 of the superiors of optical diaphragm group, undermost blooming piece 3021 and cushion block 303, thus, the accuracy of installation can be improved, improve yield rate.
In addition; in the present embodiment; light shielding part 304 can be formed with adhesive layer (scheming not shown) towards the side (that is, lower surface) of light guide plate 301, bonding with diaphragm 305 at least partially of this adhesive layer; thus; when light shielding part 304 is uncovered, only have the blooming piece 3022 of diaphragm 305 or the superiors by while pull-up, and whole optical diaphragm group 302 can not be made all to be pulled up; therefore, the performance of optical diaphragm group 302 is avoided to reduce.
In addition, in the present embodiment, as shown in Figure 3, this optical diaphragm group 302 can be stacked along the vertical direction by multiple blooming piece and formed, such as, this optical diaphragm group 302 can be followed successively by from the top down: as the light diffusion layer of the blooming piece 3022 of the superiors, namely go up diffusion layer, as the lens jacket of optical diaphragm layer 3023, namely go up lens jacket, as the lens jacket of optical diaphragm layer 3024, namely descend lens jacket, as the light diffusion layer of undermost blooming piece 3021, namely descend diffusion layer; Wherein, the thickness of blooming piece 3022,3023,3024 and 3021 such as can be respectively 0.05-0.15 centimetre, 0.05-0.1 centimetre, 0.05-0.1 centimetre, 0.05-0.1 centimetre.Thus, from the light that the exiting surface 3012 of light guide plate penetrates, can planar light be converted into by this optical diaphragm group 302 and penetrate.
In addition, in the present embodiment, the diffusivity of the blooming piece 3022 of the superiors of optical diaphragm group can, lower than the diffusivity of undermost blooming piece 3021, thus, make the light penetrated from the upper surface of the blooming piece 3022 of the superiors have higher intensity and the uniformity.
In addition, in the present embodiment, as shown in Figure 3 and Figure 4, the thickness D1 of the close incidence surface side of the light guide plate 301 of backlight illumination assembly is greater than the thickness D2 at exiting surface place place, and such as, D1 can be 0.3-0.6 centimetre, D2 can be 0.1-0.5 centimetre.Thereby, it is possible to make incidence surface have the ability of stronger collection light.
In addition, in the present embodiment, as shown in Figure 3 and Figure 4, backlight illumination assembly 300 can also have light source 306, two-sided tape 307, FPC308, reflectance coating 309 and metal shell 310 etc.Wherein, light source 306 can be such as multiple light emitting diode (Light-Emitting Diode, LED), and it is positioned at the incidence surface 3011 of light guide plate 301; Two-sided tape 307 between cushion block 303 and the first extension 3021a, for making the two fixed bonding; FPC308 is positioned at the incidence surface side of light guide plate 301, is electrically connected with light source 305; Reflectance coating 309 is positioned on the face 3013 relative with exiting surface 3012 of light guide plate 301, reflects light; Metal shell 310 supporting reflex film 309, makes the rigidity of whole backlight illumination assembly 300 improve.
According to the present embodiment, owing to not pasting between light shielding part and cushion block, therefore, when light shielding part moves, cushion block can not be driven to move, thus, optical diaphragm group can be prevented by pull-up repeatedly, further, prevent undermost blooming piece wrinkling, thus can improve reliability and the Reusability of backlight illumination assembly.
Embodiment 2
The utility model embodiment 2 provides a kind of liquid crystal indicator, this display unit has liquid crystal display and the backlight illumination assembly described in embodiment 1, wherein, this backlight illumination assembly is used for providing area source as backlight to liquid crystal display, and the light that this liquid crystal display uses this area source to send shows.
According to the present embodiment, backlight illumination assembly has higher reliability and Reusability, and thus, the reliability of liquid crystal indicator is also improved.
Embodiment 3
The utility model embodiment 3 provides a kind of electronic equipment, and this electronic equipment has the liquid crystal indicator described in embodiment 2, and due in example 2, be illustrated this liquid crystal indicator, its content is incorporated in this, does not repeat them here.
According to the present embodiment, backlight illumination assembly has higher reliability and Reusability, and thus, in this electronic equipment, the reliability of liquid crystal indicator is also improved.
More than being described the utility model in conjunction with concrete embodiment, but it will be apparent to those skilled in the art that these descriptions are all exemplary, is not the restriction to the utility model protection domain.Those skilled in the art can make various variants and modifications according to spirit of the present utility model and principle to the utility model, and these variants and modifications are also in scope of the present utility model.
Claims (11)
1. a backlight illumination assembly, comprising:
There is the light guide plate of incidence surface and exiting surface;
Be arranged on the optical diaphragm group on the exiting surface of described light guide plate, the undermost blooming piece of described optical diaphragm group has the first extension extended towards the incidence surface of described light guide plate;
The cushion block that described first extension is arranged; And
Cover the light shielding part at least partially of the blooming piece of the superiors of described optical diaphragm group,
It is characterized in that,
Described backlight illumination assembly also has diaphragm, and described diaphragm is arranged between described light shielding part and described cushion block.
2. backlight illumination assembly as claimed in claim 1, is characterized in that,
Adhesive layer is formed in the described light guide plate side of described light shielding part,
The described diaphragm of bonding at least partially of described adhesive layer.
3. backlight illumination assembly as claimed in claim 1, is characterized in that,
The blooming piece of the superiors of described optical diaphragm group has the second extension extended towards the incidence surface of described light guide plate,
Described diaphragm is made up of described second extension,
Described second extension is configured on described cushion block.
4. backlight illumination assembly as claimed in claim 1, is characterized in that,
Described diaphragm is made up of the diaphragm different from described optical diaphragm group, and is configured on described cushion block.
5. backlight illumination assembly as claimed in claim 1, it is characterized in that, the blooming piece of the superiors of described optical diaphragm group is light diffusion layer.
6. backlight illumination assembly as claimed in claim 1, it is characterized in that, the superiors and the undermost blooming piece of described optical diaphragm group are light diffusion layer.
7. backlight illumination assembly as claimed in claim 6, is characterized in that, the diffusivity of the blooming piece of the superiors of described optical diaphragm group is lower than the diffusivity of undermost blooming piece.
8. the backlight illumination assembly of any one as described in claim 1 to 7, is characterized in that, the blooming piece of the superiors of described optical diaphragm group is arranged to cover completely or part covers described cushion block portion.
9. the backlight illumination assembly of any one as described in claim 1 to 7, is characterized in that, the side alignment of the incidence surface towards described light guide plate of the blooming piece of the superiors of described optical diaphragm group, undermost blooming piece and described cushion block.
10. a liquid crystal indicator, is characterized in that, described liquid crystal indicator has the backlight illumination assembly described in any one of claim 1 to 9.
11. 1 kinds of electronic equipments, is characterized in that, described electronic equipment has liquid crystal indicator according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420680215.8U CN204459922U (en) | 2014-11-07 | 2014-11-07 | Backlight illumination assembly, liquid crystal indicator and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420680215.8U CN204459922U (en) | 2014-11-07 | 2014-11-07 | Backlight illumination assembly, liquid crystal indicator and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204459922U true CN204459922U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420680215.8U Expired - Fee Related CN204459922U (en) | 2014-11-07 | 2014-11-07 | Backlight illumination assembly, liquid crystal indicator and electronic equipment |
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| CN (1) | CN204459922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807492A (en) * | 2016-05-24 | 2016-07-27 | 京东方科技集团股份有限公司 | Backlight module and display device |
-
2014
- 2014-11-07 CN CN201420680215.8U patent/CN204459922U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807492A (en) * | 2016-05-24 | 2016-07-27 | 京东方科技集团股份有限公司 | Backlight module and display device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20211107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |