CN207833180U - Quantum dot backlight and liquid crystal display with it - Google Patents
Quantum dot backlight and liquid crystal display with it Download PDFInfo
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- CN207833180U CN207833180U CN201721421494.6U CN201721421494U CN207833180U CN 207833180 U CN207833180 U CN 207833180U CN 201721421494 U CN201721421494 U CN 201721421494U CN 207833180 U CN207833180 U CN 207833180U
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- guide plate
- light source
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- source assembly
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Abstract
The utility model discloses a kind of quantum dot backlight and with its liquid crystal display, including backboard, light source assembly, light guide plate, quantum rod and mounting base, wherein light source assembly is set in the backboard；Light guide plate is set to the side in the backboard and positioned at the light source assembly, to receive the light of the light source assembly；Quantum rod is set between the light source assembly and light guide plate and is spaced apart with the light source assembly and light guide plate, and colour switching is carried out for the light to the light source assembly；Mounting base is set to the lower section in the backboard and positioned at the quantum rod and light guide plate, and the quantum rod and light guide plate are mounted in the mounting base with being relatively fixed.The quantum dot backlight provided according to the utility model embodiment, the problems such as can preventing light guide plate from expanding and squeezing quantum rod, avoiding quanta point material leakage caused by quantum rod rupture, improve the reliability that the quantum dot backlight uses, meanwhile more safety and environmental protection.
Description
Technical field
The utility model is related to backlight more particularly to a kind of quantum dot backlight and with its liquid crystal display.
Background technology
Backlight module is one of the critical component of liquid crystal display (LCD).Currently, liquid crystal display (LCD) is extensively
Applied to mobile phone, laptop, in the portable electronic product of the high growth potential such as digital camera.
Quantum dot can be used for increasing the excitation purity in LED light source.When the electronics of excitation is transferred to valence band from conduction band, quantum
Point shines, and the wavelength of light changes according to the size of quantum dot.Due to emitting compared with shortwave when the size of quantum dot is smaller
Long light, therefore the light with desired wavelength can be obtained by adjusting the size of quantum dot.
Quanta point material may contain the hazard component of such as Cr, so, quanta point material is generally sealed in containment member
Quantum rod is formed in (such as glass).However, in a particular application, quantum rod is assembled in the backlight, since light guide plate expands
Or the reasons such as extruding of other components, containment member may be caused to rupture, and then quanta point material is caused to be leaked from seal member,
Environmental pollution may then be led to problems such as.
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 quantum dot backlight with a novel purpose.
Another purpose of the utility model is to propose a kind of liquid crystal display with above-mentioned quantum dot backlight.
To achieve the above object, on the one hand, according to the quantum dot backlight of the utility model embodiment, including：
Backboard；
Light source assembly, the light source assembly are set in the backboard；
Light guide plate, the light guide plate is set to the side in the backboard and positioned at the light source assembly, described in reception
The light of light source assembly；
Quantum rod, the quantum rod be set between the light source assembly and light guide plate and with the light source assembly and leaded light
Plate is spaced apart, and colour switching is carried out for the light to the light source assembly；
Mounting base, the mounting base is set to the lower section in the backboard and positioned at the quantum rod and light guide plate, described
Quantum rod and light guide plate are mounted in the mounting base with being relatively fixed.
According to the quantum dot backlight that the utility model embodiment provides, quantum rod and light guide plate are mounted on being relatively fixed
In mounting base, in this way, when light guide plate expands, light guide plate drives quantum rod synchronous shift via mounting base, and then can be with
The problems such as preventing light guide plate from expanding and squeezing quantum rod, avoiding quanta point material leakage caused by quantum rod rupture, improving should
The reliability that quantum dot backlight uses, meanwhile, more safety and environmental protection.
In addition, can also have following additional technology special according to the quantum dot backlight of the utility model above-described embodiment
Sign：
One embodiment according to the present utility model, the mounting base include the base portion to extend in the horizontal direction, the base
The protrusion projected upwards towards the light guide plate is formed in portion, closed on the light guide plate quantum rod one end be equipped with open
The groove of mouth down, the protrusion and the fit depressions.
One embodiment according to the present utility model, the quantum rod are bonded and fixed to by adhesive on the base portion.
One embodiment according to the present utility model, the mounting base further include the rib portion vertically extended, institute
It states rib portion and is connected to the side for closing on the light source assembly on the base portion, close on the one of the quantum rod in the rib portion
Side is equipped with the first elastomer isolators, and the rib portion is spaced apart by first elastomer isolators with the quantum rod.
One embodiment according to the present utility model, the backboard have side frame, the side frame and the rib portion
Between be equipped with elastic buffering pad.
One embodiment according to the present utility model, the light source assembly include circuit board and multiple LED light sources, the electricity
Road plate is set between the side frame and the rib portion, and multiple LED light sources are between the length direction of the circuit board
Every being arranged on the circuit board, the elastic buffering pad is set between the circuit board and the rib portion.
One embodiment according to the present utility model further includes stick lid, the stick lid be located at the top of the quantum rod and
Cover the quantum rod, the stick is covered equipped with clearance groove, the top of the quantum rod be contained in the clearance groove and with institute
The inner wall for stating clearance groove does not contact.
One embodiment according to the present utility model, the one side wall that the light source assembly is closed in the clearance groove are equipped with the
Two elastomer isolators, the one side wall that the light guide plate is closed in the clearance groove are equipped with third elastomer isolators, the quantum rod
Top between second elastomer isolators and third elastomer isolators.
On the other hand, according to the liquid crystal display of the utility model embodiment, there is above-mentioned quantum dot backlight.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model embodiment quantum dot backlight；
Reference numeral：
Backboard 10；
Side frame 101；
Light source assembly 11；
Circuit board 111；
LED light source 112；
Quantum rod 12；
Glass shell 121；
Quanta point material 122；
Light guide plate 13；
Groove 131；
Mounting base 14；
Base portion 141；
Protrusion 142；
Rib portion 143；
Adhesive 15；
First elastomer isolators 16；
Stick lid 17；
Second elastomer isolators 18；
Third elastomer isolators 19；
Elastic buffering pad 20；
Reflectance coating 21；
Optical film 22；
Diffusion barrier 221；
Bright enhancement film 222.
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 implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation, be based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise " " axial direction ", " circumferential direction ", " radial direction " is orientation based on ... shown in the drawings
Or position relationship, be merely for convenience of describing the present invention and simplifying the description, do not indicate or imply the indicated device or
Element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the utility model
System.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an 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 present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features are in direct contact, and can also not be to be in direct contact but lead to including the first and second features
Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only
Indicate that fisrt feature level height is less than second feature.
The quantum dot backlight of the utility model embodiment is described in detail with reference to the accompanying drawings.
Shown in referring to Fig.1, according to the quantum dot backlight that the utility model embodiment provides, including backboard 10, light source group
Part 11, light guide plate 13, quantum rod 12 and mounting base 14.
Specifically, light source assembly 11 is set in the backboard 10, light guide plate 13 is set in the backboard 10 and is located at
The side of the light source assembly 11, to receive the light of the light source assembly 11, quantum rod 12 is set to the light source assembly 11
It is spaced apart between light guide plate 13 and with the light source assembly 11 and light guide plate 13, is carried out for the light to the light source assembly 11
Colour switching.Mounting base 14 is set to the lower section in the backboard 10 and positioned at the quantum rod 12 and light guide plate 13, the amount
Sub- stick 12 and light guide plate 13 are mounted in the mounting base 14 with being relatively fixed.
That is, the quantum dot backlight is mainly by backboard 10, light source assembly 11, light guide plate 13, quantum rod 12 and peace
It fills seat 14 to form, wherein light source assembly 11, light guide plate 13 and quantum rod 12 are set in backboard 10, and light source assembly 11 is in amount
Sub- stick 12 is oppositely arranged, and quantum rod 12 is between light source assembly 11 and light guide plate 13.And mounting base 14 is set in backboard 10
And positioned at the lower section of quantum rod 12 and light guide plate 13, quantum rod 12 and light guide plate 13 are fixedly mounted in the mounting base 14, when leading
When tabula rasa 13 expands, light guide plate 13, quantum rod 12 and mounting base 14 can synchronize to be moved outward, and light guide plate 13 and quantum rod
It is not relatively moved between 12.
The quantum backlight can also include reflectance coating 21 and optical film 22, reflectance coating 21 be set in the backboard 10 and
Positioned at the lower section of light guide plate 13, optical film 22 is set to the top of light guide plate 13.In a particular application, light source assembly 11 is sent out
Light carries out being incident upon light guide plate 13 after being converted to white light by quantum rod 12, and the most of light for entering to light guide plate 13 passes through
It is incident upon optical film 22 from light-emitting surface after the reflection of light guide plate 13, and a small amount of light is injected after reflectance coating 21 reflects and is back to leaded light
Plate 13, and inject optical film 22 from the light-emitting surface of light guide plate 13.And the light of optical film 22 is entered to, it is carried out via optical film 22
It is projected after optical treatment.
It should be noted that reflectance coating 21 reflects light back into light guide plate 13, the utilization rate of light can be improved, and optical film
22 pairs of light carry out optical treatment, can improve the uniformity, brightness, the coloration of light etc. projected from light guide plate 13.
Advantageous, optical film 22 includes diffusion barrier 221 and bright enhancement film 222, and the bright enhancement film 222 is stacked in the expansion
The top for dissipating film 221, in this way, the light into optical film 22 can be diffused by diffusion barrier 221, then passes through bright enhancement film
222 are enhanced, and then improve the uniformity, brightness, the coloration of light etc. sent out from light-emitting surface.
According to the quantum dot backlight that the utility model embodiment provides, quantum rod 12 and light guide plate 13 are pacified with being relatively fixed
In mounting base 14, in this way, when light guide plate 13 expands, light guide plate 13 drives quantum rod 12 to synchronize via mounting base 14
Displacement, and then can prevent light guide plate 13 from expanding and squeezing quantum rod 12, avoid quantum dot material caused by the rupture of quantum rod 12
The problems such as 122 leakage of material, the reliability that the quantum dot backlight uses is improved, meanwhile, more safety and environmental protection.
In one embodiment of the utility model, mounting base 14 includes the base portion 141 to extend in the horizontal direction, described
It is formed with the protrusion 142 projected upwards towards the light guide plate 13 on base portion 141, closes on the quantum rod on the light guide plate 13
12 one end is equipped with downward opening groove 131, and described raised 142 match with the groove 131.
That is, protrusion 142 is set on the base portion 141 of mounting base 14, in the upper setting groove 131 of light guide plate 13,
Protrusion 142 is inserted into groove 131, advantageous, and the shape of protrusion 142 is adapted with the shape of groove 131 so that the protrusion
142 with 131 tight fit of groove, in this way, realizing that light guide plate 13 is relatively fixed in the horizontal direction with mounting base 14, structure is simple
Single, easy to assembly, light guide plate 13 is relatively fixed secured, reliable in 14 level of mounting base.
Illustratively, quantum rod 12 is bonded and fixed to by adhesive 15 on the base portion 141, in general, quantum rod 12
Including glass shell 121 and it is packaged in quanta point material 122 in glass shell 121, therefore, using adhesive 15 by glass shell
121 is directly Nian Jie with mounting base 14, in this way, be fixed conveniently, and it is solid and reliable.
In some embodiments of the utility model, mounting base 14 further includes the rib portion 143 vertically extended, institute
It states rib portion 143 and is connected to the side for closing on the light source assembly 11 on the base portion 141, close on institute in the rib portion 143
The side for stating quantum rod 12 is equipped with the first elastomer isolators 16, and first elastomer isolators 16 are by the rib portion 143 and institute
Quantum rod 12 is stated to be spaced apart.
That is, close to the side of light source assembly 11 setting rib portion 143 on base portion 141, in rib portion 143 and amount
First elastomer isolators 16 are set between sub- stick 12, so, on the one hand, when quantum rod 12 is moved or is shaken, the first bullet
Sexual isolation part 16 can be by preventing quantum rod 12 and light source assembly 11 from contacting or colliding, and then protects quantum rod 12 from damage
Wound；On the other hand, if light source assembly 11 is approached or contacted with quantum rod 12, the heat generated in light source assembly 11 is promptly
Conduction can then reduce the efficiency of quantum rod 12 to quantum rod 12, and in the present embodiment, the first elastomer isolators 16 are by quantum rod 12
Efficiency spaced apart with light source assembly 11, then can preventing quantum rod 12 from being reduced due to heat deterioration.
Optionally, which may be used rubber, and the materials such as silicones are made, rubber and silicones tool
There is good elasticity, isolating and protecting can be played the role of.
In one embodiment of the utility model, backboard 10 has side frame 101, side frame 101 and the rib portion
Elastic buffering pad 20 is equipped between 143.In this way, when mounting base 14 with light guide plate 13 expand and the direction of side frame 101 move when,
Then the elastic buffering pad 20 between side frame 101 and rib portion 143 can play the role of elastic buffer, and mounting base 14 is avoided to squeeze
Side frame 101 causes structural failure and displacement excessive the problems such as causing quantum rod 12 too close apart from light source assembly 11.
Further, light source assembly 11 may include circuit board 111 and multiple LED light sources 112, and the circuit board 111 is set
It is placed between the side frame and the rib portion 143, multiple LED light sources 112 are along the length side of the circuit board 111
To arranged for interval on the circuit board 111, the elastic buffering pad 20 is set to the circuit board 111 and the rib portion
Between 143.
That is, circuit board 111 is set between side frame 101 and rib portion 143, and elastic buffering pad 20 is set to
Between circuit board 111 and rib portion 143, in this way, structure is simpler compact, also, when mounting base 14 can also be avoided to move
Circuit board 111 is caused to damage.
Further include stick lid 17 in some embodiments of the utility model, the stick lid 17 is located at the quantum rod 12
Top and the covering quantum rod 12, the stick lid 17 are equipped with clearance groove, the top of the quantum rod 12 be contained in it is described between
It is not contacted in slot and with the inner wall of the clearance groove.
That is, stick lid 17 is arranged above quantum rod 12, quantum rod 12 is covered using the stick lid 17, in this way, can be with
Other component contacts or is expressed to quantum rod 12 in assembling process, and is damaged to quantum rod 12.In addition, quantum rod 12
Top is contained in clearance groove and is not contacted with the inner wall of clearance groove, in this way, when receiving external compression, stick lid 17 will not touch
Quantum rod 12, in this way, further increasing the protective effect to quantum rod 12.
More favorably, the one side wall that the light source assembly 11 is closed in clearance groove is equipped with the second elastomer isolators 18, institute
The one side wall that the light guide plate 13 is closed in clearance groove is stated equipped with third elastomer isolators 19, the top of the quantum rod 12 is located at
Between second elastomer isolators 18 and third elastomer isolators 19.
That is, the second elastomer isolators 18 and third elastomer isolators 19 are respectively set in the two side of clearance groove,
The top of quantum rod 12 is isolated with the two side of clearance groove using the second elastomer isolators 18 and third elastomer isolators 19, such as
This, can prevent quantum rod 12 from will not be contacted with the side wall of clearance groove, and then avoid that quantum rod 12 is drawn to damage.
Optionally, elastic material may be used in elastic buffering pad 20, the second elastomer isolators 18 and third elastomer isolators 19
Material is made, such as rubber, silicones etc..
According to the liquid crystal display of the utility model embodiment, there is above-mentioned quantum dot backlight.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
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 is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combines and combination.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
Under every utility model in the utility model is conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (9)
1. a kind of quantum dot backlight, which is characterized in that including：
Backboard；
Light source assembly, the light source assembly are set in the backboard；
Light guide plate, the light guide plate is set to the side in the backboard and positioned at the light source assembly, to receive the light source
The light of component；
Quantum rod, the quantum rod are set between the light source assembly and light guide plate and between the light source assembly and light guide plate
It separates, colour switching is carried out for the light to the light source assembly；
Mounting base, the mounting base are set to the lower section in the backboard and positioned at the quantum rod and light guide plate, the quantum
Stick and light guide plate are mounted in the mounting base with being relatively fixed.
2. quantum dot backlight according to claim 1, which is characterized in that the mounting base includes extending in the horizontal direction
Base portion, be formed with the protrusion projected upwards towards the light guide plate on the base portion, the quantum closed on the light guide plate
One end of stick is equipped with downward opening groove, the protrusion and the fit depressions.
3. quantum dot backlight according to claim 2, which is characterized in that the quantum rod is adhesively fixed by adhesive
In on the base portion.
4. quantum dot backlight according to claim 2, which is characterized in that the mounting base further includes vertically prolonging
The rib portion of exhibition, the rib portion are connected to the side for closing on the light source assembly on the base portion, are closed in the rib portion
The side of the quantum rod is equipped with the first elastomer isolators, and first elastomer isolators are by the rib portion and the quantum rod
It is spaced apart.
5. quantum dot backlight according to claim 4, which is characterized in that the backboard has side frame, the side
Elastic buffering pad is equipped between frame and the rib portion.
6. quantum dot backlight according to claim 5, which is characterized in that the light source assembly includes circuit board and multiple
LED light source, the circuit board are set between the side frame and the rib portion, and multiple LED light sources are along the circuit
For the length direction arranged for interval of plate on the circuit board, the elastic buffering pad is set to the circuit board and the rib portion
Between.
7. quantum dot backlight according to claim 1, which is characterized in that further include stick lid, the stick lid is located at described
The top of the quantum rod and covering quantum rod, the stick are covered equipped with clearance groove, the top of the quantum rod are contained in described
It is not contacted in clearance groove and with the inner wall of the clearance groove.
8. quantum dot backlight according to claim 7, which is characterized in that close on the light source assembly in the clearance groove
One side wall be equipped with the second elastomer isolators, the one side wall that the light guide plate is closed in the clearance groove is equipped with third elastomeric isolation
Part, the top of the quantum rod is between second elastomer isolators and third elastomer isolators.
9. a kind of liquid crystal display, which is characterized in that have such as quantum dot backlight described in any item of the claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721421494.6U CN207833180U (en) | 2017-10-30 | 2017-10-30 | Quantum dot backlight and liquid crystal display with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721421494.6U CN207833180U (en) | 2017-10-30 | 2017-10-30 | Quantum dot backlight and liquid crystal display with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207833180U true CN207833180U (en) | 2018-09-07 |
Family
ID=63385405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721421494.6U Active CN207833180U (en) | 2017-10-30 | 2017-10-30 | Quantum dot backlight and liquid crystal display with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207833180U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107577087A (en) * | 2017-10-30 | 2018-01-12 | 深圳市巨世科技股份有限公司 | Quantum dot backlight and there is its LCDs |
| CN109782484A (en) * | 2019-01-24 | 2019-05-21 | 重庆京东方显示照明有限公司 | Backlight position limiting structure and backlight source module |
-
2017
- 2017-10-30 CN CN201721421494.6U patent/CN207833180U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107577087A (en) * | 2017-10-30 | 2018-01-12 | 深圳市巨世科技股份有限公司 | Quantum dot backlight and there is its LCDs |
| CN109782484A (en) * | 2019-01-24 | 2019-05-21 | 重庆京东方显示照明有限公司 | Backlight position limiting structure and backlight source module |
| CN109782484B (en) * | 2019-01-24 | 2022-02-25 | 重庆京东方显示照明有限公司 | Backlight source limiting structure and backlight source module |
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