CN208172452U - Backlight module and corresponding liquid crystal display device with light adjustment effect - Google Patents
Backlight module and corresponding liquid crystal display device with light adjustment effect Download PDFInfo
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- CN208172452U CN208172452U CN201820738759.3U CN201820738759U CN208172452U CN 208172452 U CN208172452 U CN 208172452U CN 201820738759 U CN201820738759 U CN 201820738759U CN 208172452 U CN208172452 U CN 208172452U
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- light source
- backlight module
- adjustment effect
- diffusing member
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Abstract
The utility model provides a kind of backlight module with light adjustment effect comprising light source and light guide plate, light source include the LED light of multiple laid out in parallel；Light guide plate is arranged on the light direction of light source；Light guide plate includes guide-lighting plate body, the light diffusing member being arranged in guide-lighting plate body incidence surface one end and the two light subregion components for being used to form string light region being arranged in light guide plate incidence surface one end；Light diffusing member is located between light subregion component；The light-emitting surface face light diffusing member of light source middle section, the light-emitting surface face light subregion component of light source two side areas are greater than the distance between the LED light positioned at light source two side areas positioned at the distance between LED light of light source middle section.The utility model further relates to a kind of liquid crystal display device, and the utility model improves the surface source luminescence uniformity of the utility model by the setting of light diffusing member and the light subregion component positioned at light diffusing member two sides in light guide plate.
Description
Technical field
The utility model relates to backlight module fields, more particularly to a kind of backlight module with light adjustment effect.
Background technique
With the development of backlight module, it is straight-down negative respectively that backlight module, which is applied to there are two types of liquid crystal display devices, at present
Backlight module and side entrance back module.
In side entrance back module, backlight module includes light source and light guide plate, in existing backlight module, due in
Between light source luminescent brightness it is larger, the light source luminescent brightness of two sides is relatively small, light guide plate do not have light adjust effect, lead
It causes the light emission luminance of the two side areas of backlight module more dim, affects luminous uniformity.
Further, although the astigmatism plate of the incidence surface setting prism structure of the light guide plate in some backlight modules, to improve
Light source enters the uniformity of light guide plate light, but the light adjustment effect of light guide plate itself is undesirable, still remain backlight mould
The light emission luminance of group two side areas is secretly in the intermediate region the case where.
Therefore, it is desirable to provide a kind of backlight module with light adjustment effect, to solve above-mentioned technical problem.
Utility model content
The utility model embodiment provides a kind of backlight module and shines uniform area source, back with light adjustment effect
Optical mode group；It is insufficient with the light adjustment effect for solving light guide plate in existing backlight module, lead to the surface source luminescence of backlight module
Non-uniform technical problem.
The utility model embodiment provides a kind of backlight module with light adjustment effect comprising：
Light source, the LED light including multiple laid out in parallel；And
Light guide plate is arranged on the light direction of the light source；
The light guide plate includes guide-lighting plate body, the light diffusing member being arranged in described guide-lighting plate body incidence surface one end and sets
Set two light subregion components for being used to form string light region in light guide plate incidence surface one end；The light diffusing unit
Part is between the smooth subregion component；
Wherein, light diffusing member described in the light-emitting surface face of the light source middle section, the light source two side areas go out
Light subregion component described in smooth surface face is greater than positioned at the distance between LED light of the light source middle section and is located at the light source
The distance between LED light of two side areas.
In the backlight module with light adjustment effect of the utility model, the distance between described LED light is from the light
Source middle section successively decreases to the two side areas of the light source.
In the backlight module with light adjustment effect of the utility model, the LED light of the light source two side areas is most
Big light emitting angle is covered in the smooth subregion component.
In the backlight module with light adjustment effect of the utility model, positioned at the LED light of the light source middle section
In, the light emitting angle part close to the LED light of the light source two side areas covers the smooth subregion component.
In the backlight module with light adjustment effect of the utility model, positioned at the LED light of the light source middle section
There are five settings, and the LED light positioned at the light source two side areas is each provided with two.
In the backlight module with light adjustment effect of the utility model, the light diffusing member includes recessed described
Multiple the of multiple first arc-shaped concaves of light diffusing member incidence surface one end and recessed light diffusing member light-emitting surface one end
Two arc-shaped concaves, first arc-shaped concave and the second arc mirror settings.
In the backlight module with light adjustment effect of the utility model, the smooth subregion component includes corresponding to described
The light out part of light source two side areas and positioned at the light subregion portion of the light out part and the light source two side areas, the smooth subregion portion
Connection is arranged in the two sides of the light out part and extends to the incidence surface of the light guide plate, and the refractive index of the smooth subregion component is small
In the refractive index of the light conducting plate body.
In the backlight module with light adjustment effect of the utility model, the light out part is convex arc shaped, the light point
Portion of area is planar.
In the backlight module with light adjustment effect of the utility model, in the opposite one side in two smooth subregion portions
It is provided with the salient point with astigmatism effect, the salient point is positioned close to one end of the light source.
The utility model further relates to a kind of liquid crystal display device comprising the above-mentioned backlight module with light adjustment effect
With the liquid crystal display panel being arranged on the backlight module.
Backlight module and liquid crystal display device compared to the prior art, the backlight module of the utility model and corresponding liquid
Crystal device is improved by the setting of light diffusing member and the light subregion component positioned at light diffusing member two sides in light guide plate
The surface source luminescence uniformity of the utility model；The light adjustment effect for solving light guide plate in existing backlight module is insufficient, leads
Cause the non-uniform technical problem of surface source luminescence of backlight module.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below in embodiment
Required attached drawing is briefly described.The accompanying drawings in the following description is only the section Example of the utility model, for
For those of ordinary skill in the art, without creative efforts, other can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural schematic diagram of the embodiment of the backlight module with light adjustment effect of the utility model；
Fig. 2 is the structural schematic diagram of the AA section line along Fig. 1；
Fig. 3 is the structural schematic diagram of the embodiment of the liquid crystal display device of the utility model.
Specific embodiment
The schema in attached drawing is please referred to, wherein identical component symbol represents identical component.The following description is to be based on
Illustrated by the utility model specific embodiment, be not construed as limitation the utility model other specific realities not detailed herein
Apply example.
Referring to Fig.1 and 2, Fig. 1 is the knot of the embodiment of the backlight module with light adjustment effect of the utility model
Structure schematic diagram；Fig. 2 is the structural schematic diagram of the AA section line along Fig. 1.
The backlight module with light adjustment effect of the present embodiment comprising light source and light guide plate 20.
Specifically, light source includes the LED light 11 of multiple laid out in parallel, light guide plate 20 is arranged on the light direction of light source.
Light guide plate 20 includes guide-lighting plate body 21, the light diffusing member 22 being arranged in guide-lighting 21 incidence surface one end of plate body and sets
Set two light subregion components 23 for being used to form string light region in 20 incidence surface one end of light guide plate；Light diffusing member 22
Between light subregion component 23；
Wherein, the light-emitting surface face light diffusing member 23 of light source middle section, the light-emitting surface face light of light source two side areas
Subregion component 23, positioned at the distance between LED light 11 of light source middle section be greater than positioned at light source two side areas LED light 11 it
Between distance.
The backlight module with light adjustment effect of the present embodiment is by light diffusing member 22 in light guide plate 20 and is located at light
The setting of the light subregion component 23 of 22 two sides of proliferation part, improves the surface source luminescence uniformity of the present embodiment.
Wherein, the light of light source middle section is carried out light DIFFUSION TREATMENT by light diffusing member 22, so that the light of middle section
Line can be radiated to the two sides of light guide plate 20 to the greatest extent；Light subregion component 23 is most by the light of light source two side areas
Collection radiates the two sides into guide-lighting plate body 21 in light subregion component 23, and by light in the form of strip, by the two to light
The adjustment effect of source light, so that the light in guide-lighting plate body 21 is more balanced；Further, the LED light 11 of middle section is allowed
The distance between be greater than two side areas the distance between LED light 11 further enhance two side areas to adjust the density of light
Light intensity；Under the comprehensive adjustment of three, the light for making up light source enters the uniformity of guide-lighting plate body 21.
In the present embodiment, the distance between LED light 11 is successively decreased from light source middle section to the two side areas of light source.In this way
Setting be unlikely to gradient type occur so that the light of middle section successively decreases to the even intensity of the light of two side areas
Light successively decreases.
In the present embodiment, the maximum light emitting angle of the LED light 11 of light source two side areas is covered on light subregion component 23
It is interior.Such setting will not be radiated further such that the light of light source two side areas is all gathered in the two sides of light guide plate 20
The intermediate region of light guide plate 20.
In the present embodiment, in the LED light 11 of light source middle section, by the LED light 11 of close to sources two side areas
Light emitting angle part covers light subregion component 23.Such setting further improves the light intensity of light source two side areas, into
And improve the light intensity of two side areas in guide-lighting plate body 21.
In the present embodiment, positioned at light source middle section LED light 11 setting there are five, positioned at light source two side areas
LED light 11 is each provided with two.In the present invention, the quantity of LED light 11 according to the actual situation depending on, therefore this is practical
In novel, the quantity of LED light is not limited to this.
In the present embodiment, light diffusing member 22 includes recessed multiple first arcs in 22 incidence surface one end of light diffusing member
Multiple second arc-shaped concaves 222 of 22 light-emitting surface one end of shape concave surface 221 and recessed light diffusing member, 221 He of the first arc-shaped concave
The setting of second arc mirror image 222.Bottom surface of the long axis direction of first arc-shaped concave 221 perpendicular to light guide plate 20.Pass through the first arc
The common setting of shape concave surface 221 and the second arc-shaped concave 222, improves the range of scatter of light, so that light is in guide-lighting plate body 21
It is inside more balanced.
In the present embodiment, light subregion component 23 includes corresponding to the light out part 231 of light source two side areas and positioned at light out
The light subregion portion 232 in portion 231 and light source two side areas, light subregion portion 232 connect the two sides that light out part 231 is arranged in and extend to
The incidence surface of light guide plate 20, the refractive index of light subregion component 23 are less than the refractive index of light conducting plate body 21.
Wherein, the refractive index of light subregion component 23 is less than the refractive index of guide-lighting plate body 21, the LED of light source two side areas setting
The limitation in the light light subregion portion 232 that lamp 11 issues simultaneously is issued from light out part 231, forms string light region.In addition, light point
Portion of area 232 is separated by the two side areas of light source middle section and light source.
In the present embodiment, light out part 231 is convex arc shaped, realizes lens function；Light subregion portion 232 is planar, realization
Emission function.
In the present embodiment, it is provided with the salient point with astigmatism effect in the opposite one side in two light subregion portions 232, it is described
Salient point is positioned close to one end of the light source.For light to be scattered processing, passed through out so that light is more balanced
Light portion 231.
In addition, in the present embodiment, light guide plate 20 also wraps the site 24 that 20 bottom surface of light guide plate is arranged in, between site 24
Distance is successively decreased from one end by close to sources to one end far from light source.It is equal in light guide plate 20 to improve light for such setting
Even property.
The operating process of the present embodiment is：
The light that the LED light 11 of light source middle section issues, the expansion of most of light diffusing member 23 by light guide plate 20
Effect is dissipated, is reflected by the importing leaded light plate body 21 of light equilibrium, and in site 24 and the light being arranged on 20 bottom surface of light guide plate
It is further to spread under the action of film 30；
Meanwhile light source two side areas LED light 11 issue light and section central region LED light 11 issue light into
Row light subregion component 23, and under the reflection of the light in light subregion portion 232, the effect through light out part 231, by light radiation to light guide plate
The two sides of body 21, after site 24 and optical reflection film 30 effect, in guide-lighting plate body 21 so that light more equalizes,
Finally projected from the light-emitting surface of light guide plate 20.
The operating process of the present embodiment is just completed in this way.
The utility model further relates to a kind of liquid crystal display device comprising the back with light adjustment effect of above-described embodiment
Optical mode group 100 and the liquid crystal display panel 200 being arranged on backlight module 100.
Backlight module and liquid crystal display device compared to the prior art, the backlight module of the utility model and corresponding liquid
Crystal device is improved by the setting of light diffusing member and the light subregion component positioned at light diffusing member two sides in light guide plate
The surface source luminescence uniformity of the utility model；The light adjustment effect for solving light guide plate in existing backlight module is insufficient, leads
Cause the non-uniform technical problem of surface source luminescence of backlight module.
Although above preferred embodiment is not used in conclusion the utility model is disclosed above with preferred embodiment
To limit the utility model, those skilled in the art can make without departing from the spirit and scope of the utility model
It is various to change and retouch, therefore the protection scope of the utility model subjects to the scope of the claims.
Claims (10)
1. a kind of backlight module with light adjustment effect, which is characterized in that including：
Light source, the LED light including multiple laid out in parallel；And
Light guide plate is arranged on the light direction of the light source；
The light guide plate includes that guide-lighting plate body, the light diffusing member being arranged in described guide-lighting plate body incidence surface one end and setting exist
Two light subregion components for being used to form string light region in light guide plate incidence surface one end；The light diffusing member position
Between the smooth subregion component；
Wherein, light diffusing member described in the light-emitting surface face of the light source middle section, the light-emitting surface of the light source two side areas
Light subregion component described in face is greater than positioned at the distance between LED light of the light source middle section and is located at the light source two sides
The distance between the LED light in region.
2. the backlight module according to claim 1 with light adjustment effect, which is characterized in that between the LED light
Distance is successively decreased from the light source middle section to the two side areas of the light source.
3. the backlight module according to claim 1 with light adjustment effect, which is characterized in that the light source two side areas
The maximum light emitting angle of LED light be covered in the smooth subregion component.
4. the backlight module according to claim 1 with light adjustment effect, which is characterized in that be located at the light source center
In the LED light in region, the light emitting angle part close to the LED light of the light source two side areas covers the smooth subregion component.
5. the backlight module according to claim 1 with light adjustment effect, which is characterized in that be located at the light source center
There are five the LED light settings in region, and the LED light positioned at the light source two side areas is each provided with two.
6. the backlight module according to claim 1 with light adjustment effect, which is characterized in that the light diffusing member packet
Include recessed multiple first arc-shaped concaves in light diffusing member incidence surface one end and the recessed light diffusing member light-emitting surface
Multiple second arc-shaped concaves of one end, first arc-shaped concave and the second arc mirror settings.
7. the backlight module according to claim 1 with light adjustment effect, which is characterized in that the smooth subregion component packet
It includes corresponding to the light out part of the light source two side areas and positioned at the light subregion portion of the light out part and the light source two side areas,
The smooth subregion portion connection is arranged in the two sides of the light out part and extends to the incidence surface of the light guide plate, the smooth subregion portion
The refractive index of part is less than the refractive index of the light conducting plate body.
8. the backlight module according to claim 7 with light adjustment effect, which is characterized in that the light out part is convex arc
Shape, the smooth subregion portion are planar.
9. the backlight module according to claim 7 with light adjustment effect, which is characterized in that two smooth subregion portions
The salient point with astigmatism effect is provided in opposite one side, the salient point is positioned close to one end of the light source.
10. a kind of liquid crystal display device, which is characterized in that any described with light adjustment effect including claim 1 to 9
Backlight module and the liquid crystal display panel being arranged on the backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820738759.3U CN208172452U (en) | 2018-05-16 | 2018-05-16 | Backlight module and corresponding liquid crystal display device with light adjustment effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820738759.3U CN208172452U (en) | 2018-05-16 | 2018-05-16 | Backlight module and corresponding liquid crystal display device with light adjustment effect |
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| Publication Number | Publication Date |
|---|---|
| CN208172452U true CN208172452U (en) | 2018-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820738759.3U Active CN208172452U (en) | 2018-05-16 | 2018-05-16 | Backlight module and corresponding liquid crystal display device with light adjustment effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110675741A (en) * | 2019-09-29 | 2020-01-10 | 厦门天马微电子有限公司 | Backlight module and display device |
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2018
- 2018-05-16 CN CN201820738759.3U patent/CN208172452U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110675741A (en) * | 2019-09-29 | 2020-01-10 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN110675741B (en) * | 2019-09-29 | 2021-10-08 | 厦门天马微电子有限公司 | Backlight module and display device |
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