CN208239658U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN208239658U CN208239658U CN201820936584.7U CN201820936584U CN208239658U CN 208239658 U CN208239658 U CN 208239658U CN 201820936584 U CN201820936584 U CN 201820936584U CN 208239658 U CN208239658 U CN 208239658U
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- incidence surface
- light source
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Abstract
The utility model relates to a kind of backlight modules, include light source and light guide plate.Light guide plate has the incidence surface towards light source.The side plate bending that incidence surface has horizontal segment and is recessed towards the direction far from light source, multiple first micro-structures are set on horizontal segment, multiple second micro-structures are set in side plate bending, the section of every one first micro-structure and every one second micro-structure is triangular in shape and the tip of every one first micro-structure and every one second micro-structure is towards light source, and second micro-structure of the first micro-structure and a part is asymmetric structure.It designs, the light of light source can be guided to the central location of light guide plate whereby, promote whole even brightness, to be applied on the non-rectangle light guide plate such as Vehicular instrument board.The utility model also provides a kind of display device comprising backlight mould group.
Description
Technical field
The utility model relates to a kind of light source module group, in particular to a kind of backlight module and its answering on the display apparatus
With.
Background technique
Backlight module can be divided into side entering type according to the difference of light incoming position and enter light (edge lighting) and straight-down negative
Enter two kinds of light (bottom lighting), is commonly used for various information, communication, in consumer products, uses to the said goods
Liquid crystal display (Liquid Crystal Display, LCD) provides area source.
Known light guide plate is generally rectangular, and incidence surface is plane, and light source is multiple spaced illuminating parts, is shone
Part is arranged along the incidence surface of light guide plate in a linear fashion, so that brightness uniformity of the light guide plate in each position of incidence surface.
However, incidence surface is curved surface, at this point, if illuminating part is equally with curve side when light guide plate is irregular shape
The light that formula arrangement but illuminating part issue still concentrate on then will lead to directly to direction light guide plate intermediate region it is partially dark, it is whole bright
Degree is uneven.
Utility model content
Therefore, the purpose of this utility model, being to provide a kind of can make the uniform backlight module of overall brightness.
The backlight module of the utility model includes light source and light guide plate.Light guide plate have towards light source incidence surface and
Every multiple first micro-structures and multiple second micro-structures being set on incidence surface.Wherein, incidence surface has at least one horizontal
Section and the side plate bending being recessed towards the direction far from light source, the first micro-structure are located on horizontal segment, and the second micro-structure is located at side plate bending
On, the section of every one first micro-structure is triangular in shape and the tip of every one first micro-structure is towards light source, and every one first micro-
Structure has the first side and second side that intersect with each other, and first side each first side and enters light towards side plate bending
The angle in face is less than the angle of each second side and incidence surface, and the section of every one second micro-structure is triangular in shape and every one second
The tip of micro-structure is towards light source, and every one second micro-structure has the third side to intersect with each other and four side, definition
The center line in the center by side plate bending, third side is towards center line, in the second micro-structure, closer to center line person, the
The angle of three sides and incidence surface can be bigger, and the angle of four side and incidence surface can be smaller.
Another technological means of the utility model, be incidence surface have apart from one another by two horizontal segments, cambered surface section
Between two horizontal segments and connect two horizontal segments.
The another technological means of the utility model, be the first side of every one first micro-structure area be less than its second
The area of side.
Another technological means of the utility model is that light source includes that spaced multiple first illuminating parts are set with interval
Multiple second illuminating parts set, the first illuminating part are parallel to the setting of horizontal segment interval, and the second illuminating part is along side plate bending and correspondence
It is arranged in the curvature interval of side plate bending.
Another technological means of the utility model, is to be set to the third side of the second micro-structure on center line and enters
The angle of smooth surface is equal to the angle of its four side and incidence surface.
The another object of the utility model is to provide a kind of display device comprising backlight mould group.
The display device of the utility model includes backlight mould group and the display panel being set on backlight module.
The beneficial functional of the utility model is, by the first micro-structure and the second micro-structure being arranged on light guide plate,
It can change the angle that light enters light guide plate, reduce the generation of intermediate region shadow, promote whole even brightness.
Detailed description of the invention
Fig. 1 is the schematic diagram for illustrating the preferred embodiment of backlight module of the utility model；
Fig. 2 is the schematic diagram for the amplification aspect that the frame in explanatory diagram 1 shows place A；
Fig. 3 is the schematic diagram for the amplification aspect that the frame in explanatory diagram 1 shows place B；And
Fig. 4 is that whether there is or not the curve graphs of the luminance of horizontal direction when micro-structure to compare.
Specific embodiment
Relevant scope and technology contents in relation to the utility model, will be in the preferred embodiment below with reference to attached drawing
It is clearly presented in detailed description.Before being described in detail, it is noted that similar component is with being identically numbered come table
Show.
Fig. 1 shows the preferred embodiment of the backlight module of the utility model, refering to fig. 1, backlight module include light source 2 and
Light guide plate 3.Light guide plate 3 is with the incidence surface 31 towards light source 2 and multiple first micro-structures being arranged at intervals on incidence surface 31
32 and multiple second micro-structures 33.Backlight module also sets up panel in its exit positions, thus constitutes display device.
Wherein, incidence surface 31 tool there are two apart from one another by horizontal segment 311 and towards far from light source 2 direction be recessed cambered surface
Section 312, side plate bending 312 is located between two horizontal segments 311 and two horizontal segments 311 of connection.First micro-structure 32 is located at level
In section 311, the second micro-structure 33 is located in side plate bending 312.It can be seen that this preferred embodiment application from the shape of light guide plate 3
On the non-rectangle light guide plate 3 such as such as Vehicular instrument board.
Light source 2 include spaced multiple first illuminating parts 21 and spaced multiple second illuminating parts 22, first
Illuminating part 21 is parallel to the setting of the interval of horizontal segment 311, and the second illuminating part 22 is along side plate bending 312 and corresponds to side plate bending 312
The setting of curvature interval.
Refering to Fig. 2 and cooperate Fig. 1, the section of every one first micro-structure 32 is triangular in shape and the point of every one first micro-structure 32
End is towards light source 2, and every one first micro-structure 32 has the first side 321 and second side 322 to intersect with each other.First side
Side 321 is towards side plate bending 312, and the angle theta of each first side 321 and incidence surface 311Less than each second side 322 with enter
The angle theta of smooth surface 312, and the area of the first side 321 of every one first micro-structure 32 is less than the area of second side 322.?
In the present embodiment, the angle theta of each first side 321 and incidence surface 311Angle between 125 ° to 144 °, every one second
The angle theta of side 322 and incidence surface 312Angle between 146 ° to 165 °.
Refering to Fig. 3 and cooperate Fig. 1, the section of every one second micro-structure 33 is triangular in shape and the point of every one second micro-structure 33
End is towards light source 2, and every one second micro-structure 33 has the third side 331 to intersect with each other and four side 332.Definition warp
The center line L in the center of side plate bending 312 is crossed, third side 331 is towards center line L.In second micro-structure 33, closer to center line
L person, the angle theta of third side 331 and incidence surface 313It can bigger, the angle theta of four side 332 and incidence surface 314It can get over
It is small.In the present embodiment, near the angle theta of the third side 331 of the second micro-structure 33a of center line L and incidence surface 313For
139 °, the angle theta of the four side 332 and incidence surface 31 of the second micro-structure 33a4It is 141 °.Second farthest away from center line L is micro-
The third side 331 of structure 33b and the angle theta of incidence surface 313It is 126 °, the four side 332 of the second micro-structure 33b and enters light
The angle theta in face 314It is 164 °.The second micro-structure 33 being set on center line L, the angle theta of third side and incidence surface3Then
Equal to the angle theta of four side and incidence surface4, in the present embodiment, two angles are all 140 °.It can be with by the above real data
Find out, the angle theta of the second micro-structure 333Really towards close to center line L direction it is cumulative (by 126 ° increase to 139 ° be further added by
140 °), and the angle theta of the second micro-structure 334Really it decrescence (is reduced by 164 ° to 141 ° and is subtracted again towards the direction close to center line L
As little as 140 °).The angle theta of second micro-structure 334It is from 165 ° to 140 ° from outermost to the variation range of center line L；Accordingly
Angle theta3Variation range be from 125 ° to 140 °.It should be particularly noted that, since the second micro-structure 33 is set to side plate bending
On 312, therefore the angle of the second micro-structure 33 is by measurement by third side 331 or four side 332 and incidence surface 31
Crosspoint tangent line it is obtained, tangent line is that those of ordinary skill in the art are to understand, therefore is not drawn still further in figure
Show.
As shown in Figure 1, by the tilt angle of the first side 321 of every one first micro-structure 32 and second side 322 with
The asymmetrical design of area makes the light of the first illuminating part 21 after by the first micro-structure 32, can generate towards center line L's
The effect of direction offset.Similarly, the design of the second micro-structure 33 can also be such that the light of the second illuminating part 22 generates towards center line L's
The effect of direction offset.Since the second micro-structure 33 is set in side plate bending 312, the third side of every one second micro-structure 33
The angle of each of side 331 and four side 332 and incidence surface 31 can with the second micro-structure 33 relative to center line L at a distance from
It changes, the angle of light guide plate 3 is entered thus, it is possible to adjust the light of the second illuminating part 22, the optical mode so that light can support or oppose
In the centralized of group, intermediate region brightness is promoted.
Fig. 4 is resulting along the rightmost side of the arrow X in Fig. 1 from leftmost side cross measure to the light guide plate 3 of light guide plate 3
Luminance.From fig. 4, it can be seen that when the first micro-structure 32 and the second micro-structure 33 is arranged (dotted portion in Fig. 4), light guide plate
3 integral brightness is average, and relative luminance all maintains between 0.8 to 1.Conversely, (Fig. 4 when being not provided with any micro-structure
In bold portion), the relative luminance of intermediate region obviously drops to 0.7 or so, and intermediate region is partially dark, thus affects entirety
Even brightness.
To sum up, the backlight module and display device of the utility model, by the first micro-structure 32 being arranged on light guide plate 3 and
Second micro-structure 33, thus it is possible to vary light enters the angle of light guide plate 3, reduces the generation of intermediate region shadow, is promoted whole even
Brightness can be applied to that the mesh of the utility model can actually be reached on the non-rectangle light guide plate 3 such as Vehicular instrument board whereby
's.
The above is only the preferred embodiment of the present invention, and the implementation model of the utility model should cannot be limited with this
It encloses, i.e., all still belongs to according to simple equivalent changes and modifications made by the scope of the patents and description of the utility model generally
The patent covering scope of the utility model.
[reference signs list]
2 light sources
21 first illuminating parts
22 second illuminating parts
3 light guide plates
31 incidence surfaces
311 horizontal segments
312 side plate bendings
32 first micro-structures
321 first sides
322 second sides
33 second micro-structures
The second micro-structure of 33a
The second micro-structure of 33b
331 third sides
332 four sides
A frame shows place
B frame shows place
L center line
X arrow
θ1Angle
θ2Angle
θ3Angle
θ4Angle
Claims (6)
1. a kind of backlight module, includes:
Light source；And
Light guide plate, with the incidence surface towards the light source and multiple first micro-structures being arranged at intervals on the incidence surface
And multiple second micro-structures, wherein the incidence surface has at least one horizontal segment and is recessed towards the direction far from the light source
Side plate bending, first micro-structure is located on the horizontal segment, and second micro-structure is located in the side plate bending, every 1
The section of one micro-structure is triangular in shape and the tip of every one first micro-structure is towards the light source, and every one first micro-structure has
There is a first side and second side to intersect with each other, the first side is towards the side plate bending, and each first side and institute
The angle for stating incidence surface is less than the angle of each second side and the incidence surface, and the section of every one second micro-structure is triangular in shape
And the tip of every one second micro-structure is towards the light source, and every one second micro-structure have the third side to intersect with each other and
Four side is defined through the center line in the center of the side plate bending, and the third side is towards the center line, and described second
In micro-structure, closer to the center line, the angle of third side and the incidence surface can be bigger, four side with it is described
The angle of incidence surface can be smaller.
2. backlight module according to claim 1, wherein the incidence surface have apart from one another by two horizontal segments, institute
Side plate bending is stated between described two horizontal segments and connects described two horizontal segments.
3. backlight module according to claim 1, wherein the area of the first side of every one first micro-structure be less than its
The area of dual side-edge.
4. backlight module according to claim 1, wherein the light source include spaced multiple first illuminating parts with
Spaced multiple second illuminating parts, first illuminating part are parallel to the horizontal segment interval setting, and described second shines
Part is arranged along the side plate bending and corresponding to the curvature interval of the side plate bending.
5. backlight module according to claim 1, wherein be set to of second micro-structure on the center line
The angle of three sides and the incidence surface is equal to the angle of its four side and the incidence surface.
6. a kind of display device, includes:
Backlight module according to any one of claim 1 to 5；And
The display panel being set on the backlight module.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820656028 | 2018-05-03 | ||
| CN2018206560284 | 2018-05-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208239658U true CN208239658U (en) | 2018-12-14 |
Family
ID=64574391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820936584.7U Active CN208239658U (en) | 2018-05-03 | 2018-06-14 | Backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208239658U (en) |
-
2018
- 2018-06-14 CN CN201820936584.7U patent/CN208239658U/en active Active
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