CN105066013B - Back light source structure and display device - Google Patents
Back light source structure and display device Download PDFInfo
- Publication number
- CN105066013B CN105066013B CN201510601328.3A CN201510601328A CN105066013B CN 105066013 B CN105066013 B CN 105066013B CN 201510601328 A CN201510601328 A CN 201510601328A CN 105066013 B CN105066013 B CN 105066013B
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- Prior art keywords
- light source
- source structure
- back light
- support member
- hole
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of back light source structure and display device.Wherein, the back light source structure includes：Backboard, glue frame and optical film material, the backboard include bottom plate and the side wall vertical with the bottom plate, and the glue frame is arranged on the side wall, and the glue frame includes the planar support member for being used to support the optical film material, wherein, the back light source structure also includes：The first light source being correspondingly arranged on the bottom plate and with the planar support member；Through hole is offered on the planar support member, the light that first light source is sent can be transmitted through the optical film material by the through hole.Pass through the present invention, it is to avoid the incidental edge obfuscation phenomenon of display panel, reached that increase improves the effect of the effective display area of display panel and the visual experience of user.
Description
Technical field
The present invention relates to display technology field, more particularly, to a kind of back light source structure and display device.
Background technology
At present, mosaic screen such as shows at the narrow frame design increasing prevalence, and narrow frame design refers to Module Bezel (module sides
Frame, i.e. front frame) width be less than the design methods of conventional products, the design method can increase the effective display area of product,
And the visual impact of user is improved, it is the striving direction of current all big enterprises.
Although narrow frame product attracts eyeball, but itself still has many problems.The phenomenon for example, edge shades, should
Being embodied in bad phenomenon in direct-type backlight product-derived, because in direct-type backlight product-derived, frame glue is included parallel to diffusion more
The part of plate, it is used for the blooming pieces such as supporting diffusion plate, so, and diffuser plate has the overlapping region for supporting with glue frame.
In order to ensure the support effect of glue frame, it is to avoid supported member (such as blooming piece) is not enough collapsed because of support degree, frame glue is put down
Row is larger in the part of diffuser plate, and it is larger to the region that diffuser plate center extends, that is to say, that diffuser plate is overlapping with glue frame
Region is larger, and the overlapping region often takes part viewing area (A-A regions).It so may result in the light that backlight is sent
Line can not by overlapping region, cause display panel correspond to overlapping region part compared to other viewing areas brightness not
Consistent phenomenon.
The content of the invention
It is a primary object of the present invention to provide a kind of can avoid because the diffuser plate in straight-down negative product and glue frame are deposited
The light for causing backlight to send in overlapping supporting zone can not be by overlapping region, so as to cause narrow frame product easily to occur
Edge shade phenomenon technical scheme.
In order to achieve the above object, the invention provides a kind of back light source structure, including backboard, glue frame and optical film material,
The backboard includes bottom plate and the side wall vertical with the bottom plate, and the glue frame is arranged on the side wall, and the glue frame includes
Planar support member for supporting the optical film material, wherein, the back light source structure also includes：On the bottom plate and with
The first light source that the planar support member is correspondingly arranged；Through hole is offered on the planar support member, first light source is sent
Light the optical film material can be transmitted through by the through hole.
Preferably, the glue frame also includes erectting as formed by the planar support member towards bottom plate direction extension
Supporting part, the setting supporting part and the side wall one closing space of formation；First light source is arranged at the closing space
It is interior.
Preferably, the through hole can be covered all by being additionally provided between the planar support member and the optical film material
Light diffusing member, for being diffused from first light source and by the light of the through hole.
Preferably, the light diffusing member be set directly on the surface of the planar support member can cover all it is logical
The region in hole.
Preferably, it is located on the planar support member around the through hole and is provided with a groove, for accommodates the light
Proliferation part.
Preferably, the thickness of the light diffusing member is 0.3mm~1.5mm.
Preferably, the material of the light diffusing member includes：Silicone band, polymethyl methacrylate (PMMA), poly- carbonic acid
Ester (PC) or copolymer of methyl methacrylatestyrene (MS).
Preferably, multiple secondary light sources, second light are provided with the region surrounded on the bottom plate by the glue frame
The size in source is more than the size of first light source.
Preferably, first light source and the secondary light source include multiple brightness gears；The back light source structure is also
Including：For adjusting the first brightness adjusting unit that the brightness gear of first light source is adjusted, and for adjusting described second
Second brightness adjusting unit of the brightness gear regulation of light source；Control unit, for control first brightness adjusting unit and
The regulation stall of second brightness adjusting unit so that first light source and the secondary light source pass through the light of the optical film material
Brightness be consistent.
Present invention also offers a kind of display device, the display device includes：Above-mentioned back light source structure.
Compared with prior art, back light source structure of the present invention and display device, the light that can send backlight
Then line can reach display panel by the through hole that is opened up on planar support member through light diffusing member and optical film material, from
And the incidental edge obfuscation phenomenon of display panel is avoided, the effective display area and use for improving display panel can be increased
The visual experience at family.
Brief description of the drawings
Fig. 1 is the schematic diagram of big view straight-down negative display floater frame；
Fig. 2 is a kind of design diagram of back light source structure according to embodiments of the present invention；And
Fig. 3 is the design diagram of another back light source structure according to embodiments of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, the institute that one of ordinary skill in the art is obtained on the premise of creative work is not made
There is other embodiment, belong to the scope of protection of the invention.
Before the embodiment of the present invention is described in detail below, understand for ease of contrast, can be referring again to Fig. 1, diffuser plate
There is overlapping supporting zone with glue frame, and the light that backlight is sent can not cause the overlapping region to show by overlapping region
It is dark, form one big visual angle dark space from the point of view of user perspective, the effective display area domain (i.e. A-A areas) of display panel or even serious
When edge pixel can be caused to disappear.
To solve the above problems, the embodiments of the invention provide a kind of back light source structure.
As shown in Figures 2 and 3, back light source structure can include backboard 1, glue frame 2 and optical film material 3；
The backboard 1 includes bottom plate 11 and the side wall 12 vertical with the bottom plate 11；The glue frame 2 is arranged on the side wall
On 12, the glue frame 2 includes the planar support member 21 for being used to support the optical film material 3；
The back light source structure also includes：Be correspondingly arranged on the bottom plate 11 and with the planar support member 21
One light source 4；Through hole 22 is offered on the planar support member 21, the light that first light source 4 is sent can be by the through hole
22 are transmitted through the optical film material 3.
The backlight that above-described embodiment is provided, the weight overlapping, for supporting optical film material that diffuser plate is formed with glue frame
Folded supporting zone carries out via design, and it is corresponding with overlapping region that the light that such backlight is sent can reach display panel by through hole
Viewing area, increase the brightness in the region, it is to avoid the problem of edge pixel brightness is relatively low.In addition, being led in supporting zone
Hole is designed, and so, the supporting surface size of supporting zone is not just limited by light, and in the case where other conditions allow, supporting zone can
It is as big as possible, it is ensured that good support effect.
As can be seen that the glue frame 2 also includes by the planar support member 21 towards the bottom plate 11 from Fig. 2 and Fig. 3
Supporting part 23 (timbering with rafter arch sets portion can be referred to as), the setting supporting part 23 and the side are erect formed by the extension of direction
One closing space of the formation of wall 12 (because it is not a specific part, is not indicated) in figs. 2 and 3, and first light source 4 is set
It is placed in the closing space.
So, due to offering through hole 22 on the planar support member 21, and the first light source 4 is arranged on planar support
In the closing space of the lower section of portion 21, the light that first light source 4 is sent can just pass through the through hole 22, and pass through institute
State the light scattering of optical film material 3 and reach display panel, that is to say, that the purpose of the design through hole 22 is exactly by the example of bottom
The light that such as LED backlight 4 is sent smoothly is exported.
Moreover, the planar support member 21 played a supporting role in glue frame 2 can freely be widened, backlight is not being influenceed
On the premise of design, ensure that the supporting surface of diffuser plate, it is to avoid support force deficiency cause collapse it is bad.
Certainly, the design aperture of the through hole 22 is necessarily limited by the size of the planar support member 21, because
This its can not possibly design it is very big (in theory it is maximum be also just designed as it is identical with the width of the closing space, and in actual process
What is so designed is probably very little), this light that first light source 4 can be caused to send only has small part can be by described
Through hole 22.
Based on this, in order that the utilization rate for the light for passing through the through hole 22 is improved, in embodiments of the present invention, described
The light diffusing member 5 of the through hole 22 can be covered all by being additionally provided between planar support member 21 and the optical film material 3,
The light scattering part 5 is mainly used in being diffused from first light source 4 and by the light of the through hole 22.Thus may be used
So as to fully be scattered by the light of the through hole 22, light utilization can be improved.
Mode for setting the light diffusing member 5, two ways is given in the embodiment of the present invention：
(1) direct set-up mode, as shown in Fig. 2 the light diffusing member 5 can be arranged directly on the planar support member
On 21 surface and it can cover all the region of through hole 22.
(2) fluting set-up mode, is set as shown in figure 3, being located on the planar support member 21 around the through hole 22
There is a groove 24, for accommodating the light diffusing member 5.
In embodiments of the present invention, the thickness of the light diffusing member 5 is 0.3mm~1.5mm.Optionally, light diffusion part
The thickness of part 5 is 0.5mm or 1.0mm etc..
Certainly, this is only to be not so limited in a preferable thickness range of light diffusion effect, actual design, as long as
It is that the scattering purpose to the light through the through hole 22 can be achieved to set a light diffusing member 5.Light scattering part 5 can be adopted
With the light transmission features preferably organic transparent material such as silica gel, light scattering part 5 is designed to through hole 22 described in form fit
Silicone band (transparent silica gel in addition light diffusion particle optimal), the light that can will transmit through the through hole 22 by the silicone band is beaten
Dissipate, then radiated upwards by diffuser plate and diaphragm (i.e. optical film material), reach the purpose of supply backlight.
In embodiments of the present invention, the material of the light diffusing member 5 can also be used except that can use silicone band
Material includes：Polymethyl methacrylate (PMMA), makrolon (PC) or copolymer of methyl methacrylatestyrene
(MS).In actual applications, this different materials is designed to that the band-like film of subsidiary site is optimal.
Certainly, the light transmittance of this different materials and light diffusion effect are relatively good, in practical application, can take other saturating
Lightness is higher and the preferable material of light diffusion effect is realized.
In embodiments of the present invention, (i.e. A- in Fig. 2 or Fig. 3 in the region surrounded on the bottom plate 11 by the frame of glue 2
A-quadrant) multiple secondary light sources 6 are provided with, the size of the secondary light source 6 is more than the size of first light source 4.
That is, larger-size such as LED etc backlight can be used in effective display area domain (A-A regions)
Size can be used less such as because space width is limited in the closing space below source, the planar support member 21
LED etc backlight.
In embodiments of the present invention, first light source 4 and the secondary light source 6 may each comprise multiple brightness gears；
In order to carry out gear regulation, the back light source structure also includes：For adjusting the brightness gear of first light source 4 is adjusted the
One brightness adjusting unit, and for adjusting the second brightness adjusting unit that the brightness gear of the secondary light source 6 is adjusted；Control is single
Member, the regulation stall for controlling first brightness adjusting unit and the second brightness adjusting unit so that first light source 4
Brightness with the secondary light source 6 through the light of the optical film material 3 is consistent.
As can be seen that the embodiment of the present invention is redesigned by the glue frame to existing structure, two groups of backlights are set
(i.e. the first light source and secondary light source), such as two groups of light sources use LED light group, and can carry out brightness control respectively,
In practical application, brilliance control can be carried out by setting voltage, control brightness is changed between each adjustable gear, with
Just the brightness in other regions of matching backlight, it is ensured that uniformity.Pass through such a mode, it is possible to resolve the obfuscation of narrow frame product edge
Problem.
The embodiment of the present invention additionally provides a kind of display device, and the display device includes：Above-mentioned back light source structure.The display
Device can apply to mobile phone, tablet personal computer, television set, display, notebook computer, DPF, navigator, wearable set
Any product or part with display function such as standby.Because the main improvement of the display device is above-mentioned back light source structure,
And above above-mentioned back light source structure is described in detail, the display device is not carried out in detail in conjunction with accompanying drawing herein
Description.
Certainly, in practical application, the electronic equipment that many kinds need to have display function can also be integrally disposed above-mentioned aobvious
Showing device.
By backlight design mode provided in an embodiment of the present invention, existing narrow frame product can be solved due to diffuser plate
There is the problem of shading bad in overlapping region with glue frame, while increase adjustment can be carried out to the Area of bearing of diffuser plate, this
Sample can ensure the support strength to diffuser plate and diaphragm, and backlight design mode is primarily adapted for use in the production of straight-down negative narrow frame in this
Product back light source structure.
Described above is the preferred embodiment of the present invention, it is noted that for the person of ordinary skill of the art,
On the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications should also be regarded
For within protection scope of the present invention.
Claims (9)
1. a kind of back light source structure, including backboard, glue frame and optical film material, the backboard include bottom plate and vertical with the bottom plate
Side wall, the glue frame is arranged on the side wall, and the glue frame includes the planar support member for being used to support the optical film material,
Characterized in that, the back light source structure also includes：
The first light source being correspondingly arranged on the bottom plate and with the planar support member；
Through hole is offered on the planar support member, the light that first light source is sent can be transmitted through described by the through hole
Optical film material；
The light diffusion part of the through hole can be covered all by being additionally provided between the planar support member and the optical film material
Part, for being diffused from first light source and by the light of the through hole.
2. back light source structure according to claim 1, it is characterised in that：
The glue frame also includes erectting supporting part as formed by the planar support member towards bottom plate direction extension, described
Erect supporting part and the side wall one closing space of formation；
First light source is arranged in the closing space.
3. back light source structure according to claim 2, it is characterised in that the light diffusing member is set directly at described flat
The region of through hole can be covered all on the surface of face supporting part.
4. back light source structure according to claim 2, it is characterised in that positioned at the through hole on the planar support member
Surrounding is provided with a groove, for accommodating the light diffusing member.
5. the back light source structure according to any one of claim 2 to 4, it is characterised in that the thickness of the light diffusing member
Spend for 0.3mm~1.5mm.
6. back light source structure according to claim 5, it is characterised in that the material of the light diffusing member includes：Silica gel
Band, polymethyl methacrylate, makrolon or copolymer of methyl methacrylatestyrene.
7. back light source structure according to claim 1, it is characterised in that the region surrounded on the bottom plate by the glue frame
Multiple secondary light sources are inside provided with, the size of the secondary light source is more than the size of first light source.
8. back light source structure according to claim 7, it is characterised in that：
First light source and the secondary light source include multiple brightness gears；
The back light source structure also includes：
For adjusting the first brightness adjusting unit that the brightness gear of first light source is adjusted, and for adjusting second light
Second brightness adjusting unit of the brightness gear regulation in source；
Control unit, the regulation stall for controlling first brightness adjusting unit and the second brightness adjusting unit so that institute
The brightness that the first light source and the secondary light source are stated through the light of the optical film material is consistent.
9. a kind of display device, it is characterised in that including：Back light source structure any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510601328.3A CN105066013B (en) | 2015-09-18 | 2015-09-18 | Back light source structure and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510601328.3A CN105066013B (en) | 2015-09-18 | 2015-09-18 | Back light source structure and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105066013A CN105066013A (en) | 2015-11-18 |
| CN105066013B true CN105066013B (en) | 2017-08-11 |
Family
ID=54495450
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510601328.3A Active CN105066013B (en) | 2015-09-18 | 2015-09-18 | Back light source structure and display device |
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| Country | Link |
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| CN (1) | CN105066013B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179632A (en) * | 2017-07-31 | 2017-09-19 | 厦门天马微电子有限公司 | Backlight module, display module and display device |
| CN108322578B (en) * | 2018-04-20 | 2020-08-25 | 维沃移动通信有限公司 | Mobile terminal |
| CN108873482A (en) * | 2018-08-16 | 2018-11-23 | 惠州市华星光电技术有限公司 | splicing display device |
| CN109521600A (en) * | 2018-10-23 | 2019-03-26 | 惠州市华星光电技术有限公司 | A kind of backlight module and its display device |
| CN109507822A (en) * | 2019-01-14 | 2019-03-22 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| TWI703386B (en) * | 2019-07-31 | 2020-09-01 | 友達光電股份有限公司 | Backlight module |
| CN111880336A (en) * | 2020-07-31 | 2020-11-03 | 深圳创维－Rgb电子有限公司 | Backlight assembly and liquid crystal display module |
| CN111880337A (en) * | 2020-07-31 | 2020-11-03 | 深圳创维－Rgb电子有限公司 | Backlight assembly and liquid crystal display module |
| CN113064302A (en) * | 2021-03-29 | 2021-07-02 | 京东方科技集团股份有限公司 | Display module and electronic equipment |
| WO2023272482A1 (en) * | 2021-06-29 | 2023-01-05 | 京东方科技集团股份有限公司 | Backlight assembly, display panel and display device |
| WO2023070561A1 (en) * | 2021-10-29 | 2023-05-04 | 京东方科技集团股份有限公司 | Display module, display apparatus, and backlight module |
| CN116368427A (en) * | 2021-10-29 | 2023-06-30 | 京东方科技集团股份有限公司 | Display module and middle frame |
| CN217156995U (en) * | 2021-12-08 | 2022-08-09 | 华为技术有限公司 | Display device |
| CN114326207A (en) * | 2021-12-27 | 2022-04-12 | 广州华星光电半导体显示技术有限公司 | Backlight module and display device |
| CN114624924B (en) * | 2022-03-22 | 2023-08-22 | 北京京东方显示技术有限公司 | display device |
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| CN105066013A (en) | 2015-11-18 |
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