CN203337958U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN203337958U CN203337958U CN2013204528027U CN201320452802U CN203337958U CN 203337958 U CN203337958 U CN 203337958U CN 2013204528027 U CN2013204528027 U CN 2013204528027U CN 201320452802 U CN201320452802 U CN 201320452802U CN 203337958 U CN203337958 U CN 203337958U
- Authority
- CN
- China
- Prior art keywords
- light
- incidence surface
- optical fiber
- backlight module
- display device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The utility model relates to the technical field of display, in particular to a backlight module and a display device comprising the backlight module. The backlight module comprises a light guiding plate which comprises a front incident face and a side incident face, a light emitting element is arranged on the front incident face, and light emitting parts of a plurality of optical fibers are arranged on the side incident face; or the light emitting element is arranged on the side incident face, and the light emitting parts of the optical fibers are arranged on the front incident face. The optical fibers are provided with incident ends used for guiding environment light in. According to the backlight module, brightness of output images is improved, the contrast ratio of the display device under a high-brightness environment is improved, environment light is fully utilized, no extra energy consumption is used, energy is saved, and the environment is protected. Under environment light, the problem that the contrast ratio of a display device under the environment light is not good is solved, and the display effect is improved. Meanwhile, due to the fact that a part of environment light has good color rendering index, and the liquid crystal display color gamut is wider and more beautiful.
Description
Technical field
The utility model relates to the display technique field, particularly a kind of backlight module and the display device of applying this backlight module.
Background technology
Thin Film Transistor-LCD (Thin Film Transistor-Liquid Crystal Display, TFT-LCD) owing to having, picture is stable, image fidelity, elimination radiation, save space and save the advantages such as energy consumption, be widely used in, in the electronic products such as TV, mobile phone, display, having occupied the leading position in demonstration field, plane.
Because liquid crystal panel itself is not luminous, therefore need backlight module to provide light source for it.Backlight module, according to the distributing position of light-emitting component, can be divided into direct-type backlight or side entrance back.Direct-type backlight liquid crystal display of the prior art generally is used on large-scale LCD TV, and structure from top to bottom is the assemblies such as metal backing, reflector plate, light-emitting component, diffusion sheet, brightness enhancement film and glue frame successively.The side entrance back liquid crystal display generally is used on notebook computer, watch-dog and small-sized LCD TV, structure from top to bottom is successively: the assemblies such as metal back frame, reflector plate, light guide plate, diffusion sheet, brightness enhancement film and glue frame, wherein light-emitting component is arranged on the side of light guide plate.
In prior art, no matter be direct-type backlight liquid crystal display or side entrance back liquid crystal display, the beholder is when watching the image of output, capital is subject to the catoptrical impact of natural light on liquid crystal display, wherein natural light is environment light source, such as outdoor sunshine or indoor light etc.
Prior art for the settling mode of the problems referred to above is, the luminous power of the backlight module of liquid crystal display is promoted to several times, thereby increase the brightness of the image of output, improve the contrast of display under high-brightness environment, make the beholder can identify the image of display output, but can consume a large amount of electric energy so on the one hand, be unfavorable for reducing energy consumption, increase on the other hand the radiating requirements of display, reduced the serviceable life of display.
The utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model is, for the deficiencies in the prior art, the display device that a kind of backlight module is provided and applies this backlight module, utilize surround lighting as the backlight module secondary light source, thereby increase the brightness of the image of output, improved the contrast of display device under high-brightness environment.
(2) technical scheme
Technical solutions of the utility model are as follows:
A kind of backlight module, comprise light guide plate; Described light guide plate comprises positive incidence surface and side incidence surface;
Light-emitting component is arranged on described positive incidence surface, and the light out part of some optical fiber divides and is arranged on described side incidence surface; Perhaps,
Light-emitting component is arranged on described side incidence surface, and the light out part of some optical fiber divides and is arranged on described positive incidence surface;
Described optical fiber has the light inputting end that imports surround lighting.
Preferably, all or part of protective seam that described optical fiber is positioned at side incidence surface or positive incidence surface position is stripped from, and exposes fibre core, forms described bright dipping part.
Preferably, described protective seam comprises and is coated on the covering on described fibre core and is coated on the coat on described covering.
Preferably, described light-emitting component is arranged on the side incidence surface, and the light out part of described optical fiber divides while being arranged on positive incidence surface, and described backlight module also comprises the reflector plate be oppositely arranged with described positive incidence surface; The light out part of optical fiber divides and is arranged between described light guide plate and reflector plate.
Preferably, described optical fiber is stripped near the protective seam of a side of positive incidence surface and/or close reflector plate.
Preferably, the bright dipping of described some optical fiber part is arranged in described positive incidence surface uniformly.
Preferably, described light-emitting component is arranged on positive incidence surface, and the light out part of described optical fiber divides while being arranged on the side incidence surface, and described optical fiber is stripped near the protective seam of a side of side incidence surface.
The utility model also provides a kind of a kind of display device that comprises above-mentioned any one backlight module.
Preferably, the light inputting end of described optical fiber is positioned at the outside of described display device.
Preferably, described light inputting end is hemispherical.
(3) beneficial effect
Backlight module provided by the utility model, by optical fiber, surround lighting is directed into to backlight module, utilize surround lighting as the backlight module secondary light source, thereby increased the brightness of the image of output, improved the contrast of display device under high-brightness environment, not only utilize fully surround lighting, do not increase extra energy consumption, energy-conserving and environment-protective, and under surround lighting, solved the bad problem of display device contrast under surround lighting, improve display effect, simultaneously for example, because component environment light (sunshine) has good colour rendering index, can make the colour gamut of liquid crystal display wider more beautiful.
The accompanying drawing explanation
Fig. 1 is a kind of implementation schematic diagram of backlight module in the utility model embodiment;
Fig. 2 is fibre bundle distributed architecture schematic diagram in Fig. 1;
Fig. 3 is the another kind of implementation schematic diagram of backlight module in the utility model embodiment;
Fig. 4 is fibre bundle distributed architecture schematic diagram in Fig. 3;
Fig. 5 is another implementation schematic diagram of backlight module in the utility model embodiment;
Fig. 6 is fibre bundle distributed architecture schematic diagram in Fig. 5;
Fig. 7 is the cross section structure schematic diagram of optical fiber in the utility model embodiment;
Fig. 8 is the structural representation of optical fiber light inputting end in the utility model embodiment.
In figure: 11: reflector plate; 12: light guide plate; 13: diffusion sheet; 14: brightness enhancement film; 15: light-emitting component; 16: optical fiber; 161: fibre core; 162: protective seam; 163: covering; 164: coat; 165: light inputting end; 17: back of the body frame.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described further.Following examples are only for the utility model is described, but are not used for limiting scope of the present utility model.
Backlight module provided by the utility model, mainly comprise the assemblies such as reflector plate, light guide plate, light-emitting component, diffusion sheet, brightness enhancement film and glue frame; The one side of light guide plate is positive incidence surface, and another side is exiting surface, and side is the side incidence surface; Light-emitting component is arranged on positive incidence surface, and the light out part of some optical fiber divides and is arranged on the side incidence surface; Perhaps, light-emitting component is arranged on the side incidence surface, and the light out part of some optical fiber divides and is arranged on positive incidence surface; Optical fiber comprises light inputting end, import from light inputting end to optical fiber surround lighting is arranged, surround lighting divides and enters light guide plate from the light out part of optical fiber, thereby utilizes surround lighting as the backlight module secondary light source, increase the brightness of the image of output, improved the contrast of display device under high-brightness environment.Below, with the side entrance back module, light-emitting component is arranged on the side incidence surface of light guide plate, and it is that example is described in detail the backlight module in the utility model that the light out part of optical fiber divides the backlight module of the positive incidence surface that is arranged on light guide plate.
Backlight module as shown in Fig. 1, Fig. 3 and Fig. 5, mainly comprise the assemblies such as reflector plate 11, light guide plate 12, light-emitting component 15, diffusion sheet 13, brightness enhancement film 14, back of the body frame 17 and glue frame (not shown), the light out part of optical fiber 16 divides and is arranged between light guide plate 12 and reflector plate 11.
The Main Function of light guide plate 12 is that light-emitting component 15 is incided to the light beam of side incidence surface and the upwards guiding of homogenizer ground that divides the positive incidence surface of incident from the light out part of optical fiber 16, and the brightness that its structure and material are final to backlight module and homogeneity play a part very large; Main in order to from light guide plate 12 bottom surface loss light energy reflected out, returning light guide plate 12 with the reflector plate 11 that positive incidence surface is oppositely arranged, improve the utilization factor of light source; The exiting surface of light guide plate 12 is provided with optical film material, for changing from the direction of light guide plate 12 emergent raies and the light intensity that strengthens emergent ray; Optical film material mainly comprises that diffusion sheet 13(claims not only diffusion barrier or diffuser plate) and brightness enhancement film 14(but also claim bright enhancement film), other optical film material (not shown)s such as diaphragm; The major function of diffusion barrier is that the light that sees through light guide plate 12 is done to the effect that scattering processes to reach atomization, for LCD screen provides even and soft light; Brightness enhancement film 14 can be by light-ray condensing in normal direction, thereby promotes front face brightness and briliancy performance, and then reaches the purpose of blast, energy saving; Light-emitting component 15 is arranged on the side of light guide plate 12, can reduce like this thickness of whole backlight module, thereby better realizes ultra-thin effect; Back of the body frame 17 can be metal material, and it is mainly used in above-mentioned all component is fitted together.
Therefore, the bright dipping of above-mentioned optical fiber 16 part can have multiple implementation, when we remove some or all of covering 163 and coat 164, certainly has part light to be reflected out.
For example: when the protective seam 162 that optical fiber 16 is positioned to the incidence surface zone is all peeled off; surround lighting in optical fiber 16 can arrive just the light out part timesharing of optical fiber 16; the just outgoing fully of whole surround lightings in optical fiber 16; can not continue to move in the incidence surface zone; cause the incidence surface in light guide plate 12, the light of a part of concentrated area is very strong, and other zonal rays are very weak; cause the unevenness that incides the light in light guide plate 12, thereby can not provide uniform light source for LCD screen.
Therefore, in the present embodiment, optical fiber 16 only has partial protection layer 162 to be stripped from, and exposes fibre core 161, forms the bright dipping part.
For example: as shown in Fig. 1 and Fig. 2, optical fiber 16 is stripped near the protective seam 162 of a side of reflector plate 11, the distance that the degree of peeling off need to be advanced in the incidence surface zone according to surround lighting is concrete to be set, the surround lighting outgoing reflexes in light guide plate 12 by reflector plate 11, under the effect of reflector plate 11, can make light softer evenly;
Again for example; as shown in Fig. 3 and Fig. 4; optical fiber 16 is stripped near the protective seam 162 of a side of positive incidence surface; the distance that the degree of peeling off need to be advanced in the incidence surface zone according to surround lighting is concrete to be set; the surround lighting outgoing, by directly entering in light guide plate 12, has reduced the loss of light energy in reflection process.
Again for example; as shown in Fig. 5 and Fig. 6; optical fiber 16 all has partial protection layer 162 to be stripped near a side of reflector plate 11 and a side of close positive incidence surface; the distance that the degree of peeling off need to be advanced in the incidence surface zone according to surround lighting is concrete to be set; the surround lighting part of outgoing directly enters in light guide plate 12, and a part reflexes in light guide plate 12 through reflector plate 11.
Further, the quantity of above-mentioned optical fiber 16 is many, and as shown in Fig. 1 to Fig. 6, the bright dipping of many light cores part is arranged in the positive incidence surface of light guide plate 12 uniformly, and the surround lighting of outgoing is distributed as far as possible evenly.The concrete quantity of light core can make a variety of changes according to technical need, at this, does not do particular determination.
Wherein, light-emitting component 15 can be LED(Light Emitting Diode, light emitting diode) lamp bar, CCFL(Cold Cathode Fluorescent Lamp, the cold cathode fluorescent lamp pipe) or other can be luminous element; Light-emitting component 15 in the present embodiment adopts LED lamp bar; Adopt LED lamp bar as light-emitting component 15, main purpose is to promote to show image quality, particularly on color saturation, adopt the display screen of LED-backlit can obtain enough wide colour gamut, make up the defect of liquid crystal display display color lazy weight, simultaneously because the planar light source characteristic of LED lamp bar can realize more accurate color rendition.
It should be noted that; backlight module in the utility model does not limit to and above-mentioned implementation; for example; also can in down straight aphototropism mode set, realize; be about to the positive incidence surface that light-emitting component 15 is arranged on light guide plate 12; divide the side that is arranged on light guide plate 12 incidence surface by the light out part of optical fiber 16; by optical fiber 16, the protective seam 162 near a side of side incidence surface is stripped from and forms etc. the bright dipping part of optical fiber 16; remainder is roughly the same with the implementation in the side entrance back module, does not repeat them here.
The utility model also provides a kind of a kind of display device that comprises above-mentioned any one backlight module.This display device is utilized the backlight module of surround lighting as secondary light source owing to having applied, therefore under the surround lighting of high brightness, also there is very high contrast, and energy-conserving and environment-protective, simultaneously for example, because component environment light (sunshine) has the well colour rendering index of (the best can reach 100%), therefore, the demonstration colour gamut of this display device is wider more beautiful.
Because the light inputting end of optical fiber needs reception environment light, therefore, the light inputting end of optical fiber need to be arranged on to the outside of display device, for example, the light inputting end of optical fiber can be arranged on to the side of display device or periphery everywhere, and that the light inputting end of optical fiber is preferably is hemispherical as shown in Figure 8, the light inputting end 165 of being convenient to like this optical fiber 16 can gather surround lighting fully, thereby provides better light source for backlight module.
Above embodiment is only for illustrating the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that do not break away from spirit and scope of the present utility model; can also make a variety of changes and modification, therefore all technical schemes that are equal to also belong to protection category of the present utility model.
Claims (10)
1. a backlight module, comprise light guide plate; Described light guide plate comprises positive incidence surface and side incidence surface; It is characterized in that:
Light-emitting component is arranged on described positive incidence surface, and the light out part of some optical fiber divides and is arranged on described side incidence surface; Perhaps,
Light-emitting component is arranged on described side incidence surface, and the light out part of some optical fiber divides and is arranged on described positive incidence surface;
Described optical fiber has the light inputting end that imports surround lighting.
2. backlight module according to claim 1, is characterized in that, all or part of protective seam that described optical fiber is positioned at side incidence surface or positive incidence surface position is stripped from, and exposes fibre core, forms described bright dipping part.
3. backlight module according to claim 2, is characterized in that, described protective seam comprises and is coated on the covering on described fibre core and is coated on the coat on described covering.
4. according to the described backlight module of claim 1-3 any one, it is characterized in that, described light-emitting component is arranged on the side incidence surface, and the light out part of described optical fiber divides while being arranged on positive incidence surface, and described backlight module also comprises the reflector plate be oppositely arranged with described positive incidence surface; The light out part of optical fiber divides and is arranged between described light guide plate and reflector plate.
5. backlight module according to claim 4, is characterized in that, described optical fiber is stripped near the protective seam of a side of positive incidence surface and/or close reflector plate.
6. backlight module according to claim 4, is characterized in that, the bright dipping part of described some optical fiber is arranged in described positive incidence surface uniformly.
7. according to the described backlight module of claim 1-3 any one, it is characterized in that, described light-emitting component is arranged on positive incidence surface, and the light out part of described optical fiber divides while being arranged on the side incidence surface, and described optical fiber is stripped near the protective seam of a side of side incidence surface.
8. a display device, is characterized in that, comprises the described backlight module of claim 1-7 any one.
9. display device according to claim 8, is characterized in that, the light inputting end of described optical fiber is positioned at the outside of described display device.
10. display device according to claim 8 or claim 9, is characterized in that, described light inputting end is hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204528027U CN203337958U (en) | 2013-07-26 | 2013-07-26 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204528027U CN203337958U (en) | 2013-07-26 | 2013-07-26 | Backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203337958U true CN203337958U (en) | 2013-12-11 |
Family
ID=49706624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204528027U Expired - Fee Related CN203337958U (en) | 2013-07-26 | 2013-07-26 | Backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203337958U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747937A (en) * | 2013-12-26 | 2015-07-01 | 元太科技工业股份有限公司 | Light source module and display device |
| CN105093670A (en) * | 2014-05-23 | 2015-11-25 | 联想(北京)有限公司 | Terminal device |
| CN105736963A (en) * | 2016-03-07 | 2016-07-06 | 合一智能科技（深圳）有限公司 | Backlight device and control method thereof |
| WO2016127647A1 (en) * | 2015-02-15 | 2016-08-18 | 深圳Tcl新技术有限公司 | Semiconductor nano-transistor, light-emitting assembly and liquid crystal television |
| WO2016149976A1 (en) * | 2015-03-24 | 2016-09-29 | 深圳市华星光电技术有限公司 | Optical fiber backlight module and liquid crystal display |
| WO2018120508A1 (en) * | 2016-12-27 | 2018-07-05 | 惠科股份有限公司 | Backlight module and display device |
| CN114077099A (en) * | 2021-11-24 | 2022-02-22 | 康佳集团股份有限公司 | Backlight structure based on side-port optical fiber and display device |
-
2013
- 2013-07-26 CN CN2013204528027U patent/CN203337958U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747937A (en) * | 2013-12-26 | 2015-07-01 | 元太科技工业股份有限公司 | Light source module and display device |
| CN105093670A (en) * | 2014-05-23 | 2015-11-25 | 联想(北京)有限公司 | Terminal device |
| CN105093670B (en) * | 2014-05-23 | 2018-07-03 | 联想(北京)有限公司 | Terminal device |
| WO2016127647A1 (en) * | 2015-02-15 | 2016-08-18 | 深圳Tcl新技术有限公司 | Semiconductor nano-transistor, light-emitting assembly and liquid crystal television |
| WO2016149976A1 (en) * | 2015-03-24 | 2016-09-29 | 深圳市华星光电技术有限公司 | Optical fiber backlight module and liquid crystal display |
| CN105736963A (en) * | 2016-03-07 | 2016-07-06 | 合一智能科技（深圳）有限公司 | Backlight device and control method thereof |
| WO2017152613A1 (en) * | 2016-03-07 | 2017-09-14 | 合一智能科技（深圳）有限公司 | Backlight device and control method therefor |
| WO2018120508A1 (en) * | 2016-12-27 | 2018-07-05 | 惠科股份有限公司 | Backlight module and display device |
| US10502883B2 (en) | 2016-12-27 | 2019-12-10 | HKC Corporation Limited | Backlight module and display apparatus thereof |
| CN114077099A (en) * | 2021-11-24 | 2022-02-22 | 康佳集团股份有限公司 | Backlight structure based on side-port optical fiber and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203337958U (en) | Backlight module and display device | |
| CN202048503U (en) | LED (Light-Emitting Diode) backlight module diffusion board | |
| US10241255B2 (en) | Backlight module and liquid crystal display | |
| US20210080785A1 (en) | Backlight module | |
| CN201858541U (en) | LED (light-emitting module) backlight module and display equipment with same | |
| CN205003416U (en) | Liquid crystal display back of body light source device | |
| CN103225773A (en) | Sidelight type LED dynamic backlight module and liquid crystal display device | |
| CN103576385A (en) | Backlight module and display device | |
| CN101441354A (en) | LED line light source module group and backlight source device | |
| CN205880445U (en) | Back light module and liquid crystal display device | |
| CN109358451B (en) | Backlight module and display device thereof | |
| CN201803318U (en) | Light guide plate, back light module, and display device employing back light module | |
| CN107942581B (en) | Direct type backlight module structure | |
| CN101216632A (en) | Side light type backlight module group | |
| CN105093676A (en) | Backlight module for liquid crystal display | |
| CN204440841U (en) | Double-side display device and electronic equipment | |
| CN202708819U (en) | Highlight brightness LED direct illumination-type backlight | |
| CN202708818U (en) | LED area source using side-glowing light-emitting column | |
| CN102720987A (en) | Light emitting diode (LED) area source employing side light emitting bar | |
| CN203365862U (en) | Backlight module and liquid crystal display device | |
| CN207074328U (en) | A kind of backlight for solving the screen dark problem of chamfering comprehensively | |
| CN102591065A (en) | Composite optical sheet used for LCD (liquid crystal display) backlight module | |
| CN202647411U (en) | Novel glass light guide plate lateral entering type LED (light emitting diode) backlight module | |
| CN106772759B (en) | Backlight module and display device | |
| CN202221012U (en) | Back light module and liquid crystal display device applying same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20210726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |