CN105807489A - Backlight source module, liquid-crystal display device and mobile terminal - Google Patents
Backlight source module, liquid-crystal display device and mobile terminal Download PDFInfo
- Publication number
- CN105807489A CN105807489A CN201610297968.4A CN201610297968A CN105807489A CN 105807489 A CN105807489 A CN 105807489A CN 201610297968 A CN201610297968 A CN 201610297968A CN 105807489 A CN105807489 A CN 105807489A
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- Prior art keywords
- light
- guide plate
- light guide
- photo
- shield strip
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 12
- 238000005452 bending Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 4
- 229920002799 BoPET Polymers 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
Classifications
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- Physics & Mathematics (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)
Abstract
The invention discloses a backlight source module, a liquid-crystal display device and a mobile terminal. The backlight source module comprises a light source, a light guide plate, a light reflecting plate and a shading band, wherein the light guide plate comprises a side incidence plane, an emergence plane adjacently connected with the side incidence plane and a bottom face adjacently connected with the side incidence plane and opposite to the emergence plane. The light source is arranged on the side incidence plane of the light guide plate. The light reflecting plate is arranged under the bottom face, the shading band is arranged above the light guide plate, a gap exists in the light guide plate, and the shading band is a curved surface and is used for reflecting light refracted out of the gap onto the light guide plate again so as to emit the refracted light of the light out of an AA area side face after multiple times of reflection. The light can be prevented from emerging from the side face of the gap, the phenomenon of light leakage of an AA area is not produced, and the usage experience of a user is improved.
Description
Technical field
The present invention relates to display technology field, particularly relate to a kind of backlight module, liquid crystal indicator and mobile terminal.
Background technology
Along with improving constantly of LED light effect, the market share shared by LED backlight also increases day by day.At present, backlight module mainly adopts straight-down negative or side entering type two ways.Fig. 1 is the structural representation of side entering type mode backlight module in prior art, as seen from Figure 1, side entrance back module includes: light source, light guide plate, reflector and photo-shield strip, wherein light source is arranged on the side of light guide plate, for providing light source, light guide plate is arranged on bonnet, is converted to area source for the light sent by light source.Photo-shield strip is arranged on above described light guide plate.
In side entrance back module, needing in passive bonnet to reserve certain gap, to facilitate assembling light guiding plate in bonnet, but the size of this gap and light guide plate not complies fully with, after light guide plate completes assembling, between light guide plate and photo-shield strip, also there is certain gap.As seen from Figure 1, the light that light source sends relays the raw refraction of supervention after the reflection of reflector and the refraction of light guide plate in gap, the angle that light reflects is made to change, light finally penetrates from other region (a-quadrant) beyond visual angle light-emitting zone (AA), cause generation light leakage phenomena, reduce the experience of user.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of backlight module, liquid crystal indicator and mobile terminal, to solve the technical problem of backlight light leak in prior art.
First aspect, embodiments provides a kind of backlight module, including: light source, light guide plate, reflector and photo-shield strip,
Described light guide plate, is converted to area source for the light that sent by light source, the exit facet adjacent including the side plane of incidence and the described side plane of incidence and the described side plane of incidence is adjacent and the bottom surface that is oppositely arranged with described exit facet；
Described light source is arranged at the side plane of incidence side away from light guide plate of described light guide plate；
Described reflector is arranged at the lower section of described bottom surface, for reflecting the light through light guide plate modulation；
Described photo-shield strip is arranged on the top of described light guide plate, gap is had, it is characterised in that described photo-shield strip is curved surface between described photo-shield strip and described light guide plate, in order to light back that described gap is reflected to light guide plate, so that described light finally penetrates from light-emitting zone AA.
Further, described photo-shield strip includes: at least two plane, said two planar abutment, becomes predetermined angle between said two plane, and the light angle that described predetermined angle reflects according to described light guide plate determines.
Further, described photo-shield strip includes at least two curvilinear plane, and light angle and the light angle of described gap refraction that the degree of crook of described curvilinear plane reflects according to described light guide plate determine.
Further, described photo-shield strip is indent arc.
Further, described photo-shield strip is realized by machinery bending and/or cutting process processing.
Further, described photo-shield strip is black or white.
Further, described photo-shield strip is PET film or PE film.
Further, described photo-shield strip be linear, rectangle, circle, ellipse and or triangle in any one or multiple combination.
Second aspect, the embodiment of the present invention additionally provides a kind of liquid crystal indicator, including: the backlight module of above-mentioned offer.
The third aspect, the embodiment of the present invention additionally provides a kind of mobile terminal, including: the liquid crystal indicator of above-mentioned offer.
Backlight module that the embodiment of the present invention provides, liquid crystal indicator and mobile terminal, be set to curved surface by the photo-shield strip of the top by being arranged at light guide plate, so that the light back that can be reflected in gap of photo-shield strip is to light guide plate.The light reflected is made to penetrate from side, AA region after multiple reflections, it is possible to avoid light to penetrate from the side in gap, AA region light leakage phenomena will not be produced, improve the experience of user.
Accompanying drawing explanation
By reading the detailed description that non-limiting example is made made with reference to the following drawings, the other features, objects and advantages of the present invention will become more apparent upon:
Fig. 1 is the structural representation of the backlight module of prior art；
Fig. 2 is the structural representation of the backlight module that the embodiment of the present invention one provides；
Fig. 3 is the Microscopic optical reflecting surface structure schematic diagram of photo-shield strip in the backlight module that the embodiment of the present invention one provides；
Fig. 4 is light line reflection and refraction schematic diagram in the backlight module that the embodiment of the present invention one provides.
The technical characteristic that accompanying drawing labelling in figure refers to respectively is:
1, light source；2, light guide plate；3, photo-shield strip；4, gap；5, the side plane of incidence；
6, exit facet；7, bottom surface 7；8, the first line ball；9, the second line ball；10, the first plane；
11, the second plane；12, the 3rd plane；13, reflector.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.It is understood that specific embodiment described herein is used only for explaining the present invention, but not limitation of the invention.It also should be noted that, for the ease of describing, accompanying drawing illustrate only part related to the present invention but not full content.
In embodiments of the present invention, when not making contrary explanation, the noun of locality of use as " upper and lower, top, the end " usually for direction shown in the drawings or for each parts mutual alignment relationship description word on vertical, vertical or gravity direction.
Embodiment one
The embodiment of the present invention one provides a kind of backlight module, including: light source 1, light guide plate 2, reflector 13 and photo-shield strip 3, described light guide plate 2, for the light that light source 1 sends is converted to area source, the exit facet 6 adjacent including the side plane of incidence 5 and the described side the plane of incidence 5 and described side plane of incidence 5 is adjacent and the bottom surface 7 that is oppositely arranged with described exit facet 6；Described light source 1 is arranged at described light source and is arranged at the side plane of incidence 5 side away from light guide plate of described light guide plate；Described reflector 13 is arranged at the lower section of described bottom surface, for reflecting the light through light guide plate modulation；Described photo-shield strip 3 is arranged on the top of described light guide plate 2；Having gap 4 between described photo-shield strip 3 and described light guide plate 2, described photo-shield strip 3 is curved surface, in order to the light back that reflected in described gap to light guide plate, so that described light finally penetrates from the side of light-emitting zone AA.
Fig. 2 is the structural representation of the backlight module that the embodiment of the present invention one provides.As in figure 2 it is shown, described backlight module includes: light source 1, light guide plate 2, reflector 13 and photo-shield strip 3.As seen from Figure 2, light guide plate 2 is arranged on bonnet, and light guide plate 2 for being converted to area source by the light that light source 1 sends, and then makes the briliancy of backlight module and the uniformity reach designing requirement.In the present embodiment, light guide plate 2 is flat light guide plate, and it is seen as a rectangular shape from front.The material of light guide plate 2 is based on transparent plastic material, by light in the way of transmitting or passing through, is formed and affects clearly.Should possess following characteristic, high transmission rate, large range of refractive index, relatively low birefringence and suitable intensity.Light guide plate 2 includes the side plane of incidence 5 and the adjacent exit facet 6 of the described side plane of incidence 5 and the described side plane of incidence 5 is adjacent and the bottom surface 7 that is oppositely arranged with described exit facet.Described light source 1 is arranged at the side plane of incidence 5 of described light guide plate 2.The light that light source 1 the sends plane of incidence from the side enters light guide plate 2.Reflector 13 is arranged at the lower section of described bottom surface, for reflecting the top being arranged on described light guide plate 2 through photo-shield strip 3 described in the light of light guide plate modulation.Described photo-shield strip 3 is curved surface, in order to the light back that reflected in described gap 4 to light guide plate.Exemplary, photo-shield strip 3 is formed by the plain splice of multiple angled connections.The light back that gap 4 can be reflected by the plane of multiple angled connections by the photo-shield strip 3 in Fig. 2 is to light guide plate 2, so that described light is from the injection of the side of light-emitting zone AA.
Fig. 3 is the optical reflection face structural representation of photo-shield strip 3 in the backlight module that the embodiment of the present invention one provides, as seen from Figure 3, photo-shield strip 3 includes the plane of multiple angled connection, and in the present embodiment, photo-shield strip 3 is by being bent to form the plane of multiple angled connection.By positions different on photo-shield strip 3 as bending point, making photo-shield strip 3 plane form line ball in bending point position, planar bracket is connected by line ball, and relative to line ball, forms different angles between plane.In Fig. 3, photo-shield strip 3 forms the first line ball 9 by bending downwards at the second bending point, and the first plane 11 and the second plane 12 intersect at the first line ball 9, and form the first predetermined angle between the first plane 11 and the second plane 12.The second line ball 10 it is bent to form downwards at the second bending point, second plane 12 and the 3rd plane 13 intersect at the second line ball 10, and second form the second predetermined angle between plane 12 and the 3rd plane 13, first predetermined angle can be identical with the second predetermined angle, can also be different, the light angle specifically reflected by reflector determines.
Fig. 4 is light line reflection and refraction schematic diagram in the backlight module that the embodiment of the present invention one provides.With reference to Fig. 4, the incident ray of light source 1, for instance be the first incident ray 101a, it is necessary to after the modulation of light guide plate 2, through the reflection of reflector 13, then launch from the exit facet 6 of light guide plate 2 and form 101b to gap 4.Owing to the atmospheric density in gap 4 is different from the density of light guide plate 2, light reflects, and forms light 101b.When light 101b arrives photo-shield strip 3, due to the reflection of photo-shield strip 3, after light 101b reflection, again it is reflected back in light guide plate 2.The effect of described photo-shield strip 3 is in that to process the first incident ray 101a through reflection, to guide among the first incident ray 101a return light guide plate 2, by that analogy, incident ray 101a is after multiple reflections and refraction, generate light 101c, and penetrate from light-emitting zone AA, to avoid the first incident ray 101a after reflection and refraction, never the injection of light-emitting zone a-quadrant, causes light leakage phenomena.
Additionally, described photo-shield strip 3 may also comprise at least two curvilinear plane, light angle and the light angle of described gap 4 refraction that the degree of crook of described curvilinear plane reflects according to described light guide plate 2 determine.Curvilinear plane can provide more angle of bend, and the light ratio reflected in gap 4, time relatively decentralized, adopts the light that the photo-shield strip 3 of curvilinear plane can better be assembled and non-reflective gap 4 reflects.In order to better realize light-ray condensing, described photo-shield strip 3 can be imploded arcs shape, and indent arc can better assemble the light of gap 4 refraction.
Further, described photo-shield strip 3 is realized by machinery bending and/or cutting process processing.Photo-shield strip 3 can be made better to form an entirety by machinery bending and/or cutting process, reduce bending and/or cut the marginal area impact on light line reflection.Also dependent on needs, it is chosen as white or black.Photo-shield strip 3 can adopt PET film or PE film, it is possible to while satisfied guide-lighting requirement, it is simple to bend and cut.Photo-shield strip 3 can be chosen as linear, rectangle, circle, ellipse and or triangle in any one or multiple combination.
The backlight module that the present embodiment provides is crossed the photo-shield strip being arranged at above light guide plate is set to curved surface, so that the light back that can be reflected in gap 4 of photo-shield strip is to light guide plate.The light reflected is made to penetrate from the visual angle light-emitting zone AA of light guide plate after multiple reflections, it is possible to avoid light to penetrate from non-luminous region A, light leakage phenomena will not be produced, improve the experience of user, be particularly well-suited to the backlight product of small-medium size.
The embodiment of the present invention also provides for a kind of liquid crystal indicator, and this display device includes the backlight module described by above-described embodiment, has the function that above-described embodiment is identical.
Additionally, the embodiment of the present invention also provides for a kind of mobile terminal, this mobile terminal includes the liquid crystal indicator described by above-described embodiment, has the function that above-described embodiment is identical.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention being described in further detail by above example, but the present invention is not limited only to above example, when without departing from present inventive concept, other Equivalent embodiments more can also be included, and the scope of the present invention is determined by appended right.
Claims (10)
1. a backlight module, including: light source, light guide plate, reflector and photo-shield strip,
Described light guide plate, is converted to area source for the light that sent by light source, the exit facet adjacent including the side plane of incidence and the described side plane of incidence and the described side plane of incidence is adjacent and the bottom surface that is oppositely arranged with described exit facet；
Described light source is arranged at the side plane of incidence side away from light guide plate of described light guide plate；
Described reflector is arranged at the lower section of described bottom surface, for reflecting the light through light guide plate modulation；
Described photo-shield strip is arranged on the top of described light guide plate, gap is had, it is characterised in that described photo-shield strip is curved surface between described photo-shield strip and described light guide plate, in order to light back that described gap is reflected to light guide plate, so that described light finally penetrates from light-emitting zone AA.
2. backlight module according to claim 1, it is characterized in that, described photo-shield strip includes: at least two plane, said two planar abutment, becoming predetermined angle between said two plane, the light angle that described predetermined angle reflects according to described light guide plate determines.
3. backlight module according to claim 1, it is characterised in that described photo-shield strip includes at least two curvilinear plane, light angle and the light angle of described gap refraction that the degree of crook of described curvilinear plane reflects according to described light guide plate determine.
4. backlight module according to claim 3, it is characterised in that described photo-shield strip is indent arc.
5. backlight module according to claim 1, it is characterised in that described photo-shield strip is realized by machinery bending and/or cutting process processing.
6. backlight module according to claim 1, it is characterised in that described photo-shield strip is black or white.
7. backlight module according to claim 1, it is characterised in that described photo-shield strip is PET film or PE film.
8. backlight module according to claim 1, it is characterised in that described photo-shield strip be linear, rectangle, circle, ellipse and or triangle in any one or multiple combination.
9. a liquid crystal indicator, it is characterised in that include the arbitrary described backlight module of claim 1-8.
10. a mobile terminal, it is characterised in that include the liquid crystal indicator described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610297968.4A CN105807489A (en) | 2016-05-06 | 2016-05-06 | Backlight source module, liquid-crystal display device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610297968.4A CN105807489A (en) | 2016-05-06 | 2016-05-06 | Backlight source module, liquid-crystal display device and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105807489A true CN105807489A (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610297968.4A Pending CN105807489A (en) | 2016-05-06 | 2016-05-06 | Backlight source module, liquid-crystal display device and mobile terminal |
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| CN (1) | CN105807489A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112764268A (en) * | 2021-01-12 | 2021-05-07 | 业成科技（成都）有限公司 | Backlight module and display device |
| US11846796B1 (en) | 2022-06-22 | 2023-12-19 | Chicony Power Technology Co., Ltd. | Backlight module |
| CN117863726A (en) * | 2023-05-22 | 2024-04-12 | 广东至唯技术有限公司 | LED shading structure, curing device and curing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873505A (en) * | 2005-05-31 | 2006-12-06 | 三星电子株式会社 | Backlight assembly and liquid crystal display having the same |
| CN101619825A (en) * | 2009-08-06 | 2010-01-06 | 友达光电股份有限公司 | Backlight module for reducing light leakage |
| US20120287355A1 (en) * | 2010-02-02 | 2012-11-15 | Sharp Kabushiki Kaisha | Lighting device, display device, and television receiver |
| CN103823319A (en) * | 2014-03-10 | 2014-05-28 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| WO2015040699A1 (en) * | 2013-09-18 | 2015-03-26 | Ｎｌｔテクノロジー株式会社 | Planar light source device and liquid crystal display device |
| CN205862054U (en) * | 2016-05-06 | 2017-01-04 | 奥英光电（苏州）有限公司 | A kind of backlight module, liquid crystal indicator and mobile terminal |
-
2016
- 2016-05-06 CN CN201610297968.4A patent/CN105807489A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873505A (en) * | 2005-05-31 | 2006-12-06 | 三星电子株式会社 | Backlight assembly and liquid crystal display having the same |
| CN101619825A (en) * | 2009-08-06 | 2010-01-06 | 友达光电股份有限公司 | Backlight module for reducing light leakage |
| US20120287355A1 (en) * | 2010-02-02 | 2012-11-15 | Sharp Kabushiki Kaisha | Lighting device, display device, and television receiver |
| WO2015040699A1 (en) * | 2013-09-18 | 2015-03-26 | Ｎｌｔテクノロジー株式会社 | Planar light source device and liquid crystal display device |
| CN103823319A (en) * | 2014-03-10 | 2014-05-28 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| CN205862054U (en) * | 2016-05-06 | 2017-01-04 | 奥英光电（苏州）有限公司 | A kind of backlight module, liquid crystal indicator and mobile terminal |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112764268A (en) * | 2021-01-12 | 2021-05-07 | 业成科技（成都）有限公司 | Backlight module and display device |
| US11846796B1 (en) | 2022-06-22 | 2023-12-19 | Chicony Power Technology Co., Ltd. | Backlight module |
| CN117863726A (en) * | 2023-05-22 | 2024-04-12 | 广东至唯技术有限公司 | LED shading structure, curing device and curing method |
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Application publication date: 20160727 |
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