CN109031783A - Light import system, side entrance back module and liquid crystal display - Google Patents
Light import system, side entrance back module and liquid crystal display Download PDFInfo
- Publication number
- CN109031783A CN109031783A CN201810907544.4A CN201810907544A CN109031783A CN 109031783 A CN109031783 A CN 109031783A CN 201810907544 A CN201810907544 A CN 201810907544A CN 109031783 A CN109031783 A CN 109031783A
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- Prior art keywords
- light
- strip
- import system
- guiding device
- environment
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
-
- 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)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The present invention discloses a kind of smooth import system, side entrance back module and liquid crystal display, which includes: environment light collecting system, towards environment light, absorbs environment light and generates absorption light；Several guiding devices, each guiding device has a light inputting end and one goes out light end, and light inputting end absorbs light and enter light inputting end and be led to out light end adjacent to environment light collecting system；At least two light-strips, light-strip includes a light emission side face, a light incident sides and with light incident sides opposite second side connected with light emission side face, an incidence surface of the light emission side face adjacent to light guide plate, the second side of first light-strip and the second side of the second light-strip are oppositely arranged, a part of guiding device goes out light end adjacent to the light incident sides of the first light-strip, and another part guiding device goes out light end adjacent to the light incident sides of the second light-strip.
Description
Technical field
The invention belongs to field of liquid crystal display, specifically, be related to a kind of smooth import system, side entrance back module and
Liquid crystal display.
Background technique
The classification for the back light that the backlight module in TFT-LCD display uses at this stage is common light emitting diode
(LED) or fluorescent tube, the two are all to use electric power as the luminous energy of tending to act, however it is carried on the back on entire backlight module
The energy consumption of radiant just accounts for 80% or so, and the consumption of its energy is very huge under long-time use.In current institute
Be broadly divided into the power generation classification used oil combustion power generation, coal burning power generation and nuclear energy power generation, can bring greenhouse effects,
The environmental problems such as nuclear pollution.
Environment light in nature, such as sunlight are environmentally protective natural energy resources, include back light in spectrum
The light of required visible light wave range can gather up sunlight use environment light collecting system in the design of backlight module
Come, and imported in backlight module and used as back light with guiding device, such as optical fiber, then can greatly reduce disappearing for electric power
Consumption.
Fig. 1 is that a kind of light of existing side entrance back module imports system structure diagram, which utilizes
Environment light collecting system 10, which absorbs environment light CL and generates, absorbs light SL, absorbs light SL and imports in a plurality of optical fiber 20, every optical fiber
20 light end 21 out can pass through incidence surface 31 from the light that light end 21 is projected each out adjacent to an incidence surface 31 of light guide plate 30
It injects in light guide plate 30, is projected after mixing via light-emitting surface 33 in light guide plate 30, then the light projected from light end 21 out is just
It can be used as the back light in backlight module 1.
Main problem existing for the structure of above-mentioned side entrance back module be optical fiber 20 go out light end 21 light emitting angle compared with
Small (usually within 60 degree), when going out incidence surface 31 arrangement of the light end 21 adjacent to light guide plate 30 of a plurality of optical fiber 20, if adjacent
Two spacing gone out between light end 21 are larger, the phenomenon that the incidence surface 31 of light guide plate 30 will appear obvious brightness unevenness,
To influence the optics taste of backlight module.If reduce it is two neighboring go out light end 21 between spacing be then intended to using
More a plurality of optical fiber 20, will increase cost and manufacture difficulty in this way.
Summary of the invention
In order to solve the above-mentioned problems of the prior art, the purpose of the present invention is to provide a kind of smooth import system, packets
Include: environment light collecting system absorbs the environment light and generates absorption light towards environment light；Several guiding devices, it is each to lead
Electro-optical device has a light inputting end and one goes out light end, the light inputting end adjacent to the environment light collecting system, the absorption light into
Enter the light inputting end and is led to the light end out；At least two light-strips, the light-strip include a light emission side face and institute
State light emission side face connected a light incident sides and the second side opposite with the light incident sides, the light emission side face is adjacent to leading
One incidence surface of tabula rasa, the second side of the first light-strip and the second side of the second light-strip are oppositely arranged, and a part is guide-lighting
Device goes out light end adjacent to the light incident sides of first light-strip, and another part guiding device goes out light end adjacent to described
The light incident sides of second light-strip.
In addition, the quantity of a part of guiding device is equal with the quantity of another part guiding device.
In addition, the guiding device is optical fiber.
In addition, the guiding device is optical fiber.
In addition, the light-strip further includes being connected relative to the first side in the light emission side face, with the light emission side face
And opposite bottom surface and top surface, reflecting layer is equipped on the first side, second side, bottom surface and top surface.
In addition, the reflecting layer is argentum reflecting layer, golden reflecting layer or dielectric reflective layer.
In addition, multiple sites are distributed in the first side.
In addition, the shape of the site is hemispherical or cylinder.
In addition, the material of the light-strip is PMMA.
Another object of the present invention, which also resides in, provides a kind of side entrance back module, including backboard, light guide plate, optical diaphragm
And above-mentioned light import system, the light guide plate include an incidence surface, the bottom surface for being oppositely arranged and being connected with the incidence surface and
Light-emitting surface, the backboard are set under the bottom surface, and the optical diaphragm is set on the light-emitting surface.
Another object of the present invention, which also resides in, provides a kind of liquid crystal display, including display panel and above-mentioned side entering type back
Optical mode group, the display panel are placed on the side entrance back module.
Smooth import system, side entrance back module and liquid crystal display according to the present invention, by using two light-strips,
A plurality of optical fiber can be divided into two parts, can reduce the width and length of light-strip in this way, to reduce side entrance back mould
The volume and weight of group simultaneously saves cost.The width of light-strip and the reduction of length can also make far from the first side for being equipped with site
Light be easier to get on site, meanwhile, propagation path of the light in light-strip substantially shortens, reduce absorption loss.In addition, logical
The shape and arrangement mode for rationally designing site are crossed, the light that light end-fire goes out that goes out of optical fiber can be made equably to inject from light emission side face
Into light guide plate, the phenomenon that reducing the brightness unevenness of the incidence surface of light guide plate, improves the optics taste of side entrance back module.
Smooth import system, side entrance back module and liquid crystal display according to the present invention, by using two light-strips,
A plurality of optical fiber can be divided into two parts, can reduce the width and length of light-strip in this way, to reduce side entrance back mould
The volume and weight of group simultaneously saves cost.The width of light-strip and the reduction of length can also make far from the first side for being equipped with site
Light be easier to get on site, meanwhile, propagation path of the light in light-strip substantially shortens, reduce absorption loss.In addition, logical
The shape and arrangement mode for rationally designing site are crossed, the light that light end-fire goes out that goes out of optical fiber can be made equably to inject from light emission side face
Into light guide plate, the phenomenon that reducing the brightness unevenness of the incidence surface of light guide plate, improves the optics taste of side entrance back module.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of existing side entrance back module.
Fig. 2 is the structural schematic diagram of the light import system of the embodiment of the present invention.
Fig. 3 is the front view of the light incident sides of the light-strip of the embodiment of the present invention.
Fig. 4 is another schematic shapes of the site in the first side of the light-strip of the embodiment of the present invention.
Fig. 5 is the schematic diagram of the side entrance back module of the embodiment of the present invention.
Fig. 6 is the schematic diagram of the liquid crystal display of the embodiment of the present invention.
Specific embodiment
In order to preferably illustrate technological means and its effect adopted by the present invention, below in conjunction with the embodiment of the present invention and
Its attached drawing is described in detail, wherein identical label always shows identical component.
Referring to Fig. 2, Fig. 3, which includes: 20, two environment light collecting system 10, several optical fiber leaded lights
Item 40.In particular, environment light collecting system 10 towards and absorb environment light CL, then convert absorption light for environment light CL
SL, it is notable that the light that environment light CL can issue for sunlight, light or other luminous objects absorbs the wavelength of light SL
In wave-length coverage in visible light, i.e. absorption light SL can be used as the back light in backlight module.Every optical fiber
20 have one go out light end 21 and a light inputting end 22, the light inputting end 22 of each optical fiber 20 pool it is a branch of after adjacent to environment light collect
System 10.There is light guide plate 30 incidence surface 31 and a light-emitting surface 33, the light entered by incidence surface 31 to mix in light guide plate 30
It is projected after uniformly by light-emitting surface 33.Light-strip 40 include a light emission side face 42, be connected with light emission side face 42 a light incident sides 41,
The first side 44 opposite with light incident sides 41, wherein light emission side face 42 is arranged towards and adjacent to incidence surface 31, two leaded lights
The first side 44 of item 40 is oppositely arranged.In addition, the material of light-strip 40 can for PMMA (Polymethylmethacrylate,
Polymethyl methacrylate) etc..
Referring to Fig. 2, Fig. 3, which includes: 20, two environment light collecting system 10, several optical fiber leaded lights
Item 40.In particular, environment light collecting system 10 towards and absorb environment light CL, then convert absorption light for environment light CL
SL, it is notable that the light that environment light CL can issue for sunlight, light or other luminous objects absorbs the wavelength of light SL
In wave-length coverage in visible light, i.e. absorption light SL can be used as the back light in backlight module.Every optical fiber
20 have one go out light end 21 and a light inputting end 22, the light inputting end 22 of each optical fiber 20 pool it is a branch of after adjacent to environment light collect
System 10.There is light guide plate 30 incidence surface 31 and a light-emitting surface 33, the light entered by incidence surface 31 to mix in light guide plate 30
It is projected after uniformly by light-emitting surface 33.Light-strip 40 include a light emission side face 42, be connected with light emission side face 42 a light incident sides 41,
The first side 44 opposite with light incident sides 41, wherein light emission side face 42 is arranged towards and adjacent to incidence surface 31, two leaded lights
The first side 44 of item 40 is oppositely arranged.In addition, the material of light-strip 40 can for PMMA (Polymethylmethacrylate,
Polymethyl methacrylate) etc..
In the present embodiment, several optical fiber 20 are divided into two parts, a portion optical fiber 20 go out light end 21 adjacent to
The light incident sides 41 of first light-strip 40 are placed, and the light end 21 that goes out of another part optical fiber 20 enters light adjacent to the second light-strip 40
Side 41 is placed, and is notably, in order to enable the light quantity that the light emission side face 42 of each light-strip is projected is equal, preferably one
The quantity of light splitting fibre 20 and the quantity of another part optical fiber 20 are equal.In addition, out quantity of the light end 21 at light incident sides 41 and
Arrangement mode determines the quantity and arrangement mode at light end 21 according to the actual situation not to be limited shown in Fig. 2.By
The absorption light SL that environment light collecting system 10 issues is entered in optical fiber 20 by the light inputting end 22 of each optical fiber 20 to be conducted extremely
Light end 21 out, wherein optical fiber 20 is a kind of excellent guiding device, and energy loss of the light in optical fiber 20 is very low, therefore can
To guarantee that enough light quantities reach out light end 21.By going out after the light that light end 21 is projected enters light-strip 40, in light-strip 40 into
It is projected after row mixing by light emission side face 42.
The light-strip 40 of the present embodiment further include the second side 43 opposite with light emission side face 42, be oppositely arranged and with light out
The bottom surface 45 and top surface 46 that side 42 connects.In order to enable maximumlly being penetrated into the light in light-strip 40 by light emission side face 42
Out, first side 44, second side 43, bottom surface 45 and top surface 46 are equipped with reflecting layer 50.The reflecting layer 50 will be for that will be mapped to
Light on face with the reflecting layer 50 is reflected back in light-strip 40, so that more light are projected by light emission side face 42.
The reflecting layer 50 of the present embodiment may be, for example, metallic reflector or dielectric reflective layer.The material of metallic reflector is for example
It can be silver, gold, aluminium etc. in visible light wave range material with high reflectivity.The material of high refractive index layer in dielectric reflective layer
It may be, for example, titanium dioxide (TiO2), hafnium oxide (HfO2), zirconium oxide (ZrO2) etc., the material of low-index film may be, for example,
Silica (SiO2), aluminum oxide (Al2O3) etc..
In the present embodiment, more uniform distribution is presented in order to use the light of the injection of light side 42, it can be in second side
Site 60 is set on 43.It can be scattered by site 60 when from the light emission to site 60 that light incident sides 41 enter, after being scattered
The overwhelming majority is eventually projected by light emission side face 42 light after multiple reflections in light-strip 40.By reasonably designing site 60
Arranged distribution, can make the finishing body projected by light emission side face 42 that more uniform distribution be presented, these are more uniformly distributed
Light by incidence surface 31 enter light guide plate 30 in be uniformly mixed, then projected by light-emitting surface 33, projected in this way through light-emitting surface 33
Light can be more uniform.In addition, the opposite place of the first side 44 in two light-strips 40, in order to avoid causing due to there are gap
The relatively low problem of the brightness of emergent light, for example, can will be close to site 60 in the second side 43 at first side 44 density or
Person's size increases.In addition, in the present embodiment, the shape of site 60 is cylinder, but not limited to this.
Referring to Fig. 4, the shape of site 60 can also be hemispherical.The shape of certain site 60 can also for pyramid or other
Shape.
The light import system of the present embodiment is usually applied in the side entrance back module of liquid crystal display, below will be to making
It is illustrated with the side entrance back module of the light import system of the present embodiment and liquid crystal display.
Referring to Fig. 5, side entrance back module 2 includes the light guide of backboard 70, light guide plate 30, optical diaphragm 90 and the present embodiment
Enter system 1.Light guide plate 30 includes an incidence surface 31, the bottom surface 32 for being oppositely arranged and being connected with incidence surface 31 and light-emitting surface 33, back
Plate 70 is set to the lower section of bottom surface 32, and optical diaphragm 90 is placed on top surface 33.The light that light import system 1 projects passes through incidence surface 31
It is uniformly mixed into light guide plate 30, then uniformly mixed light is projected from light-emitting surface 33.
Referring to Fig. 6, display panel 80 is set on side entrance back module 2 and forms complete liquid crystal display 3, then side enters
Formula backlight module 2 provides light to display panel 80, so that display panel 80 shows image.
In conclusion smooth import system, side entrance back module and liquid crystal display according to the present invention, by using two
A plurality of optical fiber can be divided into two parts, can reduce the width and length of light-strip in this way, enter to reduce side by a light-strip
The volume and weight of formula backlight module simultaneously saves cost.The width of light-strip and the reduction of length can also make far from equipped with site
The light of first side is easier to get on site, meanwhile, propagation path of the light in light-strip substantially shortens, and reduces and absorbs damage
Consumption.In addition, can make optical fiber goes out the light of light end-fire out equably from out by the shape and arrangement mode that rationally design site
The phenomenon that light side is injected into light guide plate, reduces the brightness unevenness of the incidence surface of light guide plate, improves side entrance back module
Optics taste.
Although the present invention is described in detail and shows referring to its exemplary embodiment, the common skill of this field
Art personnel it should be understood that in the case where not departing from the spirit and scope of the present invention being defined by the claims, can to its into
The various changes of row form and details.
Claims (10)
1. a kind of smooth import system, in side entrance back module characterized by comprising environment light collecting system, court
To environment light, absorbs the environment light and generate absorption light；Several guiding devices, each guiding device have a light inputting end and one
Light end out, adjacent to the environment light collecting system, the absorption light enters the light inputting end and is led to the light inputting end
The light end out；At least two light-strips, the light-strip includes a light emission side face, be connected with the light emission side face one enter light
Side and the second side opposite with the light incident sides, adjacent to an incidence surface of light guide plate, first is led in the light emission side face
The second side of striation and the second side of the second light-strip are oppositely arranged, and a part of guiding device goes out light end adjacent to described
The light incident sides of first light-strip, another part guiding device go out light end adjacent to the light incident sides of second light-strip.
2. smooth import system according to claim 1, which is characterized in that the quantity of a part of guiding device with it is described
The quantity of another part guiding device is equal.
3. smooth import system according to claim 1 or 2, which is characterized in that the guiding device is optical fiber.
4. smooth import system according to claim 1, which is characterized in that the light-strip further includes relative to the light out
The first side of side is connected and opposite bottom surface and top surface with the light emission side face, the first side, second side, bottom
Reflecting layer is equipped on face and top surface.
5. smooth import system according to claim 4, which is characterized in that the reflecting layer is argentum reflecting layer, golden reflecting layer
Or dielectric reflective layer.
6. smooth import system according to claim 4, which is characterized in that multiple sites are distributed in the first side.
7. smooth import system according to claim 6, which is characterized in that the shape of the site is hemispherical or cylinder
Shape.
8. smooth import system according to claim 1, which is characterized in that the material of the light-strip is PMMA.
9. a kind of side entrance back module, which is characterized in that including backboard, light guide plate, optical diaphragm and claim 1 to 8 times
Light import system described in one, the light guide plate includes an incidence surface, the bottom surface that is oppositely arranged and is connected with the incidence surface
And light-emitting surface, the backboard are set under the bottom surface, the optical diaphragm is set on the light-emitting surface.
10. a kind of liquid crystal display, which is characterized in that including display panel and side entrance back module as claimed in claim 9,
The display panel is placed on the side entrance back module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810907544.4A CN109031783A (en) | 2018-08-10 | 2018-08-10 | Light import system, side entrance back module and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810907544.4A CN109031783A (en) | 2018-08-10 | 2018-08-10 | Light import system, side entrance back module and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109031783A true CN109031783A (en) | 2018-12-18 |
Family
ID=64633565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810907544.4A Withdrawn CN109031783A (en) | 2018-08-10 | 2018-08-10 | Light import system, side entrance back module and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109031783A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712575A (en) * | 2019-02-20 | 2019-05-03 | 昆山弘锦威电子有限公司 | A kind of ELED dynamic backlight source control system and control method |
| CN111145645A (en) * | 2019-12-20 | 2020-05-12 | 维沃移动通信有限公司 | Display module and electronic equipment |
-
2018
- 2018-08-10 CN CN201810907544.4A patent/CN109031783A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712575A (en) * | 2019-02-20 | 2019-05-03 | 昆山弘锦威电子有限公司 | A kind of ELED dynamic backlight source control system and control method |
| CN111145645A (en) * | 2019-12-20 | 2020-05-12 | 维沃移动通信有限公司 | Display module and electronic equipment |
| CN111145645B (en) * | 2019-12-20 | 2022-01-28 | 维沃移动通信有限公司 | Display module and electronic equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181218 |
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| WW01 | Invention patent application withdrawn after publication |