CN105334662A - Side light type backlight module - Google Patents
Side light type backlight module Download PDFInfo
- Publication number
- CN105334662A CN105334662A CN201510783651.7A CN201510783651A CN105334662A CN 105334662 A CN105334662 A CN 105334662A CN 201510783651 A CN201510783651 A CN 201510783651A CN 105334662 A CN105334662 A CN 105334662A
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- Prior art keywords
- beam splitting
- light
- optical beam
- backlight module
- splitting film
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- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
-
- 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
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- 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
-
- 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
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to an optical field and discloses a side light type backlight module. The side light type backlight module comprises a light guide plate and a light bar, wherein a plurality of light sources are mounted on the light bar; the light sources and a light incidence face of the light guide plate are arranged relatively; and the light incidence face of the light guide plate is provided with an optical beam splitting membrane. The side light type backlight module provided by the invention is economical and practical; the optical beam splitting membrane is arranged on the light incidence side of the light guide plate so that the light intensity distribution of the light incidence side of the light guide plate is improved; and a phenomenon that the light incidence side is not evenly bright and dark is weakened and the light emitting efficiency of an LED is efficiently utilized.
Description
Technical field
The present invention relates to optical field, particularly relate to a kind of side-light backlight module.
Background technology
Liquid crystal display is current the most widely used display product, and common liquid crystal display is mainly made up of a liquid crystal panel and a backlight module, and wherein liquid crystal panel itself is not luminous, and the light source of panel is provided by backlight module.Present TV is more and more higher for appearance requirement, and be wherein more and more thinner for whole set of television thickness requirement, this also makes side-light backlight TV become main flow.
Fig. 1 is the view of the bright dark inequality of light guide plate appearance of side-light backlight module in prior art, at present, the TV of slimming uses the LED-backlit module of side-light type usually, the LED luminescence of side-light backlight module is pointolite instead of continuous print line source, and incident side on LGP also can be caused to occur the phenomenon of brightness irregularities; In addition, the LED of side-light backlight module is spaced apart, thus there is non-light-emitting area between adjacent LED and cause light guide plate to enter sidelight light leakage phenomena, the phenomenon occurring brightness irregularities in the upper incident side of light guide plate (LightGuidePlate, LGP) can be caused; Moreover, along with the luminescence efficiency of LED and the lifting of liquid crystal panel penetrance, the LED that present LED-backlit module usage quantity is less, but increase the spacing between LED, cause incident side brightness irregularities phenomenon on LGP more obvious.
In prior art, in order to solve the problem of bright dark inequality, general by increasing device between the LED lamp bar and light guide plate of backlight module, light guide plate is arrived again after first LED luminescence being processed, and in prior art, in order to improve the luminous energy efficiency of LED lamp source, spacing between LED light source and light guide plate is the smaller the better, in the case, treating apparatus to be installed additional between, must need the structure of changing original backlight module, and the spacing strengthening LED and light guide plate can bring other energy consumption problems again.
To sum up, research and develop the uniform side-light backlight module of a kind of light inlet, do not change structure in advance under, realize effectively improving the problem of the bright dark inequality of incident side, have vital effect to the development of liquid crystal display.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of the invention is: a kind of side-light backlight module is provided, structure is simple, economical and practical, utilize and optical beam splitting film is set in light guide plate incident side, improve the light distribution of light guide plate incident side, weaken the phenomenon of the bright dark inequality of incident side, the luminescence efficiency of efficiency utilization LED.
In order to solve the technical matters in background technology, the invention provides a kind of side-light backlight module, comprise light guide plate and lamp bar, described lamp bar is provided with several light sources, the incidence surface of described light source and described light guide plate is oppositely arranged, and the incidence surface of described light guide plate is provided with optical beam splitting film.
Further, the proportional range that light source incidence is carried out transmittance and reflectance to the light beam of optical beam splitting film by described optical beam splitting film is 2:8-8:2.
Particularly, described light source and optical beam splitting film are multiple and one_to_one corresponding, and each optical beam splitting film and corresponding light source, just to setting, have interval between adjacent optical beam splitting film.
Side-light backlight module of the present invention also comprises reflex housing, described light source is positioned at described reflex housing, one end of described reflex housing is fixed on lamp bar, the other end has bright dipping opening, one end of described reflex housing expands outwardly to bright dipping opening direction, the incidence surface of the end and described light guide plate described reflex housing with bright dipping opening is close to setting, and described reflex housing inwall is provided with reflection layer.
Side-light backlight module of the present invention also comprises the second beam splitting coating, the transmittance and reflectance ratio value of described second beam splitting coating is not less than the transmittance and reflectance ratio value of described optical beam splitting film, described second beam splitting coating is arranged on the interval between adjacent optical beam splitting film, and described optical beam splitting film and the second beam splitting coating form continual rectangular beam splitting coating.
Preferably, the transmittance and reflectance proportional range of described optical beam splitting film is 1:4-3:2.
Further, the transmittance and reflectance proportional range of described optical beam splitting film is 1:4-3:2, and the transmittance and reflectance proportional range of described second beam splitting coating is 3:2-4:1.
Particularly, the length of described light source is L1, and the spacing between adjacent light source is L2, and the length range of described optical beam splitting film is that (L1+0.125*L2) is to (L1+0.25*L2).
Alternatively, described optical beam splitting film is made up of PET film or metal film.
Particularly, described light source is LED original paper.
Preferably, the thickness range of described optical beam splitting film is 300nm-200um.
Adopt technique scheme, the present invention has following beneficial effect: 1. optical beam splitting film is attached in LGP incident side just to the region of LED, the light beam part that LED sends by optical beam splitting film carries out transmission, a part reflects, the light distribution of even LED point light source luminescence, weakens the phenomenon of the bright dark inequality of LGP incident side; 2. the interval between adjacent optical beam splitting film attaches the higher saturating anti-beam splitting coating of height of transmittance and reflectance ratio, make the LGP light inlet region internal reflection degree LED is just right strong, in the LGP light inlet region that non-light-emitting area is just right between LED, transmission is strong, the difference between the light distribution Wave crest and wave trough reducing LGP incident side further; 3. owing to improving the light distribution between luminous zone and non-light-emitting area, LED number can be saved, make full use of the luminescence efficiency of LED; 4. to be only sticked optical beam splitting film in LGP incident side, described optical beam splitting film is thinner, and without the need to making adjustment to original back light module unit structure, operation steps is simple; 5. at the additional dress reflex housing of LED, reduce LED luminescence loss, improve energy utilization rate.In sum, side light type backlight module group structure of the present invention is simple, economical and practical, utilizes and arranges optical beam splitting film in light guide plate incident side, improve the light distribution of light guide plate incident side, weaken the phenomenon of the bright dark inequality of incident side, the luminescence efficiency of efficiency utilization LED.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the view of the bright dark inequality of light guide plate appearance of side-light backlight module in prior art;
Fig. 2 is the structural representation of the side-light backlight module that the embodiment of the present invention 1 provides;
Fig. 3 is the structural representation of the side-light backlight module that the embodiment of the present invention 2 provides;
Fig. 4 is the schematic diagram of the optical beam splitting film of the side-light backlight module that the embodiment of the present invention provides.
Wherein, in figure, Reference numeral corresponds to: 1-light guide plate, 2-lamp bar, 3-light source, 4-optical beam splitting film, 5-second beam splitting coating.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of protection of the invention.
The structural representation of the side-light backlight module that embodiment 1: Fig. 2 provides for the embodiment of the present invention, can clearly be seen that from figure, the side-light backlight module that the present embodiment provides comprises light guide plate 1 and lamp bar 2, described lamp bar 2 is provided with several light sources 3, described light source 3 is oppositely arranged with the incidence surface of described light guide plate 1, the incidence surface of described light guide plate 1 is provided with optical beam splitting film 4, and wherein, described light source 3 is LED element.
Described optical beam splitting film 4 carries out transmission for the light beam part inciding optical beam splitting film 4 sent by LED, a part reflects, Fig. 4 is the schematic diagram of the optical beam splitting film of the side-light backlight module that the embodiment of the present invention provides, as seen from the figure, when light incides the upper surface of described optical beam splitting film 4, part light reflection, part ght transmission is incident to lower surface through upper surface, when this part light reaches the lower surface of described optical beam splitting film 4, light is divided into again a part for reflection and a part for transmission, wherein the lower surface partially passing through optical beam splitting film 4 of transmission enters light guide plate 1, and the some light of reflection arrives the upper surface of optical beam splitting film 4, light is divided into the part transmiting upper surface and the part reflexing to lower surface by third time, circulate with this, the light inciding optical beam splitting film 4 is divided into many light finally by circulation transmittance and reflectance, reach the effect improving optical power detection.In the present embodiment, described optical beam splitting film 4 is preferably made up of PET film, and the thickness of described optical beam splitting film 4 is 300nm.
Particularly, described light source 3 and optical beam splitting film 4 are multiple and one_to_one corresponding, each optical beam splitting film 4 and corresponding light source 3 are just to setting, between adjacent optical beam splitting film 4, there is interval, the zonal ray just right due to light source 3 is stronger, so need to utilize optical beam splitting film 4 to reflect a part of light, and the incident side just right in non-light-emitting area, light can direct incident light guide plate, improve the light distribution of light guide plate incident side, make the light distribution Wave crest and wave trough of incident side become difference less, weaken the phenomenon of bright dark inequality.
In the present embodiment, the transmittance and reflectance proportional range of described optical beam splitting film 4 is 1:4-3:2, the pad pasting district of optical beam splitting film 4 is relative in LED light source, optical beam splitting film 4 is discrete distributions, the length of the optical beam splitting film 4 of every part is relevant to die set light source, the length ratio in pad pasting district and not pad pasting district can decide according to the structural design of backlight module, specifically ground can be implemented, the length of described light source 3 is L1, spacing between adjacent light source 3 is L2, then the length range of described optical beam splitting film 4 is that (L1+0.125*L2) is to (L1+0.25*L2), here the method designing optical beam splitting film 4 length is only a kind of mode that can realize the application, the application does not limit this length computation mode, other determine the method for optical beam splitting film 4 length, such as according to the structure of actual backlight module, the actual conditions such as the spacing of light guide plate 1 and LED, binding tests obtains the length of optimized optical beam splitting film 4, the application can be realized equally, do not repeat them here.
The structural representation of the side-light backlight module that embodiment 2: Fig. 3 provides for the embodiment of the present invention, can clearly be seen that from figure, described light source 3 and optical beam splitting film 4 are multiple and one_to_one corresponding, each optical beam splitting film 4 and corresponding light source 3 are just to setting, between adjacent optical beam splitting film 4, there is interval, but, as different from Example 1, the side-light backlight module of the present embodiment also comprises the second beam splitting coating 5, the transmittance and reflectance ratio value of described second beam splitting coating 5 is not less than the transmittance and reflectance ratio value of described optical beam splitting film 4, described second beam splitting coating 5 is arranged on the interval between adjacent optical beam splitting film 4, described optical beam splitting film 4 and the second beam splitting coating 5 form continual rectangular beam splitting coating.
In the present embodiment; described optical beam splitting film 4 is made up of metal film; the thickness range of described optical beam splitting film 4 is 200um; but the present invention's two kinds of not limiting in embodiment 1 and 2 make the material of optical beam splitting film 4; other materials that can realize optical beam splitting all belong to protection scope of the present invention; and the thickness of the optical beam splitting film 4 enumerated is only attainable embodiment, the present invention does not limit the thickness of optical beam splitting film 4.
Further, the transmittance and reflectance proportional range of described optical beam splitting film 4 is 1:4-3:2, the transmittance and reflectance proportional range of described second beam splitting coating 5 is 3:2-4:1, obviously, the saturating inverse ratio of the second beam splitting coating 5 is not less than the saturating inverse ratio of optical beam splitting film 4, make the LGP light inlet region internal reflection degree LED is just right strong, in the LGP light inlet region that non-light-emitting area is just right between LED, transmission is strong, difference between the light distribution Wave crest and wave trough reducing LGP incident side further, improves the light taste of LGP incident side.
In the present embodiment, the length ratio of optical beam splitting film 4 and the second beam splitting coating 5 can determine according to design of backlight module, ground can be implemented, the length of described light source 3 is L1, spacing between adjacent light source 3 is L2, the length range of described optical beam splitting film 4 is that (L1+0.125*L2) is to (L1+0.25*L2), and the gap length between two optical beam splitting films 4 is the length of the second beam splitting coating 5, here the method designing optical beam splitting film 4 length is only a kind of mode that can realize the application, the application does not limit this length computation mode, other determine the method for optical beam splitting film 4 length, such as according to the structure of actual backlight module, the actual conditions such as the spacing of light guide plate 1 and LED, binding tests obtains the length of optimized optical beam splitting film 4, the application can be realized equally, do not repeat them here.
Embodiment 3: with embodiment 1 and 2 unlike, in order to reduce optical energy loss, improve the incident efficiency of LGP incident light, side-light backlight module in the present embodiment also comprises reflex housing, described light source 3 is positioned at described reflex housing, one end of described reflex housing is fixed on lamp bar 2, the other end has bright dipping opening, one end of described reflex housing expands outwardly to bright dipping opening direction, the incidence surface of the end and described light guide plate 1 described reflex housing with bright dipping opening is close to setting, described reflex housing inwall is provided with reflection layer, so, the light that described LED light source sends, and all can reflect at described reflex housing inwall through the light of optical beam splitting film 4 one or many reflection, be conducive to light to incide in LGP as far as possible high usage.
Side light type backlight module group structure of the present invention is simple, economical and practical, utilizes and arranges optical beam splitting film in light guide plate incident side, improve the light distribution of light guide plate incident side, weaken the phenomenon of the bright dark inequality of incident side, the luminescence efficiency of efficiency utilization LED.
Above disclosedly be only several preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (10)
1. a side-light backlight module, comprise light guide plate (1) and lamp bar (2), described lamp bar (2) is provided with several light sources (3), it is characterized in that, described light source (3) is oppositely arranged with the incidence surface of described light guide plate (1), the incidence surface of described light guide plate (1) is provided with optical beam splitting film (4).
2. side-light backlight module according to claim 1, it is characterized in that, the proportional range that the light beam that light source (3) is incided optical beam splitting film (4) by described optical beam splitting film (4) carries out transmittance and reflectance is 2:8-8:2.
3. side-light backlight module according to claim 1, it is characterized in that, described light source (3) and optical beam splitting film (4) are multiple and one_to_one corresponding, each optical beam splitting film (4) and corresponding light source (3), just to setting, have interval between adjacent optical beam splitting film (4).
4. side-light backlight module according to claim 3, it is characterized in that, also comprise reflex housing, described light source (3) is positioned at described reflex housing, one end of described reflex housing is fixed on lamp bar (2), and the other end has bright dipping opening, and one end of described reflex housing expands outwardly to bright dipping opening direction, the incidence surface of the end and described light guide plate (1) described reflex housing with bright dipping opening is close to setting, and described reflex housing inwall is provided with reflection layer.
5. side-light backlight module according to claim 3, it is characterized in that, also comprise the second beam splitting coating (5), the transmittance and reflectance ratio value of described second beam splitting coating (5) is not less than the transmittance and reflectance ratio value of described optical beam splitting film (4), described second beam splitting coating (5) is arranged on the interval between adjacent optical beam splitting film (4), and described optical beam splitting film (4) and the second beam splitting coating (5) form continual rectangular beam splitting coating.
6. side-light backlight module according to claim 3, is characterized in that, the transmittance and reflectance proportional range of described optical beam splitting film (4) is 1:4-3:2.
7. side-light backlight module according to claim 5, it is characterized in that, the transmittance and reflectance proportional range of described optical beam splitting film (4) is 1:4-3:2, and the transmittance and reflectance proportional range of described second beam splitting coating (5) is 3:2-4:1.
8. according to the side-light backlight module in claim 3-7 described in any one, it is characterized in that, the length of described light source (3) is L1, spacing between adjacent light source (3) is L2, and the length range of described optical beam splitting film (4) is that (L1+0.125*L2) is to (L1+0.25*L2).
9. according to the side-light backlight module in claim 1-7 described in any one, it is characterized in that, described light source (3) is LED original paper, and described optical beam splitting film (4) is made up of PET film or metal film.
10. side-light backlight module according to claim 9, is characterized in that, the thickness range of described optical beam splitting film (4) is 300nm-200um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783651.7A CN105334662A (en) | 2015-11-16 | 2015-11-16 | Side light type backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783651.7A CN105334662A (en) | 2015-11-16 | 2015-11-16 | Side light type backlight module |
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| Publication Number | Publication Date |
|---|---|
| CN105334662A true CN105334662A (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510783651.7A Pending CN105334662A (en) | 2015-11-16 | 2015-11-16 | Side light type backlight module |
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| CN (1) | CN105334662A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459890A (en) * | 2018-12-25 | 2019-03-12 | 厦门天马微电子有限公司 | Backlight module and display device |
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| CN2771894Y (en) * | 2005-02-02 | 2006-04-12 | 科桥电子股份有限公司 | Structure improvement of light guide board |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459890A (en) * | 2018-12-25 | 2019-03-12 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN109459890B (en) * | 2018-12-25 | 2021-07-23 | 厦门天马微电子有限公司 | Backlight module and display device |
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Application publication date: 20160217 |
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