CN105911752A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN105911752A CN105911752A CN201610253653.XA CN201610253653A CN105911752A CN 105911752 A CN105911752 A CN 105911752A CN 201610253653 A CN201610253653 A CN 201610253653A CN 105911752 A CN105911752 A CN 105911752A
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- light
- backlight module
- guide plate
- light guide
- backlight
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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
- G02F1/133605—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
-
- 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
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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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 provides a backlight module and a display device. The backlight module comprises a backlight source, a first packaging material membrane, a light guide plate and a first reflecting module. The first packaging material membrane is arranged above the light-exiting face of the light guide plate, and a first packaging material is packaged in the first packaging material membrane. The backlight source is arranged on the light entrance side of the light guide plate and used for generating excitation light to excite the first packaging material to generate excited light. The first reflecting module is arranged on the light-exiting face, close to the light entrance side, of the light guide plate. The proportion between the excitation light and the excited light of an edge area is moderate, and the problem that color cast is generated at the edge position is avoided..
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of backlight module and display device.
Background technology
Liquid crystal indicator is made up of liquid crystal panel, institutional framework, optics and some circuit boards etc..Owing to liquid crystal itself is the most luminous, need to configure some backlights and just can demonstrate picture.Wherein, backlight module, for providing brightness and the backlight being evenly distributed for liquid crystal indicator, makes liquid crystal indicator can show picture normally.
Backlight module can be divided into side entrance back module and down straight aphototropism mode set according to light source entrance positions difference, and wherein, down straight aphototropism mode set refers to light source such as light emitting diode (Light
Emitting Diode, is called for short LED) to place at the back array of backlight module, the light sent forms equally distributed backlight through the blooming piece such as light guide plate, brightening piece.Side entrance back module refers to the light source side at backlight module, and light to light guide plate, by changing into equally distributed backlight after light guide plate and blooming piece.
At present, in side entrance back module, in order to realize higher color territory, often select the fluorescent material that half-wave width is narrow, although and some fluorescent materials be stimulated produce light half-wave width narrower, but its properties of materials can not be placed directly in LED, so that be encapsulated in blooming piece, such as LED uses blue chip+red fluorescence powder, green fluorescence material is then arranged in blooming piece formation green fluorescent membrane, LED sends blue light and HONGGUANG (mixing shows as purple), after light arrives green fluorescent membrane, a blue light part can be absorbed by green fluorescence material and produce green glow, a part is directed through, HONGGUANG will not be absorbed by green fluorescence material and excite generation light, can be directed through, final blue light, green glow and HONGGUANG mixing produce white light.But when applying the backlight module that this fluorescence coating separates, position, edge can be blue, affects display effect.
Summary of the invention
The present invention provides a kind of backlight module and display device, to overcome the position, edge of backlight module in prior art can produce colour cast, the problem affecting display effect.
First aspect, the present invention provides a kind of backlight module, including:
Backlight, the first encapsulating material diaphragm, light guide plate and the first reflection subassembly；Described first encapsulating material diaphragm, is arranged on above the exiting surface of described light guide plate, and enclosed inside has the first encapsulating material；Described backlight, is arranged on the incident side of described light guide plate, is used for producing excitation light to excite described first encapsulating material to produce energized light；Described first reflection subassembly, is arranged on described light guide plate on the exiting surface of incident side.
Second aspect, the present invention provides a kind of display device, including:
Backlight module as according to any one of first aspect, display floater；
Wherein, described display floater is arranged at above described backlight module.
In the embodiment of the present invention, on the one hand, owing to arranging reflection subassembly on the exiting surface in the nearly incident side of light guide plate, reflection major part arrives the light of reflection subassembly reflecting surface, after reflection, light again continues with and reflects in light guide plate or reflect, decreasing purple encourages light in the direct shot of light guide plate only light source side, makes excitation light and energized light tend to balance, thus solves the problem that marginal position can produce colour cast.
On the other hand, owing to excitation light excites the energized radiation direction directivity of generation poor, including from the light of the first encapsulating material diaphragm outgoing and reverse sensing light guide board side light line, owing to having the first reflection subassembly on the exiting surface in the nearly incident side of light guide plate, this reflection subassembly again reflects light and makes it into the first encapsulating material diaphragm and be fully utilized, improve the amount of light of the energized green glow of edge region, relatively, so that excitation light and energized light tend to balance, advantageously account for the problem that marginal position can produce colour cast.
Therefore, in the embodiment of the present invention, owing to arranging reflection subassembly on the exiting surface in the nearly incident side of light guide plate, on the one hand excitation light amount of light is decreased at the marginal area near light source side, on the other hand improve the amount of light of energized light, so that the excitation light of marginal area and the ratio of energized light are moderate, compared with prior art, it is to avoid the problem that marginal position can produce colour cast..
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of the viewing area of backlight module；
Fig. 2 is that the light of backlight module propagates schematic diagram one；
Fig. 3 is that the light of backlight module propagates schematic diagram two；
Fig. 4 is existing back light module unit structure schematic diagram；
Fig. 5 is the structural representation of backlight module one embodiment of the present invention；
Fig. 6 is the light schematic diagram one of backlight module one embodiment of the present invention；
Fig. 7 is the light schematic diagram two of backlight module one embodiment of the present invention；
Fig. 8 is the structural representation of the another embodiment of backlight module of the present invention；
Fig. 9 is the structural representation of display device one embodiment of the present invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Fig. 1 is the schematic diagram of the viewing area of backlight module.Fig. 2 is that the light of backlight module propagates schematic diagram one.Fig. 3 is that the light of backlight module propagates schematic diagram two.In the backlight module that fluorescence coating separates, in order to solve the problem that position, edge can be blue, inventor is through lot of experiments and analyzes discovery, and the reason of the blue color of marginal area of backlight module is as follows:
First, LED sends blue light and HONGGUANG (mixing shows as purple), after light arrives green fluorescent membrane, a blue light part can be absorbed by green fluorescence material and produce green glow, a part is directed through, HONGGUANG will not be absorbed by green fluorescence material and excite generation light, can be directed through, and final blue and green light and HONGGUANG mixing produce white light.
nullAny point of viewing area in backlight module，It is all to be mixed (green fluorescent membrane absorbs the blue light components of purple light and produces green glow) by purple light (not exciting green fluorescent membrane directly to transmit the part of green fluorescent membrane) and the green glow produced from green fluorescent membrane，Because purple light is sent to propagate through light guide plate by LED reflexes to green fluorescent membrane with reflectance coating，Purple light beam angle Relatively centralized is in vertical direction the most as shown in Figure 2，And excited the green glow direction of outgoing to be from all directions by it，The different coloured light of two kinds of light directions is when the prismatic lens (BEF) above green fluorescent membrane and brightness enhancement film (DBEF)，Because of beam angle Relatively centralized, in vertical direction, major part is not reflected purple light by prism，But green glow thus is propagated in the middle of diaphragm by prismatic reflection because of beam angle conference，The most from left to right first、In three and four prisms, green glow is respectively through secondary total reflection、Reflection and refraction，And purple light beam angle Relatively centralized is in vertical direction，Therefore purple light only have passed through the refraction as shown in second prism in Fig. 2，The most as shown in Figure 1，
Single source producible purple hot spot is less, generation green glow hot spot is excited relatively to want by this single source, therefore, violet region corresponding to certain point wants more relatively small, corresponding green wavelength is more relatively large, green wavelength is more than the part of violet region, and green light components is mainly excited generation green glow to be complementary to one another by different violet region.
As shown in Figure 1, Figure 3, zone line, mixed by complete violet region and green wavelength, the most as shown in Figure 1, the certain point mixed by purple light and green glow of zone line, being that the green glow of the purple light by zonule and larger area mixes, the green glow exceeding violet region is by the purple light excited generation in other regions；And by antermarginal position, without other adjacent excite green glow supplement, the green wavelength Green composition of marginal position is not enough, thus causes marginal position color the most purple, the most as shown in Figure 1, the certain point mixed by purple light and green glow near marginal position, violet region keeps constant, and beyond the green wavelength of violet region, owing to being positioned at marginal position, supplement without outside green glow, thus cause color the most purple.
Incident side produces purple colour cast, in addition to above-mentioned reason.Fig. 4 is existing side entrance back modular structure schematic diagram.Further, as shown in Figure 4, backlight module includes from the bottom to top: reflectance coating 5, light guide plate 4, green fluorescent membrane 6, prismatic lens 7 and brightness enhancement film 8, also includes the backlight 3 being oppositely arranged with light guide plate, and glue frame 2.Wherein, on the one hand, owing to there being the light not much being coupled into light guide plate near incident side, reflect through glue frame 2, cause incident side viewing area purple light more, such as: light A；On the other hand, launch angle bigger light B to reflect when light guide plate 4 exiting surface, and can reflect when light guide plate 4 exiting surface more than launching angle less light C, therefore, stronger in light guide plate 4 incident side purple light light ray energy, substantial amounts of purple light is also had not excited by partial veil after by green fluorescent membrane, the problem causing producing purple colour cast in incident side.
It should be noted that, a kind of example of above-mentioned inclined purple, such as: when backlight is blue-light source, excited by blue ray and produced energized light by the diaphragm of green and red mixed fluorescent powder material package, now edge may be partially blue, concrete reason is similar to the above, and here is omitted.
Inventor solves above-mentioned colour cast problem, reduces light source excitation light at light guide plate near the exiting surface amount of light of incident side so that excitation light and energized light tend to balance, thus solve the problem that marginal position can produce colour cast in the specific embodiment of the invention.
The backlight module of the embodiment of the present invention can apply in display device, and the phenomenon producing colour cast mainly for backlight module marginal position improves.
With specific embodiment, technical scheme is described in detail below.These specific embodiments can be combined with each other below, may repeat no more in some embodiment for same or analogous concept or process.
Fig. 5 is the structural representation of backlight module one embodiment of the present invention.As it is shown in figure 5, the backlight module of the present embodiment, including:
Backlight the 3, first encapsulating material diaphragm 9, light guide plate 4 and reflection subassembly 10；
First encapsulating material diaphragm 9, is arranged on above the exiting surface of light guide plate 4, and enclosed inside has the first encapsulating material；
Backlight 3, is arranged on light guide plate 4 incident side, is used for producing excitation light to excite described first encapsulating material diaphragm to produce energized light；
First reflection subassembly 10, is arranged on the exiting surface of the nearly incident side of light guide plate 4.
Specifically, as a example by backlight uses LED blue chip+red fluorescence powder, and the first encapsulating material employing green light powder in the specific embodiment of the invention, thus solve inclined purple problem and illustrate.
Fig. 5 shows the technical scheme arranging reflection subassembly 10 on the exiting surface of the nearly incident side of light guide plate 4, when the purple light source that backlight 3 is LED blue chip+red fluorescence powder, first encapsulating material diaphragm 9 encapsulates green emitting phosphor, backlight 3 sends the excitation light source of purple, to excite, the first encapsulating material diaphragm 9 encapsulates the energized light that green emitting phosphor generation is green, encourage light to mix white light light with the purple transmitted through the first encapsulating material diaphragm 9.When backlight is blue led lamp, encapsulating phosphor material powder in the first encapsulating material diaphragm 9 is red and green emitting phosphor material.
In the embodiment of the present invention, on the one hand, as shown in Figure 6, owing to arranging reflection subassembly on the exiting surface in the nearly incident side of light guide plate 4, reflection major part arrives the light of reflection subassembly reflecting surface, and after reflection, light again continues with and reflects in light guide plate or reflect, and decreases the purple excitation light direct shot in light guide plate only light source side, make excitation light and energized light tend to balance, thus solve the problem that marginal position can produce colour cast.In actual applications, the parameters such as the width of reflection subassembly 10, position and reflectance can be set according to actual needs so that green glow and the balanced proportion of purple light, just will not have colour cast problem.
On the other hand, as shown in Figure 7, owing to excitation light A excites the energized radiation direction directivity of generation poor, including from the light A1 of the first encapsulating material diaphragm 9 outgoing and reverse sensing light guide board side light line A2, owing to there being the first reflection subassembly 10 on the exiting surface in the nearly incident side of light guide plate 4, this reflection subassembly 10 again reflects light A2 and makes it into the first encapsulating material diaphragm 9 and be fully utilized, improve the amount of light of the energized green glow of edge region, relatively, so that excitation light and energized light tend to balance, advantageously account for the problem that marginal position can produce colour cast.
Therefore, in the embodiment of the present invention, owing to arranging reflection subassembly on the exiting surface in the nearly incident side of light guide plate, on the one hand excitation light amount of light is decreased at the marginal area near light source side, on the other hand improve the amount of light of energized light, so that the excitation light of marginal area and the ratio of energized light are moderate, compared with prior art, it is to avoid the problem that marginal position can produce colour cast.
Technical scheme can be widely used in the display of high the colour gamut field, such as blue-ray LED excitation quantum point film that excitation light source separates with excited target fluorescence diaphragm, and blue-ray LED excites sulfide Huang film etc., and all can use in side entering type module.
On the basis of above-described embodiment, further, as a kind of enforceable mode, as shown in Figure 8, on the basis of more above-mentioned embodiments, groove 11 is also included, groove 11 is arranged on the exiting surface of the nearly incident side of light guide plate 4, wherein, groove 11 inwall is provided with the second reflection subassembly.Further, the first reflection subassembly 10 extends on the incidence surface of light guide plate 4.In the present embodiment, as shown in Figure 8, the excitation light of the wide-angle of backlight 3 outgoing enters light guide plate from the plane of incidence of light guide plate, then, second reflection subassembly reflection on the inwall of groove 11, after the first reflection subassembly extended through incidence surface on light guide plate 4 reflects, continue in light guide plate internal reflection or refraction.
In the present embodiment, continue as shown in Figure 8, on the one hand, owing to arranging the first reflection subassembly and the second reflection subassembly on the exiting surface in the nearly incident side of light guide plate, reflection major part arrives the light of reflection subassembly reflecting surface, and after reflection, light again continues with and reflects in light guide plate or reflect, and decreases the purple excitation light direct shot in light guide plate only light source side, make excitation light and energized light tend to balance, thus solve the problem that marginal position can produce colour cast.On the other hand, excitation light is through the second reflection subassembly and two secondary reflections of the first reflection subassembly, light is made to reflex to the light guide plate base surface area near incident side, then, occurring order of reflection more preferable in light guide plate, light guide plate goes out light and more tends to uniform, so, being unlikely to owing to causing the excitation light of marginal area excessively to reduce after arranging reflection subassembly, the excitation light and the ratio of energized light that are more beneficial for edge are moderate, reduce the problem that marginal position can produce colour cast.
When backlight is blue led lamp, encapsulating phosphor material powder in the first encapsulating material diaphragm 9 be red and green emitting phosphor material or quanta point material, and above-mentioned concrete principle is described in detail that here is omitted the most in the above-described embodiments.
On the basis of above-described embodiment, further, as a kind of enforceable mode, the inwall of groove can be with cambered surface.Can also be square.
On the basis of above-described embodiment, further, can be a kind of coating reflecting material as a kind of enforceable mode, the first reflection subassembly and the second reflection subassembly, it is also possible to paste a kind of reflectance coating.
On the basis of above-described embodiment, further, as a kind of enforceable mode, the first encapsulating material can be that material penetrated by a kind of green emitting phosphor, a kind of green light quantum point material composition can also be pasted, it is also possible to material penetrated by green emitting phosphor and green light quantum point material mixing forms.
Fig. 9 is the structural representation of display device one embodiment of the present invention.As it is shown in figure 9, the display device of the present embodiment, including:
Backlight module as according to any one of above-described embodiment and display floater；
Wherein, display floater is arranged at above backlight module.
In actual applications, display floater can be thin film transistor LCD device (Liquid Crystal Display is called for short LCD).
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a backlight module, it is characterised in that including:
Backlight, the first encapsulating material diaphragm, light guide plate and the first reflection subassembly；
Described first encapsulating material diaphragm, is arranged on above the exiting surface of described light guide plate, and enclosed inside has the first encapsulating material；
Described backlight, is arranged on the incident side of described light guide plate, is used for producing excitation light to excite described first encapsulating material to produce energized light；
Described first reflection subassembly, is arranged on described light guide plate on the exiting surface of incident side.
Backlight module the most according to claim 1, it is characterised in that described backlight module also includes:
The nearly incident side exiting surface of light guide plate is provided with groove, described groove inner wall is provided with the second reflection subassembly.
Backlight module the most according to claim 2, it is characterised in that described backlight module also includes:
Described first reflection subassembly extends on the incidence surface of described light guide plate.
Backlight module the most according to claim 3, it is characterised in that the inwall of described groove is cambered surface or square.
5. according to the backlight module described in any one of claim 1-4, it is characterised in that described first encapsulating material has phosphor material powder or quanta point material.
Backlight module the most according to claim 5, it is characterised in that when the purple light source that backlight is LED blue chip+red fluorescence powder, described phosphor material powder is green emitting phosphor material, described quanta point material is green quanta point material；Or
When backlight is blue LED die, described phosphor material powder is red and green emitting phosphor material, and described quanta point material is red and green quanta point material.
7. a display device, it is characterised in that including:
Backlight module as described in any one of claim 1 to 6, display floater；
Wherein, described display floater is arranged at above described backlight module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610253653.XA CN105911752A (en) | 2016-04-22 | 2016-04-22 | Backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610253653.XA CN105911752A (en) | 2016-04-22 | 2016-04-22 | Backlight module and display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784236A (en) * | 2016-11-22 | 2017-05-31 | 深圳市华星光电技术有限公司 | LED source and its manufacture method, display panel |
| CN107092134A (en) * | 2017-06-07 | 2017-08-25 | 深圳Tcl新技术有限公司 | Backlight module and display device |
| CN107203064A (en) * | 2017-07-03 | 2017-09-26 | 厦门天马微电子有限公司 | A kind of display device |
| CN110007511A (en) * | 2017-12-22 | 2019-07-12 | 夏普株式会社 | Lighting device and image display device |
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| CN1800942A (en) * | 2004-10-25 | 2006-07-12 | 三星电子株式会社 | Light guide plate, back light assembly having the same and display apparatus having the same |
| WO2012124364A1 (en) * | 2011-03-14 | 2012-09-20 | 富士フイルム株式会社 | Light guide plate and surface illumination device |
| CN105090808A (en) * | 2014-05-13 | 2015-11-25 | 扬升照明股份有限公司 | Backlight module |
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| CN1515937A (en) * | 2003-01-03 | 2004-07-28 | ���ǵ�����ʽ���� | Light beam guiding method, optical fiber equipment, back light assembly and liquid crystal display device |
| CN1800942A (en) * | 2004-10-25 | 2006-07-12 | 三星电子株式会社 | Light guide plate, back light assembly having the same and display apparatus having the same |
| WO2012124364A1 (en) * | 2011-03-14 | 2012-09-20 | 富士フイルム株式会社 | Light guide plate and surface illumination device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784236A (en) * | 2016-11-22 | 2017-05-31 | 深圳市华星光电技术有限公司 | LED source and its manufacture method, display panel |
| CN107092134A (en) * | 2017-06-07 | 2017-08-25 | 深圳Tcl新技术有限公司 | Backlight module and display device |
| CN107203064A (en) * | 2017-07-03 | 2017-09-26 | 厦门天马微电子有限公司 | A kind of display device |
| CN110007511A (en) * | 2017-12-22 | 2019-07-12 | 夏普株式会社 | Lighting device and image display device |
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