CN105911751B - Backlight module and liquid crystal display - Google Patents
Backlight module and liquid crystal display Download PDFInfo
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- CN105911751B CN105911751B CN201610250299.5A CN201610250299A CN105911751B CN 105911751 B CN105911751 B CN 105911751B CN 201610250299 A CN201610250299 A CN 201610250299A CN 105911751 B CN105911751 B CN 105911751B
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- 230000003287 optical effect Effects 0.000 claims abstract description 158
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- 239000003292 glue Substances 0.000 description 15
- 239000012528 membrane Substances 0.000 description 4
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- 238000009792 diffusion process Methods 0.000 description 2
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention provides a kind of backlight module and liquid crystal display, comprising: fixed frame is provided with diaphragm fixed part on the support arm upper surface including side wall and the support arm extended along the side wall vertical direction；Optical diaphragm group, including brightness enhancement film and the first optical diaphragm, first optical diaphragm is set to the brightness enhancement film close to the fixed frame side and is adjacent to the brightness enhancement film, wherein, the brightness enhancement film and first optical diaphragm in the optical diaphragm group are provided with diaphragm edge protruding portion, and the brightness enhancement film in the optical diaphragm group and first optical diaphragm pass through the diaphragm edge protruding portion and be fixed on fixed frame with diaphragm fixed part cooperation；Wherein, the diaphragm edge protruding portion of the diaphragm edge protruding portion of the brightness enhancement film and first optical diaphragm respectively includes not overlapping each other part.Reduce the shadow problem of display visible area.
Description
Technical field
The present invention relates to technical field of liquid crystal display more particularly to a kind of backlight modules and liquid crystal display.
Background technique
Liquid crystal display includes liquid crystal display panel and provides the backlight module of light source for liquid crystal display panel, wherein backlight module
Processing is homogenized including point light source (such as: LED luminescence chip excites light conversion material and shines), to carry out light in point light source optical path
Optical element (such as: light guide plate, optical diaphragm) and provide and fix and support fixation kit (backlight and the glue frame of effect
Deng).
In the prior art, it is the shell rim narrow side for realizing liquid crystal display, is reduced to diaphragm hangers and reserves frame
Space generallys use the technical solution set on diaphragm, such as: diaphragm is fixed on glue frame support arm upper surface by diaphragm hangers,
As shown in Figure 1, backlight module 100 includes: glue frame 20, backboard (not shown) and optical diaphragm 10, wherein glue frame 20 includes
Support arm 201 and side wall 202, side wall 202 engages to form inner cavity to accommodate LED light source and light guide plate etc. with backboard, and passes through
The hangers column 2011 and 101 upper hanging hole 1011 of diaphragm hangers being arranged on 201 upper surface of support arm cooperate, by optical diaphragm 10
It is fixed on 201 upper surface of support arm of glue frame 20.
In the liquid crystal display for including backlight module 100, easily occur in 2011 position of hangers column of glue frame 20
Shadow phenomenon.Further, to solve the problems, such as the shadow, a kind of simple direct solution: the hangers column in glue frame 20
2011 surrounding apertures are acted on reaching in the shadow area light filling, but only brighter in position of opening in dark space, are difficult to solve
Brightness unevenness problem.
In order to more solve the problems, such as above-mentioned shadow, inventor is tied by learning after a large amount of test experiments and optical analysis
It closes shown in Fig. 2 a and Fig. 2 b, 10 shape of Multilayer Film (including hangers) is almost the same, and the Multilayer Film being superimposed 10
Edge is tightly attached on 20 upper surface of glue frame.By diagram it is found that display picture brightness is by from surrounding all angles light
It provides, and in diaphragm 10 and 20 overlapping regions of glue frame, since 20 support arm of glue frame stops to inject light, transmit diaphragm
10 light are less and form light dark space, corresponding that display shadow is easily formed in the fringe region of liquid crystal display panel.
Specifically, including: one in the fringe region light of liquid crystal display panel in non-diaphragm hangers region as shown in Figure 2 a
Divide after changing the direction of propagation to the side wall of glue frame 20 after optical diaphragm 10 by 30 emergent ray of light guide plate, reflexes to liquid crystal surface
Plate, the fringe region light filling which plays the role of as liquid crystal display panel.In conjunction with shown in Fig. 2 b, due to there is diaphragm hangers
Place is changed this some light of the direction of propagation by 30 emergent ray of light guide plate, in dark space without glue frame side wall through optical diaphragm 10
It is absorbed, therefore, the light that liquid crystal display panel is transmitted at diaphragm hangers is less, in this way, on the fringe region of liquid crystal display panel
Shadow is formed at diaphragm hangers.It should be noted that forming shadow in diaphragm hangers region is not limited to above-mentioned reason, for example, diaphragm
101 upper hanging hole 1011 of hangers is to the extinction etc. of hangers column 2011 in light destruction and glue frame 20, all exacerbation shadow degree.
Further, as shown in Figure 2 c, it theoretically solves the problems, such as above-mentioned shadow, as far as possible designs diaphragm dark space in liquid
In the non-visible area domain in the area BM of crystal panel, influence of the dark space to visible display area is reduced.But due to being wanted in backlight module
Multi-layer optical membrane, including a variety of membrane combinations such as brightness enhancement film and diffusion barrier are set, wherein horizontal row is arranged in blast film surface
The micro-structure of cloth can carry out horizontal direction stretching for light dark space is formed in glue frame, and the dark space after optical diaphragm still can
It extends on visible area, therefore, dark space forms display shadow problem on visible area.
Summary of the invention
The present invention provides a kind of backlight module and liquid crystal display, reduces above-mentioned since optical diaphragm fixed form makes glue
Light dark space further expands at frame, and brings the shadow problem of display visible area.
In a first aspect, the embodiment of the present invention provides a kind of backlight module, comprising: fixed frame, including side wall and along the side
The support arm that wall vertical direction extends, is provided with diaphragm fixed part on the support arm upper surface；Optical diaphragm group, including brightness enhancement film
With the first optical diaphragm, first optical diaphragm is set to the brightness enhancement film close to the fixed frame side and is adjacent to described
Brightness enhancement film, wherein it is prominent that the brightness enhancement film and first optical diaphragm in the optical diaphragm group are provided with diaphragm edge
Portion out, the brightness enhancement film and first optical diaphragm in the optical diaphragm group pass through the diaphragm edge protruding portion with
The diaphragm fixed part cooperation is fixed on fixed frame；Wherein, the diaphragm edge protruding portion of the brightness enhancement film and first light
It learns and respectively includes not overlapping each other part, the diaphragm edge protruding portion of the brightness enhancement film and institute on the diaphragm edge protruding portion of diaphragm
It states between existing centainly between the not lap of the diaphragm edge protruding portion of the first optical diaphragm and the support arm of the fixed frame
Gap can enter in the gap close to a part of light in support arm outer profile edge, so that the diaphragm edge of brightness enhancement film is prominent
Portion is enhanced with light in the region of the not lap of the diaphragm edge protruding portion of first optical diaphragm.
Second aspect, the embodiment of the present invention provide a kind of liquid crystal display, including above-mentioned backlight module.
For compared with the prior art, as shown in figure 8, in the prior art due to the diaphragm edge protruding portion of brightness enhancement film and first
The shape of the diaphragm edge protruding portion of optical diaphragm is consistent, basic to keep all overlappings together, in this way, diaphragm edge protruding portion with
Fixed frame support arm is bonded together completely, is formed light dark space, is then acted on through brightness enhancement film extension it is easier that dark space is extended to visually
Region, and form display shadow problem.And in the above-mentioned some embodiments of the present invention, on the one hand, as shown in figure 4, the first optical film
The diaphragm edge protruding portion of piece includes the not lap with the diaphragm edge protruding portion of brightness enhancement film, since no increment film is to light
Extension effect, therefore, not will cause the scaling problem in dark area, can reduce shadow area to the greatest extent；On the other hand, such as Fig. 6 institute
Show, on the diaphragm edge protruding portion of brightness enhancement film include not with the diaphragm edge protruding portion lap of the first optical diaphragm, and
It is additionally provided with the first optical diaphragm between brightness enhancement film and the support arm upper surface of fixed frame, in this way, the diaphragm edge of increment film is prominent
The not lap with the diaphragm edge protruding portion of the first optical diaphragm in portion, exist between the support arm of fixed frame it is certain between
Gap can enter in gap close to a part of light A in support arm outer profile edge, so that light is increased in the region of non-overlap part
By force, therefore, even if the region of non-overlap part will receive brightness enhancement film extension, still, dark space is able to brightness reinforcement in the region, no
It will form the shadow problem in big region.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the fixed schematic diagram of diaphragm in backlight module in the prior art；
Fig. 2 a is the light schematic diagram one of backlight module in Fig. 1；
Fig. 2 b is the light schematic diagram two of backlight module in Fig. 1；
Fig. 2 c is the light schematic diagram three of backlight module in Fig. 1；
Fig. 3 is the fixed schematic diagram of diaphragm of backlight module in the embodiment of the present invention one；
Fig. 4 is the Section A-A schematic diagram of backlight module in the embodiment of the present invention one；
Fig. 5 is the C-C schematic cross-section of backlight module in the embodiment of the present invention one；
Fig. 6 is the section B-B schematic diagram of backlight module in the embodiment of the present invention one；
Fig. 7 is film fixing structure decomposition diagram in backlight module in the embodiment of the present invention one；
Fig. 8 is backlight module in the prior art and Fig. 4 a contrast schematic diagram；
Fig. 9 is the fixed schematic diagram of diaphragm of backlight module in the embodiment of the present invention two；
Figure 10 is the fixed schematic diagram of diaphragm of backlight module in the embodiment of the present invention three；
Figure 11 is the fixed schematic diagram of diaphragm of backlight module in the embodiment of the present invention four；
Figure 12 is liquid crystal display schematic diagram one in the embodiment of the present invention five；
Figure 13 is liquid crystal display schematic diagram two in the embodiment of the present invention five.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
Embodiment one:
Fig. 3 is the fixed schematic diagram of diaphragm of backlight module in the embodiment of the present invention one；Fig. 4 a is in the embodiment of the present invention one
The Section A-A schematic diagram of backlight module；Fig. 5 is the C-C schematic cross-section of backlight module in the embodiment of the present invention one；Fig. 6 is this
The section B-B schematic diagram of backlight module in inventive embodiments one.As shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, in the embodiment of the present invention one
A kind of backlight module 200, including fixed frame 70 and optical diaphragm group 60 are provided.
Backlight module 200 can be applied in liquid crystal display in the present embodiment one, carry on the back specifically, liquid crystal display panel is arranged
In optical mode group 200, and backlight module 200 and liquid crystal display panel are fitted together by composition liquid crystal display by fixed device,
Backlight module 200 provides backlight for liquid crystal display.
Wherein, fixed frame 70 includes side wall 702 and the support arm 701 along the extension of 702 vertical direction of side wall, on support arm 701
Diaphragm fixed part is provided on surface.Specifically, diaphragm fixed part includes diaphragm hangers fixed column 7011.Preferably, in support arm
It is provided with surface of subsidence 7012 on 701 upper surfaces, diaphragm hangers fixed column 7011 is provided on surface of subsidence 7012.
Optical diaphragm group 60 includes BEF 601 (microspur polycrystalline structure brightness enhancement film, abbreviation brightness enhancement film, or be prismatic lens)
With the first optical diaphragm 602, wherein the first optical diaphragm 602 is set to brightness enhancement film 601 close to 70 side of fixed frame and is adjacent to
Brightness enhancement film 601.First optical diaphragm 602 can with one or more layers optical diaphragm, such as: expanded film optical diaphragm.
It can also be provided with the second optical diaphragm 603 in brightness enhancement film 601, and also set under the first optical diaphragm 602
It is equipped with third optical diaphragm 604.Wherein, the first optical diaphragm 602 and the second optical diaphragm 603 and third optical diaphragm 604,
Such as: one or more combination in diffusion barrier, reflectance coating, micro- permeable membrane and composite membrane optical diaphragm.
Wherein, brightness enhancement film 601, the first optical diaphragm 602 and the second optical diaphragm 603 and third optical diaphragm 604 are distinguished
It can be one or more layers optical film combination.It should be noted that field technical staff sets according to optics in the present embodiment one
Meter demand, optical diaphragm group 60 select specific optical film combination, typically at least include two layers of optical diaphragm, one layer of brightness enhancement film
601 and one layer of first optical diaphragm 602.
Brightness enhancement film 601, the first optical diaphragm 602, the second optical diaphragm 603 and third optics in optical diaphragm group 60
Diaphragm 604 is provided with diaphragm edge protruding portion 6001, by cooperating between diaphragm edge protruding portion 6001 and diaphragm fixed part
Optical diaphragm is fixed, wherein brightness enhancement film 601 includes diaphragm edge protruding portion 6011, and the first optical diaphragm 602 includes diaphragm side
Edge protruding portion 6021, the second optical diaphragm 603 includes diaphragm edge protruding portion 6031 and third optical diaphragm 604 includes diaphragm
Peripheral ledge 6041.Specifically, being provided with the extension cooperated with diaphragm hangers fixed column 7011 on diaphragm edge protruding portion 6001
Ear through-hole.Optical diaphragm group 60 is fixed on fixed frame 70 by diaphragm edge protruding portion 6001 and the cooperation of diaphragm fixed part.
The backlight module 200 further includes and other optical modules, such as: setting on LED light source setting backboard and on backboard
It sets reflector plate etc. and forms other optical modules, such as: other optical modules include light guide plate or diffuser plate.Those skilled in the art can
Know, position difference is arranged according to light source, backlight module is divided into down straight aphototropism mode set and side entrance back module, wherein works as light
It is side entrance back module that source, which is arranged on backboard side, other optical modules include light guide plate 80, when light source is arranged in backboard
It is down straight aphototropism mode set when bottom, other optical modules include diffuser plate.In the present embodiment, specifically not to other optical modules
The present invention itself is constituted to limit.
Further, as shown in figure 4, the film of the diaphragm edge protruding portion 6011 of brightness enhancement film 601 and the first optical diaphragm 602
Piece peripheral ledge 6021 respectively includes not overlapping each other part.Wherein, the diaphragm side that part is brightness enhancement film 601 is not overlapped each other
6011 projected area of edge protruding portion is not exclusively fallen into the diaphragm edge protruding portion 6021 of the first optical diaphragm 602, and the first light
6021 projected area of diaphragm edge protruding portion for learning diaphragm 602 not exclusively falls into the diaphragm edge protruding portion 6011 of brightness enhancement film 601
It is interior.
In the present embodiment one, on the one hand, as shown in figure 4, on the diaphragm edge protruding portion 6021 of the first optical diaphragm 602
Including the lap 60211 not with the diaphragm edge protruding portion 6011 of brightness enhancement film 601, since no increment film 601 expands light
Therefore abduction not will cause the scaling problem in dark area, can reduce shadow area to the greatest extent；On the other hand, such as Fig. 6 institute
Show, including the not diaphragm edge protruding portion with the first optical diaphragm 602 on the diaphragm edge protruding portion 6011 of brightness enhancement film 601
6021 lap 60111, and the first optics is additionally provided between brightness enhancement film 601 and 701 upper surface of support arm of fixed frame 70
Diaphragm 602, in this way, the diaphragm edge protruding portion of the diaphragm edge protruding portion 6011 of increment film 601 and the first optical diaphragm 602
There can be certain interval between 6021 non-overlap part 60111 and the support arm 701 of fixed frame 70, close to 701 outer profile of support arm
A part of light A in edge can enter in gap, so that light is enhanced in the region of non-overlap part 60111, therefore, even if
The region of non-overlap part 60111 will receive the extension of brightness enhancement film 601, and still, dark space is able to brightness reinforcement in the region, will not shape
At the shadow problem in big region.For compared with the prior art, as shown in figure 8, in the prior art due to the diaphragm side of brightness enhancement film 601
Edge protruding portion is consistent with the diaphragm edge protruding portion shape of the first optical diaphragm 602, basic to keep all overlappings together, in this way,
Diaphragm edge protruding portion is bonded together completely with 70 support arm 701 of fixed frame, is formed light dark space, is then extended through brightness enhancement film 601
Effect is it is easier that dark space is extended to visible area, and forms display shadow problem.
Further, it is acted on to reduce brightness enhancement film 601 to the extension of 6001 light dark space of diaphragm edge protruding portion, as far as possible
The diaphragm edge protruding portion 6011 for reducing brightness enhancement film 601 is overlapping with the diaphragm edge protruding portion 6021 of the first optical diaphragm 602
Part.As shown in Figure 3 and Figure 7, the diaphragm edge of the diaphragm edge protruding portion 6011 of brightness enhancement film 601 and the first optical diaphragm 602
Protruding portion 6021 is not overlapped, when optical diaphragm group 60 further includes the second optical diaphragm 603 or third optical diaphragm 604, the
The diaphragm edge protruding portion 6001 or third of the diaphragm edge protruding portion 6021 of one optical diaphragm 602 and the second optical diaphragm 603
The form and dimension of the diaphragm edge protruding portion 6001 of optical diaphragm 604 is identical.
Further, notch 60112, the face of the notch 60112 are formed on the diaphragm edge protruding portion 6011 of increment film 601
Product is greater than or equal to the diaphragm edge protruding portion 6021 of the first optical diaphragm, so as to the diaphragm edge protruding portion of the first optical diaphragm
6021 in notch 60112.In this way, the diaphragm edge of the diaphragm edge protruding portion of brightness enhancement film 601 and the first optical diaphragm 602 is prominent
Lap is not present in portion out, is acted on reducing brightness enhancement film 601 to the extension of 6001 light dark space of diaphragm edge protruding portion.
Notch 60112 is formed on 6011 peripheral ledge 6011 of increment film, is not matched with diaphragm hangers fixed column 7011
Fixed hanging hole is closed, further reducing brightness enhancement film 601 and extending on dark space influences.But in order to reduce brightness enhancement film 601 and fix
It relatively moves between frame 70 and brings and worn between other optical modules, be additionally provided with adhesive tape 50, adhesive tape 50
One end is pasted above the diaphragm edge protruding portion 6001 of optical diaphragm group 60, and second end is pasted on upper fixed frame 70, in this way, by
It is exposed to except the diaphragm edge protruding portion 6021 of the first optical diaphragm in the diaphragm edge protruding portion 6011 of brightness enhancement film 601, thoroughly
The first end of gelatin band 50 can be pasted with the diaphragm edge protruding portion 6011 of brightness enhancement film 601 fixes, and second end and fixed frame 70 are viscous
Patch is fixed, so that relatively fixed between brightness enhancement film 601 and fixed frame 70.
Embodiment two:
As shown in figure 9, what is different from the first embodiment is that the diaphragm edge protruding portion 6031, first of the second optical diaphragm 603
The diaphragm edge protruding portion 6021 of optical diaphragm 602, the diaphragm edge protruding portion 6011 of brightness enhancement film 601 and third optical diaphragm
604 diaphragm edge protruding portion 6041 sequentially forms interlaced staggered floor construction.Wherein, the diaphragm edge of increment film 601 is prominent
Portion 6011 is identical as 6031 shapes and sizes of diaphragm edge protruding portion of the second optical diaphragm 603 out and the first optical diaphragm
602 diaphragm edge protruding portion 6021 is identical as 6041 shapes and sizes of diaphragm edge protruding portion of third optical diaphragm 604.
Further, the diaphragm edge that the diaphragm edge protruding portion 6011 of increment film 601 is greater than the first optical diaphragm 602 is dashed forward
6021 area of portion out.
On the one hand, the part not covered by the diaphragm edge protruding portion of brightness enhancement film 601 on diaphragm edge protruding portion, dark space
It will not be extended by brightness enhancement film 601, dark space area can be reduced to the greatest extent, it is on the other hand, prominent in the diaphragm edge of the second optical diaphragm 603
Form gap between portion 6031 and the diaphragm edge protruding portion 6011 of brightness enhancement film 601 out so that 701 attachment light of support arm can be with
It is added in dark space from gap, reduces the light dark space degree due to 601 overlay area of brightness enhancement film, it is dark to prevent from forming large area
Area and cause display shadow problem.
In the present embodiment two, the second optical diaphragm 603 and third optical diaphragm 604 can need to carry out according to specific optics
Setting, can be not provided with the second optical diaphragm 603 and third optical diaphragm 604, wherein brightness enhancement film in some other embodiment
601 and first position between optical diaphragm 602 and size it is constant.
Embodiment three:
As shown in Figure 10, identical with embodiment two to be, the diaphragm edge protruding portion 6031 of the second optical diaphragm 603,
The diaphragm edge protruding portion 6021 of one optical diaphragm 602, the diaphragm edge protruding portion 6011 of brightness enhancement film 601 and third optical diaphragm
604 diaphragm edge protruding portion 6041 sequentially forms interlaced staggered floor construction.Wherein, the diaphragm edge of increment film 601 is prominent
Portion 6011 is identical as 6031 shapes and sizes of diaphragm edge protruding portion of the second optical diaphragm 603 out and the first optical diaphragm
602 diaphragm edge protruding portion 6021 is identical as 6041 shapes and sizes of diaphragm edge protruding portion of third optical diaphragm 604.
Unlike embodiment two, the diaphragm edge protruding portion 6011 of increment film 601 is less than the first optical diaphragm 602
6021 area of diaphragm edge protruding portion.
On the one hand, the part not covered by the diaphragm edge protruding portion of brightness enhancement film 601 on diaphragm edge protruding portion, dark space
It will not be extended by brightness enhancement film 601, dark space area can be reduced to the greatest extent, it is on the other hand, prominent in the diaphragm edge of the second optical diaphragm 603
Form gap between portion 6031 and the diaphragm edge protruding portion 6011 of brightness enhancement film 601 out so that 701 attachment light of support arm can be with
It is added in dark space from gap, reduces the light dark space degree due to 601 overlay area of brightness enhancement film, it is dark to prevent from forming large area
Area and cause display shadow problem.
In the present embodiment three, the second optical diaphragm 603 and third optical diaphragm 604 can need to carry out according to specific optics
Setting, can be not provided with the second optical diaphragm 603 and third optical diaphragm 604, wherein brightness enhancement film in some other embodiment
601 and first position between optical diaphragm 602 and size it is constant.
Example IV:
As shown in figure 11, what is different from the first embodiment is that the diaphragm edge protruding portion 6031 of the second optical diaphragm 603,
The diaphragm edge protruding portion 6021 of one optical diaphragm 602, the diaphragm edge protruding portion 6011 of brightness enhancement film 601 are in successively to extend out staggered floor
Structure, and do not overlap each other.
Further, optical diaphragm group further includes third optical diaphragm 604, wherein the diaphragm side of the second optical diaphragm 603
The diaphragm edge protruding portion of edge protruding portion 6031, the diaphragm edge protruding portion 6021 of the first optical diaphragm 602 and brightness enhancement film 601
6011 projection is each fallen in the diaphragm edge protruding portion 6041 of third optical diaphragm 604.
On the one hand, not by 601 covering part of brightness enhancement film on diaphragm edge protruding portion, dark space will not be expanded by brightness enhancement film 601
Exhibition, can reduce dark space area to the greatest extent, on the other hand, in the diaphragm edge protruding portion 6031 and brightness enhancement film of the second optical diaphragm 603
Gap is formed between 601 diaphragm edge protruding portion 6011, so as to which in 701 attachment light of support arm dark space can be added to from gap
It is interior, the light dark space degree due to 601 overlay area of brightness enhancement film is reduced, display shadow is caused to prevent from being formed large area dark space
Problem.
Embodiment five:
The present embodiment five provides a kind of liquid crystal display, as shown in Figure 12 and Figure 13, including backlight mould in embodiment one
Group and liquid crystal display panel 90, liquid crystal display panel 90 are located at backlight module upper surface, wherein backlight module provides for liquid crystal display
Light source.
It further include backlight module in embodiment two, three, four in some other embodiment, in liquid crystal display, herein
It repeats no more.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of backlight module characterized by comprising
Fixed frame is provided with film on the support arm upper surface including side wall and the support arm extended along the side wall vertical direction
Piece fixed part；
Optical diaphragm group, including brightness enhancement film and the first optical diaphragm, it is close that first optical diaphragm is set to the brightness enhancement film
The fixed frame side and it is adjacent to the brightness enhancement film, wherein the brightness enhancement film and described first in the optical diaphragm group
Optical diaphragm is provided with diaphragm edge protruding portion, the brightness enhancement film in the optical diaphragm group and first optical diaphragm
It is fixed on fixed frame by the diaphragm edge protruding portion and diaphragm fixed part cooperation；
Wherein, it is wrapped respectively on the diaphragm edge protruding portion of the brightness enhancement film and the diaphragm edge protruding portion of first optical diaphragm
It includes and does not overlap each other part, the diaphragm edge protruding portion of the diaphragm edge protruding portion of the brightness enhancement film and first optical diaphragm
Not lap and the fixed frame support arm between there are certain gap, close to a part of light in support arm outer profile edge
It can enter in the gap, so that the diaphragm edge protruding portion of the diaphragm edge protruding portion of brightness enhancement film and first optical diaphragm
Not lap region in light be enhanced.
2. backlight module according to claim 1, which is characterized in that the diaphragm edge protruding portion of the brightness enhancement film and described the
The non-overlapping part of diaphragm edge protruding portion of one optical diaphragm.
3. backlight module according to claim 2, which is characterized in that formed on the diaphragm edge protruding portion of the brightness enhancement film
Notch, the area of the notch are greater than or equal to the area of the diaphragm edge protruding portion of first optical diaphragm.
4. backlight module according to claim 2, which is characterized in that the second optical diaphragm is provided in the brightness enhancement film,
And third optical diaphragm is additionally provided under first optical diaphragm, the diaphragm edge protruding portion of second optical diaphragm
Diaphragm edge with the form and dimension of the diaphragm edge protruding portion of the third optical diaphragm with first optical diaphragm
The form and dimension of protruding portion is identical.
5. backlight module according to claim 1, which is characterized in that the optical diaphragm group further include the second optical diaphragm and
Third optical diaphragm, and the diaphragm edge of the diaphragm edge protruding portion of second optical diaphragm, first optical diaphragm is prominent
The diaphragm edge protruding portion in portion, the diaphragm edge protruding portion of the brightness enhancement film and the third optical diaphragm sequentially forms mutually out
Staggered staggered floor construction.
6. backlight module according to claim 5, which is characterized in that the area of the diaphragm edge protruding portion of the brightness enhancement film
Greater than the area of the diaphragm edge protruding portion of first optical diaphragm.
7. backlight module according to claim 5, which is characterized in that the area of the diaphragm edge protruding portion of the brightness enhancement film
Less than the area of the diaphragm edge protruding portion of first optical diaphragm.
8. backlight module described according to claim 6 or 7, which is characterized in that second optical diaphragm is arranged in the blast
The top of first optical diaphragm is arranged in the lower section of film and the third optical diaphragm；
Wherein, the shape of the diaphragm edge protruding portion of the diaphragm edge protruding portion of the brightness enhancement film and second optical diaphragm
The diaphragm edge protruding portion of identical with size and described first optical diaphragm and the diaphragm edge of the third optical diaphragm are prominent
The shapes and sizes in portion are identical out.
9. backlight module according to claim 1, which is characterized in that the optical diaphragm group further includes the second optical diaphragm,
The lower section of the brightness enhancement film is arranged in second optical diaphragm；
The diaphragm edge protruding portion of second optical diaphragm, the diaphragm edge protruding portion of first optical diaphragm and the increasing
The diaphragm edge protruding portion of bright film is in the staggered floor construction that successively outer rim extends and does not overlap each other.
10. a kind of liquid crystal display characterized by comprising claim the 1-9 any backlight module and liquid crystal
Panel, the backlight module provide light source for liquid crystal display panel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610250299.5A CN105911751B (en) | 2016-04-21 | 2016-04-21 | Backlight module and liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610250299.5A CN105911751B (en) | 2016-04-21 | 2016-04-21 | Backlight module and liquid crystal display |
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| CN105911751A CN105911751A (en) | 2016-08-31 |
| CN105911751B true CN105911751B (en) | 2019-09-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106292032B (en) * | 2016-09-12 | 2019-09-24 | 四川长虹电器股份有限公司 | Rimless liquid crystal display module structure |
| TWI611245B (en) * | 2017-02-23 | 2018-01-11 | 友達光電股份有限公司 | Optical film, optical film assembly and backlight module with lug design |
| CN108924300A (en) | 2018-07-03 | 2018-11-30 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN109581577A (en) * | 2019-01-03 | 2019-04-05 | Oppo（重庆）智能科技有限公司 | Display screen component and electronic device with it |
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| JP2003255309A (en) * | 2002-03-04 | 2003-09-10 | Nec Lcd Technologies Ltd | Optical unit and liquid crystal display using the same |
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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Visual Technology Co., Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |
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