CN107942557A - Liquid crystal display device and its backlight module - Google Patents
Liquid crystal display device and its backlight module Download PDFInfo
- Publication number
- CN107942557A CN107942557A CN201710945735.5A CN201710945735A CN107942557A CN 107942557 A CN107942557 A CN 107942557A CN 201710945735 A CN201710945735 A CN 201710945735A CN 107942557 A CN107942557 A CN 107942557A
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- China
- Prior art keywords
- backlight module
- optical diaphragm
- liquid crystal
- crystal display
- display device
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Classifications
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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
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
Abstract
The application proposes a kind of liquid crystal display device and its backlight module.The back frame module includes a backboard and an at least optical diaphragm.Backboard has an at least support component, and there is the support component support shaft to be constructed with multiple fins, and the multiple fin construction is the outside that connection and ring are located at the support shaft.Optical diaphragm is with least one perforation.Support component is to wear the perforation of optical diaphragm, and a madial wall perforated and fin structural contact.So as to which the waviness phenomena occurred caused by stress concentration and/or rising-heat contracting-cold on optical diaphragm can be reduced.
Description
Technical field
The application is reduced caused by stress concentration on a kind of liquid crystal display device and its backlight module especially in regard to one kind
Ripple produce liquid crystal display device and its backlight module.
Background technology
LCD device by what have Wai Xing Light are thin, consumption Electricity amounts less and the characteristics such as low radiation is polluted, because of the general Should whats of Ci Wide
, And substitutions Pass System Overcast Very penetrate Line pipes Shang Number Shou Machine, Pen note Xing Electricity Brain, Ge people Zhu Li With slimming plane Electricity Visual Deng Capital News Productivity product
(cathode ray tube, CRT) display show device, and into As, mainstream display shows device on the market.
In general, liquid crystal display includes a liquid crystal display panel and a backlight module, wherein backlight module carries
Plural optical diaphragm is simultaneously abutted with liquid crystal display panel, and as a complete liquid crystal display.In U.S. Patent Bulletin number
US7, in 125,157 specifications, discloses a kind of liquid crystal display, multiple optical diaphragms in backlight module be arranged on backboard with
In the accommodating space that housing is collectively forming.In being provided with positioning column on backboard, and multiple optical diaphragms are in place of corresponding positioning column,
Then offer positioning hole.In installing, positioning column can pass through the positioning hole of all optical diaphragms, thereby, multiple optical films
Piece is positioned on backboard.Meanwhile gap is reserved between positioning column and the positioning hole of optical diaphragm, can be as light
Learn diaphragm and cushion space required during rising-heat contracting-cold occurs.Although such a design, which can also consolidate optical diaphragm, is arranged on backboard
On, while the cushion space for also having reserved rising-heat contracting-cold has reduced the generation of moire effect, but still need and set on backboard
Extra part (such as the positioning column arranged in pairs or groups mutually with positioning hole) is put, so more time-consuming in assembling, it is also desirable to extra
Contraposition step.
The content of the invention
In view of the deficiency of prior art, inventor obtains the application after research and development.The purpose of the application is a kind of liquid of offer
Crystal device and its backlight module, can reduce the caused waviness phenomena on optical diaphragm.
The application proposes a kind of backlight module, including a backboard and an at least optical diaphragm.Backboard is with least one support
There is a support shaft to be constructed with multiple fins for component, the support component, and the multiple fin construction is connection and ring is located at
The outside of the support shaft.Optical diaphragm is with least one perforation.Wherein, support component is to wear the perforation of optical diaphragm, and
The madial wall of perforation and fin structural contact.
The application is it is also proposed that a kind of liquid crystal display device, including a housing, and a backlight module.Backlight module is arranged at
The housing.Backlight module includes a backboard and an at least optical diaphragm.Backboard has an at least support component, the support
There is component a support shaft to be constructed with multiple fins, and the multiple fin construction is connection and ring is located at the outer of the support shaft
Portion.Optical diaphragm is with least one perforation.Wherein, support component is to wear the perforation of optical diaphragm, and the madial wall perforated is only
With fin structural contact.
In one embodiment, the backboard has multiple support components, and the optical diaphragm is with multiple right
Should be in the perforation of the multiple support component, wherein the on line of the central point of the two of which perforation of the multiple perforation is to pass through
The central point of the optical diaphragm.
In one embodiment, the quantity of the multiple fin construction is 3,4,5 or 6.
In one embodiment, the material of the multiple fin construction is the group formed selected from sponge, silica gel and soft rubber
Group.
In one embodiment, the multiple optical diaphragm is selected from by diffusion sheet, rhombus lens, blast piece, and reflective increasing
The group that paillette is formed.
In conclusion in the liquid crystal display device and its backlight module of the application, when the optical diaphragm of backlight module occurs
During the situation of thermal expansion, its madial wall at most only can be expressed to soft fin without directly contacting harder support shaft, by
This makes optical diaphragm to produce the warpage in too big deformation or plane, to reduce ripple trace as buffering spatially
Generation.
Brief description of the drawings
Included attached drawing is used for providing being further understood from the embodiment of the present application, which constitutes one of specification
Point, for illustrating presently filed embodiment, and the principle for the explaination the application that comes together with word description.Under it should be evident that
Attached drawing in the description of face is only some embodiments of the present application, for those of ordinary skill in the art, is not paying wound
On the premise of the property made is laborious, other attached drawings can also be obtained according to these attached drawings.In the accompanying drawings：
Figure 1A is a kind of schematic diagram of backlight module of the first embodiment of the application.
Figure 1B is the exploded perspective view of the backlight module of first embodiment.
Fig. 1 C and Fig. 1 D are respectively diagrammatic cross-section of the backlight module of first embodiment along AA lines and BB lines.
Fig. 1 E are the schematic diagram of the backlight module middle frame of first embodiment.
Fig. 2A is the decomposition diagram of the backlight module of second embodiment.
Fig. 2 B are the decomposition diagram of the backlight module of 3rd embodiment.
Fig. 3 is a kind of exploded perspective view of liquid crystal display device of the fourth embodiment of the application.
Fig. 4 A and Fig. 4 B are a kind of schematic diagram of liquid crystal display device of the 5th embodiment of the application.
Fig. 4 C are the exploded perspective view of the liquid crystal display device of the 5th embodiment.
Fig. 4 D are the diagrammatic cross-section along AA lines of the liquid crystal display device of the 5th embodiment.
Fig. 4 E to Fig. 4 G are respectively the schematic diagram of the support shaft of different aspects.
Fig. 5 A are a kind of schematic diagram of liquid crystal display device of the sixth embodiment of the application.
Fig. 5 B are the diagrammatic cross-section along BB lines of the liquid crystal display device of sixth embodiment.
Fig. 6 A are a kind of schematic diagram of liquid crystal display device of the 7th embodiment of the application.
Fig. 6 B are the exploded perspective view of the liquid crystal display device of the 7th embodiment.
Fig. 6 C are the middle back frame of liquid crystal display device and the assembling schematic diagram of luminescence unit of the 7th embodiment.
Fig. 6 D are the enlarged schematic partial view of the liquid crystal display device of the 7th embodiment.
Fig. 7 A are a kind of schematic diagram of liquid crystal display device of the 8th embodiment of the application.
Fig. 7 B are the enlarged schematic partial view of the liquid crystal display device of the 8th embodiment.
Embodiment
Concrete structure and function detail disclosed herein are only representational, and are for describing showing for the application
The purpose of example property embodiment.But the application can be implemented by many alternative forms, and it is not interpreted as
It is limited only by the embodiments set forth herein.
In the description of the present application, it is to be understood that term " " center ", " transverse direction ", " on ", " under ", "left", "right",
The orientation or position relationship of the instruction such as " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on orientation shown in the drawings or
Position relationship, is for only for ease of description the application and simplifies description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the application.In addition, art
Language " first ", " second " are only used for description purpose, and it is not intended that instruction or implying relative importance or implicit indicating institute
The quantity of the technical characteristic of instruction.Thus, " first " is defined, one can be expressed or be implicitly included to the feature of " second "
Or more this feature.In the description of the present application, unless otherwise indicated, " multiple " are meant that two or more.
In addition, term " comprising " and its any deformation, it is intended that cover non-exclusive include.
, it is necessary to illustrate in the description of the present application, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in application.
Term used herein above is not intended to limit exemplary embodiment just for the sake of description specific embodiment.Unless
Context clearly refers else, otherwise singulative used herein above "one", " one " also attempt to include plural number.Should also
When understanding, term " comprising " and/or "comprising" used herein above provide stated feature, integer, step, operation,
The presence of unit and/or component, and do not preclude the presence or addition of other one or more features, integer, step, operation, unit,
Component and/or its combination.
Hereinafter with reference to correlative type, illustrate the liquid crystal display device and its backlight module according to the application preferred embodiment,
Wherein identical element will be illustrated with identical reference marks.
First embodiment：Backlight module
Figure 1A is a kind of schematic diagram of an embodiment of backlight module 20 of the application.In the present first embodiment, backlight
Rectangle is substantially presented in module 20, but the application is not limited thereto.And symbol " X-Y-Z " is to represent the place of backlight module 20 in figure
The rectangular coordinate system of environment.As shown in FIG., the dominant plane system of backlight module 20 is located at it in rectangular coordinate system X-Y-Z
On plane XY, the short side of 20 plane of backlight module is parallel to X-direction, its long side is parallel to Y-direction；Z-direction is then perpendicular to plane
XY, the thickness direction (or short transverse) of backlight module 20 is then parallel to Z-direction.
It please also refer to Figure 1A, 1B and 1E.Backlight module 20 includes frame 21 and multiple optical diaphragms 22.Frame 21 has
The first half frameworks 211 and the second half frameworks 212.The first half frameworks 211 are collectively formed with the second half frameworks 212 and (could also say that
Cross) accommodating space S.As shown in the figure, the first half frameworks 211 with the second half frameworks 212 are split in z-direction with frame 21.
As shown in Figure 1B, have on the first half frameworks 211 and the second half each comfortable X/Y planes of framework 212 by two long sides and two
The rectangular configuration that short side is surrounded.As referring to figure 1E, the first half frameworks 211 have a first connecting portion 214 in z-direction, and second
Half framework 212 then has second connecting portion 215 in z-direction；In the present embodiment, first connecting portion 214 can be it is continuous or
Discontinuous prominent configuration, and second connecting portion 215 is then with the chase structure that can be worked in coordination with first connecting portion 214
Type, and chimeric each other with second connecting portion 215 by first connecting portion 214, the first half frameworks 211 and the second half frameworks 212 are then
It is combined into frame 21.In addition, in other embodiment aspects, first connecting portion 214 can also be chase configuration, second connecting portion
215 can correspond to prominent configuration.However, first connecting portion 214 and second connecting portion 215 are not restricted in this application
Foregoing configuration species, is fitted together to each other as long as both can be mutual collocation.
In addition, although above-mentioned the first half framework 211 and the second half frameworks 212 are by first connecting portion 214 and second
Connecting portion 215 is fitted together to be combined with each other into frame 21 each other, but this is used only to for example, the application is not limited thereto.
In other embodiment aspects, the first half frameworks 211 and the second half frameworks 212 can also directly with it is glued, be bonded or bind
Mode, to form frame 21.
With reference to Fig. 1 C and Fig. 1 D, Fig. 1 C it is again please diagrammatic cross-section of the back frame module 20 of Figure 1A along AA lines, and
Fig. 1 D are then diagrammatic cross-section of the back frame module 20 of Figure 1A along BB lines.As shown in FIG., multiple optical diaphragms 22 are sandwicheds
In the accommodating space S of frame 21.In the present embodiment, carried out exemplified by with four optical diaphragms 221,222,223,224
Illustrate, but the application is not limited thereto.And four optical diaphragms 221,222,223,224 can be each independent selection from
Diffusion sheet, rhombus lens, blast piece, and the group that dual brightness enhancement piece is formed.In other embodiment aspects, optical diaphragm 22
Species and quantity can be all adjusted according to actual demand, present application is not any limitation as.
As shown in FIG., section of the frame 21 in Z-direction (that is, normal direction of its main place plane X/Y plane),
A C-shaped configuration is substantially presented, by two extension sections parallel to X/Y plane in C-shaped configuration, by four optical diaphragms 221,
222nd, 223,224 it is limited in z-direction in accommodating space S；In addition, by the connecting portion in C-shaped configuration parallel to Z-direction
(connecting portion connects two extension sections parallel to X/Y plane in above-mentioned C-shaped configuration), by four optical diaphragms
221st, 222,223,224 it is limited in X-direction and Y-direction in accommodating space S.But four optical diaphragms 221,222,223,
224 with least two madial walls of frame 21 (in C-shaped configuration parallel to Z-direction connecting portion towards accommodating space S that
Face), it is not directly contacted with；That is, four optical diaphragms 221,222,223,224 on X/Y plane with frame 21 at least two
There can be gap between a madial wall.Consequently, it is possible to when the optical diaphragm 221,222,223,224 in backlight module 20 occurs
During the situation of thermal expansion, it will not directly be subject to the extruding of 21 madial wall of frame and be deformed or occur what stress was too concentrated
Phenomenon, can reduce the moire effect therefore produced.And in the present embodiment, as shown in FIG., four optical diaphragms 221,
222nd, 223,224 whether all it is not directly contacted with X-direction and Y-direction with the connecting portion in C-shaped configuration parallel to Z-direction；
That is, four optical diaphragms 221,222,223,224 between the madial wall of X-direction and frame 21 have clearance G 1 and
Clearance G 2, and there is clearance G 3 and clearance G 4 between the madial wall of frame 21 in the Y direction.In this case, when backlight mould
After block 20 erects, make X/Y plane parallel to gravity direction, be folded at this time optical diaphragm 221 among frame 21,
222nd, 223,224 are influenced be subject to gravity, can contact at least one to two madial walls of frame 21, but because of size design
Relation, the madial wall of still at least two frames 21 will not directly be contacted with optical diaphragm 221,222,223,224.Such one
Come, even if backlight module 20 be upright and its dominant plane parallel to gravity direction when, the optical film in backlight module 20
Piece 221,222,223,224 also will not directly be subject to the extruding of 21 madial wall of frame and be deformed there is a situation where thermal expansion
Or there is a phenomenon where stress is too concentrated, it can thereby reduce the moire effect therefore produced.Although this first embodiment
In be between optical diaphragm 221,222,223,224 and the madial wall of frame 21 have four gaps exemplified by be illustrated, but
It is in other embodiment aspects, the quantity in gap can be also adjusted according to actual needs, and the application is not any limitation as.
In addition, as shown in Figure 1A, in order to which back frame module 20 to be facilitated is in the assembling of liquid crystal display, in its of frame 21
In at least one ear 213 can be further provided with a side, and ear 213 has at least one perforation 2131.
In the present embodiment, be frame 21 C-shaped configuration in parallel on outer surface of the connecting portion relative to accommodating space S of Z-direction
Liang Ge ears 213 are provided with, the two ears 213 are respectively then on two short sides of the first half frameworks 211.It is however, foregoing
The setting position of ear 213 is then merely illustrative of with quantity, in other embodiment aspects, can also be adjusted according to actual needs
Setting position that is whole and changing ear 213 and quantity, the application are not any limitation as.
Second embodiment：Backlight module
A is please referred to Fig.2, Fig. 2A is a kind of schematic diagram of an embodiment of backlight module 20a of the application.The present embodiment
Backlight module 20a is substantially identical with backlight module 20, and includes frame 21a and multiple optical diaphragms 22.Frame 21a has
The first half framework 211a and the second half framework 212a.The first half framework 211a and the second half framework 212a are collectively formed (can also
Say it is to cross) accommodating space S, multiple optical diaphragms 22 are folded in the accommodating space S of frame 21a, and multiple optical diaphragms
22 with least two madial walls of frame 21a (in C-shaped configuration parallel to Z-direction connecting portion towards accommodating space S that
Face) it is not directly contacted with, at least one ear 213a (this can be also further provided with one of side of frame 21a
Embodiment is by exemplified by an ear 213a is each provided with the short side of the first half framework 211a and the second half framework 212a).
Both differences, which are in the first half frameworks 211 in, first embodiment with the second half frameworks 212, is torn open in z-direction with frame 21
Point；And in this second embodiment, the first half framework 211a with the second half framework 212a are split in the Y direction with frame 21a.
That is, in this second embodiment, the long side of frame 21a (parallel to Y-direction) be by the first half framework 211a in the Y direction
On extension section combine composition with the second half extension sections of framework 212a in the Y direction.And the first half framework 211a are in the Y direction
Extension section there is first connecting portion 214a, the second half framework 212a then then have second on the extension section in corresponding Y-direction
Connecting portion 215a, and chimeric each other with second connecting portion 215a by first connecting portion 214a, the first half framework 211a and second
Half framework 212a is then combined into frame 21a.
In addition, the backlight module 20a of the present embodiment is except the above-mentioned difference with described in the backlight module of first embodiment 20
Outside corresponding change, concrete composition, variable condition and the connection relation of other components of remaining each component, then be same as above real
Apply described in example, repeated no more in this.
3rd embodiment：Backlight module
B is please referred to Fig.2, Fig. 2 B are a kind of schematic diagram of an embodiment of backlight module 20b of the application.The present embodiment
Backlight module 20b is substantially identical with backlight module 20, and includes frame 21b and multiple optical diaphragms 22.Frame 21b has
The first half framework 211b and the second half framework 212b.The first half framework 211b and the second half framework 212b are collectively formed (can also
Say it is to cross) accommodating space S, multiple optical diaphragms 22 are folded in the accommodating space S of frame 21b, and multiple optical diaphragms
22 with least two madial walls of frame 21b (in C-shaped configuration parallel to Z-direction connecting portion towards accommodating space S that
Face) it is not directly contacted with, at least one ear 213b (this can be also further provided with one of side of frame 21b
Embodiment is by exemplified by an ear 213b is each provided with two sides parallel to X-direction of the first half framework 211b).
Both differences, which are in the first half frameworks 211 in, first embodiment with the second half frameworks 212, is torn open in z-direction with frame 21
Point；And in this third embodiment, the first half framework 211b with the second half framework 212b are torn open in the X direction with frame 21a
Point.That is, in this third embodiment, the short side of frame 21b is by the first half framework 211b in X (parallel to X-direction)
Extension section on direction combine composition with the second half extension sections of framework 212b in the X direction.And the first half framework 211b are in X side
Upward extension section has a first connecting portion 214b, and the second half framework 212b then then have on the extension section in corresponding X-direction
Second connecting portion 215b, and chimeric each other with second connecting portion 215b by first connecting portion 214b, the first half framework 211b with
The second half framework 212b are then combined into frame 21b.
In addition, the backlight module 20b of the present embodiment is except the above-mentioned difference with described in the backlight module of first embodiment 20
Outside corresponding change, concrete composition, variable condition and the connection relation of other components of remaining each component, then be same as above real
Apply described in example, repeated no more in this.
Fourth embodiment：Liquid crystal display device
Fig. 3 is a kind of schematic diagram of liquid crystal display device 2 of the application.Liquid crystal display device 2 includes backboard 24 and the back of the body
Optical module 20, backlight module 20 are provided on backboard 24.The liquid crystal display device 2 of the present embodiment be with side-light type light source, and
Illuminating source is illustrated by taking light emitting diode as an example.But in other embodiment aspects, the liquid crystal display of the application
Device can also use directly-down light source, and illuminating source can also use cold cathode ray tube (CCFL), and the application is not
It is any limitation as.As shown in the figure, it is each provided with a light source die on the surrounding madial wall (XZ planes and YZ planes) of backboard 24
Block 25.Light source module 25 includes multiple light sources 251 and carries the substrate 252 of multiple light sources 251.As it was previously stated, here
Light source 251 is light emitting diode.And between backlight module 20 and backboard 24, it is further provided with light guide plate 23, such one
Come, the form that the point light source of light source 251 can become area source (XY planes) by the guiding of light guide plate 23 is sent out to Z-direction
Go out, the back light as 2 display of liquid crystal display device.And draw and include for simplified form, in the present embodiment
There are the Liquid Crystal Module of control circuit and the outer frame part of liquid crystal display device, but the art has the skill of usual knowledge
Art personnel all will be appreciated that foregoing Liquid Crystal Module be it is overlapped on the upper strata of backlight module 20 in Z side, and outer frame part (or
Housing) it is then to frame Liquid Crystal Module, backlight module 20 and light guide plate 23 jointly with backboard 24.
This fourth embodiment be by taking the backlight module 20 that liquid crystal display device 2 includes described in first embodiment as an example into
Row explanation.But in other embodiment aspects, the backlight module of liquid crystal display device 2 can also be second embodiment or
Backlight module 20a, 20b described in three embodiments, the application are not intended to limit.Therefore similarly, backlight module 20 includes framed
Frame 21 and multiple optical diaphragms 22.Frame 21 has the first half frameworks 211 and the second half frameworks 212.The first half frameworks 211 with
The second half frameworks 212 collectively form and (could also say that and cross) accommodating space S, and multiple optical diaphragms 22 are folded in frame 21
In accommodating space S, and at least two madial walls of multiple optical diaphragms 22 and frame 21 are (parallel to Z-direction in C-shaped configuration
The side of the connecting portion towards accommodating space S) it is not directly contacted with.Consequently, it is possible to when the optical diaphragm 221 in backlight module 20,
222nd, 223,224 it is deformed or sends out there is a situation where during thermal expansion, will not directly be subject to the extruding of 21 madial wall of frame
The phenomenon that raw stress is too concentrated, can reduce the moire effect therefore produced.
, can be on one of side of frame 21 in addition, the positioning of frame 20 and backboard 24 is set for convenience
One step is provided with least one ear 213, and the present embodiment is with being each provided with an ear on two short sides of the first half frameworks
Exemplified by portion 213a.And each ear 213 has at least one perforation 2131.In the present embodiment, on the bottom plate 242 of backboard 24
Two pilot pins 241 are further provided with, correspond to the perforation 2131 of Liang Ge ears 213 respectively.In assembling, 241 meeting of pilot pin
Ear 213 is worn via perforation 2131, thereby, frame 21, which can position, to be arranged on backboard 24.At this time, frame 21 is by it
Ear 213 carries out positioning setting with pilot pin 241, so stress is at most only occurred between ear 213 and pilot pin 241,
And pilot pin 241 and ear 213 are being equipped with outside the accommodating space S of optical diaphragm 22 (221 to 224), between the two
Produced stress, which is also not influence optical diaphragm 22, makes its produce waviness phenomena.
In addition, concrete composition, the variable condition of remaining each component of the backlight module 20 of the present embodiment liquid crystal display device 2
With the connection relation of other components, then it is same as described in preceding embodiment, is repeated no more in this.
5th embodiment：Liquid crystal display device and backlight module
A and Fig. 4 B are please referred to Fig.4, are respectively a kind of a kind of backlight module 30 and the one of liquid crystal display device 3 of the application
The schematic diagram of embodiment.Liquid crystal display device 3 includes housing F and a backlight module 30.Backlight module 30 is arranged at housing F.
It is similar with foregoing embodiment, light source module is not drawn for simplified form, in the present embodiment and includes control electricity
The Liquid Crystal Module part on road, but there is the art the technical staff of usual knowledge all will be appreciated that light source module is to set
On backboard 34, and foregoing Liquid Crystal Module is on the upper strata of backlight module 30 overlapped, and housing F is then common with backboard 34
Frame Liquid Crystal Module, backlight module 30 and light guide plate 33.In addition, the light source kenel of the liquid crystal display device 2 of the present embodiment can be
With side-light type light source or straight-down negative, and illuminating source can be light emitting diode or cold cathode ray tube (CCFL), this
Application is not any limitation as.
Please Ginseng Kao Fig. 4A to Fig. 4 D, backlight module 30 include backboard 34 and an at least optical diaphragm.And the present embodiment is
Four optical diaphragms 321,322,323,324 Gong Tong Group are included into 32 As Li Jin of Guang Learn Mo Pian Group with backlight module 30
Row explanation.But in other Real apply state Sample, the Number amounts of light Learn diaphragms can need to ask Jin rows Tone whole according to Real Inter, this Shen Please Right this
And is not limited.Backboard 34 has an at least Ge support components.As shown in FIG., support component is provided in the bottom plate of backboard 34
On 342.Support component has support shaft P1P is constructed with multiple finsF1, described multiple fins construction PF1Be connection and ring be located at
Support shaft P1Outside.And optical diaphragm group 32 has at least one perforation 32H, and the 32H that perforates opens up position correspondence in the back of the body
The position of support component on plate 34.As shown in FIG., support component (that is, support shaft P1Its exterior multiple fin is located at ring
Construct PF1) wear the perforation 32H of optical diaphragm group 32.In addition, in the present embodiment, light guide plate 33 corresponds to the part of support component
Also perforation 33H is offered, so the support component of the present embodiment is to wear the perforation 32H and light guide plate 33 of optical diaphragm group 32
Perforation 33H.And four optical diaphragms 321,322,323,324 can be each independent selection self-diffusion piece, rhombus lens, increasing
Paillette, and the group that dual brightness enhancement piece is formed.In other embodiment aspects, the species and quantity of optical diaphragm 32 can be with
It is adjusted according to actual demand, the application is not any limitation as.
Please also refer to Fig. 4 A and Fig. 4 D, Fig. 4 D is diagrammatic cross-section of the liquid crystal display device of Fig. 4 A along AA lines.Such as figure
Shown in, the madial wall of the perforation 32H of optical diaphragm group 32 only constructs P with finF1Contact.That is, optical diaphragm group 32
Perforation 32H madial wall it is not direct with support shaft P1Contact.Consequently, it is possible to when heat occurs for the optical diaphragm group 32 of backlight module
During the situation of expansion, perforation 32H can diminish, its madial wall at most can only be expressed to fin construction PF1Without directly contact compared with
Hard support shaft P1.And as fin construction PF1It is subject to when the extruding of madial wall of perforation 32H, deformation can be produced, thereby as sky
Between on buffering, optical diaphragm group 32 is produced the warpage in too big deformation or plane, to reduce the production of ripple trace
It is raw.
So in the preferred case, compared to optical diaphragm group 32 and support shaft P1, fin construction PF1Material compared with
It is soft, it is flexible higher.In this regard, fin constructs PF1Material can be sponge, silica gel or soft rubber (soft rubber, main material
Matter is polyvinyl chloride), or any combination of previous materials.
E to Fig. 4 G is please referred to Fig.4, in the present embodiment, fin construction PF1Be in a symmetrical connection and ring be located at support
Axis P1Outside, and its quantity can be 3,4,5 or 6.In other embodiment aspects, the setting type of fin construction
With setting quantity to be adjusted according to actual demand, the application is not any limitation as state.
Sixth embodiment：Liquid crystal display device and backlight module
Fig. 5 A to Fig. 5 B are refer to, are an implementation of a kind of liquid crystal display device 3a and its backlight module 30a of the application
The schematic diagram of example.The liquid crystal display device 3a and backlight module 30a of the present embodiment substantially with the liquid crystal in foregoing 5th embodiment
Display device 3 and backlight module 30 are identical.Liquid crystal display device 3a is also to include including housing and backlight module 30a.The back of the body
Optical module 30a is arranged at housing.Backlight module 30a includes backboard 34a, light guide plate 33a and optical diaphragm group 32a (includes light
Learn diaphragms 321a, 322a, 323a, 324a).In the present embodiment, for simplified form, shell is drawn in the present embodiment
Body.Support component is provided on the bottom plate 342 of backboard 34.
The places different from previous embodiment are, two branch are provided with the bottom plate 342a of the backboard 34a of the present embodiment
Support component, two support components have support shaft P respectively1、P2P is constructed with multiple finsF1、PF2.Multiple fins construction
PF1Be connection and ring be located at support shaft P1Outside.And fin construction PF2Then be connection and ring be located at support shaft P2Outside.And
Optical diaphragm group 32a has two perforation 32Ha and 32Hb, and the position correspondence that opens up for the 32Ha that perforates is supported on backboard 34a
Axis P1Position, and the 32Hb that perforates opens up position correspondence in support shaft P on backboard 34a2Position.As shown in the figure, perforation
The on line (BB on lines) of the central point of 32Ha and the 32Hb that perforates is the central point C by optical diaphragm group 32a.The present embodiment is here
Signified " central point " is institute on each comfortable liquid crystal display device 3a dominant planes of perforation 32Ha, 32Hb and optical diaphragm group 32a
The geometric center point of the two dimensional configurations of presentation.
Please also refer to Fig. 5 A and Fig. 5 B, Fig. 5 B is diagrammatic cross-section of the liquid crystal display device of Fig. 5 A along BB lines.Such as figure
Shown in, the madial wall of the perforation 32Ha and 32Hb of optical diaphragm group 32a only constructs P with fin respectivelyF1And fin construction PF2Connect
Touch.Contacted that is, the madial wall of the perforation 32Ha and 32Hb of optical diaphragm group 32a is not direct with support shaft P1, P2.Such as
This one, when even if being upright in liquid crystal display device 3a, its dominant plane is parallel to gravity direction, center of gravity would generally pass through
The central point of optical diaphragm group 32a, therefore (on line of the central point of perforation 32Ha and the 32Hb that perforates passes through using this design
The central point of optical diaphragm group 32a) liquid crystal display device 3a can more consolidate when upright, and be not easy therefore stress occur too
Excessively concentrate phenomenon somewhere.And as the optical diaphragm group 32a of backlight module, there is a situation where the 32Ha that during thermal expansion, perforates
And 32Hb can diminish, its madial wall at most can only be expressed to fin construction PF1And fin construction PF2Without directly contact compared with
Hard support shaft, P2.And as fin construction PF1And fin construction PF2It is subject to when the extruding of madial wall of perforation 32Ha and 32Hb,
Deformation can be produced, thereby as buffering spatially, optical diaphragm group 32a is produced sticking up in too big deformation or plane
Song, to reduce the generation of ripple trace.
In addition, the concrete composition of each component of remaining of the present embodiment liquid crystal display device 3a and its backlight module 30a, change
State and the connection relation of other components, then be same as described in preceding embodiment, repeated no more in this.
7th embodiment：Liquid crystal display device and backlight module
Fig. 6 A are a kind of schematic diagram of the liquid crystal display device 4 with its backlight module 40 of the application.Fig. 6 A be refer to figure
6D, wherein Fig. 6 C are to show that liquid crystal display device 4 is also not provided with the schematic diagram of optical diaphragm and light guide plate, and Fig. 6 D are display figures
The schematic diagram of the upper right corner corner portion amplification of the liquid crystal display device 4 of 6A.Liquid crystal display device 4 includes housing and a backlight
Module 40.Backlight module 40 is arranged at housing.It is similar with foregoing embodiment, for simplified form, do not have in the present embodiment
Draw housing and include the Liquid Crystal Module part of control circuit, but the art has the technical staff of usual knowledge
All it will be appreciated that foregoing Liquid Crystal Module is on the upper strata of backlight module 40 overlapped, and housing is framed jointly with backboard 44
Liquid Crystal Module, backlight module 40 and light guide plate 43.
The liquid crystal display device 4 of the present embodiment is with side-light type light source, and illuminating source is then by taking light emitting diode as an example
Illustrate.Backlight module 40 includes backboard 44, at least a light source assembly 45 and an at least optical diaphragm 42.Light source assembly
45 have an at least light source 451 and an at least substrate 452, and light source 451 is provided on substrate 452, and light source assembly 45 is to set
Put on backboard 44.As shown in the figure, it is each provided with a light on the surrounding madial wall (XZ planes and YZ planes) of backboard 44
Source component 45.Light source assembly 45 includes multiple light sources 451 and carries the substrate 452 of multiple light sources 451.As it was previously stated, this
In light source 451 be light emitting diode.And between optical diaphragm 42 and the bottom 442 of backboard 44, it is further provided with leading
Tabula rasa 43, consequently, it is possible to which the point light source of light source 451 can become area source (X/Y plane) by the guiding of light guide plate 43
Form is sent to Z-direction, the back light as 4 display of liquid crystal display device.
It is to be illustrated exemplified by with a piece of optical diaphragm 42, but the application is not limited thereto in the present embodiment.And
Optical diaphragm 42 can be diffusion sheet, rhombus lens, blast piece, or dual brightness enhancement piece.
Fig. 6 A and Fig. 6 D are please also refer to, optical diaphragm 42 has the concave configuration corresponding to light source assembly 45.Also, light
Diaphragm 42 is learned to be arranged on backboard 44 by the positioning of these concave configurations.Specifically, optical diaphragm 42 on X/Y plane four
A side, has corresponding concave configuration corresponding to each light source 451 and substrate 452；Also, optical diaphragm 42 is not
Directly contact light source assembly 45.As shown in the figure, there are clearance G 1 between optical diaphragm 42 and light source 451, itself and substrate 452 it
Between there are clearance G 2 in the X direction, and clearance G 3 is also there are between substrate 452 in the Y direction.In addition, preferable
In the case of, also there is gap between optical diaphragm 42 and an at least madial wall for backboard 44.
Designed by those above, optical diaphragm 42 can simply be positioned and is arranged in backlight module 40.And work as light
Learning diaphragm 42, there is a situation where during thermal expansion, will not directly be subject to the extruding of 44 madial wall of backboard and/or light source assembly 45.
That is, using the gap of optical diaphragm 42 and light source assembly 45 even between backboard 44 as buffering spatially, make
Optical diaphragm 42 will not also produce the warpage in too big deformation or plane when thermal expansion occurs, to reduce the production of ripple trace
It is raw.
In addition, the concrete composition of each component of remaining of the present embodiment liquid crystal display device 4 and its backlight module 40, change shape
State and the connection relation of other components, then be same as described in preceding embodiment, repeated no more in this.
8th embodiment：Liquid crystal display device and backlight module
Fig. 7 A to Fig. 7 B are refer to, Fig. 7 A are a kind of showing for liquid crystal display device 4a and its backlight module 40a of the application
It is intended to, Fig. 7 B are the schematic diagrames of the upper right corner corner portion amplification for the liquid crystal display device 4a for showing Fig. 7 A.The liquid of the present embodiment
Crystal device 4a and backlight module 40a substantially with 40 phase of liquid crystal display device 4 and backlight module in foregoing 7th embodiment
Together.Liquid crystal display device 4a is also to include including housing and backlight module 40a.Backlight module 40a is arranged at housing.With it is preceding
The embodiment stated is similar, for simplified form, does not draw housing in the present embodiment and includes the liquid crystal of control circuit
Module section.
Backlight module 40a includes backboard 44a, at least a light source assembly 45a and an at least optical diaphragm 42a.Light
Source component 45a has an an at least light source 451a and at least substrate 452a, and light source 451a is provided on substrate 452a, and light source
Component 45a is provided on backboard 44a.Optical diaphragm 42a has the concave configuration corresponding to light source assembly 45a.Also, optics
Diaphragm 42a is arranged on backboard 44a by the positioning of these concave configurations.
It is with the liquid crystal display device 4 in foregoing 7th embodiment and 40 difference of backlight module, this 8th implementation
Concave configuration on the optical diaphragm 42a of example corresponding to light source assembly 45a no longer corresponds to each light source 451a, but with light
Source component 45a is an entirety as the correspondence on configuration.In other words, originally in the seventh embodiment, optical diaphragm 42 is right
Each light source 451 is answered to have a concave configuration, but in the present embodiment, as shown in Figure 7 B, optical diaphragm 42a is in X
Concave configuration in side and the side of Y-direction, all only corresponds to whole light source assembly 45a.Such design is relatively simple, can be with
Further reduce the production process and cost of manufacture of optical diaphragm 42a.However, such design still remains and allows optical film
Piece 42a can simply position the function being arranged in backlight module 40.And as optical diaphragm 42a, there is a situation where thermal expansion
When, will not directly it be extruded be subject to backboard 44a madial walls and/or light source assembly 45a.That is, with optical diaphragm 42a with
Gaps of the light source assembly 45a even between backboard 44a makes optical diaphragm 42a swollen in generation heat as buffering spatially
Also the warpage in too big deformation or plane will not be produced when swollen, to reduce the generation of ripple trace.
In addition, the concrete composition of each component of remaining of the present embodiment liquid crystal display device 4a and its backlight module 40a, change
State and the connection relation of other components, then be same as described in preceding embodiment, repeated no more in this.
Above content is to combine the further description that specific preferred embodiment makees the application, it is impossible to is assert
The specific implementation of the application is confined to these explanations.For those of ordinary skill in the art to which this application belongs, exist
On the premise of not departing from the application design, some simple deduction or replace can also be made, should all be considered as belonging to the application's
Protection domain.
Claims (10)
- A kind of 1. backlight module, it is characterised in that including：One backboard, has an at least support component, there is the support component support shaft to be constructed with multiple fins, described more A fin construction is the outside that connection and ring are located at the support shaft；An at least optical diaphragm, the optical diaphragm are perforated with least one,Wherein, an at least support component is to wear the perforation of the optical diaphragm, and the madial wall of the perforation Only with the fin structural contact.
- 2. backlight module as claimed in claim 1, it is characterised in that the backboard has multiple support components, and The optical diaphragm has multiple perforation corresponding to the multiple support component, wherein the two of which of the multiple perforation is worn The on line of the central point in hole is the central point by the optical diaphragm.
- 3. backlight module as claimed in claim 1, it is characterised in that the quantity of the multiple fin construction is 3,4,5 Piece or 6.
- 4. backlight module as claimed in claim 1, it is characterised in that the material of the multiple fin construction be selected from sponge, The group that silica gel and soft rubber are formed.
- 5. backlight module as claimed in claim 1, it is characterised in that the multiple optical diaphragm is selected from by diffusion sheet, water chestnut Eyeglass, blast piece, and the group that dual brightness enhancement piece is formed.
- A kind of 6. liquid crystal display device, it is characterised in that including：One housing, andOne backlight module, the backlight module are arranged at the housing, and the backlight module includes：One backboard, has an at least support component, there is the support component support shaft to be constructed with multiple fins, described more A fin construction is the outside that connection and ring are located at the support shaft；AndAn at least optical diaphragm, the optical diaphragm are perforated with least one,Wherein, an at least support component is to wear the perforation of the optical diaphragm, and the madial wall of the perforation Only with the fin structural contact.
- 7. liquid crystal display device as claimed in claim 6, it is characterised in that the backboard has multiple support groups Part, and the optical diaphragm has multiple perforation corresponding to the multiple support component, wherein the multiple perforation is wherein The on line of the central point of two perforation is the central point by the optical diaphragm.
- 8. liquid crystal display device as claimed in claim 6, it is characterised in that the quantity of the multiple fin construction is 3,4 Piece, 5 or 6.
- 9. liquid crystal display device as claimed in claim 6, it is characterised in that the material of the multiple fin construction is selected from sea The group that continuous, silica gel and soft rubber are formed.
- 10. liquid crystal display device as claimed in claim 6, it is characterised in that the multiple optical diaphragm is to select free diffusing Piece, rhombus lens, blast piece, and the group that dual brightness enhancement piece is formed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945735.5A CN107942557A (en) | 2017-10-12 | 2017-10-12 | Liquid crystal display device and its backlight module |
| PCT/CN2017/110083 WO2019071690A1 (en) | 2017-10-12 | 2017-11-09 | Liquid crystal display device, and backlight module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945735.5A CN107942557A (en) | 2017-10-12 | 2017-10-12 | Liquid crystal display device and its backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107942557A true CN107942557A (en) | 2018-04-20 |
Family
ID=61935175
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710945735.5A Pending CN107942557A (en) | 2017-10-12 | 2017-10-12 | Liquid crystal display device and its backlight module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107942557A (en) |
| WO (1) | WO2019071690A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019071691A1 (en) * | 2017-10-12 | 2019-04-18 | 惠科股份有限公司 | Liquid display device and backlight module thereof |
| WO2019071689A1 (en) * | 2017-10-12 | 2019-04-18 | 惠科股份有限公司 | Liquid-crystal display device and backlight module thereof |
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| CN204062552U (en) * | 2014-07-02 | 2014-12-31 | 深圳市兆纪光电有限公司 | A kind of easy-to-assemble LED-backlit module |
| CN204084215U (en) * | 2014-09-17 | 2015-01-07 | 深圳Tcl新技术有限公司 | Reflector plate fixation kit and liquid crystal display |
| CN204176478U (en) * | 2014-11-26 | 2015-02-25 | 京东方科技集团股份有限公司 | A kind of light guide plate locating dowel, backlight module and display unit |
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| KR101533662B1 (en) * | 2009-01-09 | 2015-07-06 | 삼성디스플레이 주식회사 | Display device |
| CN205402421U (en) * | 2016-03-17 | 2016-07-27 | 青岛海信电器股份有限公司 | Straight down type backlight module and display device provided with same |
| CN107942558A (en) * | 2017-10-12 | 2018-04-20 | 惠科股份有限公司 | Liquid crystal display device and its backlight module |
| CN107942568A (en) * | 2017-10-12 | 2018-04-20 | 惠科股份有限公司 | Liquid crystal display device and its backlight module |
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2017
- 2017-10-12 CN CN201710945735.5A patent/CN107942557A/en active Pending
- 2017-11-09 WO PCT/CN2017/110083 patent/WO2019071690A1/en active Application Filing
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| CN204062552U (en) * | 2014-07-02 | 2014-12-31 | 深圳市兆纪光电有限公司 | A kind of easy-to-assemble LED-backlit module |
| CN204084215U (en) * | 2014-09-17 | 2015-01-07 | 深圳Tcl新技术有限公司 | Reflector plate fixation kit and liquid crystal display |
| CN204176478U (en) * | 2014-11-26 | 2015-02-25 | 京东方科技集团股份有限公司 | A kind of light guide plate locating dowel, backlight module and display unit |
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| WO2019071691A1 (en) * | 2017-10-12 | 2019-04-18 | 惠科股份有限公司 | Liquid display device and backlight module thereof |
| WO2019071689A1 (en) * | 2017-10-12 | 2019-04-18 | 惠科股份有限公司 | Liquid-crystal display device and backlight module thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019071690A1 (en) | 2019-04-18 |
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