CN106200124A - Backlight module and liquid crystal indicator - Google Patents
Backlight module and liquid crystal indicator Download PDFInfo
- Publication number
- CN106200124A CN106200124A CN201610805213.0A CN201610805213A CN106200124A CN 106200124 A CN106200124 A CN 106200124A CN 201610805213 A CN201610805213 A CN 201610805213A CN 106200124 A CN106200124 A CN 106200124A
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- Prior art keywords
- ladder
- diaphragm
- glue frame
- backlight module
- cantilever arm
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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
-
- 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
- G02F1/133314—Back frames
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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)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a kind of backlight module and liquid crystal indicator, relate to technical field of liquid crystal display, described backlight module includes glue frame and is placed in the diaphragm above glue frame, described glue frame includes wall and a support, described support includes the stepped part extending internally from described glue frame Zhi Biduan and reducing step by step, this stepped portion divides the first ladder included for supporting described diaphragm, connect described glue frame and prop up the second ladder of wall, with the sidewall that described diaphragm edge was oppositely arranged and left gap, described second step edges is additionally provided with the most horizontal-extending cantilever arm above described first ladder, described second ladder and described cantilever arm thereof can be provided commonly for supporting display panels, can solve the problem that the display panels for BM district is less cannot use the problem putting glue frame fixed form on diaphragm.
Description
Technical field
The present invention relates to technical field of liquid crystal display, be specifically related to a kind of backlight module and liquid crystal indicator.
Background technology
In liquid crystal indicator, display panels is arranged on above backlight module, and backlight module provides briliancy to fill for it
The area source divide, being evenly distributed.There is certain i.e. BM district, panel black surround region in panel display section and face plate edge, and different
The panel BM district cause not of uniform size of producer, in current panel resource BM zones values be typically sized to 3.0mm, 4.9mm, 5.0mm,
5.9mm、7.0mm、7.8mm。
Existing backlight module is divided into according to the difference of blooming piece fixed form and puts glue frame and underlying glue frame two kinds, light
Putting glue frame on diaphragm and refer to that blooming piece is placed on glue frame, glue frame part stretches between light guide plate and blooming piece, will lead
Tabula rasa and blooming piece separate, and glue frame is for pressing light guide plate and carries blooming piece and display panels.With blooming piece
The fixed form of underlying glue frame is compared, and the fixed form that blooming piece is put glue frame can overcome conventional optical defects, the brightest
, there is the advantage of more backlight subjective aspect in the problem such as limit, lamp shadow.
For putting the mode of glue frame on blooming piece in backlight module, it assembles schematic diagram as it is shown in figure 1, backlight module bag
Include: glue frame 11 and be placed in the diaphragm 12 above glue frame 11.Wherein, glue frame 11 is the two-stage inwardly reduced step by step stepped location knot
Structure, glue frame 11 is provided with the first ladder 111, joint face 112 and the second ladder 113.Specifically, diaphragm 12 edge and joint face 112
Being oppositely arranged, diaphragm 12 is positioned on the first ladder, uses the modes such as spacing or fixed block to be fixed on glue frame 11 by diaphragm 12.
As in figure 2 it is shown, be connected on the backlight module shown in Fig. 1 by display panels 13, it is assembled into liquid crystal display dress
Put.Fig. 3 is panel BM district and the position relationship schematic diagram of A, B, C in liquid crystal indicator, wherein, glue frame is used for carrying liquid crystal
The part of display floater has certain distance to require A, the width of support panel on the i.e. second ladder, and usual A value is more than 2.0mm；
The expansion space B of diaphragm is usually 3/1000ths, i.e. gap between diaphragm edge and glue frame joint face, with 50 cun of panels is
Example, B value is about 1.5mm；Produce the phenomenon of subjective bright border for avoiding diaphragm edge to go out light, diaphragm edge is to Display panel district
Territory has certain distance requirement C, usual C value to be more than 2.0mm.In order to avoid bright border phenomenon occurs in the edge of panel display section,
Meet tri-the value sums of A, B, C hem width less than the BM district of panel, as a example by 50 cun of panels, 50 cun of panels when design as far as possible
BM district size is 5.0mm, and above-mentioned A, B, C tri-value sum is less than A, B, C tri-value more than or equal to 5.5mm, such BM zones values
Sum, then BM district can not whole gaps between rubber cover frame and diaphragm, be easily caused light leakage phenomenon and produce, have a strong impact on display
The quality of device product, so uses the fixed form putting glue frame on blooming piece not just to be suitable for 50 cun of panels.
Therefore, prior art uses the fixed form putting glue frame on above-mentioned blooming piece, for the panel that BM district is less,
Above-mentioned A, B, C tri-value sum is more than the value in display panels BM district, and BM district can not be all between rubber cover frame and diaphragm
Gap, causes the fixed form putting glue frame on diaphragm not to be suitable for the panel that BM district is less.
Summary of the invention
Embodiments of the invention provide a kind of backlight module and liquid crystal indicator, are provided in particular on a kind of blooming piece
Put the fixed form of glue frame, it is possible to solve above-mentioned prior art cannot use diaphragm for the display panels that BM district is less
On put the problem of glue frame fixed form.
For reaching above-mentioned purpose, the embodiment of the present invention be the technical scheme is that
First aspect provides a kind of backlight module, including glue frame be placed in the diaphragm above glue frame, described glue frame include a wall and
The support vertical with described wall, described wall is fixed on backboard, and described support includes inwardly prolonging from described glue frame Zhi Biduan
The stepped part stretched and reduce step by step, this stepped portion divide the first ladder included for supporting described diaphragm, connect described
Glue frame props up the second ladder of wall and connects the sidewall of described first ladder and described second ladder, and described sidewall and described film
Sheet edge is oppositely arranged and leaves gap, and described second step edges is additionally provided with the most horizontal-extending on described first ladder
The cantilever arm of side, wherein, described second ladder and described cantilever arm thereof can be provided commonly for supporting display panels.
Second aspect provides a kind of liquid crystal indicator, the backlight provided including display panels and above-mentioned first aspect
Module, wherein, described display panels is connected on described backlight module medium-height trestle the second ladder, and arranges on the second ladder
Cantilever arm also bearing part display panels, display panels BM district covers the rack side wall of described backlight module and film
Gap between sheet edge.
The embodiment of the present invention due in backlight module glue frame include wall and a support；Support includes from described glue frame Zhi Biduan
The stepped part extended internally and reduce step by step, in this stepped part, the first ladder is used for supporting diaphragm, and the second ladder is used
In connecting glue frame support arm, sidewall and diaphragm edge are oppositely arranged and leave gap；Second step edges is provided with inside level and prolongs
Stretch the cantilever arm above described first ladder, and the second ladder and described cantilever arm thereof can be provided commonly for supporting LCD
Plate.
Compared with existing correlation technique, the Advantageous Effects of the technical scheme that the embodiment of the present application is proposed at least wraps
Include:
After each parts of backlight module A, B, C value require constant in the case of, in the backlight module relative to existing correlation technique,
Owing to glue frame bracket is at horizontal-extending stepped construction, so, the structure the most corresponding with A, B, C value is laid in horizontal direction
, the width of its horizontal direction by A, B, C value three's sum constitute；And glue frame bracket is for the of support panel in the application
Two step edges, are additionally provided with the most horizontal-extending cantilever arm above the first ladder, and the second ladder and cantilever arm thereof can
Be provided commonly for support display panels, so, corresponding with A value and be used for support panel structure by adjutage and the second ladder
The common two parts in face are constituted, and adjutage stacking is arranged on above the first ladder corresponding with B and C, therefore the width of adjutage exists
Horizontal width direction is not take up space, say, that in the horizontal direction width be by B, C value, second-order tread for supporting
Three's sum of a part for panel A value determines, it may be assumed that the width of horizontal direction is rejected adjutage width D by A, B, C value sum,
The width D of cantilever arm is to decrease the width of horizontal direction shared by edge module in the application.
Further illustration, the second ladder and the common support panel of cantilever arm, i.e. cantilever arm also carry part
The width of panel, the width D of cantilever arm part is generally advised as 0.5-1.5mm, so the width A of bearing panel part on glue frame
Width and the width sum of cantilever arm support panel, the width of the i.e. second ladder support panel equal to the second ladder support panel
The width D of cantilever arm part is deducted for the width A of bearing panel part on glue frame.As a example by 50 cun of display panels, its BM
Zones values be 5.0mm, D value be 1.0mm, then the width of the second ladder support panel becomes A-D=2.0-1.0=1.0mm, so
Tri-data investigation of A, B, C become A-D+B+C=2.0-1.0+1.5+2.0=4.5mm, such 4.5mm less than panel BM zones values
5.0mm, BM district can whole gaps between rubber cover frame and diaphragm, it is to avoid the edge of panel display section occurs that bright border is existing
As, make the fixed form putting glue frame on diaphragm be applicable to the panel that BM district is 5.0mm further.
Compared with only leaning on glue frame the second ladder supports with panel in prior art liquid crystal indicator, for the liquid that BM district is less
LCD panel, in the present invention, cantilever arm also carries the width A etc. of bearing panel part on the width of part panels, i.e. glue frame
In width and the width sum of cantilever arm support panel of the second ladder support panel, and the width D of cantilever arm part and B value portion
Divide overlap so that tri-data investigation of A, B, C become the width (A-D) of the second ladder support panel, B, C tri-is worth sum, and these are three years old
In the range of value sum is in panel BM sector width, BM district can whole gaps between rubber cover frame and diaphragm, prevent printing opacity existing
As producing, and then the fixed form putting glue frame on diaphragm can be made to be applicable to the panel that BM district is less.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be some embodiments of the present invention, for this
From the point of view of the those of ordinary skill of field, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation of backlight module in prior art.
Fig. 2 is the structural representation of liquid crystal indicator in prior art.
Fig. 3 is panel BM district and the position relationship schematic diagram of A, B, C in liquid crystal indicator shown in Fig. 2.
Fig. 4 is the structural representation of a kind of liquid crystal indicator that the embodiment of the present invention 1 provides.
Fig. 5 is panel BM district and the position relationship schematic diagram of A, B, C in liquid crystal indicator shown in Fig. 4.
Fig. 6 is the structural representation of a kind of backlight module that the embodiment of the present invention 2 provides.
Fig. 7 is the structural representation of the first cantilever arm that the embodiment of the present invention 2 provides.
Fig. 8 is the structural representation of the second cantilever arm that the embodiment of the present invention 2 provides.
Fig. 9 is the structural representation of the third cantilever arm that the embodiment of the present invention 2 provides.
Figure 10 is the structural representation of the 4th kind of cantilever arm that the embodiment of the present invention 2 provides.
Figure 11 is the structural representation of the supporting part of glue frame shown in Fig. 6.
Figure 12 is the structural representation of the part of diaphragm hangers shown in Fig. 6.
Figure 13 is the structural representation of another brood lac frame supporting part that the embodiment of the present invention 2 provides.
Figure 14 is the structural representation of the another kind of diaphragm hangers that the embodiment of the present invention 2 provides.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The all other embodiments obtained on the premise of not making creative work, broadly fall into the scope of protection of the invention.
It should be noted that in the case of not conflicting, the feature in embodiments of the invention and embodiment can be mutual
Combination.
Liquid crystal indicator can be any product with display function or parts, as liquid crystal TV set, panel computer,
Pocket pc etc..Panel can be the various non-spontaneous light display device including display panels, due to this
One class display floater self is the most luminous, and backlight module is positioned at display panels behind, to serve as the light of display panels
Source, it is therefore desirable to the backlight module with superperformance is set.
Embodiment 1
In the related, there is certain i.e. BM in panel black surround region in the viewing area of display panels and face plate edge
District, the panel BM district cause not of uniform size of different manufacturers, in current panel resource BM zones values be typically sized to 3.0mm, 4.9mm,
5.0mm、5.9mm、7.0mm、7.8mm。
For the display panels that BM district is less, for the width A of liquid carrying LCD panel part, diaphragm on glue frame
Gap B between edge and glue frame joint face and diaphragm edge are to distance C of panel display section, and these three value sum is more than
The value in panel BM district, is easily caused light leakage phenomenon and produces so that putting the fixed form of glue frame on diaphragm, not to be suitable for BM district less
Panel.In order to avoid bright border phenomenon occurs in the edge of panel display section, further in solution liquid crystal indicator on diaphragm
Putting glue frame fixed form and be not suitable for the problem of the less panel in BM district, the embodiment of the present invention 1 provides a kind of liquid crystal indicator,
As shown in Figure 4, including liquid crystal panel 23 and backlight module:
Wherein, display panels 23 is connected on backlight module, and backlight module includes glue frame 21 and is placed in above glue frame 21
Diaphragm 22, glue frame 21 includes wall 211 and the support 212 vertical with a wall 211, and the backboard of a wall 211 and backlight module is fixed
Connect.
Concrete, support 212 includes the stepped part extending internally from 21 wall 211 ends of glue frame and reducing step by step, should
Stepped portion divide include for supporting diaphragm 22 the first ladder 2121, connect 21 walls 211 of glue frame the second ladder 2123, with
And be connected to the sidewall 2122 between the first ladder 2121 and the second ladder 2123, and sidewall 2122 is relative with diaphragm 22 edge sets
Put and leave gap, the expansion space that gap is diaphragm 22 between sidewall 2122 and diaphragm 22 edge；Second ladder 2123 limit
Edge is additionally provided with the most horizontal-extending cantilever arm 2124 above the first ladder 2121, wherein, and the second ladder 2123 and stretching
Go out arm 2124 can be provided commonly for supporting display panels 23.
Further, display panels 23 is fixed on the second ladder 2123 upper surface of support 212, and the second ladder
The cantilever arm 2124 also bearing part liquid crystal panel 23 arranged on 2123, in order to avoid the light through diaphragm edge is directly entered
The viewing area of liquid crystal panel 23, causes the edge brightness problem of non-uniform of viewing area, and the BM district of liquid crystal panel 23 covers
Gap between marginal portion and glue frame bracket 212 sidewall 2122 and diaphragm 22 edge of diaphragm 22.
It should be noted that present embodiments provide in a kind of liquid crystal indicator, and the structure of backlight module, ability
Field technique personnel can be arranged as required to the backlight assembly such as light guide plate, reflector plate, and this is no longer going to repeat them.
Compared with existing correlation technique, the Advantageous Effects of the technical scheme that the embodiment of the present application is proposed at least wraps
Include:
The liquid crystal indicator that the embodiment of the present invention 1 provides, owing in the backlight module of employing, glue frame includes wall and a support；?
Frame includes the stepped part extending internally from described glue frame Zhi Biduan and reducing step by step, and in this stepped part, the first ladder is used
In supporting diaphragm, the second ladder is used for connecting glue frame support arm, and sidewall and diaphragm edge are oppositely arranged and leave gap；Second ladder
Edge is provided with the most horizontal-extending cantilever arm above described first ladder, and the second ladder and described cantilever arm thereof can be total to
With being used for supporting display panels.
As it is shown in figure 5, after each parts of backlight module A, B, C value require constant in the case of, relative to skill of being correlated with
In the backlight module of art, owing to glue frame bracket is at horizontal-extending stepped construction, so, the most corresponding with A, B, C value knot
Structure is laid in horizontal direction, the width of its horizontal direction by A, B, C value three's sum constitute；And glue frame bracket in the application
For the second step edges of support panel, it is additionally provided with the most horizontal-extending cantilever arm above the first ladder, and second
Ladder and cantilever arm thereof can be provided commonly for support display panels, so, corresponding with A value and be used for support panel structure by
Adjutage and the common two parts of second-order tread are constituted, and adjutage stacking is arranged on above the first ladder corresponding with B and C,
Therefore the width of adjutage is not take up space in horizontal width direction, say, that in the horizontal direction width be by B, C value, second
The three's sum of the part being used for support panel A value on cascaded surface determines, it may be assumed that the width of horizontal direction is by A, B, C value sum
Rejecting adjutage width D, the width D of cantilever arm is to decrease the width of horizontal direction shared by edge module in the application.
Illustrate, owing to support the second ladder and the common support panel of cantilever arm, i.e. cantilever arm also carry portion
The width of subpanel, the width D of cantilever arm part is generally advised as 0.5-1.5mm, so the width of bearing panel part on glue frame
Degree A is equal to the width of the second ladder support panel and the width sum of cantilever arm support panel, the i.e. second ladder support panel
Width is the width D that the width A of bearing panel part on glue frame deducts cantilever arm part.Again due to the width D of cantilever arm part
Being worth overlapping with B value part, the most now tri-data investigation of A, B, C become the width of the second ladder support panel, B, C tri-is worth it
With.
As a example by 50 cun of display panels, its BM zones values be 5.0mm, D value be 1.0mm, then the second ladder supporting surface
The width of plate becomes A-D=2.0-1.0=1.0mm, and tri-data investigation of such A, B, C become A-D+B+C=2.0-1.0+1.5+
2.0=4.5mm, such 4.5mm are less than panel BM zones values 5.0mm, BM district can whole gaps between rubber cover frame and diaphragm,
There is bright border phenomenon in the edge avoiding panel display section, makes the fixed form putting glue frame on diaphragm be applicable to BM district further and is
The panel of 5.0mm.
Compared with only leaning on glue frame the second ladder supports with panel in prior art liquid crystal indicator, for the liquid that BM district is less
LCD panel, in the present invention, cantilever arm also carries the width A etc. of bearing panel part on the width of part panels, i.e. glue frame
In width and the width sum of cantilever arm support panel of the second ladder support panel, and the width D of cantilever arm part and B value portion
Divide overlap so that tri-data investigation of A, B, C become the width (A-D) of the second ladder support panel, B, C tri-is worth sum, and these are three years old
In the range of value sum is in panel BM sector width, BM district can whole gaps between rubber cover frame and diaphragm, prevent printing opacity existing
As producing, and then the fixed form putting glue frame on diaphragm can be made to be applicable to the panel that BM district is less.
Embodiment 2
For solving the panel less for BM district, tri-value sums of A, B, C cause putting glue frame on diaphragm more than panel BM zones values
The inapplicable problem of fixed form, the embodiment of the present invention 2 provides a kind of backlight module, as shown in Figure 6.Backlight module includes: glue
Frame 31 and be placed in the diaphragm 32 above glue frame 31, wherein, glue frame 31 includes wall 311 and a support 312, and support 312 includes from glue
The stepped part that 31 wall 311 ends of frame extend internally and reduce step by step, this stepped portion is divided and is included for supporting diaphragm 32
First ladder 3121, the second ladder 3123 connecting 31 walls 311 of glue frame and diaphragm 32 edge are oppositely arranged and leave gap
Sidewall 3122, the expansion space that gap is diaphragm 32 between sidewall 3122 and diaphragm 32 edge；Second ladder 3123 edge is also
It is provided with the most horizontal-extending cantilever arm 3124 above the first ladder 3121, wherein, the second ladder 3123 and cantilever arm thereof
3124 can be provided commonly for supporting display panels.
The ladder progression of the stepped part of support of the present invention is not limited only to two-stage, the ladder progression of support can according to glue frame
The specific structural features of the miscellaneous part of assembling is coordinated to set.
Specifically, diaphragm 32 is placed on the first ladder 3121 of glue frame 31 support 312, on support 312 second ladder 3123
Cantilever arm 3124, support 312 sidewall 3122 and support 312 first ladder 3121 arranged, three forms a U-type groove, and this is U-shaped
Groove is the expansion space of diaphragm 32, and the situation such as sliding, dislocation will not occur after also making diaphragm expanded by heating in the horizontal direction,
Limit the relative displacement in diaphragm horizontal direction.
Alternatively, on support 312 distance of the first ladder 3121 upper surface and the second ladder 3123 lower surface more than or etc.
In diaphragm 32 thickness, it is ensured that when diaphragm 32 is heated generation expansion, diaphragm 32 is in stretching on support 312 second ladder 3123
Go out in the U-type groove that arm 3124, support 312 sidewall 3122 and support 312 first ladder 3121 are formed, the preferably first ladder 3121
The distance of upper surface and the second ladder 3123 lower surface is equal to diaphragm 32 thickness, such cantilever arm 3124 lower surface, support 312 side
Wall 3122 surface and the first ladder 3121 upper surface just fit tightly in diaphragm 32, prevent now diaphragm 32 from producing horizontal direction
Displacement and vertical direction displacement；Simultaneously for liquid carrying LCD panel on the second ladder 3123, at least leave the second ladder
Thickness is as the gap between diaphragm and display panels, it is to avoid diaphragm extrudes the liquid crystal display being in above it because of flatulence of heat type
Panel.
Process additionally, support 312 first ladder 3121 is arranged above circular arc away from one end of sidewall 3122, it is to avoid the first ladder
3121 edges scratch, damage diaphragm 32, simultaneously facilitate assembling diaphragm 32.
Alternatively, as it is shown in fig. 7, the cantilever arm on support 312 second ladder 3123 is wedge shaped projection.
Specifically, cantilever arm 3124 is provided with: first horizontal plane equal with support 312 second ladder 3123 upper surface
3124a, the first horizontal plane 3124a and the second ladder 3123 upper surface common liquid carrying LCD panel so that bearing panel portion
The width divided includes the width D of cantilever arm 3124 part；The side 3124b parallel with support 312 sidewall 3122, side 3124b
Flush with diaphragm 32 edge or at least gap, in order to assembling diaphragm 32；Relative with support 312 first ladder 3121 upper surface
And smooth lozenges 3124c, lozenges 3124c are designed as inclined-plane, the thickness of lozenges 3124c is by support 312 sidewall 3122
Place is the most thinning towards diaphragm 32 direction, and the thickness in lozenges 3124c thickness and the second ladder 3123 thickness identical, work as film
Sheet 32 produces expansion when being heated, and can extrude to support 312 sidewall 3122 direction, and now, first diaphragm 32 edge touches stretches
Go out the lozenges 3124c below arm 3124, owing to the thickness of lozenges 3124c is at diaphragm 32 side to support 312 sidewall 3122
The most thickening, decrease contacting of lozenges and diaphragm edge, diaphragm outward expansion will not be hindered, it is to avoid expansion space is little to cause
Diaphragm is wrinkling and then causes the problem such as shadow, water ripples.
Further, the lozenges below cantilever arm can be designed as curved surface.As shown in Figure 8, lozenges 4124c can set
Be calculated as towards the first ladder 3121 cambered outwards arc surface of side, the thickness of lozenges 4124c by support 312 sidewall 3122 towards
Diaphragm 32 direction is the most thinning, and the thickness in lozenges 4124c thickness and the second ladder 3123 thickness identical, when diaphragm 32 exists
Producing when being heated and expand, can extrude to support 312 sidewall 3122 direction, now, first diaphragm 32 edge touches cantilever arm
Lozenges 4124c below 4124, due to the thickness of lozenges 4124c at diaphragm 32 side to support 312 sidewall 3122 gradually
Thickening, decrease contacting of lozenges and diaphragm edge, diaphragm outward expansion will not be hindered, it is to avoid expansion space is little causes diaphragm
Wrinkling and then cause the problem such as shadow, water ripples.Certainly, lozenges may be designed in the circle away from the first ladder direction indent
Cambered surface
As a kind of deformation of above-mentioned cantilever arm, as it is shown in figure 9, cantilever arm 5124 is provided with: with on support 312 second ladder 3123
The first horizontal plane 5124a that surface is equal；The side 5124b parallel with support 312 sidewall 3122；With support 312 first ladder
The lozenges 5124c that 3121 upper surfaces are relative and smooth；The second horizontal plane 5124d parallel for horizontal plane 5124a with first, so
Adding the steadiness of cantilever arm 5124, diaphragm 32 expanded by heating is to cantilever arm 5124, sidewall 3122 and the first ladder simultaneously
Time in 3121 U-type groove formed, arranging of the second horizontal plane 5124d is easier to laminating membrane surface so that diaphragm is in vertically side
Upwards will not produce relative displacement.
Alternatively, as shown in Figure 10, the cantilever arm on support 312 second ladder 3123 can also be triangular bump.
Specifically, cantilever arm 6124 is provided with: first horizontal plane equal with support 312 second ladder 3123 upper surface
6124a；The lozenges 6124c relative and smooth with support 312 first ladder 3121 upper surface, the thickness of lozenges 6124c by
At support 312 sidewall 3122 the most thinning towards diaphragm 32 direction, and the thickness in lozenges 6124c thickness and the second ladder
3123 thickness are identical.Meanwhile, cantilever arm 6124 flushes with diaphragm 32 edge near one end of diaphragm 32 side or at least gap, with
It is easy to assemble diaphragm 32；Lozenges 6124c design can be inclined-plane, it is also possible to for curved surface, i.e. towards the first ladder 3121 direction
The arc surface of evagination or the arc surface away from the first ladder 3121 direction indent.
On the basis of above-mentioned embodiment, as shown in FIG. 11 and 12, diaphragm 32 edge is provided with outside multiple being intervally arranged
Convex hangers 321, hangers 321 and diaphragm 32 are in same plane, and hangers 321 can be by the way of cutting diaphragm 32 edge
Obtaining, on glue frame 31, corresponding hangers 321 position is provided with supporting part 313, carries hangers 321 by supporting part 313, thus realizes film
Fixing of sheet 32.Use the fixed form putting glue frame on diaphragm so that diaphragm surrounding above glue frame, first on glue frame bracket
Diaphragm is separated by ladder with light guide plate, the most lighttight glue frame can shield portions light and reflect, the phenomenon such as diffuse-reflectance,
And then unnecessary light will not be propagated on diaphragm.
Alternatively, between glue frame 31 supporting part 313 and diaphragm 32 hangers 321, it is fixed with multiple form, can be machinery
Connect, as the structure by being integrally machined molding with supporting part is connected, it is also possible to for gluing connection, such as shading rubber belt, double faced adhesive tape
Band etc., it is also possible to use simultaneously and be mechanically connected and gluing connection.It should be noted that owing to present liquid crystal indicator outward appearance needs
Asking and be more likely to lightening, fixed form is avoided causing as far as possible and is taken more space.Several different carrying is provided individually below
Specific implementation fixing between portion and hangers.
As shown in Figs. 13 and 14, the supporting part 313 on glue frame 31 can be projection integrated with supporting part 313
3131, corresponding diaphragm 32 hangers 321 is provided with and the hanging hole 3211 of protruding 3131 mating shapes, and hanging hole 3211 is suspended on convex
Rise on 3131, so that diaphragm 32 is fixed on glue frame 31.
Specifically, glue frame 31 supporting part 313 has multiple protruding 3131, the direction of protruding 3131 generally individually with diaphragm 32
The plane at place is perpendicular, and such diaphragm 32 can relatively easily be located on protruding 3131.In order to ensure on hangers 321
Hanging hole 3211 can be suspended in this projection 3131, and alternatively, protruding 3131 height are more than or equal to the hanging hole on hangers 321
3211 degree of depth, during assembling, diaphragm 32 hangers 321 lower surface is fitted with supporting part 313 bottom surface, to ensure that hanging hole 3211 can hang
On protruding 3131, thus fixing diaphragm.Protruding 3131 can be vertical column, and as cylindric, this shape can more be held
Change places the hanging hole 3211 on hangers 321, and time in protruding 3131 hanging holes 3211 being located on hangers 321, be not easy to from
Hanging hole 3211 is deviate from.
Wherein, alternatively, the projection on supporting part can have multiple different cross sectional shape, can be circular, polygon and
Rectangle and semicircular combination uiform section, concrete convex sectional shape can according to actual needs, the production work of supporting part
Skill and the most easily assembling and freely arrange, this is not restricted by the embodiment of the present invention.Simultaneously in order to ensure supporting part pair
The location restriction effect of diaphragm, the hanging hole shape on hangers also should match with the convex sectional shape on supporting part.
Additionally, glue frame 31 supporting part 313 can also be the groove of one and diaphragm 32 hangers 321 mating shapes, hangers is embedding
Enter in groove, diaphragm is fixed on glue frame.
On the other hand, owing to cantilever arm flushes with diaphragm edge near one end of diaphragm side or at least gap, and liquid crystal
In display device there is certain interval in diaphragm in the vertical direction and panel, and diaphragm is easily at the first ladder and display panels
Between shake, therefore, diaphragm in the vertical direction has certain degree of freedom, has that diaphragm is upwards movable rides up to cantilever arm
May.For this kind of situation, by shading rubber belt, diaphragm can be fixed on glue frame.Specifically, shading rubber belt covers at glue frame
At the portion of diaphragm upper surface.Further, shading rubber belt is black shading rubber belt.So can play and diaphragm is fixed
On glue frame, prevent the purpose that diaphragm in the vertical direction moves so that fixing of diaphragm is more firm；Utilize black shading glue
Carry lighttight characteristic, it is also possible to block diaphragm upper surface portion shadow so that shadow will not show subjective.
Furthermore, it is possible to it is the highest directly to arrange adhesive strength in glue frame 31 supporting part 313 and diaphragm 32 hangers 321 contact site
Two-sided tape, and diaphragm 32 is fixed on glue frame 31 by two-sided tape.Use gluing connected mode easy on producing
Realize, it is simple to operation, the cost of raw material is cheap.Two-sided tape is easier operation during the assembling of backlight module, can protect
The overall cleaning of card backlight module.
Certainly, the above fixed form for supporting part with hangers is also only that one illustrates, it is contemplated that same
Can be fixed together with hangers by supporting part by other connected modes, this is not restricted by the embodiment of the present invention.
The backlight module that the embodiment of the present invention 2 provides, the glue frame owing to using includes wall and a support；Support includes from institute
Stating the stepped part that glue frame Zhi Biduan extends internally and reduces step by step, in this stepped part, the first ladder is used for support membrane
Sheet, the second ladder is used for connecting glue frame support arm, and sidewall and diaphragm edge are oppositely arranged and leave gap；Second step edges is arranged
There is the most horizontal-extending cantilever arm above described first ladder, and the second ladder and described cantilever arm thereof can be provided commonly for propping up
Support display panels.
After assembling each parts of backlight module, A, B, C value size is constant, owing to support the second ladder and cantilever arm prop up jointly
Support panel, i.e. cantilever arm also carry the width of part panels, and the width D of cantilever arm part is generally advised as 0.5-1.5mm, institute
With the width A of bearing panel part on glue frame equal to width and the cantilever arm support panel of the second ladder support panel width it
With, the width A that width is bearing panel part on glue frame of the i.e. second ladder support panel deducts the width D of cantilever arm part.
Overlapping with B value part due to the width D value of cantilever arm part again, the most now tri-data investigation of A, B, C become the second ladder and prop up
The support width of panel, B, C tri-are worth sum.
As a example by 50 cun of display panels, its BM zones values be 5.0mm, D value be 1.0mm, then the second ladder supporting surface
The width of plate becomes A-D=2.0-1.0=1.0mm, and tri-data investigation of such A, B, C become A-D+B+C=2.0-1.0+1.5+
2.0=4.5mm, such 4.5mm are less than panel BM zones values 5.0mm, BM district can whole gaps between rubber cover frame and diaphragm,
There is bright border phenomenon in the edge avoiding panel display section, makes the fixed form putting glue frame on diaphragm be applicable to BM district further and is
The panel of 5.0mm.
Compared with only leaning on glue frame the second ladder supports with panel in prior art liquid crystal indicator, for the liquid that BM district is less
LCD panel, in the present invention, cantilever arm also carries the width A etc. of bearing panel part on the width of part panels, i.e. glue frame
In width and the width sum of cantilever arm support panel of the second ladder support panel, and the width D of cantilever arm part and B value portion
Divide overlap so that tri-data investigation of A, B, C become the width (A-D) of the second ladder support panel, B, C tri-is worth sum, and these are three years old
In the range of value sum is in panel BM sector width, BM district can whole gaps between rubber cover frame and diaphragm, prevent printing opacity existing
As producing, and then the fixed form putting glue frame on diaphragm can be made to be applicable to the panel that BM district is less.
It has been the technology of this area about the backlight module of the embodiment of the present invention and other compositions etc. of liquid crystal indicator
Known to personnel, refer to the state of the art, no longer describe in detail at this.
Various embodiments above only in order to technical scheme to be described, is not intended to limit；Although with reference to aforementioned each reality
Execute example the present invention has been described in detail, it will be understood by those within the art that: its still can to aforementioned respectively
Technical scheme described in embodiment is modified, or the most some or all of technical characteristic is carried out equivalent；And
These amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a backlight module, including glue frame and be placed in the diaphragm above glue frame, described glue frame include a wall and with described wall
Vertical support, described wall is fixed on backboard, it is characterised in that: described support includes inwardly prolonging from described glue frame Zhi Biduan
The stepped part stretched and reduce step by step, this stepped portion divide the first ladder included for supporting described diaphragm, connect described
Glue frame props up the second ladder of wall and connects the sidewall of described first ladder and described second ladder, and described sidewall and described film
Sheet edge is oppositely arranged and leaves gap, and described second step edges is additionally provided with the most horizontal-extending on described first ladder
The cantilever arm of side, wherein, described second ladder and described cantilever arm thereof can be provided commonly for supporting display panels.
Backlight module the most according to claim 1, it is characterised in that: described cantilever arm can cover the limit of described diaphragm
Edge.
Backlight module the most according to claim 1, it is characterised in that: described cantilever arm be wedge shaped projection or triangle convex
Block.
Backlight module the most according to claim 3, it is characterised in that: described cantilever arm includes and table on support the second ladder
The lozenges that equal the first horizontal plane in face is relative and smooth with support the first ladder upper surface.
Backlight module the most according to claim 4, it is characterised in that: described lozenges is inclined-plane or curved surface.
Backlight module the most according to claim 5, it is characterised in that: the thickness of described lozenges by rack side wall towards film
Sheet direction is the most thinning, and thickness and second step-thickness in lozenges thickness are identical.
7. according to the backlight module described in claim 1-6, it is characterised in that: described support the first ladder upper surface and second-order
The distance of ladder lower surface is more than or equal to diaphragm thickness.
8. according to the backlight module described in claim 1-6, it is characterised in that: it is provided with multiple being intervally arranged at described diaphragm edge
The hangers of evagination, on glue frame, corresponding described hangers position is provided with the supporting part for carrying described hangers.
Backlight module the most according to claim 8, it is characterised in that: described supporting part is provided with vertical columns, described hangers
Being provided with and the hanging hole of vertical columns mating shapes, hangers is suspended on vertical columns.
10. a liquid crystal indicator, it is characterised in that: include display panels and any one of the claims 1 to 9 institute
The backlight module stated, wherein, described display panels is connected on the second ladder of described backlight module medium-height trestle, and second
Arrange on ladder cantilever arm also bearing part display panels, display panels BM district covers described backlight module
Gap between rack side wall and diaphragm edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610805213.0A CN106200124A (en) | 2016-09-07 | 2016-09-07 | Backlight module and liquid crystal indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610805213.0A CN106200124A (en) | 2016-09-07 | 2016-09-07 | Backlight module and liquid crystal indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106200124A true CN106200124A (en) | 2016-12-07 |
Family
ID=58066568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610805213.0A Pending CN106200124A (en) | 2016-09-07 | 2016-09-07 | Backlight module and liquid crystal indicator |
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| CN (1) | CN106200124A (en) |
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| WO2020237715A1 (en) * | 2019-05-24 | 2020-12-03 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal module |
| WO2021083361A1 (en) * | 2019-10-31 | 2021-05-06 | 京东方科技集团股份有限公司 | Display device |
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Application publication date: 20161207 |