CN110320708A - A kind of back light module unit structure - Google Patents
A kind of back light module unit structure Download PDFInfo
- Publication number
- CN110320708A CN110320708A CN201910612825.1A CN201910612825A CN110320708A CN 110320708 A CN110320708 A CN 110320708A CN 201910612825 A CN201910612825 A CN 201910612825A CN 110320708 A CN110320708 A CN 110320708A
- Authority
- CN
- China
- Prior art keywords
- silica gel
- gel strip
- side wall
- light
- blocking side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Abstract
The invention discloses a kind of back light module unit structures, it includes backboard, the backboard includes ontology, one side wall is provided in four edge parts of the ontology, ontology and four side walls form the cavity for accommodating light guide plate, in four side walls, one of side wall is formed as incident side wall, its excess-three side wall is formed as light-blocking side wall, wherein incident side wall corresponds to the incident side of light guide plate, it is provided with silica gel strip on the inside of three light-blocking side walls, the plastic frame for being held on light guide plate is not provided in backboard.In the application, eliminate conventional use of plastic frame, and it is set up directly on three light-blocking side walls using silica gel strip, existing plastic frame is substituted using silica gel strip, product cost can be reduced, packaging efficiency is promoted, reduces glue frame and the size assortment influence of backboard under the premise of guaranteeing back light module unit structure normal function.
Description
Technical field
The present invention relates to a kind of back light module unit structures.
Background technique
Backlight module undergoes the development of many decades, and shape is constantly developing always, and thickness is more and more thinner, and frame is increasingly
It is narrow.But general frame is in LCD liquid crystal display, still with several big portion's materials such as backboard, glue frame, light guide plate, reflector plate, lamp bar, diaphragm
Carry out structure matching.To the glue frame portion material that liquid crystal display panel plays a supportive role, constantly carries out former material particle, projects technique and structure
Optimal improvements can not be substituted always one of as backlight module inner core component.Glue frame is needed through mold injection shape
At by taking laptop mainstream size (11.6~15.6 cun) as an example, a set of glue frame mold needs 200,000 RMB or more, expense
Costly；Injection molding formed after, the emphasis such as size, warpage, flash, foreign matter control project be also easy to produce it is bad, influence backlight assembling
Efficiency and yield；Glue frame buckles the difficult to govern control of size, is engaged easily with backboard and the problems such as difficult card, escape occurs, needs constantly to modify
Mold is adjusted, same to influence production efficiency and project process.
Summary of the invention
To solve the above problems, eliminating glue in the back light module unit structure the invention proposes a kind of back light module unit structure
Frame thus avoids the problem as brought by glue frame, cancels defect brought by glue frame to make up, silica gel is provided in backboard
Item, to guarantee the normal use of back light module unit structure.
The back light module unit structure, including backboard, the backboard include ontology, are provided with one in four edge parts of the ontology
Side wall, ontology and four side walls form the cavity for accommodating light guide plate, and in four side walls, one of side wall is formed as
Incident side wall, excess-three side wall are formed as light-blocking side wall, and wherein incident side wall corresponds to the incident side of light guide plate, keep off at three
It is provided with silica gel strip on the inside of light side wall, the plastic frame for being held on light guide plate is not provided in backboard.
In the application, conventional use of plastic frame is eliminated, and is set up directly on three light-blocking side walls using silica gel strip,
Existing plastic frame is substituted using silica gel strip, can under the premise of guaranteeing back light module unit structure normal function, reduce product at
Originally, promote packaging efficiency, reduce glue frame and the size assortment influence of backboard.
After silica gel strip, the injection mold of the plastic frame injection mould expense compared with, silica gel use is cheaply very much.?
In terms of installation effectiveness: plastic frame, which is generally required, to be engaged by 16~20 buckles with back plate aperture, and operating personnel needs using jig
Each buckle is engaged and confirmed.And in this application, it is only necessary to the installation of silica gel strip can be completed using simple jig.It adopts
After substituting plastic frame with silica gel strip, it is possible to prevente effectively from narrow frame machine using button point engaging brought by glue frame portion material, at
The problems such as product thickness NG is bad.
Plastic frame is the functionality of backlight module to play the supporting role to liquid crystal display panel, it is ensured that liquid crystal display panel with
The stability of backlight module fitting, while preventing the diaphragm of liquid crystal display panel extruding backlight module；It can be replaced completely using silica gel strip
It for the support sexual function of plastic frame, while can have pooling feature, reduce and liquid crystal display panel and plastic frame occurs in strenuous vibration
In the case of there is the problem of fragmentation.
Specifically, the light-blocking side wall opposite with incident side wall is known as the first light-blocking side wall, the light-blocking side wall difference of another two
Referred to as second light-blocking side wall and the light-blocking side wall of third；The silica gel strip that the inside of the first light-blocking side wall is arranged in is known as the first silica gel
Item, the silica gel strip that the inside of the second light-blocking side wall is arranged in are known as the second silica gel strip, and the inside of the light-blocking side wall of third is arranged in
Silica gel strip is known as third silica gel strip；
There is the first gap between first silica gel strip and the second silica gel strip, have between the first silica gel strip and third silica gel strip
Second gap；There is third space between first silica gel strip and the second light-blocking side wall, the first silica gel strip and the light-blocking side wall of third it
Between have the 4th gap.Preferably, the first gap is 0.2-0.5mm, and the second gap is 0.2-0.5mm, third space 0.2-
0.5mm, the 4th gap are 0.2-0.5mm.
Among the first silica gel strip and the second silica gel strip and third silica gel strip and the first silica gel strip and the second light-blocking side wall
Behind third light-blocking side wall setting gap, generates and do with adjacent silica gel strip when avoiding silica gel strip due to being extended by environmental change
It relates to, and silica gel strip is caused to be partially disengaged backboard and form the phenomenon that arching upward.In addition after gap is set, it is also convenient for the peace of silica gel strip
Dress is conducive to improve installation speed.When being set as contacting with each other by two adjacent silica gel strips, there will necessarily be part silicone gel
Item and makes this part silicone gel item complete to install with can not be successfully due to the plus tolerance of cutting, needs to carry out second-order correction, and causes
The decline of working efficiency.
Specifically, along the extending direction of the first light-blocking side wall, the end face of one end of the first silica gel strip is outward more than the second silicon
The medial surface of adhesive tape, the end face of the other end of the first silica gel strip are more than the medial surface of third silica gel strip outward.
In conventional backboard, the second light-blocking side wall is identical as the length of the light-blocking side wall of third, and above-mentioned design can make the
Second silica gel item and third silica gel strip use identical specification, reduce the overall preparation time of silica gel strip, improve overall work effect.
Preferably, the color of the first silica gel strip is white, grey or black；The color of second silica gel strip is white, grey
Or black；The color of third silica gel strip is white, grey or black.Including the first silica gel strip, the second silica gel strip and third silica gel
Three silica gel strips including item can be same color, or different colours.
According to the actual picture effect of liquid crystal module frame, if edge is shinny, it can choose black and carry out extinction, such as
Fruit edge blacks, and it is bright to can choose white, it is easier to obtain preferable picture taste.
To be easily installed, installation effectiveness is improved, while reducing the probability of light guide plate light leakage, be all provided on each light-blocking side wall
It is equipped with one and is provided only with a silica gel strip.
Preferably, the Shore A hardness of silica gel strip is 50 ± 5 degree.There is appropriate elasticity, energy in the silica gel of the hardness range
Enough reduce light guide plate and squeezes the bending deformation quantity occurred with silica gel upon inflation.
Specifically, silica gel strip is bonded completely with ontology, and silica gel strip is bonded completely with light-blocking side wall；Alternatively, silica gel strip with
Ontology is bonded completely, and has the≤gap of 0.1mm between silica gel strip and light-blocking side wall.According to different needs, can be upper
State and selected in two kinds of bonding modes, no matter which kind of mode, silica gel strip is required to be bonded completely with ontology, to avoid causing to leak
Light.
Preferably, adjacent two side of silica gel strip is bonded in respectively on ontology and light-blocking side wall.Further, silica gel strip
Adjacent two side be bonded on ontology and light-blocking side wall through the double-sided adhesive with a thickness of 0.05-0.15mm thickness respectively.Using
The double-sided adhesive of above-mentioned thickness bonds silica gel strip, can simplify the installation procedure of silica gel strip, improves the installation effect of silica gel strip
Double-sided adhesive when using double-sided adhesive as binder, can be fitted in silicon compared with by the way of brushing binder by rate in advance
On offset plate, then when silica gel plate is cut to silica gel strip, the cutting to double-sided adhesive is synchronously completed.Using the two-sided of above-mentioned thickness
It when glue, in the case where guaranteeing adhesion strength, can overflow outward, and other component be formed viscous to avoid colloid.
Detailed description of the invention
Fig. 1 is the structure diagram of one embodiment of the invention.
Fig. 2 is the enlarged drawing of part A in Fig. 1.
Fig. 3 is the enlarged drawing of part B in Fig. 1.
Fig. 4 be Fig. 2 in C-C to view.
Specific embodiment
In this application, inside or inside will be known as towards the direction of the inside of backboard 10, it is opposite with the inside or inside
Direction be known as outside or external.
Referring to Fig. 1, a kind of back light module unit structure comprising backboard 10, the backboard 10 include the ontology 11 in rectangle,
Four edge parts of the ontology 11 are provided with one side wall, and it is light-blocking that four side walls are successively known as to the first light-blocking side wall 121, second
The light-blocking side wall 123 of side wall 122, third and incident side wall 124, wherein the first light-blocking side wall 121, the second light-blocking side wall 122 and
Three light-blocking side walls 123 are referred to as light-blocking side wall.
First light-blocking side wall 121 therein is oppositely arranged with incident side wall 124, and the second light-blocking side wall 122 and third are light-blocking
Side wall 123 is oppositely arranged.
Ontology and four side walls form the cavity for accommodating light guide plate, and wherein incident side wall 124 corresponds to light guide plate
Incident side.In Fig. 1, incident side wall 124 is located at the lower side of drawing.Silica gel is provided on the inside of three light-blocking side walls
Item is not provided with the plastic frame for being held on light guide plate in backboard.The silica gel of the inside of first light-blocking side wall 121 is set
Item is known as the first silica gel strip 211, and the silica gel strip that the inside of the second light-blocking side wall 122 is arranged in is known as the second silica gel strip 212, setting
Silica gel strip in the inside of the light-blocking side wall 123 of third is known as third silica gel strip 213.In the present embodiment, the first silica gel strip, second
The color of silica gel strip and third silica gel strip is black, it will be understood that in other embodiments, the color of silica gel strip can also be
White or grey.In other embodiments, the color of three silica gel strips can be with difference, such as the first silica gel strip, the second silica gel
The color of item and third silica gel strip is respectively black, white and grey；Alternatively, the first silica gel strip be black, the second silica gel strip and
The color of third silica gel strip is grey.
Referring to Fig. 2, along the extending direction of the first light-blocking side wall 121, the first end face of the first end of the first silica gel strip 211
The 2112 outside medial surfaces 2122 more than the second silica gel strip 212, and the medial surface 2111 and the second silica gel strip of the first silica gel strip 211
There is the first gap S1 between the end face A2121 of 212 the first silica gel strip of direction.In the present embodiment, the first gap S1 is
0.4mm.It is appreciated that in other embodiments, first gap S1 can also be 0.2mm, 0.3mm or 0.5mm, certainly may be used
Think other sizes between 0.2-0.5mm.
Referring to Fig. 3, along the extending direction of the first light-blocking side wall 121, the second end face of the second end of the first silica gel strip 211
The 2113 outside medial surfaces 2132 more than third silica gel strip 213, and the medial surface 2111 of the first silica gel strip 211 and third silica gel strip
There is the second gap S2 between the end face B2131 of 213 the first silica gel strip of direction.In the present embodiment, the second gap S2 is
0.4mm.It is appreciated that in other embodiments, second gap S2 can also be 0.2mm, 0.3mm or 0.5mm, certainly may be used
Think other sizes between 0.2-0.5mm.
That is, the end face of one end of the first silica gel strip is outward more than the second silica gel strip along the extending direction of the first light-blocking side wall
Medial surface, the end face of the other end of the first silica gel strip is more than the medial surface of third silica gel strip outward.First silica gel strip and second
There is the first gap between silica gel strip, there is the second gap between the first silica gel strip and third silica gel strip.
In the present embodiment, it is 0.4mm that the first gap S1 is identical as the size of two gap S2, it will be understood that in other realities
It applies in example, the two can be different, for example, the first gap S1 is 0.5mm, the second gap S2 is 0.2mm.Alternatively, the first gap S1
It is 0.5mm for 0.3mm, the second gap S2.
Please refer to Fig. 2 and Fig. 3, the end face 2112 of the first end of the first silica gel strip 211 and the second light-blocking side wall 122 it
Between have third space S3, between the end face 2113 of the second end of the first silica gel strip 211 and the light-blocking side wall 123 of third have the 4th
Gap S4.In the present embodiment, third space S3 and the 4th gap S4 are 0.3mm, it will be understood that in other embodiments, two
Person can be different, for example, third space S3 is 0.5mm, the 4th gap S4 is 0.2mm.Alternatively, third space S3 is 0.4mm, the
Four gap S4 are 0.5mm.
In the present embodiment, the first silica gel strip 211, the second silica gel strip 212 and third silica gel strip 213 are a whole silicon
Adhesive tape, intermediate non junction.That is, being provided with one on each light-blocking side wall and being provided only with a silica gel strip.
In the present embodiment, adjacent two side of silica gel strip is bonded in ontology and light-blocking side wall through double-sided adhesive respectively
On.Illustratively illustrated with the second silica gel strip 212 below, referring to Fig. 4, the side of the second silica gel strip 212 first pair
Face glue 31 is bonded on the second light-blocking side wall 122, and the second double-sided adhesive of the other side 32 of the second silica gel strip 212 is bonded in ontology 11
On.Wherein the thickness H1 of the first double-sided adhesive 31 and and the thickness H2 of double-sided adhesive 32 is 0.10mm, it will be understood that in other realities
It applies in example, thickness H1 and thickness H2 can be with differences, for example, thickness H1 is 0.08mm, thickness H2 is 0.12mm；Or thickness H1
It is 0.15mm for 0.05mm, thickness H2.I.e. in the present embodiment, two sides of the second silica gel strip 212 are divided using double-sided adhesive
It is not fitted in completely on the second light-blocking side wall 122 and ontology 11.
In other embodiments, the second silica gel strip 212 can also be only bonded on ontology 11, and with the second light-blocking side wall without
Bonding or part adhesive, the soap-free emulsion polymeization or when only part adhesive between the second silica gel strip and the second light-blocking side wall, the second silica gel strip
Gap between the second light-blocking side wall has≤0.1mm no more than 0.1mm between i.e. the second silica gel strip and the second light-blocking wall
Gap.
First silica gel strip 211 has the structure similar with the second silica gel strip 212 with third silica gel strip 213, repeats no more.
In the present embodiment, the Shore A hardness of silica gel strip is 52 degree.It is understood that in other embodiments, Shao of silica gel strip
Family name A hardness can also other data between 45 degree, 50 degree or 55 degree or 45-55 degree.
Claims (10)
1. a kind of back light module unit structure, which is characterized in that including backboard, which includes ontology, at four edges of the ontology
Portion is provided with one side wall, and ontology and four side walls form the cavity for accommodating light guide plate, in four side walls, therein one
A side wall is formed as incident side wall, and excess-three side wall is formed as light-blocking side wall, and wherein incident side wall corresponds to entering for light guide plate
Light side is provided with silica gel strip on the inside of three light-blocking side walls, the modeling for being held on light guide plate is not provided in backboard
Glue frame.
2. back light module unit structure according to claim 1, which is characterized in that claim the light-blocking side wall opposite with incident side wall
For the first light-blocking side wall, the light-blocking side wall of another two is referred to as the second light-blocking side wall and the light-blocking side wall of third；It is arranged in first gear
The silica gel strip of the inside of light side wall is known as the first silica gel strip, and the silica gel strip that the inside of the second light-blocking side wall is arranged in is known as the second silicon
Adhesive tape, the silica gel strip that the inside of the light-blocking side wall of third is arranged in are known as third silica gel strip；
There is the first gap between first silica gel strip and the second silica gel strip, have second between the first silica gel strip and third silica gel strip
Gap；
There is third space between first silica gel strip and the second light-blocking side wall, have between the first silica gel strip and the light-blocking side wall of third
4th gap.
3. back light module unit structure according to claim 2, which is characterized in that along the extending direction of the first light-blocking side wall,
Outward more than the medial surface of the second silica gel strip, the end face of the other end of the first silica gel strip surpasses outward for the end face of one end of one silica gel strip
Cross the medial surface of third silica gel strip.
4. back light module unit structure according to claim 2, which is characterized in that the first gap is 0.2-0.5mm, the second gap
For 0.2-0.5mm, third space 0.2-0.5mm, the 4th gap is 0.2-0.5mm.
5. back light module unit structure according to claim 2, which is characterized in that
The color of first silica gel strip is white, grey or black；
The color of second silica gel strip is white, grey or black；
The color of third silica gel strip is white, grey or black.
6. back light module unit structure according to claim 1, which is characterized in that be provided with one on each light-blocking side wall
Item and it is provided only with a silica gel strip.
7. back light module unit structure according to claim 1, which is characterized in that the Shore A hardness of silica gel strip is 50 ± 5 degree.
8. back light module unit structure according to claim 1, which is characterized in that silica gel strip is bonded completely with ontology, and silica gel
Item is bonded completely with light-blocking side wall；Alternatively, silica gel strip is bonded completely with ontology, and have between silica gel strip and light-blocking side wall≤
The gap of 0.1mm.
9. back light module unit structure according to claim 1, which is characterized in that glue respectively adjacent two side of silica gel strip
It ties on ontology and light-blocking side wall.
10. back light module unit structure according to claim 1, which is characterized in that distinguish adjacent two side of silica gel strip
Through being bonded on ontology and light-blocking side wall with a thickness of the double-sided adhesive of 0.05-0.15mm thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910612825.1A CN110320708A (en) | 2019-07-09 | 2019-07-09 | A kind of back light module unit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910612825.1A CN110320708A (en) | 2019-07-09 | 2019-07-09 | A kind of back light module unit structure |
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| CN110320708A true CN110320708A (en) | 2019-10-11 |
Family
ID=68123073
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| CN201910612825.1A Pending CN110320708A (en) | 2019-07-09 | 2019-07-09 | A kind of back light module unit structure |
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| CN207380403U (en) * | 2017-11-21 | 2018-05-18 | 四川长虹电器股份有限公司 | Liquid crystal display module structure |
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Application publication date: 20191011 |