CN105676525A - Support structure, backlight module and method for preventing white spot phenomenon - Google Patents
Support structure, backlight module and method for preventing white spot phenomenon Download PDFInfo
- Publication number
- CN105676525A CN105676525A CN201610053716.7A CN201610053716A CN105676525A CN 105676525 A CN105676525 A CN 105676525A CN 201610053716 A CN201610053716 A CN 201610053716A CN 105676525 A CN105676525 A CN 105676525A
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- China
- Prior art keywords
- fixing portion
- light guiding
- guiding plate
- backboard
- magnet
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- 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.)
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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 invention relates to the technical field of liquid crystal display screens, and discloses a support structure, a backlight module and a method for preventing a white spot phenomenon. The support structure is arranged between a back plate and a light guide plate of a liquid crystal display screen and comprises a first fixed part, an elastic part and a second fixed part, wherein the first fixed part is fixed on the back plate; the second fixed part is fixed on the light guide plate; the elastic part is used for connecting the first fixed part with the second fixed part, so that the second fixed part can be away or close to the first fixed part. The backlight module comprises the light guide plate and the back plate, wherein a plurality of the support structures are arranged between the light guide plate and the back plate, so that the light guide plate can be driven by the second fixed part to move away or close to the back plate. The method for preventing the white spot phenomenon can be achieved by using the support structure and the backlight module. By adopting the support structure, the backlight module and the method for preventing the white spot phenomenon, the problem that a display screen has white spots can be solved.
Description
Technical field
The present invention relates to liquid crystal display technical field, particularly relate to a kind of method of supporting structure, the white phenomenon of backlight module and prevention top.
Background technology
Important feature in liquid crystal display is light guiding plate. Light guiding plate be by the hitech materials that there is pole high-reflectivity and do not inhale light by UV screen printing technology, the bottom surface of the acrylic sheet material of optical grade prints light guiding points and makes.
Light guiding plate utilizes optical grade acrylic sheet material to draw the light sent from lamp, make it in the stop of optical grade acrylic plate surface, when light is mapped to each light guiding points, reflected light can spread to all angles, then conditioned reflex is destroyed, and penetrate by light guiding plate front, then by various density, light guiding points not of uniform size, make light guiding plate uniformly light-emitting.
In use easily there is the phenomenon that backlight top is white in liquid crystal display structure of the prior art, and in addition, in backlight vibrations experiment, light guiding plate is easily scratched and causes picture white point. At present, ways of addressing this issue is generally strict management and control foreign matter or improves the Flatness of backboard, but the level of the removing of foreign matter and backboard is difficult to realize, and causes light guiding plate to there is the risk being drawn wound by backboard or foreign matter all the time.
Summary of the invention
(1) technical problem solved
It is an object of the invention to provide a kind of method of supporting structure, the white phenomenon of backlight module and prevention top, by increasing supporting structure between light guiding plate and backboard, when not being energized, make between light guiding plate and backboard, to there is certain gap, prevent light guiding plate to be hindered by backboard; When being energized, make not exist between light guiding plate and backboard gap, thus solve the problem that hickie occurs in display screen.
(2) technical scheme
In order to solve the problems of the technologies described above, the present invention provides a kind of method of supporting structure, the white phenomenon of backlight module and prevention top.
A kind of supporting structure, it is arranged between the backboard of liquid crystal display and light guiding plate, comprise the first fixing portion, elasticity part and the 2nd fixing portion, described first fixing portion is fixed on described backboard, described 2nd fixing portion is fixed on described light guiding plate, described elasticity part connects the described first fixing portion and the described 2nd fixing portion, make the described 2nd fixing portion can away from or near the described first fixing portion.
Further, the aforementioned 2nd fixing portion comprises magneticmetal sheet, and the described first fixing portion comprises electro-magnet, and described electro-magnet passes through wire connecting power; Described elasticity part is spring.
Further, the aforementioned 2nd fixing portion also comprises silicagel pad, and described silicagel pad is arranged between described magneticmetal sheet and described light guiding plate.
A kind of backlight module, comprise light guiding plate and backboard, multiple supporting structure it is provided with between described light guiding plate and described backboard, described supporting structure comprises the first fixing portion, elasticity part and the 2nd fixing portion, described first fixing portion is fixed on described backboard, described 2nd fixing portion is fixed on described light guiding plate, and described elasticity part connects the described first fixing portion and the described 2nd fixing portion, make the described 2nd fixing portion can drive described light guiding plate away from or near described backboard.
Further, each described 2nd fixing portion is evenly arranged along the surrounding of described light guiding plate, and each described first fixing portion and the described 2nd fixing portion are arranged at the surrounding of described backboard one to one.
Further, each described 2nd fixing portion is uniformly distributed in matrix on described light guiding plate, and each described first fixing portion and the described 2nd fixing portion are arranged on described backboard one to one.
Further, aforementioned backboard is respectively equipped with to the oppositely protruding accommodation groove of described light guiding plate corresponding to the position in the described in each first fixing portion, the described first fixing portion is fixed on the bottom surface of corresponding described accommodation groove.
Further, aforementioned first fixing portion comprises magneticmetal sheet and silicagel pad, and described magneticmetal sheet is fixed on described catheter plate by described silicagel pad, and the described 2nd fixing portion is electro-magnet, described electro-magnet is connected power supply by wire, and described wire is through the bottom surface of described accommodation groove; Described elasticity part is spring.
Prevent to push up a method for white phenomenon, comprise the steps:
S1, gap is set between the light guiding plate and backboard of liquid crystal display, gap is installed supporting structure, described supporting structure comprises the be fixed on described backboard first fixing portion, fixing portion of being fixed on the 2nd on described light guiding plate, connect described first fixing portion and the described 2nd fixing portion elasticity part;
S2, the described 2nd fixing portion drive described light guiding plate away from described backboard, make to keep gap between described backboard and described light guiding plate, prevent described light guiding plate to be scratched;
S3, the described 2nd fixing portion drive described light guiding plate near described backboard, make described light guiding plate and the laminating of described backboard, liquid crystal display is normally shown.
Further, the aforementioned first fixing portion is electro-magnet, and the described 2nd fixing portion is magneticmetal sheet, described elasticity part is spring, when described electro-magnet is not energized, the reactive force of described spring makes described magneticmetal sheet away from described electro-magnet, thus makes described light guiding plate away from described backboard; When described electro-magnet is energized, described magneticmetal sheet overcomes the reactive force of described spring, near described electro-magnet, thus makes described light guiding plate and the laminating of described backboard.
(3) useful effect
A kind of supporting structure provided by the invention, it is arranged between the backboard of liquid crystal display and light guiding plate, elasticity part is adopted to be connected in the fixing portion of first on backboard and be arranged at the fixing portion of the 2nd on light guiding plate, make the 2nd fixing portion can away from or near the first fixing portion, the structure of this supporting structure is simple, be convenient to installation and removal, and can make to there is between backboard and light guiding plate gap or fit completely, thus solve the problem that light guiding plate top is white.
A kind of backlight module provided by the invention, comprises light guiding plate and backboard, is provided with multiple supporting structure between light guiding plate and backboard, make light guiding plate can away from or near backboard motion.In transportation or in vibrations experiment, make between light guiding plate and backboard, to there is certain gap, avoid backboard local protuberance to be caused in light guide plate mesh point face and draw wound, it is possible to avoid foreign matter to enter and between light guiding plate and backboard, cause a stroke wound; Time under liquid crystal display normal service condition, light guiding plate and backboard are fitted completely, ensure that picture normally shows, solve the problem that light guiding plate top is white.
A kind of method preventing to push up white phenomenon provided by the invention, between the light guiding plate and backboard of liquid crystal display, gap is set, gap is installed supporting structure, under the cold state of liquid crystal display, 2nd fixing portion drives light guiding plate away from backboard, make to keep between backboard and light guiding plate gap, prevent light guiding plate to be scratched; When liquid crystal display is energized, the 2nd fixing portion drives light guiding plate near backboard, makes light guiding plate and backboard laminating, liquid crystal display is normally shown; Thus prevent light guiding plate from the phenomenon that top is white occurring, and then prevent liquid crystal display from hickie occurring in display.
Accompanying drawing explanation
Fig. 1 is the schematic diagram in the non-energising situation of supporting structure of the present invention;
Fig. 2 is the schematic diagram in the energising situation of supporting structure of the present invention;
Fig. 3 is the structural representation of mesonotal shield of the present invention;
Fig. 4 is the enlarged view in A portion in Fig. 3.
In figure, 1: backboard; 2: light guiding plate; 3: electro-magnet; 4: magneticmetal sheet; 5: silicagel pad; 6: spring; 7: hold groove; 8: wire; 9: gap.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail. Following instance is for illustration of the present invention, but is not used for limiting the scope of the invention.
Embodiment one
As shown in Figure 1, a kind of supporting structure that the present embodiment provides, it is arranged between the backboard 1 of liquid crystal display and light guiding plate 2, comprise the first fixing portion, elasticity part and the 2nd fixing portion, first fixing portion is fixed on backboard 1,2nd fixing portion is fixed on light guiding plate 2, and elasticity part connects the first fixing portion and the 2nd fixing portion, make the 2nd fixing portion can away from or near the first fixing portion.
2nd fixing portion comprises magneticmetal sheet 4, and in the present embodiment, magneticmetal sheet 4 is preferably iron sheet, and the first fixing portion comprises electro-magnet 3, and electro-magnet 3 connects power supply by wire 8, elasticity part is spring 6. when electro-magnet 3 is not energized, the reactive force of spring 6 makes iron sheet away from electro-magnet 3, when electro-magnet 3 is energized, the magnetic force of electro-magnet 3 drives iron sheet to overcome the reactive force of spring 6, and iron sheet is moved to the direction of electro-magnet 3. in addition, except the iron sheet of the present embodiment offer and the scheme of electro-magnet 3, first fixing portion can be electro-magnet 3, 2nd fixing portion can be any other magneticmetal sheet 4, such as by cobalt, the tinsel that the metal such as nickel or lanthanon is made, when electro-magnet 3 is energized, suction is produced with magneticmetal sheet 4, when electro-magnet 3 is not energized, spring 6 make electro-magnet 3 and magneticmetal sheet 4 away from, in a word, the concrete material in the first fixing portion and the 2nd fixing portion, as long as first fixes portion and the 2nd fixing portion overcomes spring 6 elastic force and close when can realize energising, when not being energized spring 6 elastic force make the first fixing portion and the 2nd fixing portion away from function.
2nd fixing portion also comprises silicagel pad 5, and silicagel pad 5 is arranged between magneticmetal sheet 4 and light guiding plate 2, magneticmetal sheet 4 and light guiding plate 2 is isolated, and prevents magneticmetal sheet 4 strokes to hinder light guiding plate 2.It should be noted that, except the present embodiment provide silicagel pad 5 except, light guiding plate 2 can be played a protective role and can not affect the material of the magnetic property of magneticmetal sheet 4 by other, all can substituted for silicon rubber cushion 5, be arranged between magneticmetal sheet 4 and light guiding plate 2.
Embodiment two
A kind of backlight module that the present embodiment provides, comprise light guiding plate 2 and backboard 1, multiple supporting structure it is provided with between light guiding plate 2 and backboard 1, supporting structure comprises the first fixing portion, elasticity part and the 2nd fixing portion, first fixing portion is fixed on backboard 1,2nd fixing portion is fixed on light guiding plate 2, and elasticity part connects the first fixing portion and the 2nd fixing portion, make the 2nd fixing portion can drive light guiding plate 2 away from or near backboard 1. As shown in Figure 1, catheter plate is in transportation or in vibrations experiment, make between light guiding plate 2 and backboard 1, to there is certain gap 9, avoid backboard 1 local protuberance to be caused by light guiding plate 2 dot surface and draw wound, it is possible to avoid foreign matter to enter and between light guiding plate 2 and backboard 1, cause a stroke wound; As shown in Figure 2, time under liquid crystal display normal service condition, light guiding plate 2 and backboard 1 are fitted completely, ensure that picture normally shows, solve light guiding plate 2 and push up white problem.
Wherein, the first fixing portion and the 2nd fixing portion distributed architecture on backboard 1 and light guiding plate 2 has multiple, comprising: each 2nd fixing portion is evenly arranged along the surrounding of light guiding plate 2, and each first fixing portion and the 2nd fixing portion are arranged at the surrounding of backboard 1 one to one; Each 2nd fixing portion is uniformly distributed in matrix on light guiding plate 2, and each first fixing portion and the 2nd fixing portion are arranged on backboard 1 one to one. It should be noted that, the decoration form in the first fixing portion and the 2nd fixing portion is not two kinds enumerated in the present embodiment, and any other combination or spread pattern, all belong to the scope that the present embodiment is protected.
As shown in Figure 3, backboard 1 is respectively equipped with to the reverse protruding accommodation groove 7 of light guiding plate 2 corresponding to the position in each the first fixing portion, first fixing portion is fixed on the bottom surface of corresponding accommodation groove 7, owing to the first fixing portion has certain altitude, therefore it is positioned over and is held in groove 7, prevent from light guiding plate 2 to be received groove 7 to damage, in addition, the degree of depth holding groove 7 should be greater than the first fixing portion and the height sum in the 2nd fixing portion, make the first fixing portion when the 2nd fixing portion, light guiding plate 2 and backboard 1 can be fitted completely, ensure the normal display of liquid crystal display.
First fixing portion comprises magneticmetal sheet 4 and silicagel pad 5, and magneticmetal sheet 4 is fixed on catheter plate by silicagel pad 5, and the 2nd fixing portion is electro-magnet 3, and electro-magnet 3 is connected power supply by wire 8, and as shown in Figure 4, wire 8 is through the bottom surface holding groove 7; Elasticity part is spring 6. When electro-magnet 3 is not energized, the reactive force of spring 6 makes magneticmetal sheet 4 away from electro-magnet 3, thus make light guiding plate 2 away from backboard 1, gap 9 is produced between light guiding plate 2 and backboard 1, avoid backboard 1 local protuberance to be caused by light guiding plate 2 dot surface and draw wound, it is possible to avoid obligation to enter and between light guiding plate 2 and backboard 1, cause a stroke wound; When electro-magnet 3 is energized, magneticmetal sheet 4 overcomes the reactive force of spring 6, near electro-magnet 3, thus light guiding plate 2 and backboard 1 is fitted, ensures the normal display of liquid crystal display.
Embodiment three
A kind of method preventing to push up white phenomenon that the present embodiment provides, comprises the steps:
S1, gap 9 is set between the light guiding plate 2 and backboard 1 of liquid crystal display, supporting structure is installed in gap 9, supporting structure comprises the be fixed on backboard 1 first fixing portion, fixing portion of being fixed on the 2nd on light guiding plate 2, connect first fixing portion and the 2nd fixing portion elasticity part;
S2, in transport or experimentation, the 2nd fixing portion drives light guiding plate 2 away from backboard 1, makes to keep between backboard 1 and light guiding plate 2 gap 9, prevents light guiding plate 2 to be scratched, and prevents from entering foreign matter between light guiding plate 2 and backboard 1, thus draws and hinder light guiding plate 2;
S3, in the normal use procedure of liquid crystal display, the 2nd fixing portion drives light guiding plate 2 near backboard 1, light guiding plate 2 and backboard 1 is fitted, liquid crystal display is normally shown.
In the present embodiment, the first fixing portion is electro-magnet 3, and the 2nd fixing portion is magneticmetal sheet 4, and elasticity part is spring 6, and when electro-magnet 3 is not energized, the reactive force of spring 6 makes magneticmetal sheet 4 away from electro-magnet 3, thus makes light guiding plate 2 away from backboard 1; When electro-magnet 3 is energized, magneticmetal sheet 4 overcomes the reactive force of spring 6, near electro-magnet 3, thus light guiding plate 2 and backboard 1 is fitted.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a supporting structure, it is arranged between the backboard of liquid crystal display and light guiding plate, it is characterized in that, comprise the first fixing portion, elasticity part and the 2nd fixing portion, described first fixing portion is fixed on described backboard, described 2nd fixing portion is fixed on described light guiding plate, and described elasticity part connects the described first fixing portion and the described 2nd fixing portion, make the described 2nd fixing portion can away from or near the described first fixing portion.
2. supporting structure as claimed in claim 1, it is characterised in that, the described 2nd fixing portion comprises magnetic core tinsel, and the described first fixing portion comprises electro-magnet, and described electro-magnet passes through wire connecting power; Described elasticity part is spring.
3. supporting structure as claimed in claim 2, it is characterised in that, the described 2nd fixing portion also comprises silicagel pad, and described silicagel pad is arranged between described magneticmetal sheet and described light guiding plate.
4. a backlight module, it is characterized in that, comprise light guiding plate and backboard, multiple supporting structure it is provided with between described light guiding plate and described backboard, described supporting structure comprises the first fixing portion, elasticity part and the 2nd fixing portion, and the described first fixing portion is fixed on described backboard, and the described 2nd fixing portion is fixed on described light guiding plate, described elasticity part connects the described first fixing portion and the described 2nd fixing portion, make the described 2nd fixing portion can drive described light guiding plate away from or near described backboard.
5. backlight module as claimed in claim 4, it is characterised in that, each described 2nd fixing portion is evenly arranged along the surrounding of described light guiding plate, and each described first fixing portion and the described 2nd fixing portion are arranged at the surrounding of described backboard one to one.
6. backlight module as claimed in claim 4, it is characterised in that, each described 2nd fixing portion is uniformly distributed in matrix on described light guiding plate, and each described first fixing portion and the described 2nd fixing portion are arranged on described backboard one to one.
7. backlight module as described in item as arbitrary in claim 4-6, it is characterized in that, being respectively equipped with to the oppositely protruding accommodation groove of described light guiding plate corresponding to the position in the described in each first fixing portion on described backboard, the described first fixing portion is fixed on the bottom surface of corresponding described accommodation groove.
8. backlight module as claimed in claim 7, it is characterized in that, described first fixing portion comprises magneticmetal sheet and silicagel pad, described magneticmetal sheet is fixed on described catheter plate by described silicagel pad, described 2nd fixing portion is electro-magnet, described electro-magnet is connected power supply by wire, and described wire is through the bottom surface of described accommodation groove; Described elasticity part is spring.
9. one kind is prevented to push up the method for white phenomenon, it is characterised in that, comprise the steps:
S1, gap is set between the light guiding plate and backboard of liquid crystal display, gap is installed supporting structure, described supporting structure comprises the be fixed on described backboard first fixing portion, fixing portion of being fixed on the 2nd on described light guiding plate, connect described first fixing portion and the described 2nd fixing portion elasticity part;
S2, the described 2nd fixing portion drive described light guiding plate away from described backboard, make to keep gap between described backboard and described light guiding plate, prevent described light guiding plate to be scratched;
S3, the described 2nd fixing portion drive described light guiding plate near described backboard, make described light guiding plate and the laminating of described backboard, liquid crystal display is normally shown.
10. the method for the white phenomenon in prevention top as claimed in claim 9, it is characterized in that, described first fixing portion is electro-magnet, described 2nd fixing portion is magneticmetal sheet, described elasticity part is spring, when described electro-magnet is not energized, the reactive force of described spring makes described magneticmetal sheet away from described electro-magnet, thus makes described light guiding plate away from described backboard; When described electro-magnet is energized, described magneticmetal sheet overcomes the reactive force of described spring, near described electro-magnet, thus makes described light guiding plate and the laminating of described backboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053716.7A CN105676525B (en) | 2016-01-27 | 2016-01-27 | A kind of method that white phenomenon is pushed up in support construction, backlight module and prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053716.7A CN105676525B (en) | 2016-01-27 | 2016-01-27 | A kind of method that white phenomenon is pushed up in support construction, backlight module and prevention |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105676525A true CN105676525A (en) | 2016-06-15 |
| CN105676525B CN105676525B (en) | 2019-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610053716.7A Expired - Fee Related CN105676525B (en) | 2016-01-27 | 2016-01-27 | A kind of method that white phenomenon is pushed up in support construction, backlight module and prevention |
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| Country | Link |
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| CN (1) | CN105676525B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106773311A (en) * | 2017-01-05 | 2017-05-31 | 京东方科技集团股份有限公司 | For the support frame in backlight module, backlight module and display device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105676525B (en) | 2019-05-10 |
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