CN104297975A - Backlight module and positioning structure thereof - Google Patents
Backlight module and positioning structure thereof Download PDFInfo
- Publication number
- CN104297975A CN104297975A CN201410524448.3A CN201410524448A CN104297975A CN 104297975 A CN104297975 A CN 104297975A CN 201410524448 A CN201410524448 A CN 201410524448A CN 104297975 A CN104297975 A CN 104297975A
- Authority
- CN
- China
- Prior art keywords
- pilot hole
- positioning
- backlight module
- light guide
- guide plate
- 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
- G02F1/1335—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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a backlight module and a positioning structure thereof. The positioning structure is suitable for positioning a light guide plate. The positioning structure comprises an L-shaped positioning piece which is provided with a first positioning hole and a second positioning hole spaced from the first positioning hole by a preset distance, and an open part which is located on the sidewall of the L-shaped positioning piece, wherein the position of the open part corresponds to a region between the two positioning holes. The positioning column of a back plate goes through the first positioning hole and the second positioning hole to fix the L-shaped positioning piece, and the open part is clamped on the lug of a light guide plate. Compared with the prior art, the positioning structure is convenient for positioning and assembling because the positioning holes are matched with the positioning column to fix on the L-shaped positioning piece on the back plate and the open part on the sidewall of the L-shaped positioning piece is used for limiting the body displacement and the moisture absorption swelling amount of the light guide plate. Besides, the positioning structure is lower in influence on the light path of the light guide plate than a traditional positioning mechanism, and therefore, the optical properties of the light guide plate can be improved.
Description
Technical field
The present invention relates to a kind of package technique of liquid crystal indicator, particularly relate to and a kind ofly realize the backlight module of narrow frame design and the location structure for this backlight module.
Background technology
Liquid crystal display (Liquid Crystal Display, LCD) has high image quality, volume is little, lightweight.The advantages such as low voltage drive, low consumpting power and applied range, therefore be widely used in Portable TV, mobile phone, shoot with video-corder in the consumer electronics such as projector, notebook computer and desktop displays or computer product, become the main flow of display.Traditional liquid crystal display framework mainly comprises housing, liquid crystal panel, circuit board and backlight module.Liquid crystal panel is electrically connected through flexible printed wiring board (Flexible Printed Circuit, FPC) and circuit board.Development trend due to present liquid crystal display is frivolous trend, and therefore the frame of liquid crystal display is also more and more thinner.
In order to reach the lightening and light-weighted object of liquid crystal display, be that outward appearance or inner member all need suitable adjustment or improvement, in the hope of playing identical even better effect under limited volume or space.For LCD TV, if existing TV frame (boarder) design is wider, then the locator meams of backlight module is relatively easy, and utilizing the hangers of light guide plate (Light Guide Panel, LGP) to avoid light path and locating light guide plate by Pin has enough spaces.But, because narrow frame design trend is more by the favor of user, often cause the swell increment deficiency of light guide plate maybe cannot use Pin location mechanism.In addition, more sharply during assembling, light guide plate and Pin easily occur touching scratch, affect the optical property of light guide plate.
In view of this, how designing a kind of location structure of the light guide plate for backlight module, thus eliminate above-mentioned defect of the prior art or deficiency, is the problem that person skilled is urgently to be resolved hurrily in the industry.
Summary of the invention
For the assembling light guiding plate of backlight module of the prior art in response to above-mentioned defect existing during narrow frame design, the invention provides a kind of backlight module of novelty and the location structure for this backlight module.
According to one aspect of the present invention, provide a kind of location structure for backlight module, be suitable for positioning light guide plate (Light Guide Panel, LGP), wherein said location structure comprises a L-type keeper, and this L-type keeper has:
One first pilot hole, is positioned at the bottom surface of described L-type keeper;
One second pilot hole, is positioned at the bottom surface of described L-type keeper, and described second pilot hole and described first pilot hole have a preset pitch; And
One peristome, is positioned at the sidewall of described L-type keeper, and the position of described peristome corresponds to the region between described first pilot hole and described second pilot hole,
Wherein, the reference column of backboard wears described first pilot hole and described second pilot hole with fixing described L-type keeper, and described peristome is sticked in the projection of light guide plate.
An embodiment wherein, described first pilot hole and described second pilot hole parallel to each other.
An embodiment wherein, described first pilot hole and described second pilot hole are the slotted hole of racetrack.
An embodiment wherein, the backboard side wall of described backlight module has an opening, and the width of described opening is more than or equal to the width of described L-type keeper.
An embodiment wherein, described first pilot hole and described second pilot hole and described reference column are wringing fit, and the aperture of described first pilot hole is less than the diameter of described reference column.
According to another aspect of the present invention, provide a kind of backlight module, comprise a backboard and a light guide plate, wherein, described light guide plate is fixed to described backboard by a L-type keeper, and this L-type keeper has:
One first pilot hole, is positioned at the bottom surface of described L-type keeper;
One second pilot hole, is positioned at the bottom surface of described L-type keeper, and described second pilot hole and described first pilot hole have a preset pitch; And
One peristome, is positioned at the sidewall of described L-type keeper, and the position of described peristome corresponds to the region between described first pilot hole and described second pilot hole,
Wherein, the reference column of described backboard wears described first pilot hole and described second pilot hole with fixing described L-type keeper, and described peristome is sticked in the projection of described light guide plate.
An embodiment wherein, described first pilot hole and described second pilot hole parallel to each other.
An embodiment wherein, described first pilot hole and described second pilot hole are the slotted hole of racetrack.
An embodiment wherein, the backboard side wall of described backlight module has an opening, and the width of described opening is more than or equal to the width of described L-type keeper.
An embodiment wherein, described first pilot hole and described second pilot hole and described reference column are wringing fit, and the aperture of described first pilot hole is less than the diameter of described reference column.
Adopt backlight module of the present invention and location structure thereof, first pilot hole and second pilot hole of L-type keeper are all arranged at its bottom surface, second pilot hole and the first pilot hole have a preset pitch, the opening of L-type keeper is in its sidewall, and the position of peristome corresponds to the region between the first pilot hole and the second pilot hole, the reference column of backboard wears the first pilot hole and the second pilot hole with fixed L type keeper, and peristome is sticked in the projection of light guide plate.Compared to prior art, location structure of the present invention utilizes pilot hole to coordinate with the hole post of reference column L-type keeper is fixed on backboard, and utilize the peristome of L-type keeper sidewall to limit body displacement and the moisture expantion amount of light guide plate, to realize the convenience of positioning form and assembling.In addition, the light path impact of this location structure on light guide plate is less compared to traditional Pin location mechanism, thus can improve the optical property of light guide plate.
Accompanying drawing explanation
Reader, after having read the specific embodiment of the present invention with reference to accompanying drawing, will become apparent various aspects of the present invention.Wherein,
Figure 1A illustrates the view of a kind of backlight module of the prior art before thermal expansion and moisture expantion;
Figure 1B illustrates the view of the backlight module of Figure 1A after thermal expansion and moisture expantion;
Fig. 1 C illustrates the schematic diagram that the backlight module of Figure 1A utilizes Pin location mechanism and positions light guide plate; And
Fig. 2 illustrates according to one embodiment of the present invention, for the schematic diagram of the location structure of backlight module.
Embodiment
The technology contents disclosed to make the application is more detailed and complete, and can refer to accompanying drawing and following various specific embodiment of the present invention, mark identical in accompanying drawing represents same or analogous assembly.But those of ordinary skill in the art should be appreciated that hereinafter provided embodiment is not used for limiting the scope that contains of the present invention.In addition, accompanying drawing, only for being schematically illustrated, is not drawn according to its life size.
With reference to the accompanying drawings, the embodiment of various aspects of the present invention is described in further detail.
Figure 1A illustrates the view of a kind of backlight module of the prior art before thermal expansion and moisture expantion.Figure 1B illustrates the view of the backlight module of Figure 1A after thermal expansion and moisture expantion.Fig. 1 C illustrates the schematic diagram that the backlight module of Figure 1A utilizes Pin location mechanism and positions light guide plate.
With reference to Figure 1A, frame 100 (Front Bezel), a backboard 102 (Back Bezel) and a light guide plate (Light Guide Panel) 104 before existing backlight module comprises one.Light guide plate 104 is arranged at the top of backboard 102, and multiple stacked bloomings 106 are positioned at the top of light guide plate 104.In addition, the spacing between the right side edge of light guide plate 104 and the side wall of backboard 102 is d1.Due to the thermal expansion of light guide plate and the impact of moisture expantion, the right side edge of light guide plate 104 can side wall gradually to backlight 102 close, the spacing at this moment between light guide plate 104 and backboard is d2 (as shown in Figure 1B) from d1 constriction.Meanwhile, light guide plate cannot design geometric properties to play a supporting role because frame narrows.
In fig. 1 c, light guide plate 104 is fixed to backboard by location pin by existing backlight module.Because the size of light guide plate is comparatively large relative to the size of location pin, make the intensity of locating pin more weak.In addition, the assembly precision of this location mechanism is higher, if assembling contraposition is forbidden, will easily cause light guide plate 104 to occur touching scratch with location pin, and then affects the optical property of light guide plate.
Fig. 2 illustrates according to one embodiment of the present invention, for the schematic diagram of the location structure of backlight module.With reference to Fig. 2, in this embodiment, the location structure for backlight module of the present invention comprises a L-type keeper 2.Wherein, this L-type keeper 2 has one first pilot hole 221,1 second pilot hole 223 and a peristome 242.
Specifically, this L-type keeper 2 has bottom surface 22 and a sidewall 24 perpendicular to one another.Wherein, the first pilot hole 221 and the second pilot hole 223 are arranged on the bottom surface 22 of L-type keeper 2.Between first pilot hole 221 and the second pilot hole 223, there is a preset pitch.Such as, the first pilot hole 221 and the second pilot hole 223 parallel to each other.Preferably, the first pilot hole 221 and the second pilot hole 223 are the slotted hole of racetrack.
Peristome 242 is positioned at the sidewall 24 of L-type keeper 2, and the position of peristome 242 corresponds to the region between the first pilot hole 221 and the second pilot hole 223.Reference column P1 and P2 of backboard wears the first pilot hole 221 and the second pilot hole 223 respectively with fixed L type keeper, and peristome 242 is sticked in the projection of light guide plate, by L-type keeper movement thus drive light guide plate to be slided on backboard.
At a specific embodiment, the backboard side wall 3 of backlight module has an opening 32, and the width of this opening 32 is wide compared with the width of L-type keeper 2, to avoid L-type keeper 2 when mobile, produces interfere with the side wall 3 of backboard.
At a specific embodiment, the first pilot hole 221 and the second pilot hole 223 are wringing fit with reference column P1 and P2, and the aperture of the first pilot hole 221 is less than the diameter of reference column P1.
Adopt backlight module of the present invention and location structure thereof, first pilot hole and second pilot hole of L-type keeper are all arranged at its bottom surface, second pilot hole and the first pilot hole have a preset pitch, the opening of L-type keeper is in its sidewall, and the position of peristome corresponds to the region between the first pilot hole and the second pilot hole, the reference column of backboard wears the first pilot hole and the second pilot hole with fixed L type keeper, and peristome is sticked in the projection of light guide plate.Compared to prior art, location structure of the present invention utilizes pilot hole to coordinate with the hole post of reference column L-type keeper is fixed on backboard, and utilize the peristome of L-type keeper sidewall to limit body displacement and the moisture expantion amount of light guide plate, to realize the convenience of positioning form and assembling.In addition, the light path impact of this location structure on light guide plate is less compared to traditional Pin location mechanism, thus can improve the optical property of light guide plate.
Above, the specific embodiment of the present invention is described with reference to the accompanying drawings.But those skilled in the art can understand, when without departing from the spirit and scope of the present invention, various change and replacement can also be done to the specific embodiment of the present invention.These change and replace and all drop in claims of the present invention limited range.
Claims (10)
1. for a location structure for backlight module, be suitable for positioning light guide plate, it is characterized in that, described location structure comprises a L-type keeper, and this L-type keeper has:
One first pilot hole, is positioned at the bottom surface of described L-type keeper;
One second pilot hole, is positioned at the bottom surface of described L-type keeper, and described second pilot hole and described first pilot hole have a preset pitch; And
One peristome, is positioned at the sidewall of described L-type keeper, and the position of described peristome corresponds to the region between described first pilot hole and described second pilot hole,
Wherein, the reference column of backboard wears described first pilot hole and described second pilot hole with fixing described L-type keeper, and described peristome is sticked in the projection of light guide plate.
2. the location structure for backlight module according to claim 1, is characterized in that, described first pilot hole and described second pilot hole parallel to each other.
3. the location structure for backlight module according to claim 2, is characterized in that, described first pilot hole and described second pilot hole are the slotted hole of racetrack.
4. the location structure for backlight module according to claim 1, is characterized in that, the backboard side wall of described backlight module has an opening, and the width of described opening is more than or equal to the width of described L-type keeper.
5. the location structure for backlight module according to claim 1, is characterized in that, described first pilot hole and described second pilot hole and described reference column are wringing fit, and the aperture of described first pilot hole is less than the diameter of described reference column.
6. a backlight module, comprises a backboard and a light guide plate, it is characterized in that, described light guide plate is fixed to described backboard by a L-type keeper, and this L-type keeper has:
One first pilot hole, is positioned at the bottom surface of described L-type keeper;
One second pilot hole, is positioned at the bottom surface of described L-type keeper, and described second pilot hole and described first pilot hole have a preset pitch; And
One peristome, is positioned at the sidewall of described L-type keeper, and the position of described peristome corresponds to the region between described first pilot hole and described second pilot hole,
Wherein, the reference column of described backboard wears described first pilot hole and described second pilot hole with fixing described L-type keeper, and described peristome is sticked in the projection of described light guide plate.
7. backlight module according to claim 6, is characterized in that, described first pilot hole and described second pilot hole parallel to each other.
8. backlight module according to claim 7, is characterized in that, described first pilot hole and described second pilot hole are the slotted hole of racetrack.
9. backlight module according to claim 6, is characterized in that, the backboard side wall of described backlight module has an opening, and the width of described opening is more than or equal to the width of described L-type keeper.
10. backlight module according to claim 6, is characterized in that, described first pilot hole and described second pilot hole and described reference column are wringing fit, and the aperture of described first pilot hole is less than the diameter of described reference column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410524448.3A CN104297975A (en) | 2014-10-08 | 2014-10-08 | Backlight module and positioning structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410524448.3A CN104297975A (en) | 2014-10-08 | 2014-10-08 | Backlight module and positioning structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104297975A true CN104297975A (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410524448.3A Pending CN104297975A (en) | 2014-10-08 | 2014-10-08 | Backlight module and positioning structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104297975A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807486A (en) * | 2016-03-10 | 2016-07-27 | 青岛海信电器股份有限公司 | Edge-lit backlight module and display device |
| CN106200076A (en) * | 2016-08-30 | 2016-12-07 | 福建联迪商用设备有限公司 | A kind of liquid crystal module location structure |
-
2014
- 2014-10-08 CN CN201410524448.3A patent/CN104297975A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807486A (en) * | 2016-03-10 | 2016-07-27 | 青岛海信电器股份有限公司 | Edge-lit backlight module and display device |
| CN105807486B (en) * | 2016-03-10 | 2019-09-13 | 青岛海信电器股份有限公司 | A kind of side entrance back module and display device |
| CN106200076A (en) * | 2016-08-30 | 2016-12-07 | 福建联迪商用设备有限公司 | A kind of liquid crystal module location structure |
| CN106200076B (en) * | 2016-08-30 | 2019-11-08 | 福建联迪商用设备有限公司 | A kind of liquid crystal module location structure |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150121 |
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| WD01 | Invention patent application deemed withdrawn after publication |