CN204922706U - Backlight unit and liquid crystal disply device - Google Patents
Backlight unit and liquid crystal disply device Download PDFInfo
- Publication number
- CN204922706U CN204922706U CN201520717450.2U CN201520717450U CN204922706U CN 204922706 U CN204922706 U CN 204922706U CN 201520717450 U CN201520717450 U CN 201520717450U CN 204922706 U CN204922706 U CN 204922706U
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- CN
- China
- Prior art keywords
- light guide
- guide plate
- backlight module
- locating groove
- backboard
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims description 5
- 210000002421 cell wall Anatomy 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a backlight module, backlight unit includes the light guide plate, and is used for fixing the backplate of light guide plate, be equipped with at least one lug structure on the side of light guide plate, it is provided with at least one positioning channel section to correspond on the side of backplate, positioning channel section does clearance on the backplate between a pair of locating ear piece, at least one lug structure joint in correspondence among the positioning channel section, wherein, the flexible cover of a locating ear overcoat. The utility model provides a lug structure cracked problem easily takes place, avoided the vibration to lead to the fact the damage with assaulting to the lug structure, improved location structure's location precision. The utility model also discloses a liquid crystal disply device of containing this backlight unit.
Description
Technical field
The utility model relates to technical field of liquid crystal display, particularly relates to a kind of backlight module and liquid crystal indicator.
Background technology
Backlight module is the important composition of liquid crystal indicator, backlight module is arranged at the back side of display panels, in order to provide a homodisperse light on display panels, the image that the pixel electrode by controlling on display panels is formed is uniformly lighted and obtains display.
As shown in Figure 1, in the backlight module of the positive prescription formula of existing employing, the location structure of light guide plate comprises backboard 1 and the light guide plate 2 be positioned on backboard 1, wherein, the side of above-mentioned light guide plate 2 is provided with at least one ledge arrangement 3, the side of backboard 1 corresponds at least one ledge arrangement 3 place, is provided with locating groove 4, this locating groove 4 is the gap on backboard 1 between a pair location ear 5, and at least one ledge arrangement 3 is connected in locating groove 4.But in said structure, the material of location ear 5 is metal, when the gap between the ear 5 of location is less, ledge arrangement 3 is directly inconsistent with location ear 5, and ledge arrangement 3 expanded by heating insufficient space, easily causes ledge arrangement 3 be squeezed and rupture; When gap between the ear 5 of location is larger, be unfavorable for location assembling, cause light guide plate 2 assembling displacement larger, and in the process of carrying, use, the impact force of backboard 1 pair of ledge arrangement 3 is large, ledge arrangement 3 corner has the phenomenon that obvious stress is concentrated, and easily causes ledge arrangement 3 corner to rupture.
Utility model content
In view of this, the purpose of this utility model proposes a kind of backlight module and liquid crystal indicator, to solve the problem that ledge arrangement easily occurs to rupture, avoids vibration and impact causing damage to ledge arrangement, improve the positioning accurate accuracy of location structure.
For achieving the above object, the utility model adopts following technical scheme:
The utility model embodiment provides a kind of backlight module, comprise light guide plate, and for fixing the backboard of described light guide plate, the side of described light guide plate is provided with at least one ledge arrangement, on the side of described backboard, correspondence is provided with at least one locating groove, described locating groove is the gap on described backboard between a pair location ear, and at least one ledge arrangement described is connected in corresponding described locating groove, the flexible cover of described location ear overcoat.
Further, described resilient sleeve is rubber sleeve.
Further, the profile of described rubber sleeve is rectangular structure, one of them side is provided with the opening for sheathed described location ear.
Further, the length of described rubber sleeve on described locating groove cell wall direction, equals the degree of depth of described locating groove.
Further, the material of described backboard is metal.
Further, the width of described locating groove is equal to or less than the width of described ledge arrangement.
Further, described locating groove is U-shaped.
Further, described light guide plate side, and be provided with light source between described backboard.
The utility model embodiment also proposed a kind of liquid crystal indicator, comprises display panels, and above-mentioned arbitrary described backlight module.
The beneficial effects of the utility model are: a kind of backlight module of the present utility model and liquid crystal indicator, location ear on backboard is put resilient sleeve, when ledge arrangement expanded by heating, resilient sleeve is along ledge arrangement expansion direction generation deformation, the extruding force that ledge arrangement is subject to reduces greatly, prevents ledge arrangement from rupturing, simultaneously, gap smaller between the ear of location, is conducive to light guide plate precise positioning; In addition, generation vibration or when being subject to impacting, resilient sleeve can play the cushioning effect to ledge arrangement, avoid ledge arrangement corner and rupture because of the stress concentrated.
Accompanying drawing explanation
Exemplary embodiment of the present utility model will be described in detail by referring to accompanying drawing below, the person of ordinary skill in the art is more clear that above-mentioned and other feature and advantage of the present utility model, in accompanying drawing:
Fig. 1 is the location structure schematic diagram of light guide plate in prior art;
Fig. 2 is the structural representation that the utility model embodiment one provides backlight module
Fig. 3 be in Fig. 2 of providing of the utility model embodiment one dashed region A amplify after structural representation;
In figure: 1, backboard; 2 light guide plates; 3, ledge arrangement; 4, locating groove; 5, ear is located; 6, resilient sleeve.
Detailed description of the invention
For further setting forth the utility model for the technological means reaching predetermined utility model object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to the detailed description of the invention of a kind of location structure of light guide plate that the utility model proposes, structure, feature and effect thereof, be described in detail as follows.
Embodiment one
Fig. 2 is the structural representation of the backlight module that the utility model embodiment provides.See Fig. 2 and Fig. 3, this backlight module comprises light guide plate 2, and for the backboard 1 of lightguide plate fixing 2, the side of light guide plate 2 is provided with at least one ledge arrangement 3, on the side of backboard 1, correspondence is provided with at least one locating groove 4, and locating groove 4 is the gap on backboard 1 between a pair location ear 5, and at least one ledge arrangement 3 is connected in corresponding locating groove 4, wherein, the flexible cover 6 of ear 5 overcoat is located.
Preferably, in said structure, resilient sleeve 6 is rubber sleeve, this is because rubber has good elasticity, wearability and resistance to ag(e)ing, stressed easy generation deformation, effectively increases the space of ledge arrangement expanded by heating, and long service life.
Further, the profile of above-mentioned rubber sleeve can be rectangular structure, one of them side is provided with the opening for sheathed location ear 5.Cuboid is easily prepared, and each smooth, and the wherein one side of rubber sleeve, as the cell wall of locating groove 4, can contact with ledge arrangement 3 completely, makes ledge arrangement 3 clamping enter part uniform force in locating groove 4.
Further, the length of above-mentioned rubber sleeve on locating groove 4 cell wall direction, can equal the degree of depth of locating groove 4.Thus, when ledge arrangement 3 extend into the bottom land of locating groove 4, ensure that the side of ledge arrangement 3 all contacts with rubber sleeve everywhere, rupture to prevent the corner of ledge arrangement 3.
Further, above-mentioned rubber sleeve can be Transparent color, and the color of the light sent to avoid light source is interfered.
In the present embodiment, the material of backboard 1 can be metal, and preferably, the material of backboard is iron.
In addition, the width of described locating groove 4 is equal to or less than the width of ledge arrangement 3.When making light guide plate positioning structure, make the width of the width of locating groove 4 and ledge arrangement 3 equal, or the width of locating groove 4 is less than the width of ledge arrangement 3, make light guide plate in untapped situation, ledge arrangement 3 just can tight clamping fit in locating groove 4, to make light guide plate 2 and backboard 1 firm engagement, and light guide plate 2 can not be made to be subjected to displacement, accurate positioning.
Above-mentioned locating groove 4 is U-shaped, to adapt to the shape of ledge arrangement 3.
Light guide plate 2 can be divided into flat board and clapboard by shape, and in the present embodiment, light guide plate 2 can be dull and stereotyped, and namely light guide plate 2 is seen as rectangle from light inlet.
In addition, in the present embodiment, light guide plate 2 side, and between backboard 1, be provided with light source (not marking in figure).In the gap of this light source between light guide plate 2 and backboard 1, when light guide plate 2 expanded by heating, light guide plate 2 is subject to the stop of locating groove 4 bottom land by ledge arrangement 3, prevents light source to be damaged because of light guide plate 2 expanded by heating.
In the present embodiment, during assembling light guide plate 2, location ear 5 overlaps resilient sleeve 6, each ledge arrangement 3 is snapped fit onto in corresponding locating groove 4, make light guide plate 2 precise positioning on backboard 1, and make light guide plate 2 and backboard 1 firmly clamping; When using liquid crystal display, light guide plate 2 expanded by heating at the liquid crystal panel back side, with the ledge arrangement 3 also expanded by heating of light guide plate 2 one on light guide plate 2 side, the ledge arrangement 3 being arranged in locating groove 3 extrudes resilient sleeve 6, resilient sleeve 6 is with the direction of extrusion generation deformation of ledge arrangement 3, to increase the expansion space of ledge arrangement 3, alleviate the stress that ledge arrangement 3 is subject to, avoid ledge arrangement 3 to rupture.
The backlight module that the utility model embodiment one provides, location ear on backboard is put resilient sleeve, when ledge arrangement expanded by heating, resilient sleeve is along ledge arrangement expansion direction generation deformation, the extruding force that ledge arrangement is subject to reduces greatly, prevents ledge arrangement from rupturing, simultaneously, gap smaller between the ear of location, is conducive to light guide plate precise positioning; In addition, generation vibration or when being subject to impacting, resilient sleeve can play the cushioning effect to ledge arrangement, avoid ledge arrangement corner and rupture because of the stress concentrated.
Embodiment two
The utility model embodiment two provides a kind of liquid crystal indicator, comprises display panels, and backlight module provided by the utility model.
Wherein, backlight module is arranged at the back side of display panels, and in order to provide a homodisperse light on display panels, the image that the pixel electrode by controlling on display panels is formed is uniformly lighted and obtains display.
The liquid crystal indicator that the utility model embodiment two provides, comprises the backlight module that the utility model provides, and possesses corresponding function and beneficial effect.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solutions of the utility model content, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. a backlight module, comprise light guide plate, and for fixing the backboard of described light guide plate, the side of described light guide plate is provided with at least one ledge arrangement, on the side of described backboard, correspondence is provided with at least one locating groove, described locating groove is the gap on described backboard between a pair location ear, and at least one ledge arrangement described is connected in corresponding described locating groove, it is characterized in that: the flexible cover of described location ear overcoat.
2. backlight module according to claim 1, is characterized in that, described resilient sleeve is rubber sleeve.
3. backlight module according to claim 2, is characterized in that, the profile of described rubber sleeve is rectangular structure, one of them side is provided with the opening for sheathed described location ear.
4. backlight module according to claim 3, is characterized in that, the length of described rubber sleeve on described locating groove cell wall direction, equals the degree of depth of described locating groove.
5. backlight module according to claim 1, is characterized in that, the material of described backboard is metal.
6. backlight module according to claim 1, is characterized in that, the width of described locating groove is equal to or less than the width of described ledge arrangement.
7. backlight module according to claim 1, is characterized in that, described locating groove is U-shaped.
8. backlight module according to claim 1, is characterized in that, described light guide plate side, and is provided with light source between described backboard.
9. a liquid crystal indicator, is characterized in that, comprises display panels, and arbitrary described backlight module in claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520717450.2U CN204922706U (en) | 2015-09-16 | 2015-09-16 | Backlight unit and liquid crystal disply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520717450.2U CN204922706U (en) | 2015-09-16 | 2015-09-16 | Backlight unit and liquid crystal disply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922706U true CN204922706U (en) | 2015-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520717450.2U Active CN204922706U (en) | 2015-09-16 | 2015-09-16 | Backlight unit and liquid crystal disply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922706U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761912A (en) * | 2018-05-31 | 2018-11-06 | 江苏聚泰科技有限公司 | A kind of shockproof backlight module |
| CN110412678A (en) * | 2019-06-22 | 2019-11-05 | 江苏恒隆通新材料科技有限公司 | A kind of light guide diffusion board and shock-dampening method with shock-absorbing function |
| WO2023108927A1 (en) * | 2021-12-14 | 2023-06-22 | 瑞仪光电(南京)有限公司 | Diaphragm assembly structure, backlight module, and display device |
-
2015
- 2015-09-16 CN CN201520717450.2U patent/CN204922706U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761912A (en) * | 2018-05-31 | 2018-11-06 | 江苏聚泰科技有限公司 | A kind of shockproof backlight module |
| CN110412678A (en) * | 2019-06-22 | 2019-11-05 | 江苏恒隆通新材料科技有限公司 | A kind of light guide diffusion board and shock-dampening method with shock-absorbing function |
| WO2023108927A1 (en) * | 2021-12-14 | 2023-06-22 | 瑞仪光电(南京)有限公司 | Diaphragm assembly structure, backlight module, and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |