CN206906753U - A kind of backlight module and liquid crystal display device - Google Patents
A kind of backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN206906753U CN206906753U CN201621261433.3U CN201621261433U CN206906753U CN 206906753 U CN206906753 U CN 206906753U CN 201621261433 U CN201621261433 U CN 201621261433U CN 206906753 U CN206906753 U CN 206906753U
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- backlight module
- lamp bar
- setting element
- 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.)
- Active
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 21
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 description 6
- 239000003292 glue Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a kind of backlight module and liquid crystal display device, wherein, the backlight module includes light guide plate, and it is arranged on the lamp bar of the light guide plate side, the lamp bar includes wiring board and at least one light-emitting component on the wiring board, the incidence surface of the light-emitting component and the light guide plate is oppositely arranged, the setting element of L-type is provided with least one end of the wiring board, gap is provided with the position that the light guide plate is adapted, the lamp bar and the light guide plate are mutually fitted and fixed with by the setting element and the gap.When backlight module provided by the utility model can solve the problem that existing side entrance back module assembling positioning light guide plate, the optics of liquid crystal display device samples the problem of poor caused by the gap between the lamp bar light-emitting area and light guide plate easily occurred after hot and humid environment increases.
Description
Technical field
It the utility model is related to display technology field, more particularly to a kind of backlight module and liquid crystal display device.
Background technology
The display device of existing electronic product largely uses liquid crystal display device.Existing liquid crystal display device includes
Liquid crystal display panel and the backlight module (Back Light Module) under liquid crystal display panel.Existing backlight mould
Group is broadly divided into：Side entering type and full run-down type.The light emitting source of the backlight module of side entering type is located at the edge of backlight module so that side enters
Formula backlight module is more frivolous, and therefore, side entrance back module is widely used.Due to the light emitting source of side entrance back module
It is to be injected from edge, it is necessary to which edge-lit source is converted into area source ability by light guide plate (Light Guide Plate, LGP)
Meet requirement of the liquid crystal display device to light source.Existing side entrance back module includes backboard, glue frame, light guide plate and lamp bar,
Lamp bar includes hard printed circuit board and multiple light emitting diodes in hard printed circuit board, and lamp bar is located at light guide plate
Side, enters that optical plane is relative with the one of light guide plate, and lamp bar is fixed in the side wall of close lamp bar of glue frame by double faced adhesive tape.
Existing side entrance back module is when assembling positions light guide plate, first by light guide plate close to the side of lamp bar and lamp bar
Light-emitting area align and be close to, then side of the light guide plate away from lamp bar is fixed with adhesive tape.When liquid crystal display device is completed
After backlight module assembling, it usually needs wait reliability test by hot and humid, it is contemplated that light guide panel material and two-sided glue material
Expect the dilatancy under hot and humid environment, certain gap is reserved between light guide plate and lamp bar.When backlight module has assembled
Into during the hot and humid test of rear progress, easily there is phenomenon of expanding with heat and contract with cold in light guide plate and double faced adhesive tape, and light guide plate can be made to be lighted with lamp bar
Gap between face is increased, and influences optics taste, and light guide plate can be caused to be produced inside backlight module when serious and rocked and with this
There is light leak exception in the liquid crystal display of backlight module.
Utility model content
In view of the above problems, the utility model provides a kind of backlight module and liquid crystal display device, to solve the existing back of the body
The lamp bar light-emitting area that light guide plate carries out occurring after the reliability test such as hot and humid after assembling with lamp bar contraposition in optical mode group is with leading
The problem of gap between tabula rasa increases.
To use following technical scheme up to this purpose, the utility model：
In a first aspect, the utility model embodiment provides a kind of backlight module, including light guide plate, and it is arranged on described
The lamp bar of light guide plate side, the lamp bar includes wiring board and at least one light-emitting component on the wiring board, described
The incidence surface of light-emitting component and the light guide plate is oppositely arranged, and the setting element of L-type is provided with least one end of the wiring board,
Gap, the lamp bar and the light guide plate is provided with the position that the light guide plate is adapted to slit with described by the setting element
Mouth is mutually fitted and fixed with.
Further, the setting element is located at the luminous member of the end and the neighbouring wiring board end of the wiring board
Between part.
Further, the end of the setting element is one raised.
Further, the raised outer surface of the setting element is cambered surface.
Further, the setting element is made up of plastics or rubber.
Further, the setting element is fixed on the wiring board by piece mode.
Further, the gap is located adjacent to the side of the incidence surface of the light guide plate.
Further, the inner surface of the gap is cambered surface.
Further, the cross-sectional width L2 of the inner surface of the gap is more than the transversal of the outer surface of the setting element
Face width L1.
Second aspect, the utility model embodiment additionally provide a kind of liquid crystal display device, including liquid crystal display panel with
And the backlight module below the liquid crystal display panel, the backlight module are the backlight module that first aspect provides.
As described above, the beneficial effect that the technical scheme of the utility model embodiment is brought is：The utility model provides the back of the body
Optical mode group and liquid crystal display device, by the way that at least one end is provided with the setting element of L-type on lamp bar wiring board, mutually fitted in light guide plate
The position answered is provided with gap, lamp bar and the light guide plate and is mutually fitted and fixed with the gap on light guide plate by the L-type setting element.
So, even if the backlight module is after the reliability test such as hot and humid, light guide plate occurs thermal expansion with double faced adhesive tape and shunk,
The gap of light guide plate and lamp bar is also not in larger variation, solves existing side entrance back module and is led in assembling positioning
Through too high warm and humid grade reliability test after tabula rasa, easily there is the problem of gap between lamp bar light-emitting area and light guide plate increases.
Brief description of the drawings
Pass through the description to the utility model example referring to the drawings, of the present utility model above-mentioned and other purposes, spy
Advantage of seeking peace will be apparent from, in the accompanying drawings：
Fig. 1 is the structural representation of the lamp bar of the utility model embodiment；
The structural representation of the light guide plate of Fig. 2 the utility model embodiments；
The structural representation that Fig. 3 the utility model embodiments light guide plate is fixed with lamp bar；
The floor map that Fig. 4 the utility model embodiments light guide plate is fixed with lamp bar.
Wherein：100th, backboard；110th, bottom plate；120th, side plate；200th, lamp bar；210th, wiring board；220th, light-emitting component；230、
Setting element；231st, it is raised；300th, light guide plate；310th, gap.
Embodiment
Further to illustrate that the utility model is to reach the technological means and effect that predetermined purpose of utility model taken,
Below in conjunction with accompanying drawing and preferred embodiment, to specific embodiment of the present utility model, structure, feature and its effect, specifically
It is bright as after.
Fig. 1 is the structural representation of the lamp bar of the utility model embodiment, the light guide plate of Fig. 2 the utility model embodiments
Structural representation, the structural representation that Fig. 3 the utility model embodiments light guide plate is fixed with lamp bar.As shown in Figure 1 to Figure 3, originally
Utility model embodiment backlight module includes backboard 100, glue frame (figure does not indicate), light guide plate 300 and lamp bar 200.Backboard 100 wraps
At least two side plates 120 for including a bottom plate 110 and being connected with bottom plate 110, the bottom plate 110 and the side plate 120 form accommodating sky
Between.Wherein, light guide plate 300 and lamp bar 200 are placed in the accommodation space, and lamp bar 200 is arranged on the side of light guide plate 300.
Lamp bar 200 includes wiring board 210 and at least one light-emitting component 220 on the wiring board 210, and at least
The incidence surface of the exiting surface of one light-emitting component 220 and the light guide plate 300 is oppositely arranged, in the utility model, wiring board
210 be hard circuit board, and light-emitting component 220 is interspersed among on the hard circuit board.Lamp bar 200 is fixed to glue frame by double faced adhesive tape
On the side plate 120 of the close backboard 100 of (figure does not indicate), its light provided can enter via the incidence surface of light guide plate 300
In light guide plate 300.
L-type setting element 230 is provided with the inner surface of the one end of assist side 210, can also be on the wiring board 210
Both ends be provided with the setting element 230 of L-type.
The setting element 230 is located at the end of wiring board 210 and is adjacent between the light-emitting component of the end of wiring board 210.
The setting element 230 is made in assist side 210 by piece mode, and the setting element 230 is made up of plastics or rubber, preferably
Ground, from on-deformable plastic material after high temperature, or vulcanie, it is positioned such that element 230 is less susceptible to by high temperature
Deformed after high humidity environment.
The end of the setting element 230 extends to the lateral location for being adjacent to the incidence surface of light guide plate 300, it is preferable that this is fixed
The end of bit unit 230 can be a projection 231, and the outer surface of the projection 231 is cambered surface.
Gap 310 is provided with the position that light guide plate 300 is adapted simultaneously, the gap 310 is located adjacent to light guide plate 300
The side of incidence surface so that the end of the setting element 230 is just extended at the gap 310 on the light guide plate 300, realizes positioning
Element 230 is chimeric with light guide plate 300, and further the relative position between lamp bar 200 and light guide plate 300 is fixed.It is excellent
Selection of land, the inner surface of the gap 310 is cambered surface, and the inner surface Glabrous of the gap 310 pierces, to reduce setting element 230
With the friction at the gap 310 of light guide plate 300.
The floor map that Fig. 4 the utility model embodiments light guide plate is fixed with lamp bar.It refer to shown in Fig. 4, this implementation
The setting element 230 be L-type in example, and its end is a projection 231, projection 231 and the light guide plate on the setting element 230
The phase of gap 310 on 300 is fitted together to the relative position for fixing lamp bar 200 and light guide plate 300, the inner surface of the gap 310
Cross-sectional width L2 is more than the cross-sectional width L1 of raised 231 outer surface of the setting element 230, it is preferable that L2
0.6mm bigger than L1 or so, it is easy to after the setting element 230 is chimeric with the gap 310 of the light guide plate 300 of adaptable position have necessarily
Activity space, therefore correspondingly reduce between the light-emitting area of lamp bar 200 and light guide plate 300 after hot and humid environment, by
In the phenomenon for the gap increase expanded with heat and contract with cold and occurred.
To sum up, a kind of backlight module and liquid crystal display device be the utility model is related to, by lamp bar wiring board 210 up to
Few one end is provided with the setting element 230 of L-type, and gap 310, the lamp bar 200 and institute are provided with the position that light guide plate 300 is adapted
Light guide plate 300 is stated to be fitted and fixed with by the setting element 230 and the phase of gap 310.So, even if the backlight module is passing through
Cross it is hot and humid wait reliability test after, light guide plate 300 and double faced adhesive tape occur thermal expansion and shunk, light guide plate 300 and lamp bar 200
Gap is also not in larger variation, solve existing side entrance back module assembling position light guide plate 300 after by
Height is warm and humid to wait reliability test, the problem of gap between the light-emitting area of lamp bar 200 and light guide plate 300 increases easily occurs.
Above is full content of the present utility model, in this manual, term " comprising ", "comprising" or its it is any its
His variant is intended to including for nonexcludability, except comprising those listed key elements, but also can include and be not expressly set out
Other element.
In this manual, the involved noun of locality such as forward and backward, upper and lower be located at parts in accompanying drawing in figure and
The mutual position of parts is intended merely to the clear of expression technology scheme and conveniently come what is defined.It should be appreciated that the side
The use of position word should not limit the claimed scope of the application.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new principle, any modification, equivalent substitution and improvements made etc., the scope of protection of the utility model should be included in
Within.
Claims (10)
1. a kind of backlight module, including light guide plate, and the lamp bar of the light guide plate side is arranged on, the lamp bar includes circuit
Plate and at least one light-emitting component on the wiring board, the light-emitting component is relative with the incidence surface of the light guide plate to be set
Put, it is characterised in that the setting element of L-type is provided with least one end of the wiring board, in the position that the light guide plate is adapted
Gap is installed, the lamp bar and the light guide plate are mutually fitted and fixed with by the setting element and the gap.
2. backlight module as claimed in claim 1, it is characterised in that the setting element be located at the end of the wiring board with
Between the light-emitting component of the neighbouring wiring board end.
3. backlight module as claimed in claim 2, it is characterised in that the end of the setting element is one raised.
4. backlight module as claimed in claim 3, it is characterised in that the raised outer surface of the setting element is cambered surface.
5. backlight module as claimed in claim 4, it is characterised in that the setting element is made up of plastics or rubber.
6. backlight module as claimed in claim 5, it is characterised in that the setting element is fixed on described by piece mode
On wiring board.
7. backlight module as claimed in claim 1, it is characterised in that what the gap was located adjacent to the light guide plate enters light
The side in face.
8. backlight module as claimed in claim 7, it is characterised in that the inner surface of the gap is cambered surface.
9. backlight module as claimed in claim 8, it is characterised in that the cross-sectional width L2 of the inner surface of the gap is more than
The cross-sectional width L1 of the raised outer surface of the setting element.
10. a kind of liquid crystal display device, including liquid crystal display panel and the backlight mould below the liquid crystal display panel
Group, the backlight module are the backlight module as described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621261433.3U CN206906753U (en) | 2016-11-11 | 2016-11-11 | A kind of backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621261433.3U CN206906753U (en) | 2016-11-11 | 2016-11-11 | A kind of backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206906753U true CN206906753U (en) | 2018-01-19 |
Family
ID=61293934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621261433.3U Active CN206906753U (en) | 2016-11-11 | 2016-11-11 | A kind of backlight module and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206906753U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261034A (en) * | 2020-03-25 | 2020-06-09 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| WO2021097708A1 (en) * | 2019-11-20 | 2021-05-27 | 京东方科技集团股份有限公司 | Electronic device, display apparatus, and backlight module |
| CN114660700A (en) * | 2022-03-28 | 2022-06-24 | 成都京东方光电科技有限公司 | Backlight module and display device |
-
2016
- 2016-11-11 CN CN201621261433.3U patent/CN206906753U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021097708A1 (en) * | 2019-11-20 | 2021-05-27 | 京东方科技集团股份有限公司 | Electronic device, display apparatus, and backlight module |
| CN113168047A (en) * | 2019-11-20 | 2021-07-23 | 京东方科技集团股份有限公司 | Electronic equipment, display device and backlight module |
| US11402688B2 (en) | 2019-11-20 | 2022-08-02 | Beijing Boe Display Technology Co., Ltd. | Display device and backlight module |
| CN111261034A (en) * | 2020-03-25 | 2020-06-09 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| WO2021190154A1 (en) * | 2020-03-25 | 2021-09-30 | 京东方科技集团股份有限公司 | Display panel and manufacturing method therefor, and display device |
| US11774670B2 (en) | 2020-03-25 | 2023-10-03 | Beijing Boe Display Technology Co., Ltd. | Display panel, method for manufacturing a display panel and display device |
| CN114660700A (en) * | 2022-03-28 | 2022-06-24 | 成都京东方光电科技有限公司 | Backlight module and display device |
| CN114660700B (en) * | 2022-03-28 | 2024-01-05 | 成都京东方光电科技有限公司 | Backlight module and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206906753U (en) | A kind of backlight module and liquid crystal display device | |
| US10831050B2 (en) | Rigid LCD assembly | |
| CN102734713B (en) | LED backlight module | |
| US20190154909A1 (en) | Expandable light guide for backlight | |
| CN106325496A (en) | Electronic device having force touch function | |
| CN206339808U (en) | A kind of backlight module and the liquid crystal display device with the backlight module | |
| CN203204952U (en) | Display device and television | |
| US8896783B2 (en) | Frameless liquid crystal display device | |
| CN203478019U (en) | Backlight module | |
| US20200018880A1 (en) | Polarizer, display panel and display device | |
| WO2017088446A1 (en) | Liquid crystal module | |
| CN102289101A (en) | Backlight display module and liquid crystal display | |
| CN202421666U (en) | Narrow border display device | |
| CN206057758U (en) | A kind of side entrance back module and display device | |
| US20220308631A1 (en) | Support structure for flexible panel, display device and method for assembling flexible module | |
| US20090295741A1 (en) | Electro-optical apparatus and display module | |
| CN106598180B (en) | The heat dissipation board mounting structure and interactive intelligent tablet computer of interactive intelligent tablet computer | |
| CN204964951U (en) | Backlight subassembly, display device | |
| CN204853358U (en) | Limit structure , backlight unit and display device | |
| CN206354738U (en) | Luminous laminate and article placing cabinet | |
| CN211014915U (en) | L CM liquid crystal display module | |
| CN104896370B (en) | A kind of LED backlight mould group | |
| US20140184979A1 (en) | Slim bezel liquid crystal display device | |
| CN104155783B (en) | Flat-panel screens | |
| CN206249220U (en) | The radiating board mounting structure and interactive intelligent tablet computer of interactive intelligent tablet computer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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 |