CN203605105U - Backlight module and liquid-crystal display device of backlight module - Google Patents
Backlight module and liquid-crystal display device of backlight module Download PDFInfo
- Publication number
- CN203605105U CN203605105U CN201320829460.6U CN201320829460U CN203605105U CN 203605105 U CN203605105 U CN 203605105U CN 201320829460 U CN201320829460 U CN 201320829460U CN 203605105 U CN203605105 U CN 203605105U
- Authority
- CN
- China
- Prior art keywords
- backlight module
- body frame
- base plate
- blooming piece
- protuberance
- 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.)
- Expired - Lifetime
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 18
- 239000011800 void material Substances 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000010408 film Substances 0.000 abstract description 5
- 239000012788 optical film Substances 0.000 abstract 5
- MTCPZNVSDFCBBE-UHFFFAOYSA-N 1,3,5-trichloro-2-(2,6-dichlorophenyl)benzene Chemical compound ClC1=CC(Cl)=CC(Cl)=C1C1=C(Cl)C=CC=C1Cl MTCPZNVSDFCBBE-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- JDZUWXRNKHXZFE-UHFFFAOYSA-N 1,2,3,4,5-pentachloro-6-(2,4,6-trichlorophenyl)benzene Chemical compound ClC1=CC(Cl)=CC(Cl)=C1C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl JDZUWXRNKHXZFE-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003319 supportive effect Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model discloses a backlight module and a liquid-crystal display device of the backlight module. The backlight module comprises a back frame and an optical film contained in the back frame, the back frame comprises a base board and end boards, the end board are located at the periphery of the base board and are not parallel to the plane of the base board, the backlight module further comprises a flexible printed circuit board, the flexible printed circuit board is arranged in part of the area between the optical film and the base board of the back frame, and a gap area is formed by the area, where the flexible printed circuit board is not arranged, between the optical film and the base board. The base board comprises an upper surface and a lower surface, and in the gap area, at least one protrusion is formed on the upper surface of the base board. As a gap between the optical film and the base board is reduced through the protrusion formed on the base board, risks of film deformation and film wrapping further caused by deformation, caused by external force squeezing, of the optical film can be prevented or reduced.
Description
Technical field
The utility model relates to a kind of field of liquid crystal display, more particularly, relates in particular to a kind of backlight module and liquid crystal indicator.
Background technology
Nowadays liquid crystal display has been widely used in every field, such as common mobile phone, panel computer etc.
As shown in Figure 1, be the structure chart of a kind of liquid crystal panel in prior art, comprise panel 101, flexible PCB 104(FPC, Flexible Printed Circuit), back of the body frame 110, glue frame 120, blooming piece 130.Wherein, the bottom design of back of the body frame 110 is plate; for the flexible PCB 104 that makes to be electrically connected with panel 101 can be inserted between blooming piece 130 and back of the body frame 110; between blooming piece 130 and back of the body frame 110 bottoms, conventionally can leave 0.15mm～0.20mm space; wherein; flexible PCB 104 is filled the part in space between blooming piece 130 and back of the body frame 110, and the part of not filled by flexible PCB 104 still leaves space.In the time that the LGP in blooming piece 130 is thinner, due to the existence in space, be subject to external force extruding can cause blooming piece 130 to occur bending and deformation, the distortion of blooming piece 130 may further cause film material to deform, thereby has the risk of warpage.
Utility model content
The utility model comprises a kind of backlight module, comprise back of the body frame, and be housed in the blooming piece in described back of the body frame, wherein, described back of the body frame comprises a base plate, and is positioned at described base plate surrounding and is not parallel to the end plate of described base plate plane, and described backlight module also comprises a flexible PCB, described flexible PCB is placed in the subregion between described blooming piece and the base plate of back of the body frame, and between described blooming piece and base plate, does not insert the region formation void area of flexible PCB; Described base plate comprises upper surface and lower surface, and in described void area, the upper surface of described base plate forms at least one protuberance.
Alternatively, the base plate lower surface of described back of the body frame comprises the recess matching with described protuberance position and shape.
Alternatively, the plate upper surface of described back of the body frame comprises at least two protuberances.
Alternatively, the protuberance of described plate upper surface contacts with described blooming piece.
Alternatively, the protuberance of the plate upper surface of described back of the body frame and the contact area of blooming piece are not less than 50% of original void area gross area.
Alternatively, four summits of the base plate lower surface of described back of the body frame are in same level.
Alternatively, the cross sectional shape of the protuberance of described plate upper surface be in rectangle, trapezoidal, parallelogram, circular arc any one or multiple.
The utility model also comprises a kind of liquid crystal indicator, comprise backlight module described above, and be placed in the display panels of described blooming piece top, described display panels comprises the CF(Color Filter being oppositely arranged, color film) substrate and TFT(Thin film transistor, thin film transistor (TFT)) substrate, and be clipped in the liquid crystal layer between described CF substrate and described TFT substrate; Described flexible PCB is electrically connected with described display panels.
Compared to existing design of backlight module, in the utility model, due to the existence of back of the body frame bottom plate protuberance, reduce the space between blooming piece and base plate, therefore can prevent or alleviate blooming piece and deform under the effect of stress.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the structure of backlight module in prior art;
Fig. 2 is the schematic diagram of the structure of backlight module in the utility model embodiment mono-;
Fig. 3 is the schematic diagram of the structure of backlight module in the utility model embodiment bis-;
Fig. 4 is the schematic top plan view at the liquid crystal panel back side in the utility model embodiment tri-.
The specific embodiment
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to the embodiment of these accompanying drawings other embodiment.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment mono-
Please refer to Fig. 2, is the schematic diagram of the embodiment mono-of the utility model backlight module.In the present embodiment, Fig. 2 shows backlight module 200 and such as display panels of display floater 201().Wherein, display floater 201 comprises the color membrane substrates 202(CF being oppositely arranged) and TFT substrate 203, and folder liquid crystal layer (not shown) wherein.Backlight module 200 can comprise back of the body frame, glue frame 220, blooming piece 230, further and backlight (not shown), described back of the body frame comprises base plate 2101 and end plate 2102, end plate 2102 is formed on the surrounding of base plate 2101 and is not parallel to base plate 2101, preferably can be set to perpendicular to base plate 2101, this back of the body frame can be accommodated blooming piece etc.; Further, described backlight can be arranged on the bottom of blooming piece, also can be arranged on a side of blooming piece; Blooming piece 230 can comprise LGP, reflector plate etc. for improving some tunic sheets of optical effect.Described backlight module 200 also comprises a flexible PCB 204, and extend from a side of display floater one end of this flexible PCB 204, is placed between blooming piece 230 and base plate 2101 through bending.
Further, the base plate 2101 of back of the body frame has upper surface 2103 and lower surface 2104, embodiment of the present utility model is formed with protuberance 2105 on the plate upper surface 2103 for void area place being positioned at originally, protuberance 2105 can reduce the space between blooming piece 230 and base plate 2101, the shape of protuberance 2105 optional in rectangle, trapezoidal, parallelogram, circular arc any one or multiple.Preferably, protuberance 2105 contacts with the below of blooming piece 230, more preferably, protuberance 2105 is not less than 50% of the original void area gross area of blooming piece with the contact area of blooming piece 230, wherein, original void area in the time not forming described protuberance, between described base plate and blooming piece, all void area except described FPC area occupied.In the present embodiment, protuberance 2105 plays a supportive role to blooming piece 230, due to the existence of flexible PCB 204, between blooming piece 230 and back of the body frame, there iing space at the region memory that there is no flexible PCB, be subject to external force extruding can cause the blooming piece 230 that leaves space to deform, thereby cause the also distortion thereupon of film material, and then there is a risk of warpage of generation, and in the present embodiment owing to having formed protuberance 2105 at plate upper surface, can significantly reduce the space between blooming piece 230 and base plate 2101, thereby can prevent or reduce the generation of blooming piece extrusion.The lower surface 2104 of base plate can be tabular, also can comprise recess 2106, and recess 2106 can reduce the weight of backlight module 200, thereby reduce the weight of whole display, preferably, the shape of recess 2106 can match with protuberance 2105, as shown in Figure 2.Preferably, four summits of base plate lower surface 2104 of back of the body frame are in same level, can smooth placement when this design can make to carry on the back frame and is placed in horizontal plane, and to eliminate back of the body frame bottom plate 2101 offset in vertical direction.
In the present embodiment, the material of back of the body frame preferably but be not limited to metal material.Back of the body frame protuberance 2105 and recess 2106 can adopt the processing modes such as punching press, casting, machining, forging to realize, but are also not limited to the above processing method of enumerating.Back of the body frame protuberance 2105 can have different cross sectional shapes, for example rectangle, trapezoidal, parallelogram, circular arc or other arbitrary shapes, as long as can be to the passive shape of blooming piece, all in thought of the present utility model, preferably, back of the body frame protuberance 2105 is that face contacts with the way of contact of blooming piece.
Embodiment bis-
Please refer to Fig. 3, is the embodiment bis-of the utility model backlight module.In embodiment bis-, the places different from embodiment mono-are, the upper surface 3103 of back of the body frame bottom plate 3101 has the first protuberance 3105 and the second protuberance 3107, the lower surface 3104 of back of the body frame bottom plate 310 has the first recess 3106 and the second recess 3108, and wherein first, second protuberance matches with the shape of first, second recess respectively.The first and second protuberance contacts with blooming piece 330, blooming piece 330 is played a supportive role, compared with embodiment mono-, multiple protuberances are set, more large area is filled the gap area between base plate and blooming piece, more effectively prevents that described blooming piece is bending or is out of shape.
In like manner, can also expand ground, protuberance, the recess that back of the body frame bottom plate 3101 of the present utility model has is not limited to two, and those skilled in the art can be according to actual needs, and plural protuberance, recess are set, and blooming piece 330 is played a supportive role.
Embodiment tri-
Please refer to Fig. 4, is the embodiment tri-of the utility model display unit.Fig. 4 is the schematic top plan view at the liquid crystal panel back side, in embodiment tri-, draw from liquid crystal panel 401 one end of FPC404, draw from back of the body frame left plate 4101 one end in addition, electrical connection terminal 440, so that electric signal transmission is to this terminal, the space that back of the body frame is not filled by FPC404 forms void area, the places different from embodiment mono-are, the present embodiment has provided a kind of liquid crystal indicator, comprise any one backlight module in above-described embodiment, and be placed in the display panels of described blooming piece top, described display panels comprises the CF substrate and the TFT substrate that are oppositely arranged, and be clipped in the liquid crystal layer between CF substrate and TFT substrate, described flexible PCB is electrically connected with described display panels.Concrete in Fig. 4, the first protuberance 4105, the second protuberance 4107 and the 3rd protuberance 4109 are set in the void area of described backlight module, and these protuberances can be filled several void area that are originally split to form by FPC404, arranging of protuberance can be to fill space as object as possible, and the number of protuberance and size can be determined according to concrete needs.In the present embodiment, the first protuberance 4105 is arranged on the void area between FPC404 and back of the body frame first member plate 4101, the second protuberance 4107 is arranged on the void area between FPC404 and back of the body frame right end plate 4102, and the 3rd protuberance 4109 is arranged on the void area between FPC404 and back of the body frame bottom plate 4103.In addition, the void area of back of the body frame position corresponding to liquid crystal panel 401 viewing areas also can arrange corresponding protuberance (for clear in structure shows, in not shown).Compare embodiment mono-, the present embodiment can be filled the various piece of several void area that are split to form by FPC404, thus the more effective flexural deformation that prevents blooming piece.Preferably, protuberance below can correspondingly form recess, to alleviate backlight module overall weight.
In sum; although the utility model discloses above preferred embodiment; but above preferred embodiment does not limit scope of the present utility model, those skilled in the art is not departing from spirit and scope of the present utility model, and the variation of doing all belongs to protection domain of the present utility model.
Claims (8)
1. a backlight module, comprises back of the body frame, and is housed in the blooming piece in described back of the body frame, wherein,
Described back of the body frame comprises a base plate, and is positioned at described base plate surrounding and is not parallel to the end plate of described base plate plane,
Described backlight module also comprises a flexible PCB, and described flexible PCB is placed in the subregion between described blooming piece and the base plate of back of the body frame, and between described blooming piece and base plate, does not insert the region formation void area of flexible PCB;
Described base plate comprises upper surface and lower surface, forms at least one protuberance at the plate upper surface that is positioned at described void area.
2. backlight module according to claim 1, is characterized in that, the base plate lower surface of described back of the body frame comprises the recess matching with described protuberance position and shape.
3. backlight module according to claim 1, is characterized in that, the plate upper surface of described back of the body frame comprises at least two protuberances.
4. according to the backlight module described in claim 1-3 any one, it is characterized in that, the protuberance of described plate upper surface contacts with described blooming piece.
5. according to the backlight module described in claim 1-3 any one, it is characterized in that, the protuberance of the plate upper surface of described back of the body frame and the contact area of blooming piece are not less than 50% of original void area gross area.
6. according to the backlight module described in claim 1-3 any one, it is characterized in that, four summits of the base plate lower surface of described back of the body frame are in same level.
7. according to the backlight module described in claim 1-3 any one, it is characterized in that, the cross sectional shape of the protuberance of described plate upper surface be in rectangle, trapezoidal, parallelogram, circular arc any one or multiple.
8. a liquid crystal indicator, comprise the backlight module as described in claim 1-7 any one, and be placed in the display panels of described blooming piece top, described display panels comprises the CF substrate and the TFT substrate that are oppositely arranged, and is clipped in the liquid crystal layer between described CF substrate and described TFT substrate;
Described flexible PCB is electrically connected with described display panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320829460.6U CN203605105U (en) | 2013-12-16 | 2013-12-16 | Backlight module and liquid-crystal display device of backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320829460.6U CN203605105U (en) | 2013-12-16 | 2013-12-16 | Backlight module and liquid-crystal display device of backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203605105U true CN203605105U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320829460.6U Expired - Lifetime CN203605105U (en) | 2013-12-16 | 2013-12-16 | Backlight module and liquid-crystal display device of backlight module |
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| Country | Link |
|---|---|
| CN (1) | CN203605105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11294237B2 (en) | 2019-06-27 | 2022-04-05 | Xiamen Tianma Micro-Electronics Co., Ltd. | Flexible touch display panel and flexible touch display apparatus |
-
2013
- 2013-12-16 CN CN201320829460.6U patent/CN203605105U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11294237B2 (en) | 2019-06-27 | 2022-04-05 | Xiamen Tianma Micro-Electronics Co., Ltd. | Flexible touch display panel and flexible touch display apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |
|
| CX01 | Expiry of patent term |