CN202132804U - Backlight assembly, backlight and liquid crystal display device - Google Patents
Backlight assembly, backlight and liquid crystal display device Download PDFInfo
- Publication number
- CN202132804U CN202132804U CN201120237699U CN201120237699U CN202132804U CN 202132804 U CN202132804 U CN 202132804U CN 201120237699 U CN201120237699 U CN 201120237699U CN 201120237699 U CN201120237699 U CN 201120237699U CN 202132804 U CN202132804 U CN 202132804U
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- Prior art keywords
- film material
- groove
- support
- backlight
- backlight assembly
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 110
- 229920001971 elastomer Polymers 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims description 40
- 210000003734 kidney Anatomy 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract 5
- 230000001603 reducing effect Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 229920005479 Lucite® Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- -1 and wherein Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
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- Liquid Crystal (AREA)
Abstract
The utility mode discloses a backlight assembly, a backlight and a liquid crystal display device. The backlight assembly comprises membrane materials, a rubber frame and a support made of thermo-plasticity materials. A lug is arranged on the membrane materials, and a first groove is arranged on the lug. The support comprises a fixing rod and two supporting rods, first ends of the two supporting rods are respectively connected with the first end of the fixing rod, a second end of the fixing rod is inserted into the rubber frame, and second ends of the two supporting rods are respectively clamped with two ends of the first groove. Compared with the existing technology which adopts a cylindrical support for supporting, the fixing method has better fixing effects to the membrane materials at normal temperature and reserves more expansion gaps for the membrane materials at high temperature, thereby reducing effects to frame quality of the liquid crystal display device caused by improper size of the reversed expansion gaps during clamping of the membrane materials and the rubber frame, and improving the frame quality of the liquid crystal display device.
Description
Technical field
The utility model relates to technical field of liquid crystal display, relates in particular to a kind of backlight assembly, backlight and liquid crystal indicator.
Background technology
Liquid crystal indicator (Liquid Crystal Display, LCD) in because liquid crystal layer itself do not have luminous function, need show to realize image for LCD provide light source.In through mode LCD, adopting backlight is the light source that liquid crystal layer provides illuminance distribution.
Fig. 1 shows the general structural representation (this figure is the front view of backlight) of the backlight that adopts in the liquid crystal indicator; As shown in Figure 1; This backlight comprises chase (Bezel) 1, liquid crystal display (Panel) 2, film material (Sheet) 3, LGP 4, reflector plate 5 and glue frame (Mold Frame) 6; Wherein, film material 3, LGP 4 and reflector plate 5 are cascading and are fixed in the glue frame 6.Particularly, the mode that film material 3 and the glue frame 6 film material lug (Sheet Guide) through setting on the column support that is provided with on the glue frame 6 and the film material 3 engages is fixed together, and Fig. 2 shows the structural representation (this figure is the vertical view of film material 3 shown in Figure 1) of film material 3; As shown in Figure 2; Film material 3 is provided with a plurality of lugs 31, and this lug 31 is provided with slotted eye, in the practical application; The position of lug 31 and quantity can be set according to actual needs flexibly, and 4 lugs are merely for example shown in Fig. 2.Fig. 3 shows the structural representation that is used on the glue frame 6 with the fixing part of film material 3; As shown in Figure 3; Be used on the glue frame 6 being provided with column support 61 with film material 3 fixing parts; The quantity of this column support 61 and position are corresponding with the quantity and the position of the lug 31 on the film material 3 usually, promptly through the mode that column support 61 is engaged with lug 31 film material 3 and glue frame 6 are fixed together.As shown in Figure 4; 1 lug 31 in the film material 3 be arranged on glue frame 6 on structural representation (this figure be film material 3 shown in Figure 1 and the cutaway view of glue frame 6 standing parts) after corresponding column support 61 engagings; Visible by Fig. 6; Column support 61 on the glue frame 6 is fastened in the slotted eye of lug 31 of film material 3, to reach the fixing purpose of film material 3.
In practical application,, need carry out the reliability test to liquid crystal indicator usually in order to guarantee the display quality of liquid crystal indicator; The test of this reliability specifically comprises high temperature test and vibration test (or be called to fall hit test), wherein, and in the high temperature test process; The mould material 3 of backlight can expand in the high temperature test process usually, in this case, if do not reserve expansion space; Will cause mould material 3 the fold phenomenon to occur, and then cause liquid crystal indicator picture displayed inferior quality, therefore; Leave certain expansion space when expanding for film material 3, can when the lug 31 with the film material engages with the column support 61 of glue frame, reserve certain gap usually as the expansion space of film material 3 under hot environment; But in the practical application, because glue frame and column support employing polymethyl methacrylate thereof (or be called the lucite acrylic, and be abbreviated as PMMA) at high temperature can not deform basically; Therefore, when being expanded to, film material 3 still fold can take place after filling up this expansion space.If it is too big that this expansion clearance is provided with, in vibration test (or fall and hit test), the problem that mould material 3 moves can occur, thereby make the liquid crystal indicator picture displayed produce hickie and white point, and then cause liquid crystal indicator picture displayed inferior quality.
In sum; The mode that engages of film material and glue frame in the backlight that prior art provides; Can not satisfy the requirement of high temperature test and vibration test simultaneously, have the relatively poor problem of picture quality owing to the improper liquid crystal indicator of reserving that causes of expansion clearance size.
The utility model content
The embodiment of the utility model provides a kind of backlight assembly, backlight and liquid crystal indicator, with solve that prior art exists when the film material engage with the glue frame owing to the relatively poor problem of picture quality of the big or small improper liquid crystal indicator that causes in expansion clearance of reservation.
An aspect according to the utility model provides a kind of backlight assembly, comprising:
The support of film material, glue frame and thermoplasticity material;
Wherein:
Said film material is provided with lug, and said lug is provided with first groove;
Said support comprises two support bars that the fixed bar and first end are connected with first end of said fixed bar respectively, and second end of said fixed bar inserts in the said glue frame, and second end of said two support bars engages with the two ends of said first groove respectively.
According to another aspect of the utility model, a kind of backlight that comprises above-mentioned backlight assembly is provided also.
According to another aspect of the utility model, a kind of liquid crystal indicator that comprises above-mentioned backlight is provided also.
The beneficial effect of the utility model is following:
In the backlight assembly that the utility model embodiment provides; Film material and glue frame are fixed together through the support of thermoplasticity material, and wherein, the film material is provided with lug; This lug is provided with first groove; Support inserts the glue frame to fix with the glue frame through an end of the fixed bar that comprises, and the other end of this fixed bar is connected with an end of two support bars respectively, the other end of these two support bars respectively with film material lug on the two ends of first groove engage.Backlight assembly according to this fixed form formation; On the one hand; Two support bars engage with the two ends of first groove of film material with fixing film material; This fixed form is compared through the fixing mode of column support with prior art, and the film material is had better fixation, has reduced the generation of film material situation of movement; On the other hand, film material and glue frame are fixed together through the support of thermoplasticity material, and the support of this material is harder when normal temperature, thereby can play the fixation to film material and glue frame; The support of this material at high temperature can deliquescing, thereby reserves more expansion space for film material high temperature expands, and has reduced because the film material fold problem that the expansion space deficiency of film material causes, thereby has improved the picture quality of liquid crystal indicator.
Description of drawings
Fig. 1 is the cutaway view of the backlight that adopts in the liquid crystal indicator in the prior art;
Fig. 2 is the vertical view of the film material 3 that backlight shown in Figure 1 comprises in the prior art;
The glue frame 6 that Fig. 3 comprises for backlight shown in Figure 1 in the prior art and the cutaway view of film material 3 standing parts;
Fig. 4 for 1 lug 31 in the film material 3 in the prior art be arranged on glue frame 6 on the cutaway view of corresponding column support 61 after engaging;
Fig. 5 is the cutaway view of backlight assembly among the utility model embodiment;
Fig. 6 is film material 3 vertical view among Fig. 5 among the utility model embodiment;
Fig. 7 is another vertical view of film material 3 among Fig. 5 among the utility model embodiment;
Fig. 8 is the cutaway view of Fig. 5 medium-height trestle 7 among the utility model embodiment;
Fig. 9 is the vertical view of the film material lug 31 after the engaging and support 7 among the utility model embodiment;
Figure 10 is for comprising the cutaway view of the part of film material 3, support 7 and glue frame 6 in the backlight among the utility model embodiment.
The specific embodiment
To exist in the prior art when the film material engages with the glue frame owing to the relatively poor problem of picture quality of the improper liquid crystal indicator of reserving that causes of expansion clearance size, the utility model provides a kind of backlight assembly, backlight and liquid crystal indicator.Describe below in conjunction with the preferred embodiment of Figure of description, should be appreciated that preferred embodiment described herein only is used for explanation and explains the application, and be not used in qualification the application the application.And under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Fig. 5 shows the cutaway view of the backlight assembly that the utility model provides, and as shown in Figure 5, this backlight assembly comprises: film material 3, glue frame 6 and support 7, the fixing part of film material 3 and glue frame 6 has been shown among this Fig. 5, and the remainder of film material 3 does not illustrate in the drawings.Wherein, support 7 can adopt thermoplasticity (thermoplasticity) material, and the material of this material when heating flow deformation can take place; Can keep definite shape after the cooling; The performance that possesses thermoplastic and hardening by cooling, generally speaking, under normal temperature condition hard and under hot conditions softer material; For example, support 7 can specifically be selected for use and possess thermoplastic rubber or plastics etc.In the practical application, because the rubber material is harder under normal temperature environment, have higher elasticity and plasticity, have good mechanical intensity, hysteresis loss is little, and living heat is low when repeatedly being out of shape, and has good flexible resistance; Under hot environment softer and after recovering normal temperature shape recover easily; Therefore; This support 7 can preferably adopt the rubber material; Thereby under normal temperature environment, can be good at guaranteeing self shape and size, guaranteeing good stationarity, thereby at high temperature can deliquescing reserve more expansion space for film material 3 expands to mould material 3 and glue frame 6.
Fig. 6 shows the vertical view of film material 3 among Fig. 5; As shown in Figure 6, this film material 3 is provided with lug 31, and this lug 31 is provided with first groove 311; 1 lug, 31 conducts that this Fig. 5 shows on the film material 3 are given an example; In the practical application, can be provided with a plurality of lugs 31 on the film material 3, and the position of lug 31 can be confirmed flexibly according to actual needs.First groove 311 shown in Figure 6 is a rectangular channel, and in the practical application, this first groove 311 can also adopt kidney slot, and promptly mid portion is a rectangle, and two ends are the groove of ellipsoidal structure.
In the preferred implementation that the utility model provides; On the basis that does not influence film material fixed function; In order to reserve more expansion space for film material 3, this preferred implementation provides film equipment structure (vertical view) as shown in Figure 7, and is as shown in Figure 7; This film material lug 31 also further is provided with and the second cross-shaped groove 312 of first groove 311 on the basis that is provided with first groove 311.Preferably, first groove 311 and second groove 312 can square crossings, also can intersect at an angle.Preferably second groove 312 is a semienclosed slot.According to the film material lug 31 of structure shown in Figure 7, when the film material expanded, second groove 312 can be used as the expansion space of film material 3, had further reduced film material 3 owing to the not enough fold situation that causes of expansion space.
Fig. 8 shows the cutaway view of Fig. 5 medium-height trestle 7; As shown in Figure 7; This support 7 comprises fixed bar 71 and two support bars 72, and wherein, first end of fixed bar 71 connects respectively at first end of two support bars 72; Second end of fixed bar 71 is used for inserting glue frame 6 with fixing with glue frame 6, and second end of these two support bars 72 is respectively applied for the two ends of first groove 311 and engages.Among this Fig. 7, first end of two support bars 72 and fixed bar 71 are fixed in a bit and curved structure, in the practical application, and these two support bars 72 can also take the shape of the letter U structure or v-shaped structure.
The structure of the lug 31 of the film material 3 that provides based on Fig. 6 and the structure of the support 7 that Fig. 7 provides; When the lug 31 with film material 3 engages with support 7; Be that two ends with first groove 311 on second end of two support bars 72 of this support 7 and the lug 31 engage; Film material lug 31 after the engaging is as shown in Figure 9 with the vertical view of support 7, and wherein, what be fastened on first groove, 311 two ends is the end face of second end of support bar 72.In the practical application; In order to reach better engaging effect, the shape at the two ends of the end face of these two support bars 72 and first groove 311 can be mated, for example; If the two ends of first groove 311 be shaped as rectangle; Then the end face of support bar 72 can be set to square or rectangle, if the two ends of first groove 311 are arc, then the end face of support bar 72 can be set to and arcuate shape such as the circle of the arc at first groove, 311 two ends coupling, ellipse.
The preferred implementation that provides according to the utility model is because the shrinkage of the material of support 7 is limited, therefore; Expansion space when guaranteeing that film material 3 expands can engage the back at second end of two support bars 72 respectively and reserve certain gap with the two ends of first groove 311, this space can be definite flexibly according to actual needs; Preferably; This space can be set to organize the mould tolerance, promptly is set to 0.05 millimeter, to guarantee minimizing of film material amount of movement.
In the backlight assembly that the utility model provides; Film material 3 is fixed together with the support 7 of glue frame 6 through the thermoplasticity material, and wherein, film material 3 is provided with lug 31; This lug 31 is provided with first groove 311; Support 7 inserts glue frame 6 with fixing with glue frame 6 through an end of the fixed bar 71 that comprises, and the other end of this fixed bar is connected with an end of two support bars 72 respectively, the other end of these two support bars 72 respectively with film material lug 31 on the two ends of first groove 311 engage.Backlight assembly according to this fixed form formation; On the one hand; Two support bars 72 engage with the two ends of first groove 311 of film material 3 with fixing film material 3; This fixed form is compared through the fixing mode of column support with prior art, and the film material is had better fixation, has reduced the appearance of film material situation of movement; On the other hand; Film material 3 is fixed together with the support 7 of glue frame 6 through the thermoplasticity material, and the support 7 of this material is harder when normal temperature, thereby can play the fixation of film material 3 with glue frame 6; This material meeting deliquescing at high temperature; Thereby reserve more expansion space for film material 3 high temperature expand, reduced the not enough film material fold problem that causes of expansion space, thereby improved the picture quality of liquid crystal indicator owing to film material 3.
The above-mentioned backlight assembly that the utility model embodiment provides can be arranged in backlight shown in Figure 1; Particularly, the fixed form of film material 3 and glue frame 6 in the backlight assembly that provides according to the foregoing description comprises in this backlight that the cutaway view of part of film material 3, support 7 and glue frame 6 is shown in figure 10; The fixed bar 71 that is support 7 inserts in the glue frame 6; Support bar 72 is fixing with the lug 31 of film material, and Figure 10 only illustrates this three part, and remainder is not shown.
The above-mentioned backlight that the utility model embodiment provides can be arranged in liquid crystal indicator.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also is intended to comprise these changes and modification interior.
Claims (10)
1. a backlight assembly is characterized in that, comprising:
The support of film material, glue frame and thermoplasticity material;
Wherein:
Said film material is provided with lug, and said lug is provided with first groove;
Said support comprises two support bars that the fixed bar and first end are connected with first end of said fixed bar respectively, and second end of said fixed bar inserts in the said glue frame, and second end of said two support bars engages with the two ends of said first groove respectively.
2. backlight assembly as claimed in claim 1 is characterized in that, said first groove is rectangular channel or kidney slot.
3. backlight assembly as claimed in claim 2 is characterized in that, the form fit at the two ends of the end face of said two support bars and said first groove.
4. backlight assembly as claimed in claim 1 is characterized in that, second end of said two support bars is 0.05 millimeter with space after the two ends of said first groove engage respectively.
5. backlight assembly as claimed in claim 1 is characterized in that, also is provided with on the said lug and the second cross-shaped groove of said first groove.
6. backlight assembly as claimed in claim 5 is characterized in that, said second groove is a semienclosed slot.
7. backlight assembly as claimed in claim 1 is characterized in that said support is specially rubber material or plastic material.
8. backlight assembly as claimed in claim 1 is characterized in that, first end of said two support bars and first end of said fixed bar are fixed in a bit, and said two support bars take the shape of the letter U structure, v-shaped structure or arcuate structure.
9. a backlight is characterized in that, comprises each described backlight assembly of claim 1 to 8.
10. a liquid crystal indicator is characterized in that, comprises the described backlight of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120237699U CN202132804U (en) | 2011-07-07 | 2011-07-07 | Backlight assembly, backlight and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120237699U CN202132804U (en) | 2011-07-07 | 2011-07-07 | Backlight assembly, backlight and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132804U true CN202132804U (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120237699U Expired - Lifetime CN202132804U (en) | 2011-07-07 | 2011-07-07 | Backlight assembly, backlight and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202132804U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014063346A1 (en) * | 2012-10-24 | 2014-05-01 | 深圳市华星光电技术有限公司 | Liquid crystal display device and backlight unit thereof |
| CN108037619A (en) * | 2018-01-25 | 2018-05-15 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display |
-
2011
- 2011-07-07 CN CN201120237699U patent/CN202132804U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014063346A1 (en) * | 2012-10-24 | 2014-05-01 | 深圳市华星光电技术有限公司 | Liquid crystal display device and backlight unit thereof |
| CN108037619A (en) * | 2018-01-25 | 2018-05-15 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150708 Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20150708 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150708 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE Technology Group Co., Ltd. Patentee after: Beijing BOE Photoelectricity Science & Technology Co., Ltd. Address before: 100176 Beijing city in Western Daxing District economic and Technological Development Zone, Road No. 8 Patentee before: Beijing BOE Photoelectricity Science & Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |
|
| CX01 | Expiry of patent term |