CN203907348U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN203907348U CN203907348U CN201420203981.5U CN201420203981U CN203907348U CN 203907348 U CN203907348 U CN 203907348U CN 201420203981 U CN201420203981 U CN 201420203981U CN 203907348 U CN203907348 U CN 203907348U
- Authority
- CN
- China
- Prior art keywords
- backlight module
- reflectance coating
- faced adhesive
- double faced
- adhesive tape
- 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 - Fee Related
Links
- 239000002390 adhesive tape Substances 0.000 claims abstract description 50
- 239000003292 glue Substances 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims description 88
- 238000000576 coating method Methods 0.000 claims description 88
- 230000011514 reflex Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
Abstract
The utility model discloses a backlight module and a display device. The backlight module comprises a reflecting film and a glue frame, wherein the reflecting film is adhered to the glue frame through double faced adhesive tapes; the double faced adhesive tapes are arranged on the edges of the reflecting film in a discontinuous manner. In the backlight module and the display device provided by the utility model, the backlight module adopts the discontinuous double faced adhesive tapes to fix the reflecting film; sufficient expansion space can be further provided for the reflecting film while the reflecting film is fixed; the risk that the reflecting film is folded after the reliability test of a display module is reduced, so that the picture quality of the display module under serious conditions of high temperature or high temperature and high humidity is ensured; besides, the reflecting film is adhered to the glue frame through the double faced adhesive tapes, so that the positioning on the reflecting film is realized.
Description
Technical field
The utility model relates to Display Technique field, relates in particular to a kind of backlight module and display unit.
Background technology
Growing in intensity of the ultrathin of intelligent terminal product, high brightness trend, has higher requirement to demonstration module, and then backlight module has also been proposed to highlighted ultra-thin requirement.The film material of backlight module comprises reflectance coating, LGP, diffusion barrier, prism film etc.Fig. 1 is the structural representation of a kind of backlight module in prior art, Fig. 2 is the structural representation of the reflectance coating in backlight module shown in Fig. 1, Fig. 3 is the structural representation that shown in Fig. 1, the double faced adhesive tape in backlight module invests reflectance coating, and Fig. 4 is the A-A profile before the test of backlight module reliability shown in Fig. 1.As Figure 1-4, reflectance coating 110 is fitted by double faced adhesive tape 130 with glue frame 120, and double faced adhesive tape 130 is attached on the edge of reflectance coating 110 uninterruptedly.Reflectance coating 110 can Wei3M company the enhanced specular reflectivity sheet (Enhanced Specular Reflector, hereinafter to be referred as ESR) of high reflectance, this ESR can promote the brightness of the backlight under equal conditions.Yet reflectance coating of the prior art, after reliability test, especially, under high temperature or the harsh condition such as hot and humid, has the risk that occurs film material fold.Fig. 5 is the A-A profile after the test of backlight module reliability shown in Fig. 1.As shown in Figure 5, after the test of backlight module reliability, because double faced adhesive tape 130 is excessive with the area of attachment of reflectance coating 110, limit the expansion of reflectance coating 110, under high temperature or hot and humid condition, produced fold as shown in Figure 5.Fig. 6 is the effect schematic diagram before a kind of backlight module reliability test in prior art, and Fig. 7 is the effect schematic diagram after the test of backlight module reliability shown in Fig. 6.As shown in Figure 7, fold, the especially central part of display frame appearance similar " water ripples " after the test of backlight module reliability.
In sum, demonstration module of the prior art is after reliability test, and especially under high temperature or the harsh condition such as hot and humid, fold easily appears in reflectance coating.
Utility model content
For addressing the above problem, the utility model provides a kind of backlight module and display unit, for solving prior art reflectance coating, easily occurs the problem of fold under high temperature or the rigor condition such as hot and humid.
For this reason, the utility model provides a kind of backlight module.Described backlight module comprises reflectance coating and glue frame, and described reflectance coating and described glue frame are fitted by double faced adhesive tape, and described double faced adhesive tape is interrupted the edge that is arranged at described reflectance coating.
Preferably, the edge of described reflectance coating is provided with projection, and described double faced adhesive tape is positioned at described at least one on projection.
Preferably, described projection is distributed in the first side being oppositely arranged and the second side of described reflectance coating.
Preferably, described projection is uniformly distributed in described first side and second side.
Preferably, described double faced adhesive tape is positioned on all projections of first side of described reflectance coating and is positioned at least one projection of described second side.
Preferably, described double faced adhesive tape is positioned at the 3rd side and the four side being oppositely arranged of described reflectance coating.
Preferably, the 3rd side and the four side that described projection is distributed in the first side being oppositely arranged of described reflectance coating and second side and is oppositely arranged.
Preferably, described projection is uniformly distributed in described first side, second side, the 3rd side and four side.
Preferably, described double faced adhesive tape is positioned on all projections of described reflectance coating.
The utility model also provides a kind of display unit, comprises above-mentioned arbitrary backlight module.
The utlity model has following beneficial effect:
In backlight module and display unit that the utility model provides, backlight module adopts the double faced adhesive tape fixation reflex film being interrupted, in fixation reflex film, can also give the expansion space enough with reflectance coating, reduced after showing the test of module reliability the risk of reflectance coating fold has occurred, thereby guaranteed to show under high temperature or the rigor condition such as hot and humid the picture quality of module.In addition, reflectance coating and glue frame are fitted by double faced adhesive tape, thereby have realized the location to reflectance coating.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of backlight module in prior art;
Fig. 2 is the structural representation of the reflectance coating in backlight module shown in Fig. 1;
Fig. 3 is the structural representation that shown in Fig. 1, the double faced adhesive tape in backlight module invests reflectance coating;
Fig. 4 is the A-A profile before the test of backlight module reliability shown in Fig. 1;
Fig. 5 is the A-A profile after the test of backlight module reliability shown in Fig. 1;
Fig. 6 is the effect schematic diagram before a kind of backlight module reliability test in prior art;
Fig. 7 is the effect schematic diagram after the test of backlight module reliability shown in Fig. 6;
The structural representation of a kind of backlight module that Fig. 8 provides for the utility model embodiment mono-;
Fig. 9 is the structural representation of the reflectance coating in backlight module shown in Fig. 8;
Figure 10 is the structural representation that shown in Fig. 8, the double faced adhesive tape in backlight module invests reflectance coating;
Figure 11 is the B-B profile before the test of backlight module reliability shown in Fig. 8;
Figure 12 is the B-B profile after the test of backlight module reliability shown in Fig. 8;
The structural representation of a kind of backlight module that Figure 13 provides for the utility model embodiment bis-;
Figure 14 is the structural representation of the reflectance coating in backlight module shown in Figure 13;
Figure 15 is the structural representation that shown in Figure 13, the double faced adhesive tape in backlight module invests reflectance coating;
Effect schematic diagram before a kind of backlight module reliability that Figure 16 provides for the utility model is tested;
Figure 17 is the effect schematic diagram after the test of backlight module reliability shown in Figure 16.
The specific embodiment
For making those skilled in the art understand better the technical solution of the utility model, the backlight module and the display unit that the utility model are provided below in conjunction with accompanying drawing are described in detail.
The structural representation of a kind of backlight module that Fig. 8 provides for the utility model embodiment mono-, Fig. 9 is the structural representation of the reflectance coating in backlight module shown in Fig. 8, Figure 10 is the structural representation that shown in Fig. 8, the double faced adhesive tape in backlight module invests reflectance coating.As shown in Fig. 8, Figure 10, backlight module comprises reflectance coating 110 and glue frame 120, and described reflectance coating 110 is fitted by double faced adhesive tape 130 with glue frame 120, and described double faced adhesive tape 130 is interrupted the edge that is arranged at reflectance coating 110.The edge of described reflectance coating 110 is provided with projection 210, and double faced adhesive tape 130 is positioned at least one projection 210.
In the present embodiment, described projection 130 is distributed in the first side being oppositely arranged and the second side of reflectance coating 110.Preferably, described projection 210 is uniformly distributed in described first side and second side.As shown in Figure 9, the both sides of reflectance coating 110 are respectively arranged with three projections and symmetrical.The double faced adhesive tape 130 that the present embodiment provides is positioned on all projections of first side of reflectance coating 110 and is positioned at least one projection of second side.As shown in figure 10, three projections of the first side of reflectance coating 110 are all coated with double faced adhesive tape 130, and the middle projection of second side is also coated with double faced adhesive tape 130.In the present embodiment, described double faced adhesive tape 130 is positioned at the 3rd side and the four side being oppositely arranged of reflectance coating 110.As shown in figure 10, the 3rd side and the four side of reflectance coating 110 are oppositely arranged, and are coated with double faced adhesive tape 130 on described the 3rd side and four side.
Figure 11 is the B-B profile before the test of backlight module reliability shown in Fig. 8, and Figure 12 is the B-B profile after the test of backlight module reliability shown in Fig. 8.Figure 11, Figure 12 and Fig. 4, Fig. 5 are compared, can find out that in the backlight module that the present embodiment provides, double faced adhesive tape 130 carries out discontinuous attaching with reflectance coating 110, not only can guarantee that glue frame 120 is tight with reflectance coating 110 laminatings, and after reliability test, reflectance coating 110 also has enough expansion spaces, reflectance coating 110 can be stretched, reduce the degree of reflectance coating 110 folds, finally can guarantee the picture quality of backlight module under high temperature or the rigor condition such as hot and humid.
The backlight module that the present embodiment provides adopts the double faced adhesive tape fixation reflex film being interrupted, in fixation reflex film, can also give the expansion space enough with reflectance coating, reduced after showing the test of module reliability the risk of reflectance coating fold has occurred, thereby guaranteed to show under high temperature or the rigor condition such as hot and humid the picture quality of module.In addition, reflectance coating and glue frame are fitted by double faced adhesive tape, thereby have realized the location to reflectance coating.
The structural representation of a kind of backlight module that Figure 13 provides for the utility model embodiment bis-, Figure 14 is the structural representation of the reflectance coating in backlight module shown in Figure 13, Figure 15 is the structural representation that shown in Figure 13, the double faced adhesive tape in backlight module invests reflectance coating.As shown in Figure 13, Figure 15, backlight module comprises reflectance coating 110 and glue frame 120, and described reflectance coating 110 is fitted by double faced adhesive tape 130 with glue frame 120, and described double faced adhesive tape 130 is interrupted the edge that is arranged at reflectance coating 110.The edge of reflectance coating 110 is provided with projection 210, and double faced adhesive tape 130 is positioned at least one projection 210.
In the present embodiment, the 3rd side and the four side that projection 210 is distributed in the first side being oppositely arranged of reflectance coating 110 and second side and is oppositely arranged.As shown in figure 14, first side and the second side of described reflectance coating 110 are oppositely arranged, and the 3rd side and four side are oppositely arranged, and described first side, second side, the 3rd side and four side are provided with projection 210.The projection 210 that the present embodiment provides is uniformly distributed in described first side, second side, the 3rd side and four side.As shown in figure 14, the first side of reflectance coating 110 and second side are evenly distributed with respectively three projections and symmetrical, and the 3rd side and four side are evenly distributed with respectively two projections and symmetrical.The double faced adhesive tape 130 that the present embodiment provides is positioned on all projections of reflectance coating 110.As shown in figure 15,8 of reflectance coating 110 projections 210 are all coated with double faced adhesive tape 130.
The backlight module that the present embodiment provides adopts the double faced adhesive tape fixation reflex film being interrupted, in fixation reflex film, can also give the expansion space enough with reflectance coating, reduced after showing the test of module reliability the risk of reflectance coating fold has occurred, thereby guaranteed to show under high temperature or the rigor condition such as hot and humid the picture quality of module.In addition, reflectance coating and glue frame are fitted by double faced adhesive tape, thereby have realized the location to reflectance coating.
The utility model also provides a kind of display unit, comprises the backlight module that embodiment mono-or embodiment bis-provide.The display unit that the utility model provides adopts the double faced adhesive tape fixation reflex film being interrupted, in fixation reflex film, can also give the expansion space enough with reflectance coating, reduced after showing the test of module reliability the risk of reflectance coating fold has occurred, thereby guaranteed to show under high temperature or the rigor condition such as hot and humid the picture quality of module.In addition, reflectance coating and glue frame are fitted by double faced adhesive tape, thereby have realized the location to reflectance coating.
The process of the reliability test of backlight module above-described embodiment one or embodiment bis-being provided below by a concrete example is specifically described.Described reliability test refers to the checking (for example, high temperature, high pressure, plug, conducting etc.) of the related functionality that the application under real work condition is carried out by analog equipment, thereby guarantees that product meets related request.Effect schematic diagram before a kind of backlight module reliability that Figure 16 provides for the utility model is tested, Figure 17 is the effect schematic diagram after the test of backlight module reliability shown in Figure 16.The condition of this reliability test is: 60 ℃, 90%rh, observed tested backlight module after 48 hours.As shown in figure 17, only there is the fold of similar " water ripples " on a small quantity at central part in the display frame after tested backlight module reliability test.Figure 17 and Fig. 7 are compared, can find out that the backlight module that above-described embodiment one or embodiment bis-provide adopts double faced adhesive tape 130 and reflectance coating 110 to carry out discontinuous attaching, not only can guarantee that glue frame 120 is tight with reflectance coating 110 laminatings, and after reliability test, reflectance coating 110 also has enough expansion spaces, reflectance coating 110 can be stretched, reduce the degree of reflectance coating 110 folds, finally can guarantee the picture quality of backlight module under high temperature or the rigor condition such as hot and humid.
In backlight module and display unit that the utility model provides, backlight module adopts the double faced adhesive tape fixation reflex film being interrupted, in fixation reflex film, can also give the expansion space enough with reflectance coating, reduced after showing the test of module reliability the risk of reflectance coating fold has occurred, thereby guaranteed to show under high temperature or the rigor condition such as hot and humid the picture quality of module.In addition, reflectance coating and glue frame are fitted by double faced adhesive tape, thereby have realized the location to reflectance coating.
Be understandable that, above embodiment is only used to principle of the present utility model is described and the illustrative embodiments that adopts, yet the utility model is not limited to this.For those skilled in the art, in the situation that not departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection domain of the present utility model.
Claims (10)
1. a backlight module, is characterized in that, comprises reflectance coating and glue frame, and described reflectance coating and described glue frame are fitted by double faced adhesive tape, and described double faced adhesive tape is interrupted the edge that is arranged at described reflectance coating.
2. backlight module according to claim 1, is characterized in that, the edge of described reflectance coating is provided with projection, and described double faced adhesive tape is positioned at described at least one on projection.
3. backlight module according to claim 2, is characterized in that, described projection is distributed in the first side being oppositely arranged and the second side of described reflectance coating.
4. backlight module according to claim 3, is characterized in that, described projection is uniformly distributed in described first side and second side.
5. according to the backlight module described in claim 3 or 4, it is characterized in that, described double faced adhesive tape is positioned on all projections of first side of described reflectance coating and is positioned at least one projection of described second side.
6. backlight module according to claim 5, is characterized in that, described double faced adhesive tape is positioned at the 3rd side and the four side being oppositely arranged of described reflectance coating.
7. backlight module according to claim 2, is characterized in that, the 3rd side and the four side that described projection is distributed in the first side being oppositely arranged of described reflectance coating and second side and is oppositely arranged.
8. backlight module according to claim 7, is characterized in that, described projection is uniformly distributed in described first side, second side, the 3rd side and four side.
9. according to the backlight module described in claim 7 or 8, it is characterized in that, described double faced adhesive tape is positioned on all projections of described reflectance coating.
10. a display unit, is characterized in that, comprises arbitrary described backlight module in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203981.5U CN203907348U (en) | 2014-04-24 | 2014-04-24 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203981.5U CN203907348U (en) | 2014-04-24 | 2014-04-24 | Backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203907348U true CN203907348U (en) | 2014-10-29 |
Family
ID=51781623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420203981.5U Expired - Fee Related CN203907348U (en) | 2014-04-24 | 2014-04-24 | Backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203907348U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748020A (en) * | 2015-04-27 | 2015-07-01 | 京东方科技集团股份有限公司 | Backlight module, display panel and display device |
| CN108302381A (en) * | 2017-01-13 | 2018-07-20 | 矽创电子股份有限公司 | Back lighting device |
| US10107955B2 (en) | 2015-04-27 | 2018-10-23 | Boe Technology Group Co., Ltd. | Display backlight module having double-side adhesive blocks |
| WO2022183746A1 (en) * | 2021-03-05 | 2022-09-09 | 京东方科技集团股份有限公司 | Backlight module and method for manufacturing same, and display device |
-
2014
- 2014-04-24 CN CN201420203981.5U patent/CN203907348U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748020A (en) * | 2015-04-27 | 2015-07-01 | 京东方科技集团股份有限公司 | Backlight module, display panel and display device |
| US10107955B2 (en) | 2015-04-27 | 2018-10-23 | Boe Technology Group Co., Ltd. | Display backlight module having double-side adhesive blocks |
| CN108302381A (en) * | 2017-01-13 | 2018-07-20 | 矽创电子股份有限公司 | Back lighting device |
| CN108302381B (en) * | 2017-01-13 | 2020-02-18 | 矽创电子股份有限公司 | Backlight device |
| WO2022183746A1 (en) * | 2021-03-05 | 2022-09-09 | 京东方科技集团股份有限公司 | Backlight module and method for manufacturing same, and display device |
| US20240012289A1 (en) * | 2021-03-05 | 2024-01-11 | Fuzhou Boe Optoelectronics Technology Co., Ltd. | Backlight module and method for manufacturing same, and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 |