CN203349082U - Direct type backlight module - Google Patents
Direct type backlight module Download PDFInfo
- Publication number
- CN203349082U CN203349082U CN2013203784793U CN201320378479U CN203349082U CN 203349082 U CN203349082 U CN 203349082U CN 2013203784793 U CN2013203784793 U CN 2013203784793U CN 201320378479 U CN201320378479 U CN 201320378479U CN 203349082 U CN203349082 U CN 203349082U
- Authority
- CN
- China
- Prior art keywords
- backlight module
- reflection sheet
- reflector plate
- direct type
- corners
- 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
- 239000002184 metal Substances 0.000 claims abstract description 10
- 239000002390 adhesive tape Substances 0.000 claims abstract description 8
- 230000005142 aphototropism Effects 0.000 claims description 9
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000003292 glue Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a direct type backlight module, and particularly relates to a direct type LED backlight module used for a liquid crystal display, wherein the luminance of corners of the direct type backlight module is improved. The direct type backlight module comprises a metal backboard, an LED array light source installed on the metal backboard, and a reflection sheet located on the LED array light source, wherein the reflection sheet has at least one reversed straight angle. The reflection sheet comprises side edges formed by folding the reflection sheet along folding lines. The end portion of each side edge is provided with double faced adhesive tape adhering to one reversed straight angle. The side edges and the reversed straight angles of the reflection sheet are connected through the double faced adhesive tape. Due to the fact that the corners of the reflection sheet are folded to be the reversed straight angles, the corners are made to have the reflection function, and then the luminance of the corners or edge areas of the backlight module is improved. Meanwhile, corner reflection structures are not needed to be additionally arranged, so that the manufacturing cost is saved.
Description
Technical field
The utility model relates to a kind of down straight aphototropism mode set, particularly relates to a kind of module of the direct-light type LED backlight for liquid crystal display, and it is suitable for for improving the brightness in down straight aphototropism mode set corner.
Background technology
Liquid crystal indicator comprises a liquid crystal panel and a back light system.This liquid crystal panel is comprised of layer glass substrate therebetween one liquid crystal layer, and the outer surface up and down of glass substrate posts polaroid; Because liquid crystal panel itself is not luminous, therefore need back light system to provide bright dipping uniform surface light source system for it.That LED has is pollution-free, volume is little, vibration resistance, the luminous characteristics of low energy consumption high-efficiency, become the light source be widely used in the LCD backlight module, in direct-type backlight, follow the use of high-power subsidiary secondary lens LED, the quantity of middle light source backlight is also fewer and feweri.This will cause the air line distance at the nearest LED light source in distance four angles backlight and four angles backlight to increase, thereby four angles backlight all the other light-emitting zone brightness relatively backlight are low.
For the problem of the brightness irregularities of the brightness of four angular zones solving above-mentioned backlight module and exiting surface backlight, existing improvement scheme is to be provided with catoptric arrangement in four corners of backlight module, and this catoptric arrangement can effectively improve the brightness at four angles.Be illustrated in figure 1 the three-dimensional exploded view of available liquid crystal display, this liquid crystal display has a liquid crystal panel 30 usually; One front frame 20, be placed on liquid crystal panel 30 tops fixer crystal panel 30; One backlight module 10, have a light emitting diode matrix 103, can be also the powerful LED array with secondary lens, is arranged on metal backing 101; One group of framework 102, can be also whole glue frame, is arranged on the surrounding periphery of backboard 101, above formation direct type backlight module.Be provided with multi-layer optical membrane 40 between liquid crystal panel 30 and backlight module 10, to increase light utilization efficiency and improving luminous efficiency, multi-layer optical membrane 40 can comprise diffusion sheet, prismatic lens, composite membrane, diffuser plate etc.The corner regions of backboard 101 is provided with catoptric arrangement 104, and this catoptric arrangement 104 is used for avoiding backlight module corner or edge to have blanking bar to produce, so that the brightness of backlight module is more even.
Be provided with the reflection subassembly structure by four corners at backlight module, to improve the brightness of backlight module corner or fringe region, and, through the sample laboratory tests, improve effect very effective.But increased the corner catoptric arrangement in backlight module, increased manufacturing cost.
The utility model content
In order to overcome prior art because increasing the corner catoptric arrangement, and increase the problem of manufacturing cost, the utility model provides a kind of down straight aphototropism mode set, comprising: a metal backing, and a LED array light source, be arranged on metal backing; One reflector plate, be positioned on the LED array light source; Described reflector plate has at least one to be down flat angle.
Further, described reflector plate comprises and side that form folding along broken line;
Further, be provided with in the end of described side with described and be down flat the double faced adhesive tape that angle is pasted mutually;
Further, be provided with double faced adhesive tape at the described edge that is down flat angle;
Further, described reflector plate also be provided with along broken line folding form along limit.
Beneficial effect: this programme is folded into and is down flat ，Shi bight, angle and has reflection by the bight by reflector plate, has improved the brightness of backlight module corner or fringe region.Simultaneously, not needing additionally increases the corner catoptric arrangement, has saved manufacturing cost.
The accompanying drawing explanation
Fig. 1 is a kind of decomposing schematic representation of prior art direct-light type LED backlight module;
To be that the utility model reflector plate structure is folding be arranged on the structural representation in backboard to Fig. 2;
Fig. 3 is the foldable structure schematic diagram of reflector plate of the present utility model;
Fig. 4 is the expansion schematic diagram of Fig. 3.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment and only for the utility model is described, be not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
The utility model has provided a kind of design of new backlight module, when meeting the homogeneity backlight of backlight module, has also saved manufacturing cost.
Be illustrated in figure 2 the structural representation of backlight module of the present utility model, this module comprises: a metal backing, and a LED array light source 203, be arranged on metal backing; One reflector plate 204, be positioned on LED array light source 203; Perhaps reflector plate is arranged on metal backing, and the LED array light source is positioned on reflector plate.The mesh one to one with the LED of LED array light source 203 is arranged on reflector plate 204.One group of framework 201, can be also whole glue frame, is arranged on the surrounding periphery of backboard.Framework 201 and backboard form the cavity of a carrying light source 203 and reflector plate 204; Diffuser plate and blooming piece be placed on above-mentioned cavity directly over.Glue frame and backplane card and, above-mentioned diffuser plate and blooming piece are fixed to above formation backlight module.
Wherein, above-mentioned reflector plate 204 at least a corner be provided with can improve the corner reflection efficiency be down flat corner structure 41, be illustrated in figure 3 the stereogram of reflector plate, what this reflector plate 204 comprised side 42, the base be connected with side and reflector plate is down flat angle 41.Wherein, reflector plate 204 has one jiao at least for being down flat corner structure.Side 42 is to form along broken line 101 is folding with being down flat angle 41, be illustrated in figure 4 the flattening figure of reflector plate, for the ease of folding, tangent line 102 is by side 42 and be down flat angle 41 sides separately, 421 places, end of side 42 are provided with double faced adhesive tape, for the end 421 by side 42 be down flat 42 edge, angle 103 and paste mutually.Perhaps be provided with double faced adhesive tape being down flat 103 places, 42 edge, angle, paste mutually with the end 421 of side 42 for being down flat 42 edge 103, angle.The side of reflector plate be down flat that angle is connected also can be by the edge at reflector plate reserved along limit, can fold by the broken line 105 on reflector plate can obtain being surrounded by the edge of reflector plate and broken line 105 along limit, be positioned at diffuser plate on reflector plate this is reserved while compressing along limit, can make the side of reflector plate be connected with the edge that is down flat angle.
Be folded into and be down flat ，Shi bight, angle and there is reflection by the bight by reflector plate, improved the brightness of backlight module corner or fringe region.The schemes at four jiaos of placement catoptric arrangements of prior art, save manufacturing cost relatively.
Claims (5)
1. a down straight aphototropism mode set comprises: a metal backing, and a LED array light source, be arranged on metal backing; One reflector plate, be positioned on the LED array light source; It is characterized in that: described reflector plate has at least one to be down flat angle.
2. down straight aphototropism mode set according to claim 1 is characterized in that: described reflector plate comprises and side that form folding along broken line.
3. down straight aphototropism mode set according to claim 2 is characterized in that: be provided with in the end of described side with described and be down flat the double faced adhesive tape that angle is pasted mutually.
4. down straight aphototropism mode set according to claim 1, is characterized in that: at the described edge that is down flat angle, be provided with double faced adhesive tape.
5. down straight aphototropism mode set according to claim 1 is characterized in that: described reflector plate also be provided with along broken line folding form along limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203784793U CN203349082U (en) | 2013-06-27 | 2013-06-27 | Direct type backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203784793U CN203349082U (en) | 2013-06-27 | 2013-06-27 | Direct type backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203349082U true CN203349082U (en) | 2013-12-18 |
Family
ID=49748979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203784793U Expired - Fee Related CN203349082U (en) | 2013-06-27 | 2013-06-27 | Direct type backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203349082U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515043A (en) * | 2014-12-31 | 2015-04-15 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN108700772A (en) * | 2015-12-17 | 2018-10-23 | 堺显示器制品株式会社 | Display device |
| WO2019037356A1 (en) * | 2017-08-21 | 2019-02-28 | 广州视源电子科技股份有限公司 | Direct type backlight module and display |
-
2013
- 2013-06-27 CN CN2013203784793U patent/CN203349082U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515043A (en) * | 2014-12-31 | 2015-04-15 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| US9983435B2 (en) | 2014-12-31 | 2018-05-29 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and display device |
| CN108700772A (en) * | 2015-12-17 | 2018-10-23 | 堺显示器制品株式会社 | Display device |
| CN108700772B (en) * | 2015-12-17 | 2021-08-27 | 堺显示器制品株式会社 | Display device |
| WO2019037356A1 (en) * | 2017-08-21 | 2019-02-28 | 广州视源电子科技股份有限公司 | Direct type backlight module and display |
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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: 20131218 |
|
| CX01 | Expiry of patent term | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 14, 2023, the expiration and termination of 39 volumes and 2802 issues of the patent Number: 28-02 Volume: 39 |
|
| CU01 | Correction of utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |