CN204141397U - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN204141397U CN204141397U CN201420575755.XU CN201420575755U CN204141397U CN 204141397 U CN204141397 U CN 204141397U CN 201420575755 U CN201420575755 U CN 201420575755U CN 204141397 U CN204141397 U CN 204141397U
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- led lamp
- lamp bar
- light source
- 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
- 239000003292 glue Substances 0.000 claims abstract description 8
- 238000007323 disproportionation reaction Methods 0.000 abstract description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000002310 reflectometry Methods 0.000 description 2
- 101100117236 Drosophila melanogaster speck gene Proteins 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
- 230000004446 light reflex Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Planar Illumination Modules (AREA)
Abstract
The utility model provides a kind of backlight module, comprise a backboard, a LED lamp bar light source, a reflector plate, a light guide plate, a glue frame, described light guide plate is divided near the incident side of LED lamp bar light source and the light emission side away from LED lamp bar light source, described LED lamp bar light source is positioned at the side of light guide plate, described reflector plate is positioned at the below of light guide plate, in described light guide plate incident side, the outline edge of described reflector plate is shorter than the outline edge of light guide plate.The utility model, by making incident side reflector plate shorter than light guide plate, solves the problem of backlight module brightness disproportionation.
Description
Technical field
The utility model relates to field of liquid crystal display, specifically relates to a kind of backlight module.
Background technology
Liquid crystal display obtains extensive use with its excellent quality, liquid crystal not luminous needs one backlight module itself provides light source, for making, from all angles, all there is preferably viewing effect, the requirement of LCDs demand fulfillment brightness homogeneity, therefore requires that the brightness of the emergent light of backlight module must be evenly.But, current liquid crystal display generally adopts LED light source, because the relation of energy consumption, LED uses a number relatively less, the power of single LEDs is larger, brightness is higher, and simultaneously for meeting the aesthetic of vast customer users, LED liquid crystal television is more and more thinner, frame is more and more narrow, therefore, in the process of structural design, to the distance in the territory, effective display area of liquid crystal display, LED needs to accomplish that shorter and shorter, above etc. factor easily causes the phenomenon of the bright dark inequality of incident side.
Side entrance back module (LED lamp bar light source is placed on the side of light guide plate) has become the main flow of prior art in recent years.Fig. 1 is prior art side entrance back module exploded view, this side entrance back module comprises a backboard 102, one LED lamp bar light source 100, one light guide plate 103, one reflector plate 101 is positioned at the below of described light guide plate, some blooming pieces 107 are positioned at the top of light guide plate 103, and a glue frame 108 is assembled.Fig. 2 is the existing structure design that reflector plate slightly exceeds light-guide edge, Fig. 3 be reflector plate concordant with light guide plate existing structure design, the brightness of LED lamp bar light source 100 is higher, after light guide plate 103, after reflector plate 101 reflects, in the pip region that reflector plate 101 is nearer apart from LED lamp bar light source 100, the phenomenon of the LED shadow 105 occurred is comparatively obvious, and experimentally result, the place that reflector plate distance LED is nearer, lamp shadow is brighter, more obvious; Thus to cause in the surface presentation result out of panel 104 be exactly bright dark inequality.
Utility model content
For solving the problem, the utility model provides a kind of backlight module, and by light guide plate incident side, the outline edge of reflector plate is shorter than the outline edge of light guide plate, when not increasing cost, solves the bright dark uneven phenomenon of backlight module in incident side.
The utility model provides a kind of backlight module, comprise a backboard, a LED lamp bar light source, a reflector plate, a light guide plate, a glue frame, described light guide plate is divided near the incident side of LED lamp bar light source and the light emission side away from LED lamp bar light source, described LED lamp bar light source is positioned at the side of light guide plate, described reflector plate is positioned at the below of light guide plate, in described light guide plate incident side, the outline edge of described reflector plate is shorter than the outline edge of light guide plate.Spacing is left in the outline edge of described reflector plate and the inside edge of described glue frame.
The utility model, by making incident side reflector plate shorter than light guide plate, solves the problem of backlight module brightness disproportionation.
Accompanying drawing explanation
Fig. 1 is prior art side entrance back module exploded view;
Fig. 2 is the existing structure design diagram that reflector plate slightly exceeds light-guide edge;
Fig. 3 is the reflector plate existing structure design diagram concordant with light guide plate;
Fig. 4 is the utility model back light module unit structure schematic diagram;
Fig. 5 is the enlarged drawing of Fig. 4 circled portion;
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
Fig. 4 is the utility model back light module unit structure schematic diagram, this backlight module comprises backboard 102, LED lamp bar light source 100, reflector plate 101, light guide plate 103, glue frame 108, described light guide plate 103 is divided near the incident side of LED lamp bar light source 100 and the light emission side away from LED lamp bar light source 100, described LED lamp bar light source 100 is positioned at the side of light guide plate 103, and described reflector plate 101 is positioned at the below of light guide plate 103.Fig. 5 is the enlarged drawing of circled portion in Fig. 4, in light guide plate 103 incident side, described reflection, the outline edge of 101 is shorter than the outline edge of light guide plate 103, the brightness of LED lamp bar light source 100 is higher, after light guide plate 103, directly be incident upon on backboard 102, although be emergency light reflex district herein, but because the reflectivity of backboard 102 is well below the reflectivity of reflector plate 101, backboard 102 is near the position of LED lamp bar light source 100, there will not be the speck that strong reverberation causes, thus make whole picture look comparatively even, spacing is left in the outline edge of described reflector plate 101 and the inside edge of described glue frame 108.
The utility model passes through in light guide plate incident side, and the outline edge of reflector plate is shorter than the outline edge of light guide plate, when not increasing cost, solves the bright dark uneven phenomenon of backlight module in incident side.
Claims (2)
1. a backlight module, comprise a backboard, a LED lamp bar light source, a reflector plate, a light guide plate, a glue frame, described light guide plate is divided near the incident side of LED lamp bar light source and the light emission side away from LED lamp bar light source, described LED lamp bar light source is positioned at the side of light guide plate, described reflector plate is positioned at the below of light guide plate, it is characterized in that: in described light guide plate incident side, the outline edge of described reflector plate is shorter than the outline edge of light guide plate.
2. backlight module according to claim 1, is characterized in that: spacing is left in the outline edge of described reflector plate and the inside edge of described glue frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420575755.XU CN204141397U (en) | 2014-09-30 | 2014-09-30 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420575755.XU CN204141397U (en) | 2014-09-30 | 2014-09-30 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204141397U true CN204141397U (en) | 2015-02-04 |
Family
ID=52418080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420575755.XU Expired - Fee Related CN204141397U (en) | 2014-09-30 | 2014-09-30 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204141397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022077768A1 (en) * | 2020-10-14 | 2022-04-21 | 广州视源电子科技股份有限公司 | Side entry type backlight module |
-
2014
- 2014-09-30 CN CN201420575755.XU patent/CN204141397U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022077768A1 (en) * | 2020-10-14 | 2022-04-21 | 广州视源电子科技股份有限公司 | Side entry type backlight module |
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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: 20150204 |