CN202303053U - Backlight module without light guide plate - Google Patents
Backlight module without light guide plate Download PDFInfo
- Publication number
- CN202303053U CN202303053U CN2011204163033U CN201120416303U CN202303053U CN 202303053 U CN202303053 U CN 202303053U CN 2011204163033 U CN2011204163033 U CN 2011204163033U CN 201120416303 U CN201120416303 U CN 201120416303U CN 202303053 U CN202303053 U CN 202303053U
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- CN
- China
- Prior art keywords
- light
- rear plate
- lgp
- backboard
- module backlight
- 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
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Abstract
The utility model discloses a backlight module without a light guide plate. The backlight module comprises a rear plate and light emitting sources, wherein the lower surface of the rear plate is flat and straight while a central embossment is formed in the center of the upper surface of the rear plate, and the upper surface of the rear plate is a centrosymmetric curved surface extended to the edge of the rear plate along the central embossment; at least one annular embossment is formed on the curved surface; and the light emitting sources are arranged at four opposite angles of the rear plate. As the light emitting sources are arranged on the four opposite angles of the rear plate for introducing light, the reflection sheet is attached to the rear plate by a design of the curved surface of the rear plate, and light rays are output from the front surface of the rear plate by light reflection, the light sources can be uniformly diffused, and the utilization efficiency of light can be improved, moreover the number of light guide plates in the traditional LCD (Liquid Crystal Display) can be reduced, therefore the cost is saved. Due to the design of the curved surface of the rear plate with four opposite angles for light introduction and emission, the phenomenon of dark corners and dark edges can be removed, and the central brightness also can meet the requirement, moreover the backlight module is simple in structure and easy to realize.
Description
Technical field
The utility model relates to a kind of module backlight that does not have LGP.
Background technology
It is side or straight-down negative light inlet that current LCD module great majority backlight all have LGP and light inlet mode; Also occurred a spot of no LGP LCD module backlight in the market, the focus technology of no LGP LCD module backlight is how position and reflector plate that how light emitting source to be set derived light and become the good LCD of uniformity module backlight from the front.
It is all unreasonable that but the light emitting source of no LGP LCD of the prior art module backlight and the position of reflector plate are provided with, and the uniformity that light is derived from the front is not so good, and light utilization efficiency is not high.
Therefore, prior art awaits to improve and development.
The utility model content
In view of the deficiency of above-mentioned prior art, the purpose of the utility model is to provide a kind of module backlight that does not have LGP, and it can evenly exhale light source, and can improve the utilization ratio of light, and simple in structure, realizes easily.
The technical scheme of the utility model is following:
A kind of module backlight that does not have LGP; Comprise backboard and light emitting source; Wherein, The lower surface of said backboard is straight and upper surface in be formed centrally a central protuberance, and upper surface is the centrosymmetric curved surface that extends along said central protuberance toward back plate edge, forms the annular protrusion of at least one on this curved surface.
The module backlight of said no LGP, wherein, said light emitting source is arranged on four diagonal angles of said backboard.
The module backlight of said no LGP, wherein, said backboard is provided with reflection unit.
The module backlight of said no LGP, wherein, said reflection unit is the reflector plate that is attached on the said backboard.
The module backlight of said no LGP, wherein, said light emitting source is obliquely installed four diagonal angles at said backboard, and the face at light emitting source place becomes a predetermined angle setting with horizontal plane.
The module backlight of said no LGP, wherein, said light emitting source is a LED lamp bar.
The module backlight of said no LGP, wherein, said LED lamp bar and backboard plane included angle θ are 30 and spend to an angle of 90 degrees.
The module backlight of said no LGP, wherein, said angle theta is 45 degree.
The module backlight of said no LGP, wherein, said angle theta is 60 degree.
The module backlight that the utility model provided is arranged on light inlet on four diagonal angles of said backboard owing to adopted with light emitting source, through the backboard curved design reflector plate is attached on the backboard; Through reflection of light light is derived from the front, it can evenly exhale light source, and can improve the utilization ratio of light; And can reduce the LGP among the traditional LC D, thus cost practiced thrift, owing to be four equal light inlets in diagonal angle and the curved design of launching backboard; So can eliminate the phenomenon of dark angle, dark side; And the center briliancy also can reach requirement, and simple in structure, realizes easily.
Description of drawings
Fig. 1 is the back light module unit structure sketch map of the no LGP of the utility model embodiment.
Fig. 2 is module central point backlight and the cross-sectional view of diagonal angle line of the no LGP of the utility model embodiment.
The specific embodiment
The utility model provides a kind of module backlight that does not have LGP, for purpose, technical scheme and the effect that makes the utility model is clearer, clear and definite, below with reference to accompanying drawing and give an actual example to the utility model further explain.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
A kind of module backlight that does not have LGP of the utility model embodiment is mainly used in the module backlight of making the LCD LCDs, and is as shown in Figure 1, and the module backlight of this no LGP comprises the backboard 100 that is used to be installed in behind the LCDs, and a plurality of light emitting sources 200.Light emitting source described in the present embodiment 200 is arranged on four diagonal angles of said backboard 100, and is as illustrated in fig. 1 and 2, and said backboard 100 comprises lower surface 108 and upper surface 109; Its lower surface 108 is straight and upper surface 109 in be formed centrally a central protuberance 101; And upper surface is the centrosymmetric curved surface that extends along central protuberance 101 toward back plate 100 edges, forms the annular protrusion 102 of at least one on this curved surface, the crest location of 102 expression annular protrusions as shown in Figure 2; Said backboard 100 is provided with reflection unit; Preferably, said reflection unit is the reflector plate 110 that is attached on the said backboard, makes to be arranged on the light source that the light emitting source 200 on 100 4 diagonal angles of backboard sends; Light through the reflector plate 110 that is attached on said backboard 100 upper surfaces reflects evenly reflects bright dippings from said backboard 100 fronts.
Preferably adopt said light emitting source 200 to be obliquely installed on four diagonal angles of said backboard 100; And the face at light emitting source 200 places becomes a predetermined angle theta setting with horizontal plane; The cross section index path of present embodiment as shown in Figure 2; As shown in the figure, the section line of the contact-making surface of this backboard is smoothed curve, and backboard is provided with central protuberance 101 and annular protrusion 102.Said light emitting source 200 is a LED lamp bar; The central axis of the face at this LED lamp bar place becomes a predetermined angle theta setting with the backboard horizontal plane; This angle theta be set to 30 spend to an angle of 90 degrees preferable; Preferably adopt said θ to be set to 60 or 45 degree, so that source light can fully incide on the reflecting surface, can make full use of light so like this.
Among the utility model embodiment, said light emitting source 200 is adopted as LED lamp bar, and the LED of certain said LED lamp bar also can increase employing LED lamp illuminating lens (LED LENS).
In sum, the module backlight that the utility model provided is arranged on light inlet on four diagonal angles of said backboard owing to adopted with light emitting source; Through the backboard curved design reflector plate is attached on the backboard, through reflection of light light is derived from the front, it can evenly exhale light source; And can improve the utilization ratio of light, and can reduce the LGP among the traditional LC D, thus practice thrift cost; Because adopt four equal light inlets in diagonal angle and the curved design of launching backboard, thus can eliminate the phenomenon of dark angle, dark side, and also the center briliancy also can reach requirement; And simple in structure, realize easily.
Should be understood that; The application of the utility model is not limited to above-mentioned giving an example; Concerning those of ordinary skills, can improve or conversion according to above-mentioned explanation, all these improvement and conversion all should belong to the protection domain of the utility model accompanying claims.
Claims (9)
1. module backlight that does not have LGP; Comprise backboard and light emitting source; It is characterized in that; The lower surface of said backboard is straight and upper surface in be formed centrally a central protuberance, and upper surface is the centrosymmetric curved surface that extends along said central protuberance toward back plate edge, forms the annular protrusion of at least one on this curved surface.
2. according to the module backlight of the said no LGP of claim 1, it is characterized in that said light emitting source is arranged on four diagonal angles of said backboard.
3. according to the module backlight of claim 1 or 2 said no LGPs, it is characterized in that said backboard is provided with light reflecting device.
4. according to the module backlight of the said no LGP of claim 3, it is characterized in that said reflection unit is the reflector plate that is attached on the said backboard.
5. according to the module backlight of the said no LGP of claim 3, it is characterized in that said light emitting source is obliquely installed four diagonal angles at said backboard, and the face at light emitting source place becomes a predetermined angle setting with horizontal plane.
6. according to the module backlight of the said no LGP of claim 5, it is characterized in that said light emitting source is a LED lamp bar.
7. according to the module backlight of the said no LGP of claim 6, it is characterized in that said LED lamp bar and backboard plane included angle θ are 30 and spend to an angle of 90 degrees.
8. according to the module backlight of the said no LGP of claim 7, it is characterized in that said angle theta is 45 degree.
9. according to the module backlight of the said no LGP of claim 7, it is characterized in that said angle theta is 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204163033U CN202303053U (en) | 2011-10-27 | 2011-10-27 | Backlight module without light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204163033U CN202303053U (en) | 2011-10-27 | 2011-10-27 | Backlight module without light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202303053U true CN202303053U (en) | 2012-07-04 |
Family
ID=46371942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204163033U Expired - Fee Related CN202303053U (en) | 2011-10-27 | 2011-10-27 | Backlight module without light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202303053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017028A (en) * | 2012-12-03 | 2013-04-03 | 彩虹集团公司 | Light guide plate-free light-emitting diode (LED) backlight module |
-
2011
- 2011-10-27 CN CN2011204163033U patent/CN202303053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017028A (en) * | 2012-12-03 | 2013-04-03 | 彩虹集团公司 | Light guide plate-free light-emitting diode (LED) 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: 20120704 Termination date: 20151027 |
|
| EXPY | Termination of patent right or utility model |