CN203147500U - LCD backlight module with optical film - Google Patents
LCD backlight module with optical film Download PDFInfo
- Publication number
- CN203147500U CN203147500U CN2013201247341U CN201320124734U CN203147500U CN 203147500 U CN203147500 U CN 203147500U CN 2013201247341 U CN2013201247341 U CN 2013201247341U CN 201320124734 U CN201320124734 U CN 201320124734U CN 203147500 U CN203147500 U CN 203147500U
- Authority
- CN
- China
- Prior art keywords
- light
- lgp
- light source
- lcd
- blooming
- 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
- 239000012788 optical film Substances 0.000 title abstract 4
- 238000005286 illumination Methods 0.000 abstract description 3
- 239000010409 thin film Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000012216 screening Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses an LCD backlight module with an optical film. The LCD backlight module, installed on a back framework, of an LCD comprises a light guiding plate, a light source element, a hood body and a top framework, wherein the light guiding plate and the light source element are installed between the top framework and the hood body and the light guiding plate is located on the light source element. The light source element comprises a circuit board, and a plurality of LEDs which are connected on the surface of the circuit board. A reflecting piece is attached on the lower surface of the light guiding plate, the optical film is attached on the upper surface of the light guiding plate, and the optical film is composed of a light diffusing piece and a light-proof thin film which covers the edge of the light diffusing piece. The LCD backlight module is higher in luminous efficiency and evener in illumination.
Description
Technical field
The utility model relates to LCD module backlight, belongs to the display element technical field.
Background technology
Existing LCD backlight module, when the user watches picture from the side of LCD, owing to penetrated the situations such as shadow, light piece, ghost that evenly often occur easily inadequately by illumination, the main cause that this problem occurs be traditional LCD backlight direct irradiation on LGP, problems such as light leak and non-uniform light are difficult to avoid.
Summary of the invention
At the problems referred to above, the utility model provides a kind of LCD module backlight, improves to overcome the defective of prior art by three aspects: (1) uses LED to replace traditional backlight as backlight, improves display brightness; (2) use reflector plate at LGP, prevent the light leak situation; (3) use blooming at LGP, make that the light of beating on display panels is more even, avoid problems such as shadow, hot spot.
For achieving the above object, the utility model is achieved through the following technical solutions:
Have the LCD module backlight of blooming, be installed on the back of the body framework of LCD display, comprise LGP, light source assembly, cover body and top frame, wherein LGP, light source assembly are installed between top frame and the cover body, and LGP is positioned at the light source assembly top; Light source assembly comprises circuit board and a plurality of LED that are connected circuit board surface; Lower surface at LGP is pasted with reflector plate, is pasted with blooming at the upper surface of LGP, and blooming is made up of light diffusing sheet and the light tight film of strip-type that covers the light diffusing sheet edge.
Pass through said structure, the LED light emitting array can be evenly, high brightness luminous, the light of scattering is reflected by reflector plate through LGP the time, avoid light leak, light leaves from the scattering of LGP exiting surface, make light source diffusion evenly arrive display panels in the back through blooming, use the light tight film of strip-type further to avoid light leakage phenomena not influencing under the situations such as display actual display area and thickness.
In the utility model, the area coverage of described blooming is greater than the upper surface area of LGP, and blooming is complete has in the case covered whole LGP, makes the light that passes LGP all obtain effective scattering.
At modern LCD to lightening requirement, the applicant has scrutinized the light tight film of strip-type and its relation to the scattered beam screening effect, find to have best screening effect in the following cases, can not impact the area of display, thickness etc. again simultaneously: the width of the light tight film of described strip-type is 2-5mm.
In the utility model, the light tight film of used strip-type adopts the light tight film of PET or the light tight PC film of black of black, and application cost is low, and screening effect is good.
By above-mentioned improvement, the LCD that the utility model provides module backlight has been realized desirable backlight illumination effect.
Description of drawings
Fig. 1 is the structural representation of LCD of the present utility model module backlight;
Fig. 2 is LCD of the present utility model module light guide plate structural representation backlight.
The specific embodiment
With reference to the accompanying drawings 1, LCD of the present utility model module 2 backlight, be installed on the back of the body framework 1 of LCD display, this module 2 backlight comprises LGP 21, light source assembly 22, cover body 23 and top frame 24, wherein LGP, light source assembly are installed in that (mounting means is for being fastened on the top frame between top frame and the cover body, cover body covers LGP, light source assembly then), LGP is positioned at the light source assembly top; Light source assembly 22 comprises circuit board 25 and a plurality of LED26 that are connected circuit board surface.
With reference to figure 1,2, be pasted with reflector plate 27 at the lower surface of LGP 21, be pasted with blooming 28 at the upper surface of LGP, blooming is made up of light diffusing sheet 281 and the light tight film 282 of strip-type that covers the light diffusing sheet edge.
Claims (3)
1. the LCD module backlight that has blooming, it is characterized in that being installed on the back of the body framework of LCD display, comprise LGP, light source assembly, cover body and top frame, wherein LGP, light source assembly are installed between top frame and the cover body, and LGP is positioned at the light source assembly top; Light source assembly comprises circuit board and a plurality of LED that are connected circuit board surface; Lower surface at LGP is pasted with reflector plate, is pasted with blooming at the upper surface of LGP, and blooming is made up of light diffusing sheet and the light tight film of strip-type that covers the light diffusing sheet edge.
2. LCD according to claim 1 module backlight is characterized in that the area coverage of described blooming is greater than the upper surface area of LGP.
3. LCD according to claim 1 module backlight, the width that it is characterized in that the light tight film of described strip-type is 2-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201247341U CN203147500U (en) | 2013-03-19 | 2013-03-19 | LCD backlight module with optical film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201247341U CN203147500U (en) | 2013-03-19 | 2013-03-19 | LCD backlight module with optical film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203147500U true CN203147500U (en) | 2013-08-21 |
Family
ID=48975020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201247341U Expired - Fee Related CN203147500U (en) | 2013-03-19 | 2013-03-19 | LCD backlight module with optical film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203147500U (en) |
-
2013
- 2013-03-19 CN CN2013201247341U patent/CN203147500U/en not_active Expired - Fee Related
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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: 20130821 Termination date: 20180319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |