CN101963306A - Ultrathin LED backlight module and liquid crystal television - Google Patents
Ultrathin LED backlight module and liquid crystal television Download PDFInfo
- Publication number
- CN101963306A CN101963306A CN2009101089859A CN200910108985A CN101963306A CN 101963306 A CN101963306 A CN 101963306A CN 2009101089859 A CN2009101089859 A CN 2009101089859A CN 200910108985 A CN200910108985 A CN 200910108985A CN 101963306 A CN101963306 A CN 101963306A
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- led
- liquid crystal
- blooming piece
- backlight module
- lgp
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 29
- 239000012528 membrane Substances 0.000 abstract 7
- 230000003287 optical effect Effects 0.000 abstract 7
- 238000009792 diffusion process Methods 0.000 description 1
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Abstract
The invention relates to an LED backlight module and a liquid crystal television. The liquid crystal television comprises a liquid crystal panel and the LED backlight module, wherein the LED backlight module is arranged on the back surface of the liquid crystal panel. The LED backlight module comprises at least one LED, at least one first optical membrane and at least one second optical membrane, wherein the LED is arranged on the side surface of the first optical membrane; and the second optical membrane is arranged on the upper surface of the first optical membrane. In the invention, because the LED is arranged on the side surface of the first optical membrane, the thickness of the LED backlight module is the thickness of the optical membrane, thereby effectively reducing the thickness of the LED backlight module and correspondingly reducing the thickness of the liquid crystal television.
Description
Technical field
The present invention relates to a kind of module backlight and liquid crystal TV set, relate in particular to a kind of large scale LED-backlit module that is used for liquid crystal TV set.
Background technology
Along with development of science and technology, lcd technology is more and more ripe, and television set is also from using traditional kinescope television set to develop into present liquid crystal TV set.Liquid crystal molecule itself is not luminous, so LCDs needs module backlight that light source is provided.From the classification of light source, can be divided into CCFL module backlight, LED-backlit module etc.The LED-backlit module since its color reducibility good, be easy to carry out advantage such as subregion control, become the main flow backlight of LCDs in the future.The LED-backlit module can be divided into side light type LED back light module and direct-light type LED backlight module again according to the difference of LED position.In general the side light type LED back light module is applied to small-medium size, and the direct-light type LED backlight module is applied to large scale.Present liquid crystal TV set screen size is increasing, therefore, must adopt the direct-light type LED backlight module.The LED of direct-light type LED backlight module is positioned at the bottom of blooming piece, for the uniformity of brightness, generally need reserve certain clearance.The thickness limit of direct-light type LED backlight module is 20mm, if the distance of LED and blooming piece is too small, carries out the blooming piece design in any case, all the lamp shadow of LED can not be eliminated.Therefore, the minimal thickness of direct-light type LED backlight module can only be 20mm.Thereby just make that also the thickness of liquid crystal TV set is bigger.
Summary of the invention
In view of this, be necessary, a kind of LED-backlit module that can reduce thickness is provided at the thicker problem of the thickness of direct-light type LED backlight module.
A kind of LED-backlit module comprises at least one LED, at least one first blooming piece and one second blooming piece, and described LED is arranged on the side of first blooming piece, and described second blooming piece is arranged on the upper surface of first blooming piece.
Preferably, described first blooming piece is a LGP.
Preferably, the lower surface of described first blooming piece is provided with the site.
Preferably, the quantity of described first blooming piece is more than two.
Preferably, described second blooming piece is LGP or diffuser plate.
In addition, also be necessary to provide a kind of liquid crystal TV set that can reduce thickness.
A kind of liquid crystal TV set, comprise liquid crystal panel and the LED-backlit module of being located at the described liquid crystal panel back side, described LED-backlit module comprises at least one LED, at least one first blooming piece and one second blooming piece, described LED is arranged on the side of first blooming piece, and described second blooming piece is arranged on the upper surface of first blooming piece.
Preferably, described first blooming piece is a LGP.
Preferably, the lower surface of described first blooming piece is provided with the site.
Preferably, the quantity of described first blooming piece is more than two.
Preferably, described second blooming piece is LGP or diffuser plate.
Because LED is arranged on the side of first blooming piece, so the thickness of LED-backlit module is exactly the thickness of blooming piece, thereby effectively reduced the thickness of LED-backlit module, correspondingly reduced the thickness of liquid crystal TV set.
Description of drawings
Fig. 1 is the vertical view of LED-backlit module.
Fig. 2 is the profile of LED-backlit module.
The specific embodiment
See also Fig. 1 and Fig. 2, Fig. 1 is the vertical view of LED-backlit module, and Fig. 2 is the profile of LED-backlit module.The LED-backlit module comprises several LED 10, several first LGPs 20 and one second LGP 30, and LED 10 is arranged on the side of first LGP 20, and second LGP 30 is arranged on the upper surface of first LGP 20.The lower surface of first LGP 20 is provided with site 21.
The light that LED 10 sends forms first area source through the diffusion of first LGP 20.Several first area sources enter second LGP 30, and form even brightness second area source after second LGP 30 spreads once more.
When reality is used, can select first LGP and the LED 10 of suitable number to come assembled LED module backlight according to the size of second LGP 30.For example, when the size of second LGP 30 was 50 cun, the number of required first LGP 20 was 4 (being of a size of 25 cun with first LGP 20 is example, and the size of first LGP 20 generally is 20 cun-32 cun), and the number of required LED 10 is 200-500.
Because LED 10 is arranged on the side of first LGP 20, so the thickness of LED-backlit module is exactly the thickness of blooming piece.Thickness can be reduced to 10mm-15mm in this case, adopts the large scale liquid crystal television set of this LED-backlit module also can do more frivolously.
Above-mentioned LED-backlit module and liquid crystal panel assembling are formed liquid crystal TV set, correspondingly also can reduce the thickness of liquid crystal TV set.
Above-mentioned second LGP 30 also can be substituted by diffuser plate.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. LED-backlit module, comprise at least one LED, it is characterized in that: also comprise at least one first blooming piece and one second blooming piece, described LED is arranged on the side of first blooming piece, and described second blooming piece is arranged on the upper surface of first blooming piece.
2. LED-backlit module according to claim 1 is characterized in that: described first blooming piece is a LGP.
3. LED-backlit module according to claim 1 and 2 is characterized in that: the lower surface of described first blooming piece is provided with the site.
4. LED-backlit module according to claim 1 and 2 is characterized in that: the quantity of described first blooming piece is more than two.
5. LED-backlit module according to claim 1 and 2 is characterized in that: described second blooming piece is LGP or diffuser plate.
6. liquid crystal TV set, comprise liquid crystal panel and the LED-backlit module of being located at the described liquid crystal panel back side, described LED-backlit module comprises at least one LED, it is characterized in that: described LED-backlit module also comprises at least one first blooming piece and one second blooming piece, described LED is arranged on the side of first blooming piece, and described second blooming piece is arranged on the upper surface of first blooming piece.
7. liquid crystal TV set according to claim 6 is characterized in that: described first blooming piece is a LGP.
8. according to claim 6 or 7 described liquid crystal TV sets, it is characterized in that: the lower surface of described first blooming piece is provided with the site.
9. according to claim 6 or 7 described liquid crystal TV sets, it is characterized in that: the quantity of described first blooming piece is more than two.
10. according to claim 6 or 7 described liquid crystal TV sets, it is characterized in that: described second blooming piece is LGP or diffuser plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101089859A CN101963306A (en) | 2009-07-24 | 2009-07-24 | Ultrathin LED backlight module and liquid crystal television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101089859A CN101963306A (en) | 2009-07-24 | 2009-07-24 | Ultrathin LED backlight module and liquid crystal television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101963306A true CN101963306A (en) | 2011-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101089859A Pending CN101963306A (en) | 2009-07-24 | 2009-07-24 | Ultrathin LED backlight module and liquid crystal television |
Country Status (1)
| Country | Link |
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| CN (1) | CN101963306A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230305219A1 (en) * | 2017-06-04 | 2023-09-28 | Sergiy Vasylyev | Multi-waveguide illumination panel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1949048A (en) * | 2005-10-14 | 2007-04-18 | 鸿富锦精密工业（深圳）有限公司 | Backlight module and light guiding plate thereof |
| CN101025517A (en) * | 2006-02-24 | 2007-08-29 | 鸿富锦精密工业（深圳）有限公司 | Backlight module |
| CN101051153A (en) * | 2007-05-11 | 2007-10-10 | 友达光电股份有限公司 | Back light module |
| CN101105602A (en) * | 2006-07-10 | 2008-01-16 | 深圳帝光电子有限公司 | LED backlight module group for TFT-LCD |
| CN201262677Y (en) * | 2008-09-27 | 2009-06-24 | 东莞市飞尔液晶显示器有限公司 | Ultrathin liquid crystal display module |
-
2009
- 2009-07-24 CN CN2009101089859A patent/CN101963306A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1949048A (en) * | 2005-10-14 | 2007-04-18 | 鸿富锦精密工业（深圳）有限公司 | Backlight module and light guiding plate thereof |
| CN101025517A (en) * | 2006-02-24 | 2007-08-29 | 鸿富锦精密工业（深圳）有限公司 | Backlight module |
| CN101105602A (en) * | 2006-07-10 | 2008-01-16 | 深圳帝光电子有限公司 | LED backlight module group for TFT-LCD |
| CN101051153A (en) * | 2007-05-11 | 2007-10-10 | 友达光电股份有限公司 | Back light module |
| CN201262677Y (en) * | 2008-09-27 | 2009-06-24 | 东莞市飞尔液晶显示器有限公司 | Ultrathin liquid crystal display module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230305219A1 (en) * | 2017-06-04 | 2023-09-28 | Sergiy Vasylyev | Multi-waveguide illumination panel |
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Application publication date: 20110202 |