CN103017032A - Side-in backlight module, liquid crystal module and liquid crystal display device - Google Patents
Side-in backlight module, liquid crystal module and liquid crystal display device Download PDFInfo
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- CN103017032A CN103017032A CN2012105222589A CN201210522258A CN103017032A CN 103017032 A CN103017032 A CN 103017032A CN 2012105222589 A CN2012105222589 A CN 2012105222589A CN 201210522258 A CN201210522258 A CN 201210522258A CN 103017032 A CN103017032 A CN 103017032A
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- lgp
- liquid crystal
- entrance back
- side entrance
- back module
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Abstract
The invention discloses a side-in backlight module, a liquid crystal module and a liquid crystal display device. The side-in backlight module comprises a light source and a light guide plate, wherein the light source is arranged on the light-in side of the light guide plate, and the light-out surface of the light guide plate is provided with a compensation diaphragm used for compensating color cast of the light guide plate. Since the color cast produced by the light guide plate can be compensated by the compensation diaphragm, the color temperature of the light-in side and the non-light-in side of the light guide plate can be balanced, and the overall visual effect of the backlight module can be improved.
Description
Technical field
The present invention relates to field of liquid crystal display, particularly a kind of side entrance back module, liquid crystal module and liquid crystal display.
Background technology
Along with China LED LCD TV demand sharply rises violently, the development of LED-backlit module is swift and violent.Backlight module (Back light module) is one of important spare part of liquid crystal display, because liquid crystal itself is not luminous, the function of backlight module is to provide sufficient brightness and the light source that is evenly distributed, and makes normally show image of liquid crystal display.
At present, backlight module generally can be divided into side entering type and two kinds of structures of straight-down negative.The side entrance back module has the advantages such as the thinner and power consumption of integral thickness is little, but exiting surface is evenly not high.Particularly aspect ultra-thin, side entrance back is main implementation, large-sized side entering type LED TV adopts single short side light inlet at present, but this scheme backlight has been subject to the defective effect on the LGP optical characteristics, a general colour cast problem has appearred, be that the light inlet side of LGP and the colour temperature of non-light incidence side exist certain deviation, affected integral body and looked effect, particularly particularly remarkable on the large scale side entrance back.
It is as follows that colour cast forms mechanism: most of use is the printing LGP in the side entering type module, because the light absorpting ability of different-waveband is different in the light that the printing ink that printing is used sends LED, wherein maximum to the absorption of blue light wave band, this just so that the light inlet side to compare the non-light incidence side colour temperature higher, light is more and more partially yellow along the LED direction of illumination, and the colour cast between light inlet side and the non-light incidence side is along with the increasing of size is obvious all the more.This light with colour cast is out even with the light diffusion through the effect of several diaphragms afterwards from the exiting surface of LGP, forms a uniform area source backlight, but more obvious through color offset phenomenon behind the liquid crystal panel.
Thereby prior art is still waiting to improve and improve.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, the object of the present invention is to provide a kind of side entrance back module, liquid crystal module and liquid crystal display, be intended to solve the problem of the colour cast of side entrance back module in the prior art.
In order to achieve the above object, the present invention has taked following technical scheme:
A kind of side entrance back module comprises light source and LGP, and described light source is arranged on the light inlet side of LGP, and wherein: the exiting surface at described LGP is provided with a compensating diaphragm for compensation LGP colour cast.
Described side entrance back module, wherein, the density of described compensating diaphragm reduces gradually along the direction of propagation of described light source in LGP.
Described side entrance back module, wherein, described compensating diaphragm is formed by the different sheet of base film pressing of multi-disc length; The different sheet of base film of described multi-disc length from top to bottom, from being short to long setting gradually, and end alignment; One end of the sheet of base film alignment that described multi-disc length is different is near the light inlet side of LGP.
Described side entrance back module, wherein, described sheet of base film is better than absorbability to blue light to the absorbability of red-green glow.
Described side entrance back module, wherein, described sheet of base film is the PET plastics.
Described side entrance back module, wherein, the thickness of described compensating diaphragm is 0.1-0.3mm.
Described side entrance back module is characterized in that, described light source is led light source.
A kind of liquid crystal module comprises display panels, wherein, also comprises above-mentioned side entrance back module, and described display panels is positioned at light-emitting face one side of side entrance back module.
A kind of liquid crystal display wherein, comprises above-mentioned liquid crystal module.
Described liquid crystal display, wherein, described liquid crystal display is LCD TV
Compared to prior art, a kind of side entrance back module provided by the invention, liquid crystal module and liquid crystal display, its side entrance back module comprises light source and LGP, described light source is arranged on the light inlet side of LGP, and wherein: the exiting surface at described LGP is provided with a compensating diaphragm for compensation LGP colour cast; Colour cast problem by the generation of compensating diaphragm compensation LGP, be that compensating diaphragm mates the Optical Absorption characteristic is complementary Optical Absorption characteristic and LGP, thereby so that the light inlet side of LGP to the white balance of non-light incidence side, has promoted the whole visual effect of backlight module.
Description of drawings
Fig. 1 is the cross-sectional view of side entrance back module of the present invention.
Fig. 2 is the cutaway view of the compensating diaphragm of side entrance back module of the present invention.
The specific embodiment
The invention provides a kind of side entrance back module, liquid crystal module and liquid crystal display, clearer, clear and definite for making purpose of the present invention, technical scheme and effect, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
See also Fig. 1, Fig. 1 is the cross-sectional view of side entrance back module of the present invention.As shown in Figure 1, described side entrance back module comprises LGP 110, light source 120 and compensate film 130; Described light source 120 is arranged on the light inlet side 111 of LGP 110, and described compensating diaphragm 130 is arranged on the exiting surface 112 of described LGP 110.
Specifically, described LGP 110 comprises light inlet side 111, exiting surface 112 and bottom surface 113; Described exiting surface 112 and bottom surface 113 are oppositely arranged, and described light inlet side 111 connects respectively exiting surface 112 and bottom surface 113.Described light source 120 is arranged on the light inlet side 111 of LGP 110, the light that described light source 120 sends incides in the described LGP 110 with side entering type, after 113 reflections of the bottom surface of LGP 110, by exiting surface 112 ejaculations of LGP 110, this is prior art, does not do too much explanation herein.Described compensating diaphragm 130 is arranged on the exiting surface 112 of described LGP 110, in the specific implementation, and namely between the LGP 110 and diffusion sheet of backlight module.Described compensating diaphragm 130 is used for compensation LGP colour cast.From background technology as can be known, to be LGP 110 cause for the Optical Absorption degree varies of different-waveband the reason that the colour cast of LGP forms, for the absorbability of blue light wave band greater than the red green optical band, so that light inlet side 111 is to the colour temperature of non-light incidence side, direction of illumination along light source 120 reduces gradually, and is namely more and more partially yellow.Described compensating diaphragm 130 for the absorbability of red green optical band greater than the blue light wave band, and the direction of propagation along with light source 120, its overall absorption ability weakens, thereby adaptive with LGP 110, so that the light that colour cast is arranged of exiting surface 112 outgoing of LGP 120 is through after compensating diaphragm 130 compensation, colour temperature is consistent, thereby solved gradually phenomenon on the low side of the colour temperature from light inlet side 111 to non-light incidence side on the exiting surface 112 of LGP 110, namely solved the emergent ray of LGP 110 along light source 120 problem that colour temperature reduces gradually on the direction of propagation of LGP 110.In the present embodiment, described light source 120 is led light source.
Further, the density that is arranged on the compensating diaphragm 130 on the exiting surface 112 of LGP 110 reduces gradually along the direction of propagation of described light source 120 in LGP 110; And the even thickness of described compensating diaphragm 130.
Specific embodiment with next compensating diaphragm is elaborated.See also Fig. 2, Fig. 2 is the cutaway view of the compensating diaphragm of side entrance back module of the present invention.As shown in Figure 2, described compensating diaphragm 130 comprises the different sheet of base film of multi-disc length 131, and its manufacture method is as follows: as shown in Figure 2, the sheet of base film 131 that multi-disc length is different from top to bottom, from being short to long setting gradually, and end alignment; Then sheet of base film 131 pressings are formed described compensating diaphragm 130; One end of sheet of base film 131 alignment that described multi-disc length is different is near the light inlet side 111 of LGP 110.That is to say, the number of plies of the sheet of base film 131 of compensating diaphragm 130 reduces gradually along the direction of illumination of light source 120.The degree of this minimizing arranges for different-waveband Optical Absorption difference according to LGP 110.When practical application, the integral thickness of described compensating diaphragm 130 is even, and thickness is generally 0.1-0.3mm, is preferably 200um.And the number of plies of the sheet of base film 131 of described compensating diaphragm 130 reduces along the direction of illumination of light source 120, and the number of plies of an end of its alignment is about about 300 layers.By will making described compensating diaphragm 130 integral thickness even after 131 pressings of multilayer sheet of base film, but the number of plies that its inside comprises be different, and the number of plies is successively decreased along light source 120 direction of illuminations.
Further, the material of described sheet of base film 131 and thickness are all similar identical, and are better than absorbability to blue light for the absorbability of red-green glow, thereby complementary with the absorption characteristic of LGP 110.And because more in the end number of plies near light inlet side 111, its whole absorbent capacity weakens gradually along the direction of illumination of light source 120, also with the absorption characteristic coupling of LGP 110 in the side entrance back module, thereby guaranteed the balance of colour temperature between light inlet side and the non-light incidence side, guaranteed the white balance of the exiting surface of side entrance back module, thereby the integral body that has promoted the side entrance back module is looked effect.
Preferably, described sheet of base film 131 is the PET plastics, and namely diaphragm uses base material to be PET material, i.e. poly terephthalic acid class plastics.
Based on above-mentioned side entrance back module, the present invention also provides a kind of liquid crystal module, comprises display panels and above-mentioned side entrance back module, and described display panels is positioned at light-emitting face one side of side entrance back module.
Based on above-mentioned liquid crystal module, the present invention also provides a kind of liquid crystal display, comprises above-mentioned liquid crystal module.Described liquid crystal display is LCD TV, liquid crystal display, notebook, panel computer etc., makes the exiting surface colour temperature of product even by design of the present invention, has greatly reduced the colour cast problem, has improved whole visual effect.
In sum, a kind of side entrance back module provided by the invention, liquid crystal module and liquid crystal display, its side entrance back module comprises light source and LGP, described light source is arranged on the light inlet side of LGP, and wherein: the exiting surface at described LGP is provided with a compensating diaphragm for compensation LGP colour cast; Colour cast problem by the generation of compensating diaphragm compensation LGP, namely be provided with a compensating diaphragm by the exiting surface at described LGP, described compensating diaphragm comprises the multi-disc sheet of base film, described sheet of base film is better than absorbability to blue wave band for the absorbability of red-green glow wave band, and along the direction of propagation of light source in LGP, the number of plies of the sheet of base film in the described compensating diaphragm reduces gradually, thereby so that compensating diaphragm is complementary for the Optical Absorption characteristic of different-waveband and the LGP Optical Absorption characteristic for different-waveband, carry out complementation, thereby guaranteed the balance of colour temperature between light inlet side and the non-light incidence side, guaranteed the white balance of the exiting surface of side entrance back module, thereby the integral body that has promoted the side entrance back module is looked effect.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. a side entrance back module comprises light source and LGP, and described light source is arranged on the light inlet side of LGP, it is characterized in that: the exiting surface at described LGP is provided with a compensating diaphragm for compensation LGP colour cast.
2. side entrance back module according to claim 1 is characterized in that, the density of described compensating diaphragm reduces gradually along the direction of propagation of described light source in LGP.
3. side entrance back module according to claim 1 is characterized in that, described compensating diaphragm is formed by the different sheet of base film pressing of multi-disc length; The different sheet of base film of described multi-disc length from top to bottom, from being short to long setting gradually, and end alignment; One end of the sheet of base film alignment that described multi-disc length is different is near the light inlet side of LGP.
4. side entrance back module according to claim 3 is characterized in that, described sheet of base film is better than absorbability to blue light to the absorbability of red-green glow.
5. side entrance back module according to claim 3 is characterized in that, described sheet of base film is the PET plastics.
6. side entrance back module according to claim 3 is characterized in that, the thickness of described compensating diaphragm is 0.1-0.3mm.
7. side entrance back module according to claim 1 is characterized in that, described light source is led light source.
8. a liquid crystal module comprises display panels, it is characterized in that, comprises that also described display panels is positioned at light-emitting face one side of side entrance back module such as each described side entrance back module of claim 1 to 7.
9. a liquid crystal display is characterized in that, comprises liquid crystal module as claimed in claim 8.
10. liquid crystal display according to claim 9 is characterized in that, described liquid crystal display is LCD TV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105222589A CN103017032A (en) | 2012-12-07 | 2012-12-07 | Side-in backlight module, liquid crystal module and liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105222589A CN103017032A (en) | 2012-12-07 | 2012-12-07 | Side-in backlight module, liquid crystal module and liquid crystal display device |
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| CN103017032A true CN103017032A (en) | 2013-04-03 |
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| CN2012105222589A Pending CN103017032A (en) | 2012-12-07 | 2012-12-07 | Side-in backlight module, liquid crystal module and liquid crystal display device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105487291A (en) * | 2016-01-08 | 2016-04-13 | 京东方科技集团股份有限公司 | Backlight module and preparation method thereof and display device |
| TWI550313B (en) * | 2015-08-24 | 2016-09-21 | 瑞儀光電（蘇州）有限公司 | Light guide composition, backlight module and display device |
| WO2017059644A1 (en) * | 2015-10-09 | 2017-04-13 | 瑞仪光电(苏州)有限公司 | Backlight module and display device |
| CN108196400A (en) * | 2018-02-01 | 2018-06-22 | 广东欧珀移动通信有限公司 | Backlight module, display device and electronic equipment |
| CN109212818A (en) * | 2018-09-30 | 2019-01-15 | 联想(北京)有限公司 | Liquid crystal display and its manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003338212A (en) * | 2002-05-21 | 2003-11-28 | Citizen Electronics Co Ltd | Back light unit |
| JP2005183139A (en) * | 2003-12-18 | 2005-07-07 | Seiko Instruments Inc | Lighting system and liquid crystal display |
| CN1892341A (en) * | 2005-07-09 | 2007-01-10 | 群康科技(深圳)有限公司 | Light-guiding plate and back-light module group using same and liquid-crystal display |
| US20120182499A1 (en) * | 2011-01-17 | 2012-07-19 | Samsung Mobile Display Co., Ltd. | Display module |
| CN102681049A (en) * | 2012-03-12 | 2012-09-19 | 京东方科技集团股份有限公司 | Color deviation balancing film, lateral incidence type backlight module and liquid crystal display device |
-
2012
- 2012-12-07 CN CN2012105222589A patent/CN103017032A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003338212A (en) * | 2002-05-21 | 2003-11-28 | Citizen Electronics Co Ltd | Back light unit |
| JP2005183139A (en) * | 2003-12-18 | 2005-07-07 | Seiko Instruments Inc | Lighting system and liquid crystal display |
| CN1892341A (en) * | 2005-07-09 | 2007-01-10 | 群康科技(深圳)有限公司 | Light-guiding plate and back-light module group using same and liquid-crystal display |
| US20120182499A1 (en) * | 2011-01-17 | 2012-07-19 | Samsung Mobile Display Co., Ltd. | Display module |
| CN102681049A (en) * | 2012-03-12 | 2012-09-19 | 京东方科技集团股份有限公司 | Color deviation balancing film, lateral incidence type backlight module and liquid crystal display device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI550313B (en) * | 2015-08-24 | 2016-09-21 | 瑞儀光電（蘇州）有限公司 | Light guide composition, backlight module and display device |
| US10359558B2 (en) | 2015-08-24 | 2019-07-23 | Radiant Opto-Electronics (Suzhou) Co., Ltd. | Light guide composition, backlight module having light guide composition and display device having backlight module |
| WO2017059644A1 (en) * | 2015-10-09 | 2017-04-13 | 瑞仪光电(苏州)有限公司 | Backlight module and display device |
| CN106568029A (en) * | 2015-10-09 | 2017-04-19 | 瑞仪光电(苏州)有限公司 | Backlight module and display apparatus |
| US10151868B2 (en) | 2015-10-09 | 2018-12-11 | Radiant Opto-Electronics (Suzhou) Co., Ltd. | Backlight module and display device |
| CN105487291A (en) * | 2016-01-08 | 2016-04-13 | 京东方科技集团股份有限公司 | Backlight module and preparation method thereof and display device |
| WO2017118095A1 (en) * | 2016-01-08 | 2017-07-13 | 京东方科技集团股份有限公司 | Backlight module and manufacturing method thereof, and display device |
| US10466401B2 (en) | 2016-01-08 | 2019-11-05 | Boe Technology Group Co., Ltd. | Backlight module, methods of manufacturing the same, and display device |
| CN108196400A (en) * | 2018-02-01 | 2018-06-22 | 广东欧珀移动通信有限公司 | Backlight module, display device and electronic equipment |
| CN109212818A (en) * | 2018-09-30 | 2019-01-15 | 联想(北京)有限公司 | Liquid crystal display and its manufacturing method |
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Application publication date: 20130403 |