CN104977640A - Brightness enhancement film, backlight module and display device - Google Patents
Brightness enhancement film, backlight module and display device Download PDFInfo
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- CN104977640A CN104977640A CN201510484519.6A CN201510484519A CN104977640A CN 104977640 A CN104977640 A CN 104977640A CN 201510484519 A CN201510484519 A CN 201510484519A CN 104977640 A CN104977640 A CN 104977640A
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- filter
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- enhancement film
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Abstract
The invention provides a brightness enhancement film, a backlight module and a display device, belonging to the technical field of display. A filter coating layer of the brightness enhancement film is formed by filter coatings in one color or filter coatings in two different colors. The brightness enhancement film, the backlight module and the display device have the beneficial effects that different white color coordinate requirements can be met by adjusting the brightness enhancement film, and the brightness of the display device can be ensured.
Description
Technical field
The present invention relates to display technique field, refer to a kind of brightness enhancement film, backlight module and display device especially.
Background technology
Liquid crystal display (LCD, Liquid Crystal Display) has become current the most general display technique.LCD is the display device of non-luminescent, needs just can reach Presentation Function by backlight module, and the main member of backlight module comprises: light source, light guide plate, all kinds of blooming piece.The blooming piece of backlight module mainly comprises reflectance coating, diffusion barrier and brightness enhancement film three kinds.
The effect of brightness enhancement film is adjusted to the light outside observer visual angle within observer's angular field of view, namely has light-focusing function, improves light utilization.Utilize the total reflection effect to light, the light meeting certain angle is penetrated, namely controls the shooting angle of light, the light not meeting angle returns backlight module after refraction, is again utilized.Such emergent ray major part integrated distribution, in the scope in ± 35 ° (relative normal directions), improves the brightness of centre visual angle, only has the shooting angle of fraction light to be greater than 35 °.Brightness enhancement film generally comprises hundreds of and replaces stacked having optically anisotropic the first film layer and have optically isotropic second thin layer, also comprises the filter coating of multiple different colours.
The white color coordinate of liquid crystal display is generally determined by the glazed area ratio of RGB subpixel area and the spectrum of backlight, in order to meet the requirement of client's different product specification, often needs the white color coordinate adjusting liquid crystal display.When other condition is certain, by adjusting black Matrix Pattern, and then the glazed area ratio of adjustment RGB subpixel area is for adjusting one of classic method of the white color coordinate of liquid crystal display.In this approach, the glazed area of the sub-pixel that glazed area is maximum is limited to pixel size, technological ability etc. and can not adjusts, the different glazed area ratios of rgb pixel can only be realized by the glazed area reducing other sub-pixel, this reduces the brightness of display.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of brightness enhancement film, backlight module and display device, can meet different white color coordinate requirements, and can ensure the brightness of display device by adjustment brightness enhancement film.
For solving the problems of the technologies described above, embodiments of the invention provide technical scheme as follows:
On the one hand, provide a kind of brightness enhancement film, the filter membranous layer of described brightness enhancement film is made up of a kind of filter coating of color or is made up of the filter coating of two kinds of different colours.
Further, the filter membranous layer of described brightness enhancement film is made up of any one in green filter film, red filter film and blue filter film or any two.
Further, the filter membranous layer of described brightness enhancement film is made up of any one in green filter film, red filter film and blue filter film.
Further, the filter membranous layer of described brightness enhancement film is made up of green filter film and blue filter film.
Further, the filter membranous layer of described brightness enhancement film is made up of green filter film and red filter film.
Further, the filter membranous layer of described brightness enhancement film is made up of red filter film and blue filter film.
Further, the thickness of two filter coatings that comprises of the filter membranous layer of described brightness enhancement film is equal.
Further, described brightness enhancement film also comprises uniaxiality blooming and the biaxiality blooming of the alternately laminated setting of many groups.
The embodiment of the present invention additionally provides a kind of backlight module, comprises brightness enhancement film as above.
The embodiment of the present invention additionally provides a kind of display device, comprises backlight module as above.
Embodiments of the invention have following beneficial effect:
In such scheme, the filter membranous layer of brightness enhancement film is made up of a kind of filter coating of color or is made up of the filter coating of two kinds of different colours, the chromaticity coordinates of brightness enhancement film is no longer fixing, the chromaticity coordinates of brightness enhancement film changes along with the composition change of filter membranous layer, the chromaticity coordinates of brightness enhancement film can be changed like this by the composition adjusting filter membranous layer, thus meet the different white color coordinate requirement of display device, and the brightness of display device can not be affected, the brightness of display device can be ensured.
Accompanying drawing explanation
Fig. 1 is the structural representation of the filter membranous layer of brightness enhancement film in prior art;
Fig. 2 is the schematic diagram that the filter membranous layer of embodiment of the present invention brightness enhancement film only comprises red filter film;
Fig. 3 is the schematic diagram that the filter membranous layer of embodiment of the present invention brightness enhancement film only comprises green filter film;
Fig. 4 is the schematic diagram that the filter membranous layer of embodiment of the present invention brightness enhancement film only comprises blue filter film;
Fig. 5 is the schematic diagram that the filter membranous layer of embodiment of the present invention brightness enhancement film is made up of red filter film and green filter film; .
Fig. 6 is the schematic diagram of filter membranous layer by blue filter film and green filter film of embodiment of the present invention brightness enhancement film;
Fig. 7 is the schematic diagram that the filter membranous layer of embodiment of the present invention brightness enhancement film is made up of red filter film and green filter film.
Reference numeral
1 red filter film 2 green filter film 3 blue filter film
Embodiment
For embodiments of the invention will be solved technical matters, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Embodiments of the invention in prior art adjustment liquid crystal display white color coordinate time, often affect the problem of the brightness of liquid crystal display, a kind of brightness enhancement film, backlight module and display device are provided, different white color coordinate requirements can be met by adjustment brightness enhancement film, and the brightness of display device can be ensured.
Embodiment one
Present embodiments provide a kind of brightness enhancement film, the filter membranous layer of described brightness enhancement film is made up of a kind of filter coating of color or is made up of the filter coating of two kinds of different colours.
In the present embodiment, the filter membranous layer of brightness enhancement film is made up of a kind of filter coating of color or is made up of the filter coating of two kinds of different colours, the chromaticity coordinates of brightness enhancement film is no longer fixing, the chromaticity coordinates of brightness enhancement film changes along with the composition change of filter membranous layer, the chromaticity coordinates of brightness enhancement film can be changed like this by the composition adjusting filter membranous layer, thus meet the different white color coordinate requirement of display device, and the brightness of display device can not be affected, the brightness of display device can be ensured.
Further, the filter membranous layer of brightness enhancement film can by green filter film, any one or any two compositions in red filter film and blue filter film, in prior art, the filter membranous layer of brightness enhancement film is by green filter film, blue filter film and red filter film composition, green filter film, the thickness of blue filter film and red filter film is equal, therefore, the chromaticity coordinates of brightness enhancement film is fixing, in the present embodiment, the filter membranous layer of brightness enhancement film is by green filter film, any one or any two compositions in red filter film and blue filter film, then the chromaticity coordinates of brightness enhancement film will change.
Particularly, the filter membranous layer of brightness enhancement film can be made up of any one in green filter film, red filter film and blue filter film; Further, the filter membranous layer of brightness enhancement film can also be made up of green filter film and blue filter film; Or the filter membranous layer of brightness enhancement film is made up of green filter film and red filter film; Or the filter membranous layer of brightness enhancement film is made up of red filter film and blue filter film.Particularly, can adjust by the composition of chromaticity coordinates to filter membranous layer as required.
Further, except filter membranous layer, brightness enhancement film also comprises uniaxiality blooming and the biaxiality blooming of the alternately laminated setting of many groups, be arranged alternately by uniaxiality blooming and biaxiality blooming, the shooting angle of light can be controlled, make the light meeting angle return backlight module after refraction, be again utilized, thus improve the utilization factor of light.
Embodiment two
The present embodiment additionally provides a kind of backlight module, comprise brightness enhancement film as above, also comprise backlight, light guide plate etc., because the filter membranous layer of brightness enhancement film is made up of a kind of filter coating of color or is made up of the filter coating of two kinds of different colours, the chromaticity coordinates of brightness enhancement film is no longer fixing, the chromaticity coordinates of brightness enhancement film changes along with the composition change of filter membranous layer, the chromaticity coordinates of backlight module can be changed like this by the composition adjusting filter membranous layer, thus meet the different white color coordinate requirement of display device, and the brightness of display device can not be affected, the brightness of display device can be ensured.
Embodiment three
The embodiment of the present invention additionally provides a kind of display device, comprise backlight module as above and display panel, because the filter membranous layer of brightness enhancement film in backlight module is made up of a kind of filter coating of color or is made up of the filter coating of two kinds of different colours, the chromaticity coordinates of backlight module is no longer fixing, the chromaticity coordinates of backlight module changes along with the composition change of filter membranous layer, the chromaticity coordinates of display device can be changed like this by the composition adjusting filter membranous layer, thus meet the different white color coordinate requirement of display device, and the brightness of display device can not be affected, the brightness of display device can be ensured.
Embodiment four
As shown in Figure 1, in prior art, the filter membranous layer of brightness enhancement film is made up of green filter film 2, blue filter film 3 and red filter film 1, and the thickness of green filter film 2, blue filter film 3 and red filter film 1 is equal, therefore, the chromaticity coordinates of brightness enhancement film is fixing.
In order to meet different white color coordinate requirements, in the present embodiment, the filter membranous layer of brightness enhancement film is made up of any one in green filter film 2, red filter film 1 and blue filter film 3 or any two.
As shown in Figure 2, the filter membranous layer of brightness enhancement film can only comprise red filter film 1, when backlight module adopts this brightness enhancement film, the white light coordinate of backlight module will change to red-side, and then adopt the white light coordinate of the display device of this backlight module also will change to red-side.
As shown in Figure 3, the filter membranous layer of brightness enhancement film can also only comprise green filter film 2, when backlight module adopts this brightness enhancement film, the white light coordinate of backlight module will change to green side, and then adopt the white light coordinate of the display device of this backlight module also will change to green side.
As shown in Figure 4, the filter membranous layer of brightness enhancement film can also only comprise blue filter film 3, when backlight module adopts this brightness enhancement film, the white light coordinate of backlight module will change to blue side, and then adopt the white light coordinate of the display device of this backlight module also will change to blue side.
Further, the filter membranous layer of brightness enhancement film can also be made up of any two in green filter film, red filter film and blue filter film:
As shown in Figure 5, the filter membranous layer of brightness enhancement film can be made up of red filter film 1 and green filter film 2, when backlight module adopts this brightness enhancement film, the white light coordinate of backlight module will to red and green side change, and then adopt the white light coordinate of the display device of this backlight module also will change to red and green side.
As shown in Figure 6, the filter membranous layer of brightness enhancement film can be made up of green filter film 2 and blue filter film 3, when backlight module adopts this brightness enhancement film, the white light coordinate of backlight module will to the change of green and blue side, and then adopt the white light coordinate of the display device of this backlight module also will change to green and blue side.
As shown in Figure 7, the filter membranous layer of brightness enhancement film can be made up of red filter film 1 and blue filter film 3, when backlight module adopts this brightness enhancement film, the white light coordinate of backlight module will to the change of red and blue side, and then adopt the white light coordinate of the display device of this backlight module also will change to red and blue side.
Further, when the filter membranous layer of brightness enhancement film comprises the filter coating of two colors, the thickness of these two filter coatings is equal, can control the change of the chromaticity coordinates of brightness enhancement film so better.
Further, except filter membranous layer, brightness enhancement film also comprises uniaxiality blooming and the biaxiality blooming of the alternately laminated setting of many groups, be arranged alternately by uniaxiality blooming and biaxiality blooming, the shooting angle of light can be controlled, make the light meeting angle return backlight module after refraction, be again utilized, thus improve the utilization factor of light.
The present embodiment is by the composition of the filter membranous layer of adjustment brightness enhancement film, the variation of the chromaticity coordinates of brightness enhancement film can be realized, like this when backlight module has different white color position demand, other parts of backlight module can be changed, only need to select corresponding brightness enhancement film, realize simple; Further, when display device has different white color position demand, other parts of display device can be changed, only need to select corresponding backlight module, realize simple.And due to white color coordinate need not be adjusted by the glazed area adjusting subpixel area, therefore can not affect the brightness of display device, the display brightness of display device can be ensured.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a brightness enhancement film, is characterized in that, the filter membranous layer of described brightness enhancement film is made up of a kind of filter coating of color or is made up of the filter coating of two kinds of different colours.
2. brightness enhancement film according to claim 1, is characterized in that, the filter membranous layer of described brightness enhancement film is made up of any one in green filter film, red filter film and blue filter film or any two.
3. brightness enhancement film according to claim 2, is characterized in that, the filter membranous layer of described brightness enhancement film is made up of any one in green filter film, red filter film and blue filter film.
4. brightness enhancement film according to claim 2, is characterized in that, the filter membranous layer of described brightness enhancement film is made up of green filter film and blue filter film.
5. brightness enhancement film according to claim 2, is characterized in that, the filter membranous layer of described brightness enhancement film is made up of green filter film and red filter film.
6. brightness enhancement film according to claim 2, is characterized in that, the filter membranous layer of described brightness enhancement film is made up of red filter film and blue filter film.
7. the brightness enhancement film according to any one of claim 4-6, is characterized in that, the thickness of two filter coatings that the filter membranous layer of described brightness enhancement film comprises is equal.
8. brightness enhancement film according to claim 1, is characterized in that, described brightness enhancement film also comprises uniaxiality blooming and the biaxiality blooming of the alternately laminated setting of many groups.
9. a backlight module, is characterized in that, comprises the brightness enhancement film according to any one of claim 1-8.
10. a display device, is characterized in that, according to backlight module as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510484519.6A CN104977640B (en) | 2015-08-07 | 2015-08-07 | Brightness enhancement film, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510484519.6A CN104977640B (en) | 2015-08-07 | 2015-08-07 | Brightness enhancement film, backlight module and display device |
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| Publication Number | Publication Date |
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| CN104977640A true CN104977640A (en) | 2015-10-14 |
| CN104977640B CN104977640B (en) | 2019-06-04 |
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| CN201510484519.6A Expired - Fee Related CN104977640B (en) | 2015-08-07 | 2015-08-07 | Brightness enhancement film, backlight module and display device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060050198A1 (en) * | 2004-09-06 | 2006-03-09 | Sony Corporation | Liquid crystal display |
| CN101216634A (en) * | 2008-01-10 | 2008-07-09 | 友达光电股份有限公司 | Display apparatus and its optical film preparation method |
| CN201177708Y (en) * | 2007-11-27 | 2009-01-07 | 陈丽雪 | Liquid crystal construction |
| CN204405878U (en) * | 2014-12-11 | 2015-06-17 | 太湖金张科技股份有限公司 | A kind of blue light and ultraviolet-resistant optics diffusion structure and backlight device |
| CN204405884U (en) * | 2014-05-20 | 2015-06-17 | 太湖金张科技股份有限公司 | A kind of obstruct blue light hardening resin film |
-
2015
- 2015-08-07 CN CN201510484519.6A patent/CN104977640B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060050198A1 (en) * | 2004-09-06 | 2006-03-09 | Sony Corporation | Liquid crystal display |
| CN201177708Y (en) * | 2007-11-27 | 2009-01-07 | 陈丽雪 | Liquid crystal construction |
| CN101216634A (en) * | 2008-01-10 | 2008-07-09 | 友达光电股份有限公司 | Display apparatus and its optical film preparation method |
| CN204405884U (en) * | 2014-05-20 | 2015-06-17 | 太湖金张科技股份有限公司 | A kind of obstruct blue light hardening resin film |
| CN204405878U (en) * | 2014-12-11 | 2015-06-17 | 太湖金张科技股份有限公司 | A kind of blue light and ultraviolet-resistant optics diffusion structure and backlight device |
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| CN104977640B (en) | 2019-06-04 |
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Granted publication date: 20190604 Termination date: 20210807 |