CN104142589A - Liquid crystal panel with anti-dazzle function - Google Patents
Liquid crystal panel with anti-dazzle function Download PDFInfo
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- CN104142589A CN104142589A CN201410381290.9A CN201410381290A CN104142589A CN 104142589 A CN104142589 A CN 104142589A CN 201410381290 A CN201410381290 A CN 201410381290A CN 104142589 A CN104142589 A CN 104142589A
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- liquid crystal
- antiglare film
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Abstract
The invention provides a liquid crystal panel with an anti-dazzle function. The liquid crystal panel comprises a color filter substrate, a liquid crystal layer and an array substrate. The liquid crystal layer is located between the color filter substrate and the array substrate. The liquid crystal panel further comprises an upper polarizing plate, a first anti-dazzle film, a lower polarizing plate and a second anti-dazzle film, wherein the upper polarizing plate is located on the color filter substrate, the first anti-dazzle film is formed on the upper polarizing plate, the lower polarizing plate is located beneath the array substrate and the second anti-dazzle film is formed beneath the lower polarizing plate. The haze of the second anti-dazzle film is higher than that of the first anti-dazzle film. Compared with the prior art, the upper polarizing plate and the lower polarizing plate of the liquid crystal panel are matched with the first anti-dazzle film and the second anti-dazzle film which are different in haze, an ultrahigh-fineness anti-dazzle film is attached to the upper polarizing plate, a high-fineness anti-dazzle film is attached to the lower polarizing plate, therefore, the problem of double dazzling of an existing liquid crystal panel can be effectively solved, and the penetration rate of light can be increased further.
Description
Technical field
The present invention relates to a kind of lcd technology, relate in particular to a kind of liquid crystal panel with anti-dazzle function.
Background technology
In the prior art, in order to prevent that environment light source from reaching liquid crystal display (Liquid Crystal Display, LCD) dazzle (sparking) that surface produces, part liquid crystal display machine can be used cloudy surface surface treatment mode, that is, antiglare film (anti-glare film) is set on the surface of liquid crystal display.Here, dazzle represents that the broken bright spot of different colours is also distributed in the phenomenon on whole liquid crystal panel randomly with varying strength.
In making technology, thereby part antiglare film can make surface produce roughness scattering external light source with electricity slurry or etching mode, and then reaches abblendbar.But, once surface roughness is too high, easily make picture contrast decline.In order to improve this defect, existing antiglare film can be mixed macromolecular scattering particle conventionally, causes surface to have roughness to a certain degree, and base material also can have refractive index difference with particulate simultaneously in addition, to reach the effect of dual scattering.
Yet, along with liquid crystal panel resolution (resolution) in recent years improves constantly, in order to tackle its aperture opening ratio, decline, often in backlight collocation, use the optical thin film with brightening effect, such as DBEF (Dual Brightness Enhance Film, dual brightness enhancement film).Dual brightness enhancement film is a kind of reflective polarizers, by the light of selective reflecting backlight module, it is not absorbed by the lower polaroid of liquid crystal display, thereby the part light at the full visual angle of liquid crystal display is re-used.Usually, DBEF series thin film comprises DBEF-M, DBEF-D and DBEF-D200.For example, DBEF-M, by coating diffusion layer, can prevent the optics contact with other materials, when using together with brightness enhancement film etc., can alleviate again the effect of reflection mole phenomenon simultaneously; DBEF-D is at the bonding diffusion sheet in its two sides, has both increased intensity, can improve thermal stability again; And the structure of DBEF-D200 is identical with DBEF-D, just to compare DBEF-D thinner for its thickness, is 200um.But above-mentioned dual brightness enhancement film can make between film material backlight and pixel, and between pixel and cloudy surface surface treatment, produce dual glare problem (double sparking issue), cause the vision quality of liquid crystal panel to decline to a great extent.
In view of this, how designing a kind of liquid crystal panel with anti-dazzle function, to solve or to eliminate above-mentioned defect of the prior art, is a person skilled problem urgently to be resolved hurrily in the industry.
Summary of the invention
For liquid crystal panel of the prior art existing above-mentioned defect when the anti-dazzle design, the invention provides liquid crystal panel a kind of novelty, that there is anti-dazzle function.For example, the present invention uses the meticulous antiglare film of superelevation (super fine anti-glare film) and fine antiglare film (fine anti-glare film) to arrange in pairs or groups mutually, to solve the visual problem of conventional images bad in response to the liquid crystal panel of high-res.
According to one aspect of the present invention, a kind of liquid crystal panel with anti-dazzle function is provided, comprise a colored filter substrate, a liquid crystal layer and array basal plate, described colored filter substrate and described array base palte are positioned opposite to each other, described liquid crystal layer is between described colored filter substrate and described array base palte, and this liquid crystal panel also comprises:
Polarizer on one, is positioned at the top of described colored filter substrate;
One first antiglare film, is formed at the top of described upper Polarizer;
Polarizer once, is positioned at the below of described array base palte; And
One second antiglare film, is formed at the below of described lower Polarizer, and wherein, the mist degree of described the second antiglare film is greater than the mist degree of described the first antiglare film.
An embodiment therein, the difference of the mist degree of the mist degree of described the second antiglare film and described the first antiglare film is between 20～55.
An embodiment therein, the product of the mist degree of the mist degree of described the second antiglare film and described the first antiglare film is between 0～500.
An embodiment therein, the mist degree of described the first antiglare film is less than 10, and meets following relational expression:
5.5<G*H<50；
G+H*10<52,
G represents that the specular angle of described the first antiglare film is 20 gloss values while spending, and H is haze value.
An embodiment therein, the mist degree of described the first antiglare film is between 0～5.
An embodiment therein, the mist degree of described the second antiglare film is greater than 20, and meets following relational expression:
Ra/G<5nm，
Ra represents the surfaceness of described the second antiglare film, and G represents that the specular angle of described the second antiglare film is 20 gloss values while spending.
An embodiment therein, the mist degree of described the second antiglare film is between 25～60.
An embodiment therein, the image analytic degree of described liquid crystal panel is more than or equal to 80PPI (Point Per Inch).
Adopt the liquid crystal panel with anti-dazzle function of the present invention, the first antiglare film is formed to the top of upper Polarizer, the second antiglare film is formed at the below of lower Polarizer, and the mist degree of the second antiglare film is greater than the mist degree of the first antiglare film.Than prior art, the present invention is by arrange in pairs or groups the respectively antiglare film of different mist degrees of the upper Polarizer of liquid crystal panel and lower Polarizer, utilize the meticulous antiglare film of superelevation to be attached at Polarizer and fine antiglare film is attached at lower Polarizer, thereby can effectively improve the dual glare problem of available liquid crystal panel, and can improve light transmittance.
Accompanying drawing explanation
Reader, after having read the specific embodiment of the present invention with reference to accompanying drawing, will become apparent various aspects of the present invention.Wherein,
Fig. 1 (a) and Fig. 1 (b) illustrate respectively the anti-dazzle structural representation of liquid crystal panel of the prior art;
Fig. 2 illustrates high-res liquid crystal panel of the prior art and after adopting two brightness enhancement film, occurs the view of dual dazzle; And
Fig. 3 illustrates according to one embodiment of the present invention, has the structural representation of the liquid crystal panel of anti-dazzle function.
Embodiment
For the technology contents that the application is disclosed is more detailed and complete, can be with reference to accompanying drawing and following various specific embodiments of the present invention, in accompanying drawing, identical mark represents same or analogous assembly.Yet those of ordinary skill in the art should be appreciated that the embodiment that hereinafter provided is not used for limiting the scope that the present invention is contained.In addition, accompanying drawing, only for being schematically illustrated, is not drawn according to its life size.
With reference to the accompanying drawings, the embodiment of various aspects of the present invention is described in further detail.
Fig. 1 (a) and Fig. 1 (b) illustrate respectively the anti-dazzle structural representation of liquid crystal panel of the prior art.
With reference to Fig. 1 (a), the liquid crystal panel of prior art comprises a colored filter substrate 100, a liquid crystal layer 102 and array basal plate 104.Wherein, colored filter substrate 100 and array base palte 104 are positioned opposite to each other.Liquid crystal layer 102 is between colored filter substrate 100 and array base palte 104.In addition, upper Polarizer 106 is formed at the top of colored filter substrate 100, and lower Polarizer 108 is formed at the below of array base palte 104.
As previously mentioned, in order to prevent that environment light source from arriving the dazzle (sparking) that liquid crystal display surface produces, part liquid crystal display machine can be used cloudy surface surface treatment mode,, antiglare film (anti-glare film) 110 is set on the surface of upper Polarizer 106, by this antiglare film 110, successfully prevents that external light source from disturbing the dazzle producing.In addition,, in order to improve anti-dazzle performance, also can use fine antiglare film (fine anti-glare film) 110 ' to be attached at the surface of Polarizer 106, as shown in Fig. 1 (b).
In addition, along with liquid crystal panel resolution (resolution) in recent years improves constantly, for tackling its aperture opening ratio, decline, often in backlight collocation, use the optical thin film with brightening effect, such as DBEF (Dual Brightness Enhance Film, dual brightness enhancement film) 200.This dual brightness enhancement film is arranged on backlight film material 202.
Fig. 2 illustrates high-res liquid crystal panel of the prior art and after adopting two brightness enhancement film, occurs the view of dual dazzle.
With reference to Fig. 2, after using dual brightness enhancement film, this dual brightness enhancement film can make between film material 300 backlight and pixel (such as sub-pixel R, sub-pixel G and sub-pixel B) 302 (as shown in the S1 of interface), and pixel 302 and cloudy surface surface treatment are (, antiglare film 304) between, (as shown in the S2 of interface) produces dual glare problem (double sparking issue), causes the vision quality of liquid crystal panel to decline to a great extent.
Fig. 3 illustrates according to one embodiment of the present invention, has the structural representation of the liquid crystal panel of anti-dazzle function.
With reference to Fig. 3, in illustrative examples of the present invention, this liquid crystal panel comprises one first antiglare film 112 and one second antiglare film 114.Other structural sheet that it will be understood by those of skill in the art that liquid crystal panel is basic identical or similar with Fig. 1 (b) to Fig. 1 (a), for describing for simplicity, repeats no more herein.
Particularly, the first antiglare film 112 is formed at the top of Polarizer 106.The second antiglare film 114 is formed at the below of lower Polarizer 108.And the mist degree of the second antiglare film 114 is greater than the mist degree of the first antiglare film 112.For example, the first antiglare film 112 is the meticulous antiglare film of superelevation, and the second antiglare film 114 is fine antiglare film.Hence one can see that, the present invention is by arrange in pairs or groups the respectively antiglare film of different mist degrees of the upper Polarizer of liquid crystal panel and lower Polarizer, utilize the meticulous antiglare film of superelevation to be attached at Polarizer and fine antiglare film is attached at lower Polarizer, thereby can effectively improve the dual glare problem of available liquid crystal panel, and can improve light transmittance.
Table 1 is the comparison schematic diagram between the meticulous antiglare film of polytype superelevation and polytype fine antiglare film.In table 1, total haze value of the meticulous antiglare film A～E of superelevation is all between 0～5, and total haze value of fine antiglare film 1～5 is all between 25～60.In addition, the haze value of the meticulous antiglare film of any one superelevation is all less than the haze value of any one fine antiglare film.
Table 1
In one embodiment, the image analytic degree of liquid crystal panel is more than or equal to 80PPI (Point Per Inch).In other words, the meticulous antiglare film of the superelevation of different mist degrees is attached to upper Polarizer in the present invention and fine antiglare film is attached at lower Polarizer, and while being applied to the higher liquid crystal panel of image analytic degree, antiglare effect is better.
In one embodiment, the product of the mist degree of the mist degree of the second antiglare film 114 and the first antiglare film 112 is between 0～500.Table 2 is the gloss value of polytype antiglare film and the data comparison sheet of total haze value, and wherein, antiglare film A, B, C, D and E are the meticulous antiglare film of superelevation, as shown in the bolded section in table 2.
Table 2
| Antiglare film title | Gloss value (G) | Total haze value (H) | G*H | G+H*10 |
| A | 21.9 | 0.3 | 6.57 | 24.9 |
| B | 14 | 2.3 | 32.2 | 37 |
| C | 33.4 | 0.2 | 6.68 | 35.4 |
| D | 25 | 0.4 | 10 | 29 |
| E | 36.5 | 1.3 | 47.45 | 49.5 |
| 1 | 22.7 | 0.1 | 2.27 | 23.7 |
| 2 | 21 | 0.1 | 2.1 | 22 |
| 3 | 25.1 | 0.2 | 5.02 | 27.1 |
| 4 | 35.8 | 2.8 | 100.24 | 63.8 |
| 5 | 48 | 1.4 | 67.2 | 62 |
| 6 | 40.2 | 1.9 | 76.38 | 59.2 |
| 7 | 36 | 1.8 | 64.8 | 54 |
| 8 | 79.2 | 1 | 79.2 | 89.2 |
| 9 | 42.2 | 1.2 | 50.64 | 54.2 |
As can be drawn from Table 2, the mist degree of the first antiglare film 112 is less than 10, and meets following relational expression: 5.5<G*H<50 and G+H*10<52.G represents that the specular angle of the first antiglare film 112 is 20 gloss values while spending, and H is haze value.In addition, also can be as seen from Table 2, the G*H of other antiglare film outside the meticulous antiglare film of superelevation is to product or be less than 5.5 (as 2.27,2.1 or 5.02), or is greater than 50 (as 50.64,67.2 or 100.24 etc.).
In one embodiment, the mist degree of the second antiglare film 114 is greater than 20, and meet following relational expression: Ra/G<5nm, Ra represents the surfaceness of the second antiglare film 114, G represents that the specular angle of the second antiglare film 114 is 20 gloss values while spending.Table 3 is the surfaceness of polytype antiglare film and the data comparison sheet of gloss value, and wherein, AGS1 is common antiglare film, and AG150 and AG200 are fine antiglare film.From above, the antiglare effect of common antiglare film is poor, and the antiglare effect of fine antiglare film is better.
Table 3
| Antiglare film title | Surfaceness (Ra) | Gloss value (G) | Ra/G |
| AGS1 | 47.37nm | 4.3 | 11.02 |
| AG150 | 36.83nm | 11.13 | 3.31 |
| AG200 | 23.26nm | 24.23 | 0.96 |
As can be seen from Table 3, AGS1 is common antiglare film, and surface roughness Ra is 47.37 nanometers (nm), and its corresponding Ra/G is 11.02nm, higher than 5nm, does not therefore meet the condition as the second antiglare film 114.And the surface roughness Ra of AG150 is 36.83 nanometers (nm), its corresponding Ra/G is 3.31nm, lower than 5nm, can be used as the second antiglare film 114.
In one embodiment, the difference of the mist degree of the mist degree of the second antiglare film 114 and the first antiglare film 112 is between 20～55.Table 4 be after the collocation of polytype antiglare film at the mist degree of colored filter substrate one side, the data comparison sheet of the mist degree of array base palte one side and total mist degree and anti-dazzle assessment result.
Table 4
| Sample number | Antiglare film collocation type | CF side mist degree | TFT side mist degree | Total haze value | Assessment result |
| 1 | HLAG6+AG150 | 1 | 40 | 39 | Y |
| 2 | HLAG6+AG470 | 1 | 25 | 24 | Y |
| 3 | HLAG6+AG200 | 1 | 50 | 49 | Y |
| 4 | AG150 | 40 | - | -40 | N |
| 5 | AG480 | 2 | - | -2 | N |
| 6 | AGSR6+AGSR6 | 10 | 10 | 0 | N |
| 7 | AGS1+AG480 | 25 | 2 | -23 | N |
| 8 | AGS1+AG150 | 25 | 40 | 15 | N |
| 9 | AGSR6+AG470 | 10 | 25 | 15 | N |
As known from Table 4, when the collocation of colored filter (CF) side is compared with the fine antiglare film of the meticulous antiglare film of the superelevation of low haze and the higher mist degree of TFT side collocation, and when both mist degree differences meet certain scope, can make the dual glare problem of liquid crystal panel be eliminated.For example, the antiglare film collocation type of sample number 1～3 is, CF side adopts the meticulous antiglare film of superelevation, TFT side adopts fine antiglare film, and total haze value minimum is 24, is 40 to the maximum, (be for example all positioned at the setting range of mist degree difference, between 20～55), so assessment result is Y, can avoid by this dual dazzle.For the antiglare film collocation type of sample number 4～5, it is only provided with antiglare film in CF side, and does not have antiglare film in TFT side, and its total haze value is correspondingly also negative value.And for the antiglare film collocation type of sample number 7, the haze value of the antiglare film of its CF side is higher than the haze value of the antiglare film of TFT side, thereby also cannot eliminate the dual glare problem of liquid crystal panel.
Adopt the liquid crystal panel with anti-dazzle function of the present invention, the first antiglare film is formed to the top of upper Polarizer, the second antiglare film is formed at the below of lower Polarizer, and the mist degree of the second antiglare film is greater than the mist degree of the first antiglare film.Than prior art, the present invention is by arrange in pairs or groups the respectively antiglare film of different mist degrees of the upper Polarizer of liquid crystal panel and lower Polarizer, utilize the meticulous antiglare film of superelevation to be attached at Polarizer and fine antiglare film is attached at lower Polarizer, thereby can effectively improve the dual glare problem of available liquid crystal panel, and can improve light transmittance.
Above, describe the specific embodiment of the present invention with reference to the accompanying drawings.But those skilled in the art can understand, without departing from the spirit and scope of the present invention in the situation that, can also do various changes and replacement to the specific embodiment of the present invention.These changes and replacement all drop in the claims in the present invention book limited range.
Claims (8)
1. a liquid crystal panel with anti-dazzle function, comprise a colored filter substrate, a liquid crystal layer and array basal plate, described colored filter substrate and described array base palte are positioned opposite to each other, described liquid crystal layer is between described colored filter substrate and described array base palte, it is characterized in that, this liquid crystal panel also comprises:
Polarizer on one, is positioned at the top of described colored filter substrate;
One first antiglare film, is formed at the top of described upper Polarizer;
Polarizer once, is positioned at the below of described array base palte; And
One second antiglare film, is formed at the below of described lower Polarizer,
Wherein, the mist degree of described the second antiglare film is greater than the mist degree of described the first antiglare film.
2. the liquid crystal panel with anti-dazzle function according to claim 1, is characterized in that, the difference of the mist degree of the mist degree of described the second antiglare film and described the first antiglare film is between 20～55.
3. the liquid crystal panel with anti-dazzle function according to claim 1, is characterized in that, the product of the mist degree of the mist degree of described the second antiglare film and described the first antiglare film is between 0～500.
4. the liquid crystal panel with anti-dazzle function according to claim 1, is characterized in that, the mist degree of described the first antiglare film is less than 10, and meets following relational expression:
5.5<G*H<50；
G+H*10<52，
Wherein, G represents that the specular angle of described the first antiglare film is 20 gloss values while spending, and H is haze value.
5. the liquid crystal panel with anti-dazzle function according to claim 4, is characterized in that, the mist degree of described the first antiglare film is between 0～5.
6. the liquid crystal panel with anti-dazzle function according to claim 1, is characterized in that, the mist degree of described the second antiglare film is greater than 20, and meets following relational expression:
Ra/G<5nm，
Wherein, Ra represents the surfaceness of described the second antiglare film, and G represents that the specular angle of described the second antiglare film is 20 gloss values while spending.
7. the liquid crystal panel with anti-dazzle function according to claim 6, is characterized in that, the mist degree of described the second antiglare film is between 25～60.
8. the liquid crystal panel with anti-dazzle function according to claim 1, is characterized in that, the image analytic degree of described liquid crystal panel is more than or equal to 80PPI.
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| CN201410381290.9A CN104142589A (en) | 2014-08-05 | 2014-08-05 | Liquid crystal panel with anti-dazzle function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676459A (en) * | 2016-01-21 | 2016-06-15 | 友达光电股份有限公司 | Display module and head-mounted display device using same |
| CN109856714A (en) * | 2018-10-23 | 2019-06-07 | 友达光电股份有限公司 | The display of light leakage prevention film assembly and application the light leakage prevention film assembly |
| CN113791505A (en) * | 2021-08-12 | 2021-12-14 | 惠州Tcl云创科技有限公司 | Scattering screen module, display screen and mobile terminal |
| WO2022141918A1 (en) * | 2020-12-28 | 2022-07-07 | 广东小天才科技有限公司 | Display screen and terminal device |
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2014
- 2014-08-05 CN CN201410381290.9A patent/CN104142589A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676459A (en) * | 2016-01-21 | 2016-06-15 | 友达光电股份有限公司 | Display module and head-mounted display device using same |
| CN105676459B (en) * | 2016-01-21 | 2018-04-13 | 友达光电股份有限公司 | Display module and head-mounted display device using same |
| CN109856714A (en) * | 2018-10-23 | 2019-06-07 | 友达光电股份有限公司 | The display of light leakage prevention film assembly and application the light leakage prevention film assembly |
| CN109856714B (en) * | 2018-10-23 | 2021-06-04 | 友达光电股份有限公司 | Light leakage prevention film assembly and display using same |
| WO2022141918A1 (en) * | 2020-12-28 | 2022-07-07 | 广东小天才科技有限公司 | Display screen and terminal device |
| CN113791505A (en) * | 2021-08-12 | 2021-12-14 | 惠州Tcl云创科技有限公司 | Scattering screen module, display screen and mobile terminal |
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Application publication date: 20141112 |