CN102023413B - Liquid crystal display (LCD) and double axis compensation membrane - Google Patents
Liquid crystal display (LCD) and double axis compensation membrane Download PDFInfo
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- CN102023413B CN102023413B CN200910174752.9A CN200910174752A CN102023413B CN 102023413 B CN102023413 B CN 102023413B CN 200910174752 A CN200910174752 A CN 200910174752A CN 102023413 B CN102023413 B CN 102023413B
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Abstract
The invention discloses a LCD and a double axis compensation membrane. The LCD comprises a liquid crystal display panel and a double axis compensation membrane. The liquid crystal display panel has a first surface and a second surface; the double axis compensation membrane which is located on the first surface of the liquid crystal display panel comprises a C-plate compensation membrane and a plurality of nanostructureds positioned on the C-plate compensation membrane for forming an A-plate compensation membrane. The double shaft compensation membrane can be prepared by the material with high heat resistance and low cost, so it can be built inside the liquid crystal display panel.
Description
Technical field
The present invention relates to a kind of blooming, and the liquid crystal display that particularly relates to a kind of biaxial compensation film and use this biaxial compensation film.
Background technology
Liquid crystal display is comprised of display panels and upper and lower polaroid basically, and provides light source by backlight module.The video picture principle of liquid crystal display is to use electric field controls liquid crystal layer liquid crystal to turn to impact by the polarization state of the line polarisation of lower polaroid, produces the variation of controlling emergent light intensity and then demonstrate the bright image that secretly presents after the effect of upper polaroid.When operation is shown as dark state, at positive visual angle, can see complete black state.But, when watching at the side-looking angle, because liquid crystal causes bit phase delay, light can't effectively be blocked the phenomenon that produces light leak by upper and lower Polarizer the time, therefore generally mostly need additional compensate film to revise the effect of phase delay.
The mode that existing compensate film main flow is pasted beyond being is attached to the outer surface of display panels.Because this kind of outer the subsides shows that compensate film is that the stretch mode of macromolecular material is made, its thickness all, more than tens of microns, therefore can't be made in display panels (in-cell).In addition, there is small part to use the liquid crystal coating process to make compensate film and it can be made in to (in-cell) in display panels.But this kind can be made in compensate film material in display panels, the problems such as the thermotolerance of liquid crystal material is not enough and expensive are arranged.
Summary of the invention
The invention provides a kind of biaxial compensation film, its can be made in display panels also can beyond the subsides mode be attached at the display panels outside.
The invention provides a kind of display panels, it has above-mentioned biaxial compensation film.
The present invention proposes a kind of liquid crystal display, and it comprises display panels and biaxial compensation film.Display panels has first surface and second surface.Biaxial compensation film is positioned on the first surface of display panels, and wherein biaxial compensation film comprises C-plate compensate film and is positioned on C-plate compensate film to form a plurality of nanostructureds of A-plate compensate film.
The present invention proposes a kind of liquid crystal display, and it comprises display panels and biaxial compensation film.Display panels comprises the liquid crystal layer between first substrate, second substrate and first substrate and second substrate.Biaxial compensation film is between liquid crystal layer and first substrate, and wherein biaxial compensation film comprises C-plate (C-plate) compensate film and is positioned on C-plate compensate film to form a plurality of nanostructureds of A-plate (A-plate) compensate film.
The present invention proposes a kind of biaxial compensation film, and it comprises C-plate (C-plate) compensate film and a plurality of nanostructured.Nanostructured is positioned on C-plate compensate film to form A-plate (A-plate) compensate film.
Based on above-mentioned, because biaxial compensation film of the present invention comprises C-plate compensate film and is positioned on C-plate compensate film a plurality of nanostructureds of usining as A-plate compensate film.There is thermotolerance and lower cost materials is made because this biaxiality compensate film can be used, therefore it can be made in display panels.Certainly, the mode that the user can also paste in addition is attached to the outside of display panels outward.
For above-mentioned feature of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
The accompanying drawing explanation
Figure 1A to Figure 1B is the manufacturing process schematic diagram according to the biaxial compensation film of the embodiment of the present invention.
Fig. 2 to Figure 11 is to the diagrammatic cross-section of the liquid crystal display of several embodiment according to the present invention.
Description of reference numerals
100: substrate
102,102a:C-plate compensate film
102b: nanostructured
104: biaxial compensation film
150: both alignment layers
160: compensate film
200: display panels
202a: first surface
202b: second surface
202: first substrate
204: liquid crystal layer
206: second substrate
250a, 250b: biaxial compensation film
300a, 300b: polaroid
W: live width
P: cycle
Embodiment
Figure 1A to Figure 1B is the manufacturing process schematic diagram according to the biaxial compensation film of the embodiment of the present invention.Please refer to Figure 1A, at first on substrate 100, form C-plate compensate film 102.The method that forms C-plate compensate film 102 is for example the mode that adopts coating, and its material is for generally being usually used in the polymeric material of C-plate compensate film 102.In addition, substrate 100 can be blank substrate or has been formed with the substrate of other retes or element.
Afterwards, please refer to Figure 1B, above-mentioned C-plate compensate film 102 is carried out to the nano-patterning program, wherein this nano-patterning program is that above-mentioned C-plate compensate film 102 is carried out to local patterning, to retain the C-plate compensate film 102a of base section, and a plurality of nanostructured 102b of formation are usingd as A-plate compensate film on C-plate compensate film 102a.Therefore C-plate compensate film 102a forms biaxial compensation film with the A-plate compensate film consisted of nanostructured 102b.Above-mentioned nano-patterning program can adopt laser, ion beam or electron beam to carry out patterning, also can adopt in addition photoetching etching program or nanometer embossing to carry out patterning.
In the present embodiment, formed nanostructured 102b is strip structure, and the live width W of each nanostructured 102b is less than 200 nanometers, and the cycle P of each nanostructured 102b is less than 250 nanometers.Preferably, the live width W of each nanostructured 102b is less than 100 nanometers, and the cycle P of each nanostructured 102b is less than 150 nanometers.In addition, above-mentioned nanostructured 102b is arranged in parallel with each other, and its bearing of trend can be relevant with the polarization direction of arranged in pairs or groups polaroid.
From the above, in the present embodiment, substrate 100 can be blank substrate or has been formed with the substrate of other retes or element.If substrate 100 is blank substrate, be formed on so biaxial compensation film 104 on blank substrate 100 can beyond the mode of pasting be attached on display panels.If substrate 100 is for being formed with the substrate of other retes or element, this biaxial compensation film 104 is the compensate film that is made in (in-cell) in display panels so.Below by the mode of pasting beyond explanation, by compensate film, be attached on display panels and the several embodiment that compensate film are made in to (in-cell) in display panels.
Fig. 2 is the diagrammatic cross-section according to the liquid crystal display of the embodiment of the present invention.Please refer to Fig. 2, this liquid crystal display comprises display panels 200, the first biaxial compensation film 250a and the second biaxial compensation film 250b.Preferably, this liquid crystal display also comprises the first polaroid 300a and the second polaroid 300b.It is worth mentioning that, in the liquid crystal display of some special patterns, can not need to use polaroid, or only need polaroid be set on a wherein surface of display panels.Therefore, in liquid crystal display of the present invention, polaroid non-essential element.
In the present embodiment, the first biaxial compensation film 250a is positioned on the first surface 200a of display panels 200, and the second biaxial compensation film 250b is positioned on the second surface 200b of display panels 200.The first biaxial compensation film 250a and the second biaxial compensation film 250b are respectively biaxial compensation film 104 (being consisted of C-plate compensate film 102a and nanostructured 102b) as described in Figure 1, or substrate as described in Figure 1 100 be positioned at the biaxial compensation film 104 on substrate 100.In other words, the first biaxial compensation film 250a and the second biaxial compensation film 250b can be formed directly into respectively on the surface of first substrate 202 and second substrate 206, and need not sticky material and other substrates between the first/the second biaxial compensation film 250a/250b and first/second substrate 202/206.In addition, the first biaxial compensation film 250a and the second biaxial compensation film 250b also can be the compensate film be carried on substrate (as the substrate 100 of Fig. 1), and it is adhered together this bearing substrate and first/second substrate 202/206 by sticky material.
In addition, it is upper that the first polaroid 300a is positioned at the first biaxial compensation film 250a, and the second polaroid 300b is positioned on the second biaxial compensation film 250b.On the outside surface that is positioned at display panels 200 due to the first biaxial compensation film 250a and the second biaxial compensation film 250b of the present embodiment (first surface 200a and second surface 200b), thus the biaxial compensation film of the present embodiment mode of pasting beyond being or directly coating method be formed on the surface of display panels 200.
The embodiment of above-mentioned Fig. 2 forms the first biaxial compensation film 250a and the second biaxial compensation film 250b with attaching mode or direct coating method respectively at the first surface 200a of display panels 200 and second surface 200b.Yet, in other embodiment, can also only on a wherein surface of display panels 200, with attaching or direct coating method, form biaxial compensation film.As shown in Figure 3 and Figure 4, Fig. 3 is similar to the embodiment of Fig. 2 to the embodiment of Fig. 4, and difference is in the embodiments of figure 3, only on the first surface 200a of display panels 200, with attaching or direct coating method, forms biaxial compensation film 250a.In addition, in the embodiment of Fig. 4, only on the second surface 200b of display panels 200, with attaching or direct coating method, form biaxial compensation film 250b.
Fig. 5 is the diagrammatic cross-section according to the liquid crystal display of the embodiment of the present invention.Please refer to Fig. 5, this liquid crystal display comprises display panels 200 and the first polaroid 300a and the second polaroid 300b.Display panels 200, except comprising first substrate 202, second substrate 206 and liquid crystal layer 204, has also comprised the first biaxial compensation film 250a and the second biaxial compensation film 250b.In other words, in the embodiment of Fig. 5, the first biaxial compensation film 250a and the second biaxial compensation film 250b are formed on the inside of display panels 200.
More specifically, first substrate 202 is active elements array substrates, and it has pel array, and described pel array comprises multi-strip scanning line, many data lines, a plurality of thin film transistor (TFT) and a plurality of pixel electrodes.The first biaxial compensation film 250a covers on above-mentioned pel array.Therefore the first biaxial compensation film 250a is between the pel array and liquid crystal layer 204 of first substrate 202.In the present embodiment, the first biaxial compensation film 250a is formed directly on pel array, and therefore the first biaxial compensation film 250a is with the biaxial compensation film 104 as Fig. 1.Because the first biaxial compensation film 250a is arranged in abutting connection with liquid crystal layer 204 parts, and have the nanostructured as A-plate compensate film on the first biaxial compensation film 250a, this nanostructured can produce the effect of orientation simultaneously to the liquid crystal molecule of liquid crystal layer 204.Therefore, the present embodiment is arranged at the first biaxial compensation film 250a the function that can simultaneously have both alignment layers in display panels 200, thereby the making that can save traditional both alignment layers.
Similarly, this liquid crystal display also can comprise the first polaroid 300a and the second polaroid 300b, the first polaroid 300a is positioned on the first surface 200a of display panels 200, and the second polaroid 300b is positioned on the second surface 200b of display panels 200.It is worth mentioning that, in the liquid crystal display of some special patterns, can not need to use polaroid, or only need polaroid be set on a wherein surface of display panels.Therefore, in liquid crystal display of the present invention, polaroid non-essential element.
The embodiment of above-mentioned Fig. 5 forms respectively the first biaxial compensation film 250a and the second biaxial compensation film 250b on the first substrate 202 of display panels 200 and second substrate 206.Yet, in other embodiment, can also be only at display panels 200, wherein on a substrate, form biaxial compensation film.As shown in Figures 6 and 7, Fig. 6 is similar to the embodiment of Fig. 5 to the embodiment of Fig. 7, difference is in the embodiment of Fig. 6, only on the first substrate 202 of display panels 200, form biaxial compensation film 250a, this biaxial compensation film 250a can be simultaneously as the use of the both alignment layers of first substrate 202, therefore on second substrate 206, can form in addition traditional both alignment layers 150.In addition, in the embodiment of Fig. 7, only on the second substrate 206 of display panels 200, form biaxial compensation film 250b, this biaxial compensation film 250b can be simultaneously as the use of the both alignment layers of second substrate 206, therefore on first substrate 202, can form in addition traditional both alignment layers 150.
Fig. 8 is the diagrammatic cross-section according to the liquid crystal display of the embodiment of the present invention.The embodiment of Fig. 8 is similar to the embodiment of Fig. 6, namely, it only arranges the first biaxial compensation film 250a on first substrate 202, and both alignment layers 150 is set on second substrate 206, and both differences are that the embodiment of Fig. 8 also arranges traditional compensate film 160 on second substrate 200, it is between both alignment layers 150 and second substrate 206.In other words, in the embodiment of Fig. 8, on first substrate 202, be to adopt the biaxial compensation film 250a with orientation function of the present invention, on second substrate 206, be traditional both alignment layers and traditional compensate film are set.
Fig. 9 is the diagrammatic cross-section according to the liquid crystal display of the embodiment of the present invention.The embodiment of Fig. 9 is similar to the embodiment of Fig. 7, namely, it only arranges the second biaxial compensation film 250b on second substrate 206, and both alignment layers 150 is set on first substrate 202, and both differences are that the embodiment of Fig. 9 also arranges traditional compensate film 160 on first substrate 200, it is between both alignment layers 150 and first substrate 202.In other words, in the embodiment of Fig. 9, on second substrate 206, be to adopt the biaxial compensation film 250b with orientation function of the present invention, on first substrate 202, be traditional both alignment layers and traditional compensate film are set.
The embodiment of above-mentioned Fig. 2 to Fig. 4 pastes beyond being or direct coating method is formed at biaxial compensation film of the present invention the outside surface of display panels.The embodiment of in addition above-mentioned Fig. 5 to Fig. 9 is made in biaxial compensation film of the present invention in display panels.So, the invention is not restricted to above-described embodiment, in other embodiment, can also be that outer subsides or direct coating method are combined with the mode be made in display panels, as described below.
Figure 10 is the diagrammatic cross-section according to the display panels of the embodiment of the present invention.Please refer to Figure 10, in the embodiment of Figure 10, the first biaxial compensation film 250a is arranged on the first surface 200a of display panels 200, and the second biaxial compensation film 250b is between second substrate 206 and liquid crystal layer 204.In other words, beyond the first biaxial compensation film 250a, subsides or direct coating method are formed at the outside surface of display panels 200, and the second biaxial compensation film 250b is made in the inside of display panels 200.Because the second biaxial compensation film 250b is made in the inside of display panels 200, and itself and liquid crystal layer 204 adjacency, therefore the second biaxial compensation film 250b can be simultaneously as the use of the both alignment layers of second substrate 206.Yet, because the first biaxial compensation film 250a pastes beyond being or direct coating method is formed at the outside surface of the first substrate 202 of display panels 200, so between first substrate 202 and liquid crystal layer 204, traditional both alignment layers 150 can be set in addition.Similarly, in this embodiment, liquid crystal display also can comprise the first polaroid 300a and the second polaroid 300b, it is upper that the first polaroid 300a is positioned at the first biaxial compensation film 250a, and the second polaroid 300b is positioned at the second surface 200b upper (on the surface of second substrate 206) of display panels 200.
Figure 11 is the diagrammatic cross-section according to the display panels of the embodiment of the present invention.Please refer to Figure 11, in the embodiment of Figure 11, the first biaxial compensation film 250a is arranged between first substrate 202 and liquid crystal layer 204, and the second biaxial compensation film 250b is positioned on the second surface 200b of display panels 200.In other words, the first biaxial compensation film 250a is made in the inside of display panels 200, the outside surface that the second biaxial compensation film 250b pastes in addition or directly coating method is formed at display panels 200.Because the first biaxial compensation film 250a is made in the inside of display panels 200, and itself and liquid crystal layer 204 adjacency, therefore the first biaxial compensation film 250a can be simultaneously as the use of the both alignment layers of first substrate 202.Yet, because the second biaxial compensation film 250b pastes in addition or direct coating method is formed at the outside surface of the second substrate 206 of display panels 200, so between second substrate 206 and liquid crystal layer 204, traditional both alignment layers 150 can be set in addition.Similarly, in this embodiment, liquid crystal display also can comprise the first polaroid 300a and the second polaroid 300b, the first polaroid 300a is positioned at the first surface 200a upper (on the surface of first substrate 202) of display panels 200, and the second polaroid 300b is positioned on the second biaxial compensation film 250b.
In sum, comprise C-plate compensate film due to biaxial compensation film of the present invention and a plurality of nanostructureds of being positioned on C-plate compensate film are usingd as A-plate compensate film.There is thermotolerance and lower cost materials is made because this biaxiality compensate film can be used, therefore it can be made in display panels.Certainly, the outside that the user can also paste in addition or directly coating method is formed at display panels.
Although the present invention discloses as above with embodiment; so it is not in order to limit the present invention; those of ordinary skill in technical field under any; without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore protection scope of the present invention defines and is as the criterion when looking appended claim.
Claims (21)
1. a liquid crystal display comprises:
Display panels, it has first surface and second surface;
The first biaxial compensation film, be positioned on this first surface of this display panels, wherein this first biaxial compensation film comprises a C-plate compensate film and is positioned on a C-plate compensate film to form a plurality of first nanostructureds of an A-plate compensate film, described the first nanostructured is strip structure, the live width of each the first nanostructured is less than 200 nanometers, and the cycle of each the first nanostructured is less than 250 nanometers, the first nanostructured of a wherein said A-plate compensate film contacts with a described C-plate compensate film, and the material of the first nanostructured of a described A-plate compensate film is identical with the material of a described C-plate compensate film.
2. liquid crystal display as claimed in claim 1, wherein the live width of each the first nanostructured is less than 100 nanometers, and the cycle of each the first nanostructured is less than 150 nanometers.
3. liquid crystal display as claimed in claim 1 also comprises:
The first polaroid, be positioned on this first biaxial compensation film; And
The second polaroid, be positioned on this second surface of this display panels.
4. liquid crystal display as claimed in claim 1, also comprise the second biaxial compensation film, be positioned on this second surface of this display panels, wherein this second biaxial compensation film comprises the 2nd C-plate compensate film and is positioned on the 2nd C-plate compensate film to form a plurality of second nanostructureds of the 2nd A-plate compensate film.
5. liquid crystal display as claimed in claim 4, wherein the live width of each the second nanostructured is less than 200 nanometers, and the cycle of each the second nanostructured is less than 250 nanometers.
6. liquid crystal display as claimed in claim 4, wherein the live width of each the second nanostructured is less than 100 nanometers, and the cycle of each the second nanostructured is less than 150 nanometers.
7. liquid crystal display as claimed in claim 1, wherein this display panels comprises:
First substrate;
Second substrate; And
Liquid crystal layer, between this first substrate and this second substrate, wherein this first biaxial compensation film is positioned on the surface of this first substrate.
8. liquid crystal display as claimed in claim 7, also comprise the second biaxial compensation film, between this liquid crystal layer and this second substrate, wherein this second biaxial compensation film comprises the 2nd C-plate compensate film and is positioned on the 2nd C-plate compensate film to form a plurality of second nanostructureds of the 2nd A-plate compensate film.
9. liquid crystal display as claimed in claim 8, wherein the live width of each the second nanostructured is less than 200 nanometers, and the cycle of each the second nanostructured is less than 250 nanometers.
10. liquid crystal display as claimed in claim 8, also comprise both alignment layers, between this first substrate and this liquid crystal layer.
11. liquid crystal display as claimed in claim 7, wherein this first substrate and this second substrate one of them be active elements array substrates, and another is colorful filter array substrate.
12. a liquid crystal display comprises:
Display panels, it comprises the liquid crystal layer between first substrate, second substrate and this first substrate and this second substrate; And
The first biaxial compensation film, between this liquid crystal layer and this first substrate, wherein this first biaxial compensation film comprises a C-plate compensate film and is positioned on a C-plate compensate film to form a plurality of first nanostructureds of an A-plate compensate film, described the first nanostructured is strip structure, the live width of each the first nanostructured is less than 200 nanometers, and the cycle of each the first nanostructured is less than 250 nanometers, the first nanostructured of a wherein said A-plate compensate film contacts with a described C-plate compensate film, and the material of the first nanostructured of a described A-plate compensate film is identical with the material of a described C-plate compensate film.
13. liquid crystal display as claimed in claim 12, wherein the live width of each the first nanostructured is less than 100 nanometers, and the cycle of each the first nanostructured is less than 150 nanometers.
14. liquid crystal display as claimed in claim 12, also comprise
The first polaroid, be positioned on the surface of this first substrate; And
The second polaroid, be positioned on the surface of this second substrate.
15. liquid crystal display as claimed in claim 12, also comprise the second biaxial compensation film, between this liquid crystal layer and this second substrate, wherein this second biaxial compensation film comprises the 2nd C-plate compensate film and is positioned on the 2nd C-plate compensate film to form a plurality of second nanostructureds of the 2nd A-plate compensate film.
16. liquid crystal display as claimed in claim 15, wherein the live width of each the second nanostructured is less than 200 nanometers, and the cycle of each the second nanostructured is less than 250 nanometers.
17. liquid crystal display as claimed in claim 15, wherein the live width of each the second nanostructured is less than 100 nanometers, and the cycle of each the second nanostructured is less than 150 nanometers.
18. liquid crystal display as claimed in claim 12, also comprise both alignment layers, between this liquid crystal layer and this second substrate.
19. liquid crystal display as claimed in claim 12 also comprises:
Both alignment layers, between this liquid crystal layer and this second substrate; And
Compensate film, between this both alignment layers and this second substrate.
20. a biaxial compensation film comprises:
C-plate compensate film; And
A plurality of nanostructureds, be positioned on this C-plate compensate film to form A-plate compensate film, described nanostructured is strip structure, the live width of each nanostructured is less than 200 nanometers, and the cycle of each nanostructured is less than 250 nanometers, the nanostructured of wherein said A-plate compensate film contacts with described C-plate compensate film, and the material of the nanostructured of described A-plate compensate film is identical with the material of described C-plate compensate film.
21. biaxial compensation film as claimed in claim 20, wherein the live width of each nanostructured is less than 100 nanometers, and the cycle of each nanostructured is less than 150 nanometers.
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| CN200910174752.9A CN102023413B (en) | 2009-09-17 | 2009-09-17 | Liquid crystal display (LCD) and double axis compensation membrane |
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| CN200910174752.9A CN102023413B (en) | 2009-09-17 | 2009-09-17 | Liquid crystal display (LCD) and double axis compensation membrane |
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| CN102023413B true CN102023413B (en) | 2014-01-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1661420A (en) * | 2003-12-11 | 2005-08-31 | Jds尤尼弗思公司 | Trim retarders incorporating negative birefringence |
| CN101258187A (en) * | 2005-09-13 | 2008-09-03 | Lg化学株式会社 | Negative C-type compensation film and method of preparing the same |
| CN101809473A (en) * | 2007-09-28 | 2010-08-18 | 大日本印刷株式会社 | Phase difference control member, liquid crystal display, phase difference layer forming liquid crystal material composition |
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| US20070139771A1 (en) * | 2005-12-15 | 2007-06-21 | Jian Wang | Optical retarders and methods of making the same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1661420A (en) * | 2003-12-11 | 2005-08-31 | Jds尤尼弗思公司 | Trim retarders incorporating negative birefringence |
| CN101258187A (en) * | 2005-09-13 | 2008-09-03 | Lg化学株式会社 | Negative C-type compensation film and method of preparing the same |
| CN101809473A (en) * | 2007-09-28 | 2010-08-18 | 大日本印刷株式会社 | Phase difference control member, liquid crystal display, phase difference layer forming liquid crystal material composition |
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