CN201622416U - Polaroid used as film for wide-viewing-angle TFT semipermeable liquid crystal display - Google Patents
Polaroid used as film for wide-viewing-angle TFT semipermeable liquid crystal display Download PDFInfo
- Publication number
- CN201622416U CN201622416U CN2009202617034U CN200920261703U CN201622416U CN 201622416 U CN201622416 U CN 201622416U CN 2009202617034 U CN2009202617034 U CN 2009202617034U CN 200920261703 U CN200920261703 U CN 200920261703U CN 201622416 U CN201622416 U CN 201622416U
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- Prior art keywords
- rete
- phasic difference
- film
- compounded
- film layer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 6
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 25
- 230000000007 visual effect Effects 0.000 claims description 20
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000001070 adhesive effect Effects 0.000 claims description 14
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000010408 film Substances 0.000 description 46
- 239000004372 Polyvinyl alcohol Substances 0.000 description 19
- 229920002451 polyvinyl alcohol Polymers 0.000 description 19
- 150000001875 compounds Chemical class 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 6
- 239000010409 thin film Substances 0.000 description 6
- 239000004821 Contact adhesive Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- BAZVSMNPJJMILC-UHFFFAOYSA-N triadimenol Chemical compound C1=NC=NN1C(C(O)C(C)(C)C)OC1=CC=C(Cl)C=C1 BAZVSMNPJJMILC-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 1
- -1 compound compound Chemical class 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
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- Polarising Elements (AREA)
Abstract
The utility model discloses a polaroid used as a film for a wide-viewing-angle TFT semipermeable liquid crystal display. The polaroid comprises a peeling film layer, a first phase difference film layer R1, a second phase difference film layer R2, a polarizing film layer and a protection film layer which are overlapped from top to bottom. The peeling film layer is compounded on the upper surface of the first phase difference film layer R1, the first phase difference film layer R1 is compounded on the upper surface of the second phase difference film layer R2, the second phase difference film layer R2 is compounded on the upper surface of the polarizing film layer, and the protection film layer is compounded on the lower surface of the polarizing film. When the function of the polaroid of the utility model needs to be realized, only an absorption shaft (A) of the polarizing film layer and a slow shaft (B) of the second phase difference film layer R2 need to form an angel theta r 2 between 65 degrees and 85 degrees, at the same time, the absorption shaft (A) of the polarizing film layer and a slow shaft (C) of the first phase difference film layer R1 form an angle theta r 1 between 5 degrees and 25 degrees, in addition, the first phase difference film layer R1 is compounded on the upper surface of the second phase difference film layer R2, and the function can be realized.
Description
Technical field
The utility model relates to a kind of polaroid, relates in particular to a kind of thin film transistor (TFT) (TFT) semi-transmission type LCD polaroid of doing egative film with wide visual angle.
Background technology
Common thin film transistor (TFT) (TFT) type LCD polaroid is a kind of optical thin film with polarized light function that is composited with the layer high molecule material, is mainly used in field of display such as mobile phone screen, computer monitor, LCD TV.Mainly there is following shortcoming in the thin film transistor (TFT) of ordinary skill (TFT) type LCD with its function of polaroid: the visual angle is narrower when using common thin film transistor (TFT) (TFT) type LCD with polaroid, the inconvenience when client uses.
The utility model content
The technical problems to be solved in the utility model is: overcome existing thin film transistor (TFT) (TFT) type LCD with polaroid visual angle narrower problem, provide a kind of egative film of doing with wide visual angle TFT semi-transmission type LCD polaroid.
In order to solve the problems of the technologies described above; the utility model proposes following technical scheme: a kind of egative film of doing is with wide visual angle TFT semi-transmission type LCD polaroid; what it comprised from the top down stack peels off rete, the first phasic difference rete R1, the second phasic difference rete R2, polarisation rete, protective film; peel off rete and be compounded in the first phasic difference rete R1 upper surface; the first phasic difference rete R1 is compounded in the upper surface of the second phasic difference rete R2 layer; the second phasic difference rete R2 is compounded in polarisation rete upper surface, and protective film is compounded in the lower surface of polarisation rete.
Preferably, the phasic difference film NR film that the described first phasic difference rete R1 adopts liquid crystal material to make, the second phasic difference rete R2 adopts the phasic difference film of unformed polyolefin material making and has the relation of nx＞ny=nz, phase difference value Re1 is 125 to 155nm in the face of the first phasic difference rete R1, and phase difference value Re2 is 240 to 275nm in the face of the second phasic difference rete R2; Nx refers to the direction of refractive index in the largest face is provided is refractive index in the slow-axis direction, and it is refractive index in the quick shaft direction that ny refers in same plane direction perpendicular to slow axis, and nz refers to the refractive index of thickness direction; Phase difference value Re refers under 23 ℃ in the face, use wavelength to be phase difference value in the face of the film (layer) of the light measurement of 590nm, Re can determine from formula Re=(nx-ny) * d, here nx and ny represent the refractive index of the film (layer) of slow-axis direction and quick shaft direction under the wavelength of 590nm, the thickness of d (nm) expression film (layer) respectively.
Preferably, the slow axis (B) of absorption axes of described polarisation rete (A) and the described second phasic difference rete R2 forms 65 ° to 85 ° angle θ r2, and the slow axis (C) of absorption axes of described polarisation rete (A) and the described first phasic difference rete R1 forms 5 ° to 25 ° angle θ r1.
Preferably, this peels off rete is compounded in the first phasic difference rete R1 by a pressure-sensitive adhesive layer upper surface.
Preferably, the first phasic difference rete R1 is compounded in the upper surface of the second phasic difference rete R2 by an adhesive phase.
Preferably, the second phasic difference rete R2 is compounded in the upper surface of this polarisation rete by an adhesive phase.
The utlity model has following useful technique effect: the utility model can solve the narrow visual angle shortcoming of above-mentioned general thin transistor (TFT) type LCD with polaroid after using the double compensation double layer material to be combined into product, can realize that display device obtains the wide visual angle of four direction when showing.
Description of drawings
Fig. 1 is that the utility model is done egative film is used polaroid with wide visual angle TFT semi-transmission type LCD schematic cross-section.
Fig. 2 is that the utility model is done egative film is used polaroid with wide visual angle TFT semi-transmission type LCD decomposing schematic representation.
Embodiment
The definition of term and symbol in the utility model instructions is hereinafter described.
(1) symbol " nx " refers to the refractive index in the direction (being slow-axis direction) that refractive index in the largest face is provided, and symbol " ny " refers in same plane perpendicular to the refractive index in the direction (being quick shaft direction) of slow axis.Symbol " nz " refers to the refractive index of thickness direction.And for example expression formula " nx=ny " not only refers to the situation that nx and ny equate fully, also comprises the situation that nx and ny equate substantially.In the utility model instructions, phrase " equal substantially " comprises in actual applications, in the scope that the whole polarization property to the polaroid that disposes the phasic difference film can not exert an influence, and the unequal situation of nx and ny.
(2) term " phase difference value Re in the face " refers under 23 ℃, uses wavelength to be phase difference value in the face of the film (layer) of the light measurement of 590nm.Re can determine from formula Re=(nx-ny) * d, and here nx and ny represent the refractive index of the film (layer) of slow-axis direction and quick shaft direction under the wavelength of 590nm, the thickness of d (nm) expression film (layer) respectively.
As shown in Figure 1; a kind of egative film of doing is with wide visual angle TFT semi-transmission type LCD polaroid, and what it comprised stack from the top down peels off rete 1, pressure-sensitive adhesive layer 2, the first phasic difference rete (R1) 3, first adhesive phase 4, the second phasic difference rete (R2) 5, second adhesive phase 6, polarisation rete 7, protective film 8.Above-mentioned each layer is combined with each other by compounding machine.
This peels off rete 1 is compounded in the first phasic difference rete (R1) 3 by pressure-sensitive adhesive layer 2 upper surface; the first phasic difference rete (R1) 3 is compounded in the upper surface of the second phasic difference rete (R2) 5 by first adhesive phase 4; the second phasic difference rete (R2) 5 is compounded in the upper surface of this polarisation rete 7 by second adhesive phase 6, and protective film 8 is compounded in the lower surface of polarisation rete 7.
The phasic difference film NR film that this first phasic difference rete (R1) 3 adopts liquid crystal material to make, the second phasic difference rete (R2) 5 adopts the phasic difference film of unformed polyolefin (amorphous polyolefin) resin material making and has the relation of nx＞ny=nz, and phase difference value Re1 is 125 to 155nm in the face of the first phasic difference rete (R1) 3, preferred 135 to 145nm, more preferably 138 arrive 140nm, phase difference value Re2 is 240 to 275nm in the face of the second phasic difference rete (R2) 5, preferred 250 to 265nm, more preferably 255 arrive 260nm.
As shown in Figure 2, the slow axis (C) of absorption axes of described polarisation rete 7 (A) and the described first phasic difference rete (R1) 3 forms 5 ° to 25 ° angle θ r1, first phasic difference rete (R1) 3 is by compound angle theta r1 for making that its slow axis (C) and 7 formation of polarisation rete are scheduled to, θ r1 rotates 5 ° to 25 ° with respect to the absorption axes (A) of polarisation rete 7 towards counter clockwise direction, preferred 10 ° to 20 °, more preferably 14 ° to 16 °.The slow axis (B) of absorption axes of described polarisation rete 7 (A) and the described second phasic difference rete (R2) 5 forms 65 ° to 85 ° angle θ r2, second phasic difference rete (R2) 5 is by compound angle theta r2 for making that its slow axis (B) and 7 formation of polarisation rete are scheduled to, θ r2 rotates 65 ° to 85 ° with respect to the absorption axes (A) of polarisation rete 7 towards counter clockwise direction, preferred 70 ° to 80 °, more preferably 74 ° to 76 °.
The thickness of pressure-sensitive adhesive layer 2, first adhesive phase 4, second adhesive phase 6 can suitably be set according to the purposes of expecting, bond strength etc.Specifically, the thickness of preferred pressure-sensitive adhesive layer be 1 μ m to 100 μ m, more preferably 5 μ m are to 50 μ m, most preferably 10 μ m are to 30 μ m.
Any suitable contact adhesive can be as the contact adhesive that forms pressure-sensitive adhesive layer 2, first adhesive phase 4, second adhesive phase 6.Its object lesson comprises solvent-borne type contact adhesive, nonaqueous emulsion type contact adhesive, aqueous pressure sensitive adhesive and hot melt pressure sensitive adhesive.The preferred use contained the solvent-borne type contact adhesive of acrylate copolymer as base polymer, because it can show for the suitable pressure-sensitive adhesion performance (wettability, cohesiveness and cohesive) of light polarizing film and phasic difference film and excellent optical clarity, against weather and thermotolerance is provided.
This polarisation rete 7 comprises three layers, and promptly the middle layer is that polyvinyl alcohol (PVA) (PVA) film, both sides respectively are Triafol T (TAC) film.
These polarisation rete 7 production runes are as follows: the aqueous solution that 1, polyvinyl alcohol (PVA) (PVA) film is immersed iodine is to dye and this film to be stretched to 3 to 7 times of original length.Aqueous solution can contain boric acid, zinc sulfate, zinc chloride etc. as required, and perhaps the polyvinyl alcohol film can immerse in the aqueous solution of potassium iodide etc.And, the polyvinyl alcohol film can be soaked in water and cleans as required.2, water cleans the polyvinyl alcohol film and not only can remove the dirt or the flush away detackifier on striping surface, can also expand to prevent the non-uniform phenomenon of uneven dyeing for example etc. by making the polyvinyl alcohol film.Can be after the process that film is dyeed with iodine, among or before this film is stretched.Stretching can be carried out in the aqueous solution of boric acid or potassium iodide or in the water-bath.3, stretch polyvinyl alcohol (PVA) (PVA) film finish the back is very thin, is protection polyvinyl alcohol (PVA) (PVA) film, thus in polyvinyl alcohol (PVA) (PVA) film both sides each compound one deck Triafol T (TAC) film formation trilamellar membrane structure, polarisation rete 7.
The effect of this protective film 8 is: when reality is used this polaroid, and for preventing the polaroid various pollutions in surface, usually will be at polaroid surface recombination last layer diaphragm.Can be used as diaphragm 8 as any suitable diaphragm of polaroid.Usually use tygon (PE) film, polyester (PET) film as this film kind.
It is as follows with the method for polaroid with wide visual angle TFT semi-transmission type LCD that production the utility model is made egative film: the utility model polaroid can carry out compound production by above-mentioned pressure-sensitive adhesive layer 2, first adhesive phase 4,6 pairs of above-mentioned each layers of second adhesive phase.Can adopt any suitable complex method, as long as the angle θ r2 of the optic axis of the angle θ r1 that each layer forms at the optic axis of the compound tense first phasic difference rete (R1) 3, the second phasic difference rete (R2) 5 formation is in the afore mentioned rules scope.Concrete complex method is: the first step, carry out the second phasic difference rete (R2) 5 and the polarisation rete 7 of being furnished with optic axis angle θ r2 compound earlier; In second step, carry out the second phasic difference rete (R2), 5 upper surfaces of the compound product of the first phasic difference rete (R1) 3 of being furnished with optic axis angle θ r1 and the first step compound again; In the 3rd step, carry out the first phasic difference rete (R1), 3 upper surfaces of peeling off compound product of the rete 1 and second step compound; The 4th step, protective film 8 and the 3rd go on foot polarisation rete 7 lower surfaces of the product after compound compound this polaroid finished product.
The utlity model has following useful technique effect: the utility model uses the double compensation double layer material to be combined into the narrow visual angle shortcoming that can solve above-mentioned general thin transistor (TFT) type Polarizer Used for Liquid Crystal Display behind the product, can realize that display device obtains the wide visual angle of four direction when showing.
Claims (6)
1. make egative film with wide visual angle TFT semi-transmission type LCD polaroid for one kind; it is characterized in that: what it comprised from the top down stack peels off rete, the first phasic difference rete R1, the second phasic difference rete R2, polarisation rete, protective film; peel off rete and be compounded in the first phasic difference rete R1 upper surface; the first phasic difference rete R1 is compounded in the upper surface of the second phasic difference rete R2 layer; the second phasic difference rete R2 is compounded in polarisation rete upper surface, and protective film is compounded in the lower surface of polarisation rete.
2. the egative film of doing according to claim 1 is with wide visual angle TFT semi-transmission type LCD polaroid, it is characterized in that: the phasic difference film NR film that the described first phasic difference rete R1 adopts liquid crystal material to make, the second phasic difference rete R2 adopts the phasic difference film of unformed polyolefin material making and has the relation of nx＞ny=nz, phase differential Re1 is 125 to 155nm in the face of the first phasic difference rete R1, and phase difference value Re2 is 240 to 275nm in the face of the second phasic difference rete R2; Nx refers to the direction of refractive index in the largest face is provided is refractive index in the slow-axis direction, and it is refractive index in the quick shaft direction that ny refers in same plane direction perpendicular to slow axis, and nz refers to the refractive index of thickness direction; Phase difference value Re refers under 23 ℃ in the face, use wavelength to be phase difference value in the face of the rete of the light measurement of 590nm, Re can determine from formula Re=(nx-ny) * d, here nx and ny represent the refractive index of the rete of slow-axis direction and quick shaft direction under the wavelength of 590nm respectively, d represents the thickness of rete, and the unit of d is nm.
3. the egative film of doing according to claim 1 is with wide visual angle TFT semi-transmission type LCD polaroid, it is characterized in that: the slow axis B of the absorption axes A of described polarisation rete and the described second phasic difference rete R2 forms 65 ° to 85 ° angle θ r2, and the slow axis C of the absorption axes A of described polarisation rete and the described first phasic difference rete R1 forms 5 ° to 25 ° angle θ r1.
According to claim 1, the 2 or 3 described egative films of doing with wide visual angle TFT semi-transmission type LCD polaroid, it is characterized in that: this peels off rete is compounded in the first phasic difference rete R1 by a pressure-sensitive adhesive layer upper surface.
According to claim 1, the 2 or 3 described egative films of doing with wide visual angle TFT semi-transmission type LCD polaroid, it is characterized in that: the first phasic difference rete R1 is compounded in the upper surface of the second phasic difference rete R2 by an adhesive phase.
According to claim 1, the 2 or 3 described egative films of doing with wide visual angle TFT semi-transmission type LCD polaroid, it is characterized in that: the second phasic difference rete R2 is compounded in the upper surface of this polarisation rete by an adhesive phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202617034U CN201622416U (en) | 2009-12-16 | 2009-12-16 | Polaroid used as film for wide-viewing-angle TFT semipermeable liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202617034U CN201622416U (en) | 2009-12-16 | 2009-12-16 | Polaroid used as film for wide-viewing-angle TFT semipermeable liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201622416U true CN201622416U (en) | 2010-11-03 |
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ID=43025875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202617034U Expired - Lifetime CN201622416U (en) | 2009-12-16 | 2009-12-16 | Polaroid used as film for wide-viewing-angle TFT semipermeable liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201622416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308603A (en) * | 2020-04-09 | 2020-06-19 | 四川龙华光电薄膜股份有限公司 | Oblique optical axis phase difference film |
-
2009
- 2009-12-16 CN CN2009202617034U patent/CN201622416U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308603A (en) * | 2020-04-09 | 2020-06-19 | 四川龙华光电薄膜股份有限公司 | Oblique optical axis phase difference film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN SUNNYPOL OPTOELECTRONICE TECHNOLOGY CO., Free format text: FORMER NAME: SHENZHEN SUNNYPOL OPTOELECTRONICS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518105 Guangdong city of Shenzhen province Baoan District Songgang Hongxing Street Hsinkang joint industrial zone 4 Patentee after: Shenzhen Sunnypol Optoelectronics Co., Ltd. Address before: 518105 Guangdong city of Shenzhen province Baoan District Songgang Hongxing Street Hsinkang joint industrial zone 4 Patentee before: Shenzhen Sunnypol Optoelectronics Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000, Guangdong, Guangming District, Gongming province Shenzhen Office Village community Second Industrial Zone, Fu Fu Road No. 5, No. 1-3, 6-9 Patentee after: Shenzhen Sunnypol Optoelectronics Co., Ltd. Address before: 518105 Guangdong city of Shenzhen province Baoan District Songgang Hongxing Street Hsinkang joint industrial zone 4 Patentee before: Shenzhen Sunnypol Optoelectronics Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |