CN201654398U - Polarizer used for WVA colour STN type liquid crystal display - Google Patents
Polarizer used for WVA colour STN type liquid crystal display Download PDFInfo
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- CN201654398U CN201654398U CN2010201510846U CN201020151084U CN201654398U CN 201654398 U CN201654398 U CN 201654398U CN 2010201510846 U CN2010201510846 U CN 2010201510846U CN 201020151084 U CN201020151084 U CN 201020151084U CN 201654398 U CN201654398 U CN 201654398U
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- polaroid
- rete
- film layer
- phasic difference
- film
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Abstract
The utility model discloses a polarizer used for a WVA (wide visual angle) colour STN type liquid crystal display, which includes an upper polarizer and a lower polarizer. The upper polarizer and the lower polarizer have the same layered structures, each of which includes a stripping film layer, a phase difference film layer, a polarizing film layer and a protective film layer, wherein the four layers are compounded together from top to bottom through a PSA (pressure-sensitive adhesive) or an adhesive. The stripping film layer is compounded on the upper surface of the phase difference film layer, the phase difference film layer is compounded on the upper surface of the polarizing film layer, and the protective film layer is compounded on the lower surface of the polarizing film layer. When the polarizer of the utility model is about to play the function, all that is needed is to form an angle theta r 1 ranging from 110 degrees to 150 degrees between an absorption shaft (A) of the upper polarizing film layer and a slow axis nx direction (B) of the phase difference film layer of a Z plate made of novel material, and to form an angle theta r 2 ranging from 20 degrees to 50 degrees between absorption shaft (A) of the lower polarizing film layer and the slow axis nx direction (B) of the phase difference film layer of the Z plate made of novel material. A liquid crystal display is arranged between the upper polarizer and the lower polarizer.
Description
Technical field
The utility model relates to the LCD polaroid, and the colorful ultra-twist that relates in particular to a pair of wide visual angle is to row (CSTN) type LCD polaroid.
Background technology
STN is Super Twisted Nematic, and supertwist is to row.Colorful ultra-twist is a kind of optical thin film with polarized light function that is composited with the layer high molecule material to row (CSTN, Color Super Twisted Nematic) type LCD polaroid, is mainly used in field of display such as mobile phone screen.Mainly there is following shortcoming to row (CSTN) type LCD in common colorful ultra-twist with its function of polaroid: the visual angle was narrower when common colorful ultra-twist showed with polaroid to row (CSTN) type LCD, and the client is inconvenient in use.
The utility model content
The technical problems to be solved in the utility model is: overcome existing colorful ultra-twist to row (CSTN) type LCD narrower problem of polaroid display view angle, a pair of wide visual angle colored STN type LCD polaroid is provided, and this sheet uses Z plate phasic difference film compensation and combination of angles to widen the polaroid visual angle.
In order to solve the problems of the technologies described above, the utility model proposes following technical scheme: a pair of wide visual angle colored STN type LCD polaroid comprises polaroid and following polaroid.Last polaroid is identical with the hierarchy of following polaroid, comprises peeling off rete, phasic difference rete, polarisation rete, protective film, and these four layers are combined with each other by pressure sensitive adhesive from the top down.Peel off the upper surface that rete is compounded in the phasic difference rete, the phasic difference rete is compounded in polarisation rete upper surface, and protective film is compounded in the lower surface of polarisation rete.
Preferably, the described phasic difference rete of going up polaroid and following polaroid all has the relation of nx＞nz＞ny, and the interior phase differential Re of phasic difference rete face that goes up the phasic difference rete of polaroid and following polaroid 415 arrives 435nm; 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 absorption axes (A) of the described upward polarisation rete of polaroid and the slow axis nx direction (B) of new material Z plate phasic difference rete form 110 ° to 150 ° angle θ r1, with the absorption axes (A) of the polarisation rete of polaroid and the slow axis nx direction (B) of new material Z plate phasic difference rete form 20 ° to 50 ° angle θ r2 at present.
The utlity model has following beneficial effect: the utility model uses new material Z plate phasic difference film compensation and combination of angles and the supporting use of sheet up and down, to widen the polaroid visual angle, can realize that display device reaches the effect at wide visual angle when showing, promptly all can see demonstration clearly from different directions.
Description of drawings
Fig. 1 is the polaroid schematic cross-section of going up of the present utility model.
Fig. 2 is a pair of wide visual angle of a utility model colored STN type LCD polaroid schematic cross-section
Fig. 3 is a pair of wide visual angle of a utility model colored STN type LCD layering synoptic diagram.
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; the utility model proposes a pair of wide visual angle colored STN type LCD polaroid; comprise that one is gone up polaroid 100 and a following polaroid 200, this on polaroid 100 comprise superpose from the top down peel off rete 1, pressure-sensitive adhesive layer 2, phasic difference rete 3, adhesive phase 4, polarisation rete 5, protective film 6.What this time polaroid 200 comprised from the top down stack peels off rete 7, pressure-sensitive adhesive layer 8, phasic difference rete 9, adhesive phase 10, polarisation rete 11, protective film 12.Above-mentioned each layer is combined with each other by compounding machine.
Be a liquid crystal indicator 300 between last polaroid 100 and the following polaroid 200.
This is peeled off rete 1 and is compounded in the upper surface of phasic difference rete 3 by pressure-sensitive adhesive layer 2, and phasic difference rete 3 is compounded in the upper surface of this polarisation rete 5 by adhesive phase 4, and protective film 6 is compounded in the lower surface of polarisation rete 5.
This is peeled off rete 7 and is compounded in the upper surface of phasic difference rete 9 by pressure-sensitive adhesive layer 8, and phasic difference rete 9 is compounded in the upper surface of this polarisation rete 11 by adhesive phase 10, and protective film 12 is compounded in the lower surface of polarisation rete 11.
Upward the phasic difference rete 3 of polaroid 100 and the phasic difference rete 9 of following polaroid 200 all have the relation of nx＞nz＞ny, and phase differential Re is 415 to 435nm in its face, and preferred 420 to 430nm, more preferably 424 arrive 426nm.
Layering synoptic diagram as shown in Figure 3.The absorption axes (A) of the described upward polarisation rete 5 of polaroid 100 and the slow axis nx direction (B) of phasic difference rete 3 form 110 ° to 150 ° angle θ r1, the phasic difference rete 3 that should go up polaroid 100 by compound for making its slow axis nx direction (B) and polarisation rete 5 form predetermined angle theta r1, θ r1 with respect to the absorption axes (A) of polarisation rete 5 towards counterclockwise 110 ° to 150 ° of the slow axis nx direction (B) of the absorption axes (A) of the polarisation rete 5 of last polaroid 100 and phasic difference rete 3 formation.
Layering synoptic diagram as shown in Figure 3.The absorption axes (A) of the described polarisation rete 11 of polaroid 200 down and the slow axis nx direction (B) of phasic difference rete 9 form 20 ° to 50 ° angle θ r2, for making its slow axis nx direction (B) and polarisation rete 11 form predetermined angle theta r2, θ r2 forms 20 ° to 50 ° to the slow axis nx direction (B) of the absorption axes (A) of the polarisation rete 11 of last polaroid 100 and phasic difference rete 9 with respect to the absorption axes (A) of polarisation rete 11 towards counter clockwise direction to the phasic difference rete 9 of this time polaroid 200 by compound.
The thickness of pressure-sensitive adhesive layer 2, adhesive phase 4, pressure-sensitive adhesive layer 8, adhesive phase 10 can suitably be set according to the purposes of expecting, bond strength etc.Specifically, preferred thickness 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 and adhesive phase 4, pressure-sensitive adhesive layer 8, adhesive phase 10.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.
Should go up the polarisation rete 5 of polaroid 100 and the polarisation rete 11 of following polaroid 200 and comprise three layers, promptly the middle layer is that polyvinyl alcohol (PVA) (PVA) film, both sides respectively are Triafol T (TAC) film.
This polarisation rete 5 and polarisation rete 11 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, the polarisation rete.
Upward the effect of the protective film 12 of the protective film 6 of polaroid 100 and following polaroid 200 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 protective film 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 the last polaroid 100 of polaroid to produce wide visual angle of the present utility model colored STN type LCD: the utility model polaroid can carry out compound production by above-mentioned pressure-sensitive adhesive layer 2,4 pairs of above-mentioned each layers of adhesive phase.Can adopt any suitable complex method, as long as the angle θ r that each layer forms at the optic axis of compound tense phasic difference rete 3 is in the afore mentioned rules scope.Concrete complex method is: the first step, carry out phasic difference rete 3 and the polarisation rete 5 of being furnished with optic axis angle θ r compound earlier; In second step, carry out phasic difference rete 3 upper surfaces of peeling off compound product of the rete 1 and second step compound; The 3rd step, protective film 6 and second go on foot polarisation rete 5 lower surfaces of the product after compound compound this polaroid finished product.
The method of polaroid 200 is identical with polaroid 100 methods in the above-mentioned production under producing.
The utlity model has following beneficial effect: the utility model uses new material Z plate phasic difference film compensation and angle combination and fluctuating plate to support the use, to widen the polaroid visual angle, can realize that display device reaches the effect at wide visual angle when showing, namely all can see demonstration clearly from different directions.
Claims (3)
1. a pair of wide visual angle colored STN type LCD polaroid; comprise that one is gone up polaroid and a following polaroid; it is characterized in that: it is identical with the hierarchy of following polaroid to go up polaroid; comprise and peel off rete, phasic difference rete, polarisation rete, protective film; these four layers are combined with each other by pressure sensitive adhesive or bonding agent from the top down; promptly peel off the upper surface that rete is compounded in the phasic difference rete; the phasic difference rete is compounded in polarisation rete upper surface, and protective film is compounded in the lower surface of polarisation rete.
2. a pair of wide visual angle according to claim 1 colored STN type LCD polaroid, it is characterized in that: the described phasic difference rete of going up polaroid and following polaroid all has the relation of nx＞nz＞ny, and the interior phase differential Re of phasic difference rete face that goes up the phasic difference rete of polaroid and following polaroid 415 arrives 435nm; 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.
3. a pair of wide visual angle according to claim 2 colored STN type LCD polaroid, it is characterized in that: the absorption axes (A) of the described upward polarisation rete of polaroid and the slow axis nx direction (C) of new material Z plate phasic difference rete form 110 ° to 150 ° angle θ r1, at present the slow axis nx direction (B) of the absorption axes (A) of the polarisation rete of polaroid and new material Z plate phasic difference rete forms 20 ° to 50 ° angle θ r2 together, is liquid crystal indicator between last polaroid and the following polaroid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201510846U CN201654398U (en) | 2010-03-31 | 2010-03-31 | Polarizer used for WVA colour STN type liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201510846U CN201654398U (en) | 2010-03-31 | 2010-03-31 | Polarizer used for WVA colour STN type liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201654398U true CN201654398U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201510846U Expired - Lifetime CN201654398U (en) | 2010-03-31 | 2010-03-31 | Polarizer used for WVA colour STN type liquid crystal display |
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| Country | Link |
|---|---|
| CN (1) | CN201654398U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929040A (en) * | 2012-11-23 | 2013-02-13 | 亚世光电股份有限公司 | Blue image FSTN (Film Super Twisted Nematic) liquid crystal display and manufacturing process thereof |
| CN106443863A (en) * | 2016-12-05 | 2017-02-22 | 佛山纬达光电材料有限公司 | Z-axis compensation wide view angle polaroid and preparation method thereof |
-
2010
- 2010-03-31 CN CN2010201510846U patent/CN201654398U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929040A (en) * | 2012-11-23 | 2013-02-13 | 亚世光电股份有限公司 | Blue image FSTN (Film Super Twisted Nematic) liquid crystal display and manufacturing process thereof |
| CN106443863A (en) * | 2016-12-05 | 2017-02-22 | 佛山纬达光电材料有限公司 | Z-axis compensation wide view angle polaroid and preparation method thereof |
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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: 20101124 |