CN108287384A - A kind of liquid crystal display panel and its LCD TV - Google Patents
A kind of liquid crystal display panel and its LCD TV Download PDFInfo
- Publication number
- CN108287384A CN108287384A CN201810133214.4A CN201810133214A CN108287384A CN 108287384 A CN108287384 A CN 108287384A CN 201810133214 A CN201810133214 A CN 201810133214A CN 108287384 A CN108287384 A CN 108287384A
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- Prior art keywords
- film
- liquid crystal
- crystal display
- display panel
- birefringence
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3083—Birefringent or phase retarding elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of liquid crystal display panel and its LCD TVs, including upper polaroid, wherein, the upper polaroid includes the TAC film set gradually, PVA film and the birefringence depolarization film for linearly polarized light to be converted into natural light, the linearly polarized light that traditional liquid crystal display screen is emitted is converted into the equally distributed natural light of all directions by using birefringence depolarization film, improves comfort level when human eye viewing TV.
Description
Technical field
The present invention relates to field of liquid crystal display, more specifically, it relates to a kind of liquid crystal display panel and its LCD TV.
Background technology
Currently, flat panel TV mostly uses greatly LCD screen, and the determinant of LCD screen performance is LCD screen
The quality of panel, liquid crystal display panel directly influences the viewing effect of picture.
The essential structure of available liquid crystal panel is upper and lower two layers of electro-conductive glass, and liquid crystal layer is added in centre, divides in layer glass
It Tie Fu not the mutually perpendicular polaroid in polarization direction.And it is polarised light to be projected from liquid crystal display panel upper surface, user watches for a long time
To be linearly polarized light, i.e., only there are one direction of vibration light.And human eye watches linear polarization screen for a long time, vision is easy fatigue, blinks
Eye frequency increases, and leads to visual impairment.In today that display equipment is popularized, all gives and use especially on TV, notebook and mobile phone
Very big puzzlement is brought at family, influences Vision Health.
Therefore, the prior art could be improved and develop.
Invention content
The object of the present invention is to provide a kind of liquid crystal display panel and its LCD TVs, will be traditional using birefringence depolarization film
The linearly polarized light of liquid crystal display outgoing is converted into the equally distributed natural light of all directions, relaxing when improving human eye viewing TV
Appropriateness.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of liquid crystal display panel, including upper polaroid, wherein the upper polaroid include the TAC film set gradually, PVA film and
Birefringence depolarization film for linearly polarized light to be converted into natural light.
Further, the birefringence depolarization film is prepared by glancing angle deposition technique.
Further, the birefringence depolarization film is prepared by physical gas-phase deposition.
Further, angle of deposit is 60 °, 65 °, 70 ° or 80 ° when preparing the birefringence depolarization film.
Further, the material of the birefringence depolarization film is、Or birefringece crystal.
Further, the PVA film with dichroic organic dyestuff by being dyed.
Further, the PVA film is stretched under conditions of certain temperature and humidity so that PVA film has polarization
Performance.
Further, the TAC film has been orderly arranged outside each pressure sensing adhesive layer and release film layer, and the birefringence is depolarized
It shakes and is provided with protective film on the outside of film.
Further, including set gradually down polaroid, lower TFT electro-conductive glass, liquid crystal layer, colored filter, upper ITO
The TAC film of electro-conductive glass and the upper polaroid, the upper polaroid is arranged towards upper ITO electro-conductive glass.
A kind of LCD TV, including shell and the backlight module that is arranged in shell, wherein further include any one of as above
The liquid crystal display panel.
In conclusion the present invention is converted using the linearly polarized light that traditional liquid crystal display screen is emitted by birefringence depolarization film
At the equally distributed natural light of all directions, comfort level when human eye viewing TV is improved.
Description of the drawings
Fig. 1 is the schematic diagram of a layer structure of liquid crystal display panel in the present embodiment.
Fig. 2 is the schematic diagram of a layer structure of upper polaroid in the present embodiment.
In figure：1, upper polaroid；11, birefringence depolarization film；12, PVA film；13, TAC film；14, protective film；15, feel
Moulding layer；16, release film layer；2, upper ITO electro-conductive glass；3, colored filter；4, liquid crystal layer；5, lower TFT electro-conductive glass；6, under
Polaroid；7, backlight module.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
Embodiment：A kind of liquid crystal display panel, as shown in Figures 1 and 2, including the down polaroid 6 that sets gradually, lower TFT conductive
Glass 5, liquid crystal layer 4, colored filter 3, upper ITO electro-conductive glass 2 and upper polaroid 1.The upper polaroid 1 includes setting successively
TAC film 13, PVA film 12 and the birefringence depolarization film 11 for linearly polarized light to be converted into natural light set, it is described on
The TAC film 13 of polaroid 1 is arranged towards upper ITO electro-conductive glass 2.
Wherein, ITO is N-type oxide semiconductor, that is, aoxidizes cigarette tin, and upper ITO electro-conductive glass 2 is cigarette tin oxide semiconductor
Transparent conductive film, it is transparent and have good electric conductivity.TFT, that is, thin film transistor (TFT), using the display of lower TFT electro-conductive glass 5
Compared to traditional monitor have many advantages, such as high-responsivity, high brightness, high comparison to.
The TAC（Triafol T）Film 13 has been orderly arranged outside each pressure sensing adhesive layer 15 and release film layer 16, institute
The outside for stating birefringence depolarization film 11 is provided with protective film 14.Wherein, protective film 14 is One-sided coatings EVA layer（Ethylene vinegar
Sour ethylene copolymer）PEC（Polyethylene）Film has low viscosity, plays the role of protecting birefringence depolarization film 11.It is release
Film is the PET of One-sided coatings silicon coating（Terephthalate vinegar）Film, it is main to play a part of to protect pressure sensing adhesive layer 15.
Since light makes people not feel like oneself when watching TV by concentrations, it is therefore desirable to be carried out to upper polaroid 1
Resist dizzy processing, specially：It willEtc. the organic particles such as inorganic fine particles or acrylic resin be distributed to adhesive
In, then adhesive is uniformly coated on TAC film 13 or release film.Above-mentioned adhesive is pressure sensing adhesive layer 15 in the present embodiment,
It in other embodiments, can also individual a layer of adhesive.
Using PVA, that is, polyvinyl alcohol as base material, the PVA film 12 passes through with dichroic organic upper polaroid 1
Dyestuff is dyed, and such as azo dyes or polycyclic dyestuff, and is stretched under conditions of certain temperature and humidity so that
PVA film 12 has polarization property.When being stretched to PVA materials, can be specially by wet heating, wherein humiture specifically：
90 DEG C × 95%RH × 500HR or dry warm therapys, wherein humiture are specially：105℃×500HR.
Dry warm therapy, the i.e. dry type technology of dry process polaroid refer to PVA film 12 with certain temperature and humidity item
The manufacturing method thereof extended under the steam ambient of part, have can use breadth it is larger to PVA film 12 produced without
The advantages of as frequent film breakage.
Wet heating, i.e. the wet type production technology of wet process polaroid refer to PVA film 12 and are carried out in the liquid centainly matched
Dyeing, the manufacturing method thereof stretched.It is suitable for the making of larger-size TFTLCD products, and wherein basic width is 1330mm.
In other embodiments, PVA film 12 can also be dyed using iodine staining, is specially contaminated in polaroid
In color, drawing process, PVA film 12 is set to generate polarity polarized light property as two to medium using iodine and potassium iodide.Iodine staining
It, specifically can be by doing warm therapy when stretching, wherein humiture is specially：80 DEG C × 500HR or wet heating, wherein humiture are specific
For：60℃×90%RH×500HR.
Due to polarizing layer made of PVA film 12 is hygroscopic, fade and lose polarizing properties, in the outside of PVA film 12
Completely cut off moisture and air using one layer of TAC film 13, TAC film 13 has uniform optical property and the good transparency.
When applying voltage at TFT electro-conductive glass both ends, liquid crystal molecule rotation, due to liquid crystal birefringence effect, light changes
Become polarization direction, down polaroid in collocation, may be implemented each sub-pixel it is bright secretly.The light that backlight is incident on liquid-crystalline glasses is
Natural light, and self-heating just shear wave, i.e., there are two direction of vibration, i.e., along the light of direction of propagation vibration with perpendicular to the direction of propagation
Light.Since the characteristic of polaroid is only the light consistent with polarization direction to be allowed to pass through, the light sent out from backlight passes through lower polarisation
After piece, the polarised light consistent with down polaroid polarization direction passes through, by liquid crystal molecule optical activity,（It is with IPS liquid crystal display panels
Example）90 degree of torsions can occur for direction of vibration after polarised light enters the long axis of liquid crystal molecule so that enter the light of upper polaroid just
Consistent with upper polaroid polarization direction, light can pass through.
Originally when linearly polarized light is parallel to face vibration directly, O light had both been had in birefringece crystal or has had E light, i.e.,
Linearly polarized light become the natural light there are two direction of vibration, the direction of propagation of light is O light and E photosynthesis direction.Birefringence matchmaker
Matter has the characteristic that linearly polarized light is converted into natural light, i.e., depolarized property.
Linearly polarized light is with non-perpendicular to optical axis direction incidence, it may occur that birefringent phenomenon.Perpendicular to the component peace of optical axis
Row can form O light and E light in the component of optical axis.O just ordinary lights, i.e., still propagated by former direction in crystal, it then follows refraction is fixed
Rule.E light is extraordinary ray, does not follow the law of refraction.
Birefringence is that light beam is incident on anisotropic crystal, the phenomenon that being decomposed into two-beam and reflected along different directions.
When light is propagated in heterogeneous body, spread speed and refractive index value are different with direction of vibration and change, and refractive index value is more than
One；Respectively no and ne, i.e. O light have different refractive index, the difference n of the two to represent the ability of birefringece crystal from E light.
I.e. light wave incidence birefringece crystal when, in addition to particular orientation（Vertically with birefringece crystal optical axis direction）Other directions will
Birefringence occurs, resolves into that direction of vibration is orthogonal, spread speed is different, the two kinds of polarised lights of refractive index not etc..
The material of the birefringence depolarization film 11 is、Or birefringece crystal.
In the present embodiment, preferably（Titanium dioxide）Birefringence depolarization film 11 is manufactured, since material is
Film can be made thin, can accomplish the other thickness of grade, therefore pass throughThe birefringence depolarization film of material
11 replace the TAC film 13 in former upper polaroid 1, the thickness of liquid crystal display panel entirety not to increase, not only frivolous beautiful but also cost-effective.
The birefringence depolarization film 11 is prepared by glancing angle deposition technique, i.e. inclined substrate, controls angle of deposit
Preparation process.In the present embodiment, the birefringence depolarization film 11 is prepared using physical gas-phase deposition.
When preparing thin-film material using physical gas-phase deposition, by substrate tilt, incident air flow and substrate surface are controlled
The angle of normal, to obtain the film of anisotropic structure so that the birefringence that there are the film conventional films not have is special
Property.
Angle of deposit is 60 °, 65 °, 70 ° or 80 ° when preparing the birefringence depolarization film 11.
The angle of deposit of film is bigger, and birefringent characteristic is more apparent, i.e. birefringence value n becomes larger with angle of deposit and increased
Add, such as usesWhen material as birefringence depolarization film 11, in wavelength X=633nm, angle of deposit α=80 °, obtain
To maximum birefringence value n, specially n=0.036, this birefringence value higher than common block materials quartz and.Tool
Body angle of deposit is selected according to production requirement.
The present embodiment also provides a kind of LCD TV, including shell and the backlight module 7 that is arranged in shell, wherein
It further include liquid crystal display panel as described above；As detailed above.
In conclusion the present invention is turned using the linearly polarized light that traditional liquid crystal display screen is emitted by birefringence depolarization film 11
It changes the equally distributed natural light of all directions into, improves comfort level when human eye viewing TV；Birefringence depolarization film simultaneously
11 be attached to it is easy to operate in glass or upper polaroid 1, it is easy to produce, it is efficient.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of liquid crystal display panel, including upper polaroid, it is characterized in that：The upper polaroid includes the TAC film set gradually, PVA
Film and birefringence depolarization film for linearly polarized light to be converted into natural light.
2. liquid crystal display panel according to claim 1, it is characterized in that：The birefringence depolarization film passes through glancing angle deposition
It is prepared by technique.
3. liquid crystal display panel according to claim 2, it is characterized in that：The birefringence depolarization film is heavy by physical vapor
It is prepared by product technique.
4. liquid crystal display panel according to claim 3, it is characterized in that：Angle of deposit when preparing the birefringence depolarization film
It is 60 °, 65 °, 70 ° or 80 °.
5. liquid crystal display panel according to claim 1, it is characterized in that：The material of the birefringence depolarization film is、Or birefringece crystal.
6. liquid crystal display panel according to claim 1, it is characterized in that：The PVA film with dichroic by having engine dyeing
Material is dyed.
7. liquid crystal display panel according to claim 1, it is characterized in that：The PVA film is under conditions of certain temperature and humidity
It is stretched so that PVA film has polarization property.
8. liquid crystal display panel according to claim 1, it is characterized in that：The TAC film has been orderly arranged outside each pressure sensing adhesive layer
And release film layer, protective film is provided on the outside of the birefringence depolarization film.
9. liquid crystal display panel according to claim 1, it is characterized in that：Including set gradually down polaroid, lower TFT conductions glass
Glass, liquid crystal layer, colored filter, upper ITO electro-conductive glass and the upper polaroid, the TAC film of the upper polaroid is towards upper
ITO electro-conductive glass is arranged.
10. a kind of LCD TV, including shell and the backlight module that is arranged in shell, it is characterized in that：Further include such as right
It is required that 1-9 any one of them liquid crystal display panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133214.4A CN108287384A (en) | 2018-02-09 | 2018-02-09 | A kind of liquid crystal display panel and its LCD TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133214.4A CN108287384A (en) | 2018-02-09 | 2018-02-09 | A kind of liquid crystal display panel and its LCD TV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108287384A true CN108287384A (en) | 2018-07-17 |
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ID=62832681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810133214.4A Pending CN108287384A (en) | 2018-02-09 | 2018-02-09 | A kind of liquid crystal display panel and its LCD TV |
Country Status (1)
| Country | Link |
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| CN (1) | CN108287384A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471295A (en) * | 2018-12-17 | 2019-03-15 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and its manufacturing method |
| WO2022033237A1 (en) * | 2020-08-10 | 2022-02-17 | 京东方科技集团股份有限公司 | Display panel and display device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1134226A (en) * | 1996-02-27 | 1996-10-30 | 孙怀珠 | Natural health flour (or health flour product) for adult and its making method |
| CN101339321A (en) * | 2007-07-06 | 2009-01-07 | 深圳Tcl工业研究院有限公司 | LCD device |
| CN101401024A (en) * | 2006-03-09 | 2009-04-01 | 金泰克斯公司 | Vehicle rearview assembly including a high intensity display |
| CN103576371A (en) * | 2012-07-23 | 2014-02-12 | 天津富纳源创科技有限公司 | Liquid crystal panel |
| CN104238857A (en) * | 2014-09-17 | 2014-12-24 | 南昌欧菲光科技有限公司 | Touch display screen |
| CN104407410A (en) * | 2014-11-26 | 2015-03-11 | 上海华力微电子有限公司 | Double-refraction depolarization thin film |
| CN104407411A (en) * | 2012-06-29 | 2015-03-11 | 天马微电子股份有限公司 | Polarizer, liquid crystal display screen and liquid crystal display device |
| CN105093649A (en) * | 2015-08-14 | 2015-11-25 | 深圳市华星光电技术有限公司 | Blue light prevention polarizer and liquid crystal display panel |
| CN105388662A (en) * | 2015-12-25 | 2016-03-09 | 武汉华星光电技术有限公司 | Display panel and polaroid |
| CN105785665A (en) * | 2016-05-09 | 2016-07-20 | 深圳市华星光电技术有限公司 | Lcd display |
| CN106199812A (en) * | 2016-08-30 | 2016-12-07 | 苏州汇卓网络科技有限公司 | A kind of thinning functional polarizing sheet and its preparation method and application |
| CN107340561A (en) * | 2017-09-04 | 2017-11-10 | 深圳Tcl新技术有限公司 | Polarizer and LCDs |
-
2018
- 2018-02-09 CN CN201810133214.4A patent/CN108287384A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1134226A (en) * | 1996-02-27 | 1996-10-30 | 孙怀珠 | Natural health flour (or health flour product) for adult and its making method |
| CN101401024A (en) * | 2006-03-09 | 2009-04-01 | 金泰克斯公司 | Vehicle rearview assembly including a high intensity display |
| CN101339321A (en) * | 2007-07-06 | 2009-01-07 | 深圳Tcl工业研究院有限公司 | LCD device |
| CN104407411A (en) * | 2012-06-29 | 2015-03-11 | 天马微电子股份有限公司 | Polarizer, liquid crystal display screen and liquid crystal display device |
| CN103576371A (en) * | 2012-07-23 | 2014-02-12 | 天津富纳源创科技有限公司 | Liquid crystal panel |
| CN104238857A (en) * | 2014-09-17 | 2014-12-24 | 南昌欧菲光科技有限公司 | Touch display screen |
| CN104407410A (en) * | 2014-11-26 | 2015-03-11 | 上海华力微电子有限公司 | Double-refraction depolarization thin film |
| CN105093649A (en) * | 2015-08-14 | 2015-11-25 | 深圳市华星光电技术有限公司 | Blue light prevention polarizer and liquid crystal display panel |
| CN105388662A (en) * | 2015-12-25 | 2016-03-09 | 武汉华星光电技术有限公司 | Display panel and polaroid |
| CN105785665A (en) * | 2016-05-09 | 2016-07-20 | 深圳市华星光电技术有限公司 | Lcd display |
| CN106199812A (en) * | 2016-08-30 | 2016-12-07 | 苏州汇卓网络科技有限公司 | A kind of thinning functional polarizing sheet and its preparation method and application |
| CN107340561A (en) * | 2017-09-04 | 2017-11-10 | 深圳Tcl新技术有限公司 | Polarizer and LCDs |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471295A (en) * | 2018-12-17 | 2019-03-15 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and its manufacturing method |
| CN109471295B (en) * | 2018-12-17 | 2022-01-25 | Tcl华星光电技术有限公司 | Liquid crystal display panel and method for manufacturing the same |
| WO2022033237A1 (en) * | 2020-08-10 | 2022-02-17 | 京东方科技集团股份有限公司 | Display panel and display device |
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Application publication date: 20180717 |
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