WO2015003371A1 - 液晶显示器及其光学补偿方法 - Google Patents
液晶显示器及其光学补偿方法 Download PDFInfo
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- WO2015003371A1 WO2015003371A1 PCT/CN2013/079240 CN2013079240W WO2015003371A1 WO 2015003371 A1 WO2015003371 A1 WO 2015003371A1 CN 2013079240 W CN2013079240 W CN 2013079240W WO 2015003371 A1 WO2015003371 A1 WO 2015003371A1
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- Prior art keywords
- uniaxial
- compensation
- compensation film
- liquid crystal
- film
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Classifications
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- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
-
- 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
-
- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133631—Birefringent elements, e.g. for optical compensation with a spatial distribution of the retardation value
-
- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133742—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers for homeotropic alignment
-
- 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
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/02—Number of plates being 2
-
- 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
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/13—Positive birefingence
-
- 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
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/14—Negative birefingence
Definitions
- the present invention relates to the field of liquid crystal display technology, and in particular to a liquid crystal display and an optical compensation method thereof.
- TFT-LCD thin film transistor
- the compensation principle of the compensation film is generally to correct the phase difference generated by the liquid crystal at different viewing angles, so that the birefringence property of the liquid crystal molecules is compensated for symmetry.
- the compensation film used for large-size LCD TVs is mostly for Vertical Alignment (VA) display mode.
- VA Vertical Alignment
- Konica's N-TAC was used in the early days, and it has been developed. It forms the Zeonor of OPOTES, the F-TAC series of Fujitsu, and the X-Plate of Nitto Denko.
- the compensation value of the compensation film is different, the dark state light leakage of the large viewing angle is different, and the contrast is also different. Referring to FIG. 1 and FIG. 2, FIG.
- FIG. 1 is a prior art using an unaxial positive birefringence A-Plate and a negative hyperbolic biaxial C-compensation film (unaxial Negative birefringence C).
- -Plate Schematic diagram of compensating for the brightness distribution of the dark state, such as the Isoluminance contour
- FIG. 2 is a schematic diagram of the equal contrast ratio contour of the prior art using A-Plate and C-Plate compensation, wherein the above A -Plate and C-Plate compensation values are as follows:
- the present invention constructs a liquid crystal display, wherein the liquid crystal display has a wavelength of 550 nm, and the liquid crystal display has a liquid crystal optical path difference LCAND range of 324.3 nm LCAND 342.8 nm at 550 nm, and the liquid crystal display includes:
- liquid crystal layer disposed between the first substrate and the second substrate
- a first polarizing film disposed on an outer side of the first substrate
- a second polarizing film disposed on an outer side of the second substrate
- the positive hyperbolic uniaxial A-compensation film and the negative hyperbolic uniaxial C-compensation film are disposed on the first substrate and the first polarizer Between the films or between the second substrate and the second polarizing film;
- the in-plane optical path difference compensation value Ro of the positive hyperbolic uniaxial A-compensation film has a value range of 92 nm Ro 184 nm, and the out-of-plane optical path difference compensation value Rth ranges from 46 nm Rth to 92 nm ;
- the compensation value Rth of the negative hyperbolic uniaxial C-compensation film ranges from Yl Rth Y2; wherein Yl and ⁇ 2 satisfy the following formula:
- X is the out-of-plane optical path compensation value of the positive hyperbolic uniaxial ⁇ -compensation film
- the liquid crystal display includes:
- liquid crystal layer disposed between the first substrate and the second substrate
- a first polarizing film disposed on an outer side of the first substrate
- a second polarizing film disposed on an outer side of the second substrate
- the positive hyperbolic uniaxial A-compensation film and the negative hyperbolic uniaxial C-compensation film are disposed on the first substrate and the first polarizer Between the films or between the second substrate and the second polarizing film;
- the in-plane optical path difference compensation value Ro of the positive hyperbolic uniaxial A-compensation film has a value range of 92 nm Ro 184 nm, and the out-of-plane optical path difference compensation value Rth ranges from 46 nm Rth to 92 nm;
- the compensation value Rth of the negative hyperbolic uniaxial C-compensation film ranges from Yl Rth Y2; where Yl and ⁇ 2 satisfy the following formula:
- ⁇ 2 -0.00006472 ⁇ 4 +0.017705 ⁇ -1.8284 ⁇ 2 +84.4843 ⁇ -1181.17;
- X is the out-of-plane optical path compensation value of the positive hyperbolic uniaxial ⁇ -compensation film
- the present invention also constructs an optical compensation method for a liquid crystal display, the method comprising:
- Rth is in the range of 46 nm Rth 92 nm ;
- Adjusting the compensation value Rth of the negative hyperbolic uniaxial C-compensation film is in Yl Rth Y2; wherein Yl and ⁇ 2 satisfy the following formula:
- X is the out-of-plane optical path difference compensation value Rth of the positive hyperbolic uniaxial ⁇ -compensation film; the positive double zigzag uniaxial A-compensation film and the negative hyperbolic uniaxial C-compensation film are disposed in the Between the first substrate of the liquid crystal display and the first polarizing film or between the second substrate and the second polarizing film.
- the invention reduces the dark state light leakage phenomenon of the large viewing angle by changing the compensation value of the positive hyperbolic uniaxial A-compensation film and the negative hyperbolic uniaxial C-compensation film in the liquid crystal display, and the invention can effectively increase the large viewing angle ( Contrast and sharpness of non-horizontal, large azimuth angles.
- FIG. 1 is a schematic diagram of brightness distributions in the prior art using compensation values of A-Plate and C-Plate to compensate for dark state light leakage;
- FIG. 2 is a schematic diagram showing the same contrast distribution of the full viewing angle after compensation using the compensation values of A-Plate and C-Plate in the prior art;
- FIG. 3 is a schematic structural view of a liquid crystal display according to a second preferred embodiment of the present invention
- FIG. 4 is a schematic structural view of a liquid crystal display according to a second preferred embodiment of the present invention
- 5 is a schematic structural view of a liquid crystal display according to a third preferred embodiment of the present invention
- FIG. 6 is a schematic view showing the structure of a liquid crystal display according to a fourth preferred embodiment of the present invention
- Figure 8 is a graph showing the variation of the light leakage with the delay value during the simulation of the liquid crystal display.
- Figure 9 is a schematic diagram of the brightness distribution of the dark state light leakage after the compensation value of the embodiment of the present invention is used for the A-Plate and the C-Plate;
- FIG. 10 is a schematic diagram showing the same contrast distribution of the full viewing angle after the A-Plate and the C-Plate use the compensation value according to an embodiment of the present invention
- FIG. 11 is a schematic diagram showing brightness distributions of dark state light leakage after A-Plate and C-Plate use compensation values according to another embodiment of the present invention.
- FIG. 12 is a schematic diagram showing the same contrast distribution of the full-view angle after the A-Plate and the C-Plate use the compensation value according to another embodiment of the present invention.
- FIG. 13 is a schematic diagram showing brightness distributions of dark state light leakage after A-Plate and C-Plate use compensation values according to still another embodiment of the present invention.
- Fig. 14 is a view showing the same contrast distribution of the full-view angles after the A-Plate and the C-Plate use the compensation value according to still another embodiment of the present invention.
- FIG. 3 is a schematic structural diagram of a first preferred embodiment of a liquid crystal display according to an embodiment of the present invention.
- the liquid crystal display of the embodiment of the present invention is preferably a vertical alignment (VA) liquid crystal display, wherein the liquid crystal display has a wavelength range of visible light (380 nm, 760 nm), preferably 550 nm, and the liquid crystal display is at 550 nm.
- the liquid crystal path difference LCAND range is 324.3 nm LCA ND 342.8, that is, the interval [324.3 nm, 342.8 nm]; and the liquid crystal pretilt angle Pretilt angle is 85° Pretilt angle ⁇ 90°, that is, the interval [85°, 90°).
- the liquid crystal display includes a first substrate 31, a second substrate 32, a liquid crystal layer 33, a first polarizing film 34, and a second polarizing film 35, and further includes a positive double zigzag The uniaxial A-compensation film 36 and a negative hyperbolic uniaxial C-compensation film 37.
- the liquid crystal layer 33 is disposed between the first substrate 31 and the second substrate 32.
- the first polarizing film 34 is disposed outside the first substrate 31, and the second polarizing film 35 is disposed on the The outer side of the second substrate 32.
- the positive hyperbolic uniaxial A-compensation film 36 and a negative hyperbolic uniaxial C-compensation film 37 may be disposed on different sides of the liquid crystal layer, and disposed in the same
- the first substrate 31 is interposed between the first polarizing film 34 or the second substrate 31 and the second polarizing film 35.
- the positive hyperbolic uniaxial A-compensation film 36 is disposed between the first substrate 31 and the first polarizing film 34.
- the negative hyperbolic uniaxial C-compensation film 37 is disposed between the second substrate 32 and the second polarizing film 35.
- the positive hyperbolic uniaxial A-compensation film 36 is disposed between the second substrate 32 and the second polarizing film 35, and the negative double The meandering uniaxial C-compensation film 37 is disposed between the first substrate 3 1 and the first polarizing film 34.
- the positive hyperbolic uniaxial A-compensation film 36 and the negative hyperbolic uniaxial C-compensation film 37 may be disposed on the same side of the liquid crystal layer, and disposed in the same
- the first substrate 3 1 is interposed between the first polarizing film 34 or the second substrate 3 1 and the second polarizing film 35 .
- the positive hyperbolic uniaxial A-compensation film 36 and the negative hyperbolic uniaxial C-compensation film 37 are attached and connected to each other. Between the first substrate 3 1 and the first polarizing film 34 .
- the positive hyperbolic uniaxial A-compensation film 36 and the negative hyperbolic uniaxial C-compensation film 37 are attached and connected to each other. Between the second substrate 32 and the second polarizing film 35.
- the absorption axis of the first polarizing film 34 is 0 degrees
- the absorption axis of the second polarizing film 35 is 90 degrees.
- the first polarizing light When the absorption axis of the film 34 is 90 degrees and the absorption axis of the second polarizing film 35 is 0 degree, it is only required to ensure the positive hyperbolic uniaxial A-compensation film 36 or the negative hyperbolic uniaxial C-compensation.
- the slow axis of the film 37 may be perpendicular to the absorption axis of the polarizing film (the first polarizing film 34 or the second polarizing film 35) on the same side as the liquid crystal layer 33, and is suitable for use in the present invention.
- the present invention simulates the dark state light leakage by setting different compensation values of the positive hyperbolic uniaxial A-compensation film 36 and the negative hyperbolic uniaxial C-compensation film 37, and obtains the corresponding dark light leakage according to the simulation result. The range of compensation values.
- the positive hyperbolic uniaxial A-compensation film 36 and the slow axis of the negative hyperbolic uniaxial C-compensation film 37 and its corresponding polarizing film are first disposed.
- the angle of the absorption axis is 90 °
- the liquid crystal pretilt angle of the liquid crystal display is set to [85 ° , 90 ° );
- the liquid crystal azimuth pretwist in the four quadrants is set to 45 °, and the liquid crystal optical path is set.
- the difference LCA ND is set in the interval [324.3nm, 342.8nm] ; and the light source used for the simulation is the blue-YAG (Yttrium Aluminum Garnet) LED spectrum, the central brightness is defined as 100nit, and the light source distribution is the Lambert distribution.
- the light source used for the simulation is the blue-YAG (Yttrium Aluminum Garnet) LED spectrum, the central brightness is defined as 100nit, and the light source distribution is the Lambert distribution.
- FIG. 7 shows that when the liquid crystal optical path difference LCA ND is 342.3 nm and the pretilt angle is 89 ° and 85 °
- FIG. 7 shows that when the liquid crystal optical path difference LCA ND is 342.3 nm and the pretilt angle is 89 ° and 85 °
- FIG. 7 shows that when the liquid crystal optical path difference LCA ND is 342.3 nm and the pretilt angle is 89 ° and 85 °
- FIG. 7 shows that when the liquid crystal optical path difference LCA ND is 342.3 nm and the pretilt angle is 89 ° and 85 °
- FIG. 7 shows that when the liquid crystal optical path difference LCA ND is 342.3 nm and the pretilt angle is 89 ° and 85 °
- FIG. 7 shows that when the liquid crystal optical path difference LCA ND is 342.3 nm and the pretilt angle is 89 ° and 85 °
- FIG. 7 shows that when the liquid crystal optical path difference LCA ND is 342.3
- the A-Plate Ro in Figs. 7 and 8 represents the in-plane retardation Ro of the positive hyperbolic uniaxial A-compensation film 36
- the A-Plate Rth represents the thickness direction retardation of the positive hyperbolic uniaxial A-compensation film 36.
- Rth, C-Plate Rth represents the thickness direction of the negative hyperbolic uniaxial C-compensation film 37 Delay Rth.
- the range of delay values for the axis C-compensation film 37 is as follows:
- the in-plane optical path difference compensation value Ro of the positive hyperbolic uniaxial A-compensation film 36 at a wavelength of 550 nm is: 92 nm Ro 184 nm, and the out-of-plane optical path difference compensation value Rth ranges from: 46 nm Rth 92 nm ; the compensation value Rth of the negative hyperbolic uniaxial C-compensation film 37 ranges from Yl Rth Y2, where Yl and ⁇ 2 satisfy the following formulas (1) and (2):
- Nx is the positive hyperbolic uniaxial A-compensation film 36 face
- Ny is the refractive index in the Y direction orthogonal to the X direction in the plane of the positive hyperbolic uniaxial A-compensation film 36
- Nz is the positive double
- dl is the thickness of the positive hyperbolic uniaxial A-compensation film 36
- Nx > Ny, Ny Nz.
- the range of the compensation value Rth of the negative hyperbolic uniaxial C-compensation film is obtained by the following formula (5):
- the thickness d2 of the negative hyperbolic uniaxial C-compensation film 37 is adjusted according to the formula (5).
- the range of the compensation value Rth of the negative hyperbolic uniaxial C-compensation film 37 is adjusted to Yl Rth Y2.
- the refractive index Mx My Mz of the negative hyperbolic uniaxial C-compensation film 37 is adjusted, according to the formula (5),
- the range of the compensation value Rth of the negative hyperbolic uniaxial C-compensation film 37 is adjusted to Y1 Rth Y2.
- the present invention also provides an optical compensation method using a liquid crystal display, wherein the method is directed to a VA liquid crystal display, and the liquid crystal display has a wavelength range of visible light (380 nm, 760 nm), preferably 550 nm, and the liquid crystal display is at a wavelength
- the LCAND range of the liquid crystal path difference at 550 nm is [324.3 nm, 342.8 nm], and the liquid crystal pretilt angle range is [85 °, 90°).
- the liquid crystal display comprises a positive hyperbolic uniaxial A-compensation film 36 and a negative hyperbolic uniaxial C-compensation film 37, the positive hyperbolic uniaxial A-compensation film 36 and a negative hyperbolic
- the uniaxial C-compensation film 37 is disposed on the opposite sides of the liquid crystal layer 33 and disposed on the first substrate 31 and the first polarizing film 34 or the second substrate 32 and the second polarizing film 35
- the positive hyperbolic uniaxial A-compensation film 36 and the negative hyperbolic uniaxial C-compensation film 37 may also be disposed on the same side of the liquid crystal layer 33, and
- the first substrate 31 is disposed between the first polarizing film 34 or the second substrate 33 and the second polarizing film 35, as shown in FIG. 5 and FIG.
- the range of the in-plane retardation compensation value Ro of the positive hyperbolic uniaxial A-compensation film 36 is adjusted to 92 nm Ro 184 nm.
- X is the positive buckling single-axis ⁇ -compensation film 36 out-of-plane optical path difference compensation value Rth.
- the above steps (I), (II) and (III) are not in any order.
- the in-plane optical path compensation value Ro of the positive hyperbolic uniaxial A-compensation film 36 is adjusted to be in the range of 92 nm Ro 184 nm, and the positive hyperbolic uniaxial A- is adjusted.
- the value of the out-of-plane retardation compensation value Rth of the compensation film 36 is 46 nm Rth 92 nm, it is adjusted by the following formula:
- Rth [(Nx+Ny)/2-Nz]*dl ;
- Nx is the refractive index in the X direction of the maximum refractive index given in the plane of the positive hyperbolic uniaxial A-compensation film 36
- Ny is the in-plane of the positive hyperbolic uniaxial A-compensation film 36
- Nz is the refractive index in the thickness direction of the positive hyperbolic uniaxial A-compensation film 36
- dl is the thickness of the positive hyperbolic uniaxial A-compensation film 36.
- Nx > Ny, Ny Nz.
- the compensation value Rth of the negative hyperbolic uniaxial C-compensation film 37 is adjusted in the range of Yl Rth Y2, and is obtained by the following adjustment:
- Rth [(Mx+My)/2-Mz]*d2 ;
- Mx is the refractive index in the X direction of the maximum refractive index given in the plane of the negative hyperbolic uniaxial C-compensation film 37
- My is a negative hyperbolic uniaxial C-compensation film surface 37 orthogonal to the X direction
- the refractive index in the Y direction, Mz is the refractive index in the thickness direction of the negative hyperbolic uniaxial C-compensation film 37
- the embodiments of the present invention are mainly directed to two kinds of optical compensation films of the liquid crystal display at a wavelength of 550 nm, a liquid crystal optical path difference LCA ND at [324.3 nm, 342.8 nm], and a liquid crystal pretilt angle range of [85 °, 90 °]:
- the double-curved uniaxial A-compensation film and the negative hyperbolic uniaxial C-compensation film can reduce the dark state light leakage phenomenon of the large viewing angle by adjusting the compensation values of the above two compensation films, and the invention can effectively increase the large viewing angle ( Contrast and sharpness of non-horizontal, large azimuth angles.
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
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- Optics & Photonics (AREA)
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Abstract
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Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016524648A JP6266769B2 (ja) | 2013-07-10 | 2013-07-11 | 液晶ディスプレイの光学補償方法 |
| KR1020157034422A KR101824952B1 (ko) | 2013-07-10 | 2013-07-11 | 액정 디스플레이 및 액정 디스플레이에 대한 광학적 보정 방법 |
| US14/004,419 US9188809B2 (en) | 2013-07-10 | 2013-07-11 | Liquid crystal display and method of optical compensation thereof |
| EA201690186A EA030366B9 (ru) | 2013-07-10 | 2013-07-11 | Жидкокристаллический дисплей и способ его оптической компенсации |
| GB1519264.4A GB2530430B (en) | 2013-07-10 | 2013-07-11 | Liquid crystal display and method of optical compensation thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310288042.5A CN103364995B (zh) | 2013-07-10 | 2013-07-10 | 液晶显示器及其光学补偿方法 |
| CN201310288042.5 | 2013-07-10 |
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| WO2015003371A1 true WO2015003371A1 (zh) | 2015-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2013/079240 Ceased WO2015003371A1 (zh) | 2013-07-10 | 2013-07-11 | 液晶显示器及其光学补偿方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9188809B2 (zh) |
| JP (1) | JP6266769B2 (zh) |
| KR (1) | KR101824952B1 (zh) |
| CN (1) | CN103364995B (zh) |
| EA (1) | EA030366B9 (zh) |
| GB (1) | GB2530430B (zh) |
| WO (1) | WO2015003371A1 (zh) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364995B (zh) * | 2013-07-10 | 2016-03-09 | 深圳市华星光电技术有限公司 | 液晶显示器及其光学补偿方法 |
| CN103605239B (zh) * | 2013-11-22 | 2016-08-17 | 深圳市华星光电技术有限公司 | 一种液晶显示器 |
| CN103605233B (zh) * | 2013-11-22 | 2016-08-24 | 深圳市华星光电技术有限公司 | 一种液晶显示器 |
| CN104062808B (zh) * | 2014-06-25 | 2016-08-17 | 深圳市华星光电技术有限公司 | 液晶显示器及其光学补偿方法 |
| CN104035234B (zh) * | 2014-06-25 | 2016-06-01 | 深圳市华星光电技术有限公司 | 液晶显示器及其光学补偿方法 |
| CN104536204A (zh) * | 2014-12-25 | 2015-04-22 | 深圳市华星光电技术有限公司 | 液晶显示器 |
| CN104536205A (zh) * | 2014-12-25 | 2015-04-22 | 深圳市华星光电技术有限公司 | 液晶显示器 |
| KR20180063415A (ko) | 2016-12-01 | 2018-06-12 | 삼성디스플레이 주식회사 | 표시장치 |
| CN112698527B (zh) * | 2020-12-30 | 2023-04-18 | 天马微电子股份有限公司 | 液晶显示面板及显示装置 |
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| KR20100000793A (ko) * | 2008-06-25 | 2010-01-06 | 엘지디스플레이 주식회사 | 광학 보상필름을 포함하는 횡전계방식 액정표시장치 |
| WO2014000371A1 (zh) * | 2012-06-29 | 2014-01-03 | 京东方科技集团股份有限公司 | 液晶显示面板及液晶显示装置 |
| CN202886791U (zh) * | 2012-08-31 | 2013-04-17 | 京东方科技集团股份有限公司 | 视角补偿装置、垂直取向液晶显示面板和液晶显示装置 |
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2013
- 2013-07-10 CN CN201310288042.5A patent/CN103364995B/zh not_active Expired - Fee Related
- 2013-07-11 EA EA201690186A patent/EA030366B9/ru not_active IP Right Cessation
- 2013-07-11 GB GB1519264.4A patent/GB2530430B/en not_active Expired - Fee Related
- 2013-07-11 JP JP2016524648A patent/JP6266769B2/ja active Active
- 2013-07-11 KR KR1020157034422A patent/KR101824952B1/ko active Active
- 2013-07-11 US US14/004,419 patent/US9188809B2/en not_active Expired - Fee Related
- 2013-07-11 WO PCT/CN2013/079240 patent/WO2015003371A1/zh not_active Ceased
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| EP0793133A2 (en) * | 1996-02-28 | 1997-09-03 | Fujitsu Limited | Liquid crystal display device operating in a vertically aligned mode |
| CN1745329A (zh) * | 2003-01-28 | 2006-03-08 | Lg化学株式会社 | 具有正补偿膜的垂直排列型液晶显示器 |
| CN1860404A (zh) * | 2004-11-12 | 2006-11-08 | Lg化学株式会社 | 垂直取向的液晶显示器 |
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Also Published As
| Publication number | Publication date |
|---|---|
| EA201690186A1 (ru) | 2016-07-29 |
| EA030366B9 (ru) | 2018-10-31 |
| JP2016528536A (ja) | 2016-09-15 |
| CN103364995B (zh) | 2016-03-09 |
| KR20160003275A (ko) | 2016-01-08 |
| CN103364995A (zh) | 2013-10-23 |
| JP6266769B2 (ja) | 2018-01-24 |
| GB201519264D0 (en) | 2015-12-16 |
| US9188809B2 (en) | 2015-11-17 |
| KR101824952B1 (ko) | 2018-02-02 |
| GB2530430B (en) | 2019-12-18 |
| EA030366B1 (ru) | 2018-07-31 |
| US20150248032A1 (en) | 2015-09-03 |
| GB2530430A (en) | 2016-03-23 |
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