WO2013181855A1 - Psva型液晶显示面板、液晶显示面板及液晶显示装置 - Google Patents

Psva型液晶显示面板、液晶显示面板及液晶显示装置 Download PDF

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WO2013181855A1
WO2013181855A1 PCT/CN2012/076709 CN2012076709W WO2013181855A1 WO 2013181855 A1 WO2013181855 A1 WO 2013181855A1 CN 2012076709 W CN2012076709 W CN 2012076709W WO 2013181855 A1 WO2013181855 A1 WO 2013181855A1
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Prior art keywords
liquid crystal
strip electrode
adjacent
region
crystal display
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PCT/CN2012/076709
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English (en)
French (fr)
Inventor
康志聪
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深圳市华星光电技术有限公司
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Priority to US13/574,611 priority Critical patent/US20130321748A1/en
Publication of WO2013181855A1 publication Critical patent/WO2013181855A1/zh

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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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1393—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • G02F2413/08—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 with a particular optical axis orientation

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a PSVA type liquid crystal display panel, a liquid crystal display panel, and a liquid crystal display device.
  • the general VA Cell (Vertical Alignment) Cell, vertical orientation panel) design must pass ITO pattern (Indium Tin Oxides pattern)
  • ITO pattern Indium Tin Oxides pattern
  • the standard design specification indicates the tilting direction of liquid crystal molecules (refers to the direction parallel to the optical axis direction of the polarizer).
  • the tilting direction of the liquid crystal molecules can avoid the phenomenon that the response speed is obviously too slow due to the deviation of the tilting direction of the liquid crystal molecules during the driving process of the liquid crystal molecules.
  • the design of the pixel electrode pattern requires a strip electrode region on the ITO electrode to form a normal electric field distribution, and the strip electrode region and the horizontal optical axis of the polarizer have an angle of 45 degrees.
  • the more the strip electrode regions are denser the better the electric field can be ensured, and the liquid crystal molecules can be ensured faster.
  • the area between the opposing strip electrode regions also means that there is no electric field to drive the rotation of the liquid crystal molecules in the region, resulting in a decrease in the transmittance of light in this region.
  • PSVA Polymer Stabilization Vertical Alignment, polymer stable alignment technology
  • PVA Positioned Vertical Alignment, image vertical adjustment technology
  • liquid crystal displays are all VA type liquid crystal displays.
  • a pixel electrode pattern in a PSVA type liquid crystal display as shown in FIG. 1 or a pixel electrode pattern in a PVA type liquid crystal display (FIG. 2), an ITO thereof If the pitch (the spacing between the strip electrode regions) is too large, that is, as shown in FIG. 1, between two adjacent strip electrode regions 100, or as in FIG.
  • the technical problem to be solved by the present invention is to provide a PSVA type liquid crystal display panel, a liquid crystal display panel, and a liquid crystal display device, which can improve the response speed of liquid crystal molecules while ensuring a high light transmittance.
  • one technical solution adopted by the present invention is to provide a PSVA.
  • a liquid crystal display panel a relatively disposed upper substrate and a lower substrate, a liquid crystal filled between the upper substrate and the lower substrate, and liquid crystal molecules in the liquid crystal are vertically oriented;
  • an upper polarizer is disposed on a surface of the upper substrate, and a surface of the lower substrate is disposed a lower polarizer, and an optical axis of the upper polarizer and an optical axis of the lower polarizer are perpendicular to each other;
  • a surface of the upper polarizer adjacent to the side of the lower polarizer is provided with an upper corrugated sheet, and a surface of the lower polarizer adjacent to the side of the upper polarizer
  • the lower wave plate is arranged; wherein the slow axis of the upper wave plate and the slow axis of the lower wave plate are respectively at an angle of 45 degrees with the optical axis of the upper polarizer or the lower polarizer, and the wave plate is engraved
  • the pixel electrode includes a data line region, a scan line region, and a display region, and a spacing distance between adjacent strip electrode regions of the data line region and/or the scan line region is smaller than between adjacent strip electrode regions of the display region. Separation distance.
  • a liquid crystal display panel comprising: an upper substrate and a lower substrate disposed oppositely, a liquid crystal filled between the upper substrate and the lower substrate, and liquid crystal molecules in the liquid crystal
  • the surface of the upper substrate is provided with an upper polarizer
  • the surface of the lower substrate is provided with a lower polarizer
  • the optical axis of the upper polarizer and the optical axis of the lower polarizer are perpendicular to each other
  • the upper polarizer is adjacent to the side of the lower polarizer
  • the surface of the lower polarizer is disposed adjacent to the surface of the upper polarizer and the lower corrugated sheet is disposed; wherein the slow axis of the upper corrugated plate and the slow axis of the lower engraved wave plate are respectively associated with the upper polarizer or
  • the optical axes of the lower polarizers are at an angle of 45 degrees, and the slow axis of the upper corrugated plate and the slow axis of the lower
  • the liquid crystal display panel is a PSVA type display panel
  • the surface of the lower engraved wave plate adjacent to the side of the upper corrugated plate is correspondingly provided with a pixel electrode
  • the pixel electrodes each comprise a plurality of strip electrode regions arranged in parallel, adjacent strip electrodes The separation distance between the zones is greater than or equal to 10 microns.
  • the strip electrode region and the optical axis of the lower polarizer have an angle of 45 degrees.
  • the spacing distances between all adjacent strip electrode regions are equal or unequal.
  • the pixel electrode includes a data line region, a scan line region, and a display region, and a spacing distance between adjacent strip electrode regions of the data line region and/or the scan line region is smaller than between adjacent strip electrode regions of the display region. Separation distance.
  • the liquid crystal display panel is a PVA type display panel
  • the surface of the upper engraved wave plate adjacent to the lower engraved wave plate is provided with a color filter layer
  • the surface of the lower engraved wave plate adjacent to the side of the upper engraved wave plate is provided with a thin film transistor layer.
  • the surface of the color filter layer adjacent to the side of the thin film transistor layer is provided with a common electrode
  • the surface of the thin film transistor layer adjacent to the side of the color filter layer is correspondingly provided with a pixel electrode
  • the pixel electrode comprises a plurality of first strip electrodes arranged in parallel a common electrode includes a second strip electrode region corresponding to the first strip electrode region.
  • the first strip electrode region and the second strip electrode region are arranged in parallel, and adjacent to the first strip The separation distance between the electrode region and the second strip electrode region is greater than or equal to 35 microns.
  • first strip electrode region and the second strip electrode region respectively form an angle of 45 degrees with the optical axis of the upper polarizer or the lower polarizer.
  • the distance between all adjacent first strip electrode regions and the second strip electrode region is equal or unequal.
  • the pixel electrode includes a data line region, a scan line region, and a display region, and the distance between the adjacent first strip electrode region and the second strip electrode region corresponding to the data line region and the scan line region is smaller than the display region. a spacing distance between the adjacent first strip electrode region and the second strip electrode region; or a corresponding first strip electrode region and a second strip corresponding to the data line region or the scan line region The spacing distance between the electrode regions is smaller than the spacing distance between the adjacent first strip electrode regions and the second strip electrode regions correspondingly disposed in the display region.
  • a liquid crystal display device including a liquid crystal display panel and a backlight module for providing illumination to the liquid crystal display panel
  • the liquid crystal display panel comprising: an oppositely disposed upper substrate and The lower substrate, the upper substrate and the lower substrate are filled with liquid crystal, the liquid crystal molecules in the liquid crystal are vertically oriented;
  • the upper substrate is provided with an upper polarizer on the surface
  • the lower substrate is provided with a lower polarizer, and the optical axis of the upper polarizer
  • the optical axis of the lower polarizer is perpendicular to each other;
  • the surface of the upper polarizer adjacent to the side of the lower polarizer is provided with an upper engraved wave plate, and the surface of the lower polarizer adjacent to the side of the upper polarizer is provided with a lower engraved wave plate;
  • the slow axis of the wave plate and the slow axis of the lower wave plate are respectively at an angle of 45 degrees with the optical axis of the upper polarizer
  • the liquid crystal display panel is a PSVA type display panel
  • the surface of the lower engraved wave plate adjacent to the side of the upper corrugated plate is correspondingly provided with a pixel electrode
  • the pixel electrodes each comprise a plurality of strip electrode regions arranged in parallel, adjacent strip electrodes The separation distance between the zones is greater than or equal to 10 microns.
  • the strip electrode region and the optical axis of the lower polarizer have an angle of 45 degrees.
  • the spacing distances between all adjacent strip electrode regions are equal or unequal.
  • the pixel electrode includes a data line region, a scan line region, and a display region, and a spacing distance between adjacent strip electrode regions of the data line region and/or the scan line region is smaller than between adjacent strip electrode regions of the display region. Separation distance.
  • the liquid crystal display panel is a PVA type display panel
  • the surface of the upper engraved wave plate adjacent to the lower engraved wave plate is provided with a color filter layer
  • the surface of the lower engraved wave plate adjacent to the side of the upper engraved wave plate is provided with a thin film transistor layer.
  • the surface of the color filter layer adjacent to the side of the thin film transistor layer is provided with a common electrode
  • the surface of the thin film transistor layer adjacent to the side of the color filter layer is correspondingly provided with a pixel electrode
  • the pixel electrode comprises a plurality of first strip electrodes arranged in parallel a common electrode includes a second strip electrode region corresponding to the first strip electrode region.
  • the first strip electrode region and the second strip electrode region are arranged in parallel, and adjacent to the first strip The separation distance between the electrode region and the second strip electrode region is greater than or equal to 35 microns.
  • first strip electrode region and the second strip electrode region respectively form an angle of 45 degrees with the optical axis of the upper polarizer or the lower polarizer.
  • the distance between all adjacent first strip electrode regions and the second strip electrode region is equal or unequal.
  • the pixel electrode includes a data line area, a scan line area, and a display area;
  • the distance between the adjacent first strip electrode region and the second strip electrode region corresponding to the data line region and the scan line region is smaller than the adjacent first strip electrode region and the second strip corresponding to the display region.
  • the distance between the adjacent electrode regions; or, the distance between the adjacent first strip electrode region and the second strip electrode region corresponding to the data line region or the scan line region is smaller than the adjacent position of the display region The distance between the first strip electrode region and the second strip electrode region.
  • the invention has the beneficial effects that the PSVA type liquid crystal display panel, the liquid crystal display panel and the liquid crystal display device of the present invention are respectively provided with upper and lower engraved wave plates on the upper and lower polarizers, and are different from the prior art.
  • the slow axis of the upper wave plate and the slow axis of the lower wave plate are respectively at an angle of 45 degrees with the optical axis of the upper polarizer or the lower polarizer, and the slow axis and the lower engraved wave plate of the upper engraved wave plate
  • the slow axes are perpendicular to each other, and the incident light can be emitted parallel to the original light direction after being polarized by the upper wave plate, the liquid crystal molecules, and the lower wave plate, thereby improving the response speed of the liquid crystal while ensuring the light transmittance. .
  • FIG. 1 is a schematic structural view of a pixel electrode pattern of a prior art PSVA type liquid crystal display panel
  • FIG. 2 is a schematic structural view of a pixel electrode pattern of a PVA liquid crystal display panel of the prior art
  • FIG. 3 is a schematic view showing a response curve of liquid crystal molecules when a voltage is applied to electrodes of a VA type display panel;
  • FIG. 4 is a schematic view showing another response curve of liquid crystal molecules when a voltage is applied to electrodes of a VA type display panel;
  • FIG. 5 is a schematic structural view of a first embodiment of a liquid crystal display panel of the present invention.
  • FIG. 6 is a schematic diagram showing the relationship between optical axes between an upper polarizer, a lower polarizer, an upper engraved wave plate, and a lower engraved wave plate of the liquid crystal display panel shown in FIG. 5;
  • Figure 7 is a schematic view showing the operation of the embodiment of the liquid crystal display panel shown in Figure 5;
  • FIG. 8 is a schematic view showing a response curve of liquid crystal molecules when a voltage is applied in the embodiment of the liquid crystal display panel shown in FIG. 5;
  • FIG. 9 is a schematic structural view of a pixel electrode of a second embodiment of a liquid crystal display panel of the present invention.
  • FIG. 10 is a schematic structural view of a third embodiment of a liquid crystal display panel of the present invention.
  • FIG. 11 is a schematic view showing the structure of a pixel electrode of the PVA type display panel shown in FIG.
  • FIG. 5 is a schematic structural view of a first embodiment of a liquid crystal display panel of the present invention.
  • the first embodiment of the liquid crystal display panel of the present invention comprises an upper substrate 11, a lower substrate 12, an upper polarizer 13, a lower polarizer 14, an upper engraved plate 15, and a lower engraved wave plate 16.
  • the upper substrate 11 and the lower substrate 12 are oppositely disposed, and the upper substrate 11 and the lower substrate 12 are filled with a vertically oriented liquid crystal layer containing liquid crystal molecules 17, wherein the liquid crystal molecules 17 are VA liquid crystal molecules.
  • the upper polarizer 13 is disposed on the surface of the upper substrate 11, and the lower polarizer 14 is disposed on the surface of the lower substrate 12, and the optical axes of the upper polarizer 13 and the lower polarizer 14 are perpendicular to each other.
  • the upper engraved wave plate 15 is disposed on a surface of the upper polarizer 13 adjacent to the lower polarizer 14 side
  • the lower engraved wave plate 16 is disposed on a surface of the lower polarizer 14 adjacent to the upper polarizer 13 side, and the upper wave plate 15 is mounted thereon.
  • Both the lower and the lower wave plates 16 are quarter- ⁇ phase wave plates.
  • the slow axis of the upper wave plate 15 and the slow axis of the lower wave plate 16 are respectively at an angle of 45 degrees with the optical axis of the upper polarizer 13 or the lower polarizer 14, and the upper wave plate 15 is The slow axis is perpendicular to the slow axis of the lower wave plate 16 (as shown in Figure 6).
  • the polarized light of the lower polarizer 14 forms a lower polarized light, and the lower polarized light passes through the lower wave plate 16 to generate circularly polarized light, as shown in FIG.
  • the circularly polarized light is a left circularly polarized polarized light, and when the left circularly polarized polarized light passes through the liquid crystal molecules 17, although the liquid crystal molecules 17 phase invert the left circularly polarized polarized light, they only cause the left circular polarization
  • the polarized light passes through the liquid crystal molecules 17, it becomes a right circularly polarized polarized light, and is still circularly polarized light; then, the right circularly polarized polarized light passes through the upper engraved wave plate 15, and is polarized by the polarizing action of the upper engraved wave plate 15 by circular polarization.
  • the light is reduced to linearly polarized light, that is, the upper polarized light having a polarization direction parallel to the optical axis of the upper polarizer 13 is generated, and finally the light is emitted through the optical axis of the upper polarizer 13. Therefore, regardless of whether the tilting direction of the liquid crystal molecules is at an angle of 45 degrees with the optical axis of the polarizer (the upper polarizer 13 or the lower polarizer 14), the optical brightness is maintained at a 45 degree angle with the optical axis of the polarizer.
  • the angles are the same, and therefore the dynamic response of the liquid crystal molecules 17 does not have an overshoot voltage or a negative voltage phenomenon.
  • the response curve of the corresponding liquid crystal molecules 17 is as shown in FIG. 8 and will not be described here.
  • the upper engraved wave plate 15 and the lower engraved wave plate 16 are respectively disposed on the upper polarizer 13 and the lower polarizer 14, and the slow axis of the upper wave plate 15 and the lower wave plate 16 are slow.
  • the axis is at an angle of 45 degrees with the optical axis of the upper polarizer 13 or the lower polarizer 14, respectively, and the slow axis of the upper wave plate 15 and the slow axis of the lower wave plate 16 are perpendicular to each other, and the incident light is engraved.
  • FIG. 9 is a schematic structural view of an electrode of a second embodiment of a liquid crystal display panel according to the present invention, and FIG.
  • the liquid crystal display panel is a PSVA type display panel
  • the surface of the lower engraved wave plate 16 adjacent to the side of the upper corrugated sheet 15 is correspondingly provided with the pixel electrode 40
  • the pixel electrodes 40 each include a plurality of parallel
  • the strip electrode regions 401 are disposed at intervals, and the distance between adjacent strip electrode regions 401 is greater than or equal to 10 micrometers. In a specific application, the spacing distance between all adjacent strip electrode regions 401 is set to be greater than or equal to 10 micrometers to ensure light transmittance.
  • the strip electrode region 401 and the optical axis of the lower polarizer 14 are at an angle of 45 degrees, and the corresponding effect is that the liquid crystal molecules 17 are in the tilting direction and the lower polarizer 14 under the action of the electric field of the strip electrode region 401.
  • the optical axes are at an angle of 45 degrees.
  • the spacing distance between all adjacent strip electrode regions 401 may be set to be equal or unequal. That is, as shown in FIG. 9, the intervals d1, d2, and d3 between adjacent strip electrode regions 401 may be equal or unequal.
  • the difference in the distance between adjacent strip electrode regions 401 is taken as an example: the pixel electrode 40 includes a data line region (not labeled) on the side, a scan line region (not labeled), and a display region at the center ( Not shown), the spacing distance between adjacent strip electrode regions 401 of the data line region and/or the scan line region is smaller than the spacing distance between adjacent strip electrode regions 401 of the display region, in other words, the data line region and scanning
  • the line region may set the separation distance between its adjacent strip electrode regions 401 individually or simultaneously to be smaller than the separation distance between adjacent strip electrode regions 401 of the display region.
  • the data line area and the scan line area are substantially non-display areas of the pixel electrode 40, and the non-display area has little effect on the display of the liquid crystal display panel in light transmittance, a dense strip electrode is disposed in the non-display area.
  • the response speed of the liquid crystal molecules 17 driven by the non-display area can be increased, and the non-display area can affect the response speed of the liquid crystal molecules 17 driven by the entire pixel electrode 40, thereby improving the correspondence of the entire pixel electrode 40 to some extent.
  • FIG. 10 is a schematic structural view of a third embodiment of a liquid crystal display panel according to the present invention, and FIG. 11 is combined.
  • the liquid crystal display panel is a PVA type display panel
  • the liquid crystal display panel includes an upper substrate 21, a lower substrate 22, an upper polarizer 23, and a lower structure similar to or similar to the first embodiment of the liquid crystal display panel of the present invention.
  • the surface of the upper substrate 21 adjacent to the side of the lower corrugated sheet 26 is provided with a color filter layer 28, and the surface of the lower substrate 22 adjacent to the side of the upper corrugated sheet 25 is provided with a thin film transistor.
  • the surface of the color filter layer 28 adjacent to the side of the thin film transistor layer 29 is provided with a common electrode 281.
  • the surface of the thin film transistor layer 29 adjacent to the side of the color filter layer 28 is correspondingly provided with a pixel electrode 291, and the pixel electrode 291 includes a plurality of parallel intervals.
  • the first strip electrode region 2910 is disposed, and the common electrode 281 includes a second strip electrode region 2810 disposed corresponding to the first strip electrode region 291.
  • first strip electrode region 2910 and the second strip electrode region 2810 are arranged in parallel, and the separation distance between the adjacent first strip electrode region 2910 and the second strip electrode region 2810 is Greater than or equal to 35 microns, it ensures light transmission. Moreover, the first strip electrode region 2910 and the second strip electrode region 2810 are at an angle of 45 degrees with the optical axis of the upper polarizer 21 or the lower polarizer 22, respectively.
  • the liquid crystal molecules 27 are at an angle of 45 degrees between the tilting direction and the optical axis of the lower polarizer 24 under the action of the electric field of the first strip electrode region 2910, and the liquid crystal molecules 27 (in this application example)
  • the liquid crystal molecules 27 are vertically aligned liquid crystal molecules and contain a polymer compound, that is, the liquid crystal molecules 27 are vertical alignment liquid crystal molecules containing a polymer
  • the tilting direction is at an angle of 45 degrees with the lower polarizer 24, the light is The highest penetration rate ensures further light penetration.
  • the spacing distance between all adjacent first strip electrode regions 2910 and the second strip electrode region 2810 may be set to be equal or unequal, that is, as shown in FIG.
  • the separation distances d1, d2, and d3 between the electrode region 2910 and the second strip electrode region 2810 may be equal or unequal.
  • the interval between the first strip electrode region 2910 and the second strip electrode region 2810 is set to be unequal as an example: the pixel electrode 291 includes a data line region (not labeled) on the side and a scan line region ( Not shown) and the central display area, the distance between the adjacent first strip electrode region 2910 and the second strip electrode region 2810 corresponding to the data line region and/or the scan line region is smaller than the display region corresponding setting The distance between the adjacent first strip electrode regions 2910 and the second strip electrode regions 2810. Since the data line area and the scan line area are substantially non-display areas of the pixel electrode 291, and the non-display area has little effect on the display of the liquid crystal display panel in light transmittance, a dense first line is disposed in the non-display area.
  • the electrode region 2910 can improve the response speed of the liquid crystal molecules 27 driven by the non-display region, and the non-display region can affect the response speed of the liquid crystal molecules 27 driven by the entire pixel electrode 291, thereby improving the entire pixel electrode to some extent.
  • 291 corresponds to the response speed of the driven liquid crystal molecules 27.
  • the PVA type display panel since the PVA type display panel does not need to increase the voltage or increase the exposure time to obtain a large tilt angle of the liquid crystal molecules 27, it is possible to avoid the insufficient response speed of the liquid crystal molecules, and also improve the contrast and reduce the contrast. The time required for the curing process of the liquid crystal molecules further increases the production efficiency.
  • the liquid crystal display panel may also be MVA (Multi-domain Vertical) Alignment, multi-quadrant vertical alignment technology type display panel,
  • the present invention also provides a liquid crystal display device.
  • the liquid crystal display device of the embodiment of the invention includes a backlight module and the liquid crystal display panel of any of the above embodiments.
  • the backlight module provides illumination for the liquid crystal display panel.
  • the upper and lower engraved wave plates are respectively arranged on the upper and lower polarizers, and the slow axis of the upper engraved wave plate and the slow axis of the lower engraved wave plate are respectively combined with the upper polarizer or the lower polarized light.
  • the optical axes of the sheets are at an angle of 45 degrees, and the slow axis of the upper engraved wave plate and the slow axis of the lower engraved wave plate are perpendicular to each other, and the incident light passes through the etched wave plate, the liquid crystal molecules, and the lower engraved wave plate. After the polarization, it can be emitted in parallel with the direction of the original light, and the response speed of the liquid crystal can be improved while ensuring the light transmittance.
  • liquid crystal display panel and the liquid crystal display device of the present invention have the following advantages:
  • the response speed of the liquid crystal molecules is fast: by setting the upper and lower engraved wave plates on the inner side of the upper and lower polarizers, the liquid crystal molecules can maintain the optical characteristics of fast response;
  • the exposure curing process does not need to increase the voltage or increase the exposure time to obtain a large pretilt angle, avoiding the insufficient response speed, and can greatly enhance the liquid crystal display panel. Contrast, as well as reducing the time required for the curing process of liquid crystal molecules to increase production efficiency.
  • the design of the electrode spacing can be made in the pixel electrode, and the degree of freedom of design can be improved under the premise that the transmittance and the response speed of the liquid crystal molecules can be balanced.

Abstract

一种PSVA型液晶显示面板、液晶显示面板及液晶显示装置，液晶显示面板包括相对设置的上、下基板（11、12），上、下基板（11、12）间填充有液晶，液晶中的液晶分子（17）为垂直取向，上、下基板（11、12）的表面设置上、下偏光片（13、14），上、下偏光片（13、14）的光轴相互垂直，上偏光片（13）邻近下偏光片（14）一侧的表面设置有上刻波片（15），下偏光片（14）邻近上偏光片（13）一侧的表面设置有下刻波片（16），上、下刻波片（15、16）的慢轴分别与上偏光片（13）或下偏光片（14）的光轴之间呈45度夹角，上、下刻波片（15、16）的慢轴相互垂直，该液晶面板具有较高的光线穿透率，提高了液晶分子（17）的响应速度。

Description

PSVA型液晶显示面板、液晶显示面板及液晶显示装置
【技术领域】
本发明涉及显示技术领域，特别是涉及一种PSVA型液晶显示面板、液晶显示面板及液晶显示装置。
【背景技术】
液晶显示技术领域中，一般的VA Cell（Vertical Alignment Cell，垂直取向面板）设计，必须通过像素ITO pattern(Indium Tin Oxides pattern，电极图案) 标准设计规范液晶分子的倾倒方向（指与偏光片光轴方向平行的方向）。采用该像素电极图案标准设计规范液晶分子的倾倒方向，能够避免液晶分子在驱动过程中因为电压切换液晶分子倾倒方向的偏差而造成响应速度明显过慢的现象发生。
而像素电极图案的设计需要在ITO电极上形成规范电场分布的条状电极区，条状电极区与偏光片水平光轴之间呈45度夹角。其中，在进行像素电极图案设计时，条状电极区越多越密集，越能保证电场的正确分布，能够确保液晶分子响应速度较快。但是，相对的条状电极区之间的区域也意味着没有电场来驱动该区域的液晶分子的转动，造成光线在此区域的穿透率下降。
PSVA（Polymer Stabilization Vertical Alignment，聚合物稳定对齐技术）型、PVA（Patterned Vertical Alignment，图像垂直调整技术）型液晶显示器均属于VA型液晶显示器。举例而言，结合图1-图4，PSVA型液晶显示器中的像素电极图案（如图1）或PVA型液晶显示器中的像素电极图案（如图2），其ITO pitch（条状电极区之间的间距）如果太大，即如图1中，相邻两个条状电极区100之间，或者如图2中，相邻的第一条状电极区200与第二条状电极区300之间，液晶分子的动态响应速度会变慢，而结合Over driving（过驱动技术）的驱动则会使得响应速度产生under shooting（负冲电压，如图3所示）或over shooting（过冲电压，如图4所示）的现象。该现象的出现是因为垂直取向型液晶显示器的液晶分子在驱动行为上，由于对应条状电极区之间的液晶分子受到上下电极电场以及受到流量效应影响导致时间点延迟，从而造成液晶分子转动角度上未能即时保持与偏光片光轴之间呈45度夹角的状态，需要花费较多的时间来实现角度旋转达到与偏光片光轴之间呈45度夹角的正确状态。
如何在确保较高的光线穿透率的同时，提高液晶的响应速度是当前本领域的研究方向之一。
【发明内容】
本发明主要解决的技术问题是提供一种PSVA型液晶显示面板、液晶显示面板及液晶显示装置，能够在确保较高的光线穿透率的同时，提高液晶分子的响应速度。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种PSVA 型液晶显示面板，相对设置的上基板和下基板，上基板和下基板之间填充有液晶，液晶中的液晶分子为垂直取向；上基板的表面设置有上偏光片，下基板的表面设置有下偏光片，并且上偏光片的光轴与下偏光片的光轴相互垂直；上偏光片邻近下偏光片一侧的表面设置有上刻波片，下偏光片邻近上偏光片一侧的表面设置有下刻波片；其中，上刻波片的慢轴、下刻波片的慢轴分别与上偏光片或下偏光片的光轴之间呈45度夹角，且上刻波片的慢轴与下刻波片的慢轴相互垂直；下刻波片邻近上刻波片一侧的表面对应设置有像素电极，像素电极均包括多个平行间隔设置的条状电极区，相邻条状电极区之间的间隔距离均大于或等于10微米；并且，条状电极区与下偏光片的光轴之间呈45度夹角，全部的相邻条状电极区之间的间隔距离相等或者不等。
其中，像素电极包括数据线区域、扫描线区域以及显示区域，数据线区域和/或扫描线区域的相邻条状电极区之间的间隔距离小于显示区域的相邻条状电极区之间的间隔距离。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种液晶显示面板，包括：相对设置的上基板和下基板，上基板和下基板之间填充有液晶，液晶中的液晶分子为垂直取向；上基板的表面设置有上偏光片，下基板的表面设置有下偏光片，并且上偏光片的光轴与下偏光片的光轴相互垂直；上偏光片邻近下偏光片一侧的表面设置有上刻波片，下偏光片邻近上偏光片一侧的表面设置有下刻波片；其中，上刻波片的慢轴、下刻波片的慢轴分别与上偏光片或下偏光片的光轴之间呈45度夹角，且上刻波片的慢轴与下刻波片的慢轴相互垂直。
其中，液晶显示面板是PSVA型显示面板，下刻波片邻近上刻波片一侧的表面对应设置有像素电极，像素电极均包括多个平行间隔设置的条状电极区，相邻条状电极区之间的间隔距离均大于或等于10微米。
其中，条状电极区与下偏光片的光轴之间呈45度夹角。
其中，全部的相邻条状电极区之间的间隔距离相等或者不等。
其中，像素电极包括数据线区域、扫描线区域以及显示区域，数据线区域和/或扫描线区域的相邻条状电极区之间的间隔距离小于显示区域的相邻条状电极区之间的间隔距离。
其中，液晶显示面板是PVA型显示面板，上刻波片邻近下刻波片一侧的表面设置有彩色滤光层，下刻波片邻近上刻波片一侧的表面设置有薄膜晶体管层，其中彩色滤光层邻近薄膜晶体管层一侧的表面设置有公共电极，薄膜晶体管层邻近彩色滤光层一侧的表面对应设置有像素电极，像素电极包括多个平行间隔设置的第一条状电极区，公共电极包括对应第一条状电极区设置的第二条状电极区，在同一投影平面上，第一条状电极区和第二条状电极区平行间隔设置，并且相邻第一条状电极区与第二条状电极区之间的间隔距离均大于或等于35微米。
其中，第一条状电极区、第二条状电极区分别与上偏光片或下偏光片的光轴之间呈45度夹角。
其中，全部的相邻第一条状电极区和第二条状电极区之间的间隔距离相等或者不等。
其中，像素电极包括数据线区域、扫描线区域以及显示区域，数据线区域和扫描线区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离小于显示区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离；或者，数据线区域或扫描线区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离小于显示区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离。
为解决上述技术问题，本发明采用的又一个技术方案是：提供一种液晶显示装置，包括液晶显示面板和为液晶显示面板提供照明的背光模组，液晶显示面板包括：相对设置的上基板和下基板，上基板和下基板之间填充有液晶，液晶中的液晶分子为垂直取向；上基板的表面设置有上偏光片，下基板的表面设置有下偏光片，并且上偏光片的光轴与下偏光片的光轴相互垂直；上偏光片邻近下偏光片一侧的表面设置有上刻波片，下偏光片邻近上偏光片一侧的表面设置有下刻波片；其中，上刻波片的慢轴、下刻波片的慢轴分别与上偏光片或下偏光片的光轴之间呈45度夹角，且上刻波片的慢轴与下刻波片的慢轴相互垂直。
其中，液晶显示面板是PSVA型显示面板，下刻波片邻近上刻波片一侧的表面对应设置有像素电极，像素电极均包括多个平行间隔设置的条状电极区，相邻条状电极区之间的间隔距离均大于或等于10微米。
其中，条状电极区与下偏光片的光轴之间呈45度夹角。
其中，全部的相邻条状电极区之间的间隔距离相等或者不等。
其中，像素电极包括数据线区域、扫描线区域以及显示区域，数据线区域和/或扫描线区域的相邻条状电极区之间的间隔距离小于显示区域的相邻条状电极区之间的间隔距离。
其中，液晶显示面板是PVA型显示面板，上刻波片邻近下刻波片一侧的表面设置有彩色滤光层，下刻波片邻近上刻波片一侧的表面设置有薄膜晶体管层，其中彩色滤光层邻近薄膜晶体管层一侧的表面设置有公共电极，薄膜晶体管层邻近彩色滤光层一侧的表面对应设置有像素电极，像素电极包括多个平行间隔设置的第一条状电极区，公共电极包括对应第一条状电极区设置的第二条状电极区，在同一投影平面上，第一条状电极区和第二条状电极区平行间隔设置，并且相邻第一条状电极区与第二条状电极区之间的间隔距离均大于或等于35微米。
其中，第一条状电极区、第二条状电极区分别与上偏光片或下偏光片的光轴之间呈45度夹角。
其中，全部的相邻第一条状电极区和第二条状电极区之间的间隔距离相等或者不等。
其中，像素电极包括数据线区域、扫描线区域以及显示区域；
数据线区域和扫描线区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离小于显示区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离；或者，数据线区域或扫描线区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离小于显示区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离。
本发明的有益效果是：区别于现有技术的情况，本发明PSVA型液晶显示面板、液晶显示面板及液晶显示装置，通过在上、下偏光片上分别对应设置上、下刻波片，并且，上刻波片的慢轴、下刻波片的慢轴分别与上偏光片或下偏光片的光轴之间呈45度夹角，且所述上刻波片的慢轴与下刻波片的慢轴相互垂直，入射的光线经上刻波片、液晶分子以及下刻波片的极化作用后，能够平行原光线方向出射，能够在确保光线穿透率的同时，提高液晶的响应速度。
【附图说明】
图1是现有技术PSVA型液晶显示面板的像素电极图案的结构示意图；
图2是现有技术PVA型液晶显示面板的像素电极图案的结构示意图；
图3是一种对VA型显示面板的电极施加电压时液晶分子的响应曲线示意图；
图4是另一种对VA型显示面板的电极施加电压时液晶分子的响应曲线示意图；
图5是本发明液晶显示面板第一实施例的结构示意图；
图6是图5所示液晶显示面板的上偏光片、下偏光片、上刻波片以及下刻波片之间光轴的关系示意图；
图7是图5所示液晶显示面板实施例的工作原理图；
图8是图5所示液晶显示面板实施例中施加电压时液晶分子的响应曲线示意图；
图9是本发明液晶显示面板第二实施例的像素电极结构示意图；
图10是本发明液晶显示面板第三实施例的结构示意图；
图11是图10所示PVA型显示面板的像素电极结构示意图。
【具体实施方式】
下面结合附图和实施例对本发明进行详细说明。
参阅图5，图5是本发明液晶显示面板第一实施例的结构示意图。本发明液晶显示面板第一实施例包括：上基板11、下基板12、上偏光片13、下偏光片14、上刻波片15以及下刻波片16。
其中，上基板11和下基板12相对设置，上基板11与下基板12之间填充有垂直取向的包含液晶分子17的液晶层，其中液晶分子17是VA液晶分子。上偏光片13设置于上基板11的表面，下偏光片14设置于下基板12的表面，且该上偏光片13与下偏光片14的光轴相互垂直。进一步地，上刻波片15设置于上偏光片13邻近下偏光片14一侧的表面，下刻波片16设置于下偏光片14邻近上偏光片13一侧的表面，上刻波片15和下刻波片16均是四分之一λ相位波片。
值得注意的是，上刻波片15的慢轴、下刻波片16的慢轴分别与上偏光片13或下偏光片14的光轴之间呈45度夹角，且上刻波片15的慢轴与下刻波片16的慢轴相互垂直（如图6所示）。
结合图7，本发明实施例的工作原理如下：
光线入射至下偏光片14后，经下偏光片14的偏光作用形成下偏线偏振光，该下偏线偏振光经过下刻波片16的作用后产生圆偏振光，如图7所示，该圆偏振光为左圆极化偏振光，左圆极化偏振光经过液晶分子17时，虽然液晶分子17对该左圆极化偏振光进行相位反转，但是也仅是使得左圆极化偏振光通过液晶分子17后成为右圆极化偏振光，依然为圆偏振光；然后，该右圆极化偏振光通过上刻波片15，经上刻波片15的偏光作用后由圆偏振光还原成线性偏振光，即产生偏振方向与上偏光片13的光轴平行的上偏线偏振光，最后通过上偏光片13光轴出光。因此不管液晶分子的倾倒方向是否与偏光片（上偏光片13或下偏光片14）的光轴之间呈45度夹角，光学表现上亮度均维持与偏光片光轴之间呈45度夹角相同，亦因此液晶分子17的动态响应不会有过冲电压或负冲电压现象，相应的液晶分子17的响应曲线如图8所示，此处不做一一赘述。
本发明实施例，通过在上偏光片13、下偏光片14上分别对应设置上刻波片15、下刻波片16，并且，上刻波片15的慢轴、下刻波片16的慢轴分别与上偏光片13或下偏光片14的光轴之间呈45度夹角，且上刻波片15的慢轴与下刻波片16的慢轴相互垂直，入射的光线经上刻波片15、液晶分子17以及下刻波片16的极化作用后，能够平行原光线方向出射，能够在确保光线穿透率的同时，提高液晶的响应速度。
参阅图9，图9是本发明液晶显示面板第二实施例的电极结构示意图，并请结合图5。本发明液晶显示面板实施例中，该液晶显示面板是是PSVA型显示面板，下刻波片16邻近上刻波片15一侧的表面对应设置有像素电极40，像素电极40均包括多个平行间隔设置的条状电极区401，相邻条状电极区401之间的间隔距离大于或等于10微米。在一个具体应用中，全部的相邻条状电极区401之间的间隔距离设置为大于或等于10微米，能够确保光线穿透率。而且，该条状电极区401与下偏光片14的光轴呈45度夹角，其相应作用是：液晶分子17在条状电极区401的电场的作用下，其倾倒方向与下偏光片14的光轴之间呈45度夹角。液晶分子17的倾倒方向与下偏光片14之间呈45度夹角时，光线的穿透率最大，能进一步确保较高的光线穿透率。
值得注意的是，全部的相邻条状电极区401之间的间隔距离可以设置为相等或者不等。即如图9所示，相邻条状电极区401之间的间隔d1、d2以及d3可以相等或者不等。以相邻条状电极区401之间的间隔距离不等为例进行说明：像素电极40包括位于边侧的数据线区域（未标示）、扫描线区域（未标示）以及位于中央的显示区域（未标示），数据线区域和/或扫描线区域的相邻条状电极区401之间的间隔距离小于显示区域的相邻条状电极区401之间的间隔距离，换言之，数据线区域和扫描线区域可以单独或者同时将其相邻条状电极区401之间的间隔距离设置为小于显示区域的相邻条状电极区401之间的间隔距离。因为数据线区域和扫描线区域其实质为像素电极40的非显示区域，而非显示区域在光线穿透率上对液晶显示面板的显示作用不大，在该非显示区域设置密集的条状电极区401，能够提高非显示区域对应驱动的液晶分子17的响应速度，该非显示区域可以影响整个像素电极40对应驱动的液晶分子17的响应速度，从而能够在一定程度上提高整个像素电极40对应驱动的液晶分子17的响应速度。
参阅图10，图10是本发明液晶显示面板第三实施例的结构示意图，并请结合图11。本发明实施例中，该液晶显示面板是PVA型显示面板，该液晶显示面板包括与本发明液晶显示面板第一实施例结构相同或相似的上基板21、下基板22、上偏光片23、下偏光片24、上刻波片25以及下刻波片26。进一步地，本发明液晶显示面板实施例中，上基板21邻近下刻波片26一侧的表面设置有彩色滤光层28，下基板22邻近上刻波片25一侧的表面设置有薄膜晶体管层29。其中彩色滤光层28邻近薄膜晶体管层29一侧的表面设置有公共电极281，薄膜晶体管层29邻近彩色滤光层28一侧的表面对应设置有像素电极291，像素电极291包括多个平行间隔设置的第一条状电极区2910，公共电极281包括对应第一条状电极区291设置的第二条状电极区2810。其中，在同一投影平面上，第一条状电极区2910和第二条状电极区2810平行间隔设置，相邻第一条状电极区2910与第二条状电极区2810之间的间隔距离均大于或等于35微米，能够确保光线穿透率。并且，第一条状电极区2910、第二条状电极区2810分别与上偏光片21或下偏光片22的光轴之间呈45度夹角。其相应作用是：液晶分子27在第一条状电极区2910的电场的作用下，其倾倒方向与下偏光片24的光轴之间呈45度夹角，液晶分子27（在本应用实施例中，液晶分子27是垂直取向的液晶分子，并且含有polymer化合物，即该液晶分子27是含有聚合物的垂直取向液晶分子）的倾倒方向与下偏光片24之间呈45度夹角时，光线的穿透率最大，能进一步确保光线穿透率。
值得注意的是，全部的相邻第一条状电极区2910和第二条状电极区2810之间的间隔距离可以设置为相等或者不等，即如图11所示，相邻第一条状电极区2910和第二条状电极区2810之间的间隔距离d1、d2以及d3可以相等或者不等。以第一条状电极区2910和第二条状电极区2810之间的间隔距离设置为不等为例进行说明：像素电极291包括位于边侧的数据线区域（未标示）、扫描线区域（未标示）以及位于中央的显示区域，数据线区域和/或扫描线区域对应设置的相邻的第一条状电极区2910与第二条状电极区2810之间的间隔距离小于显示区域对应设置的相邻的第一条状电极区2910与第二条状电极区2810之间的间隔距离。因为数据线区域和扫描线区域其实质为像素电极291的非显示区域，而非显示区域在光线穿透率上对液晶显示面板的显示作用不大，在该非显示区域设置密集的第一条状电极区2910，能够提高非显示区域对应驱动的液晶分子27的响应速度，该非显示区域可以影响整个像素电极291对应驱动的液晶分子27的响应速度，从而能够在一定程度上提高整个像素电极291对应驱动的液晶分子27的响应速度。
另外，在本应用实施例中，因为PVA型显示面板不需要加大电压或增长曝光时间来获得液晶分子27较大的倾倒角度，能够避免液晶分子响应速度不足现象，亦可以提升对比度，以及减少液晶分子的固化制程的所需的时间进而提高生产效率。
上述实施例中，液晶显示面板还可以是MVA（Multi-domain Vertical Alignment，多象限垂直配向技术）型显示面板，
本发明还提供一种液晶显示装置。
本发明实施例液晶显示装置包括背光模组以及上述任一实施例所述的液晶显示面板。该背光模组为液晶显示面板提供照明。
本发明液晶显示装置实施例，通过在上、下偏光片上分别对应设置上、下刻波片，并且，上刻波片的慢轴、下刻波片的慢轴分别与上偏光片或下偏光片的光轴之间呈45度夹角，且所述上刻波片的慢轴与下刻波片的慢轴相互垂直，入射的光线经上刻波片、液晶分子以及下刻波片的极化作用后，能够平行原光线方向出射，能够在确保光线穿透率的同时，提高液晶的响应速度。
综上所述，本发明液晶显示面板及液晶显示装置，具有如下优点：
（1）穿透率较好：因为通过加大电极间的间距，无论在PSVA型、PVA型，还是在MVA型液晶显示面板上均可获得较大的穿透率表现；
（2）液晶分子响应速度快：通过在上、下偏光片内侧分别设置上、下刻波片，液晶分子可以维持快速响应的光学特性表现；
（3）简化制程及对比度提升：对于PSVA型显示面板，其曝光curing制程不需要加大电压或增长曝光时间来获得较大的预倾角，避免响应速度的不足现象，可以大大的提升液晶显示面板对比度，以及减少液晶分子的固化制程所需的时间进而提高生产效率。
（4）设计自由度提高：像素电极内可进行电极间距不等的设计，能够在穿透率及液晶分子响应速度都可兼顾的前提下让设计的自由度提升。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (20)

  1. 一种PSVA型液晶显示面板，其中，包括：
    相对设置的上基板和下基板，所述上基板和下基板之间填充有液晶，所述液晶中的液晶分子为垂直取向；
    所述上基板的表面设置有上偏光片，所述下基板的表面设置有下偏光片，并且所述上偏光片的光轴与下偏光片的光轴相互垂直；
    所述上偏光片邻近下偏光片一侧的表面设置有上刻波片，所述下偏光片邻近上偏光片一侧的表面设置有下刻波片；
    其中，所述上刻波片的慢轴、下刻波片的慢轴分别与上偏光片或下偏光片的光轴之间呈45度夹角，且所述上刻波片的慢轴与下刻波片的慢轴相互垂直；
    所述下刻波片邻近上刻波片一侧的表面对应设置有像素电极，所述像素电极均包括多个平行间隔设置的条状电极区，相邻所述条状电极区之间的间隔距离均大于或等于10微米；
    并且，所述条状电极区与下偏光片的光轴之间呈45度夹角，全部的相邻所述条状电极区之间的间隔距离相等或者不等。
  2. 根据权利要求1所述的PSVA型液晶显示面板，其中，
    所述像素电极包括数据线区域、扫描线区域以及显示区域，所述数据线区域和/或扫描线区域的相邻条状电极区之间的间隔距离小于显示区域的相邻条状电极区之间的间隔距离。
  3. 一种液晶显示面板，其中，包括：
    相对设置的上基板和下基板，所述上基板和下基板之间填充有液晶，所述液晶中的液晶分子为垂直取向；
    所述上基板的表面设置有上偏光片，所述下基板的表面设置有下偏光片，并且所述上偏光片的光轴与下偏光片的光轴相互垂直；
    所述上偏光片邻近下偏光片一侧的表面设置有上刻波片，所述下偏光片邻近上偏光片一侧的表面设置有下刻波片；
    其中，所述上刻波片的慢轴、下刻波片的慢轴分别与上偏光片或下偏光片的光轴之间呈45度夹角，且所述上刻波片的慢轴与下刻波片的慢轴相互垂直。
  4. 根据权利要求3所述的液晶显示面板，其中，
    所述液晶显示面板是PSVA型显示面板，所述下刻波片邻近上刻波片一侧的表面对应设置有像素电极，所述像素电极均包括多个平行间隔设置的条状电极区，相邻所述条状电极区之间的间隔距离均大于或等于10微米。
  5. 根据权利要求4所述的液晶显示面板，其中，
    所述条状电极区与下偏光片的光轴之间呈45度夹角。
  6. 根据权利要求4所述的液晶显示面板，其中，
    全部的相邻所述条状电极区之间的间隔距离相等或者不等。
  7. 根据权利要求6所述的液晶显示面板，其中，
    所述像素电极包括数据线区域、扫描线区域以及显示区域，所述数据线区域和/或扫描线区域的相邻条状电极区之间的间隔距离小于显示区域的相邻条状电极区之间的间隔距离。
  8. 根据权利要求3所述的液晶显示面板，其中，
    所述液晶显示面板是PVA型显示面板，所述上刻波片邻近下刻波片一侧的表面设置有彩色滤光层，所述下刻波片邻近上刻波片一侧的表面设置有薄膜晶体管层，其中所述彩色滤光层邻近薄膜晶体管层一侧的表面设置有公共电极，所述薄膜晶体管层邻近彩色滤光层一侧的表面对应设置有像素电极，所述像素电极包括多个平行间隔设置的第一条状电极区，所述公共电极包括对应第一条状电极区设置的第二条状电极区，在同一投影平面上，所述第一条状电极区和第二条状电极区平行间隔设置，并且相邻所述第一条状电极区与第二条状电极区之间的间隔距离均大于或等于35微米。
  9. 根据权利要求8所述的液晶显示面板，其中，
    所述第一条状电极区、第二条状电极区分别与上偏光片或下偏光片的光轴之间呈45度夹角。
  10. 根据权利要求9所述的液晶显示面板，其中，
    全部的相邻所述第一条状电极区和第二条状电极区之间的间隔距离相等或者不等。
  11. 根据权利要求10所述的液晶显示面板，其中，
    所述像素电极包括数据线区域、扫描线区域以及显示区域；
    所述数据线区域和扫描线区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离小于显示区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离；
    或者，所述数据线区域或扫描线区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离小于显示区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离。
  12. 一种液晶显示装置，包括液晶显示面板和为所述液晶显示面板提供照明的背光模组，其中，所述液晶显示面板包括：
    相对设置的上基板和下基板，所述上基板和下基板之间填充有液晶，所述液晶中的液晶分子为垂直取向；
    所述上基板的表面设置有上偏光片，所述下基板的表面设置有下偏光片，并且所述上偏光片的光轴与下偏光片的光轴相互垂直；
    所述上偏光片邻近下偏光片一侧的表面设置有上刻波片，所述下偏光片邻近上偏光片一侧的表面设置有下刻波片；
    其中，所述上刻波片的慢轴、下刻波片的慢轴分别与上偏光片或下偏光片的光轴之间呈45度夹角，且所述上刻波片的慢轴与下刻波片的慢轴相互垂直。
  13. 根据权利要求12所述的液晶显示装置，其中，
    所述液晶显示面板是PSVA型显示面板，所述下刻波片邻近上刻波片一侧的表面对应设置有像素电极，所述像素电极均包括多个平行间隔设置的条状电极区，相邻所述条状电极区之间的间隔距离均大于或等于10微米。
  14. 根据权利要求13所述的液晶显示装置，其中，
    所述条状电极区与下偏光片的光轴之间呈45度夹角。
  15. 根据权利要求13所述的液晶显示装置，其中，
    全部的相邻所述条状电极区之间的间隔距离相等或者不等。
  16. 根据权利要求15所述的液晶显示装置，其中，
    所述像素电极包括数据线区域、扫描线区域以及显示区域，所述数据线区域和/或扫描线区域的相邻条状电极区之间的间隔距离小于显示区域的相邻条状电极区之间的间隔距离。
  17. 根据权利要求12所述的液晶显示装置，其中，
    所述液晶显示面板是PVA型显示面板，所述上刻波片邻近下刻波片一侧的表面设置有彩色滤光层，所述下刻波片邻近上刻波片一侧的表面设置有薄膜晶体管层，其中所述彩色滤光层邻近薄膜晶体管层一侧的表面设置有公共电极，所述薄膜晶体管层邻近彩色滤光层一侧的表面对应设置有像素电极，所述像素电极包括多个平行间隔设置的第一条状电极区，所述公共电极包括对应第一条状电极区设置的第二条状电极区，在同一投影平面上，所述第一条状电极区和第二条状电极区平行间隔设置，并且相邻所述第一条状电极区与第二条状电极区之间的间隔距离均大于或等于35微米。
  18. 根据权利要求17所述的液晶显示装置，其中，
    所述第一条状电极区、第二条状电极区分别与上偏光片或下偏光片的光轴之间呈45度夹角。
  19. 根据权利要求17所述的液晶显示装置，其中，
    全部的相邻所述第一条状电极区和第二条状电极区之间的间隔距离相等或者不等。
  20. 根据权利要求19所述的液晶显示装置，其中，
    所述像素电极包括数据线区域、扫描线区域以及显示区域；
    所述数据线区域和扫描线区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离小于显示区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离；
    或者，所述数据线区域或扫描线区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离小于显示区域对应设置的相邻的第一条状电极区与第二条状电极区之间的间隔距离。
PCT/CN2012/076709 2012-06-05 2012-06-11 Psva型液晶显示面板、液晶显示面板及液晶显示装置 WO2013181855A1 (zh)

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CN106094367A (zh) * 2016-08-25 2016-11-09 广西钦州天山微电子有限公司 一种va全视角lcd显示器及其制造方法
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