CN104020615A - Liquid crystal display panel and display device - Google Patents
Liquid crystal display panel and display device Download PDFInfo
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- CN104020615A CN104020615A CN201410240542.6A CN201410240542A CN104020615A CN 104020615 A CN104020615 A CN 104020615A CN 201410240542 A CN201410240542 A CN 201410240542A CN 104020615 A CN104020615 A CN 104020615A
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- shaped electric
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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
- G02F1/1343—Electrodes
Abstract
The invention discloses a liquid crystal display panel and a display device in order to shorten the switch-on state response time and the switch-off state response time of the liquid crystal display panel, improve the transmittance of light rays, and improve the display quality of the display device. The liquid crystal display panel comprises a first substrate, a second substrate, a negative liquid crystal layer located between the first substrate and the second substrate, a first public electrode, a first pixel electrode, a second public electrode and a second pixel electrode, wherein the first substrate and the second substrate are oppositely arranged, the first public electrode and the first pixel electrode are located on one side, close to the negative liquid crystal layer, of the first substrate and insulated from each other, the second public electrode and the second pixel electrode are located on the second substrate and insulated from each other, at least one of the first public electrode and the first pixel electrode is a first slit electrode comprising a plurality of strip-shaped electrodes, at least one of the second public electrode and the second pixel electrode is a second slit electrode comprising a plurality of strip-shaped electrodes, and a first set included angle is formed between the extending direction of the strip-shaped electrodes in the first slit electrode and the extending direction of the strip-shaped electrodes in the second slit electrode.
Description
Technical field
The present invention relates to liquid crystal display (Liquid Crystal Display, LCD) technical field, relate in particular to a kind of display panels and display device.
Background technology
At present, TFT-LCD (Thin Film Transistor Liquid Crystal Display, Thin Film Transistor-LCD) display mode mainly contains TN (Twisted Nematic, twisted-nematic) pattern, VA (Vertical Alignment, vertical orientated) pattern, IPS (In-Plane-Switching, in-plane conversion) pattern and ADS (ADvanced Super Dimension Switch, senior super dimension field switch technology) pattern etc.Senior super dimension field switch technology can improve the picture quality of TFT-LCD product, has high resolving power, high permeability, low-power consumption, wide visual angle, high aperture, low aberration, without advantages such as water of compaction ripples (push Mura).For different application, the improvement technology of ADS technology has high permeability I-ADS technology, high aperture H-ADS and high resolving power S-ADS technology etc.
The response speed of the liquid crystal display of above-mentioned either type is relevant with the OFF state response time with the ON state response time of pixel, and ON state response time and OFF state response time are shorter, and response speed is faster.
The ON state response time is relevant with the thickness of the liquid crystal coefficient of viscosity and liquid crystal layer with the OFF state response time, and the coefficient of viscosity is larger, and ON state response time and OFF state response time are longer, and the thickness of liquid crystal layer is thicker, and ON state response time and OFF state response time are longer.
Prior art, the liquid crystal molecule in liquid crystal display is positivity liquid crystal, the direction of the long axis electric field line of positivity liquid crystal is arranged.When the electric field in liquid crystal display is transverse electric field, liquid crystal molecule is along the direction of electric field line with respect to substrate oblique arrangement, and angle of inclination different light rays transmitance is different.
In order to reduce ON state response time and the OFF state response time of liquid crystal molecule, prior art is provided with public electrode and pixel electrode on the first substrate of liquid crystal layer both sides and second substrate, between pixel electrode on each substrate and public electrode, produce transverse electric field, control liquid crystal molecule and arrange along transverse electric field direction, liquid crystal molecule can be deflected to transverse electric field direction by vertical direction (inceptive direction).And, prior art, public electrode on first substrate (or pixel electrode) is gap electrode with the pixel electrode (or public electrode) on second substrate, gap electrode comprises a plurality of strip shaped electric poles, strip shaped electric poles on first substrate and the strip shaped electric poles on second substrate are parallel to each other, overlapping area between the two is larger, and vertical electric field intensity is larger, and light penetration is lower.Because the inceptive direction of liquid crystal molecule is vertical direction, again due to the strip shaped electric poles on first substrate and the vertical electric field intensity between the strip shaped electric poles on second substrate larger, liquid crystal molecule deflection under the effect of horizontal component of electric field and vertical electric field, vertical electric field can suppress liquid crystal molecule along transverse electric field deflection, to reducing ON state response time and the OFF state response time of liquid crystal molecule, has a negative impact.
Summary of the invention
The embodiment of the present invention provides a kind of display panels and display device, in order to reduce ON state response time and the OFF state response time of display panels, improves the transmitance of light, thereby improves the display quality of display device.
A kind of display panels that the embodiment of the present invention provides, comprising:
The first substrate being oppositely arranged and second substrate, and the negative liquid crystal layer between first substrate and second substrate;
Also comprise: the first public electrode and the first pixel electrode that are positioned at close described negative liquid crystal layer one side mutually insulated on described first substrate;
Be positioned at the second public electrode and second pixel electrode of close described negative liquid crystal layer one side mutually insulated on described second substrate;
Described the first public electrode and the first pixel electrode are one of at least the first gap electrode that comprises a plurality of strip shaped electric poles;
Described the second public electrode and the second pixel electrode are one of at least the second gap electrode that comprises a plurality of strip shaped electric poles;
In described the first gap electrode, in the bearing of trend of strip shaped electric poles and the second gap electrode, the bearing of trend of strip shaped electric poles has the first setting angle.
Preferably, described the first setting angle is 70～90 °.
Preferably, also comprise:
Be positioned at the first oriented layer contacting with described negative liquid crystal layer on described first substrate;
Be positioned at the second oriented layer contacting with described negative liquid crystal layer on described second substrate;
In the frictional direction of described the first oriented layer and described the first gap electrode or the second strip shaped electric poles the bearing of trend of strip shaped electric poles or between angle β meet following formula:
β＝(α/2)±5°。
Preferably, described the first setting angle is 90 °, and the angle in the frictional direction of described the first oriented layer and described the first gap electrode between strip shaped electric poles is 45 °.
Preferably, described the first oriented layer is identical with the frictional direction of the second oriented layer.
Preferably, also comprise:
Be positioned on described first substrate the first polaroid away from described negative liquid crystal layer one side;
Be positioned on described second substrate the second polaroid away from described negative liquid crystal layer one side;
The light transmission shaft of described the first polaroid is identical with the frictional direction of described the first oriented layer;
The light transmission shaft of described the second polaroid is mutually vertical with the light transmission shaft of described the first polaroid.
Preferably, described in described the first public electrode and the first pixel electrode are respectively, comprise the first gap electrode of a plurality of strip shaped electric poles, and the two arranges with layer;
The second gap electrode that comprises a plurality of strip shaped electric poles described in described the second public electrode and the second pixel electrode are respectively, and the two arranges with layer;
The first public electrode is consistent with the strip shaped electric poles bearing of trend in the first pixel electrode, and is spaced;
The second public electrode is consistent with the strip shaped electric poles bearing of trend in the second pixel electrode, and is spaced.
Preferably, described the first public electrode is plane-shape electrode, and described the first pixel electrode comprises the first gap electrode of a plurality of strip shaped electric poles described in being, and by the first insulation course, insulate mutually between the two; Described the second public electrode is plane-shape electrode, and described the second pixel electrode comprises the second gap electrode of a plurality of strip shaped electric poles described in being, and by the second insulation course, insulate mutually between the two;
Or
Described the first pixel electrode is plane-shape electrode, and described the first public electrode comprises the first gap electrode of a plurality of strip shaped electric poles described in being, and by the first insulation course, insulate mutually between the two; Described the second pixel electrode is plane-shape electrode, and described the second public electrode comprises the second gap electrode of a plurality of strip shaped electric poles described in being, and by the second insulation course, insulate mutually between the two.
Preferably, described in described the first public electrode and the first pixel electrode are respectively, comprise the first gap electrode of a plurality of strip shaped electric poles, and the two arranges with layer; The first public electrode is consistent with the strip shaped electric poles bearing of trend in the first pixel electrode, and is spaced;
Described the second public electrode is plane-shape electrode, and described the second pixel electrode comprises the second gap electrode of a plurality of strip shaped electric poles described in being, and by the second insulation course, insulate mutually between the two; Or described the second pixel electrode is plane-shape electrode, described the second public electrode comprises the second gap electrode of a plurality of strip shaped electric poles described in being, and by the second insulation course, insulate mutually between the two.
The embodiment of the present invention also provides a kind of display device, comprises the display panels of described either type.
In sum, in display panels of the present invention, be filled with negative liquid crystal molecule, negative liquid crystal molecule deflects acting in water surface face of transverse electric field, to change the transmitance of light, the deflection of liquid crystal molecule is only subject to the impact of electric field level component, the electric field of vertical component to liquid crystal molecule the deflection in surface level without any contribution.The OFF state response time τ of display panels
offwith ON state response time τ
onbe not subject to the electric field influence of the vertical component between first substrate and second substrate.And, the bearing of trend of the strip shaped electric poles in above-mentioned the first gap electrode of the present invention and the bearing of trend of the strip shaped electric poles in the second gap electrode have the first setting angle α, non-parallel setting between the two, therefore, between the two overlapping is less, and the transmitance of light is higher.In addition, the present invention is owing to being provided with public electrode and pixel electrode on first substrate and second substrate, liquid crystal layer deflection under the first electric field corresponding to first substrate and the second electric field corresponding to second substrate, be equivalent to and reduced thickness of liquid crystal box, thickness of liquid crystal box is become original 1/2nd, reduced display panels OFF state response time τ
offwith ON state response time τ
on, effectively improve the response speed of liquid crystal molecule, improved the display quality of image.
Accompanying drawing explanation
Fig. 1 for the embodiment of the present invention provide do not apply voltage time one of display panels schematic cross-section;
The the first gap electrode structural representation that comprises a plurality of strip shaped electric poles that Fig. 2 provides for the embodiment of the present invention;
Strip shaped electric poles perspective view at grade in strip shaped electric poles and the second public electrode in the first pixel electrode that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is that the display panels shown in Fig. 1 applies the structural representation after electric field;
Fig. 5 for the embodiment of the present invention provide do not apply voltage time display panels schematic cross-section two;
Fig. 6 is the second substrate shown in Fig. 5 and upper structure and the enlarged diagram of liquid crystal molecule distribution around;
Fig. 7 is the first substrate shown in Fig. 5 and upper structure and the enlarged diagram of liquid crystal molecule distribution around;
Fig. 8 is second substrate and upper structure and the enlarged diagram of liquid crystal molecule distribution around after electric field that apply shown in Fig. 6;
Fig. 9 is first substrate and upper structure and the enlarged diagram of liquid crystal molecule distribution around after electric field that apply shown in Fig. 7;
Figure 10 for the embodiment of the present invention provide do not apply voltage time display panels schematic cross-section three;
The first polaroid that Figure 11 provides for the embodiment of the present invention and the structural representation of the second polaroid;
The second pixel electrode and the second public electrode structural representation on the second substrate that Figure 12 provides for the embodiment of the present invention;
Figure 13 for the embodiment of the present invention provide do not apply voltage time display panels schematic cross-section four;
Light penetration and elapsed-time standards t after the display panels simulation that the comparative example that Figure 14 provides for the embodiment of the present invention and embodiment provide are related to schematic diagram.
Embodiment
The embodiment of the present invention provides a kind of display panels and display device, in order to reduce ON state response time and the OFF state response time of display panels, improves the transmitance of light, thereby improves the display quality of display device.
Referring to Fig. 1, the embodiment of the present invention provides a kind of novel display panels, comprising:
The first substrate 1 being oppositely arranged and second substrate 2, and the negative liquid crystal layer 3 between first substrate 1 and second substrate 2;
Also comprise: the first public electrode 12 and the first pixel electrode 11 that are positioned at close negative liquid crystal layer 3 one side mutually insulateds on first substrate 1;
Be positioned at the second public electrode 22 and second pixel electrode 21 of close negative liquid crystal layer 3 one side mutually insulateds on second substrate 2;
The first public electrode 12 and the first pixel electrode 11 are one of at least the first gap electrode that comprises a plurality of strip shaped electric poles 111 as shown in Figure 2; The second public electrode 22 and the second pixel electrode 21 are one of at least for being similar to the second gap electrode that comprises a plurality of strip shaped electric poles shown in Fig. 2.
The bearing of trend of the strip shaped electric poles in the bearing of trend of the strip shaped electric poles in the first gap electrode and the second gap electrode has the first setting angle α.Referring to Fig. 3, be in the first pixel electrode 11 in strip shaped electric poles 111 and the second public electrode 22 strip shaped electric poles 111 in the perspective view of same plane (first substrate or second substrate place plane).
The characteristic of negative liquid crystal layer of the present invention has determined the direction distribution of its minor axis along electric field line, and the direction that long axis is vertical with electric field line distributes.
When Fig. 1 is display panels no power, the initial arrangement state of liquid crystal molecule and Electric Field Distribution state.As shown in Figure 1, during display panels no power, the initial arrangement direction of the liquid crystal molecule in negative liquid crystal layer 3 is parallel with first substrate 1 or second substrate 2, and the major axis of the liquid crystal molecule in negative liquid crystal layer 3 is parallel to first substrate 1 or second substrate 2 is arranged in parallel.Liquid crystal layer 3 regions are without Electric Field Distribution.
Referring to Fig. 4, for the display panels shown in Fig. 1 is when switching on, Electric Field Distribution and liquid crystal molecule view.Curve with arrow in Fig. 4 is electric field line.As shown in Figure 4, between the first pixel electrode 11 on first substrate 1 and the first public electrode 12, produce transverse electric field.Between the second pixel electrode 21 on second substrate 2 and the second public electrode 22, produce transverse electric field.
The OFF state response time τ of display panels
offwith ON state response time τ
onby formula (1-1) and formula (1-2), determined respectively;
γ
1for the liquid crystal coefficient of viscosity, d is thickness of liquid crystal box, and K is liquid crystal molecule elastic constant, and ε is liquid crystal specific inductive capacity, V
onfor the voltage applying between pixel electrode and public electrode, V
ththreshold voltage for display panels unlatching.From formula (1-1) and formula (1-2), by reducing thickness of liquid crystal box d, reduce coefficient of viscosity γ
1, increase V
on, increase the response speed that the several parameters of DIELECTRIC CONSTANT ε one of at least can improve liquid crystal molecule.The present invention by being provided with public electrode and pixel electrode on first substrate and second substrate, between public electrode on same substrate and pixel electrode, produce transverse electric field, and adopt negative liquid crystal molecule, be equivalent to reduction liquid crystal cell thick, improve ON state response speed and the OFF state response speed of liquid crystal molecule.
In addition, owing to being filled with negative liquid crystal molecule in display panels of the present invention, the display panels of negative liquid crystal molecular pattern, its principle of work is different from the display panels of positivity mode liquid crystal molecule.Particularly, liquid crystal molecule deflects acting in water surface face of the transverse electric field shown in Fig. 4, to change the transmitance of light, the deflection of liquid crystal molecule is only subject to the impact of electric field level component, and to liquid crystal molecule, the deflection in surface level has no effect the electric field of vertical component.The OFF state response time τ of display panels
offwith ON state response time τ
onbe not subject to the electric field influence of the vertical component between first substrate and second substrate.
And, the bearing of trend of the strip shaped electric poles in above-mentioned the first gap electrode of the present invention and the bearing of trend of the strip shaped electric poles in the second gap electrode have the first setting angle α, non-parallel setting between the two, therefore, between the two over against overlapping less, the longitudinal electric field intensity between first substrate and second substrate reduces, negative liquid crystal molecule shading degree reduces, improve the transmitance of display panels light, improved the display quality of image.
Preferably, in the display panels that above-described embodiment provides, it is 70～90 ° that first between the bearing of trend of the strip shaped electric poles in the bearing of trend of the strip shaped electric poles in the first gap electrode and the second gap electrode set angle.
When the setting angle between the strip shaped electric poles in the strip shaped electric poles in the first gap electrode and the second gap electrode is 90 °, vertical overlapping the minimum of the two, longitudinal electric field intensity between first substrate and second substrate is minimum, negative liquid crystal molecule shading degree is minimum, the transmitance of light is higher, and the initial orientation of the liquid crystal molecule of the display panels that above-described embodiment provides is orientated by the oriented layer being arranged on first substrate and second substrate.
Wherein a kind of preferably embodiment is:
Referring to Fig. 5, on the basis of the display panels shown in Fig. 1, further comprise:
Be positioned at the first oriented layer 13 contacting with negative liquid crystal layer 3 on first substrate 1;
Be positioned at the second oriented layer 23 contacting with negative liquid crystal layer 3 on second substrate 2.
Fig. 6 and Fig. 7 are respectively the second substrate 2 shown in Fig. 5 and upper structure and the enlarged diagram of liquid crystal molecule distribution around, and the first substrate shown in Fig. 51 and upper structure and the enlarged diagram of liquid crystal molecule distribution around.
Preferably, in the frictional direction of described the first oriented layer and described the first gap electrode or the second strip shaped electric poles the bearing of trend of strip shaped electric poles or between angle β meet following formula (1-3):
β＝(α/2)±5° (1-3)
Described formula (1-3) β=(α/2) ± 5 ° can be understood as, β is the arbitrary value within the scope of (α/2)-5 ° to (α/2)+5 °, comprising β=(α/2)-5 °, β=α/2 and β=(α/2)+5 ° etc.
Preferably, described the first setting angle is α=90 °, angle in the frictional direction of described the first oriented layer and described the first gap electrode between strip shaped electric poles is 45 °, and in the frictional direction of described the second oriented layer and described the second gap electrode, the angle between strip shaped electric poles is 45 °.
Referring to Fig. 6, preferably, the angle β in the frictional direction (as shown by arrows) of the second oriented layer 23 on second substrate 2 and the second gap electrode between strip shaped electric poles 111 is 35～45 °.Referring to Fig. 7, the angle γ in the frictional direction (as the dotted line arrows) of the first oriented layer 13 on first substrate 1 and the first gap electrode between strip shaped electric poles 111 is 35～45 °.
Preferably, in the frictional direction of described the first oriented layer and described the first gap electrode, the angle between strip shaped electric poles is 45 °; Angle in the frictional direction of described the second oriented layer and described the second gap electrode between strip shaped electric poles is 45 °.Liquid crystal molecule is arranged according to frictional direction, and this orientation is initial orientation.
Preferably, the first oriented layer 13 is identical with the frictional direction of the second oriented layer 23.As shown in Figure 1, the initial arrangement direction of liquid crystal molecule is identical.
When the pixel electrode on first substrate and second substrate and public electrode apply voltage, the deflection situation of the electric field of formation and liquid crystal molecule as shown in Figure 8 and Figure 9.
For the strip shaped electric poles 111 of the second public electrode shown in Fig. 6 and the strip shaped electric poles 111 of the second pixel electrode apply voltage, between the two, form transverse electric field.The minor axis of liquid crystal molecule is parallel with the direction of electric field line, and the arrangement of liquid crystal molecule as shown in Figure 8.
For the strip shaped electric poles 111 of the first public electrode shown in Fig. 7 and the strip shaped electric poles 111 of the first pixel electrode apply voltage, between the two, form transverse electric field.The minor axis of liquid crystal molecule is parallel with the direction of electric field line, and the arrangement of liquid crystal molecule as shown in Figure 9.
Strip shaped electric poles shown in Fig. 8 is mutually vertical with the strip shaped electric poles shown in Fig. 9, and the electric field projecting direction shown in Fig. 8 is mutually vertical with the electric field projecting direction shown in Fig. 9.The long axis direction of the liquid crystal molecule shown in Fig. 8 is vertical with the long axis direction of the liquid crystal molecule shown in Fig. 9.Therefore,, when display panels applies electric field, the arrangement of liquid crystal molecule as shown in Figure 4.
Angle in the frictional direction of described the first oriented layer and described the first gap electrode between strip shaped electric poles is 45 °, when the angle in the frictional direction of described the second oriented layer and described the second gap electrode between strip shaped electric poles is 45 °, and the voltage between the first pixel electrode and the first public electrode is when voltage between the second pixel electrode and the second public electrode equates, the compare frictional direction of arbitrary oriented layer of near liquid crystal molecule first substrate and near liquid crystal deflecting element angle second substrate equates, the transmitance of light is consistent, image display effect is better.
Referring to Figure 10, further, on the basis of the structure of liquid crystal display panel shown in Fig. 5, also comprise:
Be positioned on first substrate 1 the first polaroid 14 away from negative liquid crystal layer 3 one sides;
Be positioned on second substrate 2 the second polaroid 24 away from negative liquid crystal layer 3 one sides;
The light transmission shaft of the first polaroid 14 is identical with the frictional direction of the first oriented layer;
The light transmission shaft of the second polaroid 24 is mutually vertical with the light transmission shaft of the first polaroid 14.
Referring to Figure 11, be the perspective view of the first polaroid 14 and the second polaroid 24, arrow direction is light transmission shaft direction.When the light inlet side incident of light backlight from display panels, after the second polaroid 24, become the polarization direction linearly polarized light parallel with the second polaroid 24 light transmission shafts, after the display panels that applies electric field shown in Fig. 4,90 ° of the phase changes of linearly polarized light, the polarization direction of linearly polarized light is now parallel with the light transmission shaft of the first polaroid 14.Light sees through smoothly described first substrate and shines bright dipping side.
The display panels that above-mentioned either type provides, the first public electrode 12 and the first pixel electrode 11 one of at least comprise the first gap electrode of a plurality of strip shaped electric poles 111; The second public electrode 22 and the second pixel electrode 21 one of at least comprise the second gap electrode of a plurality of strip shaped electric poles.
Particularly, display panels comprises following several embodiment according to the different structure of public electrode and pixel electrode.
Embodiment one:
On the basis of the display panels providing at above-mentioned arbitrary embodiment, further, as shown in Figure 2, the first public electrode 12 and the first pixel electrode 11 are respectively the first gap electrode that comprises a plurality of strip shaped electric poles 111, and the two arranges with layer;
Referring to Figure 12, the second public electrode 22 and the second pixel electrode 21 are respectively the second gap electrode that comprises a plurality of strip shaped electric poles 111, and the two arranges with layer;
The first public electrode 12 is consistent with strip shaped electric poles 111 bearing of trends in the first pixel electrode 11, and is spaced;
The second public electrode 22 is consistent with strip shaped electric poles 111 bearing of trends in the second pixel electrode 21, and is spaced.
As shown in Figure 1, comprise the display panels shown in Fig. 2 and Figure 12, be similar to the first public electrode and the first pixel electrode that on first substrate, are provided with IPS pattern, on second substrate, be provided with the second public electrode and second pixel electrode of IPS pattern.
Even when the electromotive force on the first pixel electrode and the second pixel electrode equates, there is electric potential difference between the first pixel electrode and the second public electrode, or have electric potential difference between the second pixel electrode and the first public electrode.Because the first public electrode intersects or vertical setting with the second pixel electrode, the electric field of the two time is less, is conducive to reduce the display panels OFF state response time τ of negative liquid crystal pattern
offwith ON state response time τ
on.In like manner, because the second public electrode intersects or vertical setting with the first pixel electrode, the electric field of the two time is less, is conducive to reduce the display panels OFF state response time τ of negative liquid crystal pattern
offwith ON state response time τ
on.
In addition, the present invention's the first public electrode, the first pixel electrode, the second public electrode and the second pixel electrode are gap electrode, and liquid crystal molecule is negative liquid crystal molecule, and the transmitance of light is higher.And negative liquid crystal molecular pattern display panels, can not affect the transmitance of display panels light.
If adopt positivity liquid crystal, there is vertical electric field in the overlapping region between the first public electrode (or first pixel electrode) and the second public electrode (or second pixel electrode), liquid crystal molecule carries out vertical orientated, can greatly affect the transmitance of liquid crystal panel.
Embodiment two:
On the basis of the display panels providing at above-mentioned arbitrary embodiment, further, referring to Figure 13, the first public electrode 12 is plane-shape electrode, the first pixel electrode 11 comprises the first gap electrode of a plurality of strip shaped electric poles described in being, and by the first insulation course 15, insulate mutually between the two; The second public electrode 22 is plane-shape electrode, and the second pixel electrode 21 is the second gap electrode that comprises a plurality of strip shaped electric poles, and by the second insulation course 25, insulate mutually between the two.Or
The first pixel electrode 11 is plane-shape electrode, and the first public electrode 12 comprises the first gap electrode of a plurality of strip shaped electric poles described in being, and by the first insulation course 15, insulate mutually between the two; The second public electrode 22 is plane-shape electrode, and the second pixel electrode 21 is the second gap electrode that comprises a plurality of strip shaped electric poles, and by the second insulation course 25, insulate mutually between the two.
This embodiment is similar to the first public electrode and the first pixel electrode that is provided with ADS pattern on first substrate, is provided with the second public electrode and second pixel electrode of ADS pattern on second substrate.
Embodiment three:
Described the first pixel electrode is plane-shape electrode, and described the first public electrode comprises the first gap electrode of a plurality of strip shaped electric poles described in being, and by the first insulation course, insulate mutually between the two; Described the second pixel electrode is plane-shape electrode, and described the second public electrode comprises the second gap electrode of a plurality of strip shaped electric poles described in being, and by the second insulation course, insulate mutually between the two.
This embodiment is similar to the first public electrode and the first pixel electrode that is provided with IPS pattern on first substrate, is provided with the second public electrode and second pixel electrode of ADS pattern on second substrate.
Embodiment four:
The first gap electrode that comprises a plurality of strip shaped electric poles described in described the first public electrode and the first pixel electrode are respectively, and the two arranges with layer; The first public electrode is consistent with the strip shaped electric poles bearing of trend in the first pixel electrode, and is spaced;
Described the second public electrode is plane-shape electrode, and described the second pixel electrode comprises the second gap electrode of a plurality of strip shaped electric poles described in being, and by the second insulation course, insulate mutually between the two; Or described the second pixel electrode is plane-shape electrode, described the second public electrode comprises the second gap electrode of a plurality of strip shaped electric poles described in being, and by the second insulation course, insulate mutually between the two.
This embodiment is similar to the first public electrode and the first pixel electrode that is provided with ADS pattern on first substrate, is provided with the second public electrode and second pixel electrode of IPS pattern on second substrate.
Lower in order to further illustrate the response speed of the display panels that the embodiment of the present invention provides, the present invention adopts simulation softward (TechWiz3D simulation softward) to simulate, and its electrode structure has adopted periodic boundary condition.
In order more objectively to compare the structure of prior art display panels and the difference of structure of liquid crystal display panel of the present invention, in the process of simulation, for comparative example and embodiment, simulate.
Comparative example is positivity liquid crystal mode display panels, embodiment is the display panels that above-mentioned the first embodiment of the present invention is described, comparative example and embodiment have been used with a negative liquid crystal, on first substrate and second substrate, all adopt strip shaped electric poles, the strip shaped electric poles width of comparative example and embodiment and spacing are also all identical, for example the width of the strip shaped electric poles in the first pixel electrode and the second pixel electrode is 3um, distance between the adjacent strip shaped electric poles of its first pixel electrode is 5um, and the distance between the adjacent strip shaped electric poles of its second pixel electrode is 5um.In simulation process, liquid crystal molecule elastic constant K is: K11=16, K22=8, K33=15, dielectric coefficient ε ∥=3.6 of liquid crystal layer parallel direction, dielectric coefficient ε ⊥=8.6 of vertical direction, liquid crystal coefficient of viscosity γ=61, Ne=1.581, No=1.48, its liquid crystal gap=3.6um, for the strip shaped electric poles on array base palte, it is prolonging y direction of principal axis, and strip shaped electric poles on color membrane substrates, it is prolonging x direction of principal axis arranges, and the position angle of first substrate and second substrate liquid crystal molecule is that the strip shaped electric poles of comparing has the angle of 45 °.For the light transmission shaft quadrature of the first polaroid and the second polaroid, and the optical axis of the second polaroid and strip shaped electric poles be 45 °, prolonging molecular long axis direction and placing.
The display panels respectively comparative example and embodiment being provided is simulated, analog result as shown in figure 14, Figure 14 is the schematic diagram that is related to of display panels light penetration (longitudinal axis, unit 100%) and elapsed-time standards t (transverse axis, the ms of unit).The τ that comparative example obtains
on=7.6ms, τ
off=14.5ms; And the τ that the embodiment of the present invention obtains
on=6.7ms, τ
off=10.1ms, the present invention compares the OFF state response time with comparative example the decline of 5.3ms, and there is the decline of 0.9ms the ON state response time, and this has solved the slow problem of negative liquid crystal response speed to a certain extent.
For the present invention, the value that in its pixel electrode or public electrode, the width of strip shaped electric poles and spacing can reach according to actual process is determined, as long as belong to this structure, all within category of the present invention.
The embodiment of the present invention provides a kind of display device, comprises the display panels of above-mentioned either type, and described display device comprises the display device such as display panels, liquid crystal display, LCD TV.
In sum, in display panels of the present invention, be filled with negative liquid crystal molecule, negative liquid crystal molecule deflects acting in water surface face of transverse electric field, to change the transmitance of light, the deflection of liquid crystal molecule is only subject to the impact of electric field level component, the electric field of vertical component to liquid crystal molecule the deflection in surface level without any contribution.The OFF state response time τ of display panels
offwith ON state response time τ
onbe not subject to the electric field influence of the vertical component between first substrate and second substrate.And, the bearing of trend of the strip shaped electric poles in above-mentioned the first gap electrode of the present invention and the bearing of trend of the strip shaped electric poles in the second gap electrode have the first setting angle α, non-parallel setting between the two, therefore, between the two overlapping is less, improve the light transmission rate of display panels, improved the display quality of image.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a display panels, is characterized in that, comprising:
The first substrate being oppositely arranged and second substrate, and the negative liquid crystal layer between first substrate and second substrate;
Also comprise: the first public electrode and the first pixel electrode that are positioned at close described negative liquid crystal layer one side mutually insulated on described first substrate;
Be positioned at the second public electrode and second pixel electrode of close described negative liquid crystal layer one side mutually insulated on described second substrate;
Described the first public electrode and the first pixel electrode are one of at least the first gap electrode that comprises a plurality of strip shaped electric poles;
Described the second public electrode and the second pixel electrode are one of at least the second gap electrode that comprises a plurality of strip shaped electric poles;
In described the first gap electrode, in the bearing of trend of strip shaped electric poles and the second gap electrode, the bearing of trend of strip shaped electric poles has the first setting angle α.
2. display panels according to claim 1, is characterized in that, described the first setting angle α is 70～90 °.
3. display panels according to claim 2, is characterized in that, also comprises:
Be positioned at the first oriented layer contacting with described negative liquid crystal layer on described first substrate;
Be positioned at the second oriented layer contacting with described negative liquid crystal layer on described second substrate;
In the frictional direction of described the first oriented layer and described the first gap electrode or the second strip shaped electric poles the bearing of trend of strip shaped electric poles or between angle β meet following formula:
β＝(α/2)±5°。
4. display panels according to claim 2, is characterized in that, described the first setting angle is 90 °, and the angle in the frictional direction of described the first oriented layer and described the first gap electrode between strip shaped electric poles is 45 °.
5. display panels according to claim 4, is characterized in that, described the first oriented layer is identical with the frictional direction of the second oriented layer.
6. display panels according to claim 3, is characterized in that, also comprises:
Be positioned on described first substrate the first polaroid away from described negative liquid crystal layer one side;
Be positioned on described second substrate the second polaroid away from described negative liquid crystal layer one side;
The light transmission shaft of described the first polaroid is identical with the frictional direction of described the first oriented layer;
The light transmission shaft of described the second polaroid is mutually vertical with the light transmission shaft of described the first polaroid.
7. according to the display panels described in the arbitrary claim of claim 1～6, it is characterized in that, described in described the first public electrode and the first pixel electrode are respectively, comprise the first gap electrode of a plurality of strip shaped electric poles, and the two arranges with layer;
The second gap electrode that comprises a plurality of strip shaped electric poles described in described the second public electrode and the second pixel electrode are respectively, and the two arranges with layer;
The first public electrode is consistent with the strip shaped electric poles bearing of trend in the first pixel electrode, and is spaced;
The second public electrode is consistent with the strip shaped electric poles bearing of trend in the second pixel electrode, and is spaced.
8. according to the display panels described in the arbitrary claim of claim 1～6, it is characterized in that,
Described the first public electrode is plane-shape electrode, and described the first pixel electrode comprises the first gap electrode of a plurality of strip shaped electric poles described in being, and by the first insulation course, insulate mutually between the two; Described the second public electrode is plane-shape electrode, and described the second pixel electrode comprises the second gap electrode of a plurality of strip shaped electric poles described in being, and by the second insulation course, insulate mutually between the two;
Or
Described the first pixel electrode is plane-shape electrode, and described the first public electrode comprises the first gap electrode of a plurality of strip shaped electric poles described in being, and by the first insulation course, insulate mutually between the two; Described the second pixel electrode is plane-shape electrode, and described the second public electrode comprises the second gap electrode of a plurality of strip shaped electric poles described in being, and by the second insulation course, insulate mutually between the two.
9. according to the display panels described in the arbitrary claim of claim 1～6, it is characterized in that, described in described the first public electrode and the first pixel electrode are respectively, comprise the first gap electrode of a plurality of strip shaped electric poles, and the two arranges with layer; The first public electrode is consistent with the strip shaped electric poles bearing of trend in the first pixel electrode, and is spaced;
Described the second public electrode is plane-shape electrode, and described the second pixel electrode comprises the second gap electrode of a plurality of strip shaped electric poles described in being, and by the second insulation course, insulate mutually between the two; Or described the second pixel electrode is plane-shape electrode, described the second public electrode comprises the second gap electrode of a plurality of strip shaped electric poles described in being, and by the second insulation course, insulate mutually between the two.
10. a display device, is characterized in that, comprises the display panels described in the arbitrary claim of claim 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410240542.6A CN104020615A (en) | 2014-05-30 | 2014-05-30 | Liquid crystal display panel and display device |
| PCT/CN2014/088761 WO2015180375A1 (en) | 2014-05-30 | 2014-10-16 | Liquid crystal display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410240542.6A CN104020615A (en) | 2014-05-30 | 2014-05-30 | Liquid crystal display panel and display device |
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| CN104020615A true CN104020615A (en) | 2014-09-03 |
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| CN201410240542.6A Pending CN104020615A (en) | 2014-05-30 | 2014-05-30 | Liquid crystal display panel and display device |
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| Country | Link |
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| CN (1) | CN104020615A (en) |
| WO (1) | WO2015180375A1 (en) |
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