CN101943829B - In-plane switching liquid crystal display panel and liquid crystal display - Google Patents
In-plane switching liquid crystal display panel and liquid crystal display Download PDFInfo
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- CN101943829B CN101943829B CN2010102510208A CN201010251020A CN101943829B CN 101943829 B CN101943829 B CN 101943829B CN 2010102510208 A CN2010102510208 A CN 2010102510208A CN 201010251020 A CN201010251020 A CN 201010251020A CN 101943829 B CN101943829 B CN 101943829B
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Abstract
The invention relates to an in-plane switching liquid crystal display panel and a liquid crystal display. The in-plane switching liquid crystal display panel comprises a first substrate and a second substrate, wherein a plurality of first pixel electrodes and a plurality of first common electrodes are arranged on the first substrate, and are alternately arranged at intervals to form a plurality of first horizontal electrode pairs for forming a plurality of first horizontal electric fields; a plurality of second pixel electrodes and a plurality of second common electrodes are arranged at the position corresponding to a first pixel region on the second substrate, and are alternately arranged at intervals to form second horizontal electrode pairs for forming a plurality of second horizontal electric fields; and a plurality of second horizontal electrode pairs and a plurality of first horizontal electrode pairs are parallel to one another and are in staggered arrangement. By adopting the liquid crystal display, the pixel aperture opening ratio can be improved to improve the transmission rate of the whole liquid crystal display panel and reduce the driving voltage.
Description
[technical field]
The present invention relates to Thin Film Transistor-LCD (TFT-LCD) field, particularly a kind of intra (In-Plane Switching, IPS) type display panels and have the remodel LCD of display panels of this face inscribe.
[background technology]
TFT-LCD has that image quality is good, volume is little, in light weight, low driving voltage, low-power consumption, radiationless and advantage that manufacturing cost is relatively low, occupies an leading position in the FPD field at present.TFT-LCD be fit to very much be applied in desk-top computer, palmtop computer, personal digital assistant (Personal Digital Assistant, PDA), in portable phone, TV and multiple office automation and the audio-visual equipment.
Display panels is the primary clustering of LCD; Traditional display panels is by a slice thin film transistor (TFT) (Thin Film Transistor; TFT) substrate with another sheet colored filter (Color Filter) baseplate-laminating, and splashes into liquid crystal again and forms between two substrates.Traditional twisted-nematic (Twisted Nematic, TN) type display panels is because of its liquid crystal molecule is driven on perpendicular to the direction of substrate; Its shortcoming is that the visual angle is narrower; Be approximately 90 °, therefore, people have proposed a kind of intra (IPS) type display panels afterwards; Because of its liquid crystal molecule is driven being parallel on the direction of substrate, thereby the visual angle is brought up to even above 170 °.
Recently; Because the blue phase liquid crystal molecule has the characteristic that can change the anisotropic refraction rate according to the size of the voltage that applies and with isotropic refractive index into; And, because its molecular structure has determined to adopt its display panels to have response speed and wide viewing angle faster, because of the blue phase liquid crystal molecule itself has response speed faster; Thereby the LED-backlit that adopts the display panels of blue phase liquid crystal molecule supports a preface to drive; Can save colored filter thus, simultaneously, need not to be coated with alignment film on two substrates of the display panels of employing blue phase liquid crystal molecule liquid crystal molecule is carried out orientation; Thereby the display panels that adopts the blue phase liquid crystal molecule is improving the visual angle, is significantly improving the manufacturing cost that can reduce processing procedure, practice thrift display panels in the response speed of display panels.
Fig. 1 a is the partial cross section figure of existing IPS type blue phase liquid crystal display panel under OFF state.Shown in Fig. 1 a; Existing IPS type blue phase liquid crystal display panel is a kind of monolateral IPS type blue phase liquid crystal display panel; It comprises first substrate 10, second substrate 20 and be sandwiched in first substrate 10 and second substrate 20 between the liquid crystal layer that constitutes by a plurality of blue phase liquid crystal molecules 30, first substrate 10 is provided with the pixel electrode 11 and public electrode 12 of alternately arranging.Be provided with polaroid 40 down in the side that deviates from liquid crystal layer of first substrate 10, be provided with polaroid 50 in the side that deviates from liquid crystal layer of second substrate 20, and the absorption axes of following polaroid 40 and last polaroid 50 be vertical each other.
When IPS type blue phase liquid crystal display panel is under the OFF state situation shown in Fig. 1 a; Be positioned at that pixel electrode 11 on first substrate 10 all is not applied to voltage signal with public electrode 12 or pixel electrode 11 is zero with public electrode 12 the two voltage signal difference that applied; Do not form horizontal component of electric field between pixel electrode 11 and the public electrode 12; Thereby under the situation of OFF state, blue phase liquid crystal molecule 30 keeps spheroidal.When (not shown) backlight during from a side incident of first substrate 10 of IPS type blue phase liquid crystal display panel; After light passes through following polaroid 40; Only polarization state be for can passing through perpendicular to the following light of the absorption axes of polaroid 40, and the blue phase liquid crystal molecule 30 of the spheroidal of this moment keeps isotropic refractive indexs, and light does not change its polarization state after through blue phase liquid crystal molecule 30; See through second substrate, 20 supreme polaroids 50 afterwards; Owing to the absorption axes vertical setting each other of polaroid 40 and last polaroid 50 down, so light all absorptions of quilt after the polaroid 50 on passing through, transmissivity is zero.Fig. 1 b is and the corresponding penetrance-location diagram of Fig. 1 a that visible by Fig. 1 b, under this OFF state situation, the penetrance of IPS type blue phase liquid crystal display panel in each position is zero, do not have light backlight and passes through.
Fig. 2 a is the partial cross section figure of existing IPS type blue phase liquid crystal display panel under ON state.Fig. 2 b is and the corresponding penetrance-location diagram of Fig. 2 a.Shown in Fig. 2 a, also combine with reference to Fig. 2 b; When IPS type blue phase liquid crystal display panel is under the situation of ON state; The pixel electrode 11 that is positioned on first substrate 10 is applied in the different voltages with different signal respectively with public electrode 12, therefore, between pixel electrode 11 and public electrode 12, forms horizontal component of electric field E.At this moment, the blue phase liquid crystal molecule 30 that is arranged in this horizontal component of electric field E will change elliposoidal into from original spheroidal along the line of electric force direction by " horizontal stretch " under the effect of this horizontal component of electric field E, change the anisotropic refraction rate into by isotropic refractive index.When polarization state is that light perpendicular to the following absorption axes of polaroid 40 is during through blue phase liquid crystal molecule 30; Because the blue phase liquid crystal molecule 30 of this moment keeps the anisotropic refraction rate, therefore, twists through the light behind the blue phase liquid crystal molecule 30; Change its polarization state; Light can see through last polaroid 50, has light backlight to pass through, and the penetrance of IPS type blue phase liquid crystal display panel is non-vanishing.Because the refractive index of blue phase liquid crystal molecule 30 depends on the size that is applied to the electric field on the blue phase liquid crystal molecule 30, the size of voltage that therefore can be through putting on pixel electrode 11 and public electrode 12 is controlled passing through of light.Yet; Be positioned at the blue phase liquid crystal molecule of the area just above of pixel electrode 11 and public electrode 12; Because its horizontal electric field component that receives the horizontal component of electric field E of the left and right sides is cancelled out each other, and only receives the cause of the vertical electric field component of horizontal component of electric field E, the blue phase liquid crystal molecule here is only by vertical stretching; Light divides the period of the day from 11 p.m. to 1 a.m not change its polarization state through the blue phase liquid crystal at this place; Therefore, this makes light backlight to pass through, and causing IPS type blue phase liquid crystal display panel is zero corresponding to the penetrance of the area just above of pixel electrode 11 and public electrode 12; And then cause the decline of the penetrance of entire I PS type blue phase liquid crystal display panel, influence the raising of its pixel aperture ratio.In addition, monolateral IPS type blue phase liquid crystal display panel is because the characteristic of itself structure has determined it to need bigger driving voltage.
Certainly,, also can there be above technical matters equally, therefore, be necessary to propose a kind of follow-on inscribe and remodels display panels to overcome above problem of the prior art for the common liquid crystals material except that blue phase liquid crystal.
[summary of the invention]
Technical matters to be solved by this invention provides a kind of inscribe remodel display panels and LCD thereof, and it can improve pixel aperture ratio, and then improves the penetrance of whole liquid crystal display panel, reduces driving voltage.
For solving the problems of the technologies described above; One side of the present invention provides a kind of the inscribe display panels of remodeling; It comprises first substrate, second substrate and be sandwiched in said first substrate and said second substrate between the liquid crystal layer that constitutes by a plurality of liquid crystal molecules; Wherein, Have a plurality of first pixel regions on said first substrate; A plurality of first pixel electrodes and a plurality of first public electrode are set in said first pixel region, and said a plurality of first pixel electrodes and said a plurality of first public electrode a plurality of first horizontal electrodes that are configured for forming first horizontal component of electric field that alternately are intervally arranged each other are right, and said second substrate is provided with a plurality of second pixel electrodes and a plurality of second public electrode corresponding to the position in said first pixel region; Said a plurality of second pixel electrode and said a plurality of second public electrode a plurality of second horizontal electrodes that are configured for forming second horizontal component of electric field that alternately are intervally arranged each other are right; And, said a plurality of second horizontal electrodes pair and said a plurality of first horizontal electrodes to be parallel to each other and each other dislocation arrange, the electrode width of said first pixel electrode, said first public electrode, said second pixel electrode and said second public electrode all equates; First adjacent pixel electrode and the electrode separation between first public electrode equal adjacent second pixel electrode and the electrode separation between second public electrode; And said electrode separation equals said electrode width, and the first adjacent pixel electrode and the dislocation between second pixel electrode distance equals adjacent first public electrode and the dislocation distance between second public electrode; And said dislocation distance equals said electrode width.
Another aspect of the present invention provides a kind of LCD, and it comprises the driving circuit that aforesaid inscribe remodeled display panels and be connected with said display panels, and said display panels adopts LED-backlit.
Adopt of the present invention inscribe remodel display panels and LCD thereof; Because of it is respectively arranged with a plurality of first horizontal electrodes of being used to produce horizontal component of electric field to right with a plurality of second horizontal electrodes on first substrate and second substrate; And; A plurality of second horizontal electrodes that are provided with on a plurality of first horizontal electrodes that are provided with on first substrate pair and second substrate between mutual dislocation arrange, thereby make whole liquid crystal molecule be positioned under the acting in conjunction of two kinds of horizontal component of electric fields that form by first substrate and second substrate, driving voltage is reduced greatly; Cut down the consumption of energy; It can improve pixel aperture ratio simultaneously, and then improves the penetrance of whole liquid crystal display panel, reduces driving voltage.
Through the detailed description below with reference to accompanying drawing, it is obvious that others of the present invention and characteristic become.But should be known in only the purpose design of this accompanying drawing, rather than as the qualification of scope of the present invention, this is because it should be with reference to additional claim for explaining.Should also be appreciated that, only if point out in addition, unnecessary scale accompanying drawing, they only try hard to explain conceptually structure described herein and flow process.
[description of drawings]
Fig. 1 a is the partial cross section synoptic diagram of existing IPS type blue phase liquid crystal display panel under OFF state.
Fig. 1 b is and the corresponding penetrance-location diagram of Fig. 1 a.
Fig. 2 a is the partial cross section synoptic diagram of existing I PS type blue phase liquid crystal display panel under ON state.
Fig. 2 b is and the corresponding penetrance-location diagram of Fig. 2 a.
Fig. 3 is the partial cross section synoptic diagram of I PS type blue phase liquid crystal display panel of the present invention under OFF state.
Fig. 4 a is the partial cross section synoptic diagram of IPS type blue phase liquid crystal display panel of the present invention under ON state.
Fig. 4 b is and the corresponding penetrance-location diagram of Fig. 4 a.
Fig. 5 a is the sequential chart of the pixel voltage signal that received of first pixel electrode of the present invention and second pixel electrode.
Fig. 5 b is the sequential chart of the public voltage signal that received of first public electrode of the present invention and second public electrode.
Fig. 6 is the penetrance-driving voltage graph of relation of IPS type blue phase liquid crystal display panel of the present invention when adopting the ITO electrode of different thickness of electrode.
[embodiment]
For make above-mentioned purpose, feature and advantage can be more obviously understandable, does detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention.
When embodiment of the present invention was detailed, for ease of explanation, the diagrammatic cross-section of representing its structure was disobeyed general ratio and is done local the amplification, and synoptic diagram is example, and it should not limit the scope of the present invention's protection at this.The three dimensions size that in actual fabrication, should comprise in addition, length, width and the degree of depth.
The driving circuit (not shown) that LCD of the present invention comprises face intra (IPS) type display panels and is connected with display panels.
In order to improve the response speed of IPS type display panels, preferably, IPS type display panels of the present invention is a kind of IPS type blue phase liquid crystal display panel that adopts the blue phase liquid crystal molecule.In following embodiment of the present invention, liquid crystal molecule will be that example is set forth with the blue phase liquid crystal molecule only, yet this is not to be used for limitation of the present invention.Obviously, the present invention is not limited to the blue phase liquid crystal molecule, and for other common liquid crystals molecules except that the blue phase liquid crystal molecule, creation notion of the present invention can be suitable for equally.
In addition, need to prove, for illustrated clear for the purpose of, accompanying drawing of the present invention has only disclosed the architectural feature with creation spot correlation of the present invention, then omits for other architectural feature.For the convenience of explaining, used technical term " level " expression relative direction among the application, rather than absolute horizontal direction.If there is not special declaration, the direction that the technical term among the application " level " expression is parallel with the substrate of display panels.
Fig. 3 is the partial cross section synoptic diagram of IPS type blue phase liquid crystal display panel of the present invention under OFF state.As shown in Figure 3, of the present invention inscribe remodel the blue phase liquid crystal display panel comprise first substrate 10, second substrate 20 and be sandwiched in first substrate 10 and second substrate 20 between the liquid crystal layer that constitutes by a plurality of blue phase liquid crystal molecules 30.Be provided with polaroid 40 down in the side that deviates from liquid crystal layer of first substrate 10, be provided with polaroid 50 in the side that deviates from liquid crystal layer of second substrate 20, and the absorption axes of following polaroid 40 and last polaroid 50 be vertical each other.
IPS type blue phase liquid crystal display panel of the present invention is a kind of bilateral I PS type blue phase liquid crystal display panel, promptly on first substrate 10 and second substrate 20, is respectively arranged with a plurality of first horizontal electrodes of being used to produce horizontal component of electric field to right with a plurality of second horizontal electrodes.For existing monolateral IPS type blue phase liquid crystal display panel; Because it is right that the horizontal electrode that produces horizontal component of electric field only is set on one of them substrate that constitutes display panels, therefore, the liquid crystal molecule in the display panels only can receive the driven of a side; The electric field action power that receives owing to the liquid crystal molecule near electric field one side is stronger; The electric field action power that then receives away from the liquid crystal molecule of electric field one side a little less than, thereby make the liquid crystal molecule near electric field one side to respond fast, and slower away from the response speed of the liquid crystal molecule of electric field one side; For this reason, usually through adopting the mode that improves driving voltage to solve this problem.And with respect to existing this monolateral IPS type blue phase liquid crystal display panel; Adopt this bilateral IPS type blue phase liquid crystal display panel of the present invention; Because it is right on two substrates that constitute display panels, horizontal electrode to be set all; Therefore, can be simultaneously from the both sides drives liquid crystal molecules respectively relatively up and down of display panels, liquid crystal molecule is up and down relatively under the acting in conjunction of the electric field of both sides; Can under less driving voltage, respond fast, thereby can reduce the driving voltage of display panels.
When IPS type blue phase liquid crystal display panel of the present invention is under the OFF state situation shown in Figure 3; Be positioned at that first pixel electrode 11 and first public electrode 12 on first substrate 10 all is not applied to voltage signal or first pixel electrode 11 is zero with first public electrode, 12 the two voltage signal difference that applied; Be positioned at that second pixel electrode 21 and second public electrode 22 on second substrate 20 also all is not applied to voltage signal or second pixel electrode 21 is zero with second public electrode, 22 the two voltage signal difference that applied; All do not form horizontal component of electric field between first pixel electrode 11 and first public electrode 12 and between second pixel electrode 21 and second public electrode 22; Thereby under the situation of OFF state, blue phase liquid crystal molecule 30 keeps spheroidal.When (not shown) backlight during from a side incident of first substrate 10 of IPS type blue phase liquid crystal display panel; After light passes through following polaroid 40; Only polarization state can pass through for the light perpendicular to the absorption axes that descends polaroid 40; And the blue phase liquid crystal molecule 30 of the spheroidal of this moment keeps isotropic refractive indexs, and light does not change its polarization state after through blue phase liquid crystal molecule 30, sees through second substrate, 20 supreme polaroids 50 afterwards; Owing to the absorption axes vertical setting each other of polaroid 40 and last polaroid 50 down; Therefore light is all absorbed after the polaroid 50 on passing through, and the penetrance of IPS type blue phase liquid crystal display panel in each position is zero, do not have light backlight and passes through.
Fig. 4 a is the partial cross section figure of IPS type blue phase liquid crystal display panel of the present invention under ON state.Shown in Fig. 4 a; When IPS type blue phase liquid crystal display panel is under the situation of ON state; Be positioned on first pixel electrode 11 and first public electrode 12 on first substrate 10 and all be applied in the different voltages with different signal; Be positioned on second pixel electrode 21 and second public electrode 22 on second substrate 20 and also all be applied in the different voltages with different signal; At this moment, between first pixel electrode 11 on first substrate 10 and first public electrode 12, form the first horizontal component of electric field E1, between second pixel electrode 21 on second substrate 20 and second public electrode 22, form the second horizontal component of electric field E2.Preferably, first pixel electrode 11 receives identical pixel voltage signal V with second pixel electrode 12
Pixel, first public electrode 21 receives identical public voltage signal V with second public electrode 22
ComThereby, guarantee the Electric Field Distribution homogeneity of the first horizontal component of electric field E1 and the second horizontal component of electric field E2, receive the even driving of the first horizontal component of electric field E1 and the second horizontal component of electric field E2 to guarantee blue phase liquid crystal molecule 30.In the case; Be positioned at the effect that near first substrate, 10 blue phase liquid crystal molecules 30 receive the first horizontal component of electric field E1; Be positioned at the effect that near second substrate, 20 blue phase liquid crystal molecules 30 receive the second horizontal component of electric field E2, the blue phase liquid crystal molecule 30 in the display panels is anisotropy owing to receive under the acting in conjunction of first, second horizontal component of electric field E1, E2 by isotropic transition; Blue phase liquid crystal molecule 30 is allowed the display panels that passes backlight this moment by " horizontal stretch ".
The above first horizontal component of electric field E1 that produces and the second horizontal component of electric field E2 public voltage signal that to be the pixel voltage signal that received with first pixel electrode 11 and second pixel electrode 21 received greater than first public electrode 12 and second public electrode 22 is that example describes; Certainly; The situation of the public voltage signal that the pixel voltage signal that is received for first pixel electrode 11 and second pixel electrode 21 is received less than first public electrode 12 and second public electrode 22; Above-mentioned conclusion is suitable equally, repeats no more here.
In order to guarantee that IPS type blue phase liquid crystal display panel is under ON state; The first horizontal component of electric field E1 that on first substrate 10, produces by first pixel electrode 11 and first public electrode 12; And the homogeneity of two electric fields of the second horizontal component of electric field E2 that on second substrate 20, produce by second pixel electrode 21 and second public electrode 22; Make blue phase liquid crystal molecule 30 can receive the even driving of electric field up and down; Preferably, first pixel electrode 11, first public electrode 12, second pixel electrode 21 and second public electrode 22 have identical electrode widths W.More preferably, have identical electrode separation L between the first adjacent pixel electrode 11 and first public electrode 12 and between the second adjacent pixel electrode 21 and second public electrode 22, and electrode separation L equals electrode widths W.More preferably, have identical dislocation distance B between the first adjacent pixel electrode 11 and second pixel electrode 21 and between the first adjacent public electrode 12 and second public electrode 22, and the dislocation distance B equals electrode widths W.
Since first horizontal electrode that is provided with on first substrate 10 of the present invention to second substrate 20 on second horizontal electrode that is provided with mutual dislocation is arranged; Make first pixel electrode 11 and first public electrode 12 on the substrate 10 of winning correspond respectively to second adjacent on second substrate 20 pixel electrode 21 and the electrode separation L place between second public electrode 22; Likewise; Second pixel electrode 21 on second substrate 20 and second public electrode 22 correspond respectively to first adjacent on first substrate 10 pixel electrode 11 and the electrode separation L place between first public electrode 12; Therefore; The blue phase liquid crystal molecule 30 of first pixel electrode 11 on first substrate 10 and the area just above of first public electrode 12 can compensate the horizontal electric field component that it receives by the second horizontal component of electric field E2 that second pixel electrode 21 on second substrate 20 and second public electrode 22 constitute; Likewise, second pixel electrode 21 on second substrate 20 and second public electrode 22 under the zone blue phase liquid crystal molecule 30 can compensate the horizontal electric field component that it receives by the first horizontal component of electric field E2 that first pixel electrode 11 on first substrate 10 and first public electrode 12 constitute.Particularly; For example; Blue phase liquid crystal molecule 30 for the area just above that is positioned at first pixel electrode 11 and first public electrode 12 on first substrate 10; Blue phase liquid crystal molecule 30 near first substrate, 10 1 sides is cancelled out each other owing to its horizontal electric field component that receives the first horizontal component of electric field E1 of the left and right sides, only receives the cause of the vertical electric field component of the first horizontal component of electric field E1, and the blue phase liquid crystal molecule here is only by vertical stretching; When polarization state be perpendicular to the light of the following absorption axes of polaroid 40 through near the blue phase liquid crystal molecule 30 of first substrate, 10 1 sides the time; Light does not change its polarization state, yet the blue phase liquid crystal molecule 30 that is positioned at the area just above of first pixel electrode 11 and first public electrode 12 on first substrate 10 can receive the effect of the second horizontal component of electric field E2 that is made up of second pixel electrode 21 on second substrate 20 and second public electrode 22 simultaneously; Near the blue phase liquid crystal molecule 30 of second substrate, 20 1 sides under the effect of the horizontal electric field component of the second horizontal component of electric field E2; Blue phase liquid crystal molecule 30 is stretched horizontally, though polarization state does not change its polarization state for the light perpendicular to the absorption axes that descends polaroid 40 through behind the blue phase liquid crystal molecule 30 near first substrate, 10 1 sides; After polarization state is the blue phase liquid crystal molecule 30 of light process near second substrate, 20 1 sides perpendicular to the absorption axes that descends polaroid 40; Light changes its polarization state, and this makes light can see through last polaroid 50, has light backlight to pass through; Therefore, IPS type blue phase liquid crystal display panel is non-vanishing corresponding to the penetrance in the zone of first pixel electrode 11 on first substrate 10 and first public electrode 12.For be positioned at second pixel electrode 21 and second public electrode 22 on second substrate 20 under the blue phase liquid crystal molecule 30 in zone with last similar, IPS type blue phase liquid crystal display panel is also non-vanishing corresponding to the penetrance in second pixel electrode 21 on second substrate 20 and second public electrode 22 regional.
Fig. 4 b is and the corresponding penetrance-location diagram of Fig. 4 a; Visible by Fig. 4 b; Display panels all has bigger penetrance in each position and penetrance is evenly distributed; Eliminated in the existing IPS type blue phase liquid crystal display panel shown in Fig. 2 b the lower situation of penetrance, improved aperture ratio of pixels, thereby improved the penetrance of entire I PS type blue phase liquid crystal display panel corresponding to the area just above of pixel electrode or public electrode.
Consider on first substrate 10 of the present invention first pixel electrode 11 that is provided with and first public electrode 12 respectively with second substrate 20 on second pixel electrode 21 that is provided with and second public electrode 22 is parallel to each other and misplace each other arrange after; Can be between second public electrode 22 of first pixel electrode 11 of first substrate 10 and second substrate 20; And produce vertical electric field respectively between first public electrode 12 of second pixel electrode 21 of second substrate 20 and first substrate 10; Therefore; First adjacent pixel electrode 11 and the electrode separation L between first public electrode 12 and adjacent second pixel electrode 21 and the electrode separation L between second public electrode 22 all should be less than the box of liquid crystal layer thick d; Thereby enhanced level electric field and weaken vertical electric field reduces the influence of vertical electric field for liquid crystal molecule greatly.
Fig. 5 a is the sequential chart of the pixel voltage signal that received of first pixel electrode of the present invention and second pixel electrode.Fig. 5 b is the sequential chart of the public voltage signal that received of first public electrode of the present invention and second public electrode.Shown in Fig. 5 a and 5b, preferably, the pixel voltage signal V that a plurality of first pixel electrodes 11 and a plurality of second pixel electrodes 12 are received
Pixe1The public voltage signal V that is received with a plurality of first public electrodes 21 and a plurality of second public electrodes 22
ComBetween differ the phase place of 1/2 wavelength, that is, and the pixel voltage signal V on first pixel electrode 11, second pixel electrode 12
PixelWhen being in high level (corresponding to crest location), the public voltage signal V on first public electrode 11, second public electrode 12
ComBe in low level (corresponding to wave trough position), otherwise, the pixel voltage signal V on first pixel electrode 11, second pixel electrode 12
PixelWhen being in low level (corresponding to wave trough position), the public voltage signal V on first public electrode 21, second public electrode 22
ComBe in high level (corresponding to crest location); Thereby can be, and then can realize to produce stronger first, second horizontal component of electric field E1, the purpose of E2 to apply less driving voltage so that have bigger voltage difference between first pixel electrode 11 and first public electrode 12 and between second pixel electrode 12 and second public electrode 22.
When first substrate 10 and the bilateral driving circuit form driving of second substrate, 20 employings; When promptly first substrate 10 adopts different driving circuits to drive respectively with second substrate 20; Second substrate 20 of the present invention and first substrate 10 need drive separately respectively, on second substrate 20 of the present invention, also need be provided with respectively and many first sweep traces of first substrate 10, many first data lines and corresponding many second sweep traces in the transistorized position of a plurality of the first film (not shown), many second data lines (not shown) and a plurality of second thin film transistor (TFT) (not shown).Many second sweep traces and many second data lines intersect each other and limit corresponding second pixel region in position with first pixel region of first substrate 10.Second thin film transistor (TFT) is arranged in second pixel region; It is used to control second pixel electrode 21; And second sweep trace, the source electrode that the grid of each second thin film transistor (TFT) is connected to correspondence is connected to the second corresponding data line, drain electrode is connected to second pixel electrode 21 in corresponding second pixel region.
When first substrate 10 and the 20 employing single sided driving circuit forms drivings of second substrate; Promptly only first substrate 10 adopts driving circuit to drive; Through first substrate 10 drive signal is incorporated into 20 last times of second substrate; Then in each first pixel region,, first pixel electrode 11 and second pixel electrode 21 on second substrate 20 on the substrate 10 of winning are electrically connected through being arranged on conductive particle or other conductive materials between first substrate 10 and second substrate 20; Thereby the drive signal that second public electrode 22 on first public electrode 12 on first substrate 10 and second substrate 20 electrically connects the driving circuit on first substrate 10 is delivered on second substrate 20; And then, needn't on second substrate 20, be provided for controlling second sweep trace, second data line and second thin film transistor (TFT) of second pixel electrode 21, therefore; The processing procedure of second substrate 20 be can significantly reduce, operation and cost practiced thrift.
Preferably; The driving circuit of the driving circuit of first substrate 10 and/or second substrate 20 adopts GIA (Gate driver In Array) technology; Be about to driving circuit and be arranged on the technology on the substrate, thereby can simplify external drive circuit, and; Save the usage quantity of drive circuit chip, reduce cost.
When IPS type display panels of the present invention selects for use blue phase liquid crystal to divide the period of the day from 11 p.m. to 1 a.m; Preferably, it is backlight that IPS type display panels of the present invention adopts LED (Light-Emitting Diode, light emitting diode); And; LED-backlit can adopt a preface type of drive, because of field preface type of drive is a techniques well known, does not give unnecessary details at this.The LED-backlit that an employing preface drives can save the colored filter that is provided with on existing second substrate 20, therefore can further reduce processing procedure, the saving cost of second substrate 20.
Preferably; First pixel electrode 11 of the present invention, first public electrode 12, second pixel electrode 21 and second public electrode 22 all adopt transparent conductive material to form; For example form by ITO (Indium Tin Oxide, tin indium oxide) or IZO (Indium Zinc Oxide, indium zinc oxide); In embodiment of the present invention, first pixel electrode 11, first public electrode 12, second pixel electrode 21 and second public electrode 22 are I TO electrode.Fig. 6 is the penetrance-driving voltage graph of relation of IPS type blue phase liquid crystal display panel of the present invention when adopting the ITO electrode of different thickness of electrode.Four penetrances-driving voltage relation curve when thickness of electrode H wherein being shown among Fig. 6 getting 2 μ m, 1.0 μ m, 0.5 μ m and 0.05 μ m respectively, visible by Fig. 6, when thickness of electrode is 2 μ m; The average penetration rate of display panels is lower; When thickness was decreased to 0.05 μ m gradually, the average penetration rate of display panels had obvious lifting, therefore; Preferably; The thickness of electrode of first pixel electrode 11 of the present invention, first public electrode 12, second pixel electrode 21 and second public electrode 22 is in the 0-2 mu m range, and said thickness of electrode H is more little in this scope, and the average penetration rate of display panels is high more.When thickness of electrode H increased, the average penetration rate of display panels descended to some extent, but its driving voltage can drop to below the 20V soon, therefore, and can be according to the thickness of electrode H that each electrode suitably is set the driving voltage and the demands of different of average penetrance.
Adopt of the present invention the inscribe display panels of remodeling; Because of it is respectively arranged with a plurality of first horizontal electrodes of being used to produce horizontal component of electric field to right with a plurality of second horizontal electrodes on first substrate 10 and second substrate 20; And; A plurality of second horizontal electrodes that are provided with on a plurality of first horizontal electrodes that are provided with on first substrate 10 pair and second substrate 20 between be parallel to each other and misplace each other and arrange; Promptly a plurality of second pixel electrodes 21 on second substrate 20 and a plurality of second public electrodes 22 respectively with first substrate 10 on a plurality of first pixel electrodes 11 be parallel to each other with a plurality of first public electrodes 12 and each other dislocation arrange; Thereby make whole liquid crystal molecule be positioned under the acting in conjunction of two kinds of horizontal component of electric fields that form by first substrate and second substrate, driving voltage is reduced greatly, cut down the consumption of energy; Simultaneously can be so that whole inscribe remodeled in the display panels aperture ratio of pixels improve, make the penetrance of whole liquid crystal display panel improve.
More than to IPS type blue phase liquid crystal display panel provided by the present invention; Carried out detailed introduction; Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously; For one of ordinary skill in the art; According to thought of the present invention, the part that on embodiment and range of application, all can change, in sum; This description should not be construed as limitation of the present invention, and protection scope of the present invention should be as the criterion with claim of the present invention institute restricted portion.
Claims (12)
1. face inscribe display panels of remodeling; It comprises first substrate, second substrate and be sandwiched in said first substrate and said second substrate between the liquid crystal layer that constitutes by a plurality of liquid crystal molecules; Wherein, Have a plurality of first pixel regions on said first substrate; A plurality of first pixel electrodes and a plurality of first public electrode are set in said first pixel region; Said a plurality of first pixel electrode and said a plurality of first public electrode a plurality of first horizontal electrodes that are configured for forming first horizontal component of electric field that alternately are intervally arranged each other are right; It is characterized in that: said second substrate is provided with a plurality of second pixel electrodes and a plurality of second public electrode corresponding to the position in said first pixel region, and said a plurality of second pixel electrodes and said a plurality of second public electrode a plurality of second horizontal electrodes that are configured for forming second horizontal component of electric field that alternately are intervally arranged each other are right, and; Said a plurality of second horizontal electrode pair and said a plurality of first horizontal electrodes to be parallel to each other and each other dislocation arrange; The electrode width of said first pixel electrode, said first public electrode, said second pixel electrode and said second public electrode all equates, first adjacent pixel electrode and the electrode separation between first public electrode equal adjacent second pixel electrode and the electrode separation between second public electrode, and; Said electrode separation equals said electrode width; The first adjacent pixel electrode and the dislocation between second pixel electrode distance equals adjacent first public electrode and the dislocation distance between second public electrode, and said dislocation is apart from equaling said electrode width.
2. an inscribe as claimed in claim 1 display panels of remodeling; Wherein, Said first substrate comprises many first sweep traces, many first data lines and a plurality of the first film transistor; Limit a plurality of said first pixel regions said many first sweep traces and said many first data line cross arrangements; Said the first film transistor is arranged on and is used to control said first pixel electrode in said first pixel region; In each first pixel region, be provided with a plurality of said first pixel electrode and said first public electrodes that are bar shaped and almost parallel; Said second substrate is provided with a plurality of said second pixel electrode and said second public electrodes that are bar shaped and almost parallel of respective amount, and the arrangement with said a plurality of first pixel electrodes and said a plurality of first public electrodes is identical respectively with said a plurality of second public electrodes for said a plurality of second pixel electrodes.
3. an inscribe as claimed in claim 2 display panels of remodeling; Wherein, Said second substrate comprises respectively and many first sweep traces of said first substrate, many first corresponding many second sweep traces of data line and the transistorized position of a plurality of the first film, many second data lines and a plurality of second thin film transistor (TFT) that said second thin film transistor (TFT) is used to control said second pixel electrode.
4. an inscribe as claimed in claim 1 display panels of remodeling, wherein, said second pixel electrode and said first pixel electrode electrically connect, said second public electrode and the electric connection of said first public electrode.
5. an inscribe as claimed in claim 1 display panels of remodeling; Wherein, adjacent first pixel electrode and the electrode separation between first public electrode and adjacent second pixel electrode and the electrode separation between second public electrode are thick less than the box of said liquid crystal layer.
6. an inscribe as claimed in claim 1 display panels of remodeling, wherein, the thickness of electrode of said first pixel electrode, said first public electrode, said second pixel electrode and said second public electrode is in the 0-2 mu m range.
7. like the display panels of remodeling of each described inscribe in the claim 1 to 6, wherein, said liquid crystal molecule is the blue phase liquid crystal molecule.
8. LCD, wherein, it comprises like each described driving circuit that inscribe is remodeled display panels and is connected with said display panels in the claim 1 to 7, and said display panels adopts LED-backlit.
9. LCD as claimed in claim 8, wherein, said LED-backlit adopts a preface type of drive.
10. LCD as claimed in claim 9; Wherein, Said a plurality of first pixel electrode receives identical pixel voltage signal with said a plurality of second pixel electrodes, and said a plurality of first public electrodes receive identical public voltage signal with said a plurality of second public electrodes.
11. LCD as claimed in claim 10 wherein, differs the phase place of 1/2 wavelength between said pixel voltage signal and the said public voltage signal.
12. LCD as claimed in claim 8, wherein, said driving circuit adopts the GIA technology.
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Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202256974U (en) * | 2011-10-25 | 2012-05-30 | 京东方科技集团股份有限公司 | Liquid crystal display panel in fringe-field switching mode |
| CN102749767B (en) * | 2012-06-19 | 2015-05-13 | 京东方科技集团股份有限公司 | Blue-phase LCD (Liquid Crystal Display) panel and blue-phase LCD device |
| CN102819153B (en) * | 2012-08-10 | 2015-03-11 | 京东方科技集团股份有限公司 | Color film substrate, liquid crystal panel and liquid crystal display device |
| TWI473067B (en) * | 2012-08-20 | 2015-02-11 | Au Optronics Corp | Display apparatus and display panel |
| CN102819155A (en) * | 2012-09-14 | 2012-12-12 | 深圳市华星光电技术有限公司 | Dual-TFT (Thin Film Transistor) substrate blue phase liquid crystal display panel |
| CN103176317B (en) * | 2013-04-07 | 2016-02-10 | 合肥京东方光电科技有限公司 | Liquid crystal pixel electrode structure, array base palte and display device |
| CN103412448B (en) * | 2013-07-29 | 2016-01-06 | 北京京东方光电科技有限公司 | Liquid crystal panel, display device and manufacture thereof and driving method |
| CN110082968A (en) * | 2013-12-02 | 2019-08-02 | 夏普株式会社 | Liquid crystal display device |
| CN103969896B (en) | 2014-04-14 | 2016-02-10 | 京东方科技集团股份有限公司 | A kind of flexible display panels and flexible display |
| CN104880883A (en) * | 2015-06-12 | 2015-09-02 | 武汉华星光电技术有限公司 | Blue-phase liquid crystal display panel and production method thereof |
| CN105093720B (en) * | 2015-08-03 | 2017-12-08 | 武汉华星光电技术有限公司 | Blue phase liquid crystal display module, blue phase liquid crystal display and preparation method thereof |
| CN105204243A (en) * | 2015-10-16 | 2015-12-30 | 武汉华星光电技术有限公司 | High-speed response liquid crystal display panel |
| KR102526357B1 (en) * | 2015-12-31 | 2023-05-02 | 엘지디스플레이 주식회사 | In Plane Switching Type Liquid Crystal Display Having Ultra High Transmittance Rate |
| CN105954945B (en) * | 2016-06-28 | 2021-11-16 | 联想(北京)有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN106066557B (en) * | 2016-08-10 | 2019-06-21 | 京东方科技集团股份有限公司 | Display panel, display device |
| CN107247349B (en) * | 2017-05-25 | 2023-09-19 | 菏泽学院 | Multifunctional continuous visual angle controllable display |
| CN109656064A (en) * | 2018-12-29 | 2019-04-19 | 武汉华星光电技术有限公司 | Liquid crystal display panel and display device |
| CN110767085B (en) * | 2019-03-29 | 2021-11-30 | 昆山国显光电有限公司 | Display substrate, display panel and display device |
| CN110618564B (en) * | 2019-10-30 | 2022-06-24 | 京东方科技集团股份有限公司 | Electrode structure, array substrate and display device |
| CN112162425B (en) * | 2020-10-29 | 2023-12-01 | 京东方科技集团股份有限公司 | Pixel unit, driving method thereof, array substrate and vertical alignment type display device |
| CN116661202A (en) * | 2022-02-18 | 2023-08-29 | 成都中电熊猫显示科技有限公司 | Array substrate and display device |
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| KR100698047B1 (en) * | 2003-04-19 | 2007-03-23 | 엘지.필립스 엘시디 주식회사 | In-Plane Switching Mode Liquid Crystal Display Device and the Method for Manufacturing the same |
| KR20080003085A (en) * | 2006-06-30 | 2008-01-07 | 엘지.필립스 엘시디 주식회사 | In plane switching mode liquid crystal display device and method of fabricating thereof |
| KR20080050851A (en) * | 2006-12-04 | 2008-06-10 | 삼성전자주식회사 | Liquid crystal display panel |
| KR20080071231A (en) * | 2007-01-30 | 2008-08-04 | 삼성전자주식회사 | Liquid crystal display device |
| CN101718928B (en) * | 2009-12-29 | 2011-04-20 | 友达光电股份有限公司 | Electrode structure, display panel and dsiplay |
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Address after: 215301 No. 1, Longteng Road, Kunshan, Jiangsu Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301 No. 1, Longteng Road, Kunshan, Jiangsu Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |