CN100437267C - Semi penetration semi reflective liquid crystal display device - Google Patents
Semi penetration semi reflective liquid crystal display device Download PDFInfo
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- CN100437267C CN100437267C CNB2004100274351A CN200410027435A CN100437267C CN 100437267 C CN100437267 C CN 100437267C CN B2004100274351 A CNB2004100274351 A CN B2004100274351A CN 200410027435 A CN200410027435 A CN 200410027435A CN 100437267 C CN100437267 C CN 100437267C
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Abstract
The present invention discloses a semi-penetrating semi-reflecting liquid crystal display device which comprises a first basal plate, a second basal plate, a liquid crystal layer clamped between the first basal plate and the second basal plate, an upper polaroid arranged on the first basal plate, a lower polaroid arranged on the second basal plate, an upper first delay piece arranged between the upper polaroid and the liquid crystal layer, a lower first delay piece arranged between the lower polaroid and the liquid crystal layer, a common electrode arranged on the first basal plate and a pixel electrode formed on the second basal plate. The liquid crystal molecules of the liquid crystal layer use horizontal orientation, and the upper first delay piece and the lower first delay piece are respectively a quarter wave piece. The pixel electrode, the common electrode and the liquid crystal layer clamped between the pixel electrode and the common electrode form a plurality of pixel areas. Each pixel area is provided with a reflective area and a penetration area. An upper first compensating piece is arranged between the upper first delay piece and the liquid crystal layer, and a lower first compensating piece is arranged between the lower first delay piece and the liquid crystal layer.
Description
[technical field]
The invention relates to a kind of liquid crystal indicator, particularly about a kind of semi-penetrating semi-reflecting type liquid crystal displaying device.
[background technology]
Liquid crystal indicator because have low diathermaneity, characteristics such as volume is compact and power consumption is low, so day by day extensive on using, and along with the ripe and innovation of correlation technique, its kind is also various day by day.
According to the difference of light source that liquid crystal indicator utilizes, can be divided into penetration liquid crystal display device and reflective LCD device.Penetration liquid crystal display device must be provided with a backlight at the display panels back side and show to realize image, but the power consumption of backlight accounts for whole penetration liquid crystal display device power consumption half, so the power consumption of penetration liquid crystal display device is bigger.Reflective LCD device can solve the big problem of penetration liquid crystal display device power consumption, but is difficult to realize that image shows under the faint environment of light.Semi-penetrating semi-reflecting type liquid crystal displaying device can solve above problem.
Please refer to Fig. 1, prior art semi-penetrating semi-reflecting type liquid crystal displaying device 1 comprises that two transparent lower substrate 11 and upper substrate 12, liquid crystal layers 13 that are provided with relatively are clipped between this infrabasal plate 11 and the upper substrate 12.One transparent common electrode 14 and an alignment film 18 are successively set on the inner surface of this upper substrate 12, on one on the retardation plate 122 and a Polarizer 121 be successively set on the outer surface of this upper substrate 12.One transparency electrode 17, a passivation layer 16, a reflecting electrode 15 and an alignment film 19 are successively set on the inner surface of this infrabasal plate 11, and wherein this passivation layer 16 and reflecting electrode 15 have an opening 151.Once retardation plate 112 and once Polarizer 111 be successively set on the outer surface of this infrabasal plate 11.
Should go up retardation plate 122 is quarter-wave plate (λ/4) with following retardation plate 112, and alignment film 18,19 is horizontal direction matching (Homogeneous Alignment), and last Polarizer 121 is orthogonal with the polarization direction of following Polarizer 111.Reflecting electrode 15 is metallic aluminiums (Al) of high reflectance, transparent common electrode 14 and transparency electrode 17 be transparent conductive material such as tin indium oxide (IndiumTin Oxide, ITO) or indium zinc oxide (Indium Zinc Oxide, IZO).Liquid crystal layer 13 has different thickness, and wherein the thickness of liquid crystal layer 13 is d between transparent common electrode 14 and the reflecting electrode 15
11, the thickness of transparent common electrode 14 and 17 liquid crystal layers 13 of transparency electrode is d
12, d wherein
12Be approximately d
11Twice.Thickness of liquid crystal layer is d
11The zone be reflector space, thickness of liquid crystal layer is d
12The zone be penetration region.
The optical delay of the liquid crystal layer 13 of reflector space is:
Δn·d
11＝λ/4
Because d
12Approximately be d
11Twice, so the optical delay of the liquid crystal layer 13 of penetration region is:
Δn·d
12＝λ/2
Wherein Δ n is the birefraction of liquid crystal layer 13, and λ is the wavelength of light.
Please refer to Fig. 2, the liquid crystal molecule along continuous straight runs is arranged when not applying voltage, because the optical delay of the liquid crystal layer 13 of reflector space is λ/4, the optical delay of the liquid crystal layer 13 of penetration region is λ/2, so this semi-penetrating semi-reflecting type liquid crystal displaying device 1 is bright attitude.Liquid crystal molecule is arranged along the direction perpendicular to substrate 11,12 when applying voltage, and the optical delay of liquid crystal layer 13 is 0, so this semi-penetrating semi-reflecting type liquid crystal displaying device 1 is dark attitude.Can realize that by the voltage that applies different value different GTGs shows.
But owing to have grasp energy (Anchoring Energy) between alignment film 18,19 and near the liquid crystal molecule that is positioned at it, near the alignment film 18,19 liquid crystal molecule can not be arranged along the direction perpendicular to substrate 11,12 fully, the optical delay of liquid crystal layer 13 is not entirely 0, so there are residue optics bit phase delays in liquid crystal layer 13, make this semi-penetrating semi-reflecting type liquid crystal displaying device 1 when dark attitude, have light leakage phenomena.Please refer to Fig. 3, be the voltage of prior art semi-penetrating semi-reflecting type liquid crystal displaying device 1 and the curve map of penetrance, the penetrance of this semi-penetrating semi-reflecting type liquid crystal displaying device 1 is 0.038 when dark attitude, can not realize complete black when that is to say dark attitude, still there is part light to pass through, thereby influences its contrast and viewing angle characteristic.
[summary of the invention]
The not high and viewing angle characteristic defect of bad of semi-penetrating semi-reflecting type liquid crystal displaying device contrast for overcoming prior art the invention provides a kind of contrast height and the good semi-penetrating semi-reflecting type liquid crystal displaying device of viewing angle characteristic.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of semi-penetrating semi-reflecting type liquid crystal displaying device is provided, comprise one first substrate, one second substrate, one is sandwiched in the liquid crystal layer between this first substrate and this second substrate, one is arranged on the last Polarizer of first substrate, one is arranged on the following Polarizer of second substrate, one is arranged on retardation plate on first between Polarizer and the liquid crystal layer, one is arranged on down first time retardation plate between Polarizer and the liquid crystal layer, one public electrode and that is arranged on first substrate is formed on the pixel electrode of second substrate, wherein the liquid crystal molecule of this liquid crystal layer is a horizontal direction matching, this on first retardation plate and this first time retardation plate be quarter-wave plate, pixel electrode, public electrode and the liquid crystal layer that is sandwiched in wherein constitute a plurality of pixel regions, this each pixel region has a reflector space and a penetration region, compensating plate is arranged on first between the retardation plate and liquid crystal layer on one first, one first time compensating plate is arranged between first time retardation plate and the liquid crystal layer, and the phase delay relation of compensating plate satisfies formula on the liquid crystal layer of reflector space and this first:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...；
Ret
LCR(V
On)+∑Ret
F1＝±m(λ/2)，m＝0，1，2，...；
Wherein, Ret
LCR(V
Off) be the phase delay of the liquid crystal layer of reflector space when not applying voltage, Ret
LCR(V
On) be the phase delay of the liquid crystal layer of reflector space when applying voltage, ∑ Ret
F1Be the phase delay of this compensating plate on first, λ is value in visible wavelength range.
Semi-penetrating semi-reflecting type liquid crystal displaying device of the present invention can comprise further that also one is separately positioned on Polarizer and first between the retardation plate and retardation plate and second time retardation plate on second between Polarizer and the first time retardation plate down, this on second retardation plate and second time retardation plate be 1/2nd wave plates.
Compared to prior art, retardation plate on first, first time retardation plate, go up compensating plate and down compensating plate can be when applying voltage since liquid crystal molecule and the residue optical phase put-off that not exclusively causes perpendicular to the substrate arrangement compensate, thereby the light leakage phenomena when reducing dark attitude improves the contrast of this semi-penetrating semi-reflecting type liquid crystal displaying device; Last compensating plate can compensate the contrast and the aberration of different visual angles with following compensating plate, to improve the visual angle of this semi-penetrating semi-reflecting type liquid crystal displaying device.
[description of drawings]
Fig. 1 is the diagrammatic cross-section of prior art semi-penetrating semi-reflecting type liquid crystal displaying device.
Fig. 2 is the bright attitude of prior art semi-penetrating semi-reflecting type liquid crystal displaying device and the Liquid Crystal Molecules Alignment synoptic diagram under the dark attitude.
Fig. 3 is the penetrance and the driving voltage graph of relation of prior art semi-penetrating semi-reflecting type liquid crystal displaying device.
Fig. 4 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device first embodiment of the present invention.
Fig. 5 is the shaft orientation relation figure of the optical module of semi-penetrating semi-reflecting type liquid crystal displaying device first embodiment of the present invention.
Fig. 6 is the reflector space index path of semi-penetrating semi-reflecting type liquid crystal displaying device first embodiment of the present invention.
Fig. 7 is the penetration region index path of semi-penetrating semi-reflecting type liquid crystal displaying device first embodiment of the present invention.
Fig. 8 is the penetrance and the driving voltage graph of relation of semi-penetrating semi-reflecting type liquid crystal displaying device first embodiment of the present invention.
Fig. 9 and Figure 10 are the contrast figure of semi-penetrating semi-reflecting type liquid crystal displaying device first embodiment of the present invention.
Figure 11 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device second embodiment of the present invention.
Figure 12 is the penetrance and the driving voltage graph of relation of semi-penetrating semi-reflecting type liquid crystal displaying device second embodiment of the present invention.
Figure 13 and Figure 14 are the contrast figure of semi-penetrating semi-reflecting type liquid crystal displaying device second embodiment of the present invention.
Figure 15 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 3rd embodiment of the present invention.
Figure 16 is the penetrance and the driving voltage graph of relation of semi-penetrating semi-reflecting type liquid crystal displaying device the 3rd embodiment of the present invention.
Figure 17 and Figure 18 are the contrast figure of semi-penetrating semi-reflecting type liquid crystal displaying device the 3rd embodiment of the present invention.
Figure 19 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 4th embodiment of the present invention.
Figure 20 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 5th embodiment of the present invention.
Figure 21 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 6th embodiment of the present invention.
Figure 22 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 7th embodiment of the present invention.
Figure 23 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 8th embodiment of the present invention.
Figure 24 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 9th embodiment of the present invention.
Figure 25 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the tenth embodiment of the present invention.
Figure 26 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 11 embodiment of the present invention.
Figure 27 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 12 embodiment of the present invention.
Figure 28 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 13 embodiment of the present invention.
[embodiment]
Fig. 4 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device first embodiment of the present invention, semi-penetrating semi-reflecting type liquid crystal displaying device 2 of the present invention comprises that second substrate 21, that one first substrate 22, one and first substrate 22 are oppositely arranged is clipped in the liquid crystal layer 23 between this two substrate 22,21, and this liquid crystal layer 23 comprises a plurality of eurymeric liquid crystal molecules (indicating).
The outer surface of this first substrate 22 sets gradually on one on the compensating plate 224, one first on the retardation plate 223, one second Polarizer 221 on the retardation plate 222 and.The inner surface of this first substrate 22 sets gradually a public electrode 24 and an alignment film 28.This public electrode 24 is transparent conductive materials, as tin indium oxide or indium zinc oxide.
The outer surface of this second substrate 21 sets gradually compensating plate 214, one first time retardation plate 213, one second time retardation plate 212 and Polarizer 211 once.One transparency electrode 27 is formed on the inner surface of second substrate 21, one passivation layer 26, a reflecting electrode 25 and an alignment film 29 are formed on this transparency electrode 27 successively, wherein this reflecting electrode 25 has one with passivation layer 26 and penetrates opening 251, and the light that sends from backlight module (figure does not show) can penetrate opening 251 from this and be incident to liquid crystal layer 23.This transparency electrode 27 constitutes pixel electrode with reflecting electrode 25, produces an electric field perpendicular to substrate 22,21 24 of public electrodes and shows to realize image with the deflection of controlling liquid crystal molecule.This transparency electrode 27 is transparent conductive material tin indium oxides, the metallic aluminium (Al) that this reflecting electrode 25 is tool high reflectances.This pixel electrode, public electrode 24 and liquid crystal layer 23 constitute a pixel region.Wherein, with reflecting electrode 25 pairing pixel regions be reflector space, with transparency electrode 27 pairing pixel regions be penetration region.The liquid crystal layer 23 that external environment light passes through reflector space by liquid crystal layer 23 backs of reflector space once more by the reflex of reflecting electrode 25 realizes that image shows.The light that backlight module sends passes the liquid crystal layer 23 that passes saturating zone and realizes that image shows.The thickness of the liquid crystal layer 23 of reflector space is d
21, the thickness of the liquid crystal layer 23 of penetration region is d
22, d wherein
21＜d
22, d in the present embodiment
21Be approximately d
221/2nd.
Should go up compensating plate 224 and down compensating plate 214 are biaxial compensation films, this on second retardation plate 222 and second time retardation plate 212 are 1/2nd wave plates (λ/2), this on first retardation plate 223 and first time retardation plate 213 are quarter-wave plate (λ/4).This wave plate is to make according to a certain certain wavelengths λ=550nm, and this wavelength is positioned at visible light (in the middle of the scope of 380nm～780nm).
Please refer to Fig. 5, following Polarizer 211 have the polarization axle 211 of a horizontal direction ', the polarization axle 221 of last Polarizer 221 ' vertical with the polarization axle 211 ' direction of following Polarizer 211.The optical axis 212 of retardation plate 222 on second time retardation plate 212 and second ', 222 ' orthogonal, and the optical axis 212 of second time retardation plate 212 ' with the polarization axle 211 of following Polarizer 211 ' become θ angle, θ is 8 °～22 ° and 68 °～82 ° arbitrary values that scope is interior, and wherein present embodiment θ is 10 °.The optical axis 213 of retardation plate 223 on first time retardation plate 213 and first ', 223 ' orthogonal, and the optical axis 213 of first time retardation plate 213 ' with the polarization axle 211 of following Polarizer 211 ' become 2 θ ± 45 °.
The liquid crystal layer 23 of reflector space reaches the phase delay relation that goes up compensating plate 224 and satisfies formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F224＝m(λ/2)，m＝0，1，2，...
Wherein, Ret
LCR(V
Off) phase delay of the liquid crystal layer 23 of reflector space when being bright attitude, Ret
LCR(V
On) phase delay of reflector space liquid crystal layer 23 when being dark attitude, Ret
F224Be the phase delay that goes up compensating plate 224.
The phase delay relation of the liquid crystal layer 23 of penetration region, last compensating plate 224 and following compensating plate 214 satisfies formula:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F224+Ret
F214＝mλ，m＝0，1，2，...
Wherein, Ret
LCT(V
Off) phase delay of penetration region liquid crystal layer 23 when being bright attitude, Ret
LCT(V
On) phase delay of liquid crystal layer 23 when being dark attitude, Ret
F224, Ret
F214Be respectively to go up compensating plate 224 to reach the phase delay of compensating plate 214 down.
In the present embodiment, Ret
LCR(0V)-Ret
LCR(3.7V)=λ/4
Ret
LCR(3.7V)+Ret
F224＝0
Ret
LCT(0V)-Ret
LCT(3.7V)＝λ/2
Ret
LCT(3.7V)+Ret
F224+Ret
F214＝0
Please refer to Fig. 6, is the running synoptic diagram of these semi-penetrating semi-reflecting type liquid crystal displaying device 2 reflector spaces.When not applying voltage, external ambient light is through being transformed into the polarization axle 221 ' parallel linearly polarized light of polarization direction and last Polarizer 221 behind the last Polarizer 221, wavelength is that the linearly polarized light of 550nm turns over 2 θ angles by retardation plate (1/2nd wave plates) 222 rear polarizer directions on second, still is linearly polarized light.Because of the optical axis 223 of retardation plate 223 (quarter-wave plate) on first ' with the polarization axle 221 of last Polarizer 221 ' become 2 θ+45 ° angle, so the linearly polarized light of retardation plate 222 outgoing changes circularly polarized light into after by retardation plate 223 on first on second, the elliptically polarized light of other wavelength also changes circularly polarized light into, so the linearly polarized light of nearly all wavelength is by all changing circularly polarized light into behind the retardation plate 222 on the retardation plate 223 and second on first.The liquid crystal molecule along continuous straight runs of liquid crystal layer 23 is arranged when not applying voltage, last compensating plate 224 is λ/4 with the optical delay summation of reflector space liquid crystal layer 23, circularly polarized light is reflected also once more process liquid crystal layer 23 and is gone up compensating plate 224 by reflecting electrode 25 by last compensating plate 224 and liquid crystal layer 23 backs, circularly polarized light reaches the optical effect of going up compensating plate 224 by liquid crystal layer 23 twice and is equivalent to 1/2nd wave plates, so circularly polarized light changes the opposite circularly polarized light of sense of rotation into by liquid crystal layer 23 and after going up compensating plate 224.
This circularly polarized light is transformed into the optical axis 222 of retardation plate 222 on the polarization direction and second ' the become linearly polarized light at θ angle after by retardation plate 223 on first, this linearly polarized light turns over 2 θ angles clockwise through retardation plate 222 rear polarizer directions on second, parallel with the polarization axis direction of last Polarizer 221 and can be by going up Polarizer 221, this moment, this semi-penetrating semi-reflecting type liquid crystal displaying device 2 shows bright attitude.
When applying voltage, external ambient light is consistent when entering the operation before the liquid crystal layer 23 after by last Polarizer 221 and not applying voltage.When applying voltage, the liquid crystal molecule edge is perpendicular to substrate 22,21 direction is arranged, residual phase near substrate postpones by last compensating plate 224 compensation, making the liquid crystal layer 23 and the phase delay of last compensating plate 224 summations is zero, circularly polarized light is reflected also once more process liquid crystal layer 23 and is gone up compensating plate 224 rear polarizer states by reflecting electrode 25 by liquid crystal layer 23 backs and do not change, this circularly polarized light changes linearly polarized light into after by retardation plate 223 on first, the optical axis 223 of retardation plate 223 ' angle at 45 on the polarization direction of this linearly polarized light and first, with second on optical axis 222 ' the become 90 °+θ degree angle of retardation plate 222.This linearly polarized light by retardation plate 222 on second after, polarization direction Rotate 180 °+2 θ degree angles, with the polarization axle 221 of last Polarizer 221 ' vertical, so light can not pass through last Polarizer 221, the dark attitude of these semi-penetrating semi-reflecting type liquid crystal displaying device 2 demonstrations.
Please refer to Fig. 7, is the running synoptic diagram of these semi-penetrating semi-reflecting type liquid crystal displaying device 2 penetration region.The operation of penetration region and the operation of reflector space are roughly the same, the liquid crystal layer 23 of penetration region is λ/2 with the optical delay summation of upper and lower compensating plate 224,214, so twice of effect and light are identical with last compensating plate 224 by reflector space liquid crystal layer 23.
Because second time retardation plate be to the linearly polarized light tool compensating action of incident,, effectively improve the utilization factor of light so most of visible light changes circularly polarized light into during by first time retardation plate 213.Upper and lower compensating plate 224,214 can be when applying voltage liquid crystal molecule and not exclusively arrange and the residue optical phase put-off that causes compensates perpendicular to substrate 22,21, thereby the light leakage phenomena when reducing dark attitude improves the contrast of this semi-penetrating semi-reflecting type liquid crystal displaying device 2.In addition, this time compensating plate 214 and last compensating plate 224 also can compensate contrast and the aberration under the different visual angles, improve the viewing angle characteristic of this semi-penetrating semi-reflecting type liquid crystal displaying device 2.
Please refer to Fig. 8, is penetrance and voltage (T-V) curve map, the T-V curve of reflector space and the T-V curves overlapped of penetration region of this semi-penetrating semi-reflecting type liquid crystal displaying device 2.When not applying voltage, the penetrance maximum; Along with the increase gradually that applies voltage value, penetrance descends, and when voltage was 3.7 volts (V), penetrance was minimum, so this semi-penetrating semi-reflecting type liquid crystal displaying device 2 has lower driving voltage.Please refer to Fig. 9 and Figure 10, is respectively the visual angle figure of these semi-penetrating semi-reflecting type liquid crystal displaying device 2 reflector spaces and penetration region, as shown in the figure, and the good viewing angle characteristic of these semi-penetrating semi-reflecting type liquid crystal displaying device 2 tools.
Please refer to Figure 11, is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device second embodiment of the present invention.This semi-penetrating semi-reflecting type liquid crystal displaying device 3 and first embodiment are roughly the same, it comprises and is formed on one on first substrate, 22 outer surfaces on the compensating plate 324, one first on the retardation plate 323, one second Polarizer 321 on the retardation plate 322 and successively, once compensating plate 314, one first time retardation plate 313, one second time retardation plate 312 and once Polarizer 311 be formed at the outer surface of second substrate 21 successively.Wherein, this on first retardation plate 323 and first time retardation plate 313 are quarter-wave plates, this on second retardation plate 322 and second time retardation plate 312 are 1/2nd wave plates, should go up compensating plate 324 is A-plate compensating plate with following compensating plate 314, this A-plate compensating plate is made by uniaxial negative crystal, and A-plate compensating plate can compensate the contrast of forward.
The polarization axle of following Polarizer 311 tools one horizontal direction, the polarization axle of last Polarizer 321 is vertical with the polarization axis direction of following Polarizer 311.The optical axis direction of retardation plate 322 is orthogonal on second time retardation plate 312 and second, and the optical axis direction of second time retardation plate 312 becomes the θ angle with the polarization axis direction of following Polarizer 311, θ is 8 °～22 ° and 68 °～82 ° arbitrary values that scope is interior, and wherein present embodiment θ is 10 °.The optical axis direction of retardation plate 323 is orthogonal on first time retardation plate 313 and first, and the optical axis direction of first time retardation plate 313 becomes 2 θ ± 45 ° with the polarization axis direction of following Polarizer 311.
The liquid crystal layer 23 of reflector space reaches the phase delay that goes up compensating plate 324 and satisfies formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F324＝±m(λ/2)，m＝0，1，2，...
Wherein, Ret
LCR(V
Off) phase delay of the liquid crystal layer 23 of reflector space when being bright attitude, Ret
LCR(V
On) phase delay of reflector space liquid crystal layer 23 when being dark attitude, Ret
F324Be the phase delay that goes up compensating plate 324.
The phase delay relation of the liquid crystal layer 23 of penetration region, last compensating plate 324 and following compensating plate 314 satisfies formula:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F324+Ret
F314＝±mλ，m＝0，1，2，...
Wherein, Ret
LCT(V
Off) phase delay of penetration region liquid crystal layer 23 when being bright attitude, Ret
LCT(V
On) phase delay of liquid crystal layer 23 when being dark attitude, Ret
F324, Ret
F314Be respectively to go up compensating plate 324 to reach the phase delay of compensating plate 314 down.
In the present embodiment, Ret
LCR(0V)-Ret
LCR(4V)=λ/4
Ret
LCR(4V)+Ret
F324＝0
Ret
LCT(0V)-Ret
LCT(4V)＝λ/2
Ret
LCT(4V)+Ret
F324+Ret
F314＝0
Please refer to Figure 12, is the T-V curve map of semi-penetrating semi-reflecting type liquid crystal displaying device 3 of the present invention.When the voltage that applies was 4 volts (V), this semi-penetrating semi-reflecting type liquid crystal displaying device 3 showed dark attitude, has lower driving voltage.
Please be respectively the visual angle figure of these semi-penetrating semi-reflecting type liquid crystal displaying device 3 reflector spaces and penetration region simultaneously with reference to Figure 13 and Figure 14.This semi-penetrating semi-reflecting type liquid crystal displaying device 3 has high-contrast as can be known, and the maximum-contrast of reflector space can reach 400, and the maximum-contrast of penetration region can reach 1000.
Please refer to Figure 15, is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 3rd embodiment of the present invention.This semi-penetrating semi-reflecting type liquid crystal displaying device 4 and second embodiment are roughly the same, it comprise be formed at successively first substrate, 22 outer surfaces one second on 421, one second times compensating plates of Polarizer 415 on the retardation plate 422 and on the retardation plate 423, one second on the compensating plate 424, one first on the compensating plate 425, one first, one first time compensating plate 414, one first time retardation plate 413, one second time retardation plate 412 and once Polarizer 411 be formed at the outer surface of second substrate 21 successively.Wherein, this on first retardation plate 423 and first time retardation plate 413 are quarter-wave plates, this on second retardation plate 422 and second time retardation plate 412 are 1/2nd wave plates, this on first compensating plate 424 and first time compensating plate 414 are A-plate compensating plates, this A-plate compensating plate is made by uniaxial negative crystal.This on second compensating plate 425 and second time compensating plate 415 are disklike molecule compensate film (DiscoticMolecular film).This on second compensating plate 425 and second time compensating plate 415 can compensate contrast and aberration under the different visual angles, to improve the visual angle.
On the liquid crystal layer 23 of reflector space, first on the compensating plate 424 and second phase delay of compensating plate 425 satisfy formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F424+Ret
F425＝mλ，m＝0，1，2，...
Wherein, Ret
F424, Ret
F425Be respectively the phase delay of compensating plate 425 on the compensating plate 424 and second on first.
The phase delay relation of compensating plate 425 and second time compensating plate 415 satisfies formula on the compensating plate 424 on the liquid crystal layer 23 of penetration region, first, first time compensating plate 414, second:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F424+Ret
F414+Ret
F425+Ret
F415＝mλ，m＝0，1，2，...
Wherein, Ret
F424, Ret
F414, Ret
F425, Ret
F415Be respectively the phase delay of compensating plate 425 and second time compensating plate 415 on the compensating plate 424 on first, first time compensating plate sheet 414, second.
In the present embodiment, Ret
LCR(0V)-Ret
LCR(3V)=λ/4
Ret
LCR(3V)+Ret
F424+Ret
F425＝0
Ret
LCT(0V)-Ret
LCT(3V)＝λ/2
Ret
LCT(3V)+Ret
F424+Ret
F414+Ret
F425+Ret
F415＝0
Following Polarizer 411 has the polarization axle of a horizontal direction, and the polarization axle of last Polarizer 421 is vertical with the polarization axis direction of following Polarizer 411.The optical axis direction of retardation plate 422 is orthogonal on second time retardation plate 412 and second, and the optical axis direction of second time retardation plate 412 becomes the θ angle with the polarization axis direction of following Polarizer 411, θ is 8 °～22 ° and 68 °～82 ° arbitrary values that scope is interior, and wherein present embodiment θ is 10 °.The optical axis direction of retardation plate 423 is orthogonal on first time retardation plate 413 and first, and the optical axis direction of first time retardation plate 413 becomes 2 θ ± 45 ° with the polarization axis direction of following Polarizer 411.
Please refer to Figure 16, is the T-V curve map of semi-penetrating semi-reflecting type liquid crystal displaying device 4 of the present invention.When the voltage that applies was 3 volts (V), this semi-penetrating semi-reflecting type liquid crystal displaying device 3 showed dark attitude, has lower driving voltage.
Please be respectively the visual angle figure of these semi-penetrating semi-reflecting type liquid crystal displaying device 4 reflector spaces and penetration region simultaneously with reference to Figure 17 and Figure 18, the maximum-contrast of penetration region can reach 700.
Please refer to Figure 19, is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 4th embodiment of the present invention.This semi-penetrating semi-reflecting type liquid crystal displaying device 5 and first embodiment are roughly the same, on one on the compensating plate 524, on the retardation plate 522 and a Polarizer 521 be formed at successively on the outer surface of first substrate 22, once compensating plate 514, once retardation plate 512 and once Polarizer 511 be formed at the outer surface of second substrate 21 successively.Wherein, this retardation plate the 512, the 522nd, quarter-wave plate, this compensating plate the 524, the 514th, A-plate compensating plate, this A-plate compensating plate is made by the minus uniaxial crystal.Following Polarizer 511 has the polarization axle of a horizontal direction, and the polarization axle of last Polarizer 521 is vertical with the polarization axis direction of following Polarizer 511.Following retardation plate 512 is orthogonal with the optical axis direction of last retardation plate 522, and the optical axis direction of retardation plate 512 becomes miter angle with the polarization axis direction of following Polarizer 511 down.
The phase delay of the liquid crystal layer 23 of reflector space, last compensating plate 524 and down last compensating plate 514 satisfies formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F524＝±m(λ/2)，m＝0，1，2，...
Wherein, Ret
F524Be the phase delay that goes up compensating plate 524.
The phase delay relation of the liquid crystal layer 23 of penetration region, last compensating plate 524, following compensating plate 514 satisfies formula:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F524+Ret
F514＝±mλ，m＝0，1，2，...
In the present embodiment, Ret
LCR(0V)-Ret
LCR(4V)=λ/4
Ret
LCR(4V)+Ret
F524＝0
Ret
LCT(0V)-Ret
LCT(4V)＝λ/2
Ret
LCT(4V)+Ret
F524+Ret
F514＝0
In the present embodiment, this compensating plate 524,514 also can be a biaxial compensation film.
Please refer to Figure 20, is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 5th embodiment of the present invention.This semi-penetrating semi-reflecting type liquid crystal displaying device 6 and first embodiment are roughly the same, it comprises and is formed on one on first substrate, 22 outer surfaces on the compensating plate 624, one first on the retardation plate 623, one second Polarizer 621 on the retardation plate 622 and successively, once compensating plate 614, one first time retardation plate 613, one second time retardation plate 612 and once Polarizer 611 be formed at the outer surface of second substrate 21 successively.Wherein, this on first retardation plate 623 and first time retardation plate 613 are quarter-wave plates, this on second retardation plate 622 and second time retardation plate 612 are 1/2nd wave plates, should go up compensating plate 624 is disklike molecule films with following compensating plate 614, can compensate the contrast and the visual angle of this semi-penetrating semi-reflecting type liquid crystal displaying device 6.
The liquid crystal layer 23 of reflector space reaches the phase delay relation that goes up compensating plate 624 and satisfies formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F624＝m(λ/2)，m＝0，1，2，...
Wherein, Ret
F624Be the phase delay that goes up compensating plate 624.
The phase delay relation of the liquid crystal layer 23 of penetration region, last compensating plate 624 and following compensating plate 614 satisfies formula:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F624+Ret
F614＝mλ，m＝0，1，2，...
Wherein, Ret
F624, Ret
F614Be respectively to go up compensating plate 624 to reach the phase delay of compensating plate 614 down.
Following Polarizer 611 has the polarization axle of a horizontal direction, and the polarization axle of last Polarizer 621 is vertical with the polarization axis direction of following Polarizer 611.The optical axis direction of retardation plate 622 is orthogonal on second time retardation plate 612 and second, and the optical axis direction of second time retardation plate 612 becomes the θ angle with the polarization axis direction of following Polarizer 611, θ is 8 °～22 ° and 68 °～82 ° arbitrary values that scope is interior, and wherein present embodiment θ is 10 °.The optical axis direction of retardation plate 623 is orthogonal on first time retardation plate 613 and first, and the optical axis direction of first time retardation plate 613 becomes 2 θ ± 45 ° with the polarization axis direction of following Polarizer 611.
Please refer to Figure 21, is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 6th embodiment of the present invention.This semi-penetrating semi-reflecting type liquid crystal displaying device 7 and the 5th embodiment are roughly the same, and it is only in being provided with compensating plate 624 between the retardation plate 623 on first substrate 22 and first, and between second substrate 21 and first time retardation plate 613 compensating plate are not set.
The liquid crystal layer 23 of reflector space reaches the phase delay relation that goes up compensating plate 624 and satisfies formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F624＝m(λ/2)，m＝0，1，2，...
The phase delay relation of the liquid crystal layer 23 of penetration region, last compensating plate 624 satisfies formula:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F624＝mλ，m＝0，1，2，...
Please refer to Figure 22, is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 7th embodiment of the present invention.This semi-penetrating semi-reflecting type liquid crystal displaying device 8 and the 5th embodiment are roughly the same, and it only is provided with compensating plate 614 between second substrate 21 and first time retardation plate 613, and between the retardation plate 623 compensating plate is not set on first substrate 22 and first.
The phase delay relation of the liquid crystal layer 23 of reflector space satisfies formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)＝m(λ/2)，m＝0，1，2，...
The phase delay relation of the liquid crystal layer 23 of penetration region, following compensating plate 614 satisfies formula:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F614＝mλ，m＝0，1，2，...
Please refer to Figure 23, is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 8th embodiment of the present invention.This semi-penetrating semi-reflecting type liquid crystal displaying device 9 and the 3rd embodiment are roughly the same, it comprise be formed at successively first substrate, 22 outer surfaces one second on 921, one first times compensating plates of Polarizer 914 on the retardation plate 922 and on the retardation plate 923, one second on the compensating plate 924, one first on the compensating plate 925, one first, one first time retardation plate 913, one second time retardation plate 912 and once Polarizer 911 be formed at the outer surface of second substrate 21 successively.Wherein, this on first retardation plate 923 and first time retardation plate 913 are quarter-wave plates, this on second retardation plate 922 and second time retardation plate 912 are 1/2nd wave plates, this on first compensating plate 924 and first time compensating plate 914 are A-plate compensating plates, this A-plate compensating plate is made by uniaxial negative crystal.This on second compensating plate 925 are disklike molecule compensate film (Discotic Molecular film).
On the liquid crystal layer 23 of reflector space, first on the compensating plate 924 and second phase delay of compensating plate 925 satisfy formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F924+Ret
F925＝mλ，m＝0，1，2，...
Wherein, Ret
F924, Ret
F925Be respectively on first the phase delay of compensating plate 925 on the compensating plate 924 and second.
The phase delay relation of compensating plate 925 satisfies formula on the compensating plate 924 on the liquid crystal layer 23 of penetration region, first, first time compensating plate 914, second:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F924+Ret
F914+Ret
F925＝mλ，m＝0，1，2，...
Wherein, Ret
F914Be the phase delay of first time compensating plate sheet 914.
Please refer to Figure 24, is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 9th embodiment of the present invention.This semi-penetrating semi-reflecting type liquid crystal displaying device 10 and the 8th embodiment are roughly the same, between second substrate 21 and first time compensating plate 914 compensating plate 915 is set one second time, this second time compensating plate 915 is disklike molecule films, and between the compensating plate 924 compensating plate is not set on first substrate 22 and first.
The phase delay of compensating plate 924 satisfies formula on the liquid crystal layer 23 and first of reflector space:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F924＝mλ，m＝0，1，2，...
The phase delay relation of compensating plate 924 on the liquid crystal layer 23 of penetration region, first, first time compensating plate 914, second time compensating plate 915 satisfies formula:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F924+Ret
F914+Ret
F915＝mλ，m＝0，1，2，...
Wherein, Ret
F915Be the phase delay of second time compensating plate sheet 915.
Please refer to Figure 25, is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the tenth embodiment of the present invention.This semi-penetrating semi-reflecting type liquid crystal displaying device 11 and second embodiment are roughly the same, it comprise be formed at successively on the retardation plate on the compensating plate on one on first substrate, 22 outer surfaces 1124, one first 1123, one second 1121, one first times retardation plates of Polarizer on the retardation plate 1122 and one 1113, one second time retardation plate 1112 and once Polarizer 1111 be formed at the outer surface of second substrate 21 successively.Wherein, this on first retardation plate 1123 and first time retardation plate 1113 are quarter-wave plates, this on second retardation plate 1122 and second time retardation plate 1112 are 1/2nd wave plates, should go up compensating plate 1124 is A-plate compensating plates, this A-plate compensating plate is made by uniaxial negative crystal, and A-plate compensating plate can compensate the contrast of forward.
The liquid crystal layer 23 of reflector space reaches the phase delay that goes up compensating plate 1124 and satisfies formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F1124＝±m(λ/2)，m＝0，1，2，...
Wherein, Ret
F1124Be the phase delay that goes up compensating plate 1124.
The liquid crystal layer 23 of penetration region reaches the phase delay relation that goes up compensating plate 1124 and satisfies formula:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F1124＝±mλ，m＝0，1，2，...
Please refer to Figure 26, is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 11 embodiment of the present invention.This semi-penetrating semi-reflecting type liquid crystal displaying device 12 and the tenth embodiment are roughly the same, and once compensating plate 1114 is formed between second substrate 21 and the first time retardation plate 1113, and this time compensating plate is an A-plate compensating plate.
The phase delay of the liquid crystal layer 23 of reflector space satisfies formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)＝±m(λ/2)，m＝0，1，2，...
The liquid crystal layer 23 of penetration region reaches down, and the phase delay relation of compensating plate 1114 satisfies formula:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F1114＝±mλ，m＝0，1，2，...
Wherein, Ret
F1114The phase delay of compensating plate 1114 under being.
Please refer to Figure 27, is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 12 embodiment of the present invention.This semi-penetrating semi-reflecting type liquid crystal displaying device 13 and the 4th embodiment are roughly the same, on one on the compensating plate 1324, on the retardation plate 1322 and a Polarizer 1321 be formed at successively on the outer surface of first substrate 22, once retardation plate 1312 and once Polarizer 1311 be formed at the outer surface of second substrate 21 successively.Wherein, this retardation plate the 1312, the 1322nd, quarter wave plate, this compensating plate 1324 are A-plate compensating plates, this A-plate compensating plate is made by the minus uniaxial crystal.Following Polarizer 1311 has the polarization axle of a horizontal direction, and the polarization axle of last Polarizer 1321 is vertical with the polarization axis direction of following Polarizer 1311.Following retardation plate 1312 is orthogonal with the optical axis direction of last retardation plate 1322, and the optical axis direction of retardation plate 1312 becomes miter angle with the polarization axis direction of following Polarizer 1311 down.
The liquid crystal layer 23 of reflector space reaches the phase delay that goes up compensating plate 1324 and satisfies formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F1324＝±m(λ/2)，m＝0，1，2，...
Wherein, Ret
F1324Be the phase delay that goes up compensating plate 1324.
The liquid crystal layer 23 of penetration region reaches the phase delay relation that goes up compensating plate 1324 and satisfies formula:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F1324＝±mλ，m＝0，1，2，...
Please refer to Figure 28, is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 13 embodiment of the present invention.This semi-penetrating semi-reflecting type liquid crystal displaying device 14 and the 12 embodiment are roughly the same, and once compensating plate 1314 is formed between second substrate 21 and the following retardation plate 1312, and this time compensating plate 1314 is A-plate compensating plates.
The phase delay of the liquid crystal layer 23 of reflector space satisfies formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)＝±m(λ/2)，m＝0，1，2，...
The liquid crystal layer 23 of penetration region reaches down, and the phase delay relation of compensating plate 1314 satisfies formula:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F1314＝±mλ，m＝0，1，2，...
Wherein, Ret
F1314The phase delay of compensating plate 1314 under being.
Among the present invention, this retardation plate and compensating plate can all or part ofly be arranged on the inner surface of close liquid crystal layer of corresponding substrate; A-plate compensating plate also can be made by positive uniaxial crystal.
Claims (55)
1. semi-penetrating semi-reflecting type liquid crystal displaying device, comprise one first substrate, one second substrate, one is sandwiched in the liquid crystal layer between this first substrate and this second substrate, one is arranged on the last Polarizer of first substrate, one is arranged on the following Polarizer of second substrate, one is arranged on retardation plate on first between Polarizer and the liquid crystal layer, one is arranged on down first time retardation plate between Polarizer and the liquid crystal layer, one public electrode and that is arranged on first substrate is formed on the pixel electrode of second substrate, wherein the liquid crystal molecule of this liquid crystal layer is a horizontal direction matching, this on first retardation plate and this first time retardation plate be quarter-wave plate, pixel electrode, public electrode and the liquid crystal layer that is sandwiched in wherein constitute a plurality of pixel regions, this each pixel region has a reflector space and a penetration region, it is characterized in that: compensating plate is arranged on first between the retardation plate and liquid crystal layer on one first, one first time compensating plate is arranged between first time retardation plate and the liquid crystal layer, and the phase delay relation of compensating plate satisfies formula on the liquid crystal layer of reflector space and this first:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...；
Ret
LCR(V
On)+∑Ret
F1＝±m(λ/2)，m＝0，1，2，...；
Wherein, Ret
LCR(V
Off) be the phase delay of the liquid crystal layer of reflector space when not applying voltage, Ret
LCR(V
On) be the phase delay of the liquid crystal layer of reflector space when applying voltage, ∑ Ret
F1Be the phase delay of this compensating plate on first, λ is value in visible wavelength range.
2. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 1 is characterized in that: compensating plate and first time compensating plate are biaxial compensation films on first.
3. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 2 is characterized in that: the polarization axle of going up Polarizer is vertical with the polarization axle of following Polarizer.
4. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 3 is characterized in that: the optical axis of retardation plate is vertical on the optical axis of first time retardation plate and first.
5. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 1, it is characterized in that: comprise that further one is separately positioned on Polarizer and first between the retardation plate and retardation plate and second time retardation plate on second between Polarizer and the first time retardation plate down, wherein this on second retardation plate and second time retardation plate be 1/2nd wave plates.
6. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 5 is characterized in that: the optical axis of retardation plate is vertical on the optical axis of second time retardation plate and second.
7. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 6 is characterized in that: the optical axis of second time retardation plate has an angle theta with the polarization axle of following Polarizer.
8. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 7 is characterized in that: the angle between the polarization axle of the optical axis of first time retardation plate and following Polarizer is 2 θ ± 45 °.
9. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 8 is characterized in that: θ is between 8 °～22 ° or 68 °～82 °.
10. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 1 is characterized in that: the phase delay of compensating plate, first time compensating plate relation satisfies formula on the liquid crystal layer of penetration region and first:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F1+Ret
F2＝±mλ，m＝0，1，2，...，
Wherein, Ret
LCT(V
Off) be the phase delay of the liquid crystal layer of penetration region when not applying voltage, Ret
LCT(V
On) be the phase delay of the liquid crystal layer of penetration region when applying voltage, Ret
F1, Ret
F2Be respectively the phase delay of this compensating plate on first and the phase delay of this first time compensating plate.
11. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 1 is characterized in that: it is orthogonal with the polarization axle of following Polarizer to go up Polarizer, and the optical axis direction of retardation plate and first time retardation plate is orthogonal on first.
12. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 11 is characterized in that: the angle of the polarization axle of the optical axis of first time retardation plate and this time Polarizer is 45 °.
13. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 1 is characterized in that: the thickness of liquid crystal layer of penetration region is greater than the thickness of liquid crystal layer of reflector space.
14. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 1 is characterized in that: pixel electrode further comprises a transparency electrode and a reflecting electrode.
15. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 14 is characterized in that: comprise that further one is arranged on the passivation layer between this transparency electrode and reflecting electrode.
16. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 15 is characterized in that: reflecting electrode and this passivation layer have one and penetrate opening.
17. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 1 is characterized in that: further comprise one be respectively formed at first substrate and second substrate inboard and with the contacted alignment film of liquid crystal layer.
18. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 1 is characterized in that: this on first compensating plate and first time compensating plate be A-plate compensating plate.
19. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 18 is characterized in that: A-plate compensating plate is made by uniaxial negative crystal material or positive uniaxial crystal material.
20. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 19 is characterized in that: the polarization axle of going up Polarizer is vertical with the polarization axle of following Polarizer.
21. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 20 is characterized in that: the optical axis of retardation plate is vertical on the optical axis of first time retardation plate and first.
22. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 21 is characterized in that: the angle of the polarization axle of the optical axis of first time retardation plate and this time Polarizer is 45 °.
23. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 19, it is characterized in that: comprise that further one is separately positioned on Polarizer and first between the retardation plate and retardation plate and second time retardation plate on second between Polarizer and the first time retardation plate down, wherein retardation plate and second time retardation plate are 1/2nd wave plates on second.
24. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 23 is characterized in that: the optical axis of retardation plate is vertical on the optical axis of second time retardation plate and second.
25. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 24 is characterized in that: the optical axis of second time retardation plate has an angle theta with the polarization axle of following Polarizer.
26. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 25 is characterized in that: the angle of the polarization axle of the optical axis of first time retardation plate and following Polarizer is 2 θ ± 45 °.
27. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 26 is characterized in that: θ is between 8 °～22 ° or 68 °～82 °.
28. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 18 is characterized in that: further comprise one be respectively formed on first between the compensating plate and liquid crystal layer and first time compensating plate and liquid crystal layer between second on compensating plate and second time compensating plate.
29. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 28 is characterized in that: compensating plate and second time compensating plate are the disklike molecule films on second.
30. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 29 is characterized in that: on the liquid crystal layer of reflector space, first on the compensating plate and second phase relation of compensating plate satisfy formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F1+Ret
F3＝m(λ/2)，m＝0，1，2，...
Wherein, Ret
LCR(V
Off) be the phase delay of the liquid crystal layer of reflector space when not applying voltage, Ret
LCR(V
On) be the phase delay of the liquid crystal layer of reflector space when applying voltage, Ret
F1Be the phase delay of compensating plate on first, Ret
F3Be the phase delay of compensating plate on second.
31. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 30 is characterized in that: the phase delay relation of compensating plate and second time compensating plate satisfies formula on compensating plate on the liquid crystal layer of penetration region, first, the first time compensating plate, second:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F1+Ret
F2+Ret
F3+Ret
F4＝mλ，m＝0，1，2，...
Wherein, Ret
LCT(V
Off) be the phase delay of the liquid crystal layer of penetration region when not applying voltage, Ret
LCT(V
On) be the phase delay of the liquid crystal layer of penetration region when applying voltage, Ret
F1, Ret
F2Be respectively the phase delay of compensating plate and first time compensating plate on first, Ret
F3, Ret
F4Be respectively the phase delay of compensating plate and second time compensating plate on second.
32. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 18 is characterized in that: comprise that further one is formed on first compensating plate on second between the compensating plate and liquid crystal layer, wherein this on second compensating plate be the disklike molecule film.
33. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 32 is characterized in that: on the liquid crystal layer of reflector space, first on the compensating plate and second phase relation of compensating plate satisfy formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F1+Ret
F3＝m(λ/2)，m＝0，1，2，...
Wherein, Ret
LCR(V
Off) be the phase delay of the liquid crystal layer of reflector space when not applying voltage, Ret
LCR(V
On) be the phase delay of the liquid crystal layer of reflector space when applying voltage, Ret
F1Be the phase delay of compensating plate on first, Ret
F3Be the phase delay of compensating plate on second.
34. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 33 is characterized in that: the phase delay relation of compensating plate satisfies formula on compensating plate on the liquid crystal layer of penetration region, first, the first time compensating plate and second:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F1+Ret
F2+Ret
F3＝mλ，m＝0，1，2，...
Wherein, Ret
LCT(V
Off) be the phase delay of the liquid crystal layer of penetration region when not applying voltage, Ret
LCT(V
On) be the phase delay of the liquid crystal layer of penetration region when applying voltage, Ret
F1, Ret
F2Be respectively the phase delay of compensating plate and first time compensating plate on first, Ret
F3Be the phase delay of compensating plate on second.
35. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 18 is characterized in that: comprise that further one is formed on second time compensating plate between first time compensating plate and the liquid crystal layer, wherein this second time compensating plate is the disklike molecule film.
36. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 35 is characterized in that: the phase relation of compensating plate satisfies formula on the liquid crystal layer of reflector space and first:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F1＝m(λ/2)，m＝0，1，2，...
Wherein, Ret
LCR(V
Off) be the phase delay of the liquid crystal layer of reflector space when not applying voltage, Ret
LCR(V
On) be the phase delay of the liquid crystal layer of reflector space when applying voltage, Ret
F1Be the phase delay of compensating plate on first.
37. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 36 is characterized in that: the phase delay of compensating plate, first time compensating plate and second time compensating plate relation satisfies formula on the liquid crystal layer of penetration region, first:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F1+Ret
F2+Ret
F3＝mλ，m＝0，1，2，...
Wherein, Ret
LCT(V
Off) be the phase delay of the liquid crystal layer of penetration region when not applying voltage, Ret
LCT(V
On) be the phase delay of the liquid crystal layer of penetration region when applying voltage, Ret
F1, Ret
F2Be respectively the phase delay of compensating plate and first time compensating plate on first, Ret
F3Be the phase delay of second time compensating plate.
38. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 1 is characterized in that: compensating plate and first time compensating plate are the disklike molecule films on first, and the phase delay relation of compensating plate satisfies formula on the liquid crystal layer of this reflector space and first:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F1＝m(λ/2)，m＝0，1，2，...
Wherein, Ret
LCR(V
Off) be the phase delay of the liquid crystal layer of reflector space when not applying voltage, Ret
LCR(V
On) be the phase delay of the liquid crystal layer of reflector space when applying voltage, Ret
F1Be the phase delay of compensating plate on first.
39. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 38, it is characterized in that: comprise that further one is separately positioned on Polarizer and first between the retardation plate and retardation plate and second time retardation plate on second between Polarizer and the first time retardation plate down, wherein retardation plate and second time retardation plate are 1/2nd wave plates on second.
40. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 39 is characterized in that: the phase delay of compensating plate, first time compensating plate relation satisfies formula on the liquid crystal layer of penetration region and first:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F1+Ret
F2＝mλ，m＝0，1，2，...
Wherein, Ret
LCT(V
Off) be the phase delay of the liquid crystal layer of penetration region when not applying voltage, Ret
LCT(V
On) be the phase delay of the liquid crystal layer of penetration region when applying voltage, Ret
F1, Ret
F2Be respectively the phase delay of compensating plate and first time compensating plate on first.
41. semi-penetrating semi-reflecting type liquid crystal displaying device, comprise one first substrate, one second substrate, one is sandwiched in the liquid crystal layer between this first substrate and this second substrate, one is arranged on the last Polarizer of first substrate, one is arranged on the following Polarizer of second substrate, one is arranged on retardation plate on first between Polarizer and the liquid crystal layer, one is arranged on down first time retardation plate between Polarizer and the liquid crystal layer, one public electrode and that is arranged on first substrate is formed on the pixel electrode of second substrate, wherein the liquid crystal molecule of this liquid crystal layer is a horizontal direction matching, this on first retardation plate and this first time retardation plate be quarter-wave plate, pixel electrode, public electrode and the liquid crystal layer that is sandwiched in wherein constitute a plurality of pixel regions, this each pixel region has a reflector space and a penetration region, it is characterized in that: a compensating plate is arranged on first between the retardation plate and liquid crystal layer, and the phase delay of the liquid crystal layer of reflector space and compensating plate relation satisfies formula:
Ret
LCR(V
Off)-Ret
LCR(V
On)＝λ/4±m(λ/2)，m＝0，1，2，...
Ret
LCR(V
On)+Ret
F＝±m(λ/2)，m＝0，1，2，...
Wherein, Ret
LCR(V
Off) be the phase delay of the liquid crystal layer of reflector space when not applying voltage, Ret
LCR(V
On) be the phase delay of the liquid crystal layer of reflector space when applying voltage, Ret
FBe the phase delay of compensating plate, λ is value in visible wavelength range.
42. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 41 is characterized in that: this compensating plate is an A-plate compensating plate.
43. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 41 is characterized in that: the liquid crystal layer of penetration region and the phase delay of compensating plate relation satisfy formula:
Ret
LCT(V
Off)-Ret
LCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F＝±mλ，m＝0，1，2，...
Wherein, Ret
LCT(V
Off) be the phase delay of the liquid crystal layer of penetration region when not applying voltage, Ret
LCT(V
On) be the phase delay of the liquid crystal layer of penetration region when applying voltage, Ret
FBe the phase delay of compensating plate.
44. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 42 is characterized in that: it is vertical mutually with the polarization axle of following Polarizer to go up Polarizer.
45. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 44 is characterized in that: the optical axis of retardation plate and first time retardation plate is orthogonal on first, and with upper polarizer and down polaroid polarization axle in angle of 45 degrees.
46. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 41 is characterized in that: this compensating plate is the disklike molecule film.
47. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 46, it is characterized in that: comprise that further one is separately positioned on Polarizer and first between the retardation plate and retardation plate and second time retardation plate on second between Polarizer and the first time retardation plate down, wherein this on second retardation plate and second time retardation plate be 1/2nd wave plates.
48. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 47 is characterized in that: it is vertical mutually with the polarization axle of following Polarizer to go up Polarizer.
49. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 48 is characterized in that: the optical axis of second time retardation plate has an angle theta with the polarization axle of following Polarizer.
50. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 49 is characterized in that: the angle of the polarization axle of the optical axis of first time retardation plate and following Polarizer is 2 θ ± 45 °.
51. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 41 is characterized in that: the thickness of liquid crystal layer of penetration region is greater than the thickness of liquid crystal layer of reflector space.
52. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 41 is characterized in that: pixel electrode further comprises a transparency electrode and a reflecting electrode.
53. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 52 is characterized in that: comprise that further one is arranged on the passivation layer between this transparency electrode and reflecting electrode.
54. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 53 is characterized in that: reflecting electrode and this passivation layer have one and penetrate opening.
55. semi-penetrating semi-reflecting type liquid crystal displaying device as claimed in claim 41 is characterized in that: further comprise one be respectively formed at first substrate and second substrate inboard and with the contacted alignment film of liquid crystal layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100274351A CN100437267C (en) | 2004-05-28 | 2004-05-28 | Semi penetration semi reflective liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100274351A CN100437267C (en) | 2004-05-28 | 2004-05-28 | Semi penetration semi reflective liquid crystal display device |
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| CN1716025A CN1716025A (en) | 2006-01-04 |
| CN100437267C true CN100437267C (en) | 2008-11-26 |
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|---|---|---|---|---|
| CN101393335B (en) * | 2007-09-21 | 2011-09-28 | 群康科技(深圳)有限公司 | Half- penetration and half-reflection LCD |
| CN101819480B (en) * | 2009-02-26 | 2012-04-18 | 佛山市顺德区汉达精密电子科技有限公司 | Display device |
| JP2019184827A (en) * | 2018-04-10 | 2019-10-24 | シャープ株式会社 | Liquid crystal display and method for manufacturing the same |
| JP2019184828A (en) * | 2018-04-10 | 2019-10-24 | シャープ株式会社 | Liquid crystal display device |
| CN111427200A (en) * | 2020-04-08 | 2020-07-17 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
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|---|---|---|---|---|
| US6295109B1 (en) * | 1997-12-26 | 2001-09-25 | Sharp Kabushiki Kaisha | LCD with plurality of pixels having reflective and transmissive regions |
| US20020041351A1 (en) * | 2000-05-08 | 2002-04-11 | Heum-Il Baek | Transflective liquid crystal display and method of fabricating the same |
| CN1448764A (en) * | 2002-04-02 | 2003-10-15 | 精工爱普生株式会社 | LCD, manufacturing method thereof, and electronic device |
| JP2004020832A (en) * | 2002-06-14 | 2004-01-22 | Seiko Epson Corp | Liquid crystal display and electronic apparatus using the same |
-
2004
- 2004-05-28 CN CNB2004100274351A patent/CN100437267C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6295109B1 (en) * | 1997-12-26 | 2001-09-25 | Sharp Kabushiki Kaisha | LCD with plurality of pixels having reflective and transmissive regions |
| US20020041351A1 (en) * | 2000-05-08 | 2002-04-11 | Heum-Il Baek | Transflective liquid crystal display and method of fabricating the same |
| CN1448764A (en) * | 2002-04-02 | 2003-10-15 | 精工爱普生株式会社 | LCD, manufacturing method thereof, and electronic device |
| JP2004020832A (en) * | 2002-06-14 | 2004-01-22 | Seiko Epson Corp | Liquid crystal display and electronic apparatus using the same |
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| CN1716025A (en) | 2006-01-04 |
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