CN1740854A - Semi-penetrating semi-reflecting type liquid crystal displaying device - Google Patents
Semi-penetrating semi-reflecting type liquid crystal displaying device Download PDFInfo
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- CN1740854A CN1740854A CN 200410051256 CN200410051256A CN1740854A CN 1740854 A CN1740854 A CN 1740854A CN 200410051256 CN200410051256 CN 200410051256 CN 200410051256 A CN200410051256 A CN 200410051256A CN 1740854 A CN1740854 A CN 1740854A
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Abstract
A kind of semi-penetrating semi-reflecting type liquid crystal displaying device, it comprises: a upper substrate, one infrabasal plate, one liquid crystal layer between this upper substrate and this infrabasal plate, one is arranged on the last Polarizer in the upper substrate outside, one is arranged on the last alignment film between this liquid crystal layer and this upper substrate, one public electrode is arranged on upper substrate, one is arranged on the following alignment film between this liquid crystal layer and this infrabasal plate, pixel electrode is arranged on infrabasal plate, this pixel electrode, public electrode and the liquid crystal layer that is positioned in the middle of it constitute pixel region, this each pixel region tool one echo area electrode and a penetrating region electrode, one is arranged on the following Polarizer in this infrabasal plate outside, wherein the orientation frictional direction angle of the upper and lower base plate of this liquid crystal layer is that 0 degree is to 90 degree, this upper substrate outside and the infrabasal plate outside are respectively arranged with retardation plate and first time retardation plate on one first, this on first retardation plate and first time retardation plate be the quarter-wave lengthy motion picture.This liquid crystal indicator has high-contrast, the characteristic that the visual angle is good.
Description
[technical field]
The invention relates to a kind of liquid crystal indicator, especially about a kind of semi-penetrating semi-reflecting type liquid crystal displaying device.
[background technology]
Liquid crystal indicator is because of characteristics such as have low diathermaneity, volume is compact and power consumption is low, thus 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 in the display panels back side and show to realize image, and still, the power consumption of backlight accounts for half of whole penetration liquid crystal display device power consumption, 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.
See also Fig. 1, prior art semi-penetrating semi-reflecting type liquid crystal displaying device 1 comprises that two relative transparent lower substrate 11 and upper substrate 12, a liquid crystal layer 13 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 inboard of this upper substrate 12, on one on the retardation plate 122 and a Polarizer 121 be successively set on the outside 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 inboard of this infrabasal plate 11, and wherein this passivation layer 16 and reflecting electrode 15 tools one open 151.Once retardation plate 112 and once Polarizer 111 be successively set on the outside of this infrabasal plate 11.
Should go up retardation plate 122 is quarter-wave lengthy motion picture (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 the metallic aluminium (Al) of high reflectance, transparent common electrode 14 and transparency electrode 17 be transparent conductive material such as tin indium oxide (Indium Tin Oxide, ITO) or indium zinc oxide (IndiumZinc Oxide, IZO).Liquid crystal layer 13 has different thickness, and wherein the thickness of transparent common electrode 14 and 15 liquid crystal layers 13 of reflecting electrode is d
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
12Be approximately 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, the wavelength of λ light.
See also Fig. 2, be the bright attitude of semi-penetrating semi-reflecting type liquid crystal displaying device and the Liquid Crystal Molecules Alignment synoptic diagram under the dark attitude.The liquid crystal molecule along continuous straight runs is not arranged when 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, when applying voltage, 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, and light through this liquid crystal layer 13 can the time owing in the echo area and the light path difference of penetrating region, have optical path difference, so the generation optical delay makes this semi-penetrating semi-reflecting type liquid crystal displaying device 1 have light leakage phenomena when dark attitude.See also Fig. 3, be the voltage of prior art semi-penetrating semi-reflecting type liquid crystal displaying device 1 and the curve map of penetrance, when voltage raise gradually (when reaching 5V), the penetrance of this semi-penetrating semi-reflecting type liquid crystal displaying device 1 is not 0, that is to say and to realize this moment complete deceiving, still there is part light to pass through, can't realizes the demonstration of dark attitude, thereby influence its contrast and viewing angle characteristic.
[summary of the invention]
In order to overcome the low problem that reaches the viewing angle characteristic difference of liquid crystal indicator contrast in the prior art, the invention provides the semi-penetrating semi-reflecting type liquid crystal displaying device of a kind of tool high-contrast and good 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, it comprises: a upper substrate, one infrabasal plate, one liquid crystal layer between this upper substrate and this infrabasal plate, one is arranged on the last Polarizer in the upper substrate outside, one is arranged on the last alignment film between this liquid crystal layer and this upper substrate, one public electrode is arranged on upper substrate, one is arranged on the following alignment film between this liquid crystal layer and this infrabasal plate, pixel electrode is arranged on infrabasal plate, this pixel electrode wherein, public electrode and the liquid crystal layer that is positioned in the middle of it constitute pixel region, this each pixel region tool one echo area electrode and a penetrating region electrode, one is arranged on the following Polarizer in this infrabasal plate outside, wherein the orientation frictional direction angle of the upper and lower base plate of this liquid crystal layer is that 0 degree is to 90 degree, this upper substrate outside and the infrabasal plate outside are respectively arranged with retardation plate and first time retardation plate on one first, this on first retardation plate and first time retardation plate be the quarter-wave lengthy motion picture.
Another technical scheme that technical solution problem of the present invention is adopted: a kind of semi-penetrating semi-reflecting type liquid crystal displaying device is provided, it comprises: a upper substrate, one infrabasal plate, one liquid crystal layer between this upper substrate and this infrabasal plate, one is arranged on the last Polarizer in the upper substrate outside, one is arranged on the last alignment film between this liquid crystal layer and this upper substrate, one public electrode is arranged on upper substrate, one is arranged on the following alignment film between this liquid crystal layer and this infrabasal plate, pixel electrode is arranged on infrabasal plate, this pixel electrode wherein, public electrode and the liquid crystal layer that is positioned in the middle of it constitute pixel region, this each pixel region tool one echo area electrode and a penetrating region electrode, one is arranged on the following Polarizer in this infrabasal plate outside, wherein the orientation frictional direction angle of the upper and lower base plate of this liquid crystal layer is that 0 degree is to 90 degree, this upper substrate arranged outside has on first retardation plate on the retardation plate and second, and this infrabasal plate arranged outside has first time retardation plate and second time retardation plate.
Compared to existing technology, the invention has the beneficial effects as follows: semi-penetrating semi-reflecting type liquid crystal displaying device of the present invention have retardation plate on first and first time retardation plate can be when applying voltage owing to liquid crystal molecule and not exclusively arrange the residue optical phase put-off that causes and compensate perpendicular to substrate, thereby the light leakage phenomena when reducing dark attitude, improve the contrast of this semi-penetrating semi-reflecting type liquid crystal displaying device, and cooperate different disklike molecule films and compensate film further to improve the visual angle, and the penetration region of this semi-penetrating semi-reflecting type liquid crystal displaying device has identical liquid crystal gap thickness with reflector space, simplify processing procedure, make penetration region have the consistent reaction time, have response soon with the liquid crystal of reflector space, characteristics such as driving voltage is low.
[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 running synoptic diagram of the reflector space of this semi-penetrating semi-reflecting type liquid crystal displaying device first embodiment.
Fig. 6 is the running synoptic diagram of the penetration region of this semi-penetrating semi-reflecting type liquid crystal displaying device first embodiment.
Fig. 7 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device second embodiment of the present invention.
Fig. 8 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 3rd embodiment of the present invention.
Fig. 9 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 4th embodiment of the present invention.
Figure 10 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 5th embodiment of the present invention.
Figure 11 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 6th embodiment of the present invention.
Figure 12 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 7th embodiment of the present invention.
Figure 13 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 8th embodiment of the present invention.
Figure 14 is the diagrammatic cross-section of semi-penetrating semi-reflecting type liquid crystal displaying device the 9th 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 10 of the present invention comprise a upper substrate 22, one and the infrabasal plate 21, that is oppositely arranged of upper substrate 22 be positioned at the liquid crystal layer 23 of 22,21 of this two substrates, this liquid crystal layer 23 comprises a plurality of eurymeric liquid crystal molecules (indicating).
The liquid crystal molecule of this liquid crystal layer 23 is horizontal direction matching (HomogeneousAlignment), and its pre-dumping angle is 0 °～15 °, and liquid crystal molecule is roughly along continuous straight runs arrangement under the effect of alignment film 41,42 about this.
The outer surface of this upper substrate 22 sets gradually on one first on the retardation plate 521, one second Polarizer 32 on the retardation plate 522 and.The inner surface of this upper substrate 22 sets gradually alignment film 42 on a public electrode 221 and.This public electrode 221 is a transparent conductive material, as tin indium oxide (Indium Tin Oxide, ITO) or indium zinc oxide (Indium Zinc Oxide, IZO).
The outer surface of this infrabasal plate 21 sets gradually one first time retardation plate 511, one second time retardation plate 512 and Polarizer 31 once.Through electrode 212 and reflecting electrode 211 are arranged on the inboard of this infrabasal plate 21, constitute pixel electrode together, when applying voltage, 221 of pixel electrode and this public electrodes produce one perpendicular to the deflection with the control liquid crystal molecule of the electric field of substrate 22,21, and display image shows.This through electrode 212 is a transparent conductive material, and as tin indium oxide (ITO), this reflecting electrode 211 is the metal material of tool high reflectance, as aluminium (Al).
This pixel electrode, public electrode 221 and the liquid crystal layer 23 that is positioned at wherein constitute a pixel region.Wherein, with reflecting electrode 211 pairing pixel regions be reflector space, with through electrode 212 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 211 realizes that image shows.Wherein, the thickness of liquid crystal layer of this reflector space is identical with the thickness of liquid crystal layer of this penetration region, make the liquid crystal of reflector space have the identical reaction time with the liquid crystal of this penetration region, and processing procedure is simple.
Wherein, this on first retardation plate 521 and first time retardation plate 511 be quarter-wave lengthy motion picture (λ/4), this on second retardation plate 522 and second time retardation plate 512 be half-wave plate (λ/2).
The wherein optical axis of this retardation plate 522 on second and polarization axle tool one angle theta 1 of last Polarizer 32, then the angle of the polarization axle of the optical axis of this retardation plate 521 on first and last Polarizer 32 is 2 θ
1± 45 °.Polarization axle tool one angle theta of the optical axis of this second time retardation plate and this time Polarizer
2, the optical axis of this first time retardation plate is 2 θ with the angle of the polarization axle of following Polarizer
2± 45 °.θ
1Between 8 °～22 ° or 68 °～82 °, θ
2Between 8 °～22 ° or 68 °～82 °.Work as θ
1=θ
2The time, the polarization axle of last Polarizer 32 is vertical with the polarization axle of following Polarizer 31, and the optical axis of retardation plate 521 is vertical with the optical axis of first time retardation plate 511 on first, and the optical axis of retardation plate 522 is vertical with the optical axis of second time retardation plate 512 on second.And the molecules align direction of this first disklike molecule film 624 and the second disklike molecule film 614 is parallel to the frictional direction of this horizontal direction matching substrate, and first compensate film 721 and second compensate film, 711 molecules align directions are perpendicular to the frictional direction of this horizontal direction matching substrate.
The phase delay relation of the liquid crystal layer 23 of reflector space and the first disklike molecule film 624 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
LC R(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
F624Be the phase delay of the first disklike molecule film 624.
The phase delay relation of liquid crystal layer 23, the first disklike molecule film 624 and the second disklike molecule film 614 of penetration region satisfies formula:
Ret
LCT(V
Off)-Re
tLCT(V
On)＝λ/2±mλ，m＝0，1，2，...
Ret
LCT(V
On)+Ret
F624+Ret
F614＝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
F624, Ret
F614Be respectively the phase delay of the first disklike molecule film 624 and the second disklike molecule film 614.
In the present embodiment, Ret
LCR(0V)-Ret
LCR(3.7V)=λ/4
Ret
LCR(3.7V)+Ret
F624＝0
Ret
LCT(0V)-Ret
LCT(3.7V)＝λ/2
Ret
LCT(3.7V)+Ret
F624+Ret
F614＝0
Seeing also Fig. 5, is the running synoptic diagram of these semi-penetrating semi-reflecting type liquid crystal displaying device 10 reflector spaces.When not applying voltage, external ambient light is transformed into the polarization direction linearly polarized light parallel with the polarization axle of last Polarizer 32 through behind the last Polarizer 32, wavelength is that the linearly polarized light of 550nm turns over 2 θ angles by retardation plate (half-wave plate) 522 rear polarizer directions on second, still is linearly polarized light.The optical axis of retardation plate 521 (quarter-wave lengthy motion picture) becomes 2 θ+45 ° angle with the polarization axle of last Polarizer 32 on the cause first, so change circularly polarized light into behind the retardation plate 521 on by first from the linearly polarized light of 522 outgoing of retardation plate 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 522 on the retardation plate 521 and second on first.The liquid crystal molecule along continuous straight runs of liquid crystal layer 23 is not arranged when applying voltage, the first disklike molecule film 624 is λ/4 with the optical delay summation of reflector space liquid crystal layer 23, circularly polarized light also passes through the liquid crystal layer 23 and the first disklike molecule film 624 by the first disklike molecule film 624 and liquid crystal layer 23 backs once more by reflecting electrode 211 reflections, twice optical effect by the liquid crystal layer 23 and the first disklike molecule film 624 of circularly polarized light is equivalent to 1/2nd wavelength plates, so circularly polarized light changes the opposite circularly polarized light of sense of rotation into after by the liquid crystal layer 23 and the first disklike molecule film 624.
The optical axis that this circularly polarized light is transformed into retardation plate 522 on the polarization direction and second after by retardation plate 521 on first becomes the linearly polarized light at θ angle, this linearly polarized light turns over 2 θ angles clockwise through retardation plate 522 rear polarizer directions on second, parallel with the polarization axis direction of last Polarizer 32 and can be by going up Polarizer 32, this moment, this semi-penetrating semi-reflecting type liquid crystal displaying device 10 shows bright attitude.
When applying voltage, the operation that external ambient light enters after by last Polarizer 32 before the liquid crystal layer 23 is consistent when 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 624 compensation of the first disklike molecule film, the phase delay that makes liquid crystal layer 23 and the first disklike molecule film, 624 summations is zero, circularly polarized light is not also changed through liquid crystal layer 23 and the first disklike molecule film, 624 rear polarizer states by reflecting electrode 211 reflections once more by liquid crystal layer 23 backs, this circularly polarized light changes linearly polarized light into after by retardation plate 521 on first, the optical axis of retardation plate 521 angle at 45 on the polarization direction of this linearly polarized light and first, with second on the optical axis of retardation plate 522 become 90 °+θ degree angle.This linearly polarized light by retardation plate 522 on second after, polarization direction Rotate 180 °+2 θ degree angles, vertical with the polarization axle of last Polarizer 32, so light can not pass through last Polarizer 32, the dark attitude of these semi-penetrating semi-reflecting type liquid crystal displaying device 10 demonstrations.
Seeing also Fig. 6, 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 and the optical delay summation last, the second disklike molecule film 624,614 of penetration region are λ/2, so twice of effect and light are identical with the first disklike molecule film 624 by reflector space liquid crystal layer 23.
Because second time retardation plate be to the linearly polarized light tool compensating action of incident, so most visible light changes circularly polarized light into during by first time retardation plate 511, effectively improves the utilization factor of light.Go up, the second disklike molecule film 624,614 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 10.This second disklike molecule film 614 and the first disklike molecule film 624 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 10.
In the embodiments of the present invention, on this first disklike molecule film 624, first compensate film 721, first on the retardation plate 521 and second retardation plate 522 positions commutative, same this second disklike molecule film 614, second compensate film 711, first time retardation plate 511 and second time retardation plate 521 position are also commutative.
Because the linearly polarized light tool compensating action of 512 pairs of incidents of second time retardation plate, so most visible light changes circularly polarized light into during by first time retardation plate 511, effectively improves the utilization factor of light.
First of present embodiment, retardation plate on two, first, two times retardation plates can be when applying voltage owing to liquid crystal molecule and not exclusively arrange the residue optical phase put-off that causes and compensate perpendicular to substrate, thereby the light leakage phenomena when reducing dark attitude, improve the contrast of this semi-penetrating semi-reflecting type liquid crystal displaying device, and cooperate different disklike molecule films and compensate film further to improve the visual angle, and, the penetration region of this semi-penetrating semi-reflecting type liquid crystal displaying device has identical liquid crystal gap thickness with reflector space, simplify processing procedure, make penetration region have the consistent reaction time, have response soon with the liquid crystal of reflector space, characteristics such as driving voltage is low.
See also Fig. 7, the structural representation of semi-penetrating semi-reflecting type liquid crystal displaying device second embodiment of the present invention.The difference of the present embodiment and first embodiment is: present embodiment further is provided with one first disklike molecule film 621, and this first disklike molecule film 621 is arranged on this on first between retardation plate 521 and this upper substrate 22.
See also Fig. 8, the structural representation of semi-penetrating semi-reflecting type liquid crystal displaying device the 3rd embodiment of the present invention.The difference of the present embodiment and first embodiment is: present embodiment further is provided with one second disklike molecule film 611, and this second disklike molecule film 611 is arranged between this first time retardation plate 511 and this infrabasal plate 21.
See also Fig. 9, the structural representation of semi-penetrating semi-reflecting type liquid crystal displaying device the 4th embodiment of the present invention.The difference of the present embodiment and first embodiment is: present embodiment further is respectively arranged with one first disklike molecule film 622 and one second disklike molecule film 612, this first disklike molecule film 621 is arranged on this on first between retardation plate 521 and this upper substrate 22, and this second disklike molecule film 611 is arranged between this first time retardation plate 511 and this infrabasal plate 21.
See also Figure 10, the structural representation of semi-penetrating semi-reflecting type liquid crystal displaying device the 5th embodiment of the present invention.The difference of the present embodiment and first embodiment is: present embodiment further is respectively arranged with one first compensate film 721, one second compensate film 711, wherein this first compensate film 721 is arranged on this on first between retardation plate 521 and this upper substrate 22, this second compensate film 711 is arranged between this first time retardation plate 511 and this infrabasal plate 21, and this first compensate film 721 and second compensate film 711 can be A-plate compensate film.
See also Figure 11, the structural representation of semi-penetrating semi-reflecting type liquid crystal displaying device the 6th embodiment of the present invention.The difference of present embodiment and the 5th embodiment is: present embodiment further is provided with one first disklike molecule film 623, and this first disklike molecule film 623 is arranged between this upper substrate 22 and first compensate film 721.
See also Figure 12, the structural representation of semi-penetrating semi-reflecting type liquid crystal displaying device the 7th embodiment of the present invention.The difference of present embodiment and the 5th embodiment is: present embodiment further is provided with one second disklike molecule film 613, and this second disklike molecule film 613 is arranged between this infrabasal plate 21 and second compensate film 711.
See also Figure 13, the structural representation of semi-penetrating semi-reflecting type liquid crystal displaying device the 8th embodiment of the present invention.The difference of present embodiment and the 5th embodiment is: present embodiment further comprises one first disklike molecule film 624 and one second disklike molecule film 614, this first disklike molecule film 624 is arranged between this upper substrate 22 and first compensate film 721, and this second disklike molecule film 614 is arranged between this infrabasal plate 21 and second compensate film 711.
See also Figure 14, the structural representation of semi-penetrating semi-reflecting type liquid crystal displaying device the 9th embodiment of the present invention.The present embodiment and the first enforcement side to the difference of the 8th embodiment is: the upper substrate outside of this semi-penetrating semi-reflecting type liquid crystal displaying device only is provided with retardation plate 512 on one first, this infrabasal plate outside only is provided with retardation plate 511 one first time, this on first retardation plate 512 be quarter-wave lengthy motion picture (λ/4), this first time retardation plate 511 is quarter-wave lengthy motion picture (λ/4).
Of the present invention first, retardation plate on two, first, two times retardation plates can be when applying voltage owing to liquid crystal molecule and not exclusively arrange the residue optical phase put-off that causes and compensate perpendicular to substrate, thereby the light leakage phenomena when reducing dark attitude, improve the contrast of this semi-penetrating semi-reflecting type liquid crystal displaying device, and cooperate different disklike molecule films and compensate film further to improve the visual angle, and, the penetration region of this semi-penetrating semi-reflecting type liquid crystal displaying device has identical liquid crystal gap thickness with reflector space, simplify processing procedure, make penetration region have the consistent reaction time with the liquid crystal of reflector space, liquid crystal layer adopts mixed orientation and adds optically active substance, has response soon, characteristics such as driving voltage is low.
Claims (23)
1. semi-penetrating semi-reflecting type liquid crystal displaying device, it comprises: a upper substrate, one infrabasal plate, one liquid crystal layer between this upper substrate and this infrabasal plate, one is arranged on the last Polarizer in the upper substrate outside, one is arranged on the last alignment film between this liquid crystal layer and this upper substrate, one public electrode is arranged on upper substrate, one is arranged on the following alignment film between this liquid crystal layer and this infrabasal plate, one pixel electrode is formed at infrabasal plate, this pixel electrode wherein, public electrode and the liquid crystal layer that is positioned in the middle of it constitute a pixel region, this each pixel region tool one echo area electrode and a penetrating region electrode, one is arranged on the following Polarizer in this infrabasal plate outside, it is characterized in that: the orientation frictional direction angle of the upper and lower base plate of this liquid crystal layer is that 0 degree is to 90 degree, this upper substrate outside and the infrabasal plate outside are respectively arranged with retardation plate and first time retardation plate on one first, this on first retardation plate and first time retardation plate be the quarter-wave lengthy motion picture.
2. according to claim 1 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: this liquid crystal layer is mixed with optically active substance.
3. according to claim 1 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: penetrating shaft of Polarizer is vertical with the penetrating shaft of this time Polarizer on this, this on first the optical axis of retardation plate vertical with the optical axis of this first time retardation plate.
4. according to claim 1 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: it comprises that further one is arranged on this first disklike molecule film between retardation plate and this upper substrate on first.
5. according to claim 7 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: penetrating shaft of Polarizer is vertical with the penetrating shaft of this time Polarizer on this, this on first the optical axis of retardation plate vertical with the optical axis of this first time retardation plate.
6. according to claim 1 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: it comprises that further one is arranged on the second disklike molecule film between this first time retardation plate and this infrabasal plate.
7. according to claim 1 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: it comprises that further one is arranged on this first compensate film between retardation plate and this upper substrate on first, and one is arranged on second compensate film between this first time retardation plate and this infrabasal plate.
8. according to claim 11 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: this first compensate film and this second compensate film A-plate compensate film.
9. according to claim 11 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: it comprises that further one is arranged on the first disklike molecule film between this first compensate film and this upper substrate.
10. according to claim 11 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: it comprises that further one is arranged on the second disklike molecule film between this second compensate film and this infrabasal plate.
11. semi-penetrating semi-reflecting type liquid crystal displaying device, it comprises: a upper substrate, one infrabasal plate, one liquid crystal layer between this upper substrate and this infrabasal plate, one is arranged on the last Polarizer in the upper substrate outside, one is arranged on the last alignment film between this liquid crystal layer and this upper substrate, one public electrode is arranged on upper substrate, one is arranged on the following alignment film between this liquid crystal layer and this infrabasal plate, one pixel electrode is formed at infrabasal plate, this pixel electrode wherein, public electrode and the liquid crystal layer that is positioned in the middle of it constitute a pixel region, this each pixel region tool one echo area electrode and a penetrating region electrode, one is arranged on the following Polarizer in this infrabasal plate outside, it is characterized in that: the orientation frictional direction angle of the upper and lower base plate of this liquid crystal layer is that 0 degree is to 90 degree, this upper substrate arranged outside has on first retardation plate on the retardation plate and second, and this infrabasal plate arranged outside has first time retardation plate and second time retardation plate.
12., it is characterized in that according to claim 11 a described semi-penetrating semi-reflecting type liquid crystal displaying device: this on first retardation plate be the quarter-wave lengthy motion picture, retardation plate is a half-wave plate on second.
13. according to claim 11 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: this first time retardation plate is the quarter-wave lengthy motion picture, and second time retardation plate is half-wave plate.
14., it is characterized in that: the optical axis of this retardation plate on second and polarization axle tool one angle theta of last Polarizer according to claim 11 a described semi-penetrating semi-reflecting type liquid crystal displaying device
1, the angle of the optical axis of this retardation plate on first and the polarization axle of last Polarizer is 2 θ
1± 45 °.
15., it is characterized in that: polarization axle tool one angle theta of the optical axis of this second time retardation plate and this time Polarizer according to claim 11 a described semi-penetrating semi-reflecting type liquid crystal displaying device
2, the optical axis of this first time retardation plate is 2 θ with the angle of the polarization axle of following Polarizer
2± 45 °.
16., it is characterized in that: θ according to claim 14 a described semi-penetrating semi-reflecting type liquid crystal displaying device
1Between 8 °～22 ° or 68 °～82 °.
17., it is characterized in that: θ according to claim 15 a described semi-penetrating semi-reflecting type liquid crystal displaying device
2Between 8 °～22 ° or 68 °～82 °.
18. according to claim 11 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: penetrating shaft of Polarizer is vertical with the penetrating shaft of this time Polarizer on this, this on first the optical axis of retardation plate vertical with the optical axis of this first time retardation plate, this on second the optical axis of retardation plate vertical with the optical axis of this second time retardation plate.
19. according to claim 11 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: it comprises that further one is arranged on this first disklike molecule film between retardation plate and this upper substrate on first.
20. according to claim 11 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: it comprises that further one is arranged on the second disklike molecule film between this first time retardation plate and this infrabasal plate.
21. according to claim 11 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: it comprises that further one is arranged on this first compensate film between retardation plate and this upper substrate on first, and one is arranged on second compensate film between this first time retardation plate and this infrabasal plate.
22. according to claim 21 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: it comprises that further one is arranged on the first disklike molecule film between this first compensate film and this upper substrate.
23. according to claim 21 a described semi-penetrating semi-reflecting type liquid crystal displaying device, it is characterized in that: it comprises that further one is arranged on the second disklike molecule film between this second compensate film and this infrabasal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410051256 CN1740854A (en) | 2004-08-25 | 2004-08-25 | Semi-penetrating semi-reflecting type liquid crystal displaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410051256 CN1740854A (en) | 2004-08-25 | 2004-08-25 | Semi-penetrating semi-reflecting type liquid crystal displaying device |
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| Publication Number | Publication Date |
|---|---|
| CN1740854A true CN1740854A (en) | 2006-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410051256 Pending CN1740854A (en) | 2004-08-25 | 2004-08-25 | Semi-penetrating semi-reflecting type liquid crystal displaying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707489A (en) * | 2011-06-09 | 2012-10-03 | 京东方科技集团股份有限公司 | Liquid crystal display panel |
-
2004
- 2004-08-25 CN CN 200410051256 patent/CN1740854A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707489A (en) * | 2011-06-09 | 2012-10-03 | 京东方科技集团股份有限公司 | Liquid crystal display panel |
| CN102707489B (en) * | 2011-06-09 | 2015-01-28 | 京东方科技集团股份有限公司 | Liquid crystal display panel |
| US8970462B2 (en) | 2011-06-09 | 2015-03-03 | Boe Technology Group Co., Ltd. | Liquid crystal display panel and liquid crystal display |
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