CN105589252A - Light valve element and control method thereof and display device - Google Patents
Light valve element and control method thereof and display device Download PDFInfo
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- CN105589252A CN105589252A CN201610141375.9A CN201610141375A CN105589252A CN 105589252 A CN105589252 A CN 105589252A CN 201610141375 A CN201610141375 A CN 201610141375A CN 105589252 A CN105589252 A CN 105589252A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
- G02F1/133555—Transflectors
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1676—Electrodes
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- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The invention provides a light valve element and a control method thereof and a display device, and belongs to the technical field of display. The problems that an existing light valve element is complex in structure, difficult to prepare, large in power consumption and high in cost can be solved. The light valve element comprises a first substrate and a second substrate which are oppositely arranged in parallel, the space between the first substrate and the second substrate are divided into multiple chambers, and first electrodes and second electrodes are arranged in each chamber, are insulated from each other and are perpendicular to each other; each chamber is filled with an electrophoretic buffer solution containing charged reflection particles, and the reflection particles can be adsorbed to the surfaces of the first electrodes or the surfaces of the second electrodes. The light valve element is simple in working principle, easy to prepare, little in power consumption, low in cost and convenient and efficient to control.
Description
Technical field
The invention belongs to Display Technique field, be specifically related to a kind of light valve component and control thereofMethod, display unit.
Background technology
Existing liquid crystal indicator, according to the light source difference adopting, is divided into transmission-type, anti-Penetrate formula and Transflective. Wherein, transmission liquid crystal display device is using backlight as lightSource can show bright image under dark environment; Reflective LCD deviceUsing front located light source or environment light source as light source, on its array base palte, adopt metal orOther material layer with good reflection characteristic is as echo area, thus by front located light source orThe light reflection of person's environment light source is to show image, and power consumption is relatively low; TransflectiveLiquid crystal indicator can be considered as transmission liquid crystal display device and reflection type liquid crystal showsThe combination of device is provided with echo area on array base palte, is also provided with transmission area, canTo utilize backlight and external light source to show simultaneously. In addition, along with MEMS skillThe development of art, shows that in product, having started to apply mems switch device replaces liquid crystal at presentLayer, controls seeing through of light, can put forward efficiency, reduces power consumption and cost.
Inventor finds that in prior art, at least there are the following problems:
The permeable light of transmission liquid crystal display device only accounts for backlight emission of light veryLittle ratio, power consumption is very high; Reflective LCD device must rely on external light source,Thereby cannot under dark environment, show image, use scene very restricted; Semi-transparent halfAlthough reflecting LCD uses scene extensive, display effect is poor, brightUnder bright ring border, only have echo area work, transmission area will leave unused; Under dark surrounds, onlyHave transmission area work, echo area is idle. Thereby, cause Transflective liquid crystal display dressPut and all can not farthest utilize external light source or backlight; As for mems switchDevice, its technical difficulty is larger, complicated process of preparation, cost is relatively very high.
Therefore, design a kind of principle simple, prepare easy, lower-cost, and canConvenient, to control the reflection of light and the light valve component of transmission be efficiently urgently to be resolved hurrily at presentTechnical problem.
Summary of the invention
The present invention is directed to existing above-mentioned technical problem, a kind of light valve component and control thereof are providedSystem, preparation method, display unit. This light valve component utilizes principle of electrophoresis, by controllingThe position of charged reflective particle, controls seeing through and reflection of light, and principle is simple,Easily, cost is lower, and controls convenient, efficient in preparation.
Solve technical scheme that the technology of the present invention problem adopts and be to provide a kind of light valve unitPart, comprises first substrate and the second substrate of parallel opposed, described first substrate with described inBetween second substrate, be divided into multiple chambers, described in each, in chamber, be provided with the first electricityThe utmost point and the second electrode, described the first electrode and the vertical setting insulated from each other of described the second electrode;Described in each, in chamber, be all filled with electrophoretic buffer, in described electrophoretic buffer, comprise bandThe reflective particle of electric charge, described reflective particle can be adsorbed in described the first electrode surface orThe surface of described the second electrode.
Preferably, described the first electrode forms the sidewall of described chamber and perpendicular to instituteState first substrate; Described first substrate and described second substrate are positioned at the roof of described chamberAnd diapire; Described the second electrode is arranged at roof or the diapire of described chamber and is parallel toDescribed first substrate.
Preferably, also comprise insulating barrier, described insulating barrier is arranged at the side of described chamberWall and diapire, described the first electrode or the second electrode be arranged at described insulating barrier inside,Or be arranged at the surface of described insulating barrier towards described chamber interior.
Preferably, described the first electrode adopts transparent conductive material or opaque conduction materialMaterial is made; Described the second electrode adopts transparent conductive material to make.
Preferably, described reflective particle be shaped as spherical.
Preferably, the color of described reflective particle is silver color.
Preferably, also comprise voltage control circuit, described voltage control circuit with described inThe first electrode and described the second electrode electrical connection, for control described the first electrode and described inThe polarity of voltage of the second electrode, to adsorb the described reflection grain with the electric charge of opposite polaritySon.
Another kind of technical scheme provided by the invention: a kind of display unit, comprises relatively and establishingColor film unit and the array element put, establish between described color film unit and described array elementBe equipped with liquid crystal layer, also comprise above-mentioned light valve component.
Preferably, described color film unit comprises black matrix and is arranged at described black matrixColored color blocking in grid, the orthographic projection of described black matrix on described light valve component is completeCover the region corresponding to sidewall of chamber described in described light valve component.
Preferably, described color film unit and described array element are positioned at described light valve componentThe same side, and the more close described light valve of the relatively described color film unit of described array element unitPart.
Preferably, also comprise polaroid and lower polaroid, described upper polaroid settingIn the outside of described color film unit, described lower polaroid is arranged at described array element and instituteState between first substrate or be arranged at array element and described second substrate between; OrPerson, described array element is directly arranged at the outer surface of described first substrate or second substrate,Described upper polaroid is arranged at the outside of described color film unit, and described lower polaroid is arranged atDescribed first substrate or second substrate are away from a side of described array element.
Preferably, also comprise backlight, described backlight is positioned at described light valve component notOne side of described color film unit and described array element is set.
Another kind of technical scheme provided by the invention: a kind of controlling party of above-mentioned light valve componentMethod, comprising: control described the first electrode and have and the electric charge same pole of described reflective particleThe voltage of property, controls described the second electrode and has and the opposite charge utmost point of described reflective particleThe voltage of property, realizes the reflection of light;
Controlling described the first electrode has and the electricity of the opposite charge polarity of described reflective particlePress, control described the second electrode and have and the electricity of the electric charge identical polar of described reflective particlePress, realize the transmission of light.
Light valve component provided by the invention and comprise the display unit of this light valve component, profitBy principle of electrophoresis, by controlling the first electrode and the charged polarity of the second electrode, fromAnd control the position of charged reflective particle, realize the seeing through and reflection of light, itsOperation principle is simple, and easily, power consumption is less in preparation, and cost is lower, and control convenient,Efficiently.
The control method of light valve component provided by the invention, is the control of above-mentioned light valve componentMethod processed, can control reflection and the transmission of light valve component to light convenient, efficiently,Realization utilizes reflection ray to show image or utilizes transmitted ray to show image.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the light valve component of the embodiment of the present invention 1;
Fig. 2 is the another kind of structural representation of the light valve component of the embodiment of the present invention 1;
Fig. 3 is that the light valve component of Fig. 1 is in the structural representation of transmission mode;
Fig. 4 is that the light valve component of Fig. 1 is in the structural representation of reflective-mode;
Fig. 5 is the structural representation of spherical reflective particle reflection ray;
Fig. 6 is the structural representation of the light valve component of the embodiment of the present invention 2;
Fig. 7 is the structural representation of the display unit of the embodiment of the present invention 4;
Fig. 8 is the structural representation of the display unit of the embodiment of the present invention 5.
Wherein, Reference numeral is:
100, color film unit; 200, array element;
1, first substrate; 2, second substrate; 3, the first electrode; 4, the second electrode; 5,Electrophoretic buffer; 6, reflective particle; 7, insulating barrier; 8, liquid crystal layer; 9, black matrix;10, colored color blocking; 11, upper polaroid; 12, lower polaroid; 13, backlight.
Detailed description of the invention
For making those skilled in the art understand better technical scheme of the present invention, knot belowClosing the drawings and specific embodiments is described in further detail the present invention.
Embodiment 1:
The present embodiment provides a kind of light valve component, and this light valve component utilizes principle of electrophoresis, logicalCross and control the first electrode and the charged polarity of the second electrode, thereby control chargedThe position of reflective particle, realizes seeing through and reflection light.
The light valve component of the present embodiment, comprises first substrate and the second substrate of parallel opposed,Between first substrate and second substrate, be divided into multiple chambers, in each chamber, be provided withThe first electrode and the second electrode, the first electrode and the vertical setting insulated from each other of the second electrode;In each chamber, be all filled with electrophoretic buffer, in electrophoretic buffer, comprise charged anti-Radion, reflective particle can be adsorbed in the surface of the first electrode or the surface of the second electrode.
Fig. 1 is the structural representation of the light valve component of the present embodiment, as shown in Figure 1, and lightFirst substrate 1 and second substrate 2 parallel opposed of valve element, first substrate 1 and secondBetween substrate 2, be divided into multiple chambers, the first electrode 3 and the second electricity in each chamberThe utmost point 4 vertical setting insulated from each other, the first electrode 3 form the sidewall of chamber and perpendicular toFirst substrate 1; First substrate 1 and second substrate 2 form respectively roof and the diapire of chamber;In each chamber, be all filled with transparent electrophoretic buffer 5, charged reflective particle 6Be placed in electrophoretic buffer 5. When reflective particle 6 is laid in the diapire of chamber, can be completeCover the diapire of chamber.
Wherein, the first electrode 3 forms in the sidewall of chamber and perpendicular to first substrate 1;The second electrode 4 is arranged at the diapire of chamber, i.e. a side of close second substrate 2 and flatRow is in first substrate 1. Insulating barrier 7 is arranged at sidewall and the diapire of chamber, the first electrode 3Be arranged at the inside of insulating barrier 7 with the second electrode 4, concrete, insulating barrier 7 is divided intoHalf part and the latter half, the latter half of insulating barrier 7 is coated on the second electrode 4 and theTwo substrate 2 upper surfaces, the first half of insulating barrier 7 is coated on the first electrode 3 surfaces,Make insulating barrier 7 play the effect of isolated the first electrode 3 and the second electrode 4. In like manner, alsoThe second electrode 4 can be arranged to the surface of insulating barrier 7 towards chamber interior, as Fig. 2 instituteShow.
Light valve component also comprises voltage control circuit, voltage control circuit and the first electrode 3Be electrically connected with the second electrode 4, for controlling the voltage of the first electrode 3 and the second electrode 4Polarity, to adsorb the reflective particle 6 with the electric charge of opposite polarity.
Fig. 3 be the light valve component of the present embodiment in the structural representation of transmission mode, asShown in Fig. 3, positively charged as example taking reflective particle 6, voltage control circuit control firstElectrode 3 is electronegative, controls the second electrode 4 positively charged. According to principle of electrophoresis, instituteMeaning principle of electrophoresis refer to charged particle or molecule in electric field near with the charges of different polarityOne side moves or away from the phenomenon moving with a side of same sex electric charge. In Fig. 3, the first electricityBetween the utmost point 3 and the second electrode 4, form electric field, positively charged reflective particle 6 will be to bandThe first electrode 3 of negative electrical charge moves, simultaneously away from the second positively charged electrode 4, untilAll reflective particles 6 are gathered in the surface of the first electrode 3. Like this, light is (in Fig. 3Shown in arrow) get final product transmissive light valve element, realize transmission and show.
In like manner, reflective particle 6 also can be electronegative, corresponding, by Control of Voltage electricityIt is positively charged that the first electrode 3 is controlled on road, controls the second electrode 4 electronegative, equally canRealizing transmission shows.
Fig. 4 be the light valve component of the present embodiment in the structural representation of reflective-mode, asShown in Fig. 4, positively charged as example taking reflective particle 6, voltage control circuit control firstElectrode 3 is positively charged, controls the second electrode 4 electronegative. According to principle of electrophoresis, bandThe reflective particle 6 of positive charge will move to the second electronegative electrode 4, simultaneously away fromThe first positively charged electrode 3, until all reflective particles 6 are gathered in the second electrode 4Surface, reflective particle 6 is laid in the diapire of chamber, has covered the end of chamber completelyWall. Like this, light (in Fig. 4 shown in arrow) can be reflected by light valve component, realizesReflective display. In like manner, reflective particle 6 also can be electronegative, repeats no more here.
From above-mentioned operation principle, the first electrode 3 can allow light to see through, and also canNot allow light to see through, so, the first electrode 3 can adopt transparent conductive material orOpaque conductive material is made; Corresponding, the second electrode 4 need to adopt transparent conductive materialMake, to realize the transmission of light.
The shape of reflective particle 6 is preferably spherical. Fig. 5 is that spherical reflective particle 6 is anti-Penetrate the structural representation of light, as shown in Figure 5, reflective particle 6 is laid in the end of chamberWhen wall, will form rough reflecting surface, light is irradiated to this reflecting surface and will occurs unrestrainedReflection, than smooth reflecting surface, reflection ray will be distributed in wider space fieldIn, thereby realize the demonstration of wide viewing angle, improve display effect.
In order to improve the effect of reflection ray of reflective particle 6, preferably reflective particle 6Color is silver color, and silver color has the ability of stronger reflection ray, under reflective-mode,Can improve the brightness of demonstration.
The present embodiment also provides the preparation method of above-mentioned light valve component, comprises the following steps:
Step 1: form the second electrode 4 on second substrate 2.
Concrete, the second electrode 4 is parallel to second substrate 2 and interval arranges.
Step 2: on the second electrode 4, form the latter half of insulating barrier 7, wherein,The latter half of insulating barrier 7 covers the second electrode 4.
Concrete, the latter half of insulating barrier 7 covers whole second substrate 2 and coversThe second electrode 4.
Step 3: form the first electrode 3 and insulating barrier 7 in the latter half of insulating barrier 7The first half, wherein, the first half of insulating barrier 7 cover the first electrode 3 and insulationThe latter half of layer 7. The latter half of insulating barrier 7 is in fact for being parallel to second substratePlanar section.
Concrete, first, in the latter half of insulating barrier 7, form the first electrode 3,The first electrode 3 perpendicular to second substrate 2 and the corresponding gap that is arranged on the second electrode 4 itBetween; Secondly, above whole second substrate 2, cover the first half of insulating barrier 7, makeThe first half of insulating barrier 7 covers the latter half of the first electrode 3 and insulating barrier 7 simultaneously,Thereby the first electrode 3 and the second electrode 4 insulation are arranged. The first half of insulating barrier 7In fact be the vertical portion perpendicular to second substrate, formed the gear between each chamberWall.
Step 4: fill out in the space surrounding in the first half and the latter half of insulating barrier 7Fill electrophoretic buffer 5 and reflective particle 6.
Step 5: cover first substrate 1 above the first electrode 3, by electrophoretic buffer5 and reflective particle 6 be closed in chamber.
Visible, the light valve component of the present embodiment, preparation process is simple, adopts existing techniqueCan complete.
The light valve component of the present embodiment, utilizes principle of electrophoresis, by control the first electrode andThe charged polarity of the second electrode, thus the position of charged reflective particle controlled,Can make light valve component switch on neatly between transmission mode and reflective-mode, and in reflectionUnder pattern, can realize wide viewing angle and show, its operation principle is simple, and easily, power consumption in preparationLittle, cost is lower, and controls convenient, efficiently, has good utilization prospect.
Embodiment 2:
The present embodiment provides a kind of light valve component, and it has the light valve component with embodiment 1Similarly structure, the difference of itself and embodiment 1 is, in the light valve component of the present embodiment,The roof that the second electrode is arranged at chamber is near a side of first substrate and be parallel to theOne substrate.
Fig. 6 is the structural representation of the light valve component of the present embodiment, as shown in Figure 6, theThe roof that two electrodes 4 are arranged at chamber is a side of close first substrate 1 and is parallel toFirst substrate 1, insulating barrier 7 is arranged at sidewall and the diapire of chamber, and the first electrode 3 arrangesIn the inside of insulating barrier 7, make insulating barrier 7 play isolated the first electrode 3 and the second electrode 4Effect.
Other structures of the light valve component of the present embodiment and the light valve component of embodiment 1 rightAnswer structure identical, repeat no more here.
The light valve component of the present embodiment can switch on transmission mode and reflection equally neatlyBetween pattern, realization sees through and reflection light, and operation principle is simple, and preparation is easy,Power consumption is less, and cost is lower, and controls convenient, efficient.
Embodiment 3:
The present embodiment provides a kind of control method of light valve component, and this control method is to implementThe control method of light valve component in example 1 or embodiment 2, comprises the following steps:
Control the first electrode and have and the voltage of the electric charge identical polar of reflective particle, controlThe second electrode has the voltage with the opposite charge polarity of reflective particle, realizes the anti-of lightPenetrate;
Control the first electrode and have and the voltage of the opposite charge polarity of reflective particle, controlThe second electrode has the voltage with the electric charge identical polar of reflective particle, realize light thoroughlyPenetrate.
Above-mentioned reflective particle with electric charge can be positive charge, also can be negative electrical charge. ThisThe control method of the light valve component of embodiment, can make the light in embodiment 1 or embodiment 2Valve element switches between transmission mode and reflective-mode neatly, and realization is saturating to lightCross and reflect, controlling convenient, efficiently, and power consumption is lower.
Embodiment 4:
The present embodiment provides a kind of display unit, comprise the color film unit that is oppositely arranged andArray element, is provided with liquid crystal layer between color film unit and array element, also comprises enforcementLight valve component in example 1 or embodiment 2. This display unit can be according to the situation of environment,Switch on neatly between transmission mode and reflective-mode, can significantly reduce and show dressThe power consumption of putting.
Fig. 7 is the structural representation of the display unit of the present embodiment, as shown in Figure 7, and coloured silkFilm unit 100 and array element 200 are positioned at the same side of light valve component, and array elementThe more close light valve component of 200 relatively color film unit 100. Color film unit 100 and array elementBetween 200, be provided with liquid crystal layer 8. Wherein, color film unit 100 comprise black matrix 9 andBe arranged at the colored color blocking 10 in black matrix 9 grids, black matrix 9 is on light valve componentOrthographic projection covers the region corresponding to sidewall of light valve component middle chamber completely, that is to say,Sidewall, first electrode 3 of chamber block by black matrix 9. In display unit in thoroughlyWhen emission mode, reflective particle 6 is gathered in the surface of the first electrode 3, and reflective particle 6 alsoBlocked by black matrix 9.
This display unit also comprises polaroid 11 and lower polaroid 12, upper polaroid 11Be arranged at the outside of color film unit 100, color film unit 100 is away from array element 200A side, lower polaroid 12 is arranged between array element 200 and first substrate 1. ItsIn, in array element 200, be provided with thin-film transistor circuit, for controlling liquid crystal layer 8The deflection of middle liquid crystal, thereby the demonstration of control interface.
Hold intelligible, lower polaroid 12 not only can be arranged at array element 200 withBetween first substrate 1, also can be arranged between array element 200 and second substrate 2,After namely light valve component being turned upside down, be arranged on a side of array element 200, like this,Can play equally the effect of controlling light reflection and transmission.
This display unit also comprises backlight 13, and backlight 13 is positioned at light valve component and does not establishPut a side of color film unit 100 and array element 200. When the residing ring of this display unitIn border, when light is lower, controls display unit in transmission mode, and open backlightSource 13, makes display unit can show bright picture; When the residing ring of this display unitIn border, when light is higher, controls display unit in reflective-mode, and close backlightSource 13, makes display unit can show equally bright picture, and reduces power consumption.
In the display unit of the present embodiment, upper polaroid 11, color film unit 100, liquid crystalLayer 8, array element 200 and lower polaroid 12 entirety have formed a LCDPlate, this display panels and backlight 13 are separately positioned on the both sides of light valve component, fromAnd form the display unit of the present embodiment. This display unit can be according to the situation of environment,Switch on neatly between transmission mode and reflective-mode, can significantly reduce and show dressThe power consumption of putting, and simple in structure, control convenient, efficient.
Embodiment 5:
The present embodiment provides a kind of display unit, and it has the demonstration dress with embodiment 4Put similar structure, the difference of itself and embodiment 4 is, the display unit of the present embodimentIn, array element is directly arranged at the outer surface of first substrate, and lower polaroid is arranged atOne substrate is away from a side of array element.
Fig. 8 is the structural representation of the display unit of the present embodiment, as shown in Figure 8, and coloured silkFilm unit 100 and array element 200 are positioned at the same side of light valve component, and array element200 are directly arranged at the outer surface of first substrate 1, and lower polaroid 12 is arranged at the first basePlate 1 is away from a side of array element 200. In array element 200, be provided with film crystalPipe circuit. Like this, the structure in array element 200 can be formed on to first substrate 1Surface, can reduce the thickness of array element 200, thereby reduce the thickness of display unit.
Hold intelligiblely, the structure of display unit can be also, color film unit 100 HesArray element 200 is positioned at the same side of light valve component, and array element 200 directly arrangesIn the outer surface of second substrate 2, upper polaroid 11 is arranged at the outside of color film unit 100,Lower polaroid 12 is arranged at the side of second substrate 2 away from array element 200.
Other structures of the display unit of the present embodiment and the display unit of embodiment 4 rightAnswer structure identical, repeat no more here.
In the display unit of the present embodiment, upper polaroid 11, color film unit 100, liquid crystalLayer 8, array element 200, first substrate 1 and lower polaroid 12 entirety have formed oneIndividual display panels, this display panels and light valve component and backlight 13 formThe display unit of the present embodiment, this display unit not only can switch on transmission neatlyBetween pattern and reflective-mode, also reduce the thickness of display unit, made display unit moreAdd frivolous.
Be understandable that, above embodiment is only used to illustrate principle of the present inventionAnd the illustrative embodiments adopting, but the present invention is not limited thereto. For abilityThose of ordinary skill in territory, in the situation that does not depart from spirit of the present invention and essenceUnder, can make various modification and improvement, these modification and improvement are also considered as of the present inventionProtection domain.
Claims (13)
1. a light valve component, comprises first substrate and the second substrate of parallel opposed, itsBe characterised in that, between described first substrate and described second substrate, be divided into multiple chambers,Described in each, in chamber, be provided with the first electrode and the second electrode, described the first electrode withThe vertical setting insulated from each other of described the second electrode; Described in each, in chamber, be all filled with electrophoresisBuffer solution, comprises charged reflective particle in described electrophoretic buffer, described reflection grainSon can be adsorbed in the surface of described the first electrode or the surface of described the second electrode.
2. light valve component according to claim 1, is characterized in that, described firstElectrode forms the sidewall of described chamber and perpendicular to described first substrate; Described the first basePlate and described second substrate are positioned at roof and the diapire of described chamber; Described the second electrode is establishedBe placed in roof or the diapire of described chamber and be parallel to described first substrate.
3. light valve component according to claim 2, is characterized in that, also comprises absolutelyEdge layer, described insulating barrier is arranged at sidewall and the diapire of described chamber, described the first electrodeOr second electrode be arranged at the inside of described insulating barrier or be arranged at described insulating barrier courtTo the surface of described chamber interior.
4. light valve component according to claim 1, is characterized in that, described firstElectrode adopts transparent conductive material or opaque conductive material to make; Described the second electrode is adoptedMake with transparent conductive material.
5. light valve component according to claim 1, is characterized in that, described reflectionBeing shaped as of particle is spherical.
6. light valve component according to claim 1, is characterized in that, described reflectionThe color of particle is silver color.
7. according to the arbitrary described light valve component of claim 1～6, it is characterized in that, alsoComprise voltage control circuit, described voltage control circuit and described the first electrode and describedTwo electrode electrical connections, for controlling the voltage pole of described the first electrode and described the second electrodeProperty, to adsorb the described reflective particle with the electric charge of opposite polarity.
8. a display unit, comprises the color film unit and the array element that are oppositely arranged, instituteState between color film unit and described array element and be provided with liquid crystal layer, it is characterized in that, alsoComprise the arbitrary described light valve component of claim 1～7.
9. display unit according to claim 8, is characterized in that, described color filmUnit comprises black matrix and is arranged at the colored color blocking in described black matrix grid, described inThe orthographic projection of black matrix on described light valve component covers described in described light valve component completelyThe region corresponding to sidewall of chamber.
10. display unit according to claim 8, is characterized in that, described coloured silkFilm unit and described array element are positioned at the same side of described light valve component, and described arrayThe more close described light valve component of the relatively described color film unit in unit.
11. display unit according to claim 10, is characterized in that, also compriseUpper polaroid and lower polaroid;
Described upper polaroid is arranged at the outside of described color film unit, and described lower polaroid is establishedBe placed between described array element and described first substrate or be arranged at array element withBetween described second substrate;
Or described array element is directly arranged at described first substrate or second substrateOuter surface, described upper polaroid is arranged at the outside of described color film unit, described lower polarisationSheet is arranged at described first substrate or the second substrate side away from described array element.
12. according to Claim 8～11 arbitrary described display unit, is characterized in that,Also comprise backlight, described backlight is positioned at described light valve component described color film list is not setOne side of first and described array element.
The control method of 13. 1 kinds of arbitrary described light valve components of claim 1～7, itsBe characterised in that, comprise: control described the first electrode and have and the electric charge of described reflective particleThe voltage of identical polar, controls described the second electrode and has and the electric charge of described reflective particleThe voltage of opposite polarity, realizes the reflection of light;
Controlling described the first electrode has and the electricity of the opposite charge polarity of described reflective particlePress, control described the second electrode and have and the electricity of the electric charge identical polar of described reflective particlePress, realize the transmission of light.
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Application publication date: 20160518 |