CN104049395A - Writing or erasing method for flexible reflection type cholesteric liquid crystal displayer - Google Patents
Writing or erasing method for flexible reflection type cholesteric liquid crystal displayer Download PDFInfo
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Abstract
The invention belongs to the technical field of flexible displayers and particularly relates to a writing or erasing method for a flexible reflection type cholesteric liquid crystal displayer. The writing or erasing method for the flexible reflection type cholesteric liquid crystal displayer comprises the following steps that a cholesteric liquid crystal mixture is injected into a liquid crystal cell, wherein the cholesteric liquid crystal mixture contains chiral compounds, and the mass fraction of the chiral compounds is 10%; voltage is applied to the cholesteric liquid crystal mixture so that the cholesteric liquid crystal mixture can be in a focal state (3), wherein the voltage applied to the cholesteric liquid crystal mixture is larger than the threshold voltage at which the planar texture of the cholesteric liquid crystal mixture can be transformed to the focal texture and is smaller than the breakdown voltage of the cholesteric liquid crystal mixture; cholesteric liquid crystal is made to be in the focal state (3) or the planar state (4) by controlling the temperature and the voltage, and thus writing or erasing is achieved, wherein the voltage is controlled to change in a waved mode. According to the writing or erasing method for the flexible reflection type cholesteric liquid crystal displayer, when the focal texture of the cholesteric liquid crystal is converted into the planar texture or the planar texture of the cholesteric liquid crystal is converted into the focal texture, the response time is shortened by 20% compared with the prior art, and the brightness is greatly improved.
Description
Technical field
This patent belongs to flexible display technical field, and tool body is writing or method for deleting of the flexible reflective cholesteric phase liquid crystal display of ー kind.
Background technology
Society development in science and technology is maked rapid progress, and electronic information series products and our life are closely bound up.From mobile phone, computer to domestic TV, wrist-watch screen etc., liquid crystal is with irresistible mighty torrent development, and its range of application is also in constantly development, and function is also more perfect.
Flexible display technologies is the inexorable trend of current display development, and the technique of preparing flexible panel also has a great development.Flexible base, board has the feature of mechanical flexibility and high density interconnect, now adopts flexible base, board to realize the also more and more of encapsulating structure.With respect to traditional display technique, as glass substrate, flexible display technologies has the features such as quality is light, ultra-thin, easy to carry, cost is low, is the main development direction of following display, thus its grind make internal disorder or usurp significant.
Cholesteric liquid crystal has the feature of high brightness, high-contrast, low energy consumption.It has unique bistable characteristic, and in voltage-controlled situation, can keep not needing, and this specific character can be controlled trichromatic gray scale.Flexible reflective cholesteric liquid crystal applications according to himself pitch only to giving and reflection with the light of the identical wavelength of its length, and the light transmission of other wavelength.
The writing or wiping of cholesteric liquid crystal displays in prior art is to use simple heating or apply voltage to make cholesteric liquid crystal bore state by Jiao to convert plane state to, make its reflection speed voltage request lower, duty higher.The patent No. is 200510086631.0 Chinese patent, it discloses a kind of wiping or wiring method cholesteric liquid crystal stored information, the method is to have used a kind of helically twisted power to be mixed into cholesteric liquid crystal with temperature chipal compounds and the nematic liquid crystal reducing that raise, and the massfraction of chipal compounds is 0.1-20%.The method can be unfavorable with power plant, magnetic field, do not use negative liquid crystal or double frequency to drive in the situation of liquid crystal, realize cholesteric liquid crystal and change planar texture with speed faster into by focal conic texture.It is fast not enough that but the method makes cholesteric liquid crystal change planar texture speed into by focal conic texture, can not meet current demand.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention utilize pitch variation with temperature and change, temperature variation causes pitch to change, catoptrical frequency also changes, presents the principle of the variation of color, the display mode that provides a kind of heat to write or wipe.In the present invention, the heat temperature control that writes or wipe simultaneously, applies and presents the voltage that certain ripple formula changes, and in the time that focal conic texture and the planar texture of cholesteric liquid crystal are changed mutually, its response time improves 20% than the time of the prior art, controls conveniently, reduces costs.
Writing or a method for deleting of flexible reflective cholesteric phase liquid crystal display, it comprises the steps:
(1) cholesteric liquid crystal potpourri is injected in liquid crystal cell, in described cholesteric liquid crystal potpourri, contains massfraction and be 10% chipal compounds;
(2) apply voltage to cholesteric liquid crystal potpourri, make cholesteric liquid crystal potpourri bore state in Jiao; Threshold voltage that the planar texture that the described voltage applying is greater than cholesteric liquid crystal potpourri changes to focal conic texture, be less than the voltage breakdown of cholesteric liquid crystal potpourri;
(3) make cholesteric liquid crystal bore state or plane state in Jiao by controlling temperature and voltage, realize and write or wipe; Described control voltage is to make voltage present the voltage that ripple formula changes.
Such scheme preferably, is write fashionablely without information, cholesteric liquid crystal is in planar texture; Need information to write fashionable, the region that will write is heated with hot mode, apply simultaneously and be the voltage that ripple formula changes, after in the time stopping heating, temperature is down to room temperature immediately, cholesteric liquid crystal becomes burnt cone state, realizes heat and writes.
Above-mentioned arbitrary scheme preferably, needs information to write fashionable, and the temperature that the region that write is heated is 55-70 DEG C.
More preferably, need information to write fashionable, the temperature that the region that write is heated is 60 DEG C.
Above-mentioned arbitrary scheme preferably, need to wipe time, heat by the region that needs are wiped, and makes liquid crystal bore state from Jiao and become plane state, and realization is wiped; Or the region of directly wiping at needs applies voltage, make liquid crystal be converted into burnt cone state by plane state, realization is wiped.
Preferably, need to wipe time, the temperature that heat in the region that needs are wiped is 85-100 DEG C to above-mentioned arbitrary scheme.
More preferably, need to wipe time, the temperature that heat in the region that needs are wiped is 90 DEG C.
Preferably, need to wipe time, the magnitude of voltage that the region of wiping at needs applies is 10-15V to above-mentioned arbitrary scheme.
Preferably, described liquid crystal cell top and bottom are the flexible pet substrates that scribble transparent conductive film to above-mentioned arbitrary scheme.
Preferably, described transparent conductive film is ITO electrode to above-mentioned arbitrary scheme, on described ITO electrode, is added with grid template, and it is fixed that described grid template is carried out UV-curing after injecting curing materials, forms cholesteric liquid crystal potpourri and stores grid.When heat in the region that needs are write or wiped, be that the flexible base, board of cholesteric liquid crystal potpourri storage grid both sides is heated.
Preferably, what described cholesteric liquid crystal potpourri stored grid is shaped as square, triangle or circle to above-mentioned arbitrary scheme.
Preferably, described ITO electrode is connected with heat conduction and/or electric installation above-mentioned arbitrary scheme.
Preferably, flexible pet substrate is connected with the reflectance coating of cholesteric phase corresponding wavelength above-mentioned arbitrary scheme below described liquid crystal cell.
Preferably, described in step (3), control temperature is to heat by thermal probe to above-mentioned arbitrary scheme; Described thermal probe heating voltage is 7.2v direct current, and resolution is 500dpi, heat time 40s.
Preferably, described in step (3), control temperature is directly to heat with laser pulse to above-mentioned arbitrary scheme, and the heat time is 40s.
Preferably, the voltage that described ripple formula changes is to be square wave formula to change to above-mentioned arbitrary scheme.
Preferably, the voltage that described ripple formula changes is to be sine wave type to change to above-mentioned arbitrary scheme.
Preferably, the voltage that described ripple formula changes is to be sawtooth wave formula to change to above-mentioned arbitrary scheme.
Above-mentioned arbitrary scheme preferably, while cholesteric liquid crystal potpourri being injected in liquid crystal cell described in step (1), is to carry out under vacuum condition.Can avoid like this generation of bubble.
Writing or erasing apparatus system of a kind of flexible reflective cholesteric phase liquid crystal display, comprise liquid crystal display, it is characterized in that, also comprise: cholesteric liquid crystal potpourri is injected into the device in liquid crystal cell, in described cholesteric liquid crystal potpourri, contains massfraction and be 10% chipal compounds; Execute alive voltage device to cholesteric liquid crystal potpourri, described voltage makes cholesteric liquid crystal potpourri bore state in Jiao; Threshold voltage that the planar texture that described voltage is greater than cholesteric liquid crystal potpourri changes to focal conic texture, be less than the voltage breakdown of cholesteric liquid crystal potpourri; Control the temperature device of cholesteric liquid crystal mixture temperature; Make cholesteric liquid crystal bore state or plane state in Jiao by described voltage device and temperature device, realize and write or wipe; Described voltage is to make voltage present the voltage that ripple formula changes.In the present invention, while being planar texture, being plane state, is burnt cone state while being focal conic texture.
Utilize writing or method for deleting of flexible reflective cholesteric phase liquid crystal display of the present invention, can make the reflectivity of cholesteric liquid crystal can reach 87%, its brightness is greatly improved; The present invention is that different ripple formula variations is heated by controlling voltage, and corresponding variation can occur the reflectivity of cholesteric liquid crystal, changes GTG by such mode, can realize heat and write or wipe; Utilize writing or erase mode of the complete thermal control of the present invention, can make the response speed of cholesteric liquid crystal improve 20%, improve the quality of image; Voltage when work is less than the 20-25% of prior art.
Brief description of the drawings
Fig. 1 be according to the flexible reflective cholesteric phase liquid crystal display of the present invention write or a preferred embodiment of method for deleting in the diagram of cholesteric liquid crystal in planar texture.
Fig. 2 be according to the flexible reflective cholesteric phase liquid crystal display of the present invention write or a preferred embodiment of method for deleting in the diagram of cholesteric liquid crystal in focal conic texture.
Fig. 3 be according to the flexible reflective cholesteric phase liquid crystal display of the present invention write or a preferred embodiment of method for deleting in control the gray scale variation schematic diagram of cholesteric liquid crystal.
In figure:
1-substrate, 2-ITO electrode, the burnt cone of 3-state liquid crystal, 4-plane state liquid crystal, 5-reflectance coating.
Embodiment
In order further to understand technical scheme of the present invention, below in conjunction with specific embodiment, the present invention is at length set forth.Embodiment only has exemplary effect to the present invention, and does not have any restrictive effect, and the amendment of any unsubstantiality that those skilled in the art makes on basis of the present invention, all should belong to protection scope of the present invention.
Embodiment 1
Writing or a method for deleting of flexible reflective cholesteric phase liquid crystal display, it comprises the steps:
(1) cholesteric liquid crystal potpourri is injected in liquid crystal cell, in described cholesteric liquid crystal potpourri, contains massfraction and be 10% chipal compounds;
(2) apply voltage to cholesteric liquid crystal potpourri, make cholesteric liquid crystal potpourri bore state in Jiao; Threshold voltage that the planar texture that the described voltage applying is greater than cholesteric liquid crystal potpourri changes to focal conic texture, be less than the voltage breakdown of cholesteric liquid crystal potpourri;
(3) make cholesteric liquid crystal bore state or plane state in Jiao by controlling temperature and voltage, realize and write or wipe; Described control voltage is to make voltage present the voltage that ripple formula changes.
In the present embodiment, write fashionablely without information, cholesteric liquid crystal is in planar texture; Need information to write fashionable, with presenting the type of heating that a standing wave formula changes, the region that will write is heated, apply simultaneously and be the voltage that ripple formula changes, in the time stopping heating, temperature is down to immediately cholesteric liquid crystal after room temperature and is become burnt cone state 3, realization heat writes, as shown in Figure 1.
In the present embodiment, need information to write fashionable, the temperature that the region that write is heated is 60 DEG C.
In the present embodiment, need to wipe time, heat in the region that needs are wiped, and makes cholesteric liquid crystal bore state 3 from Jiao and become plane state 4, and realization is wiped, as shown in Figure 2.
In the present embodiment, need to wipe time, the temperature that heat in the region that needs are wiped is 90 DEG C.
In the present embodiment, described liquid crystal cell top and bottom are the flexible pet substrates 1 that scribble transparent conductive film.
In the present embodiment, described transparent conductive film is ITO electrode 2, on described ITO electrode 2, is added with grid template, and it is fixed that described grid template is carried out UV-curing after injecting curing materials, forms cholesteric liquid crystal potpourri and stores grid.When heat in the region that needs are write or wiped, be that the flexible base, board of cholesteric liquid crystal potpourri storage grid both sides is heated.
In the present embodiment, described cholesteric liquid crystal potpourri stores the square that is shaped as of grid.
In the present embodiment, described ITO electrode is connected with heat conduction and/or electric installation.
In the present embodiment, below described liquid crystal cell, flexible pet substrate is connected with the reflectance coating 5 of cholesteric phase corresponding wavelength.
In the present embodiment, described in step (3), controlling temperature is to heat by thermal probe; Described thermal probe heating voltage is 7.2v direct current, and resolution is 500dpi, heat time 40s.
In the present embodiment, the voltage that described ripple formula changes is to be square wave formula to change.
In the present embodiment, while cholesteric liquid crystal potpourri being injected in liquid crystal cell described in step (1), be to carry out under vacuum condition.Can avoid like this generation of bubble.
In the present embodiment, described is that the variation of square wave formula is heated by controlling voltage, and corresponding variation occurs the reflectivity of cholesteric liquid crystal, controls the gray scale variation schematic diagram of cholesteric liquid crystal as shown in Figure 3, and its reflectivity ranges up to 87%.
Embodiment 2
Writing or a method for deleting of flexible reflective cholesteric phase liquid crystal display, it comprises the steps:
(1) cholesteric liquid crystal potpourri is injected in liquid crystal cell, in described cholesteric liquid crystal potpourri, contains massfraction and be 10% chipal compounds;
(2) apply voltage to cholesteric liquid crystal potpourri, make cholesteric liquid crystal potpourri bore state in Jiao; Threshold voltage that the planar texture that the described voltage applying is greater than cholesteric liquid crystal potpourri changes to focal conic texture, be less than the voltage breakdown of cholesteric liquid crystal potpourri;
(3) make cholesteric liquid crystal bore state or plane state in Jiao by controlling temperature and voltage, realize and write or wipe; Described control voltage is to make voltage present the voltage that ripple formula changes.
In the present embodiment, write fashionablely without information, cholesteric liquid crystal is in planar texture; Need information to write fashionable, use the type of heating that presents a standing wave formula variation to heat the region that will write, apply simultaneously and be the voltage that ripple formula changes, after in the time stopping heating, temperature is down to room temperature immediately, cholesteric liquid crystal becomes burnt cone state, realizes heat and writes.
In the present embodiment, need information to write fashionable, the temperature that the region that write is heated is 55 DEG C.
In the present embodiment, need to wipe time, heat in the region that needs are wiped, and makes liquid crystal bore state from Jiao and become plane state, and realization is wiped.
In the present embodiment, need to wipe time, it is 85 DEG C by the temperature that needs erase area to heat.
In the present embodiment, described liquid crystal cell top and bottom are the flexible pet substrates that scribble transparent conductive film.
In the present embodiment, described transparent conductive film is ITO electrode, on described ITO electrode, is added with grid template, and it is fixed that described grid template is carried out UV-curing after injecting curing materials, forms cholesteric liquid crystal potpourri and stores grid.When heat in the region that needs are write or wiped, be that the flexible base, board of cholesteric liquid crystal potpourri storage grid both sides is heated.
In the present embodiment, described cholesteric liquid crystal potpourri stores the triangle that is shaped as of grid.
In the present embodiment, described ITO electrode be connected with electric installation with heat conduction.
In the present embodiment, below described liquid crystal cell, flexible pet substrate is connected with the reflectance coating of cholesteric phase corresponding wavelength.
In the present embodiment, described in step (3), controlling temperature is directly to heat with laser pulse, and the heat time is 40s.
In the present embodiment, the voltage that described ripple formula changes is to be square wave formula to change.
In the present embodiment, while cholesteric liquid crystal potpourri being injected in liquid crystal cell described in step (1), be to carry out under vacuum condition.Can avoid like this generation of bubble.
Embodiment 3
Writing or a method for deleting of flexible reflective cholesteric phase liquid crystal display, it comprises the steps:
(1) cholesteric liquid crystal potpourri is injected in liquid crystal cell, in described cholesteric liquid crystal potpourri, contains massfraction and be 10% chipal compounds;
(2) apply voltage to cholesteric liquid crystal potpourri, make cholesteric liquid crystal potpourri bore state in Jiao; Threshold voltage that the planar texture that the described voltage applying is greater than cholesteric liquid crystal potpourri changes to focal conic texture, be less than the voltage breakdown of cholesteric liquid crystal potpourri;
(3) make cholesteric liquid crystal bore state or plane state in Jiao by controlling temperature and voltage, realize and write or wipe; Described control voltage is to make voltage present the voltage that ripple formula changes.
In the present embodiment, write fashionablely without information, cholesteric liquid crystal is in planar texture; Need information to write fashionable, use the type of heating that presents a standing wave formula variation to heat the region that will write, apply simultaneously and be the voltage that ripple formula changes, after in the time stopping heating, temperature is down to room temperature immediately, cholesteric liquid crystal becomes burnt cone state, realizes heat and writes.
In the present embodiment, need information to write fashionable, the temperature that the region that write is heated is 70 DEG C.
In the present embodiment, need to wipe time, heat in the region that needs are wiped, and makes liquid crystal bore state from Jiao and become plane state, and realization is wiped.
In the present embodiment, need to wipe time, the temperature that heat in the region that needs are wiped is 100 DEG C.
In the present embodiment, described liquid crystal cell top and bottom are the flexible pet substrates that scribble transparent conductive film.
In the present embodiment, described transparent conductive film is ITO electrode, on described ITO electrode, is added with grid template, and it is fixed that described grid template is carried out UV-curing after injecting curing materials, forms cholesteric liquid crystal potpourri and stores grid.When heat in the region that needs are write or wiped, be that the flexible base, board of cholesteric liquid crystal potpourri storage grid both sides is heated.
In the present embodiment, described cholesteric liquid crystal potpourri stores the circle that is shaped as of grid.
In the present embodiment, described ITO electrode is connected with electric installation with heat conduction.
In the present embodiment, below described liquid crystal cell, flexible pet substrate is connected with the reflectance coating of cholesteric phase corresponding wavelength.
In the present embodiment, described in step (3), controlling temperature is to heat by thermal probe; Described thermal probe heating voltage is 7.2v direct current, and resolution is 500dpi, heat time 40s.
In the present embodiment, the voltage that described ripple formula changes is to be sawtooth wave formula to change.
In the present embodiment, while cholesteric liquid crystal potpourri being injected in liquid crystal cell described in step (1), be to carry out under vacuum condition.Can avoid like this generation of bubble.
Embodiment 4
Writing or a method for deleting of flexible reflective cholesteric phase liquid crystal display, it comprises the steps:
(1) cholesteric liquid crystal potpourri is injected in liquid crystal cell, in described cholesteric liquid crystal potpourri, contains massfraction and be 10% chipal compounds;
(2) apply voltage to cholesteric liquid crystal potpourri, make cholesteric liquid crystal potpourri bore state in Jiao; Threshold voltage that the planar texture that the described voltage applying is greater than cholesteric liquid crystal potpourri changes to focal conic texture, be less than the voltage breakdown of cholesteric liquid crystal potpourri;
(3) make cholesteric liquid crystal bore state or plane state in Jiao by controlling temperature and voltage, realize and write or wipe; Described control voltage is to make voltage present the voltage that ripple formula changes.
In the present embodiment, write fashionablely without information, cholesteric liquid crystal is in planar texture; Need information to write fashionable, use the type of heating that presents a standing wave formula variation to heat the region that will write, apply simultaneously and be the voltage that ripple formula changes, after in the time stopping heating, temperature is down to room temperature immediately, cholesteric liquid crystal becomes burnt cone state, realizes heat and writes.
In the present embodiment, need information to write fashionable, the temperature that the region that write is heated is 65 DEG C.
In the present embodiment, need to wipe time, the region of wiping at needs applies voltage, makes liquid crystal be converted into burnt cone state by plane state, and realization is wiped.
In the present embodiment, need to wipe time, the magnitude of voltage that the region of wiping at needs applies is 12V.
In the present embodiment, described liquid crystal cell top and bottom are the flexible pet substrates that scribble transparent conductive film.
In the present embodiment, described transparent conductive film is ITO electrode, on described ITO electrode, is added with grid template, and it is fixed that described grid template is carried out UV-curing after injecting curing materials, forms cholesteric liquid crystal potpourri and stores grid.When heat in the region that needs are write or wiped, be that the flexible base, board of cholesteric liquid crystal potpourri storage grid both sides is heated.
In the present embodiment, described cholesteric liquid crystal potpourri stores the square that is shaped as of grid.
In the present embodiment, described ITO electrode is connected with heat-transfer device.
In the present embodiment, below described liquid crystal cell, flexible pet substrate is connected with the reflectance coating of cholesteric phase corresponding wavelength.
In the present embodiment, described in step (3), controlling temperature is directly to heat with laser pulse, and the heat time is 40s.
In the present embodiment, the voltage that described ripple formula changes is to be square wave formula to change.
In the present embodiment, while cholesteric liquid crystal potpourri being injected in liquid crystal cell described in step (1), be to carry out under vacuum condition.Can avoid like this generation of bubble.
Embodiment 5
Writing or a method for deleting of flexible reflective cholesteric phase liquid crystal display, it comprises the steps:
(1) cholesteric liquid crystal potpourri is injected in liquid crystal cell, in described cholesteric liquid crystal potpourri, contains massfraction and be 10% chipal compounds;
(2) apply voltage to cholesteric liquid crystal potpourri, make cholesteric liquid crystal potpourri bore state in Jiao; Threshold voltage that the planar texture that the described voltage applying is greater than cholesteric liquid crystal potpourri changes to focal conic texture, be less than the voltage breakdown of cholesteric liquid crystal potpourri;
(3) make cholesteric liquid crystal bore state or plane state in Jiao by controlling temperature and voltage, realize and write or wipe; Described control voltage is to make voltage present the voltage that ripple formula changes.
In the present embodiment, write fashionablely without information, cholesteric liquid crystal is in planar texture; Need information to write fashionable, use the type of heating that presents a standing wave formula variation to heat the region that will write, apply simultaneously and be the voltage that ripple formula changes, after in the time stopping heating, temperature is down to room temperature immediately, cholesteric liquid crystal becomes burnt cone state, realizes heat and writes.
In the present embodiment, needing information to write fashionable heating-up temperature is 62 DEG C.
In the present embodiment, need to wipe time, the region of directly wiping at needs applies voltage, makes liquid crystal be converted into burnt cone state by plane state, and realization is wiped.
In the present embodiment, need to wipe time, the magnitude of voltage that the region of wiping at needs applies is 10V.
In the present embodiment, described liquid crystal cell top and bottom are the flexible pet substrates that scribble transparent conductive film.
In the present embodiment, described transparent conductive film is ITO electrode, on described ITO electrode, is added with grid template, and it is fixed that described grid template is carried out UV-curing after injecting curing materials, forms cholesteric liquid crystal potpourri and stores grid.When heat in the region that needs are write or wiped, be that the flexible base, board of cholesteric liquid crystal potpourri storage grid both sides is heated.
In the present embodiment, described cholesteric liquid crystal potpourri stores the square that is shaped as of grid.
In the present embodiment, described ITO electrode is connected with electric installation.
In the present embodiment, below described liquid crystal cell, flexible pet substrate is connected with the reflectance coating of cholesteric phase corresponding wavelength.
In the present embodiment, described in step (3), controlling temperature is to heat by thermal probe; Described thermal probe heating voltage is 7.2v direct current, and resolution is 500dpi, heat time 40s.
In the present embodiment, the voltage that described ripple formula changes is to be sine wave type to change.
In the present embodiment, while cholesteric liquid crystal potpourri being injected in liquid crystal cell described in step (1), be to carry out under vacuum condition.Can avoid like this generation of bubble.
Claims (10)
1. writing or a method for deleting of flexible reflective cholesteric phase liquid crystal display, it comprises the steps:
(1) cholesteric liquid crystal potpourri is injected in liquid crystal cell, in described cholesteric liquid crystal potpourri, contains massfraction and be 10% chipal compounds;
(2) apply voltage to cholesteric liquid crystal potpourri, make cholesteric liquid crystal potpourri bore state in Jiao; Threshold voltage that the planar texture that the described voltage applying is greater than cholesteric liquid crystal potpourri changes to focal conic texture, be less than the voltage breakdown of cholesteric liquid crystal potpourri;
(3) make cholesteric liquid crystal bore state or plane state in Jiao by controlling temperature and voltage, realize and write or wipe; Described control voltage is to make voltage present the voltage that ripple formula changes.
2. writing or method for deleting of flexible reflective cholesteric phase liquid crystal display as claimed in claim 1, is characterized in that, writes fashionablely without information, and cholesteric liquid crystal is in planar texture; Need information to write fashionable, the region that will write is heated with hot mode, apply simultaneously and be the voltage that ripple formula changes, after in the time stopping heating, temperature is down to room temperature immediately, cholesteric liquid crystal becomes burnt cone state, realizes heat and writes.
3. writing or method for deleting of flexible reflective cholesteric phase liquid crystal display as claimed in claim 2, is characterized in that, needs information to write fashionable, and the temperature that the region that write is heated is 55-70 DEG C.
4. writing or method for deleting of flexible reflective cholesteric phase liquid crystal display as claimed in claim 3, is characterized in that, needs information to write fashionable, and the temperature that the region that write is heated is 60 DEG C.
5. writing or method for deleting of flexible reflective cholesteric phase liquid crystal display as claimed in claim 1, is characterized in that, need to wipe time, heat in the region that needs are wiped, and makes liquid crystal bore state from Jiao and becomes plane state, and realization is wiped; Or the region of directly wiping at needs applies voltage, make liquid crystal be converted into burnt cone state by plane state, realization is wiped.
6. writing or method for deleting of flexible reflective cholesteric phase liquid crystal display as claimed in claim 5, is characterized in that, need to wipe time, the temperature that heat in the region that needs are wiped is 85-100 DEG C.
7. writing or method for deleting of flexible reflective cholesteric phase liquid crystal display as claimed in claim 6, is characterized in that, need to wipe time, the temperature that heat in the region that needs are wiped is 90 DEG C.
8. writing or method for deleting of flexible reflective cholesteric phase liquid crystal display as claimed in claim 5, is characterized in that, need to wipe time, the magnitude of voltage that the region of wiping at needs applies is 10-15V.
9. writing or method for deleting of flexible reflective cholesteric phase liquid crystal display as claimed in claim 1, is characterized in that, described liquid crystal cell top and bottom are the flexible pet substrates that scribble transparent conductive film.
10. writing or method for deleting of flexible reflective cholesteric phase liquid crystal display as claimed in claim 9, it is characterized in that, described transparent conductive film is ITO electrode, on described ITO electrode, be added with grid template, it is fixed that described grid template is carried out UV-curing after injecting curing materials, forms cholesteric liquid crystal potpourri and store grid.
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| CN201410313786.2A CN104049395A (en) | 2014-06-28 | 2014-07-03 | Writing or erasing method for flexible reflection type cholesteric liquid crystal displayer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105954903A (en) * | 2016-07-20 | 2016-09-21 | 京东方科技集团股份有限公司 | Liquid crystal display panel and display method and display assembly thereof |
| CN106168724A (en) * | 2016-08-04 | 2016-11-30 | 深圳市唯酷光电有限公司 | Classroom blackboard system, liquid crystal blackboard, blackboard brush, nothing electricity handwriting screen and manufacture method |
| CN106588866A (en) * | 2016-11-21 | 2017-04-26 | 北京化工大学 | Chiral fluorescence molecule optical switch, preparation method thereof, cholesteric phase liquid crystal composition, preparation method thereof, and liquid crystal display (LCD) |
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| JP2000328064A (en) * | 1999-05-19 | 2000-11-28 | Dainippon Ink & Chem Inc | Liquid crystal optical element and its switching method |
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