CN104049401A - Control method for different color gray scales in flexile liquid crystal colorized display - Google Patents
Control method for different color gray scales in flexile liquid crystal colorized display Download PDFInfo
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Abstract
The invention belongs to the technical field of flexible display and particularly relates to a control method for different color gray scales in flexile liquid crystal colorized display. Based on the reflection characteristic of cholesteric liquid crystals, colorization is achieved according to specific responses of the liquid crystals to voltage, light and heat, and three kinds of liquid crystals are respectively subjected to voltage and temperature control by finding out chromatic values of three primary colors, namely red, green and blue, of color pixels to be displayed and the corresponding relations between the chromatic values and all the gray scales and brightness so that the gray scales can change as expected.
Description
Technical field
The present invention relates to flexible display technologies field, the control method of different colours GTG in showing in particular to a kind of flexible liquid crystal colorize.
Background technology
Flexible display technologies develops the upsurge having begun one's study in the world at present, the production conception of rol l-to-roll also very complete and and the project that is put to develop, under this kind of fast-developing situation, the display quality of flexible screen, especially GTG control, contrast, saturation degree, the efficient demonstration of colorize is just extremely urgent.It is by the bistable feature of cholesteric liquid crystal mostly that traditional GTG shows, controls the emissivity of liquid crystal, to reach the demonstration of GTG by controlling voltage.It is of low quality that traditional GTG shows that preparation method exists, contrast, the bad defect of saturation degree.
For example Granted publication number is the Chinese invention patent of CN100405163C, it discloses a kind of LCD display panel structure of external color filter, comprise external color, upper and lower polaroid, upper lower glass substrate, ITO conductive layer, PI oriented layer and backlight module, the position of described external color filter can be in upper polaroid outside, or between upper polaroid and liquid crystal display top glass substrate, or between lower polaroid and liquid crystal display lower glass substrate, or between lower polaroid and backlight module.By such structural adjustment, simplify preparation technology's requirement of colour liquid crystal display device panel, improve colored filter utilization factor and reduce costs.The glass substrate adopting in this invention can not turn down repeatedly, and the colorize display effect of manufacturing is not good.
For example Granted publication number is the Chinese invention patent of CN100527206C again, it discloses a kind of colorful backlight control method, can allow the GTG value of each group colored backlight in display be changed with dispar variation respectively, the redness that also changes each group colored backlight is later backlight, green colored backlights and blue GTG value backlight might not be identical.The present invention can promote dynamic range, contrast and the color saturation of the original image of display simultaneously, and then the related consumed power of display entirety that allows reduces more compared to traditional method.This control method calculates by theory, does not carry out actual experiment, and the possibility that exists different liquid crystal mutually to mix, and reduces the effect that colorize shows.
Summary of the invention
The above-mentioned technological deficiency existing in order to solve prior art, the preparation method and the preparation facilities that the object of the present invention is to provide a kind of flexible liquid crystal colorize to show, reflection feature based on cholesteric liquid crystal, by liquid crystal, the specific reaction of voltage, light and heat is completed the realization of colorize, want the redness, green, blue trichromatic chromatic value of display color pixel and the corresponding relation with each GTG and brightness thereof by finding, three kinds of liquid crystal are carried out respectively to the control of voltage and temperature, so that the variation of estimating occurs its GTG.
To achieve these goals, technical scheme of the present invention is that during a kind of flexible liquid crystal colorize shows, the control method of different colours GTG, is characterized in that specifically comprising the steps:
The first step, manufactures specific transparency conductive electrode, in order to the single primary colors of the single pixel of LCD screen is applied to voltage and temperature, illumination;
Second step, is coated with oriented material, and carries out the orientation process of transparency conducting layer, so that liquid crystal better completes arrangement;
The 3rd step, carries out the UV-irradiation of corresponding different wave length, frequency light intensity to different grid, make it to form the liquid crystal of the pitch that redness, green, blue wavelength that this grid should reflect adapt;
The 4th step, is connected heat conduction and electric installation with electrode, in order to by the signal obtaining, be converted into voltage and thermal signal and pass to the primary colors region of the pixel that will show this information;
The 5th step, seals the edge of LCD screen;
The 6th step, wants the redness, green, blue trichromatic chromatic value of display color pixel and the corresponding relation with each GTG and brightness thereof by finding, three kinds of liquid crystal are carried out respectively to the control of voltage and temperature, so that the variation of expectation occurs its GTG.
In described second step, the method that described coating oriented material adopts comprises at least one in wet coating technique or dry-film technology technology.
In above-mentioned arbitrary scheme, preferably, the orientation process of described transparency conducting layer is adopted as the mode of light orientation.
In above-mentioned arbitrary scheme, preferably, in described the 5th step, adopt glue AB glue to seal the edge of LCD screen.
In above-mentioned arbitrary scheme preferably, the electrode being positioned on flexible base, board by the cholesteric liquid crystal both sides to reflection Red applies voltage by wire, make it show the colored corresponding reflectivity of red chromatic value that show, when the cholesteric liquid crystal of reflection Red is that amplitude is 10-20v being subject to voltage, frequency is 40-60kHZ, and it is 70% that the square-wave voltage that be 0.01s action time is made used time reflectivity.
In above-mentioned arbitrary scheme, preferably, the cholesteric liquid crystal of reflection Red is 10-20v being subject to voltage, and frequency is 40-60kHZ, and always making used time reflectivity with the triangle wave voltage that the time is 0.01s is 60%.
In above-mentioned arbitrary scheme, preferably, the cholesteric liquid crystal of reflection Red is 10-20v being subject to voltage, and frequency is 40-60kHZ, and the sine wave effect reflectivity that be 0.01s action time is 2%.
In above-mentioned arbitrary scheme, preferably, when the cholesteric liquid crystal of reflection Red, by controlling different waveforms, the limit of making the reflectivity of used time when its more alike sine wave is 0; Its more image space ripple to make the reflectivity limit of used time be 70%, be 70% to be bright state as the highest state of reflectivity using initial reflectivity, the state that is 0 by reflectivity is divided as dark state, obtains the GTG and the relation that applies waveform of liquid crystal, can realize and control red any GTG.
In above-mentioned arbitrary scheme preferably, the electrode being positioned on flexible base, board by the cholesteric liquid crystal both sides to reflection green applies voltage and temperature by wire, make it show the colored reflectivity corresponding to green chromatic value that show, when the cholesteric liquid crystal of the cholesteric liquid crystal reflection green to reflection green is that amplitude is 10-20v being subject to voltage, frequency is 40-60kHZ, and it is 65% that the square-wave voltage that be 0.01s action time is made used time reflectivity.
In above-mentioned arbitrary scheme, preferably, the cholesteric liquid crystal of reflection green is 10-20v being subject to voltage, and frequency is 40-60kHZ, and always making used time reflectivity with the triangle wave voltage that the time is 0.01s is 50%.
In above-mentioned arbitrary scheme, preferably, be 10-20v to the cholesteric liquid crystal of reflection green being subject to voltage, frequency is 40-60kHZ, and the sine wave effect reflectivity that be 0.01s action time is 2%.
In above-mentioned arbitrary scheme preferably, the cholesteric liquid crystal of reflection green is by controlling different waveforms, its more image space ripple to make the reflectivity limit of used time be 65%, be 65% to be bright state as the highest state of reflectivity using initial reflectivity, the state that is 0 by reflectivity is divided as dark state, obtain the GTG and the relation that applies waveform of liquid crystal, can realize and control green any GTG.
In above-mentioned arbitrary scheme preferably, the electrode being positioned on flexible base, board by the cholesteric liquid crystal both sides to reflection blue applies voltage and temperature by wire, make it show the colored reflectivity corresponding to blue chromatic value that show, when the cholesteric liquid crystal of reflection blue is that amplitude is 10-20v being subject to voltage, frequency is 40-60kHZ, and it is 60% that the square-wave voltage that be 0.01s action time is made used time reflectivity.
In above-mentioned arbitrary scheme, preferably, the cholesteric liquid crystal of reflection blue is 10-20v being subject to voltage, and frequency is 40-60kHZ, and always making used time reflectivity with the triangle wave voltage that the time is 0.01s is 55%.
In above-mentioned arbitrary scheme, preferably, the cholesteric liquid crystal of reflection blue is 10-20v being subject to voltage, and frequency is 40-60kHZ, and the sine wave effect reflectivity that be 0.01s action time is 2%.
In above-mentioned arbitrary scheme preferably, the cholesteric liquid crystal of reflection blue is by controlling different waveforms, the limit of making the reflectivity of used time when its more alike sine wave is 0, its more image space ripple to make the reflectivity limit of used time be 60%, be 60% to be bright state as the highest state of reflectivity using initial reflectivity, the state that is 0 by reflectivity is divided as dark state, to GTG and the relation that applies waveform of liquid crystal, can realize and control blue any GTG.
In above-mentioned arbitrary scheme preferably, the electrode being positioned on flexible base, board by the cholesteric liquid crystal both sides to reflection green applies voltage and temperature by wire, make it show the colored reflectivity corresponding to green chromatic value that show, the cholesteric liquid crystal of reflection green is that amplitude is 5-15v being subject to voltage, frequency is 70-90kHZ, and it is 70% that the square-wave voltage that be 0.01s action time is made used time reflectivity.
In above-mentioned arbitrary scheme, preferably, the cholesteric liquid crystal of reflection green is 5-15v being subject to voltage, and frequency is 60-80kHZ, and always making used time reflectivity with the square-wave voltage that the time is 0.01s is 60%.
In above-mentioned arbitrary scheme, preferably, the cholesteric liquid crystal of reflection green is 10-20v being subject to voltage, and frequency is 5-15kHZ, and the square wave effect reflectivity that be 0.01s action time is 2%.
In above-mentioned arbitrary scheme preferably, by controlling different voltage magnitudes, when its limit of making the reflectivity of used time at this kind of square wave of 10-20v is 0, when its reflectivity limit of doing the used time at this kind of square wave of 5-15v is 70%, be 70% to be bright state as the highest state of reflectivity using reflectivity, the state that is 0 by reflectivity is divided as dark state, obtains the GTG of liquid crystal and executes alive relation, can realize and control green any GTG.
In above-mentioned arbitrary scheme preferably, the electrode that the cholesteric liquid crystal both sides of reflection blue are positioned on flexible base, board applies voltage and temperature by wire, make it show the colored reflectivity corresponding to blue chromatic value that show, the cholesteric liquid crystal of reflection blue is that amplitude is 10-15v being subject to voltage, frequency is 70-90kHZ, and it is 70% that the square-wave voltage that be 0.01s action time is made used time reflectivity.
In above-mentioned arbitrary scheme, preferably, the cholesteric liquid crystal of reflection blue is 10-15v being subject to voltage, and frequency is 60-80kHZ, and always making used time reflectivity with the square-wave voltage that the time is 0.01s is 60%.
In above-mentioned arbitrary scheme, preferably, the cholesteric liquid crystal of reflection blue is 15-25v being subject to voltage, and frequency is 5-15kHZ, and the square wave effect reflectivity that be 0.01s action time is 2%.
In above-mentioned arbitrary scheme preferably, by controlling different voltage magnitudes, when its limit of making the reflectivity of used time at this kind of square wave of 15-25v is 0, when its reflectivity limit of doing the used time at this kind of square wave of 10-15v is 70%, be 70% to be bright state as the highest state of reflectivity using reflectivity, the state that is 0 by reflectivity is divided as dark state, obtains the GTG of liquid crystal and executes alive relation, can realize and control blue any GTG.
Brief description of the drawings
Fig. 1 is according to the structural representation of a preferred embodiment of the preparation facilities of flexible liquid crystal colorize demonstration of the present invention.
Fig. 2 is the fence structure after fixing according to liquid crystal pitch in the preparation method of flexible liquid crystal colorize demonstration of the present invention.
Fig. 3 is according to the relative position structural drawing of transparency electrode and flexible base, board in Fig. 1 of a preferred embodiment of the preparation facilities of flexible liquid crystal colorize demonstration of the present invention.
Fig. 4 is according to the gray scale variation of controlling the cholesteric liquid crystal of reflection Red in the control method of different colours GTG in flexible liquid crystal colorize demonstration of the present invention.
Fig. 5 is according to the gray scale variation of controlling the cholesteric liquid crystal of reflection green in the control method of different colours GTG in flexible liquid crystal colorize demonstration of the present invention.
Fig. 6 is according to the gray scale variation of controlling the cholesteric liquid crystal of reflection blue in the control method of different colours GTG in flexible liquid crystal colorize demonstration of the present invention.
Attached number in the figure:
Upper flexible base, board 1, upper transparency electrode 2, upper strata oriented layer 3, sealing glue 4, liquid crystal grid 5, liquid crystal layer 6, lower floor's oriented layer 8, lower transparency electrode 9, lower flexible base, board 10, flexible base, board 12, transparent conductive film 13.
Embodiment
The following description is only exemplary and be not in order to limit the disclosure, application or purposes in essence.Below in conjunction with Figure of description to the present invention in above-mentioned arbitrary scheme preferably, embodiment be further described.
To achieve these goals, technical scheme of the present invention is that during a kind of flexible liquid crystal colorize shows, the control method of different colours GTG, is characterized in that specifically comprising the steps:
During flexible liquid crystal colorize shows, a control method for different colours GTG, is characterized in that specifically comprising the steps:
The first step, manufactures specific transparency conductive electrode, in order to the single primary colors of the single pixel of LCD screen is applied to voltage and temperature, illumination;
Second step, is coated with oriented material, and carries out the orientation process of transparency conducting layer, so that liquid crystal better completes arrangement;
The 3rd step, carries out the UV-irradiation of corresponding different wave length, frequency light intensity to different grid, make it to form the liquid crystal of the pitch that redness, green, blue wavelength that this grid should reflect adapt;
The 4th step, is connected heat conduction and electric installation with electrode, in order to by the signal obtaining, be converted into voltage and thermal signal and pass to the primary colors region of the pixel that will show this information;
The 5th step, seals the edge of LCD screen;
The 6th step, wants the redness, green, blue trichromatic chromatic value of display color pixel and the corresponding relation with each GTG and brightness thereof by finding, three kinds of liquid crystal are carried out respectively to the control of voltage and temperature, so that the variation of expectation occurs its GTG.
In the present embodiment, in described second step, the method that described coating oriented material adopts comprises at least one in wet coating technique or dry-film technology technology.
In the present embodiment, the orientation process of described transparency conducting layer is adopted as the mode of light orientation.
In the present embodiment, in described the 5th step, adopt glue AB glue to seal the edge of LCD screen.
As shown in Figure 4, according to of the present invention in above-mentioned arbitrary scheme preferably, the gray scale variation of the cholesteric liquid crystal of middle control reflection Red.The electrode that the cholesteric liquid crystal both sides of reflection Red are positioned on flexible base, board applies voltage by wire, makes it show the colored corresponding reflectivity of red chromatic value that show.If the cholesteric liquid crystal of reflection Red is that amplitude is 15v being subject to voltage, frequency is 50kHZ, and it is 70% that the square-wave voltage that be 0.01s action time is made used time reflectivity; Be 15v being subject to voltage, frequency is 50kHZ, and always making used time reflectivity with the triangle wave voltage that the time is 0.01s is 60%; Be 15v being subject to voltage, frequency is 50kHZ, and the sine wave effect reflectivity that be 0.01s action time is 2%; By controlling different waveforms, the limit of making the reflectivity of used time when its more alike sine wave is 0; Its more image space ripple to make the reflectivity limit of used time be 70%, be 70% to be bright state as the highest state of reflectivity using initial reflectivity, the state that is 0 by reflectivity is divided as dark state, obtains the GTG and the relation that applies waveform of liquid crystal, can realize and control red any GTG.
As shown in Figure 5, the electrode that the cholesteric liquid crystal both sides of reflection green are positioned on flexible base, board applies voltage and temperature by wire, makes it show the colored reflectivity corresponding to green chromatic value that show.If the cholesteric liquid crystal of reflection green is that amplitude is 15v being subject to voltage, frequency is 50kHZ, and it is 65% that the square-wave voltage that be 0.01s action time is made used time reflectivity; Be 15v being subject to voltage, frequency is 50kHZ, and always making used time reflectivity with the triangle wave voltage that the time is 0.01s is 50%; Be 15v being subject to voltage, frequency is 50kHZ, and the sine wave effect reflectivity that be 0.01s action time is 2%; By controlling different waveforms, the limit of making the reflectivity of used time when its more alike sine wave is 0; Its more image space ripple to make the reflectivity limit of used time be 65%, be 65% to be bright state as the highest state of reflectivity using initial reflectivity, the state that is 0 by reflectivity is divided as dark state, obtains the GTG and the relation that applies waveform of liquid crystal, can realize and control green any GTG.
As shown in Figure 6, the electrode that the cholesteric liquid crystal both sides of reflection blue are positioned on flexible base, board applies voltage and temperature by wire, makes it show the colored reflectivity corresponding to blue chromatic value that show.If the cholesteric liquid crystal of reflection blue is that amplitude is 15v being subject to voltage, frequency is 50kHZ, and it is 60% that the square-wave voltage that be 0.01s action time is made used time reflectivity; Be 15v being subject to voltage, frequency is 50kHZ, and always making used time reflectivity with the triangle wave voltage that the time is 0.01s is 55%; Be 15v being subject to voltage, frequency is 50kHZ, and the sine wave effect reflectivity that be 0.01s action time is 2%; By controlling different waveforms, the limit of making the reflectivity of used time when its more alike sine wave is 0; Its more image space ripple to make the reflectivity limit of used time be 60%, be 60% to be bright state as the highest state of reflectivity using initial reflectivity, the state that is 0 by reflectivity is divided as dark state, to GTG and the relation that applies waveform of liquid crystal, can realize and control blue any GTG.
The mode of controlling GTG also can be for realizing the control of GTG by the different frequency that changes same type voltage.The electrode being positioned on flexible base, board as the cholesteric liquid crystal both sides to reflection Red applies voltage by wire, makes it show the colored reflectivity corresponding to red chromatic value that show.If the cholesteric liquid crystal of reflection Red is that amplitude is 15v being subject to voltage, frequency is 50kHZ, and it is 70% that the square-wave voltage that be 0.01s action time is made used time reflectivity; Be 15v being subject to voltage, frequency is 45kHZ, and always making used time reflectivity with the square-wave voltage that the time is 0.01s is 60%; Be 15v being subject to voltage, frequency is 5kHZ, and the square wave effect reflectivity that be 0.01s action time is 2%; By controlling different frequencies, when its limit of making the reflectivity of used time at this kind of square wave of 5kHZ is 0; When its reflectivity limit of doing the used time at this kind of square wave of 50kHZ is 70%, be 70% to be bright state as the highest state of reflectivity using reflectivity, the state that is 0 by reflectivity is divided as dark state, obtain the GTG and the relation that applies waveform frequency of liquid crystal, can realize and control red any GTG.
The electrode that the cholesteric liquid crystal both sides of reflection green are positioned on flexible base, board applies voltage and temperature by wire, makes it show the colored reflectivity corresponding to green chromatic value that show.If the cholesteric liquid crystal of reflection green is that amplitude is 15v being subject to voltage, frequency is 60kHZ, and it is 70% that the square-wave voltage that be 0.01s action time is made used time reflectivity; Be 15v being subject to voltage, frequency is 50kHZ, and always making used time reflectivity with the square-wave voltage that the time is 0.01s is 60%; Be 15v being subject to voltage, frequency is 8kHZ, and the square wave effect reflectivity that be 0.01s action time is 2%; By controlling different frequencies, when its limit of making the reflectivity of used time at this kind of square wave of 5kHZ is 0; When its reflectivity limit of doing the used time at this kind of square wave of 50kHZ is 70%, be 70% to be bright state as the highest state of reflectivity using reflectivity, the state that is 0 by reflectivity is divided as dark state, to GTG and the relation that applies waveform frequency of liquid crystal, can realize and control green any GTG.
The electrode that the cholesteric liquid crystal both sides of reflection blue are positioned on flexible base, board applies voltage and temperature by wire, makes it show the colored reflectivity corresponding to blue chromatic value that show.If the cholesteric liquid crystal of reflection blue is that amplitude is 15v being subject to voltage, frequency is 80kHZ, and it is 70% that the square-wave voltage that be 0.01s action time is made used time reflectivity; Be 15v being subject to voltage, frequency is 70kHZ, and always making used time reflectivity with the square-wave voltage that the time is 0.01s is 60%; Be 15v being subject to voltage, frequency is 10kHZ, and the square wave effect reflectivity that be 0.01s action time is 2%; By controlling different frequencies, when its limit of making the reflectivity of used time at this kind of square wave of 5kHZ is 0; When its reflectivity limit of doing the used time at this kind of square wave of 50kHZ is 70%, be 70% to be bright state as the highest state of reflectivity using reflectivity, the state that is 0 by reflectivity is divided as dark state, obtain the GTG and the relation that applies waveform frequency of liquid crystal, can realize and control blue any GTG.
The method of controlling GTG also can be for reaching the object of controlling GTG by the amplitude that changes voltage.The electrode being positioned on flexible base, board as the cholesteric liquid crystal both sides to reflection Red applies voltage and temperature by wire, makes it show the colored reflectivity corresponding to red chromatic value that show.If the cholesteric liquid crystal of reflection Red is that amplitude is 12v being subject to voltage, frequency is 80kHZ, and it is 70% that the square-wave voltage that be 0.01s action time is made used time reflectivity; Be 15v being subject to voltage, frequency is 70kHZ, and always making used time reflectivity with the square-wave voltage that the time is 0.01s is 60%; Be 20v being subject to voltage, frequency is 10kHZ, and the square wave effect reflectivity that be 0.01s action time is 2%; By controlling different amplitudes, when its limit of making the reflectivity of used time at this kind of square wave of 20v is 0; When its reflectivity limit of doing the used time at this kind of square wave of 12v is 70%, be 70% to be bright state as the highest state of reflectivity using reflectivity, the state that is 0 by reflectivity is divided as dark state, obtains the GTG of liquid crystal and executes alive relation, can realize and control red any GTG.
The electrode that the cholesteric liquid crystal both sides of reflection green are positioned on flexible base, board applies voltage and temperature by wire, makes it show the colored reflectivity corresponding to green chromatic value that show.If the cholesteric liquid crystal of reflection green is that amplitude is 10v being subject to voltage, frequency is 80kHZ, and it is 70% that the square-wave voltage that be 0.01s action time is made used time reflectivity; Be 11v being subject to voltage, frequency is 70kHZ, and always making used time reflectivity with the square-wave voltage that the time is 0.01s is 60%; Be 16v being subject to voltage, frequency is 10kHZ, and the square wave effect reflectivity that be 0.01s action time is 2%; By controlling different voltage magnitudes, when its limit of making the reflectivity of used time at this kind of square wave of 16v is 0; When its reflectivity limit of doing the used time at this kind of square wave of 10v is 70%, be 70% to be bright state as the highest state of reflectivity using reflectivity, the state that is 0 by reflectivity is divided as dark state, obtains the GTG of liquid crystal and executes alive relation, can realize and control green any GTG.
The electrode that the cholesteric liquid crystal both sides of reflection blue are positioned on flexible base, board applies voltage and temperature by wire, makes it show the colored reflectivity corresponding to blue chromatic value that show.If the cholesteric liquid crystal of reflection blue is that amplitude is 12v being subject to voltage, frequency is 80kHZ, and it is 70% that the square-wave voltage that be 0.01s action time is made used time reflectivity; Be 13v being subject to voltage, frequency is 70kHZ, and always making used time reflectivity with the square-wave voltage that the time is 0.01s is 60%; Be 19v being subject to voltage, frequency is 10kHZ, and the square wave effect reflectivity that be 0.01s action time is 2%; By controlling different voltage magnitudes, when its limit of making the reflectivity of used time at this kind of square wave of 19v is 0; When its reflectivity limit of doing the used time at this kind of square wave of 12v is 70%, be 70% to be bright state as the highest state of reflectivity using reflectivity, the state that is 0 by reflectivity is divided as dark state, obtains the GTG of liquid crystal and executes alive relation, can realize and control blue any GTG.
In above-mentioned steps, only to showing that to pixel relevant redness, green, blue grid carry out the control of voltage and temperature.
Consult shown in Fig. 1, the above-mentioned technological deficiency existing in order to solve prior art, the preparation method and the preparation facilities that the object of the present invention is to provide a kind of flexible liquid crystal colorize to show, reflection feature based on cholesteric liquid crystal, by liquid crystal, the specific reaction of voltage, light and heat is completed the realization of colorize, by apply the parameter processing such as different wave, different frequency, different duty under same voltage, and under different voltage, apply different wave, add that temperature, illumination etc. are processed and form the GTG more definite, quality is higher.Reaching the aspect such as contrast, saturation degree better shows.
The preparation method that flexible liquid crystal colorize shows, comprises the preparation of voltage-controlled device, it is characterized in that specifically comprising the steps:
The first step, completes the stickup of transparency conductive electrode on flexible base, board;
Second step, forms airtight grid by the mode of uv photopolymerization;
The 3rd step, utilizes certain way to be injected in grid in the liquid crystal that is mixed with polymer monomer, carries out illumination with ultraviolet light, makes to form respectively in different grid reflection Red, green, blue corresponding cholesteric liquid crystal;
The 4th step, irradiates and makes the liquid crystal that its formation can reflection Red liquid crystal grid that accordingly should reflection Red; Liquid crystal grid that accordingly should reflection green is irradiated and makes the liquid crystal that its formation can reflection green; Liquid crystal grid that accordingly should reflection blue is irradiated and makes the liquid crystal that its formation can reflection blue;
The 5th step, to formed liquid crystal grid, carries out UV-irradiation, makes to be present in the polymer polymerizing in liquid crystal, to complete the preparation of reflection Red, green, blue liquid crystal.
In above-mentioned steps one, complete and provide voltage-controlled device, object to be more effectively liquid crystal grid to be controlled in real time, and more save the energy, raise the efficiency.
In above-mentioned steps four, the formation of airtight grid is mainly by uv photopolymerization, make each grid form fence structure, and other spaces is uninfluenced, liquid crystal is stored wherein, liquid crystal grid that more accordingly should reflection Red is irradiated and makes the liquid crystal that its formation can reflection Red afterwards; Liquid crystal grid that accordingly should reflection green is irradiated and makes the liquid crystal that its formation can reflection green; Liquid crystal grid that accordingly should reflection blue is irradiated and makes the liquid crystal that its formation can reflection blue.
Above-mentioned fence structure is to solve the monochromatic difficult problem of injecting, and each red liquid crystal grid is around green and blue grid, common form a pixel, and can improve irrigation crystal efficiency, and the waste that has effectively reduced liquid crystal reduces the idle space on screen.
In the present embodiment, in the 5th step, by established three primary colors liquid crystal grid is applied voltage and is controlled temperature by addressing mode, regulate red, green, blue GTG, match so that the GTG of the liquid crystal of reflection Red, green, blueness and brightness and wish form chromatic value and the brightness of color.
In the present embodiment, the GTG of described reflection Red, green, blue liquid crystal is aided with temperature control and is realized the GTG control of red green blue tricolor by the voltage applying.
In the present embodiment, three dichroic liquid crystal grid in the 4th step are by tristimulus values and the brightness of the wish apparent color that transmits in advance, by applying, voltage drives and the hybrid mode control cholesteric liquid crystal of heating points to arrow, and then control each grid internal reflection redness, green, blue reflectivity, to reach the object of controlling GTG and brightness, complete the demonstration of full color.
The preparation facilities that the present invention also provides a kind of flexible liquid crystal colorize to show, this device is provided with upper strata flexible base, board 1, upper strata oriented layer 3, lower floor's oriented layer 8, lower floor's flexible base, board 10 from top to bottom.
In the present embodiment, between described upper flexible base, board 1 and upper strata oriented layer 3, be provided with transparency electrode 2.
In the present embodiment, between described lower flexible base, board 10 and lower floor's oriented layer 8, be provided with lower transparency electrode 9.
In the present embodiment, multiple liquid crystal grid 5 that distribute between described upper transparency electrode 2 and lower transparency electrode 9.
In the present embodiment, the edge of described this device is provided with sealing glue 4.
In the present embodiment, in described liquid crystal grid 5, be mixed with nanometer polymer.
In the present embodiment, described upper flexible base, board 1 is coated with transparent conductive film with the top of lower flexible base, board 10.The elasticity of this transparent conductive film is better, can be used in repeatedly bending, and formation before bending maybe can recover, and completes the conducting function of expectation.
In the present embodiment, described upper transparency electrode 2 is selected ITO or other metal oxide materials.
In the present embodiment, described lower transparency electrode 9 is selected ITO or other metal oxide materials.
In the present embodiment, the material of described upper transparency electrode 2 is close with flexible base, board elastic modulus.
In the present embodiment, the material of described lower transparency electrode 9 is with close with flexible base, board elastic modulus.
In the present embodiment, the insulating material of the wire of described upper transparency electrode 2 is Ethylene/tetrafluoroethylene.The insulating material of the wire of upper transparency electrode 2 can be Ethylene/tetrafluoroethylene, can be also other insulating material, and conductive material can be the materials such as copper, aluminium, and Heat Conduction Material can be copper or other metal materials.
In the present embodiment, the insulating material of the wire of described lower transparency electrode 9 is Ethylene/tetrafluoroethylene.
In the present embodiment, described upper transparency electrode 2, lower transparency electrode 9 and control circuit layer take up space minimum as thin as a wafer, have reduced pixel idle space around; Liquid crystal layer applies corresponding voltage by upper and lower base plate and heat is controlled trichromatic GTG.
The present invention also provides the control method of different colours GTG in a kind of flexible liquid crystal colorize demonstration.Manufacture specific transparency conductive electrode, in order to the single primary colors of the single pixel of LCD screen is applied to voltage and temperature, illumination.Utilize glue the edge of LCD screen to be sealed as AB glue etc.
As shown in Figure 3, on flexible base, board 12, be coated with transparent conductive film 13.The elasticity of this transparent conductive film 13 is better, can be used in repeatedly bending, and formation before bending maybe can recover, and completes the conducting function of expectation.
The present invention is by wet coating technique, and the technology such as dry-film technology are carried out the coating of oriented material, and utilize friction orientation, light orientation, and the modes such as ion beam orientation are carried out the orientation process of transparency conducting layer, so that liquid crystal better completes arrangement.
As Fig. 4, in the liquid crystal pouring into, be mixed with nanometer polymer, polymkeric substance can solidify under the irradiation of ultraviolet light, forms the grid one by one that stops liquid crystal to flow.In this step, should note not needing the part being cured will utilize the devices such as blackboard to carry out light isolation.
Different grid is carried out to the UV-irradiation of corresponding different wave length, frequency light intensity, make it to form the liquid crystal of the pitch that redness, green, blue wavelength that this grid should reflect adapt.
Heat conduction and electric installation are connected with electrode, in order to by the signal obtaining, are converted into voltage and thermal signal and pass to the primary colors region of the pixel that will show this information.
Want the redness, green, blue trichromatic chromatic value of display color pixel and the corresponding relation with each GTG and brightness thereof by finding, three kinds of liquid crystal are carried out respectively to the control of voltage and temperature, so that the variation of expectation occurs its GTG.
In sum, the present invention is by a kind of mode that forms more easily reflection Red, green, blue liquid crystal, more high-level efficiency and in high quality by Liquid crystal pour in controlled grid, and make liquid crystal realize the control of desired red color, green, blue pitch; The present invention is encapsulated by the mode of ultraviolet light polymerization, by the chromatic value of wish Show Color and the information of brightness that obtain, specific grid is carried out to the control of voltage, realizes the colorize of a pixel, and and then realize the full-color of whole device; The mode that the present invention injects liquid crystal after by each grid of first involution can reduce the risk that liquid crystal that pitch is different does not very mix, and by three-primary colours GTG control accurately, the high-quality completely that has completed pixel color is realized.
It will be apparent to those skilled in the art that preparation method that flexible liquid crystal colorize of the present invention shows and preparation facilities comprise the combination in any of each several part in this instructions.As space is limited and in order to make instructions simple and clear, these combinations to be introduced one by one in detail at this, but seen after this instructions, the scope of the present invention that the combination in any of the each several part being made up of this instructions forms is self-evident.
Claims (10)
1. a control method for different colours GTG in flexible liquid crystal colorize demonstration, is characterized in that specifically comprising the steps:
The first step, manufactures specific transparency conductive electrode, in order to the single primary colors of the single pixel of LCD screen is applied to voltage and temperature, illumination;
Second step, is coated with oriented material, and carries out the orientation process of transparency conducting layer, so that liquid crystal better completes arrangement;
The 3rd step, carries out the UV-irradiation of corresponding different wave length, frequency light intensity to different grid, make it to form the liquid crystal of the pitch that redness, green, blue wavelength that this grid should reflect adapt;
The 4th step, is connected heat conduction and electric installation with electrode, in order to by the signal obtaining, be converted into voltage and thermal signal and pass to the primary colors region of the pixel that will show this information;
The 5th step, seals the edge of LCD screen;
The 6th step, wants the redness, green, blue trichromatic chromatic value of display color pixel and the corresponding relation with each GTG and brightness thereof by finding, three kinds of liquid crystal are carried out respectively to the control of voltage and temperature, so that the variation of expectation occurs its GTG.
2. the control method of different colours GTG in flexible liquid crystal colorize demonstration as claimed in claim 1, it is characterized in that: in described second step, the method that described coating oriented material adopts comprises at least one in wet coating technique or dry-film technology technology.
3. the control method of different colours GTG in flexible liquid crystal colorize demonstration as claimed in claim 2, is characterized in that: the orientation process of described transparency conducting layer is adopted as the mode of light orientation.
4. the control method of different colours GTG in flexible liquid crystal colorize demonstration as claimed in claim 1, is characterized in that: in described the 5th step, adopt glue AB glue to seal the edge of LCD screen.
5. the control method of different colours GTG in flexible liquid crystal colorize demonstration as claimed in claim 1, it is characterized in that: the electrode being positioned on flexible base, board by the cholesteric liquid crystal both sides to reflection Red applies voltage by wire, make it show the colored corresponding reflectivity of red chromatic value that show, when the cholesteric liquid crystal of reflection Red is that amplitude is 10-20v being subject to voltage, frequency is 40-60kHZ, and it is 70% that the square-wave voltage that be 0.01s action time is made used time reflectivity.
6. the control method of different colours GTG in flexible liquid crystal colorize demonstration as claimed in claim 5, it is characterized in that: the cholesteric liquid crystal of reflection Red is 10-20v being subject to voltage, frequency is 40-60kHZ, and always making used time reflectivity with the triangle wave voltage that the time is 0.01s is 60%.
7. the control method of different colours GTG in flexible liquid crystal colorize demonstration as claimed in claim 5, it is characterized in that: the cholesteric liquid crystal of reflection Red is 10-20v being subject to voltage, frequency is 40-60kHZ, and the sine wave effect reflectivity that be 0.01s action time is 2%.
Flexible liquid crystal colorize as claimed in claim 5 show in the control method of different colours GTG, it is characterized in that: when the cholesteric liquid crystal of reflection Red, by controlling different waveforms, the limit of making the reflectivity of used time when its more alike sine wave is 0; Its more image space ripple to make the reflectivity limit of used time be 70%, be 70% to be bright state as the highest state of reflectivity using initial reflectivity, the state that is 0 by reflectivity is divided as dark state, obtains the GTG and the relation that applies waveform of liquid crystal, can realize and control red any GTG.
9. the control method of different colours GTG in flexible liquid crystal colorize demonstration as claimed in claim 1, it is characterized in that: the electrode being positioned on flexible base, board by the cholesteric liquid crystal both sides to reflection green applies voltage and temperature by wire, make it show the colored reflectivity corresponding to green chromatic value that show, when the cholesteric liquid crystal of the cholesteric liquid crystal reflection green to reflection green is that amplitude is 10-20v being subject to voltage, frequency is 40-60kHZ, and it is 65% that the square-wave voltage that be 0.01s action time is made used time reflectivity.
10. the control method of different colours GTG in flexible liquid crystal colorize demonstration as claimed in claim 9, it is characterized in that: the cholesteric liquid crystal of reflection green is 10-20v being subject to voltage, frequency is 40-60kHZ, and always making used time reflectivity with the triangle wave voltage that the time is 0.01s is 50%.
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| US20110285928A1 (en) * | 2010-05-18 | 2011-11-24 | The Hong Kong University Of Science And Technology | Liquid crystal display cell with fast response and continuous gray scale |
| CN103246101A (en) * | 2013-05-17 | 2013-08-14 | 复旦大学 | Flexible reflection type cholesteric liquid crystal display and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20110285928A1 (en) * | 2010-05-18 | 2011-11-24 | The Hong Kong University Of Science And Technology | Liquid crystal display cell with fast response and continuous gray scale |
| CN103246101A (en) * | 2013-05-17 | 2013-08-14 | 复旦大学 | Flexible reflection type cholesteric liquid crystal display and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019033638A1 (en) * | 2017-08-16 | 2019-02-21 | 惠科股份有限公司 | White balance adjustment method for display device, and display device |
| US11050986B2 (en) | 2017-08-16 | 2021-06-29 | HKC Corporation Limited | Display device having white balance adjusting module and white balance adjusting method thereof |
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