CN102346344A - Photoelectric element and device, and method for generating different colors on multiple photoelectric elements - Google Patents
Photoelectric element and device, and method for generating different colors on multiple photoelectric elements Download PDFInfo
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- CN102346344A CN102346344A CN2010102425205A CN201010242520A CN102346344A CN 102346344 A CN102346344 A CN 102346344A CN 2010102425205 A CN2010102425205 A CN 2010102425205A CN 201010242520 A CN201010242520 A CN 201010242520A CN 102346344 A CN102346344 A CN 102346344A
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Abstract
The invention provides a photoelectric element, a photoelectric device, and a method for generating different colors on multiple photoelectric elements. The photoelectric element comprises an enclosing body, fluid and particles, wherein the fluid is filled in the enclosing body, and the particles are dispersed in the fluid; and one of the enclosing body and the fluid comprises a photochromic material. The photoelectric device comprises two oppositely-arranged electrodes and multiple photoelectric elements arranged between the two electrodes. The method comprises the following steps: forming multiple photoelectric elements in a first pixel area and a second pixel area, wherein each photoelectric element contains two types of photochromic materials; shielding the photochromic materials in the photoelectric elements in the second pixel area; and enabling the photoelectric device to be exposed to light, so that the color of the photochromic materials in the photoelectric elements in the first pixel area is changed through illumination.
Description
Technical field
The present invention relates to a kind of photovalve and device and a kind of method that on a plurality of photovalves, produces different colours, particularly a kind of photovalve and device and a kind of that contains photochromic material in the method that is containing generation different colours on the photovalve of photochromic material.
Background technology
U.S. Patent number 6,517,618 disclose a kind of electrophoresis-type ink display.This electrophoresis-type ink display comprises two conductors, is arranged on one of them a leg of these two conductors, and is arranged between these two conductors and the ink of filling in this leg.This ink comprise a suspending liquid and be dispersed in this suspending liquid and can receive electric field driven and in this suspending liquid the particle of two of electrophoresis kinds of different colours.One of them of these two kinds of particles comprises a sequestrant and a photochromic material, makes this electrophoresis-type ink display can possess the colored function that shows.
U.S. Patent number 7,410,750 disclose a kind of color monitor.This color monitor comprises the coating of a base material and on this base material.This coating comprises a kind of demonstration particle that contains two kinds of different photochromic materials.This photochromic material can produce various colors under different optical wavelength range irradiations.
U.S. Patent number 7,521,159 disclose a kind of color electric paper.This color electric paper comprises a base material, and one is stacked at the photochromatic layer on this base material, is stacked at two electrodes of this photochromatic layer, and the liquid crystal layer that is arranged between this electrode.This liquid crystal layer can receive control and the conversion between a pellucidity and self color state of electric field.This photochromatic layer comprises a photochromic material makes the color state of this photochromatic layer to be changed.This photochromatic layer can be a transparence under predetermined wavelength scope irradiation, and under another predetermined wavelength scope irradiation, is changed into the color state of himself.In operation, when this liquid crystal layer is during in self color state, this Electronic Paper shows self color of this liquid crystal layer; When this liquid crystal layer is to be during in himself color state in pellucidity and this photochromatic layer, and this Electronic Paper shows self color of this photochromatic layer; And when this liquid crystal layer and this photochromatic layer be during in pellucidity, this Electronic Paper shows the color of this base material.
Above-mentioned all patents all disclose a kind of color that utilizes two reversible chemical states of photochromic material itself to change pixel.Yet; This patent do not disclose a kind of use have the different fixing color photochromic material pixel and utilize the displacement of the particle in this pixel that the element of the photochromic material of the constant color with expectation is shown, change the color of pixel thus.Here be noted that so-called constant color is meant that this photochromic material is fixed on one of them state and shows the color under this state.In addition, the mode of the making display of above-mentioned all patent is neither to form the colorized optical filtering array as colored filter, striped pattern color optical filtering array for example, mosaic pattern color optical filtering array and Δ-pattern color optical filtering array.
Summary of the invention
In order on a plurality of photovalves and electrooptical device, to produce different colours.The present invention provides a kind of photovalve, a kind of electrooptical device and a kind of method that on a plurality of photovalves of an electrooptical device, produces different colours.
One embodiment of the invention photovalve comprises one and seals body, and be filled in the fluid that seals in the body, and one is scattered in the fluid and is can receive electric field driven and a kind of particle of electrophoresis in fluid; Wherein, one of them that seals body and fluid comprises at least a photochromic material.
One embodiment of the invention electrooptical device comprises the pixel that a plurality of arrays are arranged, and each pixel comprises a plurality of times-pixel cell; Each time-pixel cell comprises one first electrode; With opposed one second electrode that separates of first electrode; At least one is located at the body that seals between first electrode and second electrode; One is filled in the fluid that seals in the body, and one is scattered in the fluid and in fluid, can receives electric field driven and a kind of particle of electrophoresis; Wherein, one of them that seals body and fluid comprises at least a photochromic material.
One embodiment of the invention electrooptical device comprises the pixel that a plurality of arrays are arranged; Each pixel comprises a first time-pixel cell and a second time-pixel cell; Each first time-pixel cell and the second time-pixel cell comprise one first electrode, and opposed one second electrode that separates of first electrode, the body, that seals that at least one is located between first electrode and second electrode be filled in the fluid that seals in the body; And be scattered at least two kinds of different particles in the fluid; One of them of these two kinds of particles comprises at least two kinds of different photochromic materials and in fluid, can receive electric field driven and move; Another kind of particle is lighttight; This photochromic material can produce one first color and one second color respectively under the illumination of one first predetermined wavelength range and one first predetermined wavelength range, this first color is different with this second color; Wherein, In the first time-pixel cell seal this particle in the body this one of them shine and have first color through first predetermined wavelength range, and this one of them warp second predetermined wavelength range that seals this particle in the body in the second time-pixel cell shines and have second color.
The present invention provides a kind of method that on a plurality of photovalves of an electrooptical device, produces different colours.This electrooptical device comprises two electrodes of setting up relatively, and one of them of this electrode is transparent, defines a plurality of zones jointly between these two electrodes, and each zone has next-door neighbour's a district for the second time, district and for the first time.
One embodiment of the invention method comprises the following step: at each district and a plurality of photovalves of formation in the district for the second time, each photovalve contains at least two kinds of photochromic materials regional the first time; Cover this photochromic material in the photovalve in this of this zone distinguished for the second time; And electrooptical device is exposed under the illumination, make that this photochromic material in the photovalve in this of this zone distinguished is for the first time produced a color by illumination.
The present invention provides a kind of method that on a plurality of photovalves of an electrooptical device, produces different colours; This electrooptical device comprises two electrodes of setting up relatively; One of them of this electrode is transparent; Define the pixel region that a plurality of arrays are arranged between these two electrodes jointly, each pixel region has next-door neighbour's a first time-pixel region and a second time-pixel region at least.
One embodiment of the invention method comprises the following step: the first time-pixel region and the second time-pixel region at each pixel region form a plurality of photovalves; Each photovalve contains at least two kinds of different photochromic materials; This photochromic material can produce one first color and one second color respectively under the illumination of one first predetermined wavelength range and one second predetermined wavelength range; First predetermined wavelength range is different from second predetermined wavelength range, and first color is different from second color; Cover this photochromic material in the photovalve in this second time-pixel region of this pixel region; Electrooptical device is exposed under the illumination of first predetermined wavelength range, make this pixel region etc. this photochromic material in the photovalve in the first time-pixel region produced this first kind of color by illumination; Cover this photochromic material in the photovalve in this first time-pixel region; And electrooptical device is exposed under the illumination of second predetermined wavelength range, make that this photochromic material in the photovalve in this second time-pixel region is produced this second kind of color by illumination.
Compared to prior art; The present invention is through adding photochromic material in this photovalve of electrooptical device; Just have the pixel of the photochromic material of different fixing color, and utilize the displacement of the particle in this pixel that the element of the photochromic material of the constant color with expectation is shown, change the color of pixel through use; Thereby can produce electrooptical device, for example Electronic Paper or e-book with colour display functions.Also have; Can on display, form colorized optical filtering array through the present invention in the method that produces different colours on the photovalve as colored filter; Striped pattern color optical filtering array for example, mosaic pattern color optical filtering array and Δ-pattern color optical filtering array.
Description of drawings
Figure 1A is the combination synoptic diagram of first preferred embodiment of electrooptical device of the present invention.
Figure 1B is the combination synoptic diagram that has the embodiment of four times-pixel cell among Figure 1A in each pixel cell.
Fig. 2 A to 2E is the synoptic diagram of the consecutive steps of the present invention's method of on the photovalve of first preferred embodiment, producing different colours.
Fig. 3 is the combination synoptic diagram of second preferred embodiment of electrooptical device of the present invention.
Fig. 4 is the combination synoptic diagram of the 3rd preferred embodiment of electrooptical device of the present invention.
Fig. 5 A to 5C is the synoptic diagram of the consecutive steps of the present invention's method of on the photovalve of the 3rd preferred embodiment, producing different colours.
Fig. 6 is the combination synoptic diagram of the 4th preferred embodiment of electrooptical device of the present invention.
Fig. 7 A to 7C is the synoptic diagram of the consecutive steps of the present invention's method of on the photovalve of the 4th preferred embodiment, producing different colours.
The main element symbol description
10 frames
2 first electrode base boards
3 second electrode base boards
4 Trackpads
5 pixel cells
51 first time-pixel cells
52 second time-pixel cells
53 for the third time-pixel cell
54 the 4th times-pixel cell
6 first electrodes
7 second electrodes
8 photovalves
81,811,812,813 seal body
82,821,822,823 fluids
83,831 first particles
84 second particles
9 pixel regions
91 first time-pixel regions
92 second time-pixel regions
93 for the third time-pixel region
100 first light shields
200 second light shields
300 the 3rd light shields
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in the following detailed description that cooperates with reference to three graphic preferred embodiments, can clearly appear.Electrooptical device of the present invention can be used to display, for example display such as Electronic Paper or electric paper book.
Figure 1A is the combination synoptic diagram of first preferred embodiment of electrooptical device of the present invention.Figure 1B is the combination synoptic diagram that has the embodiment of four times-pixel cell among Figure 1A in each pixel cell.See also Figure 1A; First preferred embodiment of electrooptical device of the present invention comprises a frame 10; Be installed in transparent first electrode base board 2 and one second electrode base board 3 on the frame 10; A plurality ofly be installed between first electrode base board 2 and second electrode base board 3 pixel 5 of arranging (graphic only show single pixel cell), and one foldedly is located at the transparent touch plate 4 on this first electrode base board 2 with array.Each pixel 5 comprise a first time-pixel cell 51, a second time-pixel cell 52 and for the third time-pixel cell 53.Each first time-pixel cell 51; For the second time-pixel cell 52 with for the third time-pixel cell 53 comprises transparent first electrode 6; With these first electrode, 6 opposed one second electrodes 7 that separate, and a plurality of photovalve of being located between first electrode 6 and second electrode 78 (only showing a photovalve in graphic).This first time-pixel cell 51, this second time-pixel cell 52 with this for the third time-this first electrode 6 of pixel cell 53 is to be arranged on this first electrode base board 2 and is integrally formed and conducting film that link to each other.This conducting film is preferably by the ITO material and forms.This first time-pixel cell 51, this second time-pixel cell 52 with this for the third time-this second electrode 7 of pixel cell 53 is to be arranged on second electrode base board 3, and is separated by with equidistance.
Each photovalve 8 comprises that one seals body 81, and is filled in the fluid 82 that seals in the body 81, electrophoresis liquid for example, and be scattered in a plurality of first particles 83 and a plurality of second particles 84 different in the fluid 82.First particle 83 comprises by three kinds of different potpourris that photochromic material evenly mixed; And be with first polarity charge thereby in fluid 82, can receive electric field driven and move with the electrophoresis mode; And second particle 84 is lighttight and the band and first opposite polarity second polarity charge; Thereby, in fluid 82, can receive electric field driven and move with the electrophoresis mode.This photochromic material can be respectively produces one first color, one second color and one the 3rd color under the illumination of one first predetermined wavelength range, one second predetermined wavelength range and one the 3rd predetermined wavelength range, first color, second color are different with the 3rd color; Wherein, First particle 83 in the body 81 of sealing in the first time-pixel cell 51 is to shine through first predetermined wavelength range and have first color; First particle 83 in the body of sealing in the second time-pixel cell 52 is to shine and have second color through second predetermined wavelength range, and for the third time-and first particle 83 in the body 81 of sealing in the pixel cell 53 is to shine through the 3rd predetermined wavelength range and have the 3rd color.
Preferable first color, second color and the 3rd color are respectively red, and be green and blue down, and first preferred embodiment like this can produce the multicolour pattern of redgreenblue periodic arrangement.Second particle is preferably black, so can increase the contrast of color.In another embodiment; Can increase by one the 4th time-pixel cell 54 (showing) again in each pixel 5 like Figure 1B; And this first particle 831 that seals in the body 81 in the 4th time-pixel cell is white in color, so can produces the multicolour pattern of red, green, blue and white four look periodic arrangement.The practice that first particle 83 is white in color can be white and reaches by adding another kind of photochromic material or first particle 83 color of self without illumination the time.
In another embodiment, the electrophoresis but second particle 84 can be neutrality makes second particle 84 can be evenly dispersed in the fluid 82.Under preferable, seal body 81 and form for capsule shape and by Lauxite (urea-formadehyde resin) material.
This photochromic material of convention can be a mineral-type photochromic material or one organic type of photochromic material.Typical mineral-type photochromic material comprises Ag-TiO
2, MoO
3, WO
3, V
2O
5, and NiO.Typical organic type of photochromic material comprises azo-compound (Azobenzenes), Ya Liuji aniline (Salicylidene anilines), fulgide compound (Fulgides), chromene (Chromenes), two aromatic ethylene compounds (Diarylethenes), spirooxazine compound (Spirooxazines) and spiropyran compounds (Spiropyrans) etc.
The fluid 82 that convention can be used as electrophoresis liquid can be a non-polar organic solvent or a low polarity machine solvent.Typical non-polar organic solvent comprises nonane, certain herbaceous plants with big flowers alkane, synthesising different structure alkane and synthetic straight chain alkane etc.Typical low polar organic solvent comprises toluene, benzene, xylene and chloroform etc.
After the irradiate light of the electrooptical device of present embodiment via different predetermined wavelength ranges, can make each time- pixel cell 51,52,53 has the Presentation Function of different colours each other.Please refer to Figure 1A; In operation; On will a pixel during exhibit red at electrooptical device; As long as apply respectively the first time-pixel cell 51 of electric field to pixel 5, for the second time-pixel cell 52 and for the third time-pixel cell 53 in these photovalves 8, make that in the first time-pixel cell 51 first particle 83 that seals in the body 81 is driven to the top that seals body 81, second particle 84 then is driven to the bottom that seals body 81; And make the second time-pixel cell 52 with for the third time-first particle 83 that seals in the body 81 in the pixel cell 53 is driven to the bottom that seals body 81, second particle 84 then is driven to the top that seals body 81.Likewise, to different positions, can on this pixel, demonstrate desired color, like green, blueness or black through this first kind of particle 83 of electric field driven and this second kind of particle 84.
Fig. 2 A to 2E is the synoptic diagram of the consecutive steps of the present invention's method of on the photovalve of first preferred embodiment, producing different colours.See also Fig. 2 A and Fig. 2 B, one embodiment of the invention produce different colours on a plurality of photovalves 8 of an electrooptical device method is following.Wherein, Electrooptical device comprises this first electrode 6 and second electrode 7; Define the pixel region 9 that a plurality of arrays are arranged between first electrode 6 and second electrode 7 jointly, the first time-pixel region 91, a second time-pixel region 92 and that each pixel region 9 has a next-door neighbour at least for the third time-pixel region 93.This method comprises the following step: at the first time-pixel region 91 of each pixel region 9, for the second time-and pixel region 92 and for the third time-pixel region 93 forms a plurality of photovalves 8; The physical arrangement of each photovalve 8 can receive the electric field controls that first electrode 6 and second electrode 7 produced and change; And contain by three kinds of photochromic materials without illumination (at this; The number of photochromic material look closely each pixel region 9 this time- pixel region 91,92,93 number and decide) potpourri that evenly mixed; This photochromic material can produce one first color, one second color and one the 3rd color respectively under the illumination of one first predetermined wavelength range, one second predetermined wavelength range and one the 3rd predetermined wavelength range; First predetermined wavelength range, second predetermined wavelength range are different with the 3rd predetermined wavelength range; Therefore, first color, second color are different with the 3rd color; Then, cover this second time-pixel region 92 of this pixel region 9 with this for the third time-this photochromic material in this photovalve 8 in the pixel region 93; And this electrooptical device is exposed under the illumination of this first predetermined wavelength range, make that this photochromic material in this photovalve 8 in this first time-pixel region 91 of this pixel region 9 is produced first kind of color by illumination; Moreover, cover this first time-pixel region 91 with this for the third time-this photochromic material in this photovalve 8 in the pixel region 93; And this electrooptical device is exposed under the illumination of this second predetermined wavelength range, make that this photochromic material in this photovalve 8 in this second time-pixel region 92 is produced second kind of color by illumination; At last, cover this photochromic material in this photovalve 8 in this first time-pixel region 91 and this second time-pixel region 93; And this electrooptical device is exposed under the illumination of the 3rd predetermined wavelength range, make this for the third time-this photochromic material in this photovalve 8 in the pixel region 93 produced the third color by illumination.
See also Fig. 2 A to 2E, the present invention produces different colours on this photovalve 8 of the electrooptical device of first preferred embodiment method is following.At this first time-pixel region 91, for the second time-pixel region 92 and for the third time-pixel region 93 forms these photovalves 8 (like Fig. 2 A and 2B); Wherein, first particle 83 of this photovalve 8 is to contain by three kinds of potpourris that photochromic material mixed without illumination; In addition; The electrooptical device of present embodiment is that the mode with electrophoresis drives first particle 83 and second particle 84 in this photovalve 8 in this first time-pixel region 91; Make it move to the top and bottom that seals body 81 respectively; And drive is waiting second time-pixel region 92 and grade for the third time-first particle 83 and second particle 84 in this photovalve 8 in the pixel region 93; Make it move to this bottom that seals body 81 and top respectively, make this second time-pixel region 92 with this for the third time-first particle 83 in this photovalve 8 in the pixel region 93 covered by second particle 84; Then; With the illumination of first predetermined wavelength range this first time-pixel region 91, this second time-pixel region 92 with this for the third time-this of this photovalve 82 in the pixel region 93 seal the top of body 81, make first particle 83 of this photovalve 8 in this first time-pixel region 91 become first kind of color (like Fig. 5 C) by illumination; In like manner; With the mode of electrophoresis drive this first time-pixel region 91 with this for the third time-first particle 83 and second particle 84 in this photovalve 8 in the pixel region 93; Make it move to bottom and the top that seals body 81 respectively; And first particle 83 and second particle 84 of this photovalve 8 of driving in this second time-pixel region 92; Make it move to the top and bottom that seals body 81 respectively, make this first time-pixel region 91 with this for the third time-first particle 83 of this photovalve 8 in the pixel region 93 covered by second particle 84; Then; With the illumination of second predetermined wavelength range this first time-pixel region 91, this second time-pixel region 92 with this for the third time-in the pixel region 93 this seal the top of body 81, make first particle 83 of this photovalve 8 in this second time-pixel region 92 become second kind of color (like Fig. 2 D) by illumination; In like manner; Drive first particle 83 and second particle 84 of this photovalve 8 in this first time-pixel region 91 and this second time-pixel region 92 with the mode of electrophoresis; Make it move to bottom and the top that seals body 81 respectively; And drive this for the third time-first particle 83 and second particle 84 of this photovalve 8 in the pixel region 93; Make it move to the top and bottom that seals body 81 respectively, make first particle 83 of this photovalve 8 in this first time-pixel region 91 and this second time-pixel region 92 covered by second particle 84; And with the illumination of the 3rd predetermined wavelength range this first time-pixel region 91, this second time-pixel region 92 with this for the third time-in the pixel region 93 this seal the top of body 81, make this for the third time-first particle 83 of this photovalve 8 in the pixel region 93 become the third color (like Fig. 2 E) by illumination.
Fig. 3 is the combination synoptic diagram of second preferred embodiment of electrooptical device of the present invention.See also Fig. 3, second preferred embodiment of electrooptical device of the present invention has and the similar structure of first preferred embodiment, and different is that this Trackpad 4 is folded being located on this second battery lead plate 3.
Fig. 4 is the combination synoptic diagram of the 3rd preferred embodiment of electrooptical device of the present invention.See also Fig. 4; The 3rd preferred embodiment of electrooptical device of the present invention has and the similar structure of first preferred embodiment; Only different is each first time-pixel cell 51 of each pixel 5, for the second time-pixel cell 52 reaches for the third time-fluid 821,822,823 of the photovalve 8 of pixel cell 53 contains this photochromic material; Wherein, The fluid 821 of the photovalve 8 in the first time-pixel cell 51 is to shine through first predetermined wavelength range and have first color; The fluid 822 of the photovalve 8 in the second time-pixel cell 52 is to shine and have second color through second predetermined wavelength range, and for the third time-and the fluid 823 of photovalve 8 in the pixel cell 53 is to shine through the 3rd predetermined wavelength range and have the 3rd color.In addition, present embodiment only comprises the identical a kind of particle 831 of first particle 831 (shown in Figure 1B) with first preferred embodiment.Yet, in another embodiment, also can comprise two kinds of oppositely chargeds and tool different colours, for example black and white particle.Present embodiment is that compared to the advantage of first embodiment fluid and photochromic material can directly make with hybrid mode, and its synthesis mode is comparatively simple, also forms the demonstration of colorize easily.
After the irradiate light of the electrooptical device of present embodiment via different predetermined wavelength ranges, can make each time-fluid 821,822,823 in the pixel cell 51,52,53 has the Presentation Function of different colours each other.In operation; On will a pixel during exhibit red at electrooptical device; As long as apply respectively the first time-pixel cell 51 of electric field to pixel 5, for the second time-pixel cell 52 and for the third time-pixel cell 53 in these photovalves 8; Make this kind particle 831 of the photovalve 8 in the first time-pixel cell 51 be driven to the zone line that seals body 81, and make the second time-pixel cell 52 with for the third time-this kind particle 831 of photovalve 8 in the pixel cell 53 is driven to the bottom that seals body 81.Likewise, to different positions, can on pixel, demonstrate desired color, like green, blueness or black through this kind of electric field driven particle 831.In addition, the fluid 821,822,823 of the photovalve 8 of present embodiment can distinctly comprise photochromic material not of the same race, has different colours after making fluid 821,822,823 irradiate light via different predetermined wavelength ranges; And in other embodiments, each fluid 821,822,823 of the photovalve 8 of present embodiment can comprise a plurality of kinds of photochromic materials, has different colours after making fluid 821,822,823 irradiate light via different predetermined wavelength ranges.
Fig. 5 A to 5C is the synoptic diagram of the consecutive steps of the present invention's method of on the photovalve of the 3rd preferred embodiment, producing different colours.See also Fig. 5 A to 5C, the present invention is following in the method for these photovalve 8 generation different colours of this electrooptical device of the 3rd preferred embodiment.At this first time-pixel region 91, for the second time-pixel region 92 and for the third time-pixel region 93 forms these photovalves 8, wherein, the fluid the 821,822, the 823rd of this photovalve 8 contains by three kinds of potpourris that photochromic material mixed without illumination; The electrooptical device of present embodiment is the particle 831 that drives this photovalve 8 in this first time-pixel region 91 with the mode of electrophoresis; Move it the bottom that seals body 81; And drive this second time-pixel region 92 and this for the third time-particle 831 of this photovalve 8 in the pixel region 93; Move it the top that seals body 81, make this second time-pixel region 92 with this for the third time-fluid 82 of this photovalve 8 in the pixel region 93 covered by particle 831; Then; With the illumination of first predetermined wavelength range this first time-pixel region 91, this second time-pixel region 92 with this for the third time-this of this photovalve 8 in the pixel region 93 seal the top of body 81, make the fluid 821 of this photovalve 8 in this first time-pixel region 91 become first kind of color (like Fig. 5 A) by illumination; In like manner; With the mode of electrophoresis drive this first time-pixel region 91 with this for the third time-particle 831 of this photovalve 8 in the pixel region 93; Move it the top that seals body 81; And drive the particle 831 of this photovalve 8 in this second time-pixel region 92, move it the bottom that seals body 81, make this first time-pixel region 91 and this for the third time-fluid of this photovalve 8 in the pixel region 93 821,823 covered by particle 831; Then; With the illumination of second predetermined wavelength range this first time-pixel region 91, this second time-pixel region 92 with this for the third time-this of this photovalve 8 in the pixel region 93 seal the top of body 81, make the fluid 822 of this photovalve 8 in this second time-pixel region 92 become second kind of color (like Fig. 5 B) by illumination; At last; Drive the particle 831 of this photovalve 8 in this first time-pixel region 91 and this second time-pixel region 92 with the mode of electrophoresis; Move it the top that seals body 81; And drive this for the third time-particle 831 of this photovalve 8 in the pixel region 93, move it the bottom that seals body 81, make the fluid 821,822 of this photovalve 8 in this first time-pixel region 91 and this second time-pixel region 92 covered by particle 831; And in step (G); Be with the illumination of the 3rd predetermined wavelength range this first time-pixel region 91, this second time-pixel region 92 with this for the third time-this of this photovalve 8 in the pixel region 93 seal the top of body 81, make this for the third time-fluid 823 of this photovalve 8 in the pixel region 93 become the third color (like Fig. 5 C) by illumination.
Fig. 6 is the combination synoptic diagram of the 4th preferred embodiment of electrooptical device of the present invention.See also Fig. 6; The 4th preferred embodiment of electrooptical device of the present invention has and the similar structure of the 3rd preferred embodiment; Only different is each first time-pixel cell 51 of each pixel 5, for the second time-pixel cell 52 reaches for the third time-body 811,812,813 that seals of the photovalve 8 of pixel cell 53 contains this photochromic material; Wherein, The body 811 that seals of the photovalve 8 in the first time-pixel cell 51 is to shine through first predetermined wavelength range and have first color; The body 812 that seals of the photovalve 8 in the second time-pixel cell 52 is to shine and have second color through second predetermined wavelength range, and for the third time-and the body 813 that seals of photovalve 8 in the pixel cell 53 shines and has the 3rd color through the 3rd predetermined wavelength range.Present embodiment is to seal the synthetic effect that is similar to colored filter film of body and photochromic material compared to the advantage of first embodiment; Add seal body and particle very near state under; Its reflectivity more is superior to the reflection that structure the had filter that electrooptical device adds colored filter, so the colorize processing procedure of present embodiment is comparatively simplified.In addition, the sealing body 811,812,813 and can distinctly the comprise photochromic material not of the same race of photovalve 8 of present embodiment makes to have different colours after sealing body 811,812,813 irradiate light via different predetermined wavelength ranges; And in other embodiments, each of the photovalve 8 of present embodiment seals body 811,812,813 can comprise a plurality of kinds of photochromic materials, makes to have different colours after sealing body 811,812,813 irradiate light via different predetermined wavelength ranges.
Fig. 7 A to 7C is the synoptic diagram of the consecutive steps of the present invention's method of on the photovalve of the 4th preferred embodiment, producing different colours.See also Fig. 7 A to 7C, the present invention is following in the method for these photovalve 8 generation different colours of this electrooptical device of the 4th preferred embodiment.At this first time-pixel region 91, for the second time-pixel region 92 and for the third time-pixel region 93 forms these photovalves 8; Wherein, this photovalve 8 seal body the 811,812, the 813rd, contain by these three kinds of potpourris that photochromic material mixed without illumination; The electrooptical device of present embodiment is that one first light shield 100 with patterning is arranged on this first electrode base board 2; Making in this photovalve 8 in this first time-pixel region 91 this seal body 811 is not covered by first light shield 100, and this second time-pixel region 92 with this for the third time-this of this photovalve 8 in the pixel region 93 seal body the 812, the 813rd, covered by first light shield 100; Then, on first light shield 100, make this top that seals body 811 of this photovalve 8 in this first time-pixel region 91 become first kind of color (like Fig. 7 A) illumination of first predetermined wavelength range by illumination; In like manner; One second light shield, 200 displacements, first light shield 100 with patterning; Make this first time-pixel region 91 with this for the third time-this of this photovalve 8 in the pixel region 93 seal body the 811, the 813rd, covered by second light shield 200, and this of this photovalve 8 in this second time-pixel region 92 to seal body 812 be not covered by second light shield 200; Then, on second light shield 200, make this top that seals body 812 of this photovalve 8 in this second time-pixel region 92 become second kind of color (like Fig. 7 B) illumination of second predetermined wavelength range by illumination; At last; It is one the 3rd light shield, 300 displacements, second light shield 200 with patterning; Make this of this photovalve 8 in this first time-pixel region 91 and this second time-pixel region 93 seal body the 811, the 812nd, covered by the 3rd light shield 300, and this for the third time-to seal body 813 be not covered by the 3rd light shield 300 for this of this photovalve 8 in the pixel region 91; And with the illumination of the 3rd predetermined wavelength range on the 3rd light shield 300, make this for the third time-this top that seals body 813 of this photovalve 8 in the pixel region 93 is become the third color (like Fig. 7 C) by illumination.
In sum; The foregoing description is through adding photochromic material in this photovalve 8 of electrooptical device; Just through use have the different fixing color photochromic material pixel and utilize the displacement of the particle in this pixel that the element of the photochromic material of the constant color with expectation is shown, change the color of pixel, thereby can produce electrooptical device with colour display functions; For example Electronic Paper or e-book are so can reach the object of the invention really.Also have; Can on display, form colorized optical filtering array through the present invention in the method that produces different colours on the photovalve as colored filter; Striped pattern color optical filtering array for example, mosaic pattern color optical filtering array and Δ-pattern color optical filtering array.
Therefore; The above is merely preferred embodiment of the present invention; Can not limit the scope that the present invention implements with this, the simple equivalent of promptly doing according to claim of the present invention and invention description generally changes and modifies, and all still belongs in the scope that patent of the present invention contains.
Claims (15)
1. photovalve comprises:
One seals body;
One fluid is filled in this and seals in the body; And
A plurality of first particles are scattered in this fluid, and are can receive electric field driven and move in this fluid;
It is characterized in that:
This seal body and this fluid one of them comprise at least a photochromic material, to be suitable for receiving to manifest under the particular light color.
2. photovalve according to claim 1 is characterized in that this photovalve also comprises a plurality of second particles, be scattered in this fluid, and this second particle is different with the color of this first particle.
3. photovalve according to claim 2 is characterized in that this first particle and this second particle oppositely charged.
4. photovalve according to claim 2, one of them that it is characterized in that this first particle and this second particle is electrically charged, and another is neutral.
5. photovalve according to claim 2, the color that it is characterized in that this second particle is a black.
6. photovalve according to claim 1 is characterized in that this seals body is capsule shape.
7. photovalve according to claim 6 is characterized in that this seals body is to be made by urea-formaldehyde materials.
8. photovalve according to claim 1, one of them that it is characterized in that this seals body and this fluid comprises at least two kinds of different photochromic materials, and this photochromic material can produce various colors respectively under the illumination of different predetermined wavelength ranges.
9. electrooptical device comprises:
The pixel that a plurality of arrays are arranged, each pixel comprise at least two times-pixel cells, each time-and pixel cell comprises:
One first electrode;
One second electrode, first electrode is opposed separates with this;
At least one seals body, is located between this first electrode and this second electrode;
One fluid is filled in this and seals in the body; And
A plurality of first particles are scattered in this fluid, and in this fluid, can receive electric field driven and move;
It is characterized in that:
This seal body and this fluid one of them comprise at least a photochromic material, to be suitable for receiving to manifest under the particular light color.
10. electrooptical device according to claim 9; It is characterized in that this electrooptical device comprises one first electrode base board, one second electrode base board and a Trackpad; This first electrode and this second electrode are located at respectively on this first electrode base board and this second electrode base board, and this Trackpad is located on one of them of this first electrode base board and this second electrode base board.
11. an electrooptical device comprises:
The pixel that a plurality of arrays are arranged, each pixel comprises a first time-pixel cell and a second time-pixel cell, each this first time-pixel cell and this second time-pixel cell comprise:
One first electrode;
One second electrode, first electrode is opposed separates with this;
At least one seals body, is located between this first electrode and this second electrode;
One fluid is filled in this and seals in the body; And
At least two kinds of different a plurality of first particles and a plurality of second particle; Be scattered in this fluid; One of them of these two kinds of particles comprises at least two kinds of different photochromic materials, and in this fluid, can receive electric field driven and move, and another kind of particle is lighttight; This photochromic material can produce one first color and one second color respectively under the illumination of one first predetermined wavelength range and one second predetermined wavelength range, this first color is different with this second color;
It is characterized in that:
In this first time-pixel cell this seal this particle in the body this one of them shine and have this first color through this first predetermined wavelength range, and in this second time-pixel cell this seal this particle in the body this one of them shine through this second predetermined wavelength range and have this second color.
12. electrooptical device according to claim 11; It is characterized in that this electrooptical device also comprises one first electrode base board, one second electrode base board and a Trackpad; This first electrode and this second electrode are located at respectively on this first electrode base board and this second electrode base board, and this Trackpad is stacked on one of them of this first electrode base board and this second electrode base board.
13. electrooptical device according to claim 11 is characterized in that this another kind particle is a black, and in this fluid, can receive electric field driven and move.
14. method that on a plurality of photovalves of an electrooptical device, produces different colours; This electrooptical device comprises two electrodes of setting up relatively; One of them of this electrode is transparent; Define a plurality of zones jointly between these two electrodes, each zone has next-door neighbour's a district for the second time, district and for the first time, and this method comprises the following step:
This of each zone distinguish for the first time and should second time a plurality of photovalves of formation in the district, each photovalve contains at least two kinds of photochromic materials;
Cover this photochromic material in the photovalve in this of this zone distinguished for the second time; And
This electrooptical device is exposed under the illumination, makes that this photochromic material in the photovalve in this of this zone distinguished is for the first time produced a color by illumination.
15. method that on a plurality of photovalves of an electrooptical device, produces different colours; This electrooptical device comprises two electrodes of setting up relatively; One of them of this electrode is transparent; Define the pixel region that a plurality of arrays are arranged between these two electrodes jointly, each pixel region has next-door neighbour's a first time-pixel region and a second time-pixel region at least, and this method comprises the following step:
This first time-pixel region and this second time-pixel region at each pixel region form a plurality of photovalves; Each photovalve contains at least two kinds of different photochromic materials; This photochromic material can produce one first color and one second color respectively under the illumination of one first predetermined wavelength range and one second predetermined wavelength range; This first predetermined wavelength range is different from this second predetermined wavelength range, and this first color is different from this second color;
Cover this photochromic material in the photovalve in this second time-pixel region of this pixel region;
This electrooptical device is exposed under the illumination of this first predetermined wavelength range, makes that this photochromic material in the photovalve in this first time-pixel region of this pixel region is produced this first kind of color by illumination;
Cover this photochromic material in the photovalve in this first time-pixel region; And
This electrooptical device is exposed under the illumination of this second predetermined wavelength range, makes that this photochromic material in the photovalve in this second time-pixel region is produced this second kind of color by illumination.
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| CN201010242520.5A CN102346344B (en) | 2010-08-02 | 2010-08-02 | Photoelectric element and device, and method for generating different colors on multiple photoelectric elements |
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| CN201010242520.5A CN102346344B (en) | 2010-08-02 | 2010-08-02 | Photoelectric element and device, and method for generating different colors on multiple photoelectric elements |
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| CN103792687A (en) * | 2014-02-10 | 2014-05-14 | 成都京东方光电科技有限公司 | Colored film substrate and displaying device |
| CN107995347A (en) * | 2017-11-09 | 2018-05-04 | 信利光电股份有限公司 | A kind of cell phone rear cover to change colour with user mood |
| CN110531560A (en) * | 2016-12-09 | 2019-12-03 | 广州奥翼电子科技股份有限公司 | A kind of discoloration electrophoresis particle and preparation method thereof and electrophoretic display device (EPD) |
| WO2020186879A1 (en) * | 2019-03-15 | 2020-09-24 | 广州奥翼电子科技股份有限公司 | Dual-mode electrophoretic display |
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| US6517618B2 (en) * | 2001-05-24 | 2003-02-11 | Xerox Corporation | Photochromic electrophoretic ink display |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103792687A (en) * | 2014-02-10 | 2014-05-14 | 成都京东方光电科技有限公司 | Colored film substrate and displaying device |
| CN103792687B (en) * | 2014-02-10 | 2017-01-18 | 成都京东方光电科技有限公司 | Colored film substrate and displaying device |
| CN110531560A (en) * | 2016-12-09 | 2019-12-03 | 广州奥翼电子科技股份有限公司 | A kind of discoloration electrophoresis particle and preparation method thereof and electrophoretic display device (EPD) |
| CN107995347A (en) * | 2017-11-09 | 2018-05-04 | 信利光电股份有限公司 | A kind of cell phone rear cover to change colour with user mood |
| CN107995347B (en) * | 2017-11-09 | 2020-01-24 | 信利光电股份有限公司 | Mobile phone rear cover capable of changing color along with mood of user |
| WO2020186879A1 (en) * | 2019-03-15 | 2020-09-24 | 广州奥翼电子科技股份有限公司 | Dual-mode electrophoretic display |
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| CN102346344B (en) | 2015-01-14 |
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Address after: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 1, floor 4, Applicant after: Qunkang Technology (Shenzhen) Co., Ltd. Applicant after: Innolux Display Group Address before: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 1, floor 4, Applicant before: Qunkang Technology (Shenzhen) Co., Ltd. Applicant before: Chimei Optoelectronics Co., Ltd. |
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