CN205563034U - Subtractive mixture electrophoretype display device - Google Patents
Subtractive mixture electrophoretype display device Download PDFInfo
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- CN205563034U CN205563034U CN201620335114.6U CN201620335114U CN205563034U CN 205563034 U CN205563034 U CN 205563034U CN 201620335114 U CN201620335114 U CN 201620335114U CN 205563034 U CN205563034 U CN 205563034U
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Abstract
The utility model discloses a subtractive mixture electrophoretype display device, display device includes: the pel array that has a plurality of pixel, relative first base plate and the second base plate that sets up, at least three NULL formed at first base plate lower surface, demonstration electrode array formed at second base plate upper surface, each show electrode with corresponding each pixel's of constitution of at least three NULL driving electrode, each pixel includes: set up in the show electrode with little glass of layer between the NULL, little cup layer is including at least one little cup structure, have when a plurality of when a little cup structure, a plurality of little cup structures are formed by little wall of cup, arrange in demonstration medium in little cup structure, show that the medium includes electrophoresis liquid and is scattered in charged particle in the electrophoresis liquid, the utility model discloses realize A variety of colors's hi -lite color display, improve refresh rate, guaranteed that the stability of demonstration and the colored of hi -lite reappear.
Description
Technical field
This utility model relates to a kind of electrophoresis type display device, is specially a kind of subtractive colour mixture electrophoretype display dress
Put.
Background technology
Electrophoresis type display device (Electrophoretic Display；EPD) principle is to use to pass through unidirectional current
Field makes the mode of charged pigment particles directed movement to show image.The basic structure of electrophoresis type display device is
Filling display dielectric layer between two electrodes, it is by certain thickness and a certain amount of charged pigment particles and electricity
Swimming liquid composition；For preventing charged particle coagulation, display dielectric layer is divided into substantial amounts of micro-cup shape or microcapsule
Substructure, form micro-cup layer or microcapsule layer.When voltage is applied on two electrodes be formed electric field, grain
Son will move along or against direction of an electric field, until stop motion on electrode of substrate.Due to charged particle and
Electrophoresis liquid has similar density, can rest on a certain position for a long time, and this is electrophoresis type display device
There is the theoretical basis of storage property.
Electrophoresis type display device is widely used in the field of transmission text information, such as e-book or electricity
Sub-newspaper publication, is the display performance display device closest to paper property；Electrophoresis type display device has
Display content storage property, even if not powered display content does not disappears.The particle of electrophoresis type display device has
Scattering properties is the KPT Scatter of different colours during display image or absorbs ambient light, with the spy of paper printing ink
Property is identical.Compared with reflection-type liquid-crystal display device, the electrophoresis type display device of corpuscular type is easily to realize height
One of display device of reflectance.Although electrophoresis type display device possesses advantage and the high reflectance of above-mentioned class paper,
But owing to the picture of high-quality colour is difficult to realize, limit the extensive application of electrophoresis type display device.Existing
Have in technology, by electrophoretype display medium make colored filter film, and by adhesion coating by
Pseudo-colour filtering thin film is fixed on electrophoretype display medium；Now, the color of electrophoresis type display device presents and is
After utilizing ambient light to pass through color filter film, the white charged particles in electrophoresis liquid by after reflected ambient light, then
Penetrate colored filter film to carry out color rendering and show.This colour picture implementation has colorized optical filtering
The problem that the color reproduction efficiency of film is low so that electrophoresis type display device shows at light color saturation and brightness
On be affected.It addition, use the particle of multiple color, it is also possible to realize colour display, but exist many
Plant the unmanageable problem of mobility of charged pigment particles.Electrophoretic velocity can along with the kind of charged particle,
Particle diameter and concentration, the power of extra electric field, distribution and direction, and the kind etc. of electrophoresis liquid (electrophoresis liquid)
Factor and have different behaviors, therefore the running orbit of particle is difficult to control to, it is achieved stable colored display dress
Put and be extremely difficult to.In sum, it is achieved the electrophoretype colour with good color saturation and brightness shows
Many technical problems are also had to need to overcome.
Summary of the invention
This utility model is for the proposition of problem above, and develops a kind of subtractive colour mixture electrophoresis type display device.
Technological means of the present utility model is as follows:
A kind of subtractive colour mixture electrophoresis type display device, including:
There is the pel array of multiple pixel cell；
The first substrate being oppositely arranged and second substrate；
It is formed at least three public electrode of described first substrate lower surface；
It is formed at the show electrode array of described second substrate upper surface；Described show electrode array has multiple
Show electrode；Each show electrode and described at least three public electrode constitute the driving electricity of each pixel cell accordingly
Pole；
Each described pixel cell includes:
The micro-cup layer being arranged between described show electrode and described public electrode；Described micro-cup layer includes at least
One micro-cup structure；When micro-cup structure has multiple, multiple micro-cup structures are formed by micro-cup wall；
It is placed in the display medium in described micro-cup structure；Described display medium includes electrophoresis liquid and is scattered in described
Charged particle in electrophoresis liquid；Electric field all can be formed between described show electrode and different public electrodes,
Described charged particle moves in electrophoresis liquid according to direction of an electric field；Described charged particle at least includes 4 kinds；
Further, when charged particle has 4 kinds, including a kind of charged white particles and three kinds of charged pigment
Particle；
Further, three kinds of charged pigment particles include charged cyan particles, charged magenta particle and charged
Yellow particles；
Further, the volume of described micro-cup structure is less than 107μm3；The length direction of described micro-cup structure hangs down
Straight in the length direction of described public electrode；The length of described micro-cup structure, with each public electrode width and
Between difference less than 50 μm；
Further, between each show electrode from different public electrodes, formation has different directions and intensity respectively
Electric field；
Further, described second substrate upper surface is additionally provided with the TFT that multiple and each show electrode is connected respectively
Driver element；The axis direction of each public electrode all goes between with the gate electrode of described TFT driver element or source is electric
The direction of pole lead-in wire is consistent；
Described micro-cup layer is directly contacted with described show electrode, public electrode or is isolated by insulation film；
The length of described show electrode or width, with each public electrode width and between difference less than 50 μm；
Described public electrode is rectangle, or is provided with symmetrically on the neighboring edge of different public electrode
Irregular structure；Described irregular structure has multiple inner fovea part and multiple male part；
Each public electrode is transferred to be formed on each transfer electrode of described second substrate upper surface respectively；
Further,
When each public electrode is all covered by the charged white particles in a certain pixel cell each micro-cup structure
Time, this pixel cell forms white；
When each public electrode is all covered by the charged cyan particles in a certain pixel cell each micro-cup structure
Time, this pixel cell forms cyan；
When each public electrode is all covered by the charged magenta particle in a certain pixel cell each micro-cup structure
Time, this pixel cell forms magenta；
When each public electrode is all covered by the charged yellow particles in a certain pixel cell each micro-cup structure
Time, this pixel cell forms yellow；
Further, when the quantity of described public electrode is 3, the respectively first electrode, the second electrode
With the 3rd electrode；
When the charged cyan particles in a certain pixel cell each micro-cup structure covers its of 3 described public electrodes
In one, when charged magenta particle and charged yellow particles are covered each by two other public electrode, this picture
Element unit forms black；
The area of the public electrode that the light transmittance of the charged cyan particles in each micro-cup structure covers with it long-pending,
The long-pending and charged yellow particles of area of the public electrode that the light transmittance of charged magenta particle covers with it
The area of public electrode that covers with it of light transmittance long-pending the most equal；
When the charged cyan particles in a certain pixel cell each micro-cup structure, charged magenta particle and charged Huang
Any two kinds of colored particle, when being covered each by different public electrode from charged white particles, then this pixel cell
It is correspondingly formed redness, green or blue；
When the charged white particles in a certain pixel cell each micro-cup structure, charged cyan particles, charged magenta
When any the two or three of colored particle and charged yellow particles is covered each by different public electrode, then this pixel
Unit is correspondingly formed multiple different colours；
For at least two pixel cell, by the charged cyan particles included by different pixels unit, charged
Any two kinds when being covered each by different public electrode of magenta particle and charged yellow particles, described at least two
Individual pixel cell is correspondingly formed redness, green or blue.
Owing to have employed technique scheme, a kind of subtractive colour mixture electrophoretype display dress that this utility model provides
Put, moved by the charged particle between corresponding three public electrodes of a show electrode so that a pixel
Minimum number of charged particles can be used in unitary space, reduce particle concentration, it is achieved the height of multiple color
Brightness color shows, improves refresh rate.This utility model at least three in single pixel cell is public
On electrode, at least 4 kinds of abundant colour mixtures of charged pigment particles, it is ensured that the stability of display and the coloured silk of high brightness
Color reproduction.
Accompanying drawing explanation
Fig. 1 is the schematic diagram by different level of electrophoresis type display device described in the utility model；
Fig. 2 is the schematic top plan view of electrophoretic display apparatus described in the utility model；
Fig. 3, Fig. 4 and Fig. 5 are the generalized sections of micro-cup structure described in the utility model；
Fig. 6 is the marginal texture exemplary plot of public electrode described in the utility model.
In figure: 1, first substrate, 2, second substrate, 3, show electrode, the 4, first electrode, 5, second
Electrode, the 6, the 3rd electrode, 7, micro-cup structure, 8, micro-cup wall, 9, electrophoresis liquid, the 10, first transfer electricity
Pole, the 11, second transfer electrode, the 12, the 3rd transfer electrode, 13, TFT driver element, 14, gate electrode
Lead-in wire, 15, source electrode lead-in wire, 16, insulation film, 17, fluid sealant.
Detailed description of the invention
As shown in Figure 1, Figure 2, a kind of subtractive colour mixture electrophoretype display dress shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6
Put, including: there is the pel array of multiple pixel cell；The first substrate 1 being oppositely arranged and second substrate 2；
It is formed at least three public electrode of described first substrate 1 lower surface；It is formed on described second substrate 2
The show electrode array on surface；Described show electrode array has multiple show electrode 3；Each show electrode 3 He
Described at least three public electrode constitutes the drive electrode of each pixel cell accordingly；Each described pixel cell bag
Include: be arranged at the micro-cup layer between described show electrode 3 and described public electrode；Described micro-cup layer include to
A few micro-cup structure 7；When micro-cup structure 7 has multiple, multiple micro-cup structures 7 are formed by micro-cup wall 8；
It is placed in the display medium in described micro-cup structure 7；Described display medium includes electrophoresis liquid 9 and is scattered in described
Charged particle in electrophoresis liquid 9；Electricity all can be formed between described show electrode 3 and different public electrodes
, described charged particle moves in electrophoresis liquid 9 according to direction of an electric field；Described charged particle at least includes 4
Kind；Further, when charged particle has 4 kinds, including a kind of charged white particles and three kinds of charged pigment
Particle；Further, three kinds of charged pigment particles include charged cyan particles, charged magenta particle and band
Electricity yellow particles；Further, the volume of described micro-cup structure 7 is less than 107μm3；Described micro-cup structure 7
Length direction be perpendicular to the length direction of described public electrode；The length of described micro-cup structure 7, Tong Gegong
The width of common electrode and between difference less than 50 μm；Further, each show electrode 3 and different public electrodes
Between formed respectively there is the electric field of different directions and intensity；Further, described second substrate 2 upper surface
It is additionally provided with the TFT driver element 13 that multiple and each show electrode 3 is connected respectively；The axis of each public electrode
Direction is all consistent with the direction of the gate electrode of described TFT driver element 13 lead-in wire 14 or source electrode lead-in wire 15；
Described micro-cup layer is directly contacted with described show electrode 3, public electrode or is isolated by insulation film 16；Institute
State length or the width of show electrode 3, with each public electrode width and between difference less than 50 μm；Described
Public electrode is rectangle, or is provided with symmetrical irregular on the neighboring edge of different public electrode
Structure；Described irregular structure has multiple inner fovea part and multiple male part；Each public electrode is transferred to respectively
It is formed on each transfer electrode of described second substrate 2 upper surface；Further, each when a certain pixel cell
When each public electrode is all covered by the charged white particles in micro-cup structure 7, this pixel cell is formed white
Color；When each public electrode is all covered by the charged cyan particles in a certain pixel cell each micro-cup structure 7
Time, this pixel cell forms cyan；Charged magenta particle in a certain pixel cell each micro-cup structure 7
When all covering each public electrode, this pixel cell forms magenta；When each micro-cup of a certain pixel cell
When each public electrode is all covered by the charged yellow particles in structure 7, this pixel cell forms yellow；
Further, when the quantity of described public electrode is 3, respectively first electrode the 4, second electrode 5 and
3rd electrode 6；When the charged cyan particles covering 3 in a certain pixel cell each micro-cup structure 7 is described public
One of them of electrode, charged magenta particle and charged yellow particles are covered each by two other public electrode
Time, this pixel cell forms black；The light transmittance of the charged cyan particles in each micro-cup structure 7 covers with it
The area of public electrode that covers with it of long-pending, the light transmittance of charged magenta particle of the area of public electrode
Amassing of the area of the public electrode that the light transmittance of long-pending and charged yellow particles covers with it is the most equal；When
Charged cyan particles in a certain pixel cell each micro-cup structure 7, charged magenta particle and charged yellow grain
Any two kinds of son, when being covered each by different public electrode from charged white particles, then this pixel cell is corresponding
Formed red, green or blue；When the charged white particles in a certain pixel cell each micro-cup structure 7, band
Any the two or three of electricity cyan particles, charged magenta particle and charged yellow particles is covered each by difference
During public electrode, then this pixel cell is correspondingly formed multiple different colours；For at least two pixel cell,
By the charged cyan particles included by different pixels unit, charged magenta particle and charged yellow particles
Any two kinds when being covered each by different public electrode, described at least two pixel cell is correspondingly formed redness, green
Color or blueness.
The space constituted between micro-cup structure 7 described in the utility model and first substrate 1, second substrate 2 can
Ensure the not coagulation of described charged particle；When electrophoresis liquid 9 is 107μm3After moving freely in above space, long
Time placement can occur the phenomenon of charged particle coagulation；Based on this reason, when pixel cell is excessive,
Making the micro-cup structure 7 included by this pixel cell is multiple multiple micro-cup structures 7 being parallel to each other, each micro-cup
The length direction of structure 7 is perpendicular to the length direction of described public electrode；The length of described micro-cup structure 7,
With each public electrode width and between difference less than 50 μm, neither affect charged particle and move freely, again can
Prevent agglutination phenomenon from occurring.
Formed respectively between this utility model show electrode 3 from different public electrodes and there is different directions and intensity
Electric field；When the quantity of the public electrode of a certain pixel cell is 3, show electrode 3 and the first electrode 4
Between, between show electrode 3 and the second electrode 5 and between show electrode 3 and the 3rd electrode 6 respectively
Form the electric field with different directions and intensity；Every pair of electrode can form both positive and negative electric field, every kind of polarity
Electric field can have again different electric field intensity, electrophoresis type display device the most described in the utility model can set
Put multiple electric field environment to drive particle to move；The brightness of charged particle and its micro-cup structure 7 upper end, place
The area of public electrode is inversely proportional to, to realize fully and the subtractive colour mixture of equilibrium.
This utility model in a pixel cell, the area of the area of show electrode 3 and each public electrode and
Equal or close；The area of different public electrodes can equal can also be unequal；The shape of described public electrode
Shape can be rectangle, and the neighboring edge of different public electrodes is provided with symmetrical irregular structure；Described
Irregular structure has multiple inner fovea part and multiple male part, the semicircle such as zigzag, being spaced or square
Shape etc.；Described electrophoresis type display device also includes being placed in the close of first substrate 1 and second substrate 2 marginal position
Sealing 17, described fluid sealant 17 is for sealing first substrate 1 and second substrate 2；Described common electrical
Extremely transparency electrode, is so attached to the charged particle on public electrode, reflects ambient light, and then
Realize image to show；The transmitance of public electrode is the highest, and the reflectance of display device is the highest；Public electrode can
To be made up of ITO material, PEDOT material, Graphene or nanometer silver wire material etc.；Show electrode 3 is
Prescribed electrode or non-transparent electrode, when being connected with active device, use metal electrode can reduce cost,
Reduce photoetching number of times, and reduce the complexity of production technology；Any one band electrochondria in each micro-cup structure 7
Son all can move freely between show electrode 3 from different public electrodes, specifically, as at show electrode 3
With first between electrode 4, between show electrode 3 and the second electrode 5 and show electrode 3 and the 3rd electricity
Move between pole 6；Each public electrode is transferred to be formed at each transfer of described second substrate 2 upper surface respectively
On electrode；Specifically, the first electrode 4 is transferred to be formed at the first transfer of described second substrate 2 upper surface
On electrode 10, the second electrode 5 is transferred to be formed at the second transfer electrode 11 of described second substrate 2 upper surface
On, the 3rd electrode 6 is transferred to be formed on the 3rd transfer electrode 12 of described second substrate 2 upper surface, this
In can pass through anisotropic conductive film, aeolotropic conductive or be added with the epoxy of metal ball particle
Resin glue transfers, and then realizes micro-electrode and shift between first substrate 1 and second substrate 2；Institute
State between the first electrode 4 and the second transfer electrode the 11, the 3rd transfer electrode 12 by least one insulation film
16 isolation；By at least between described second electrode 5 and the first transfer electrode the 10, the 3rd transfer electrode 12
One insulation film 16 is isolated；Described 3rd electrode 6 and the first transfer electrode 10, second transfer electrode 11
Between isolated by least one insulation film 16；The public electrode of repeated arrangement and transfer electrode, the most just
Friendship is the transfer modes of most convenient；Electrode is transferred when the first transfer electrode 10, second transfers electrode the 11, the 3rd
12 when being respectively positioned on side, viewing area, needs to form insulation film 16, with isolation on two transfer electrodes wherein
The public electrode of these two transfer electrode non-corresponding；Specifically, the first electrode 4 can be extended to outermost,
Realizing being conductively connected by anisotropic conductive film with the first transfer electrode 10, the first electrode 4 crosses over second turn
Print electrode the 11, the 3rd produces cross point when transferring electrode 12, needs isolation to avoid interfering, at second turn
Dielectric film is formed on print electrode the 11, the 3rd transfer electrode 12；Similarly, the second electrode 5 extends to the first electricity
Between the electrode 6 of pole the 4, the 3rd, the second electrode 5 also produces cross point when crossing over the 3rd transfer electrode 12, with
Sample needs isolation to avoid interfering, and forms dielectric film on the 3rd transfer electrode 12；When first transfers electrode
10, when the second transfer electrode the 11, the 3rd transfer electrode 12 lays respectively at both sides, viewing area, need to turn at one
Form dielectric film on print electrode, isolate the public electrode of this transfer electrode non-corresponding, specifically, can be the
One electrode 4 extends to outermost, realizes being conductively connected by anisotropic conductive film with the first transfer electrode 10,
First electrode 4 side is crossed over when the second transfer electrode the 11, the 3rd transfers electrode 12 and is produced a cross point, needs
Isolate and avoid interfering, the second transfer electrode the 11, the 3rd transfer electrode 12 forms dielectric film, separately
Side counter electrode nothing but intersects, and does not produce cross point；When the first transfer electrode 10, second transfer electrode 11,
When 3rd transfer electrode 12 lays respectively at three side, viewing area, the public electrode cabling forming array is complicated, also
Cross point, effect is had to be significantly worse than the situation of one side or bilateral；Fig. 1 shows electrophoresis described in the utility model
The schematic diagram by different level of type display device, wherein I represents public electrode place level, as the first electrode 4, the
Two electrode 5 and the 3rd electrodes 6, II expression micro-cup structure 7, electrophoresis liquid 9 and charged particle place level, III,
IV and V represents transfer electrode, show electrode 3, TFT driver element 13, source electrode lead-in wire 15, Yi Jimen
Contact conductor 14 place level, wherein III represents transfer electrode, and IV represents show electrode 3, and V represents TFT
Driver element 13, source electrode lead-in wire 15 and gate electrode lead-in wire 14；C shown in Fig. 3 and Fig. 4 represents
Cyan, M represent that magenta, Y represent that yellow, W represent white；Arrow shown in Fig. 5 shows for illustrating
Show the direction of an electric field between electrode 3 from different public electrodes.
The electrophoretic velocity of this utility model display medium is relevant with the kind of charged particle and concentration, limited
In space, particle can move between show electrode 3 and public electrode, can improve each particle to aobvious
Show the contribution of reflection, reduce the concentration of particle, improve electrophoretic velocity, improve electrophoresis type display device further
Refresh rate；In the case of multiple pixel cells are black, it is ensured that the charged face of each pixel cell
Putting in order of material particle is identical, to reach last subtractive colour mixture effect；Charged in each micro-cup structure 7
Long-pending, the light transmittance of charged magenta particle of area of the public electrode that the light transmittance of cyan particles covers with it
It is public that the light transmittance of the long-pending and charged yellow particles of area of the public electrode covered with it covers with it
Amassing of the area of electrode is the most equal, forms optimal subtractive colour mixture effect, reaches the display characteristic of black, carry
High display device contrast；
When each public electrode is all covered by the charged white particles in a certain pixel cell each micro-cup structure 7
Time, this pixel cell forms white；Charged cyan particles pair in a certain pixel cell each micro-cup structure 7
When each public electrode all covers, this pixel cell forms cyan；When a certain pixel cell each micro-cup structure 7
In charged magenta particle time each public electrode is all covered, this pixel cell forms magenta；When
When each public electrode is all covered by the charged yellow particles in a certain pixel cell each micro-cup structure 7, should
Pixel cell forms yellow；Above-mentioned each color can cover whole pixel cell, in same concentrations and resolution
Under conditions of rate, color saturation and chroma-luminance realize optimization；
When the charged cyan particles in a certain pixel cell each micro-cup structure 7, charged magenta particle and charged
Any two kinds of yellow particles, when being covered each by different public electrode from charged white particles, then this pixel list
Unit is correspondingly formed redness, green or blue；Red, green and blue gray scale is adjusted by white, it is achieved
More rich color representation；When the charged white particles in a certain pixel cell each micro-cup structure 7, charged green grass or young crops
Colored particle, charged magenta particle with any the two or three of charged yellow particles be covered each by the most public
During electrode, then this pixel cell is correspondingly formed multiple different colours, although having gap with full-color EL display, but
The kind being color is the abundantest；For at least two pixel cell, included by different pixels unit
Any two kinds of charged cyan particles, charged magenta particle and charged yellow particles be covered each by Bu Tong public
During common electrode, described at least two pixel cell is correspondingly formed redness, green or blue, and then can be at two
Or colour mixture between multiple pixel cell, such as CMCMCM or CYCYCY or MYMYMY, wherein C
Represent that cyan, M represent that magenta, Y represent yellow, and then MY forms redness, CY forms green,
CM forms blueness, so can realize higher color saturation and brightness, such as, and wherein CMCMCM
Situation is that the first electrode 4 of one of them pixel cell each micro-cup structure 7 and the second electrode 5 are by charged cyan
Particle is covered, and the 3rd electrode 6 is covered by charged magenta particle, each micro-cup of another one pixel cell
First electrode 4 of structure 7 and the 3rd electrode 6 are covered by charged magenta particle, and the second electrode 5 is carried
Electricity cyan particles is covered.
Electrophoresis type display device described in the utility model and corresponding one an of show electrode 3 of the prior art
Public electrode, or the combination of two or more sub-pixel compares, by a show electrode 3 corresponding three public
Charged particle between electrode moves so that can use minimum charged particle in a pixel cell space
Number, reduces particle concentration, it is achieved the high brightness colour of multiple color shows, improves refresh rate.Wherein,
One active electrode and two public electrodes have limitation in colour mixture mode, three or two active electrodes pair
Answer a passive electrode, show for subtractive colour mixture and need to exchange electrode at upper and lower base plate, the aperture opening ratio of TFT
The serious brightness affecting electrophoresis type display device, it is impossible to obtain the beneficial effects of the utility model.This practicality
On novel at least three public electrode in single pixel cell, at least 4 kinds of charged pigment particles are the most mixed
Color, it is ensured that the stability of display and the color rendering of high brightness.
Electrophoresis type display device described in the utility model is further illustrated below by concrete application example
Displaying principle, structure and resolution for subtractive colour mixture be further illustrated by, skill general for this area
For art personnel, the size of display device, type of substrate and storage electric capacity arrange etc. all multi-Varis with
Change into obvious；Specifically, a subtractive colour mixture electrophoresis type display device, resolution is 200ppi,
The size of pixel cell is 127x127 μm, and micro-cup layer height is 80 μm, opening of TFT driver element 13
Mouth rate is about (67x67+60x120) μm according to 72% design, show electrode 3, and each public electrode is pressed
Design according to homalographic, the most a size of Lx40 μm2, wherein L is the public electrode length in graph area, etc.
Number in pixel cell is multiplied by 127 μm, and the area of each pixel cell is 127x40 μm2；Arrange public
Electrode has 3, the respectively first electrode the 4, second electrode 5 and the 3rd electrode 6, between public electrode between
Away from for 2.3 μm, specifically, the first electrode 4 and the 3rd electrode 6, with the 3rd electrode 6 of adjacent pixels unit
Also it is 2.3 μm with the spacing of the first electrode 4, the like；Each pixel cell is by two micro-cup structures 7
Composition, micro-cup structure 7 is day font, center a size of 127x63.5 μm, shares between adjacent pixel unit
Micro-cup wall 8, display medium is by micro-cup wall 8 upper substrate and insulation resin membrane closure；Electrophoresis liquid 9 and charged particle
Mixed liquor directly contact with public electrode, the first electrode the 4, second electrode 5 and axis side of the 3rd electrode 6
To consistent with the direction of gate electrode lead-in wire 14；Fig. 6 shows the marginal texture exemplary plot of public electrode, specifically
Ground, the neighboring edge of different public electrodes is provided with symmetrical irregular structure；Described irregular structure
There is multiple inner fovea part and multiple male part, zigzag as shown in Figure 6, the sawtooth of single pixel cell
Number can be with flexible design, and the first electrode 4 and the 3rd electrode 6 can have sawtooth in unilateral edge, the second electrode 5
Double-side-edge there is sawtooth, the symmetrical irregular structure arranged by public electrode neighboring edge,
Making Mixed Zone more, color blending effect more equalizes, to reach optimal subtractive colour mixture effect；First electrode 4,
Second electrode 5 and the 3rd electrode 6 use ITO electrode material to make；Show electrode 3 uses aluminum electrode to make；
Transfer electrode is set to bilateral, in the insulating barrier of the 3rd electrode the 6, first electrode 4 and TFT driver element 13
Insulating barrier is identical, can be SiNx or SiO2；Micro-cup layer includes micro-cup wall 8, electrophoresis liquid 9 and charged particle,
Each micro-cup structure 7 has a kind of charged white particles, charged cyan particles, charged magenta particle and
Charged yellow particles；Above-mentioned application example utilizes an active matrix driving electrode and more than 3 public electrodes, real
The most at least by cyan (C), magenta (M), the subtractive colour mixture of yellow (Y) colour system, with white band electrochondria
Son realizes colored display together.This utility model provides a kind of low cost, high brightness and high color saturation
Electrophoresis type display device.
The above, only this utility model preferably detailed description of the invention, but protection model of the present utility model
Enclose and be not limited thereto, the technology model that any those familiar with the art discloses at this utility model
In enclosing, according to the technical solution of the utility model and inventive concept thereof in addition equivalent or change, all should contain
Cover within protection domain of the present utility model.
Claims (8)
1. a subtractive colour mixture electrophoresis type display device, it is characterised in that described display device includes:
There is the pel array of multiple pixel cell；
The first substrate being oppositely arranged and second substrate；
It is formed at least three public electrode of described first substrate lower surface；
It is formed at the show electrode array of described second substrate upper surface；Described show electrode array has multiple
Show electrode；Each show electrode and described at least three public electrode constitute the driving electricity of each pixel cell accordingly
Pole；
Each described pixel cell includes:
The micro-cup layer being arranged between described show electrode and described public electrode；Described micro-cup layer includes at least
One micro-cup structure；When micro-cup structure has multiple, multiple micro-cup structures are formed by micro-cup wall；
It is placed in the display medium in described micro-cup structure；Described display medium includes electrophoresis liquid and is scattered in described
Charged particle in electrophoresis liquid；Electric field all can be formed between described show electrode and different public electrodes,
Described charged particle moves in electrophoresis liquid according to direction of an electric field；Described charged particle at least includes 4 kinds.
A kind of subtractive colour mixture electrophoresis type display device the most according to claim 1, it is characterised in that work as band
When charged particle has 4 kinds, including a kind of charged white particles and three kinds of charged pigment particles.
A kind of subtractive colour mixture electrophoresis type display device the most according to claim 2, it is characterised in that three kinds
Charged pigment particles includes charged cyan particles, charged magenta particle and charged yellow particles.
A kind of subtractive colour mixture electrophoresis type display device the most according to claim 1, it is characterised in that described
The volume of micro-cup structure is less than 107μm3；The length direction of described micro-cup structure is perpendicular to described public electrode
Length direction；The length of described micro-cup structure, with each public electrode width and between difference less than 50 μm.
A kind of subtractive colour mixture electrophoresis type display device the most according to claim 1, it is characterised in that each aobvious
Show and between electrode from different public electrodes, form the electric field with different directions and intensity respectively.
A kind of subtractive colour mixture electrophoresis type display device the most according to claim 1, it is characterised in that described
Second substrate upper surface is additionally provided with the TFT driver element that multiple and each show electrode is connected respectively；Each public
The axis direction of electrode all goes between with the gate electrode of described TFT driver element or the direction one of source electrode lead-in wire
Cause；
Described micro-cup layer is directly contacted with described show electrode, public electrode or is isolated by insulation film；
The length of described show electrode or width, with each public electrode width and between difference less than 50 μm；
Described public electrode is rectangle, or is provided with symmetrically on the neighboring edge of different public electrode
Irregular structure；Described irregular structure has multiple inner fovea part and multiple male part；
Each public electrode is transferred to be formed on each transfer electrode of described second substrate upper surface respectively.
A kind of subtractive colour mixture electrophoresis type display device the most according to claim 3, it is characterised in that
When each public electrode is all covered by the charged white particles in a certain pixel cell each micro-cup structure
Time, this pixel cell forms white；
When each public electrode is all covered by the charged cyan particles in a certain pixel cell each micro-cup structure
Time, this pixel cell forms cyan；
When each public electrode is all covered by the charged magenta particle in a certain pixel cell each micro-cup structure
Time, this pixel cell forms magenta；
When each public electrode is all covered by the charged yellow particles in a certain pixel cell each micro-cup structure
Time, this pixel cell forms yellow.
A kind of subtractive colour mixture electrophoresis type display device the most according to claim 3, it is characterised in that work as institute
State the quantity of public electrode when being 3, the respectively first electrode, the second electrode and the 3rd electrode；
When the charged cyan particles in a certain pixel cell each micro-cup structure covers its of 3 described public electrodes
In one, when charged magenta particle and charged yellow particles are covered each by two other public electrode, this picture
Element unit forms black；
The area of the public electrode that the light transmittance of the charged cyan particles in each micro-cup structure covers with it long-pending,
The long-pending and charged yellow particles of area of the public electrode that the light transmittance of charged magenta particle covers with it
The area of public electrode that covers with it of light transmittance long-pending the most equal；
When the charged cyan particles in a certain pixel cell each micro-cup structure, charged magenta particle and charged Huang
Any two kinds of colored particle, when being covered each by different public electrode from charged white particles, then this pixel cell
It is correspondingly formed redness, green or blue；
When the charged white particles in a certain pixel cell each micro-cup structure, charged cyan particles, charged magenta
When any the two or three of colored particle and charged yellow particles is covered each by different public electrode, then this pixel
Unit is correspondingly formed multiple different colours；
For at least two pixel cell, by the charged cyan particles included by different pixels unit, charged
Any two kinds when being covered each by different public electrode of magenta particle and charged yellow particles, described at least two
Individual pixel cell is correspondingly formed redness, green or blue.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620335114.6U CN205563034U (en) | 2016-04-20 | 2016-04-20 | Subtractive mixture electrophoretype display device |
| PCT/CN2016/108988 WO2017181694A1 (en) | 2016-04-20 | 2016-12-08 | Subtractive color mixing electrophoresis type display device and manufacturing method thereof |
| KR1020187033322A KR102088385B1 (en) | 2016-04-20 | 2016-12-08 | Subtractive mixed color electrophoretic display device and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620335114.6U CN205563034U (en) | 2016-04-20 | 2016-04-20 | Subtractive mixture electrophoretype display device |
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| Publication Number | Publication Date |
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| CN205563034U true CN205563034U (en) | 2016-09-07 |
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| CN201620335114.6U Active CN205563034U (en) | 2016-04-20 | 2016-04-20 | Subtractive mixture electrophoretype display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785686A (en) * | 2016-04-20 | 2016-07-20 | 大连东方科脉电子股份有限公司 | Subtractive color mixture electrophoretype type display device and manufacturing method thereof |
| CN107065375A (en) * | 2017-04-28 | 2017-08-18 | 大连龙宁科技有限公司 | One species diversity electric charge technicolo electrophoretic display device |
| WO2017181694A1 (en) * | 2016-04-20 | 2017-10-26 | 大连东方科脉电子股份有限公司 | Subtractive color mixing electrophoresis type display device and manufacturing method thereof |
-
2016
- 2016-04-20 CN CN201620335114.6U patent/CN205563034U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785686A (en) * | 2016-04-20 | 2016-07-20 | 大连东方科脉电子股份有限公司 | Subtractive color mixture electrophoretype type display device and manufacturing method thereof |
| WO2017181694A1 (en) * | 2016-04-20 | 2017-10-26 | 大连东方科脉电子股份有限公司 | Subtractive color mixing electrophoresis type display device and manufacturing method thereof |
| CN107065375A (en) * | 2017-04-28 | 2017-08-18 | 大连龙宁科技有限公司 | One species diversity electric charge technicolo electrophoretic display device |
| CN107065375B (en) * | 2017-04-28 | 2024-03-12 | 大连龙宁科技有限公司 | Differential charge color electrophoresis type display device |
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Address after: 314100 room 130, building 2, No. 16, Fuxing Avenue, Xitang Town, Jiashan County, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Dongfang Kemai Electronics Co.,Ltd. Address before: 116000 No. 20, Liaohe East Road, shuangd port, Jinzhou new area, Dalian, Liaoning Patentee before: DALIAN DONGFANGKEMAI ELECTRONIC Co.,Ltd. |