Invention content
In view of the deficiencies of the prior art, present invention aims at provide a kind of preferable chromatic display of display effect.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of chromatic display comprising drive circuit board,Display layer, public electrode and multiple colored filters, the drive circuit board, display layer, public electrode stacking connection are described aobviousShow that layer is set between the drive circuit board and public electrode, there are multiple sub-pixel points on the chromatic display,Middle part molecule pixel or whole sub-pixel points are color sub-pixel point, are provided on the drive circuit board multiple and described moreA one-to-one pixel electrode of sub- pixel, the multiple colored filter are set to the viewing side of the display layer, andAlong the direction arrangement for being parallel to the display layer upper surface, one or more colored filters are both provided on each color sub-pixel pointMating plate, the area of the colored filter are less than the area of corresponding color sub-pixel point.
As being further improved for above-described embodiment, the color of the colored filter of adjacent color sub-pixel point is different.
As being further improved for above-described embodiment, on the direction for being parallel to the display layer upper surface, adjacent colorThere is gap, the display layer to expose from the gap between the colored filter between optical filter.
As being further improved for above-described embodiment, each color sub-pixel point is provided with the identical colour of 2-9 colorOptical filter.
As being further improved for above-described embodiment, each color sub-pixel point includes four rectangles in matrix form distributionColored filter, and the gap between four rectangle colored filters forms cross.
As being further improved for above-described embodiment, the area of the colored filter of each color sub-pixel point with it is described everyThe area ratio of a color sub-pixel point is 0.13-0.9:1, it is therefore preferable to 0.3-0.8:1.
As being further improved for above-described embodiment, each color sub-pixel point includes multiple rectangle colored filters,It is parallel on the direction of the display layer upper surface, there is gap between adjacent color optical filter, each color sub-pixel pointThe ratio between length of side of gap width and the colored filter between adjacent two colored filter is 0.1-0.6:1, it is therefore preferable to0.2-0.3:1；Or
Each color sub-pixel point includes a rectangle colored filter, the gap width between adjacent two colored filterIt is 0.05-1.75 with the ratio between the length of side of the colored filter:1, it is therefore preferable to 0.2-0.6:1.
As being further improved for above-described embodiment, the chromatic display includes a filter sheet base plate, the coloured silkAll colored filters of color display device are set on the filter sheet base plate；Or
The chromatic display includes multiple filter sheet base plates being stacked, and the colored filter of same color is located atOn same filter sheet base plate.
As being further improved for above-described embodiment, the display layer includes multiple along the aobvious of the display layer cross direction profilesShow micro unit, each display micro unit includes transparent confinement shell, the electrophoresis liquid that is packaged in the transparent confinement shellAnd it is suspended in multiple electrophoresis particles in the electrophoresis liquid.
As being further improved for above-described embodiment, each display micro unit includes multiple electrically charged white electrophoreticsParticle and it is multiple be in electroneutral black electrophoretic particles；Or
Each display micro unit includes multiple white electrophoretic particles and multiple black electrophoretic particles, and the white is electricSwimming particle and the black electrophoretic particles band charges of different polarity.
As being further improved for above-described embodiment, the public electrode is transparent and is set to the viewing of the display layerSide, the drive circuit board are set to the other side opposite with the viewing side of the display layer, and the colored filter is setIt is placed in the viewing side of the public electrode；Or
The drive circuit board is transparent and is set to the viewing side of the display layer, and the public electrode is set to described aobviousShow that the other side opposite with the viewing side of layer, the colored filter are set to the viewing side of the drive circuit board.
As being further improved for above-described embodiment, the display micro unit is microcapsules, and the display layer further includes solidChange decentralized medium, the multiple microcapsules are distributed in the solidification decentralized medium, the display layer and the public electrode itBetween and/or the display layer and the drive circuit board between connected by adhesive layer, the thickness of the display layer and the glueThe ratio between the thickness of glutinous layer is 1-10:1.
As being further improved for above-described embodiment, the multiple sub-pixel point is distributed in matrix form, multiple sub-pixel pointsMinimum repetitive unit in RGB, RGBG, RGBW or CMYW arrange, wherein R, G, B, C, M, Y, W be respectively red sub-pixel point,Green sub-pixels point, blue subpixels point, cyan sub-pixel point, pinkish red sub-pixels point, yellow sub-pixel point and the sub- picture of whiteThe colored filter is not arranged on white sub-pixels point for vegetarian refreshments.
As being further improved for above-described embodiment, there is multiple pixels, which part on the chromatic displayPixel or whole pixels are color pixel cell, and each pixel includes 2 to 9 adjacent sub-pixel points, each color imagesThe colored filter of same color is both provided on all sub-pixel points corresponding to vegetarian refreshments, the multiple pixel is in matrix formThe minimum repetitive unit of distribution, multiple pixels is arranged in RGB, RGBG, RGBW or CMYW, and wherein R, G, B, C, M, Y, W distinguishFor red pixel point, green pixel point, blue pixel point, cyan pixel point, magenta pixel point, yellow pixel point and white pictureThe colored filter is not arranged on the sub-pixel point corresponding to white pixel point for vegetarian refreshments.
The chromatic display of the embodiment of the present invention, since the area of colored filter is less than corresponding color sub-pixel pointArea so that each color sub-pixel point has part display layer not covered by colored filter, when the color monitorWhen part carries out colored display, it can be more than by the brightness for the display layer that colored filter is covered and be covered by colored filterThe brightness of display layer, therefore compared to the prior art, the chromatic display of the embodiment of the present invention have when colour is shown compared withHigh display brightness, display effect are preferable.
Specific implementation mode
Technical solution of the present invention is described in further detail in the following with reference to the drawings and specific embodiments, so that thisThe technical staff in field can be better understood from the present invention and can be practiced, but illustrated embodiment is not as the limit to the present inventionIt is fixed.
Such as Fig. 1 to Figure 11, the embodiment of the present invention provides a kind of chromatic display comprising drive circuit board 1, display layer2, public electrode 3 and multiple colored filters 4.Drive circuit board 1, display layer 2 and the stacking connection of public electrode 3, display layer 2 are setIt is placed between drive circuit board 1 and public electrode 3, drive circuit board 1 and public electrode 3 are used to apply in the both sides of display layer 2Electric signal makes display layer 2 be shown.Colored filter 4 is set to the viewing side of display layer 2, and edge is parallel to display layer 2The direction of upper surface (viewing side table second) arranges, and chromatic display is made to have color display effect.Have on chromatic displayThere are multiple sub-pixel points 8, which part sub-pixel point 8 or whole sub-pixel points 8 are color sub-pixel point, on drive circuit board 1It is provided with and multiple 8 one-to-one pixel electrodes 11 of sub-pixel point, pixel electrode 11 and the driving on drive circuit board 1Circuit connects.Specifically, each sub-pixel point 8 is by corresponding with pixel electrode 11 on pixel electrode 11, display layer 2Region, the minimum display unit that region corresponding with pixel electrode 11 is constituted on public electrode 3, the size of sub-pixel point 8Hundreds thousand of to tens million of sub- pixels are generally comprised generally between 50-200 microns, on chromatic display.In colourIn display device, can whole sub-pixel points 8 be color sub-pixel point 8, such as red, blue and green can also partsSub-pixel point 8 is white sub-pixels point, and another part sub-pixel point 8 is color sub-pixel point 8.In general, three to four phasesAdjacent sub-pixel point 8 may be constructed a minimum repetitive unit on chromatic display, namely constitute a pixel.
It please refers to Fig.1 to Fig. 6, one or more colored filters 4 is both provided on each color sub-pixel point 8, it is coloredThe area of optical filter 4 is less than the area of corresponding color sub-pixel point 8.Signified area herein, refers to being parallel to display layer 2Area in the plane of upper surface.The area of signified sub-pixel point 8 herein, is removed by the area of the display area on display layer 2With the number of sub-pixel point 8 calculates and obtains.The area of signified colored filter 4 herein, refers to the colour of the color sub-pixel point 8The gross area shared by optical filter 4.When on color sub-pixel point 8 setting there are one colored filter 4 when, the face of colored filter 4Product is the area of this colored filter 4；When being provided with multiple colored filters 4 on color sub-pixel point 8, colorized optical filteringThe area of piece 4 is the sum of the area of this multiple colored filter 4.The shape of colored filter 4 can be rectangle, triangle,The shapes such as hexagon, circle.The colored color by its corresponding colored filter 4 that each color sub-pixel point 8 can be shownIt is determined.Since the area of the colored filter 4 on each color sub-pixel point 8 is less than the face of corresponding color sub-pixel point 8Product namely colored filter 4 are only part covering color sub-pixel points 8 so that each color sub-pixel point 8 has part to showThe region that layer 2 is never covered by colored filter 4 is exposed, therefore when display layer 2 is displayed in white, can make the sub- picture of the colourThe display brightness of vegetarian refreshments 8 is higher, and thicker by the way that the filter of colored filter 4 to be made to, then the colour can be made subThe color saturation of pixel 8 is higher, to keep the color display effect of the chromatic display preferable.Referring to FIG. 3, forAchromatic sub-pixel point 8, such as white sub-pixels point 8, viewing side can then be not provided with colored filter 4.
It please refers to Fig.3, Fig. 4, Fig. 8 to Figure 10, in a preferred embodiment, the colored filter 4 of adjacent color sub-pixel point 8Color it is different.It is distributed for example, each sub-pixel point 8 can be in matrix form, forms multiple rectangle block arrays, minimum repetitive unitIt arranges in RGB, RGBG, RGBW or CMYW, wherein R, G, B, C, M, Y, W are respectively red sub-pixel point, green sub-pixels point, indigo plantSub-pixels point, cyan sub-pixel point, pinkish red sub-pixels point, yellow sub-pixel point and white sub-pixels point, each sub- picture of colourColour is not arranged on white sub-pixels point for the solid colour of the color of colored filter 4 on vegetarian refreshments and each color sub-pixel pointOptical filter 4.RGB arrangement modes are as shown in figure 9, i.e. three R, G, B sub-pixel points are arranged in a minimum weight in horizontal or vertical directionMultiple unit, namely a pixel is constituted, the sequence of wherein R, G, B are interchangeable, then on the basis of the minimum repetitive unit, along crossMultiple minimum repetitive units of arranging are repeated to longitudinal.The arrangement mode of RGBG is as shown in figure 8, i.e. four R, G, B, G sub-pixelsThe rectangular arrangement of point forms a minimum repetitive unit, namely constitutes a pixel, and two G sub-pixel points are in diagonal line minuteCloth transversely repeats multiple minimum repetitive units of arranging then on the basis of the minimum repetitive unit with longitudinal.It arranges with RGBGMode is similar, and RGBW arrangements are that the rectangular arrangement of the sub- pixels of R, G, B, W tetra- forms a minimum repetitive unit, R, G, B, WSequence it is interchangeable, as shown in Figure 3 and Figure 4.CMYW arrangements are then that the rectangular arrangement of the sub- pixels of C, M, Y, W tetra- forms one mostThe sequence of small repetitive unit, C, M, Y, W is interchangeable, as shown in Figure 10.
In another preferred embodiment, there is multiple pixels, which part pixel or whole on chromatic displayPixel is color pixel cell, and each pixel includes 2 to 9 adjacent sub-pixel points 8, corresponding to each color pixel cellThe colored filter of same color is both provided on all sub-pixel points 8, multiple pixels are distributed in matrix form, multiple pixelsMinimum repetitive unit in RGB, RGBG, RGBW or CMYW arrange, wherein R, G, B, C, M, Y, W be respectively red pixel point, it is greenColour vegetarian refreshments, blue pixel point, cyan pixel point, magenta pixel point, yellow pixel point and white pixel point, white pixel pointColored filter 4 is not set on corresponding sub-pixel point 8.It, should when each pixel includes two adjacent sub-pixel points 8Two sub- pixels 8 along display layer 2 transversely or longitudinally distribution, when each pixel includes nine adjacent sub-pixel points 8When, this nine adjacent sub-pixel points 8 can be in that endian format is distributed.By taking chromatic display shown in Figure 11 as an example, eachPixel includes the sub-pixel point 8 of four adjacent rectangular distributions, and multiple pixels are distributed in RGBW formulas, each red pixelPoint includes four sub-pixel points 8 for being provided with Red lightscreening plate above, and correspondingly, each green, blue pixel point respectively includeFour are provided with green, blue color filter sub-pixel point 8 above, and white pixel point includes then four and colored filter is not arranged aboveThe sub-pixel point of mating plate 4.The chromatic display of the embodiment can be applied to the scene of less demanding to pixel precision.
It please refers to Fig.3 to Fig. 6, on the direction of upper surface for being parallel to display layer 2, has between adjacent color optical filter 4There are gap, display layer 2 to expose from the gap between colored filter 4.When there are one colorized optical filterings for setting on color sub-pixel point 8When piece 4, there is gap between the colored filter 4 on two neighboring color sub-pixel point 8.It is arranged when on color sub-pixel point 8When there are multiple colored filters 4, also there is gap between the adjacent color optical filter 4 on the color sub-pixel point 8.
In a preferred embodiment, 2-9 colored filter 4 can be set on each color sub-pixel point 8.Please refer to Fig.3,Fig. 5 and Fig. 6, when two colored filters 4 are arranged on each color sub-pixel point 8, whens two colored filters 4, can be arranged side by sideSetting, when four colored filters 4 are arranged on each color sub-pixel point 8, four colored filters 4 can be in matrix form pointCloth, when nine colored filters 4 are arranged on each color sub-pixel point 8, nine colored filters 4 can be in endian format pointCloth.Due to being provided with multiple colored filters 4 on each color sub-pixel point 8, and between having between adjacent color optical filter 4Gap, therefore the color that each color sub-pixel point 8 is presented can be made more uniform.
Referring to FIG. 3, each color sub-pixel point 8 includes four rectangle colored filters 4 in matrix form distribution, and fourGap between a rectangle colored filter 4 forms cross.This arrangement mode can make the color of the color sub-pixel point 8All more balanced with Luminance Distribution, display effect is preferable.
In a preferred embodiment, the area of the colored filter 4 of each color sub-pixel point 8 and each color sub-pixel point8 area ratio is 0.13-0.9:1.If the area ratio is too small, the color saturation of chromatic display can be reduced,If the area ratio is too big, the brightness of chromatic display can be reduced.By area ratio control to 0.13-0.9:1, energyEnsure that chromatic display has preferable display effect.Preferably, the face of the colored filter 4 of each color sub-pixel point 8Product and the area ratio of each color sub-pixel point 8 are 0.3-0.8:1.
It please refers to Fig.3, Fig. 5 and Fig. 6, each color sub-pixel point 8 include multiple rectangle colored filters 4, be parallel toOn the direction of the upper surface of display layer 2, there is gap, the length of side (packet of rectangle colored filter 4 between adjacent color optical filter 4Include length of long sides and the broadside length of side) between 40-160 microns, adjacent two colored filter 4 of each color sub-pixel point 8 itBetween the ratio between the length of side of gap width and colored filter 4 be 0.1-0.6：1, it is therefore preferable to 0.2-0.3:1.It needs to illustrateIt is that the length of side of signified colored filter 4 refers to the length of side of two rectangle relative edges corresponding with the gap herein.Namely as schemedShown in 6, each color sub-pixel point 8 includes two spaced rectangle colored filters 4, two rectangle colored filters 4Between spacing w and two rectangle colored filters 4 relative edge length of side d ratio be 0.1-0.6：1.For example, oneA display includes 800*600 sub- pixels 8, and each sub-pixel point 8 is the square of 110 microns of the length of side, then its w value can be withIt it is 10 microns, d values can be correspondingly 100 microns, and w values may be 40 microns, and d values can be correspondingly 70 microns.
Referring to FIG. 4, in another preferred embodiment, each color sub-pixel point 8 includes a rectangle colored filter4, gap width between adjacent two colored filter 4 (namely colored filter 4 on two neighboring color sub-pixel point 8) withThe ratio between length of side of colored filter 4 is 0.05-1.75:1, it is therefore preferable to 0.2-0.6:1.It is equally side with each sub-pixel point 8For long 110 microns of square, the gap width between adjacent two colored filter 4 can be 6 microns, colored filter 4The length of side can be correspondingly gap width between 104 microns or adjacent two colored filter 4 can be 70 microns, it is colorThe length of side of colo(u)r filter 4 can be correspondingly 40 microns.
It please refers to Fig.1 and Fig. 2, in some embodiments, chromatic display includes a filter sheet base plate 41, and colour is aobviousShow that all colored filters 4 of device are set on the filter sheet base plate 41.It specifically, can be by the side such as printing, being depositedFormula makes the light filter film of different colours on same filter sheet base plate 41, to form multiple colored filters 4.Please refer to figure4, in further embodiments, chromatic display includes multiple filter sheet base plates 41 being stacked, the colour of same colorOptical filter 4 is located on same filter sheet base plate 41, and the colored filter 4 on different filter sheet base plates 41 is staggered, will notOverlapping.In other embodiments, each colored filter 4 can also be independent of each other, i.e., does not share same filter sheet base plate 41.
Referring to FIG. 1, in a preferred embodiment, display layer 2 includes multiple display micro units along 2 cross direction profiles of display layer21, it is each to show that micro unit 21 includes transparent confinement shell, the electrophoresis liquid being packaged in transparent confinement shell and is suspended in electrophoresisMultiple coloured electrophoresis particles in liquid.Under the effect of the voltage of pixel electrode 11 and public electrode 3, electrophoresis particle is in electrophoresis liquidMiddle movement, closer or far from pixel electrode 11 and public electrode 3, to form pattern or word.In a preferred embodiment, it showsMicro unit 21 can be microcapsules or micro-cup.The concrete structure of microcapsules can refer to Chinese patent application CN103091926AIn associated description, the structure of micro-cup can refer to the associated description in Chinese patent CN1246730C, and details are not described herein again.WhenWhen showing that micro unit 21 is microcapsules, transparent confinement shell is the cyst wall of microcapsules, transparent when it is micro-cup to show micro unit 21Closure is the interval insulant between micro-cup.In other embodiments, display layer 2 or cholesteric liquid crystal display layer orElectrowetting display layer.
In a further preferred embodiment, each display micro unit 21 include multiple electrically charged white electrophoretic particles andMultiple is in electroneutral black electrophoretic particles, when multiple white electrophoretic particles drive the viewing side to display micro unit 21 by electric signalWhen, which is in color identical with colored filter 4, and when sight of the white electrophoretic particles far from display micro unit 21When seeing side, which is in black.The operation principle of the chromatic display can refer to Chinese patent applicationAssociated description in CN101738814A.It is each to show that micro unit 21 includes multiple white electricity in other preferred embodimentsSwimming particle and multiple black electrophoretic particles, and white electrophoretic particles and the black electrophoretic particles band charges of different polarity, such as white electrophoreticParticle is positively charged, and black electrophoretic particles are negatively charged.When multiple white electrophoretic particles are driven by electric signal to display micro unitWhen 21 viewing side, black electrophoretic particles are then driven to side of the display micro unit 21 far from viewing side, which is inColor identical with colored filter 4, and when white electrophoretic particles are far from the viewing side for showing micro unit 21, black electrophore tic grainViewing side that is sub then being driven to display micro unit 21, the sub-pixel point 8 is in black at this time.
Referring to FIG. 1, public electrode 3 is transparent and is set to the viewing side of display layer 2, drive circuit board 1 is set to displayThe other side opposite with viewing side of layer 2, colored filter 4 are set to the viewing side of public electrode 3.In the present embodiment, publicCommon electrode 3 can be by making one layer of ITO conductive film or graphite on PET, PT or glass substrate with modes such as coating, vapor depositionsAlkene conductive film obtains, and drive circuit board 1 can be by making driving electricity on the glass or plastic basis material with manufacture of semiconductorRoad, pixel electrode 11 and obtain, IC chip etc. can also be set on drive circuit board 1.Public electrode 3 and driving circuitIt can be connected by the plain conductor across display layer 2 between plate 1.It can also be arranged outside the viewing side of colored filter 4 transparentCover sheet 6, filling with sealant 7 between transparency protected cover board 6 and drive circuit board 1, by display layer 2, public electrode 3, colourOptical filter 4 etc. is encapsulated.Referring to FIG. 2, in further embodiments, drive circuit board 1 is transparent and is set to display layer 2Viewing side, public electrode 3 are set to the other side opposite with viewing side of display layer 2, and colored filter 4 is set to driving circuitThe viewing side of plate 1.In this embodiment, drive circuit board 1 can be by using manufacture of semiconductor on glass substrate, pet substrateFormed thin film transistor (TFT) (TFT) circuit and obtain, public electrode 3 can it is transparent can not also be transparent, public electrode 3 and display layer2 outer cladding fluid sealants 7.In other embodiments, when public electrode 3 is set to the viewing side of display layer 2, colored filter 4It can also be set between display layer 2 and public electrode 3.
It please refers to Fig.1 and Fig. 2, in a preferred embodiment, display micro unit 21 is microcapsules, and display layer 2 further includes solidificationDecentralized medium, multiple microcapsules be distributed in solidification decentralized medium in, between display layer 2 and public electrode 3 and/or display layer 2 withIt is connected by adhesive layer 5 between drive circuit board 1, the ratio between the thickness of display layer 2 and the thickness of adhesive layer 5 are 1-10:1.DisplayLayer 2 can have microcapsules, then by electronics by the coating electronic ink on public electrode 3 in electric ink containing multipleInk is dried, and display layer 2 is formed.The ingredient and manufacturing method of electric ink can refer to Chinese patent application CN106292118AIn associated description.Adhesive layer 5 can be by being coated with adhesive on the surface of display layer 2 and being solidified to form.Adhesive layer 5 canWith with certain electric conductivity.If adhesive layer 5 is too thick, public electrode 3 can be reduced and drive circuit board 1 is applied to display layer 2Voltage.When adhesive layer 5 is arranged in the viewing side of display layer 2, adhesive layer 5 is that transparent, too thick adhesive layer 5 influences whetherDisplay layer 2 arrives the translucency on chromatic display surface, to influence the optical characteristics of chromatic display.If adhesive layer 5It is too thin, then it can influence the bonding strength between display layer 2 and public electrode 2 or drive circuit board 1 so that chromatic displayWhen by mechanical shock, it is easily damaged.Therefore it is 1-10 by the control of the ratio between the thickness of display layer 2 and the thickness of adhesive layer 5:1,It can make chromatic display that not only there is preferable electric light display performance, but also there is preferable mechanical strength.In general, it showsThe thickness of layer 2 is between 20 microns -150 microns, and the thickness of adhesive layer 5 is generally between 15 microns -20 microns.
The chromatic display of the embodiment of the present invention, since the area of colored filter is less than corresponding color sub-pixel pointArea so that each color sub-pixel point has part display layer not covered by colored filter, when the color monitorWhen part carries out colored display, it can be more than by the brightness for the display layer that colored filter is covered and be covered by colored filterThe brightness of display layer, therefore compared to the prior art, the chromatic display of the embodiment of the present invention have when colour is shown compared withHigh display brightness, display effect are preferable.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned realityIt applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not depositedIn contradiction, it is all considered to be the range of this specification record.
The several embodiments invented above described embodiment only expresses, the description thereof is more specific and detailed, but notIt can therefore be construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present inventionIt encloses.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.