CN103487932B - Pixel structure - Google Patents
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- CN103487932B CN103487932B CN201310335339.2A CN201310335339A CN103487932B CN 103487932 B CN103487932 B CN 103487932B CN 201310335339 A CN201310335339 A CN 201310335339A CN 103487932 B CN103487932 B CN 103487932B
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Abstract
The invention provides a pixel structure which is provided with a plurality of sub-pixel regions. The pixel structure comprises a first substrate, a second substrate, a color display medium, a black display medium, a light-transmitting display medium and a color filter layer. The color display medium is disposed on the first substrate and includes a first color liquid drop, a second color liquid drop and a third color liquid drop. The first color liquid drop, the second color liquid drop and the third color liquid drop are respectively arranged in different sub-pixel areas. The black display medium is arranged on the second substrate. The light-transmitting display medium is arranged between the color display medium and the black display medium. The color filter layer includes a first color pattern. The first color pattern and the first color liquid drop are positioned in the same sub-pixel area, and the first color pattern and the first color liquid drop have the same color.
Description
Technical field
The present invention relates to a kind of dot structure, particularly relate to a kind of dot structure of display color picture.
Background technology
In current electric moistening display apparatus, be form colored medium at non-polar liquid layer interpolation dyestuff (dye) or pigment (pigment) mostly.But it is also few to belong to nonpolar soluble dye selection at present on the market, and in order to allow colored medium have good absorption coefficient, dye structure must contain particular functional base, the solubleness of dyestuff in non-polar liquid also may be caused to reduce, affect the performance of element color.
In other words, the color saturation of current electric moistening display apparatus is not good.And if the length of travel of selection increase light in color solution improves color representation, then need to increase the non-polar liquid bulk layer thickness in display device, so may affect the driving performance of display device.Therefore, the development of colored electroweting display technique still has many amendatory places.
Summary of the invention
The invention provides a kind of dot structure, effectively can improve the not good problem of color of electric moistening display technique.
Dot structure of the present invention, has multiple subpixel area.Dot structure comprises a first substrate, a second substrate, multiple first partition wall, multiple second partition wall, multiple first pixel electrode, multiple second pixel electrode, a color display medium, a black display medium, a printing opacity display medium and a chromatic filter layer.Second substrate and first substrate are intervally installed.First partition wall is arranged on first substrate and the first partition wall position in the boundary of subpixel area.Second partition wall is arranged on second substrate, and the second partition wall position is in the boundary of subpixel area.First pixel electrode is arranged at first substrate and lays respectively in subpixel area.Second pixel electrode is arranged at second substrate and lays respectively in subpixel area.Color display medium is arranged at first substrate, and color display medium comprises one first look drop, one second look drop and one the 3rd look drop.First look drop, the second look drop and the 3rd look drop are separated by the first partition wall to be arranged at respectively in different subpixel area.Black display medium is arranged at second substrate, and between the second partition wall.Printing opacity display medium is arranged between color display medium and black display medium.Chromatic filter layer is arranged at first substrate and second substrate wherein in one, and chromatic filter layer comprises one first colored pattern.First colored pattern and the first look drop are positioned at an identical subpixel area and the first colored pattern and the first look drop have identical color.
In an embodiment of the present invention, above-mentioned first colored pattern is different from the colour saturation of this first look drop.
In an embodiment of the present invention, the color of above-mentioned first look drop, the second look drop and the 3rd look drop is respectively red, blue and green.
In an embodiment of the present invention, the color of above-mentioned first look drop is green.
In an embodiment of the present invention, above-mentioned chromatic filter layer also comprises one second colored pattern.Second colored pattern and the second look drop are positioned at an identical subpixel area and the second colored pattern and the second look drop have identical color.
In an embodiment of the present invention, above-mentioned chromatic filter layer also comprises a trichromatic diagram case.Trichromatic diagram case and the 3rd look drop are positioned at an identical subpixel area and trichromatic diagram case and the 3rd look drop have identical color.
In an embodiment of the present invention, above-mentioned each subpixel area also comprises an electrodeless portion, and electrodeless portion is positioned between each first pixel electrode and one of them the first partition wall, and between each second pixel electrode and one of them the second partition wall.
In an embodiment of the present invention, above-mentioned black display medium and color display medium are made up of apolar substance, and printing opacity display medium and partition wall are made up of tool polar material.
In an embodiment of the present invention, above-mentioned dot structure also comprises multiple first active member and multiple second active member.First active member drives the first pixel electrode respectively, and the second active member drives the second pixel electrode respectively.When chromatic filter layer is configured at first substrate, chromatic filter layer and the first active member combine.In addition, when chromatic filter layer is configured at second substrate, chromatic filter layer and the second active member combine.
In an embodiment of the present invention, the above-mentioned reflecting electrode that also comprises is arranged on the outside surface of first substrate.
Another kind of dot structure of the present invention, has multiple subpixel area.Dot structure comprises a first substrate, a second substrate, multiple first partition wall, multiple second partition wall, multiple first pixel electrode, multiple second pixel electrode, a color display medium, a black display medium, a printing opacity display medium and a chromatic filter layer.Second substrate and first substrate are intervally installed.First partition wall is arranged on first substrate and the first partition wall position in the boundary of subpixel area.Second partition wall is arranged on second substrate, and the second partition wall position is in the boundary of subpixel area.First pixel electrode is arranged at first substrate and lays respectively in subpixel area.Second pixel electrode is arranged at second substrate and lays respectively in subpixel area.Color display medium is arranged at first substrate.Color display medium comprises one first look drop, in a subpixel area disposed therein.Black display medium is arranged at second substrate, and between the second partition wall.Printing opacity display medium is arranged between color display medium and black display medium.Chromatic filter layer is arranged at first substrate and second substrate wherein in one.Chromatic filter layer comprises one first colored pattern, one second colored pattern and a trichromatic diagram case, and it is arranged in different subpixel area respectively.First colored pattern and the first look drop are positioned at an identical subpixel area and the first colored pattern and the first look drop have identical color.
In an embodiment of the present invention, above-mentioned first colored pattern is different from the colour saturation of the first look drop.
In an embodiment of the present invention, the color of above-mentioned first colored pattern, the second colored pattern and trichromatic diagram case is respectively red, blue and green.
In an embodiment of the present invention, the color of above-mentioned first colored pattern is green.
In an embodiment of the present invention, above-mentioned color display medium also comprises one second look drop.Second look drop and the second colored pattern are positioned at an identical subpixel area and the second colored pattern and the second look drop have identical color.
In an embodiment of the present invention, above-mentioned dot structure also comprises a reflecting electrode and is arranged on the outside surface of first substrate.
Based on above-mentioned, in the chromatic filter layer of the embodiment of the present invention, color filter patterns has multiple protrusion pattern and is protruded out in adjacent pixel region by one of them pixel region.So, when chromatic filter layer is applied to display, chromatic filter layer be designed with the color offset phenomenon helping improve display.In addition, the boundary of adjacent two color filter patterns can provide the effect of black matrix and optionally can omit the configuration of black matrix.
For above-mentioned feature and advantage of the present invention can be become apparent, below especially exemplified by embodiment, and appended accompanying drawing is coordinated to be described in detail below.
Accompanying drawing explanation
Figure 1A is the cut-open view of the dot structure 100 illustrated according to an experimental example of the present invention;
Figure 1B is cut-open view when illustrating that the dot structure 100 of Figure 1A applies bias voltage;
Fig. 2 A is the cut-open view of the dot structure 200 illustrated according to another experimental example of the present invention;
Fig. 2 B is cut-open view when illustrating that the dot structure 200 of Fig. 2 A applies bias voltage;
Fig. 3 is the chromatic diagram that CIE1931 is shown;
Fig. 4 illustrates the diagrammatic cross-section of the dot structure of one embodiment of the invention.
Reference numeral
100,200,300: dot structure 101,201: electrodeless portion
102,104,106,202,204,206,302,304,306: subpixel area
110,210: first substrate 112: rete
120,220: second substrate 130: partition wall
140: pixel electrode 150: common electrode
160: coloured display medium 170,270: printing opacity display medium
180,280: chromatic filter layer 182,382: the first colored pattern
184,384: the second colored pattern 186,386: the trichromatic diagram cases
212: the first rete 222: the second retes
232: the first partition wall 234: the second partition walls
242: the first pixel electrode 244: the second pixel electrodes
250: color display medium 260: black display medium
290: black matrix" 392: the first active member
394: the second active members 396: reflecting electrode
398: light source B: blue drop
B, b1, c, g, g1, m, r, r1, y: coordinate points
C: cyan pattern G: green drop
L: display light M: carmetta pattern
R: red drop R100, R200: scope
Y: yellow pattern
Embodiment
Figure 1A is the cut-open view of the dot structure 100 illustrated according to an experimental example of the present invention, and Figure 1B is cut-open view when illustrating that the dot structure 100 of Figure 1A applies bias voltage.Please refer to Figure 1A and 1B, dot structure 100 comprises first substrate 110, second substrate 120, multiple partition wall 130, multiple pixel electrode 140, common electrode 150, multiple coloured display medium 160, printing opacity display medium 170 and a chromatic filter layer 180.In addition, dot structure 100 can have multiple subpixel area 102,104 and 106.
First substrate 110 and second substrate 120 are intervally installed.First substrate 110 is provided with a rete 112, rete 112 is in the face of second substrate 120.Partition wall 130 is arranged on rete 112, and partition wall 130 is between rete 112 and second substrate 120.Specifically, partition wall 130 be arranged at sub-pixel area 102,104 and 106 boundary on dot structure 100 to be divided into multiple subpixel area 102,104 and 106.
Pixel electrode 140 between first substrate 110 and rete 112, and lays respectively in subpixel area 102,104 and 106.In addition, the area of each pixel electrode 140 does not fill up one of them corresponding subpixel area 102,104 or 106, so each subpixel area 102,104 or 106 also comprises an electrodeless portion 101, wherein electrodeless portion 101 is between pixel electrode 140 and partition wall 130.
Coloured display medium 160 is arranged between rete 112 and second substrate 120, and is arranged in each subpixel area 102,104,106 that partition wall 130 separates.Coloured display medium 160 is such as oil droplet that is colored or black.Printing opacity display medium 170 is arranged between rete 112 and second substrate 120.Common electrode 150 is arranged between printing opacity display medium 170 and second substrate 120.First substrate 110 and second substrate 120 can be respectively flexible base plate, glass or active component array base board.
In this experimental example, chromatic filter layer 180 is arranged at first substrate 110, and pixel electrode 140 is arranged between chromatic filter layer 180 and rete 112, but is not limited thereto.Pixel electrode 140 also can be arranged between chromatic filter layer 180 and first substrate 110.In addition, chromatic filter layer 180 also can be arranged at second substrate 120, or is arranged between common electrode 150 and second substrate 120.In addition, chromatic filter layer 180 includes the first colored pattern 182, second colored pattern 184 and trichromatic diagram case 186, and the first colored pattern 182, second colored pattern 184 and trichromatic diagram case 186 lay respectively at subpixel area 102, subpixel area 104 with subpixel area 106.
When the first colored pattern 182, second colored pattern 184 and trichromatic diagram case 186 are respectively red, green and blue, subpixel area 102, subpixel area 104 are respectively red pixel district, green pixel district and blue pixel district with subpixel area 106.But, the color of the first colored pattern 182, second colored pattern 184 and trichromatic diagram case 186 can be other color scheme, and such as green grass or young crops, fuchsin and Huang, must not be limited with three primary colors.
Printing opacity display medium 170 and partition wall 130 are made up of tool polar material, and rete 112 and coloured display medium 160 are made up of apolar substance.When not applying bias voltage to dot structure 100, as shown in Figure 1A, coloured display medium 160 can be laid and be deployed on rete 112.In coloured display medium 160 is black oil droplet when, the light of incident dot structure 100 will be shown dark-state picture by absorbing.In coloured display medium 160 is colored oil droplet when, coloured display medium 160 and chromatic filter layer 180 by the spectral range that has of light not overlapped.Therefore, by the light of the special spectrum scope of coloured display medium 160, can not be able to be penetrated by absorbing at chromatic filter layer 180.Or, by the light of the special spectrum scope of chromatic filter layer 180, also can not be able to be penetrated by absorbing at coloured display medium 160.Whereby, dot structure 100 can present the state of black, namely shows dark-state picture.
As shown in Figure 1B, voltage applied to common electrode 150 and pixel electrode 140 and be tending towards polarity in the electric field formed by making the rete 112 be originally made up of non-polar material between the two.Meanwhile, the rete 112 corresponding to electrodeless portion 101 is less because of the electric field influence being subject to pixel electrode 140, and the phenomenon that the rete 112 corresponding to electrodeless portion 101 is tending towards polarity is more not remarkable.Now, nonpolar coloured display medium 160 is not easily attached to and correspond on the rete 112 of pixel electrode 140, and coloured display medium 160 can be pushed towards electrodeless portion 101 because of increasing with the adsorbability of rete 112 by the printing opacity display medium 170 of polarity.
Therefore, when dot structure 100 is applied in voltage and drives, in the light of dot structure 100, have at least a part can not needed by coloured display medium 160 by chromatic filter layer 180 and printing opacity display medium 170.Thus, by means of only the light of chromatic filter layer 180 and printing opacity display medium 170 by the color of the first colored pattern 182, second colored pattern 184 and trichromatic diagram case 186 that present chromatic filter layer 180.
When wanting to adjust the ratio by means of only the light of chromatic filter layer 180 and printing opacity display medium 170, the bias voltage changing common electrode 150 and pixel electrode 140 can be adopted to realize.For example, in fig. ib, during driving stronger, the coloured display medium 160 in the subpixel area 102 almost total position toward electrodeless portion 101 moves and assembles.In addition, by the adjustment of bias voltage, but some position toward electrodeless portion 101 of the coloured display medium 160 in subpixel area 104 is moved and assembles, and the coloured display medium 160 in subpixel area 106 can have more small part move toward the position in electrodeless portion 101 and assemble.The ratio of assembling toward the position in electrodeless portion 101 by coloured display medium 160 can realize the display effect of different GTG.
Fig. 2 A is the cut-open view of the dot structure 200 illustrated according to another experimental example of the present invention.Please refer to Fig. 2 A, dot structure 200 comprises first substrate 210, second substrate 220, multiple first partition wall 232, multiple second partition wall 234, multiple first pixel electrode 242, multiple second pixel electrode 244, color display medium 250, black display medium 260, printing opacity display medium 270 and chromatic filter layer 280.
First substrate 210 and second substrate 220 are intervally installed.First substrate 210 is provided with one first rete 212.Second substrate 220 is provided with one second rete 222.First rete 212 is in the face of the second rete 222.First partition wall 232 and the second partition wall 234 are all arranged between the first rete 212 and the second rete 222, and wherein the first partition wall 232 is arranged on the first rete 212, and the second partition wall 234 is arranged on the second rete 222.First partition wall 232 and the first partition wall 234 face each other setting.Specifically, dot structure 200 is divided into multiple subpixel area 202,204 and 206 by the first partition wall 232 and the second partition wall 234, and also namely the first partition wall 232 and the second partition wall 234 are positioned at the intersection of subpixel area 202,204 and 206.
First pixel electrode 242 is all between first substrate 210 and the first rete 212, and the second pixel electrode 244 is all between second substrate 220 and the second rete 222.Three the first pixel electrodes 242 lay respectively in subpixel area 202,204 and 206 and three the second pixel electrodes 244 lay respectively in subpixel area 202,204 and 206.Subpixel area 202,204 and 206 also comprises an electrodeless portion 201 separately.Electrodeless portion 201 between the first pixel electrode 242 and the first partition wall 232, and between the second pixel electrode 244 and the second partition wall 234.Wherein, first pixel electrode 242 and the second pixel electrode 244 can be single or multiple lift structure, its material comprises transparent conductive material, such as: indium tin oxide, indium-zinc oxide, aluminium tin-oxide, aluminium zinc oxide, indium gallium zinc oxide or thickness are less than the thin metal material of 50 nanometers, or organic material be mixed with material or other suitable material of above-mentioned at least one.First rete 212 and the second rete 222 can be single or multiple lift structure, and its material comprises inorganic or organic insulation, such as: monox, silicon nitride, silicon oxynitride, metal oxide, metal nitride, metal oxynitride, Parylene (parylene), fluoropolymer or other suitable material.
Color display medium 250 is arranged on the first rete 212, and in subpixel area 202,204 and 206 between the first partition wall 232.Color display medium 250 comprises a red drop R, a green drop G and a blue drop B, and such as: three primary colors, and red drop R, green drop G and blue drop B are arranged in subpixel area 202,204 and 206 respectively.Black display medium 260 is arranged on the second rete 222, and these black drops of black display medium 260 lay respectively in the subpixel area 202,204 and 206 between the second partition wall 234.Printing opacity display medium 270 is arranged at color display medium 250 and black display medium 260 to be separated between the first rete 212 and the second rete 222, and wherein printing opacity display medium 270 is such as clear, colorless, but the present invention is not as limit.First substrate 210 and second substrate 220 may be flexible base plate, glass substrate or active component array base board.
Chromatic filter layer 280 is arranged at first substrate 210, and the first pixel electrode 242 is arranged between chromatic filter layer 280 and the first rete 212, but is not limited thereto.In other embodiments, the first pixel electrode 242 also can be arranged between chromatic filter layer 280 and first substrate 210.In addition, chromatic filter layer 280 also can be arranged on second substrate 220, or is arranged between the second pixel electrode 244 and second substrate 220.Chromatic filter layer 280 comprises a carmetta (Magenta) pattern M, a yellow pattern Y and a cyan (Cyan) pattern C.At this, the chromatic filter layer 280 in same subpixel area 202,204 and 206 and color display medium 250, the wavelength spectral range that can pass through for light overlaps.
For example, carmetta is absorb green and can make the color that the light of other color passes through, therefore carmetta can correspond to the color beyond green.Yellow can make for absorbing blueness the color that the light of other color passes through, therefore the yellow color that can correspond to beyond blueness.Cyan is absorb red and can make the color that the light of other color passes through, therefore cyan can correspond to the color beyond redness.In the present embodiment, the carmetta pattern M of chromatic filter layer 280 corresponds to red drop R, and the yellow pattern Y of chromatic filter layer 280 corresponds to green drop G, and the cyan pattern C of chromatic filter layer 280 corresponds to blue drop B.
In this experimental example, a black matrix" 290 is optionally set on the second rete 222 of second substrate 220, and is arranged in electrodeless portion 201.Setting by means of black matrix" 290 can guarantee that electrodeless portion 201 is rendered as black and does not affect by the color of display medium.In other embodiments, black matrix" 290 can omit and not establish.
Printing opacity display medium 270, first partition wall 232 and the second partition wall 234 are all be made up of tool polar material.First rete 212, second rete 222, black display medium 260 and color display medium 250 are all be made up of apolar substance.Therefore, the first rete 212, second rete 222, black display medium 260 and color display medium 250 all present hydrophobic property.When not applying bias voltage to dot structure 200, the first rete 212 and color display medium 250 because being all hydrophobic property each other, and can making color display medium 250 lay and are deployed on the first rete 212.Second rete 222 and black display medium 260 because being all hydrophobic property each other, and can making black display medium 260 lay and are deployed on the second rete 222.
In this experimental example, when the display state of dot structure 200 will be controlled, the mode similar in appearance to Figure 1B can be adopted to realize.For example, bias voltage can be applied to the first pixel electrode 242 or to the second pixel electrode 244, adjust the distribution of color display medium 250 and black display medium 260.Nearly all visible ray can all absorb by black display medium 260, therefore can adjust the distribution of black display medium 260 to change the penetrate amount of light by dot structure 200 by applying bias voltage to the second pixel electrode 244.Now, each GTG shown by subpixel area 202,204 and 206 can be implemented respectively.
In addition, when change each color shown by subpixel area 202,204 and 206, can realize by applying bias voltage to the first pixel electrode 242 to the distribution adjusting color display medium 250.For example, Fig. 2 B is cut-open view when illustrating that the dot structure 200 of Fig. 2 A applies bias voltage.When dot structure 200 will be made to present carmetta, as shown in Figure 2 B, subpixel area 204 can not be applied in voltage with the first pixel electrode 242 in subpixel area 206 and the second pixel electrode 244, and the first pixel electrode 242 in subpixel area 202 and the second pixel electrode 244 are all applied in voltage.So, the black display medium 260 in subpixel area 202 and red drop R all assemble toward the position in electrodeless portion 201.Therefore, light can only by the carmetta pattern M of chromatic filter layer 280, and make dot structure 200 present carmetta.If when making dot structure 200 present yellow or cyan, also can make in a like fashion, make light by the yellow pattern Y in chromatic filter layer 280 or cyan pattern C.
In addition, when dot structure 200 will be made to present redness, make the black display medium 260 in subpixel area 204 and 206 be deployed in the second rete 222 and make the black display medium 260 in subpixel area 202 be gathered in electrodeless portion 201.Moreover, make the red drop R in subpixel area 202 be deployed in the first rete 212.So, light is by the carmetta pattern M of chromatic filter layer 280 and red drop R.Because carmetta pattern M is by the light beyond green, red drop R is only by red light, therefore only red light, by carmetta pattern M and red drop R, and makes dot structure 200 present red image.Certainly, when the color between carmetta and redness will be adjusted, then the voltage of the first pixel electrode 242 can be adjusted, to change the spread of red drop R.
Fig. 3 is the chromatic diagram that CIE1931 is shown.Please refer to Fig. 3, the dot structure 100 of previous experiments example carrys out the image of display color based on the color of the first colored pattern 182, second colored pattern 184 and trichromatic diagram case 186 in chromatic filter layer 180, and wherein the color of the first colored pattern 182, second colored pattern 184 and trichromatic diagram case 186 such as drops on coordinate points r, g and b respectively in the chromatic diagram of CIE1931.Therefore, the displayable color of dot structure 100 drops in scope R100.Dot structure 200 can present color by color display medium 250 and chromatic filter layer 280, wherein in color display medium 250, the color of colored drop R, G, B such as drops on coordinate points r, g and b respectively, and in chromatic filter layer 280, the color of multicolour pattern C, M, Y such as drops on coordinate points c, m and y respectively.Therefore, the displayable color of dot structure 200 drops in scope R200.In comparison, scope R200 to contain area comparatively large, the therefore displayable color of dot structure 200 more horn of plenty.So the present invention can adopt the design of above-mentioned dot structure 200 as basic concept, colored drop of being arranged in pairs or groups by the multicolour pattern of chromatic filter layer is arranged in identical subpixel area with the color display effect of realizing ideal.Except above experimental example describes, below will further illustrate spirit of the present invention with specific embodiment, but the present invention is not limited with particular content described in the following example.
Fig. 4 is the diagrammatic cross-section of the dot structure that one embodiment of the invention is shown.Please refer to Fig. 4, dot structure 300 is approximately identical to the dot structure 200 of earlier figures 2A, and therefore identical in two figure component indicates with similar symbol, does not separately repeat.Particularly, the setting position and function etc. of first substrate 210, second substrate 220, multiple first partition wall 232, multiple second partition wall 234, multiple first pixel electrode 242, multiple second pixel electrode 244, black display medium 260, printing opacity display medium 270 and black matrix" 290 can with reference to the associated description of Fig. 2 A and Fig. 2 B.The difference of the present embodiment and Fig. 2 A is mainly, the chromatic filter layer 380 of the present embodiment includes the first colored pattern 382, second colored pattern 384 and trichromatic diagram case 386, and the color of the first colored pattern 382, second colored pattern 384 and trichromatic diagram case 386 is such as the color being same as red drop R, green drop G and blue drop B.
According to the description content of above-mentioned Fig. 2 A, the color of red drop R, green drop G and blue drop B is respectively redness in three primary colors, green and blue.Therefore, the first colored pattern 382, second colored pattern 384 and trichromatic diagram case 386 can be redness, green and blue respectively, such as: three primary colors.
In the present embodiment, the first colored pattern 382 is all arranged in subpixel area 302 with red drop R, and the second colored pattern 384 is all arranged in subpixel area 304 with green drop G, and trichromatic diagram case 386 and blue drop B are arranged in subpixel area 308.Simultaneously, first colored pattern 382 is identical in fact with the color density of the color density of red drop R, the second colored pattern 384 is identical in fact with the color density of green drop G, and trichromatic diagram case 386 is identical in fact with the color density of blue drop B, purer/bright-coloured redness, green or blue can be obtained.In other embodiment, first colored pattern 382 is different in essence with the color density of red drop R, second colored pattern 384 is different in essence with the color density of green drop G, and trichromatic diagram case 386 is different in essence with the color density of blue drop B, the redness of larger Color Range, green or blue can be obtained, and still can maintain colour vividness as far as possible.
Because the technical development of chromatic filter layer 380 is more ripe relative to the technical development of color display medium 250.The color of chromatic filter layer 380 can adjust to some extent according to different demands.Therefore, arrange in pairs or groups red drop R, green drop G and blue drop B of the first colored pattern 382, second colored pattern 384 and trichromatic diagram case 386 in chromatic filter layer 380 is utilized can to realize more bright-coloured chromatic image.
For example, please refer to Fig. 3, when in the chromatic filter layer 380 of the present embodiment, the color of each multicolour pattern is shown in the chromatic diagram of CIE1931, the color of the first colored pattern 382 such as drops on coordinate points r1, and the color of the second colored pattern 384 such as drops on coordinate points g1 and the color of trichromatic diagram case 384 such as drops on coordinate points b1.Coordinate points r1 is expressed as redness and color density is different from coordinate points r, and coordinate points point g1 is expressed as green and color density is different from coordinate points g, and coordinate points b1 is expressed as blueness and color density is different from coordinate points b.
As shown in Figure 3, coordinate points r1 relative to coordinate points r closer to red end points, coordinate points g1 relative to coordinate points g closer to green end points, and coordinate points b1 relative to coordinate points b closer to blue end points.Therefore, select such chromatic filter layer 380 and color display medium 250 to carry out display color image and can have more gay colours and show, such as colour saturation can be higher compared with the dot structure 200 of Fig. 2 A.In addition, the image shown by dot structure 300 also can meet the requirement of different display color agreement.
It is worth mentioning that, the present invention does not limit chromatic filter layer 380 needs to have the pattern of three kinds of different colours to color display medium 250 of arranging in pairs or groups.In other embodiments, dot structure 300 can only for wherein a kind of or wherein two kinds of colors arrange in pairs or groups the multicolour pattern of chromatic filter layer 380 to realize required display effect.That is, when color display medium 250 has three kinds of colors, the first colored pattern 382, second colored pattern 384 and trichromatic diagram case 386 only can have one or only have wherein both be arranged in dot structure 300.Or, when chromatic filter layer 380 has three kinds of colors, red drop R, green drop G and blue drop B only can have one or only have wherein both be arranged in dot structure 300.For example, when the color density of green is not enough, the first colored pattern 382, second colored pattern 384 and trichromatic diagram case 386 can selectively only have the second colored pattern 384 to be arranged in dot structure 300.Or red drop R, green drop G and blue drop B can only have green drop G to be arranged in dot structure 300.Certainly, above-mentioned Colour selection is only the use illustrated, and is not used to limit the present invention.
Just as the mode of operation of dot structure 200, dot structure 300 can by applying voltage to control black display medium 260 and the distribution of color display medium 250 in each subpixel area 302,304 and 306 to the first pixel electrode 242 and the second pixel electrode 244, to realize different GTG and different color effects.At this, dot structure 300 also can include multiple first active members 392 and multiple second active member 394, and wherein the first active member 392 is connected to the first pixel electrode 242 respectively, and the second active member 394 is connected to the second pixel electrode 244 respectively.Thus, different driving voltages can by the running of the first active member 392 and the second active member 394 to input to the first pixel electrode 242 and the second pixel electrode 244.
Because the first active member 392 is all arranged on first substrate 210 in the present embodiment with chromatic filter layer 380, first active member 392 and chromatic filter layer 380 can be integrated with one another and form active member (activedeviceoncolorfilterarray on chromatic filter layer, AOC) structure or the chromatic filter layer structure of (colorfilteronarray, COA) on active member.In addition, chromatic filter layer 380 is also optionally configured on second substrate 220.Now, the second active member 394 and chromatic filter layer 380 can be integrated with one another and form the structure of active member on chromatic filter layer or the structure of chromatic filter layer on active member.
In addition, dot structure 300 also can comprise a reflecting electrode 396, and it is arranged on the outside surface of first substrate 210.Therefore, the reflection of reflecting electrode 396 can be subject to show by the light of the incident dot structure 300 of second substrate 220.In addition, the design of actual displayed device also can comprise a light source 398, and it is set to provide display light L towards dot structure 300.For example, light source 398 is arranged at the side of first substrate 210, to make first substrate 210 as photocon.In other embodiment, also comprise a photocon (sign) and be arranged between first substrate 210 and reflecting electrode 396, light guide effect is provided.Therefore, show light L can via the reflection of reflecting electrode 396 incident display medium (including color display medium 250, black display medium 260 and printing opacity display medium 270) to show.If dot structure 300 does not comprise reflecting electrode 396, then light from first substrate 210 or second substrate 220 incidence, and can be used as transparent display.
Above-mentioned light source 398 also can be applied in the dot structure 200 of Fig. 2 A with the design of reflecting electrode 396.Therefore, the dot structure 200 of Fig. 2 A can be applied to penetration display technique with the dot structure 300 of Fig. 4 A and also can be applied to reflective display technique.
In sum, the dot structure of the embodiment of the present invention utilizes the colored drop of chromatic filter layer and color display medium to have same color but variable concentrations generally has the not good shortcoming of color representation with the dot structure improving electric moistening display technique.In addition, the dot structure of the embodiment of the present invention can be selected to arrange multicolour pattern and colored drop to show desirable color to specific color simultaneously.
Claims (18)
1. a dot structure, is characterized in that, has multiple subpixel area, and this dot structure comprises:
One first substrate;
One second substrate, is intervally installed with this first substrate;
Multiple first partition wall, is arranged on this first substrate, and those the first partition wall positions are in the boundary of those subpixel area;
Multiple second partition wall, is arranged on this second substrate, and those the second partition wall positions are in the boundary of those subpixel area;
Multiple first pixel electrode, is arranged at this first substrate and lays respectively in those subpixel area;
Multiple second pixel electrode, is arranged at this second substrate and lays respectively in those subpixel area;
One color display medium, is arranged at this first substrate, and this color display medium comprises one first look drop, one second look drop and one the 3rd look drop, separates by those first partition walls to be arranged in those different subpixel area respectively;
One black display medium, is arranged at this second substrate, and between those second partition walls;
One printing opacity display medium, is arranged between this color display medium and this black display medium; And
One chromatic filter layer, be arranged at this first substrate and this second substrate wherein in one, this chromatic filter layer comprises one first colored pattern, and this first colored pattern is positioned at an identical subpixel area with this first look drop and this first colored pattern and this first look drop have identical color.
2. dot structure according to claim 1, is characterized in that, this first colored pattern is different from the colour saturation of this first look drop.
3. dot structure according to claim 1, is characterized in that, the color of this first look drop, this second look drop and the 3rd look drop is respectively red, blue and green.
4. dot structure according to claim 1, is characterized in that, the color of this first look drop is green.
5. dot structure according to claim 1, it is characterized in that, this chromatic filter layer also comprises one second colored pattern, and this second colored pattern is positioned at an identical subpixel area with this second look drop and this second colored pattern and this second look drop have identical color.
6. dot structure according to claim 1, it is characterized in that, this chromatic filter layer also comprises a trichromatic diagram case, and this trichromatic diagram case and the 3rd look drop are positioned at an identical subpixel area and this trichromatic diagram case and the 3rd look drop have identical color.
7. dot structure according to claim 1, it is characterized in that, respectively this subpixel area also comprises an electrodeless portion, at each this first pixel electrode and wherein between this first partition wall, and at each this second pixel electrode and wherein between this second partition wall.
8. dot structure according to claim 1, is characterized in that, this black display medium and this color display medium are made up of apolar substance, and this printing opacity display medium and those the first partition walls and those the second partition walls are made up of tool polar material.
9. dot structure according to claim 1, it is characterized in that, also comprise multiple first active member and multiple second active member, those first active members drive those the first pixel electrodes respectively, and those second active members drive those the second pixel electrodes respectively.
10. dot structure according to claim 9, is characterized in that, when this chromatic filter layer is configured at this first substrate, this chromatic filter layer and those the first active members combine.
11. dot structures according to claim 9, is characterized in that, when this chromatic filter layer is configured at this second substrate, this chromatic filter layer and those the second active members combine.
12. dot structures according to claim 1, is characterized in that, also comprise a reflecting electrode and are arranged on the outside surface of first substrate.
13. 1 kinds of dot structures, is characterized in that, have multiple subpixel area, and this dot structure comprises:
One first substrate;
One second substrate, is intervally installed with this first substrate;
Multiple first partition wall, is arranged on this first substrate, and those the first partition wall positions are in the boundary of those subpixel area;
Multiple second partition wall, is arranged on this second substrate, and those the second partition wall positions are in the boundary of those subpixel area;
Multiple first pixel electrode, is arranged at this first substrate and lays respectively in those subpixel area;
Multiple second pixel electrode, is arranged at this second substrate and lays respectively in those subpixel area;
One color display medium, is arranged at this first substrate, and this color display medium comprises one first look drop, in this first look drop subpixel area disposed therein;
One black display medium, is arranged at this second substrate, and between those second partition walls;
One printing opacity display medium, is arranged between this color display medium and this black display medium; And
One chromatic filter layer, be arranged at this first substrate and this second substrate wherein in one, this chromatic filter layer comprises one first colored pattern, one second colored pattern and a trichromatic diagram case, be arranged in those different subpixel area respectively, wherein this first colored pattern is positioned at an identical subpixel area with this first look drop and this first colored pattern and this first look drop have identical color.
14. dot structures according to claim 13, is characterized in that, this first colored pattern is different from the colour saturation of this first look drop.
15. dot structures according to claim 13, is characterized in that, the color of this first colored pattern, this second colored pattern and this trichromatic diagram case is respectively red, blue and green.
16. dot structures according to claim 13, is characterized in that, the color of this first colored pattern is green.
17. dot structures according to claim 13, it is characterized in that, this color display medium also comprises one second look drop, and this second look drop and this second colored pattern are positioned at an identical subpixel area and this second colored pattern and this second look drop have identical color.
18. dot structures according to claim 13, is characterized in that, also comprise a reflecting electrode and are arranged on the outside surface of first substrate.
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| TW102120373A TWI489136B (en) | 2013-06-07 | 2013-06-07 | Pixel structure |
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| CN104765216B (en) * | 2015-04-30 | 2017-12-19 | 京东方科技集团股份有限公司 | Array base palte and preparation method thereof and display device |
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| CN102707432A (en) * | 2011-10-18 | 2012-10-03 | 京东方科技集团股份有限公司 | Electrowetting display panel and method for producing same |
| CN103091925A (en) * | 2012-09-26 | 2013-05-08 | 友达光电股份有限公司 | Pixel structure |
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| ATE548678T1 (en) * | 2002-02-19 | 2012-03-15 | Samsung Lcd Nl R & D Ct Bv | DISPLAY DEVICE |
| JP2008203282A (en) * | 2005-06-03 | 2008-09-04 | Sharp Corp | Image display device |
| KR20080071250A (en) * | 2007-01-30 | 2008-08-04 | 전북대학교산학협력단 | Electrowetting display |
| US7903061B2 (en) * | 2007-05-31 | 2011-03-08 | Motorola, Inc. | Self illuminating electro wetting display |
| TW201239392A (en) * | 2011-03-25 | 2012-10-01 | Ind Tech Res Inst | Electro-wetting display device |
| TWI460469B (en) * | 2011-06-15 | 2014-11-11 | Au Optronics Corp | Switchable transparent electrowetting display device |
| KR101928434B1 (en) * | 2011-08-30 | 2018-12-13 | 삼성전자주식회사 | Electro-wetting device and Method of manufacturing Electro-wetting device |
| CN103018972A (en) * | 2012-12-31 | 2013-04-03 | 友达光电股份有限公司 | Liquid crystal display device with photoresistance spacers and electrowetting display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707432A (en) * | 2011-10-18 | 2012-10-03 | 京东方科技集团股份有限公司 | Electrowetting display panel and method for producing same |
| CN103091925A (en) * | 2012-09-26 | 2013-05-08 | 友达光电股份有限公司 | Pixel structure |
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| TWI489136B (en) | 2015-06-21 |
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