CN103487932A - Pixel structure - Google Patents

Pixel structure Download PDF

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Publication number
CN103487932A
CN103487932A CN201310335339.2A CN201310335339A CN103487932A CN 103487932 A CN103487932 A CN 103487932A CN 201310335339 A CN201310335339 A CN 201310335339A CN 103487932 A CN103487932 A CN 103487932A
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substrate
display medium
color
dot structure
subpixel area
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CN201310335339.2A
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CN103487932B (en
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陈宏易
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AU Optronics Corp
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AU Optronics Corp
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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

Dot structure
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 to add dyestuff (dye) or pigment (pigment) and form colored medium at the non-polar liquid layer mostly.But belong on the market at present nonpolar soluble dye selection few, and in order to allow colored medium that absorption coefficient is preferably arranged, must contain the particular functional base on dye structure, also may cause the solubleness of dyestuff in non-polar liquid to reduce, affect the performance of element color.
In other words, the color saturation of electric moistening display apparatus is not good at present.If improve color representation and select to increase the length of travel of light in color solution, 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, can effectively improve the not good problem of color of electric moistening display technique.
Dot structure of the present invention, have a plurality of subpixel area.Dot structure comprises a first substrate, a second substrate, a plurality of the first partition wall, a plurality of the second partition wall, a plurality of the first pixel electrode, a plurality of the 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.The first partition wall be arranged on first substrate and the first partition wall position in the boundary of subpixel area.The second partition wall is arranged on second substrate, and the second partition wall position is in the boundary of subpixel area.The first pixel electrode is arranged at first substrate and lays respectively in subpixel area.The 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.The first look drop, the second look drop and the 3rd look drop are separated to be arranged at respectively in different subpixel area by the first partition wall.The black display medium is arranged at second substrate, and between the second partition wall.The 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 on one, and chromatic filter layer comprises one first colored pattern.The 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 and have identical color.
In an embodiment of the present invention, above-mentioned the 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 the 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 the first look drop is green.
In an embodiment of the present invention, above-mentioned chromatic filter layer also comprises one second colored pattern.The 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 and 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 and have identical color.
In an embodiment of the present invention, above-mentioned each subpixel area also comprises an electrodeless section, and electrodeless section 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 consist of apolar substance, and printing opacity display medium and partition wall consist of the tool polar material.
In an embodiment of the present invention, above-mentioned dot structure also comprises a plurality of the first active members and a plurality of the second active member.The first active member drives respectively the first pixel electrode, and the second active member drives respectively the second pixel electrode.When chromatic filter layer is disposed at first substrate, chromatic filter layer and the first active member combine.In addition, when chromatic filter layer is disposed at second substrate, chromatic filter layer and the second active member combine.
In an embodiment of the present invention, above-mentioned also comprising on the outside surface that a reflecting electrode is arranged at first substrate.
Another kind of dot structure of the present invention, have a plurality of subpixel area.Dot structure comprises a first substrate, a second substrate, a plurality of the first partition wall, a plurality of the second partition wall, a plurality of the first pixel electrode, a plurality of the 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.The first partition wall be arranged on first substrate and the first partition wall position in the boundary of subpixel area.The second partition wall is arranged on second substrate, and the second partition wall position is in the boundary of subpixel area.The first pixel electrode is arranged at first substrate and lays respectively in subpixel area.The 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, is arranged in one of them subpixel area.The black display medium is arranged at second substrate, and between the second partition wall.The 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 on one.Chromatic filter layer comprises one first colored pattern, one second colored pattern and a trichromatic diagram case, and it is arranged at respectively in different subpixel area.The 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 and have identical color.
In an embodiment of the present invention, above-mentioned the 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 the 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 the first colored pattern is green.
In an embodiment of the present invention, above-mentioned color display medium also comprises one second look drop.The 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 and have identical color.
In an embodiment of the present invention, above-mentioned dot structure also comprises on the outside surface that a reflecting electrode is arranged at first substrate.
Based on above-mentioned, in the chromatic filter layer of the embodiment of the present invention, color filter patterns has a plurality of protrusion patterns 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 that helps improve display.In addition, the boundary of adjacent two color filter patterns can provide the effect of black matrix and can optionally omit the configuration of deceiving matrix.
For above-mentioned feature and advantage of the present invention can be become apparent, below especially exemplified by embodiment, and coordinate appended accompanying drawing to be described in detail below.
The accompanying drawing explanation
Figure 1A is the cut-open view illustrated according to the dot structure 100 of an experimental example of the present invention;
Figure 1B is dot structure 100 that Figure 1A the is shown cut-open view while applying bias voltage;
Fig. 2 A is the cut-open view illustrated according to the dot structure 200 of another experimental example of the present invention;
Fig. 2 B is dot structure 200 that Fig. 2 A the is shown cut-open view while applying 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 section
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 patterns
184,384: the second colored patterns 186,386: the trichromatic diagram cases
222: the second retes of 212: the first retes
234: the second partition walls of 232: the first partition walls
244: the second pixel electrodes of 242: the first pixel electrodes
250: color display medium 260: the black display medium
290: 392: the first active members of black matrix"
Within 394: the second, active member 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: show light M: the carmetta pattern
R: red drop R100, R200: scope
Y: yellow pattern
Embodiment
Figure 1A is the cut-open view illustrated according to the dot structure 100 of an experimental example of the present invention, and the cut-open view that Figure 1B is dot structure 100 that Figure 1A is shown while applying bias voltage.Please refer to Figure 1A and 1B, dot structure 100 comprises a first substrate 110, a second substrate 120, a plurality of partition wall 130, a plurality of pixel electrode 140, a common electrode 150, a plurality of coloured display medium 160, a printing opacity display medium 170 and a chromatic filter layer 180.In addition, dot structure 100 can have a plurality of subpixel area 102,104 and 106.
First substrate 110 and second substrate 120 are intervally installed.Be provided with a rete 112 on first substrate 110, 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.Particularly, partition wall 130 is arranged on the boundary of sub-pixel area 102,104 and 106 dot structure 100 is divided into to a plurality of 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 one electrodeless 101, wherein electrodeless 101 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 for example the oil droplet of colour 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 to this.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, the second colored pattern 184 and trichromatic diagram case 186, and the first colored pattern 182, the second colored pattern 184 and trichromatic diagram case 186 lay respectively in subpixel area 102, subpixel area 104 and subpixel area 106.
When the first colored pattern 182, the 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 106 of subpixel area.But, the color of the first colored pattern 182, the second colored pattern 184 and trichromatic diagram case 186 can be other color scheme, and for example 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 consist of the tool polar material, and rete 112 and coloured display medium 160 consist of apolar substance.When dot structure 100 not being applied to bias voltage, as shown in Figure 1A, coloured display medium 160 can be laid and be deployed on rete 112.In the situation that is the black oil droplet in coloured display medium 160, the light of incident dot structure 100 will be absorbed and show dark state picture.In the situation that is colored oil droplet in coloured display medium 160, the spectral range that the light that 180 energy of coloured display medium 160 and chromatic filter layer pass through has is not overlapped.Therefore, the light of special spectrum scope that can be by coloured display medium 160, can be absorbed and can not penetrate at chromatic filter layer 180.Or the light of special spectrum scope that can be by chromatic filter layer 180, also can be absorbed and can not penetrate at coloured display medium 160.Whereby, dot structure 100 can present the state of black, shows dark state picture.
As shown in Figure 1B, common electrode 150 and pixel electrode 140 are applied voltage and will make the rete 112 that originally non-polar material consist of to be tending towards polarity in the electric field formed between the two.Simultaneously, less because be subject to the electric field influence of pixel electrode 140 corresponding to the rete of electrodeless 101 112, the phenomenon that is tending towards polarity corresponding to the rete of electrodeless 101 112 is more not remarkable.Now, nonpolar coloured display medium 160 is difficult for being attached on corresponding the rete 112 of pixel electrode 140, and the printing opacity display medium 170 of polarity is because increase and coloured display medium 160 can be pushed towards electrodeless 101 with the adsorbability of rete 112.
Therefore, at dot structure 100, be applied in voltage and while driving, can not need by coloured display medium 160 by chromatic filter layer 180 and printing opacity display medium 170 through having a part in the light of dot structure 100 at least.Thus, only by the light of chromatic filter layer 180 and printing opacity display medium 170, will present the color of the first colored pattern 182, the second colored pattern 184 and the trichromatic diagram case 186 of chromatic filter layer 180.
While wanting to adjust the ratio of the light that only passes through chromatic filter layer 180 and printing opacity display medium 170, can adopt the bias voltage that changes common electrode 150 and pixel electrode 140 to realize.For example, in Figure 1B, during driving stronger, the coloured display medium 160 in the subpixel area 102 almost total position toward electrodeless 101 moves and assembles.In addition, adjustment by bias voltage, but coloured display medium 160 some past electrodeless 101 the position in subpixel area 104 are moved and assemble, and the coloured display medium 160 in subpixel area 106 can have more small part move and assemble toward the position of electrodeless 101.The ratio of assembling toward the position of electrodeless 101 by coloured display medium 160 can realize the display effect of different GTGs.
Fig. 2 A is the cut-open view illustrated according to the dot structure 200 of another experimental example of the present invention.Please refer to Fig. 2 A, dot structure 200 comprises a first substrate 210, a second substrate 220, a plurality of the first partition wall 232, a plurality of the second partition wall 234, a plurality of the first pixel electrode 242, a plurality of the second pixel electrode 244, a color display medium 250, a black display medium 260, a printing opacity display medium 270 and a chromatic filter layer 280.
First substrate 210 and second substrate 220 are intervally installed.Be provided with one first rete 212 on first substrate 210.Be provided with one second rete 222 on second substrate 220.The first rete 212 is in the face of the second rete 222.The first partition wall 232 and the second partition wall 234 all are 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.The setting that faces each other of the first partition wall 232 and the first partition wall 234.Particularly, the first partition wall 232 and the second partition wall 234 are divided into a plurality of subpixel area 202,204 and 206 by dot structure 200, are also the intersection that the first partition wall 232 and the second partition wall 234 are positioned at subpixel area 202,204 and 206.
The 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 one electrodeless 201 separately.Electrodeless 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, the first pixel electrode 242 and the second pixel electrode 244 can be the single or multiple lift structure, its material comprises transparent conductive material, for example: 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 is mixed with above-mentioned at least one material or other suitable material.The first rete 212 and the second rete 222 can be the single or multiple lift structure, for example, and its material comprises inorganic or organic insulation: 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 the subpixel area between the first partition wall 232 202,204 and 206.Color display medium 250 comprises a red drop R, a green drop G and a blue drop B, for example: and three primary colors, and red drop R, green drop G and blue drop B are arranged at respectively in subpixel area 202,204 and 206.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 between the first rete 212 and the second rete 222 that color display medium 250 and black display medium 260 are separated, and wherein printing opacity display medium 270 is for example 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, the first pixel electrodes 242 and is arranged between chromatic filter layer 280 and the first rete 212, but is not limited to this.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, chromatic filter layer 280 and color display medium 250 in same subpixel area 202,204 and 206, the wave spectrum scope that can pass through for light overlaps.
For example, carmetta can make the light of other color pass through color for absorbing green, therefore carmetta can be corresponding to the color beyond green.Yellow can make the light of other color pass through color for absorbing blueness, therefore yellow can be corresponding to the color beyond blueness.Cyan can make the light of other color pass through color for absorbing redness, therefore cyan can be corresponding to the color beyond redness.In the present embodiment, the carmetta pattern M of chromatic filter layer 280 is corresponding to red drop R, and the yellow pattern Y of chromatic filter layer 280 is corresponding to green drop G, and the cyan pattern C of chromatic filter layer 280 is corresponding to blue drop B.
In this experimental example, a black matrix" 290 optionally is set on the second rete 222 of second substrate 220, and is arranged in electrodeless 201.Borrow the setting of black matrix" 290 can guarantee that electrodeless 201 is rendered as black and not affected by the color of display medium.In other embodiments, black matrix" 290 can omit and not establish.
Printing opacity display medium 270, the first partition wall 232 and the second partition wall 234 are all to consist of the tool polar material.The first rete 212, the second rete 222, black display medium 260 and 250 of color display mediums are all to consist of apolar substance.Therefore, the first rete 212, the second rete 222, black display medium 260 and color display medium 250 all present hydrophobic property.When dot structure 200 not being applied to bias voltage, the first rete 212 and color display medium 250 are understood because being all each other hydrophobic property, and make color display medium 250 lay and be deployed on the first rete 212.The second rete 222 and black display medium 260 are understood because being all each other hydrophobic property, and make black display medium 260 lay and be deployed on the second rete 222.
In this experimental example, in the time will controlling the show state of dot structure 200, can adopt similar in appearance to the mode of Figure 1B and realize.For example, can apply bias voltage 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.Black display medium 260 can all absorb nearly all visible ray, therefore by the second pixel electrode 244 being applied to bias voltage, can adjust the distribution of black display medium 260 to change light by the amount of penetrating of dot structure 200.Now, the shown GTG of each subpixel area 202,204 and 206 can be implemented respectively.
In addition, in the time of changing the shown color of each subpixel area 202,204 and 206, can adjust the distribution of color display medium 250 and realize by the first pixel electrode 242 being applied to bias voltage.For example, Fig. 2 B is dot structure 200 that Fig. 2 A the is shown cut-open view while applying bias voltage.In the time will making dot structure 200 present carmetta, as shown in Fig. 2 B, subpixel area 204 can not be applied in voltage with the first pixel electrode 242 and the second pixel electrode 244 in subpixel area 206, and the first pixel electrode 242 in subpixel area 202 and the second pixel electrode 244 all are applied in voltage.So, the black display medium 260 in subpixel area 202 and red drop R all assemble toward the position of electrodeless 201.Therefore, light can only pass through the carmetta pattern M of chromatic filter layer 280, and makes dot structure 200 present carmetta.If, while making dot structure 200 present yellow or cyan, also can make in a like fashion, make light can pass through yellow pattern Y or the cyan pattern C in chromatic filter layer 280.
In addition, in the time will making dot structure 200 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 201.Moreover, make the red drop R in subpixel area 202 be deployed in the first rete 212.So, light can pass through carmetta pattern M and the red drop R of chromatic filter layer 280.Because carmetta pattern M can be by the light beyond green, red drop R only can pass through red light, therefore only red light can pass through carmetta pattern M and red drop R, and makes dot structure 200 present red image.Certainly, when the color that will adjust between carmetta and redness, can adjust the voltage of the first pixel electrode 242, to change the spread of red drop R.
Fig. 3 is the chromatic diagram that CIE1931 is shown.Please refer to Fig. 3, the color that the dot structure 100 of previous experiments example is based on the first colored pattern 182, the second colored pattern 184 and trichromatic diagram case 186 in chromatic filter layer 180 carrys out the image of display color, and wherein the color of the first colored pattern 182, the second colored pattern 184 and trichromatic diagram case 186 for example drops on respectively coordinate points r, g and b 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 for example drops on respectively coordinate points r, g and b, and in chromatic filter layer 280, the color of multicolour pattern C, M, Y for example drops on respectively coordinate points c, m and y.Therefore, the displayable color of dot structure 200 drops in scope R200.In comparison, scope R200 to contain area larger, so the displayable color of dot structure 200 horn of plenty more.So the present invention can adopt the design of above-mentioned dot structure 200 as basic concept, the multicolour pattern of the chromatic filter layer colored drop of arranging in pairs or groups is arranged on to the color display effect to realize ideal in identical subpixel area.Except above experimental example is described, below will further illustrate spirit of the present invention with specific embodiment, yet the present invention is not limited with the described particular content of the following example.
Fig. 4 is the diagrammatic cross-section that the dot structure of 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 in two figure, identical member will indicate with similar symbol, does not separately repeat.Particularly, the setting position of first substrate 210, second substrate 220, a plurality of the first partition wall 232, a plurality of the second partition wall 234, a plurality of the first pixel electrode 242, a plurality of the second pixel electrode 244, black display medium 260, printing opacity display medium 270 and black matrix" 290 and function etc. can be with reference to the associated description of Fig. 2 A and Fig. 2 B.The difference of the present embodiment and Fig. 2 A mainly is, the chromatic filter layer 380 of the present embodiment includes the first colored pattern 382, the second colored pattern 384 and trichromatic diagram case 386, and the color of the first colored pattern 382, the second colored pattern 384 and trichromatic diagram case 386 is for example the color that is same as red drop R, green drop G and blue drop B.
Known 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, the green and blue in three primary colors.Therefore, the first colored pattern 382, the second colored pattern 384 and trichromatic diagram case 386 can be respectively redness, green and blue, for example: three primary colors.
In the present embodiment, the first colored pattern 382 all is arranged in subpixel area 302, the second colored patterns 384 with red drop R and all is arranged in subpixel area 304 with green drop G, and trichromatic diagram case 386 all is arranged in subpixel area 308 with blue drop B.Simultaneously, the 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, can obtain purer/bright-coloured redness, green or blue.In other embodiment, the first colored pattern 382 is different in essence with the color density of red drop R, the 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, redness, the green or blue of larger Color Range can be obtained, and still colour vividness can be maintained as far as possible.
Because the technical development of the relative color display medium 250 of the technical development of chromatic filter layer 380 is more ripe.The color of chromatic filter layer 380 can be adjusted to some extent according to different demands.Therefore, utilize the first colored pattern 382 in chromatic filter layer 380, the second colored pattern 384 and trichromatic diagram case 386 collocation red drop R, green drop G and blue drop B can 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 for example drops on coordinate points r1, and the color of the second colored pattern 384 for example drops on coordinate points g1 and the color of trichromatic diagram case 384 for example 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 with respect to coordinate points r closer to red end points, coordinate points g1 with respect to coordinate points g closer to green end points, and coordinate points b1 with respect to coordinate points b closer to blue end points.Therefore, select such chromatic filter layer 380 and color display medium 250 to come the display color image can have more gay colours performance, for example colour saturation can be higher than the dot structure of Fig. 2 A 200.In addition, the shown image of dot structure 300 also can meet the requirement of different display color agreements.
It is worth mentioning that, the present invention does not limit pattern that chromatic filter layer 380 need to the have three kinds of different colours colour display screen of arranging in pairs or groups and shows medium 250.In other embodiments, dot structure 300 can be only for wherein a kind of or wherein two kinds of colors are arranged in pairs or groups the multicolour pattern of chromatic filter layer 380 to realize needed display effect.That is to say, when color display medium 250 has three kinds of colors, the first colored pattern 382, the second colored pattern 384 and trichromatic diagram case 386 can only have one or only have that wherein both are 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 can only have one or only have that wherein both are arranged in dot structure 300.For example, when green color density is not enough, the first colored pattern 382, the 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, not in order to limit the present invention.
Mode of operation just as dot structure 200, dot structure 300 can be controlled black display medium 260 and the distribution of color display medium 250 in each subpixel area 302,304 and 306 by the first pixel electrode 242 and the second pixel electrode 244 being applied to voltage, to realize different GTGs and different color effect.At this, dot structure 300 can also include a plurality of the first active members 392 and a plurality of the second active members 394, and wherein the first active member 392 is connected to respectively the first pixel electrode 242, and the second active member 394 is connected to respectively the second pixel electrode 244.Thus, different driving voltages can be 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 all is arranged on first substrate 210 with chromatic filter layer 380 in the present embodiment, the first active member 392 can be integrated each other with chromatic filter layer 380 and form active member (active device on color filter array on chromatic filter layer, AOC) structure or the chromatic filter layer structure of (color filter on array, COA) on active member.In addition, chromatic filter layer 380 also optionally is disposed on second substrate 220.Now, the second active member 394 can be integrated each other with chromatic filter layer 380 and forms structure or the chromatic filter layer structure on active member of active member on chromatic filter layer.
In addition, dot structure 300 can also comprise a reflecting electrode 396, and it is arranged on the outside surface of first substrate 210.Therefore, the light by second substrate 220 incident dot structures 300 can be subject to the reflection of reflecting electrode 396 to be shown.In addition, the design of actual displayed device can also comprise a light source 398, and it is set to provide and show light L towards dot structure 300.For example, light source 398 is arranged at the side of first substrate 210, so that first substrate 210 is as photocon.In other embodiment, also comprise a photocon (not indicating) and be arranged between first substrate 210 and reflecting electrode 396, provide photoconduction to draw effect.Therefore, show light L can be 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 be shown.If dot structure 300 does not comprise reflecting electrode 396, light can be from first substrate 210 or second substrate 220 incidents, and are 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 300 of the dot structure 200 of Fig. 2 A and Fig. 4 A can be applied to the penetration display technique 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 that improves electric moistening display technique.In addition, the dot structure of the embodiment of the present invention can be selected specific color is arranged to multicolour pattern and colored drop to show desirable color simultaneously.

Claims (18)

1. a dot structure, is characterized in that, has a plurality of subpixel area, and this dot structure comprises:
One first substrate;
One second substrate, be intervally installed with this first substrate;
A plurality of the first partition walls, be arranged on this first substrate, and those the first partition wall positions are in the boundary of those subpixel area;
A plurality of the second partition walls, be arranged on this second substrate, and those the second partition wall positions are in the boundary of those subpixel area;
A plurality of the first pixel electrodes, be arranged at this first substrate and lay respectively in those subpixel area;
A plurality of the second pixel electrodes, be arranged at this second substrate and lay respectively in those subpixel area;
One color display medium, be 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, by those first partition walls, separates to be arranged at respectively in those different subpixel area;
One black display medium, be arranged at this second substrate, and between those second partition walls;
One printing opacity display medium, be 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 on one, this chromatic filter layer comprises one first colored pattern, and this first colored pattern is positioned at an identical subpixel area and this first colored pattern and this first look drop with this first look drop and has 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, it is red, blue and green that the color of this first look drop, this second look drop and the 3rd look drop is respectively.
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 and this second colored pattern and this second look drop with this second look drop and has 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 is positioned at an identical subpixel area and this trichromatic diagram case and the 3rd look drop with the 3rd look drop and has identical color.
7. dot structure according to claim 1, it is characterized in that, respectively this subpixel area also comprises an electrodeless section, at this first pixel electrode respectively and wherein between this first partition wall, and at this second pixel electrode respectively 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 consist of apolar substance, and this printing opacity display medium and those partition walls consist of the tool polar material.
9. dot structure according to claim 1, it is characterized in that, also comprise a plurality of the first active members and a plurality of the second active member, those first active members drive respectively those the first pixel electrodes, and those second active members drive respectively those the second pixel electrodes.
10. dot structure according to claim 9, is characterized in that, when this chromatic filter layer is disposed at this first substrate, this chromatic filter layer and those the first active members combine.
11. dot structure according to claim 9, is characterized in that, when this chromatic filter layer is disposed at this second substrate, this chromatic filter layer and those the second active members combine.
12. dot structure according to claim 1, is characterized in that, also comprises on the outside surface that a reflecting electrode is arranged at first substrate.
13. a dot structure, is characterized in that, has a plurality of subpixel area, this dot structure comprises:
One first substrate;
One second substrate, be intervally installed with this first substrate;
A plurality of the first partition walls, be arranged on this first substrate, and those the first partition wall positions are in the boundary of those subpixel area;
A plurality of the second partition walls, be arranged on this second substrate, and those the second partition wall positions are in the boundary of those subpixel area;
A plurality of the first pixel electrodes, be arranged at this first substrate and lay respectively in those subpixel area;
A plurality of the second pixel electrodes, be arranged at this second substrate and lay respectively in those subpixel area;
One color display medium, be arranged at this first substrate, and this color display medium comprises one first look drop, and this first look drop is arranged in one of them subpixel area;
One black display medium, be arranged at this second substrate, and between those second partition walls;
One printing opacity display medium, be 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 on one, this chromatic filter layer comprises one first colored pattern, one second colored pattern and a trichromatic diagram case, be arranged at respectively in those different subpixel area, wherein this first colored pattern is positioned at an identical subpixel area and this first colored pattern and this first look drop with this first look drop and has identical color.
14. dot structure 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 structure according to claim 13, is characterized in that, it is red, blue and green that the color of this first colored pattern, this second colored pattern and this trichromatic diagram case is respectively.
16. dot structure according to claim 13, is characterized in that, the color of this first colored pattern is green.
17. dot structure according to claim 13, it is characterized in that, this color display medium also comprises one second look drop, and this second look drop is positioned at an identical subpixel area and this second colored pattern and this second look drop with this second colored pattern and has identical color.
18. dot structure according to claim 13, is characterized in that, also comprises on the outside surface that a reflecting electrode is arranged at first substrate.
CN201310335339.2A 2013-06-07 2013-08-05 Pixel structure Expired - Fee Related CN103487932B (en)

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