CN101650894B - Flexible display panel and manufacturing method thereof - Google Patents
Flexible display panel and manufacturing method thereof Download PDFInfo
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- CN101650894B CN101650894B CN200810146277A CN200810146277A CN101650894B CN 101650894 B CN101650894 B CN 101650894B CN 200810146277 A CN200810146277 A CN 200810146277A CN 200810146277 A CN200810146277 A CN 200810146277A CN 101650894 B CN101650894 B CN 101650894B
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Abstract
The invention relates to a flexible display panel and a manufacturing method thereof. The flexible display panel comprises a flexible substrate, a plurality of electrophoretic pixel units, a plurality of electrowetting pixel units, a light transmitting protective layer and a driving circuit, wherein the electrophoretic pixel units and the electrowetting pixel units are respectively arranged in a first display area and a second display area of the flexible substrate; the light transmitting protective layer is arranged on the electrophoretic pixel units and the electrowetting pixel units; the driving circuit is arranged in a non-display area of the flexible substrate, and is electrically connected to the electrophoretic pixel units and the electrowetting pixel units; and the flexible display panel can display a static picture through the electrophoretic pixel units, and display a dynamic picture through the electrowetting pixel units so as to simultaneously achieve the efficiencies of saving electricity and displaying the dynamic picture.
Description
Technical field
The present invention relates to a kind of flexible display panel and manufacturing approach thereof, particularly relate to a kind of flexible display panel and manufacturing approach thereof with pixel cell of different display mediums.
Background technology
Progress along with the plane display technique; More and more many electronic products all are equipped with display panel; Especially portable electronic product (portable electrical product); For example mobile phone (mobilephone), e-book (e-book), digital camera (digital camera) and personal digital assistant (personaldigital assistant, PDA) etc.Because portable electronic product is the trend development towards in light weight and thin thickness, so be applied in the advantage that the display panel of portable electronic product also need possess in light weight and thin thickness.
Hold above-mentioned because flexible display panel not only has the advantage of in light weight and thin thickness, the advantage that also has deflection and cannot not fall brokenly, so the manufacturing of flexible display panel has become important development trend.Common flexible display panel is electrophoretic display panel (electro-phoretic displaypanel at present; EPD panel); It is a kind ofly to control charged particle distribution kenel through electric field, and then changes the reflectivity of viewing area to surround lighting, to produce the display panel of display effect.Based on its displaying principle, electrophoretic display panel has the characteristics of bistable state (bistability) and illuminating source that need not be extra, thereby meets modern technologies need possess high electricity-saving characteristic simultaneously to flexible display panel requirement.
Yet with another angle, the bistable characteristic of electrophoretic display device (EPD) but makes it can't show film or the animation that needs the high speed renewal rate.Therefore, how to make flexible display panel when having the characteristic of high power saving, also can show colorful animation, one of the subject under discussion that the related personnel was concerned about in real field for this reason.
Because the defective that above-mentioned existing flexible display panel exists; The inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge; And cooperate the utilization of studying the science, actively study innovation, in the hope of founding a kind of new flexible display panel and manufacturing approach thereof; Can improve general existing flexible display panel, make it have more practicality.Through constantly research, design, and after studying repeatedly and improving, found out the present invention of true tool practical value finally.
Summary of the invention
The objective of the invention is to; Overcome the defective that existing flexible display panel exists, and a kind of new flexible display panel is provided, technical matters to be solved is to make it not only have the characteristic of high power saving; More can show dynamic menu by the high speed renewal rate, thereby be suitable for practicality more.
Another object of the present invention is to, a kind of manufacturing approach of flexible display panel is provided, to produce high power saving and can show the flexible display panel of animation.
The object of the invention and solve its technical matters and adopt following technical scheme to realize.A kind of flexible display panel according to the present invention proposes comprises flexible substrate, a plurality of electrophoretic display unit, the moistening pixel cell of a plurality of electricity, a light transmission protective layer and one drive circuit.Wherein, The flexible substrate has one first viewing area, one second viewing area and a non-display area; Above-mentioned electrophoretic display unit promptly is disposed in first viewing area of flexible substrate, and above-mentioned electric moistening pixel cell then is to be disposed in second viewing area of flexible substrate.Light transmission protective layer is to be disposed on above-mentioned electrophoretic display unit and the electric moistening pixel cell, and driving circuit then is to be disposed in the non-display area of flexible substrate, and is electrically connected to above-mentioned electrophoretic display unit and electric moistening pixel cell.
The object of the invention and solve its technical matters and also can adopt following technical measures further to realize.
In one embodiment of this invention, above-mentioned each electrophoretic display unit comprises first reflection horizon, electrophoresis layer, first pixel electrode and the first film transistor.Wherein, electrophoresis layer has a plurality of charged particles, and it is the top that is disposed at first reflection horizon, and first pixel electrode then is to be disposed between the electrophoresis layer and first reflection horizon, and is electrically connected at the first film transistor.In an embodiment of the present invention, electrophoresis layer can be little cup type electrophoresis layer or microcapsules formula electrophoresis layer.
In one embodiment of this invention, the charged particle in above-mentioned each electrophoretic display unit can be red zone charged, green charged particle or blue ribbon charged.In another embodiment, also can be charged black particles and white charged particles.
In one embodiment of this invention, above-mentioned each electric moistening pixel cell comprises second reflection horizon, electric wettable layer, second pixel electrode and second thin film transistor (TFT).Wherein, electric wettable layer is to be disposed at top, second reflection horizon, and comprises little cup, printing opacity solution and staining solution.Printing opacity solution and staining solution all are to annotate in little cup, and printing opacity solution has electric conductivity or polarity, and staining solution is then immiscible with printing opacity solution, and is positioned at printing opacity solution below.Second pixel electrode then is to be disposed between second reflection horizon and the electric wettable layer, and is electrically connected at second thin film transistor (TFT).
In one embodiment of this invention, above-mentioned printing opacity solution can be water, and staining solution then can be a printing ink.Wherein, staining solution for example is red ink, green ink or blue ink.In addition, the staining solution of these electric wettable layer also can be black ink.
In one embodiment of this invention, above-mentioned flexible display panel can also comprise a colored filter, is disposed between light transmission protective layer and electrophoretic display unit and the electric moistening pixel cell.
The object of the invention and solve its technical matters and also adopt following technical scheme to realize.The manufacturing approach of a kind of flexible display panel that proposes according to the present invention, its steps performed is on a glass baseplate, to form a flexible substrate earlier.Wherein, the flexible substrate has one first viewing area, one second viewing area and a non-display area.Then, in first viewing area of flexible substrate, form a plurality of electrophoretic display unit, and in second viewing area of flexible substrate, form the moistening pixel cell of a plurality of electricity.Then, form a light transmission protective layer, again glass baseplate is separated with the flexible substrate afterwards to cover electrophoretic display unit and electric moistening pixel cell.
The object of the invention and solve its technical matters and also can adopt following technical measures further to realize.
In one embodiment of this invention; The step that forms above-mentioned electrophoretic display unit and electric moistening pixel cell is included in and forms a plurality of second thin film transistor (TFT)s of a plurality of the first film transistor AND gates on the flexible substrate; Wherein these the first film transistors are to be positioned at first viewing area, and these second thin film transistor (TFT)s are to be positioned at second viewing area.Then, on the flexible substrate, form a plurality of first pixel electrodes and a plurality of second pixel electrode, wherein these first pixel electrodes are to be positioned at first viewing area, and each the first film transistor is to be electrically connected to the first corresponding pixel electrode.And these second pixel electrodes are to be positioned at second viewing area, and each second thin film transistor (TFT) is to be electrically connected to should second pixel electrode.Then, formation has the electrophoresis layer of a plurality of charged particles above first pixel electrode, and above each second pixel electrode, forms an electric wettable layer respectively.The step that forms each electric wettable layer comprises formation one little cup, in each little cup, inserts a printing opacity solution and a staining solution again.Wherein, printing opacity solution tool electric conductivity or polarity, and staining solution and printing opacity solution are immiscible, and be positioned at printing opacity solution below.
In one embodiment of this invention; Above-mentioned electrophoresis layer is with little cup type electrophoresis layer or microcapsules formula electrophoresis layer; And in each electrophoretic display unit; Above-mentioned charged particle can comprise charged black particles and white charged particles, also can be red zone charged, green charged particle or blue ribbon charged.On the other hand, above-mentioned staining solution can be red ink, green ink or blue ink.Certainly, also can be black ink.
In one embodiment of this invention, forming between the light transmission protective layer, can also on electrophoretic display unit and electric moistening pixel cell, form a colored filter earlier.
By technique scheme, flexible display panel of the present invention and manufacturing approach thereof have the following advantages at least:
The present invention is because of adopt electrophoretic display unit and electric moistening pixel cell simultaneously in single flexible display panel; Therefore the bistable characteristic of electrophoresis layer tool capable of using shows tableaux (like literal), and the characteristic of utilizing electric wettable layer can change show state rapidly shows dynamic menu (like film or animation etc.).In other words, flexible display panel of the present invention can have power saving simultaneously and can show the effect of dynamic menu.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of instructions, and for let of the present invention above-mentioned with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Figure 1A is in the diagrammatic cross-section of dark attitude for flexible display panel in the first embodiment of the present invention.
Figure 1B is in the diagrammatic cross-section of bright attitude for flexible display panel in the first embodiment of the present invention.
Fig. 2 is the diagrammatic cross-section of flexible display panel in the second embodiment of the present invention.
Fig. 3 is the diagrammatic cross-section of flexible display panel in the third embodiment of the present invention.
Fig. 4 A to Fig. 4 D is the processing procedure sectional view of flexible display panel in one embodiment of the invention.
100,200: flexible display panel
101: glass baseplate 110: the flexible substrate
114: the second viewing areas, 112: the first viewing areas
116: non-display area 120: the electrophoretic display unit
The reflection horizon 124 in 122: the first: electrophoresis layer
125,131: 126: the first pixel electrodes of little cup
127: dielectric solution 128: the first film transistor
129,129b, 129w: charged particle 130: electric moistening pixel cell
The reflection horizon 133 in 132: the second: printing opacity solution
134: electric wettable layer 135: staining solution
138: the second thin film transistor (TFT)s of 136: the second pixel electrodes
140: light transmission protective layer 150: driving circuit
160: colored filter 170: the edge colloid
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention; Below in conjunction with accompanying drawing and preferred embodiment; To flexible display panel and its embodiment of manufacturing approach, method, step, characteristic and the effect thereof that proposes according to the present invention, specify as after.
Figure 1A is flexible display panel of the present invention is in dark attitude in first embodiment a diagrammatic cross-section, and Figure 1B then is in the diagrammatic cross-section of bright attitude in first embodiment for flexible display panel of the present invention.See also shown in Figure 1A and Figure 1B, flexible display panel 100 comprises flexible substrate 110, a plurality of electrophoresis (electro-phoretic) pixel cell 120, a plurality of electricity moistening (electro-wetting) pixel cell 130, light transmission protective layer 140 and driving circuit 150.Wherein, flexible substrate 110 has first viewing area 112, second viewing area 114 and non-display area 116.Electrophoretic display unit 120 is to be disposed in first viewing area 112, and electric moistening pixel cell 130 then is to be disposed in second viewing area 114.At this, graphic comparatively succinct for making, only in first viewing area 112 and second viewing area 114, show an electrophoretic display unit 120 and an electric moistening pixel cell 130 respectively.
In the present embodiment, each electrophoretic display unit 120 comprises first reflection horizon 122, electrophoresis layer 124, first pixel electrode (pixel electrode) 126 and the first film transistor (thin filmtransistor, TFT) 128.In each electrophoretic display unit 120; Electrophoresis layer 124 with a plurality of charged particles 129 is to be disposed at 122 tops, first reflection horizon; 126 of first pixel electrodes are to be disposed between first reflection horizon 122 and the electrophoresis layer 124, and electrically connect with the first film transistor 128.Wherein, first reflection horizon 122 for example be with the first film transistor 128 in grid or source/drain (not illustrating) in same processing procedure, be formed in the lump on the flexible substrate 110.
The electrophoresis layer 124 of present embodiment for example is little cup type electrophoresis layer.Specifically; In each electrophoretic display unit 120; The electrophoresis layer 124 of present embodiment comprises little cup (microcup) 125, dielectric solution 127 and a plurality of charged particle 129; Wherein little cup 125 is in order to carrying dielectric solution 127 and charged particle 129, and charged particle 129 can change its position in dielectric solution 127 in response to the electric field in the electrophoretic display unit 120.In the present embodiment, these charged particles 129 comprise electrically opposite charged black particles 129b and white charged particles 129w.
Shown in Figure 1A; In electrophoretic display unit 120; When charged black particles 129b moved toward the surface of dielectric solution 127 in response to the electric field in the electrophoretic display unit 120, this electrophoretic display unit 120 can absorb the surround lighting of outside institute incident, thereby demonstrates dark attitude picture.Otherwise shown in Figure 1B; When white charged particles 129w moves toward the surface of dielectric solution 127 in response to the change of the electric field in the electrophoretic display unit 120; Then this electrophoretic display unit 120 can be through the surround lighting of the first reflection horizon outside institute of 122 reflections incident, to demonstrate bright attitude picture.
Owing to the position of charged particle 129 in dielectric solution 127 is to change in response to the electric field in the electrophoretic display unit 120; Therefore under the situation of the electric field that does not change electrophoretic display unit 120; Electrophoretic display unit 120 can't change its show state; Even after closing the power supply of supplying with electrophoretic display unit 120, its show state still can not change.Therefore, only when needs change the show state of electrophoretic display unit 120, just need to supply its power supply.Hence one can see that, and flexible display panel 100 can utilize the electrophoretic display unit 120 in first viewing area 112 to show static picture, to reach less electricity consumption.
What deserves to be mentioned is that in the second embodiment of the present invention, the electrophoresis layer in the electrophoretic display unit 120 also can be capsule-type electrophoresis layer 224, and is as shown in Figure 2.
Please consult once more shown in Figure 1A, be disposed at each electric moistening pixel cell 130 in second viewing area 114 and comprise second reflection horizon 132, electric wettable layer 134, second pixel electrode 136 and second thin film transistor (TFT) 138.Wherein, electric wettable layer 134 is disposed at 132 tops, second reflection horizon, and includes little cup 131, printing opacity solution 133 and staining solution 135.Printing opacity solution 133 is to annotate in little cup 131 with 135 of staining solutions.In other words, little cup 131 is in order to carry the printing opacity solution 133 and staining solution 135 in each electric moistening pixel cell 130.Wherein, staining solution 135 is immiscible with printing opacity solution 133.With present embodiment, printing opacity solution 133 is water, and 135 of staining solutions are black ink.And because the lower surface tool hydrophobicity of little cup 131, therefore under original state, staining solution 135 can be positioned at printing opacity solution 133 belows, and covers the lower surface of little cup 131.
Hold above-mentioned; Because printing opacity solution 133 has electric conductivity or polarity, therefore applying a voltage on second pixel electrode 136 through second thin film transistor (TFT) 138, and when printing opacity solution 133 and 136 generations of second pixel electrode electric field; Surface tension between printing opacity solution 133 and the staining solution 135 can change; Make staining solution 135 dwindled distortion, and expose the part surface of little cup 131 bottoms, shown in Figure 1B by 133 extruding of printing opacity solution.At this moment, electric moistening pixel cell 130 can be through the surround lighting of the second reflection horizon outside institute of 132 reflections incident, to demonstrate bright attitude picture.Otherwise then shown in Figure 1A, when not applying a voltage to second pixel electrode 136, staining solution 135 is the lower surface that cover little cup 131, and the surround lighting of outside institute incident this moment will be colored solution and absorb, thereby demonstrates dark attitude picture.
Because the surface tension between printing opacity solution 133 and the staining solution 135 can promptly change along with the electric field level between the printing opacity solution 133 and second pixel electrode 136, so flexible display panel 100 can come the fast dynamic menu of display frame renewal speed through these the electric moistening pixel cells 130 in second viewing area 114.
Specifically; Second thin film transistor (TFT) 138 is that the first film transistor 128 with electrophoretic display unit 120 is made with same processing procedure; And these the first film transistors 128 and second thin film transistor (TFT) 138 can be active thin film transistor (TFT)s, also can be the passive type thin film transistor (TFT)s.In addition, 136 of second pixel electrodes are to make with same processing procedure with first pixel electrode 126 of electrophoretic display unit 120, and back literary composition will further specify it again.
Please continue with reference to Figure 1A and Figure 1B; Light transmission protective layer 140 is to be disposed on electrophoretic display unit 120 and the electric moistening pixel cell 130; 150 of driving circuits are to be disposed in the non-display area 116 of flexible substrate 110; And be electrically connected to each electrophoretic display unit 120 and electric moistening pixel cell 130, in order to control the show state of these electrophoretic display unit 120 and electric moistening pixel cell 130.In addition; Flexible display panel 100 also comprises edge colloid 170; Be disposed at the intersection of non-display area 116 and first viewing area 112 or second viewing area 114, in order to electrophoresis layer 124 and electric wettable layer 134 are sealed between flexible substrate 110 and the light transmission protective layer 140.
In addition; The flexible display panel 100 of present embodiment also disposes colored filter (color filter) 160 between light transmission protective layer 140 and electrophoretic display unit 120 and electric moistening pixel cell 130; Light so that first reflection horizon 122 and second reflection horizon 132 are reflected converts coloured light into, and then makes flexible display panel 100 can show the colour picture of full gamut.
What deserves to be mentioned is, except the mode of configuration colored filter 160, also can directly utilize electrophoresis layer 124 to make flexible display panel 100 can show the colour picture of full gamut with color.For instance, the electrophoresis layer 124 in each electrophoretic display unit 120 can only have white charged particles 129w or charged black particles 129b, and the color of the dielectric of arranging in pairs or groups again solution 127 is even flexible display panel 100 reaches the effect that shows the full gamut picture.Have the knack of this art and should understand its ins and outs, repeat no more here.
Fig. 3 is the diagrammatic cross-section of flexible display panel in the third embodiment of the present invention.Please with reference to Fig. 3; The different charged particle 129 that is in the electrophoresis layer 124 of present embodiment of the flexible display panel 200 of present embodiment and the flexible display panel 100 of first embodiment is colored charged particle; Therefore when moved on the surface of charged particle 129 past dielectric solution 127 in response to the electric field in the electrophoretic display unit 120, the color that electrophoretic display unit 120 is demonstrated was the color of these charged particles 129.With present embodiment, can have redness, green or blue charged particle 129 in these electrophoretic display unit 120 respectively, so that demonstrate the picture of full gamut according to this trichromatic combination.In addition, 127 of dielectric solution are dark solution, like dark solution.
And in the electric wettable layer 134 of present embodiment, 135 of staining solutions can be redness, green or blue ink, and it for example is to insert to little cup 131 with the mode of ink jet printing (ink jet printing).Thus, on second pixel electrode 136, be not applied with in the electric moistening pixel cell 130 of voltage, can convert coloured light into through the light that staining solution 135 is reflected second reflection horizon 132.
From the above; Since flexible display panel 200 be directly with the electrophoresis layer 124 of colour and electric wettable layer 134 respectively as the display medium of electrophoretic display unit 120 and electric moistening pixel cell 130; Therefore need not on light transmission protective layer 140, dispose colored filter again, can make flexible display panel 200 have the function of display color picture.
Have the knack of the processing procedure that this art is further understood flexible display panel of the present invention for making, hereinafter will be lifted embodiment it will be described.
Fig. 4 A to Fig. 4 D is the processing procedure sectional view of flexible display panel in one embodiment of the invention.Please, at first on glass baseplate 101, form flexible substrate 110 earlier with reference to Fig. 4 A.Wherein, the method that forms flexible substrate 110 for example is that pi (polyimide is called for short PI) is coated on the glass baseplate 101.Then, in first viewing area 112 of flexible substrate 110, form a plurality of electrophoretic display unit, and in second viewing area 114, form the moistening pixel cell of a plurality of electricity.Wherein, The step that forms electrophoretic display unit and electric moistening pixel cell for example is to form a plurality of the first film transistors 128 and first reflection horizon 122 in first viewing area 112 earlier, and in second viewing area 114, forms a plurality of second thin film transistor (TFT)s 138 and second reflection horizon 132.Said as preamble; First reflection horizon 122 for example be with the first film transistor 128 in grid or source/drain (not illustrating) in same processing procedure, be formed in the lump on the flexible substrate 110,132 in second reflection horizon can be formed on the flexible substrate 110 in same processing procedure with grid or the source/drain (not illustrating) in second thin film transistor (TFT) 138 in the lump.And the processing procedure that the first film transistor 128 and second thin film transistor (TFT) 138 can be identical is formed on the flexible substrate 110 simultaneously.
Please, above first reflection horizon 122, form a plurality of first pixel electrodes 126, and form a plurality of second pixel electrodes 136 in 132 tops, second reflection horizon simultaneously with reference to Fig. 4 B.Wherein, The material of first pixel electrode 126 and second pixel electrode 136 can be indium tin oxide (Indium Tin Oxide; ITO), indium-zinc oxide (Indium Zinc Oxide; IZO) or other transparent metal oxide, and each first pixel electrode 126 is to be electrically connected to its pairing the first film transistor 128 respectively, and each second pixel electrode 136 then is to be electrically connected to its pairing second thin film transistor (TFT) 138 respectively.
Please with reference to Fig. 4 C; After forming first pixel electrode 126 and second pixel electrode 136; Then promptly above first pixel electrode 126, form and have the electrophoresis layer 124 of a plurality of charged particles 129, and above each second pixel electrode 136, form electric wettable layer 134.Wherein, Electrophoresis layer 124 is except can being the little cup type electrophoresis layer that illustrates of present embodiment; Also can be capsule-type electrophoresis layer (as shown in Figure 2), and the charged particle 129 in single electrophoretic display unit 120 can be black or white, or have the charged particle of black and white simultaneously.Even also can be the charged particle of colored (as red, green or blue).The detailed processing procedure of electrophoresis layer 124 related personnel of technical field is for this reason known, and repeats no more here.
The processing procedure of electricity wettable layer 134 then is to form a plurality of little cups 131 earlier, and wherein each little cup 131 all is positioned at the top of its pairing second pixel electrode 136.Then, in each little cup 131, insert printing opacity solution 133 and staining solution 135.In the present embodiment, printing opacity solution 133 for example is water, and 135 of staining solutions for example are printing ink, and it can insert in each little cup 131 through the mode of ink jet printing, and the color of staining solution 135 then can be black or colour (as red, green or blue).
Please with reference to Fig. 4 D; On above-mentioned formed electrophoretic display unit 120 and electric moistening pixel cell 130, form light transmission protective layer 140; And in the non-display area 116 of flexible substrate 110, form driving circuit 150; Again glass baseplate 101 is separated with flexible substrate 110 afterwards, promptly roughly accomplish the processing procedure of pliability display base plate 100.Wherein, the method that glass baseplate 101 is separated with flexible substrate 110 for example is a laser lift-off, just with laser radiation glass baseplate 101, so that it separates with flexible substrate 110.
What deserves to be mentioned is; For electrophoresis layer 124 and electric wettable layer 134 are sealed between flexible substrate 110 and the light transmission protective layer 140; Generally still can after forming light transmission protective layer 140, form edge colloid 170 at the non-display area 116 of flexible substrate 110 and the intersection of first viewing area 112 and second viewing area 114.
In addition; If the charged particle 129 of formed electrophoresis layer 124 is black or white in Fig. 4 C; And the staining solution in the electric wettable layer 134 135 is a dark solution; Then can be before forming light transmission protective layer 140, prior to forming colored filter 160 as shown in Figure 1 on electrophoresis layer 124 and the electric wettable layer 134, so that made flexible display panel can show the colour picture of full gamut.
In sum; Because flexible display panel of the present invention has electrophoretic display unit and electric moistening pixel cell simultaneously; Therefore the bistable characteristic of electrophoresis layer tool capable of using shows tableaux (like literal), and the characteristic of utilizing electric wettable layer can change show state rapidly shows dynamic menu (like film or animation etc.).In other words, flexible display panel of the present invention can have power saving simultaneously and can show the effect of dynamic menu.
And; In the processing procedure of flexible display panel of the present invention; The process compatibility of electrophoretic display unit and electric moistening pixel cell is high; The most assemblies or the rete that is to say electrophoretic display unit and electric moistening pixel cell all can be accomplished at same processing procedure, so the processing procedure cost hardly differs with convention electrophoretic display panel or Electrowetting display panel in fact.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be not break away from technical scheme content of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (7)
1. flexible display panel is characterized in that it comprises:
One flexible substrate has one first viewing area, one second viewing area and a non-display area;
A plurality of electrophoretic display unit is disposed in this first viewing area of this flexible substrate, and each electrophoretic display unit comprises:
One first reflection horizon;
One electrophoresis layer has a plurality of charged particles, and this electrophoresis layer is disposed at this top, first reflection horizon;
One first pixel electrode is disposed between this first reflection horizon and this electrophoresis layer; And
One the first film transistor is electrically connected at this first pixel electrode;
The moistening pixel cell of a plurality of electricity is disposed in this second viewing area of this flexible substrate, and each electric moistening pixel cell comprises:
One second reflection horizon;
One electric wettable layer is disposed at this top, second reflection horizon, and should the electricity wettable layer comprises:
One little cup;
One printing opacity solution is annotated in this little cup, and this printing opacity solution tool electric conductivity or polarity;
One staining solution is annotated in this little cup, and this staining solution is immiscible with this printing opacity solution, and is positioned at below this printing opacity solution;
One second pixel electrode is disposed between this second reflection horizon and this little cup; And
One second thin film transistor (TFT) is electrically connected at this second pixel electrode;
One light transmission protective layer is disposed on those electrophoretic display unit and those the electric moistening pixel cells; And
One drive circuit is disposed in this non-display area of this flexible substrate, and wherein said electrophoretic display unit and the moistening pixel cell of said electricity are electrically connected to this driving circuit respectively.
2. flexible display panel according to claim 1 is characterized in that described electrophoresis layer is little cup type electrophoresis layer or capsule-type electrophoresis layer.
3. flexible display panel according to claim 1 is characterized in that it also comprises a colored filter, be disposed at this light transmission protective layer and this electrophoretic display unit and should the moistening pixel cell of electricity between.
4. the manufacturing approach of a flexible display panel is characterized in that it comprises:
On a glass baseplate, form a flexible substrate, wherein this flexible substrate has one first viewing area, one second viewing area and a non-display area;
In this first viewing area of this flexible substrate, form a plurality of electrophoretic display unit;
In this second viewing area of this flexible substrate, form the moistening pixel cell of a plurality of electricity;
Form a light transmission protective layer, to cover these electrophoretic display unit and these electric moistening pixel cells;
In this non-display area of this flexible substrate, form one drive circuit, wherein this driving circuit is to be electrically connected to these electrophoretic display unit and these electric moistening pixel cells; And
Separate this glass baseplate and this flexible substrate;
The step that wherein forms said electrophoretic display unit and the moistening pixel cell of said electricity comprises:
On this flexible substrate, form a plurality of the first film transistors, one first reflection horizon, a plurality of second thin film transistor (TFT) and one second reflection horizon; Wherein this first reflection horizon of these the first film transistor AND gates is positioned at this first viewing area, and these second thin film transistor (TFT)s and this second reflection horizon are positioned at this second viewing area;
On this flexible substrate, form a plurality of first pixel electrodes and a plurality of second pixel electrode; Wherein these first pixel electrodes are to be positioned at this top, first reflection horizon; And respectively this first film transistor is electrically connected to this corresponding first pixel electrode; And these second pixel electrodes are positioned at this top, second reflection horizon, and respectively this second thin film transistor (TFT) is electrically connected to this corresponding second pixel electrode;
Above these first pixel electrodes, form and have an electrophoresis layer of a plurality of charged particles;
Respectively forming an electric wettable layer above this second pixel electrode, comprising:
Form a little cup; And
Respectively inserting a printing opacity solution and a staining solution in this little cup, wherein this printing opacity solution tool electric conductivity or polarity, and this staining solution and this printing opacity solution are immiscible, and be positioned at below this printing opacity solution.
5. the manufacturing approach of flexible display panel according to claim 4 is characterized in that described electrophoresis layer is little cup type electrophoresis layer or microcapsules formula electrophoresis layer.
6. the manufacturing approach of flexible display panel according to claim 4, it is characterized in that wherein inserting respectively should the electricity wettable layer this printing opacity solution and the method for this staining solution comprise:
In this little cup, insert printing ink with the ink-jet processing procedure as this staining solution; And
In this little cup, insert water as this printing opacity solution.
7. the manufacturing approach of flexible display panel according to claim 4 is characterized in that wherein before forming this light transmission protective layer, also being included in this electrophoretic display unit and should forming a colored filter on the moistening pixel cell of electricity.
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| CN101697256A (en) * | 2009-10-23 | 2010-04-21 | 深圳华为通信技术有限公司 | Electronic equipment and display method thereof |
| JP5527129B2 (en) * | 2010-09-16 | 2014-06-18 | セイコーエプソン株式会社 | Electrophoretic display device, electrophoretic display device driving method, and electronic apparatus |
| WO2012175346A1 (en) * | 2011-06-24 | 2012-12-27 | Samsung LCD Netherlands R & D Center B.V | Electrowetting display device |
| GB201116093D0 (en) | 2011-09-16 | 2011-11-02 | Samsung Lcd Nl R & D Ct Bv | Display device |
| TWI485846B (en) * | 2011-11-16 | 2015-05-21 | Au Optronics Corp | Display device with flexible substrate and manufacturing method thereof |
| CN102522420A (en) * | 2011-11-16 | 2012-06-27 | 友达光电股份有限公司 | Display device with flexible substrate and manufacturing method thereof |
| TWI492436B (en) * | 2012-11-16 | 2015-07-11 | Au Optronics Corp | Flexible display panel |
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| TWI485430B (en) * | 2013-10-29 | 2015-05-21 | Au Optronics Corp | Electrowetting display device |
| CN111258054A (en) * | 2020-03-30 | 2020-06-09 | 深圳市华星光电半导体显示技术有限公司 | Quantum dot display device and manufacturing method thereof |
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| JP特开2006-267977A 2006.10.05 |
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