CN108873551A - A kind of display panel, display device and preparation method - Google Patents
A kind of display panel, display device and preparation method Download PDFInfo
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- CN108873551A CN108873551A CN201810688230.XA CN201810688230A CN108873551A CN 108873551 A CN108873551 A CN 108873551A CN 201810688230 A CN201810688230 A CN 201810688230A CN 108873551 A CN108873551 A CN 108873551A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
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- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The embodiment of the invention discloses a kind of display panels, including first substrate, the second substrate and display function layer；The side that the second substrate closes on first substrate is provided with microstructured layers；The side that microstructured layers close on first substrate is covered with public electrode, public electrode and micro-structure surface undulation having the same；Common voltage is applied on public electrode；The side that first substrate closes on the second substrate is provided with multiple pixel electrodes；When pixel electrode applies first voltage, light is totally reflected between display function layer after microstructured layers and public electrode；When pixel electrode applies second voltage, light is incident to display function layer after microstructured layers and public electrode, is absorbed by display function layer；First voltage and the difference of common voltage and second voltage are opposite with the electric difference polarity of common voltage.The embodiment of the present invention can reduce the display response time of display panel.
Description
Technical field
The present embodiments relate to display technology more particularly to a kind of display panels, display device and preparation method.
Background technique
Electronic Paper is with the soft display effect of its lower energy consumption and similar paper and before can substituting paper
Scape is expected, the nowadays welcome increasingly by market, and the static state that outstanding retention performance is very suitable for text reading one kind is aobvious
Show product.
The basic principle of Electronic Paper is be covered with the microcapsules perhaps each microcapsules of micro-cup or micro-cup in electrophoresis layer straight
Diameter is about 40 microns.In these microcapsules or micro-cup, includes also white particle and black particle, be respectively provided with positive charge
And negative electrical charge, these tiny particles can long-term suspension in the liquid in microcapsules or micro-cup.By controlling in TFT side
Alive time and height are applied on the pixel electrode of substrate, adjust the particle rate travel in electrophoresis microcapsule or micro-cup
And distance, allow Electronic Paper that there is certain expressing gradation ability.
But the electrophoresis layer at present in Electronic Paper is thicker, simultaneously because material property reason, leads to the entire response time
Long, about 300ms or so is difficult to realize Dynamically Announce.
Summary of the invention
The present invention provides a kind of display panel, display device and preparation method, when display response to reduce display panel
Between.
In a first aspect, the embodiment of the invention provides a kind of display panels, including：
First substrate, the second substrate being oppositely arranged with the first substrate and setting are in the first substrate and described
Display function layer between the second substrate；
The side that the second substrate closes on the first substrate is provided with microstructured layers；The microstructured layers close on described
The side of first substrate is covered with public electrode, the public electrode and micro-structure surface undulation having the same；It is described
Common voltage is applied on public electrode；The side that the first substrate closes on the second substrate is provided with multiple pixel electricity
Pole；
When the pixel electrode applies first voltage, light after the microstructured layers and the public electrode with it is described
It is totally reflected between display function layer；When the pixel electrode applies second voltage, light is through the microstructured layers and institute
It is incident to the display function layer after stating public electrode, is absorbed by the display function layer；
Wherein, the first voltage and the difference of the common voltage and the electricity of the second voltage and the common voltage
Difference polarity is opposite.
Second aspect, the embodiment of the invention also provides a kind of display device, the display device includes the present invention first
Display panel described in aspect.
The third aspect, the present invention also provides a kind of preparation method of display panel, the method includes：
First substrate is provided；
Multiple pixel electrodes are formed on the first substrate；
The second substrate is provided；
Microstructured layers are formed on the second substrate；
Public electrode is formed on the microstructured layers；The public electrode and micro-structure surface having the same are risen
Volt；Common voltage is applied on the public electrode；
Display function layer is formed between the first substrate and the second substrate, and box is encapsulated；
Wherein, when the pixel electrode applies first voltage, light is after the microstructured layers and the public electrode
It is totally reflected between the display function layer；When the pixel electrode applies second voltage, light is through the microstructured layers
And the display function layer is incident to after the public electrode, it is absorbed by the display function layer；The first voltage and institute
Difference and the second voltage for stating common voltage are opposite with the electric difference polarity of the common voltage.
Microstructured layers are arranged by closing on the side of first substrate in the second substrate in the embodiment of the present invention, make on public electrode
Apply common voltage, pixel electrode when applying first voltage, light after microstructured layers and public electrode with display function
It is totally reflected between layer；Apply common voltage on public electrode, for pixel electrode when applying second voltage, light is through micro-structure
It is incident to display function layer after layer and public electrode, is absorbed by display function layer；Wherein, the difference of first voltage and common voltage
Value and second voltage are opposite with the electric difference polarity of common voltage.The present invention is existed without using traditional electrocoating film by light
Reflection or absorption between micro-structure and display function layer realize that the image of display panel is shown, significantly reduce what picture was shown
The corresponding time.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 3 is the overlooking structure diagram of another display panel provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of the section structure of the AA line in Fig. 3；
Fig. 5 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 8 is the enlarged drawing of support column and interface catoptric arrangement；
Fig. 9 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Figure 10 is the enlarged drawing of another support column provided in an embodiment of the present invention；
Figure 11 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention；
Figure 12 is the flow diagram of the preparation method of display panel provided in an embodiment of the present invention；
Figure 13-Figure 15 is the corresponding the schematic diagram of the section structure of part steps in Figure 12；
Figure 16 is the flow diagram of the preparation method of another display panel provided in an embodiment of the present invention；
Figure 17 is the flow diagram of the preparation method of another display panel provided in an embodiment of the present invention；
Figure 18 is the flow diagram of the preparation method of another display panel provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
A kind of display panel is present embodiments provided, Fig. 1 is a kind of structure of display panel provided in an embodiment of the present invention
Schematic diagram, with reference to Fig. 1, the display panel includes：First substrate 10, the second substrate 20 being oppositely arranged with first substrate 10 with
And the display function layer 30 between first substrate 10 and the second substrate 20 is set.The second substrate 20 closes on the one of first substrate 10
Side is provided with microstructured layers 21.The side that microstructured layers 21 close on first substrate 10 is covered with public electrode 22, public electrode 22
With the surface undulation having the same of microstructured layers 21.The side that first substrate 10 closes on the second substrate 20 is provided with multiple pixel electricity
Pole 11.Display panel at work, is applied with common voltage Vcom on public electrode 22, pixel electricity is applied on pixel electrode 11
Pressure.The pixel unit that 11 place of pixel electrode is controlled by applying different pixel voltages on pixel electrode 11 shows face
Color.When pixel electrode 11 apply first voltage V1 when, light after microstructured layers 21 and public electrode 22 with display function layer
Total reflection occurs between 30, and (thickness of public electrode 22 can be ignored at this time.When pixel electrode 11 applies second voltage V2, light
Display function layer 30 (thickness of public electrode 22 can be ignored at this time) is incident to after microstructured layers 21 and public electrode 22,
It is absorbed by display function layer 30.Wherein, the difference U1 and second voltage V2 and common electrical of first voltage V1 and common voltage Vcom
Press the electric difference U2 polarity of Vcom on the contrary, i.e. U1=-U2.
The pixel unit being applied with where the pixel electrode of first voltage V1, since light is through microstructured layers 21 and public
It is totally reflected between display function layer 30 after electrode 22, so at this point, the pixel unit is displayed in white.It is applied with the second electricity
The pixel unit where the pixel electrode of V2 is pressed, since light is incident to display function after microstructured layers 21 and public electrode 22
Ergosphere 30 is absorbed by display function layer 30, so at this point, the pixel unit shows black.
The present invention passes through reflection or absorption of the light between micro-structure 21 and display function layer 30 and realizes display panel
Image is shown, without using traditional electrocoating film, therefore can solve the shifting of the particle in microcapsules in the prior art or micro-cup
Dynamic rate is slow and electrophoresis film thickness causes greatly display to respond slow problem.
It should be noted that transistor array is also provided between first substrate 10 and pixel electrode 11, each picture
Plain electrode 11 is electrically connected with a transistor 13, controls the voltage on input pixel electrode 11 by transistor 13.Transistor array
For driving each pixel unit normal luminous of display device that shape known in the art can be used to realize display function
Transistor array is formed at technique, details are not described herein.
Above-mentioned first substrate and the second substrate can be rigidity or flexibility, wherein the second substrate need to be transparent substrate, with
Guarantee that ambient can be incident in display panel.First substrate and the second substrate can using glass, quartz, metal or
High molecule plastic material.The embodiment of the present invention to the material of first substrate and the second substrate without limitation.
On the basis of the above embodiments, optionally, with continued reference to Fig. 1, display function layer 30 may include liquid crystal 31 with
And it is attached to the black particles 32 of 31 one end of liquid crystal.It should be noted that the liquid crystal 31 in the embodiment of the present invention can be positivity
Liquid crystal is also possible to negative liquid crystal.Such as liquid crystal 31 is positivity liquid crystal, black particles 32 are negatively charged, are being attached to liquid crystal long axis just
Polarity one end.With the common voltage Vcom=0 applied on public electrode, first voltage V1=-5V；Second voltage V2=5V is
Example, then the difference U1=-5V of first voltage V1 and common voltage Vcom；The electric difference of second voltage V2 and common voltage Vcom
U2=5V.When pixel electrode applies first voltage V1=-5V, in the work for the electric field that pixel electrode 11 and public electrode 22 generate
Under, 31 one end of liquid crystal for being attached with black particles 32 is rotated to the side close to pixel electrode 11.Light is through microstructured layers 21
And be totally reflected between liquid crystal 31 after public electrode 22, the pixel unit where the pixel electrode 11 is displayed in white.When
When pixel electrode applies second voltage V2=5V, under the action of the electric field that pixel electrode 11 and public electrode 22 generate, attachment
There is 31 one end of liquid crystal of black particles 32 to rotate to the side close to public electrode 22.Light is through microstructured layers 21 and common electrical
It is incident to display function layer 30 behind pole 22, is absorbed by black particles 32, the pixel unit where the pixel electrode 11 shows black.
It should be noted that above-described embodiment, which is merely exemplary setting liquid crystal 31, can be positivity liquid crystal, black particles
32 is negatively charged, is attached to positive polarity one end of liquid crystal long axis.In other embodiments, positivity liquid crystal, black can also be used
Particle 32 is positively charged, is attached to negative polarity one end of liquid crystal long axis.At this point, when pixel electrode applies first voltage V1=-5V,
Under the action of the electric field that pixel electrode 11 and public electrode 22 generate, be attached with black particles 32 31 one end of liquid crystal rotate to
Close to the side of public electrode 22.Light is incident to display function layer 30 after microstructured layers 21 and public electrode 22, by black
Colored particle 32 absorbs, and the pixel unit where the pixel electrode 11 shows black.When pixel electrode applies second voltage V2=5V
When, under the action of the electric field that pixel electrode 11 and public electrode 22 generate, it is attached with 31 one end of liquid crystal rotation of black particles 32
It goes to close to the side of pixel electrode 11.Light is all-trans between liquid crystal 31 after microstructured layers 21 and public electrode 22
It penetrates, the pixel unit where the pixel electrode 11 is displayed in white.
Liquid crystal 31 can also be negative liquid crystal in the present invention, and black particles 32 are negatively charged, be attached to the anode of liquid crystal short axle
Property one end.Alternatively, liquid crystal 31 is negative liquid crystal, black particles 32 are positively charged, are attached to negative polarity one end of liquid crystal short axle.In fact
The principles illustrated when principle of existing black or white displays can be found in positivity liquid crystal is derived, and details are not described herein again.
The numerical values recited of common voltage and first voltage and second voltage is only example, this field in above-described embodiment
Technical staff can distinguish setting according to the setting demand of display panel.
The display function layer 30 of the embodiment of the present invention includes liquid crystal 31 and black particles 32, and liquid crystal 31 is as display panel
Driving uses so that the response speed of display panel is consistent with the response speed of liquid crystal, not by traditional electrophoresis film thickness and
The influence of particle rate travel in microcapsules or micro-cup, to improve the response speed of display panel.Further, since black
Colored particle 32 is influenced by the electric field that the distribution of charges and pixel electrode 11 and public electrode 22 of liquid crystal 31 generate simultaneously, therefore
Black particles 32 can be to avoid polarization phenomena be generated, so the embodiment of the present invention can also improve during working long hours
The display quality and raising display life of display panel.
On the basis of the various embodiments described above, optionally, the refractive index that black particles 32 can be set is greater than microstructured layers
21 refractive index；The refractive index of microstructured layers 21 is greater than the refractive index of liquid crystal.When 31 one end of liquid crystal for being attached with black particles 32
When rotating to close to the side of public electrode 22, optically denser medium, light quilt is presented in the display function layer 30 of 21 lower section of microstructured layers
It absorbs, shows black.Be attached with black particles 32 31 one end of liquid crystal rotate to close to pixel electrode 11 side when, micro-structure
Optically thinner medium is presented in the display function layer 30 of 21 lower section of layer, and light is reflected, is displayed in white.
Optionally, the display function layer of display panel provided by the invention may include ink and black particles.Fig. 2 is
The structural schematic diagram of another display panel provided in an embodiment of the present invention, as shown in Fig. 2, the display function layer packet of display panel
Include ink 33 and black particles 32.Black particles 32 have micro- electricity, can be positive electricity and are also possible to negative electricity.Public electrode 22
And when 11 no applied voltage of pixel electrode, black particles 32 are evenly distributed in ink 33.With black particles 32 with positive
Micro- electricity, the common voltage Vcom=0, first voltage V1=-5V applied on public electrode；For second voltage V2=5V, that
The difference U1=-5V of first voltage V1 and common voltage Vcom；The electric difference U2=of second voltage V2 and common voltage Vcom
5V.When pixel electrode applies second voltage V2=5V, under the action of the electric field that pixel electrode 11 and public electrode 22 generate,
Black particles 32 are moved towards public electrode 22, are moved near public electrode 22, light is through microstructured layers 21 and public affairs at this time
It is incident to display function layer 30 after common electrode 22, is absorbed by black particles 32, the pixel unit where the pixel electrode 11 is shown
Black.When pixel electrode 11 applies first voltage V1=-5V, in the work for the electric field that pixel electrode 11 and public electrode 22 generate
Under, black particles 32 towards pixel electrode 11 move, move near pixel electrode 11, at this time light through microstructured layers 21 with
And be totally reflected between ink 33 after public electrode 22, the pixel unit where the pixel electrode 11 is displayed in white.
The embodiment of the present invention replaces electrocoating film in the prior art using ink 33 and black particles 32, thus avoid compared with
Large-sized microcapsules or micro-cup influence the thickness of display function layer 30, the thickness example of display function of embodiment of the present invention layer 30
It such as can achieve 5u-15um, significantly less than the thickness of about 30um electrocoating film in the prior art, therefore can reduce black particles 32
Moving distance, and then reduce display panel response time.And far smaller than microcapsules or the micro-cup of black particles 32
The size of middle charged particle, under by identical electric field conditions, black particles 32 reach pixel electrode 11 or public electrode
22 time is smaller, so as to further decrease out the response time.
Optionally, the refractive index of black particles 32 is greater than the refractive index of microstructured layers 21；The refractive index of microstructured layers 21 is big
In the refractive index of ink 33.When black particles 32 are moved to close to the side of public electrode 22,21 lower section of microstructured layers is shown
Show that optically denser medium is presented in functional layer 30, light is absorbed, and shows black.When black particles 32 are moved to close to pixel electrode 11
When side, optically thinner medium is presented in the display function layer 30 of 21 lower section of microstructured layers, and light is reflected, is displayed in white.To avoid showing
Show that 33 extinction of ink in functional layer 30 impacts display, the embodiment of the present invention can select transparent ink, such as hydrocarbon
Oil etc..
On the basis of the various embodiments described above, optionally, microstructured layers 21 include multiple raised structures, and bulge-structure can be with
Hemispherical, coniform or pyramid-shaped.The raised structures that microstructured layers 21 are illustratively arranged in Fig. 1 and Fig. 2 are hemispherical.Hemisphere
Shape, coniform or pyramid-shaped raised structures are high to the reflectivity of light, and more light may be implemented and assemble after being totally reflected
In the viewing visual angle (centre visual angle) of viewer.
On the basis of the various embodiments described above, optionally, display panel provided by the invention further includes being located at first substrate
Support column between the second substrate, support column is grid-shaped, and latticed support column limits multiple pixel units, shows
Show multiple pixel units between functional layer filling support column.Fig. 3 is another display panel provided in an embodiment of the present invention
Overlooking structure diagram, Fig. 4 is the schematic diagram of the section structure of the AA line in Fig. 3, in conjunction with shown in Fig. 3 and Fig. 4, with display function
For layer 30 includes the structures of liquid crystal 31 and black particles 32, support column 41 between first substrate 10 and the second substrate 20,
Latticed support column 41 limits multiple pixel units 50；Display function layer 30 fills multiple pixel lists between support column 41
Member 50.Support column 41 plays the role of supporting first substrate 10 and the second substrate 20, avoids the flowing of display function layer 30, makes to show
Show that function 30 can be uniformly distributed between first substrate 10 and the second substrate 20, avoids generating distribution not in the case of external compression
Equal situation.If furthermore the electric field of two adjacent pixel units is different, can be generated between two adjacent pixel units lateral
Electric field, the lateral electric fields will lead to black particles 32 and assemble unevenness, and the support column 41 of setting of the embodiment of the present invention can also avoid
Black particles 32 assemble uneven problem.
Optionally, the refractive index that support column 41 can also be arranged is less than the refractive index of microstructured layers 21.Since Electronic Paper is aobvious
Show that usually white background, black font are shown.The support column material for selecting low-refraction, can be improved 41 location of support column
The reflectivity of the light in domain, and then white background brightness is improved, increase black white contrast of the display panel in display pattern.
Optionally, display panel provided in an embodiment of the present invention can also include colored color blocking layer, by taking Fig. 4 as an example, referring to
Fig. 4, by colored color blocking layer 23 being arranged between the second substrate 20 and microstructured layers 21 to obtain the function of colored display.According to
The image-forming principle of three primary colours, such as can be set up separately using red color resistance, green color blocking and blue color blocking in three pixel units
Region and constitute a pixel group, to realize the display of multiple color.
Optionally, display panel can also include black matrix", upright projection covering of the black matrix" in the second substrate
Upright projection of the support column in the second substrate.Fig. 5 is the structural representation of another display panel provided in an embodiment of the present invention
Figure.Referring to Fig. 5, display panel further includes black matrix" 42, and upright projection of the black matrix" 42 in the second substrate 20 covers branch
Upright projection of the dagger 41 in the second substrate 20.Since 41 region of support column is not filled with display function layer 30, not by
Electric field controls caused by public electrode 22 and pixel electrode 11, therefore in order to avoid being impacted to display, the present invention is implemented
Black matrix" 42 is arranged in example above support column 41, makes upright projection covering support column of the black matrix" 42 in the second substrate 20
41 upright projection in the second substrate 20.
In addition, black matrix" 42 can also cover the periphery non-display area 40 of display panel.Periphery non-display area 40 is arranged
There is glue frame 43, conducting sphere 44 is provided in glue frame 43, by conducting sphere 44 by the public electrode 22 and first in the second substrate 20
Route 45 on substrate 10 connects.In addition, glue frame 43 is additionally provided with the Si ball 46 with supporting role, Si ball 46 is in glue frame 43
It plays a supporting role in solidification process.
Fig. 6 is the structural schematic diagram of another display panel provided in an embodiment of the present invention, as shown in fig. 6, the present invention is real
The display panel for applying example offer further includes between support column 41 and public electrode 22 and covering support column 41 closes on the second base
The reflectance coating 47 of 20 one end of plate.The reflectance coating 47 can reflect the light for being incident to 41 region of support column, so as to
It realizes higher reflectivity, further increases white background brightness.
Optionally, the refractive index of reflectance coating 47 is less than the refractive index of microstructured layers 21；The refractive index of reflectance coating 47 is less than branch
The refractive index of dagger 41；The refractive index of microstructured layers 21 is less than the refractive index of support column 41.The setting of above-mentioned refractive index can make
The non-region by electric field controls where obtaining support column 41 becomes light and is totally reflected state, further increases the reflection in the region
Rate.
Optionally, support column 41 can be photoresist.The support of setting figure can be only formed by exposure development
Etch step is omitted in column, saves manufacturing process, and avoids damage when etching support column to other film layers.
Fig. 7 is the structural schematic diagram of another display panel provided in an embodiment of the present invention, as shown in fig. 7, microstructured layers
21 do not overlap with support column 41；Display panel further includes interface catoptric arrangement 48；Interface catoptric arrangement 47 is located at support column 41 and faces
The side of nearly first substrate 10, support column 41 is interior or the side of the second substrate 20 is closed on positioned at support column 41.Fig. 7 is illustrative
Interface catoptric arrangement 48 is set to the side that support column 41 closes on first substrate 10.After light is incident on interface catoptric arrangement 48
Reflex to 50 region of pixel unit.The embodiment of the present invention by interface catoptric arrangement 48 by 41 region of support column not
Controlled light reflexes to 50 region of pixel unit, improves the reflectivity of entire display panel.And pixel unit
50 can be more black when showing black, can be whiter when being displayed in white, and improves and displays contrast.
Optionally, the included angle A on surface of the interface catoptric arrangement 48 far from first substrate 10 and 10 place plane of first substrate
Meet：Wherein S is the diameter of support column 41, and h is the height of support column 41.Fig. 8 is that support column and interface are reflected
The enlarged drawing of structure is overlapped as shown in figure 8, can be equal to the bottom surface approximation of interface catoptric arrangement with support column bottom surface, in Fig. 8
Angle A is approximately equal to angle X, and the light for being incident on 41 region of support column reflects back reflection to support column through interface catoptric arrangement 48
50 region of pixel unit other than 41 is tied if the A too small light for being incident on 41 region of support column in angle is reflected through interface
Structure 48 still reflexes to support column 41 in region after reflecting, therefore the embodiment of the present invention is arranged
It should be noted that interface catoptric arrangement 48 can be set in the embodiment of the present invention in pyramid-shaped.Setting can in this way
So that the light for being incident to 41 region of support column reflexes to branch by the side of the interface catoptric arrangement 48 of pyramid-shaped respectively
More light are reflexed to electric field zone of control, improve light reflectance by 50 region of pixel unit other than dagger 41.
It in other embodiments can also be according to the shape of the actual demand set interface catoptric arrangement of display panel.
The refractive index of optional interface catoptric arrangement 48 is greater than the refractive index of microstructured layers 21, and interface catoptric arrangement 48
Refractive index is greater than the refractive index of support column 41.The setting of above-mentioned refractive index can make light in interface catoptric arrangement 48 far from
The surface of one substrate 10 is totally reflected, and light is incident on 48 back reflection of interface catoptric arrangement to 50 region of pixel unit,
Improve the reflectivity in the region.
In the present embodiment, interface catoptric arrangement 48 can use metal material.The material of interface catoptric arrangement 48 for example may be used
To use the source-drain electrode or the identical material of grid that prepare thin film transistor (TFT).
Fig. 9 is the structural schematic diagram of another display panel provided in an embodiment of the present invention, and referring to Fig. 9, support column 41 faces
One side surface of nearly the second substrate 20 and 20 place plane of the second substrate are in setting included angle B；So that light is incident on support column 41
A side surface back reflection of the second substrate 20 is closed on to 50 region of pixel unit.The embodiment of the invention provides another will
The light of 41 region of support column reflexes to the implementation of pixel unit region.The embodiment of the present invention can be in not volume
In the case where outer increase other component and film layer, setting support column 41 closes on a side surface and the second substrate of the second substrate 20
The uncontrolled light of 41 region of support column is reflexed to pixel unit in setting included angle B, to realize by 20 place planes
50 regions, improve and display contrast.
Optionally, setting included angle B meets：Wherein S is the diameter of the support column, and d is the support column
Maximum distance between surface and public electrode far from the first substrate.Figure 10 be it is provided in an embodiment of the present invention another
The enlarged drawing of support column is incident on the light of 41 region of support column through support column 41 far from first substrate as shown in Figure 10
Support column 41 is incident on if angle C is too small in 50 region of pixel unit other than 10 surface reflection back reflection to support column 41
The light of region still reflexes to support column 41 in region after support column 41 is far from the surface reflection of first substrate 10,
Therefore setting of the embodiment of the present invention
Optionally, in the various embodiments described above, the thickness range of display function layer 30 can be set to 5-15um, significantly less than
The thickness of about 30um electrocoating film in the prior art.Therefore, the embodiment of the present invention can also realize the lightening of display panel.
The embodiment of the present invention also provides a kind of display device, and Figure 11 is a kind of display device provided in an embodiment of the present invention
Structural schematic diagram, as shown in figure 11, display device provided in an embodiment of the present invention include display surface described in the various embodiments described above
Plate 100.Therefore display device provided in an embodiment of the present invention also has beneficial effect described in above-described embodiment, herein not
It repeats again.
The embodiment of the present invention also provides a kind of preparation method of display panel, can be applied to prepare any of the above-described embodiment
The display panel of offer.Figure 12 is the flow diagram of the preparation method of display panel provided in an embodiment of the present invention, Figure 13-figure
15 be the corresponding the schematic diagram of the section structure of part steps in Figure 12.As shown in figure 12, the preparation method of the display panel includes：
S110, first substrate is provided.
S120, multiple pixel electrodes are formed on the first substrate.
Referring to Figure 13, the film layers such as transistor array, each pixel electrode 11 and one can also be formed on first substrate 10
Transistor 13 is electrically connected, and controls the voltage on input pixel electrode 11 by transistor 13.Transistor array is for driving display
Each pixel unit normal luminous of device, to realize display function.Specifically, transistor array may include along far from the
Grid layer, gate insulating layer, active layer and the source-drain electrode layer that the direction of one substrate 10 stacks gradually.In this step, it can adopt
The film layers such as transistor array are formed with formation process known in the art, details are not described herein.
S130, the second substrate is provided.
S140, microstructured layers are formed in the second substrate.
Referring to Figure 14, optionally, to realize colored display, can also be formed in the second substrate 20 in step S140 micro-
Colored color blocking layer 23 is formed before structure sheaf 21.Microstructured layers 21 are at least formed at the viewing area of the second substrate 20, i.e. display surface
The region of image is shown in plate.The formation of microstructured layers 21 for example can be physically or chemically deposition method, can also be spin coating
Solidify, inkjet printing also or be transfer method, the embodiment of the present invention to the generation types of microstructured layers without limitation.
S150, public electrode is formed on microstructured layers；Public electrode and microstructured layers surface undulation having the same.
Referring to Figure 15, compared to 21 thickness of the second substrate 20 and microstructured layers, the thickness of public electrode 22 is very small, because
This is formed in public electrode 22 and micro-structure surface undulation having the same on microstructured layers 21.Wherein, on public electrode 22
It is applied with common voltage.
S160, display function layer is formed between first substrate and the second substrate, and box is encapsulated.
Fig. 1 may refer to the structure of the display panel after box encapsulation.Wherein, display function layer 30 can be in the first base
Plate 10 and the second substrate 20 are irrigated after encapsulating, and are also possible to coat display function on first substrate 10 or the second substrate 20
After layer 30, encapsulate box, the embodiment of the present invention is not specifically limited the sequence of above-mentioned encapsulation.Figure 12 illustratively exists
Step 120 is formed on the first substrate after multiple pixel electrodes, and step 121, coating glue frame are executed.I.e. in 10 side of first substrate
Glue frame is coated, then forms display function layer 30 between first substrate 10 and the second substrate 20 again, and encapsulate to box.
When display panel work, and when pixel electrode 11 applies first voltage, light is through microstructured layers 21 and public
It is totally reflected between display function layer 30 after electrode 22, the pixel unit being applied with where the pixel electrode 11 of first voltage
It is displayed in white；When pixel electrode 11 applies second voltage, light is incident to aobvious after microstructured layers 21 and public electrode 22
Show functional layer 30, absorbed by display function layer 30, the pixel unit where being applied with the pixel electrode 11 of second voltage shows black
Color；First voltage and the difference of common voltage and second voltage are opposite with the electric difference polarity of common voltage.
The present invention passes through reflection or absorption of the light between micro-structure 21 and display function layer 30 and realizes display panel
Image is shown, without using traditional electrocoating film, therefore can solve the shifting of the particle in microcapsules in the prior art or micro-cup
Dynamic rate is slow and electrophoresis film thickness causes greatly display to respond slow problem.
Optionally, after step S150 forms public electrode on microstructured layers, or in step S120 in the first base
Multiple pixel electrodes are formed on plate can also include later：
S151, support column is formed.
Top view after formation support column see, for example, Fig. 3.Wherein, support column 41 is grid-shaped, latticed branch
Dagger 41 limits multiple pixel units 50.Display function layer 30 fills multiple pixel units 50 between support column 41.Figure 12
Illustratively, step can also be executed after step S120 in other embodiments by executing step S151 after step s 150
Rapid S151, i.e. support column 41 can be formed in 10 side of first substrate or be formed in 20 side of the second substrate, the embodiment of the present invention
It does not limit this.
Optionally, before step S140 forms microstructured layers in the second substrate, can also include：
S141, black matrix" is formed.
Since 41 region of support column is not filled with display function layer 30, not by 11 institute of public electrode 22 and pixel electrode
The electric field controls of generation, therefore in order to avoid being impacted to display, referring to Fig. 5, the embodiment of the present invention can be in support column 41
Black matrix" 42 is arranged in top, makes upright projection covering support column 41 of the black matrix" 42 in the second substrate 20 in the second substrate
Upright projection on 20.
Figure 16 is the flow diagram of the preparation method of another display panel provided in an embodiment of the present invention, such as Figure 16 institute
Show, after step S150 forms public electrode on microstructured layers, in step S151 before forming support column, can also wrap
It includes：
S152, reflectance coating is formed.
Such as may refer to Fig. 6, reflectance coating is located at support, and between 41 and public electrode 22 and covering support column 41 closes on the
Two substrate one end.The reflectance coating 47 can reflect the light for being incident to 41 region of support column, higher so as to realize
Reflectivity, further increase white background brightness.
Figure 17 is the flow diagram of the preparation method of another display panel provided in an embodiment of the present invention, such as Figure 17 institute
Show, in step S120 after forming multiple pixel electrodes on the first substrate, before step S151 support column or in step
Further include when S151 formation support column：
S153, interface catoptric arrangement is formed.
Light is incident on interface catoptric arrangement back reflection to pixel unit region.
Figure 17 is illustrative, executes step after forming multiple pixel electrodes on the first substrate in step S120
S153.Such as may refer to Fig. 7, microstructured layers 21 are not overlapped with support column 41；Display panel further includes interface catoptric arrangement 48；
Interface catoptric arrangement 48, which is located at support column 41, to be closed on the side of first substrate 10, closes in support column 41 or positioned at support column 41
The side of the second substrate 20.Fig. 7 interface catoptric arrangement 48 is illustratively set to that support column 41 closes on first substrate 10 one
Side.Light is incident on 48 back reflection of interface catoptric arrangement to 50 region of pixel unit.Optionally, interface catoptric arrangement 48 is remote
The included angle A on surface and 10 place plane of first substrate from first substrate 10 meets：Wherein S is support column 41
Diameter, h be support column 41 height.
Figure 18 is the flow diagram of the preparation method of another display panel provided in an embodiment of the present invention, such as Figure 18 institute
Show, further includes after step S120 forms multiple pixel electrodes on the first substrate：
S122, etching support column close on one end of the second substrate so that support column close on a side surface of the second substrate with
Plane where the second substrate is in setting angle；Light is incident on support column and closes on a side surface back reflection of the second substrate to pixel
Unit region.
Such as may refer to Fig. 9, support column 41 closes on a side surface and the 20 place plane of the second substrate of the second substrate 20
In setting included angle B；So that light is incident on support column 41 and closes on a side surface back reflection of the second substrate 20 to pixel unit 50
Region.The embodiment of the present invention can be in the case where additionally not increasing other component and film layer, and setting support column 41 faces
One side surface of nearly the second substrate 20 and 20 place plane of the second substrate are in setting included angle B, to realize 41 location of support column
The uncontrolled light in domain reflexes to 50 region of pixel unit, improves and displays contrast.Optionally, included angle B is set
Meet：Wherein S be the support column diameter, d be surface of the support column 41 far from first substrate 10 with it is public
The distance between electrode 22.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (29)
1. a kind of display panel, which is characterized in that including：
First substrate, the second substrate being oppositely arranged with the first substrate and setting are in the first substrate and described second
Display function layer between substrate；
The side that the second substrate closes on the first substrate is provided with microstructured layers；The microstructured layers close on described first
The side of substrate is covered with public electrode, the public electrode and microstructured layers surface undulation having the same；The public affairs
Common voltage is applied in common electrode；The side that the first substrate closes on the second substrate is provided with multiple pixel electrodes；
When the pixel electrode applies first voltage, light after the microstructured layers and the public electrode with the display
It is totally reflected between functional layer；When the pixel electrode applies second voltage, light is through the microstructured layers and the public affairs
It is incident to the display function layer after common electrode, is absorbed by the display function layer；
Wherein, the first voltage and the difference of the common voltage and the electric difference of the second voltage and the common voltage
Polarity is opposite.
2. display panel according to claim 1, which is characterized in that the display function layer includes liquid crystal and is attached to
The black particles of described liquid crystal one end.
3. display panel according to claim 2, which is characterized in that the refractive index of the black particles is greater than micro- knot
The refractive index of structure layer；The refractive index of the microstructured layers is greater than the refractive index of the liquid crystal.
4. display panel according to claim 1, which is characterized in that the display function layer includes ink and black grain
Son.
5. display panel according to claim 4, which is characterized in that the refractive index of the black particles is greater than micro- knot
The refractive index of structure layer；The refractive index of the microstructured layers is greater than the refractive index of the ink.
6. display panel according to claim 1, which is characterized in that the microstructured layers include multiple raised structures, institute
State that bulge-structure is hemispherical, coniform or pyramid-shaped.
7. display panel according to claim 1, which is characterized in that further include being located at the first substrate and described second
Support column between substrate, the support column is grid-shaped, and the latticed support column limits multiple pixel units；
The display function layer fills multiple pixel units between the support column.
8. display panel according to claim 7, which is characterized in that the display panel further includes black matrix", described
The upright projection of black matrix" on the second substrate covers the upright projection of the support column on the second substrate.
9. display panel according to claim 7, which is characterized in that the refractive index of the support column is less than the micro-structure
The refractive index of layer.
10. display panel according to claim 7, which is characterized in that further include be located at the support column with it is described public
Between electrode and the covering support column closes on the reflectance coating of described the second substrate one end.
11. display panel according to claim 10, which is characterized in that the refractive index of the reflectance coating is less than micro- knot
The refractive index of structure layer；The refractive index of the reflectance coating is less than the refractive index of the support column；The refractive index of the microstructured layers is small
In the refractive index of the support column.
12. display panel according to claim 7, which is characterized in that the support column is photoresist.
13. display panel according to claim 7, which is characterized in that the microstructured layers are not overlapped with the support column；
The display panel further includes interface catoptric arrangement；The interface catoptric arrangement is located at the support column and closes on described first
The side of the second substrate is closed in the side of substrate, the support column or positioned at the support column；Light is incident on institute
Interface catoptric arrangement back reflection is stated to the pixel unit region.
14. display panel according to claim 13, which is characterized in that the interface catoptric arrangement is far from first base
The included angle A of plane meets where the surface of plate and the first substrate：Wherein S is the diameter of the support column,
H is the height of the support column.
15. display panel according to claim 13, which is characterized in that the interface catoptric arrangement is in pyramid-shaped.
16. display panel according to claim 13, which is characterized in that the refractive index of the interface catoptric arrangement is greater than institute
The refractive index of microstructured layers is stated, and the refractive index of the interface catoptric arrangement is greater than the refractive index of the support column.
17. display panel according to claim 16, which is characterized in that the interface catoptric arrangement uses metal material.
18. display panel according to claim 7, which is characterized in that
The support column closes on a side surface of the second substrate and the second substrate place plane is in setting angle；So that
Light is incident on the support column and closes on a side surface back reflection of the second substrate to the pixel unit region.
19. display panel according to claim 18, which is characterized in that
The setting included angle B meets：Wherein S is the diameter of the support column, and d is the support column far from described
Maximum distance between the surface and public electrode of first substrate.
20. display panel according to claim 1, which is characterized in that further include colored color blocking layer, be located at second base
Between plate and the microstructured layers.
21. display panel according to claim 1, which is characterized in that the thickness range of the display function layer is 5-
15um。
22. a kind of display device, which is characterized in that including any display panel of claim 1-21.
23. a kind of preparation method of display panel, which is characterized in that including：
First substrate is provided；
Multiple pixel electrodes are formed on the first substrate；
The second substrate is provided；
Microstructured layers are formed on the second substrate；
Public electrode is formed on the microstructured layers；The public electrode and microstructured layers surface having the same are risen
Volt；Common voltage is applied on the public electrode；
Display function layer is formed between the first substrate and the second substrate, and box is encapsulated；
Wherein, when the pixel electrode applies first voltage, light after the microstructured layers and the public electrode with institute
It states and is totally reflected between display function layer；When the pixel electrode applies second voltage, light through the microstructured layers and
It is incident to the display function layer after the public electrode, is absorbed by the display function layer；The first voltage and the public affairs
The difference of common voltage and the second voltage are opposite with the electric difference polarity of the common voltage.
24. the preparation method of the display panel according to claim 23, which is characterized in that formed on the microstructured layers public
After common electrode, or multiple pixel electrodes are formed on the first substrate and further include later：
Form support column；
Wherein, the support column is grid-shaped, and the latticed support column limits multiple pixel units；The display
Functional layer fills multiple pixel units between the support column.
25. the preparation method of the display panel according to claim 24, which is characterized in that formed on the second substrate micro-
Before structure sheaf, further include：
Form black matrix", black matrix" upright projection on the second substrate covers the support column described the
Upright projection on two substrates.
26. the preparation method of the display panel according to claim 24, which is characterized in that formed on the microstructured layers public
After common electrode, further include before forming support column：
Form reflectance coating；The reflectance coating is between the support column and the public electrode and the covering support column closes on
Described the second substrate one end.
27. the preparation method of the display panel according to claim 24, which is characterized in that formed on the first substrate more
After a pixel electrode, before forming support column, or when forming support column, further include：
Form interface catoptric arrangement；Light is incident on the interface catoptric arrangement back reflection to the pixel unit region.
28. the preparation method of the display panel according to claim 24, which is characterized in that formed on the first substrate more
Further include after a pixel electrode：
One end that the support column closes on the second substrate is etched, so that the support column closes on the side of the second substrate
Plane is in setting angle where surface and the second substrate；Light is incident on one that the support column closes on the second substrate
Side surface back reflection is to the pixel unit region.
29. the preparation method of the display panel according to claim 23, which is characterized in that formed on the second substrate micro-
Further include before structure sheaf：
Form colored color blocking layer.
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