CN104133319B - A kind of display device - Google Patents
A kind of display device Download PDFInfo
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- CN104133319B CN104133319B CN201410339053.6A CN201410339053A CN104133319B CN 104133319 B CN104133319 B CN 104133319B CN 201410339053 A CN201410339053 A CN 201410339053A CN 104133319 B CN104133319 B CN 104133319B
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Abstract
The present invention relates to display technology field, a kind of display device is disclosed.The display device is provided with control panel in the side that backlight module emits beam, wherein, control panel includes the pixel cell position one-to-one corresponding of multiple control units, described control unit and display panel, and described control unit includes printing opacity and light tight two kinds of working conditions.By setting when pixel cell is dark-state, corresponding control unit is light tight, when the pixel cell is on state of, corresponding control unit printing opacity, the dark-state light leak or dark-state picture brightness of pixel cell not enough low phenomenon can be effectively improved, so that the dark-state of pixel cell is dark enough, the contrast of picture is improved, it is ensured that the quality that picture is shown.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of display device.
Background technology
The features such as liquid crystal display device has small volume, low in energy consumption, radiationless, manufacturing cost is relatively low, current
Flat panel display market occupies leading position.The principle of liquid crystal display device is：Liquid crystal molecule is controlled by driving electric field
Deflect to realize the display of specific grey-scale.
In order that liquid crystal molecule is regularly arranged by certain orientation, oriented layer is formed with the inside of liquid crystal panel.But
It is that, for the liquid crystal molecule close to oriented layer, being determined power by oriented layer riveting is influenceed, and its deflection is severely impacted, causes to pass
In system liquid crystal display device, it is easy to dark-state picture light leak or not low enough the phenomenon of dark-state picture brightness occur, can thus lead
Cause picture quality to be deteriorated, picture quality is have impact on to a certain extent.
The content of the invention
The present invention provides a kind of liquid crystal display device, and the dark-state picture light leak or dark-state to solve liquid crystal display device are drawn
The problem of face brightness is not low enough.
In order to solve the above technical problems, the present invention provides a kind of display device, including display panel and be the display surface
Plate provides the backlight module of light source, and the display panel includes multiple pixel cells, and each pixel cell includes on state of and dark-state
Two kinds of working conditions, the display device also includes：
Control panel, is arranged at the side that the backlight module emits beam, including incidence surface and exiting surface；
The control panel includes the position one-to-one corresponding of multiple control units, described control unit and pixel cell, institute
Stating control unit includes printing opacity and light tight two kinds of working conditions；
Control module, when the pixel cell is dark-state, controls corresponding control unit light tight, when the pixel list
When member is on state of, corresponding control unit printing opacity is controlled.
Display device as described above, it is preferred that the control panel includes the first substrate and second substrate to box,
Described control unit formation is between the first substrate and second substrate, and the outer surface of the first substrate is the chain of command
The exiting surface of plate, the outer surface of the second substrate is the incidence surface of the control panel；
Described control unit includes：
One accommodating chamber, is corresponded with the position of the pixel cell；
The transparent organic solvent in the accommodating chamber is filled in, and is suspended in the transparent organic solvent and powered
Electrophoresis particle, at least a portion of the electrophoresis particle is light tight；
The control module is arranged at around the cavity of the accommodating chamber, for controlling the electrophoresis particle to be accommodated described
Position in chamber so that described control unit is in printing opacity or impermeable light state.
Display device as described above, it is preferred that described control unit also includes：
Transparent microcapsule, in the accommodating chamber, the transparent organic solvent and electrophoresis particle are filled in described transparent
In microcapsules.
Display device as described above, it is preferred that first electrode or the second electricity is presented to be overall in the electrophoresis particle
The sphere structure of polarity, including be unable to printing opacity and in first electrode the first hemisphere, and can it is reflective and in second electricity
Second hemisphere of polarity, first electrode and second electrode opposite polarity.
Display device as described above, it is preferred that apply the first electric signal in the control module, controls the electrophoresis
During first area of the Particles Moving into the accommodating chamber, the printing opacity from incidence surface to exiting surface is formed with the accommodating chamber and is led to
Road；
Apply the second electric signal in the control module, control that the electrophoresis particle is moved in the accommodating chamber second
During region, the electrophoresis particle formation one stops the barrier layer that the light from incidence surface is appeared from exiting surface.
Display device as described above, it is preferred that when the electrophoresis particle forms the barrier layer, the electrophoresis grain
First hemisphere of son is towards the exiting surface, and the second hemisphere is towards the incidence surface.
Display device as described above, it is preferred that the control module includes：
Positioned at least one first electrode structure of the side wall of the accommodating chamber；
Second electrode structure positioned at the top of the accommodating chamber and/or bottom；With
Power control unit, for applying electric signal to the first electrode structure or second electrode structure, is acted
In the electric field of the electrophoresis particle, the electrophoresis particle is controlled to move to the corresponding region of the accommodating chamber.
Display device as described above, it is preferred that apply in the power control unit to the first electrode structure
First electric signal, when the control electrophoresis particle moves to the first area in the accommodating chamber, shape in the accommodating chamber
The light transmission passage of the Cheng Youcong incidence surfaces to exiting surface；
Apply second electric signal to the second electrode structure in the power control unit, control the electrophoresis grain
When son moves to the second area of the accommodating chamber, the electrophoresis particle formation one stops the light from incidence surface from exiting surface
The barrier layer appeared.
Display device as described above, it is preferred that second electric signal includes being applied to the second of incidence surface side
On electrode structure, in the electric signal of first electrode, and/or it is applied in the second electrode structure of exiting surface side, in second
Electropolar electric signal.
Display device as described above, it is preferred that the second electrode structure be only located at the accommodating chamber top or
Bottom, the electric polarity of second electric signal and the electric polarity of the electrophoresis particle are opposite.
Display device as described above, it is preferred that the second electrode structure is located at the top and bottom of the accommodating chamber
Portion, second electric signal includes two electricity for each leading into the second electrode structure of the top and bottom positioned at the accommodating chamber
Opposite polarity sub- electric signal.
Display device as described above, it is preferred that the control panel is arranged at the display panel display picture
Side；
The second substrate is the color membrane substrates of display panel.
Display device as described above, it is preferred that the control panel is arranged at the display panel and backlight module
Between；
The first substrate is the array base palte of display panel.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
In above-mentioned technical proposal, the side emitted beam in backlight module is provided with control panel, wherein, control panel bag
Include the pixel cell position one-to-one corresponding of multiple control units, described control unit and display panel, and described control unit bag
Include printing opacity and light tight two kinds of working conditions.By setting when pixel cell is dark-state, corresponding control unit is light tight, when
When the pixel cell is on state of, corresponding control unit printing opacity can be effectively improved the dark-state light leak or dark-state of pixel cell
Picture brightness not enough low phenomenon so that the dark-state of pixel cell is dark enough, improves the contrast of picture, it is ensured that what picture was shown
Quality.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 represents the structural representation of display device in the embodiment of the present invention；
Fig. 2 represents the structural representation one of a control unit of control panel in the embodiment of the present invention；
Fig. 3 represents first job schematic diagram when control unit in Fig. 2 is in impermeable light state；
Fig. 4 represents operating diagram when control unit in Fig. 2 is in light transmission state；
Fig. 5 represents second operating diagram when control unit in Fig. 2 is in impermeable light state；
Fig. 6 represents the 3rd operating diagram when control unit in Fig. 2 is in impermeable light state；
Fig. 7 represents the structural representation two of a control unit of control panel in the embodiment of the present invention；
Fig. 8 represents first job schematic diagram when control unit in Fig. 7 is in impermeable light state；
Fig. 9 represents operating diagram when control unit in Fig. 7 is in light transmission state；
Figure 10 represents second operating diagram when control unit in Fig. 7 is in impermeable light state；
Figure 11 represents the 3rd operating diagram when control unit in Fig. 7 is in impermeable light state.
Embodiment
In order to solve in conventional display device, the problem of the dark-state light leak or not low enough dark-state picture brightness of pixel cell,
The present invention provides a kind of display device, and the display device is provided with a control panel in the side that backlight module emits beam,
The control panel includes the position one-to-one corresponding of multiple control units, described control unit and pixel cell, and the control is single
Member includes printing opacity and light tight two kinds of working conditions.By setting control module, when pixel cell is dark-state, control corresponding
Control unit is light tight, when the pixel cell is on state of, controls corresponding control unit printing opacity, can be effectively improved pixel
The dark-state light leak or dark-state picture brightness of unit not enough low phenomenon so that the dark-state of pixel cell is dark enough, improve picture
Contrast, it is ensured that the quality that picture is shown.
Below in conjunction with drawings and examples, the embodiment to the present invention is described in further detail.Following reality
Applying example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Fig. 1 show in the structural representation of display device in the embodiment of the present invention, the embodiment of the present invention shown in Fig. 2 and controlled
The structural representation of one control unit of panel.
With reference to shown in Fig. 1 and Fig. 2, the display device in the embodiment of the present invention includes display panel 2, carried for display panel 2
For the backlight module 3 of light source, and control panel 1.The agent structure of display panel 2 is the array base palte set to box (in figure
It is not shown) and color membrane substrates (not shown), including multiple pixel cells 4.In order to realize colored display, pixel cell 4 has
Body can include red sub-pixel unit, green sub-pixels unit and blue subpixels unit, and the principle of utilization space colour mixture,
Realize the display of colour picture.Control panel 1 is arranged at the side that backlight module 3 emits beam, specifically, control panel 1 can
With between display panel 2 and backlight module 3 so that the light that backlight module 3 is sent is available to after control panel 1
Display panel 2.Control panel 1 can also be located at the side (side of display picture) that display panel 2 deviates from backlight module 3, the back of the body
The light that optical mode group 3 is sent is provided after display panel 2, then is projected by control panel 1, as shown in Figure 1.Therefore, control panel 1
It can be projected for control to the light of display picture side.
In order to control each pixel cell 4 to project to the light of display picture side, design control panel 1 includes multiple controls
Unit 5 processed, wherein, control unit 5 and the position of pixel cell 4 are corresponded, and control unit 5 includes printing opacity and light tight two
Plant working condition.By setting control module (not shown), when pixel cell 4 is dark-state, control corresponding control single
Member 5 is light tight, when pixel cell 4 is on state of, controls the corresponding printing opacity of control unit 5, is shown ensureing that display panel 2 is normal
In the case of, the dark-state light leak or dark-state picture brightness of pixel cell 4 not enough low phenomenon can be effectively improved, so that in control
Under the cooperation of unit 5 so that the dark-state of pixel cell 4 is dark enough, the contrast of picture is improved, it is ensured that the product that picture is shown
Matter.
As a specific embodiment, control panel 1 includes the first substrate 20 and second substrate 21 to box, and first
Control unit 5 is formed between substrate and second substrate.Wherein, the outer surface of first substrate 20 is the exiting surface of control panel 1, the
The outer surface of two substrates 21 is the incidence surface of control panel 1.Specifically, when control panel 1 is located at display panel 2 and backlight module
When between 3, first substrate 20 is the array base palte of display panel.When control panel 1 is located at the one of the display picture of display panel 2
Side, second substrate 21 is the color membrane substrates of display panel, to reduce the thickness of display device.
As shown in Fig. 2 control unit 5 specifically includes an accommodating chamber 10 and the transparent organic solvent being filled in accommodating chamber 10
12, and it is suspended in electrophoresis particle 13 in transparent organic solvent 12 and powered.Wherein, accommodating chamber 10 and the position of pixel cell 4
Put one-to-one corresponding.At least a portion of electrophoresis particle 13 is light tight.
The control module (not shown) is arranged at around the cavity of accommodating chamber 10, can be by providing the side of electric field
Formula, to control position of the electrophoresis particle 13 in accommodating chamber 10.When control electrophoresis particle 13 move in accommodating chamber 10 first
Region, during the light transmission passage being formed with accommodating chamber 10 from incidence surface to exiting surface, can cause control unit 5 to be in printing opacity
State.Because at least a portion of electrophoresis particle 13 is light tight, so that when control electrophoresis particle 13 is moved in accommodating chamber 10
Second area, when forming the barrier layer that a light of the stop from incidence surface is appeared from exiting surface, can cause at control unit 5
In impermeable light state.
Further, the control module is engaged with the controller of display panel 2, specifically can synchronizing signal control
Under system, when pixel cell 4 is dark-state, control corresponding control unit 5 light tight, when pixel cell 4 is on state of, control pair
The printing opacity of control unit 5 answered.
Wherein, it is in positive polarity or negative polarity that electrophoresis particle 13 is overall, and with lighttight part, such as it is overall impermeable
Light (shown in reference picture 7- Figure 11), or partial light permeability part it is light tight (shown in reference picture 2- Fig. 6, a part for electrophoresis particle
13a is light tight, another part 13b printing opacities).And electrophoresis particle 13 can be rule/irregular shape.
With reference to shown in Fig. 1 and Fig. 2, as one embodiment, the electrophoresis particle 13 in the present invention can overall be presented the
The sphere structure of one electric polarity or second electrode, including be unable to printing opacity and in first electrode the first hemisphere 13a, and
Being capable of reflective and in second electrode the second hemisphere 13b.Wherein, first electrode and second electrode opposite polarity.Can
See, the first hemisphere 13a and the second hemisphere 13b electric polarity on the contrary, and both differ in size so that electrophoresis particle 13
The electric polarity that the hemisphere with larger electrode has is presented on the whole.For example, electrophoresis particle 13 can be half black half
The electrophoresis particle 13 of white type, it is made up of the black hemisphere 13a in black and white white hemisphere 13b.Wherein, it is black, white
Hemisphere is in different electric polarities respectively, and electrophoresis particle 13 is as an entirety, and the electric polarity of presentation is with black hemisphere 13a's
Electric polarity is identical, or identical with white hemisphere 13b electric polarity.In addition, by setting the second reflective hemisphere 13b of energy,
Stop the barrier layer that the light from incidence surface is appeared from exiting surface in the formation of electrophoresis particle 13 so that control unit 5 is in not
During light transmission state, incidence surfaces of the second hemisphere 13b towards control panel 1 can be controlled, so that incident light is again anti-
It is emitted back towards to backlight module 3, for showing, improves the light utilization of backlight module 3, reduce energy consumption.
Preferably, control unit 5 also includes the Transparent microcapsule 11 being located in accommodating chamber 10, transparent organic solvent 12 and electricity
Swimming particle 13 is filled in Transparent microcapsule 11.By setting Transparent microcapsule 11, electrophoresis particle 13 can be caused in some side
Some region in Transparent microcapsule 11 is gathered in the presence of to electric field, due to particle and effect microcapsule wall, and ion it
Between interaction, even if removing the electric field, it is also possible that electrophoresis particle 13 it is tightly packed and for a long time be maintained at the region.
Only when applying the electric field in other directions, the accumulation of particle can be just resolved, and in another region shape of Transparent microcapsule 11
Cheng Xin, stable is tightly packed.Therefore, the setting of Transparent microcapsule 11 is so that control unit 5 is with stable printing opacity and not
Light transmission state.And only when changing working condition, the electric field needed for applying just is needed, energy consumption is very low.
Control module in the embodiment of the present invention can control electrophoresis particle 13 in receiving by way of applying electric field
Position in chamber 10.
In a specific embodiment, the control module applies the first electric signal, and control electrophoresis particle 13 is in electricity
When the first area in accommodating chamber 10 is moved under field action, the printing opacity from incidence surface to exiting surface is formed with accommodating chamber 10 and is led to
Shown in road, reference picture 1 and Fig. 4；And, the control module applies the second electric signal, and control electrophoresis particle 13 is in electric field action
Under when moving to the second area in accommodating chamber 10, the formation of electrophoresis particle 13 one stops that the light from incidence surface is saturating from exiting surface
Shown in the barrier layer gone out, reference picture 1 and Fig. 3.After electric signal is cancelled, electrophoresis particle 13 will stay in current region, keep
The light transmission passage currently formed or barrier layer.
When electrophoresis particle is by black and in electronegative black hemisphere 13a and white and in electropositive white hemisphere
Body 13b is constituted, and electrophoresis particle is as an entirety, when electropositive or elecrtonegativity is presented.It can be applied by the control module
Corresponding electric signal, when electrophoresis particle formation stops the barrier layer that the light from incidence surface is appeared from exiting surface, control electricity
Swim particle black hemisphere 13a towards the exiting surface of control panel, white hemisphere 13b is towards the incidence surface of control panel, such as Fig. 3
It is shown.So, black hemisphere 13a light tight function can be not only utilized, the incident light of incidence surface is prevented through electrophoresis grain
Son reaches exiting surface, at the same time it can also which using white hemisphere 13b reflection function, the incident light of incidence surface is reflected back into
Backlight module, for showing, reduces the incident light that barrier layer needs to stop, is improving the same of barrier layer light barrier effect
When, the light utilization ratio of backlight module can also be greatly improved.
Wherein, the control module can be following structure, and electrophoresis particle 13 is controlled for applying electric signal in appearance
The position received in chamber 10.
Specifically, the control module includes：
Positioned at least one first electrode structure (131 and 132 in such as Fig. 3-Fig. 6) of the side wall of accommodating chamber 10；
Second electrode structure positioned at the top of accommodating chamber 10 and/or bottom in Fig. 3 and Fig. 4 (as being located at accommodating chamber 10
The second electrode structure 133 at top, the second electrode structure 134 positioned at the bottom of accommodating chamber 10)；With
Power control unit (not shown), for applying telecommunications to the first electrode structure or second electrode structure
Number, the electric field in electrophoresis particle is acted, control electrophoresis particle 13 moves to the corresponding region of accommodating chamber 10.
Wherein, the top of accommodating chamber 10 is defined positioned at the side where the exiting surface of control panel, the bottom of accommodating chamber 10
Side where incidence surface positioned at control panel.
In the embodiment of the present invention, the first electric signal, control are applied to the first electrode structure in the power control unit
When electrophoresis particle processed moves to the first area in accommodating chamber 10, the printing opacity from incidence surface to exiting surface is formed with accommodating chamber 10
Passage, as shown in Figure 4.
Apply the second electric signal to the second electrode structure in the power control unit, control electrophoresis particle is moved to
During second area in accommodating chamber 10, electrophoresis particle formation one stops the stop that the light from incidence surface is appeared from exiting surface
Layer, as shown in Figure 3.
Here, the first area is close to the region of the side wall of accommodating chamber 10, as shown in figure 4, for example, being accommodated with described
Distance is less than the region of the first preset value between the side wall of chamber, to reduce the influence to pixel aperture ratio.The second area is
The top of accommodating chamber 10 or the region of bottom are close to, for example, distance is less than second between the top or bottom of accommodating chamber 10
The region of preset value.
As a kind of preferred embodiment, the electrophoresis particle in the embodiment of the present invention is the overall ball that first electrode is presented
Body structure, including it is unable to printing opacity and the first hemisphere 13a in first electrode and can be reflective and in second electrode
Second hemisphere 13b, first electrode and second electrode opposite polarity.
In the embodiment of the present invention, control electrophoresis particle move to second area, that is, be close to accommodating chamber 10 top or
, can be using single electrode control or bipolar electrode control mode during the region of bottom.Wherein, when single electrode is controlled, can only it exist
Apply the electric signal in first electrode in the second electrode structure 134 of incidence surface side, as shown in fig. 6, or, only in light extraction
Apply the electric signal in second electrode in the second electrode structure 133 of face side, as shown in Figure 5.When bipolar electrode is controlled,
Apply the electric signal in first electrode in the second electrode structure 134 of incidence surface side, while second in exiting surface side
Apply the electric signal in second electrode on electrode structure 133, as shown in Figure 3.
It will be detailed below how controlling the position of electrophoresis particle using electrode structure in the embodiment of the present invention, to cut
Change the working condition of control unit：
1) electrophoresis particle part is reflective, part is light tight, and first electrode structure and second electrode structure are bipolar electrode.
In Fig. 3 and Fig. 4, incidence surface is in the bottom side of accommodating chamber 10, top side of the exiting surface in accommodating chamber 10.Electrophoresis
Half of spheroid 13b of particle is reflective, and in electropositive, another half of spheroid 13a is light tight, and in elecrtonegativity, as an entirety,
Electrophoresis particle is in integrally electropositive.Specifically, electrophoresis particle can use half black half white form, wherein, dark hemisphere body 13a is not
Printing opacity, and white hemisphere body 13b can be reflective.Now, the first electrode structure 131,132 and second electrode in control unit 5
Structure 133,134 is all bipolar electrode structure, wherein, second electrode structure 133 is arranged at the top of cavity, second electrode structure 134
It is arranged on cavity bottom.When needing to form light barriers in accommodating chamber 10, second electrode knot that can be at the top of cavity
Apply on structure 133 after positive voltage and (apply electric polarity and light tight hemisphere 13a phases i.e. in the second electrode structure of exiting surface side
Anti- electric signal), electrophoresis particle moves to cavity bottom in the presence of electric field, forms the stop for hindering incidence surface light to enter
Layer, now light tight hemisphere 13a is towards exiting surface, and reflective hemisphere 13b is towards incidence surface, can be by the light of incidence surface
Reflect back, improve the light utilization ratio of incidence surface side backlight module, as shown in Figure 3.Needing to be formed in accommodating chamber 10
During light transmission passage, negative voltage can be applied in first electrode structure 131 and 132, now electrophoresis particle moves to first electrode
The side-walls of the annex of structure 131 and 132 so that the incident ray of incidence surface is passed through, as shown in Figure 4.
2) electrophoresis particle part is reflective, part is light tight, and second electrode structure is single electrode, and first electrode structure is double electricity
Pole.
Apply electric polarity in Fig. 5, in the second electrode structure 133 of exiting surface side opposite with light tight hemisphere 13a
Electric signal.Apply the electric polarity telecommunications opposite with reflective hemisphere 13b in Fig. 6, in the second electrode structure 134 of incidence surface side
Number.Half of spheroid 13b of electrophoresis particle is reflective, and in elecrtonegativity, another half of spheroid 13a is light tight, and in electropositive, is used as one
Individual entirety, electrophoresis particle is in integrally electropositive.Now, the second electrode structure in control unit 5 is stagged electrode structure, positioned at chamber
Body bottom or top., can be in the second electrode at the top of cavity when needing to form light barriers in accommodating chamber 10
Apply positive voltage in structure 133, as shown in figure 5, or apply negative voltage in the second electrode structure 134 positioned at cavity bottom,
Electrophoresis particle moves to cavity bottom in the presence of electric field, forms the barrier layer for hindering incidence surface light to enter.Needing
When forming light transmission passage in accommodating chamber 10, negative electricity can be applied in the first electrode structure 131 and 132 shown in Fig. 5 and Fig. 6
Pressure, same to Fig. 4, the side-walls that now electrophoresis particle is moved near first electrode structure 131 and 132 so that the incidence of incidence surface
Light is passed through.
3) electrophoresis particle 13 is overall light tight (as shown in Figure 7), and first electrode structure and second electrode structure are double
Electrode.
In Fig. 8, electrophoresis particle 13 is overall light tight, and overall is in elecrtonegativity.Now, the first electricity in control unit 5
Pole structure 131,132 and second electrode structure 133,134 are all bipolar electrode structures, and first electrode structure 131,132 is located at cavity
Side wall, second electrode structure 133 be located at cavity at the top of, second electrode structure 134 be located at cavity bottom.Needing in accommodating chamber
When forming light barriers in 10, apply positive voltage in second electrode structure 133 that can be at the top of cavity, in cavity bottom
Apply in second electrode structure 134 after negative voltage, electrophoresis particle 13 is moved at the top of cavity in the presence of electric field, formed and hindered
The barrier layer that incidence surface light enters.When needing to form light transmission passage in accommodating chamber 10, first electrode that can be in fig .9
Apply positive voltage in structure 131 and 132, the side wall that now electrophoresis particle 13 is moved near first electrode structure 131 and 132
Place so that the incident ray of incidence surface is passed through.
4) electrophoresis particle 13 is overall light tight, and second electrode structure is single electrode, and first electrode structure is bipolar electrode.
In Figure 10, second electrode structure 133 is located at the top of cavity, therefore applies positive voltage in second electrode structure 133
Afterwards, now electrophoresis particle 13 is moved at the top of cavity, forms the barrier layer for hindering incidence surface light to enter.
Figure 11 is similar with Figure 10, unlike, second electrode structure 134 is located at cavity bottom, therefore in second electrode knot
Apply on structure 134 after positive voltage, now electrophoresis particle 13 moves to cavity bottom, form the stop for hindering incidence surface light to enter
Layer.
When needing to form light transmission passage in accommodating chamber 10, the He of first electrode structure 131 that can be in figures 10 and 11
Apply positive voltage on 132, same to Fig. 9, the side-walls that now electrophoresis particle 13 is moved near first electrode structure 131 and 132 make
The incident ray for obtaining incidence surface is passed through.
In the citing of figure 3 above -6, the overall electrode of electrophoresis particle is identical with reflective hemispheroidal polarity.It can manage
In solution, the embodiment of the present invention, the overall electrode of electrophoresis particle can also be identical with light tight hemispheroidal polarity, in this feelings
Under condition, barrier layer is being realized and it is desirable that when reflective hemisphere is towards incidence surface side, the electric signal of application is identical with above citing.
Except that, because electrophoresis particle overall electrode and the above are illustrated on the contrary, therefore, region and figure that electrophoresis particle is moved to
3rd, on the contrary, for example, electrophoresis particle moves to cavity top area in figure 3, to save length, repeating no more in Fig. 5 and Fig. 6.
Citing is only the partial electrode structure and electric field/voltage applying mode that the present invention can be used above.Tied more than
Under the enlightenment of structure, those skilled in the art be will be seen that, single electrode can be used with first electrode structure, and second electrode structure is adopted
Single electrode is used with bipolar electrode, or in first electrode structure and second electrode structure.Further, the embodiment of the present invention
Different electrode structures can also be used in different control units, to save length, is repeated no more.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and replacement can also be made, these improve and replaced
Also it should be regarded as protection scope of the present invention.
Claims (11)
1. a kind of display device, including display panel and the backlight module that light source is provided for the display panel, the display surface
Plate includes multiple pixel cells, and each pixel cell includes two kinds of working conditions of on state of and dark-state, it is characterised in that the display
Device also includes：
Control panel, is arranged at the side that the backlight module emits beam, including incidence surface and exiting surface；
The control panel includes the position one-to-one corresponding of multiple control units, described control unit and pixel cell, the picture
Region where plain unit display panel orthographic projection in the plane be located at region where described control unit in display
Panel in orthographic projection in the plane, described control unit includes printing opacity and light tight two kinds of working conditions；
Control module, when the pixel cell is dark-state, controls corresponding control unit light tight, when the pixel cell is
During on state of, corresponding control unit printing opacity is controlled；
The control panel is included to the first substrate and second substrate of box, described control unit formation in the first substrate and
Between second substrate, the outer surface of the first substrate is the exiting surface of the control panel, the outer surface of the second substrate
For the incidence surface of the control panel；
Described control unit includes：
One accommodating chamber, is corresponded with the position of the pixel cell；
The transparent organic solvent in the accommodating chamber is filled in, and is suspended in the transparent organic solvent and powered electrophoresis
Particle, at least a portion of the electrophoresis particle is light tight；
The control module is arranged at around the cavity of the accommodating chamber, for controlling the electrophoresis particle in the accommodating chamber
Position so that described control unit be in printing opacity or impermeable light state；
The sphere structure of first electrode or second electrode is presented to be overall in the electrophoresis particle, including is unable to printing opacity and in the
One electropolar first hemisphere, and being capable of reflective and in second electrode the second hemisphere, first electrode and second
Electric polarity opposite polarity.
2. display device according to claim 1, it is characterised in that described control unit also includes：
Transparent microcapsule, in the accommodating chamber, the transparent organic solvent and electrophoresis particle are filled in transparent micro- glue
In capsule.
3. display device according to claim 1, it is characterised in that apply the first electric signal, control in the control module
When making the electrophoresis particle and moving to the first area in the accommodating chamber, it is formed with the accommodating chamber from incidence surface to light extraction
The light transmission passage in face；
Apply the second electric signal in the control module, the second area for controlling the electrophoresis particle to move in the accommodating chamber
When, the electrophoresis particle formation one stops the barrier layer that the light from incidence surface is appeared from exiting surface.
4. display device according to claim 3, it is characterised in that when the electrophoresis particle forms the barrier layer,
First hemisphere of the electrophoresis particle is towards the exiting surface, and the second hemisphere is towards the incidence surface.
5. display device according to claim 3, it is characterised in that the control module includes：
Positioned at least one first electrode structure of the side wall of the accommodating chamber；
Second electrode structure positioned at the top of the accommodating chamber and/or bottom；With
Power control unit, for applying electric signal to the first electrode structure or second electrode structure, is acted in institute
The electric field of electrophoresis particle is stated, controls the electrophoresis particle to move to the corresponding region of the accommodating chamber.
6. display device according to claim 5, it is characterised in that in the power control unit to the first electrode
Structure applies first electric signal, when the control electrophoresis particle moves to the first area in the accommodating chamber, the appearance
Receive and the light transmission passage from incidence surface to exiting surface is formed with chamber；
Apply second electric signal to the second electrode structure in the power control unit, control the electrophoresis particle fortune
When moving to the second area of the accommodating chamber, the electrophoresis particle formation one stops that the light from incidence surface is appeared from exiting surface
The barrier layer.
7. display device according to claim 6, it is characterised in that second electric signal includes being applied to incidence surface one
In the second electrode structure of side, in the electric signal of first electrode, and/or it is applied to the second electrode structure of exiting surface side
Above, in the electric signal of second electrode.
8. display device according to claim 7, it is characterised in that the second electrode structure is only located at the accommodating chamber
Top or bottom, the electric polarity of second electric signal and the electric polarity of the electrophoresis particle are opposite.
9. display device according to claim 7, it is characterised in that the second electrode structure is located at the accommodating chamber
Top and bottom, second electric signal includes each leading into the second electrode structure of the top and bottom positioned at the accommodating chamber
The opposite sub- electric signal of two electric polarities.
10. the display device according to claim any one of 2-9, it is characterised in that the control panel is arranged at described
The side of display panel display picture；
The second substrate is the color membrane substrates of display panel.
11. the display device according to claim any one of 2-9, it is characterised in that the control panel is arranged at described
Between display panel and backlight module；
The first substrate is the array base palte of display panel.
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| JPWO2018062533A1 (en) * | 2016-09-30 | 2019-08-29 | 大日本印刷株式会社 | Optical sheet, screen and display device |
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| CN109656055B (en) * | 2019-02-28 | 2021-01-29 | 合肥京东方光电科技有限公司 | Array substrate, manufacturing method, display panel, display device and display system |
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