CN205542787U - Light emitting display device - Google Patents
Light emitting display device Download PDFInfo
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- CN205542787U CN205542787U CN201620179429.6U CN201620179429U CN205542787U CN 205542787 U CN205542787 U CN 205542787U CN 201620179429 U CN201620179429 U CN 201620179429U CN 205542787 U CN205542787 U CN 205542787U
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- emitting display
- light
- switchable mirror
- display device
- luminescent device
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Abstract
The utility model relates to a light emitting display device. A light emitting display device includes the one or more pixel region, every the pixel region is provided with the luminescent device who is located the transparent mode on the base plate, part at least the pixel region is provided with and is located the base plate with between the luminescent device, can the transmission with anti - injection die formula between the switching changeable mirror.
Description
Technical field
This utility model relates to light-emitting display device field, and particularly relating to one can be transparent and opaque
Display type between switching light-emitting display device.
Background technology
Current electroluminescent display is emissive type, it is not necessary to backlight, this point and liquid crystal display
Device (LCD) is different, therefore can realize weight saving and size microminiaturization.Additionally, electroluminescent shows
Show that utensil has low driving voltage, high-luminous-efficiency and wide viewing angle, be therefore subject to as display of future generation
Extensive concern.
Light-emitting display device can be roughly divided into two types transparent type and the opaque type of routine shows
Device.Transparent type display is the device that top and bottom are the most luminous, and have visible ray is at a relatively high
Absorbance, can be used for such as HUD (head-up display), smart window or enhancing
In the scenes such as reality (augmented reality), but cannot be used for opaque display.Routine is not
Transparent type display can only go out light in one direction, or is bottom emission device, or is top
Luminescent device, although opaque escope has significantly higher brightness and efficiency, but cannot be real
Existing Transparence Display.Its reason is, conventional opaque escope has one with reflective surface
Electrode, this reflective surface by produced luminous reflectance to another transparent or semitransparent electrode.And
Transparent display has two transparent or semitransparent electrodes, and therefore light all may be used by two faces of display
Outgoing.
Existing light-emitting display device is transparent or opaque display device, it is impossible to take into account, operation ease
Poor.
Utility model content
Embodiment of the present utility model provides one can switch between transparent and opaque display type
Light-emitting display device.By arranging switchable mirror at the pixel region for luminescence display so that as
Element is Transparence Display or opaque display when needed, and user can realize transparent and not in identical product
Transparent switching, improves operation ease.
According to this utility model embodiment, it is provided that a kind of light-emitting display device, it includes multiple pixel region
Territory, each described pixel region is provided with the luminescent device of the transparent mode being positioned on substrate, at least partly
Described pixel region is provided with between described substrate and described luminescent device, it is possible in transmission with anti-
The switchable mirror of switching between emission mode.
According to this utility model embodiment, being incorporated in the pixel region of light-emitting display device structure can
The switchable mirror of switching between transmission and reflective-mode, pixel can present transparent aobvious as desired
Show or opaque display.Thus, conveniently and effectively achieve same light-emitting display device transparent and
Switching between opaque type of display, improves operation ease.
According to exemplary embodiment of the present utility model, described switchable mirror is that metal-hydride is changeable
Mirror.According to this exemplary embodiment, by using metal-hydride switchable mirror, it is possible to use metal
Highly reflective and the highly transmissive of metal hydride, conveniently realize switchable mirror reflective-mode with
Switching between transmission mode, thus realize same light-emitting display device in transparent and opaque display
Switching between device type.
According to exemplary embodiment of the present utility model, described switchable mirror includes stacking from bottom to top
Bottom transparent electrodes, hydrogen storage electrode, proton conduction layer, at metallic reflection state and metal hydride
The active layer of switching and sealant, wherein said proton conduction layer and described close between transmissive state
Sealing is connected with each other.According to this exemplary embodiment, by metal-hydride switchable mirror applying side
To different electrical bias, so that active layer is hydrogenated or dehydrogenation, when being hydrogenated (that is, at gold
Belong under hydride form), active layer presents metal hydride transmissive state, and when being dehydrogenated (i.e.,
Under all-metal form), active layer is in metallic reflection state.Thus, it is possible to realize luminescence display
Device switching between transparent and opaque display type.
According to exemplary embodiment of the present utility model, described switchable mirror is the most right with described luminescent device
Arrange.By switchable mirror being set to luminescent device just to each other, so that at transmission mode
Under virtually all experience switchable mirror from the light with the side outgoing faced by switchable mirror of luminescent device
Transmission effect and arrive substrate, and in a reflective mode enabling from luminescent device with switchable mirror faced by
The light of side outgoing virtually all experiences the reflection of switchable mirror and is reflected back to luminescent device
And substrate can not be arrived.Thus, it is achieved high efficiency transmission in a transmissive mode and in a reflective mode enabling
High-efficiency reflective, i.e. light-emitting display device can work expeditiously in each mode.
According to exemplary embodiment of the present utility model, between described switchable mirror and described luminescent device
It is provided with flatness layer so that described switchable mirror and described luminescent device are just to setting.According to this example
Property embodiment, the use of flatness layer makes switchable mirror and luminescent device be arranged at substrate substantially parallel
On, it is easier to ground realize switchable mirror and luminescent device just to setting so that in each pattern
Lower light-emitting display device can work the most expeditiously.
According to exemplary embodiment of the present utility model, described switchable mirror is 80-120 nanometer thickness.Root
According to this exemplary embodiment, switchable mirror will not significantly change the thickness of light-emitting display device, thus
The external dimensions of produced display will not be different from conventional display.
According to exemplary embodiment of the present utility model, described light-emitting display device farther includes first
Switching transistor, the drain electrode of described first switching transistor is connected with described bottom transparent electrodes, is used for
Control described switchable mirror to switch between transmission and reflective-mode.According to this exemplary embodiment, can
Switchable mirror is applied voltage by the first switching transistor, conveniently realize with low control voltage
To the control of switchable mirror so that switchable mirror switches between transmission and reflective-mode.
According to exemplary embodiment of the present utility model, described light-emitting display device farther includes second
Switching transistor, the drain electrode of described second switch transistor is connected with the pixel electrode of described luminescent device,
For controlling whether to described luminescent device offer data signal.According to this exemplary embodiment, permissible
By second switch transistor, luminescent device is applied voltage, realize luminous organ with low control voltage
The controlling and life-span of luminescent device can be made long of part.
According to exemplary embodiment of the present utility model, described luminescent device includes being cascading
Pixel electrode, luminescent layer and just antielectrode to described pixel electrode.According to this exemplary embodiment,
Luminescent device can be realized with the LED technology of technology maturation in art, so that this
The light-emitting display device of utility model has high yield rate and low cost.
According to exemplary embodiment of the present utility model, described hydrogen storage electrode is by WO3、
NdMgNi4-aCoa、Ti0.5Al0.25Ni0.25、ZrMnwMxCryNizIn at least one hydrogen storage
Alloy is made, wherein: NdMgNi4-aCoaIn a in the range of 0～1.0；ZrMnwMxCryNiz
In M be V or Mo, 0.6≤w≤0.8,0.1≤x≤0.3,0 < y≤0.2,1.2≤z≤1.5.These materials
Material has high hydrogen storage capacity, it is possible to realize the efficient hydrogen storage of hydrogen storage electrode, so that can cut
Change mirror and there is wide control window.
According to exemplary embodiment of the present utility model, described proton conduction layer and described sealant by
ZrO2、SrCeO3、BaCeO3、BaZrO3In at least one proton-conducting material formed,
H+Can be filled in the hole in described proton-conducting material.These materials have high proton conduction
Property, proton can conduct the most efficiently so that switchable mirror can quickly respond in control
Signal processed and between transmission mode and reflective-mode switch, it is achieved light-emitting display device transparent with not
High speed switching between Transparence Display.
According to exemplary embodiment of the present utility model, described active layer is by GdMg, Mg2Ni、YMg、
In LaMg at least one material constitute.These materials have high activity, can easily and
Reversibly be hydrogenated or dehydrogenation, thus be effectively realized switchable mirror transmission mode and reflective-mode it
Between switching function.
According to exemplary embodiment of the present utility model, described each pixel region includes one or more
Subpixel area, each described subpixel area is provided with a described switchable mirror.According to this example
Property embodiment, each subpixel area in each pixel region is both provided with a switchable mirror, i.e.
Carrying out transmission/reflection/angle switching in units of sub-pixel, this can be with independently controlled each subpixel area
Display pattern switches, and improves the display motility of light-emitting display device.
According to exemplary embodiment of the present utility model, described each pixel region is by multiple different face
The pixel region that sub-pixels is formed, each described pixel region is provided with a described switchable mirror.
According to this exemplary embodiment, each pixel region being made up of multiple subpixel area is provided with one
Switchable mirror, i.e. carrying out transmission and reflection switching in units of pixel, this can cut with less
Change mirror quantity provide display pattern switching, i.e. with low cost realize the transparent of light-emitting display device and
Opaque switching.
As shown from the above technical solution, this utility model embodiment is by the pixel for luminescence display
Region arranges switchable mirror so that pixel is Transparence Display or opaque display, Yong Huke when needed
In identical product, realize transparent and opaque switching, improve operation ease.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, below will be to embodiment
In description, the required accompanying drawing used is briefly described, it should be apparent that, attached in describing below
Figure is embodiments more of the present utility model, for those of ordinary skill in the art, is not paying
On the premise of creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is cutting of the switching transistor that can use in the luminescent device of this utility model embodiment
Face figure；
Fig. 2 is the cross section of an example of the electro-luminescence display device according to this utility model embodiment
Figure；
Fig. 3 is the sectional view of conventional light-emitting display device；And
Fig. 4 is the sectional view of the operation principle illustrating metal-hydride switchable mirror.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below will knot
Close the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is a part of embodiment of this utility model, and
It is not all, of embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art exist
Do not make the every other embodiment obtained under creative work premise, broadly fall into this utility model
The scope of protection.
According to exemplary embodiment of the present utility model, it is provided that one can be transparent and opaque aobvious
Show the light-emitting display device of switching between type.Described light-emitting display device includes multiple pixel region,
Each described pixel region is provided with the luminescent device of the transparent mode being positioned on substrate, at least partly described
Pixel region is provided with between described substrate and described luminescent device, it is possible at transmission and reflection mould
The switchable mirror of switching between formula.
As well known to those skilled in the art, pixel is can to launch in the illuminated display structure of patterning
The repetitive of light.Each pixel can be made up of one or more sub-pixels.Such as, at panchromatic device
In part, each pixel can be made up of the sub-pixel of three or more different colours.In monochrome devices
In, each pixel can be made up of a sub-pixel.Each sub-pixel includes luminescent device and driving thereof
Circuit.Luminescent device in each sub-pixel can be organic or inorganic electroluminescent (EL) device.
Include a sub-pixel with each pixel below, and this sub-pixel include an OLED and
As a example by the switching transistor of the drive circuit of this OLED, with reference to-4 pairs of this utility model of Fig. 1
Exemplary embodiment illustrate.
As it is shown in figure 1, can use in the light-emitting display device of this utility model embodiment is used for
Driven for emitting lights device or the switching transistor for controlling switchable mirror are set on the base plate 20.Substrate
Can be formed by glass or plastics.Form cushion 21 on the base plate 20, cushion 21 is formed
Active layer 22 (active layer 22 includes channel region 22a, source area 22b and drain region 22c), and
Form gate insulator 23 to be coated with active layer 22.Gate insulator 23 is formed gate electrode 24,
And form interlayer insulating film 25 with covering grid electrode 24.Interlayer insulating film 25 is formed source electrode
26 and drain electrode 27.Source electrode 26 and drain electrode 27 are passed through gate insulator 23 and interlayer
Contact hole 28 in insulating barrier 25 and contact the source area 22b and drain region 22c of active layer 22 respectively.
Active layer 22 can be formed by the one in inorganic semiconductor material and semi-conducting material.Source area 22b
It is doped with N-shaped or p-type dopant with drain region 22c, and channel region 22a is formed contact
Source area and drain region 22b and 22c.Here, channel region 22a and source area 22b and drain region 22c
Aggregation be referred to as active layer 22.Gate electrode 24 can be by conducting metal or such as conducting polymer
Other conductive materials are formed.
Fig. 2 is the sectional view of an example of the light-emitting display device according to this utility model embodiment.
This figure illustrate only a pixel region.But, according to the luminescence display of this utility model embodiment
Device can include multiple pixel region.As in figure 2 it is shown, at least one picture of this light-emitting display device
Element region is provided with the luminescent device 16 of the transparent mode being positioned on substrate 50, and is provided with and is positioned at base
Switchable mirror 7 between plate 50 and luminescent device 16, that can switch between transmission and reflective-mode.
In this example, the switchable mirror 7 that can switch between transmission and reflective-mode is metal-hydrogen
Thing switchable mirror.Be noted herein that in this utility model embodiment, switchable mirror be not limited to metal-
Hydride switchable mirror, the other kinds of switchable mirror that can switch between transmission and reflective-mode is also
Can be used in the light-emitting display device of the application.
Additionally, in this example, the luminescent device 16 of the transparent mode being positioned on substrate 50 can be
OLED.But, in this utility model embodiment, luminescent device is not limited to OLED.This area
Technical staff it is contemplated that other kinds of or inorganic EL (EL) device is as luminescent device.
Switch between transmission and reflective-mode in fig. 2, it is also shown that be used for controlling switchable mirror 7
Switching transistor 501 and for controlling whether to provide the switch of data signal to luminescent device 16
Transistor 502.It should be pointed out, however, that in this utility model embodiment, the control of switchable mirror 7
The drive circuit of circuit processed and luminescent device 16 is not limited to switching transistor, but can also control for other
Circuit/device processed.
Switchable mirror 7 can be with luminescent device 16 just to setting.Such as, in switchable mirror 7 with luminous
Flatness layer 59 can be provided with so that switchable mirror 7 and luminescent device are just to setting between device 16.
But, this utility model embodiment be also contemplated by switchable mirror 7 not with luminescent device 16 just to arrange
Situation.
Fig. 2 illustrate only an illustrative examples, it is no intended to limits this utility model.This area
Skill would understand that with switchable mirror 7 just to the luminescent device arranged and drive circuit thereof
Unlimited number is in one, it is also possible to for two or more；Each pixel region can include one or
Multiple subpixel area, each described subpixel area is provided with a switchable mirror；Or, each
Pixel region can be the pixel region formed by multiple different colours sub-pixels, each described pixel region
Territory is provided with a described switchable mirror.
Specifically, in the example shown in figure 2, cushion 51 can be set on substrate 50,
Substrate 50 can be formed by such as glass or plastics.And it is possible to arrange switch on cushion 51
Transistor 501 and 502.When forming each switching transistor 501 and 502, cushion 51 is arranged
There is the active layer 52 of predetermined pattern.On channel region 54 in active layer 52, gate insulator is set
53, and in the presumptive area of gate insulator 53, form gate electrode 60.Gate electrode 60 is connected
To gate line (not shown), ON/OFF signal to be applied to switching transistor 501 and 502.At grid
Interlayer insulating film 55 is formed on electrode 60, and by contact hole by source electrode 56 and drain electrode 57
Be formed as contacting the source area 52b of active layer 52 and drain region 52c respectively.Can be in source electrode 56
Formed by SiO with on drain electrode 572Or SiNXThe passivation layer 58 formed.Can be on passivation layer 58
Formed and formed by the material of such as acrylic (acryl), polyimides or benzocyclobutene (BCB)
Flatness layer 59.
It follows that form switchable mirror 7 above the switching transistor 501 and 502 shown in Fig. 2.
Passivation layer 58 is formed the bottom transparent electrodes 72 (being formed by ITO, IZO etc.) of switchable mirror 7.
Forming hydrogen storage electrode 73 in bottom transparent electrodes 72, this hydrogen storage electrode 73 can be by such as
WO3、NdMgNi4-aCoa(a in the range of 0～1.0, such as, a=0.0,0.2,0.4,0.6,0.8,
1.0)、Ti0.5Al0.25Ni0.25、ZrMnwMxCryNiz(M=V or Mo, and 0.6≤w≤0.8,
0.1≤x≤0.3,0 < y≤0.2,1.2≤z≤1.5) etc. at least one hydrogen storage alloy make.Deposit at hydrogen
Proton conduction layer (the hereinafter referred to as proton conduction of the ion-conducting material as proton is formed on storage electrode 73
Layer) 74a, this proton conduction layer 74a extend on hydrogen storage electrode 73 so that proton conduction layer 74a
A part contact with passivation layer 58.Proton conduction layer 74a is formed and can reflect shape in metallicity
The active layer 75 of switching between state and metal hydride pellucidity, so that the one of active layer 75
Divide and contact with passivation layer 58.For example, active layer 75 can be by GdMg shape when not being hydrogenated
Become, be represented by when being hydrogenated that (wherein, can to change to 5 from 0 (complete metal form) (complete for x
Perhydrogenating form), i.e. 0≤x≤5).The example of constituent material when active layer 75 is not hydrogenated also may be used
Including Mg2Ni, YMg or LaMg etc..It is, active layer can be by GdMg, Mg2Ni、
In YMg, LaMg at least one material formed.The top of active layer 75 is formed sealant
(hereinafter referred to as sealant) 74b, sealant 74b keeps contacting with proton conduction layer 74a simultaneously,
That is, it is connected with proton conduction layer 74a.Here, proton conduction layer 74a and sealant 74b can be by
Such as ZrO2、SrCeO3、BaCeO3、BaZrO3In Deng at least one proton-conducting material
Formed, in these materials, H+(that is, proton) can fill the hole in these conduction materials.Matter
Sub-conducting shell 74a and sealant 74b can be formed from the same material.By contact hole 71 by bottom
Transparency electrode 72 is connected to the drain electrode 57 of switching transistor 501, and by lead-in wire (not shown)
Active layer 75 is connected to electrode wires.
It is, switchable mirror 7 can include that the bottom transparent electrodes 72 of stacking from bottom to top, hydrogen store
Electrode 73, as proton ion conducting layer proton conduction layer 74a, metallic reflection state with gold
Belong to active layer 75 and the sealant 74b of switching between hydride transmissive state, wherein proton conduction
Layer 74a is connected with sealant 74b.
In the example shown in figure 2, this light-emitting display device can include the first switching transistor 501,
The drain electrode 57 of this first switching transistor 501 is connected with bottom transparent electrodes 72, can for control
Switching mirror 7 switches between transmission and reflective-mode.
Switchable mirror 7 can use ultrahigh vacuum (UHV) electron gun deposition, pulsed laser deposition or
The methods such as sputtering are formed, and this makes it be readily applied to luminescent device manufacturing process.
Whole switchable mirror 7 forms very thin film, and its thickness can be 80-120 nanometer, such as, about
100 nanometers.Therefore switchable mirror will not significantly change the thickness of electroluminescent display device, is thus produced
The external dimensions of raw display will not be different from conventional display.
After passivation layer 58 forms metal-hydride switchable mirror 7, in the structure formed
Formed and formed by the material of such as acrylic (acryl), polyimides or benzocyclobutene (BCB)
Layer and it is planarized, thus form flatness layer 59.
It follows that form luminescent device (in this example, for OLED) 16 on flatness layer 59.
Specifically, flatness layer 59 forms the pixel limiting layer 160 of patterning, this pixel limiting layer 160
Have can with switchable mirror 7 just to opening.Pixel is formed in the opening of pixel limiting layer 160
Electrode 162, luminescent layer 163 and just antielectrode 164 to pixel electrode 162.Pixel electrode 162
The drain electrode 57 of switching transistor 502 can be connected to and from drain electrode 57 by contact hole 161
Receive such as positive voltage.Antielectrode 164 can cover whole pixel electrode 162 and to pixel electrode
162 supply such as negative voltage.
Pixel electrode 162 and antielectrode 164 are insulated from each other by luminescent layer 163, and work as pixel
Electrode 162 and antielectrode 164 when luminescent layer 163 applies the voltage with opposed polarity, luminescent layer
163 is luminous.
It is, the light-emitting display device 16 of this utility model embodiment can include second switch crystal
Pipe 502, the drain electrode 57 of this second switch transistor 502 and the pixel electrode 162 of luminescent device 16
Connect, be used for controlling whether to provide data signal to luminescent device 16.
Additionally, when including the first switching transistor according to the light-emitting display device of this utility model embodiment
501 and during second switch transistor 502, the first switching transistor 501 and second switch transistor 502
Can be formed in identical manufacturing process, thus save processing step, reduce production cost.
If by the bottom transparent electrodes 72 being connected with the drain electrode 57 of switching transistor 501 and quilt
The active layer 75 being connected to lead-in wire applies electrical bias to switchable mirror 7 and makes bottom transparent electrodes 72
Become positively charged and active layer 75 and become electronegative, then hydrogen starts to flow to live from storage electrode 73
Property layer 75 in, in active layer 75 formed metal hydride, i.e. active layer 75 hydrogenate.Work as active layer
During 75 hydrogenation, metal-hydride switchable mirror 7 becomes transparent, is in optics open state, maximum saturating
The rate of penetrating is 90%.Now, can lead to transmission from the light of pixel electrode 162 outgoing of luminescent device 16
Cross transparent metal-hydride switchable mirror 7, and and then simultaneously from substrate 50 and antielectrode 164 outgoing,
Make the light-emitting display device whole clearing shown in Fig. 2, i.e. be in Transparence Display pattern.
On the other hand, if by the bottom transparent electrical being connected with the drain electrode 57 of switching transistor 501
Switchable metal-hydride switchable mirror 7 is applied by pole 72 and the active layer 75 being connected to go between
Electrical bias and make bottom transparent electrodes 72 become electronegative and active layer 75 and become positively charged,
Then hydrogen starts to flow to storage electrode 73 from active layer 75, and active layer 75 becomes metallic, i.e.
Active layer 75 is dehydrogenated.When active layer 75 is for metallicity (being dehydrogenated), metal-hydride can be cut
Changing mirror 7 and become metallic reflective, be in optics off status, maximum reflectivity is 70%.Now,
From the light of pixel electrode 162 outgoing of luminescent device 16 by the metal of metal-hydride switchable mirror 7
Reflexive active layer 75 reflects and the pixel electrode 162 that returns to folded back upon, and and then only from antielectrode
164 outgoing so that the light-emitting display device shown in Fig. 2 is opaque, i.e. be in opaque display mould
Formula.
In this way, it is possible to by the control circuit (such as, switching transistor 501) of switchable mirror 7
Control charged polarity on bottom transparent electrodes 72 and active layer 75, make switchable mirror 7 exist
Switch between transmissive state and reflective condition, so that the luminescence that this utility model embodiment is provided
Display device freely switches between transparent and opaque display pattern.
In above-mentioned manufacture method, the technique used in each step is technique conventional in art,
This is the most specifically limited.
In order to compare with exemplary embodiment of the present utility model, Fig. 3 shows conventional electroluminescent
The sectional view of light display device, the most do not have switchable mirror 7 as shown in Figure 2 and for
The switching transistor 501 controlling voltage is provided to metal-hydride switchable mirror 7.
It is obvious that in the conventional electroluminescent display device shown in Fig. 3, not existing can be in transmission
The switchable mirror of switching between state and reflective condition, thus can not in Transparence Display pattern with routine not
Switch between Transparence Display pattern.
Fig. 4 is the sectional view of the operation principle schematically showing metal-hydride switchable mirror.When just
Upwards apply electrical bias so that bottom transparent electrodes 72 is as anelectrode (anode) work and active layer
75 when working as negative electrode (negative electrode), hydrogen begin through proton conduction layer 74a and from hydrogen storage electricity
Pole 73 flows in active layer 75.Along with proton concentration increases, active layer 75 becomes being hydrogenated, and
Present the form of transparent metal hydride.When applying reverse electrical bias so that bottom transparent electrodes 72
When working as anelectrode (anode) as negative electrode (negative electrode) work and active layer 75, hydrogen starts
Flowed to hydrogen storage electrode 73 from active layer 75 by proton conduction layer 74a.Make through this dehydrogenation
With, active layer 75 presents its metallic forms, becomes the specular film of highly reflective.
Under its hydrogenated form, metal-hydride switchable mirror maximum transmission rate in visible-range
Being 90%, such as, absorbance can be 60-90%, and whole electro-luminescence display device becomes
Transparent display.Under its metallic forms, metal-hydride switchable mirror in visible-range
Big reflectance is 70%, and such as, reflectance can be 50-70%, and whole electroluminance display
Device becomes conventional opaque escope.
As it has been described above, by switchable mirror being incorporated in light-emitting display device structure, conveniently and effectively
Achieve light-emitting display device switching between transparent and opaque type of display.
In description of the present utility model, illustrate a large amount of detail.It is to be appreciated, however, that this
The embodiment of utility model can be put into practice in the case of not having these details.In some instances,
It is not shown specifically known method, structure and technology, in order to do not obscure the understanding of this description.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, and
Non-to its restriction；Although this utility model being described in detail with reference to previous embodiment, ability
The those of ordinary skill in territory is it is understood that it still can be to the technical side described in foregoing embodiments
Case is modified, or wherein portion of techniques feature is carried out equivalent；And these are revised or replace
Change, do not make the essence of appropriate technical solution depart from the spirit of this utility model each embodiment technical scheme
And scope.
Claims (14)
1. a light-emitting display device, including one or more pixel regions, each described pixel region is provided with the luminescent device of the transparent mode being positioned on substrate, it is characterised in that
At least part of described pixel region is provided with between described substrate and described luminescent device, it is possible to the switchable mirror of switching between transmission and reflective-mode.
Light-emitting display device the most according to claim 1, it is characterised in that described switchable mirror is metal-hydride switchable mirror.
Light-emitting display device the most according to claim 1 and 2, it is characterized in that, described switchable mirror includes the bottom transparent electrodes of stacking from bottom to top, hydrogen storage electrode, proton conduction layer, between metallic reflection state and metal hydride transmissive state, active layer and sealant, wherein said proton conduction layer and the described sealant of switching is connected with each other.
Light-emitting display device the most according to claim 1, it is characterised in that described switchable mirror and described luminescent device are just to setting.
Light-emitting display device the most according to claim 4, it is characterised in that be provided with flatness layer between described switchable mirror and described luminescent device so that described switchable mirror and described luminescent device are just to setting.
Light-emitting display device the most according to claim 1, it is characterised in that described switchable mirror is 80-120 nanometer thickness.
Light-emitting display device the most according to claim 3, it is characterised in that also include that the first switching transistor, the drain electrode of described first switching transistor are connected with described bottom transparent electrodes, be used for controlling described switchable mirror and switch between transmission and reflective-mode.
Light-emitting display device the most according to claim 7, it is characterised in that also include that second switch transistor, the drain electrode of described second switch transistor are connected with the pixel electrode of described luminescent device, is used for controlling whether to provide data signal to described luminescent device.
Light-emitting display device the most according to claim 1, it is characterised in that described luminescent device includes the pixel electrode being cascading, luminescent layer and just antielectrode to described pixel electrode.
Light-emitting display device the most according to claim 3, it is characterised in that described hydrogen storage electrode is by WO3、NdMgNi4-aCoa、Ti0.5Al0.25Ni0.25、ZrMnwMxCryNizIn at least one hydrogen storage alloy make, wherein:
NdMgNi4-aCoaIn a in the range of 0～1.0；
ZrMnwMxCryNizIn M be V or Mo, 0.6≤w≤0.8,0.1≤x≤0.3,0 < y≤0.2,1.2≤z≤1.5.
11. light-emitting display devices according to claim 3, it is characterised in that described proton conduction layer and described sealant are by ZrO2、SrCeO3、BaCeO3、BaZrO3In at least one proton-conducting material formed, H+Can be filled in the hole in described proton-conducting material.
12. light-emitting display devices according to claim 3, it is characterised in that described active layer is by GdMg, Mg2In Ni, YMg, LaMg at least one material formed.
13. light-emitting display devices according to claim 1, it is characterised in that described each pixel region includes that one or more subpixel area, each described subpixel area are provided with a described switchable mirror.
14. light-emitting display devices according to claim 1, it is characterised in that described each pixel region is the pixel region formed by multiple different colours sub-pixels, each described pixel region is provided with a described switchable mirror.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179429.6U CN205542787U (en) | 2016-03-09 | 2016-03-09 | Light emitting display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179429.6U CN205542787U (en) | 2016-03-09 | 2016-03-09 | Light emitting display device |
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| CN205542787U true CN205542787U (en) | 2016-08-31 |
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| CN201620179429.6U Active CN205542787U (en) | 2016-03-09 | 2016-03-09 | Light emitting display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609537A (en) * | 2016-03-09 | 2016-05-25 | 京东方科技集团股份有限公司 | Light emitting display device and fabrication method thereof |
| WO2018220684A1 (en) * | 2017-05-29 | 2018-12-06 | シャープ株式会社 | Display device |
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2016
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609537A (en) * | 2016-03-09 | 2016-05-25 | 京东方科技集团股份有限公司 | Light emitting display device and fabrication method thereof |
| US10025158B2 (en) | 2016-03-09 | 2018-07-17 | Boe Technology Group Co., Ltd. | Light emitting display device and method for manufacturing the same |
| WO2018220684A1 (en) * | 2017-05-29 | 2018-12-06 | シャープ株式会社 | Display device |
| US10991781B2 (en) | 2017-05-29 | 2021-04-27 | Sharp Kabushiki Kaisha | Display device configured to switch between single-sided and double-sided display |
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