CN109507826A - Display device - Google Patents
Display device Download PDFInfo
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- CN109507826A CN109507826A CN201811613666.9A CN201811613666A CN109507826A CN 109507826 A CN109507826 A CN 109507826A CN 201811613666 A CN201811613666 A CN 201811613666A CN 109507826 A CN109507826 A CN 109507826A
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- display
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- transparent
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
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- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention provides a kind of display devices, belong to field of display technology, which includes transparent display screen and display state switching substrate, and display state switching substrate is set to the side that transparent display screen deviates from display surface.When the phase-change material of phase change layer is undergone phase transition in display state switching substrate, display device can show two kinds of display states of transparence display and opaque display, and when display device shows as the state of opaque display, it can be improved the contrast that display device shows picture, improve the display effect of display device.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of display devices.
Background technique
The core of transparence display technology is transparent display screen, and transparent display screen is that one kind can show the transparent of image information
Panel.When transparent display screen is closed, transparent display screen just seemingly one block of transparent glass；It is transparent when transparent display screen work
Display screen can show corresponding image information, while can also watch the object after screen through transparent display screen.
Existing transparent display screen include transparent liquid crystal display, transparent organic light emitting diode display screen, transparent etc. from
Daughter display screen etc. can be divided into the display of self luminous transparent display screen and non-spontaneous light according to the luminous power of transparent display screen
Screen.Wherein, transparent liquid crystal display panel is a kind of transparent display screen of non-spontaneous light, using ambient light or is carried on the back
The rearrangement of light source reaches transparence display；And for transparent organic light emitting diode display screen, transparentpiston display screen etc.
Self-luminous transparent display panel, by technological improvement using opaque in the high material substitution of transparency or the original device of removal
Part, to realize transparence display.
But since transparent display screen has a degree of light peneration, the image of transparent display screen is caused to show pair
It is more lower than degree, and the background on rear side of transparent display can interfere image shown by transparent display screen, to cause transparent
The image definition that display screen is shown is bad, and display effect is poor.
Summary of the invention
The embodiment of the present invention provides a kind of display device, can effectively solve the problem that the image of transparent display in the prior art
Display contrast technical problem lower and that image display resolution is bad.
The embodiment of the invention provides a kind of display devices, comprising:
Transparent display screen and display state switch substrate；
The display state switching substrate is located at the side that the transparent display screen deviates from display surface；
The display state switching substrate includes the first transparent substrate and the second transparent substrate, and is located at described first thoroughly
Phase change layer between bright substrate and second transparent substrate；The phase change layer includes phase-change material；
When the phase-change material phase transformation is so that the phase change layer forms hyaline layer, transparence display shape is presented in the display device
State；When the phase-change material phase transformation is so that the phase change layer forms non transparent layer, nontransparent display shape is presented in the display device
State.
The embodiment of the invention provides a kind of display devices, by the transparent display screen in display device away from display surface
Side is arranged display state and switches substrate, when so that the phase-change material of phase change layer being undergone phase transition in display state switching substrate,
Display device can show two kinds of display states of transparence display and opaque display, and when display device show as it is impermeable obvious
When the state shown, it can be improved the contrast that display device shows picture, improve the display effect of display device, be able to solve existing
There is transparent display in technology to be only able to carry out transparence display, by the background interference on rear side of transparent display, causes transparent
The picture contrast that display device is shown is low, the technical problem of display effect difference.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the transparence display state of display device provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of the nontransparent display state of display device provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another display device provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of another display device provided in an embodiment of the present invention；
Fig. 6 is a kind of structural block diagram of display device provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of another display device provided in an embodiment of the present invention；
Fig. 8 is also a kind of structural schematic diagram of display device provided in an embodiment of the present invention；
Fig. 9 is a kind of structural schematic diagram of liquid crystal display device provided in an embodiment of the present invention；
Figure 10 is a kind of structural schematic diagram of organic light-emitting display device 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.
Transparent display screen is able to carry out transparence display, i.e., when transparent display screen carries out the display of the information such as pictograph,
Transparent display screen can show the information such as corresponding pictograph, while can also watch transparent display screen through transparent display screen
Object afterwards.The characteristics of due to transparent display screen transparence display, object is influenced after by light and transparent display screen, is caused transparent
The display picture contrast of display screen is lower, shows that the clarity of picture is low, display effect is poor, is unable to satisfy the aobvious of high contrast
Show requirement.
To solve the above problems, Fig. 1 is provided in an embodiment of the present invention the embodiment of the invention provides a kind of display device
A kind of structural schematic diagram of display device.Such as Fig. 1, display device 100 provided in an embodiment of the present invention includes: transparent display screen 10
Switching substrate 20 with display state, display state switching substrate 20 is located at the side that transparent display screen 10 deviates from display surface 110,
And display state switching substrate 20 includes the first transparent substrate 21 and the second transparent substrate 22, and is located at the first transparent substrate
21 and the second phase change layer 23 between transparent substrate 22；The phase change layer 23 includes phase-change material.Wherein, phase-change material phase transformation so that
When phase change layer 23 forms hyaline layer, transparence display state is presented in display device 100；Phase-change material phase transformation is so that phase change layer 23 is formed
When non transparent layer, nontransparent display state is presented in display device 100.
Specifically, the phase change layer between the first transparent substrate 21 and the second transparent substrate 22 of display state switching substrate 20
There is phase-change material in 23, which can undergo phase transition, and when the phase-change material is undergone phase transition, can make phase change layer 23 by
Hyaline layer becomes non transparent layer, or phase change layer 23 is made to become hyaline layer from non transparent layer.Wherein, when phase change layer 23 is hyaline layer
When, display state switching substrate 20 and all seemingly one block of transparent glass of transparent display screen 10, display device 100 is transparent at this time
Display state can watch display device 100 to deviate from the object of 110 side of display surface.Illustratively, Fig. 2 is of the invention real
A kind of structural schematic diagram of the transparence display state of display device of example offer, such as Fig. 2, the phase of display state switching substrate 20 are provided
Change layer 23 has phase-change material 231, which does not influence light from the display surface 100 of display device 100 through propagation
Light is not influenced to the back side of display device 100 120 or the phase-change material 231 to propagate from the back side of display device 100 120
To the display surface of display device 100, when the transparent display screen 10 of display device 100 shows corresponding picture, while can be saturating
Cross the object that display device 100 watches 120 side of the back side of display device 100.
When phase change layer 23 is non transparent layer, display state switching substrate 20 can be used as a light-shielding substrate, to prevent light
It is penetrated from the display surface 110 of display device 100 to the back side away from display surface 110, so that display device 100 is nontransparent display
State.Illustratively, Fig. 3 is a kind of structural representation of the nontransparent display state of display device provided in an embodiment of the present invention
Figure, such as Fig. 3, display state, which switches 231 phase transformation of phase-change material in the phase change layer 23 of substrate 20, makes phase change layer 23 become non transparent layer,
Phase change layer 23 can prevent light from the display surface 110 of display device 100 through the back side for propagating to display device 100 at this time
120 or phase change layer 23 light can be prevented to propagate to the display surface of display device 100 from the back side of display device 100 120
110, when the transparent display screen 10 of display device 100 shows corresponding picture, display can not be watched through display device 100
The object of 120 side of the back side of device 100, the display picture ratio watched at this time from the transparent display screen 10 of display device 100
It is more visible, improve display device 100 display contrast and display effect.
Wherein, the phase transformation of phase-change material can be for generation temperature change and/or pressure in phase change layer 23 in phase change layer 23
It is generated when power changes.Alternatively, the phase transformation of phase-change material may be the environmental change with display device 100 in phase change layer 23
And occur, such as when 100 local environment light of display device is stronger, phase-change material phase transformation so that phase change layer 23 is non transparent layer,
Or display device 100, at outdoor, phase-change material phase transformation is so that phase change layer 23 is non transparent layer.It should be noted that phase transformation
No matter in which way phase transformation corresponds to display device and presents thoroughly material as long as can make phase change layer non transparent layer or hyaline layer
Obviously show state or nontransparent display state is the protection scope of the embodiment of the present invention, details are not described herein.
The present embodiment is arranged display state away from the side of display surface by the transparent display screen in display device and switches base
Plate, when so that the phase-change material of phase change layer being undergone phase transition in display state switching substrate, display device can show transparent
Display and two kinds of display states of opaque display, and when display device shows as the state of opaque display, it can be improved aobvious
Showing device shows the contrast of picture, improves the display effect of display device.
Optionally, it continues to refer to figure 1, phase-change material is sublimated so that phase transformation in the phase change layer 23 of display state switching substrate 20
When layer 23 forms hyaline layer, transparence display state is presented in display device 100；Display state switches phase in the phase change layer 23 of substrate 20
When becoming material sublimation so that phase change layer 23 forms non transparent layer, nontransparent display state is presented in display device 100.
Specifically, phase-change material can distil or sublimate in the phase change layer 23 of display state switching substrate 20.Wherein, in phase
Become material when sublimating, the phase-change material of phase change layer 23 directly becomes solid-state without liquid from gaseous state, and the solid phase-change material
It can be transparent particle or powder, phase change layer 23 is hyaline layer at this time；Or the solid phase-change material can be for phase
Answer the particle or powder of color, but do not influence phase change layer 23 be hyaline layer, i.e., in phase change layer 23 solid phase-change material content compared with
The few or solid phase-change material can be collected in specific position in phase change layer 23, which can be located at aobvious
The non-display area of showing device 100.Illustratively, such as Fig. 2, phase-change material 231 in the phase change layer 23 of state switching substrate 20 is shown
Sublimating becomes solid, and the particle of the solid phase change material 231 is scattered in phase change layer 23, but since solid particle is smaller, and particle
There is gap between particle, light can be made to penetrate, phase change layer 23 is hyaline layer at this time, and display device 100 shows transparent
Display state.
In phase-change material distillation, the phase-change material of phase change layer 23 directly becomes gaseous state without liquid from solid-state, this phase
Become material as with corresponding color gas, this can be full of entire phase change layer 23 with coloured gas quickly, so that phase change layer
23 become non transparent layer.Illustratively, such as Fig. 3, show that the distillation of phase-change material 231 becomes in the phase change layer 23 of state switching substrate 20
For the gas with corresponding color, which is scattered in entire phase change layer 23, since gas has
Color, seemingly the back side 120 of transparent display screen 10 is provided with one layer of light-shielding film layer, light can be prevented to penetrate, at this time phase change layer
23 be non transparent layer, and display device 100 shows nontransparent display state.
In addition, can lead to make the particle of the phase-change material 231 of solid not influence the transparence display state of display device 100
It crosses and collects solid phase change material 231 to the non-display area of display device 100 or other positions for not influencing display.For example, if
Before phase-change material 231 is undergone phase transition, phase-change material 231 is solid particle, the solid particle directly can be placed in display dress
Set 100 non-display area.After phase-change material 231 distils, then by the gas of the phase-change material 231 with particular color by
The non-display area of display device 100 diffuses to the viewing area of display device 100, so that nontransparent display is presented in display device 100
State.It, can be by gas in phase change layer 23 if restoring display device 100 to transparence display state by nontransparent display state
Phase-change material 231 is absorbed into a storage device by way of pumping.Gas phase-change material 231 in the storage device can
It directly sublimates as solid material, can also continue to keep gaseous state, and when non-transparent state is presented again in display device 100,
Discharge the phase-change material 231 of gas.Herein, the phase-change material of gas is collected into do not influence the mode of non-display area of display can
To be pumping, it is also possible to other modes that may be implemented, the present embodiment is not especially limited this.
The present embodiment being sublimated and being distilled by phase-change material, realizes the transformation of phase change layer hyaline layer and non transparent layer, from
And display device is made to show transparence display state and nontransparent display state, implementation is simple, can effectively improve display
Device shows the contrast of picture, improves the display effect of display device.
Optionally, it continues to refer to figure 1, the phase-change material of phase change layer 23 may include iodine.Iodine is atropurpureus under normal circumstances
Crystal has the physical property easily to distil, and the iodine vapor after distillation is purple, and can also be changed into herein by sublimating after distilling
Atropurpureus crystal.When being put into a small amount of iodine crystal as phase-change material in the phase change layer 23 in display state switching substrate 20, energy
Enough after iodine crystal distillation, phase change layer 23 is set to become the non transparent layer of purple, the non transparent layer of the purple can prevent light
Through display device 100 can show nontransparent display state at this time.And after iodine crystal is sublimated, by purple gas again
Become the crystal of atropurpureus, phase change layer 23 becomes hyaline layer again at this time, and transparence display state can be presented in display device 100.
Illustratively, Fig. 4 is the structural schematic diagram of another display device provided in an embodiment of the present invention.Such as Fig. 4, display
There is device 100 viewing area 101 and the non-display area 102 around viewing area 101, viewing area 101 can show corresponding text
The information such as image, the devices such as the settable circuit of non-display area 102, chip.Since iodine is atropurpureus crystal under normal temperature and pressure, to make
The iodine crystal of atropurpureus does not influence the transparence display of display device 100, the iodine crystal of the atropurpureus can be placed in display device
In the collection module 24 of 100 non-display area 102, so that display device 100 is in when the iodine crystal of atropurpureus is not undergone phase transition
Existing transparence display state.When display device 100 needs to present nontransparent display state, the iodine crystal of atropurpureus, which can distil, is
Purple iodine vapor, and it is corresponding aobvious that the iodine vapor of the purple by the non-display area 102 of display device 100 diffused to phase change layer 23
Show area 101, phase change layer 23 is the transmission that non transparent layer can prevent light at this time, and nontransparent display shape is presented in display device 100
State.When display device 100 needs to be restored by nontransparent display state to transparence display state, then the iodine vapor of purple can be led to
The extraction of air extractor 25 is crossed, and is stored.The iodine vapor of purple can be sublimated in air extractor 25 as the iodine crystal of atropurpureus,
The iodine vapor of purple can also be continued to remain.And when display device 100 again needs that non-transparent state is presented, pumping can be filled
The iodine crystal for setting the atropurpureus in 25 is distilled again as the iodine vapor of purple, release to phase change layer 23；Alternatively, directly pumping is filled
The iodine vapor for setting the purple in 25 is discharged to phase change layer 23.
It the distillation of iodine and sublimates related to the temperature of phase change layer and/or pressure.Since iodine easily distils and sublimates, can pass through
Display device 100 is placed under different temperatures environment, the distillation of phase-change material in phase change layer 23 can be realized or is sublimated, thus real
The nontransparent display state and transparence display state of existing display device 100.
Optionally, Fig. 5 is the structural schematic diagram of another display device provided in an embodiment of the present invention.Such as Fig. 5, phase change layer
The sealant layer 232 around phase-change material is additionally provided in 23, which has Packed effect, can be in phase-change material
When undergoing phase transition, phase-change material is prevented to overflow from phase change layer 23.For example, when becoming gas after phase-change material distillation, sealant
232 can be sealed in the phase-change material of gas in phase change layer 23.
Optionally, Fig. 6 is a kind of structural block diagram of display device provided in an embodiment of the present invention.Such as Fig. 6, display device
Temperature-adjusting device 30 is provided in 100.The temperature-adjusting device 30 will be for that will show state switching substrate heating or cooling, control
Phase-change material phase transformation processed is so that phase change layer forms hyaline layer or is mutually deformed into non transparent layer.
Specifically, in conjunction with Fig. 1 and Fig. 6, the phase transformation of phase-change material is related to the display state switching temperature of substrate 20.When aobvious
When showing that the temperature of state switching substrate 20 is increased suddenly or reduced suddenly, corresponding phase can occur for the phase-change material of phase change layer 23
Become, such as distils or sublimate.Illustratively, when the phase-change material of phase change layer 23 be iodine when, to display state switch substrate 20 into
Row heating, the phase transformation that phase-change material distils become iodine vapor from iodine crystal, and iodine of the phase change layer 23 full of purple steams at this time
Gas is accordingly changed into non transparent layer, so that nontransparent display state is presented in display device 100, so as to improve display device 100
Display contrast and display effect.Alternatively, display state switching substrate 20 cools down, the phase that phase-change material is sublimated
Become, iodine crystal is become from iodine vapor, the iodine vapor in phase change layer 23 disappears, and becomes hyaline layer, so that display device 100 is in again
It is now transparence display state.Wherein, the phase transformation that phase-change material is sublimated, which can extract the gas after distillation out, to be stored to a pumping
In device, so that the gas in phase change layer 23 disappears, after becoming hyaline layer, then the gas in air extractor is cooled down, coagulated
Huawei's solid.
Optionally, Fig. 7 is the structural schematic diagram of another display device provided in an embodiment of the present invention.In conjunction with Fig. 6 and figure
7, temperature-adjusting device 30 may include the first heating electrode 31 and the second heating electrode 32.Wherein, the first heating 31, electrode
In the first transparent substrate 21 towards a side surface of the second transparent substrate 22, the second heating electrode 32 is located at the second transparent substrate 22
Towards a side surface of the first transparent substrate 21；First heating electrode 31 and the second heating electrode 32 are for cutting display state
The heating of phase change layer 23 or the cooling in substrate 20 are changed, control phase-change material phase transformation is so that phase change layer 23 forms hyaline layer or nontransparent
Layer.
Specifically, first by temperature-adjusting device 30 heats electrode 31 and second heating 32 pairs of display states of electrode are cut
It changes substrate 20 to be heated or cooled down, to control phase-change material phase transformation, phase change layer 23 is caused to form hyaline layer or non transparent layer, from
And realize the transparence display state and nontransparent display state of display device 100, it is nontransparent display state in display device 100
When can be improved the display picture contrast and display effect of display device 100.Wherein, the first heating electrode 31 and the second heating
Electrode 32 is chosen as transparent heating electrode, such as transparent ITO electrode, not influence the transparence display of display device 100.
Illustratively, the first heating electrode 31 and the second heating electrode 32 can heat phase change layer 23, so that phase transformation
Layer 23 forms non transparent layer, and nontransparent display state is presented in display device 100.And display device 100 is by nontransparent display state
For example can be to the switching mode of transparence display state, by after phase transformation gas extraction store into an air extractor so that
Gas in phase change layer 23 disappears, and after becoming hyaline layer, then cools down to the gas in air extractor, sublimates as solid.
Optionally, continuing with reference Fig. 1 and Fig. 6, control module 50 is additionally provided in display device 100.The control mould
Block 50 is used to pass through temperature-adjusting device 30 when obtaining display status switching instruction and control phase-change material phase transformation, phase change layer 23
Hyaline layer is formed so that transparence display state is presented in display device 100；Alternatively, controlling phase-change material by temperature-adjusting device 30
Phase transformation, phase change layer 23 form non transparent layer so that nontransparent display state is presented in display device 100.
Illustratively, nontransparent display state can be presented for control display device 100 in display status switching instruction, or
It controls display device 100 and transparence display state is presented.When the display status switching instruction that control module 50 obtains is control display
When nontransparent display state is presented in device 100, control module 50 controls 30 pairs of display states of temperature-adjusting device and switches substrate 20
It is heated, the temperature of display state switching substrate 20 is caused to increase, the phase-change material distillation of phase change layer 23 is with corresponding face
The gas of color, so that display device 100 realizes nontransparent display state, improves display so that phase change layer 23 forms non transparent layer
The display picture contrast and display effect of device 100.And when the display status switching instruction that control module 50 obtains is control
Transparence display state is presented in display device 100, and control module 50 controls 30 pairs of display states of temperature-adjusting device and switches substrate 20
When being cooled down, the temperature of display state switching substrate 20 is caused to reduce, the phase-change material of phase change layer 23 is sublimated as solid, phase transformation
The gas with corresponding color in layer 23 disappears, and phase change layer 23 forms hyaline layer, so that display device 100 realizes transparence display
State.
Illustratively, it is presented when the display status switching instruction of the acquisition of control module 50 for control display device 100 transparent
When display state, control module 50 controls air extractor work, so that the gas in phase change layer 23 with corresponding color disappears；So
Afterwards, control module 50 controls temperature-adjusting device 30 and cools down to air extractor, and phase-change material is sublimated as solid, phase change layer 23
Hyaline layer is formed, so that display device 100 realizes transparence display state.
Optionally, with continued reference to Fig. 6, display device 100 is also provided with pressure-regulating device 40.The pressure-regulating device
40 for display state switching substrate 20 pressurization or decompression, control phase-change material phase transformation so that phase change layer 23 formed hyaline layer or
Non transparent layer.
Specifically, the phase transformation of phase-change material is also related to the display state switching pressure of substrate 20.Display state switches base
When the pressure of plate 20 is increased suddenly or reduced suddenly, the temperature of the phase-change material phase change transition of phase change layer 23 can be raised and lowered.
Illustratively, when the state of display switching substrate 20 boosts suddenly, the sublimation temperature of the phase-change material of phase change layer 23 can be increased, i.e.,
Under normal pressure, when T1 temperature, phase-change material can be gas by solid sublimation, but show the pressure of state switching substrate 20
After raising, when T1 temperature, phase-change material remains as solid, and phase-change material could be by solid when being greater than the T2 temperature of T1 temperature
Distillation is gas.Correspondingly, when the state of display switching substrate 20 is depressured suddenly, the sublimation temperature of the phase-change material of phase change layer 23
It reduces, i.e., under normal pressure, when T1 temperature, phase-change material can be gas by solid sublimation, but show that state switches substrate
After 20 pressure rise, when T1 temperature, phase-change material remains as solid, and phase-change material is just when being less than the T3 temperature of T1 temperature
It can be gas by solid sublimation.Thereby, it is possible at a certain temperature, display state switching substrate 20 be pressurizeed or is depressured,
Phase-change material phase transformation is controlled so that phase change layer 23 forms hyaline layer or non transparent layer.Or by switching substrate 20 to display state
It is pressurizeed or is depressured, increase or decrease distillation or the de-sublimation temperature of phase-change material, to control the phase transformation of phase-change material, so that phase
Change layer 23 forms hyaline layer or non transparent layer.
Optionally, Fig. 8 is also a kind of structural schematic diagram of display device provided in an embodiment of the present invention.In conjunction with Fig. 6 and figure
8, pressure-regulating device 40 includes inflation/deflation unit 41 and gas conduit 42.Inflation/deflation unit 41 by gas conduit 42 with it is described
Display state switches the gas communication port connection of substrate 20, and inflation/deflation unit 41 is used to pass through gas conduit 42 to display state
It is inflated for deflated to switch substrate 20, to switching substrate 20 pressurization of display state or decompression, controls phase-change material phase transformation so that phase transformation
Layer 23 forms hyaline layer or non transparent layer.
Specifically, inflation/deflation is carried out by the inflation/deflation unit 41 of pressure-regulating device 40, and the gas is passed through into gas
Conduit 42 is delivered to display state switching substrate 20, is changed with controlling the phase transition temperature of phase-change material in phase change layer 23, from
And when phase-change material phase transformation, phase change layer 23 forms hyaline layer or non transparent layer, realizes the transparence display state of display device 100
With nontransparent display state, the display picture of display device 100 can be improved when display device 100 is nontransparent display state
Contrast and display effect.Wherein, the gas of 41 charge and discharge of inflation/deflation unit is chosen as colorless and transparent inert gas.As a result,
The gas of one side institute charge and discharge is transparent gas, can not influence the transparence display state of display device 100；On the other hand it is filled
The gas put is inert gas, it is not easy to be chemically reacted with the phase-change material of phase change layer, thus not to the phase of phase-change material
Change impacts.
Illustratively, inflation/deflation unit 41 can also act as gas collector.To make the not shadow of the phase-change material in phase change layer 23
The transparence display state for ringing display device 100 can correspond to the position setting of the non-display area of display device 100 in phase change layer 23
Phase-change material storage unit, after inflation/deflation unit 41 is evacuated phase change layer 23, the phase of phase-change material storage unit in phase change layer 23
The phase transition temperature for becoming material changes, and phase-change material is caused mutually to become gas, and diffuses to corresponding display dress in phase change layer 23
The position of 100 viewing area is set, so that display device 100 is nontransparent display state.When display device 100 is by nontransparent display
When state becomes transparence display state, inflation/deflation unit 41 can extract the phase-change material of gas in phase change layer 23 out, so that phase transformation
Layer 23 becomes hyaline layer from non transparent layer.And when display device 100 again needs that non-transparent state is presented, inflation/deflation can be passed through
Unit 41 discharges the phase-change material of gas to phase change layer 23；Alternatively, inflation/deflation unit 41 directly has spy to the supplement of phase change layer 23
Determine the gas of color.
Optionally, with continued reference to Fig. 6, control module 50 can also be used to pass through pressure when obtaining display status switching instruction
Apparatus for adjusting force 40 controls phase-change material phase transformation, and phase change layer forms hyaline layer so that transparence display state is presented in display device 100；
Alternatively, controlling phase-change material phase transformation by pressure-regulating device 40, phase change layer forms non transparent layer so that display device 100 is presented
Nontransparent display state.
Illustratively, nontransparent display state can be presented for control display device 100 in display status switching instruction, or
It controls display device 100 and transparence display state is presented.When the display status switching instruction that control module 50 obtains is control display
When nontransparent display state is presented in device 100, control module 50 controls 40 pairs of display states of pressure-regulating device and switches substrate 20
It being depressured, causes the pressure reduction of display state switching substrate 20, the sublimation temperature of the phase-change material of phase change layer 23 reduces, from
And phase-change material distillation is made to be the gas with corresponding color, phase change layer 23 forms non transparent layer, and display device 100 is real at this time
Existing nontransparent display state, improves the display picture contrast and display effect of display device 100.And when control module 50 obtains
Display status switching instruction be control display device 100 present transparence display state, control module 50 control pressure adjust dress
When setting 40 pairs of display states switching substrates 20 and boosting, cause the pressure rise of display state switching substrate 20, phase change layer 23
The de-sublimation temperature of phase-change material increase so that phase-change material is sublimated as solid, there is corresponding color in phase change layer 23
Gas disappear, phase change layer 23 formed hyaline layer so that display device 100 realize transparence display state.
It should be noted that display device 100 provided in an embodiment of the present invention can only include temperature-adjusting device 30 or pressure
Regulating device 40 or display device 100 can include temperature-adjusting device 30 and pressure-regulating device 40, control module 50 simultaneously
Temperature-adjusting device 30 and pressure-regulating device 40 or control module 50 can be controlled respectively to adjust dress in conjunction with control temperature
30 and pressure-regulating device 40 are set, the technology of specific implementation process this field can be thought on the basis of the embodiment of the present invention
It arrives, details are not described herein.
Optionally, display device can be transparent liquid crystal display device or transparent OLED display, correspondingly, display dress
The transparent display screen set may include transparent liquid crystal display or transparent OLED display screen.
Illustratively, Fig. 9 is a kind of structural schematic diagram of liquid crystal display device provided in an embodiment of the present invention.Such as Fig. 9, when
When display device 100 is transparent liquid crystal display device, the transparent display screen 10 of display device 100 is chosen as transparent liquid crystal and shows
Screen, which includes transparent liquid crystal display panel.Transparent liquid crystal display panel includes thin film transistor (TFT) array base
Plate 12, color membrane substrates 11 and the liquid crystal layer 13 between color membrane substrates 11 and thin-film transistor array base-plate 12, the liquid crystal
There is liquid crystal molecule 131 in layer 13.In addition, transparent liquid crystal display may also include positioned at color membrane substrates 11 far from liquid crystal layer 13 1
The upper polaroid (not shown) of side and positioned at thin-film transistor array base-plate 12 far from liquid crystal layer side down polaroid (figure
In be not shown), and provide the backlight module (not shown) of light source for transparent display screen 10.The transparent liquid crystal display device
Transparence display state or nontransparent aobvious can be presented in the state of display switching substrate 20 when the phase-change material phase transformation of phase change layer 23
Show state.
Figure 10 is a kind of structural schematic diagram of organic light-emitting display device provided in an embodiment of the present invention.Such as Figure 10, when aobvious
When showing device 100 is transparent OLED display, the transparent display screen 10 of display device 100 is chosen as transparent OLED display screen,
The transparent OLED display screen has transparent OLED display panel.Transparent OLED display panel includes thin-film transistor array base-plate
12, organic illuminating element and encapsulated layer 15, the organic illuminating element include 16 luminescent layer 18 of anode and cathode 17, and transparent OLED
The encapsulated layer 15 of display screen is to protect organic illuminating element.Wherein, transparent OLED display can be in display state switching
In substrate 20 when the phase-change material phase transformation of phase change layer 23, transparence display state or nontransparent display state is presented.
The embodiment of the present invention is provided through the transparent display screen in display device away from the side of display surface setting display shape
State switches substrate, and when so that the phase-change material of phase change layer being undergone phase transition in display state switching substrate, display device can be in
Reveal two kinds of display states of transparence display and opaque display, and when display device shows as the state of opaque display, energy
The contrast that display device shows picture is enough improved, the display effect of display device is improved.
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 and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (11)
1. a kind of display device characterized by comprising
Transparent display screen and display state switch substrate；
The display state switching substrate is located at the side that the transparent display screen deviates from display surface；
The display state switching substrate includes the first transparent substrate and the second transparent substrate, and is located at the described first transparent base
Phase change layer between plate and second transparent substrate；The phase change layer includes phase-change material；
When the phase-change material phase transformation is so that the phase change layer forms hyaline layer, transparence display state is presented in the display device；
When the phase-change material phase transformation is so that the phase change layer forms non transparent layer, nontransparent display state is presented in the display device.
2. display device according to claim 1, which is characterized in that the phase-change material is sublimated so that the phase change layer shape
When at hyaline layer, transparence display state is presented in the display device；The phase-change material distil so that the phase change layer formed it is non-
When hyaline layer, nontransparent display state is presented in the display device.
3. display device according to claim 2, which is characterized in that the phase-change material includes iodine.
4. display device according to claim 1, which is characterized in that further include:
Temperature-adjusting device, the temperature-adjusting device are used to display state switching substrate heating or cooling controlling institute
Phase-change material phase transformation is stated so that the phase change layer forms hyaline layer or is mutually deformed into non transparent layer.
5. display device according to claim 4, which is characterized in that the temperature-adjusting device includes: the first heating electricity
Pole and the second heating electrode；
The first heating electrode is located at first transparent substrate towards a side surface of second transparent substrate, and described the
Two heating electrodes are located at second transparent substrate towards a side surface of first transparent substrate；The first heating electrode
And the second heating electrode is used to control the phase-change material phase transformation to display state switching substrate heating or cooling
So that the phase change layer forms hyaline layer or non transparent layer.
6. display device according to claim 4, which is characterized in that further include: control module；
The control module is used to pass through the temperature-adjusting device when obtaining display status switching instruction and control the phase transformation
Material phase transformation, the phase change layer forms hyaline layer so that transparence display state is presented in the display device；Alternatively, passing through the temperature
It spends regulating device and controls the phase-change material phase transformation, the phase change layer forms non transparent layer so that display device presentation is non-
Obviously show state.
7. display device according to claim 1, which is characterized in that further include:
Pressure-regulating device, the pressure-regulating device are used to control institute to display state switching substrate pressurization or decompression
Phase-change material phase transformation is stated so that the phase change layer forms hyaline layer or non transparent layer.
8. display device according to claim 7, which is characterized in that the pressure-regulating device includes: inflation/deflation unit
And gas conduit；
The inflation/deflation unit is connect by the gas conduit with the gas communication port that the display state switches substrate, institute
Inflation/deflation unit is stated for inflated for deflated to display state switching substrate by the gas conduit, to the display shape
State switches substrate pressurization or decompression, controls the phase-change material phase transformation so that the phase change layer forms hyaline layer or non transparent layer.
9. display device according to claim 7, which is characterized in that further include: control module: the control module is used for
When obtaining display status switching instruction, passes through the pressure-regulating device and control the phase-change material phase transformation, the phase change layer
Hyaline layer is formed so that transparence display state is presented in the display device；Alternatively, by described in pressure-regulating device control
Phase-change material phase transformation, the phase change layer forms non transparent layer so that nontransparent display state is presented in the display device.
10. display device according to claim 6 or 9, which is characterized in that the display status switching instruction includes: control
It makes the display device and nontransparent display state is presented, or transparence display state is presented in the control display device.
11. display device according to claim 1, which is characterized in that the transparent display screen includes that transparent liquid crystal is shown
Screen or transparent OLED display screen.
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| CN201811613666.9A CN109507826A (en) | 2018-12-27 | 2018-12-27 | Display device |
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| CN201811613666.9A CN109507826A (en) | 2018-12-27 | 2018-12-27 | Display device |
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