CN107092110A - A kind of display device and its display methods for being integrated with bistable liquid crystal film - Google Patents
A kind of display device and its display methods for being integrated with bistable liquid crystal film Download PDFInfo
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- CN107092110A CN107092110A CN201710419095.4A CN201710419095A CN107092110A CN 107092110 A CN107092110 A CN 107092110A CN 201710419095 A CN201710419095 A CN 201710419095A CN 107092110 A CN107092110 A CN 107092110A
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- liquid crystal
- crystal film
- bistable liquid
- states
- bistable
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 213
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 28
- 239000002344 surface layer Substances 0.000 claims description 8
- 230000035515 penetration Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 26
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000003098 cholesteric effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 150000003431 steroids Chemical class 0.000 description 1
Classifications
-
- 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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- 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
- G02F1/13338—Input devices, e.g. touch panels
-
- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1391—Bistable or multi-stable liquid crystal cells
Abstract
The present invention relates to a kind of display device and its display methods for being integrated with bistable liquid crystal film, it includes bistable liquid crystal film and display screen body, the bistable liquid crystal film is arranged at the top of the display screen body, when the bistable liquid crystal film is in H states, the bistable liquid crystal film is in pellucidity, now, the display device is consistent with traditional display screen functions to provide display image for user, when the bistable liquid crystal film is in FC states, the bistable liquid crystal film is in recording status, now, the display screen body does not work, the display device is consistent with traditional writing pads function to be used as hand-written equipments of recording, when the bistable liquid crystal film is in FC states, the bistable liquid crystal film is in recording status, simultaneously, the display screen body electrified light emitting, this moment, the display screen body is the backlight of the bistable liquid crystal film.
Description
Technical field
The present invention relates to a kind of display device and its display methods, particularly relate to a kind of including bistable liquid crystal film and aobvious
The display device and its display methods of display screen body, wherein, when the bistable liquid crystal film is in H states, at the bistable liquid crystal film
In pellucidity, now, the display device is consistent with traditional display screen functions to provide display image for user, when this
When bistable liquid crystal film is in FC states, the bistable liquid crystal film is in recording status, and now, the display screen body does not work, and this shows
Showing device is consistent with traditional writing pads function to be used as hand-written equipments of recording, when the bistable liquid crystal film is in FC states, is somebody's turn to do
Bistable liquid crystal film is in recording status, meanwhile, the display screen body electrified light emitting, this moment, the display screen body are the bistable state liquid
The backlight of epitaxial.
Background technology
For in terms of Display Technique, during bistable state is exactly same display CELL, do not applying under alive situation,
Two kinds of different states of on state of and dark-state can just be possessed, and maintenance can be continued down, therefore be bistable state as its name suggests.
Such technology is applied has several benefits in display, that is, do not applying under alive situation, you can memory picture,
Electricity consume can effectively be reduced.In the ideal situation, bistable state technology display compares traditional liquid crystal Display Technique, can save
Up to hundreds times of power consumption.This state is quite suitably applied the display applications for not needing frequent updating picture.
In addition, bistable reflective formula cholesteric liquid crystal devices be using cholesteric liquid crystal bistable behavior development and
Into it has the advantages that many conventional liquid crystal parts are incomparable：First, it uses null field bistable display, without brush
Newly, and backlight is not needed, has really played the advantage of liquid crystal display micro energy lose；Secondly, it uses Bragg reflected lights to show
Show, it is easy to accomplish colored, and there is readability in the sun, it is adaptable to outdoor display；It does not need polarizer, so that significantly
Improve display brightness；It is under zero electric field, and each pixel of display can be steadily in the long term in different reflection states, plus fit
When voltage pulse can realize that conversion between different stable states and gray scale are shown, this display device be particularly suitable for use in e-book,
The field such as electronics curtain and commercial advertisement.The bistable behavior of cholesteric liquid crystal is generally obtained by two kinds of approach：One is in courage
Polymer is added in steroid phase liquid crystal, corresponding device is referred to as polymer stabilized cholesteric phase liquid crystal；The second is being carried out to device surface
Proper treatment, corresponding device is referred to as surface stabilized cholesteric liquid crystal.Cholesteric liquid crystal has four kinds of different molecule arranging structures,
The first is that planar texture state is referred to as p states；Second is that conical texture state is referred to as fc states；The third be vertical texture or
Nematic phase, referred to as h states are caused for field；4th kind is that of short duration plane state is referred to as p* states.Under zero electric field, the cholesteric phase in p states
Liquid crystal has periodic helical structure, and its helical axis is substantially vertical with cell surface, applies certain to p states cholesteric liquid crystal
The electric field of intensity, then cholesteric liquid crystal fc states can be converted to from p states, its helical axis distribution is disorderly and unsystematic, is substantially oriented and base
Plate is parallel.When this electric field vanishing, fc states constitute another null field stable state under certain condition.Cholesteric in fc states
The periodicity of phase liquid crystal helix structure has not been existed, and the helical structure presented in multidomain state, but each farmland is still suffered from, therefore it
Scattering is produced to incident light.If applying sufficiently high electric field to liquid crystal, liquid crystal will change to h states, and this state molecule is all along electricity
Field direction is arranged, and liquid crystal is transparent.To the cholesteric liquid crystal in h states, when voltage drops to zero rapidly, liquid crystal molecule is returned to
P states；When voltage is slowly reduced, liquid crystal molecule is then changed into fc states.
Using the characteristic of bistable liquid crystal, when there is pressure to be able to record that track when acting on liquid crystal screen surfaces, in certain electricity
Under corrugating driving, state liquid crystal display returns to original state.Faint Guinea only is needed when driving and refreshing, so as to realize production
Product low-power consumption, current such a technology has been had been applied in erasable handwriting pad.
Current display is typically all the coupling apparatus of display screen and touch-screen.It mainly utilizes touch screen induction contact
Movement locus, and such a display device be limited to the operation principle of touch-screen being write, paint or similar action
When touch-screen can not completely capture original person's handwriting, its use feeling is poor.
The hand-written class apparatus of pulling being made using bistable display film can catch and retain original person's handwriting, and it can increase
Experience sense during strong writing is by and with easy to operate, many advantages, such as saving paper, but the technology mesh of bistable display film
Preceding rests in the hand-written field for pulling class apparatus of making, and there is presently no go out to be now able to enter bistable display film and display
Row is superimposed and then lifts the product and technology of user's impression, and this is the major defect for conventional art.
The content of the invention
The present invention provides a kind of display device and its display methods for being integrated with bistable liquid crystal film, of the invention by bistable state
Display film combines to form a kind of display device with display screen, and it neither influences the work(of former display screen when work
Can, the experience sense of writing can be increased again, retain former person's handwriting, it is of the invention by display screen and the function knot of bistable liquid crystal film in addition
It is combined, it had both enriched the function of display screen, also enriches the experience sense of bistable liquid crystal film writing, and this is for this hair
Bright main purpose.
The technical solution adopted in the present invention is：A kind of display device for being integrated with bistable liquid crystal film, it includes bistable
State liquid crystal film and display screen body, the bistable liquid crystal film are arranged on the display screen body display surface side, the bistable liquid crystal film
It is connected with drive circuit, the bistable liquid crystal film includes FC states, three kinds of states of P states and H states, the drive circuit provides driving
Signal makes the bistable liquid crystal film be converted between three kinds of states, the display device is had display screen body display function, liquid crystal
Film writing function and display screen body display background are while liquid crystal film pen trace function.
When the bistable liquid crystal film is in H states, the bistable liquid crystal film is in pellucidity, this moment, the display screen body
The light penetration sent the bistable liquid crystal film, which is irradiated, to be come, and is now the display screen body display function of the display device.
When the bistable liquid crystal film is in FC states, the bistable liquid crystal film is in recording status, this moment, and user utilizes
What lettering pen was under pressure on bistable liquid crystal film surface application writing pressure, the bistable liquid crystal film is partially converted to P
State, and then handwriting trace is recorded by the bistable liquid crystal film, and the handwriting trace is externally shown by the bistable liquid crystal film, this
When, the display screen body does not work, and is this moment the liquid crystal film writing function of the display device.
When the bistable liquid crystal film is in FC states, the bistable liquid crystal film is in recording status, this moment, and user utilizes
What lettering pen was under pressure on bistable liquid crystal film surface application writing pressure, the bistable liquid crystal film is partially converted to P
State, and then handwriting trace is recorded by the bistable liquid crystal film, meanwhile, the display screen body electrified light emitting, this moment, the display screen body is
The backlight of the bistable liquid crystal film, this moment, the display screen body display background for the display device is while liquid crystal film pen trace
Function.
The drive circuit provide drive signal can make on the bistable liquid crystal film in P states position be converted to FC states with
The bistable liquid crystal film is set to return back to FC states.
A kind of display methods for being integrated with bistable liquid crystal film display device, display screen body is arranged on by bistable liquid crystal film
Top, the bistable liquid crystal film is connected with drive circuit, and the bistable liquid crystal film includes FC states, three kinds of shapes of P states and H states
State, the drive circuit, which provides drive signal, makes the bistable liquid crystal film be converted between three kinds of states, when the bistable liquid crystal film
During in H states, the bistable liquid crystal film is in pellucidity, this moment, the light penetration bistable state that the display screen body is sent
Liquid crystal film, which is irradiated, to be come, and when the bistable liquid crystal film is in FC states, the bistable liquid crystal film is in recording status, this moment, makes
User applies the part being under pressure on writing pressure, the bistable liquid crystal film using lettering pen on the bistable liquid crystal film surface
P states are converted to, and then handwriting trace is recorded by the bistable liquid crystal film, and the writing rail is externally shown by the bistable liquid crystal film
Mark, now, the display screen body do not work, and when the bistable liquid crystal film is in FC states, the bistable liquid crystal film is in record shape
State, this moment, user apply writing pressure on the bistable liquid crystal film surface using lettering pen, on the bistable liquid crystal film by
Pressure is partially converted to P states, and then by the bistable liquid crystal film records handwriting trace, meanwhile, the display screen body electrified light emitting,
This moment, the display screen body be the bistable liquid crystal film backlight, the display screen body can as the bistable liquid crystal film the back of the body
Scape pattern, the drive circuit provide drive signal can make on the bistable liquid crystal film in P states position be converted to FC states with
The bistable liquid crystal film is set to return back to FC states.
Beneficial effects of the present invention are：The present invention display device it possess handwriting functions, display function and handwriting pad
With the interaction function of display screen, and user can be according to using needing arbitrarily to switch three kinds of functions, and it is in work
When neither influence the function of former display screen, can increase the experience sense of writing again, retain former person's handwriting, the present invention will display in addition
The function of shielding with bistable liquid crystal film is combined together, and it had both enriched the function of display screen, also enriched bistable liquid crystal film
The experience sense of writing.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the structural representation of bistable liquid crystal film of the present invention.
Embodiment
As shown in Fig. 1 to 2, a kind of display device for being integrated with bistable liquid crystal film, it include bistable liquid crystal film 10 with
And display screen body 20, the bistable liquid crystal film 10 is arranged on the display surface side of display screen body 20, the bistable liquid crystal film 10 with
Drive circuit 30 is connected.
The bistable liquid crystal film 10 includes FC states, three kinds of states of P states and H states.The drive circuit 30 provides drive signal
The bistable liquid crystal film 10 is set to be converted between three kinds of states.
When the bistable liquid crystal film 10 is in H states, the bistable liquid crystal film 10 is in pellucidity, this moment, the display
The light penetration bistable liquid crystal film 10 that screen body 20 is sent, which is irradiated, carrys out, now, the display device and traditional display screen
Function is consistent to provide display image for user.
When the bistable liquid crystal film 10 is in FC states, the bistable liquid crystal film 10 is in recording status, this moment, user
Apply the part being under pressure on writing pressure, the bistable liquid crystal film 10 on the surface of bistable liquid crystal film 10 using lettering pen
P states are converted to, and then handwriting trace is recorded by the bistable liquid crystal film 10, and the book is externally shown by the bistable liquid crystal film 10
Track is write, now, the display screen body 20 does not work, the display device is consistent with traditional writing pads function to be used as hand-written record work
Tool is used.
When the bistable liquid crystal film 10 is in FC states, the bistable liquid crystal film 10 is in recording status, this moment, user
Apply the part being under pressure on writing pressure, the bistable liquid crystal film 10 on the surface of bistable liquid crystal film 10 using lettering pen
P states are converted to, and then handwriting trace is recorded by the bistable liquid crystal film 10, meanwhile, the electrified light emitting of display screen body 20, this moment,
The display screen body 20 is the backlight of the bistable liquid crystal film 10.This moment, the display screen body 20 can be as the bistable liquid crystal
The background patterns of film 10.
In this case, can if the content of the display screen body 20 display is single or colored background colour
The display device is lifted as the use feeling of handwriting pad.
, can be by the bistable liquid crystal film 10 if the content of the display screen body 20 display is file category information
The handwriting trace of record provides the functions such as annotation, mark.
, can be by the bistable liquid crystal film if the content of the display screen body 20 display is the entertainment information such as picture
The handwriting trace recorded on 10 provides the functions such as amusement, drawing, imitation.
The drive circuit 30, which provides drive signal, can make the position in P states on the bistable liquid crystal film 10 be converted to FC
State is so that the bistable liquid crystal film 10 returns back to FC states.
The display device also includes touch screen layer 40, and the touch screen layer 40 can be arranged on the top surface of bistable liquid crystal film 10
On, the touch screen layer 40 can also be arranged between the bistable liquid crystal film 10 and the display screen body 20.The touch screen layer 40
On the bottom surface that the bistable liquid crystal film 10 and the display screen body 20 can be separately positioned on.
The touch screen layer 40 includes ITO layer.The touch screen layer 40 can also include electromagnetic induction layer.
The touch screen layer 40 to sense the handwriting trace, with reach user can the touch control display device and
Record the effect of the handwriting trace.
When specific implementation, the bistable liquid crystal film 10 includes top coat 11, liquid crystal layer 12 and bottom surface layer 13, its
In, the liquid crystal layer 12 is arranged between the top coat 11 and the bottom surface layer 13.
The top coat 11 and the bottom surface layer 13 can have the materials such as PET, glass to be made.
In the top of top coat 11, waterproof layer can also be set.
When specific implementation, the display screen body 20 can be more for electronic ink screen, LED screen, LCD screen, OLED screen etc.
Plant screen body.
When specific implementation, because the bistable liquid crystal film 10 and the display screen body 20 can be made into thickness very
Thin screen body, the lower section of the display screen body 20 is arranged on so can also use by the bistable liquid crystal film 10, or by the bistable
State liquid crystal film 10 plugs the method in the layer structure of display screen body 20 to realize identical function.
As shown in Fig. 1 to 2, a kind of display methods for being integrated with bistable liquid crystal film display device, by bistable liquid crystal film
10 are arranged on the top of display screen body 20, and the bistable liquid crystal film 10 is connected with drive circuit 30, the bistable liquid crystal film 10
Including FC states, three kinds of states of P states and H states, the drive circuit 30, which provides drive signal, makes the bistable liquid crystal film 10 at three kinds
Converted between state.
When the bistable liquid crystal film 10 is in H states, the bistable liquid crystal film 10 is in pellucidity, this moment, the display
The light penetration bistable liquid crystal film 10 that screen body 20 is sent, which is irradiated, carrys out, now, the display device and traditional display screen
Function is consistent to provide display image for user.
When the bistable liquid crystal film 10 is in FC states, the bistable liquid crystal film 10 is in recording status, this moment, user
Apply the part being under pressure on writing pressure, the bistable liquid crystal film 10 on the surface of bistable liquid crystal film 10 using lettering pen
P states are converted to, and then handwriting trace is recorded by the bistable liquid crystal film 10, and the book is externally shown by the bistable liquid crystal film 10
Track is write, now, the display screen body 20 does not work, the display device is consistent with traditional writing pads function to be used as hand-written record work
Tool is used.
When the bistable liquid crystal film 10 is in FC states, the bistable liquid crystal film 10 is in recording status, this moment, user
Apply the part being under pressure on writing pressure, the bistable liquid crystal film 10 on the surface of bistable liquid crystal film 10 using lettering pen
P states are converted to, and then handwriting trace is recorded by the bistable liquid crystal film 10, meanwhile, the electrified light emitting of display screen body 20, this moment,
The display screen body 20 is the backlight of the bistable liquid crystal film 10.This moment, the display screen body 20 can be as the bistable liquid crystal
The background patterns of film 10.
The drive circuit 30, which provides drive signal, can make the position in P states on the bistable liquid crystal film 10 be converted to FC
State is so that the bistable liquid crystal film 10 returns back to FC states.
The display device also includes touch screen layer 40, and the touch screen layer 40 is to sense, record the handwriting trace.
Claims (10)
1. a kind of display device for being integrated with bistable liquid crystal film, it is characterised in that：Including bistable liquid crystal film and display screen
Body, the bistable liquid crystal film is arranged on the display screen body display surface side, and the bistable liquid crystal film is connected with drive circuit, should
Bistable liquid crystal film includes FC states, three kinds of states of P states and H states, and the drive circuit, which provides drive signal, makes the bistable liquid crystal
Film is converted between three kinds of states, the display device is had display screen body display function, liquid crystal film writing function and display
Shield body display background liquid crystal film pen trace function simultaneously.
2. a kind of display device for being integrated with bistable liquid crystal film as claimed in claim 1, it is characterised in that：When the bistable state
When liquid crystal film is in H states, the bistable liquid crystal film is in pellucidity, this moment, and the light penetration that the display screen body is sent should
Bistable liquid crystal film, which is irradiated, to be come, and is now the display screen body display function of the display device,
When the bistable liquid crystal film is in FC states, the bistable liquid crystal film is in recording status, this moment, and user utilizes writing
What pen was under pressure on bistable liquid crystal film surface application writing pressure, the bistable liquid crystal film is partially converted to P states, enters
And handwriting trace is recorded by the bistable liquid crystal film, and the handwriting trace is externally shown by the bistable liquid crystal film, now, this shows
Display screen body does not work, and is this moment the liquid crystal film writing function of the display device,
When the bistable liquid crystal film is in FC states, the bistable liquid crystal film is in recording status, this moment, and user utilizes writing
What pen was under pressure on bistable liquid crystal film surface application writing pressure, the bistable liquid crystal film is partially converted to P states, enters
And handwriting trace is recorded by the bistable liquid crystal film, meanwhile, the display screen body electrified light emitting, this moment, the display screen body are this pair
The backlight of stable liquid crystal film, this moment, for the display device display screen body display background simultaneously liquid crystal film pen trace function,
The drive circuit, which provides drive signal, can make the position in P states on the bistable liquid crystal film be converted to FC states so that should
Bistable liquid crystal film returns back to FC states.
3. a kind of display device for being integrated with bistable liquid crystal film as claimed in claim 1, it is characterised in that：The display device
Also include touch screen layer.
4. a kind of display device for being integrated with bistable liquid crystal film as claimed in claim 3, it is characterised in that：The touch screen layer
It is arranged on the bistable liquid crystal film top surface.
5. a kind of display device for being integrated with bistable liquid crystal film as claimed in claim 3, it is characterised in that：The touch screen layer
It is arranged between the bistable liquid crystal film and the display screen body.
6. a kind of display device for being integrated with bistable liquid crystal film as claimed in claim 3, it is characterised in that：The touch screen layer
On the bottom surface for being arranged on the display screen body.
7. a kind of display device for being integrated with bistable liquid crystal film as claimed in claim 1, it is characterised in that：The bistable state liquid
Epitaxial includes top coat, liquid crystal layer and bottom surface layer, wherein, the liquid crystal layer is arranged between the top coat and the bottom surface layer.
8. a kind of display device for being integrated with bistable liquid crystal film as claimed in claim 1, it is characterised in that：The bistable state liquid
Epitaxial includes top coat, liquid crystal layer, bottom surface layer and ITO layer, wherein, the liquid crystal layer be arranged on the top coat and the bottom surface layer it
Between, the ITO layer is separately positioned on the top coat and the bottom surface layer is closed on the side of the liquid crystal layer.
9. a kind of display methods for being integrated with bistable liquid crystal film display device, it is characterised in that：Bistable liquid crystal film is set
At the top of display screen body, the bistable liquid crystal film is connected with drive circuit, the bistable liquid crystal film include FC states, P states with
And three kinds of states of H states, the drive circuit, which provides drive signal, makes the bistable liquid crystal film be converted between three kinds of states,
When the bistable liquid crystal film is in H states, the bistable liquid crystal film is in pellucidity, and this moment, the display screen body is sent out
The light penetration gone out the bistable liquid crystal film, which is irradiated, to be come,
When the bistable liquid crystal film is in FC states, the bistable liquid crystal film is in recording status, this moment, and user utilizes writing
What pen was under pressure on bistable liquid crystal film surface application writing pressure, the bistable liquid crystal film is partially converted to P states, enters
And handwriting trace is recorded by the bistable liquid crystal film, and the handwriting trace is externally shown by the bistable liquid crystal film, now, this shows
Display screen body does not work,
When the bistable liquid crystal film is in FC states, the bistable liquid crystal film is in recording status, this moment, and user utilizes writing
What pen was under pressure on bistable liquid crystal film surface application writing pressure, the bistable liquid crystal film is partially converted to P states, enters
And handwriting trace is recorded by the bistable liquid crystal film, meanwhile, the display screen body electrified light emitting, this moment, the display screen body are this pair
The backlight of stable liquid crystal film, the display screen body can as the bistable liquid crystal film background patterns,
The drive circuit, which provides drive signal, can make the position in P states on the bistable liquid crystal film be converted to FC states so that should
Bistable liquid crystal film returns back to FC states.
10. a kind of display methods for being integrated with bistable liquid crystal film display device as claimed in claim 1, it is characterised in that：
The display device also includes touch screen layer, and the touch screen layer is to sense, record the handwriting trace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108962043A (en) * | 2018-07-27 | 2018-12-07 | 上海天马微电子有限公司 | Inorganic light-emitting diode display panel and display device |
| CN109032422A (en) * | 2018-09-05 | 2018-12-18 | 广东小天才科技有限公司 | A kind of intelligent handwriting board and its implementation and device |
| CN109166358A (en) * | 2018-09-25 | 2019-01-08 | 上海优谦智能科技有限公司 | A kind of multi-modal tutoring system based on Internet of Things |
| CN109782505A (en) * | 2017-11-14 | 2019-05-21 | 北京大学 | A kind of reflective film and preparation method thereof with light erasing function |
| CN112987373A (en) * | 2021-02-25 | 2021-06-18 | 维沃移动通信有限公司 | Display device and electronic apparatus |
| CN113741077A (en) * | 2021-08-13 | 2021-12-03 | 山东蓝贝思特教装集团股份有限公司 | Single-layer bistable liquid crystal copying device and method |
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Application publication date: 20170825 |