CN103323972B - Display device - Google Patents
Display device Download PDFInfo
- Publication number
- CN103323972B CN103323972B CN201310201513.4A CN201310201513A CN103323972B CN 103323972 B CN103323972 B CN 103323972B CN 201310201513 A CN201310201513 A CN 201310201513A CN 103323972 B CN103323972 B CN 103323972B
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- China
- Prior art keywords
- display
- display device
- reflector element
- liquid crystal
- unit
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/022—Viewing apparatus
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
-
- 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
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13476—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which at least one liquid crystal cell or layer assumes a scattering state
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
-
- 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
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
Abstract
The present invention provides a kind of display device, belongs to Display Technique field, and it can solve existing transparent display bad adaptability, the uncontrollable problem of transparency.The display device of the present invention includes: transparent reflector element, and described reflector element has relative display surface and opposite face；Display unit, the content that described display unit shows is projected onto on the opposite face of described reflector element；And through scattering switch unit, it is arranged on the opposite face of described reflector element, and the described scattering switch unit that passes through can switch between scattering states and clear state.Liquid crystal indicator or organic LED display device can be applied to the present invention.
Description
Technical field
The invention belongs to Display Technique field, be specifically related to one can Transparence Display pattern and nontransparent display pattern it
Between switch, the display device that transparency is controlled.
Background technology
Recently, along with the development of information technology, Transparence Display technology more causes the concern of people, Transparence Display technology to exist
Public display, virtual reality, man-machine interaction aspect have important application.Transparent display has a certain degree of penetrance, thus
User can simultaneously view the actual scenery after the display information of screen display and display screen, transparent display be applicable to building,
Vehicle window, shopper window etc..
The ultimate principle of existing a kind of transparent display is as follows: as it is shown in figure 1, content is passed through thoroughly by display unit 2
Mirror 3 is incident upon on reflecting plate 12, is re-reflected on part reflective semitransparent film 11, owing to part reflective semitransparent film 11 can make to be mapped to light thereon
Partially reflective, part passes through, therefore eyes 5 are it can be seen that the display image (from display unit 2) that reflected by part reflective semitransparent film 11,
Also can pass through part reflective semitransparent film 11 and see real scenery 4.
Inventor finds that in prior art, at least there are the following problems: in existing transparent display, because half anti-half
Reflectance/the transmitance of permeable membrane is fixing, and therefore its adaptability is poor, and transparency can not change, and only Transparence Display mould
Formula, it is impossible to switch between Transparence Display pattern and nontransparent display pattern.
Summary of the invention
The technical problem to be solved includes, transparency poor for existing transparent display adaptability
Uncontrollable problem, it is provided that one can switch between Transparence Display pattern and nontransparent display pattern, controlled the showing of transparency
Showing device.
Solve the technology of the present invention problem and be employed technical scheme comprise that a kind of display device, including: transparent reflector element,
Described reflector element has relative display surface and opposite face；Display unit, the content that described display unit shows is projected onto
On the opposite face of described reflector element；And through scattering switch unit, it is arranged on the opposite face of described reflector element, and
The described scattering switch unit that passes through can switch between scattering states and clear state.
Preferably, the described scattering switch unit that passes through includes polymer dispersed liquid crystal film and for controlling polymer dispersion
The electrode of liquid crystal film state.
It may further be preferable that described electrode is transparency electrode.
It may further be preferable that in described polymer dispersed liquid crystal film, liquid crystal droplet is evenly distributed on solid-state organic polymer
In thing matrix, described polymer dispersed liquid crystal film is when clear state, and described liquid crystal droplet, polymeric matrix refractive index are identical.
Preferably, described display device also includes projecting described reflector element for the content shown by display unit
Opposite face on projecting unit.
It may further be preferable that described projecting unit includes that the incidence surface of described reflector element, described incidence surface are convex surface.
Preferably, described projecting unit includes at least one independent lens.
Preferably, described reflector element is tabular, or is part reflective semitransparent film.
Preferably, described display unit is LCDs or organic light-emitting diode (OLED) display screen.
Due to the display device of the present invention have can switch between scattering states and clear state through scattering switch unit, because of
This can realize the control to display device transparency by the state controlled through scattering switch unit, and then achieves display
Device switching between Transparence Display pattern and nontransparent display pattern.
Accompanying drawing explanation
Fig. 1 is the principle schematic of existing transparent display；
Fig. 2 is the structural representation of a kind of display device of embodiments of the invention 2；
Fig. 3 is the structural representation of a kind of reflector element of embodiments of the invention 2；
Wherein reference is: 1, reflector element；11, part reflective semitransparent film；12, reflecting plate；13, display surface；14, relative
Face；2, display unit；3, projecting unit；4, scenery；5, human eye；9, through scattering switch unit.
Detailed description of the invention
For making those skilled in the art be more fully understood that technical scheme, below in conjunction with the accompanying drawings and specific embodiment party
The present invention is described in further detail by formula.
Embodiment 1:
The present embodiment provides a kind of display device, comprising: transparent reflector element, described reflector element has relative
Display surface and opposite face；Display unit, the content that described display unit shows is projected onto on the opposite face of described reflector element；
And through scattering switch unit, it is arranged on the opposite face of described reflector element and described through scattering switch unit energy
Switch between scattering states and clear state.
Due to the display device of the present invention have can switch between scattering states and clear state through scattering switch unit, because of
This can realize the control to display device transparency by the state controlled through scattering switch unit.It is to say, needing
Will using display device as transparent display use time so that through scattering switch unit be in clear state, now, display dress
It is set to Transparence Display pattern；In like manner, when needs display device uses as nontransparent display device so that through scattering switching
Unit is in scattering states, and now, display device is nontransparent display pattern, and then achieves display device in Transparence Display pattern
And the switching between nontransparent display pattern.It can be appreciated that when being between scattering states and clear state through scattering switch unit
Time, display device now will have corresponding transparency, say, that can be by the transparency through scattering switch unit
Control the transparency of display device.
Embodiment 2:
The present embodiment provides a kind of display device, as in figure 2 it is shown, comprising: transparent reflector element 1, it has relatively
Display surface 13 and opposite face 14；Display unit 2, the content of its display is projected onto on the opposite face 14 of reflector element 1；Pass through
Scattering switch unit 9, as it can be seen, it is arranged on the opposite face 14 of described reflector element 1, through scattering switch unit 9 energy
Switch between scattering states and clear state.
Preferably, the described scattering switch unit 9 that passes through includes polymer dispersed liquid crystal film (Polymer Dispersed
Liquid Crystal, PDLC) and for controlling the electrode (being not drawn in figure) of polymer dispersed liquid crystal film state.Polymer divides
Scattered liquid crystal film is dispersed small liquid crystal droplet and the thin film that formed in polymeric substrates.
Why preferred polymers dispersed liquid crystal film, is because it and has scattering states and clear state two states.Concrete next
Say, in the scattering state, when light incides polymer dispersed liquid crystal film, due to light by the effective refractive index of liquid crystal droplet with
Being differed greatly by the effective refractive index of polymer, there is multiple reflections and folding in light on the liquid crystal droplet interface with polymer
Penetrating, emergent light is scattering state, and now polymer dispersed liquid crystal film presents opaque state；When adding on polymer dispersed liquid crystal film
During upper electric field, liquid crystal molecule is orientated along direction of an electric field, if the refractive index of selected liquid crystal is equal or near with the refractive index of polymer
Patibhaga-nimittas etc., then no longer there is reflection and refraction in light in polymer dispersed liquid crystal film, but directly transmission is gone out, now polymer
Dispersed liquid crystal film presents pellucidity；Removing external electric field, liquid crystal droplet returns to again initial under the effect of base elastomer energy
Homogeneously dispersed state, now polymer dispersed liquid crystal film recovers scattering states.Visible, polymer dispersed liquid crystal film is in the effect of electric field
Under there is electric control optical switch characteristic, and, by changing additional electric field level, the degree of orientation of liquid crystal molecule can be controlled
(namely changing scattering of light degree), thus change the transparency of polymer dispersed liquid crystal film, and then change display device
Transparency.
In the present embodiment, the electric field controlling polymer dispersed liquid crystal film is realized by described electrode, and electrode can be arranged
At the two ends of polymer dispersed liquid crystal film, certainly other designs also can, as long as outside realizing to polymer dispersed liquid crystal film
Electric field.It is understood that described electrode is preferably transparency electrode (such as ITO electrode).
Through scattering switch unit 9 preferably polymer dispersed liquid crystal film in the present embodiment, in fact can present
The PDLC panel of bright state also can realize, and simply PDLC panel volume is relatively big, is unfavorable for display
The lightening design of device.
It may further be preferable that described polymer dispersed liquid crystal film is when its clear state, described liquid crystal droplet, polymer base
Body refractive index is identical.Because now, in polymer dispersed liquid crystal film, liquid crystal droplet and polymeric matrix are without obvious optics interface, structure
Become a substantially homogeneous medium, so incident illumination scatters hardly, the transparent shape of polymer dispersed liquid crystal film, transparency
Higher.
As in figure 2 it is shown, the content of display unit 2 display can be projected onto on the opposite face 14 of reflector element 1, due to light
Opposite face 14 can reflect, so that human eye 5 can see the content of display on reflector element 1.Display unit 2
Preferably LCDs or organic light-emitting diode (OLED) display screen, certainly, other display screens meet the requirements also can, reason of being not difficult
Solving, the resolution of display unit 2 is the highest, then the display effect of display device is the best, the most clear.
Preferably, described display device also includes for the content that display unit 2 shows projects described reflection single
Projecting unit 3 on the opposite face 14 of unit 1.It is to say, the effect of projecting unit 3 is the content of display unit 2 to be projected
On opposite face 14, as long as this purpose can be realized just meet design requirement.
As in figure 2 it is shown, described projecting unit 3 preferably includes at least one independent lens, wherein, projecting unit 3 can
Think lens, it is also possible to be a battery of lens.
Why selecting lens or battery of lens is projecting unit 3, and (display unit 2 is to throwing by adjusting object distance to be because us
Penetrate the distance of unit 3) and the position relationship of focal length (lens or the focal length of battery of lens), thus it is possible to vary it is incident upon on opposite face 14
The size of display content, to meet our demand to different size display device.
It is understood that concrete lens design and light path design can have various ways, do not repeat them here, only
Want to make the content on display unit 2 project the requirement i.e. meeting the present invention on opposite face 14.
Need it is further noted that described display unit 2 display content by projecting unit 3 be incident upon described instead
When penetrating on the opposite face 14 of unit 1, it may occur that necessarily distort, display effect to be ensured, it is necessary to display unit 2
On pixel carry out certain repairing, this repairing is called correction, and concrete correction form needs according to different situations specific design,
The present embodiment does not limits.
It may further be preferable that shown in Fig. 3, reflector element 1 is tabular, described projecting unit 3 is described reflector element 1
Incidence surface, described incidence surface is convex surface.It is to say, when reflector element 1 is tabular, projecting unit 3 can be independent
Increase lens or battery of lens, and directly the incidence surface of reflector element 1 is processed, formed and can make display unit by it
The content of 2 is incident upon the convex surface on opposite face 14.
Reflector element 1 shown in Fig. 2, Fig. 3 is tabular, it is true that described reflector element 1 the most preferably half-reflection and half-transmission
Film.Reflectance/the transmitance of part reflective semitransparent film is fixing, it is possible to realize Transparence Display.But now, described projecting unit 3
Preferably at least one independent lens, this is because part reflective semitransparent film is relatively thin, are not suitable for processing incidence surface.
Obviously, the display device in the various embodiments described above can also include polymer dispersed liquid crystal film drive circuit, to
The control circuit of display unit input signal and power supply, they can be respectively provided with or integrally disposed, not limit at this.
It is understood that the principle that is intended to be merely illustrative of the present of embodiment of above and the exemplary enforcement that uses
Mode, but the invention is not limited in this.For those skilled in the art, in the essence without departing from the present invention
In the case of god and essence, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (9)
1. a display device, it is characterised in that including:
Transparent reflector element, described reflector element has relative display surface and opposite face；
Display unit, described display unit is arranged on the side of described reflector element, and the content that described display unit shows is thrown
It is mapped on the opposite face of described reflector element；And
Through scattering switch unit, it is arranged on the opposite face of described reflector element, and described through scattering switch unit energy
Switch between scattering states and clear state.
Display device the most according to claim 1, it is characterised in that the described scattering switch unit that passes through includes that polymer divides
Dissipate liquid crystal film and for controlling the electrode of polymer dispersed liquid crystal film state.
Display device the most according to claim 2, it is characterised in that described electrode is transparency electrode.
Display device the most according to claim 2, in described polymer dispersed liquid crystal film, liquid crystal droplet is evenly distributed on solid
In state organic polymer matrix, it is characterised in that described polymer dispersed liquid crystal film is when clear state, described liquid crystal droplet, poly-
Compound matrix refractive index is identical.
Display device the most according to claim 1, it is characterised in that also include:
Content for being shown by display unit projects the projecting unit on the opposite face of described reflector element.
Display device the most according to claim 5, it is characterised in that described reflector element is tabular, described projecting unit
Including the incidence surface of described reflector element, described incidence surface is convex surface.
Display device the most according to claim 5, it is characterised in that described projecting unit includes that at least one is independent saturating
Mirror.
Display device the most according to claim 1, it is characterised in that described reflector element is tabular, or be half-reflection and half-transmission
Film.
Display device the most as claimed in any of claims 1 to 8, it is characterised in that described display unit is liquid crystal
Display screen or organic light-emitting diode (OLED) display screen.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310201513.4A CN103323972B (en) | 2013-05-27 | 2013-05-27 | Display device |
| PCT/CN2013/085270 WO2014190656A1 (en) | 2013-05-27 | 2013-10-16 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310201513.4A CN103323972B (en) | 2013-05-27 | 2013-05-27 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103323972A CN103323972A (en) | 2013-09-25 |
| CN103323972B true CN103323972B (en) | 2016-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310201513.4A Active CN103323972B (en) | 2013-05-27 | 2013-05-27 | Display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103323972B (en) |
| WO (1) | WO2014190656A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323972B (en) * | 2013-05-27 | 2016-12-28 | 京东方科技集团股份有限公司 | Display device |
| CN106292017B (en) * | 2015-06-05 | 2021-05-04 | 中兴通讯股份有限公司 | Deflection device, intelligent terminal setting method and intelligent terminal display method |
| CN105676457A (en) * | 2016-04-08 | 2016-06-15 | 吕佩剑 | Head-mounted display device with multiple flight point views |
| CN106488208B (en) * | 2017-01-03 | 2020-03-31 | 京东方科技集团股份有限公司 | Display device and display method |
| CN107102467B (en) * | 2017-07-04 | 2020-05-26 | 京东方科技集团股份有限公司 | Image display device |
| CN110376787A (en) * | 2019-07-26 | 2019-10-25 | 京东方科技集团股份有限公司 | Display panel and manufacturing method, display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1493474A (en) * | 2002-09-11 | 2004-05-05 | 奥博特瑞克斯株式会社 | Composite display and driving method thereof |
| CN101642005A (en) * | 2007-07-11 | 2010-02-03 | 日本写真印刷株式会社 | Decoration board for case and case |
| CN101846833A (en) * | 2009-03-27 | 2010-09-29 | 索尼爱立信移动通信日本株式会社 | Display device and portable terminal |
| WO2012037290A2 (en) * | 2010-09-14 | 2012-03-22 | Osterhout Group, Inc. | Eyepiece with uniformly illuminated reflective display |
| CN102866526A (en) * | 2012-09-21 | 2013-01-09 | 京东方科技集团股份有限公司 | Display device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101581002B1 (en) * | 2008-10-15 | 2015-12-29 | 삼성전자주식회사 | Reflective display panel and device |
| CN103323972B (en) * | 2013-05-27 | 2016-12-28 | 京东方科技集团股份有限公司 | Display device |
-
2013
- 2013-05-27 CN CN201310201513.4A patent/CN103323972B/en active Active
- 2013-10-16 WO PCT/CN2013/085270 patent/WO2014190656A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1493474A (en) * | 2002-09-11 | 2004-05-05 | 奥博特瑞克斯株式会社 | Composite display and driving method thereof |
| CN101642005A (en) * | 2007-07-11 | 2010-02-03 | 日本写真印刷株式会社 | Decoration board for case and case |
| CN101846833A (en) * | 2009-03-27 | 2010-09-29 | 索尼爱立信移动通信日本株式会社 | Display device and portable terminal |
| WO2012037290A2 (en) * | 2010-09-14 | 2012-03-22 | Osterhout Group, Inc. | Eyepiece with uniformly illuminated reflective display |
| CN102866526A (en) * | 2012-09-21 | 2013-01-09 | 京东方科技集团股份有限公司 | Display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014190656A1 (en) | 2014-12-04 |
| CN103323972A (en) | 2013-09-25 |
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