CN103323972A - Display device - Google Patents
Display device Download PDFInfo
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- CN103323972A CN103323972A CN2013102015134A CN201310201513A CN103323972A CN 103323972 A CN103323972 A CN 103323972A CN 2013102015134 A CN2013102015134 A CN 2013102015134A CN 201310201513 A CN201310201513 A CN 201310201513A CN 103323972 A CN103323972 A CN 103323972A
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- China
- Prior art keywords
- display device
- liquid crystal
- display
- reflector element
- unit
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Classifications
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- 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
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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
- G02F1/1347—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 invention provides a display device and belongs to the technical field of display. By means of the display device, the problems of poor adaptability and incontrollable transparency of prior transparent displayers can be solved. The display device comprises a transparent reflection unit, a display unit and a penetrating scattering switching unit. The reflection unit is provided with a display face and an opposite face which are opposite to each other; the contents displayed by the display unit are projected onto the opposite face of the reflection unit; and the penetrating scattering switching unit is arranged on the opposite face of the reflection unit and can be switched between a scattering state and a transparent state. A liquid crystal display device or an organic light emitting diode display device can be applied to the display device.
Description
Technical field
The invention belongs to the display technique field, be specifically related to a kind ofly can between transparent display mode and nontransparent display mode, switch the display device that transparency is controlled.
Background technology
Recently, along with the development of infotech, transparent display technique more causes people's concern, and transparent display technique is having important application aspect public demonstration, virtual reality, the man-machine interaction.Transparent display has penetrability to a certain degree, thereby the user can see the information of demonstration screen display and the actual scenery behind the display screen simultaneously, and transparent display is applicable to building, vehicle window, shopper window etc.
The ultimate principle of existing a kind of transparent display is as follows: as shown in Figure 1, display unit 2 is incident upon content scioptics 3 on the reflecting plate 12, reflex to again on the part reflective semitransparent film 11, because part reflective semitransparent film 11 can make the light portion reflection, the part that are mapped on it see through, therefore eyes 5 can be seen the demonstration image (from display unit 2) by part reflective semitransparent film 11 reflections, also can see through part reflective semitransparent film 11 and see real scenery 4.
The inventor finds that there are the following problems at least in the prior art: in the existing transparent display, because the reflectivity/transmitance of part reflective semitransparent film is fixed, therefore its adaptability is relatively poor, transparency can not change, and only have transparent display mode, can not between transparent display mode and nontransparent display mode, switch.
Summary of the invention
Technical matters to be solved by this invention comprises,, transparency uncontrollable problem relatively poor for existing transparent display adaptability, and providing a kind of can switch the display device that transparency is controlled between transparent display mode and nontransparent display mode.
The technical scheme that solution the technology of the present invention problem adopts is a kind of display device, comprising: 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 seeing through the scattering switch unit, it is arranged on the opposite face of described reflector element, and the described scattering switch unit that sees through can switch between scattering states and clear state.
Preferably, describedly see through the electrode that the scattering switch unit comprises polymer dispersed liquid crystal film and is used for control polymer dispersed liquid crystal film state.
Further preferably, described electrode is transparency electrode.
Further preferably, in the described polymer dispersed liquid crystal film, liquid crystal droplet is evenly distributed in the solid-state organic polymer matrix, and 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 comprises for the content that display unit is shown and projects projecting unit on the opposite face of described reflector element.
Further preferably, described projecting unit comprises the incidence surface of described reflector element, and described incidence surface is convex surface.
Preferably, described projecting unit comprises at least one independently 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.
Since display device of the present invention have can between scattering states and clear state, switch see through the scattering switch unit, therefore the state that sees through the scattering switch unit by control can be realized the control to the display device transparency, and then has realized the switching of display device between transparent display mode and nontransparent display mode.
Description of drawings
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 numeral is: 1, reflector element; 11, part reflective semitransparent film; 12, reflecting plate; 13, display surface; 14, opposite face; 2, display unit; 3, projecting unit; 4, scenery; 5, human eye; 9, see through the scattering switch unit.
Embodiment
For making those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Embodiment 1:
The present embodiment provides a kind of display device, and it comprises: 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 seeing through the scattering switch unit, it is arranged on the opposite face of described reflector element, and the described scattering switch unit that sees through can switch between scattering states and clear state.
Since display device of the present invention have can between scattering states and clear state, switch see through the scattering switch unit, the state that therefore sees through the scattering switch unit by control can be realized the control to the display device transparency.That is to say, when needs use display device as transparent display, be in clear state so that see through the scattering switch unit, at this moment, display device is transparent display mode; In like manner, when the needs display device is used as nontransparent display device, be in scattering states so that see through the scattering switch unit, at this moment, display device is nontransparent display mode, and then has realized the switching of display device between transparent display mode and nontransparent display mode.Be understood that, when being between scattering states and the clear state through the scattering switch unit, the display device of this moment will have corresponding transparency, that is to say, can come by the transparency that sees through the scattering switch unit transparency of control display device.
Embodiment 2:
The present embodiment provides a kind of display device, and as shown in Figure 2, it comprises: transparent reflector element 1, and it has relative display surface 13 and opposite face 14; Display unit 2, the content of its demonstration are projected onto on the opposite face 14 of reflector element 1; See through scattering switch unit 9, as shown in the figure, it is arranged on the opposite face 14 of described reflector element 1, and seeing through scattering switch unit 9 can switch between scattering states and clear state.
Preferably, describedly see through the electrode (not shown in FIG.) that scattering switch unit 9 comprises polymer dispersed liquid crystal film (Polymer Dispersed Liquid Crystal, PDLC) and is used for control polymer dispersed liquid crystal film state.Polymer dispersed liquid crystal film is the liquid crystal droplet that Uniform Dispersion is small in the polymeric substrates and the film that forms.
Why the preferred polymers dispersed liquid crystal film is because it has scattering states and clear state two states.Specifically, under scattering state, when light incides polymer dispersed liquid crystal film, because the effective refractive index of light by liquid crystal droplet differs greatly with effective refractive index by polymkeric substance, Multi reflection and refraction occur at the interface of liquid crystal droplet and polymkeric substance in light, emergent light is scattering state, and this moment, polymer dispersed liquid crystal film presented opaque state; When adding electric field on the polymer dispersed liquid crystal film, liquid crystal molecule is orientated along direction of an electric field, if the refractive index of selected liquid crystal equates or approximately equal with the refractive index of polymkeric substance, then reflection and refraction no longer occur in light in polymer dispersed liquid crystal film, but directly transmission is gone out, and this moment, polymer dispersed liquid crystal film presented pellucidity; Remove external electric field, liquid crystal droplet returns to again initial homogeneously dispersed state under the effect of matrix elastic energy, and this moment, polymer dispersed liquid crystal film recovered scattering states.As seen, polymer dispersed liquid crystal film has the electric control optical switch characteristic under the effect of electric field, and, the electric field level that adds by change, can control the degree of orientation (namely changing the scattering of light degree) of liquid crystal molecule, thereby change the transparency of polymer dispersed liquid crystal film, and then change the transparency of display device.
In the present embodiment, the electric field of control polymer dispersed liquid crystal film realized by described electrode, and electrode can be arranged in the two ends of polymer dispersed liquid crystal film, certainly other designs also can, as long as can realize to the polymer dispersed liquid crystal film external electric field.Be understandable that, described electrode is transparency electrode (such as the ITO electrode) preferably.
See through preferably polymer dispersed liquid crystal film of scattering switch unit 9 in the present embodiment, the Polymer Dispersed Liquid Crystal panel that in fact can present pellucidity also can be realized, just Polymer Dispersed Liquid Crystal panel volume is larger, is unfavorable for the lightening design of display device.
Further preferably, described polymer dispersed liquid crystal film is when its clear state, and described liquid crystal droplet, polymeric matrix refractive index are identical.Because this moment, liquid crystal droplet and polymeric matrix have consisted of a basic uniformly medium without obvious optics interface in the polymer dispersed liquid crystal film, so scattering occurs incident light hardly, polymer dispersed liquid crystal film is transparence, and transparency is higher.
As shown in Figure 2, the content that display unit 2 shows can be projected onto on the opposite face 14 of reflector element 1, and owing to light can reflect at opposite face 14, thereby so that human eye 5 can be seen at reflector element 1 content of demonstration.Display unit 2 is LCDs or organic light-emitting diode (OLED) display screen preferably, certainly, other display screens also meet the requirements can, be understood that, the resolution of display unit 2 is higher, then the display effect of display device is better, and is more clear.
Preferably, described display device also comprises for the content that display unit 2 is shown and projects projecting unit 3 on the opposite face 14 of described reflector element 1.That is to say, the effect of projecting unit 3 is that the content with display unit 2 projects on the opposite face 14, meets design requirement as long as can just achieve this end.
As shown in Figure 2, described projecting unit 3 preferably comprises at least one independently lens, and wherein, projecting unit 3 can be lens, also can be a lens combination.
Why selecting lens or lens combination is projecting unit 3, because we are by adjusting the position relationship of object distance (display unit 2 is to the distance of projecting unit 3) and focal length (focal length of lens or lens combination), can change the size that is incident upon the displaying contents on the opposite face 14, to satisfy us to the demand of the big or small display device of difference.
Be understandable that, concrete Lens Design and light path design can have various ways, do not repeat them here, as long as can be so that the content on the display unit 2 projects on the opposite face 14 is requirement according to the invention.
What need to further specify is, the content that described display unit 2 shows is on the opposite face 14 that is incident upon described reflector element 1 by projecting unit 3 time, certain distortion may occur, therefore to guarantee display effect, just need to carry out certain repairing to the pixel on the display unit 2, this repairing is called revisal, and concrete revisal form need to be according to the different situations specific design, and the present embodiment is not done restriction.
Further preferably, shown in Fig. 3, reflector element 1 is tabular, and described projecting unit 3 is the incidence surface of described reflector element 1, and described incidence surface is convex surface.That is to say, when reflector element 1 when being tabular, projecting unit 3 can increase separately lens or lens combination, and directly the incidence surface of reflector element 1 is processed, and formation can be by it so that the content of display unit 2 be incident upon the convex surface on the opposite face 14.
Fig. 2, reflector element 1 shown in Figure 3 are tabular, and in fact, described reflector element 1 is part reflective semitransparent film preferably also.Reflectivity/the transmitance of part reflective semitransparent film is fixed, and also can realize transparent demonstration.But this moment, described projecting unit 3 is at least one lens independently preferably, and this is because part reflective semitransparent film is thinner, is not suitable for incidence surface is processed.
Obviously, the display device in the various embodiments described above can also comprise polymer dispersed liquid crystal film driving circuit, give control circuit and the power supply of display unit input signal, they can arrange respectively or integrated setting, do not do restriction at this.
Be understandable that, above embodiment only is the illustrative embodiments that adopts for principle of the present invention is described, yet the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement also are considered as protection scope of the present invention.
Claims (9)
1. a display device is characterized in that, 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
See through the scattering switch unit, it is arranged on the opposite face of described reflector element, and the described scattering switch unit that sees through can switch between scattering states and clear state.
2. display device according to claim 1 is characterized in that, describedly sees through the electrode that the scattering switch unit comprises polymer dispersed liquid crystal film and is used for control polymer dispersed liquid crystal film state.
3. display device according to claim 2 is characterized in that, described electrode is transparency electrode.
4. display device according to claim 2, in the described polymer dispersed liquid crystal film, liquid crystal droplet is evenly distributed in the solid-state organic polymer matrix, it is characterized in that, described polymer dispersed liquid crystal film is when clear state, and described liquid crystal droplet, polymeric matrix refractive index are identical.
5. display device according to claim 1 is characterized in that, also comprises:
Be used for the content that display unit shows is projected projecting unit on the opposite face of described reflector element.
6. display device according to claim 5 is characterized in that, described reflector element is tabular, and described projecting unit comprises the incidence surface of described reflector element, and described incidence surface is convex surface.
7. display device according to claim 5 is characterized in that, described projecting unit comprises at least one independently lens.
8. display device according to claim 1 is characterized in that, described reflector element is tabular, or is part reflective semitransparent film.
9. the described display device of any one in 8 according to claim 1 is characterized in that, described display unit is LCDs 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 true CN103323972A (en) | 2013-09-25 |
| CN103323972B 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) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014190656A1 (en) * | 2013-05-27 | 2014-12-04 | 京东方科技集团股份有限公司 | Display device |
| CN105676457A (en) * | 2016-04-08 | 2016-06-15 | 吕佩剑 | Head-mounted display device with multiple flight point views |
| WO2016192378A1 (en) * | 2015-06-05 | 2016-12-08 | 中兴通讯股份有限公司 | Intelligent terminal and intelligent terminal setting method and display method |
| CN106488208A (en) * | 2017-01-03 | 2017-03-08 | 京东方科技集团股份有限公司 | A kind of display device and display methods |
| CN107102467A (en) * | 2017-07-04 | 2017-08-29 | 京东方科技集团股份有限公司 | Image show 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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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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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)
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| 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 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014190656A1 (en) * | 2013-05-27 | 2014-12-04 | 京东方科技集团股份有限公司 | Display device |
| WO2016192378A1 (en) * | 2015-06-05 | 2016-12-08 | 中兴通讯股份有限公司 | Intelligent terminal and intelligent terminal setting method and display method |
| CN105676457A (en) * | 2016-04-08 | 2016-06-15 | 吕佩剑 | Head-mounted display device with multiple flight point views |
| CN106488208A (en) * | 2017-01-03 | 2017-03-08 | 京东方科技集团股份有限公司 | A kind of display device and display methods |
| 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 |
| CN107102467A (en) * | 2017-07-04 | 2017-08-29 | 京东方科技集团股份有限公司 | Image show device |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103323972B (en) | 2016-12-28 |
| WO2014190656A1 (en) | 2014-12-04 |
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