CN202735996U - Three dimensional (3D) touch display - Google Patents
Three dimensional (3D) touch display Download PDFInfo
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- CN202735996U CN202735996U CN 201220397424 CN201220397424U CN202735996U CN 202735996 U CN202735996 U CN 202735996U CN 201220397424 CN201220397424 CN 201220397424 CN 201220397424 U CN201220397424 U CN 201220397424U CN 202735996 U CN202735996 U CN 202735996U
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Abstract
The utility model discloses a three dimensional (3D) display to achieve a 3D touch display which is simple and compact in structure. The 3D touch display comprises a display device, a raster structure and a touch inductive circuit, wherein the raster structure is arranged above the display device and the touch inductive circuit is formed on a raster structure main body.
Description
Technical field
The utility model relates to touch display technique field, relates in particular to a kind of three-dimensional (3D) touch display.
Background technology
The 3D stereo display technique has become an important frontier science and technology field in demonstration field.The 3D stereo display technique comprises helping looks 3D demonstration and bore hole 3D demonstration.Wherein, bore hole 3D is shown as without any need for helping the equipment of looking to watch the demonstration of 3D effect.In bore hole 3D display technique, based on the 3D display of optical grating construction since the advantage such as simple in structure, functional receive much concern, the 3D display is based on binocular parallax and the optical grating construction light-dividing principle is realized 3D stereo display effect, generally comprises 2D flat display apparatus and optical grating construction.
Along with the development of 3D stereo display technique and the people increase to the demand of product, now also less with the 3D display of touch function, generally speaking, the 3D touch display realizes that the method that touches is: touch-screen directly is set above the 3D display, namely above the optical grating construction of 3D display touch-screen is set.Especially for the 3D touch display of liquid crystal grating structure, touch-screen is positioned at the polaroid top.But its structure of 3D touch display that adopts this method to realize is thicker and complicated, and cost is higher.
The utility model content
A kind of 3D touch display that the utility model embodiment provides, a kind of simple and compact for structure and have a 3D display of touch function in order to realize.
A kind of 3D touch display that the utility model embodiment provides comprises:
Display device, be positioned at optical grating construction and the touch induction circuit of described display device top, described touch induction circuit is formed on the described optical grating construction body.
The 3D touch display that the utility model provides by directly at the optical grating construction body touch induction circuit being set, realizes having the 3D display of touch function.With respect to prior art existing touch-screen is set above optical grating construction directly, the 3D touch display that the utility model provides is simple in structure, and compact, realizes that cost is lower easily.
Description of drawings
The one-piece construction synoptic diagram of the 3D touch display that Fig. 1 provides for the utility model embodiment;
The parallax baffle optical grating construction synoptic diagram with touch induction circuit that Fig. 2 provides for the utility model embodiment;
The parallax baffle optical grating construction synoptic diagram with touch induction circuit and protective seam that Fig. 3 provides for the utility model embodiment;
The liquid crystal grating structural representation with touch induction circuit that Fig. 4 provides for the utility model embodiment;
The 3D touch display structural representation with parallax baffle optical grating construction that Fig. 5 provides for the utility model embodiment;
The 3D touch display structural representation with liquid crystal grating structure that Fig. 6 provides for the utility model embodiment;
Conductive film layer structural representation on the substrate of the liquid crystal grating structure that Fig. 7 provides for the utility model embodiment;
The another kind that Fig. 8 provides for the utility model embodiment has the 3D touch display structural representation of liquid crystal grating structure.
Embodiment
The utility model embodiment provides a kind of 3D touch display, in order to realize a kind of simple in structure and compact 3D touch display.
The utility model embodiment forms touch induction circuit by the optical grating construction body at the 3D display, realizes having the 3D display of touch function, and this 3D touch display is simple in structure, light, thin, saves cost.
The below simply introduces the displaying principle of bore hole 3D display.
The 3D display comprises 2D display device (display device with picture element array structure) and is positioned on the described 2D display device and can realizes the optical grating construction of 3D function.
Optical grating construction is light-permeable and the lighttight optics that is carved with according to certain rules a large amount of cuttings (or lines), or passes through according to certain rules light-permeable and the lighttight optics of the Formation of liquid crystals of arrangement, can manifest stereoscopic picture plane on special plane.
The 3D display effect is: two of people are horizontally separated on two different positions, viewed subject image exists a parallax, the three-dimensional variation of the degree of depth that image with parallax can be experienced a three-dimensional by the mankind's brain, Here it is so-called 3D displaying principle or principle of stereoscopic vision.Different viewing angles can be seen different images.If perpendicular to two placements, because two different to the viewing angles of optical grating construction, thereby two meetings see two different images, thereby produce stereoscopic sensation with optical grating construction for we.
Described optical grating construction comprises parallax baffle optical grating construction and liquid crystal grating structure.
The parallax baffle optical grating construction is to realize by forming light and dark strip pattern at the printing of substrate or film or photoetching light screening material, and therefore this pattern can only make display work in the 3D display mode in case determine and can't change.The liquid crystal grating structure can realize 2D and two kinds of display modes of 3D, and can carry out the switching between 2D and two kinds of display modes of 3D.The liquid crystal grating structure is equivalent to a liquid crystal display, this liquid crystal can be stable twisted nematic (Twisted Nematic, TN) liquid crystal, liquid crystal is filled between upper substrate and the infrabasal plate, one side of the upper substrate that contacts with liquid crystal and a side of the infrabasal plate that contacts with liquid crystal are respectively arranged with the electrode for the location liquid crystal so that liquid crystal under the effect of electric field along electrode spread.Which kind of shape the electrode that is used for the location liquid crystal is, which kind of shape liquid crystal just is arranged in.Light is gone out by the diffraction by slit between the electrode, forms light and dark striped.Wherein the contacted side of at least one substrate and liquid crystal is provided with strip shaped electric poles, and the electrode of the contacted side setting of another substrate and liquid crystal can be a monoblock conducting film laminar electrode.This monoblock conducting film laminar electrode and described strip shaped electric poles form electric field.When giving the electrifying electrodes on described two substrates, corresponding regional light tight of strip shaped electric poles, all the other regional printing opacities, formation printing opacity and light tight separately effect.The utility model embodiment forms touch induction circuit at described optical grating construction body, realizes the touch function of 3D display.
Below with reference to accompanying drawing the technical scheme that the utility model embodiment provides is described.
Referring to Fig. 1, the 3D touch display that the utility model embodiment provides comprises:
Wherein, display device 1 can be liquid crystal indicator or other 2D display device; Optical grating construction 2 can be parallax baffle optical grating construction and liquid crystal grating structure.
Referring to Fig. 2, the parallax baffle optical grating construction comprises: grating substrate 21, be formed on the shading strip pattern 22 on grating substrate 21 and the contacted side of display device.Touch induction circuit 3 is formed on the opposite side (without a side of shading strip pattern) of the grating substrate 21 of parallax baffle optical grating construction.
Preferably, referring to Fig. 3, in order to prevent that pointing direct contact touch induction circuit can scratch circuit, comprises layer protective layer 7 above the shown touch induction circuit 3, for the protection of touch induction circuit 3.This protective seam 7 can be the insulating material such as flexiplast or clear glass.Because the touch-screen that present embodiment provides is to locate by the variation realization touch point of the coupling capacitance between finger and the touch induction circuit; even form coupling capacitance so there is layer protective layer also can not affect between finger and the touch induction circuit on the touch induction circuit, realize touching the location.
Referring to Fig. 4, the liquid crystal grating structure comprises: upper substrate 61, infrabasal plate 62, be filled in the liquid crystal 63 between upper substrate 61 and the infrabasal plate 62, and be positioned on the upper substrate 61 with the electrode 64 of liquid crystal 63 contacted sides and infrabasal plate 62 on the electrode 65 of liquid crystal 63 contacted sides.
Be applied with the electrode 64 of certain voltage and electrode 65 forms electric fields, can so that liquid crystal 63 according to the pattern location of electrode.
Preferably, on upper substrate 61, be not formed with touch induction circuit 3 with liquid crystal 63 contacted sides as shown in Figure 4.Perhaps
Preferably, on upper substrate 61, be formed with touch induction circuit 3 with liquid crystal 63 contacted sides, be used for realizing the touch function (Fig. 4 is not shown) of 3D display.Can to realize touching the principle of location similar with protective seam is set on the touch induction circuit, and touch induction circuit is arranged on, and also can accurately realize touching the location with liquid crystal 63 contacted sides on the substrate 61.Need not in this case protective seam is set again, because touch induction circuit and staff separate by upper substrate 61, can not scratch touch induction circuit, upper substrate 61 is in fact as protective seam protection touch induction circuit.
Below by specific embodiment the technical scheme that the utility model provides is described.
Embodiment one:
Be the parallax baffle optical grating construction for optical grating construction, realize having the 3D display of touch function.
Referring to Fig. 5, the 3D touch display that the utility model embodiment provides comprises: display device 1, be positioned at optical grating construction 2 on the display device 1, be positioned at the touch induction circuit 3 on optical grating construction 2 bodies, and be positioned at the protective seam 7 on the touch induction circuit 3.This touch induction circuit 3 is positioned at not the side with display device 1 contacted optical grating construction 2.
As shown in Figure 5, be provided with optical grating construction 2 above the liquid crystal indicator, be used for realizing that 3D shows.
This optical grating construction is the parallax baffle optical grating construction.The parallax baffle optical grating construction can only make display work in the 3D display mode, because the shading strip pattern on the optical grating construction is fixed.Particularly, can be by at transparency carrier, such as glass substrate, perhaps printing or chemical wet etching light screening material form light and dark color strip-shaped pattern and realize on the film.The liquid crystal grating structure can realize 2D and two kinds of display modes of 3D.
As shown in Figure 5, the parallax baffle optical grating construction specifically comprises: grating substrate 21, be formed on the grating substrate 21 the shading strip pattern 22 with display device 1 a contacted side, touch induction circuit 3 is formed at the opposite side (without a side of shading strip pattern 22) of grating substrate 21.Also be provided with layer protective layer 7 on the touch induction circuit 3, be positioned on the touch induction circuit 3 for the protection of touch induction circuit 3.This protective seam 7 can be transparent insulation substrate, such as glass substrate, also can be the flexiplast insulating film layer.
Realization has the 3D display of touch function, in the specific implementation process, and can be in the following way:
Do not have a side of shading strip pattern to form one deck conductive film layer (such as indium tin oxide ITO) by coating process at the grating substrate, by described conductive film layer is carried out chemical wet etching technique, form the touch induction circuit with certain pattern.At described touch induction circuit protective seam is set, for example places a transparent glass substrate at described touch induction circuit and paste the layer of transparent plastic sheeting as protective seam as protective seam or at described touch induction circuit.
Place the parallax baffle optical grating construction that is formed with touch induction circuit and protective seam in existing display device; by optical cement (Optical Clear Adhesive; OCA) optical grating construction and display device are glued together, the side with shading strip pattern contacts with display device.Described optical cement is for having the extraordinary double faced adhesive tape of optically transparent one deck.
Described coating process can be to realize by methods such as evaporation or sputters.The touch induction circuit of described formation can be the capacitance touch sensor circuit or be the resistive touch sensor circuit, can be the single-layer type touch induction circuit, also can be the multiple field touch induction circuit.Can be that not have the pattern touch induction circuit also can be the touch induction circuit with certain pattern.
Need to prove that the touch induction circuit that present embodiment provides can apply alternating current or have the DC current realization coupling capacitance that part exchanges, thereby realizes touching the location.
The utility model embodiment forms touch induction circuit at optical grating construction without a side of shading strip pattern, has both realized the 3D display effect, realized again touch function, and the compact conformation of 3D touch display has been realized gentlier, thinner 3D touch display.In addition, the technological process of the 3D touch display of this kind structure is simple, realizes that cost is lower.
And the position coordinates point decision-making system of described touch induction circuit and display links to each other, and realizes the accurate location of touch point, and this all belongs to prior art, repeats no more here.
Embodiment two:
The optical grating construction that the utility model embodiment provides is the liquid crystal grating structure, realizes having the 3D display of touch function by the liquid crystal grating structure.
The liquid crystal grating structure can be for realizing printing opacity and lighttight optical grating construction by the TN liquid crystal.
Referring to Fig. 6, the 3D display with touch function comprises: display device 1, be positioned at the liquid crystal grating structure 2 on the display device 1, and be formed on the touch induction circuit 3 on the liquid crystal grating structure 2; Particularly, touch induction circuit 3 be formed on the upper substrate of liquid crystal grating structure 2 with the not contacted side of liquid crystal or with the contacted side of liquid crystal (touch induction circuit 3 shown in Figure 6 is formed on liquid crystal grating structure 2 and the not contacted side of liquid crystal).
Lower mask body is introduced the structure of liquid crystal grating structure 2.
3D touch display shown in Figure 6, touch induction circuit 3 are formed on the upper substrate of liquid crystal grating structure and the not contacted side of liquid crystal, and between polaroid 5 and upper substrate.
Liquid crystal grating structure 2 comprises: upper substrate 61, infrabasal plate 62, be filled in the liquid crystal 63 between upper substrate 61 and the infrabasal plate 62, and be positioned on the upper substrate 61 with liquid crystal 63 contacted electrodes 64 and infrabasal plate 62 on liquid crystal 63 contacted electrodes 65.Electrode 64 and electrode 65 can be so that liquid crystal 63 location.
Preferably, described electrode can be formed by the ITO conductive film layer.
Preferably, on upper substrate 61 and the not contacted side of liquid crystal 63, form touch induction circuit 3 by coating process.Be used for realizing the touch function of 3D display.
Described electrode 64 has following set-up mode: in upper substrate 61 and liquid crystal 63 contacted sides one monoblock ITO conductive film layer is set, without photoetching and etching technics (this lateral electrode does not have pattern).The electrode that on infrabasal plate 62, has list structure with liquid crystal 63 contacted side settings.The electrode of this list structure is through one whole layer of conductive film layer formed through chemical wet etching technique.The method for making of electrode is identical with prior art, repeats no more here.
At the liquid crystal 63 between upper substrate 61 and the infrabasal plate 62 in (namely under the effect at electric field) under the effect of electrode 64 and electrode 65 according to the pattern of the electrode 65 on the infrabasal plate 62, a liquid crystal that is listed as in order forms a line, the liquid crystal molecule that is distributed on the electrode with list structure stops passing through of light, and electrodeless zonal ray can pass through.Through the selectively acting of polaroid to light, human eye (left eye) at a time receives piece image (left eye pixel), and human eye (right eye) at a time receives another width of cloth image (right eye pixel).Two width of cloth images are realized 3D effect.
At described upper substrate and the contacted side of liquid crystal one whole layer of electrode is set, and the electrode that has list structure in described infrabasal plate and the contacted side setting of liquid crystal.Such electrode arrangement can shield other electromagnetic signal for the touch induction circuit that is positioned at above the optical grating construction.Both can realize the effect of liquid crystal grating structure, can also so that touch induction circuit is not subjected to the impact of the electromagnetic signal of display device, realize more exactly touch function.
Preferably, also can have in upper substrate 61 and liquid crystal 63 contacted side settings the electrode of list structure, in infrabasal plate 62 and liquid crystal 63 contacted sides the electrode that one whole layer of electrode or setting have list structure is set.
When upper and lower base plate and the contacted side of liquid crystal were provided with the electrode with list structure, as shown in Figure 7, the electrode 64 on the upper substrate 61 was relative with electrode 65 positions on the infrabasal plate 62.Be conducive to formation rule and stable printing opacity and lighttight optical grating construction effect.
Because liquid crystal has selectivity to light, therefore, want to realize that by the liquid crystal grating structure 3D shows, also need to arrange polaroid on optical grating construction; As shown in Figure 6, the 3D touch display that present embodiment provides comprises also and is positioned on the touch induction circuit 3 polaroid 5 that this polaroid can directly be fitted on the described touch induction circuit, can also play the effect of the described touch induction circuit of protection.
The 3D touch display that the utility model provides can also be structure as shown in Figure 8, and the difference of 3D touch display shown in Figure 6 is, touch induction circuit 3 is arranged on the upper substrate 61 of liquid crystal grating structure and liquid crystal 63 contacted sides.Upper substrate 61 is replaced by touch induction circuit 3 with the electrode 64 of liquid crystal 63 contacted sides.This touch induction circuit 3 both can have been realized the function that touches, can also realize locating the function of liquid crystal.But this touch induction circuit can only apply the effect that the DC current that includes the part alternating current realizes touching the location and forms consistent electric field.Because in DC current, add a part of alternating current, can not affect touch induction circuit to the deflection of liquid crystal.But part alternating current wherein can have been realized forming coupling capacitance between finger and the touch induction circuit, and then realizes touching the function of location.
Preferably, 3D touch display shown in Figure 8, the pattern of touch induction circuit 3 are one whole layer of electrode (such as one whole layer of ITO electrode).This be because, one whole layer of function that electrode both can have been realized touching, can also with relative substrate on electrode locate together liquid crystal.And the electrode of the contacted side setting of infrabasal plate and liquid crystal is the electrode with list structure.
Like this, the Pareto diagram of the liquid crystal molecule between upper substrate 61 and the infrabasal plate 62 is determined by the electrode 65 on the infrabasal plate 62.The electrode of upper substrate 61 inboards and the electrode on the infrabasal plate 62 realize making the regularly arranged electric field of liquid crystal molecule, and realize the function of touch sensible.
3D touch display implementation is similar among the implementation of 3D touch display and the embodiment one.In addition, polaroid 5 directly sticks on the outside of optical grating construction, i.e. the outside of the upper substrate of optical grating construction.
The position coordinates point decision-making system of described touch induction circuit and display links to each other, and realizes the accurate location of touch point.
Equally, the touch induction circuit of present embodiment is arranged on the optical grating construction body, uses the upper substrate of optical grating construction as the substrate of touch-screen, or the electrode of use optical grating construction is simultaneously as touch induction circuit.Realized a kind of simple in structure and compact 3D touch display.
The 3D touch display that the utility model provides comprises: display device, be positioned at the optical grating construction on the display device, and be formed on the touch induction circuit on the optical grating construction body; Particularly, touch induction circuit is formed on the optical grating construction body, and the prior art of comparing has been saved the substrate of touch-screen.That is to say that optical grating construction substrate of the present utility model can play the effect of the substrate of carrying touch induction circuit simultaneously.By directly at the optical grating construction body touch induction circuit being set, realized a kind of simple in structure and compact 3D touch display, the implementation procedure of this 3D touch display is simple, and cost is lower.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (10)
1. 3D touch display comprises: display device, be positioned at optical grating construction and the touch induction circuit of described display device top, it is characterized in that described touch induction circuit is formed on the described optical grating construction body.
2. 3D touch display according to claim 1 is characterized in that, described optical grating construction is the parallax baffle optical grating construction, and described touch induction circuit is formed on the described parallax baffle optical grating construction side without the shading strip pattern.
3. 3D touch display according to claim 2 is characterized in that, described 3D touch display also comprises: be positioned at the protective seam on the described touch induction circuit.
4. 3D touch display according to claim 1 is characterized in that, described optical grating construction is the liquid crystal grating structure, and wherein, described touch induction circuit is formed on the upper substrate of described liquid crystal grating structure and the not contacted side of liquid crystal.
5. 3D touch display according to claim 4, it is characterized in that, be formed on the upper substrate of described liquid crystal grating structure electrode with the contacted side of liquid crystal for not having figuratum conductive film layer, the electrode that is formed on the infrabasal plate of liquid crystal grating structure with the contacted side of liquid crystal is the conductive film layer with strip pattern structure.
6. 3D touch display according to claim 5 is characterized in that, described 3D touch display also comprises: be formed at the polaroid on the described touch induction circuit.
7. 3D touch display according to claim 1 is characterized in that, described optical grating construction is the liquid crystal grating structure, and wherein, described touch induction circuit is formed on the upper substrate of described liquid crystal grating structure and the contacted side of liquid crystal.
8. 3D touch display according to claim 7 is characterized in that, described 3D touch display also comprises: be positioned at the upper substrate of described liquid crystal grating structure and the polaroid of the not contacted side of liquid crystal.
9. the described 3D touch display of arbitrary claim is characterized in that according to claim 1-8, and described touch induction circuit is made by indium tin oxide ITO conductive film layer.
10. 3D touch display according to claim 9 is characterized in that, described touch induction circuit is capacitance touch sensor circuit or resistive touch sensor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220397424 CN202735996U (en) | 2012-08-10 | 2012-08-10 | Three dimensional (3D) touch display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220397424 CN202735996U (en) | 2012-08-10 | 2012-08-10 | Three dimensional (3D) touch display |
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| CN 201220397424 Expired - Lifetime CN202735996U (en) | 2012-08-10 | 2012-08-10 | Three dimensional (3D) touch display |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830839A (en) * | 2012-08-10 | 2012-12-19 | 北京京东方光电科技有限公司 | Three-dimensional touch display |
| CN103324001A (en) * | 2013-05-24 | 2013-09-25 | 北京京东方光电科技有限公司 | Touch type naked eye three dimensional optical grating and display device |
| CN106303500A (en) * | 2015-06-24 | 2017-01-04 | 美国技术有限公司 | 3 d display and its manufacture method |
| WO2018040709A1 (en) * | 2016-08-30 | 2018-03-08 | 京东方科技集团股份有限公司 | Parallax barrier, display device, and manufacturing methods thereof |
-
2012
- 2012-08-10 CN CN 201220397424 patent/CN202735996U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830839A (en) * | 2012-08-10 | 2012-12-19 | 北京京东方光电科技有限公司 | Three-dimensional touch display |
| CN102830839B (en) * | 2012-08-10 | 2016-04-13 | 北京京东方光电科技有限公司 | A kind of 3D touch display |
| CN103324001A (en) * | 2013-05-24 | 2013-09-25 | 北京京东方光电科技有限公司 | Touch type naked eye three dimensional optical grating and display device |
| WO2014187041A1 (en) * | 2013-05-24 | 2014-11-27 | 北京京东方光电科技有限公司 | Touch type naked eye three-dimensional grating and display device |
| CN103324001B (en) * | 2013-05-24 | 2016-03-16 | 北京京东方光电科技有限公司 | A kind of touch bore hole 3D grating and display device |
| US9830007B2 (en) | 2013-05-24 | 2017-11-28 | Beijing Boe Optoelectronics Technology Co., Ltd. | Touch naked-eye 3D grating and display device |
| CN106303500A (en) * | 2015-06-24 | 2017-01-04 | 美国技术有限公司 | 3 d display and its manufacture method |
| WO2018040709A1 (en) * | 2016-08-30 | 2018-03-08 | 京东方科技集团股份有限公司 | Parallax barrier, display device, and manufacturing methods thereof |
| US10652524B2 (en) | 2016-08-30 | 2020-05-12 | Boe Technology Group Co., Ltd. | Parallax barrier, display device and manufacturing method thereof |
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Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150713 Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20150713 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20150713 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE TECHNOLOGY GROUP Co.,Ltd. Patentee after: BEIJING BOE OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Address before: 100176 Beijing city in Western Daxing District economic and Technological Development Zone, Road No. 8 Patentee before: BEIJING BOE OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20130213 |