CN102495517A - Back projection system applied to device with transparent desktop - Google Patents
Back projection system applied to device with transparent desktop Download PDFInfo
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- CN102495517A CN102495517A CN2011104288194A CN201110428819A CN102495517A CN 102495517 A CN102495517 A CN 102495517A CN 2011104288194 A CN2011104288194 A CN 2011104288194A CN 201110428819 A CN201110428819 A CN 201110428819A CN 102495517 A CN102495517 A CN 102495517A
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Abstract
The invention relates to a back projection system applied to a device with a transparent desktop. The back projection system comprises a projector, a control main machine, a reflection mirror and a back projection film, the control main machine is connected with the projector, the back projection film is arranged at the back surface of the transparent desktop, the reflection mirror is arranged below the back projection film, a projection opening of the projector faces to the reflection mirror, and images projected by the projector are reflected to the back projection film through the reflection mirror. Through the back projection system of the structure, the frames projected by the projector are reflected to the back projection film through the reflection mirror, thus a reflection mirror needs to be arranged below the transparent desktop only so as to effectively reduce requirements of a display on an installation space and the cost of a household touch induction interaction system, and also ensure that display effect is clear, a display size can be freely regulated, energy is saved, environment is protected and an application range is wider.
Description
Technical field
The present invention relates to the projection display technique field, particularly back-projection system technical field specifically is meant the back-projection system in a kind of device that is applied to have transparent table.
Background technology
In the field of digital furniture,, generally be that traditional capacitance touch screen structure is set below glass like the touch scheme of glass such as desktop, tea table, sales counter, showing stand, show window.
Traditional capacitance touch screen structure comprises transparent touch sensing membrane, and its edge has silver-colored lead to draw and be connected to glass interface FPC extension line, partly connects host computer through control chip then.
But; Because above-mentioned glass touch scheme is used traditional capacitance touch module; And because technical limitation such as induction sensitivity range; The glass that 8-10mm such as desktop, tea table, sales counter, showing stand, show window are thick is too thick, and traditional capacitance touch module can not penetrate usually, causes regular reactionless or react insensitive; The resistive touch screen that has for example occurred, ultrasonic touch screen, infrared touch panel all can not be applied to glazing plate, and existing most of capacitance touch screen can not be applied to glazing plate.Even use the capacitance touch film that can penetrate glass, its installation is also very loaded down with trivial details.
The applicant is in Chinese patent " based on the show-window type touch information display screen and the display systems thereof of touch sensible the film " (patent No.: ZL200910196039.4); Disclose a kind of have highly sensitive; Be applicable to the touch sensible film of glazing plate and glass table top, solved the application limitation of existing capacitance touch film effectively.
But when the touch sensible interactive system of glass desk-top that such touch sensible film is installed on family expenses or family expenses of tea table formation; Still need outfit in addition to be arranged at the display device under the desktop, this has increased the cost of family expenses touch sensible interactive system undoubtedly.Simultaneously, limited space under family expenses glass desk-top or the tea table table top has proposed harsh requirement for the size of display device, and the display that is equipped with the small size high definition has further improved the whole cost of system, also is unfavorable for energy-conserving and environment-protective.Above-mentioned shortcoming has restricted the application of touch sensible film in family expenses touch sensible interactive system.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, provide a kind of installing space of needs less, cheap for manufacturing cost; Display size is adjustable; Display effect is clear, energy-conserving and environment-protective, and range of application comparatively is widely used in the back-projection system in the device with transparent table.
In order to realize above-mentioned purpose, the back-projection system in the device that is applied to have transparent table of the present invention has following formation:
This system comprises projector, main control system, catoptron and rear-projection film; Described main control system connects described projector; Described rear-projection film is arranged at the back side of transparent table; Described catoptron is arranged at described rear-projection film below, and the projection mouth of described projector is towards described catoptron, and the image of described projector projection is on described mirror reflects to described rear-projection film.
This is applied to have in the back-projection system in the device of transparent table; Also comprise touch membrane and touch-control module; Described touch membrane is arranged between described rear-projection film and the described transparent table; The touch sensible signal output part of described touch membrane connects the signal input part of described touch-control module, and the signal output part of described touch-control module connects described main control system.
This is applied to have the back-projection system in the device of transparent table, and described touch membrane is the capacitive sensing film.Also be provided with electromagnetic induction coil around the described capacitive sensing film.
This is applied to have in the back-projection system in the device of transparent table; Described system also comprises the described transparent table of connection and controls its desktop that moves and move control module; Described desktop moves control module and comprises base and movable part; Described transparent table, touch membrane and rear-projection film all are fixedly set on the described movable part, and described movable part activity is fixed on the described base.Described desktop moves control module and comprises tilt control unit, and described tilt control unit is in order to the angle of inclination of controlling described transparent table, touch membrane and rear-projection film and keep described transparent table, touch membrane and the triangular relative position of rear-projection film.This tilt control unit comprises arc-shaped slide rail that is arranged at described base top and the pulley that is arranged at described movable part bottom, and described pulley moves in described arc-shaped slide rail so that described movable part tilts.Described tilt control unit is controlled described transparent table and surface level forms an angle, and the range of adjustment of described angle is that 0 degree is to 30 degree.
This is applied to have in the back-projection system in the device of transparent table; Described desktop moves control module and also comprises the up-down control module, and described up-down control module is in order to control the height of described transparent table, touch membrane, rear-projection film, catoptron and projector.Described up-down control module is controlled described transparent table distance overhead, and the range of adjustment of described distance is 50 centimetres to 75 centimetres.
This is applied to have in the back-projection system in the device of transparent table, and described system also comprises the mirror angle control module, and described mirror angle control module connects described main control system, and in order to control the angle of inclination of described catoptron.
This is applied to have in the back-projection system in the device of transparent table, and described system also comprises load module, and the signal output part of described load module connects described main control system.Described load module comprises keyboard and mouse, and the signal output part of described keyboard and mouse all is connected described main control system.
This is applied to have in the back-projection system in the device of transparent table, and described projector is a kind of in CRT projector, LCD projector, DLP projector, D-ILA projector, sRGB projector and the LCOS micro-projector.Described projector comprises the first projection mouth and the second projection mouth, the described first projection mouth towards described catoptron, the described second projection mouth is towards outside projection screen and curtain wall.The light source of described each projector optionally is set at a kind of " only projecting from the first projection mouth ", " only projecting from the second projection mouth " and " projecting from the first projection mouth and the second projection mouth simultaneously " three kinds of states through reflection repeatedly.
This is applied to have in the back-projection system in the device of transparent table; Described projector has first light source and secondary light source; The light path of described first light source is communicated with the described first projection mouth; The light path of described secondary light source is communicated with the described second projection mouth, and described projector optionally is set at a kind of in " only first light source works ", " only secondary light source work " and " first light source and secondary light source are worked simultaneously " three kinds of states.
This is applied to have in the back-projection system in the device of transparent table; Described projector is the LCOS micro-projector, and the duty of described LCOS micro-projector optionally is set at a kind of in " only the first projection mouth work ", " only second projection mouth work " and " the first projection mouth and the second projection mouth are worked simultaneously " three kinds of states through main control system.
This is applied to have in the back-projection system in the device of transparent table; Described LCOS micro-projector comprises a lens combination; Described lens combination comprises an adjustable lens and a reflective mirror; The projection light source of described LCOS micro-projector is shone to described adjustable lens; The reflection ray of described adjustable lens is towards the described first projection mouth; The incident ray of described adjustable lens is towards described reflective mirror, and the reflection ray of described reflective mirror is set to be all-trans light microscopic so that this LCOS micro-projector works in described " only first projection mouth work " state towards the described second projection mouth through the optionally described adjustable lens of main control system control; Or described adjustable lens is set to semi-permeable mirror so that this LCOS micro-projector works in described " the first projection mouth and the second projection mouth are worked simultaneously " state, or described adjustable lens is set to the full impregnated mirror so that this LCOS micro-projector works in described " only second projection mouth work " state.
This is applied to have in the back-projection system in the device of transparent table; Described transparent table comprises: watch crystal layer, touch sensitive layer and touch controller; Described touch sensitive layer fits in the lower surface of described watch crystal layer; Described rear-projection film fits in the lower surface of described touch sensitive layer, and described touch controller circuit connects described touch sensitive layer and described main control system.
This is applied to have in the back-projection system in the device of transparent table, and described watch crystal layer comprises transparent region, and the size of described transparent region is not less than the size of described touch sensitive layer.
This is applied to have in the back-projection system in the device of transparent table, and described watch crystal layer is the bright watch crystal layer of full impregnated, and the bright watch crystal layer of described full impregnated is big or small identical with described touch sensitive layer.
This is applied to have in the back-projection system in the device of transparent table; Back-projection system in the described device that is applied to have transparent table also comprises a fixing glass layer; Described fixing glass layer central authorities have through hole; Described touch sensitive layer is embedded in the center through hole of described fixing glass layer, and described fixing glass layer also fits in the lower surface of described watch crystal layer.
This is applied to have in the back-projection system in the device of transparent table, is adhesively fixed through transparent colloid between described watch crystal layer and the described touch sensitive layer.
This is applied to have in the back-projection system in the device of transparent table, and described transparent colloid is a kind of in EVA glued membrane, PVB glued membrane, UV glued membrane and the PA glued membrane.
This is applied to have in the back-projection system in the device of transparent table, and the distance between described watch crystal layer and the described touch sensitive layer is not more than 5 millimeters.
This is applied to have in the back-projection system in the device of transparent table, and described watch crystal layer is a tempered glass.
This is applied to have in the back-projection system in the device of transparent table, and described touch sensitive layer is the single-layer touch sensor film.
This is applied to have in the back-projection system in the device of transparent table; Described single-layer touch sensor film is provided with horizontal transparency electrode group and vertical transparency electrode group; Connect through crossover track between the described horizontal transparency electrode group and cross over described vertical transparency electrode, also connect between described vertical transparency electrode group and cross over described horizontal transparency electrode through crossover track.
This is applied to have in the back-projection system in the device of transparent table, and described touch sensitive layer is double-deck touch sensible rete.
This is applied to have in the back-projection system in the device of transparent table; Described touch sensible rete is the capacitance touch sense film; Comprise transparent base membrane layer in this capacitance touch sense film; The inner sensor circuit of described touch sensible film is the wiring pattern structure that described transparent base membrane layer surface is had; Described wiring pattern structure comprises several horizontal parallel touch-control conductor wires and several parallel longitudinal touch-control conductor wires, described horizontal parallel touch-control conductor wire and the mutual vertical formation rectangular node of parallel longitudinal touch-control conductor wire.
This is applied to have in the back-projection system in the device of transparent table; It is banded that described horizontal parallel touch-control conductor wire is; Described parallel longitudinal touch-control conductor wire is wire, and the spacing between two adjacent parallel longitudinal touch-control conductor wires is suitable with the width of described horizontal parallel touch-control conductor wire.
This is applied to have in the back-projection system in the device of transparent table, and described transparent base membrane layer is the electrically conducting transparent complex thin film, and described wiring pattern structure is the etch structures on described electrically conducting transparent complex thin film surface.
This is applied to have in the back-projection system in the device of transparent table, and the surface impedance of described electrically conducting transparent complex thin film is lower than 100 Ω/cm
2
This is applied to have in the back-projection system in the device of transparent table, and the width of the horizontal parallel touch-control conductor wire in the described wiring pattern structure is suitable with the thickness of described watch crystal layer.
This is applied to have in the back-projection system in the device of transparent table, is adhesively fixed through transparent colloid between the described double-deck touch sensible rete.
This is applied to have in the back-projection system in the device of transparent table, and described transparent colloid is a kind of in EVA glued membrane, PVB glued membrane, UV glued membrane and the PA glued membrane.
This is applied to have in the back-projection system in the device of transparent table, and described watch crystal layer comprises central transparent region and the nontransparent zone of outer rim, the size of described central transparent region and described rear-projection film big or small consistent.
This is applied to have in the back-projection system in the device of transparent table, and described touch controller is embedded in the touch sensitive layer of below, the nontransparent zone of outer rim of described watch crystal layer.
This is applied to have in the back-projection system in the device of transparent table, and the described touch sensitive layer that is positioned at below, the nontransparent zone of outer rim has cavity, and described touch controller is arranged in the described cavity, and is filled with the encapsulation filler.
This is applied to have in the back-projection system in the device of transparent table, and described encapsulation filler is silica gel or epoxy resin.
This is applied to have in the back-projection system in the device of transparent table, and described touch sensitive layer is double-deck touch sensible rete, and described touch controller is embedded between the described two-layer touch sensible rete.
This is applied to have in the back-projection system in the device of transparent table, and said touch sensitive layer has peripheral silver-colored lead, said touch controller comprise the data IO port, described data IO port connects the silver-colored lead of described periphery.
This is applied to have in the back-projection system in the device of transparent table, and described data IO port comprises FPC be flexible coupling line and at least one USB interface, and the described FPC line that is flexible coupling connects the silver-colored lead of described periphery.
This is applied to have in the back-projection system in the device of transparent table, and the described bottom that the touch sensitive layer of touch controller is set offers through hole, and described USB interface is arranged in the described through hole.
This is applied to have in the back-projection system in the device of transparent table, and the silver-colored lead of described periphery is arranged at the position at the central transparent region edge of the corresponding described watch crystal layer of described touch sensitive layer.
This is applied to have in the back-projection system in the device of transparent table, and the silver-colored lead of described periphery is nontransparent conductive silver paste coating layer or nontransparent conductive silver paste printed layers.
This is applied to have in the back-projection system in the device of transparent table, and described touch controller is the PCB control panel.
This is applied to have in the back-projection system in the device of transparent table, and the nontransparent zone of described outer rim is the watch crystal layer with dark opaque printed patterns upper surface.
This is applied to have in the back-projection system in the device of transparent table; Back-projection system in the described device that is applied to have transparent table also has electromagnetic induction coil; Described electromagnetic induction coil be arranged at described rear-projection film around, and circuit connects an electromagnetic induction controller.
This is applied to have in the back-projection system in the device of transparent table; Back-projection system in the described device that is applied to have transparent table also comprises peripheral frame, and described watch crystal layer, touch sensitive layer and rear-projection film all are fixedly connected in the described peripheral frame.
This is applied to have in the back-projection system in the device of transparent table; Back-projection system in the described device that is applied to have transparent table also comprises pointer; Described peripheral frame is provided with the pointer standing groove, and described pointer can be positioned in the described pointer standing groove.
This is applied to have in the back-projection system in the device of transparent table, and described pointer is one or both in capacitance pen and the time writer.
This is applied to have in the back-projection system in the device of transparent table, also is provided with screen layer between described touch sensitive layer and the described rear-projection film.
Adopted this invention be applied to have the back-projection system in the device of transparent table, the picture that its projector projects goes out, the mirror reflects through being arranged at the transparent table below is to the rear-projection film; Therefore only need a catoptron is installed below transparent table, effectively reduce requirement, reduced the cost of family expenses touch sensible interactive system for the display device installing space; Simultaneously can guarantee that display effect is clear; But the display size free adjustment, energy-conserving and environment-protective, and range of application is comparatively extensive.
Description of drawings
Fig. 1 is the structural representation of the back-projection system in the device that is applied to have transparent table of the present invention.
Fig. 2 settles the synoptic diagram with transparent table for the back-projection system in the device that is applied to have transparent table of the present invention.
Fig. 3 is arranged at the synoptic diagram of heeling condition for the back-projection system in the device that is applied to have transparent table of the present invention.
Fig. 4 is arranged at the synoptic diagram of lifting state for the back-projection system in the device that is applied to have transparent table of the present invention.
Fig. 5 adopts the synoptic diagram of dual-projection mouth LCOS micro-projector for the device that is applied to have transparent table of the present invention.
Fig. 6 is the light path synoptic diagram of dual-projection mouth LCOS micro-projector.
The structural representation of the touch transparent table that Fig. 7 adopts for the device that is applied to have transparent table of the present invention.
Embodiment
In order more to be expressly understood technology contents of the present invention, the special following examples of lifting specify.
See also shown in Figure 1ly, be the structural representation of the back-projection system in the device that is applied to have transparent table of the present invention.
In one embodiment; Like Fig. 1 and shown in Figure 2; This back-projection system that is applied to have in the device of transparent table comprises projector 1, main control system 2, catoptron 5 and rear-projection film 4, and described main control system 2 connects described projector 1, and described rear-projection film 4 is arranged at the back side of transparent table 9; Described catoptron 5 is arranged at described rear-projection film 4 belows, and the image of described projector 1 projection reflexes on the described rear-projection film 4 through described catoptron 5.Simultaneously; Described system also comprises touch membrane 3 and touch-control module (not shown); Described touch membrane 3 is arranged between described rear-projection film 4 and the described transparent table 9; The touch sensible signal output part of described touch membrane 3 connects the signal input part of described touch-control module, and the signal output part of described touch-control module connects described main control system 2.Described touch membrane 3 is for the capacitive sensing film and be arranged at described capacitive sensing film electromagnetic induction coil on every side; To increase the induction sensitivity of this touch membrane 3; Can be used for induced electricity magnetic pen etc., thereby realize the meticulous perhaps drawing of meticulous lines of writing of gesticulating literal.
Described system also comprises a load module (not shown), and described load module comprises keyboard and mouse, and the signal output part of described keyboard and mouse all is connected described main control system 2.
In a kind of more preferably embodiment; Like Fig. 3 and shown in Figure 4; Described system also comprises the described transparent table of connection and controls its desktop that moves and move control module; Described desktop moves control module and comprises base and movable part, and described transparent table, touch membrane and rear-projection film all are fixedly set on the described movable part, and described movable part activity is fixed on the described base.This desktop moves control module and comprises tilt control unit 6, and described tilt control unit 6 is in order to the angle of inclination of controlling described transparent table 9, touch membrane 3 and rear-projection film 4 and keep described transparent table 9, touch membrane 3 and rear-projection film 4 triangular relative positions.This tilt control unit 6 comprises arc-shaped slide rail that is arranged at described base top and the pulley (not shown) that is arranged at described movable part bottom, and described pulley moves so that described movable part tilts in described arc-shaped slide rail.The described transparent table 9 of these tilt control unit 6 controls is becoming with surface level between 0 degree to the angle of 30 degree to move.
In further preferred embodiment, described desktop moves control module and also comprises up-down control module 7, and described up-down control module 7 is in order to control the height of described transparent table 9, touch membrane 3, rear-projection film 4, catoptron 5 and projector 1.Described transparent table 9 distance is overhead moved between 50 centimetres to 75 centimetres.
Further preferred embodiment in, described desktop moves control module and connects described main control system 2.
More preferably in the embodiment, described system also comprises the mirror angle control module at another kind, and described mirror angle control module connects described main control system 2, and in order to control the angle of inclination of described catoptron.
In another kind of further preferred embodiment, described projector is a kind of in CRT projector, LCD projector, DLP projector, D-ILA projector, sRGB projector and the LCOS micro-projector.Further, described various projector include the first projection mouth and the second projection mouth, the described first projection mouth towards described catoptron, the described second projection mouth is towards outside projection screen and curtain wall.The light source of described each projector optionally is set at a kind of " only projecting from the first projection mouth ", " only projecting from the second projection mouth " and " projecting from the first projection mouth and the second projection mouth simultaneously " three kinds of states through reflection repeatedly.Or; Described projector has first light source and secondary light source; The light path of described first light source is communicated with the described first projection mouth; The light path of described secondary light source is communicated with the described second projection mouth, and described projector optionally is set at a kind of in " only first light source works ", " only secondary light source work " and " first light source and secondary light source are worked simultaneously " three kinds of states.
In a kind of preferred embodiment, like Fig. 5 and (dotted line is the projector light path among the figure) shown in Figure 6, described projector 1 is the LCOS micro-projector.This LCOS micro-projector 1 comprises the first projection mouth 11 and the second projection mouth 12, the described first projection mouth 11 towards described catoptron 5,12 mouthfuls of described second projections are towards outside projection screen or curtain wall 8.This LCOS micro-projector 1 also comprises a lens combination; Described lens combination comprises an adjustable lens 13 and a reflective mirror 14; The projection light source of described LCOS micro-projector 1 is shone to described adjustable lens 13; The reflection ray of described adjustable lens 13 is towards the described first projection mouth 11; The incident ray of described adjustable lens 13 is towards described reflective mirror 14; The reflection ray of described reflective mirror 14 is towards the described second projection mouth 12; Optionally described adjustable lens 13 is set to be all-trans light microscopic so that this LCOS micro-projector 1 works in the state of " only first projection mouth work " through main control system 2 controls, or described adjustable lens 13 is set to semi-permeable mirror so that this LCOS micro-projector 1 works in the state of " the first projection mouth and the second projection mouth are worked simultaneously ", or described adjustable lens 13 is set to the full impregnated mirror so that this LCOS micro-projector 1 works in the state of " only second projection mouth work ".
At another kind more preferably in the embodiment; As shown in Figure 7; Described transparent table comprises: watch crystal layer 15, touch sensitive layer (touch membrane) 3 and touch controller (touch-control module, not shown), and described touch sensitive layer 3 fits in the lower surface of described watch crystal layer 15; Described rear-projection film 4 fits in the lower surface of described touch sensitive layer 3, and described touch controller circuit connects described touch sensitive layer 3 and described main control system.Desktop through this being had touch function combines with back projection, can form one and have the touch interactive system of back projection.
Wherein, described watch crystal layer 15 comprises transparent region, and the size of described transparent region is not less than the size of described touch sensitive layer 3.Be adhesively fixed through transparent colloid between described watch crystal layer 15 and the described touch sensitive layer 3.This transparent colloid can be EVA glued membrane, PVB glued membrane, UV glued membrane or PA glued membrane.Described watch crystal layer 15 is a tempered glass.
In a kind of further preferred embodiment, described watch crystal layer 15 is the bright watch crystal layer of full impregnated, and the bright watch crystal layer of described full impregnated is big or small identical with described touch sensitive layer 3.
In another kind of further preferred embodiment; Back-projection system in the described device that is applied to have transparent table also comprises a fixing glass layer; Described fixing glass layer central authorities have through hole; Described touch sensitive layer 3 is embedded in the center through hole of described fixing glass layer, and described fixing glass layer also fits in the lower surface of described watch crystal layer 15.Distance between described watch crystal layer 15 and the described touch sensitive layer 3 is not more than 5 millimeters.
Further preferred embodiment in, described touch sensitive layer 3 is the single-layer touch sensor film.This single-layer touch sensor film is provided with horizontal transparency electrode group and vertical transparency electrode group; Connect through crossover track between the described horizontal transparency electrode group and cross over described vertical transparency electrode, also connect between described vertical transparency electrode group and cross over described horizontal transparency electrode through crossover track.
Further preferred embodiment in, described touch sensitive layer 3 is double-deck touch sensible rete.Wherein, Described touch sensible rete is the capacitance touch sense film; Comprise transparent base membrane layer in this capacitance touch sense film; The inner sensor circuit of described touch sensible film is the wiring pattern structure that described transparent base membrane layer surface is had, and described wiring pattern structure comprises several horizontal parallel touch-control conductor wires and several parallel longitudinal touch-control conductor wires, described horizontal parallel touch-control conductor wire and the mutual vertical formation rectangular node of parallel longitudinal touch-control conductor wire.It is banded that described horizontal parallel touch-control conductor wire is, and described parallel longitudinal touch-control conductor wire is wire, and the spacing between two adjacent parallel longitudinal touch-control conductor wires is suitable with the width of described horizontal parallel touch-control conductor wire.Described transparent base membrane layer is the electrically conducting transparent complex thin film, and described wiring pattern structure is the etch structures on described electrically conducting transparent complex thin film surface.The surface impedance of described electrically conducting transparent complex thin film is lower than 100 Ω/cm
2The width of the horizontal parallel touch-control conductor wire in the described wiring pattern structure is suitable with the thickness of described watch crystal layer 15.Be adhesively fixed through transparent colloid between the described double-deck touch sensible rete.
In another further preferred embodiment, described watch crystal layer 15 comprises central transparent region and the nontransparent zone of outer rim, the size of described central transparent region and described rear-projection film 4 big or small consistent.Described touch controller is embedded in the touch sensitive layer 3 of below, the nontransparent zone of the outer rim of described watch crystal layer 15.The described touch sensitive layer 3 that is positioned at below, the nontransparent zone of outer rim has cavity, and described touch controller is arranged in the described cavity, and is filled with the encapsulation filler, and this encapsulation filler can be silica gel or epoxy resin.Described touch sensitive layer 3 is double-deck touch sensible rete, and then described touch controller can be embedded between the described two-layer touch sensible rete.Said touch sensitive layer 3 has peripheral silver-colored lead; The silver-colored lead of described periphery is nontransparent conductive silver paste coating layer or nontransparent conductive silver paste printed layers; Said touch controller comprise the data IO port, described data IO port connects the silver-colored lead of described periphery.Described data IO port comprises FPC be flexible coupling line and at least one USB interface, and the described FPC line that is flexible coupling connects the silver-colored lead of described periphery.The described bottom that the touch sensitive layer 3 of touch controller is set offers through hole, and described USB interface is arranged in the described through hole.
This is applied to have in the back-projection system in the device of transparent table, and the silver-colored lead of described periphery is arranged at the position at the central transparent region edge of described touch sensitive layer 3 corresponding described watch crystal layers 15.Described touch controller is the PCB control panel.The nontransparent zone of described outer rim is the watch crystal layer 15 with dark opaque printed patterns upper surface.
In another kind of further preferred embodiment; Back-projection system in the described device that is applied to have transparent table also has electromagnetic induction coil; Described electromagnetic induction coil be arranged at described rear-projection film 4 around, and circuit connects an electromagnetic induction controller.This back-projection system that is applied to have in the device of transparent table also comprises peripheral frame and pointer; Described watch crystal layer 15, touch sensitive layer 3 and rear-projection film 4 all are fixedly connected in the described peripheral frame; Described peripheral frame is provided with the pointer standing groove, and described pointer can be positioned in the described pointer standing groove.
In a kind of preferred embodiment, also be provided with screen layer between described touch sensitive layer 3 and the described rear-projection film 4.
In practical application, back-projection system of the present invention comprises LCOS micro-projector, main control system, catoptron, rear-projection film, touch membrane and travel(l)ing rest.Main control system connects described LCOS micro-projector and travel(l)ing rest respectively; Described rear-projection film is arranged at the top of travel(l)ing rest; Described touch membrane is arranged on the rear-projection film; Catoptron is arranged at the below of rear-projection film and fixes with travel(l)ing rest, and the LCOS micro-projector is fixed in a side of travel(l)ing rest, so that the image of this projector projection is on described mirror reflects to described rear-projection film.This back-projection system is placed under any transparent table, and when the contact desktop, touch membrane is sensed contact, and the touch sensible signal is sent to a touch-control module through output terminal, and touch-control module exports signal to connected main control system again.Thereby realize the touch controllable function of any transparent table as touch-screen.
Wherein, described travel(l)ing rest comprises tilt control unit, and this tilt control unit makes transparent table can be positioned to become between 0 degree to 30 degree with surface level through promoting a side of described transparent table, touch membrane and rear-projection film synchronously.Should move control module and also comprise the up-down control module; Described up-down control module comprises the electric lift that places on the base; Described transparent table, touch membrane, rear-projection film, catoptron and projector all are arranged on this electric lift, can transparent table distance overhead be controlled at 50 centimetres to 75 centimetres through this lifting unit.Described tilt control unit all is connected described main control system with the up-down control module.
Be applied at needs under the situation of outer projections, described LCOS micro-projector also can comprise the first and second two projection mouths and lens combination.Wherein, the first projection mouth towards described catoptron, the second projection mouth is towards outside projection screen and curtain wall.Described lens combination comprises an adjustable lens and a reflective mirror; The projection light source of described LCOS micro-projector is shone to described adjustable lens; The reflection ray of described adjustable lens is towards the described first projection mouth; The incident ray of described adjustable lens is towards described reflective mirror, and the reflection ray of described reflective mirror is towards the described second projection mouth.In use; The user can be easily through main control system control optionally adjustable lens be set to the light microscopic that is all-trans so that this LCOS micro-projector works in the state of " only first projection mouth work ", at this moment; Transparent table constitutes a touch sensible interactive system promptly as a touch-screen.The user also can be set to semi-permeable mirror by described adjustable lens; So that this LCOS micro-projector works in the state of " the first projection mouth and the second projection mouth are worked simultaneously "; At this moment, transparent table is a touch screen, and form one comprise touch screen and outer projections demo system.Certainly, the user can also be set to the full impregnated mirror by described adjustable lens, so that this LCOS micro-projector works in the state of " only second projection mouth work ", at this moment, this system is merely the optical projection system of a routine.The switching of above-mentioned multiple duty is very easy, makes the back-projection system in the device that is applied to have transparent table of the present invention can be applicable to various use situations, has expanded its range of application to greatest extent.
Adopted this invention be applied to have the back-projection system in the device of transparent table, the picture that its projector projects goes out, the mirror reflects through being arranged at the transparent table below is to the rear-projection film; Therefore only need a catoptron is installed below transparent table, effectively reduce requirement, reduced the cost of family expenses touch sensible interactive system for the display device installing space; Simultaneously can guarantee that display effect is clear; But the display size free adjustment, energy-conserving and environment-protective, and range of application is comparatively extensive.
In this instructions, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (55)
1. the back-projection system in the device that is applied to have transparent table; It is characterized in that; Described system comprises projector, main control system, catoptron and rear-projection film; Described main control system connects described projector, and described rear-projection film is arranged at the back side of transparent table, and the image of described projector projection is on described mirror reflects to described rear-projection film.
2. the back-projection system in the device that is applied to have transparent table according to claim 1; It is characterized in that; Described system also comprises touch membrane and touch-control module; Described touch membrane is arranged between described rear-projection film and the described transparent table, and the touch sensible signal output part of described touch membrane connects the signal input part of described touch-control module, and the signal output part of described touch-control module connects described main control system.
3. the back-projection system in the device that is applied to have transparent table according to claim 2 is characterized in that described touch membrane is the capacitive sensing film.
4. the back-projection system in the device that is applied to have transparent table according to claim 3 is characterized in that, described touch membrane also comprises the electromagnetic induction coil that is arranged at around the described capacitive sensing film.
5. the back-projection system in the device that is applied to have transparent table according to claim 2; It is characterized in that; Described system also comprises the described transparent table of connection and controls its desktop that moves and move control module; Described desktop moves control module and comprises base and movable part, and described transparent table, touch membrane and rear-projection film all are fixedly set on the described movable part, and described movable part activity is fixed on the described base.
6. the back-projection system in the device that is applied to have transparent table according to claim 5; It is characterized in that; Described desktop moves control module and comprises tilt control unit, and described tilt control unit is in order to the angle of inclination of controlling described transparent table, touch membrane and rear-projection film and keep described transparent table, touch membrane and the triangular relative position of rear-projection film.
7. the back-projection system in the device that is applied to have transparent table according to claim 6; It is characterized in that; Described tilt control unit comprises arc-shaped slide rail that is arranged at described base top and the pulley that is arranged at described movable part bottom, and described pulley moves in described arc-shaped slide rail so that described movable part tilts.
8. the back-projection system in the device that is applied to have transparent table according to claim 6 is characterized in that described tilt control unit is controlled described transparent table and surface level forms an angle, and the range of adjustment of described angle is that 0 degree is to 30 degree.
9. the back-projection system in the device that is applied to have transparent table according to claim 6; It is characterized in that; Described desktop moves control module and also comprises the up-down control module, and described up-down control module is in order to control the height of described transparent table, touch membrane, rear-projection film, catoptron and projector.
10. the back-projection system in the device that is applied to have transparent table according to claim 9 is characterized in that described up-down control module is controlled described transparent table distance overhead, and the range of adjustment of described distance is 50 centimetres to 75 centimetres.
11. the back-projection system in the device that is applied to have transparent table according to claim 5 is characterized in that described desktop moves control module and connects described main control system.
12. the back-projection system in the device that is applied to have transparent table according to claim 11; It is characterized in that; Described system also comprises the mirror angle control module; Described mirror angle control module connects described main control system, and in order to control the angle of inclination of described catoptron.
13. the back-projection system in the device that is applied to have transparent table according to claim 1 is characterized in that described system also comprises load module, the signal output part of described load module connects described main control system.
14. the back-projection system in the device that is applied to have transparent table according to claim 13 is characterized in that described load module comprises keyboard and mouse, the signal output part of described keyboard and mouse all is connected described main control system.
15. according to the back-projection system in each described device that is applied to have transparent table in the claim 1 to 14; It is characterized in that described projector is a kind of in CRT projector, LCD projector, DLP projector, D-ILA projector, sRGB projector and the LCOS micro-projector.
16. the back-projection system in the device that is applied to have transparent table according to claim 15; It is characterized in that; Described projector comprises the first projection mouth and the second projection mouth; The described first projection mouth towards described catoptron, the described second projection mouth is towards outside projection screen and curtain wall.
17. the back-projection system in the device that is applied to have transparent table according to claim 16; It is characterized in that the light source of described projector optionally is set at a kind of " only projecting from the first projection mouth ", " only projecting from the second projection mouth " and " projecting from the first projection mouth and the second projection mouth simultaneously " three kinds of states through reflection repeatedly.
18. the back-projection system in the device that is applied to have transparent table according to claim 16; It is characterized in that; Described projector has first light source and secondary light source; The light path of described first light source is communicated with the described first projection mouth; The light path of described secondary light source is communicated with the described second projection mouth, and described projector optionally is set at a kind of in " only first light source works ", " only secondary light source work " and " first light source and secondary light source are worked simultaneously " three kinds of states.
19. the back-projection system in the device that is applied to have transparent table according to claim 16; It is characterized in that; Described projector is the LCOS micro-projector, and the duty of described LCOS micro-projector optionally is set at a kind of in " only the first projection mouth work ", " only second projection mouth work " and " the first projection mouth and the second projection mouth are worked simultaneously " three kinds of states through main control system.
20. the back-projection system in the device that is applied to have transparent table according to claim 19; It is characterized in that; Described LCOS micro-projector comprises a lens combination; Described lens combination comprises an adjustable lens and a reflective mirror; The projection light source of described LCOS micro-projector is shone to described adjustable lens; The reflection ray of described adjustable lens is towards the described first projection mouth; The incident ray of described adjustable lens is towards described reflective mirror, and the reflection ray of described reflective mirror is set to be all-trans light microscopic so that this LCOS micro-projector works in described " only first projection mouth work " state towards the described second projection mouth through the optionally described adjustable lens of main control system control; Or described adjustable lens is set to semi-permeable mirror so that this LCOS micro-projector works in described " the first projection mouth and the second projection mouth are worked simultaneously " state, or described adjustable lens is set to the full impregnated mirror so that this LCOS micro-projector works in described " only second projection mouth work " state.
21. the back-projection system in the device that is applied to have transparent table according to claim 1; It is characterized in that; Described transparent table comprises: watch crystal layer, touch sensitive layer and touch controller; Described touch sensitive layer fits in the lower surface of described watch crystal layer, and described rear-projection film fits in the lower surface of described touch sensitive layer, and described touch controller circuit connects described touch sensitive layer and described main control system.
22. the back-projection system in the device that is applied to have transparent table according to claim 21 is characterized in that described watch crystal layer comprises transparent region, the size of described transparent region is not less than the size of described touch sensitive layer.
23. the back-projection system in the device that is applied to have transparent table according to claim 22; It is characterized in that; Described watch crystal layer is the bright watch crystal layer of full impregnated, and the bright watch crystal layer of described full impregnated is big or small identical with described touch sensitive layer.
24. the back-projection system in the device that is applied to have transparent table according to claim 22; It is characterized in that; Back-projection system in the described device that is applied to have transparent table also comprises a fixing glass layer; Described fixing glass layer central authorities have through hole, and described touch sensitive layer is embedded in the center through hole of described fixing glass layer, and described fixing glass layer also fits in the lower surface of described watch crystal layer.
25. the back-projection system in the device that is applied to have transparent table according to claim 21 is characterized in that, is adhesively fixed through transparent colloid between described watch crystal layer and the described touch sensitive layer.
26. the back-projection system in the device that is applied to have transparent table according to claim 25 is characterized in that, described transparent colloid is a kind of in EVA glued membrane, PVB glued membrane, UV glued membrane and the PA glued membrane.
27. the back-projection system in the device that is applied to have transparent table according to claim 21 is characterized in that the distance between described watch crystal layer and the described touch sensitive layer is not more than 5 millimeters.
28. the back-projection system in the device that is applied to have transparent table according to claim 21 is characterized in that described watch crystal layer is a tempered glass.
29. the back-projection system in the device that is applied to have transparent table according to claim 21 is characterized in that described touch sensitive layer is the single-layer touch sensor film.
30. the back-projection system in the device that is applied to have transparent table according to claim 29; It is characterized in that; Described single-layer touch sensor film is provided with horizontal transparency electrode group and vertical transparency electrode group; Connect through crossover track between the described horizontal transparency electrode group and cross over described vertical transparency electrode, also connect between described vertical transparency electrode group and cross over described horizontal transparency electrode through crossover track.
31. the back-projection system in the device that is applied to have transparent table according to claim 21 is characterized in that described touch sensitive layer is double-deck touch sensible rete.
32. the back-projection system in the device that is applied to have transparent table according to claim 31; It is characterized in that; Described touch sensible rete is the capacitance touch sense film; Comprise transparent base membrane layer in this capacitance touch sense film; The inner sensor circuit of described touch sensible film is the wiring pattern structure that described transparent base membrane layer surface is had, and described wiring pattern structure comprises several horizontal parallel touch-control conductor wires and several parallel longitudinal touch-control conductor wires, described horizontal parallel touch-control conductor wire and the mutual vertical formation rectangular node of parallel longitudinal touch-control conductor wire.
33. the back-projection system in the device that is applied to have transparent table according to claim 32; It is characterized in that; It is banded that described horizontal parallel touch-control conductor wire is; Described parallel longitudinal touch-control conductor wire is wire, and the spacing between two adjacent parallel longitudinal touch-control conductor wires is suitable with the width of described horizontal parallel touch-control conductor wire.
34. the back-projection system in the device that is applied to have transparent table according to claim 32; It is characterized in that; Described transparent base membrane layer is the electrically conducting transparent complex thin film, and described wiring pattern structure is the etch structures on described electrically conducting transparent complex thin film surface.
35. the back-projection system in the device that is applied to have transparent table according to claim 34 is characterized in that the surface impedance of described electrically conducting transparent complex thin film is lower than 100 Ω/cm
2
36. the back-projection system in the device that is applied to have transparent table according to claim 32 is characterized in that the width of the horizontal parallel touch-control conductor wire in the described wiring pattern structure is suitable with the thickness of described watch crystal layer.
37. the back-projection system in the device that is applied to have transparent table according to claim 31 is characterized in that, is adhesively fixed through transparent colloid between the described double-deck touch sensible rete.
38. the back-projection system according in the described device that is applied to have transparent table of claim 37 is characterized in that, described transparent colloid is a kind of in EVA glued membrane, PVB glued membrane, UV glued membrane and the PA glued membrane.
39. the back-projection system in the device that is applied to have transparent table according to claim 21; It is characterized in that; Described watch crystal layer comprises central transparent region and the nontransparent zone of outer rim, the size of described central transparent region and described rear-projection film big or small consistent.
40. the back-projection system according in the described device that is applied to have transparent table of claim 39 is characterized in that, described touch controller is embedded in the touch sensitive layer of below, the nontransparent zone of outer rim of described watch crystal layer.
41. according to the back-projection system in the described device that is applied to have transparent table of claim 40; It is characterized in that; The described touch sensitive layer that is positioned at below, the nontransparent zone of outer rim has cavity, and described touch controller is arranged in the described cavity, and is filled with the encapsulation filler.
42. the back-projection system according in the described device that is applied to have transparent table of claim 41 is characterized in that described encapsulation filler is silica gel or epoxy resin.
43. the back-projection system according in the described device that is applied to have transparent table of claim 40 is characterized in that described touch sensitive layer is double-deck touch sensible rete, described touch controller is embedded between the described two-layer touch sensible rete.
44. according to the back-projection system in the described device that is applied to have transparent table of claim 40; It is characterized in that; Said touch sensitive layer has peripheral silver-colored lead; Said touch controller comprise the data IO port, described data IO port connects the silver-colored lead of described periphery.
45. according to the back-projection system in the described device that is applied to have transparent table of claim 44; It is characterized in that; Described data IO port comprises FPC be flexible coupling line and at least one USB interface, and the described FPC line that is flexible coupling connects the silver-colored lead of described periphery.
46. the back-projection system according in the described device that is applied to have transparent table of claim 45 is characterized in that the described bottom that the touch sensitive layer of touch controller is set offers through hole, described USB interface is arranged in the described through hole.
47. the back-projection system according in the described device that is applied to have transparent table of claim 44 is characterized in that the silver-colored lead of described periphery is arranged at the position at the central transparent region edge of the corresponding described watch crystal layer of described touch sensitive layer.
48. the back-projection system according in the described device that is applied to have transparent table of claim 44 is characterized in that the silver-colored lead of described periphery is nontransparent conductive silver paste coating layer or nontransparent conductive silver paste printed layers.
49. the back-projection system according in the described device that is applied to have transparent table of claim 40 is characterized in that described touch controller is the PCB control panel.
50. the back-projection system according in the described device that is applied to have transparent table of claim 39 is characterized in that the nontransparent zone of described outer rim is the watch crystal layer with dark opaque printed patterns upper surface.
51. the back-projection system in the device that is applied to have transparent table according to claim 21; It is characterized in that; Back-projection system in the described device that is applied to have transparent table also has electromagnetic induction coil; Described electromagnetic induction coil be arranged at described rear-projection film around, and circuit connects an electromagnetic induction controller.
52. the back-projection system in the device that is applied to have transparent table according to claim 21; It is characterized in that; Back-projection system in the described device that is applied to have transparent table also comprises peripheral frame, and described watch crystal layer, touch sensitive layer and rear-projection film all are fixedly connected in the described peripheral frame.
53. according to the back-projection system in the described device that is applied to have transparent table of claim 52; It is characterized in that; Back-projection system in the described device that is applied to have transparent table also comprises pointer; Described peripheral frame is provided with the pointer standing groove, and described pointer can be positioned in the described pointer standing groove.
54. the back-projection system according in the described device that is applied to have transparent table of claim 53 is characterized in that described pointer is one or both in capacitance pen and the time writer.
55. the back-projection system according in each described device that is applied to have transparent table in the claim 21 to 54 is characterized in that, also is provided with screen layer between described touch sensitive layer and the described rear-projection film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104288194A CN102495517A (en) | 2011-12-19 | 2011-12-19 | Back projection system applied to device with transparent desktop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104288194A CN102495517A (en) | 2011-12-19 | 2011-12-19 | Back projection system applied to device with transparent desktop |
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| Publication Number | Publication Date |
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| CN102495517A true CN102495517A (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104288194A Pending CN102495517A (en) | 2011-12-19 | 2011-12-19 | Back projection system applied to device with transparent desktop |
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Application publication date: 20120613 |