CN208351489U - The LCD device of identification interaction object - Google Patents
The LCD device of identification interaction object Download PDFInfo
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- CN208351489U CN208351489U CN201820711156.4U CN201820711156U CN208351489U CN 208351489 U CN208351489 U CN 208351489U CN 201820711156 U CN201820711156 U CN 201820711156U CN 208351489 U CN208351489 U CN 208351489U
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Abstract
The utility model provides a kind of LCD device of identification interaction object, belong to field of image recognition, it include protective layer, liquid crystal display layer and backlight from top to bottom, the backlight includes PCB bottom plate, visible LED lamp, infrared light filling LED light and the infrared camera of pattern for identification are distributed on PCB bottom plate, it is equipped with above PCB bottom plate for the homogenized even smooth membrane layer of light to visible LED lamp and the sending of infrared light filling LED light, even smooth membrane layer is equipped with through-hole corresponding with infrared camera.Compared with prior art, the LCD device, object is interacted in the case where being adjacent to screen, passing through even smooth membrane layer and liquid crystal display layer irradiation by the light that infrared light filling LED light issues has the interaction object of graphic code, graphic code information is read by infrared camera, and real-time tracking position on the screen can normally show the content of liquid crystal display simultaneously because the light that visible LED lamp issues is homogenized by even smooth membrane layer in this way.
Description
Technical field
The utility model relates to field of image recognition, especially a kind of LCD device of identification interaction object.
Background technique
The scheme of existing identification interaction object has 2 kinds: most commonly projection scheme, by projector and thermal camera
It is placed on behind back-projection screen, the content of projection can be shown before back-projection screen, when there is identified object to be adjacent to screen surface, infrared photography
Machine can capture the figure of identification object, to realize the recognition and tracking of image, the display effect when major defect of the program
Generally, anti-light performance is poor, needs bigger rear-projection space, and stability is poor.Another kind is to be based on capacitance touching control screen, system
The capacitance touching control pedestal made, the pedestal have preset different touch point combinations, have passed through the setting of program, these touch point groups
Closing is certain customized object, then the pedestal is carried identification object, to realize identification object, program major defect is,
Can only be practical as demonstrating, because he can not capture the figure other than presetting, due to the limitation of touch-control membrane technology, when identification object ratio
When more, pedestal will be bigger, to influence the experience of demonstration.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of LCD device of identification interaction object, such as two
The graphic codes such as dimension code, bar code can be read in the case where being adjacent to screen, and real-time tracking position on the screen, together
When it can normally show the content of liquid crystal display.
The technical solution adopted in the utility model are as follows:
A kind of LCD device of identification interaction object, include protective layer from top to bottom, liquid crystal display layer and
Backlight, the backlight include PCB bottom plate, and visible LED lamp, infrared light filling LED light are distributed on PCB bottom plate and is used for
The infrared camera of identification icon, PCB bottom plate top are equipped with for the light to visible LED lamp and the sending of infrared light filling LED light
Homogenized even smooth membrane layer, even smooth membrane layer are equipped with through-hole corresponding with infrared camera.
Preferably, the even smooth membrane layer includes the even mating plate being arranged in above PCB bottom plate and is arranged on even mating plate
Even smooth film, through-hole are arranged on even mating plate.
Preferably, the protective layer is tempered glass.
Compared with prior art, the utility model has the beneficial effects that: the utility model provides a kind of liquid crystal display
Device interacts object in the case where being adjacent to screen, is irradiated by the light that infrared light filling LED light issues across liquid crystal display layer
Pattern with graphic code reads graphic code information, and real-time tracking position on the screen by infrared camera, simultaneously because can
The light that light-exposed LED light issues is homogenized by even smooth membrane layer, can normally show the content of liquid crystal display in this way.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the LCD device of identification interaction object provided by the utility model；
Fig. 2 is the light of liquid crystal display layer in a kind of LCD device of identification interaction object provided by the utility model
Road schematic diagram；
Fig. 3 is infrared light filling LED light in a kind of LCD device of identification interaction object provided by the utility model
Issue the light path schematic diagram of light；
Fig. 4 is that infrared camera receives in a kind of LCD device of identification interaction object provided by the utility model
The light path schematic diagram of light.
Specific embodiment
Preferred embodiment provided by the utility model is illustrated with reference to the accompanying drawings.
Fig. 1 to Fig. 4, for a kind of preferred implementation of the LCD device of identification interaction object provided by the utility model
Mode.As shown in Figures 1 to 4, the LCD device includes protective layer 10,20 and of liquid crystal display layer from top to bottom
Backlight 30, the backlight 30 include PCB bottom plate 31, and visible LED lamp 32, infrared light filling LED is distributed on PCB bottom plate 31
The infrared camera 34 of lamp 33 and for identification pattern is equipped with above PCB bottom plate 31 for visible LED lamp 32 and infrared
The homogenized even smooth membrane layer 35 of light that light filling LED light 33 issues, even smooth membrane layer 35 are equipped with corresponding with infrared camera 34
Through-hole 3501, in this way when the interaction object with graphic code is tightly attached on the protective layer 10 of liquid crystal display layer 20, PCB bottom plate 31
Upper visible LED lamp 32 and infrared light filling LED light 33 issue light, since the light of infrared light filling LED light 33 sending is with stronger
Through characteristic sequentially passes through even smooth membrane layer 35, liquid crystal display layer 20 and 10 direct irradiation of protective layer in the figure of interaction object 100
On shape code 101, and occur to reflect the image information that the infrared camera 24 for being extended through-hole 3501 collects identification graphic code；And
The visible light that visible LED lamp 32 is issued, penetrability is poor, decays in even smooth film layer 35, thus energy convert to
Even smooth film layer 35 keeps its shinny, as the light source of liquid crystal display layer 20, and observer can be prevented to observe even smooth film layer 35
Subsequent other structures component, observer just can be appreciated that one piece of display effect such as common liquid crystals screen, and in appearance
On from the point of view of, do not add any equipment, such as infrared touch frame, nanometer touch film, capacitance touching control film, active label equipment can be real
Now identification interaction object 100.The graphic code 101 of interaction 100 bottom surface of object is generally two dimensional code or bar code etc., and adopts
It is printed with papery carbon ink.
The even smooth membrane layer 35 includes that the even mating plate 351 of 31 top of PCB bottom plate is arranged in and is arranged above even mating plate
Even smooth film 352, through-hole 3501 be arranged on even mating plate 351, infrared camera 34 pass through even mating plate 351 on through-hole 3501 connect
Receive the infrared ray being reflected back from the graphic code of interaction object 100.
It is worth noting that, the light that the visible LED lamp issues belongs to limit of visible spectrum；The infrared light filling LED
Lamp can be the infrared lamp of different wavelength range；The infrared camera can be other infrared cameras of different wavelength range.Institute
Protective layer 10 is stated to be made of tempered glass；The even mating plate 351 uses PS(polystyrene), PMMA(poly-methyl methacrylate
Ester), PC(polycarbonate), PP(polypropylene), PVC(polyvinyl chloride), PET(polyester resin) etc. materials make to be formed；It is described even
Light film 352 uses PS(polystyrene), PMMA(polymethyl methacrylate), PC(polycarbonate), PP(polypropylene), PVC(it is poly-
Vinyl chloride), PET(polyester resin) etc. materials make to be formed.
The method of LCD device identification interaction object, comprising the following steps:
1) the interaction object 100 with graphic code 101 is placed in 10 front of protective layer of liquid crystal display layer 20；
2) visible LED lamp 32 and infrared light filling LED light 33 emit beam on the PCB bottom plate 31；
3) light that visible LED lamp 32 issues is homogenized by even smooth membrane layer 34 provides backlight for liquid crystal display layer 20, by liquid
The visible light that brilliant display layer 20 is reflected back is recycled in even smooth 35 backlight of membrane layer；The light that infrared light filling LED light 33 issues is successively
On the graphic code 101 that even smooth membrane layer 34, liquid crystal display layer 20 and protective layer 10 are radiated at interaction object 100；
4) light of illumination pattern code 101 occurs to reflect and is acquired by infrared camera 35 and identify that the image of graphic code 101 is believed
Breath.
The even smooth membrane layer 35 is equipped with through-hole 3501 corresponding with infrared camera 34.The even smooth membrane layer 35 wraps
It includes the even mating plate 351 that 31 top of PCB bottom plate is set and the even smooth film 352 of even 351 top of mating plate is set, through-hole 3501 is arranged
On even mating plate 351, infrared camera 34 passes through the through-hole 3501 on even mating plate 351 and receives from the graphic code for interacting object 100
On the infrared ray that is reflected back.
In conclusion the technical solution of the utility model sufficiently effective can realize above-mentioned purpose of utility model, and this
The structure and the principle of work and power of utility model have all adequately been verified in embodiment, can reach expected effect and mesh
, under the premise of without departing substantially from the principles of the present invention and essence, numerous variations can be made to the embodiment of utility model
Or modification.Therefore, the utility model includes all replacement contents being previously mentioned in range in patent claim, any
The made equivalence changes in present utility model application the scope of the patents, all within the scope of the patents of category this case application.
Claims (3)
1. a kind of LCD device of identification interaction object, includes protective layer, liquid crystal display layer and back from top to bottom
Light source, it is characterised in that: the backlight includes PCB bottom plate, and visible LED lamp, infrared light filling LED are distributed on PCB bottom plate
The infrared camera of lamp and for identification pattern, PCB bottom plate top are equipped with for visible LED lamp and infrared light filling LED
The homogenized even smooth membrane layer of light that lamp issues, even smooth membrane layer are equipped with through-hole corresponding with infrared camera.
2. the LCD device of identification interaction object according to claim 1, it is characterised in that: the even smooth diaphragm
Layer includes the even mating plate being arranged in above PCB bottom plate and the even smooth film being arranged on even mating plate, and through-hole is arranged on even mating plate.
3. the LCD device of identification interaction object according to claim 1, it is characterised in that: the protective layer is
Tempered glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820711156.4U CN208351489U (en) | 2018-05-14 | 2018-05-14 | The LCD device of identification interaction object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820711156.4U CN208351489U (en) | 2018-05-14 | 2018-05-14 | The LCD device of identification interaction object |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208351489U true CN208351489U (en) | 2019-01-08 |
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ID=64889337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820711156.4U Active CN208351489U (en) | 2018-05-14 | 2018-05-14 | The LCD device of identification interaction object |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208351489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108629223A (en) * | 2018-05-14 | 2018-10-09 | 深圳盈天下视觉科技有限公司 | The LCD device of the interactive object of identification and its method of the interactive object of identification |
-
2018
- 2018-05-14 CN CN201820711156.4U patent/CN208351489U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108629223A (en) * | 2018-05-14 | 2018-10-09 | 深圳盈天下视觉科技有限公司 | The LCD device of the interactive object of identification and its method of the interactive object of identification |
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