CN201278142Y - Infrared touching back projection display - Google Patents
Infrared touching back projection display Download PDFInfo
- Publication number
- CN201278142Y CN201278142Y CNU2008201470555U CN200820147055U CN201278142Y CN 201278142 Y CN201278142 Y CN 201278142Y CN U2008201470555 U CNU2008201470555 U CN U2008201470555U CN 200820147055 U CN200820147055 U CN 200820147055U CN 201278142 Y CN201278142 Y CN 201278142Y
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- infrared
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- touch panel
- touch screen
- signal control
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- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000011900 installation process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to an infrared touch back projection monitor which belongs to the multimedia field of a computer and comprises a display screen and an infrared touch system, wherein the infrared touch system comprises at least two groups of independent X and Y touch screen subassemblies, and each group of touch screen subassembly forms an infrared circuit subassembly by two rows of infrared transmitting elements and infrared receiving elements, which are relatively arranged on a printed circuit board and a signal control circuit, every two touch screen subassemblies form one detecting area, and each touch screen subassembly is detachably and fixedly connected with the shell of a display device. Because each touch screen subassembly is detachably and fixedly connected with the shell of a display device, the touch screen subassembly becomes a modularized selecting assembly part of a monitor, thereby the infrared touch screen subassemblies can be installed at any time according to user requirements to form the infrared touch back projection monitor. The utility model has the advantages of compact structure, high stability, high resolution, firmness, durability, fast reaction, convenient transportation and installation, simple debug and low cost.
Description
Technical field
The utility model relates to field of computer multimedia, particularly relates to a kind of infrared touch rear projection display.
Background technology
Along with the popularity rate of computer improves day by day, increasing people obtains information from network, and the man-machine conversation mode of this simple maturation of touch display is admitted and adopts by increasing people.Existing touch display commonly used is generally the finished product touch-screen is installed on the common display, and as electric resistance touch screen, surface acoustic wave touch screen, capacitance touch screen all are mounted in the surface of cathode-ray tube of display and form touch display.This class touch display has some shortcomings of following aspect: the firstth, and installation process is very complicated, need open display, just can finish installment work by the professional person, has brought great inconvenience for general domestic consumer; The secondth, touch-screen generally need be done particular design according to display casing shape and structure, lack versatility, and this touch-screen costs an arm and a leg.
Domestic patent 200720118800.9 discloses a kind of integrated infrared touch display, comprise a display screen, and be centered around the face shield frame that is used for fixing the display screen bonnet around the display screen and is complementary with it, with one be installed in display the place ahead, form by the touch-screen that four printed circuit board (PCB)s that a plurality of infrared transmitting tubes and infrared receiving tube be installed respectively surround, frame around the face shield frame inboard is provided with the infrared-filtered adhesive tape, exceed face shield frame plane, this adhesive tape and face shield shaped as frame are in aggregates, and touch-screen is installed in the face shield frame.Though such structure can solve problems such as the collimation error and sealing property, but because the size of the display device that uses is increasing at present, in large-screen display equipment, display area size can reach more than 100 inches, if form by combination, then can be up to more than 200 inches, if touch the mode of display device installs according in the past composition, adopt 200720118800.9 described built-in installations, make that the size of touch panel unit is very huge, cause transportation and difficulty is installed.In addition, in large-screen display equipment especially combination, the zone that in fact is fit to write operation only accounts for the sub-fraction of whole viewing area, if in whole zone touch panel unit is installed, has then increased the Installation and Debugging difficulty, causes great waste.
The utility model content
The novel purpose of this use is to provide a kind of compact conformation, and is highly stable, and high resolving power is sturdy and durable, reaction velocity is fast, easy transportation and installation, and debugging is simple, and infrared touch rear projection display with low cost solves the defective of the existence of prior art.
To achieve these goals, the utility model adopts following technical scheme:
A kind of infrared touch rear projection display, comprise rear-projection display screen, the infrared touch system that the separate touch panel unit of at least two groups is formed, every group of touch panel unit is installed in infrared emission component on the printed circuit board (PCB) and infrared receiver component and signal control circuit relatively by two row and forms infrared circuit unit, per two groups of touch panel units are formed a surveyed area, are dismountable fastening installation between touch panel unit and the display device shell.
The structure of this infrared circuit unit can be: wherein the infrared circuit unit of row comprises single infrared receiving tube array and signal control circuit, another is listed as infrared circuit unit and comprises single infrared transmitting tube array and signal control circuit, and infrared receiving tube is corresponding one by one with infrared transmitting tube.The structure of this infrared circuit unit also can be: the infrared circuit unit of two row of every group of touch panel unit comprises array and the signal control circuit of being made up of infrared receiving tube and infrared transmitting tube, and infrared receiving tube is corresponding one by one with infrared transmitting tube.Two groups of separate touch panel units forming surveyed area both can adopt the same structure circuit unit, and promptly two groups are all used a certain in above-mentioned two kinds of circuit component configurations; Also can adopt the circuit unit of different structure, promptly wherein one group of touch panel unit uses a kind of in above-mentioned two kinds of circuit component configurations, and another group is used the another kind in above-mentioned two kinds of circuit component configurations.
Display screen can be DLP rear-projection, CRT rear-projection or LCD rear-projection display screen etc.The copper-clad surface of P.e.c. with the vertical or parallel installation of the display surface of display screen, perhaps becomes arbitrary acute angle angle to install.
This touch panel unit is installed between the surface and display device of display device, and be installed together with dismountable fastening means between the display device shell, promptly to be that of display device is modular select piece installing to this touch panel unit, the length of the infrared emission component of this group touch panel unit or infrared receiver component array can according to required detection zone and length and width select, the position of its setting also can be determined according to the position of required surveyed area, and can be according to the installation site of the position change touch panel unit of different situations monitored area, form two groups of touch panel units of surveyed area and can not form frame type structure, but independently be arranged on the desired position.Optional two groups of above touch panel units are installed in the appropriate location on the display device, form one or more surveyed area, and these two groups above touch panel units form the shaped as frame structure around can being trapped among display device, also can not constitute frame type structure.
Compared with prior art, the utility model has following advantage:
Because between infrared touch screen assembly and the display device is to be fastenedly connected with dismountable, one of display is modular to select piece installing so touch panel unit has just become, and can the infrared touch screen assembly be installed at any time according to user's demand and constitute touch-screen display.Simultaneously, touch panel unit is installed on the real world devices in the independent mode that is provided with, and can form frame type structure, also can not form frame type structure, can realize that giant-screen touches the function that shows, also can adjust the position of writing regional place as required with the circuit board assemblies of lesser amt.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model;
Fig. 2 is the infrared touch structural representation of a kind of embodiment of the utility model;
Fig. 3 is the infrared touch structural representation of the another kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:
In conjunction with Fig. 1, shown in Figure 2, Fig. 1 is an one-piece construction synoptic diagram of the present utility model, and it comprises display screen 101, infrared touch system 102, multi-functional cabinet 103, computing machine 104, video presenter 105.Fig. 2 is the infrared touch structural representation of a kind of embodiment of the utility model, surveyed area 205 is viewing areas of large screen back projection display, described infrared touch system comprises that two groups of separate X and Y touch assembly 201,202,203,204, every group of touch panel unit comprises the infrared circuit unit 201 and 203 of the same type that two row are oppositely arranged, 202 and 204, this infrared circuit unit not only comprises infrared emission component but also comprise infrared receiver component and signal processing circuit, the 205th, the surveyed area of large screen display, the touch panel unit 201 of vertical direction is corresponding with 203, the touch panel unit 202 of horizontal direction is corresponding with 204, surveyed area 205 of common formation, touch panel unit 201,202,203,204 circuit board assemblies that use are identical, both comprised on the every circuit board assemblies that infrared emission component also comprised infrared receiver component, infrared emission component 206 and 207 is alternately distributed on circuit board assemblies, touch panel unit 201,202,203, the 204th, be fixed on the display device with a kind of independent form that is provided with, can form a frame type structure, also can not form a frame type structure, touch panel unit forms and is dismountable fastening being installed together between a standalone module and the display device shell.Adopt this kind installation method, can adjust surveyed area flexibly and easily, reduce the quantity of circuit board assemblies, make that assembling is more convenient, save the cost of infrared touch display greatly.
Fig. 3 is the synoptic diagram of another embodiment infrared touch structure of the utility model, every group of touch panel unit is listed as the infrared circuit unit 301 and 303 that is installed in relatively on the printed circuit board (PCB) by two, 302 and 304, wherein two row infrared circuit units 301 and 304 include infrared emission component 306 and signal processing circuit, other two groups of corresponding infrared circuit units 303 and 302 include infrared receiver component 307 and signal processing circuit, and per two groups of touch panel units are formed a surveyed area 305.Touch panel unit 301,302,303,304 forms with independent setting are fixed on the display, can form a frame type structure, also can form a frame type structure, touch panel unit forms and is dismountable fastening being installed together between a standalone module and the display device shell.Adopt this kind installation method, can adjust surveyed area flexibly and easily, reduce the quantity of circuit board assemblies, make that assembling is more convenient, save the cost of infrared touch display greatly.
The mounting means of the infrared touch system described in the utility model also can be transformed a little to rear projection display, infrared touch system is installed in the face shield frame of rear projection display, constitutes all-in-one with display.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (3)
1. infrared touch rear projection display, comprise rear-projection display screen, infrared touch system, it is characterized in that: described infrared touch system comprises two groups of separate touch panel units of X, Y at least, every group of touch panel unit is installed in infrared emission component on the printed circuit board (PCB) and infrared receiver component and signal control circuit relatively by two row and forms infrared circuit unit, per two groups of touch panel units are formed a surveyed area, are dismountable fastening installation between touch panel unit and the display device shell.
2. infrared touch rear projection display as claimed in claim 1, it is characterized in that: the infrared circuit unit of two row of every group of touch panel unit comprises array and the signal control circuit of being made up of infrared receiving tube and infrared transmitting tube, infrared receiving tube is corresponding one by one with infrared transmitting tube, and infrared receiving tube and infrared transmitting tube are electrically connected by signal control circuit.
3. infrared touch rear projection display as claimed in claim 1, it is characterized in that: the infrared circuit unit of wherein row of every group of touch panel unit comprises single infrared receiving tube array and signal control circuit, another is listed as infrared circuit unit and comprises single infrared transmitting tube array and signal control circuit, infrared receiving tube is corresponding one by one with infrared transmitting tube, and infrared receiving tube and infrared transmitting tube are electrically connected by signal control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201470555U CN201278142Y (en) | 2008-08-29 | 2008-08-29 | Infrared touching back projection display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201470555U CN201278142Y (en) | 2008-08-29 | 2008-08-29 | Infrared touching back projection display |
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| Publication Number | Publication Date |
|---|---|
| CN201278142Y true CN201278142Y (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201470555U Expired - Fee Related CN201278142Y (en) | 2008-08-29 | 2008-08-29 | Infrared touching back projection display |
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| Country | Link |
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| CN (1) | CN201278142Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011079592A1 (en) * | 2009-12-28 | 2011-07-07 | 武汉全真光电科技有限公司 | Projection display system and desktop computer |
-
2008
- 2008-08-29 CN CNU2008201470555U patent/CN201278142Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011079592A1 (en) * | 2009-12-28 | 2011-07-07 | 武汉全真光电科技有限公司 | Projection display system and desktop computer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20160829 |