CN201984458U

CN201984458U - Optical screen input equipment

Info

Publication number: CN201984458U
Application number: CN2011201253095U
Authority: CN
Inventors: 金义明; 郑永发
Original assignee: Youqi Science & Technology Co Ltd
Current assignee: Youqi Science & Technology Co Ltd
Priority date: 2011-04-26
Filing date: 2011-04-26
Publication date: 2011-09-21
Anticipated expiration: 2021-04-26

Abstract

Optical screen input equipment comprises a carrier, two optical positioning modules and a control module, wherein the carrier is used for fixing a display screen; the two optical positioning modules are fixed at the corners of the carrier respectively, and each optical positioning module comprises a light emitter for generating light and a light receiver for detecting the reflected light generated by the light emitted by the light emitter and reflected by an object; and the control module obtains the detection data of the optical positioning modules, positions the absolute position the object in the screen operating area according to the included angle between the object and the two optical positioning modules, converts the absolute position into a screen position according to the parallel table established based on the absolute position and the screen operating area, and converts the screen position into a cursor displayed on the screen operating area of the display screen.

Description

The optical profile type screen input equipment

Technical field

The utility model relates to a kind of input equipment, particularly relates to a kind of optical profile type screen input equipment.

Background technology

The at present common input equipment for the display screen use has to comprise for example resistive touch plate, capacitive type touch pad or the like; Wherein, though resistive touch plate cost is lower, insensitive phenomenon is arranged easily if often press same position; Though capacitive type touch pad is comparatively sensitive, along with the manufactured size of capacitive type touch pad is big more, its yield is low more, causes the problem of cost increase, can't widespread usage on large-sized screen.

Summary of the invention

The purpose of this utility model, provide a kind of cost lower and the collocation arbitrary dimension all spendable optical profile type screen input equipment of display screen.

The utility model optical profile type screen input equipment collocation one defines the display screen in a screen operator district, and this optical profile type screen input equipment comprises a carrier, two optical alignment modules and a control module.

This carrier is for fixing this display screen; Two optical alignment modules are individually fixed in the corner of this carrier, and respectively this optical alignment module comprises the catoptrical optical receiver that the optical transmitting set of a generation light and the light that this optical transmitting set of detecting produces are reflected by an object.

This control module electrically connects this display screen and this optical alignment module, and has location logic module, a correlation logic assembly and a vernier logic module; This locatees logic module, obtain the detecting data of this optical alignment module respectively and utilize this object and two optical alignment modules between angle and orient the absolute position of this object in the screen operator district, this correlation logic assembly is converted to a screen position according to the table of comparisons that this absolute position and this screen operator district set up with this absolute position, and this vernier logic module is converted to this screen position a vernier that manifests in the screen operator district of this display screen.

Preferable, this carrier has that a capping, a bottom surface, one connect side between capping and the bottom surface, several are positioned at this bottom surface and are used for fixing the fastener that the fixed part, of this display screen fastens this capping and this bottom surface each other, and one is positioned at this bottom surface and for the holding part of the described optical alignment module of installing and this control module.

Preferable, this control module also comprises a calibration logic assembly, this calibration logic assembly shows several calibration points in the screen operator district of this display screen, and receives for the correction data of described calibration point detecting and set up the related of this absolute position and this screen operator district for this correlation logic assembly according to this correction data.

Preferable, this optical transmitting set produces a collimated light line, and this optical receiver is detected the reflected light that this collimated ray is reflected by this object.

Preferable, this optical receiver is a linear detector.

The beneficial effect of optical profile type screen input equipment of the present utility model is: utilize two optical alignment modules being located on the carrier and several assemblies of control module, can reduce cost, reduce whole volume, and have highly sensitive advantage.

Description of drawings

Fig. 1 is a system block diagrams, and first preferred embodiment of the utility model optical profile type screen input equipment is described;

Fig. 2 is a system block diagrams, and second preferred embodiment of the utility model optical profile type screen input equipment is described;

Fig. 3 is a synoptic diagram, illustrates that the preferred embodiment of the utility model optical profile type keyboard input devices installs the mode of display screen on carrier.

Embodiment

Below in conjunction with drawings and Examples the utility model is elaborated.

Consult Fig. 1, in first preferred embodiment of the present utility model, optical profile type screen input equipment 100 comprises a carrier 4, two optical alignment modules 1,1 ' and one control module 2, and is fixed with a display screen 3 that defines a screen operator district 31 on the carrier 4.

In the present embodiment, carrier 4 is the fixedly carrier or the housings of display screen 3; Two optical alignment modules 1,1 ' for example adopt, and China believes the product that photoelectricity scientific ﹠ technical corporation is produced, two relative angles that are individually fixed in this carrier 4 fall, and each optical alignment module 1,1 ' comprises the catoptrical optical receiver 12,12 ' that optical transmitting set 11, this optical transmitting set 11 of 11 ' and one detecting, a 11 ' light that produces that produces light is reflected by an object 6 (as: finger); In the present embodiment, optical transmitting set 11,11 ' produces a collimated light line (as: laser), optical receiver 12,12 ' is detected this optical transmitting set 11, the 11 ' collimated ray that produces by the reflected light of these object 6 reflections, and optical receiver 12,12 ' is a linear detector (linear sensor), because optical alignment module 1,1 ' cost is low and obtain easily, the therefore advantage that has low cost and produce easily.

Control module 2 electrically connects display screen 3 and optical alignment module 1,1 ', has location logic module 20, a correlation logic assembly 22 and a vernier logic module 23.

Location logic module 20 obtains each optical alignment module 1,1 ' detecting data also utilizes object 6 and two optical alignment modules 1, angle between 1 ' and orient the absolute position of object 6 in screen operator district 31, the table of comparisons that correlation logic assembly 22 is set up according to absolute position and screen operator district 31 is converted to the absolute position one screen position of object 6, vernier logic module 23 is converted to a vernier 7 that manifests in the screen operator district 31 of display screen 3 with the screen position of object 6, therefore, along with object 6 moves at screen operator district 31 diverse locations, just can record the position of object 6 and demonstrate vernier 7 in the screen position of correspondence according to the control principle of aforementioned components.

Consult Fig. 2, in second preferred embodiment of the present utility model, optical profile type screen input equipment 100 ' also comprises as the aforementioned carrier 4, two optical alignment modules 1,1 ' and control module 2, and is fixed with the display screen 3 that defines screen operator district 31 on the carrier 4; Two relative angles that two optical alignment modules 1,1 ' are individually fixed in this carrier 4 fall, and each optical alignment module 1,1 ' comprises the catoptrical optical receiver 12,12 ' that optical transmitting set 11, this optical transmitting set 11 of 11 ' and one detecting, a 11 ' light that produces that produces light is reflected by an object 6 (as: finger).

Different is that in the present embodiment, control module 2 also comprises a calibration logic assembly 21 except location logic module 20, correlation logic assembly 22 and vernier logic module 23.

Calibration logic assembly 21 is to show several calibration points 81 to 83 in the screen operator district 31 of display screen 3, and the correction data that receives for described calibration point 81 to 83 detectings supplies correlation logic assembly 22 to set up the table of comparisons in absolute position and screen operator district 31 according to correction data, after overcorrect, just can carry out associative operation as Fig. 1, comprise that location logic module 20 obtains each optical alignment module 1,1 ' detecting data also utilizes object 6 and two optical alignment modules 1, angle between 1 ' and orient the absolute position of object 6 in screen operator district 31, the table of comparisons that correlation logic assembly 22 is set up according to absolute position and screen operator district 31 is converted to the absolute position one screen position of object 6, vernier logic module 23 is converted to the vernier 7 that manifests in the screen operator district 31 of display screen 3 with the screen position of object 6, therefore, along with object 6 moves at screen operator district 31 diverse locations, just can record the position of object 6 and demonstrate vernier 7 in the screen position of correspondence according to the control principle of aforementioned components.

Consult Fig. 3, carrier 4 has that a capping 41, a bottom surface 42, connect side 43 between capping 41 and the bottom surface 42, several are positioned at bottom surface 42 and are used for fixing the fastener 44 that the fixed part 411,412, of display screen 3 fastens capping 41 and bottom surface 42 each other, and one is positioned at bottom surface 42 and for installing described optical alignment module 1,1 ' and the holding part 45 of control module 2; In this preferred embodiment, fixed part 411,412 and holding part 45 can be the elasticity glued membranes, but other fixation kits that can locate unlikely displacement also are suitable for, not with the elasticity glued membrane system of exceeding.

In sum, the utility model optical profile type screen input equipment 100,100 ' effect are, utilize carrier 4, be located at two optical alignment modules 1 on the carrier 4,1 ' and several assemblies of control module 2, can reduce cost, reduce whole volume, and have highly sensitive advantage, can reach the purpose of this utility model really.

Claims

1. optical profile type screen input equipment, collocation one defines the display screen in a screen operator district, and it is characterized in that: this optical profile type screen input equipment comprises:

One carrier is for fixing this display screen;

Two optical alignment modules are individually fixed in the corner of this carrier, and respectively this optical alignment module comprises that one produces the optical transmitting set of light and light that this optical transmitting set of detecting produces by the catoptrical optical receiver of object reflection; And

One control module electrically connects this display screen and this optical alignment module, and has:

One location logic module, obtain the detecting data of this optical alignment module respectively and utilize this object and two optical alignment modules between angle and orient the absolute position of this object in the screen operator district,

One correlation logic assembly, the table of comparisons of setting up according to this absolute position and this screen operator district is converted to a screen position with this absolute position, and

One vernier logic module is converted to this screen position a vernier that manifests in the screen operator district of this display screen.

2. optical profile type screen input equipment as claimed in claim 1, it is characterized in that: this carrier has that a capping, a bottom surface, one connect side between capping and the bottom surface, several are positioned at this bottom surface and are used for fixing the fastener that the fixed part, of this display screen fastens this capping and this bottom surface each other, and one is positioned at this bottom surface and for the holding part of the described optical alignment module of installing and this control module.

3. optical profile type screen input equipment as claimed in claim 1 or 2 is characterized in that: this control module also comprises:

One calibration logic assembly shows several calibration points in the screen operator district of this display screen, and receives for the correction data of described calibration point detecting and set up the related of this absolute position and this screen operator district for this correlation logic assembly according to this correction data.

4. optical profile type screen input equipment as claimed in claim 3 is characterized in that: this optical transmitting set produces a collimated light line, and this optical receiver is detected the reflected light that this collimated ray is reflected by this object.

5. optical profile type screen input equipment as claimed in claim 4 is characterized in that: this optical receiver is a linear detector.