CN102419665A

CN102419665A - Scanning method and system for touch screen

Info

Publication number: CN102419665A
Application number: CN2011102218318A
Authority: CN
Inventors: 程海新; 刘新斌; 刘建军; 叶新林
Original assignee: Beijing Irtouch Systems Co Ltd; Beijing Unitop New Technology Co Ltd
Current assignee: Beijing Irtouch Systems Co Ltd
Priority date: 2011-08-03
Filing date: 2011-08-03
Publication date: 2012-04-18
Anticipated expiration: 2031-08-03
Also published as: CN102419665B

Abstract

The invention provides a scanning method and system for a touch screen, relates to the field of the touch screen and aims to provide the scanning method and the scanning system which can realize wide-angle scanning and improve the scanning density so as to effectively reduce an image ghost region and improve the analyzing precision of a touch point. The scanning system for the touch screen comprises a first emission lamp array, a first receiving lamp array, a second emission lamp array, a second receiving lamp array, a scanning control device and a touch point analyzing device, wherein the scanning control device is respectively connected with the first emission lamp array, the first receiving lamp array, the second emission lamp array and the second receiving lamp array and is used for controlling a scanning way to connect the touch point analyzing device 60 with the scanning control device 50 in a middle lamp scanning process and an inclined lamp scanning process; and the position of the touch point is analyzed according to scanning data provided by the scanning control device 50. According to the scanning method and system of the touch system provided by the invention, the size of the ghost image region is effectively reduced and the analyzing precision of the touch point is improved; and the scanning method and system of the touch system can be applied to various infrared touch screens.

Description

A kind of scan method and scanning system that is used for touch-screen

Technical field

The present invention relates to touch-screen, specifically, relate to the scanning technique of touch-screen.

Background technology

In recent years, infrared touch panel has obtained application more and more widely.Infrared touch panel adopts transmitting lamp emission infrared light usually; Receive through the infrared light of reception lamp the transmitting lamp emission; Transmitting lamp with receive lamp be arranged in touch-screen around; When other object touches on the touch-screen,, analyze touch point position according to emission and the abnormal conditions that receive infrared light.

The emission of current employing and the mode that receives infrared light, it is corresponding one by one with the reception lamp to be generally transmitting lamp, and arranged in co-axial alignment, and promptly the main shaft of transmitting lamp and reception lamp is on same straight line, and this straight line is perpendicular to the edge of touch-screen.The general mode that adopts is a transmitting lamp emission infrared light, is received by a reception lamp coaxial with it, and the shortcoming of this scan mode is that the ghost point zone that touches in the surveyed area is big, and with the bad differentiation of true touch point, the analysis of touch point is difficult.The existing technology that also has is improved this scan mode; When transmitting lamp emission infrared light, by near reception lamp coaxial and the reception lamp coaxial with it with it from axle, i.e. the not reception of the reception lamp on same straight line of the main shaft of main shaft and transmitting lamp; This scan mode can reduce ghost point zone to a certain extent; But effect is still undesirable, and gained ghost point zone is still bigger, and the position analysis of true touch point is still relatively more difficult.Shown in Figure 1 to be existing be the scanning design sketch of master's technology with coaxial scanning, visible by figure, and gained ghost point zone is distinguished with true point is difficult.

If adopt the transmitting lamp of wide-angle and receive lamp; Also can dwindle ghost point zone to a certain extent; But this wide-angle transmitting lamp is higher with the cost that receives lamp, on the other hand on the one hand; Adopt the transmitting lamp of wide-angle and receive the ghost point zone of lamp gained still bigger, be difficult to meet the requirement of the analysis of high precision touch point.

Summary of the invention

One of the object of the invention is to provide a kind of can realize wide-angle scanning, improve scanning density, thereby effectively reduces ghost point zone, improves the scan method of touch point analysis precision.

A kind of scan method that is used for touch-screen; Said touch-screen comprises first edge, second edge, the 3rd edge and the 4th edge, and said four edges surround the touch surveyed area of touch-screen, wherein; First edge parallel with second edge over against; The 3rd edge parallel with the 4th edge over against, first edge respectively with the 3rd edge and the 4th edge quadrature, second edge respectively with the 3rd edge and the 4th edge quadrature; In said first edge placement first transmitting lamp array is arranged; This first transmitting lamp array comprises evenly distributed successively s transmitting lamp group; Wherein s is the integer greater than 1; Wherein each transmitting lamp group comprises three transmitting lamp; The major axes orientation of middle transmitting lamp is perpendicular to said first edge and point to said second edge, and the major axes orientation of the transmitting lamp of said middle transmitting lamp both sides becomes the angle of 0 to 90 degree respectively and is called left-leaning transmitting lamp and Right deviation transmitting lamp respectively with middle transmitting lamp major axes orientation, and a side at left-leaning transmitting lamp and Right deviation transmitting lamp place is called the left side and the right side of transmitting lamp group respectively; The transmitting lamp of the said first transmitting lamp array add up to m, then m=3s; Have first to receive the lamp array in said second edge placement; This first reception lamp array comprises that evenly distributed successively s receives the lamp group; Wherein each reception lamp group comprises that three receive lamps; The major axes orientation of middle reception lamp is perpendicular to said second edge and point to said first edge; The major axes orientation that receives the reception lamp of lamp both sides in the middle of said becomes the angle of 0 to 90 degree with centre reception lamp major axes orientation respectively and is called left-leaning lamp and the Right deviation reception lamp of receiving respectively; A left-leaning side that receives lamp and Right deviation reception lamp place is called left side and the right side that receives the lamp group respectively; Said first receive the lamp array the reception lamp add up to m, it is corresponding one by one that the s of the said first transmitting lamp array transmitting lamp group and said first receives s reception lamp group of lamp array, the main shaft of the middle reception lamp of the middle transmitting lamp of each transmitting lamp group and the reception lamp group corresponding with it in a straight line; In said the 3rd edge placement the second transmitting lamp array is arranged; This second transmitting lamp array comprises evenly distributed successively k transmitting lamp group; Wherein k is the integer greater than 1; Wherein each transmitting lamp group comprises three transmitting lamp; The major axes orientation of middle transmitting lamp is perpendicular to said the 3rd edge and point to said the 4th edge, and the major axes orientation of the transmitting lamp of said middle transmitting lamp both sides becomes the angle of 0 to 90 degree respectively and is called left-leaning transmitting lamp and Right deviation transmitting lamp respectively with middle transmitting lamp major axes orientation, and a side at left-leaning transmitting lamp and Right deviation transmitting lamp place is called the left side and the right side of transmitting lamp group respectively; The transmitting lamp of the said second transmitting lamp array add up to n, then n=3k; Have second to receive the lamp array in said the 4th edge placement; This second reception lamp array comprises that evenly distributed successively k receives the lamp group; Wherein each reception lamp group comprises that three receive lamps; The major axes orientation of middle reception lamp is perpendicular to said the 4th edge and point to said the 3rd edge; The major axes orientation that receives the reception lamp of lamp both sides in the middle of said becomes the angle of 0 to 90 degree with centre reception lamp major axes orientation respectively and is called left-leaning lamp and the Right deviation reception lamp of receiving respectively; A left-leaning side that receives lamp and Right deviation reception lamp place is called left side and the right side that receives the lamp group respectively; Said second receive the lamp array the reception lamp add up to n, it is corresponding one by one that the k of the said second transmitting lamp array transmitting lamp group and said second receives k reception lamp group of lamp array, the main shaft of the middle reception lamp of the middle transmitting lamp of each transmitting lamp group and the reception lamp group corresponding with it in a straight line; This method comprises:

The intermediate lamp scanning process; This intermediate lamp scanning process comprises: make the middle transmitting lamp emission infrared light of each transmitting lamp group of being arranged in said first edge successively, the infrared light of transmitting lamp emission is by each h of the both sides of the corresponding corresponding reception lamp group that is arranged in said second edge of the transmitting lamp group of transmitting lamp in the middle of each and this corresponding reception lamp group in the middle of each1Receive lamp in the middle of each of individual reception lamp group and receive simultaneously, wherein 1<=h1<=15, as the not enough h of reception lamp group of corresponding corresponding reception lamp group one side that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp1The time, then by the h of the opposite side of the corresponding corresponding reception lamp group that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp and this corresponding reception lamp group1Receive the not enough h of a lamp and a said side in the middle of each of individual reception lamp group1Receiving lamp in the middle of each of individual reception lamp group receives simultaneously; Make the middle transmitting lamp emission infrared light of each transmitting lamp group of being arranged in said the 3rd edge successively, the infrared light of transmitting lamp emission is by each h of the both sides of the corresponding corresponding reception lamp group that is arranged in said the 4th edge of the transmitting lamp group of transmitting lamp in the middle of each and this corresponding reception lamp group in the middle of each2Receive lamp in the middle of each of individual reception lamp group and receive simultaneously, wherein 1<=h2<=15, as the not enough h of reception lamp group of corresponding corresponding reception lamp group one side that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp2The time, then by the h of the opposite side of the corresponding corresponding reception lamp group that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp and this corresponding reception lamp group2Receive the not enough h of a lamp and a said side in the middle of each of individual reception lamp group2Receiving lamp in the middle of each of individual reception lamp group receives simultaneously;

Inclination lamp scanning process; This inclination lamp scanning process comprises: make the "Left"-deviationist except that middle transmitting lamp and/or the Right deviation transmitting lamp emission infrared light of each the transmitting lamp group that is arranged in said first edge, by the reception lamp reception of the selected reception lamp group that is arranged in said second edge; Make the "Left"-deviationist except that middle transmitting lamp and/or the Right deviation transmitting lamp emission infrared light of each the transmitting lamp group that is arranged in said the 3rd edge, by the reception lamp reception of the selected reception lamp group that is arranged in said the 4th edge.

Preferably, the inclination lamp scanning process of above-mentioned method comprises: the direction that increases progressively along the number that is arranged in each emission lamp group at described the first edge, and since Right deviation emission lamp to the s-g of the 1st emission lamp group₁The Right deviation emission lamp of individual emission lamp group, wherein 1≤g₁≤ 15, make successively each Right deviation emission lamp emission infrared light of each emission lamp group, the infrared light of the Right deviation emission lamp emission of each emission lamp group by be arranged in described the second edge, the corresponding receiving light group of each emission lamp group left side is every e₁The e of individual receiving light group₁+ 1 receiving light group to the e₁+1+f ₁The common f of individual receiving light group₁Each Right deviation receiving light of individual receiving light group receives, wherein 1≤e₁≤15，2≤f ₁≤ 20, when the corresponding receiving light group of each emission lamp group left side every e₁The e of individual receiving light group₁+ 1 not enough f in left side that the receiving light group rises₁The time, by this deficiency f₁Each Right deviation receiving light of individual receiving light group receives; The direction of successively decreasing along the number that is arranged in each emission lamp group at described the first edge, since left-leaning emission lamp to the 1+g of s emission lamp group₁The left-leaning emission lamp of individual emission lamp group, make the left-leaning emission lamp emission of each of each emission lamp group infrared light successively, the infrared light of the left-leaning emission lamp emission of each emission lamp group by be arranged in described the second edge, the corresponding receiving light group of each emission lamp group right side is every e₁The e of individual receiving light group₁+ 1 receiving light group to the e₁+1+f ₁The common f of individual receiving light group₁The left-leaning receiving light of each of individual receiving light group receives, when the corresponding receiving light group of each emission lamp group right side every e₁The e of individual receiving light group₁+ 1 not enough f in right side that the receiving light group rises₁The time, by this deficiency f₁The left-leaning receiving light of each of individual receiving light group receives; The direction that increases progressively along the number that is arranged in each emission lamp group at described the first edge, since Right deviation emission lamp to the s-t of the 1st emission lamp group₁The Right deviation emission lamp of individual emission lamp group, wherein 1≤t₁≤ 15, make successively each Right deviation emission lamp emission infrared light of each emission lamp group, the infrared light of the Right deviation emission lamp emission of each emission lamp group by be arranged in described the second edge, the corresponding receiving light group of each emission lamp group left side u altogether₁In the middle of each of individual receiving light group, receiving light receives, wherein 1≤u₁≤ 15, the not enough u of the number of the receiving light group on the left of the corresponding receiving light group of emission lamp group₁The time, by this deficiency u₁In the middle of each of individual receiving light group, receiving light receives; The direction of successively decreasing along the number that is arranged in each emission lamp group at described the first edge, since left-leaning emission lamp to the 1+t of s emission lamp group₁The left-leaning emission lamp of individual emission lamp group, make the left-leaning emission lamp emission of each of each emission lamp group infrared light successively, the infrared light of the left-leaning emission lamp emission of each emission lamp group by be arranged in described the second edge, the corresponding receiving light group of each emission lamp group right side u altogether₁In the middle of each of individual receiving light group, receiving light receives, as the not enough u of number of the receiving light group on the corresponding receiving light group of emission lamp group right side₁The time, by this deficiency u₁In the middle of each of individual receiving light group, receiving light receives; The direction that increases progressively along the number that is arranged in each emission lamp group at described the first edge, since left-leaning emission lamp to the v of the 1st emission lamp group₁The left-leaning emission lamp of individual emission lamp group, wherein 1≤v₁≤ 15, make successively the left-leaning emission lamp emission of each of each emission lamp group infrared light, the infrared light of the left-leaning emission lamp emission of each emission lamp group by be arranged in described the second edge, the 1st corresponding receiving light group of emission lamp group and the 1st the corresponding receiving light group of emission lamp group left side w altogether₁Each Right deviation receiving light of individual receiving light group receives, wherein 1≤w₁≤ 30; The direction of successively decreasing along the number that is arranged in each emission lamp group at described the first edge, since Right deviation emission lamp to the s-v of s emission lamp group₁The Right deviation emission lamp of+1 emission lamp group, make successively each Right deviation emission lamp emission infrared light of each emission lamp group, the infrared light of the Right deviation emission lamp emission of each emission lamp group by be arranged in described the second edge, the corresponding receiving light group of a s emission lamp group and s the common w in the corresponding receiving light group of emission lamp group right side₁The left-leaning receiving light of each of individual receiving light group receives; The direction that increases progressively along the number that is arranged in each emission lamp group at described the 3rd edge, since Right deviation emission lamp to the k-g of the 1st emission lamp group₂The Right deviation emission lamp of individual emission lamp group, wherein 1≤g₂≤ 15, make successively each Right deviation emission lamp emission infrared light of each emission lamp group, the infrared light of the Right deviation emission lamp emission of each emission lamp group by be arranged in described the 4th edge, the corresponding receiving light group of each emission lamp group left side is every e₂The e of individual receiving light group₂+ 1 receiving light group to the e₂+1+f ₂The common f of individual receiving light group₂Each Right deviation receiving light of individual receiving light group receives, wherein 1≤e₂≤15，2≤f ₂≤ 20, when the corresponding receiving light group of each emission lamp group left side every e₂The e of individual receiving light group₂+ 1 not enough f in left side that the receiving light group rises₂The time, by this deficiency f₂Each Right deviation receiving light of individual receiving light group receives; The direction of successively decreasing along the number that is arranged in each emission lamp group at described the 3rd edge, since left-leaning emission lamp to the 1+g of k emission lamp group₂The left-leaning emission lamp of individual emission lamp group, make the left-leaning emission lamp emission of each of each emission lamp group infrared light successively, the infrared light of the left-leaning emission lamp emission of each emission lamp group by be arranged in described the 4th edge, the corresponding receiving light group of each emission lamp group right side is every e₂The e of individual receiving light group₂+ 1 receiving light group to the e₂+1+f ₂The common f of individual receiving light group₂The left-leaning receiving light of each of individual receiving light group receives, when the corresponding receiving light group of each emission lamp group right side every e₂The e of individual receiving light group₂+ 1 not enough f in right side that the receiving light group rises₂The time, by this deficiency f₂The left-leaning receiving light of each of individual receiving light group receives; The direction that increases progressively along the number that is arranged in each emission lamp group at described the 3rd edge, since Right deviation emission lamp to the k-t of the 1st emission lamp group₂The Right deviation emission lamp of individual emission lamp group, wherein 1≤t₂≤ 15, make successively each Right deviation emission lamp emission infrared light of each emission lamp group, the infrared light of the Right deviation emission lamp of each emission lamp group emission by be arranged in described the 4th edge, the corresponding receiving light group of each emission lamp group left side receiving light reception, wherein 1≤u in the middle of each of u2 receiving light group altogether₂≤ 15, the not enough u of the number of the receiving light group on the left of the corresponding receiving light group of emission lamp group₂The time, by this deficiency u₂In the middle of each of individual receiving light group, receiving light receives; The direction of successively decreasing along the number that is arranged in each emission lamp group at described the 3rd edge, since left-leaning emission lamp to the 1+t of k emission lamp group₂The left-leaning emission lamp of individual emission lamp group, make the left-leaning emission lamp emission of each of each emission lamp group infrared light successively, the infrared light of the left-leaning emission lamp emission of each emission lamp group by be arranged in described the 4th edge, the corresponding receiving light group of each emission lamp group right side u altogether₂In the middle of each of individual receiving light group, receiving light receives, as the not enough u of number of the receiving light group on the corresponding receiving light group of emission lamp group right side₂The time, by this deficiency u₂In the middle of each of individual receiving light group, receiving light receives; The direction that increases progressively along the number that is arranged in each emission lamp group at described the 3rd edge, since left-leaning emission lamp to the v of the 1st emission lamp group₂The left-leaning emission lamp of individual emission lamp group, wherein 1≤v₂≤ 15, make successively the left-leaning emission lamp emission of each of each emission lamp group infrared light, the infrared light of the left-leaning emission lamp emission of each emission lamp group by be arranged in described the 4th edge, the 1st corresponding receiving light group of emission lamp group and the 1st the corresponding receiving light group of emission lamp group left side w altogether₂Each Right deviation receiving light of individual receiving light group receives, wherein 1≤w₂≤ 30; The direction of successively decreasing along the number that is arranged in each emission lamp group at described the 3rd edge, since Right deviation emission lamp to the k-v of k emission lamp group₂The Right deviation emission lamp of+1 emission lamp group, make successively each Right deviation emission lamp emission infrared light of each emission lamp group, the infrared light of the Right deviation emission lamp emission of each emission lamp group by be arranged in described the 4th edge, the corresponding receiving light group of a k emission lamp group and k the common w in the corresponding receiving light group of emission lamp group right side₂The left-leaning receiving light of each of individual receiving light group receives.

Two of the object of the invention is to provide a kind of can realize wide-angle scanning, improve scanning density, thereby effectively reduces ghost point zone, improves the scanning system of touch point analysis precision.

A kind of scanning system that is used for touch-screen; Said touch-screen comprises first edge, second edge, the 3rd edge and the 4th edge, and said four edges surround the touch surveyed area of touch-screen, wherein; First edge parallel with second edge over against; The 3rd edge parallel with the 4th edge over against, first edge respectively with the 3rd edge and the 4th edge quadrature, second edge respectively with the 3rd edge and the 4th edge quadrature; This system comprises: at the first transmitting lamp array of said first edge placement; This first transmitting lamp array comprises evenly distributed successively s transmitting lamp group; Wherein s is the integer greater than 1; Wherein each transmitting lamp group comprises three transmitting lamp; The major axes orientation of middle transmitting lamp is perpendicular to said first edge and point to said second edge, and the major axes orientation of the transmitting lamp of said middle transmitting lamp both sides becomes the angle of 0 to 90 degree respectively and is called left-leaning transmitting lamp and Right deviation transmitting lamp respectively with middle transmitting lamp major axes orientation, and a side at left-leaning transmitting lamp and Right deviation transmitting lamp place is called the left side and the right side of transmitting lamp group respectively; The transmitting lamp of the said first transmitting lamp array add up to m, m=3s; Receive the lamp array in first of said second edge placement; This first reception lamp array comprises that evenly distributed successively s receives the lamp group; Wherein each reception lamp group comprises that three receive lamps; The major axes orientation of middle reception lamp is perpendicular to said second edge and point to said first edge; The major axes orientation that receives the reception lamp of lamp both sides in the middle of said becomes the angle of 0 to 90 degree with centre reception lamp major axes orientation respectively and is called left-leaning lamp and the Right deviation reception lamp of receiving respectively; A left-leaning side that receives lamp and Right deviation reception lamp place is called left side and the right side that receives the lamp group respectively; Said first receive the lamp array the reception lamp add up to m, it is corresponding one by one that the s of the said first transmitting lamp array transmitting lamp group and said first receives s reception lamp group of lamp array, the main shaft of the middle reception lamp of the middle transmitting lamp of each transmitting lamp group and the reception lamp group corresponding with it in a straight line; The second transmitting lamp array in said the 3rd edge placement; This second transmitting lamp array comprises evenly distributed successively k transmitting lamp group; Wherein k is the integer greater than 1; Wherein each transmitting lamp group comprises three transmitting lamp; The major axes orientation of middle transmitting lamp is perpendicular to said the 3rd edge and point to said the 4th edge, and the major axes orientation of the transmitting lamp of said middle transmitting lamp both sides becomes the angle of 0 to 90 degree respectively and is called left-leaning transmitting lamp and Right deviation transmitting lamp respectively with middle transmitting lamp major axes orientation, and a side at left-leaning transmitting lamp and Right deviation transmitting lamp place is called the left side and the right side of transmitting lamp group respectively; The transmitting lamp of the said second transmitting lamp array add up to n, n=3k; Receive the lamp array in second of said the 4th edge placement; This second reception lamp array comprises that evenly distributed successively k receives the lamp group; Wherein each reception lamp group comprises that three receive lamps; The major axes orientation of middle reception lamp is perpendicular to said the 4th edge and point to said the 3rd edge; The major axes orientation that receives the reception lamp of lamp both sides in the middle of said becomes the angle of 0 to 90 degree with centre reception lamp major axes orientation respectively and is called left-leaning lamp and the Right deviation reception lamp of receiving respectively; A left-leaning side that receives lamp and Right deviation reception lamp place is called left side and the right side that receives the lamp group respectively; Said second receive the lamp array the reception lamp add up to n, it is corresponding one by one that the k of the said second transmitting lamp array transmitting lamp group and said second receives k reception lamp group of lamp array, the main shaft of the middle reception lamp of the middle transmitting lamp of each transmitting lamp group and the reception lamp group corresponding with it in a straight line; Scan controller, this scan controller receives the lamp array with the said first transmitting lamp array, first, the second transmitting lamp array, second receives the lamp array and is connected respectively, is used for the gated sweep mode; The touch point analytical equipment, this touch point analytical equipment is connected with said scan controller, analyzes touch point position according to the scan-data that scan controller provides; Wherein, Scan controller carries out intermediate lamp scanning process and inclination lamp scanning process; Said intermediate lamp scanning process comprises: make the middle transmitting lamp emission infrared light of each transmitting lamp group of being arranged in said first edge successively, the infrared light of transmitting lamp emission is by each h of the both sides of the corresponding corresponding reception lamp group that is arranged in said second edge of the transmitting lamp group of transmitting lamp in the middle of each and this corresponding reception lamp group in the middle of each1Receive lamp in the middle of each of individual reception lamp group and receive simultaneously, wherein 1<=h1<=15, as the not enough h of reception lamp group of corresponding corresponding reception lamp group one side that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp1The time, then by the h of the opposite side of the corresponding corresponding reception lamp group that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp and this corresponding reception lamp group1Receive the not enough h of a lamp and a said side in the middle of each of individual reception lamp group1Receiving lamp in the middle of each of individual reception lamp group receives simultaneously; Make the middle transmitting lamp emission infrared light of each transmitting lamp group of being arranged in said the 3rd edge successively, the infrared light of transmitting lamp emission is by each h of the both sides of the corresponding corresponding reception lamp group that is arranged in said the 4th edge of the transmitting lamp group of transmitting lamp in the middle of each and this corresponding reception lamp group in the middle of each2Receive lamp in the middle of each of individual reception lamp group and receive simultaneously, wherein 1<=h2<=15, as the not enough h of reception lamp group of corresponding corresponding reception lamp group one side that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp2The time, then by the h of the opposite side of the corresponding corresponding reception lamp group that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp and this corresponding reception lamp group2Receive the not enough h of a lamp and a said side in the middle of each of individual reception lamp group2Receiving lamp in the middle of each of individual reception lamp group receives simultaneously; Said inclination lamp scanning process comprises: make the "Left"-deviationist except that middle transmitting lamp and/or the Right deviation transmitting lamp emission infrared light of each the transmitting lamp group that is arranged in said first edge, by the reception lamp reception of the selected reception lamp group that is arranged in said second edge; Make the "Left"-deviationist except that middle transmitting lamp and/or the Right deviation transmitting lamp emission infrared light of each the transmitting lamp group that is arranged in said the 3rd edge, by the reception lamp reception of the selected reception lamp group that is arranged in said the 4th edge.

Preferably, the inclination lamp scanning process that the scanning control device of above-mentioned scanning system carries out comprises: the direction that increases progressively along the number that is arranged in each emission lamp group at described the first edge, and since Right deviation emission lamp to the s-g of the 1st emission lamp group₁The Right deviation emission lamp of individual emission lamp group, wherein 1≤g₁≤ 15, make successively each Right deviation emission lamp emission infrared light of each emission lamp group, the infrared light of the Right deviation emission lamp emission of each emission lamp group by be arranged in described the second edge, the corresponding receiving light group of each emission lamp group left side is every e₁The e of individual receiving light group₁+ 1 receiving light group to the e₁+1+f ₁The common f of individual receiving light group₁Each Right deviation receiving light of individual receiving light group receives, wherein 1≤e₁≤15，2≤f ₁≤ 20, when the corresponding receiving light group of each emission lamp group left side every e₁The e of individual receiving light group₁+ 1 not enough f in left side that the receiving light group rises₁The time, by this deficiency f₁Each Right deviation receiving light of individual receiving light group receives; The direction of successively decreasing along the number that is arranged in each emission lamp group at described the first edge, since left-leaning emission lamp to the 1+g of s emission lamp group₁The left-leaning emission lamp of individual emission lamp group, make the left-leaning emission lamp emission of each of each emission lamp group infrared light successively, the infrared light of the left-leaning emission lamp emission of each emission lamp group by be arranged in described the second edge, the corresponding receiving light group of each emission lamp group right side is every e₁The e of individual receiving light group₁+ 1 receiving light group to the e₁+1+f ₁The common f of individual receiving light group₁The left-leaning receiving light of each of individual receiving light group receives, when the corresponding receiving light group of each emission lamp group right side every e₁The e of individual receiving light group₁+ 1 not enough f in right side that the receiving light group rises₁The time, by this deficiency f₁The left-leaning receiving light of each of individual receiving light group receives; The direction that increases progressively along the number that is arranged in each emission lamp group at described the first edge, since Right deviation emission lamp to the s-t of the 1st emission lamp group₁The Right deviation emission lamp of individual emission lamp group, wherein 1≤t₁≤ 15, make successively each Right deviation emission lamp emission infrared light of each emission lamp group, the infrared light of the Right deviation emission lamp emission of each emission lamp group by be arranged in described the second edge, the corresponding receiving light group of each emission lamp group left side u altogether₁In the middle of each of individual receiving light group, receiving light receives, wherein 1≤u₁≤ 15, the not enough u of the number of the receiving light group on the left of the corresponding receiving light group of emission lamp group₁The time, by this deficiency u₁In the middle of each of individual receiving light group, receiving light receives; The direction of successively decreasing along the number that is arranged in each emission lamp group at described the first edge, since left-leaning emission lamp to the 1+t of s emission lamp group₁The left-leaning emission lamp of individual emission lamp group, make the left-leaning emission lamp emission of each of each emission lamp group infrared light successively, the infrared light of the left-leaning emission lamp emission of each emission lamp group by be arranged in described the second edge, the corresponding receiving light group of each emission lamp group right side u altogether₁In the middle of each of individual receiving light group, receiving light receives, as the not enough u of number of the receiving light group on the corresponding receiving light group of emission lamp group right side₁The time, by this deficiency u₁In the middle of each of individual receiving light group, receiving light receives; The direction that increases progressively along the number that is arranged in each emission lamp group at described the first edge, since left-leaning emission lamp to the v of the 1st emission lamp group₁The left-leaning emission lamp of individual emission lamp group, wherein 1≤v₁≤ 15, make successively the left-leaning emission lamp emission of each of each emission lamp group infrared light, the infrared light of the left-leaning emission lamp emission of each emission lamp group by be arranged in described the second edge, the 1st corresponding receiving light group of emission lamp group and the 1st the corresponding receiving light group of emission lamp group left side w altogether₁Each Right deviation receiving light of individual receiving light group receives, wherein 1≤w₁≤ 30; The direction of successively decreasing along the number that is arranged in each emission lamp group at described the first edge, since Right deviation emission lamp to the s-v of s emission lamp group₁The Right deviation emission lamp of+1 emission lamp group, make successively each Right deviation emission lamp emission infrared light of each emission lamp group, the infrared light of the Right deviation emission lamp emission of each emission lamp group by be arranged in described the second edge, the corresponding receiving light group of a s emission lamp group and s the common w in the corresponding receiving light group of emission lamp group right side₁The left-leaning receiving light of each of individual receiving light group receives; The direction that increases progressively along the number that is arranged in each emission lamp group at described the 3rd edge, since Right deviation emission lamp to the k-g of the 1st emission lamp group₂The Right deviation emission lamp of+1 emission lamp group, wherein 1≤g₂≤ 15, make successively each Right deviation emission lamp emission infrared light of each emission lamp group, the infrared light of the Right deviation emission lamp emission of each emission lamp group by be arranged in described the 4th edge, the corresponding receiving light group of each emission lamp group left side is every e₂The e of individual receiving light group₂+ 1 receiving light group to the e₂+1+f ₂The common f of individual receiving light group₂Each Right deviation receiving light of individual receiving light group receives, wherein 1≤e₂≤15，2 ≤f ₂≤ 20, when the corresponding receiving light group of each emission lamp group left side every e₂The e of individual receiving light group₂+ 1 not enough f in left side that the receiving light group rises₂The time, by this deficiency f₂Each Right deviation receiving light of individual receiving light group receives; The direction of successively decreasing along the number that is arranged in each emission lamp group at described the 3rd edge, since left-leaning emission lamp to the 1+g of k emission lamp group₂The left-leaning emission lamp of individual emission lamp group, make the left-leaning emission lamp emission of each of each emission lamp group infrared light successively, the infrared light of the left-leaning emission lamp emission of each emission lamp group by be arranged in described the 4th edge, the corresponding receiving light group of each emission lamp group right side is every e₂The e of individual receiving light group₂+ 1 receiving light group to the e₂+1+f ₂The common f of individual receiving light group₂The left-leaning receiving light of each of individual receiving light group receives; The direction that increases progressively along the number that is arranged in each emission lamp group at described the 3rd edge, since Right deviation emission lamp to the k-t of the 1st emission lamp group₂The Right deviation emission lamp of individual emission lamp group, wherein 1≤t₂≤ 15, make successively each Right deviation emission lamp emission infrared light of each emission lamp group, the infrared light of the Right deviation emission lamp emission of each emission lamp group by be arranged in described the 4th edge, the corresponding receiving light group of each emission lamp group left side u altogether₂In the middle of each of individual receiving light group, receiving light receives, wherein 1≤u₂≤ 15, the not enough u of the number of the receiving light group on the left of the corresponding receiving light group of emission lamp group₂The time, by this deficiency u₂In the middle of each of individual receiving light group, receiving light receives; The direction of successively decreasing along the number that is arranged in each emission lamp group at described the 3rd edge, since left-leaning emission lamp to the 1+t of k emission lamp group₂The left-leaning emission lamp of individual emission lamp group, make the left-leaning emission lamp emission of each of each emission lamp group infrared light successively, the infrared light of the left-leaning emission lamp emission of each emission lamp group by be arranged in described the 4th edge, the corresponding receiving light group of each emission lamp group right side u altogether₂In the middle of each of individual receiving light group, receiving light receives, as the not enough u of number of the receiving light group on the corresponding receiving light group of emission lamp group right side₂The time, by this deficiency u₂In the middle of each of individual receiving light group, receiving light receives; The direction that increases progressively along the number that is arranged in each emission lamp group at described the 3rd edge, since left-leaning emission lamp to the v of the 1st emission lamp group₂The left-leaning emission lamp of individual emission lamp group, wherein 1≤v₂≤ 15, make successively the left-leaning emission lamp emission of each of each emission lamp group infrared light, the infrared light of the left-leaning emission lamp emission of each emission lamp group by be arranged in described the 4th edge, the 1st corresponding receiving light group of emission lamp group and the 1st the corresponding receiving light group of emission lamp group left side w altogether₂Each Right deviation receiving light of individual receiving light group receives, wherein 1≤w₂≤ 30; The direction of successively decreasing along the number that is arranged in each emission lamp group at described the 3rd edge, since Right deviation emission lamp to the k-v of k emission lamp group₂The Right deviation emission lamp of+1 emission lamp group, make successively each Right deviation emission lamp emission infrared light of each emission lamp group, the infrared light of the Right deviation emission lamp emission of each emission lamp group by be arranged in described the 4th edge, the corresponding receiving light group of a k emission lamp group and k the common w in the corresponding receiving light group of emission lamp group right side₂The left-leaning receiving light of each of individual receiving light group receives.

Preferably; The left-leaning transmitting lamp main shaft of above-mentioned each transmitting lamp group and the angle of intermediate lamp main shaft equate that with the angle of Right deviation transmitting lamp main shaft and intermediate lamp main shaft each receives the "Left"-deviationist reception lamp main shaft of lamp group and the angle of intermediate lamp main shaft equates with the angle that Right deviation receives lamp main shaft and intermediate lamp main shaft.

Preferably, the angle of the angle of the left-leaning transmitting lamp main shaft of above-mentioned each transmitting lamp group and intermediate lamp main shaft or Right deviation transmitting lamp main shaft and intermediate lamp main shaft equates with the angle that Right deviation receives lamp main shaft and intermediate lamp main shaft with the angle that the "Left"-deviationist of each reception lamp group receives lamp main shaft or intermediate lamp main shaft.

Scan method that is used for touch-screen of the present invention and scanning system are owing to adopt transmitting lamp and the major axes orientation and the edge-perpendicular of touch-screen and the non-perpendicular mixing mode that receive lamp; And not only to have carried out with coaxial scanning be the non-coaxial scanning process of master's the scanning process but also the lamp that tilts; Make that sweep trace can wide-angle tilt; And scanning line density increases, and has reduced terrible zone effectively, has improved the analysis precision of touch point greatly.

Description of drawings

Fig. 1 is the scanning design sketch of prior art;

Fig. 2 is the scanning design sketch that adopts the embodiment of scan method of the present invention and scanning system;

Fig. 3 is the view that the second transmitting lamp array and second of embodiments of the invention receives the lamp array;

Fig. 4 is the view that the first transmitting lamp array and first of embodiments of the invention receives the lamp array;

Fig. 5 is the intermediate lamp scanning process of embodiments of the invention;

Fig. 6 is the synoptic diagram of a scanning process in the inclination lamp scanning process of embodiments of the invention;

Fig. 7 is the synoptic diagram of another scanning process in the inclination lamp scanning process of embodiments of the invention;

Fig. 8 is the synoptic diagram of another scanning process in the inclination lamp scanning process of embodiments of the invention;

Fig. 9 is the synoptic diagram of another scanning process in the inclination lamp scanning process of embodiments of the invention;

Figure 10 is the synoptic diagram of a scanning process in the inclination lamp scanning process of embodiments of the invention;

Figure 11 is the synoptic diagram of another scanning process in the inclination lamp scanning process of embodiments of the invention;

Figure 12 is the arrangement of transmitting lamp of transmitting lamp group of the first transmitting lamp array of embodiments of the invention;

Figure 13 is the arrangement of the reception lamp of first of the embodiments of the invention reception lamp group that receives the lamp array;

Figure 14 is the arrangement of transmitting lamp of transmitting lamp group of the second transmitting lamp array of embodiments of the invention;

Figure 15 is the arrangement of the reception lamp of second of the embodiments of the invention reception lamp group that receives the lamp array;

Figure 16 is the structural drawing of the scanning system of embodiments of the invention.

Embodiment

To combine accompanying drawing of the present invention below, embodiments of the invention are described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on described embodiments of the invention, can make various changes or modification, these changes or modification are all within protection scope of the present invention.

Touch-screen is a rectangle; Have four edges: first edge, second edge, the 3rd edge and the 4th edge, four edges surround the touch surveyed area 100 of touch-screen, wherein; First edge parallel with second edge over against; The 3rd edge parallel with the 4th edge over against, first edge respectively with the 3rd edge and the 4th edge quadrature, second edge respectively with the 3rd edge and the 4th edge quadrature.

Fig. 4 is the view that the first transmitting lamp array and first of embodiments of the invention receives the lamp array.

As shown in Figure 4, in first edge placement first transmitting lamp array 10 is arranged.The first transmitting lamp array 10 comprises evenly distributed successively s transmitting lamp group 10 [1], 10 [2] ... 10 [a] ... 10 [s], 1<=a<=s wherein, and s is the integer greater than 1.Each transmitting lamp group comprises three transmitting lamp, comprises transmitting lamp 10 (i-1), 10 (i) and 10 (i+1) such as the 10th [a] transmitting lamp group.The direction of arrow is represented the major axes orientation of each transmitting lamp among the figure.The major axes orientation of middle transmitting lamp 10 (i) is perpendicular to first edge of touch-screen and point to second edge; The transmitting lamp 10 (i-1) of middle transmitting lamp 10 (i) both sides, the major axes orientation of 10 (i+1) become the angle of 0 to 90 degree respectively and are called left-leaning transmitting lamp and Right deviation transmitting lamp respectively with middle transmitting lamp 10 (i) major axes orientation, a side at left-leaning transmitting lamp and Right deviation transmitting lamp place is called the left side and the right side of transmitting lamp group respectively.The transmitting lamp of the first transmitting lamp array 10 add up to m, then m=3s.The the 10th [1], 10 [2] ... 10 [a] ... the corresponding transmitting lamp of 10 [s] transmitting lamp group is 10 (1), 10 (2), 10 (3), 10 (4), 10 (5), 10 (6) ... 10 (i-1), 10 (i), 10 (i+1) ... 10 (m-2), 10 (m-1), 10 (m).

Corresponding with the first transmitting lamp array 10, have first to receive lamp array 20 in second edge placement.First receives lamp array 20 comprises that evenly distributed successively s receives lamp group 20 [1], 20 [2] ... 20 [a] ... 20 [s].Each receives the lamp group and comprises that three receive lamp, receives the lamp group such as the 20th [a] and comprises reception lamp 20 (i-1), 20 (i) and 20 (i+1).The direction of arrow representes respectively to receive the major axes orientation of lamp among the figure.The major axes orientation of middle reception lamp is perpendicular to second edge and point to first edge; The middle major axes orientation that receives the reception lamp of lamp both sides becomes the angle of 0 to 90 degree with centre reception lamp major axes orientation respectively and is called left-leaning lamp and the Right deviation reception lamp of receiving respectively; The left-leaning lamp that receives is called left side and the right side that receives the lamp group respectively with the side that Right deviation receives the lamp place, first receive the lamp array the reception lamp to add up to m individual.The the 20th [1], 20 [2] ... 20 [a] ... the corresponding reception lamp of 20 [s] transmitting lamp group is 20 (1), 20 (2), 20 (3), 20 (4), 20 (5), 20 (6) ... 20 (i-1), 20 (i), 20 (i+1) ... 20 (m-2), 20 (m-1), 20 (m).

The s of the first transmitting lamp array 10 transmitting lamp group and first receives s of lamp array, and to receive the lamp group corresponding one by one, and the main shaft of the centre reception lamp of the middle transmitting lamp of each transmitting lamp group and the reception lamp group corresponding with it in a straight line.

Fig. 3 is the view that the second transmitting lamp array and second of embodiments of the invention receives the lamp array.

As shown in Figure 3, in the 3rd edge placement of touch-screen the second transmitting lamp array 30 is arranged.The second transmitting lamp array 30 comprises evenly distributed successively k transmitting lamp group 30 [1], 30 [2] ... 30 [b] ... 30 [k], 1<=b<=k wherein, and k is the integer greater than 1.Each transmitting lamp group comprises three transmitting lamp, and the direction of arrow is represented the major axes orientation of each transmitting lamp among the figure, and the major axes orientation of middle transmitting lamp is perpendicular to the 3rd edge and point to the 4th edge.The major axes orientation of the transmitting lamp of middle transmitting lamp both sides becomes the angle of 0 to 90 degree respectively and is called left-leaning transmitting lamp and Right deviation transmitting lamp respectively with middle transmitting lamp major axes orientation, a side at left-leaning transmitting lamp and Right deviation transmitting lamp place is called the left side and the right side of transmitting lamp group respectively.The transmitting lamp of the second transmitting lamp array 30 add up to n, then n=3k.The the 30th [1], 30 [2] ... 30 [b] ... the corresponding transmitting lamp of 30 [k] transmitting lamp group is 30 (1), 30 (2), 30 (3), 30 (4), 30 (5), 30 (6) ... 30 (j-1), 30 (j), 30 (j+1) ... 30 (n-2), 30 (n-1), 30 (n).

Have second to receive lamp array 40 in the 4th edge placement; Second receives lamp array 40 comprises that evenly distributed successively k receives lamp group 40 [1], 40 [2] ... 40 [b] ... 40 [k]; Wherein each reception lamp group comprises that three receive lamps; The direction of arrow representes respectively to receive the major axes orientation of lamp among the figure; The major axes orientation of middle reception lamp is perpendicular to the 4th edge and point to the 3rd edge, and the major axes orientation of the reception lamp of reception lamp both sides, centre becomes the angle of 0 to 90 degree also to be called "Left"-deviationist reception lamp and Right deviation reception lamp respectively with centre reception lamp major axes orientation respectively, and the side that left-leaning reception lamp and Right deviation reception lamp belong to is called the left side and the right side of reception lamp group respectively.Second receive lamp array 40 the reception lamp add up to n.The the 40th [1], 40 [2] ... 40 [b] ... it is 40 (1), 40 (2), 40 (3) that 40 [k] receive the corresponding reception lamp of lamp group, 40 (4), 40 (5), 40 (6) ... 40 (j-1), 40 (j), 40 (j+1) ... 40 (n-2), 40 (n-1), 40 (n).

The k of the second transmitting lamp array 30 transmitting lamp group and second receives k of lamp array 40, and to receive the lamp group corresponding one by one, and the main shaft of the centre reception lamp of the middle transmitting lamp of each transmitting lamp group and the reception lamp group corresponding with it in a straight line.

In scan method of the present invention, comprise intermediate lamp scanning process and inclination lamp scanning process.

Fig. 5 is the intermediate lamp scanning process of embodiments of the invention.

As shown in Figure 5, the intermediate lamp scanning process comprises that the first transmitting lamp array, 10 emission infrared lights, first receive lamp array 20 and receive the process of infrared light and the process that the second transmitting lamp array, 30 emission infrared lights, the second reception lamp array 40 receive infrared light.

Receiving lamp array 20 at the first transmitting lamp array, 10 emission infrared lights, first receives in the process of infrared light; Make the middle transmitting lamp emission infrared light of each transmitting lamp group of being arranged in first edge successively, the infrared light of transmitting lamp emission is by the h of a side of the corresponding corresponding reception lamp group that is arranged in second edge of the transmitting lamp group of transmitting lamp in the middle of each and this corresponding reception lamp group in the middle of each1Each h of individual and/or both sides1Receive lamp in the middle of each of individual reception lamp group and receive simultaneously, wherein 1<=h1<=15, such as h1Desirable 5.The not enough h of reception lamp group when corresponding corresponding reception lamp group one side that is arranged in second edge of the transmitting lamp group of middle transmitting lamp1The time, then by the h of the opposite side of the corresponding corresponding reception lamp group that is arranged in second edge of the transmitting lamp group of middle transmitting lamp and this corresponding reception lamp group1Receive the not enough h of lamp and this side in the middle of each of individual reception lamp group1Receiving lamp in the middle of each of individual reception lamp group receives simultaneously.That is, when generalized case is the middle transmitting lamp emission infrared light of each transmitting lamp group, by the corresponding corresponding reception lamp group that is arranged in second edge of the transmitting lamp group of transmitting lamp in the middle of each and each h of these corresponding reception lamp group both sides1Receiving lamp in the middle of each of individual reception lamp group receives; But near the intermediate lamp emission infrared light of the transmitting lamp group of two ends of the first transmitting lamp array 10 time, because the reception lamp group of the corresponding a certain side of corresponding reception lamp group that is arranged in second edge of the transmitting lamp group of middle transmitting lamp maybe not enough h1, at this moment just by the corresponding reception lamp group of the transmitting lamp group of this centre transmitting lamp and the not enough h of this side1The individual reception lamp group and the h of opposite side1Receiving lamp in the middle of each of individual reception lamp group receives simultaneously.

Receiving lamp array 40 at the second transmitting lamp array, 30 emission infrared lights, second receives in the process of infrared light; Make the middle transmitting lamp emission infrared light of each the transmitting lamp group that is arranged in said the 3rd edge successively, the infrared light of transmitting lamp emission is by the corresponding reception lamp group that is arranged in said the 4th edge of the transmitting lamp group correspondence of transmitting lamp in the middle of each and each h of these corresponding reception lamp group both sides in the middle of each2Receive lamp in the middle of each of individual reception lamp group and receive simultaneously, wherein 1<=h2<=15, such as h2Desirable 5.The not enough h of reception lamp group when corresponding corresponding reception lamp group one side that is arranged in second edge of the transmitting lamp group of middle transmitting lamp2The time, then by the h of the opposite side of the corresponding corresponding reception lamp group that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp and this corresponding reception lamp group2Receive the not enough h of lamp and this side in the middle of each of individual reception lamp group2Receiving lamp in the middle of each of individual reception lamp group receives simultaneously.

Fig. 6 is the synoptic diagram of a scanning process in the inclination lamp scanning process of embodiments of the invention.

As shown in Figure 6, in inclination lamp scanning process, the direction that increases progressively along the number that is arranged in each transmitting lamp group at first edge is since Right deviation transmitting lamp to the s-g of the 1st transmitting lamp group1The emission of Right deviation transmitting lamp infrared light, the wherein 1<=g of individual transmitting lamp group1<=15, promptly from s-g1+ 1 to s transmitting lamp group is total to g1The Right deviation transmitting lamp of individual transmitting lamp group is not launched infrared light, such as g1Desirable 6.The infrared light of Right deviation transmitting lamp emission of the transmitting lamp group of these emission infrared lights by be arranged in second edge, the pairing reception lamp of each transmitting lamp group group left side is at a distance from e1The e of individual reception lamp group1+ 1 receives lamp group to the e1+ 1+f1The common f of individual reception lamp group1Each Right deviation of individual reception lamp group receives lamp and receives, wherein 1<=e1<=15,2<=f1<=20, such as e1Desirable 5, f1Desirable 11.As the separated e in the pairing reception lamp of each transmitting lamp group group left side1The e of individual reception lamp group1+ 1 receives the not enough f in left side that the lamp group rises1The time, then by this deficiency f1Each Right deviation of individual reception lamp group receives lamp and receives.

Fig. 7 is the synoptic diagram of another scanning process in the inclination lamp scanning process of embodiments of the invention.

Direction as shown in Figure 7, as to successively decrease along the number that is arranged in each transmitting lamp group at first edge is since left-leaning transmitting lamp to the transmitting lamp group 10 [1+g of s transmitting lamp group 10 [s] ₁] left-leaning transmitting lamp, make the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in second edge, the pairing reception lamp of each transmitting lamp group group right side is at a distance from e ₁The e of individual reception lamp group ₁+ 1 receives lamp group to the e ₁+ 1+f ₁The common f of individual reception lamp group ₁The left-leaning lamp that receives of each of individual reception lamp group receives.That is 10 [1] to 10 [g, ₁] common g ₁The left-leaning transmitting lamp of individual transmitting lamp group is not launched infrared light.As the separated e in the pairing reception lamp of each transmitting lamp group group right side ₁The e of individual reception lamp group ₁+ 1 receives the not enough f in right side that the lamp group rises ₁The time, then by this deficiency f ₁The left-leaning lamp that receives of each of individual reception lamp group receives.

Fig. 8 is the synoptic diagram of another scanning process in the inclination lamp scanning process of embodiments of the invention.

Direction as shown in Figure 8, as to increase progressively along the number that is arranged in each transmitting lamp group at first edge is since Right deviation transmitting lamp to the s-t of the 1st transmitting lamp group 10 [1]1Individual transmitting lamp group 10 [s-t1] the Right deviation transmitting lamp, 1<=t wherein1<=15, such as t1Desirable 6, make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in second edge, the pairing reception lamp of each transmitting lamp group group left side u altogether1Receive lamp in the middle of each of individual reception lamp group and receive, wherein 1<=u1<=15, such as u1Desirable 5.The number deficiency u of the reception lamp group on the left of the pairing reception lamp of transmitting lamp group group1The time, then by this deficiency u1Receiving lamp in the middle of each of individual reception lamp group receives.

Fig. 9 is the synoptic diagram of another scanning process in the inclination lamp scanning process of embodiments of the invention.

Direction as shown in Figure 9, as to successively decrease along the number that is arranged in each transmitting lamp group at first edge is since left-leaning transmitting lamp to the 1+t of s transmitting lamp group 10 [s] ₁Individual transmitting lamp group 10 [1+t ₁] left-leaning transmitting lamp, make the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in second edge, the pairing reception lamp of each transmitting lamp group group right side u altogether ₁Receive lamp in the middle of each of individual reception lamp group and receive, as the number deficiency u of the reception lamp group on the pairing reception lamp of transmitting lamp group group right side ₁The time, then by this deficiency u ₁Receiving lamp in the middle of each of individual reception lamp group receives.

Figure 10 is the synoptic diagram of a scanning process in the inclination lamp scanning process of embodiments of the invention.

Direction shown in figure 10, as to increase progressively along the number that is arranged in each transmitting lamp group at first edge is since left-leaning transmitting lamp to the v of the 1st transmitting lamp group 10 [1]1Individual transmitting lamp group 10 [v1] left-leaning transmitting lamp, 1<=v wherein1<=15, such as v1Desirable 6; Make the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in second edge, the 1st transmitting lamp group pairing reception lamp group and the 1st the pairing reception lamp of transmitting lamp group group left side w altogether1Individual reception lamp group 20 [s-w1+ 1] ... each Right deviation of 20 [s] receives lamp and receives, wherein 1<=w1<=30, such as w1Desirable 11.

Figure 11 is the synoptic diagram of another scanning process in the inclination lamp scanning process of embodiments of the invention.

Direction shown in figure 11, as to successively decrease along the number that is arranged in each transmitting lamp group at first edge is since Right deviation transmitting lamp to the s-v of s transmitting lamp group 10 [s] ₁+ 1 transmitting lamp group 10 [s-v ₁+ 1] Right deviation transmitting lamp; Make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in second edge, a s transmitting lamp group pairing reception lamp group and s the common w in the pairing reception lamp of transmitting lamp group group right side ₁Individual reception lamp group 20 [s-w ₁+ 1] ... the left-leaning lamp that receives of each of 20 [s] receives.

The process that the process of the second transmitting lamp array, 30 emission infrared lights, the second reception lamp array, 40 reception infrared lights and the first transmitting lamp array, 10 emission infrared lights, the first reception lamp array 20 receive infrared light is similar; Receiving lamp array 40 at the second transmitting lamp array, 30 emission infrared lights, second receives in the process of infrared light; The direction that increases progressively along the number that is arranged in each transmitting lamp group at the 3rd edge is since Right deviation transmitting lamp to the k-g of the 1st transmitting lamp group 30 [1]2Individual transmitting lamp group 30 [k-g2] the Right deviation transmitting lamp, 1<=g wherein2<=15, such as g2Desirable 6, make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in the 4th edge, the pairing reception lamp of each transmitting lamp group group left side is at a distance from e2The e of individual reception lamp group2+ 1 receives lamp group to the e2+ 1+f2The common f of individual reception lamp group2Each Right deviation of individual reception lamp group receives lamp and receives, wherein 1<=e2<=15,2<=f2<=20, such as e2Desirable 5, f2Desirable 11.As the separated e in the pairing reception lamp of each transmitting lamp group group left side2The e of individual reception lamp group2+ 1 receives the not enough f in left side that the lamp group rises2The time, then by this deficiency f2Each Right deviation of individual reception lamp group receives lamp and receives.

The direction of successively decreasing along the number that is arranged in each transmitting lamp group at the 3rd edge is since left-leaning transmitting lamp to the 1+g of k transmitting lamp group 30 [k] ₂Individual transmitting lamp group 30 [1+g ₂] left-leaning transmitting lamp, make the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in the 4th edge, the pairing reception lamp of each transmitting lamp group group right side is at a distance from e ₂The e of individual reception lamp group ₂+ 1 receives lamp group to the e ₂+ 1+f ₂The common f of individual reception lamp group ₂The left-leaning lamp that receives of each of individual reception lamp group receives, as the separated e in the pairing reception lamp of each transmitting lamp group group right side ₂The e of individual reception lamp group ₂+ 1 receives the not enough f in right side that the lamp group rises ₂The time, then by this deficiency f ₂The left-leaning lamp that receives of each of individual reception lamp group receives.

The direction that increases progressively along the number that is arranged in each transmitting lamp group at the 3rd edge is since Right deviation transmitting lamp to the k-t of the 1st transmitting lamp group 30 [1]2Individual transmitting lamp group 30 [k-t2] the Right deviation transmitting lamp, 1<=t wherein2<=15, such as t2Desirable 6, make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in the 4th edge, the pairing reception lamp of each transmitting lamp group group left side u altogether2Receive lamp in the middle of each of individual reception lamp group and receive, wherein 1<=u2<=15, such as u2Desirable 5.The number deficiency u of the reception lamp group on the left of the pairing reception lamp of transmitting lamp group group2The time, then by this deficiency u2Receiving lamp in the middle of each of individual reception lamp group receives.

The direction of successively decreasing along the number that is arranged in each transmitting lamp group at the 3rd edge is since left-leaning transmitting lamp to the 1+t of k transmitting lamp group 30 [k] ₂Individual transmitting lamp group 30 [1+t ₂] left-leaning transmitting lamp, make the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in the 4th edge, the pairing reception lamp of each transmitting lamp group group right side u altogether ₂Receive lamp in the middle of each of individual reception lamp group and receive, as the number deficiency u of the reception lamp group on the pairing reception lamp of transmitting lamp group group right side ₂The time, then by this deficiency u ₂Receiving lamp in the middle of each of individual reception lamp group receives.

The direction that increases progressively along the number that is arranged in each transmitting lamp group at the 3rd edge is since left-leaning transmitting lamp to the v of the 1st transmitting lamp group 30 [1]2Individual transmitting lamp group 30 [v2] left-leaning transmitting lamp, 1<=v wherein2<=15, such as v2Desirable 6; Make the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in the 4th edge, the 1st transmitting lamp group pairing reception lamp group and the 1st the pairing reception lamp of transmitting lamp group group left side w altogether2Individual reception lamp group 40 [s-w2+ 1] ... each Right deviation of 40 [s] receives lamp and receives, wherein 1<=w2<=30, such as w2Desirable 11.

The direction of successively decreasing along the number that is arranged in each transmitting lamp group at said the 3rd edge is since Right deviation transmitting lamp to the k-v of k transmitting lamp group 30 [k] ₂+ 1 transmitting lamp group 30 [k-v ₂+ 1] Right deviation transmitting lamp; Make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in the 4th edge, a k transmitting lamp group pairing reception lamp group and k the common w in the pairing reception lamp of transmitting lamp group group right side ₂Individual reception lamp group 40 [s-w ₂+ 1] ... the left-leaning lamp that receives of each of 40 [s] receives.

Figure 12 is the arrangement of transmitting lamp of transmitting lamp group of the first transmitting lamp array 10 of embodiments of the invention.

Shown in figure 12, transmitting lamp group 10 [a] comprises three transmitting lamp 10 (i-1), 10 (i), 10 (i+1), and 10 (i) are middle transmitting lamp, and 10 (i-1) are left-leaning transmitting lamp, and 10 (i+1) are the Right deviation transmitting lamp.Left-leaning transmitting lamp 10 (i-1) is arranged in the symmetria bilateralis of middle transmitting lamp 10 (i) with Right deviation transmitting lamp 10 (i+1).Angle between the main shaft of left-leaning transmitting lamp 10 (i-1) and Right deviation transmitting lamp 10 (i+1) and the main shaft of middle transmitting lamp 10 (i) is changeable, three kinds of modes shown in figure.Angle between the main shaft of the corresponding left-leaning transmitting lamp 10 (i-1) between each transmitting lamp group of the first transmitting lamp array 10 and the main shaft of Right deviation transmitting lamp 10 (i+1) and middle transmitting lamp 10 (i) can be all identical, also can be different.

Figure 13 is the arrangement of the reception lamp of first of the embodiments of the invention reception lamp group that receives lamp array 20.

Shown in figure 13, receive lamp group 20 [a] and comprise that three receive lamp 20 (i-1), 20 (i), 20 (i+1), 20 (i) are the middle lamp that receives, and 20 (i+1) are the left-leaning lamp that receives, and 20 (i-1) receive lamp for Right deviation.Left-leaning reception lamp 20 (i+1) is sent out reception lamp 20 (i-1) with Right deviation and is arranged in the symmetria bilateralis of centre reception lamp 20 (i).Angle between the main shaft of left-leaning reception lamp 20 (i+1) and Right deviation reception lamp 20 (i-1) and the main shaft of middle reception lamp 20 (i) is changeable, three kinds of modes shown in figure.First receive lamp array 20 the angle that respectively receives between the main shaft that corresponding left-leaning between the lamp group receive main shaft that lamp 20 (i+1) and Right deviation receive lamp 20 (i-1) and middle reception lamp 20 (i) can be all identical, also can difference.

Figure 14 is the arrangement of transmitting lamp of transmitting lamp group of the second transmitting lamp array 30 of embodiments of the invention.

Shown in figure 14, transmitting lamp group 30 [b] comprises three transmitting lamp 30 (j-1), 30 (j), 30 (j+1), and 30 (j) are middle transmitting lamp, and 30 (j-1) are left-leaning transmitting lamp, and 30 (j+1) are the Right deviation transmitting lamp.Left-leaning transmitting lamp 30 (j-1) is arranged in the symmetria bilateralis of middle transmitting lamp 30 (j) with Right deviation transmitting lamp 30 (j+1).Angle between the main shaft of left-leaning transmitting lamp 30 (j-1) and Right deviation transmitting lamp 30 (j+1) and the main shaft of middle transmitting lamp 30 (j) is changeable, three kinds of modes shown in figure.Angle between the main shaft of the corresponding left-leaning transmitting lamp 30 (j-1) between each transmitting lamp group of the second transmitting lamp array 30 and the main shaft of Right deviation transmitting lamp 30 (j+1) and middle transmitting lamp 30 (j) can be all identical, also can be different.

Figure 15 is the arrangement of the reception lamp of second of the embodiments of the invention reception lamp group that receives lamp array 40.

Shown in figure 15, receive lamp group 40 [b] and comprise that three receive lamp 40 (j-1), 40 (j), 40 (j+1), 40 (j) are the middle lamp that receives, and 40 (j+1) are the left-leaning lamp that receives, and 40 (j-1) receive lamp for Right deviation.The left-leaning lamp 40 (j+1) that receives is arranged with Right deviation reception lamp 40 (j-1) receives lamp 40 (j) in the centre symmetria bilateralis.Angle between the main shaft of left-leaning reception lamp 40 (j+1) and Right deviation reception lamp 40 (j-1) and the main shaft of middle reception lamp 40 (j) is changeable, three kinds of modes shown in figure.Second receive lamp array 40 the angle that respectively receives between the main shaft that corresponding left-leaning between the lamp group receive main shaft that lamp 40 (j+1) and Right deviation receive lamp 40 (j-1) and middle reception lamp 40 (j) can be all identical, also can difference.

Shown in figure 16, the layout at four edges of the touch-screen in the layout at four edges of the touch-screen of this scanning system and the above-mentioned scan method is identical.Scanning system be included in first edge placement the first transmitting lamp array 10, receive lamp array 20 in first of second edge placement, at the second transmitting lamp array 30 of the 3rd edge placement, receive lamp array 40 in second of the 4th edge placement; The arrangement of the transmitting lamp group of each array, reception lamp group and transmitting lamp, reception lamp is identical with the corresponding arrangement in the above-mentioned scan method, does not give unnecessary details here.

Scanning system also comprises scan controller 50, and this scan controller 50 receives lamp array 20 with the said first transmitting lamp array 10, first, the second transmitting lamp array 30, second receives lamp array 40 and is connected respectively, is used for the gated sweep mode.Scan control process that scan controller 50 is carried out such as the scanning process in the above-mentioned scan method are not given unnecessary details here.

Scanning system also comprises touch point analytical equipment 60, and this touch point analytical equipment 60 is connected with said scan controller 50, analyzes touch point position according to the scan-data that scan controller 50 provides.

Fig. 2 is the scanning design sketch that adopts the embodiment of scan method of the present invention and scanning system.

As shown in Figure 2, adopt scan method of the present invention or scanning system to realize wide-angle scanning, improved scanning density, reduced terrible some area size effectively, improved the touch point analysis precision.

Claims

1. scan method that is used for touch-screen; Said touch-screen comprises first edge, second edge, the 3rd edge and the 4th edge, and said four edges surround the touch surveyed area of touch-screen, wherein; First edge parallel with second edge over against; The 3rd edge parallel with the 4th edge over against, first edge respectively with the 3rd edge and the 4th edge quadrature, second edge respectively with the 3rd edge and the 4th edge quadrature; In said first edge placement first transmitting lamp array is arranged; This first transmitting lamp array comprises evenly distributed successively s transmitting lamp group; Wherein s is the integer greater than 1; Wherein each transmitting lamp group comprises three transmitting lamp; The major axes orientation of middle transmitting lamp is perpendicular to said first edge and point to said second edge, and the major axes orientation of the transmitting lamp of said middle transmitting lamp both sides becomes the angle of 0 to 90 degree respectively and is called left-leaning transmitting lamp and Right deviation transmitting lamp respectively with middle transmitting lamp major axes orientation, and a side at left-leaning transmitting lamp and Right deviation transmitting lamp place is called the left side and the right side of transmitting lamp group respectively; The transmitting lamp of the said first transmitting lamp array add up to m, then m=3s; Have first to receive the lamp array in said second edge placement; This first reception lamp array comprises that evenly distributed successively s receives the lamp group; Wherein each reception lamp group comprises that three receive lamps; The major axes orientation of middle reception lamp is perpendicular to said second edge and point to said first edge; The major axes orientation that receives the reception lamp of lamp both sides in the middle of said becomes the angle of 0 to 90 degree with centre reception lamp major axes orientation respectively and is called left-leaning lamp and the Right deviation reception lamp of receiving respectively; A left-leaning side that receives lamp and Right deviation reception lamp place is called left side and the right side that receives the lamp group respectively; Said first receive the lamp array the reception lamp add up to m, it is corresponding one by one that the s of the said first transmitting lamp array transmitting lamp group and said first receives s reception lamp group of lamp array, the main shaft of the middle reception lamp of the middle transmitting lamp of each transmitting lamp group and the reception lamp group corresponding with it in a straight line; In said the 3rd edge placement the second transmitting lamp array is arranged; This second transmitting lamp array comprises evenly distributed successively k transmitting lamp group; Wherein k is the integer greater than 1; Wherein each transmitting lamp group comprises three transmitting lamp; The major axes orientation of middle transmitting lamp is perpendicular to said the 3rd edge and point to said the 4th edge, and the major axes orientation of the transmitting lamp of said middle transmitting lamp both sides becomes the angle of 0 to 90 degree respectively and is called left-leaning transmitting lamp and Right deviation transmitting lamp respectively with middle transmitting lamp major axes orientation, and a side at left-leaning transmitting lamp and Right deviation transmitting lamp place is called the left side and the right side of transmitting lamp group respectively; The transmitting lamp of the said second transmitting lamp array add up to n, then n=3k; Have second to receive the lamp array in said the 4th edge placement; This second reception lamp array comprises that evenly distributed successively k receives the lamp group; Wherein each reception lamp group comprises that three receive lamps; The major axes orientation of middle reception lamp is perpendicular to said the 4th edge and point to said the 3rd edge; The major axes orientation that receives the reception lamp of lamp both sides in the middle of said becomes the angle of 0 to 90 degree with centre reception lamp major axes orientation respectively and is called left-leaning lamp and the Right deviation reception lamp of receiving respectively; A left-leaning side that receives lamp and Right deviation reception lamp place is called left side and the right side that receives the lamp group respectively; Said second receive the lamp array the reception lamp add up to n, it is corresponding one by one that the k of the said second transmitting lamp array transmitting lamp group and said second receives k reception lamp group of lamp array, the main shaft of the middle reception lamp of the middle transmitting lamp of each transmitting lamp group and the reception lamp group corresponding with it in a straight line; This method comprises:

The intermediate lamp scanning process; This intermediate lamp scanning process comprises: make the middle transmitting lamp emission infrared light of each transmitting lamp group of being arranged in said first edge successively, the infrared light of transmitting lamp emission is by each h of the both sides of the corresponding corresponding reception lamp group that is arranged in said second edge of the transmitting lamp group of transmitting lamp in the middle of each and this corresponding reception lamp group in the middle of each1Receive lamp in the middle of each of individual reception lamp group and receive simultaneously, wherein 1<=h1<=15, as the not enough h of reception lamp group of corresponding corresponding reception lamp group one side that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp1The time, then by the h of the opposite side of the corresponding corresponding reception lamp group that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp and this corresponding reception lamp group1Receive the not enough h of a lamp and a said side in the middle of each of individual reception lamp group1Receiving lamp in the middle of each of individual reception lamp group receives simultaneously; Make the middle transmitting lamp emission infrared light of each transmitting lamp group of being arranged in said the 3rd edge successively, the infrared light of transmitting lamp emission is by each h of the both sides of the corresponding corresponding reception lamp group that is arranged in said the 4th edge of the transmitting lamp group of transmitting lamp in the middle of each and this corresponding reception lamp group in the middle of each2Receive lamp in the middle of each of individual reception lamp group and receive simultaneously, wherein 1<=h2<=15, as the not enough h of reception lamp group of corresponding corresponding reception lamp group one side that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp2The time, then by the h of the opposite side of the corresponding corresponding reception lamp group that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp and this corresponding reception lamp group2Receive the not enough h of a lamp and a said side in the middle of each of individual reception lamp group2Receiving lamp in the middle of each of individual reception lamp group receives simultaneously;

2. the scan method that is used for touch-screen as claimed in claim 1 is characterized in that, said inclination lamp scanning process comprises:

The direction that increases progressively along the number that is arranged in each transmitting lamp group at said first edge is since Right deviation transmitting lamp to the s-g of the 1st transmitting lamp group1The Right deviation transmitting lamp of individual transmitting lamp group, wherein 1<=g1<=15, make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in said second edge, the pairing reception lamp of each transmitting lamp group group left side is at a distance from e1The e of individual reception lamp group1+ 1 receives lamp group to the e1+ 1+f1The common f of individual reception lamp group1Each Right deviation of individual reception lamp group receives lamp and receives, wherein 1<=e1<=15,2<=f1<=20, as the separated e in the pairing reception lamp of transmitting lamp group group left side1The e of individual reception lamp group1+ 1 receives the not enough f in left side that the lamp group rises1The time, then by this deficiency f1Each Right deviation of individual reception lamp group receives lamp and receives;

The direction of successively decreasing along the number that is arranged in each transmitting lamp group at said first edge is since left-leaning transmitting lamp to the 1+g of s transmitting lamp group ₁The left-leaning transmitting lamp of individual transmitting lamp group makes the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in said second edge, the pairing reception lamp of each transmitting lamp group group right side is at a distance from e ₁The e of individual reception lamp group ₁+ 1 receives lamp group to the e ₁+ 1+f ₁The common f of individual reception lamp group ₁The left-leaning lamp that receives of each of individual reception lamp group receives, as the separated e in the pairing reception lamp of transmitting lamp group group right side ₁The e of individual reception lamp group ₁+ 1 receives the not enough f in right side that the lamp group rises ₁The time, then by this deficiency f ₁The left-leaning lamp that receives of each of individual reception lamp group receives;

The direction that increases progressively along the number that is arranged in each transmitting lamp group at said first edge is since Right deviation transmitting lamp to the s-t of the 1st transmitting lamp group1The Right deviation transmitting lamp of individual transmitting lamp group, wherein 1<=t1<=15, make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in said second edge, the pairing reception lamp of each transmitting lamp group group left side u altogether1Receive lamp in the middle of each of individual reception lamp group and receive, wherein 1<=u1<=15, the number deficiency u of the reception lamp group on the left of the pairing reception lamp of transmitting lamp group group1The time, then by this deficiency u1Receiving lamp in the middle of each of individual reception lamp group receives;

The direction of successively decreasing along the number that is arranged in each transmitting lamp group at said first edge is since left-leaning transmitting lamp to the 1+t of s transmitting lamp group ₁The left-leaning transmitting lamp of individual transmitting lamp group makes the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in said second edge, the pairing reception lamp of each transmitting lamp group group right side u altogether ₁Receive lamp in the middle of each of individual reception lamp group and receive, as the number deficiency u of the reception lamp group on the pairing reception lamp of transmitting lamp group group right side ₁The time, then by this deficiency u ₁Receiving lamp in the middle of each of individual reception lamp group receives;

The direction that increases progressively along the number that is arranged in each transmitting lamp group at said first edge is since left-leaning transmitting lamp to the v of the 1st transmitting lamp group1The left-leaning transmitting lamp of individual transmitting lamp group, wherein 1<=v1<=15; Make the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in said second edge, the 1st transmitting lamp group pairing reception lamp group and the 1st the pairing reception lamp of transmitting lamp group group left side w altogether1Each Right deviation of individual reception lamp group receives lamp and receives, wherein 1<=w1<=30;

The direction of successively decreasing along the number that is arranged in each transmitting lamp group at said first edge is since Right deviation transmitting lamp to the s-v of s transmitting lamp group ₁The Right deviation transmitting lamp of+1 transmitting lamp group; Make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in said second edge, a s transmitting lamp group pairing reception lamp group and s the common w in the pairing reception lamp of transmitting lamp group group right side ₁The left-leaning lamp that receives of each of individual reception lamp group receives;

The direction that increases progressively along the number that is arranged in each transmitting lamp group at said the 3rd edge is since Right deviation transmitting lamp to the k-g of the 1st transmitting lamp group2The Right deviation transmitting lamp of individual transmitting lamp group, wherein 1<=g2<=15, make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in said the 4th edge, the pairing reception lamp of each transmitting lamp group group left side is at a distance from e2The e of individual reception lamp group2+ 1 receives lamp group to the e2+ 1+f2The common f of individual reception lamp group2Each Right deviation of individual reception lamp group receives lamp and receives, wherein 1<=e2<=15,2<=f2<=20, as the separated e in the pairing reception lamp of each transmitting lamp group group left side2The e of individual reception lamp group2+ 1 receives the not enough f in left side that the lamp group rises2The time, then by this deficiency f2Each Right deviation of individual reception lamp group receives lamp and receives;

The direction of successively decreasing along the number that is arranged in each transmitting lamp group at said the 3rd edge is since left-leaning transmitting lamp to the 1+g of k transmitting lamp group ₂The left-leaning transmitting lamp of individual transmitting lamp group makes the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in said the 4th edge, the pairing reception lamp of each transmitting lamp group group right side is at a distance from e ₂The e of individual reception lamp group ₂+ 1 receives lamp group to the e ₂+ 1+f ₂The common f of individual reception lamp group ₂The left-leaning lamp that receives of each of individual reception lamp group receives, when the pairing reception lamp of each transmitting lamp group group by side at a distance from e ₂The e of individual reception lamp group ₂+ 1 receives the not enough f in right side that the lamp group rises ₂The time, then by this deficiency f ₂The left-leaning lamp that receives of each of individual reception lamp group receives;

The direction that increases progressively along the number that is arranged in each transmitting lamp group at said the 3rd edge is since Right deviation transmitting lamp to the k-t of the 1st transmitting lamp group2The Right deviation transmitting lamp of individual transmitting lamp group, wherein 1<=t2<=15, make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in said the 4th edge, the pairing reception lamp of each transmitting lamp group group left side u altogether2Receive lamp in the middle of each of individual reception lamp group and receive, wherein 1<=u2<=15, the number deficiency u of the reception lamp group on the left of the pairing reception lamp of transmitting lamp group group2The time, then by this deficiency u2Receiving lamp in the middle of each of individual reception lamp group receives;

The direction of successively decreasing along the number that is arranged in each transmitting lamp group at said the 3rd edge is since left-leaning transmitting lamp to the 1+t of k transmitting lamp group ₂The left-leaning transmitting lamp of individual transmitting lamp group makes the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in said the 4th edge, the pairing reception lamp of each transmitting lamp group group right side u altogether ₂Receive lamp in the middle of each of individual reception lamp group and receive, as the number deficiency u of the reception lamp group on the pairing reception lamp of transmitting lamp group group right side ₂The time, then by this deficiency u ₂Receiving lamp in the middle of each of individual reception lamp group receives;

The direction that increases progressively along the number that is arranged in each transmitting lamp group at said the 3rd edge is since left-leaning transmitting lamp to the v of the 1st transmitting lamp group2The left-leaning transmitting lamp of individual transmitting lamp group, wherein 1<=v2<=15; Make the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in said the 4th edge, the 1st transmitting lamp group pairing reception lamp group and the 1st the pairing reception lamp of transmitting lamp group group left side w altogether2Each Right deviation of individual reception lamp group receives lamp and receives, wherein 1<=w2<=30;

The direction of successively decreasing along the number that is arranged in each transmitting lamp group at said the 3rd edge is since Right deviation transmitting lamp to the k-v of k transmitting lamp group ₂The Right deviation transmitting lamp of+1 transmitting lamp group; Make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in said the 4th edge, a k transmitting lamp group pairing reception lamp group and k the common w in the pairing reception lamp of transmitting lamp group group right side ₂The left-leaning lamp that receives of each of individual reception lamp group receives.

3. according to claim 1 or claim 2 the scan method that is used for touch-screen; It is characterized in that; The left-leaning transmitting lamp main shaft of described each transmitting lamp group and the angle of intermediate lamp main shaft equate that with the angle of Right deviation transmitting lamp main shaft and intermediate lamp main shaft each receives the "Left"-deviationist reception lamp main shaft of lamp group and the angle of intermediate lamp main shaft equates with the angle that Right deviation receives lamp main shaft and intermediate lamp main shaft.

4. the scan method that is used for touch-screen as claimed in claim 3; It is characterized in that the angle of the left-leaning transmitting lamp main shaft of described each transmitting lamp group and the angle of intermediate lamp main shaft or Right deviation transmitting lamp main shaft and intermediate lamp main shaft receives the "Left"-deviationist reception lamp main shaft of lamp group with each or the angle of intermediate lamp main shaft equates with the angle that Right deviation receives lamp main shaft and intermediate lamp main shaft.

5. scanning system that is used for touch-screen; Said touch-screen comprises first edge, second edge, the 3rd edge and the 4th edge, and said four edges surround the touch surveyed area of touch-screen, wherein; First edge parallel with second edge over against; The 3rd edge parallel with the 4th edge over against, first edge respectively with the 3rd edge and the 4th edge quadrature, second edge respectively with the 3rd edge and the 4th edge quadrature; This system comprises:

The first transmitting lamp array in said first edge placement; This first transmitting lamp array comprises evenly distributed successively s transmitting lamp group; Wherein s is the integer greater than 1; Wherein each transmitting lamp group comprises three transmitting lamp; The major axes orientation of middle transmitting lamp is perpendicular to said first edge and point to said second edge, and the major axes orientation of the transmitting lamp of said middle transmitting lamp both sides becomes the angle of 0 to 90 degree respectively and is called left-leaning transmitting lamp and Right deviation transmitting lamp respectively with middle transmitting lamp major axes orientation, and a side at left-leaning transmitting lamp and Right deviation transmitting lamp place is called the left side and the right side of transmitting lamp group respectively; The transmitting lamp of the said first transmitting lamp array add up to m, m=3s;

Receive the lamp array in first of said second edge placement; This first reception lamp array comprises that evenly distributed successively s receives the lamp group; Wherein each reception lamp group comprises that three receive lamps; The major axes orientation of middle reception lamp is perpendicular to said second edge and point to said first edge; The major axes orientation that receives the reception lamp of lamp both sides in the middle of said becomes the angle of 0 to 90 degree with centre reception lamp major axes orientation respectively and is called left-leaning lamp and the Right deviation reception lamp of receiving respectively; A left-leaning side that receives lamp and Right deviation reception lamp place is called left side and the right side that receives the lamp group respectively; Said first receive the lamp array the reception lamp add up to m, it is corresponding one by one that the s of the said first transmitting lamp array transmitting lamp group and said first receives s reception lamp group of lamp array, the main shaft of the middle reception lamp of the middle transmitting lamp of each transmitting lamp group and the reception lamp group corresponding with it in a straight line;

The second transmitting lamp array in said the 3rd edge placement; This second transmitting lamp array comprises evenly distributed successively k transmitting lamp group; Wherein k is the integer greater than 1; Wherein each transmitting lamp group comprises three transmitting lamp; The major axes orientation of middle transmitting lamp is perpendicular to said the 3rd edge and point to said the 4th edge, and the major axes orientation of the transmitting lamp of said middle transmitting lamp both sides becomes the angle of 0 to 90 degree respectively and is called left-leaning transmitting lamp and Right deviation transmitting lamp respectively with middle transmitting lamp major axes orientation, and a side at left-leaning transmitting lamp and Right deviation transmitting lamp place is called the left side and the right side of transmitting lamp group respectively; The transmitting lamp of the said second transmitting lamp array add up to n, n=3k;

Receive the lamp array in second of said the 4th edge placement; This second reception lamp array comprises that evenly distributed successively k receives the lamp group; Wherein each reception lamp group comprises that three receive lamps; The major axes orientation of middle reception lamp is perpendicular to said the 4th edge and point to said the 3rd edge; The major axes orientation that receives the reception lamp of lamp both sides in the middle of said becomes the angle of 0 to 90 degree with centre reception lamp major axes orientation respectively and is called left-leaning lamp and the Right deviation reception lamp of receiving respectively; A left-leaning side that receives lamp and Right deviation reception lamp place is called left side and the right side that receives the lamp group respectively; Said second receive the lamp array the reception lamp add up to n, it is corresponding one by one that the k of the said second transmitting lamp array transmitting lamp group and said second receives k reception lamp group of lamp array, the main shaft of the middle reception lamp of the middle transmitting lamp of each transmitting lamp group and the reception lamp group corresponding with it in a straight line;

Scan controller, this scan controller receives the lamp array with the said first transmitting lamp array, first, the second transmitting lamp array, second receives the lamp array and is connected respectively, is used for the gated sweep mode;

The touch point analytical equipment, this touch point analytical equipment is connected with said scan controller, analyzes touch point position according to the scan-data that scan controller provides;

Wherein, Scan controller carries out intermediate lamp scanning process and inclination lamp scanning process; Said intermediate lamp scanning process comprises: make the middle transmitting lamp emission infrared light of each transmitting lamp group of being arranged in said first edge successively, the infrared light of transmitting lamp emission is by each h of the both sides of the corresponding corresponding reception lamp group that is arranged in said second edge of the transmitting lamp group of transmitting lamp in the middle of each and this corresponding reception lamp group in the middle of each1Receive lamp in the middle of each of individual reception lamp group and receive simultaneously, wherein 1<=h1<=15, as the not enough h of reception lamp group of corresponding corresponding reception lamp group one side that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp1The time, then by the h of the opposite side of the corresponding corresponding reception lamp group that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp and this corresponding reception lamp group1Receive the not enough h of a lamp and a said side in the middle of each of individual reception lamp group1Receiving lamp in the middle of each of individual reception lamp group receives simultaneously; Make the middle transmitting lamp emission infrared light of each transmitting lamp group of being arranged in said the 3rd edge successively, the infrared light of transmitting lamp emission is by each h of the both sides of the corresponding corresponding reception lamp group that is arranged in said the 4th edge of the transmitting lamp group of transmitting lamp in the middle of each and this corresponding reception lamp group in the middle of each2Receive lamp in the middle of each of individual reception lamp group and receive simultaneously, wherein 1<=h2<=15, as the not enough h of reception lamp group of corresponding corresponding reception lamp group one side that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp2The time, then by the h of the opposite side of the corresponding corresponding reception lamp group that is arranged in said second edge of the transmitting lamp group of middle transmitting lamp and this corresponding reception lamp group2Receive the not enough h of a lamp and a said side in the middle of each of individual reception lamp group2Receiving lamp in the middle of each of individual reception lamp group receives simultaneously; Said inclination lamp scanning process comprises: make the "Left"-deviationist except that middle transmitting lamp and/or the Right deviation transmitting lamp emission infrared light of each the transmitting lamp group that is arranged in said first edge, by the reception lamp reception of the selected reception lamp group that is arranged in said second edge; Make the "Left"-deviationist except that middle transmitting lamp and/or the Right deviation transmitting lamp emission infrared light of each the transmitting lamp group that is arranged in said the 3rd edge, by the reception lamp reception of the selected reception lamp group that is arranged in said the 4th edge.

6. the scanning system that is used for touch-screen as claimed in claim 5 is characterized in that, the inclination lamp scanning process that wherein said scan controller carried out comprises:

The direction that increases progressively along the number that is arranged in each transmitting lamp group at said first edge is since Right deviation transmitting lamp to the s-g of the 1st transmitting lamp group1The Right deviation transmitting lamp of individual transmitting lamp group, wherein 1<=g1<=15, make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in said second edge, the pairing reception lamp of each transmitting lamp group group left side is at a distance from e1The e of individual reception lamp group1+ 1 receives lamp group to the e1+ 1+f1The common f of individual reception lamp group1Each Right deviation of individual reception lamp group receives lamp and receives, wherein 1<=e1<=15,2<=f1<=20, as the separated e in the pairing reception lamp of each transmitting lamp group group left side1The e of individual reception lamp group1+ 1 receives the not enough f in left side that the lamp group rises1The time, then by this deficiency f1Each Right deviation of individual reception lamp group receives lamp and receives;

The direction of successively decreasing along the number that is arranged in each transmitting lamp group at said first edge is since left-leaning transmitting lamp to the 1+g of s transmitting lamp group ₁The left-leaning transmitting lamp of individual transmitting lamp group makes the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in said second edge, the pairing reception lamp of each transmitting lamp group group right side is at a distance from e ₁The e of individual reception lamp group ₁+ 1 receives lamp group to the e ₁+ 1+f ₁The common f of individual reception lamp group ₁The left-leaning lamp that receives of each of individual reception lamp group receives, as the separated e in the pairing reception lamp of each transmitting lamp group group right side ₁The e of individual reception lamp group ₁+ 1 receives the not enough f in right side that the lamp group rises ₁The time, then by this deficiency f ₁The left-leaning lamp that receives of each of individual reception lamp group receives;

The direction that increases progressively along the number that is arranged in each transmitting lamp group at said first edge is since Right deviation transmitting lamp to the s-t of the 1st transmitting lamp group1The Right deviation transmitting lamp of individual transmitting lamp group, wherein 1<=t1<=15, make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in said second edge, the pairing reception lamp of each transmitting lamp group group left side u altogether1Receive lamp in the middle of each of individual reception lamp group and receive, wherein 1<=u1<=15, the number deficiency u of the reception lamp group on the left of the pairing reception lamp of transmitting lamp group group1The time, then by this deficiency u1Receiving lamp in the middle of each of individual reception lamp group receives;

The direction that increases progressively along the number that is arranged in each transmitting lamp group at said first edge is since left-leaning transmitting lamp to the v of the 1st transmitting lamp group1The left-leaning transmitting lamp of individual transmitting lamp group, wherein 1<=v1<=15; Make the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in said second edge, the 1st transmitting lamp group pairing reception lamp group and the 1st the pairing reception lamp of transmitting lamp group group left side w altogether1Each Right deviation of individual reception lamp group receives lamp and receives, wherein 1<=w1<=30;

The direction that increases progressively along the number that is arranged in each transmitting lamp group at said the 3rd edge is since Right deviation transmitting lamp to the k-g of the 1st transmitting lamp group2The Right deviation transmitting lamp of individual transmitting lamp group, wherein 1<=g2<=15, make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in said the 4th edge, the pairing reception lamp of each transmitting lamp group group left side is at a distance from e2The e of individual reception lamp group2+ 1 receives lamp group to the e2+ 1+f2The common f of individual reception lamp group2Each Right deviation of individual reception lamp group receives lamp and receives, wherein 1<=e2<=15,2<=f2<=20, as the separated e in the pairing reception lamp of each transmitting lamp group group left side2The e of individual reception lamp group2+ 1 receives the not enough f in left side that the lamp group rises2The time, then by this deficiency f2Each Right deviation of individual reception lamp group receives lamp and receives;

The direction of successively decreasing along the number that is arranged in each transmitting lamp group at said the 3rd edge is since left-leaning transmitting lamp to the 1+g of k transmitting lamp group ₂The left-leaning transmitting lamp of individual transmitting lamp group makes the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in said the 4th edge, the pairing reception lamp of each transmitting lamp group group right side is at a distance from e ₂The e of individual reception lamp group ₂+ 1 receives lamp group to the e ₂+ 1+f ₂The common f of individual reception lamp group ₂The left-leaning lamp that receives of each of individual reception lamp group receives, as the separated e in the pairing reception lamp of each transmitting lamp group group right side ₂The e of individual reception lamp group ₂+ 1 receives the not enough f in right side that the lamp group rises ₂The time, then by this deficiency f ₂The left-leaning lamp that receives of each of individual reception lamp group receives;

The direction that increases progressively along the number that is arranged in each transmitting lamp group at said the 3rd edge is since Right deviation transmitting lamp to the k-t of the 1st transmitting lamp group2The Right deviation transmitting lamp of individual transmitting lamp group, wherein 1<=t2<=15, make each Right deviation transmitting lamp emission infrared light of each transmitting lamp group successively, the infrared light of the Right deviation transmitting lamp emission of each transmitting lamp group by be arranged in said the 4th edge, the pairing reception lamp of each transmitting lamp group group left side u altogether2Receive lamp in the middle of each of individual reception lamp group and receive, wherein 1<=u2<=15, the number deficiency u of the reception lamp group on the left of the pairing reception lamp of transmitting lamp group group2The time, then by this deficiency u2Receiving lamp in the middle of each of individual reception lamp group receives;

The direction that increases progressively along the number that is arranged in each transmitting lamp group at said the 3rd edge is since left-leaning transmitting lamp to the v of the 1st transmitting lamp group2The left-leaning transmitting lamp of individual transmitting lamp group, wherein 1<=v2<=15; Make the left-leaning transmitting lamp emission of each of each transmitting lamp group infrared light successively, the infrared light of the left-leaning transmitting lamp emission of each transmitting lamp group by be arranged in said the 4th edge, the 1st transmitting lamp group pairing reception lamp group and the 1st the pairing reception lamp of transmitting lamp group group left side w altogether2Each Right deviation of individual reception lamp group receives lamp and receives, wherein 1<=w2<=30;

7. like claim 5 or the 6 described scanning systems that are used for touch-screen; It is characterized in that; The left-leaning transmitting lamp main shaft of described each transmitting lamp group and the angle of intermediate lamp main shaft equate that with the angle of Right deviation transmitting lamp main shaft and intermediate lamp main shaft each receives the "Left"-deviationist reception lamp main shaft of lamp group and the angle of intermediate lamp main shaft equates with the angle that Right deviation receives lamp main shaft and intermediate lamp main shaft.

8. the scanning system that is used for touch-screen as claimed in claim 7; It is characterized in that the angle of the left-leaning transmitting lamp main shaft of described each transmitting lamp group and the angle of intermediate lamp main shaft or Right deviation transmitting lamp main shaft and intermediate lamp main shaft receives the "Left"-deviationist reception lamp main shaft of lamp group with each or the angle of intermediate lamp main shaft equates with the angle that Right deviation receives lamp main shaft and intermediate lamp main shaft.