CN103885567A - Method for rousing touch terminal and touch terminal - Google Patents
Method for rousing touch terminal and touch terminal Download PDFInfo
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- CN103885567A CN103885567A CN201410087757.9A CN201410087757A CN103885567A CN 103885567 A CN103885567 A CN 103885567A CN 201410087757 A CN201410087757 A CN 201410087757A CN 103885567 A CN103885567 A CN 103885567A
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Abstract
The embodiment of the invention provides a method for rousing a touch terminal and the touch terminal, and relates to the technical field of touch. The power consumption of the terminal can be lowered, and the service life of the terminal can be prolonged. The method comprises the steps that when the terminal is in the standby state, single-side scanning is carried out through first scanning frequency, and whether effective touch exists or not is detected; if the effective touch exists, full-screen scanning is carried out through second scanning frequency, and the first scanning frequency is lower than the second scanning frequency.
Description
Technical field
The present invention relates to touch technology field, relate in particular to a kind of awakening method and touch control terminal of touch control terminal.
Background technology
Touch-screen, as a kind of man-machine interaction mode, is widely used in all kinds of electric terminals, and the interactive mode of What You See Is What You Get is provided to user.Conventional touch-screen has resistance-type, condenser type, infrared type, surface acoustic wave type etc., wherein, best with the touch-control effect of capacitance touch control screen; But the Costco Wholesale of capacitive touch screen is higher, along with the change of Touch Screen size is large, it is particularly outstanding that its power consumption and Cost Problems seem.For TV, for seeking the replacement scheme of capacitance touch control screen, the infrared touch-control TV that utilizes infrared touch control detection device to develop in conjunction with TV is comparatively general.
As shown in Figure 1, for the infrared touch-control television terminal of one of the prior art, the adjacent both sides of this terminal touch screen are provided with infrared transmitting tube, another both sides are provided with infrared receiving tube, terminal drives all infrared transmitting tube transmitting infrared lights on both sides (long limit+minor face) successively, and receive infrared light by its corresponding infrared receiving tube, complete full screen scanning one time; In scanning process, if there is touch objects on touch screen, touch objects cognition shelters from tube-launched infrared light, makes receiving end cannot receive or receive the infrared light of the following intensity of threshold value, thereby can judge the concrete coordinate position of touch objects.
Terminal is in the time normally working, carry out a full screen scanning and represent that a scan period completes, when there is touch action within the scan period time, judge the particular location of touch-control, enter the next scan period simultaneously, for touch action such as slips fast, sweep frequency is higher, just more accurate for the judgement of position, fast-changing touch point.But higher sweep frequency means higher power consumption.Therefore, for reducing the overall power of terminal, in prior art, in the time of holding state, terminal scans with lower frequency, detects after touch action, scans, thereby realize low-power consumption by the low frequency scanning arranging under holding state with higher frequency.
Summary of the invention
Embodiments of the invention provide a kind of awakening method and touch control terminal of touch control terminal, can further reduce the power consumption of terminal, extend the serviceable life of terminal.
For achieving the above object, embodiments of the invention adopt following technical scheme:
An awakening method for touch control terminal, comprising:
Described terminal, under holding state, is carried out single side scan with the first sweep frequency, detects and whether has effective touch;
If exist, carry out full screen scanning with the second sweep frequency;
Wherein, described the first sweep frequency is lower than described the second sweep frequency.
Optionally, the arbitrary neighborhood both sides of the touch screen of described terminal are provided with infrared transmitting tube, and another both sides are provided with infrared receiving tube, describedly carry out single side scan with the first sweep frequency, comprising:
Drive the infrared transmitting tube transmitting infrared light arranging on arbitrary limit with the first sweep frequency;
The infrared receiving tube arranging on the opposite side on described arbitrary limit receives described infrared light.
Optionally, the described infrared transmitting tube transmitting infrared light arranging on arbitrary limit that drives with the first sweep frequency, specifically comprises:
With at least one the infrared transmitting tube transmitting infrared light in arbitrary limit described in described the first sweep frequency random drive.
Optionally, the described infrared transmitting tube transmitting infrared light arranging on arbitrary limit that drives with the first sweep frequency, specifically comprises:
With at least 2 infrared transmitting tubes transmitting infrared lights in arbitrary limit described in described the first sweep frequency random drive, and one, interval infrared transmitting tube at least between described at least 2 infrared transmitting tubes.
Optionally, in the infrared transmitting tube on described arbitrary limit, will be divided into one group at interval of the infrared transmitting tube of fixed number,,
The described infrared transmitting tube transmitting infrared light arranging on arbitrary limit that drives with the first sweep frequency, specifically comprises: drive the one group of infrared transmitting tube transmitting infrared light arranging on arbitrary limit with described the first sweep frequency.
Optionally, on described arbitrary limit, any infrared transmitting tube is to there being n infrared receiving tube on described opposite side, and on described arbitrary limit, the infrared receiving tube of all infrared transmitting tube and corresponding sides forms n group parallel light path, is describedly more than or equal to 1 integer for n;
Whether described detection exists effective touch to be:
In each scan period, detect with one group of parallel light path at random or in turn.
A kind of touch control terminal, comprising:
Detecting unit, under holding state, carries out single side scan with the first sweep frequency, detects and whether has effective touch;
Scanning element, while there is effectively touch, carries out full screen scanning with the second sweep frequency for detecting at described detecting unit; Wherein, described the first sweep frequency is lower than described the second sweep frequency.
Optionally, the arbitrary neighborhood both sides of the touch screen of described terminal are provided with infrared transmitting tube, and another both sides are provided with infrared receiving tube,,
Described detecting unit, specifically at least one the infrared transmitting tube transmitting infrared light with in arbitrary limit described in described the first sweep frequency random drive.
Optionally, described detecting unit, specifically at least 2 infrared transmitting tubes transmitting infrared lights with in arbitrary limit described in described the first sweep frequency random drive, and one, interval infrared transmitting tube at least between described at least 2 infrared transmitting tubes.
Optionally, in the infrared transmitting tube on described arbitrary limit, will be divided into one group at interval of the infrared transmitting tube of fixed number,,
Described detecting unit, specifically for driving the one group of infrared transmitting tube transmitting infrared light arranging on arbitrary limit with described the first sweep frequency.
Optionally, on described arbitrary limit, any infrared transmitting tube is to there being n infrared receiving tube on described opposite side, and on described arbitrary limit, the infrared receiving tube of all infrared transmitting tube and corresponding sides forms n group parallel light path, is describedly more than or equal to 1 integer for n;
Described detecting unit, specifically within each scan period, detects with one group of parallel light path at random or in turn.
The awakening method of the touch control terminal that the embodiment of the present invention provides and touch control terminal, under holding state, carry out single side scan with the first sweep frequency by terminal, detects and whether have effective touch; And detecting while existing, carry out full screen scanning with the second sweep frequency; Wherein, described the first sweep frequency is lower than described the second sweep frequency.Due to difference and full screen scanning, single side scan is the infrared transmitting tube transmitting infrared light being positioned on Touch Screen one side (long limit or minor face) by driving successively, and the infrared receiving tube receiving infrared-ray of its opposite side completes single pass process; Like this, when terminal is carried out low-frequency single side scan under holding state, the number of the infrared transmitting tube of sweep limit and driving is all little than full screen scanning, meanwhile, because in the time of holding state, whether terminal only need to detect touch action, and the position that does not need concrete judgement to touch, therefore the low-frequency single side scan of terminal under holding state, when realization detection touch-control occurs, by reducing sweep limit and reducing the power valve number driving, further reduce the power consumption of terminal.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of infrared type touch screen terminal of the prior art;
The awakening method schematic flow sheet of a kind of touch control terminal that Fig. 2 provides for the embodiment of the present invention;
The structural representation of a kind of infrared type touch screen terminal that Fig. 3 provides for the embodiment of the present invention;
The structured flowchart of a kind of touch control terminal that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of awakening method of touch control terminal, as shown in Figure 2, said method comprising the steps of:
201, described terminal, under holding state, is carried out single side scan with the first sweep frequency, detects and whether has effective touch.
In the time that no user operates, terminal is in holding state, and user, in the time that needs use terminal, can touch and wake terminal up, makes terminal in normal operating conditions.Therefore under holding state, as long as can judge whether to exist effective touch, wake at any time terminal up, do not need to know the concrete coordinate (concrete X, Y coordinate are determined by the full screen scanning on long and short limit respectively) that touches object.
Therefore under holding state, scan mode when terminal is worked without maintenance is normal, only need to carry out single side scan with the first sweep frequency.Wherein, the first sweep frequency lower than described terminal the sweep frequency when the normal operating conditions.
Here it should be noted that, described single side scan take a transmitting side of described terminal touch screen as reference edge, sends sweep trace from reference edge and scans.If the effective touch of existence, carries out single side scan and can only scan X or the Y coordinate of touch location, and can not determine the concrete coordinate of touch location.Example, infrared type touch screen terminal as shown in Figure 3, described terminal comprises two adjacent transmitting side, and two corresponding reception limits, in described transmitting side, being provided with infrared transmitting tube, described reception is provided with infrared receiving tube on limit, take short transmitting side as reference edge, only drive the infrared transmitting tube transmitting infrared light in short transmitting side, make the infrared receiving tube arranging on its opposite side receive described infrared light, this is just called single side scan.
202, detect and whether have effective touch.
Described terminal can be the touch screen terminals such as resistance-type, condenser type, infrared type, surface acoustic wave type, carrying out in the process of periodic single side scan, described terminal can compare to judge whether to exist effective touch by the resistance sizes in a direction or capacitance size and threshold value.
Optionally, in the time that described touch control terminal is infrared touch control terminal, whether described detection there is effective touch, specifically comprise: detect the receiving tube corresponding with the infrared transmitting tube that scans transmitting, the light signal strength receiving, touches if intensity lower than threshold value, detects to exist effectively; If, higher than threshold value, detecting, intensity there is not effective touch.
Exist effectively and touch if detect,, wake terminal up and carry out step 103, if there is not effective touch, carry out step 101.
203, carry out full screen scanning with the second sweep frequency.
In the time detecting that existence effectively touches, illustrate that user brings into use terminal, therefore described terminal just need to be carried out normal operating conditions, carries out full screen scanning with the second sweep frequency, described the second sweep frequency is exactly the sweep frequency of described terminal in the time of normal operating conditions.
Here it should be noted that, described full screen scanning take adjacent two transmitting side of described terminal touch screen as reference edge, drives successively two transmitting side to send sweep trace and scans.Touch if exist effectively, carry out full screen scanning and just can scan the X and Y coordinates of touch location, example, infrared type touch screen terminal as shown in Figure 3, described terminal comprises two adjacent transmitting side, and two corresponding reception limits, in described transmitting side, be provided with infrared transmitting tube, described reception is provided with infrared receiving tube on limit, in the time carrying out full screen scanning, can drive successively the infrared transmitting tube in infrared transmitting tube and the long transmitting side in short transmitting side to send infrared light, and receive and carry out light intensity detection by its corresponding infrared receiving tube, thereby determine the X and Y coordinates of touch location.
If described terminal is infrared type touch screen terminal, described terminal can drive successively with the second sweep frequency all infrared transmitting tube transmitting infrared lights on both sides (long limit+minor face), and is received and carried out light intensity detection by its corresponding infrared receiving tube.
Above-mentioned method is applicable to the touch screen terminals such as resistance-type, condenser type, infrared type, surface acoustic wave type, under holding state, carry out low-frequency single side scan mode, can carry out full screen scanning and judge whether there is effective touch, and by the low-frequency single side scan under holding state, reduce sweep limit, reduce sweep frequency, thereby greatly reduce the power consumption of terminal, extend the serviceable life of terminal.
Optionally, can embodiment provided by the invention be described as an example of the infrared type touch screen terminal shown in Fig. 3 example.
Infrared type touch screen terminal is normally arranged in order LED fluorescent tube in welding on four limits that touch frame at present, comprises two adjacent row's infrared transmitting tubes, and the corresponding two row's receiving tubes that arrange, and structural drawing as shown in Figure 3.
In normal operation, infrared transmitting tube is with predefined a certain scan mode, as 1 infrared transmitting tube is opened, N(N>=1) individual receiving tube receives this infrared transmitting tube signal, in the t moment, when infrared transmitting tube i opens, suppose to receive limit and have three lamp i, i+j, i-j(is j>=1 wherein) receive simultaneously, in direction 1, 2, 3 all form a light path, light so successively all emission lamps of transmitting side (long limit+minor face), just can form a light net being formed by a large amount of light paths, be used for detecting the concrete coordinate position of touch objects.The long limit of touch-screen and minor face scanning one circle represent that a scan period completes.
Therefore, in method step 101 provided by the invention, describedly carry out single side scan with the first sweep frequency and be, drive the infrared transmitting tube transmitting infrared light arranging on arbitrary limit with the first sweep frequency; The infrared receiving tube arranging on the opposite side on described arbitrary limit receives described infrared light.
Optionally, in the time carrying out single side scan, described terminal drives the infrared transmitting tube transmitting infrared light arranging on arbitrary limit with the first sweep frequency, comprising: with at least one the infrared transmitting tube transmitting infrared light in arbitrary limit described in described the first sweep frequency random drive.Certainly, this launches infrared light comprising an infrared transmitting tube in the described arbitrary limit of driving, or, drive all infrared transmitting tubes transmitting infrared lights in described arbitrary limit.On single side scan basis, in each scan period, drive this part (rather than all) infrared tube transmitting infrared light in monolateral, and the infrared tube driving in each scan period is not identical, the region that is each scan period scanning changes, in can the scope of acceptable response, eventually can in a certain scanning area, scan touch action, the effectively generation of inspection touch action, and compared with driving monolateral power valve, drive part infrared tube has further reduced the power valve number of sweep limit and driving, thereby further reduces power consumption of terminal.
Optionally, can also adopt the method for interval scan.Now, described terminal drives the infrared transmitting tube transmitting infrared light arranging on arbitrary limit with the first sweep frequency, specifically comprise: with at least 2 infrared transmitting tubes transmitting infrared lights in arbitrary limit described in described the first sweep frequency random drive, and one, interval infrared transmitting tube at least between described at least 2 infrared transmitting tubes.Preferably, in the infrared transmitting tube on described arbitrary limit, to be divided into one group at interval of the infrared transmitting tube of fixed number,, the described infrared transmitting tube transmitting infrared light arranging on arbitrary limit that drives with the first sweep frequency, specifically comprises: drive the one group of infrared transmitting tube transmitting infrared light arranging on arbitrary limit with described the first sweep frequency.
Example, can be by the infrared transmitting tube on described arbitrary limit, be divided into one group at interval of the infrared transmitting tube of M-1 infrared transmitting tube, be divided into into M group infrared transmitting tube, as shown in Figure 3, be divided into one group at interval of M-1, the 1st, M+1, 2M+1, 3M+1 infrared transmitting tube is one group, the 2nd, M+2, 2M+2, 3M+2 infrared transmitting tube is one group, the 3rd, M+3, 2M+3, 3M+3 infrared transmitting tube is one group, the 4th, M+4, 2M+4 infrared transmitting tube is one group, remaining the like.
Optionally, suppose that the normal scan frequency on described arbitrary limit is 1/T, within the T period, terminal can drive all infrared transmitting tube transmitting infrared lights on described arbitrary limit successively, the present invention is divided into infrared transmitting tube M group according to the method described above, therefore can carry out M monolateral interval scan in the present invention within the T period:
The 1st time: with the 1st group of infrared transmitting tube transmitting infrared light scanning line in the infrared transmitting tube on the first described arbitrary limit of sweep frequency driving, example, first group is the 1st, M+1 is individual, 2M+1 is individual, a 3M+1 infrared transmitting tube.
The 2nd time: with the 2nd group of infrared transmitting tube transmitting infrared light scanning line in the infrared transmitting tube on the first described arbitrary limit of sweep frequency driving, example, first group is the 2nd, M+2 is individual, 2M+2 is individual, a 3M+2 infrared transmitting tube.
……
The k time: with the k group infrared transmitting tube transmitting infrared light scanning line in the infrared transmitting tube on the first described arbitrary limit of sweep frequency driving; Example, k group is k, M+k is individual, 2M+k is individual, a 3M+k infrared transmitting tube.Wherein, described M is more than or equal to 1, described k=2 ..., M.
When next T period, still drive scanning according to above-mentioned since first group.
Suppose M=1, in this one side infrared transmitting tube, total M+1=2 group (being designated as A group and B group) infrared transmitting tube, in the time carrying out single side scan, can first drive A group infrared transmitting tube with the first sweep frequency, then drive B group infrared transmitting tube with the first sweep frequency, then still drive A group infrared transmitting tube with the first sweep frequency, drive B group infrared transmitting tube with the first sweep frequency again, so circulation drives.
The first frequency of above-described interval scan is M times of the normal scan frequency on described arbitrary limit, can be shortened to like this to the 1/M in the normal scan cycle on whole piece limit the scan period, and interval scan can extend the life-span of infrared transmitting tube and touch-screen.
Optionally, in infrared type touch screen terminal, on described arbitrary limit any infrared transmitting tube on described opposite side to there being n infrared receiving tube, on described arbitrary limit, the infrared receiving tube of all infrared transmitting tube and corresponding sides forms n group parallel light path, is describedly more than or equal to 1 integer for n.After single side scan or full screen scanning complete, in program, need optical path signal to process, the processing mode that we take is only to judge one group of signal intensity in parallel direction at every turn, select at random or sequentially one group of parallel light path to detect, represent that in turn the t1 moment only judges that the optical path signal of direction 1 changes for the first time, the t2 moment judges that the optical path signal of direction 2 changes for the second time, and the t3 moment judges that the optical path signal of direction 3 changes for the third time.For the light signal in one group of parallel direction, the light signal strength that can detect according to its corresponding receiving tube, compares with predefined threshold value, when light signal strength is during lower than threshold value, illustrates and touches effectively, now wakes in real time terminal device up.This method can shorten the routine processes time greatly.
The said method that the embodiment of the present invention provides can be applied in large-sized infrared type touch screen terminal well.
The embodiment of the present invention also provides a kind of touch control terminal, and as shown in Figure 4, described touch control terminal comprises: detecting unit 401 and scanning element 402.
Detecting unit 401, under holding state, carries out single side scan with the first sweep frequency, detects and whether has effective touch.
Optionally, described terminal is infrared touch control terminal, the arbitrary neighborhood both sides of its touch screen are provided with infrared transmitting tube, another both sides are provided with infrared receiving tube,, described detecting unit 401, specifically for drive the infrared transmitting tube transmitting infrared light arranging on arbitrary limit with the first sweep frequency, the infrared receiving tube arranging on the opposite side on described arbitrary limit receives described infrared light.
Optionally, described detecting unit 401, specifically at least one the infrared transmitting tube transmitting infrared light with in arbitrary limit described in described the first sweep frequency random drive.
Optionally, described detecting unit 401, specifically at least 2 infrared transmitting tubes transmitting infrared lights with in arbitrary limit described in described the first sweep frequency random drive, and one, interval infrared transmitting tube at least between described at least 2 infrared transmitting tubes.
Optionally, in the infrared transmitting tube on described arbitrary limit, will be divided into one group at interval of the infrared transmitting tube of fixed number,, described detecting unit 401, specifically for driving the one group of infrared transmitting tube transmitting infrared light arranging on arbitrary limit with described the first sweep frequency.
Described detecting unit 401, also specifically for detecting the receiving tube corresponding with the infrared transmitting tube that scans transmitting, the signal intensity receiving, touches if intensity lower than threshold value, detects to exist effectively; If, higher than threshold value, detecting, intensity there is not effective touch.
On described arbitrary limit, any infrared transmitting tube is to there being n infrared receiving tube on described opposite side, and on described arbitrary limit, the infrared receiving tube of all infrared transmitting tube and corresponding sides forms n group parallel light path; Described n is more than or equal to 1 integer.Described detecting unit 401, specifically within each scan period, detects with one group of parallel light path at random or in turn.
Optionally, described scanning element 402, specifically for driving successively each infrared transmitting tube transmitting infrared light in described terminal with the second sweep frequency.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of programmed instruction, aforesaid program can be stored in a computer read/write memory medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. an awakening method for touch control terminal, is characterized in that, comprising:
Described terminal, under holding state, is carried out single side scan with the first sweep frequency, detects and whether has effective touch;
If exist, carry out full screen scanning with the second sweep frequency;
Wherein, described the first sweep frequency is lower than described the second sweep frequency.
2. method according to claim 1, is characterized in that, the arbitrary neighborhood both sides of the touch screen of described terminal are provided with infrared transmitting tube, and another both sides are provided with infrared receiving tube, describedly carries out single side scan with the first sweep frequency, comprising:
Drive the infrared transmitting tube transmitting infrared light arranging on arbitrary limit with the first sweep frequency;
The infrared receiving tube arranging on the opposite side on described arbitrary limit receives described infrared light.
3. method according to claim 2, is characterized in that, the described infrared transmitting tube transmitting infrared light arranging on arbitrary limit that drives with the first sweep frequency, specifically comprises:
With at least one the infrared transmitting tube transmitting infrared light in arbitrary limit described in described the first sweep frequency random drive.
4. method according to claim 2, is characterized in that, the described infrared transmitting tube transmitting infrared light arranging on arbitrary limit that drives with the first sweep frequency, specifically comprises:
With at least 2 infrared transmitting tubes transmitting infrared lights in arbitrary limit described in described the first sweep frequency random drive, and one, interval infrared transmitting tube at least between described at least 2 infrared transmitting tubes.
5. method according to claim 4, is characterized in that, in the infrared transmitting tube on described arbitrary limit, will be divided into one group at interval of the infrared transmitting tube of fixed number,,
The described infrared transmitting tube transmitting infrared light arranging on arbitrary limit that drives with the first sweep frequency, specifically comprises: drive the one group of infrared transmitting tube transmitting infrared light arranging on arbitrary limit with described the first sweep frequency.
6. according to the method described in claim 2-5 any one, it is characterized in that, on described arbitrary limit any infrared transmitting tube on described opposite side to there being n infrared receiving tube, on described arbitrary limit, the infrared receiving tube of all infrared transmitting tube and corresponding sides forms n group parallel light path, and described n is more than or equal to 1 integer;
Whether described detection exists effective touch to be:
In each scan period, detect with one group of parallel light path at random or in turn.
7. a touch control terminal, is characterized in that, comprising:
Detecting unit, under holding state, carries out single side scan with the first sweep frequency, detects and whether has effective touch;
Scanning element, while there is effectively touch, carries out full screen scanning with the second sweep frequency for detecting at described detecting unit; Wherein, described the first sweep frequency is lower than described the second sweep frequency.
8. touch control terminal according to claim 7, is characterized in that, the arbitrary neighborhood both sides of the touch screen of described terminal are provided with infrared transmitting tube, and another both sides are provided with infrared receiving tube,,
Described detecting unit, specifically at least one the infrared transmitting tube transmitting infrared light with in arbitrary limit described in described the first sweep frequency random drive; Or,
With at least 2 infrared transmitting tubes transmitting infrared lights in arbitrary limit described in described the first sweep frequency random drive, and one, interval infrared transmitting tube at least between described at least 2 infrared transmitting tubes.
9. touch control terminal according to claim 8, is characterized in that, in the infrared transmitting tube on described arbitrary limit, will be divided into one group at interval of the infrared transmitting tube of fixed number,,
Described detecting unit, specifically for driving the one group of infrared transmitting tube transmitting infrared light arranging on arbitrary limit with described the first sweep frequency.
10. the touch control terminal described according to Claim 8-9 any one, it is characterized in that, on described arbitrary limit, any infrared transmitting tube is to there being n infrared receiving tube on described opposite side, and on described arbitrary limit, the infrared receiving tube of all infrared transmitting tube and corresponding sides forms n group parallel light path; Described n is more than or equal to 1 integer;
Described detecting unit, specifically within each scan period, detects with one group of parallel light path at random or in turn.
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Effective date of registration: 20180531 Address after: 266510 No. 218, Qian Wan Gang Road, Huangdao District, Qingdao, Shandong. Patentee after: Qingdao Hisense commercial display Limited by Share Ltd Address before: 266555 No. 218, Qian Wan Gang Road, Qingdao economic and Technological Development Zone, Shandong Patentee before: Qingdao Hisense Electric Co., Ltd. |