CN104010208B - A kind of LCD TV with infrared positioning function and its infrared positioning method - Google Patents
A kind of LCD TV with infrared positioning function and its infrared positioning method Download PDFInfo
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- CN104010208B CN104010208B CN201410164867.0A CN201410164867A CN104010208B CN 104010208 B CN104010208 B CN 104010208B CN 201410164867 A CN201410164867 A CN 201410164867A CN 104010208 B CN104010208 B CN 104010208B
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Abstract
The invention discloses a kind of LCD TV with infrared positioning function and its infrared positioning method, including step：Each the infrared photo-sensitive cell being arranged on liquid crystal display platen edge by horizontal/vertical carries out current detecting respectively to the infrared source signal projecting in LCDs, and the electric current that those infrared photo-sensitive cells are detected is counted correspondingly；The size of current that in comparison level/vertical direction, each infrared photo-sensitive cell detects, and determine the infrared photo-sensitive cell of horizontal/vertical electric current maximum is detected；Calculate the distance maximum infrared photo-sensitive cell of horizontal/vertical of electric current is detected to initial point, and generate corresponding position coordinateses；This position coordinates is fed back to the processor of LCDs, the projected position of this infrared light supply is shown by light target form by processor on LCDs；Make LCD TV possess infrared positioning function, enhance the functional effect of interaction entertainment between user and TV.
Description
Technical field
The present invention relates to liquid crystal display manufactures field, more particularly, to a kind of LCD TV with infrared positioning function
And its infrared positioning method.
Background technology
At present, there is the location technology much leaving LCD screen certain distance on the market, that is, user is from liquid crystal display screen
In the range of curtain certain distance, the content on LCD screen is carried out every empty control, similar to every cut-in without ball fruit such game behaviour
Make, but not only cost cannot control such New Product, and structure is complex, corresponding effect is also simultaneously simultaneously
Not as people's will.It may be said that for LCD screen senses this field, technique is also close to the stage of ground zero exploitation,
Still need further development space.
Therefore, prior art has yet to be improved and developed.
Content of the invention
In view of above-mentioned the deficiencies in the prior art, the present invention provides a kind of has the LCD TV of infrared positioning function and its red
Outside fix method is it is intended to solve the development cost with regard to this technology, baroque problem.
The technical scheme being adopted is as follows：
A kind of infrared positioning method for LCDs, including step：
Each the infrared photo-sensitive cell being arranged on liquid crystal display platen edge by horizontal/vertical is respectively to projecting to liquid crystal
Infrared source signal on display screen carries out current detecting, and the electric current that those infrared photo-sensitive cells are detected is carried out one a pair
The statistics answered；
The size of current that in comparison level/vertical direction, each infrared photo-sensitive cell detects, and determine and electric current is detected
The maximum infrared photo-sensitive cell of horizontal/vertical；
Calculate the distance maximum infrared photo-sensitive cell of horizontal/vertical of electric current is detected to initial point, and generate corresponding position
Put coordinate；
This position coordinates is fed back to the processor of LCDs, light target form is passed through in liquid crystal display by processor
Screen display goes out the projected position of this infrared light supply.
The described infrared positioning method for LCDs, wherein, in described comparison level/vertical direction, each is red
The size of current that outer photo-sensitive cell detects, and determine the step maximum infrared photo-sensitive cell of horizontal/vertical of electric current is detected
It is specially：
The electric current that each infrared photo-sensitive cell in horizontal is detected amplifies through amplifier and to change into voltage defeated
Go out；
The voltage parameter of voltage output is carried out analog digital conversion and generates binary number, and the binary number after conversion is carried out
Temporary；
Temporary binary number is formed horizontal/vertical array, and by judging to compare to find out in horizontal/vertical array
Maximum, so that it is determined that go out to detect the maximum infrared photo-sensitive cell of horizontal/vertical of electric current.
The described infrared positioning method for LCDs, wherein, described calculating detect the maximum level of electric current/
Vertically infrared photo-sensitive cell is to the distance of initial point, and generates the step of corresponding position coordinateses and be specially：
Calculate the distance maximum infrared photo-sensitive cell of level of electric current is detected to initial point, to determine this infrared light supply in liquid
X on crystal display screen is to coordinate figure, and is expressed as Xm；
Calculate the distance maximum vertically infrared photo-sensitive cell of electric current is detected to initial point, to determine this infrared light supply in liquid
Y-direction coordinate figure on crystal display screen, and it is expressed as Yn；
Xm and Yn calculating is generated corresponding position coordinateses（Xm, Yn）,
Wherein, m represents the infrared photo-sensitive cell of which level in horizontal direction, n represent in vertical direction which
Vertically infrared photo-sensitive cell.
The described infrared positioning method for LCDs, wherein, described horizontal/vertical electric current maximum is detected
Infrared photo-sensitive cell is respectively to initial point apart from computing formula：
Xm=D × m,
Yn=D × n,
Wherein, D represents the spacing distance between the infrared photo-sensitive cell of adjacent horizontal/vertical.
The described infrared positioning method for LCDs, wherein, when only horizontally or vertically on a direction
When infrared photo-sensitive cell detects the electric current of infrared light supply, then judge this infrared light supply as invalid position signalling.
A kind of LCD TV with infrared positioning function, including：
Infrared detection module, fingerprint identification module, for each the infrared photosensitive unit being arranged on liquid crystal display platen edge by horizontal/vertical
Part carries out current detecting to the infrared source signal projecting in LCDs respectively, and to those infrared photo-sensitive cell detections
To electric current counted correspondingly；
Position computing module, the size of current detecting for each infrared photo-sensitive cell in comparison level/vertical direction,
And determine the infrared photo-sensitive cell of horizontal/vertical electric current maximum is detected；It is additionally operable to calculate the maximum level of electric current that detects/hang down
Directly infrared photo-sensitive cell is to the distance of initial point, and generates corresponding position coordinateses；
Processor, the position coordinateses for generating position computing module feed back to LCDs and carry out inter-process,
And the projected position of this infrared light supply is shown by light target form on LCDs.
The described LCD TV with infrared positioning function, wherein, described infrared detection module, fingerprint identification module is swept for an infrared receiver
Retouch sensor, described infrared receiver scanning sensor includes：
It is horizontally set on the first infrared receiving tube of LCDs upper side edge or lower side, and be vertically set on liquid crystal
Display screen left side or the second infrared receiving tube of right edge, described infrared photo-sensitive cell is evenly spaced to be arranged on described first
On infrared receiving tube and the second infrared receiving tube.
The described LCD TV with infrared positioning function, wherein, described position computing module is an arithmetical unit, described
Also include in arithmetical unit the maximum infrared photo-sensitive cell of horizontal/vertical of electric current is detected to initial point apart from computing formula：
Xm=D × m,
Yn=D × n,
Wherein, Xm represents the distance maximum infrared photo-sensitive cell of level of electric current is detected to initial point, and Yn represents and detects
To the distance of initial point, m represents the infrared photosensitive unit of which level in horizontal direction to the maximum vertically infrared photo-sensitive cell of electric current
Part, n represents which the vertically infrared photo-sensitive cell in vertical direction, D represent the infrared photo-sensitive cell of adjacent horizontal/vertical it
Between spacing distance.
The described LCD TV with infrared positioning function, wherein, described processor is a TV chip.
The described LCD TV with infrared positioning function, wherein, the viewing area of described LCDs is provided with one
Infrared filtering diaphragm, is used for filtering visible ray；
It is provided with metal edge frame outside described liquid crystal display platen edge, be used for preventing infrared light supply position from overflowing liquid crystal display
Screen is outer.
Beneficial effects of the present invention：
Compared with prior art, the present invention provides a kind of LCD TV with infrared positioning function and its infrared positioning
Method, makes LCD TV possess the function of infrared positioning, and user can be carried out by launching the TV remote controller of infrared light supply
Cut fruit, aircraft class etc. needs the game of direction positioning, enhances the functional effect of interaction entertainment between user and TV.Not only
So, the technology used in the present invention principle is succinctly easily realized, simultaneously low cost.
Brief description
Fig. 1 is the flowchart of the infrared positioning method embodiment one that the present invention is used for LCDs；
Fig. 2 is the concrete steps flow chart of S200 in Fig. 1；
Fig. 3 is the concrete steps flow chart of S300 in Fig. 1；
Fig. 4 is the logical flow chart of the infrared positioning method embodiment two that the present invention is used for LCDs；
Fig. 5 is the module frame chart of the LCD TV that the present invention has infrared positioning function；
Fig. 6 is the structural representation of the LCD TV mid-infrared receiver module that the present invention has infrared positioning function；
Fig. 7 is the principle schematic of the LCD TV mid-infrared receiver module that the present invention has infrared positioning function；
Fig. 8 is the structural representation of the specific embodiment of the LCD TV that the present invention has infrared positioning function；
Fig. 9 be the present invention have in the LCD TV of infrared positioning function prevent infrared light supply position overflow telescreen
The structural representation of corrective measure.
Specific embodiment
The invention provides a kind of infrared positioning method for LCDs and LCD TV, for making the mesh of the present invention
, technical scheme and advantage clearer, clear and definite, the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.
It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment one：
Refer to Fig. 1, Fig. 1 be the infrared positioning method embodiment one that the present invention is used for LCDs realize flow process
Figure.
As shown in figure 1, the described infrared positioning method for LCDs, it includes step：
Step S100, each the infrared photo-sensitive cell being arranged on liquid crystal display platen edge by horizontal/vertical is right respectively
Project to the infrared source signal in LCDs and carry out current detecting, and the electric current that those infrared photo-sensitive cells are detected
Counted correspondingly.
Wherein, the current data being collected in horizontal direction and in vertical direction is each independent, and exists accordingly
When subsequently carrying out size of current and comparing, it is also will be in horizontal direction and completely separated in vertical direction.
In the present embodiment, before step S100, also should include user red to the viewing area transmitting in LCDs
The operating procedure of outer light source, specially：
User hand-holdable similar to common TV remote control one spline structure but specific infrared light sources can be sent
Infrared transmitter, preferably faces LCDs, and sends infrared light supply to LCDs, and this infrared light supply is to use
In the position pointed by user, i.e. positioning action are determined on LCDs, infrared positioning function is realized with this.
After treating that step S100 completes, enter step S200.
Step S200, the size of current that in comparison level/vertical direction, each infrared photo-sensitive cell detects, and determine inspection
Measure the maximum infrared photo-sensitive cell of horizontal/vertical of electric current.
In conjunction with shown in Fig. 2, Fig. 2 is the concrete steps flow chart of S200 in Fig. 1, and described step S200 specifically includes：
Step S210, the electric current that each infrared photo-sensitive cell in horizontal is detected amplifies through amplifier and turns
Formation voltage exports；
Step S220, the voltage parameter of voltage output is carried out analog digital conversion and generates binary number, and to two after conversion
System number is kept in；
Step S230, temporary binary number is formed horizontal/vertical array, and compares the level of finding out/vertical by judgement
Maximum in straight array, so that it is determined that go out to detect the maximum infrared photo-sensitive cell of horizontal/vertical of electric current.
Above-mentioned steps S210, S220 and S230 are to adopt each photo-sensitive cell in horizontal in step S100
The current value collecting is processed, thus determine the maximum infrared photo-sensitive cell of horizontal/vertical of electric current is detected.And will record
Current value by a series of data conversion formed array, be for adapt to single-chip microcomputer application, facilitate single-chip microcomputer to carry out correlation
The process of data（Single-chip microcomputer identification voice is binary number）, this is calculated by single-chip microcomputer and the maximum water of electric current is detected
Flat/vertical infrared photo-sensitive cell.
Further, enter step S300.
Step S300, calculates the distance maximum infrared photo-sensitive cell of horizontal/vertical of electric current is detected to initial point, and generates
Corresponding position coordinateses.
In conjunction with shown in Fig. 3, Fig. 3 is the concrete steps flow chart of S300 in Fig. 1, and described step S300 specifically includes：
Step S310, calculates the distance maximum infrared photo-sensitive cell of level of electric current is detected to initial point, red to determine this
X in LCDs for the outer light source is to coordinate figure, and is expressed as Xm；
Step S320, calculates the distance maximum vertically infrared photo-sensitive cell of electric current is detected to initial point, red to determine this
Y-direction coordinate figure in LCDs for the outer light source, and it is expressed as Yn；
Step S330, Xm and Yn calculating is generated corresponding position coordinateses（Xm, Yn）,
Wherein, m represents the infrared photo-sensitive cell of which level in horizontal direction, n represent in vertical direction which
Vertically infrared photo-sensitive cell.
Further, in described step 300, the maximum infrared photo-sensitive cell of horizontal/vertical of electric current is detected to initial point
It is respectively apart from computing formula：
Xm=D × m,
Yn=D × n,
Wherein, D represents the spacing distance between the infrared photo-sensitive cell of adjacent horizontal/vertical.
Taking in horizontal direction, determine infrared light supply X to coordinate figure as a example, the principle of the present embodiment is further described, tool
Body is as follows：
When effective infrared light supply side before screen, the infrared photo-sensitive cell of evenly distributed x1 to xm in horizontal direction
（As infrared diode or audion, the present embodiment preferably silicon light sensitive diode）It is respectively received the light of this infrared light supply, but
It is because infrared photo-sensitive cell is different from the distance of infrared light supply, so that what the infrared photo-sensitive cell of x1 to xm detected electricity
Intensity of flow is all different, from light source more close to generation electric current bigger, according to geometrical principle, put the beeline of line, that is, this point hang down
Directly when this line.
So thus it is ensured that when the electric current that detects of hot outer photo-sensitive cell xm is maximum, then this is infrared photosensitive
Element xm location is the vertical point perpendicular to X-axis for this infrared light supply, according to geometric coordinate system principle, this infrared photosensitive unit
The distance of part xm to initial point is the X of infrared light supply to coordinate figure Xm.Therefore, by above-mentioned Xm=D × m computing formula
The X going out infrared light supply is to coordinate figure.
The Y-direction coordinate figure Yn of infrared light supply can draw in the same manner.
After determining the position coordinateses of infrared light supply in step S300, enter step S400.
Step S400, this position coordinates is fed back to the processor of LCDs, passes through light target form by processor
The projected position of this infrared light supply is shown on LCDs.
Embodiment two：
Refer to Fig. 4, Fig. 4 is the logic flow of the infrared positioning method embodiment two that the present invention is used for LCDs
Figure, further explains to the present invention in conjunction with specific embodiments：
As shown in figure 4, the method embodiment includes：
Step a, TV is opened and is in position signalling state to be received, enters step b afterwards；
Step b, has infrared light supply before TV, enter step c or step f afterwards；
Step c, when infrared light supply is in telescreen dead ahead, enters step d afterwards；
Step d, horizontal and vertical light sensation receives and all provides range coordinate（Xm, Yn）, enter step e afterwards；
Step e, TV chip receiving position signal simultaneously processes and shows corresponding action on screen, that is, complete；
Produce another branching step f in stepb；
Step f, when infrared light supply is in telescreen side, enters step g afterwards；
Step g, horizontally or vertically monolateral provide Xm or Yn, afterwards enter step h；
Step h, invalid position signalling, again return to step b.
Turn in step a TV and have infrared light supply before having step b TV in the state of being in receiving position signal, at this moment
It is divided into two kinds of situations, situation one：Step c when the dead ahead in telescreen for the infrared light supply, the at this moment horizontal and vertical biography of step d
Sensor all sends position coordinateses（Xm, Yn）, continuous and step e TV chip makes corresponding display according to position signalling；Situation two：
In screen side, step g horizontally or vertically unilaterally provides Xm or Yn position signalling to step f infrared light supply, and TV chip judges
For the invalid positional information of step h, rejudge.
That is, when only horizontally or vertically the infrared photo-sensitive cell on a direction electric current of infrared light supply is detected
During intensity, then judge this infrared light supply as invalid position signalling.
Based on above-mentioned embodiment of the method, the present invention also provides a kind of LCD TV with infrared positioning function,
Refer to Fig. 5, Fig. 5 is the module frame chart of the LCD TV that the present invention has infrared positioning function.
As shown in figure 5, described LCD TV, it includes：
Infrared detection module, fingerprint identification module 510, for be arranged on liquid crystal display platen edge by horizontal/vertical each is infrared photosensitive
Element carries out current detecting to the infrared source signal projecting in LCDs respectively, and to those infrared photo-sensitive cell inspections
The electric current measuring is counted correspondingly, specifically as described in above-mentioned steps S100.
In conjunction with shown in Fig. 6, Fig. 6 is the structure of the LCD TV mid-infrared receiver module that the present invention has infrared positioning function
Schematic diagram, described infrared detection module, fingerprint identification module 510 is an infrared receiver scanning sensor, and it includes：
It is horizontally set on the first infrared receiving tube 511 of LCDs upper side edge or lower side, and be vertically set on
LCDs left side or the second infrared receiving tube 512 of right edge, described infrared photo-sensitive cell（The i.e. infrared photosensitive unit of level
Part 600a and vertically infrared photo-sensitive cell 600b）It is evenly spaced that to be arranged on described first infrared receiving tube 511 and second infrared
In reception pipe 512（And the particular number of infrared photo-sensitive cell is determined by the size of display screen）.
In conjunction with shown in Fig. 7, Fig. 7 is the principle of the LCD TV mid-infrared receiver module that the present invention has infrared positioning function
Schematic diagram, x1～xm represents the infrared photo-sensitive cell of level in horizontal direction, and y1～yn represents that the level in vertical direction is infrared
Photo-sensitive cell,（Xm, Yn）Represent that infrared light supply projects to the position coordinateses on screen, D represents the infrared sense of adjacent horizontal/vertical
Spacing distance between optical element, L1 ~ Lm represents the distance of infrared light supply infrared photo-sensitive cell of each level to horizontal direction,
L1～Ln represents the distance of infrared light supply each vertical infrared photo-sensitive cell to vertical direction, and each infrared photo-sensitive cell is to red
The distance of outer light source is different, and the current intensity thus detecting is then different.
Position computing module 520, for the electricity detecting for each infrared photo-sensitive cell in comparison level/vertical direction
Stream size, and determine the infrared photo-sensitive cell of horizontal/vertical electric current maximum is detected；It is additionally operable to calculate and electric current maximum is detected
The infrared photo-sensitive cell of horizontal/vertical is to the distance of initial point, and generates corresponding position coordinateses, concrete such as above-mentioned steps S200 and step
Described in rapid S300.
Wherein, described position computing module 520 is an arithmetical unit（I.e. single-chip microcomputer）, also include in this arithmetical unit electricity is detected
The maximum infrared photo-sensitive cell of horizontal/vertical of stream is to initial point apart from computing formula：
Xm=D × m,
Yn=D × n,
Wherein, Xm represents the distance maximum infrared photo-sensitive cell of level of electric current is detected to initial point, and Yn represents and detects
To the distance of initial point, m represents the infrared photosensitive unit of which level in horizontal direction to the maximum vertically infrared photo-sensitive cell of electric current
Part, n represents which the vertically infrared photo-sensitive cell in vertical direction, D represent the infrared photo-sensitive cell of adjacent horizontal/vertical it
Between spacing distance.
Processor 530, the position coordinateses for generating position computing module feed back to LCDs to be carried out inside
Reason, and the projected position of this infrared light supply is shown by light target form on LCDs, concrete such as above-mentioned steps 400
Described.
Wherein, described processor 530 is a TV chip, and accordingly, arithmetical unit can be integrated on this TV chip.
Refer to Fig. 8, Fig. 8 is the structural representation of the specific embodiment of the LCD TV that the present invention has infrared positioning function
Figure.
As shown in figure 8, this LCD TV includes TV body 700, and it is arranged on infrared on TV body 700 side
Receive scanning sensor 710, this infrared receiver scanning sensor 710 is provided with silicon light sensitive diode（Photosensitive including horizontal silicon
Diode 711a and vertical silicon light sensitive diode 711b）, it is internally provided with arithmetical unit and processor in TV body 700（In figure
Not shown）.
Determine the position signalling of infrared light supply by infrared photo-sensitive cell, and by calculating infrared light supply in television screen
Curtain location of projection coordinate, tv processor is shown dynamic done by this infrared light supply on screen by light target form
Make.
The present invention can support that client is played with remote control on TV and cut fruit, aircraft class etc. needs the trip of direction positioning
Play, considerably increases the Interactive Experience of user.
As shown in figure 9, Fig. 9 is the present invention have in the LCD TV of infrared positioning function prevent infrared light supply position overflow
The structural representation of the corrective measure of telescreen, when infrared light supply not dead ahead in screen, in order to prevent the feelings judged by accident
Condition occurs, and arranges metal edge frame 800 outside the edge of TV, and this metal edge frame 800 selects impermeable infrared metal material, uses
Overflow outside LCDs in preventing infrared light supply position.When outside infrared light supply being in screen, in horizontal or vertical direction
By numerical value, another one is not received by numerical value, and such TV chip is just in infrared receiver scanning sensor 710 only one of which direction
Can be determined that as invalid position signalling.
Further, the viewing area in LCDs is provided with an infrared filtering diaphragm 900, is used for filtering visible ray,
The infrared light of infrared light supply about 940nm is only allowed to pass through.
In the present embodiment, infrared photo-sensitive cell is preferably silicon light sensitive diode, and its peak value of response is about at 80～100 μm, right
Wavelength is that the Infrared of 940nm is most sensitive, so infrared emission light source is also adopted by the infrared light supply of 940nm.
In sum, a kind of LCD TV with infrared positioning function provided by the present invention and its infrared positioning side
Method, makes LCD TV possess the function of infrared positioning, and user can be cut by launching the TV remote controller of infrared light supply
Fruit, aircraft class etc. need the game of direction positioning, enhance the functional effect of interaction entertainment between user and TV.Not only such as
This, the technology used in the present invention principle is succinctly easily realized, simultaneously low cost.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved according to the above description or to convert, all these modifications and variations all should belong to the guarantor of claims of the present invention
Shield scope.
Claims (7)
1. a kind of infrared positioning method for LCDs is it is characterised in that include step：
By horizontal and vertical each infrared photo-sensitive cell being arranged on liquid crystal display platen edge respectively to projecting to liquid crystal
Infrared source signal in display screen carries out current detecting, and the electric current that those infrared photo-sensitive cells are detected corresponds
Statistics；
The size of current that on comparison level and vertical direction, each infrared photo-sensitive cell detects, and determine that electric current is detected maximum
Horizontal and vertical infrared photo-sensitive cell；
Calculate the distance maximum horizontal and vertical infrared photo-sensitive cell of electric current is detected to initial point, and generate corresponding position and sit
Mark；
This position coordinates is fed back to the processor of LCDs, light target form is passed through in LCDs by processor
Show the projected position of this infrared light supply；
Described calculating detects the maximum horizontal and vertical infrared photo-sensitive cell of electric current to the distance of initial point, and generates corresponding position
The step putting coordinate is specially：
Calculate the distance maximum infrared photo-sensitive cell of level of electric current is detected to initial point, to determine this infrared light supply in liquid crystal
X in display screen is to coordinate figure, and is expressed as Xm；
Calculate the distance maximum vertically infrared photo-sensitive cell of electric current is detected to initial point, to determine this infrared light supply in liquid crystal
Y-direction coordinate figure in display screen, and it is expressed as Yn；
Xm and Yn calculating is generated corresponding position coordinateses（Xm, Yn）,
Wherein, m represents the infrared photo-sensitive cell of which level in horizontal direction, and n represents which in vertical direction is vertical
Infrared photo-sensitive cell；
The described maximum horizontal and vertical infrared photo-sensitive cell of electric current that detects is respectively to initial point apart from computing formula：
Xm=D × m,
Yn=D × n,
Wherein, D represents the spacing distance between adjacent horizontal and vertical infrared photo-sensitive cell.
2. the infrared positioning method for LCDs according to claim 1 is it is characterised in that described comparison level
The size of current detecting with each infrared photo-sensitive cell in vertical direction, and determine and maximum horizontal and vertical of electric current is detected
The step of infrared photo-sensitive cell is specially：
Both horizontally and vertically gone up the electric current that each infrared photo-sensitive cell detects to amplify through amplifier and change into voltage output；
The voltage parameter of voltage output is carried out analog digital conversion and generates binary number, and the binary number after conversion is carried out temporarily
Deposit；
Temporary binary number is formed horizontal and vertical array, and by judging to compare to find out in horizontal and vertical array
Big value, so that it is determined that go out to detect the maximum horizontal and vertical infrared photo-sensitive cell of electric current.
3. the infrared positioning method for LCDs according to claim 1 it is characterised in that ought only level or
When infrared photo-sensitive cell on a vertical direction detects the electric current of infrared light supply, then judge this infrared light supply as invalid position
Confidence number.
4. a kind of LCD TV with infrared positioning function is it is characterised in that include：
Infrared detection module, fingerprint identification module, for being divided by horizontal and vertical each infrared photo-sensitive cell being arranged on liquid crystal display platen edge
Other the infrared source signal projecting in LCDs is carried out with current detecting, and those infrared photo-sensitive cells are detected
Electric current is counted correspondingly；
Position computing module, the size of current detecting for each infrared photo-sensitive cell on comparison level and vertical direction, and
Determine and the maximum horizontal and vertical infrared photo-sensitive cell of electric current is detected；It is additionally operable to calculate and the maximum level of electric current is detected and hang down
Directly infrared photo-sensitive cell is to the distance of initial point, and generates corresponding position coordinateses；
Processor, the position coordinateses for generating position computing module feed back to LCDs and carry out inter-process, and lead to
Cross the projected position that light target form shows this infrared light supply in LCDs；
Described position computing module is an arithmetical unit, also includes the horizontal and vertical red of electric current maximum is detected in described arithmetical unit
Outer photo-sensitive cell is to initial point apart from computing formula：
Xm=D × m,
Yn=D × n,
Wherein, Xm represents the distance maximum infrared photo-sensitive cell of level of electric current is detected to initial point, and Yn represents and electric current is detected
To the distance of initial point, m represents the infrared photo-sensitive cell of which level in horizontal direction, n to maximum vertically infrared photo-sensitive cell
Represented which the vertically infrared photo-sensitive cell in vertical direction, D represents between adjacent horizontal and vertical infrared photo-sensitive cell
Spacing distance.
5. the LCD TV with infrared positioning function according to claim 4 is it is characterised in that described infrared detection mould
Block is an infrared receiver scanning sensor, and described infrared receiver scanning sensor includes：
It is horizontally set on the first infrared receiving tube of LCDs upper side edge or lower side, and be vertically set on liquid crystal display
Screen left side or the second infrared receiving tube of right edge, described infrared photo-sensitive cell is evenly spaced, and to be arranged on described first infrared
In reception pipe and the second infrared receiving tube.
6. the LCD TV with infrared positioning function according to claim 4 is it is characterised in that described processor is one
TV chip.
7. the LCD TV with infrared positioning function according to claim 4 is it is characterised in that described LCDs
Viewing area be provided with an infrared filtering diaphragm, be used for filtering visible ray；
It is provided with metal edge frame outside described liquid crystal display platen edge, be used for preventing infrared light supply position from overflowing LCDs
Outward.
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| CN106712194A (en) * | 2017-01-18 | 2017-05-24 | 成都黑盒子电子技术有限公司 | Automatic charging control method of robot |
| CN110109207A (en) * | 2019-05-20 | 2019-08-09 | 深圳市利丰达展贸科技有限公司 | A kind of photosensitive radar coating structure of polychrome and film plating process |
| CN110517470B (en) * | 2019-07-12 | 2020-11-17 | 华为技术有限公司 | Remote control method, equipment and system |
| CN113596535B (en) * | 2020-04-30 | 2022-10-18 | 华为技术有限公司 | Pointing remote control method and system |
| CN112133078A (en) * | 2020-09-25 | 2020-12-25 | 成都吉锐时代触摸技术有限公司 | Remote control method of display equipment |
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| CN101847316A (en) * | 2010-05-27 | 2010-09-29 | 深圳市迈乐数码科技股份有限公司 | Infrared remote control system and remote control method for network television |
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