CN109144334A - A kind of capacitance touching control formula display device and display parameters detection method - Google Patents
A kind of capacitance touching control formula display device and display parameters detection method Download PDFInfo
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- CN109144334A CN109144334A CN201810791601.7A CN201810791601A CN109144334A CN 109144334 A CN109144334 A CN 109144334A CN 201810791601 A CN201810791601 A CN 201810791601A CN 109144334 A CN109144334 A CN 109144334A
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- capacitance touching
- touching control
- optical sensor
- screen
- display device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a kind of capacitance touching control formula display device and display parameters detection methods, device includes capacitance touching control screen, display screen, optical sensor and optical sensor board, the fixed electric installation of cloth member and the back side that do not walk, electric installation are not fixed on the back side of capacitance touching control screen and ground connection to optical sensor board again.The single side of optical sensor board lays the design of element and cabling, the technological means such as the application of the application of electric installation and altogether ground structure, so that the signal that optical sensor board generates can be exported from electric installation to ground in a manner of electrostatic, it is judged by accident so as to avoid the touch-control of capacitance touching control screen, and on mounting structure, optical sensor board is directly anchored to the back side of capacitance touching control screen, without keeping spacing between optical sensor and capacitance touching control screen, reduce the thickness of display device, it solves existing capacitance touching control formula display device and the larger technical problem of integral thickness is caused due to the use of preposition optical sensor.
Description
Technical field
The invention belongs to show detection technique field, specifically, being to be related to a kind of capacitance touching control formula display device and aobvious
Show parameter detection method.
Background technique
Medical diagnosis display needs to meet DICOM(Digital Imaging and communications
Medicine, digital imaging and communications in medicine) standard, this makes display need to configure preposition optical sensor, is based on optics
Sensor in real time or timing detection display parameters, to judge whether display meets dicom standard.
In existing capacitance touching control formula display device, as shown in Figure 1, including display screen 1 and being installed on 1 front of display screen
Capacitance touching control screen 2, optical sensor 3 and its optical sensor board 4 are then installed in front of display screen, are shown for detecting display screen
The display parameters such as the imagery optical or chromaticity coordinates in region, and send the data to driver module application；Due to preposition light
It learns sensor 3 also to be located in effective touch zone of action of capacitance touching control screen 2, detection signal can generate capacitance touching control screen dry
It disturbs, the capacitor between capacitance touching control screen and optical sensor board is caused to change, capacitance touching control screen is caused the touching of mistake occur
Control judgement.
To avoid interference of the optical sensor 3 to capacitance touching control screen 2, in the prior art, using in optical sensor 3 and electricity
Hold touch screen 2 between retain certain space D structure design, but this structure design cause the integral thickness of display compared with
Greatly.
Summary of the invention
This application provides a kind of capacitance touching control formula display device and display parameters detection methods, solve existing capacitive touch
Control formula display device due to preposition optical sensor use and cause the larger technical problem of integral thickness.
In order to solve the above technical problems, the application is achieved using following technical scheme:
It proposes a kind of capacitance touching control formula display device, including capacitance touching control screen, is installed on the display of the capacitance touching control screen back side
Screen and the optical sensor and optical sensor board being installed between the capacitance touching control screen and the display screen, the light
The front that sensor is laid in the optical sensor board is learned, the fixed electric installation in the back side of the optical sensor board is described
Electric installation is fixed on the back side of the capacitance touching control screen, so that the photosurface of the optical sensor is towards the display screen；
Wherein, the back side of the optical sensor board not cloth member and not cabling；The electric installation ground connection.
The display parameters detection method for proposing a kind of capacitance touching control formula display device, it is aobvious applied to above-mentioned capacitance touching control formula
In showing device, comprising: there are the regions of fixed point for detection capacitance touching control screen；It wherein, is the optics there are the region of fixed point
The installation region of sensor board；There are the touch-control sensings in the region of fixed point for shielding；Judge whether to receive display parameters detection
Instruction；If so, control is that the optical sensor board is powered, so that optical sensor starting detects the display screen
Display parameters.
Compared with prior art, the advantages of the application and good effect is: the capacitance touching control formula that the application proposes shows dress
Set and display parameters detection method in, by optical sensor board be designed as front lay element and cabling plank, do not lay member
The back side of part and not cabling is fixed with electric installation, and the electric installation is then fixed on the back side of capacitance touching control screen, so that optics
The photosurface of sensor is towards display screen, and electric installation is grounded, even if this signal for generating optical sensor board causes
Capacitor between capacitance touching control screen and optical sensor board changes, also can in a manner of electrostatic from electric installation export to
Ground, so that the signal that optical sensor board generates is isolated by electric installation and capacitance touching control screen, so as to avoid capacitor
The touch-control of touch screen is judged by accident, and the effect for the interference for avoiding optical sensor to capacitance touching control screen is realized, and on mounting structure,
Since the single side of optical sensor board lays the design of element and cabling, the application of electric installation and the application of ground structure altogether,
Optical sensor board can be directly anchored to the back side of capacitance touching control screen, without protecting between optical sensor and capacitance touching control screen
Spacing is held, that is, avoids interference of the optical sensor to capacitance touching control screen, also reduces the thickness of display device, is solved existing
Capacitance touching control formula display device due to preposition optical sensor use and cause the larger technical problem of integral thickness.
And the capacitance touching control formula display device that the application proposes, the structural member that optical sensor board is fixedly mounted can be reduced
Mold opening cost and infrastructure cost, reduce the cost of manufacture of display device；It is not necessary to modify the software and hardware configuration of capacitance touching control screen,
It can be general in traditional capacitance touch screen.
On the basis of reducing structural thickness, further to ensure that optical sensor does not generate interference to capacitance touching control screen,
In the display parameters detection method that the application proposes, by way of detecting capacitance touching control screen fixed point region, it will test out
Fixed point region, touch-control sensing shielding is implemented, so that the region not inductance capacitance in namely the region of installation optical sensor board
Variation, after optical sensor board powered operation, even if the capacitor between capacitance touching control screen and optical sensor board is caused to occur
Change it is more apparent, as the touch-control in the region shielded and avoid touch-control erroneous judgement.
After the detailed description of the application embodiment is read in conjunction with the figure, other features and advantages of the application will become more
Add clear.
Detailed description of the invention
Fig. 1 is the architecture diagram of this capacitance touching control formula display device in the prior art；
Fig. 2 is the architecture diagram for the capacitance touching control formula display device that the application proposes；
Fig. 3 is the flow chart of the display parameters detection method for the capacitance touching control formula display device that the application proposes.
Specific embodiment
The specific embodiment of the application is described in more detail with reference to the accompanying drawing.
The application proposes a kind of capacitance touching control formula display device, as shown in Fig. 2, including capacitance touching control screen 22, being installed on electricity
23 and of optical sensor for holding the display screen 21 of 22 back side of touch screen and being installed between capacitance touching control screen 22 and display screen 21
Optical sensor board 24, wherein optical sensor 23 is laid in the front of optical sensor board 24, and direction as shown in Figure 2 is aobvious
The side of display screen.The back side of optical sensor board 24 is fixed with electric installation 25, and electric installation 25 is fixed on capacitance touching control screen again
22 back side, so that the photosurface of optical sensor 23 is towards display screen 21；Wherein, the back side of optical sensor board 24 not cloth member
And not cabling；Also, electric installation 25 is grounded.During the application is implemented, the back side of optical sensor board 24 is towards capacitive touch
The one side of control screen 22, front installation optical sensor 23, is the one side towards display screen 21.
It is above-mentioned as it can be seen that the application propose capacitance touching control formula display device in, optical sensor board 24 is designed as front
The plank for laying element and cabling, does not lay element and electric installation 25 is not fixed at the back side of cabling then, and electric installation 25 is solid again
Due to the back side of capacitance touching control screen 22 so that the photosurface of optical sensor 23 is towards display screen 21, and electric installation 25 then with
Ground connection, even if this signal for generating optical sensor board 24 causes between capacitance touching control screen 22 and optical sensor board 24
Capacitor change, can also be exported from electric installation 25 to ground in a manner of electrostatic so that optical sensor board generate letter
Number it is isolated by electric installation 25 and capacitance touching control screen 22, judges by accident, realize so as to avoid the touch-control of capacitance touching control screen 22
Avoid the effect of interference of the optical sensor to capacitance touching control screen.
And on mounting structure, since the single side of optical sensor board 24 lays design, the electric installation of element and cabling
Optical sensor board 24, can be directly anchored to the back side of capacitance touching control screen 22 by 25 application and the altogether application of ground structure,
Without keeping spacing between optical sensor 23 and capacitance touching control screen 22, optical sensor is both avoided and capacitance touching control screen has been done
It disturbs, also reduces the thickness of display device, solve existing capacitance touching control formula display device is made due to preposition optical sensor
With and cause the larger technical problem of integral thickness.And the capacitance touching control formula display device that the application proposes is compared with prior art, energy
It is enough to reduce the mold opening cost and infrastructure cost that the structural member of optical sensor board is fixedly mounted, reduce being fabricated to for display device
This；It is not necessary to modify the software and hardware configurations of capacitance touching control screen, can be general in traditional capacitance touch screen, reduce development and application
Difficulty.
In the embodiment of the present application, electric installation 25 is used and is grounded with the connection type of capacitance touching control screen 22 altogether,
That is, electric installation 25 and capacitance touching control screen 22 are altogether, realize optical sensor board 24 and capacitance touching control screen 22 totally so that
The signal that optical sensor board generates is led when causing the capacitor between capacitance touching control screen and optical sensor board to change
Electric installation is exported from electric installation to the ground of capacitance touching control screen 22 in a manner of electrostatic.
During the application is implemented, electric installation 25 is conductive double sided adhesive tape or conductive film, and conductive double sided adhesive tape directly passes optics
Sensor plate 24 is pasted onto the back side of capacitance touching control screen 22, and the ground of capacitance touching control screen 22, conducting wire film are connected to by connecting line
It is then fixed on the back side of capacitance touching control screen 22, optical sensor board 24 then passes through non-conductive sticking double faced adhesive tape on conductive film,
Conductive film then passes through the ground that connecting line is connected to capacitance touching control screen 22.
Preferably, when pasting fixed, by the metal at the edge of conductive double sided adhesive tape or conductive film and capacitance touching control screen 22
Frame connection, the metal edge frame of capacitance touching control screen 22 connect with the ground of capacitance touching control screen again, are achieved in conductive double sided adhesive tape or lead
Conductive film and capacitance touching control screen totally, with the structure that electric installation connects with capacitance touching control screen metal edge frame, the letter from structure
Change the design that electric installation is connect with connecting line, can be improved reliability of structure.
In capacitance touching control formula display device set forth above, using electric installation by optical sensor board and capacitance touching control screen
It is directly fixed, and using electric installation and the design of capacitance touching control screen altogether, so that optical sensor board is not necessarily to and capacitance touching control
Spacing is held in screen protection, and electric installation here is equivalent to a shielded layer, optical sensor relative capacity touch screen is generated dry
It disturbs signal to guide to the ground of capacitance touching control screen, while reducing display device thickness, also ensures optical sensor not to electricity
Hold touch screen and generate interference, solves existing capacitance touching control formula display device due to preposition optical sensor from structure design
Use and cause the larger technical problem of integral thickness；In the embodiment of the present application, further to ensure optical sensor not to electricity
Hold touch screen and generates interference, it is also proposed that a kind of display parameters detection method of capacitance touching control formula display device, from system execution
Ensure capacitance touching control screen not by the interference of optics sensor detection signal.
As shown in figure 3, the display parameters detection method for the capacitance touching control formula display device that the application proposes, is applied to above-mentioned
In the capacitance touching control formula display device of proposition, include the following steps:
Step S31: there are the regions of fixed point for detection capacitance touching control screen.
After capacitance touching control formula display device powers on, display screen and capacitance touching control screen first is powered on, and optical sensor board is not
It powers on, when capacitance touching control screen is started to work, detects the presence for being pasted onto the electric installation at its back side, and the contact is not moved
It is dynamic, then judge the contact in fixed point region namely the application, there are the installations that the region of fixed point is optical sensor board
Region.
Step S32: there are the touch-control sensings in the region of fixed point for shielding.
After fixed point region has been determined, the touch-control sensing in the region of fixed point is shielded, that is, to occur solid at this
The touch-control for pinpointing region is not detected or ignores detected value, does not do touch-control judgement to the region, but the fixed point region is still normal
Display.
Step S33: judge whether to receive display parameters detection instruction.
After capacitance touching control screen completes above-mentioned two step, need to carry out brightness stability, white balance verification, DICOM verification
When, a display parameters detection instruction is generated, is having received the display parameters detection instruction in capacitance touching control formula display device
Afterwards,
Step S34: controlling and power for optical sensor board, so that the display parameters of optical sensor starting detection display screen.
The power supply module of capacitance touching control formula display device is then controlled to power for optical sensor board, and display core module is then given
Optical sensor write driver program, at this point, optical sensor can work normally.
The letters such as the imagery optical or chromaticity coordinates of optical sensor and optical sensor board detection display screen after normal work
Breath, and will test data and be sent to display core module, display core module is then based on these detection datas and carries out backlight adjustment
Or image quality adjustment etc., to realize brightness stability, white balance verification, DICOM verification etc..
In the embodiment of the present application, after step S33 judgement receives display parameters detection instruction, step can also be performed
S35, further system, which executes, ensures capacitance touching control screen not by the interference of optics sensor detection signal, and step S35: control stops
Only to the driving of capacitance touching control screen, and driving of the recovery to capacitance touching control screen after setting time；That is, breaking capacitance touch screen
The power supply of drive module, restores electricity after setting time, and during disconnection, capacitance touching control screen all shields any touch-control；In weight
After newly restoring electricity, capacitance touching control screen then re-execute the steps S31, or step is re-executed in the case where having recorded fixed point areas case
Rapid S33.
The capacitance touching control proposed corresponding to the display parameters detection method of capacitance touching control formula display device set forth above, the application
Formula display device further includes with lower module: power supply module, power control module, the capacitance touching control screen driving for driving capacitance touching control screen
Module, fixed point touch-control shroud module, fixed point regional record module etc..
Power supply module is that display screen 21, capacitance touching control screen 22, optical sensor board 24 and capacitance touching control screen drive module supply
Electricity；Power control module, for after capacitance touching control formula display device powers on, being that display screen 21 and capacitance touching control screen 22 are powered,
And control optical sensor board 24 powers off, and after receiving display parameters detection instruction, controls power supply module as optics biography
Sensor plate 24 is powered.
Power control module is also used to, and after powering for optical sensor board 24, control is broken as the driving of capacitance touching control screen
Module for power supply, and after setting time, control power supply module reverts to the power supply of capacitance touching control screen drive module.
Fixed point touch-control shroud module, for after capacitance touching control screen 22 powers on, detecting its region there are fixed point, and
There are the touch-control sensings in the region of fixed point for shielding；Wherein, there are the installation regions that the region of fixed point is optical sensor board；
Fixed point regional record module is then used to record the location information in fixed point region.
In the capacitance touching control formula display device and display parameters detection method that above-mentioned the application proposes, optical sensor board
Single side lays the technological means such as the design of element and cabling, the application of electric installation and the application of total ground structure, so that optics
Even if the signal that sensor board generates causes the capacitor between capacitance touching control screen and optical sensor board to change, also can be with quiet
The mode of electricity is exported from electric installation to ground, is judged by accident so as to avoid the touch-control of capacitance touching control screen, is realized and avoid optical sensing
For device to the effect of the interference of capacitance touching control screen, and on mounting structure, optical sensor board is directly anchored to capacitance touching control screen
The back side reduces the thickness of display device, solves existing electricity without keeping spacing between optical sensor and capacitance touching control screen
Hold touch control display device and the larger technical problem of integral thickness is caused due to the use of preposition optical sensor.Reducing structure
On the basis of thickness, using shielding installation optical sensor board fixed area, breaking capacitance touch screen drives mould during the test
The technological means of block power supply further ensures that optical sensor does not generate interference to capacitance touching control screen.
It should be noted that the above description is not a limitation of the present invention, the present invention is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made within the essential scope of the present invention, are also answered
It belongs to the scope of protection of the present invention.
Claims (10)
1. a kind of capacitance touching control formula display device, including capacitance touching control screen, the display screen that is installed on the capacitance touching control screen back side,
And it is installed on optical sensor and optical sensor board between the capacitance touching control screen and the display screen, the optics passes
Sensor is laid in the front of the optical sensor board, which is characterized in that
The fixed electric installation in the back side of the optical sensor board, the electric installation are fixed on the back of the capacitance touching control screen
Face, so that the photosurface of the optical sensor is towards the display screen；Wherein, the back side of the optical sensor board not cloth member
And not cabling；
The electric installation ground connection.
2. capacitance touching control formula display device according to claim 1, which is characterized in that the electric installation is conductive two-sided
Glue or conductive film.
3. capacitance touching control formula display device according to claim 2, which is characterized in that the conductive double sided adhesive tape or conductive thin
The edge of film is connect with the metal edge frame of the capacitance touching control screen；The metal edge frame and the capacitance touching control of the capacitance touching control screen
The ground of screen connects.
4. capacitance touching control formula display device according to claim 1, which is characterized in that the capacitance touching control formula display device
It further include power supply module and power control module；
The power supply module is the display screen, capacitance touching control screen and optical sensor board power supply.
5. the power control module, for after the capacitance touching control formula display device powers on, being the display screen and described
The power supply of capacitance touching control screen, and the control optical sensor board power-off；After receiving display parameters detection instruction, control
The power supply module is optical sensor board power supply.
6. capacitance touching control formula display device according to claim 4, which is characterized in that the capacitance touching control formula display device
It further include the capacitance touching control screen drive module for driving the capacitance touching control screen；The power supply module is also used to as the electricity
Hold the power supply of touch screen drive module；
The power control module is also used to, and after for optical sensor board power supply, control is broken as the capacitance touching control
Shield drive module power supply, and after setting time, control power supply module reverts to the capacitance touching control screen drive module power supply.
7. capacitance touching control formula display device according to claim 1, which is characterized in that the capacitance touching control formula display device
It further include fixed point touch-control shroud module；
The fixed point touch-control shroud module, for detecting its region there are fixed point after the capacitance touching control screen powers on,
And there are the touch-control sensings in the region of fixed point for shielding；Wherein, there are the peaces that the region of fixed point is the optical sensor board
Fill region.
8. capacitance touching control formula display device according to claim 1, which is characterized in that the electric installation and the capacitor
The ground of touch screen connects.
9. the display parameters detection method of capacitance touching control formula display device is applied to electricity as described in any one of claims 1-3
Hold in touch control display device characterized by comprising
Detecting capacitance touching control screen, there are the regions of fixed point；It wherein, is the optical sensor board there are the region of fixed point
Installation region；
There are the touch-control sensings in the region of fixed point for shielding；
Judge whether to receive display parameters detection instruction；If so,
Control is that the optical sensor board is powered, so that optical sensor starting detects the display ginseng of the display screen
Number.
10. the display parameters detection method of capacitance touching control formula display device according to claim 8, which is characterized in that
After judgement receives display parameters detection instruction, the method also includes:
Control stops the driving to the capacitance touching control screen, and restores the driving to the capacitance touching control screen after setting time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791601.7A CN109144334B (en) | 2018-07-18 | 2018-07-18 | Capacitive touch display device and display parameter detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791601.7A CN109144334B (en) | 2018-07-18 | 2018-07-18 | Capacitive touch display device and display parameter detection method |
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| Publication Number | Publication Date |
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| CN109144334A true CN109144334A (en) | 2019-01-04 |
| CN109144334B CN109144334B (en) | 2021-11-16 |
Family
ID=64801173
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| CN201810791601.7A Active CN109144334B (en) | 2018-07-18 | 2018-07-18 | Capacitive touch display device and display parameter detection method |
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| Publication number | Publication date |
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| CN109144334B (en) | 2021-11-16 |
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