CN106095159A - The driving method of touch screen, display device and display device - Google Patents
The driving method of touch screen, display device and display device Download PDFInfo
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- CN106095159A CN106095159A CN201610356493.1A CN201610356493A CN106095159A CN 106095159 A CN106095159 A CN 106095159A CN 201610356493 A CN201610356493 A CN 201610356493A CN 106095159 A CN106095159 A CN 106095159A
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- touch screen
- touch
- capacitance touching
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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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
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
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- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention provides the driving method of a kind of touch screen, display device and display device, this touch screen includes capacitance touching control circuit, described capacitance touching control circuit includes some capacitance touching control electrodes and the touch detection chip being connected with described capacitance touching control electrode, described touch screen also includes triggering circuit, described triggering circuit is used for detecting whether described touch screen is touched, and when detecting that described touch screen triggers described touch detection chip and exports touch scanning signals to described capacitance touching control electrode when being touched.The present invention can realize the reduction of touch screen power consumption, reaches the purpose of power saving.
Description
Technical field
The present invention relates to display field, particularly relate to the driving method of a kind of touch screen, display device and display device.
Background technology
Along with developing rapidly of Display Technique, touch screen (Touch Screen Panel) is the most gradually throughout the life of people
In work.Wherein, capacitive touch screen is with the touch-control principle of its uniqueness, by advantages such as high sensitivity, long-life, high transmission rates,
Pursued in the industry as new lover, but existing capacitive touch screen is existed the problem that power consumption is bigger.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is: provide the driving method of a kind of touch screen, display device and display device,
Power consumption can be reduced.
(2) technical scheme
For solving above-mentioned technical problem, technical scheme provides a kind of touch screen, including capacitance touching control circuit,
Described capacitance touching control circuit includes some capacitance touching control electrodes and the touch detection chip being connected with described capacitance touching control electrode,
Described touch screen also includes triggering circuit, and described triggering circuit is used for detecting whether described touch screen is touched, and when detection
Trigger described touch detection chip when being touched to described touch screen and export touch scanning signals to described capacitance touching control electrode.
Preferably, described triggering circuit includes detection chip and conductive layer, and described detection chip is for described conduction
Layer applies detection signal, and judges whether described touch screen is touched according to the feedback signal of described conductive layer.
Preferably, described conductive layer is netted, and the opening position that described capacitance touching control electrode is arranged on described conductive layer
Put.
For solving above-mentioned technical problem, present invention also offers a kind of display device, including touch screen, described touch screen bag
Including capacitance touching control circuit, described capacitance touching control circuit includes some capacitance touching control electrodes and is connected with described capacitance touching control electrode
Touch detection chip, described touch screen also includes triggering circuit, described triggering circuit be used for detecting described touch screen whether by
Touch, and when detecting that described touch screen triggers described touch detection chip and exports to described capacitance touching control electrode when being touched
Touch scanning signals.
Preferably, described triggering circuit includes detection chip and conductive layer, and described detection chip is for described conduction
Layer applies detection signal, and judges whether described touch screen is touched according to the feedback signal of described conductive layer.
Preferably, described conductive layer is netted, and the opening position that described capacitance touching control electrode is arranged on described conductive layer
Put.
Preferably, common electrode layer, pixel electrode layer and the liquid crystal layer for display is also included.
Preferably, described common electrode layer is multiplexed with described some capacitance touching control electrodes.
Preferably, described conductive layer and described pixel electrode layer are identical material and arrange with layer.
Preferably, described touch screen also includes that fingerprint recognition circuit, described fingerprint recognition circuit include that several are for knowing
The photosensitive touch-control module of other finger print information；
Described display device also includes control circuit, and described control circuit is for controlling when receiving finger scan order
The frame picture refreshing frequency of described display device is reduced to second frequency by first frequency, and when the frame of described display device is drawn
Face refreshing frequency controls described fingerprint recognition circuit and carries out fingerprint recognition after being reduced to second frequency.
For solving above-mentioned technical problem, present invention also offers the driving method of a kind of display device, described display device
Including touch screen, described touch screen include capacitance touching control circuit, described capacitance touching control circuit include some capacitance touching control electrodes with
And the touch detection chip being connected with described capacitance touching control electrode, it is characterised in that described driving method includes:
Testing circuit detects whether described touch screen is touched, and detects electricity when detecting that described touch screen is described when being touched
Road is triggered described touch detection chip and is exported touch scanning signals to described capacitance touching control electrode.
Preferably, described touch screen also includes that fingerprint recognition circuit, described fingerprint recognition circuit include that several are for knowing
The photosensitive touch-control module of other finger print information, described driving method also includes:
Control circuit controls the frame picture refreshing frequency of described display device by first when receiving finger scan order
Frequency is reduced to second frequency；
After the frame picture refreshing frequency of described display device is reduced to second frequency, control circuit controls the knowledge of described fingerprint
Other circuit carries out fingerprint recognition.
(3) beneficial effect
The touch screen that the present invention provides, by triggering whether electric circuit inspection touch screen is touched, is not touched at touch screen
In the case of, the touch detection chip in capacitance touching control circuit can not export touch scanning signals to capacitance touching control electrode, when
Triggering electric circuit inspection then triggers touch detection chip when being touched to touch screen and exports touch scanning signals to capacitance touching control electrode,
To carry out touch control detection, the reduction of touch screen power consumption can be realized by the way, reach the purpose of power saving.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of touch screen that embodiment of the present invention provides；
Fig. 2 is a kind of schematic diagram triggering circuit that embodiment of the present invention provides；
Fig. 3 is the driver' s timing figure of the display device that embodiment of the present invention provides；
Fig. 4 is the driving flow chart of the display device that embodiment of the present invention provides.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is described in further detail.Hereinafter implement
Example is used for illustrating the present invention, but is not limited to the scope of the present invention.
Seeing the schematic diagram that Fig. 1, Fig. 1 are a kind of touch screens that embodiment of the present invention provides, this touch screen includes electric capacity
Touch-control circuit 100, described capacitance touching control circuit includes some capacitance touching control electrodes and is connected with described capacitance touching control electrode
Touch detection chip, described touch screen also includes triggering circuit 200, and described triggering circuit 200 is used for detecting described touch screen and is
No it is touched, and when detecting that described touch screen triggers described touch detection chip to described capacitance touching control electrode when being touched
Output touch scanning signals.
The touch screen that embodiment of the present invention provides, by triggering whether electric circuit inspection touch screen is touched, at touch screen
In the case of not being touched, the touch detection chip in capacitance touching control circuit can not be to the output touch-control scanning of capacitance touching control electrode
Signal (i.e. capacitance touching control circuit does not carry out touch control detection), then triggers touch-control when triggering electric circuit inspection and being touched to touch screen and detects
Survey chip and export touch scanning signals to capacitance touching control electrode, to carry out touch control detection, can realize by the way touching
The reduction of screen power consumption, reaches the purpose of power saving.
Such as, described triggering circuit can include detection chip and conductive layer, and described detection chip is for leading to described
Electric layer applies detection signal, and judges whether described touch screen is touched according to the feedback signal of described conductive layer, wherein, triggers
Conductive layer in circuit can be the electrode of a planar or a netted electrode, and its size dimension can with touch screen mutually
Joining, when user touches the optional position on touch screen, user's finger all can form electric capacity, therefore with the conductive layer triggering circuit
Can judge whether touch screen is touched by user by the feedback signal of conductive layer, for above-mentioned triggering circuit, at touch screen
In the case of not being touched, triggering circuit only needs this electrode of conductive layer to apply detection signal, and this detection signal is only
For judging whether touch screen is touched, and touch location need not be detected, therefore, it is possible to effectively reduce touch screen power consumption, reach province
The purpose of electricity.
For example, it is possible to as in figure 2 it is shown, the conductive layer 210 triggered in circuit can be netted, and if capacitance touching control circuit
Dry capacitance touching control electrode 110 is arranged on the aperture position on conductive layer 210, wherein, triggers the detection chip 220 of circuit to conduction
The detection signal that layer 210 applies can be voltage square wave signal.
Additionally, embodiment of the present invention additionally provides a kind of display device, including touch screen, described touch screen includes electric capacity
Touch-control circuit (touch sensor), described capacitance touching control circuit include some capacitance touching control electrodes and with described capacitance touching control
The touch detection chip that electrode is connected, described touch screen also includes triggering circuit (Trigger sensor), described triggering circuit
For detecting whether described touch screen is touched, and when detecting that described touch screen triggers described touch detection core when being touched
Sheet exports touch scanning signals to described capacitance touching control electrode.
Such as, described triggering circuit includes detection chip and conductive layer, and described detection chip is for described conductive layer
Apply detection signal, and judge whether described touch screen is touched according to the feedback signal of described conductive layer.Wherein, circuit is triggered
In conductive layer can be the electrode of a planar or a netted electrode, its size dimension can match with touch screen,
When user touches the optional position on touch screen, user's finger all can form electric capacity with the conductive layer triggering circuit, therefore may be used
To judge whether touch screen is touched by user by the feedback signal of conductive layer, for above-mentioned triggering circuit, at touch screen not
In the case of being touched, triggering circuit only needs this electrode of conductive layer to apply detection signal, and detects signal and be served only for sentencing
Whether disconnected touch screen is touched, and need not detect touch location, therefore, it is possible to effectively reduce touch screen power consumption, reaches the mesh of power saving
's.
Such as, the conductive layer triggered in circuit can be netted, and some capacitance touching control electrodes of capacitance touching control circuit set
Put aperture position on the electrically conductive.
Wherein, the display device in embodiment of the present invention can be liquid crystal indicator, and it also includes for display
Common electrode layer, pixel electrode layer and liquid crystal layer.Wherein, above-mentioned touch screen can be in cell structure, for example, it is possible to
Some capacitance touching control electrodes that the common electrode layer of liquid crystal indicator is multiplexed with in capacitance touching control circuit, and use timesharing to drive
Flowing mode, its driver' s timing figure is as it is shown on figure 3, when touch screen is not touched, i.e. only showing stage (Always display
Stage), touch detection chip is not to capacitance touching control electrode output touch scanning signals (the most not carrying out touch control detection), now electric capacity
Touch control electrode is used as public electrode with realization display function, meanwhile, the detection chip conductive layer output detections in triggering circuit
Signal, whether real-time judge touch screen is touched, when triggering electric circuit inspection and being touched to touch screen, trigger circuit triggers touch-control
Detecting chip exports touch scanning signals to capacitance touching control electrode, owing to capacitance touching control electrode also serves as the common electrical for display
Pole, for realizing touch control detection and display function simultaneously, can use timesharing type of drive, i.e. enter the display touch-control timesharing stage
(display touch separation stage), in this stage, a frame time can be divided into two stages, respectively touch-controls
Stage and display stage, wherein, in the touch-control stage, touch detection chip exports touch scanning signals with reality to capacitance touching control electrode
The detection of existing touch location, enters the display stage after the touch-control stage completes, and now, touch detection chip is not to capacitance touching control electricity
Pole output touch scanning signals, is used as public electrode by capacitance touching control electrode and shows function with realization, on display touch-control timesharing rank
Each frame time in Duan repeats the above-mentioned two stage, thus realizes touch control detection and display function simultaneously；
Additionally, in the display touch-control timesharing stage, trigger detection signal and touch detection that the detection chip in circuit exports
The touch scanning signals of chip output can synchronize (i.e. both synchronize to drive), to reduce the conductive layer triggered in circuit to electric capacity
Touch control electrode produces extra load (loading)；
Additionally, at trigger circuit triggers touch detection chip after capacitance touching control electrode output touch scanning signals, if
Within the default time period, it is not detected by touch screen be touched, then triggers circuit and can trigger the stopping of touch detection chip to electric capacity
Touch control electrode output touch scanning signals, to reach the effect of power saving；
Preferably, the conductive layer in described triggering circuit and pixel electrode layer can be identical material and arrange, i.e. with layer
Trigger the conductive layer in circuit to be made when making pixel electrode layer simultaneously, thus reduce the composition work of display device
Skill number of times.
Additionally, in the display device that embodiment of the present invention provides, touch screen therein also includes fingerprint recognition circuit,
Fingerprint recognition circuit utilizes light sensitivity principles to realize the detection of finger print information, and it includes that several are for identifying the photosensitive of finger print information
Touch-control module；
Described display device also includes control circuit, and described control circuit is for controlling when receiving finger scan order
The frame picture refreshing frequency (i.e. showing rate of scanning) of described display device is reduced to second frequency by first frequency, and works as institute
State and control described fingerprint recognition circuit after the frame picture refreshing frequency of display device is reduced to second frequency and carry out fingerprint recognition；
When receiving finger scan order, by control circuit by the frame picture refreshing frequency of display device by the first frequency
Rate is reduced to second frequency, makes a frame time of display device lengthen, such that it is able to realize finger scan frequency compared to existing technology
The reduction (prolongation of fingerprint sweep phase time in i.e. one frame time) of rate；
Seeing Fig. 4, after finger scan order being detected in the touch-control stage, control circuit controls the frame picture of display device
Refreshing frequency reduces, and to extend the time of display device one frame, then the portion of time of the frame time after prolongation is carried out
Display scanning (i.e. showing the stage), the remainder time of the frame time after prolongation carries out finger scan and (i.e. refers to the most again
Stricture of vagina sweep phase), such as, by the frame picture refreshing frequency of display device is reduced, the time of multiframe picture can be merged
It is a frame, in a frame time after merging, can be using a portion time (such as the time of several frames before merging) as aobvious
Showing that the stage carries out display scanning, remainder time as the finger scan stage is carried out finger scan, such light source is more steady
Under stable condition, relatively stable finger print information in the case of the time is the most plentiful, can be read, after finger print information identification completes,
The frame picture refreshing frequency of display device can be become first frequency from second frequency by control circuit again, with realize normal display and
Touch-control.
Such as, during mobile payment, in the touch-control stage, when entering software interface, user clicks on payment button
After, the frame picture refreshing frequency of display device can be reduced to 30HZ by 60HZ by control circuit, and display lengthens, then sweep time
Carry out the finger scan stage, normally show after finger print information identification completes and the touch-control stage, in above process, due to
Display device one frame time extends, and so can realize the reduction of finger scan frequency compared to existing technology, is conducive to accumulation
The increase of data, beneficially signal-obtaining.
The display device that embodiment of the present invention provides, by triggering whether electric circuit inspection touch screen is touched, is touching
In the case of screen is not touched, the touch detection chip in capacitance touching control circuit can not be swept to capacitance touching control electrode output touch-control
Retouch signal, then trigger touch detection chip when triggering electric circuit inspection and being touched to touch screen and export touch-control to capacitance touching control electrode
Scanning signal, thus reach the purpose of power saving, it addition, control display dress when receiving finger scan order by control circuit
The frame picture refreshing frequency put is reduced to second frequency by first frequency, it is possible to be conducive to the reading of finger print information, it is achieved display
The optimization of device.
Additionally, embodiment of the present invention additionally provides the driving method of a kind of display device, described display device includes touching
Touch screen, described touch screen include capacitance touching control circuit, described capacitance touching control circuit include some capacitance touching control electrodes and with institute
Stating the touch detection chip that capacitance touching control electrode is connected, wherein, described driving method includes:
Testing circuit detects whether described touch screen is touched, and detects electricity when detecting that described touch screen is described when being touched
Road is triggered described touch detection chip and is exported touch scanning signals to described capacitance touching control electrode.
Wherein, described touch screen also includes that fingerprint recognition circuit, described fingerprint recognition circuit include that several are for identifying
The photosensitive touch-control module of finger print information, described driving method also includes:
Control circuit controls the frame picture refreshing frequency of described display device by first when receiving finger scan order
Frequency is reduced to second frequency；
After the frame picture refreshing frequency of described display device is reduced to second frequency, control circuit controls the knowledge of described fingerprint
Other circuit carries out fingerprint recognition.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, common about technical field
Technical staff, without departing from the spirit and scope of the present invention, it is also possible to make a variety of changes and modification, therefore own
The technical scheme of equivalent falls within scope of the invention, and the scope of patent protection of the present invention should be defined by the claims.
Claims (12)
1. a touch screen, including capacitance touching control circuit, described capacitance touching control circuit include some capacitance touching control electrodes and with
The touch detection chip that described capacitance touching control electrode is connected, it is characterised in that described touch screen also includes triggering circuit, described tactile
Power Generation Road is used for detecting whether described touch screen is touched, and when detecting that described touch screen triggers described touch-control when being touched
Detecting chip exports touch scanning signals to described capacitance touching control electrode.
Touch screen the most according to claim 1, it is characterised in that described triggering circuit includes detection chip and conduction
Layer, described detection chip is for applying detection signal to described conductive layer, and judges institute according to the feedback signal of described conductive layer
State whether touch screen is touched.
Touch screen the most according to claim 2, it is characterised in that described conductive layer is netted, and described capacitance touching control electricity
Pole is arranged on the aperture position on described conductive layer.
4. a display device, including touch screen, described touch screen includes that capacitance touching control circuit, described capacitance touching control circuit include
Some capacitance touching control electrodes and the touch detection chip being connected with described capacitance touching control electrode, it is characterised in that described touch
Screen also includes triggering circuit, and described triggering circuit is used for detecting whether described touch screen is touched, and when described touching being detected
Touch and trigger described touch detection chip when screen is touched to described capacitance touching control electrode output touch scanning signals.
Display device the most according to claim 4, it is characterised in that described triggering circuit includes detection chip and conduction
Layer, described detection chip is for applying detection signal to described conductive layer, and judges institute according to the feedback signal of described conductive layer
State whether touch screen is touched.
Display device the most according to claim 5, it is characterised in that described conductive layer is netted, and described capacitance touching control
Electrode is arranged on the aperture position on described conductive layer.
Display device the most according to claim 5, it is characterised in that also include the common electrode layer for display, pixel
Electrode layer and liquid crystal layer.
Display device the most according to claim 7, it is characterised in that described common electrode layer is multiplexed with described some electric capacity
Touch control electrode.
Display device the most according to claim 7, it is characterised in that described conductive layer and described pixel electrode layer are identical
Material and with layer arrange.
10. according to the arbitrary described display device of claim 4-9, it is characterised in that described touch screen also includes fingerprint recognition
Circuit, described fingerprint recognition circuit includes that several are for the photosensitive touch-control module identifying finger print information；
Described display device also includes control circuit, and described control circuit is described for controlling when receiving finger scan order
The frame picture refreshing frequency of display device is reduced to second frequency by first frequency, and when the frame picture brush of described display device
New frequency controls described fingerprint recognition circuit after being reduced to second frequency and carries out fingerprint recognition.
The driving method of 11. 1 kinds of display devices, described display device includes that touch screen, described touch screen include capacitance touching control electricity
Road, described capacitance touching control circuit includes some capacitance touching control electrodes and the touch detection core being connected with described capacitance touching control electrode
Sheet, it is characterised in that described driving method includes:
Testing circuit detect described touch screen whether be touched, when detect described touch screen when being touched described testing circuit touch
Send out touch detection chip described and export touch scanning signals to described capacitance touching control electrode.
The driving method of 12. display devices according to claim 11, it is characterised in that described touch screen also includes fingerprint
Identification circuit, described fingerprint recognition circuit includes that several are for the photosensitive touch-control module identifying finger print information, described driving side
Method also includes:
Control circuit controls the frame picture refreshing frequency of described display device by first frequency when receiving finger scan order
It is reduced to second frequency；
After the frame picture refreshing frequency of described display device is reduced to second frequency, control circuit controls described fingerprint recognition electricity
Road carries out fingerprint recognition.
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| CN201610356493.1A CN106095159B (en) | 2016-05-25 | 2016-05-25 | The driving method of touch screen, display device and display device |
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| CN110796983B (en) * | 2019-11-13 | 2021-06-11 | 厦门天马微电子有限公司 | Display device and driving method thereof |
| CN110796983A (en) * | 2019-11-13 | 2020-02-14 | 厦门天马微电子有限公司 | Display device and driving method thereof |
| CN113689831A (en) * | 2020-05-15 | 2021-11-23 | 鸿富锦精密工业（深圳）有限公司 | Driving method and display device |
| WO2022151536A1 (en) * | 2021-01-14 | 2022-07-21 | 深圳市华星光电半导体显示技术有限公司 | Display panel and driving method therefor |
| CN114201078A (en) * | 2022-02-18 | 2022-03-18 | 深圳贝特莱电子科技股份有限公司 | Touch device, equipment and method for improving LED display performance |
| CN114201078B (en) * | 2022-02-18 | 2022-04-22 | 深圳贝特莱电子科技股份有限公司 | Touch device, equipment and method for improving LED display performance |
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