CN108717333A - Display control unit, control method, the terminal device of display screen - Google Patents
Display control unit, control method, the terminal device of display screen Download PDFInfo
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- CN108717333A CN108717333A CN201810178435.3A CN201810178435A CN108717333A CN 108717333 A CN108717333 A CN 108717333A CN 201810178435 A CN201810178435 A CN 201810178435A CN 108717333 A CN108717333 A CN 108717333A
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- controllable switch
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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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Computer Hardware Design (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
This application discloses a kind of display control unit of display screen, control method, terminal device, the touch-control TP lines and common voltage Vcom line time-sharing multiplexes, the display control unit of the display screen include：Controllable switch unit, controllable switch unit is for controlling whether Vcom lines are grounded；Display control chip, display control chip is for controlling controllable switch unit in the gap before carrying out Vcom line scannings after the TP line ends of scan, so that the every Vcom line ground connection of display screen, to carry out discharge treatment to each Vcom lines.Thus, the residual charge left after the TP line ends of scan can quickly be eliminated, it drifts about to effectively solve the problems, such as that subsequent display screen occurs screen flash and Flicker when show picture, reliable guarantee is provided for display screen display picture, the very big use good opinion for improving user.
Description
Technical field
This application involves electronic technology field, more particularly to a kind of display control unit of display screen, control method, terminal
Equipment.
Background technology
In order to realize that the slimming and lightweight of terminal device control panel one kind occur at present in electronic industry
In-cell display screens.Wherein, In-cell refers to the method being embedded into touch panel function in liquid crystal display panel, i.e., in In-
It is integrated to increase touch-control on the main flexible PCB of cell display screens (Flexible Printed Circuit board, abbreviation FPC)
Circuit (Integrated Circuit, abbreviation IC) and button connector, so that originally external touch panel component and liquid crystal
Panel realizes integration.
Currently, the framework of In-cell display screens is usually Full-Incell structures, which passes through a shared line
Time-sharing multiplex (display screen Vcom lines share same circuit with TP lines) is carried out, realizes display operation and the scan operation of display screen.
When needing to show picture, above-mentioned shared line is connected to display reference power source, to carry out display operation；When being swept
When retouching operation, then above-mentioned shared line is connected to turntable driving power supply, to be scanned operation.
However, it is found by the inventors that when terminal device is in blank screen gesture function pattern, above-mentioned shared line is as scanning
Line (TP lines), connect with turntable driving power supply, and to realize scan operation, this allows for having residual charge in shared line.
When display screen is lit, if at this time connecting shared line with display reference power source, the charge on shared line (Vcom) is not
It is eliminated, easily liquid crystal display panel is caused to be polarized, the problems such as screen flash and Flicker drifts occur, to influence the normal of user
It uses, reduces the use good opinion of user.
Invention content
The application is intended to solve above-mentioned one of technological deficiency at least to a certain extent.
For this purpose, first purpose of the application is to propose a kind of display control unit of display screen, the device is in TP lines
Controllable switch unit is controlled in gap before carrying out Vcom line scannings after the end of scan, so that every of display screen
Vcom lines are grounded, to carry out discharge treatment to each Vcom lines, quickly to eliminate the residual charge left after the TP line ends of scan,
To effectively solve the problems, such as that subsequent display screen occurs screen flash and Flicker drifts when showing picture, picture is shown for display screen
Face provides reliable guarantee, the very big use good opinion for improving user.
Second purpose of the application is to propose a kind of terminal device.
The third purpose of the application is to propose a kind of display control method of display screen.
The 4th purpose of the application is to propose a kind of computer readable storage medium.
The 5th purpose of the application is to propose a kind of terminal device.
To achieve the above object, the application first aspect embodiment proposes a kind of display control unit of display screen, institute
The touch-control TP lines and common voltage Vcom line time-sharing multiplexes, the display control unit for stating display screen include：Controllable switch unit,
The controllable switch unit is for controlling whether the Vcom lines are grounded；Display control chip, the display control chip are used for
The controllable switch unit is controlled in gap before carrying out the Vcom lines scanning after the TP lines end of scan
System, so that the every Vcom line ground connection of the display screen, to carry out discharge treatment to each Vcom lines.
To achieve the above object, the application second aspect embodiment proposes a kind of terminal device comprising above-mentioned is aobvious
The display control unit of display screen.
To achieve the above object, the application third aspect embodiment proposes a kind of display control method of display screen, institute
The touch-control TP lines and common voltage Vcom line time-sharing multiplexes of display screen are stated, the display screen further includes for controlling the Vcom lines
The controllable switch unit whether being grounded, the display control method include the following steps：Judge the current state of the display screen；
When carrying out the gap before the Vcom lines scan after the display screen is currently at the TP lines end of scan, to described
Controllable switch unit is controlled, so that the every Vcom line ground connection of the display screen, to be put to each Vcom lines
Electric treatment.
To achieve the above object, the application fourth aspect embodiment proposes a kind of computer readable storage medium, thereon
It is stored with computer program, when which is executed by processor, realizes the display control described in third aspect embodiment
Method.
To achieve the above object, the 5th aspect embodiment of the application proposes a kind of terminal device, including display screen, storage
Device, processor and it is stored in the display control program that can be run on the memory and on a processor, wherein the display control
The display control method described in third aspect embodiment is realized when processing procedure sequence is executed by the processor.
Technical solution disclosed in the present application, has the advantages that：
Controllable switch unit is controlled in gap before carrying out Vcom line scannings after the TP line ends of scan, with
Every Vcom line of display screen is set to be grounded, to carry out discharge treatment to each Vcom lines, after quickly eliminating the TP line ends of scan
The residual charge left, to effectively solve the problems, such as that subsequent display screen occurs screen flash and Flicker drifts when showing picture,
Show that picture provides reliable guarantee for display screen, the very big use good opinion for improving user.
The additional aspect of the application and advantage will be set forth in part in the description, and will partly become from the following description
It obtains obviously, or recognized by the practice of the application.
Description of the drawings
The application is above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein
Fig. 1 is the block diagram according to the display control unit of the display screen of the application one embodiment；
Fig. 2 is the schematic diagram according to the display control unit of the display screen of the application another embodiment；
Fig. 3 is the flow chart according to the display control method of the display screen of the application one embodiment.
Specific implementation mode
Embodiments herein is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the application, and should not be understood as the limitation to the application.
In order to solve in the related technology, when terminal device is in blank screen gesture function pattern, shared line is as scanning
Line (TP lines), connect with turntable driving power supply, and to realize scan operation, this allows for having residual charge in shared line.
When display screen is lit, if at this time connecting shared line with display reference power source, the charge on shared line (Vcom) is not
It is eliminated, easily liquid crystal display panel is caused to be polarized, the problems such as screen flash and Flicker drifts occur, to influence the normal of user
A kind of the problem of using, reducing the use good opinion of user, it is proposed that display control unit of display screen.
The display control unit of the display screen of the application first determines whether the current state of display screen, when display screen is currently located
When carrying out the gap before Vcom line scannings after the TP lines end of scan, display control chip controls controllable switch unit
System, so that the every Vcom line ground connection of display screen, to carry out discharge treatment to each Vcom lines.Hereby it is achieved that each
Vcom lines carry out discharge treatment, follow-up aobvious to effectively solve quickly to eliminate the residual charge left after the TP line ends of scan
Display screen occurs the problem of screen flash and Flicker drifts when showing picture, shows that picture provides reliable guarantee, pole for display screen
The big use good opinion for improving user.
Below with reference to the accompanying drawings display control unit, control method, the terminal device of the display screen of the embodiment of the present application are described
It is described in detail.
First, the display control unit of display screen in the application is specifically described in conjunction with Fig. 1 and Fig. 2.
Fig. 1 is the block diagram according to the display control unit of the display screen of the application one embodiment；Fig. 2 is basis
The schematic diagram of the display control unit of the display screen of another embodiment of the application.
As depicted in figs. 1 and 2, the touch-control TP lines of display screen and common voltage Vcom line time-sharing multiplexes.Wherein, time-sharing multiplex
It is to transmit different signals using the different periods of same physical connection, can achievees the purpose that multiplexing, answer in a network
For with a line transmission multichannel data.
Time-sharing multiplex divided using the time as signal transmission parameter, therefore must the roads Shi Ge signal do not weigh mutually on a timeline
It is folded, to make the interior transmission in different times of different signals.Entire transmission time is divided into the time interval of non-overlapping copies,
Also known as time slot.These time slots are distributed to each signal source and used by time-sharing multiplexing technology, and each time slot can only be believed all the way
Number occupy.Time-sharing multiplex realizes that a circuit transmits multichannel letter per a part for signal all the way by intersecting to send in time
Number, each of short duration moment on circuit, only signal existed all the way.
Based on the principle of above-mentioned time-sharing multiplex, the framework of In-cell display screens is usually Full-Incell structures, the knot
Structure shares a circuit, to realize display operation and the scan operation of display screen.When needing to show picture, by above-mentioned bridging line
Road is connected to display reference power source (as Vcom lines), to carry out display operation；It, then will be above-mentioned when needing to be scanned operation
Shared line is connected to turntable driving power supply (as TP lines), to be scanned operation.
Wherein, there are regular hour gaps after being scanned operation and before display operation, therefore, can be fully sharp
The residual charge on circuit is eliminated with the gap, to ensure that display screen shows the reliability of picture, improves the use good opinion of user.
As shown in Figure 1, the display control unit of the display screen of the application may include：Controllable switch unit 10 and display control
Chip 20.
Wherein, controllable switch unit 10 is for controlling whether Vcom lines are grounded.Display control chip 20 in TP lines for sweeping
It retouches and controllable switch unit 10 is controlled in the gap before carrying out Vcom line scannings after terminating, so that every of display screen
Vcom lines are grounded, to carry out discharge treatment to each Vcom lines.
Wherein, above-mentioned apparatus is configured in terminal device, is controlled display screen with realizing.Terminal device can be
The arbitrary hardware device with In-cell display screens, such as smart mobile phone, personal digital assistant (Personal Digital
Assistant, referred to as PDA), tablet computer etc., the application is not especially limited this.
Specifically, the current state of display screen is first determined, wherein the state that display screen is presently in may include：Bright screen
State and black state.When specific implementation, the state that terminal display screen is presently in can be determined in the following manner,
It is illustrated below：
Mode one determines the state that terminal display screen is presently in by obtaining PowerManager events.For example, working as
When isScreenOn=ture in PowerManager, determine that terminal display screen is currently at bright screen state, it is on the contrary then be black
Screen state.
Mode two determines the state that terminal display screen is presently in by way of listening broadcast.If for example,
It is Intent.ACTION_SCREEN_ON that BroadcastReceiver, which listens to broadcast event, then illustrates that display screen is currently at
Bright screen state；If it is Intent.ACTION_SCREEN_OFF that BroadcastReceiver, which listens to broadcast event, illustrate aobvious
Display screen is currently at black state.
Except of course that except above two mode, the present embodiment can also determine that terminal display screen is worked as otherwise
Preceding state in which, is herein not especially limited it.
According to one embodiment of the application, if display screen is currently at black state, judge whether terminal is currently located
In blank screen gesture working condition, when display screen is currently at blank screen gesture working condition, display control chip 20 is additionally operable to
Controllable switch unit 10 is controlled after each end of scan of TP lines, so that the every Vcom line ground connection of display screen.
Wherein, blank screen gesture working condition, in particular to terminal device can be supported under black state in the present embodiment
Screen slide, so that user can directly wake up a certain function or corresponding using journey of terminal using preset gesture
Sequence.Such as：If the gesture of user's sliding is to draw upwards, and preset gesture is to draw to enter camera interface upwards, then working as terminal
Equipment is under black state, when detecting the gesture of user's upward sliding, then enters the camera interface of terminal.
Specifically, when determining that display screen is currently at black state, then the present embodiment is presently in terminal device
Working condition is judged, to determine whether terminal is currently in blank screen gesture working condition.For example, can be by blank screen gesture
Whether one monitor is set in function module, to be monitored by unlatching blank screen gesture function module, if listening to above-mentioned
When blank screen gesture function module is opened, then illustrates that terminal is currently at blank screen gesture working condition, otherwise illustrate that terminal is current
It is not at blank screen gesture working condition, or can also otherwise, to terminal currently whether in the work of blank screen gesture
State is determined, and the present embodiment is not especially limited this.
When determining that terminal is currently at blank screen gesture working condition, scanning behaviour is being realized in order to quickly eliminate shared line
Remaining charge after work, the display control unit of the display screen of the present embodiment carry out Vcom later using the TP lines end of scan
In gap before line scanning, switch unit 10 is controlled, so that the every Vcom line ground connection of display screen, with to each
Vcom lines carry out discharge treatment.By the way that every Vcom line to be grounded, remaining charge is discharged, is shown for subsequent display screen
Show that normal pictures provide guarantee.
When specific implementation, display control chip 20 can touch scan period initial time, and control shared line is (as TP
Line) it is connect with turntable driving power supply, at the end of touching the scan period, control controllable switch unit action (as being closed), with
Vcom lines are made to be grounded.Wherein, it can be that manufacturer terminal is pre-set when dispatching from the factory to touch the scan period, can also be that user makes by oneself
Justice setting, the present embodiment is not especially limited this.
It is understood that the present embodiment constitutes discharge loop, with to each Vcom lines by the way that every Vcom line to be grounded
Discharge treatment is carried out, so as to residual charge on quick release shared line.
For example, if it is 2s to touch the scan period, then display control chip 20 can touch scan period initial time, control
Shared line (as TP lines) processed is attached with turntable driving power supply, and after 2s, display control chip 20, which controls, controllably to be opened
Close unit 10 acted, the connection to disconnect shared line (as TP lines) and turntable driving power supply, by shared line (as
Vcom lines) it is connected to ground, remaining charge on Vcom lines is discharged.
Controllable switch unit 10 is explained below.
According to one embodiment of the application, as shown in Fig. 2, display screen may include a plurality of Vcom lines, controllable switch unit
10 may include：11 and second controllable switch 12 of multiple first controllable switches.Wherein, the first end pair of each first controllable switch 11
It should be connected to every Vcom line, the second end of each first controllable switch 11 is connected together to constitute first node J1.Second
The first end of controllable switch 12 is connected with first node J1, the second end ground connection of the second controllable switch 12, the second controllable switch 12
Control terminal be connected with the control terminal of each first controllable switch 11 after be connected to display control chip 20, wherein display control
Coremaking piece 20 opens control signal to the second controllable switch 12 and each first controllable switch 11 by output, can with control second
Control switch 12 and each first controllable switch 11 are closed.
When specific implementation, by taking Fig. 2 as an example, multiple first controllable switches 11 may include that the first controllable switch 11A and first can
Control switch 11B.When display screen is currently at blank screen gesture working condition, display control chip 20 outputs control signals to first
Controllable switch 11A, the first controllable switch 11B and the second controllable switch 12, so that the first controllable switch 11A, the first controllable switch
11B and the second controllable switch 12 are in off-state, at this time shared line as TP lines, it can be achieved that display screen scanning behaviour
Make.After the TP line ends of scan, the output of display control chip 20 open control signal to the first controllable switch 11A, first can
Switch 11B and the second controllable switch 12 are controlled, so that the first controllable switch 11A, the first controllable switch 11B and the second controllable switch 12
It is in closed state, as Vcom lines, all Vcom lines join together shared line, and are connected to the ground at this time.Therefore, may be used
It is aobvious to ensure by making full use of time slot of the scan operation later and before display operation to eliminate the residual charge on circuit
Display screen shows the reliability of picture, improves the use good opinion of user.
As a kind of possible realization method of the application, the first controllable switch 11 and the second controllable switch 12 all can be
Metal-oxide-semiconductor.Wherein, metal-oxide-semiconductor may include that N-channel MOS pipe and P-channel metal-oxide-semiconductor, the turn-on condition of metal-oxide-semiconductor depend on grid (G) and source
Voltage difference Vgs (grid voltage-source voltage) between pole (S), for N-channel MOS pipe, general grid voltage is more than source
When pole tension (i.e. voltage difference is positive value), it is believed that conducting；For P-channel metal-oxide-semiconductor, general grid voltage is less than source electrode electricity
When pressure (i.e. voltage difference is negative value), it is believed that conducting.In circuit, positive voltage is easier to obtain, so usually circuit can be adopted
With N-channel MOS pipe.
By taking the first controllable switch shown in Fig. 2 and the second controllable switch are N-channel MOS pipe as an example, when display screen is current
When in blank screen gesture working condition, display control chip 20 exports low level control signal to the first controllable switch 11A, first
Controllable switch 11B and the second controllable switch 12, at this time the first controllable switch 11A, the first controllable switch 11B and the second controllable switch
12 are off, and shared line is as TP lines, it can be achieved that the scan operation of display screen.After the TP line ends of scan, show
Show that control chip 20 exports high-level control signal to the first controllable switch 11A, the first controllable switch 11B and the second controllable switch
12, the first controllable switch 11A, the first controllable switch 11B and the second controllable switch 12 are in closed state, shared line at this time
As Vcom lines, all Vcom lines join together, and are connected to the ground, and to carry out discharge treatment to each Vcom lines, reach fast
Speed eliminates the effect of residual charge.
The display control unit of display screen provided by the present application, before carrying out Vcom line scannings after the TP line ends of scan
Gap in controllable switch unit is controlled so that display screen every Vcom line ground connection, with to each Vcom lines carry out
Discharge treatment is being shown with quickly eliminating the residual charge left after the TP line ends of scan to effectively solve subsequent display screen
Occur the problem of screen flash and Flicker drift about when picture, reliable guarantee is provided for display screen display picture, it is very big to improve
The use good opinion of user.
In order to realize that above-described embodiment, the application also proposed a kind of terminal device comprising above-mentioned display screen is shown
Show control device.
Wherein, terminal device can be the arbitrary hardware device with In-cell display screens, such as smart mobile phone, individual
Digital assistants (Personal Digital Assistant, referred to as PDA), tablet computer etc., the application does not make this to have
Body limits.
It should be noted that the explanation of the aforementioned display control unit embodiment to display screen is also applied for the implementation
The terminal device of example, realization principle is similar, and details are not described herein again.
Terminal device provided in this embodiment, it is right in the gap before progress Vcom line scannings after the TP line ends of scan
Controllable switch unit is controlled, so that the every Vcom line ground connection of display screen, to carry out discharge treatment to each Vcom lines, with
The residual charge left after the TP line ends of scan is quickly eliminated, is shielded when showing picture to effectively solve subsequent display screen
It dodges and the problem of Flicker drifts, reliable guarantee is provided for display screen display picture, the very big use for improving user is good
Sense.
In order to realize that above-described embodiment, the application also proposed a kind of display control method of display screen.
Fig. 3 is the flow chart according to the display control method of the display screen of the application one embodiment.
As shown in figure 3, the display control method of the display screen of the application may include following steps：
S1 judges the current state of display screen.
S2, when display screen is currently at the gap before the TP lines end of scan carries out Vcom line scannings later, to controllable
Switch unit is controlled, so that the every Vcom line ground connection of display screen, to carry out discharge treatment to each Vcom lines.
According to one embodiment of the application, display screen includes a plurality of Vcom lines, and controllable switch unit includes multiple first
Controllable switch and the second controllable switch, the first end of each first controllable switch are correspondingly connected with every Vcom line, and each first
The second end of controllable switch is connected together to constitute first node, and the first end of the second controllable switch is connected with first node,
The second end of second controllable switch is grounded, and the control terminal of the second controllable switch is connected with the control terminal of each first controllable switch,
Wherein, controllable switch unit is controlled, including：Control signal is opened to the second controllable switch and each first by output
Controllable switch is closed with controlling the second controllable switch and each first controllable switch.
According to one embodiment of the application, when display screen is currently at blank screen gesture working condition, also by TP
Controllable switch unit is controlled after each end of scan of line, so that the every Vcom line ground connection of display screen.
It should be noted that the explanation of the aforementioned display control unit embodiment to display screen is also applied for the implementation
The display control method of the display screen of example, realization principle is similar, and details are not described herein again.
The display control method of display screen provided in this embodiment first determines whether the current state of display screen, works as display screen
When the gap being currently at before the TP lines end of scan carries out Vcom line scannings later, controllable switch unit is controlled, with
Every Vcom line of display screen is set to be grounded, to carry out discharge treatment to each Vcom lines, after quickly eliminating the TP line ends of scan
The residual charge left, to effectively solve the problems, such as that subsequent display screen occurs screen flash and Flicker drifts when showing picture,
Show that picture provides reliable guarantee for display screen, the very big use good opinion for improving user.
In order to realize that above-described embodiment, the application also proposed a kind of computer readable storage medium.
The computer readable storage medium, is stored thereon with computer program, when which is executed by processor,
Realize above-mentioned display control method.Wherein, the display control method of display screen may include：Judge the current state of display screen,
When display screen is currently at the gap before the TP lines end of scan carries out Vcom line scannings later, controllable switch unit is carried out
Control, so that the every Vcom line ground connection of display screen, to carry out discharge treatment to each Vcom lines.
In order to realize that above-described embodiment, the application also propose a kind of terminal device.
The terminal device of the application includes：Display screen, memory, processor and storage are on a memory and can be in processor
The display control program of upper operation, wherein above-mentioned display control method is realized when display control program is executed by processor.
Wherein, terminal device can be the arbitrary hardware device with In-cell display screens, such as smart mobile phone, individual
Digital assistants (Personal Digital Assistant, referred to as PDA), tablet computer etc., the application does not make this to have
Body limits.
It should be noted that the explanation of the aforementioned display control method embodiment to display screen is also applied for the implementation
The terminal device of example, realization principle is similar, and details are not described herein again.
Terminal device provided in this embodiment first determines whether the current state of display screen, when display screen is currently at TP lines
When the end of scan carries out the gap before Vcom line scannings later, controllable switch unit is controlled, so that display screen is every
Bar Vcom lines ground connection, to carry out discharge treatment to each Vcom lines, quickly to eliminate the remnants electricity left after the TP line ends of scan
Lotus shows to effectively solve the problems, such as that subsequent display screen occurs screen flash and Flicker drifts when showing picture for display screen
Picture provides reliable guarantee, the very big use good opinion for improving user.
In this application unless specifically defined or limited otherwise, the terms such as term " setting ", " connection " should do broad sense reason
Solution, for example, it may be mechanical connection, can also be electrical connection；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, can be the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the application.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discuss suitable
Sequence, include according to involved function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be by the application
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the application can be realized with hardware, software, firmware or combination thereof.Above-mentioned
In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be executed with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, which includes the steps that one or a combination set of embodiment of the method when being executed.
Storage medium mentioned above can be read-only memory, disk or CD etc..Although having been shown and retouching above
Embodiments herein is stated, it is to be understood that above-described embodiment is exemplary, and should not be understood as the limit to the application
System, those skilled in the art can be changed above-described embodiment, change, replace and become within the scope of application
Type.
Claims (11)
1. a kind of display control unit of display screen, which is characterized in that the touch-control TP lines and common voltage Vcom of the display screen
Line time-sharing multiplex, the display control unit include：
Controllable switch unit, the controllable switch unit is for controlling whether the Vcom lines are grounded；
Display control chip, the display control chip after the TP lines end of scan for carrying out the Vcom lines scanning
The controllable switch unit is controlled in gap before, so that the every Vcom line ground connection of the display screen, with to every
A Vcom lines carry out discharge treatment.
2. the display control unit of display screen as described in claim 1, which is characterized in that the display screen includes a plurality of Vcom
Line, the controllable switch unit include：
The first end of multiple first controllable switches, each first controllable switch is correspondingly connected with every Vcom line, Mei Gesuo
The second end for stating the first controllable switch is connected together to constitute first node；
The first end of second controllable switch, second controllable switch is connected with the first node, second controllable switch
Second end ground connection, the control terminal of second controllable switch with each first controllable switch control terminal be connected after connect again
It is connected to the display control chip, wherein the display control chip opens control signal to described second controllable by output
Switch and each first controllable switch are closed with controlling second controllable switch and each first controllable switch
It closes.
3. the display control unit of display screen as claimed in claim 2, which is characterized in that first controllable switch and described
Second controllable switch is metal-oxide-semiconductor.
4. the display control unit of display screen as claimed in any one of claims 1-3, which is characterized in that the display control
Chip is also connected with every Vcom line respectively, and TP signals and Vcom signals are inputted to every Vcom line with timesharing.
5. the display control unit of display screen as claimed in any one of claims 1-3, which is characterized in that when the display screen
When being currently at blank screen gesture working condition, the display control chip is additionally operable to right after each end of scan of TP lines
The controllable switch unit is controlled, so that the every Vcom line ground connection of the display screen.
6. a kind of terminal device, which is characterized in that include the display control of the display screen as described in any one of claim 1-5
Device.
7. a kind of display control method of display screen, which is characterized in that the touch-control TP lines and common voltage Vcom of the display screen
Line time-sharing multiplex, the display screen further include the controllable switch unit whether being grounded for controlling the Vcom lines, the display
Control method includes the following steps：
Judge the current state of the display screen；
It is right when carrying out the gap before the Vcom lines scan after the display screen is currently at the TP lines end of scan
The controllable switch unit is controlled so that the display screen every Vcom line ground connection, with to each Vcom lines into
Row discharge treatment.
8. the display control method of display screen as claimed in claim 7, which is characterized in that the display screen includes a plurality of Vcom
Line, the controllable switch unit include multiple first controllable switches and the second controllable switch, each first controllable switch
First end is correspondingly connected with every Vcom line, and the second end of each first controllable switch is connected together to constitute first segment
The first end of point, second controllable switch is connected with the first node, the second end ground connection of second controllable switch, institute
The control terminal for stating the second controllable switch is connected with the control terminal of each first controllable switch, wherein to the controllable switch
Unit is controlled, including：
Control signal is opened by output to second controllable switch and each first controllable switch, to control described the
Two controllable switches and each first controllable switch are closed.
9. the display control method of display screen as claimed in claim 7 or 8, which is characterized in that when the display screen is currently located
When blank screen gesture working condition, also by being controlled to the controllable switch unit after each end of scan of TP lines
System, so that the every Vcom line ground connection of the display screen.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
When processor executes, display control method as claimed in any one of claims 7-9 is realized.
11. a kind of terminal device, which is characterized in that including display screen, memory, processor and be stored on the memory simultaneously
The display control program that can be run on a processor, wherein realized such as when the display control program is executed by the processor
Display control method described in any one of claim 7-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810178435.3A CN108717333A (en) | 2018-03-05 | 2018-03-05 | Display control unit, control method, the terminal device of display screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810178435.3A CN108717333A (en) | 2018-03-05 | 2018-03-05 | Display control unit, control method, the terminal device of display screen |
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