CN107886890A - Display panel circuit, the control method of display panel circuit and mobile terminal - Google Patents
Display panel circuit, the control method of display panel circuit and mobile terminal Download PDFInfo
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- CN107886890A CN107886890A CN201711465559.1A CN201711465559A CN107886890A CN 107886890 A CN107886890 A CN 107886890A CN 201711465559 A CN201711465559 A CN 201711465559A CN 107886890 A CN107886890 A CN 107886890A
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- tft
- film transistor
- thin film
- display panel
- circuit
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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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses the control method and mobile terminal of a kind of display panel circuit, display panel circuit, during solving powered-off fault, the residual charge in pixel capacitance cannot discharge in time, the problem of influenceing the display performance of display panel.The display panel circuit includes multirow grid line, multiple thin film transistor (TFT)s and control circuit, wherein, the drain electrode of each thin film transistor (TFT) is connected with a grid line respectively；The source electrode of each thin film transistor (TFT) is connected with high level signal line；The grid of each thin film transistor (TFT) is connected with the control circuit；The control circuit, detecting that each thin film transistor (TFT) of control turns on, also, controls the high level signal line to connect high level signal when meeting preset trigger condition.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of display panel circuit, the controlling party of display panel circuit
Method and mobile terminal.
Background technology
With the continuous development of Display Technique, the display being driven by thin film transistor (TFT), such as liquid crystal display,
Organic light emitting diode display etc., occupies leading position in display field.At present, increasing display uses
GOA circuits (Gate driver On Array, the driving of array base palte grid line) technology, to reduce the border width of display panel.
Fig. 1 is display panel circuit diagram of the prior art, and the display panel circuit mainly includes multirow grid line
101 ', multiple columns of data lines 102 ', drive IC (integrated circuit, integrated circuit) 103 ', GOA unit 104 ' and pixel
Circuit 105 ' etc., wherein, the thin film transistor (TFT) while a grid line 101 ' and a data wire that an image element circuit 105 ' passes through inside
102 ' connect simultaneously.
Each GOA unit 104 ' control a line grid line 101 ', the GOA unit 104 ' in Fig. 1 are simply schematically shown
Go out left and right two, be not shown in greater detail, GOA unit 104 ' can utilize the high level signal of lastrow grid line output
The electric capacity of its inside is charged, so that one's own profession grid line 101 ' exports high level, recycles the height electricity of the output of next line grid line 101 '
Ordinary mail number, which is realized, to be resetted.
In the prior art, in residual charge in pixel capacitance (CS in Fig. 1) in removing image element circuit 105 ', it is necessary to
First trip GOA unit 104 ' is opened successively to footline GOA unit 104 ', opens the film crystal in each row image element circuit 105 ' successively
Pipe, to realize releasing line by line for the residual charge in pixel capacitance, take longer.In powered-off fault, when being maintained due to sequential
Between it is shorter, have little time to carry out the electric charge removing method of above-mentioned progressive scan, easily cause charge residue, influence the aobvious of display panel
Show performance.
The content of the invention
The embodiment of the present invention provides a kind of display panel circuit, the control method and mobile terminal of display panel circuit, with
When solving powered-off fault, the residual charge in pixel capacitance cannot be discharged in time, and the display performance for influenceing display panel is asked
Topic.
In order to solve the above-mentioned technical problem, the present invention is realized in：
First aspect, there is provided a kind of display panel circuit, including multirow grid line, in addition to：Multiple thin film transistor (TFT)s and
Control circuit, wherein, the drain electrode of each thin film transistor (TFT) is connected with a grid line respectively；Each thin film transistor (TFT)
Source electrode be connected with high level signal line；The grid of each thin film transistor (TFT) is connected with the control circuit；It is described
Control circuit, detecting that each thin film transistor (TFT) of control turns on when meeting preset trigger condition, also, described in control
High level signal line connects high level signal.
Second aspect, there is provided a kind of mobile terminal, the mobile terminal include the display panel circuit of first aspect.
The third aspect, there is provided a kind of control method of such as display panel circuit of first aspect, including：Detect whether full
Sufficient preset trigger condition；If meeting preset trigger condition, control each thin film transistor (TFT) to turn on, also, control the high level
Signal wire connects high level signal.
Fourth aspect, there is provided a kind of mobile terminal, the mobile terminal include processor, memory and be stored in described deposit
On reservoir and the computer program that can run on the processor, realized when the computer program is by the computing device
The step of method as described in the third aspect.
A kind of 5th aspect, there is provided computer-readable recording medium, it is characterised in that the computer-readable storage medium
Computer program is stored in matter, the step of the method as described in the third aspect is realized when the computer program is executed by processor
Suddenly.
In the embodiment of the present invention, by connecting thin film transistor (TFT) on grid line, control circuit is detecting that satisfaction is default tactile
During clockwork spring part, you can each thin film transistor (TFT) conducting of control, also, control high level signal line to connect high level signal,
So, Kopin voltage can be connected on grid line after thin film transistor (TFT) conducting, turns on the thin film transistor (TFT) in image element circuit, from
And the residual charge in pixel capacitance is discharged by data wire, instantaneously the electric charge in pixel capacitance can all be removed simultaneously.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is display panel circuit diagram of the prior art；
Fig. 2 is display panel circuit diagram provided in an embodiment of the present invention；
Fig. 3 is close-up schematic view in display panel circuit shown in Fig. 2；
Fig. 4 is the control method schematic flow sheet of display panel circuit provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
The embodiment of the present invention provides a kind of display panel circuit, as shown in Fig. 2 Fig. 2 is provided in an embodiment of the present invention aobvious
Show panel circuit schematic diagram, the display panel circuit mainly includes multirow grid line 101, multiple columns of data lines 102, drives IC
(integrated circuit, integrated circuit) 103, GOA unit 104, image element circuit 105 etc., in the display panel circuit also
Include multiple thin film transistor (TFT)s 106, high level signal line 107, control line 108 and control circuit (not shown).
From an image element circuit 105 at Fig. 2 middle part as can be seen that image element circuit 105 includes thin film transistor (TFT) and (do not marked
Number), the thin film transistor (TFT) is controlled by the grid line 101 and vertical a data line 102 of transverse direction.In display panel work
When making, scanning drive signal is sent to the grid of thin film transistor (TFT) by grid line 101, and data wire 102 transmits video data signal
To the source electrode of thin film transistor (TFT), the voltage of image element circuit 105 is controlled with this, the control of image element circuit 105 is shown different face
Color.
Each GOA unit 104 drives a line grid line 101, and the GOA unit 104 in Fig. 2 simply shows schematically left and right
Two, it is not shown in greater detail.By taking the mobile phone of 60 hertz of screen refresh frequency as an example, the quantity of grid line 101 can be
1280 rows, it is necessary to be completed from the scanning of a line grid line 101 to the end of the first row grid line 101 when each frame picture is shown, take altogether about
16.67 milliseconds, often the opening time of row grid line 101 is about 13 microseconds, i.e. a GOA unit 104 carries inside every frame image time
The thin film transistor (TFT) of above-mentioned image element circuit 105 is opened for the high voltage signal of 13 microseconds, it is thin that other times offer closes this
The control voltage for controlling brightness, GTG, color can be passed through image element circuit by the low-voltage of film transistor, driving IC103 line by line
The passage that the source electrode of 105 thin film transistor (TFT) and drain electrode are formed enters in the picture element of image element circuit 105.In image element circuit 105, Cs
For storage capacitance, for keeping the charging voltage of pixel, charged next time so that the dispaly state of pixel continues to.
Below by the main improvement of the present embodiment：Thin film transistor (TFT) 106, high level signal line 107, control line 108
And control circuit describes in detail.In fig. 2, thin film transistor (TFT) 106 shows schematically 4 in left side, on right side
Also 4, in practical application are showed schematically, the quantity of thin film transistor (TFT) 106 can be equal with the quantity of grid line 101, i.e.,：
A line grid line 106, its one end are connected with the output end of a GOA unit, and the other end connects an above-mentioned thin film transistor (TFT) 106.
Control circuit can be integrated in the driving IC103 shown in Fig. 2, therefore is not shown in fig. 2, below will be to above-mentioned multiple films
Transistor 106, high level signal line 107, the annexation of control line 108 and control circuit are introduced.
Figure it is seen that the grid line 101 of even number of lines, its left side and the GOA unit 104 on the left of display panel
Connection, its right side are connected with the drain electrode of a thin film transistor (TFT) 106；
The grid line 101 of odd number line number, its right side are connected with the GOA unit 104 on the right side of display panel, its left side and one
The drain electrode connection of individual thin film transistor (TFT) 106.
Now, the GOA unit can be divided into the first GOA unit and the second GOA unit, first GOA unit and institute
State the both ends that the second GOA unit is located at display panel respectively, the grid line connection of first GOA unit and odd-numbered line, described the
The grid line of two GOA units and even number line connects, namely the GOA unit being connected with the grid line of odd-numbered line is located at the display panel
One end；The GOA unit being connected with the grid line of even number line is located at the other end of the display panel.
The source electrode of above-mentioned each thin film transistor (TFT) 106 is connected with high level signal line 107, in fig. 2, high level signal
The quantity of line 107 is two, and respectively positioned at the left and right sides of display panel, high level signal line 107 can connect high level letter
Number.A high level signal line 107 on the left of display panel, the source electrode with whole thin film transistor (TFT)s 106 on the left of display panel
Keep connection；A high level signal line 107 on the right side of display panel, with whole thin film transistor (TFT)s on the right side of display panel
106 source electrode keeps connecting.
The grid of above-mentioned each thin film transistor (TFT) 106 is connected by control line 108 with control circuit, in the embodiment,
The quantity of control line is two, i.e.,：In Fig. 2, whole thin film transistor (TFT)s 106 on the left of display panel, its grid passes through left side
A control line 108 be connected with control circuit；Whole thin film transistor (TFT)s 106 on the right side of display panel, its grid pass through the right side
Another control line 108 of side is connected with control circuit.
The above-mentioned control circuit being integrated in driving IC103, detect meet preset trigger condition when, such as meet pre-
If removal charge condition when, you can each thin film transistor (TFT) 106 of control turns on, also, controls the high level signal
Line 107 connects high level signal.
When controlling each conducting of the thin film transistor (TFT) 106, it can be connected on control line 108 and be more than thin film transistor (TFT)
The high level of 106 threshold voltage, you can each thin film transistor (TFT) 106 of control turns on.What high level signal line 107 was connected
High level, the threshold voltage of the thin film transistor (TFT) in image element circuit 105 is may be greater than, so, the film in image element circuit 105
Transistor can turn on, finally, the pixel capacitance C of image element circuit 105SInterior residual charge, you can pass through the number of vertical direction
Flowed out according to line 102, without progressive scanning technology of the prior art, in the pixel capacitance C of instantaneous i.e. controllable display panelSIt is interior
Residual charge whole removals.
In the embodiment of the present invention, control circuit can also control GOA unit 104 when detecting default trigger condition
Output end keep high-impedance state, with prevent the output end for high level and the GOA unit 104 connected on grid line 101 formation loop, make
Into the phenomenon of short circuit.The output end of GOA unit 104, referring to the Gate_out ports in Fig. 3, wherein, Fig. 3 is one in Fig. 2
The connection relationship diagram of GOA unit, an image element circuit and a thin film transistor (TFT).
When display panel is normally shown, control circuit can also control above-mentioned multiple thin film transistor (TFT)s 106 to keep blocking,
Disconnect voltage on control line 108, be prevented from that short circuit occurs, the presence of above-mentioned multiple thin film transistor (TFT)s 106, do not interfere with
The normal display of display panel.
In the embodiment of the present invention, by connecting thin film transistor (TFT) on grid line, control circuit is detecting that satisfaction is default tactile
During clockwork spring part, such as during removal charge condition, you can each thin film transistor (TFT) conducting of control, also, control high level letter
Number line connects high level signal, so, Kopin voltage can be connected on grid line after thin film transistor (TFT) conducting, is made in image element circuit
Thin film transistor (TFT) conducting so that the residual charge in pixel capacitance is discharged by data wire, without passing through GOA in the prior art
The progressive scan of unit removes charging techniques, instantaneously can be by pixel capacitance in the sequential in powered-off fault is held time
Electric charge all remove simultaneously.
Mobile terminal is when touch-control turns display, display turns touch-control；Either (such as 60HZ shows for different refreshing frequency conversion
Show and show conversion with 30HZ) when, it is required for removing the residual charge in pixel capacitance by black plug picture, avoids showing with this
Working condition before panel impacts to subsequent operating state.When in the prior art, due to one frame black plug picture of display,
GOA unit 104 scans completion from first trip grid line 101 to footline grid line 101 and takes around 16.67 milliseconds, often has little time to insert one
The black picture of frame.Based on above-mentioned display panel circuit provided in an embodiment of the present invention, the field of quick black plug picture can be applied in
Jing Zhong, specific implementation process are as follows：
Control circuit, detecting that each film of control is brilliant when meeting the condition needed for default black plug picture triggering
Body pipe 106 turns on, also, controls the high level signal line 107 to connect high level signal.So, in several gsecs i.e.
The thin film transistor (TFT) in the image element circuit 105 of display panel can be opened, meanwhile, the voltage of data wire 102 is set to black plug and drawn
Voltage (being typically about 0.3V or so) required for face, you can complete the operation of black plug picture in several microseconds, equally eliminate existing
There is the operation of progressive scan progress black plug picture in technology, greatly reduce the time required for black plug picture.
In the prior art, when display panel shows the picture of solid color, such as when only showing red, it is also desirable to GOA
Unit 104 controls grid line 101 to progressively scan, and opens the thin film transistor (TFT) in image element circuit 105 line by line, and on data wire 102
The value of voltage is constant.Based on above-mentioned display panel circuit provided in an embodiment of the present invention, display panel can be applied in
In the scene for showing pure color picture condition, specific implementation process is as follows：
Control circuit, detecting that control is each described thin when meeting the condition needed for default display pure color picture triggering
Film transistor 106 turns on, also, controls the high level signal line 107 to connect high level signal.So, in several gsecs
Thin film transistor (TFT) in the interior image element circuit 105 that can open display panel, meanwhile, the voltage of data wire 102 is set to aobvious
Show the voltage of pure color picture, only need to complete in 0.01 millisecond in theory, it is not necessary to 16.67 milliseconds；GOA unit simultaneously
104 working condition can close, consumption power consumption required for saving.
The display panel circuit provided based on the above embodiment of the present invention, can also set multiple control circuits, each control
Circuit processed, the grid connection for the thin film transistor (TFT) being connected respectively with the grid line of predetermined number.For example, the quantity of grid line is 1280
Root, control circuit can be two, the 1st to 640 grid line of first control circuit control display panel bottom；Second control
641st to 1280 grid line on circuit control display panel top processed, so as to which display panel is divided into two pieces up and down, realize flexible
Control the purpose of the residual charge in the display panel for different block numbers of releasing.
Based on above-mentioned control panel circuit provided in an embodiment of the present invention, the present invention also provides a kind of display panel circuit
Control method, apply in above-mentioned control panel circuit, Fig. 4 is the controlling party of display panel circuit provided in an embodiment of the present invention
Method schematic flow sheet, as shown in figure 4, the embodiment comprises the following steps：
S401：Detect whether to meet preset trigger condition；
Preset trigger condition in the embodiment, including：The default condition removed needed for electric charge triggering；Default black plug picture
The condition needed for condition or default display pure color picture triggering needed for triggering.
S402：If meeting preset trigger condition, control each thin film transistor (TFT) to turn on, also, control the high level letter
Number line connects high level signal.
In the embodiment of the present invention, by connecting thin film transistor (TFT) on grid line, control circuit is detecting that satisfaction is default tactile
During clockwork spring part, such as during removal charge condition, you can each thin film transistor (TFT) conducting of control, also, control high level letter
Number line connects high level signal, so, Kopin voltage can be connected on grid line after thin film transistor (TFT) conducting, is made in image element circuit
Thin film transistor (TFT) conducting so that the residual charge in pixel capacitance is discharged by data wire, without passing through GOA in the prior art
The progressive scan of unit removes charging techniques, instantaneously can all remove the electric charge in pixel capacitance simultaneously.
Based on above-mentioned control panel circuit provided in an embodiment of the present invention, it is preferred that the embodiment of the present invention also provides one kind
Mobile terminal, including processor, memory, the computer program that can be run on a memory and on the processor is stored,
The computer program realizes each process of the above method embodiment when being executed by processor, and can reach identical technology effect
Fruit, to avoid repeating, repeat no more here.
The embodiment of the present invention also provides a kind of computer-readable recording medium, and meter is stored with computer-readable recording medium
Calculation machine program, the computer program realize each process of the above method embodiment when being executed by processor, and can reach identical
Technique effect, to avoid repeating, repeat no more here.Wherein, described computer-readable recording medium, such as read-only storage
(Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic disc
Or CD etc..
Based on above-mentioned control panel circuit provided in an embodiment of the present invention, it is preferred that the embodiment of the present invention also provides one kind
Mobile terminal, includes the control panel circuit of above-described embodiment, and can reach identical technique effect, to avoid repeating, here
Repeat no more.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Other identical element also be present in the process of key element, method, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal (can be mobile phone, computer, service
Device, air conditioner, or network equipment etc.) perform method described in each embodiment of the present invention.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot
Form, belong within the protection of the present invention.
Claims (10)
1. a kind of display panel circuit, including multirow grid line, it is characterised in that also include：
Multiple thin film transistor (TFT)s and control circuit, wherein,
The drain electrode of each thin film transistor (TFT) is connected with a grid line respectively；
The source electrode of each thin film transistor (TFT) is connected with high level signal line；
The grid of each thin film transistor (TFT) is connected with the control circuit；
The control circuit, detecting that each thin film transistor (TFT) of control turns on when meeting preset trigger condition, also,
The high level signal line is controlled to connect high level signal.
2. circuit as claimed in claim 1, the display panel circuit also includes multiple GOA units, it is characterised in that
One end of each grid line and the output end of GOA unit connect；
The other end of each grid line is connected with the thin film transistor (TFT).
3. circuit as claimed in claim 2, it is characterised in that the GOA unit includes the first GOA unit and the 2nd GOA is mono-
Member, first GOA unit and second GOA unit are located at the both ends of display panel respectively, first GOA unit with it is strange
Several rows of grid line connection, the grid line connection of second GOA unit and even number line.
4. the circuit as described in any one of claims 1 to 3, it is characterised in that the preset trigger condition, including：
The default condition removed needed for electric charge triggering；Condition or default display pure color picture needed for default black plug picture triggering are touched
Condition needed for hair.
5. circuit as claimed in claim 1, it is characterised in that the control circuit to be multiple, each control circuit respectively with
The thin film transistor (TFT) connection that the grid line of predetermined number is connected.
6. a kind of mobile terminal, it is characterised in that including the display panel circuit as described in any one of claim 1 to 5.
A kind of 7. control method of display panel circuit as described in any one of claim 1 to 5, it is characterised in that including：
Detect whether to meet preset trigger condition；
If meeting preset trigger condition, each thin film transistor (TFT) is controlled to turn on, also, it is high to control the high level signal line to connect
Level signal.
8. method as claimed in claim 7, it is characterised in that the preset trigger condition, including：
The default condition removed needed for electric charge triggering；Condition or default display pure color picture needed for default black plug picture triggering are touched
Condition needed for hair.
A kind of 9. mobile terminal, it is characterised in that including：Memory, processor and it is stored on the memory and can be in institute
The computer program run on processor is stated, the computer program is realized such as claim 7 or 8 during the computing device
The step of described method.
10. a kind of computer-readable recording medium, it is characterised in that be stored with computer on the computer-readable recording medium
Program, the step of computer program realizes method as claimed in claim 7 or 8 when being executed by processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711465559.1A CN107886890A (en) | 2017-12-28 | 2017-12-28 | Display panel circuit, the control method of display panel circuit and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711465559.1A CN107886890A (en) | 2017-12-28 | 2017-12-28 | Display panel circuit, the control method of display panel circuit and mobile terminal |
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| CN201711465559.1A Pending CN107886890A (en) | 2017-12-28 | 2017-12-28 | Display panel circuit, the control method of display panel circuit and mobile terminal |
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