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 PDF

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Publication number
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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CN
China
Prior art keywords
circuit
tft
film transistor
thin film
display panel
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Pending
Application number
CN201711465559.1A
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Chinese (zh)
Inventor
文亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to CN201711465559.1A priority Critical patent/CN107886890A/en
Publication of CN107886890A publication Critical patent/CN107886890A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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

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

Display panel circuit, the control method of display panel circuit and mobile terminal
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.
CN201711465559.1A 2017-12-28 2017-12-28 Display panel circuit, the control method of display panel circuit and mobile terminal Pending CN107886890A (en)

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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CN107886890A true CN107886890A (en) 2018-04-06

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Publication number Priority date Publication date Assignee Title
CN101174038A (en) * 2006-11-01 2008-05-07 群康科技(深圳)有限公司 LCD device
CN101882416A (en) * 2010-06-21 2010-11-10 友达光电股份有限公司 Display device and ghost eliminating method thereof
CN102651206A (en) * 2011-02-23 2012-08-29 三星电子株式会社 Display panel and display apparatus having the same
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