CN105513528B - Capacitor compensating circuit, display base plate, display device and capacitance compensation method - Google Patents
Capacitor compensating circuit, display base plate, display device and capacitance compensation method Download PDFInfo
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- CN105513528B CN105513528B CN201610080599.3A CN201610080599A CN105513528B CN 105513528 B CN105513528 B CN 105513528B CN 201610080599 A CN201610080599 A CN 201610080599A CN 105513528 B CN105513528 B CN 105513528B
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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
- G09G3/2085—Special arrangements for addressing the individual elements of the matrix, other than by driving respective rows and columns in combination
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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
- G09G3/2085—Special arrangements for addressing the individual elements of the matrix, other than by driving respective rows and columns in combination
- G09G3/2088—Special arrangements for addressing the individual elements of the matrix, other than by driving respective rows and columns in combination with use of a plurality of processors, each processor controlling a number of individual elements of the matrix
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Abstract
The present invention provides a kind of capacitor compensating circuit, display base plate, display device and capacitance compensation method, the capacitor compensating circuit includes control unit and at least one capacitance compensation unit；Wherein, it needs to carry out one group of signal wire of capacitance compensation in each default substrate of capacitance compensation unit connection；Described control unit is used to carry out capacitance compensation according to the signal wire that first control signal controls corresponding capacitance compensation unit pair to connect with the capacitance compensation unit；Wherein, the first control signal is according to the control signal for needing to carry out the signal wire of capacitance compensation and the size of corresponding capacitance compensation value determines in the default substrate.Capacitor compensating circuit provided by the invention realizes the purpose by controlling external capacitive compensation circuit as corresponding signal line progress capacitance compensation.
Description
Technical field
The present invention relates to display technology fields, and in particular to a kind of capacitor compensating circuit, display base plate, display device and electricity
Hold compensation method.
Background technology
At present, with the continuous improvement of display panel technology, the application range of display panel also becomes more and more extensive, together
When display panel shape also become varied, be no longer limited to fixed regular shape.Such as on some wearable devices
Display panel be special-shaped display panel.
These special-shaped display panels are due to scrambling in shape so that the length of the data line of display panel is uneven
Deng since the driving time needed for the data line of different length has differences, it is therefore desirable to data line carry out resistance R values and/
Or the compensation of capacitance C values, to ensure the consistency of display panel charge inside time, and then ensure the display picture of display panel
Quality.
Usually, the compensation of R values can generally be solved by way of coiling in panel, but C values can not often obtain
Ideal compensation.
Invention content
For the defects in the prior art, the present invention provides a kind of capacitor compensating circuit, display base plate, display device and electricity
Hold compensation method, realize the purpose by controlling external capacitive compensation circuit as corresponding signal line progress capacitance compensation.
In order to solve the above technical problems, the present invention provides following technical scheme：
In a first aspect, the present invention provides a kind of capacitor compensating circuit, including control unit and at least one capacitance compensation
Unit；Wherein, it needs to carry out one group of signal wire of capacitance compensation in each default substrate of capacitance compensation unit connection；
Described control unit is used to control corresponding capacitance compensation unit pair and the capacitance compensation according to first control signal
The signal wire of unit connection carries out capacitance compensation；
Wherein, the first control signal be according to needed in the default substrate carry out capacitance compensation signal wire and
The control signal that the size of corresponding capacitance compensation value determines.
Further, the capacitance compensation unit, including at least one capacitance compensation group, the capacitance compensation group includes one
A control switch and a capacitance；
Correspondingly, described control unit is used to the control in capacitance compensation group be controlled to switch according to the first control signal
Opening and closing, the signal wire that the capacitance pair in corresponding capacitance compensation group connect with the capacitance compensation unit to be controlled to carry out capacitance benefit
It repays.
Further, when the capacitance compensation unit includes multiple capacitance compensation groups, described control unit is used for basis
The first control signal controls all or part of capacitance compensation group pair and the capacitance compensation in the capacitance compensation unit
The signal wire of unit connection carries out capacitance compensation.
Further, when the capacitor compensating circuit includes multiple capacitance compensation units, two neighboring capacitance compensation list
Connecting valve is provided between member；Wherein, the capacitance compensation unit of the first end connection of the connecting valve is upper level capacitance
Compensating unit, the capacitance compensation unit of second end connection is next stage capacitance compensation unit；
Correspondingly, control section corresponding with the connecting valve has been further included in the first control signal；
Described control unit is additionally operable to control the opening and closing of corresponding connecting valve according to the first control signal, with control
The next stage capacitance compensation unit and upper level capacitance compensation unit of the connecting valve are upper with the connecting valve jointly
The signal wire of level-one capacitance compensation unit connection carries out capacitance compensation.
Further, the number of the capacitance compensation unit is odd number.
Further, the number of the capacitance compensation unit is 3.
Second aspect, the present invention also provides a kind of display base plate, including the capacitor compensating circuit described in any of the above item.
The third aspect, the present invention also provides a kind of display device, including display base plate recited above.
Fourth aspect, the present invention also provides a kind of capacitor compensating circuits using described in any of the above item to carry out capacitance benefit
The method repaid, including：
It is determined according to the signal wire of progress capacitance compensation and the size of corresponding capacitance compensation value is needed in default substrate
First control signal；
The first control signal is written in described control unit so that described control unit is according to the described first control
The signal wire that signal controls corresponding capacitance compensation unit pair to be connect with the capacitance compensation unit carries out capacitance compensation.
Further, the capacitance compensation unit, including at least one capacitance compensation group, the capacitance compensation group includes one
A control switch and a capacitance；
Correspondingly, it is described by the first control signal be written described control unit in so that described control unit according to
The signal wire that the first control signal controls corresponding capacitance compensation unit pair to be connect with the capacitance compensation unit carries out capacitance
Compensation, including：
The first control signal is written in described control unit so that described control unit is according to the described first control
Signal controls the opening and closing of the control switch in the capacitance compensation group in corresponding capacitance compensation unit, to control corresponding capacitance compensation
The signal wire that capacitance pair in group is connect with the capacitance compensation unit carries out capacitance compensation.
Further, it is described that the first control signal is written in described control unit so that described control unit root
The opening and closing that the control in the capacitance compensation group in corresponding capacitance compensation unit is controlled to switch according to the first control signal, with control
The signal wire that capacitance pair in the corresponding capacitance compensation group of system is connect with the capacitance compensation unit carries out capacitance compensation, including：
The first control signal is written in described control unit so that described control unit is according to the described first control
Signal switches on/turns off voltage progress to what preset DC-DC module provided for the control in each capacitance compensation group
Modulation is integrated, and capacitance benefit is carried out with the signal wire that the capacitance pair in the corresponding capacitance compensation group of control is connect with the capacitance compensation unit
It repays.
Further, it is correspondingly, described by described first when the capacitance compensation unit includes multiple capacitance compensation groups
It controls in signal write-in described control unit so that described control unit controls corresponding capacitance according to the first control signal
The signal wire that compensating unit pair is connect with the capacitance compensation unit carries out capacitance compensation, including：
The first control signal is written in described control unit so that described control unit is according to the described first control
All or part of capacitance compensation group pair is connect with the capacitance compensation unit in the corresponding capacitance compensation unit of signal control
Signal wire carries out capacitance compensation.
Further, when the capacitor compensating circuit includes multiple capacitance compensation units and two neighboring capacitance compensation unit
Between when being provided with connecting valve, the capacitance compensation unit of the first end connection of the connecting valve is upper level capacitance compensation list
Member, the capacitance compensation unit of second end connection is next stage capacitance compensation unit；
Correspondingly, control section corresponding with the connecting valve has been further included in the first control signal；
Correspondingly, it is described by the first control signal be written described control unit in so that described control unit according to
The signal wire that the first control signal controls corresponding capacitance compensation unit pair to be connect with the capacitance compensation unit carries out capacitance
Compensation, further includes：
The first control signal is written in described control unit so that described control unit is according to the described first control
Signal controls the opening and closing of corresponding connecting valve, to control the next stage capacitance compensation unit of the connecting valve and upper level electricity
Hold the signal wire that compensating unit connects jointly for the upper level capacitance compensation unit of the connecting valve and carry out capacitance compensation.
As shown from the above technical solution, capacitor compensating circuit of the present invention, display base plate, display device and capacitance are mended
Compensation method realizes the purpose by controlling external capacitive compensation circuit as corresponding signal line progress capacitance compensation, so as to solve
The problem of C values of signal wire can not obtain ideal compensation in the prior art.Wherein, the different letter of length in special-shaped display panel
Number line has fully ensured that the consistency in each signal wire charging time inside special-shaped display panel, Jin Erti after capacitance compensation
The high display quality of display panel.
Description of the drawings
It, below will be to embodiment or existing skill in order to illustrate more clearly of the present embodiment or technical solution of the prior art
Attached drawing is briefly described needed in art description, it should be apparent that, the accompanying drawings in the following description is the one of the present invention
A little embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the structure diagram for the capacitor compensating circuit that first embodiment of the invention provides；
Fig. 2 is the structure diagram for the capacitor compensating circuit that second embodiment of the invention provides；
Fig. 3 is the structure diagram for the capacitor compensating circuit that third embodiment of the invention provides；
Fig. 4 is a kind of structure diagram for capacitor compensating circuit that four embodiment of the invention provides；
Fig. 5 is the structure diagram for another capacitor compensating circuit that four embodiment of the invention provides；
Fig. 6 is the flow chart for the capacitance compensation method that seventh embodiment of the invention provides；
Fig. 7 is the flow chart for the capacitance compensation method that eighth embodiment of the invention provides；
Fig. 8 is the flow chart for the capacitance compensation method that ninth embodiment of the invention provides；
Fig. 9 is the flow chart for the capacitance compensation method that tenth embodiment of the invention provides；
Figure 10 is the flow chart for the capacitance compensation method that eleventh embodiment of the invention provides.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, clear, complete description is carried out to the technical solution in the embodiment of the present invention, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without creative efforts shall fall within the protection scope of the present invention.
Fig. 1 shows the structure diagram for the capacitor compensating circuit that first embodiment of the invention provides, referring to Fig. 1, sheet
The capacitor compensating circuit that embodiment provides, including：Control unit 10 and at least one capacitance compensation unit 20；Wherein, Mei Gesuo
Stating needs to carry out one group of signal wire of capacitance compensation in the default substrate of the connection of capacitance compensation unit 20；
Described control unit 10 is used for according to 20 pairs of the corresponding capacitance compensation unit of first control signal control and the capacitance
The signal wire that compensating unit 20 connects carries out capacitance compensation；
Wherein, the first control signal be according to needed in the default substrate carry out capacitance compensation signal wire and
The control signal that the size of corresponding capacitance compensation value determines.
Preferably, the number of the capacitance compensation unit is odd number.Due between the adjacent signals line in display panel
There is capacitance, so when carrying out capacitance compensation debugging, need to consider the influence of the capacitance between adjacent signal wire, so
Preferably, odd number capacitance compensation unit is introduced, such as introduces the capacitance compensation list of the odd numbers number such as 3,5,7 or 9
Member.Since attached drawing space is limited, following embodiments are introduced by taking three capacitance compensation units as an example.
Capacitor compensating circuit described in the present embodiment, it is corresponding signal line to realize by controlling external capacitive compensation circuit
The purpose of capacitance compensation is carried out, so as to which the C values for solving the problems, such as signal wire in the prior art can not obtain ideal compensation.Its
In, the different signal wire of length has fully ensured that each inside special-shaped display panel after capacitance compensation in special-shaped display panel
The consistency in signal wire charging time, and then improve the display quality of display panel.
In addition, the present embodiment considers the influence of the capacitance between adjacent signal wire, the capacitance compensation of odd number number is introduced
Unit, therefore the influence of the capacitance between adjacent signals line can be minimized.
In second embodiment of the invention, referring to Fig. 2, a kind of specific electricity of above-mentioned capacitance compensation unit 20 is given
Line structure.
Specifically, the capacitance compensation unit 20 includes at least one capacitance compensation group 201, the capacitance compensation group 201
Including a control switch and a capacitance；The control switchs to control whether the capacitance participates in capacitance compensation；Wherein,
When capacitance compensation unit 20 includes multiple capacitance compensation groups 201, between multiple capacitance compensation groups 201 can be series connection and/or
Circuit connecting relation in parallel.In addition, capacitance in multiple capacitance compensation groups can in series and/or in parallel mode to original letter
Capacitance in number line compensates.For example, with reference to Fig. 3, wherein each dotted box portion represents a capacitance compensation group.In Fig. 3
Each capacitance compensation unit includes 3 capacitance compensation groups.
Correspondingly, described control unit 10 is used to control the control in capacitance compensation group 201 according to the first control signal
The opening and closing of switch is made, with the signal wire that the capacitance pair in corresponding capacitance compensation group 201 is controlled to be connect with the capacitance compensation unit 20
Carry out capacitance compensation.
In third embodiment of the invention, referring to Fig. 3, give when the capacitance compensation unit is mended including multiple capacitances
When repaying group, the circuit relationships of the control mode of described control unit and multiple capacitance compensation groups.
Specifically, when the capacitance compensation unit includes multiple capacitance compensation groups, described control unit is used for according to institute
It states first control signal and controls all or part of capacitance compensation group pair and the capacitance compensation list in the capacitance compensation unit
The signal wire of member connection carries out capacitance compensation.Wherein, the first control signal is needs to carry out according in the default substrate
The control signal that the size of the signal wire of capacitance compensation and corresponding capacitance compensation value determines.
Such as shown in Fig. 3, in this embodiment, capacitor compensating circuit is divided into three capacitance compensation units, D1, D2 and D3,
Wherein D1, D2, D3 are connected respectively to three groups of source signal lines, when the smaller (initial capacitance of the capacitance of corresponding source signal line
It is worth for C0) when, by taking D1 as an example, Q1 is controlled to open by control unit, C1 accesses parallel connection at this time, at this time corresponding source signal
The capacitance of line becomes C0+C1, can be with if the capacitance of the source signal line still has differences with other signal wires at this time
Q9 is controlled to open by control unit, the capacitance of corresponding source signal line becomes at this time：
C0+C1+C7；
If it can be controlled by control unit with ratio there is still a need for trimmer at this time and open Q6, at this time corresponding source
The capacitance of pole signal wire becomes：
From above-mentioned formula as can be seen that by the C4 of different capacitances can finer adjustment compensating electric capacity capacitance,
In addition Q9 can also be closed or be opened according to practical compensation situation selection, and this method can give corresponding source signal line
The calculating selection of 4 kinds of compensating electric capacities is provided.Certainly, Fig. 3 is merely illustrative, and the number of wherein capacitance compensation group is not limited to figure
Shown in 3, the capacitance compensation group of more number can also be arranged as required to, to realize the essence to corresponding source signal line
True capacitance compensation.
In four embodiment of the invention, referring to Fig. 4, it is a certain group of signal jointly to give multiple capacitance compensation units
Line carries out the example of capacitance compensation.Specifically, when the capacitor compensating circuit includes multiple capacitance compensation units 20, adjacent two
Connecting valve 30 is provided between a capacitance compensation unit 20；Wherein, the capacitance of the first end connection of the connecting valve 30 is mended
Unit is repaid as upper level capacitance compensation unit, the capacitance compensation unit of second end connection is next stage capacitance compensation unit；
Correspondingly, it has been further included in the first control signal and the 30 corresponding control section of connecting valve；
Described control unit 10 is additionally operable to control the opening and closing of corresponding connecting valve 30 according to the first control signal, with
Control the connecting valve 30 next stage capacitance compensation unit 20 and upper level capacitance compensation unit 20 jointly be and the company
Connect the signal wire progress capacitance compensation that the upper level capacitance compensation unit 20 of switch 30 connects.
Certainly, it is not that setting connecting valve 30 is required between each two capacitance compensation unit 20, in practical application,
It can be arranged as required to connecting valve 30.
Referring to Fig. 5, connecting valve Q4 and Q5 are added among three groups of capacitance compensation units, this just gives electricity shown in fig. 5
Hold compensation circuit and more compensate selection.Such as D1, D2, D3 are connected to three groups of signal wires n-1, n, n+1 respectively, this three groups of signals
The capacitance relation of line is Cn>Cn+1>Cn-1, the purpose compensated at this time is by Cn-1With Cn+1Capacitance compensation to and CnIt is close, at this time
Suitable compensating electric capacity can not be found according to the method described in above-mentioned third embodiment, then can be controlled by control unit
Q2 closes Q4 and opens, at this time Cn-1The capacitance for just having 4*4 (16) kind compensation calculates selection.
Specifically, it is assumed that above-mentioned each control switch and connecting valve are realized using NMOS transistor, in above-mentioned capacitance compensation
During the specific implementation of circuit, voltage is switched on and off by what DC-DC module was responsible for generating each NMOS transistor switch.It is described
Control unit controls the opening and closing of corresponding control switch and connecting valve according to first control signal, to realize to corresponding signal
The capacitance compensation of line.Wherein, first control signal be according to needed in the default substrate carry out capacitance compensation signal wire with
And the control signal that the size of corresponding capacitance compensation value determines.The first control signal can be carried out defeated by host computer
Enter, can also be automatically generated by host computer.After described control unit receives the first control signal, by DC-DC module
The on/off voltage of offer is modulated integration and exports, to realize the function of number regulation and control.
In the present embodiment, using connecting valve, the capacitance compensation for corresponding signal line provides more compensation selections,
Avoiding single capacitance compensation unit can not the careful situation for adjusting or accurately compensating.
Fifth embodiment of the invention provides a kind of display base plate, is mended including the capacitance as described in any embodiment above
Repay circuit.Wherein, the display base plate described in the present embodiment is special-shaped display base plate or regular display base plate.
Display base plate provided in this embodiment, due to including the capacitor compensating circuit described in above-described embodiment, this reality
The display base plate described in example is applied, there is capacitance compensation, thereby may be ensured that the display base plate internal signal wire charging time
Consistency, and then improve the quality that special-shaped display panel shows picture.
Sixth embodiment of the invention provides a kind of display device, including the display base plate as described in above example.
Display device provided in this embodiment, due to containing the display base plate described in above-described embodiment, this implementation
Display device described in example, has the function of capacitance compensation, thereby may be ensured that the one of display device internal signal wire charging time
Cause property, and then improve the display image quality of display device.
Wherein, the display device described in the present embodiment can be Electronic Paper, mobile phone, tablet computer, video camera, camera,
Any product or component with display function such as television set, Digital Frame and navigator.
Seventh embodiment of the invention provides a kind of capacitor compensating circuit using described in any of the above-described embodiment and carries out
The method of capacitance compensation, referring to Fig. 6, this method comprises the following steps：
Step 101：According to the signal wire and corresponding capacitance compensation value that progress capacitance compensation is needed in default substrate
Size determines first control signal.
In this step, for example, see Fig. 3, the signal wire preset on substrate is signal wire n-1, signal wire n, signal wire n+
1；The capacitance relation of this three groups of signal wires is Cn>Cn+1>Cn-1, the purpose compensated at this time is by Cn-1With Cn+1Capacitance compensation extremely
With CnIt is close, it is assumed that CnCapacitance be 18, Cn+1Capacitance be 14, Cn-1Capacitance be 10, then in this step, according to
Need the signal wire C of progress capacitance compensationn+1With Cn-1And the size 4 and 8 of corresponding capacitance compensation value, determine that the first control is believed
Number, wherein, first control signal be for control the capacitance compensation cells D 3 that is connected with signal wire n+1 to signal wire n+1 into
Row capacitance compensation, capacitance compensation value are 4, at the same the capacitance compensation cells D 1 that is connected with signal wire n-1 of control to signal wire n-1 into
Row capacitance compensation, capacitance compensation value are 8 control signal.
Step 102：The first control signal is written in described control unit so that described control unit is according to
The signal wire that first control signal controls corresponding capacitance compensation unit pair to be connect with the capacitance compensation unit carries out capacitance compensation.
In this step, the first control signal that control unit is determined according to step 101, control are connected with signal wire n+1
Capacitance compensation cells D 3 capacitance compensation and the capacitance compensation unit that is connected with signal wire n-1 of control are carried out to signal wire n+1
D1 carries out capacitance compensation to signal wire n-1.
Capacitance compensation method described in the present embodiment, it is corresponding signal line to realize by controlling external capacitive compensation circuit
The purpose of capacitance compensation is carried out, the C values for solving the problems, such as signal wire in the prior art can not obtain ideal compensation.Wherein, it is different
The different signal wire of length ensure that each signal wire charging inside special-shaped display panel after capacitance compensation in shape display panel
The consistency of time, and then improve the display quality of display panel.
In eighth embodiment of the invention, the capacitance compensation unit, including at least one capacitance compensation group, the electricity
Hold compensation group and include a control switch and a capacitance；
Correspondingly, referring to Fig. 7, the first control signal is written in described control unit the step 102 so that institute
It states control unit and controls what corresponding capacitance compensation unit pair was connect with the capacitance compensation unit according to the first control signal
It is specially following step 102 ' that signal wire, which carries out capacitance compensation,.
Step 102 '：The first control signal is written in described control unit so that described control unit is according to institute
The opening and closing for the control switch that first control signal is controlled in the capacitance compensation group in corresponding capacitance compensation unit is stated, with control pair
The signal wire that the capacitance pair in capacitance compensation group is connect with the capacitance compensation unit is answered to carry out capacitance compensation.
In the present embodiment, by controlling opening for the control switch in the capacitance compensation group in corresponding capacitance compensation unit
It closes, capacitance compensation is carried out with the signal wire that the capacitance pair in the corresponding capacitance compensation group of control is connect with the capacitance compensation unit.
Referring to Fig. 3, it is assumed that capacitance compensation unit needs D1 to carry out capacitance compensation to signal wire n-1, and offset is 8, letter
The initial capacitance value of number line n-1 is C0=10, it is also known that C1=6, C7=2.So first control signal will include control
C1 and C7 participates in the control section of capacitance compensation.Referring to Fig. 3 it is found that first control signal will include control Q1 openings, Q9 is opened
Control section.When described control unit controls Q1 to open according to the first control signal, after Q9 is opened, signal wire n- at this time
1 capacitance becomes C0+C1+C7, that is, becomes 18, so as to complete the requirement of preset capacitance compensation.
Further, in ninth embodiment of the invention, institute is written in the first control signal by above-mentioned steps 102 '
It states in control unit so that described control unit controls the electricity in corresponding capacitance compensation unit according to the first control signal
Hold the opening and closing of the control switch in compensation group, connect with the capacitance pair in the corresponding capacitance compensation group of control with the capacitance compensation unit
Signal wire carry out capacitance compensation, specifically include：
The first control signal is written in described control unit so that described control unit is according to the described first control
Signal switches on/turns off voltage progress to what preset DC-DC module provided for the control in each capacitance compensation group
Modulation is integrated, and capacitance benefit is carried out with the signal wire that the capacitance pair in the corresponding capacitance compensation group of control is connect with the capacitance compensation unit
It repays.
Referring to Fig. 3 and Fig. 8, in the present embodiment, NMOS switch realization may be used in control switch, and DC-DC module is responsible for
Generate NMOS switch is switched on and off voltage；The capacitor compensating circuit of the present embodiment includes control port, such as control terminal
Mouth includes host computer interface, can pass through this control port and input first control signal；In addition, above-mentioned control unit may be used
Logic controller is realized, after logic controller receives first control signal, on/off voltage that DC-DC module is provided
It is modulated integration and exports, to realize the function of number regulation and control, control capacitance pair and the capacitance in corresponding capacitance compensation group
The signal wire of compensating unit connection carries out capacitance compensation.Such as by taking capacitor compensating circuit illustrated in fig. 3 as an example, one is given
Specific control flow schematic diagram.
In tenth embodiment of the invention, the capacitance compensation unit includes multiple capacitance compensation groups；Correspondingly, referring to
The first control signal is written in described control unit for Fig. 9, the step 102 so that described control unit is according to
The signal wire that first control signal controls corresponding capacitance compensation unit pair to be connect with the capacitance compensation unit carries out capacitance compensation
Specially following step 102 ".
Step 102 "：The first control signal is written in described control unit so that described control unit is according to institute
It states first control signal and controls all or part of capacitance compensation group pair and the capacitance compensation in corresponding capacitance compensation unit
The signal wire of unit connection carries out capacitance compensation.
In the present embodiment, needs are compensated according to actual capacitance, can control in corresponding capacitance compensation unit part or
The signal wire that whole capacitance compensation groups pair is connect with the capacitance compensation unit carries out capacitance compensation.For example, signal wire n-1
Initial capacitance value is C0=10, and target capacitance value is 16, then capacitance compensation cells D 1 is needed to carry out capacitance benefit to signal wire n-1
It repays.Known C1=6, C7=2, C4=3.So first control signal will include the control unit that control C1 participates in capacitance compensation
Point.After described control unit controls Q1 to open according to the first control signal, the capacitance of signal wire n-1 becomes C0 at this time
+ C1 becomes 16, so as to complete the requirement of preset capacitance compensation.
For another example, the initial capacitance value of signal wire n-1 is C0=10, and target capacitance value is 18, then needs capacitance compensation list
First D1 carries out capacitance compensation to signal wire n-1.Known C1=6, C7=2, C4=3.So first control signal will include control
C1 and C7 processed participate in the control section of capacitance compensation.When described control unit according to the first control signal control Q1 open,
After Q9 is opened, the capacitance of signal wire n-1 becomes C0+C1+C7 at this time, that is, becomes 18, so as to complete preset capacitance compensation
It is required that.
For another example, the initial capacitance value of signal wire n-1 is C0=10, and target capacitance value is 14, then needs capacitance compensation list
First D1 carries out capacitance compensation to signal wire n-1.Known C1=6, C7=2, C4=3.So first control signal will include control
C1, C4 and C7 processed participate in the control section of capacitance compensation.Referring to Fig. 3 it is found that first control signal will include control Q1 openings, Q6
It opens, the control section that Q9 is opened.When described control unit controls Q1 to open according to the first control signal, Q6 is opened, Q9
After opening, the capacitance of signal wire n-1 becomes at this timeBecome 14, so as to complete preset electricity
Hold compensation requirement.
As it can be seen that when the capacitance compensation unit includes multiple capacitance compensation groups, described control unit is according to described first
Control signal that all or part of capacitance compensation group pair in corresponding capacitance compensation unit is controlled to connect with the capacitance compensation unit
The signal wire connect carries out capacitance compensation.Wherein first control signal is according to needing in the default substrate to carry out capacitance compensation
Circuit in signal wire and the size of corresponding capacitance compensation value and capacitance compensation unit between multiple capacitance compensation groups connects
The control signal that the capacitance size of capacitance determines in binding structure (serial or parallel connection) and each capacitance compensation group.
In eleventh embodiment of the invention, the capacitor compensating circuit includes multiple capacitance compensation units and adjacent two
Connecting valve is provided between a capacitance compensation unit, the capacitance compensation unit of the first end connection of the connecting valve is upper one
Grade capacitance compensation unit, the capacitance compensation unit of second end connection is next stage capacitance compensation unit；
Correspondingly, control section corresponding with the connecting valve has been further included in the first control signal；
Correspondingly, referring to Figure 10, the first control signal is written in described control unit the step 102 so that
Described control unit controls corresponding capacitance compensation unit pair to be connect with the capacitance compensation unit according to the first control signal
Signal wire carry out capacitance compensation in addition to including above-mentioned steps 102 ' and/or step 102 " other than, further include following step 102a.
Step 102a：The first control signal is written in described control unit so that described control unit is according to institute
The opening and closing that first control signal controls corresponding connecting valve is stated, to control the next stage capacitance compensation unit of the connecting valve
The signal wire connected jointly for the upper level capacitance compensation unit of the connecting valve with upper level capacitance compensation unit carries out electricity
Hold compensation.
In the present embodiment, using connecting valve, the capacitance compensation for corresponding signal line provides more compensation selections,
Avoiding single capacitance compensation unit can not the careful situation for adjusting or accurately compensating.
For example, with reference to Fig. 5, it is assumed that the initial capacitance value of signal wire n-1 is C0=10, and target capacitance value is 15, then is needed
Capacitance compensation cells D 1 is wanted to carry out capacitance compensation to signal wire n-1.Known C1=6, C7=2, C4=3, C2=1.Due to letter
The getable immediate offset of capacitance compensation cells D 1 that number line n-1 is connected isIt is i.e. single
Capacitance compensation unit can not realize the accurate compensation to signal wire n-1.The connecting valve Q4 between D1 and D2 can be beaten at this time
It opens so that capacitance compensation cells D 2 and capacitance compensation cells D 1 cooperatively carry out capacitance compensation for signal wire n-1.So first
Control signal will include control C1, C4, C7 and C2 participate in capacitance compensation control section and with connecting valve Q4 and control
Switch the corresponding control sections of Q2.Referring to Fig. 5 it is found that first control signal will include control Q1 openings, Q6 is opened, and Q9 is opened,
Q4 is opened, the control section that Q2 is closed.When described control unit controls Q1 to open according to the first control signal, Q6 is opened,
Q9 is opened, and Q4 is opened, and after Q2 is closed, the capacitance of signal wire n-1 becomes at this timeBecome 15,
So as to complete the requirement of preset capacitance compensation.
Above example is merely to illustrate technical scheme of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example modifies or carries out equivalent replacement to which part technical characteristic；And these are changed or replace
It changes, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (13)
1. a kind of capacitor compensating circuit, which is characterized in that including control unit and at least one capacitance compensation unit；Wherein, often
It needs to carry out one group of signal wire of capacitance compensation in a default substrate of capacitance compensation unit connection；
Described control unit is used to control corresponding capacitance compensation unit pair and the capacitance compensation unit according to first control signal
The signal wire of connection carries out capacitance compensation；
Wherein, the first control signal is according to the signal wire and correspondence that progress capacitance compensation is needed in the default substrate
Capacitance compensation value the control signal that determines of size.
2. capacitor compensating circuit according to claim 1, which is characterized in that the capacitance compensation unit, including at least one
A capacitance compensation group, the capacitance compensation group include a control switch and a capacitance；
Correspondingly, described control unit is used to control opening for the control switch in capacitance compensation group according to the first control signal
It closes, capacitance compensation is carried out with the signal wire that the capacitance pair in corresponding capacitance compensation group is controlled to be connect with the capacitance compensation unit.
3. capacitor compensating circuit according to claim 2, which is characterized in that when the capacitance compensation unit includes multiple electricity
When holding compensation group, described control unit is used to be controlled according to the first control signal partly or complete in the capacitance compensation unit
The signal wire that the capacitance compensation group pair in portion is connect with the capacitance compensation unit carries out capacitance compensation.
4. capacitor compensating circuit described in any one of claim 1 to 3, which is characterized in that when capacitance compensation electricity
When road includes multiple capacitance compensation units, connecting valve is provided between two neighboring capacitance compensation unit；Wherein, the connection
The capacitance compensation unit of the first end connection of switch is upper level capacitance compensation unit, and the capacitance compensation unit of second end connection is
Next stage capacitance compensation unit；
Correspondingly, control section corresponding with the connecting valve has been further included in the first control signal；
Described control unit is additionally operable to control the opening and closing of corresponding connecting valve according to the first control signal, with described in control
The next stage capacitance compensation unit and upper level capacitance compensation unit of connecting valve are jointly the upper level with the connecting valve
The signal wire of capacitance compensation unit connection carries out capacitance compensation.
5. capacitor compensating circuit according to claim 1, which is characterized in that the number of the capacitance compensation unit is strange
Number.
6. capacitor compensating circuit according to claim 5, which is characterized in that the number of the capacitance compensation unit is 3.
7. a kind of display base plate, which is characterized in that including capacitor compensating circuit such as according to any one of claims 1 to 6.
8. a kind of display device, which is characterized in that including display base plate as claimed in claim 7.
9. a kind of method for carrying out capacitance compensation using capacitor compensating circuit such as according to any one of claims 1 to 6, special
Sign is, including：
First is determined according to the signal wire of progress capacitance compensation and the size of corresponding capacitance compensation value is needed in default substrate
Control signal；
The first control signal is written in described control unit so that described control unit is according to the first control signal
The signal wire that corresponding capacitance compensation unit pair is connect with the capacitance compensation unit is controlled to carry out capacitance compensation.
10. according to the method described in claim 9, it is characterized in that, the capacitance compensation unit, is mended including at least one capacitance
Group is repaid, the capacitance compensation group includes a control switch and a capacitance；
Correspondingly, it is described that the first control signal is written in described control unit so that described control unit is according to
The signal wire that first control signal controls corresponding capacitance compensation unit pair to be connect with the capacitance compensation unit carries out capacitance compensation,
Including：
The first control signal is written in described control unit so that described control unit is according to the first control signal
The opening and closing of the control switch in the capacitance compensation group in corresponding capacitance compensation unit is controlled, in the corresponding capacitance compensation group of control
The signal wire that is connect with the capacitance compensation unit of capacitance pair carry out capacitance compensation.
11. according to the method described in claim 10, it is characterized in that, described be written the control by the first control signal
In unit so that described control unit controls the capacitance compensation in corresponding capacitance compensation unit according to the first control signal
The opening and closing of control switch in group, the signal being connect with the capacitance pair in the corresponding capacitance compensation group of control with the capacitance compensation unit
Line carries out capacitance compensation, including：
The first control signal is written in described control unit so that described control unit is according to the first control signal
Voltage is switched on/turns off to the control being directed in each capacitance compensation group that preset DC-DC module provides to be modulated
It integrates, capacitance compensation is carried out with the signal wire that the capacitance pair in the corresponding capacitance compensation group of control is connect with the capacitance compensation unit.
12. according to the method described in claim 10, it is characterized in that, when the capacitance compensation unit includes multiple capacitance compensations
It is correspondingly, described that the first control signal is written in described control unit so that described control unit is according to during group
The signal wire that first control signal controls corresponding capacitance compensation unit pair to be connect with the capacitance compensation unit carries out capacitance compensation,
Including：
The first control signal is written in described control unit so that described control unit is according to the first control signal
Control the signal that all or part of capacitance compensation group pair is connect with the capacitance compensation unit in corresponding capacitance compensation unit
Line carries out capacitance compensation.
13. the method according to any one of claim 9~12, which is characterized in that when the capacitor compensating circuit includes
When being provided with connecting valve between multiple capacitance compensation units and two neighboring capacitance compensation unit, the first of the connecting valve
The capacitance compensation unit of end connection is upper level capacitance compensation unit, and the capacitance compensation unit of second end connection is next stage capacitance
Compensating unit；
Correspondingly, control section corresponding with the connecting valve has been further included in the first control signal；
Correspondingly, it is described that the first control signal is written in described control unit so that described control unit is according to
The signal wire that first control signal controls corresponding capacitance compensation unit pair to be connect with the capacitance compensation unit carries out capacitance compensation,
It further includes：
The first control signal is written in described control unit so that described control unit is according to the first control signal
The opening and closing of corresponding connecting valve is controlled, the next stage capacitance compensation unit of the connecting valve and upper level capacitance to be controlled to mend
It repays the signal wire that unit connects jointly for the upper level capacitance compensation unit of the connecting valve and carries out capacitance compensation.
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| CN108231790B (en) | 2016-12-13 | 2019-09-17 | 昆山工研院新型平板显示技术中心有限公司 | Display device and its manufacturing method |
| CN107424551B (en) * | 2017-05-25 | 2021-01-29 | 上海天马微电子有限公司 | Array substrate, special-shaped display and display device |
| CN107785399B (en) * | 2017-10-26 | 2020-02-21 | 武汉天马微电子有限公司 | Display panel and display device |
| CN107894862B (en) * | 2017-11-29 | 2021-01-08 | 武汉天马微电子有限公司 | Display panel and display device thereof |
| CN107908030A (en) * | 2017-12-26 | 2018-04-13 | 广东欧珀移动通信有限公司 | Display panel and mobile terminal |
| CN111696464B (en) * | 2019-03-13 | 2022-03-18 | 重庆京东方显示技术有限公司 | Signal line capacitance compensation circuit and display panel |
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| CN104077996A (en) * | 2014-07-08 | 2014-10-01 | 上海天马微电子有限公司 | Grid driving circuit, display panel and display device thereof |
| CN104155811A (en) * | 2014-07-22 | 2014-11-19 | 京东方科技集团股份有限公司 | Display compensation device, display device and display compensation method |
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| CN104077996A (en) * | 2014-07-08 | 2014-10-01 | 上海天马微电子有限公司 | Grid driving circuit, display panel and display device thereof |
| CN104155811A (en) * | 2014-07-22 | 2014-11-19 | 京东方科技集团股份有限公司 | Display compensation device, display device and display compensation method |
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