CN101452131A - Device with built-in capacitance coupling effect compensating function and method - Google Patents

Device with built-in capacitance coupling effect compensating function and method Download PDF

Info

Publication number
CN101452131A
CN101452131A CNA2007101940620A CN200710194062A CN101452131A CN 101452131 A CN101452131 A CN 101452131A CN A2007101940620 A CNA2007101940620 A CN A2007101940620A CN 200710194062 A CN200710194062 A CN 200710194062A CN 101452131 A CN101452131 A CN 101452131A
Authority
CN
China
Prior art keywords
voltage
substrate
common voltage
coupling
common
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2007101940620A
Other languages
Chinese (zh)
Other versions
CN101452131B (en
Inventor
邱莛宸
吴许合
方文振
曾俊钦
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.)
Hannstar Display Corp
Original Assignee
Hannstar Display Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hannstar Display Corp filed Critical Hannstar Display Corp
Priority to CN2007101940620A priority Critical patent/CN101452131B/en
Publication of CN101452131A publication Critical patent/CN101452131A/en
Application granted granted Critical
Publication of CN101452131B publication Critical patent/CN101452131B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The present invention discloses an electronic device which is built in with a capacity coupling effect compensation function. The electronic device comprises a first substrate, a common electrode, a second substrate, a coupling acquisition structure and a compensating circuit. The common electrode is configured on the first substrate. The coupling acquisition structure is configured on a second substrate and is used for outputting a coupling acquisition voltage which comprises a direct-current voltage component and a non-direct-current voltage component. The compensating circuit is used for receiving the coupling acquisition voltage and a second common voltage and outputting a common working voltage. The common working voltage is exerted to the common electrode. The invention also comprises a method for compensating capacity coupling effect of electronic device.

Description

The device and method of built-in capacitance coupling effect compensating function
Technical field
The present invention relates to the compensation technique of capacitance coupling effect, and be particularly related to the method for the electronic installation and the compensate for electronic device capacitance coupling effect of built-in capacitance coupling effect compensating function.
Background technology
Current thin film transistor LCD (TFT LCD; Thin Film TransistorLiquid Crystal Display) in the technology, system circuit board often provides a galvanic current to press with the shared reference voltage as the circuit such as display unit in the substrate.But this shared reference voltage often causes the instability of voltage level because of the capacitance coupling effect between substrate (capacitance coupling effect) the chain ripple phenomenon (ripple) that causes, thereby reduces quality of display pictures.
Fig. 7 shows the configuration diagram of a traditional display panels 700, and it comprises substrate 720, first drive circuit board 750, second drive circuit board 760 and some filter capacitor C1 and C2.In order to solve aforesaid capacitance coupling effect interference problem, existing design often adds many filter capacitor C1, C2 in drive circuit board 750 and/or 760 sides, as shown in Figure 7.But this method also fails to deal with problems fully.
In view of this, be necessary to propose better capacitance coupling effect compensating method, to be applied to the device of this problem.
Summary of the invention
According to the problems referred to above, a preferred embodiment of the present invention proposes a kind of electronic installation of built-in capacitance coupling effect compensating function, and it comprises one first substrate, captures a structure and a compensating circuit with electrode, one second substrate, a coupling altogether.Common electrode is disposed on first substrate.Coupling acquisition structural arrangements is on second substrate, and it is in order to export a coupling acquisition voltage; This coupling acquisition voltage comprises a direct current voltage composition and a non-DC voltage composition.Compensating circuit captures voltage and one second common voltage in order to receive coupling, and exports a work common voltage, and this work common voltage is applied to aforesaid common electrode.
Another embodiment of the present invention also proposes a kind of method of compensate for electronic device capacitance coupling effect, and this method is applicable to an electronic installation, and it has one first substrate, one second substrate and is disposed at common electrode on first substrate.The method comprises provides a coupling acquisition structure, is disposed on second substrate, and to export a coupling acquisition voltage, this coupling acquisition voltage comprises a direct current voltage composition and a non-DC voltage composition; With the signal after the anti-phase gain of non-DC voltage composition cover add to one second common voltage with produce one work common voltage; And apply this work common voltage to aforesaid common electrode.
Description of drawings
Many features of the present invention can further be understood via the following drawings.
Fig. 1 shows the primary structure synoptic diagram according to the liquid crystal indicator of the built-in capacitance coupling effect compensating function of one embodiment of the invention;
Fig. 2 A shows the coupling acquisition voltage that is made of flip-flop and non-flip-flop;
Fig. 2 B shows that non-flip-flop after the flip-flop of filtering coupling acquisition voltage is through anti-phase and add the anti-phase non-flip-flop that obtains after the suitably gain;
Fig. 2 C shows anti-phase non-flip-flop covered and adds on second common voltage and obtain the work common voltage;
Fig. 3 shows the structural representation according to the liquid crystal panel with coupling acquisition structure of one embodiment of the invention;
Fig. 4 shows the method according to the compensate for electronic device capacitance coupling effect of one embodiment of the invention;
Fig. 5 shows the method according to the compensate for electronic device capacitance coupling effect of another embodiment of the present invention;
Fig. 6 shows the method according to the compensate for electronic device capacitance coupling effect of further embodiment of this invention;
Fig. 7 shows the configuration diagram of a traditional display panels.
[main element symbol description]
100 liquid crystal indicators
110 first substrates/CF substrate
115 common electrodes
120 second substrates/Array substrate
125 coupling acquisition structures
130 compensating circuits
150 first circuit boards
160 second circuit boards
The 410-430 step
The 510-540 step
The 610-640 step
V1 first common voltage
V2 second common voltage
VCCT coupling acquisition voltage
The Vcom common voltage of working
Embodiment
Below in detail embodiments of the invention will be described in detail, its details also is presented in the relevant accompanying drawing, and numbering or mark identical in the different accompanying drawings are represented components identical or notion.The explanation of the embodiment of the invention will cooperate relevant accompanying drawing to carry out.
Referring to Fig. 1, it shows the primary structure synoptic diagram according to the liquid crystal indicator 100 of the built-in capacitance coupling effect compensating function of one embodiment of the invention.Liquid crystal indicator 100 comprises one first substrate 110, captures a structure 125 and a compensating circuit 130 with electrode 115, one second substrate 120, a coupling altogether.Common electrode 115 is disposed on first substrate 110, and 125 on structure of coupling acquisition is disposed on second substrate 120.Common electrode 115 on first substrate 110 can be configured to the wiring of different shape according to the different demands of product, and the coupling acquisition structure 125 on second substrate can be configured to the wiring of different shape, also can be the circuit form, sees the following description for details.
Coupling acquisition structure 125 receives one first common voltage V1, and exports a coupling acquisition voltage V CCTCompensating circuit 130 receives one second common voltage V2 and captures the coupling acquisition voltage V of structure 125 from coupling CCT, and export a work common voltage Vcom to be applied to the common electrode 115 on first substrate 110.Though be not shown among the figure, still can add on first substrate 110 such as colored filter elements such as (Color Filter), so first substrate 110 is also sometimes referred to as the CF substrate.Second substrate, 120 all right configuration data lines (data lines), sweep trace wirings such as (scan lines), and in order to the TFT cell array as display unit, so second substrate 120 is also sometimes referred to as the Array substrate.120 of first substrate 110 and second substrates then can be filled with the liquid crystal material.Can also comprise the circuit board (not being shown among the figure) that carries components of drive circuit on the liquid crystal indicator 100, the compensating circuit 130 of present embodiment can dispose thereon.
The first common voltage V1 and the second common voltage V2 can be the DC voltage of certain bits standard, and position standard each other not necessarily will equate.Coupling acquisition voltage V CCTComprise a stable flip-flop Vdc and a unsettled non-flip-flop Vac that capacitance coupling effect caused by 120 of first substrate 110 and second substrates.Stable flip-flop Vdc promptly is the direct current position standard of the first common voltage V1 usually.Unsettled non-flip-flop Vac then can be periodicity or the acyclic non-stationary noise form that various capacitance coupling effect causes.
The function of compensating circuit 130 is to take out coupling acquisition voltage V CCTIn non-flip-flop Vac, it is anti-phase and add suitably and obtain an anti-phase non-flip-flop Vac ' after the gain, and this moment, Vac ' was the reverse signal of Vac, so Vac ' can be various periodicity or acyclic non-stationary noise form equally.Next anti-phase non-flip-flop Vac ' is covered and be added on the second common voltage V2 to export aforesaid work common voltage Vcom.Fig. 2 A to Fig. 2 C is with an exemplary coupling acquisition voltage V CCT, the non-flip-flop of illustration compensating circuit 130 is taken out action and anti-phase gain action.Fig. 2 A shows coupling acquisition voltage V CCTBe made of flip-flop Vdc and non-flip-flop Vac, flip-flop Vdc promptly is the direct current position standard of the aforementioned first common voltage V1 usually.Fig. 2 B shows filtering coupling acquisition voltage V CCTFlip-flop after non-flip-flop Vac through anti-phase and add the anti-phase non-flip-flop Vac ' that obtains after the suitably gain.Fig. 2 C shows anti-phase non-flip-flop Vac ' covered and adds on the second common voltage V2 and obtain work common voltage Vcom that therefore, Fig. 2 C shows that promptly work common voltage Vcom is made of flip-flop V2 and non-flip-flop Vac '.Those skilled in the art are when understanding, and the compensating circuit 130 that function describes in detail as above can be made up of circuit such as general operational amplifier, phase inverter, coupling mechanisms, cooperates suitable master, passive device to realize again.
Coupling acquisition structure 125 can comprise conductive wiring, perhaps Xiang Guan circuit structure, and it mainly acts on and is to respond to the combined influence that first substrate 110 and 120 capacitance coupling effects of second substrate cause.The combined influence that this capacitance coupling effect causes will be gone up in the first common voltage V1 and produce aforesaid unsettled non-flip-flop Vac.According to spirit of the present invention, the wire structures that constitutes coupling acquisition structure 125 can be configured to various suitable structures according to the present situation of product, such as straight line, curve, dots structure, reticulate texture or the like, the circuit structure that constitutes coupling acquisition structure 125 is made of general main passive device.In the single liquid crystal indicator, can also independently be coupled according to the many groups of individual cases configuration and capture structure 125, cooperate relative common electrode 115 to remedy local capacitance coupling effect respectively.
Fig. 3 shows the structural representation according to the liquid crystal panel 100 with coupling acquisition structure 125 of one embodiment of the invention.Liquid crystal panel 100 comprises CF substrate 110 (with respect to first substrate of Fig. 1), Array substrate 120 (with respect to second substrate of Fig. 1), coupling acquisition structure 125, first circuit board 150 and second circuit board 160.In the present embodiment, coupling acquisition structure 125 is the vertical conductive wiring of independence or the circuit that are positioned at Array substrate 120 both sides, the coupling acquisition voltage V of its generation CCTCan produce work common voltage Vcom via the compensating circuit 130 (not being shown in figure) that is arranged on first circuit board 150 and/or the second circuit board 160, and the relative common electrode 115 (not being shown among the figure) of input CF substrate 110.As previously mentioned, according to spirit of the present invention, the wire structures of coupling acquisition structure 125 is not limited to straight line, its direction also be not limited to as shown in this example vertically.
Coupling acquisition structure 125 can be corresponding to one or more TFT display unit, and according to the actual conditions configuration of product with adjust.For example, when the privileged site of the finished product panel that designs has more serious capacitance coupling effect problem, can be at this privileged site cloth with suitable coupling acquisition structure 125, and with the aforesaid mode of the present invention produce work common voltage Vcom to respect near the common electrode this privileged site 115 to overcome or to reduce the influence of capacitance coupling effect.
Fig. 4 shows the method according to the compensate for electronic device capacitance coupling effect of one embodiment of the invention, and the method is applicable to have the electronic installation 100 that disposes common electrode 115 on one first substrate 110, one second substrate 120 and first substrate 110.The explanation of present embodiment sees also the element number of Fig. 1.At first, in step 410, present embodiment provides a coupling acquisition structure 125.This coupling acquisition structure 125 is disposed on second substrate 120, receiving one first common voltage V1, and exports a coupling acquisition voltage V CCTThis coupling acquisition voltage V CCTComprise a direct current voltage composition Vdc and a non-DC voltage composition Vac.As mentioned above, non-flip-flop Vac can be by first substrate 110 and 120 periodicity that capacitance coupling effect caused of second substrate or acyclic non-stationary noise form.
In step 420, the signal Vac ' lining after the anti-phase gain of non-DC voltage composition Vac adds to one second common voltage V2 to produce a work common voltage Vcom, and therefore, work common voltage Vcom is made of a direct current composition V2 and a non-flip-flop Vac '.For example, step 420 can be realized by the compensating circuit 130 of Fig. 1.
The step 430 common voltage Vcom that will work is applied to common electrode 125.Work common voltage Vcom comprises in order to the compensating signal Vac ' of capacitance coupling effect between the compensation substrate to overcome or to alleviate the negative effect that is produced by the capacitive coupling phenomenon.
Fig. 5 shows the method according to the compensate for electronic device capacitance coupling effect of another embodiment of the present invention.As shown in Figure 5, at first, in step 510, provide one first common voltage, and first common voltage is put on second substrate, as the embodiment of Fig. 4, same configuration coupling acquisition structure on second substrate.Then in step 520 owing on second substrate, apply first common voltage, and on second substrate configuration coupling acquisition structure, go out a coupling acquisition voltage at the second substrate fechtable.The acquisition voltage that will be coupled in step 530 inputs to a compensating circuit.In step 540, export common voltage at last, make this common voltage input to common electrode to overcome or to reduce the influence of capacitance coupling effect from this compensating circuit.
Fig. 6 shows the method according to the compensate for electronic device capacitance coupling effect of another embodiment of the present invention.As shown in Figure 6, at first, in step 610, provide one first common voltage, and first common voltage is put on second substrate, as the embodiment of Fig. 4, same configuration coupling acquisition structure on second substrate.Then in step 620 owing on second substrate, apply first common voltage, and on second substrate configuration coupling acquisition structure, go out a coupling acquisition voltage at the second substrate fechtable.In step 630, capture voltage to produce a work common voltage according to coupling.Last in step 640 transmission work common voltage to this common electrode to overcome or to reduce the influence of capacitance coupling effect.
Above embodiment only is the example of possible embodiment.Many changes or modification all can realize under the principle that does not break away from present patent application.For example, the device that is suitable for is not limited to LCD, and should be applicable to that all meet the electronic installation of disclosed framework.This change or revise all should be considered as within present patent application and to be protected by appending claims.

Claims (10)

1, a kind of electronic installation of built-in capacitance coupling effect compensating function comprises:
One first substrate;
Use electrode altogether, be disposed on described first substrate;
One second substrate is to receive one first common voltage;
One coupling acquisition structure is disposed on described second substrate, to export a coupling acquisition voltage; And
One compensating circuit is in order to receive described coupling acquisition voltage and to export a work common voltage to described common electrode.
2, the electronic installation of built-in capacitance coupling effect compensating function as claimed in claim 1, wherein said compensating circuit also receive one second common voltage, and export described work common voltage according to described coupling acquisition voltage and described second common voltage.
3, the signal that the electronic installation of built-in capacitance coupling effect compensating function as claimed in claim 2, wherein said work common voltage are covered by described second common voltage after the anti-phase gain of the non-DC voltage composition that adds described coupling acquisition voltage is constituted.
4, the electronic installation of built-in capacitance coupling effect compensating function as claimed in claim 1, wherein said coupling acquisition voltage is the voltage that capacitance coupling effect produced of induction between described first substrate and described second substrate.
5, the electronic installation of built-in capacitance coupling effect compensating function as claimed in claim 2, wherein said first common voltage equals described second common voltage.
6, compensation method as claimed in claim 1, wherein said compensating circuit comprise an amplifier circuit, a Nverter circuit and a coupler circuit.
7, a kind of method of compensate for electronic device capacitance coupling effect, described electronic installation have one first substrate, one second substrate and are disposed at common electrode on described first substrate, and described method comprises:
Provide one first common voltage to described second substrate;
One coupling acquisition structure is provided, is disposed on described second substrate, to export a coupling acquisition voltage, described coupling acquisition voltage comprises a direct current voltage composition and a non-DC voltage composition;
With the signal after the anti-phase gain of described non-DC voltage composition cover add to one second common voltage with produce one work common voltage; And
Apply described work common voltage to described common electrode.
8, the method for compensate for electronic device capacitance coupling effect as claimed in claim 7, the step that wherein produces described work common voltage is carried out by a compensating circuit.
9, a kind of compensation method of display device, described display device have one first substrate, one second substrate and are disposed at common electrode on described first substrate, and described method comprises:
Provide one first common voltage to described second substrate;
From described second substrate acquisition, one coupling acquisition voltage, wherein said coupling acquisition voltage comprises one first DC voltage composition and one first non-DC voltage composition;
According to described coupling acquisition voltage, produce a work common voltage, wherein said work common voltage comprises one second DC voltage composition and one second non-DC voltage composition, and the described second non-DC voltage composition and the described first non-DC voltage composition are inverting each other; And
Transmit the described common electrode of described work common voltage to described first substrate.
10, a kind of common voltage compensation method of liquid crystal panel, described liquid crystal panel have one first substrate and one second substrate and be disposed at uses electrode altogether on first substrate, and described method comprises:
Provide one first common voltage to input to described second substrate;
Capture a coupling acquisition voltage from described second substrate;
With described coupling acquisition voltage through a compensating circuit to produce a work common voltage; And
Described work common voltage is inputed to described common electrode.
CN2007101940620A 2007-11-30 2007-11-30 Liquid crystal device with built-in capacitance coupling effect compensating function and method Expired - Fee Related CN101452131B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2007101940620A CN101452131B (en) 2007-11-30 2007-11-30 Liquid crystal device with built-in capacitance coupling effect compensating function and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2007101940620A CN101452131B (en) 2007-11-30 2007-11-30 Liquid crystal device with built-in capacitance coupling effect compensating function and method

Publications (2)

Publication Number Publication Date
CN101452131A true CN101452131A (en) 2009-06-10
CN101452131B CN101452131B (en) 2010-09-29

Family

ID=40734463

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2007101940620A Expired - Fee Related CN101452131B (en) 2007-11-30 2007-11-30 Liquid crystal device with built-in capacitance coupling effect compensating function and method

Country Status (1)

Country Link
CN (1) CN101452131B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI421851B (en) * 2011-05-17 2014-01-01 Au Optronics Corp Liquid crystal display having common voltage compensation mechanism and common voltage compensation method
CN103913867A (en) * 2014-03-31 2014-07-09 昆山龙腾光电有限公司 Liquid crystal display device and noise elimination method
WO2015062264A1 (en) * 2013-10-28 2015-05-07 京东方科技集团股份有限公司 Common electrode voltage compensation control circuit and method, array substrate and display device
CN107369424A (en) * 2017-08-31 2017-11-21 京东方科技集团股份有限公司 A kind of common electric voltage compensation circuit, compensation method and display device
CN113689818A (en) * 2021-10-25 2021-11-23 常州欣盛半导体技术股份有限公司 Gate driving circuit and driving chip comprising same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3813463B2 (en) * 2000-07-24 2006-08-23 シャープ株式会社 Drive circuit for liquid crystal display device, liquid crystal display device using the same, and electronic equipment using the liquid crystal display device
JP2005099715A (en) * 2003-08-29 2005-04-14 Seiko Epson Corp Driving method of electronic circuit, electronic circuit, electronic device, electrooptical device, electronic equipment and driving method of electronic device
CN100538804C (en) * 2005-10-21 2009-09-09 友达光电股份有限公司 Display panel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI421851B (en) * 2011-05-17 2014-01-01 Au Optronics Corp Liquid crystal display having common voltage compensation mechanism and common voltage compensation method
WO2015062264A1 (en) * 2013-10-28 2015-05-07 京东方科技集团股份有限公司 Common electrode voltage compensation control circuit and method, array substrate and display device
CN103913867A (en) * 2014-03-31 2014-07-09 昆山龙腾光电有限公司 Liquid crystal display device and noise elimination method
CN103913867B (en) * 2014-03-31 2017-01-11 昆山龙腾光电有限公司 Liquid crystal display device and noise elimination method
CN107369424A (en) * 2017-08-31 2017-11-21 京东方科技集团股份有限公司 A kind of common electric voltage compensation circuit, compensation method and display device
CN113689818A (en) * 2021-10-25 2021-11-23 常州欣盛半导体技术股份有限公司 Gate driving circuit and driving chip comprising same

Also Published As

Publication number Publication date
CN101452131B (en) 2010-09-29

Similar Documents

Publication Publication Date Title
US10671226B2 (en) Display device and electronic device
CN101452131B (en) Liquid crystal device with built-in capacitance coupling effect compensating function and method
US20180239491A1 (en) Array substrate, method for driving the array substrate, display panel and display device
US9864457B2 (en) Display device with touch sensor
CN112987424B (en) Array substrate, touch display panel and touch display device
CN104777942B (en) Touch-control display panel, driving method and touch control display apparatus
CN106855762B (en) A kind of array substrate, touch-control display panel and touch control display apparatus
CN101303841B (en) Liquid crystal display device
CN104281352B (en) A kind of In-cell touch panel and display device
CN101320170B (en) LCD device
US20180293956A1 (en) Array substrate, display panel and display device
DE102013112615B4 (en) Display device with integrated touch sensor
DE102015117802A1 (en) Touchpad and drive circuit of the same
CN102478998B (en) Display device having touch screen panel
CN103149765B (en) Pixel structure of display panel
RU2486577C1 (en) Circuit of display control and single-board module comprising such circuit
JP2006171748A (en) Display panel with internal sensing element, and display device
US11307698B2 (en) Touch display device, driving circuit and driving method thereof
CN113284467B (en) Source driver and gamma voltage compensation method thereof, display module and display device
KR102394393B1 (en) Display device
CN107316596B (en) Array substrate tests circuit
US11355521B2 (en) Double-sided display panel and display device
WO2013122287A1 (en) Driving electrode pattern, touch panel, touch panel module, and electronic device including the same
KR20150089917A (en) touch sensing controller, touch sensing device and touch sensing system including touch sensing controller
CN217640626U (en) Driving circuit for driving double display screens by single string adding chip

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100929

Termination date: 20151130

EXPY Termination of patent right or utility model