CN109147705A - Quick discharging circuit - Google Patents

Quick discharging circuit Download PDF

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Publication number
CN109147705A
CN109147705A CN201811150192.9A CN201811150192A CN109147705A CN 109147705 A CN109147705 A CN 109147705A CN 201811150192 A CN201811150192 A CN 201811150192A CN 109147705 A CN109147705 A CN 109147705A
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CN
China
Prior art keywords
lighting
reference voltage
signal line
connect
switch
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
CN201811150192.9A
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Chinese (zh)
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CN109147705B (en
Inventor
罗鹏
霍培荣
赵顺
王广帅
王志强
唐乌力吉白尔
石天雷
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BOE Technology Group Co Ltd
Ordos Yuansheng Optoelectronics Co Ltd
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BOE Technology Group Co Ltd
Ordos Yuansheng Optoelectronics Co Ltd
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Priority to CN201811150192.9A priority Critical patent/CN109147705B/en
Publication of CN109147705A publication Critical patent/CN109147705A/en
Application granted granted Critical
Publication of CN109147705B publication Critical patent/CN109147705B/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The invention proposes a kind of quick discharging circuit, which includes: reference voltage signal line, and reference voltage signal line is connect with display panel；Lighting signal wire, lighting signal wire are connect with display panel；First switch module, first switch module are connect with reference voltage signal line and lighting signal wire respectively, the connection for being switched on or switched off between reference voltage signal line and lighting signal wire.Quick discharging circuit of the invention, in display panel repid discharge, first switch module connects the connection between reference voltage signal line and lighting signal wire, make short-circuit between reference voltage signal line and lighting signal wire, make the electric pole short circuit of both connections on display panel accordingly, to make the positive and negative charge for being charged to this two electrode neutralize mutually, realize repid discharge, make display panel that can discharge completely in module set section, CellET sections, liquid crystal polarization caused by preventing charge electric discharge unclean, to avoid the problem that grayscale shake occurs in module set section.

Description

Quick discharging circuit
Technical field
The present invention relates to circuit field more particularly to a kind of quick discharging circuits.
Background technique
Low-temperature polysilicon silicon technology liquid crystal display (Low Temperature Poly-siliconLiquid Crystal Display, abbreviation LTPSLCD) display panel because charge residue problem will appear grayscale and shake bad phenomenon, further The quick discharge function for optimizing display panel is a urgent problem.
In the related technology, the repid discharge of display panel usually passes through GOA signal and draws high, Source, VCOM signal ground It realizes, but this mode is only applicable to the electric discharge of module set section, for CellET sections, the output PIN foot of lighting signal source cannot It realizes the switching between analog signal and GND, can only be drawn high at present by GOA, Source (CTD), VCOM are put to the mode of 0V Electricity.But due to the error of signal source output, the signal of reality output has several hundred millivolts of error, leads to CellET sections of display surfaces The electric discharge of plate charge is not clean.The electric field that these charges are formed makes liquid crystal polarization for a long time, and display panel is caused to occur in module set section Grayscale shake.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of quick discharging circuit, when display panel is normally shown, the One switch module disconnects the connection between reference voltage signal line and lighting signal wire, works normally display panel；It is showing When panel repid discharge, first switch module connects the connection between reference voltage signal line and lighting signal wire, makes with reference to electricity Short circuit between signal wire and lighting signal wire is pressed, makes the electric pole short circuit of both connections on display panel accordingly, to make to be charged to The positive and negative charge of this two electrode neutralizes mutually, realizes repid discharge, makes display panel in module set section, CellET sections can discharge stem Only, liquid crystal polarization caused by preventing charge electric discharge unclean, to avoid the problem that grayscale shake occurs in module set section.
In order to achieve the above object, the embodiment of the present invention proposes a kind of quick discharging circuit, comprising:
Reference voltage signal line, the reference voltage signal line are connect with display panel；
Lighting signal wire, the lighting signal wire are connect with the display panel；
First switch module, the first switch module respectively with the reference voltage signal line and the lighting signal wire Connection, the connection for being switched on or switched off between the reference voltage signal line and the lighting signal wire.
The quick discharging circuit proposed according to embodiments of the present invention, when display panel is normally shown, first switch module The connection between reference voltage signal line and lighting signal wire is disconnected, display panel is worked normally；It is quickly put in display panel When electric, first switch module connects the connection between reference voltage signal line and lighting signal wire, make reference voltage signal line with It is short-circuit between lighting signal wire, make the electric pole short circuit of both connections on display panel accordingly, to make to be charged to this two electrode Positive and negative charge neutralizes mutually, realizes repid discharge, makes display panel that can discharge completely in module set section, CellET sections, prevent electricity Liquid crystal polarization caused by lotus electric discharge is not clean, to avoid the problem that grayscale shake occurs in module set section.
According to one embodiment of present invention, the lighting signal wire includes: lighting even number column signal line, and the lighting is even Ordered series of numbers signal wire is connect with the even column electrode of the display panel；Lighting odd number column signal line, the lighting odd number column signal Line is connect with the odd column electrode of the display panel.
According to one embodiment of present invention, the first switch module includes: at least one first switch tube, and described One switching tube is connect with the reference voltage signal line and the lighting even number column signal line respectively；At least one second switch Pipe, the second switch are connect with the reference voltage signal line and the lighting odd number column signal line respectively.
According to one embodiment of present invention, quick discharging circuit, further includes: first switch tube control signal wire；Institute The control terminal for stating first switch tube is connect with the first switch tube control signal wire, the first end of the first switch tube and institute Reference voltage signal line connection is stated, the second end of the first switch tube is connect with the lighting even number column signal line；Described The control terminal of two switching tubes is connect with the first switch tube control signal wire, the first end of the second switch and the ginseng The connection of voltage signal line is examined, the second end of the second switch is connect with the lighting odd number column signal line.
According to one embodiment of present invention, quick discharging circuit, further includes: second switch module, described second opens Module is closed to connect with reference voltage signal source, lighting signal source, the reference voltage signal line and the lighting signal wire respectively, Connection for being switched on or switched off between the reference voltage signal source and the reference voltage signal line, and be switched on or switched off Connection between the lighting signal source and the lighting signal wire.
According to one embodiment of present invention, the lighting signal source includes: lighting even column signal source and lighting odd number Column signal source；The second switch module includes: at least one third switching tube, the third switching tube respectively with the reference Voltage signal source is connected with the reference voltage signal line；At least one the 4th switching tube, the 4th switching tube respectively with institute Lighting even column signal source is stated to connect with the lighting even number column signal line；At least one the 5th switching tube, the 5th switch Pipe is connect with the lighting odd column signal source and the lighting odd number column signal line respectively.
According to one embodiment of present invention, quick discharging circuit, further includes: second switch control signal wire；Institute The control terminal for stating third switching tube is connect with the second switch control signal wire, the first end of the third switching tube and institute The connection of reference voltage signal source is stated, the second end of the third switching tube is connect with the reference voltage signal line；Described 4th The control terminal of switching tube is connect with the second switch control signal wire, the first end and the lighting of the 4th switching tube The connection of even column signal source, the second end of the 4th switching tube are connect with the lighting even number column signal line；Described 5th opens The control terminal for closing pipe is connect with the second switch control signal wire, and the first end of the 5th switching tube and the lighting are odd The connection of ordered series of numbers signal source, the second end of the 5th switching tube are connect with the lighting odd number column signal line.
Detailed description of the invention
Fig. 1 is the structure chart of quick discharging circuit according to an embodiment of the invention；
Fig. 2 is the circuit diagram of quick discharging circuit according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The quick discharging circuit of the embodiment of the present invention described with reference to the accompanying drawing.
Fig. 1 is the structure chart of quick discharging circuit according to an embodiment of the invention, as shown in Figure 1, the repid discharge Circuit includes:
Reference voltage signal line VCOM, reference voltage line VCOM are connect with display panel 11；
Lighting signal wire CTD, lighting signal wire CTD are connect with display panel 11；
First switch module 12, first switch module 12 respectively with reference voltage signal line VCOM and lighting signal wire CTD Connection, the connection for being switched on or switched off between reference voltage signal line VCOM and lighting signal wire CTD.
In the embodiment of the present invention, reference voltage line VCOM is connect with display panel 11, specifically can be with display as shown in Figure 1 C-ITO electrode connection on panel 11；Lighting signal wire CTD is connect with display panel 11, specifically can be with display as shown in Figure 1 P-ITO electrode connection on panel 11.When display panel 11 is normally shown, first switch module 12 disconnects reference voltage signal Connection between line VCOM and lighting signal wire CTD works normally display panel 11；When 11 repid discharge of display panel, First switch module 12 connects the connection between reference voltage signal line VCOM and lighting signal wire CTD, makes reference voltage signal It is short-circuit between line VCOM and lighting signal wire CTD, make P-ITO electrode and C-ITO electric pole short circuit on display panel 11 accordingly, To make the positive and negative charge for being charged to this two electrode neutralize mutually, realizes repid discharge, make display panel 11 in module set section, CellET Duan Junke electric discharge is clean, liquid crystal polarization caused by preventing charge electric discharge unclean, so that module set section be avoided grayscale shake occur Problem.
The quick discharging circuit proposed according to embodiments of the present invention, when display panel is normally shown, first switch module The connection between reference voltage signal line and lighting signal wire is disconnected, display panel is worked normally；It is quickly put in display panel When electric, first switch module connects the connection between reference voltage signal line and lighting signal wire, make reference voltage signal line with It is short-circuit between lighting signal wire, make the electric pole short circuit of both connections on display panel accordingly, to make to be charged to this two electrode Positive and negative charge neutralizes mutually, realizes repid discharge, makes display panel that can discharge completely in module set section, CellET sections, prevent electricity Liquid crystal polarization caused by lotus electric discharge is not clean, to avoid the problem that grayscale shake occurs in module set section.
Fig. 2 is the circuit diagram of quick discharging circuit according to an embodiment of the invention, as shown in Fig. 2, reality shown in Fig. 1 On the basis of applying example, lighting signal wire CTD includes: lighting even number column signal line CTD_E, lighting even number column signal line CTD_E and aobvious Show the even column electrode P-ITO_E connection of panel 11；Lighting odd number column signal line CTD_O, lighting odd number column signal line CTD_O with The odd column electrode P-ITO_O connection of display panel 11.
Further, first switch module 12 is specific can include: at least one first switch tube Q1, first switch tube Q1 point It is not connect with reference voltage signal line VCOM and lighting even number column signal line CTD_E；At least one second switch Q2, second opens Pipe Q2 is closed to connect with reference voltage signal line VCOM and lighting odd number column signal line CTD_O respectively.
Further, on the basis of embodiment shown in Fig. 1, which may also include that first switch is managed Signal wire DischargeSwitch processed；The control terminal and first switch tube control signal wire of first switch tube Q1 The first end of DischargeSwitch connection, first switch tube Q1 is connect with reference voltage signal line VCOM, first switch tube Q1 Second end connect with lighting even number column signal line CTD_E；The control terminal and first switch tube of second switch Q2 controls signal Line DischargeSwitch connection, the first end of second switch Q2 are connect with reference voltage signal line VCOM, second switch Second end Q2 connect with lighting odd number column signal line CTD_O.
In the embodiment of the present invention, with two first switch tubes Q1 shown in Fig. 2, for two second switch Q2.First Switch controlled signal wire DischargeSwitch is for controlling Q1, the conducting and cut-off of Q2.When display panel 11 is normally shown When, for first switch tube control signal wire DischargeSwitch output cut-off control signal to Q1, the control terminal of Q2 controls Q1, Q2 cut-off, to make reference voltage signal line VCOM and lighting even number column signal line CTD_E and lighting odd number column signal line CTD_O It is separated, show that display panel 11 can normally.When 11 repid discharge of display panel, first switch tube control signal wire DischargeSwitch exports conductivity control signal to Q1, and the control terminal of Q2 controls Q1, Q2 conducting, so that reference voltage be made to believe It number is connected between line VCOM and lighting even number column signal line CTD_E and lighting odd number column signal line CTD_O, reference voltage signal line It is short-circuit between VCOM and lighting even number column signal line CTD_E and lighting odd number column signal line CTD_O, make on display panel accordingly It is short-circuit between C-ITO electrode and P-ITO_E and P-ITO_O electrode, to make to be charged to C-ITO electrode and P-ITO_E electrode and P- The positive and negative charge of ITO_O electrode neutralizes mutually, realizes repid discharge, makes display panel that can discharge in module set section, CellET sections Completely, liquid crystal polarization caused by preventing charge electric discharge unclean, to avoid the problem that grayscale shake occurs in module set section.Wherein, Q1, Q2 concretely metal-oxide semiconductor transistor as shown in Figure 2 (Metal Oxide Semiconductor, letter Claim metal-oxide-semiconductor), the grid of the control terminal of Q1, Q2 concretely metal-oxide-semiconductor, the source electrode (leakage of the first end of Q1, Q2 concretely metal-oxide-semiconductor Pole), the drain electrode (source electrode) of the second end of Q1, Q2 concretely metal-oxide-semiconductor, as a kind of feasible embodiment, first switch tube Control signal wire DischargeSwitch can be by giving Q1, and the low level mode of Q2 grid -8V makes Q1, and Q2 cut-off can be by giving The mode of Q1, Q2 grid+8V high level makes Q1, Q2 conducting.
Further, on the basis of embodiment shown in Fig. 1, which may also include that second switch module 13, second switch module 13 respectively with reference voltage signal source S-VCOM, lighting signal source 14, reference voltage signal line VCOM and Lighting signal wire CTD connection, for being switched on or switched off between reference voltage signal source S-VCOM and reference voltage signal line VCOM Connection, and the connection being switched on or switched off between lighting signal source 14 and lighting signal wire CTD.
Lighting signal source 14 includes: lighting even column signal source S-CTD_E and lighting odd column signal source S-CTD_O；The Two switch modules 13 include: at least one third switching tube Q3, third switching tube Q3 respectively with reference voltage signal source S-VCOM It is connected with reference voltage signal line VCOM；At least one the 4th switching tube Q4, the 4th switching tube Q4 believe with lighting even column respectively Number source S-CTD_E connects CTD_E with lighting even number column signal line；At least one the 5th switching tube Q5, the 5th switching tube Q5 difference It is connect with lighting odd column signal source S-CTD_O and lighting odd number column signal line CTD_O.
Further, on the basis of embodiment shown in Fig. 1, the quick discharging circuit, further includes: second switch control Signal wire CT Switch；The control terminal of third switching tube Q3 is connect with second switch control signal wire CT Switch, third The first end of switching tube Q3 is connect with reference voltage signal source S-VCOM, the second end and reference voltage signal of third switching tube Q3 Line VCOM connection；The control terminal of 4th switching tube Q4 is connect with second switch control signal wire CT Switch, the 4th switching tube The first end of Q4 is connect with lighting even column signal source S-CTD_E, the second end and lighting even number column signal of the 4th switching tube Q4 Line CTD_E connection；The control terminal of 5th switching tube Q5 is connect with second switch control signal wire CT Switch, the 5th switch The first end of pipe Q5 is connect with lighting odd column signal source S-CTD_O, and the second end and lighting odd column of the 5th switching tube Q5 is believed Number line CTD_O connection.
In the embodiment of the present invention, with two third switching tubes Q3, two the 4th switching tube Q4 shown in Fig. 2, two the 5th For switching tube Q5.Second switch control signal wire CT Switch is for controlling Q3, the conducting and cut-off of Q4, Q5.Work as display When panel 11 is normally shown, second switch control signal wire CT Switch exports conductivity control signal to Q3, the control of Q4, Q5 End processed controls Q3, Q4, Q5 conducting, thus reference voltage signal source S-VCOM, lighting even column signal source S-CTD_E and lighting Odd column signal source S-CTD_O can export corresponding signal to reference voltage signal line VCOM, lighting even number column signal line respectively CTD_E and lighting odd number column signal line CTD_O, show that display panel 11 can normally；When 11 repid discharge of display panel, the Two switch controlled signal wire CT Switch output cut-off control signal to Q3, the control terminal of Q4, Q5 controls Q3, and Q4, Q5 are cut Only, to stop reference voltage signal source S-VCOM, lighting even column signal source S-CTD_E and lighting odd column signal source S- CTD_O exports corresponding signal to reference voltage signal line VCOM, lighting even number column signal line CTD_E and lighting odd number column signal line CTD_O.Wherein, Q3, Q4, Q5 concretely metal-oxide-semiconductor as shown in Figure 2, Q3, Q4, the grid of the control terminal of Q5 concretely metal-oxide-semiconductor Pole, Q3, Q4, the source electrode (drain electrode) of the first end of Q5 concretely metal-oxide-semiconductor, Q3, Q4, the second end of Q5 concretely metal-oxide-semiconductor Drain (source electrode), as a kind of feasible embodiment, second switch control signal wire CT Switch can by giving Q3, Q4, The low level mode of Q5 grid -8V makes Q3, and Q4, Q5 cut-off can make Q3 by the mode to Q3, Q4, Q5 grid+8V high level, Q4, Q5 conducting.
The quick discharging circuit proposed according to embodiments of the present invention, when display panel is normally shown, first switch module The connection between reference voltage signal line and lighting signal wire is disconnected, display panel is worked normally；It is quickly put in display panel When electric, first switch module connects the connection between reference voltage signal line and lighting signal wire, make reference voltage signal line with It is short-circuit between lighting signal wire, make the electric pole short circuit of both connections on display panel accordingly, to make to be charged to this two electrode Positive and negative charge neutralizes mutually, realizes repid discharge, makes display panel that can discharge completely in module set section, CellET sections, prevent electricity Liquid crystal polarization caused by lotus electric discharge is not clean, to avoid the problem that grayscale shake occurs in module set section.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the technology of this field The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel And combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (7)

1. a kind of quick discharging circuit characterized by comprising
Reference voltage signal line, the reference voltage signal line are connect with display panel；
Lighting signal wire, the lighting signal wire are connect with the display panel；
First switch module, the first switch module connect with the reference voltage signal line and the lighting signal wire respectively It connects, the connection for being switched on or switched off between the reference voltage signal line and the lighting signal wire.
2. quick discharging circuit according to claim 1, which is characterized in that the lighting signal wire includes:
Lighting even number column signal line, the lighting even number column signal line are connect with the even column electrode of the display panel；
Lighting odd number column signal line, the lighting odd number column signal line are connect with the odd column electrode of the display panel.
3. quick discharging circuit according to claim 2, which is characterized in that the first switch module includes:
At least one first switch tube, the first switch tube respectively with the reference voltage signal line and the lighting even column Signal wire connection；
At least one second switch, the second switch respectively with the reference voltage signal line and the lighting odd column Signal wire connection.
4. quick discharging circuit according to claim 3, which is characterized in that further include: first switch tube control signal wire；
The control terminal of the first switch tube is connect with the first switch tube control signal wire, and the first of the first switch tube End is connect with the reference voltage signal line, and the second end of the first switch tube is connect with the lighting even number column signal line；
The control terminal of the second switch is connect with the first switch tube control signal wire, and the first of the second switch End is connect with the reference voltage signal line, and the second end of the second switch is connect with the lighting odd number column signal line.
5. quick discharging circuit according to claim 2, which is characterized in that further include:
Second switch module, the second switch module respectively with reference voltage signal source, lighting signal source, the reference voltage Signal wire is connected with the lighting signal wire, for being switched on or switched off the reference voltage signal source and the reference voltage signal Connection between line, and the connection being switched on or switched off between the lighting signal source and the lighting signal wire.
6. quick discharging circuit according to claim 5, which is characterized in that the lighting signal source includes: lighting even number Column signal source and lighting odd column signal source；
The second switch module includes:
At least one third switching tube, the third switching tube are believed with the reference voltage signal source and the reference voltage respectively The connection of number line；
At least one the 4th switching tube, the 4th switching tube respectively with the lighting even column signal source and the lighting even number Column signal line connection；
At least one the 5th switching tube, the 5th switching tube respectively with the lighting odd column signal source and the lighting odd number Column signal line connection.
7. quick discharging circuit according to claim 6, which is characterized in that further include: second switch control signal wire；
The control terminal of the third switching tube is connect with the second switch control signal wire, and the first of the third switching tube End is connect with the reference voltage signal source, and the second end of the third switching tube is connect with the reference voltage signal line；
The control terminal of 4th switching tube is connect with the second switch control signal wire, and the first of the 4th switching tube End is connect with the lighting even column signal source, and the second end of the 4th switching tube and the lighting even number column signal line connect It connects；
The control terminal of 5th switching tube is connect with the second switch control signal wire, and the first of the 5th switching tube End is connect with the lighting odd column signal source, and the second end of the 5th switching tube and the lighting odd number column signal line connect It connects.
CN201811150192.9A 2018-09-29 2018-09-29 Fast discharge circuit Active CN109147705B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN109147705B CN109147705B (en) 2021-02-23

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070171177A1 (en) * 2006-01-20 2007-07-26 Samsung Electronics Co., Ltd. Driving device, display device, and method of driving the same
KR20080049342A (en) * 2006-11-30 2008-06-04 엘지디스플레이 주식회사 Lcd and drive method thereof
CN101217026A (en) * 2007-01-06 2008-07-09 三星电子株式会社 Liquid crystal display and method for eliminating afterimage thereof
CN102867491A (en) * 2012-09-03 2013-01-09 京东方科技集团股份有限公司 LCD (Liquid Crystal Display) panel drive circuit and method as well as display unit
CN106652884A (en) * 2017-03-23 2017-05-10 京东方科技集团股份有限公司 Fast discharge circuit, display device, fast discharge method and display control method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070171177A1 (en) * 2006-01-20 2007-07-26 Samsung Electronics Co., Ltd. Driving device, display device, and method of driving the same
KR20080049342A (en) * 2006-11-30 2008-06-04 엘지디스플레이 주식회사 Lcd and drive method thereof
CN101217026A (en) * 2007-01-06 2008-07-09 三星电子株式会社 Liquid crystal display and method for eliminating afterimage thereof
CN102867491A (en) * 2012-09-03 2013-01-09 京东方科技集团股份有限公司 LCD (Liquid Crystal Display) panel drive circuit and method as well as display unit
CN106652884A (en) * 2017-03-23 2017-05-10 京东方科技集团股份有限公司 Fast discharge circuit, display device, fast discharge method and display control method

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