CN109147705B - Fast discharge circuit - Google Patents

Fast discharge circuit Download PDF

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Publication number
CN109147705B
CN109147705B CN201811150192.9A CN201811150192A CN109147705B CN 109147705 B CN109147705 B CN 109147705B CN 201811150192 A CN201811150192 A CN 201811150192A CN 109147705 B CN109147705 B CN 109147705B
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China
Prior art keywords
signal line
lighting
reference voltage
voltage signal
switch tube
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CN201811150192.9A
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CN109147705A (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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    • 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 provides a fast discharge circuit, comprising: a reference voltage signal line connected to the display panel; a lighting signal line connected to the display panel; and the first switch module is respectively connected with the reference voltage signal line and the spot light signal line and used for switching on or switching off the connection between the reference voltage signal line and the spot light signal line. According to the rapid discharge circuit, when the display panel discharges rapidly, the first switch module is connected between the reference voltage signal line and the lighting signal line, so that the reference voltage signal line and the lighting signal line are short-circuited, and the electrodes connected with the reference voltage signal line and the lighting signal line on the display panel are correspondingly short-circuited, so that positive and negative charges charged to the two electrodes are mutually neutralized, rapid discharge is realized, the display panel can discharge cleanly in a module section and a cellET section, liquid crystal polarization caused by unclean charge discharge is prevented, and the problem of gray scale jitter of the module section is avoided.

Description

Fast discharge circuit
Technical Field
The invention relates to the field of circuits, in particular to a quick discharge circuit.
Background
A Display panel of a Low Temperature polysilicon technology liquid Crystal Display (LTPSLCD for short) has a phenomenon of poor gray scale jitter due to the charge residue problem, and further optimizing the fast discharge function of the Display panel is a problem which needs to be solved urgently.
In the related art, the fast discharge of the display panel is usually realized by pulling up the GOA signal and grounding the Source and VCOM signals, but this method is only suitable for the discharge of the module segment, and for the CellET segment, the output PIN of the lighting signal Source cannot realize the switching between the analog signal and the GND, and currently, the discharge can be realized only by pulling up the GOA signal and discharging the Source (ctd) and VCOM to 0V. However, due to the error of the signal source output, the actually output signal has an error of several hundred millivolts, which results in unclean discharge of the charges of the display panel in the CellET segment. The electric field formed by these charges polarizes the liquid crystal for a long time, resulting in gray scale dithering of the display panel at the module section.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, an object of the present invention is to provide a fast discharge circuit, wherein when the display panel displays normally, the first switch module disconnects the reference voltage signal line from the lighting signal line, so that the display panel operates normally; when the display panel discharges rapidly, the first switch module switches on the connection between the reference voltage signal line and the lighting signal line, so that the reference voltage signal line and the lighting signal line are short-circuited, and correspondingly, the electrodes connected with the reference voltage signal line and the lighting signal line on the display panel are short-circuited, so that positive and negative charges charged to the two electrodes are mutually neutralized, rapid discharge is realized, the display panel can discharge cleanly in a module section and a cellET section, liquid crystal polarization caused by incomplete discharge of the charges is prevented, and the problem of gray scale jitter of the module section is avoided.
To achieve the above object, an embodiment of the present invention provides a fast discharge circuit, including:
a reference voltage signal line connected to the display panel;
a lighting signal line connected to the display panel;
and the first switch module is respectively connected with the reference voltage signal line and the lighting signal line and used for switching on or switching off the connection between the reference voltage signal line and the lighting signal line.
According to the rapid discharge circuit provided by the embodiment of the invention, when the display panel normally displays, the first switch module disconnects the connection between the reference voltage signal line and the lighting signal line, so that the display panel normally works; when the display panel discharges rapidly, the first switch module switches on the connection between the reference voltage signal line and the lighting signal line, so that the reference voltage signal line and the lighting signal line are short-circuited, and correspondingly, the electrodes connected with the reference voltage signal line and the lighting signal line on the display panel are short-circuited, so that positive and negative charges charged to the two electrodes are mutually neutralized, rapid discharge is realized, the display panel can discharge cleanly in the module section and the cellET section, liquid crystal polarization caused by incomplete discharge of the charges is prevented, and the problem of gray scale jitter of the module section is avoided.
According to an embodiment of the present invention, the lighting signal lines include: a lighting even-numbered row signal line connected with an even-numbered row electrode of the display panel; and the lighting odd column signal line is connected with the odd column electrode of the display panel.
According to one embodiment of the invention, the first switching module comprises: at least one first switching tube, wherein the first switching tube is respectively connected with the reference voltage signal line and the lighting even-numbered columns of signal lines; and the second switch tube is respectively connected with the reference voltage signal line and the lighting odd-numbered columns of signal lines.
According to an embodiment of the present invention, the fast discharge circuit further includes: a first switching tube control signal line; the control end of the first switch tube is connected with the first switch tube control signal line, the first end of the first switch tube is connected with the reference voltage signal line, and the second end of the first switch tube is connected with the lighting even-numbered signal lines; the control end of the second switch tube is connected with the first switch tube control signal line, the first end of the second switch tube is connected with the reference voltage signal line, and the second end of the second switch tube is connected with the lighting odd-numbered columns of signal lines.
According to an embodiment of the present invention, the fast discharge circuit further includes: and the second switch module is respectively connected with the reference voltage signal source, the lighting signal source, the reference voltage signal line and the lighting signal line and is used for switching on or off the connection between the reference voltage signal source and the reference voltage signal line and switching on or off the connection between the lighting signal source and the lighting signal line.
According to an embodiment of the present invention, the lighting signal source includes: a lighting even-row signal source and a lighting odd-row signal source; the second switch module includes: at least one third switch tube, wherein the third switch tube is respectively connected with the reference voltage signal source and the reference voltage signal line; at least one fourth switch tube, wherein the fourth switch tube is respectively connected with the lighting even-numbered row signal source and the lighting even-numbered row signal line; and the fifth switch tube is respectively connected with the lighting odd-numbered row signal source and the lighting odd-numbered row signal line.
According to an embodiment of the present invention, the fast discharge circuit further includes: the second switching tube controls the signal line; the control end of the third switching tube is connected with the control signal line of the second switching tube, the first end of the third switching tube is connected with the reference voltage signal source, and the second end of the third switching tube is connected with the reference voltage signal line; the control end of the fourth switch tube is connected with the control signal line of the second switch tube, the first end of the fourth switch tube is connected with the lighting even-numbered row signal source, and the second end of the fourth switch tube is connected with the lighting even-numbered row signal line; the control end of the fifth switch tube is connected with the control signal line of the second switch tube, the first end of the fifth switch tube is connected with the signal source of the lighting odd-numbered columns, and the second end of the fifth switch tube is connected with the signal line of the lighting odd-numbered columns.
Drawings
FIG. 1 is a block diagram of a fast discharge circuit according to one embodiment of the present invention;
fig. 2 is a circuit diagram of a fast discharge circuit according to one embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The fast discharge circuit of the embodiment of the present invention is described below with reference to the drawings.
Fig. 1 is a block diagram of a fast discharge circuit according to an embodiment of the present invention, as shown in fig. 1, the fast discharge circuit including:
a reference voltage signal line VCOM connected to the display panel 11;
a lighting signal line CTD connected to the display panel 11;
the first switch module 12, the first switch module 12 is respectively connected to the reference voltage signal line VCOM and the lighting signal line CTD for connecting or disconnecting the connection between the reference voltage signal line VCOM and the lighting signal line CTD.
In the embodiment of the present invention, the reference voltage line VCOM is connected to the display panel 11, and specifically may be connected to the C-ITO electrode on the display panel 11 shown in fig. 1; the lighting signal line CTD is connected to the display panel 11, and may be specifically connected to a P-ITO electrode on the display panel 11 as shown in fig. 1. When the display panel 11 displays normally, the first switch module 12 disconnects the reference voltage signal line VCOM from the lighting signal line CTD, so that the display panel 11 works normally; when the display panel 11 discharges rapidly, the first switch module 12 connects the reference voltage signal line VCOM with the lighting signal line CTD, so as to short-circuit the reference voltage signal line VCOM with the lighting signal line CTD, and correspondingly short-circuit the P-ITO electrode and the C-ITO electrode on the display panel 11, thereby neutralizing the positive and negative charges charged to the two electrodes, and implementing rapid discharge, so that the display panel 11 can discharge cleanly in both the module section and the CellET section, and preventing liquid crystal polarization caused by unclean charge discharge, thereby avoiding the problem of gray scale jitter in the module section.
According to the rapid discharge circuit provided by the embodiment of the invention, when the display panel normally displays, the first switch module disconnects the connection between the reference voltage signal line and the lighting signal line, so that the display panel normally works; when the display panel discharges rapidly, the first switch module switches on the connection between the reference voltage signal line and the lighting signal line, so that the reference voltage signal line and the lighting signal line are short-circuited, and correspondingly, the electrodes connected with the reference voltage signal line and the lighting signal line on the display panel are short-circuited, so that positive and negative charges charged to the two electrodes are mutually neutralized, rapid discharge is realized, the display panel can discharge cleanly in the module section and the cellET section, liquid crystal polarization caused by incomplete discharge of the charges is prevented, and the problem of gray scale jitter of the module section is avoided.
Fig. 2 is a circuit diagram of a fast discharge circuit according to an embodiment of the present invention, and as shown in fig. 2, the lighting signal line CTD includes, based on the embodiment shown in fig. 1: the lighting even-numbered column signal line CTD _ E is connected with the even-numbered column electrode P-ITO _ E of the display panel 11; the lighting odd column signal line CTD _ O is connected to the odd column electrode P-ITO _ O of the display panel 11.
Further, the first switch module 12 may specifically include: at least one first switching tube Q1, the first switching tube Q1 being connected to the reference voltage signal line VCOM and the even-numbered column signal line CTD _ E, respectively; at least one second switching tube Q2, the second switching tube Q2 are connected to the reference voltage signal line VCOM and the odd-numbered column signal line CTD _ O, respectively.
Further, on the basis of the embodiment shown in fig. 1, the fast discharge circuit may further include: the first switching tube controls a signal line discharge switch; a control end of the first switch tube Q1 is connected to a first switch tube control signal line discharge switch, a first end of the first switch tube Q1 is connected to a reference voltage signal line VCOM, and a second end of the first switch tube Q1 is connected to a lighting even column signal line CTD _ E; a control terminal of the second switching tube Q2 is connected to the first switching tube control signal line discharge switch, a first terminal of the second switching tube Q2 is connected to the reference voltage signal line VCOM, and a second terminal Q2 of the second switching tube is connected to the lighting odd column signal line CTD _ O.
In the embodiment of the present invention, two first switching tubes Q1 and two second switching tubes Q2 shown in fig. 2 are taken as an example. The first switch tube controls the signal line discharge switch to control the Q1, Q2 to be turned on and off. When the display panel 11 displays normally, the first switch tube control signal line dischargepswitch outputs the off control signal to the control terminal of Q1 and Q2, and controls Q1 and Q2 to be turned off, so that the reference voltage signal line VCOM is disconnected from the lighting even column signal line CTD _ E and the lighting odd column signal line CTD _ O, and the display panel 11 can display normally. When the display panel 11 discharges rapidly, the first switch tube control signal line discharge switch outputs the on control signal to the control terminal of Q1, Q2, and controls Q1, Q2 to be on, thereby communicating the reference voltage signal line VCOM with the lighting even-numbered column signal lines CTD _ E and the lighting odd-numbered column signal lines CTD _ O, short-circuiting the reference voltage signal line VCOM with the lighting even-numbered column signal lines CTD _ E and the lighting odd-numbered column signal lines CTD _ O, and correspondingly short-circuiting the C-ITO electrodes with the P-ITO _ E and the P-ITO _ O electrodes on the display panel, thereby making the positive and negative charges charged to the C-ITO electrode and the P-ITO-E electrode and the P-ITO-O electrode mutually neutralized, the rapid discharge is realized, so that the display panel can be completely discharged in the module section and the CellET section, and the liquid crystal polarization caused by incomplete discharge of electric charges is prevented, thereby avoiding the problem of gray scale jitter of the module section. As a possible implementation, the first switch tube control signal line DischargeSwitch may turn off Q1 and Q2 by providing a low level to Q1 and Q2 gates-8V, and turn on Q1 and Q2 by providing a high level to Q1 and Q2 gates +8V, where Q1 and Q68536 are specifically Metal Oxide Semiconductor transistors (MOS transistors for short), the control terminals of Q1 and Q2 are specifically gates of MOS transistors, the first terminals of Q1 and Q2 are specifically sources (drains) of MOS transistors, and the second terminals of Q1 and Q2 are specifically drains (sources) of MOS transistors.
Further, on the basis of the embodiment shown in fig. 1, the fast discharge circuit may further include: and a second switch module 13, the second switch module 13 being respectively connected to the reference voltage signal source S-VCOM, the lighting signal source 14, the reference voltage signal line VCOM, and the lighting signal line CTD, for turning on or off a connection between the reference voltage signal source S-VCOM and the reference voltage signal line VCOM, and turning on or off a connection between the lighting signal source 14 and the lighting signal line CTD.
The lighting signal source 14 includes: the lighting even-row signal source S-CTD _ E and the lighting odd-row signal source S-CTD _ O; the second switch module 13 includes: at least one third switch tube Q3, the third switch tube Q3 is respectively connected with the reference voltage signal source S-VCOM and the reference voltage signal line VCOM; at least one fourth switch tube Q4, wherein the fourth switch tube Q4 is respectively connected with the lighting even-numbered column signal source S-CTD _ E and the lighting even-numbered column signal line CTD _ E; and at least one fifth switching tube Q5, the fifth switching tube Q5 being connected to the lighting odd column signal source S-CTD _ O and the lighting odd column signal line CTD _ O, respectively.
Further, on the basis of the embodiment shown in fig. 1, the fast discharge circuit further includes: a second switching tube control signal line CT Switch; a control end of the third Switch tube Q3 is connected to the second Switch tube control signal line CT Switch, a first end of the third Switch tube Q3 is connected to the reference voltage signal source S-VCOM, and a second end of the third Switch tube Q3 is connected to the reference voltage signal line VCOM; the control end of a fourth Switch tube Q4 is connected with a second Switch tube control signal line CT Switch, the first end of the fourth Switch tube Q4 is connected with a lighting even column signal source S-CTD _ E, and the second end of the fourth Switch tube Q4 is connected with a lighting even column signal line CTD _ E; a control terminal of the fifth switching tube Q5 is connected to the second switching tube control signal line CT Switch, a first terminal of the fifth switching tube Q5 is connected to the lighting odd column signal source S-CTD _ O, and a second terminal of the fifth switching tube Q5 is connected to the lighting odd column signal line CTD _ O.
In the embodiment of the present invention, two third switching tubes Q3, two fourth switching tubes Q4, and two fifth switching tubes Q5 shown in fig. 2 are taken as examples. The second Switch tube control signal line CT Switch is used for controlling the on and off of Q3, Q4 and Q5. When the display panel 11 displays normally, the second Switch tube control signal line CT Switch outputs the turn-on control signal to the control terminals of Q3, Q4, and Q5, and controls Q3, Q4, and Q5 to turn on, so that the reference voltage signal source S-VCOM, the lighting even column signal source S-CTD _ E, and the lighting odd column signal source S-CTD _ O can output the corresponding signals to the reference voltage signal line VCOM, the lighting even column signal line CTD _ E, and the lighting odd column signal line CTD _ O, respectively, and the display panel 11 can display normally; when the display panel 11 discharges rapidly, the second Switch tube control signal line CT Switch outputs the off control signal to the control terminals of Q3, Q4, and Q5, and controls Q3, Q4, and Q5 to turn off, thereby stopping the reference voltage signal source S-VCOM, and the lighting even column signal source S-CTD _ E and the lighting odd column signal source S-CTD _ O output the corresponding signals to the reference voltage signal line VCOM, the lighting even column signal line CTD _ E, and the lighting odd column signal line CTD _ O. As a possible implementation, the second Switch tube control signal line CT Switch may turn off Q3, Q6324, and Q5 by giving a low level to the gates of Q3, Q4, and Q5V, and turn on Q3, Q4, and Q5 by giving a high level to the gates of Q3, Q9, and Q5V, and turn on Q3, Q4, and Q5 by giving a high level to the gates of Q3, Q639, and Q5 + 8V.
According to the rapid discharge circuit provided by the embodiment of the invention, when the display panel normally displays, the first switch module disconnects the connection between the reference voltage signal line and the lighting signal line, so that the display panel normally works; when the display panel discharges rapidly, the first switch module switches on the connection between the reference voltage signal line and the lighting signal line, so that the reference voltage signal line and the lighting signal line are short-circuited, and correspondingly, the electrodes connected with the reference voltage signal line and the lighting signal line on the display panel are short-circuited, so that positive and negative charges charged to the two electrodes are mutually neutralized, rapid discharge is realized, the display panel can discharge cleanly in the module section and the cellET section, liquid crystal polarization caused by incomplete discharge of the charges is prevented, and the problem of gray scale jitter of the module section is avoided.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (5)

1. A fast discharge circuit, comprising:
a reference voltage signal line connected to the display panel;
a lighting signal line connected to the display panel;
a first switch module connected to the reference voltage signal line and the lighting signal line, respectively, for turning on or off the connection between the reference voltage signal line and the lighting signal line;
wherein the lighting signal line includes:
a lighting even-numbered row signal line connected with an even-numbered row electrode of the display panel;
a lighting odd column signal line connected with an odd column electrode of the display panel;
the quick discharge circuit further comprises:
and the second switch module is respectively connected with the reference voltage signal source, the lighting signal source, the reference voltage signal line and the lighting signal line and is used for switching on or off the connection between the reference voltage signal source and the reference voltage signal line and switching on or off the connection between the lighting signal source and the lighting signal line.
2. The fast discharge circuit of claim 1, wherein the first switching module comprises:
at least one first switching tube, wherein the first switching tube is respectively connected with the reference voltage signal line and the lighting even-numbered columns of signal lines;
and the second switch tube is respectively connected with the reference voltage signal line and the lighting odd-numbered columns of signal lines.
3. The fast discharge circuit of claim 2, further comprising: a first switching tube control signal line;
the control end of the first switch tube is connected with the first switch tube control signal line, the first end of the first switch tube is connected with the reference voltage signal line, and the second end of the first switch tube is connected with the lighting even-numbered signal lines;
the control end of the second switch tube is connected with the first switch tube control signal line, the first end of the second switch tube is connected with the reference voltage signal line, and the second end of the second switch tube is connected with the lighting odd-numbered columns of signal lines.
4. The fast discharge circuit of claim 1, wherein the ignition signal source comprises: a lighting even-row signal source and a lighting odd-row signal source;
the second switch module includes:
at least one third switch tube, wherein the third switch tube is respectively connected with the reference voltage signal source and the reference voltage signal line;
at least one fourth switch tube, wherein the fourth switch tube is respectively connected with the lighting even-numbered row signal source and the lighting even-numbered row signal line;
and the fifth switch tube is respectively connected with the lighting odd-numbered row signal source and the lighting odd-numbered row signal line.
5. The fast discharge circuit of claim 4, further comprising: the second switching tube controls the signal line;
the control end of the third switching tube is connected with the control signal line of the second switching tube, the first end of the third switching tube is connected with the reference voltage signal source, and the second end of the third switching tube is connected with the reference voltage signal line;
the control end of the fourth switch tube is connected with the control signal line of the second switch tube, the first end of the fourth switch tube is connected with the lighting even-numbered row signal source, and the second end of the fourth switch tube is connected with the lighting even-numbered row signal line;
the control end of the fifth switch tube is connected with the control signal line of the second switch tube, the first end of the fifth switch tube is connected with the signal source of the lighting odd-numbered columns, and the second end of the fifth switch tube is connected with the signal line of the lighting odd-numbered columns.
CN201811150192.9A 2018-09-29 2018-09-29 Fast discharge circuit Active CN109147705B (en)

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Publication number Priority date Publication date Assignee Title
KR101219044B1 (en) * 2006-01-20 2013-01-09 삼성디스플레이 주식회사 DRIVING DEVICE, DISPLAY DEVICE having the same and DRIVING MATHOD of the same
KR101308442B1 (en) * 2006-11-30 2013-10-04 엘지디스플레이 주식회사 LCD and drive method thereof
KR20080064928A (en) * 2007-01-06 2008-07-10 삼성전자주식회사 Liquid crystal display and method for eliminating afterimage thereof
CN102867491B (en) * 2012-09-03 2014-12-10 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
CN106652884B (en) * 2017-03-23 2018-12-21 京东方科技集团股份有限公司 Quick discharging circuit, display device, repid discharge method and display control method

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