CN104503113A - Liquid crystal display panel and display device - Google Patents
Liquid crystal display panel and display device Download PDFInfo
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- CN104503113A CN104503113A CN201510009304.9A CN201510009304A CN104503113A CN 104503113 A CN104503113 A CN 104503113A CN 201510009304 A CN201510009304 A CN 201510009304A CN 104503113 A CN104503113 A CN 104503113A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136204—Arrangements to prevent high voltage or static electricity failures
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a liquid crystal display panel and a display device and belongs to the technical field of liquid crystal display. The liquid crystal display panel and display device can solve the problem that an existing liquid crystal display panel displays residual images. The liquid crystal display panel comprises a plurality of public electrode wires, a plurality of crossly arranged data lines and grid lines, a source electrode drive unit, and at least one discharge unit, pixel units are defined at the crosses of the grid lines and data lines, each row of pixel units are connected with the same public electrode wire, the source electrode drive unit provides data signals for each data line, and each discharge unit is connected with one data line, one public electrode wire and one control signal wire and used for enabling the data line connected with the same to selectively conduct with the source electrode drive unit or the public electrode wire under the control of the control signals input by the control signal wire. The liquid crystal panel is capable of effectively releasing the residual charge so as to avoid the residual image display of the liquid crystal display panel.
Description
Technical field
The invention belongs to technical field of liquid crystal display, be specifically related to a kind of liquid crystal panel and display device.
Background technology
In recent years, liquid crystal display, because of its low-work voltage, low-power consumption, Low emissivity, little space occupancy and the frivolous advantage such as attractive in appearance, is constantly popularized, has been become market mainstream display device.At present, the requirement of people to liquid crystal display improves constantly, and particularly requires more and more higher to the display image quality of whole display.Wherein, image retention problem is one of most critical factor affecting image display quality.
Traditional liquid crystal panel is made up of two transparency carrier sandwiched liquid crystal layers.A substrate is formed with a plurality of data lines and many grid lines, described data line and grid line is arranged in a crossed manner limits multiple pixel cell, each described pixel cell comprises switch control element (as switching transistor) and pixel portion (comprising liquid crystal capacitance and memory capacitance), switch control element is for controlling the opening and closing (i.e. the charging and discharging of memory capacitance and liquid crystal capacitance) in pixel portion, thus deflect under the electric field action that formed at liquid crystal capacitance of liquid crystal in control display panels, and then realize the image display function of liquid crystal panel.Wherein, two pole plates of memory capacitance are normally made up of pixel electrode and public electrode, and two pole plates of liquid crystal capacitance are normally made up of liquid crystal cell.
As illustrated in fig. 1 and 2, the grid of switching transistor TFT is connected with grid line 1, the source electrode of switching transistor TFT is connected with data line 2, the drain electrode of switching transistor TFT is connected with one end of memory capacitance Cst and liquid crystal capacitance Clc, and memory capacitance Cst is connected with public electrode wire 3 with the other end of liquid crystal capacitance Clc.During display, switching transistor TFT opens by sweep signal Vg (n)/Vg (n-1) that grid line 1 exports, data-signal Vdata on data line 2 just can be sent to the drain electrode of switching transistor TFT from the source electrode of switching transistor TFT, memory capacitance Cst and liquid crystal capacitance Clc is charged, can be formed between two pole plates of the liquid crystal capacitance Clc of charging makes liquid crystal carry out the electric field deflected, thus realizes the image display of liquid crystal panel.
The electric field that liquid crystal is deflected has directivity, if do not changed direction of an electric field, direct current can be produced and block the problem such as effect (voltage difference is mainly distributed in oriented layer), liquid crystal fatigue, so need the frequent direction changing the electric field that liquid crystal capacitance Clc is formed, namely need to make electric field carry out reversal of poles, reversal of poles comprises frame reversion, some reversion, row reversion and row reversion.In the reversal of poles process of electric field, because stray capacitance Cgs in the electric leakage of switching transistor TFT and liquid crystal capacitance Clc is (namely as shown in the sequential chart of pixel electrode voltage Vc in Fig. 2, due to after certain a line pixel cell is completed by scanning, current potential on the grid line 1 of now this row pixel cell of gating becomes electronegative potential (or becoming noble potential from electronegative potential) from noble potential, saltus step will be produced at this moment pixel electrode voltage Vc, namely leaping voltage is Δ Vc, also just create stray capacitance Cgs) crosstalk the positive and negative charge on liquid crystal capacitance Clc two pole plates can be caused not offset completely, thus cause the generation of direct current residual charge (i.e. DC residual charge) on certain pole plate of liquid crystal capacitance Clc, as shown in Figure 2, this part residual charge is assembled, liquid crystal aligning can be made not reset into original state, form image retention.
Summary of the invention
Technical matters to be solved by this invention comprises, and there is above-mentioned problem for existing liquid crystal panel, and providing a kind of can discharge the residual charge in pixel cell, to improve liquid crystal panel and the display device of display effect.
The technical scheme that solution the technology of the present invention problem adopts is a kind of liquid crystal panel, it comprises many public electrode wires, a plurality of data lines arranged in a crossed manner and many grid lines, and source drive unit, limit pixel cell at described grid line and described data line crossover location place, described pixel cell of often going connects same public electrode wire, and described source drive unit provides data-signal for each described data line, described liquid crystal panel also comprises at least one discharge cell
Each described discharge cell is connected with a data line, a public electrode wire and a control signal wire, for under the control of control signal that inputs at control signal wire, make connected data line optionally with described source drive cell conduction or with described public electrode wire conducting.
Preferably, described liquid crystal panel comprises multiple discharge cell, the corresponding data line of each described discharge cell.
Preferably, the public electrode wire be connected with described discharge cell is one or more of arbitrarily in many public electrode wires.
Further preferably, the public electrode wire be connected with described discharge cell is the Article 1 public electrode wire in many public electrode wires.
Preferably, line by line described grid line is scanned, to complete the display to each frame picture, after often scanning 60 frame pictures, under the control of the control signal that described discharge cell inputs on described control signal wire, make connected described data line and described public electrode wire conducting.
Further preferably, under the control of the control signal that described discharge cell inputs on described control signal wire, the time of connected described data line and described public electrode wire conducting is made to be scanning one frame picture time used.
Preferably, described discharge cell comprises the first transistor and transistor seconds; Wherein, the one in the first transistor and transistor seconds is N-type transistor, and another one is P-type crystal pipe;
First pole of described the first transistor connects described source drive unit, second pole connects the first pole of described data line and described transistor seconds, control pole and connect the grid of described transistor seconds and described control signal wire, the second pole of described transistor seconds connects upper described public electrode wire.
Preferably, described pixel cell at least comprises switching transistor, liquid crystal capacitance and memory capacitance;
First pole connection data line of described switching transistor, the second pole connects the first end of described memory capacitance and liquid crystal capacitance, and control pole and connect grid line, described memory capacitance is connected public electrode wire with the second end of liquid crystal capacitance.
The technical scheme that solution the technology of the present invention problem adopts is a kind of display device, and it comprises above-mentioned liquid crystal panel.
The present invention has following beneficial effect:
Owing to adding at least one discharge cell in liquid crystal panel of the present invention, therefore, after data line and source drive cell conduction are carried out showing some frame pictures by discharge cell, discharge cell is by data line and public electrode wire conducting, by the two ends of liquid crystal capacitance and the shorted on both ends of memory capacitance, to form short-circuited conducting sleeve, liquid crystal capacitance neutralizes mutually with the electric charge at memory capacitance two ends, eliminate electric charge residual in liquid crystal capacitance and memory capacitance, thus make the display effect of liquid crystal panel better.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the pixel cell of existing liquid crystal panel;
Fig. 2 is the schematic diagram of the positive and negative driving of existing liquid crystal panel;
Fig. 3 is the schematic diagram of the liquid crystal panel of embodiments of the invention 1;
Fig. 4 is the sequential chart of the liquid crystal panel of embodiments of the invention 1 when normally showing;
Sequential chart when Fig. 5 is the liquid crystal panel electric charge release of embodiments of the invention 1;
Fig. 6 is a kind of structural representation of the discharge cell in the liquid crystal surface of embodiments of the invention 1.
Wherein Reference numeral is: 1, grid line; 2, data line; 3, public electrode wire; 4, source drive unit; 5, discharge cell; 6, control line signal wire.
Embodiment
For making those skilled in the art understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment 1:
As shown in Figure 3, the present embodiment provides a kind of liquid crystal panel, it comprises: many public electrode wires 3, many grid lines 1 arranged in a crossed manner and a plurality of data lines 2, source drive unit 4 and at least one discharge cell 5, pixel cell is limited at described grid line 1 and described data line 2 crossover location place, described pixel cell of often going connects same public electrode wire 3, described source drive unit 4 is each described data line 2 data-signal Vdata, each described discharge cell 5 and a data line 2, , public electrode wire 3 and a control signal wire 6, for under the control of control signal SEL that inputs at control signal wire 6, make connected data line 2 optionally with the conducting of described source drive unit 4 or with the conducting of described public electrode wire 3.
It will be understood by those skilled in the art that, in display panels, in each pixel cell, at least comprise switching transistor TFT, liquid crystal capacitance Clc (being made up of liquid crystal cell) and memory capacitance Cst (being made up of pixel electrode and public electrode); First pole connection data line 2, second pole of described switching transistor TFT connects the first end of described memory capacitance Cst and liquid crystal capacitance Clc, and control pole and connect grid line 1, described memory capacitance Cst is connected public electrode wire 3 with second end of liquid crystal capacitance Clc.Because in the electric leakage of switching transistor TFT and liquid crystal capacitance Clc, the crosstalk of stray capacitance can cause the positive and negative charge on liquid crystal capacitance Clc two pole plates not offset completely, thus cause the generation of direct current residual charge (i.e. DC residual charge) on certain pole plate of liquid crystal capacitance Clc, this part residual charge is assembled, liquid crystal aligning can be made not reset into original state, form image retention.And in the liquid crystal panel of the present embodiment, add at least one discharge cell 5, therefore, after data line 2 and source drive unit 4 conducting are carried out showing some frame pictures by discharge cell 5, discharge cell 5 is by data line 2 and public electrode wire 3 conducting, by the two ends of liquid crystal capacitance Clc and the shorted on both ends of memory capacitance Cst, to form short-circuited conducting sleeve, liquid crystal capacitance Clc neutralizes mutually with the electric charge at memory capacitance Cst two ends, eliminate electric charge residual in liquid crystal capacitance Clc and memory capacitance Cst, thus make the display effect of liquid crystal panel better.
Be understandable that, the liquid crystal panel of the present embodiment also comprises drive element of the grid, and it is for providing gated sweep signal Vg (n) for each grid line 1, with each grid line 1 of gating line by line when carrying out picture display; Certainly, those skilled in the art should know equally, and when display panel shows by liquid crystal, the common electric voltage Vcom that the public electrode of each pixel cell applies is identical, and therefore, all public electrode wires 3 link together.
Simultaneously, it should be noted that, described in the present embodiment " data line 2 optionally with the conducting of described source drive unit 4 or with the conducting of described public electrode wire 3 " refer to, when normally showing, discharge cell 5 under the control of control signal SEL by data line 2 and source drive unit 4 conducting, now No. 2, data line is passed to data line 2, for the display of picture by source drive unit 4; After drawing at interval of the some frames of display, discharge cell 5 under the control of control signal SEL by data line 2 public electrode wire 3 conducting together (ON time is the time of scanning one frame picture), to make the electric charge accumulated in the pixel cell that is connected with discharge cell 5 fully to discharge, thus display panels is avoided to occur the problem of image retention.
As a kind of optimal way in the present embodiment, in liquid crystal panel, be provided with multiple discharge cell 5, the corresponding data line 2 of each discharge cell 5.To make the residual charge in each pixel cell in display panel all can discharge fully, thus ensure liquid crystal panel preferably display effect.
Preferably, one or more of arbitrarily in many public electrode wires 3 of the public electrode wire 3 be connected with described discharge cell 5.Why so arrange be because, each public electrode wire 3 all links together, therefore which bar public electrode wire 3 public electrode wire 3 that no matter discharge cell 5 connects connects, or with many public electrode wires 3, or even to be connected with whole public electrode wire 3 and to be all fine, all can under the control of discharge cell 5 with data line 2 short circuit, to make the residual charge in each pixel cell in display panel all can discharge fully, thus ensure liquid crystal panel preferably display effect.Further preferably, the public electrode wire 3 be connected with described discharge cell 5 is the Article 1 public electrode wire 3 in many public electrode wires 3, now can reduce the area taking viewing area in display panel of discharge cell 5, thus improve the aperture opening ratio of display panel.It should be noted that, the public electrode wire 3 in display panel normally be arranged in parallel with grid line 1, and above-mentioned Article 1 public electrode wire 3 refers to, the public electrode wire 3 be connected with the first row pixel cell.
Preferably, line by line described grid line 1 is scanned, to complete the display to each frame picture, after often scanning 60 frame pictures, under the control of the control signal SEL that described discharge cell 5 inputs on described control signal wire 6, make connected described data line 2 and the conducting of described public electrode wire 3.Namely at interval of display 60 frame picture, liquid crystal panel is carried out to the release of residual charge, to avoid picture display at any time to increase, residual charge also increases thereupon, causes the problem of display panels image retention.Certainly, also can set as the case may be and at interval of after display one framing picture, the residual charge of liquid crystal panel is once discharged.
Further preferably, under the control of the control signal SEL that discharge cell 5 inputs on described control signal wire 6, make connected described data line 2 and the time of described public electrode wire 3 conducting be scanning one frame picture time used, the residual charge of whole liquid crystal panel now can be ensured fully to discharge.
Preferably, the liquid crystal panel in the present embodiment, described discharge cell 5 adopts switching logic, and switching logic is selector switch, can the control line of control signal optionally by data line 2 and source drive unit 4 or with public electrode wire 3 conducting.
In order to the invention of clearer expression the present embodiment is intended to, composition graphs 3 is described.
This liquid crystal panel comprises many grid lines 1 arranged in a crossed manner and a plurality of data lines 2, many the public electrode wires 3 be arranged in parallel with grid line 1, the source drive unit 4 be connected with each data line 2, and data line 2 multiple discharge cell 5 one to one, for controlling the control signal wire 6 of multiple discharge cell 5, pixel cell is limited at the crossover location place of grid line 1 and data line 2, each pixel cell includes switching transistor TFT, memory capacitance Cst and liquid crystal capacitance Clc, the wherein first pole connection data line 2 of switching transistor TFT, second pole connects the first end of described memory capacitance Cst and liquid crystal capacitance Clc, control pole and connect grid line 1, described memory capacitance Cst is connected public electrode wire 3 with second end of liquid crystal capacitance Clc.
The concrete work of liquid crystal panel is as follows:
When carrying out each frame picture and normally showing, as shown in Figure 4, when the first frame picture scanning, to the first row grid line 1 incoming frame start signal STV, afterwards to the grid line input gated sweep signal CPV on display panel, a control signal SEL is inputted (such as to control signal wire 6, logic-high signal), data line 2 and source drive unit 4 are electrically connected to control each discharge cell 5, the data-signal Vdata that source drive unit 4 is exported is transferred to the pixel cell of each data line 2 connection by corresponding data line 2.Now, the electric field that liquid crystal is deflected has directivity, if do not changed direction of an electric field, direct current can be produced and block the problem such as effect (voltage difference is mainly distributed in oriented layer), liquid crystal fatigue, so need the frequent direction changing the electric field that liquid crystal capacitance Clc is formed, namely need to make electric field carry out reversal of poles, reversal of poles comprises frame reversion, some reversion, row reversion and row reversion.In the reversal of poles process of electric field, because in the electric leakage of switching transistor TFT and liquid crystal capacitance Clc, the crosstalk of stray capacitance can cause the positive and negative charge on liquid crystal capacitance Clc two pole plates not offset completely, thus cause the generation of direct current residual charge (i.e. DC residual charge) on certain pole plate of liquid crystal capacitance Clc.Therefore, after the picture showing a framing, as shown in Figure 5, signal on each grid line is still the same with during normal scan, another control signal SEL is inputted (such as to control signal wire 6, logic-low signal), to control each discharge cell 5, the public electrode wire 3 of data line 2 with the first row is electrically connected, the two ends of liquid crystal capacitance Clc and the shorted on both ends of memory capacitance Cst, to form short-circuited conducting sleeve, namely the data-signal Vdata on data line equals the voltage Vcom on public electrode wire, liquid crystal capacitance Clc neutralizes mutually with the electric charge at memory capacitance Cst two ends, eliminate electric charge residual in liquid crystal capacitance Clc and memory capacitance Cst, thus make the display effect of liquid crystal panel better.
The preferred implementation of one as the present embodiment, as shown in Figure 6, discharge cell 5 comprises the first transistor and transistor seconds; Wherein, the one in the first transistor and transistor seconds is N-type transistor, and another one is P-type crystal pipe; First pole of described the first transistor connects described source drive unit 4, second pole connects the first pole of described data line 2 and described transistor seconds, grid connects grid and the described control signal wire 6 of described transistor seconds, and the second pole of described transistor seconds connects upper described public electrode wire 3.
The structure of this kind of discharge cell is simple, is easy to realize.
Concrete, with the first transistor N for transistor npn npn, transistor seconds is P type be transistor is that example is described.
When carrying out each frame picture and normally showing, be a high level signal to control signal wire 6 input control signal SEL, now the first transistor is opened, and transistor seconds turns off, source drive unit and data line 2 are electrically connected, for connected data line 2 provides data-signal Vdata.After the picture showing a framing, be low level signal to control signal wire 6 input control signal SEL, now the first transistor turns off, transistor seconds is opened, and data line 2 and public electrode wire 3 are electrically connected, the two ends of liquid crystal capacitance Clc and the shorted on both ends of memory capacitance Cst, to form short-circuited conducting sleeve, liquid crystal capacitance Clc neutralizes mutually with the electric charge at memory capacitance Cst two ends, eliminates electric charge residual in liquid crystal capacitance Clc and memory capacitance Cst, thus makes the display effect of liquid crystal panel better.
It should be noted that, only comprise a N-type transistor for discharge cell in the present embodiment and a P-type crystal pipe is described, but do not form the restriction to discharge cell in the present embodiment.Meanwhile, the transistor adopted in the embodiment of the present invention can be the identity unit of thin film transistor (TFT) or field effect transistor or other characteristics, because the source electrode of transistor that adopts and drain electrode are symmetrical, so its source electrode, drain electrode are as broad as long.In embodiments of the present invention, for distinguishing source electrode and the drain electrode of transistor, wherein will be called the first pole in a pole, another pole is called the second pole, and grid is called control pole.In addition distinguish transistor can be divided into N-type and P type according to the characteristic of transistor; be N-type transistor with the first transistor in above-described embodiment; transistor seconds is that P-type crystal pipe is described; it is conceivable that the first transistor is P-type crystal pipe; transistor seconds is that N-type transistor realizes being that those skilled in the art can expect easily not paying under creative work prerequisite, is therefore also in the protection domain of the embodiment of the present invention.
Embodiment 2:
The present embodiment provides a kind of display device, and this display device comprises the liquid crystal panel in embodiment 1.
By adopting the display panels in embodiment 1, residual charge in this display device is thoroughly discharged, thus make this display device avoid occurring image retention and ghost in start, shutdown and procedure for displaying, and then ensure that the display quality of this display device.
Display device provided by the present invention can be the liquid crystal indicator of any pattern such as TN, ADS, IPS, LTPS.This display device can be any product or parts with Presentation Function such as liquid crystal panel, LCD TV, display, mobile phone, navigating instrument.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present invention is described and adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (9)
1. a liquid crystal panel, it comprises many public electrode wires, a plurality of data lines arranged in a crossed manner and many grid lines, and source drive unit, limit pixel cell at described grid line and described data line crossover location place, described pixel cell of often going connects same public electrode wire, described source drive unit provides data-signal for each described data line, it is characterized in that, described liquid crystal panel also comprises at least one discharge cell
Each described discharge cell is connected with a data line, a public electrode wire and a control signal wire, for under the control of control signal that inputs at control signal wire, make connected data line optionally with described source drive cell conduction or with described public electrode wire conducting.
2. liquid crystal panel according to claim 1, is characterized in that, described liquid crystal panel comprises multiple discharge cell, the corresponding data line of each described discharge cell.
3. liquid crystal panel according to claim 1, is characterized in that, the public electrode wire be connected with described discharge cell is one or more of arbitrarily in many public electrode wires.
4. liquid crystal panel according to claim 3, is characterized in that, the public electrode wire be connected with described discharge cell is the Article 1 public electrode wire in many public electrode wires.
5. liquid crystal panel according to claim 1, it is characterized in that, line by line described grid line is scanned, to complete the display to each frame picture, after often scanning 60 frame pictures, under the control of the control signal that described discharge cell inputs on described control signal wire, make connected described data line and described public electrode wire conducting.
6. liquid crystal panel according to claim 5, it is characterized in that, under the control of the control signal that described discharge cell inputs on described control signal wire, the time of connected described data line and described public electrode wire conducting is made to be scanning one frame picture time used.
7. according to the liquid crystal panel in claim 1-6 described in any one, it is characterized in that, described discharge cell comprises the first transistor and transistor seconds; Wherein, the one in the first transistor and transistor seconds is N-type transistor, and another one is P-type crystal pipe;
First pole of described the first transistor connects described source drive unit, second pole connects the first pole of described data line and described transistor seconds, control pole and connect the grid of described transistor seconds and described control signal wire, the second pole of described transistor seconds connects upper described public electrode wire.
8. liquid crystal panel according to claim 1, is characterized in that, described pixel cell at least comprises switching transistor, liquid crystal capacitance and memory capacitance;
First pole connection data line of described switching transistor, the second pole connects the first end of described memory capacitance and liquid crystal capacitance, and control pole and connect grid line, described memory capacitance is connected public electrode wire with the second end of liquid crystal capacitance.
9. a display device, is characterized in that, described display device comprises the liquid crystal panel in claim 1-8 described in any one.
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| CN201510009304.9A CN104503113B (en) | 2015-01-08 | 2015-01-08 | Liquid crystal panel and display device |
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| CN201510009304.9A CN104503113B (en) | 2015-01-08 | 2015-01-08 | Liquid crystal panel and display device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489182A (en) * | 2016-01-05 | 2016-04-13 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN105652539A (en) * | 2016-03-15 | 2016-06-08 | 深圳市华星光电技术有限公司 | Liquid crystal display device and liquid crystal display panel thereof |
| CN107274851A (en) * | 2017-08-14 | 2017-10-20 | 京东方科技集团股份有限公司 | display panel and its driving method and display device |
| CN107464537A (en) * | 2017-08-18 | 2017-12-12 | 深圳市华星光电技术有限公司 | Driving method for liquid crystal display panel |
| CN108426703A (en) * | 2018-03-15 | 2018-08-21 | 京东方科技集团股份有限公司 | Lighting test circuit and lighting test method |
| CN108492792A (en) * | 2018-03-30 | 2018-09-04 | 京东方科技集团股份有限公司 | The shutdown discharge circuit and its driving method of liquid crystal display, liquid crystal display |
| CN108962163A (en) * | 2018-07-13 | 2018-12-07 | 京东方科技集团股份有限公司 | Display driver circuit, display panel and display device |
| WO2019015005A1 (en) * | 2017-07-17 | 2019-01-24 | 深圳市华星光电半导体显示技术有限公司 | Array substrate and display panel |
| WO2019137077A1 (en) * | 2018-01-09 | 2019-07-18 | 惠科股份有限公司 | Display device and power-off driving method therefor |
| CN112652276A (en) * | 2020-12-31 | 2021-04-13 | 绵阳惠科光电科技有限公司 | Display panel, driving method thereof and display device |
| CN114283757A (en) * | 2021-12-29 | 2022-04-05 | 绵阳惠科光电科技有限公司 | Drive circuit and display device |
| CN114694614A (en) * | 2022-04-25 | 2022-07-01 | 北京奕斯伟计算技术有限公司 | Display driving method and system and display terminal |
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