CN105372893B - A kind of pixel-driving circuit, array substrate and liquid crystal display device - Google Patents
A kind of pixel-driving circuit, array substrate and liquid crystal display device Download PDFInfo
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- CN105372893B CN105372893B CN201510983531.1A CN201510983531A CN105372893B CN 105372893 B CN105372893 B CN 105372893B CN 201510983531 A CN201510983531 A CN 201510983531A CN 105372893 B CN105372893 B CN 105372893B
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- transistor
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- gating
- driving circuit
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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
- G02F1/136227—Through-hole connection of the pixel electrode to the active element through an insulation layer
-
- 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
-
- 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
- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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- Physics & Mathematics (AREA)
- 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)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses a kind of pixel-driving circuits comprising: a kind of pixel-driving circuit comprising: the first gating line, the second gating line, data line, the first transistor, second transistor, third transistor and pixel electrode.Invention additionally discloses a kind of array substrates and liquid crystal display device using the display pixel.The present invention can increase switching circuit resistance by three transistor arrangements, reduce leakage current, be conducive to the holding for showing picture；Under low frequency driving signal, reducing the deterioration on transistor influences；It solves in existing display panel when reducing the frequency of display module, the problem of transistor shut-in time increases, transistor deterioration after lasting power-up, leakage current increases.
Description
Technical field
The present invention relates to field of liquid crystal display, more particularly to a kind of pixel-driving circuit, array substrate and liquid crystal
Showing device.
Background technique
With popularizing for wearable product, user is higher and higher to the power consumption requirements of product, and wherein display module is to influence
One factor of power consumption.In the prior art, it will lead to transistor deterioration because transistor is on or off for a long time,
The normal display of display module is influenced, and uses driving signal frequency lower, the operating time of gating line is longer, and transistor is in
It is more long to open or close state, will lead to transistor deterioration.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the present invention provides a kind of novel pixel-driving circuits, lead to
Three transistor arrangements are crossed, switching circuit resistance can be increased, reduce leakage current, are conducive to the holding for showing picture；In low frequency
Under driving signal, reducing the deterioration on transistor influences；It solves in existing display panel when reducing the frequency of display module,
The problem of transistor shut-in time increases, transistor deterioration after lasting power-up, leakage current increases.The present invention also provides one kind to make
With the array substrate and liquid crystal display device of the display pixel.
The technical problems to be solved by the invention are achieved by the following technical programs:
A kind of pixel-driving circuit comprising: the first gating line, the second gating line, data line, the first transistor, second
Transistor, third transistor and pixel electrode, wherein
The first transistor has the gate terminal of the second gating line of connection, connects the source terminal of data line；
The second transistor, have connection the first gating line gate terminal, connect pixel electrode drain electrode end and
Connect the source terminal of the drain electrode end of the first transistor；
The third transistor has drain electrode end, the connection first crystal of the pixel electrode of connection light-emitting component
The source terminal and gate terminal of the source terminal of the drain electrode end of pipe and the second transistor.
Further, the first transistor and/or second transistor and/or third transistor are A-Si, LTPS, metal
Oxide, organic tft.
A kind of array substrate comprising several pixel units of matrix distribution, further include above-mentioned pixel-driving circuit.
A kind of liquid crystal display device, including above-mentioned array substrate.
Further, the display pattern of the display panel be often positive display pattern, normally-black display pattern, through mode,
Semi-transparent semi-reflecting mode, be all-trans any one of mode.
The invention has the following beneficial effects: by three transistor arrangements, switching circuit resistance can be increased, reduce electric leakage
Stream is conducive to the holding for showing picture；Under low frequency driving signal, reducing the deterioration on transistor influences；It solves existing
In display panel when reducing the frequency of display module, the transistor shut-in time increases, transistor deterioration after lasting power-up, electric leakage
The problem of stream increases.One of transistor is individually opened using normal driving frequency (such as 60Hz) in anti-deterioration area, in this way
Transistor deterioration can be prevented, while transistor can also play closing function, prevent pixel from leaking electricity, will not influence display quality.
The channel width-over-length ratio example of three transistors can be adjusted according to Pixel Dimensions.The transistor of this display pixel includes using technique
But be not limited to A-Si(monocrystalline silicon), LTPS(low temperature polycrystalline silicon), metal oxide, organic tft.This display pixel is applicable but not
It is limited to normal positive display pattern, normally-black display pattern, through display panels such as mode, semi-transparent semi-reflecting mode, the modes that is all-trans.
Detailed description of the invention
Fig. 1 is the schematic diagram of pixel-driving circuit of the invention；
Fig. 2 is the driving signal schematic diagram of Fig. 1 pixel-driving circuit.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
Embodiment 1
Fig. 1 shows the pixel-driving circuit of a preferred embodiment of the present invention, is used for liquid crystal display device, including the first choosing
Logical line Gate Line 1(GL1), the second gating line Gate Line 2(GL2), data line Source Line(SL), it is first brilliant
Body pipe M1, second transistor M2, third transistor M3 and pixel electrode.
The first transistor M1 in response to come from the second gating line Gate Line 2(GL2) the second gating signal and
Be controlled, and the first transistor M1 is connected to data line Source Line(SL) and first node n1 between, that is, root
It is switched on or switched off the first transistor M1 according to the logic state of the second gating signal, and makes to count when the first transistor M1 is connected
It is electrically connected to each other according to line SL and first node n1.The first transistor M1 has the gate terminal for being connected to the second gating line GL2,
It is connected to the source terminal of data line SL and is connected to the drain electrode end of first node n1.
The second transistor M2 phase is in response to the first gating signal from the first gating line Gate Line 1(GL1)
And it is controlled, and the second transistor M2 is connected between first node n1 and second node n2, that is, according to the first gating
The logic state of signal is switched on or switched off second transistor M2, and the first node n1 and the when second transistor M2 is connected
Two node n2 are electrically connected to each other.The second transistor M2 has the gate terminal for being connected to the first gating line GL1, is connected to first
The source terminal of node n1 and the drain electrode end for being connected to second node n2.
The third transistor M3 is controlled in response to being applied to the signal of first node n1, and third transistor
M3 is connected between first node n1 and second node n2, that is, according to the logic state for the voltage for being applied to first node n1 come
It is switched on or switched off third transistor M3, and so that first node n1 and second node n2 is electrically connected each other when third transistor M3 connection
It connects.The third transistor M3 has the gate terminal and source terminal for being connected to first node n1, is connected to the leakage of second node n2
Extremely.
The pixel electrode is electrically connected to each other with second node n2.
It should be noted that all transistors include but is not limited to A-Si(monocrystalline silicon using technique), LTPS(low-temperature polysilicon
Silicon), metal oxide, organic tft.The channel width-over-length ratio example of three transistors M1, M2 and M3 can be adjusted according to Pixel Dimensions
It is whole.
The working principle of present invention pixel driving circuit is as follows: when the first gating line GL1 and the second gating line GL2 are simultaneously
0, i.e., it is in an off state simultaneously, then closes the pixel, second transistor M2 and third transistor M3 help capacitor to store information；
When the first gating line GL1 is 0, and the second gating line GL2 is 1, it can be separately written high level, timing is facilitated to realize；When first
When gating line GL1 and the second gating line GL2 is 1 simultaneously, writable high level or low level realize write-in functions；When the second choosing
When logical line GL2 is 0, then the pixel is closed.As shown in Fig. 2, within each picture frame display cycle, present invention pixel driving circuit
Driving is divided into display driving and anti-deterioration driving, and display driving method is as the first gating line GL1 and the second gating line GL2
High input voltage signal simultaneously, then waveform, which has, could be written data when overlapping, i.e., lap is as effectively unlatching area；And prevent bad
Changing driving driving method is the high input voltage signal as the first gating line GL1 and the second gating line GL2 difference, then waveform does not go out
It is now overlapped, i.e., individually opens one of transistor using normal driving frequency (such as 60Hz) in anti-deterioration area, it in this way can be with
Transistor deterioration is prevented, while transistor can also play closing function, prevent pixel from leaking electricity, will not influence display quality.
It should be noted that the cut-in voltage of anti-deterioration driving can be with the cut-in voltage of same viewing area or less than viewing area
Cut-in voltage.
Because pixel driver frequency is lower, transistor is the most of the time to be in low-voltage closed state, will lead to crystalline substance in this way
The deterioration of body pipe.In existing display pixel when reducing the frequency of display module, the transistor shut-in time increases, and leads after lasting power-up
Transistor deterioration is caused, leakage current increases, and the present invention can increase switching circuit resistance by three transistor arrangements, reduces leakage
Electric current is conducive to the holding for showing picture, and under low frequency driving signal, reducing the deterioration on transistor influences.In anti-deterioration
One of transistor is individually opened using normal driving frequency (such as 60Hz) by area, can prevent transistor deterioration in this way, together
When transistor can also play closing function, prevent pixel from leaking electricity, will not influence display quality.
Embodiment 2
A kind of array substrate comprising several pixel units of matrix distribution, further include pixel as described in example 1 above
Driving circuit.
The array substrate of the present embodiment can increase switching circuit resistance by three transistor arrangements, reduce leakage current,
The holding for being conducive to show picture, under low frequency driving signal, reducing the deterioration on transistor influences.It is used in anti-deterioration area
Normal driving frequency (such as 60Hz) individually opens one of transistor, can prevent transistor deterioration, while crystal in this way
Pipe can also play closing function, prevent pixel from leaking electricity, and will not influence display quality.
Embodiment 3
A kind of liquid crystal display device, including array substrate as described in Example 2.The liquid crystal display device specifically can be with
Are as follows: liquid crystal display panel, mobile phone, tablet computer, television set, viewing area, laptop, Digital Frame and navigator etc. are any to be had
The products or components of display function.The display pattern of the liquid crystal display device is often positive display pattern, normally-black display pattern, thoroughly
Cross that mode, semi-transparent semi-reflecting mode, be all-trans any one of mode.
The liquid crystal display device of the present embodiment can increase switching circuit resistance by three transistor arrangements, reduce electric leakage
Stream is conducive to the holding for showing picture, and under low frequency driving signal, reducing the deterioration on transistor influences.In anti-deterioration area
One of transistor is individually opened using normal driving frequency (such as 60Hz), transistor deterioration can be prevented in this way, simultaneously
Transistor can also play closing function, prevent pixel from leaking electricity, and will not influence display quality.
Embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as, as long as skill obtained in the form of equivalent substitutions or equivalent transformations
Art scheme should all be fallen within the scope and spirit of the invention.
Claims (4)
1. a kind of pixel-driving circuit comprising: the first gating line, the second gating line, data line, the first transistor, the second crystalline substance
Body pipe, third transistor and pixel electrode, wherein
The first transistor has the gate terminal of the second gating line of connection, connects the source terminal of data line, in response to coming from
Second gating signal of the second gating line and be controlled；
The second transistor has the gate terminal of the first gating line of connection, the drain electrode end for connecting pixel electrode and connection
The source terminal of the drain electrode end of the first transistor is controlled in response to the first gating signal from the first gating line；
The third transistor has the drain electrode end of the pixel electrode of connection light-emitting component, connects the first transistor
The source terminal and gate terminal of the source terminal of drain electrode end and the second transistor.
2. the pixel-driving circuit according to claim 1, which is characterized in that the first transistor and/or the second crystalline substance
Body pipe and/or third transistor are A-Si, LTPS, metal oxide, organic tft.
3. a kind of array substrate comprising several pixel units of matrix distribution, further include the pixel as described in claim 1
Driving circuit.
4. a kind of liquid crystal display device, including the array substrate as described in claim 3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510983531.1A CN105372893B (en) | 2015-12-24 | 2015-12-24 | A kind of pixel-driving circuit, array substrate and liquid crystal display device |
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| CN201510983531.1A CN105372893B (en) | 2015-12-24 | 2015-12-24 | A kind of pixel-driving circuit, array substrate and liquid crystal display device |
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| CN105372893A CN105372893A (en) | 2016-03-02 |
| CN105372893B true CN105372893B (en) | 2019-01-18 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016218187B4 (en) * | 2016-03-31 | 2020-12-24 | Shanghai Tianma AM-OLED Co., Ltd. | Array substrate and manufacturing method, display panel and display device |
| CN106782267B (en) * | 2017-01-03 | 2020-11-06 | 京东方科技集团股份有限公司 | Shifting register, driving method thereof, grid driving circuit and display panel |
| CN107481659B (en) * | 2017-10-16 | 2020-02-11 | 京东方科技集团股份有限公司 | Gate drive circuit, shift register and drive control method thereof |
| CN108962158B (en) * | 2018-06-15 | 2021-01-26 | 信利半导体有限公司 | 3Tr ULP gate drive circuit and control circuit thereof |
| CN108873530B (en) * | 2018-07-30 | 2021-10-08 | 京东方科技集团股份有限公司 | Array substrate, display panel and display device |
| CN110930930A (en) * | 2019-12-26 | 2020-03-27 | 信利(仁寿)高端显示科技有限公司 | Low-power-consumption pixel latch circuit and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1464496A (en) * | 2002-06-14 | 2003-12-31 | 统宝光电股份有限公司 | Picture element circuit |
| CN1500226A (en) * | 2001-12-28 | 2004-05-26 | ����ŷ�������ʽ���� | Display panel and display panel driving method |
| CN201853468U (en) * | 2010-11-19 | 2011-06-01 | 四川虹视显示技术有限公司 | Active matrix/organic light emitting diode (AMOLED) pixel driving circuit |
| CN104505020A (en) * | 2014-12-16 | 2015-04-08 | 南京中电熊猫液晶显示科技有限公司 | Pixel compensation structure of AM-OLED (active matrix organic light emitting diode) display and driving method for pixel compensation structure |
-
2015
- 2015-12-24 CN CN201510983531.1A patent/CN105372893B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1500226A (en) * | 2001-12-28 | 2004-05-26 | ����ŷ�������ʽ���� | Display panel and display panel driving method |
| CN1464496A (en) * | 2002-06-14 | 2003-12-31 | 统宝光电股份有限公司 | Picture element circuit |
| CN201853468U (en) * | 2010-11-19 | 2011-06-01 | 四川虹视显示技术有限公司 | Active matrix/organic light emitting diode (AMOLED) pixel driving circuit |
| CN104505020A (en) * | 2014-12-16 | 2015-04-08 | 南京中电熊猫液晶显示科技有限公司 | Pixel compensation structure of AM-OLED (active matrix organic light emitting diode) display and driving method for pixel compensation structure |
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| CN105372893A (en) | 2016-03-02 |
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