CN106842748A - The dot structure and liquid crystal display device of a kind of liquid crystal display device - Google Patents
The dot structure and liquid crystal display device of a kind of liquid crystal display device Download PDFInfo
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- CN106842748A CN106842748A CN201710192898.0A CN201710192898A CN106842748A CN 106842748 A CN106842748 A CN 106842748A CN 201710192898 A CN201710192898 A CN 201710192898A CN 106842748 A CN106842748 A CN 106842748A
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- transistor
- liquid crystal
- display device
- crystal display
- scan line
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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
-
- 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
- G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
-
- 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)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of dot structure of liquid crystal display device, including some scan lines, the multiple pixel cells that define of scan line and data wire along some data lines and intersection set perpendicular to the direction of scan line be arrangeding in parallel；Each pixel cell includes liquid crystal capacitance and the first transistor and transistor seconds that are connected in series with each other, and the transistor seconds is coupled to the liquid crystal capacitance；Characterized in that, any one scan line is connected with the first transistor in the pixel cell of its side, also it is connected with the transistor seconds in the pixel cell of its opposite side.The invention also discloses a kind of liquid crystal display device.The dot structure of liquid crystal display device of the present invention, the transistor of its diverse location by being directly connected to be located in two adjacent pixel cells in scan line in office, the quantity of scan line reduces half, not only save space, storage capacitance area can be increased or reduce Pixel Dimensions, PPI is improved, display effect is improved.
Description
Technical field
The present invention relates to dot structure technical field, a kind of more particularly to dot structure of liquid crystal display device
And liquid crystal display device.
Background technology
With continuing to develop for LCD technology, in order to further reduce LCD power consumptions, a kind of liquid crystal of new ULF
Display is occurred.In order to reduce the loss of leakage current in TFT triodes, the time that storage capacitance maintains display is improved,
Two transistors are set in one pixel.
As shown in figure 1, it is the circuit theory schematic diagram of the dot structure of existing new pair transistor.The dot structure
It is data wire 2 ' that left and right is double-end, and what lower end was drawn is scan line 1 '；The dot structure specifically includes many of array arrangement
Bar scan line 1 ' and a plurality of data lines 2 ' and the pixel cell 3 ' defined by two scan lines 11 ', 12 ' and a data wire 2 ',
Each pixel pixel cell 3 ' includes the two transistor T1 ', T2 ', pixel electrode Clc ' and the public electrode that are arranged in series
Vcom ', the public electrode Vcom ' is formed in the top of the pixel electrode Clc ', makes pixel electrode Clc ' and public electrode
Vcom ' forms structure types of the storage capacitance Cs ' on public electrode Vcom '；Wherein, the 1st transistor T1 ' and the 2nd crystalline substance
The grid G of body pipe T2 ' connects two scan lines 11 ', 12 ' in same pixel cell 3 ' respectively；1st transistor T1 '
Drain D be connected with the source S of the 2nd transistor T2 ', the source S of the 1st transistor T1 ' is connected with the data wire 2 ',
2 drain Ds of transistor T2 ' connect the pixel electrode Clc '.
But, the dot structure of existing pair transistor is connected respectively due to including two scan lines in each pixel cell
Two transistors, then the quantity of scan line one times is increased compared with the dot structure of existing single-transistor, then need accordingly to subtract
Small storage capacitance area or increase Pixel Dimensions, and load impedance and parasitic capacitance are also improved, greatly influence display is imitated
Really.
The content of the invention
In view of this, the technical problems to be solved by the invention there is provided a kind of dot structure of liquid crystal display device,
The transistor of its diverse location by being directly connected to be located in two adjacent pixel cells in scan line in office, scan line
Quantity reduce half, not only save space, it is possible to increase storage capacitance area reduces Pixel Dimensions, improves PPI, improves aobvious
Show effect.
Present invention also offers a kind of liquid crystal display device.
The technical problems to be solved by the invention are achieved by the following technical programs：
A kind of dot structure of liquid crystal display device, including some scan lines, the edge that be arranged in parallel are perpendicular to the side of scan line
To multiple pixel cells that some data lines and the scan line and data wire of intersection that set are defined；Each pixel cell
Including liquid crystal capacitance and the first transistor and transistor seconds that are connected in series with each other, the transistor seconds is coupled to the liquid crystal
Electric capacity；Wherein, any one scan line with positioned at its side pixel cell in the first transistor be connected, also be located at
Transistor seconds connection in the pixel cell of its opposite side.
The grid G of the first transistor and transistor seconds in same pixel cell connects with adjacent scan line respectively
Connect；The drain D of the first transistor is connected with the source S of transistor seconds, the source S of the first transistor and the data wire
Connection；The drain D of transistor seconds is coupled to the liquid crystal capacitance.
A kind of liquid crystal display device, array base palte that it includes the dot structure for being formed with above-mentioned, data driver and sweeps
Driver is retouched, the data driver is located at the both sides of the array base palte, for being carried to the data wire on the array base palte
For data-signal；The scanner driver is used to drive the scan line on the array base palte.The scanner driver is integrated in
On array base palte.
The present invention has the advantages that：Dot structure of the invention in scan line in office by being directly connected to be located at
The transistor of the diverse location in two adjacent pixel cells, i.e., the scan line connection the first transistor in each pixel cell
And transistor seconds, the quantity of scan line reduces half, not only save space, it is possible to increase storage capacitance area reduces pixel
Size, improves PPI, improves display effect.On the other hand, due to the quantity reduction of scan line, its load impedance and parasitic capacitance
Also reduce, its RC retardation ratio is reduced, so that the charging by transistor to liquid crystal capacitance is more sufficient.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of existing double transistor pixels structure；
Fig. 2 is the circuit theory diagrams of double transistor pixels structure of the present invention；
Fig. 3 is a kind of oscillogram of working method of Fig. 2 dot structures.
Specific embodiment
With reference to embodiment, the present invention will be described in detail, and embodiment is only the preferred embodiment of the present invention,
It is not limitation of the invention.
Existing double transistor pixels structure design due in pixel space it is limited, and in order to reduce refreshing frequency as far as possible,
Storage capacitance must as far as possible be increased, to maintain picture for more time；But the dot structure of existing pair transistor is due to each pixel
Two scan lines are included in unit, two transistors are connected respectively, then the pixel knot of the quantity of scan line and existing single-transistor
Structure is then needed accordingly to reduce storage capacitance area but can cause the storage capacitance to reduce compared to increased one times, and the electricity of storage is not
It is enough to maintain to be shown to pixel charging time next time；Or, it is corresponding to increase Pixel Dimensions but PPI be reduced, reduce identical aobvious
Show and can reduce resolution ratio under size；Either reduce storage capacitance area and still increase Pixel Dimensions, all greatly influence display
Effect.The parasitic capacitances such as Cgs and load impedance are also increased simultaneously, display effect is further influenceed.
Also existing pair transistor connects same scan line, although without the quantity for increasing scan line, leakage current is compared to single
Transistor pixel structure does not increase, but it can also reduce firing current simultaneously, can cause storage capacitance undercharge or
Charging interval lengthens, and then influences display effect.Existing pair transistor connection is with scan line essentially by increasing crystal
Tube passage length, reduces specific passage breadth length ratio come what is realized, increased the complexity of design and the manufacture of dot structure, no
Beneficial to industrialization.
In order to solve the above-mentioned technical problem, as shown in Fig. 2 present embodiments providing a kind of pixel knot of liquid crystal display device
Structure, it includes some scan line G0 to Gn be arrangeding in parallel（N is natural number）, along being set perpendicular to the direction of scan line G0 to Gn
Multiple pixel cell P that some data line S and the scan line G0 to Gn and data wire S of intersection for putting are defined；Each picture
Plain unit P includes liquid crystal capacitance Clc and the first transistor M1 and transistor seconds M2 that are connected in series with each other, second crystal
Pipe M2 is coupled to liquid crystal capacitance Clc；Wherein, any one scan line G0 or Gn and pixel cell P for being located at its side
Interior the first transistor M1 connections, are also connected with the transistor seconds M2 in the pixel cell P of its opposite side.
That is scan line G0 or Gn in each pixel cell P are connected positioned at the first transistor M1 of its both sides and second respectively
Transistor M2（This first transistor M1 and transistor seconds M2 are located in different pixels unit P respectively）, therefore, it is double compared to existing
The dot structure of transistor, the quantity of the present embodiment scan line G0 to Gn reduces half, not only save space, it is possible to increase storage
Electric capacity Cs areas, by taking 58*174 Pixel Dimensions as an example, the present embodiment storage capacitance Cs areas compare existing double transistor pixels knot
The storage capacitance Cs areas of structure design improve at least 15%, hence it is evident that increase capacitance, effectively to reduce feedthrough
(feedthrough) effect and electrical leakage voltage is reduced；Or Pixel Dimensions can be reduced, Pixel Dimensions are smaller, and PPI is higher, more effectively
Display effect is improved, and cost is lower；Compared to pair transistor connection in existing double transistor pixels structure with scan line G0
Or Gn, the present embodiment is not in that firing current reduces phenomenon, while without complicated design, being easy to industrialization to generate.It is another
Aspect, because the quantity of scan line G0 to Gn is reduced, its load impedance and parasitic capacitance are also reduced, and its RC retardation ratio is reduced, so that
Charging by transistor to liquid crystal capacitance Clc is more sufficient.
Each pixel cell P, by taking pixel cell Pi as an example, including：The liquid crystal capacitance Clc and storage capacitance being arranged in parallel
The Cs and two the first transistor M1 and transistor seconds M2 being arranged in series, wherein transistor are preferred but are not limited to TFT crystalline substances
Body pipe；The grid G of the first transistor M1 and transistor seconds M2 is connected with adjacent scan line Gi and Gi-1 respectively；It is described
The drain D of the first transistor M1 is connected with the source S of transistor seconds M2, the source S of the first transistor M1 and the data wire S
Connection；The drain D of transistor seconds M2 is coupled to the liquid crystal capacitance Clc and storage capacitance Cs.
Scanning signals of the Fig. 3 which show a kind of multi-strip scanning line G0 to Gn of implementation method of the present embodiment dot structure
With the oscillogram of the data-signal of data wire, but this implementation method is not limited to.More specifically, Vg0 to Vgn is respectively described
The scanning signal of scan line G0 to Gn, cycle sweep time of oneself, and week each sweep time are respectively provided with per scan signal
Phase had than record time cycle long time；Vs represents the data letter that data wire is input to liquid crystal capacitance and storage capacitance
Number.Each pixel column scans line traffic controls by two of its both sides, cycle sweep time of two scan lines in the scheduled time, such as
In one record time, overlap each other, data record is performed to the pixel column within overlapping time.With to scan line Gi-1 and Gi
As a example by being scanned, cycle sweep time of the scanning signal Vgi-1 of scan line Gi-1 is Ti-1, the scanning signal of scan line Gi
Cycle sweep time of Vgi is Ti；Then in the overlapping time ti of sweep time cycle T i-1 and Ti, scanning signal Vgi-1 and
Vgi is high voltage so that the first transistor M1 and transistor seconds M2 are simultaneously turned on, at the same time, data wire output data
Signal is input into liquid crystal capacitance Clc and storage capacitance Cs through transistor seconds M2, i.e., perform data record on ith pixel row.
The present embodiment additionally provides a kind of liquid crystal display device, its array base for including the dot structure for being formed with above-mentioned
Plate, data driver, scanner driver and printed circuit board (PCB), do not illustrate set relative with array base palte for convenience of description, in figure
The colored filter substrate put and it is mingled with liquid crystal therebetween.
The data driver is located at the both sides of the array base palte, for being provided to the data wire on the array base palte
Data-signal；The scanner driver is used to drive the scan line on the array base palte, is preferably integrated on array base palte.
Embodiment described above only expresses embodiments of the present invention, and its description is more specific and detailed, but can not
Therefore the limitation to the scope of the claims of the present invention is interpreted as, as long as the skill obtained in the form of equivalent or equivalent transformation
Art scheme, all should fall within the scope and spirit of the invention.
Claims (10)
1. a kind of dot structure of liquid crystal display device, including be arranged in parallel some scan lines, along perpendicular to scan line
Some data lines that direction is set and multiple pixel cells that the scan line and data wire of intersection are defined；Each pixel list
Unit includes liquid crystal capacitance and the first transistor and transistor seconds that are connected in series with each other, and the transistor seconds is coupled to the liquid
Brilliant electric capacity；Characterized in that, any one scan line is connected with the first transistor in the pixel cell of its side,
Also it is connected with the transistor seconds in the pixel cell of its opposite side.
2. the dot structure of liquid crystal display device according to claim 1, it is characterised in that the first transistor and second
Transistor is thin film transistor (TFT).
3. the dot structure of liquid crystal display device according to claim 1, it is characterised in that in same pixel cell
The grid G of the first transistor and transistor seconds is connected with adjacent scan line respectively；The drain D of the first transistor and the
The source S connection of two-transistor, the source S of the first transistor is connected with the data wire；The drain D of transistor seconds is coupled to
The liquid crystal capacitance.
4. the dot structure of liquid crystal display device according to claim 1, it is characterised in that the liquid crystal capacitance is also in parallel
There is a storage capacitance.
5. a kind of liquid crystal display device, it includes array base palte, data driver and scanner driver, it is characterised in that described
Dot structure as claimed in claim 1 is formed with array base palte.
6. liquid crystal display device according to claim 5, it is characterised in that the first transistor and transistor seconds are thin
Film transistor.
7. liquid crystal display device according to claim 5, it is characterised in that the first transistor in same pixel cell
Connected with adjacent scan line respectively with the grid G of transistor seconds；The drain D of the first transistor and transistor seconds
Source S is connected, and the source S of the first transistor is connected with the data wire；The drain D of transistor seconds is coupled to liquid crystal electricity
Hold.
8. the dot structure of liquid crystal display device according to claim 5, it is characterised in that the liquid crystal capacitance is also in parallel
There is a storage capacitance.
9. liquid crystal display device according to claim 5, it is characterised in that the data driver is located at the array base palte
Both sides, on the array base palte data wire provide data-signal；The scanner driver is used to drive the battle array
Scan line on row substrate.
10. liquid crystal display device according to claim 5, it is characterised in that the scanner driver is integrated in array base palte
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710192898.0A CN106842748A (en) | 2017-03-28 | 2017-03-28 | The dot structure and liquid crystal display device of a kind of liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710192898.0A CN106842748A (en) | 2017-03-28 | 2017-03-28 | The dot structure and liquid crystal display device of a kind of liquid crystal display device |
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| CN201710192898.0A Pending CN106842748A (en) | 2017-03-28 | 2017-03-28 | The dot structure and liquid crystal display device of a kind of liquid crystal display device |
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Cited By (6)
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|---|---|---|---|---|
| CN107221300A (en) * | 2017-07-26 | 2017-09-29 | 京东方科技集团股份有限公司 | Image element circuit and its driving method, display base plate, display device |
| CN107967908A (en) * | 2018-01-31 | 2018-04-27 | 京东方科技集团股份有限公司 | Display base plate and its driving method, display panel |
| CN108091312A (en) * | 2018-01-05 | 2018-05-29 | 信利半导体有限公司 | The display panel and display module of a kind of low-power consumption |
| CN108335679A (en) * | 2018-01-16 | 2018-07-27 | 信利半导体有限公司 | A kind of LCD scan drive circuits |
| CN109634011A (en) * | 2019-01-08 | 2019-04-16 | 昆山国显光电有限公司 | Array substrate, display panel and display device |
| CN113568232A (en) * | 2021-09-27 | 2021-10-29 | 南京初芯集成电路有限公司 | Pixel unit, array substrate, driving method, liquid crystal panel and liquid crystal display screen |
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| CN109634011B (en) * | 2019-01-08 | 2022-01-07 | 昆山国显光电有限公司 | Array substrate, display panel and display device |
| CN113568232A (en) * | 2021-09-27 | 2021-10-29 | 南京初芯集成电路有限公司 | Pixel unit, array substrate, driving method, liquid crystal panel and liquid crystal display screen |
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