CN109637482A - Pixel-driving circuit - Google Patents
Pixel-driving circuit Download PDFInfo
- Publication number
- CN109637482A CN109637482A CN201910041554.9A CN201910041554A CN109637482A CN 109637482 A CN109637482 A CN 109637482A CN 201910041554 A CN201910041554 A CN 201910041554A CN 109637482 A CN109637482 A CN 109637482A
- Authority
- CN
- China
- Prior art keywords
- pixel
- display area
- driving circuit
- scan line
- controlling grid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
Abstract
This announcement provides a kind of pixel-driving circuit, including display area, controlling grid scan line, data line and pixel unit, the display area further includes the first display area and the second display area, interval is provided between first display area and the second display area, data line in first display area is not turned on the data line in the second display area, by by entire pixel-driving circuit zoning design, pixel unit can be carried out sufficient charging, in the effective charging time for improving pixel unit, guarantee the consistency of entire pixel.
Description
Technical field
This announcement is related to field of display technology more particularly to a kind of pixel-driving circuit.
Background technique
With the continuous development of liquid crystal display (Liquid Crystal Display, LCD) display technology, people are to aobvious
Show that device shows that the requirement of quality and performance is higher and higher, and determines that a key factor of display display performance is exactly display
The circuit design and arrangement of interior pixels.
In existing design, array substrate row actuation techniques (Gate Driver On Array, GOA) generally is used, array
The driving of substrate row is to utilize thin film transistor (TFT) (Thin Film Transistor, TFT) LCD (Liquid Crystal Display) array processing procedure by grid
Scan drive circuit is produced on thin-film transistor array base-plate, is a variety of to realize to the driving method being scanned line by line
Display is used, in this actuation techniques, grid line in driving panel, to open the TFT in viewing area, and to picture
Element charges, still, when each pixel in plate is charged over there, since pixel is numerous and each in each ranks
The time of secondary charge and discharge is very short, and the capacitor of some pixels does not reach fully charged, leads to all pixels on panel
Charge and discharge inconsistency, the grid line opening time is short, and product resolution ratio is low, and then affects the display effect of whole display.
In conclusion the capacitor of the pixel circuit on substrate can not achieve to be filled completely in array substrate row actuation techniques
The problems such as electric discharge, entire pixel consistency is poor, and the resolution ratio of product is lower, it is, therefore, desirable to provide further improving
Scheme.
Summary of the invention
This announcement provides a kind of pixel-driving circuit, is set with solving the driving circuit in state of the art in array substrate
Count defect, the capacitor in pixel circuit cannot complete charge and discharge, the grid line opening time is short, pixel consistency difference and product point
The problems such as resolution is low.
In order to solve the above technical problems, the technical solution that this announcement embodiment provides is as follows:
According to this announcement embodiment in a first aspect, providing a kind of pixel-driving circuit, comprising:
Display area, is arranged in the viewing area the multiple controlling grid scan lines being arranged on the display area line direction
Multiple data lines on the column direction of domain and
The pixel unit that the controlling grid scan line and the data line intersect in region is set；
Wherein, the display area further includes the first display area and the second display area, first display area with
There is interval between second display area, in the data line in first display area and second display area
The data line be not turned on.
It further include the data driving chip and grid line drive of setting within the display area according to one embodiment of this announcement
Dynamic chip, the data line are connected with the data driving chip, the controlling grid scan line and the grid line driving chip
It is connected.
According to one embodiment of this announcement, the pixel unit further includes thin film transistor switch and pixel electrode, described thin
The grid of film transistor switch is connected to the corresponding controlling grid scan line, and the source electrode of the thin film transistor (TFT) is connected to corresponding
The data line, the drain electrode of the thin film transistor switch are connected to the pixel electrode.
According to one embodiment of this announcement, when the controlling grid scan line receives level signal, the controlling grid scan line is provided
The level signal is to the thin film transistor (TFT).
Select embodiment according to this announcement, when in first display area the data line and second display area
When the interior data line is scanned simultaneously, the charging order of the controlling grid scan line is to recycle upwards or downwards.
According to one embodiment of this announcement, the pixel unit of adjacent rows shares a controlling grid scan line.
According to one embodiment of this announcement, the pixel unit is connected on data line described in same root.
According to one embodiment of this announcement, the pixel unit of adjacent rows shares a controlling grid scan line, each column
In the pixel unit, two pixel units for being connected to controlling grid scan line described in same root are connected to two different institutes
State data line.
According to one embodiment of this announcement, the controlling grid scan line is between two adjacent row pixel units.
It include: red sub-pixel, green sub-pixels, blue in each pixel unit according to one embodiment of this announcement
Sub-pixel or each pixel unit include: red sub-pixel, green sub-pixels, blue subpixels and white sub-pixels.
In conclusion this announcement embodiment has the beneficial effect that
Pixel-driving circuit in existing display equipment is improved, entire pixel-driving circuit progress subregion is set
Meter, and increase multiple data driving chips, so that different data driving chips is controlled the data line in different zones, multiple data
Driving chip works at the same time, in this way, pixel unit can be carried out when controlling grid scan line and data line provide signal and be scanned
Adequately charging in the effective charging time for improving pixel unit, guarantees the consistency of entire pixel.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of embodiment or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only some of announcement
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the pixel-driving circuit schematic diagram of this announcement embodiment；
Fig. 2 is a kind of pixel-driving circuit schematic diagram of this announcement embodiment；
Fig. 3 is another pixel-driving circuit schematic diagram of this announcement embodiment.
Specific embodiment
Below in conjunction with the attached drawing in this announcement embodiment, the technical solution in this announcement embodiment is carried out clear, complete
Site preparation description.Obviously, described embodiment is only this announcement a part of the embodiment, instead of all the embodiments.It is based on
Embodiment in this announcement, those skilled in the art's every other implementation obtained without creative efforts
Example belongs to the range of this announcement protection.
In the description of this announcement, it is to be understood that the orientation or positional relationship of instruction is side based on the figure
Position or positional relationship are merely for convenience of describing this announcement and simplify description.In addition, term " first ", " second " are only used for retouching
Purpose is stated, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.This
The example of various specific techniques and material that announcement provides, but those of ordinary skill in the art may be aware that other works
The application of skill and/or the use of other materials.
This announcement embodiment provides a kind of pixel-driving circuit, and as shown in FIG. 1, FIG. 1 is the pictures that this announcement embodiment provides
Plain drive circuit schematic diagram.The pixel-driving circuit includes substrate 100, the first display area 107 and the second display area
108.First grid driving chip 101, data line 104, the first data driving chip are additionally provided in the first display area 107
105, pixel unit 106 and a plurality of controlling grid scan line G (n), first grid driving chip 101 and corresponding gate lines G (n)
It is connected, and controls the input and output of grid line scanning signal, the first data driving chip 105 is connected with corresponding data line
It connects, and controls the input and output of data line signal.Second gate line driving chip is additionally provided in the second display area 108
102, the second data driving chip 103, pixel unit 106 and a plurality of controlling grid scan line G (n '), second grid driving chip
102 are connected with corresponding gate lines G (n '), and control grid line scanning signal, the second data driving chip 103 with it is corresponding
Data line is connected, and controls data-signal.
The pixel-driving circuit of this announcement, as shown in Figure 1, further include thin film transistor switch in pixel unit 106, it is described
The grid of thin film transistor switch is connected to the corresponding controlling grid scan line, and source electrode is connected to the corresponding data line, leakage
Pole is connected to pixel electrode.
Specifically, in this announcement embodiment, between being provided between the first display area 107 and the second display area 108
Every entire pixel-driving circuit is divided into two relatively independent parts by the interval, aobvious in the first display area 107 and second
The data line for showing the same column direction setting in region 108 is data control that is disconnected, i.e., being issued by the first data driving chip 105
Signal processed can only control the data line 104 in the first display area, the data control issued by the second data driving chip 103
It can control the data line 104 in the second display area, similarly, the first grid driving chip 101 in the first display area 107
The grid control signal of sending can only control the gate lines G (n) in the region, and the second grid in the second display area 108 drives
The grid control signal that dynamic chip 102 issues can only control the gate lines G (n ') in the region.
When being high level signal when upper and lower half screen is worked line by line, on the controlling grid scan line, data-signal is provided,
The charging order of controlling grid scan line is upwardly or downwardly and to recycle progress.First data driving chip 105 and the second data are driven
Dynamic chip 103 provides driving control signal simultaneously, therefore, in a column direction, the number for the thin film transistor (TFT) to be controlled on data line
Quantitative change is original half, in this manner it is possible to increase the opening time of controlling grid scan line G (n).
Specifically, for the high-resolution products of a n*2m, according to the time formula of pixel charging: T1=1/f/2m,
Wherein f is the refreshing frequency of panel, and 2m is the quantity of controlling grid scan line.
In this announcement embodiment, the control signal of the first data driving chip 105 and the second data driving chip 103 is same
When input, be divided into the first display area 107 by pixel-driving circuit in this present embodiment and separated with the first display area 107
Second display area 108, the two display areas are controlled by different grid drive chips respectively,
Therefore, corresponding respective half screen, scan line become as m, and sweep time just becomes T2=1/f/m, sweep time T2=
2T1, under identical refreshing frequency, the addressing time of every row grid line will increase one times, and pixel charging time also doubles, thus
The resolution ratio of panel is improved.
As shown in Fig. 2, Fig. 2 is another pixel-driving circuit schematic diagram that this announcement embodiment provides.Wherein, it is being arranged
When the driving circuit of this announcement embodiment, controlling grid scan line G (n) between two adjacent row pixel units, meanwhile, adjacent two
The capable pixel unit 201 and pixel unit 202 shares a controlling grid scan line 203, in same row, the pixel unit
It is all connected on same root data line 204.The other parts of driving circuit are the same as identical in Fig. 1.
As shown in figure 3, Fig. 3 is another pixel-driving circuit schematic diagram that this announcement embodiment provides.It is real in this announcement
The pixel-driving circuit for applying example is divided into upper and lower two half screen parts, is also equipped with interval between upper and lower two half screens, specific to be arranged
As shown in Figure 2.Wherein, upper half screen part further include pixel unit 300, the first data line 301, with 301 phase of the first data line
Adjacent the second data line 302, the first source connection lines 303 and the second source connection lines 304.In every two adjacent column pixel lists
Two data lines are set between member 300, the source connection lines of the pixel unit 300 of adjacent rows are respectively at the first data line 301
Be connected with the second data line 302, i.e., in each column pixel unit, two pixels being connected on controlling grid scan line described in same root
Unit is connected on two different data lines.In this way, further increasing the performance of pixel-driving circuit.Pixel unit
300 may include red, green, blue three sub-pixels or the pixel unit 300 include: red, green, blue and white
Four sub-pixels of color, need to select pixel unit according to display.
A kind of pixel-driving circuit provided by this announcement embodiment is described in detail above, above embodiments
Illustrate the technical solution for being merely used to help understand this announcement and its core concept；Those skilled in the art should manage
Solution: it is still possible to modify the technical solutions described in the foregoing embodiments, and these are modified or replaceed, and does not make
The essence of corresponding technical solution is detached from the range for the technical solution that this discloses each embodiment.
Claims (10)
1. a kind of pixel-driving circuit characterized by comprising
Display area, a plurality of controlling grid scan line being arranged on the display area line direction, setting are arranged in the display area
Multiple data lines on direction and
Multiple pixel units that the controlling grid scan line and the data line intersect in region are set；
Wherein, the display area further includes the first display area and the second display area, first display area with it is described
Interval is provided between second display area, in the data line in first display area and second display area
The data line be not turned on.
2. pixel-driving circuit according to claim 1, which is characterized in that further include being arranged within the display area
Data driving chip and grid drive chip, the data line are connected with the data driving chip, the controlling grid scan line
It is connected with the grid drive chip.
3. pixel-driving circuit according to claim 1, which is characterized in that the pixel unit further includes thin film transistor (TFT)
Switch and pixel electrode, the grid of the thin film transistor switch are connected to the corresponding controlling grid scan line, and the film is brilliant
The source electrode of body pipe switch is connected to the corresponding data line, and the drain electrode of the thin film transistor switch is connected to the pixel electricity
Pole.
4. pixel-driving circuit according to claim 1, which is characterized in that when the controlling grid scan line receives level signal
When, the controlling grid scan line provides the level signal to the thin film transistor (TFT).
5. pixel-driving circuit according to claim 1, which is characterized in that the number in first display area
When being scanned simultaneously according to the data line in line and second display area, the charging order of the controlling grid scan line is
Upwardly or downwardly recycle.
6. pixel-driving circuit according to claim 1, which is characterized in that the pixel unit of adjacent rows shares one
Controlling grid scan line described in root.
7. pixel-driving circuit according to claim 6, which is characterized in that pixel unit described in same row is connected to same
On data line described in root.
8. pixel-driving circuit according to claim 1, which is characterized in that the pixel unit of adjacent rows shares one
Controlling grid scan line described in root in pixel unit described in each column, is connected to two pixels of controlling grid scan line described in same root
Unit is connected to two different data lines.
9. pixel-driving circuit according to claim 8, which is characterized in that the controlling grid scan line is located at two adjacent rows
Between the pixel unit.
10. pixel-driving circuit according to claim 1, which is characterized in that each pixel unit includes red son
Pixel, green sub-pixels and blue subpixels or each pixel unit include red sub-pixel, green sub-pixels, indigo plant
Sub-pixels and white sub-pixels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910041554.9A CN109637482A (en) | 2019-01-16 | 2019-01-16 | Pixel-driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910041554.9A CN109637482A (en) | 2019-01-16 | 2019-01-16 | Pixel-driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109637482A true CN109637482A (en) | 2019-04-16 |
Family
ID=66061992
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| CN201910041554.9A Pending CN109637482A (en) | 2019-01-16 | 2019-01-16 | Pixel-driving circuit |
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Cited By (8)
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| CN111477185A (en) * | 2020-04-30 | 2020-07-31 | 上海中航光电子有限公司 | Array substrate, display panel and display device |
| CN111477150A (en) * | 2020-04-30 | 2020-07-31 | 深圳市华星光电半导体显示技术有限公司 | Display device |
| CN112309345A (en) * | 2020-11-13 | 2021-02-02 | 武汉华星光电技术有限公司 | GOA circuit, array substrate and display panel |
| CN112489558A (en) * | 2019-09-11 | 2021-03-12 | 矽创电子股份有限公司 | Display panel driving chip, display panel driving structure and display device thereof |
| CN113362779A (en) * | 2021-06-28 | 2021-09-07 | 武汉华星光电技术有限公司 | Display panel and display device |
| CN114267308A (en) * | 2021-12-22 | 2022-04-01 | 深圳创维－Rgb电子有限公司 | Liquid crystal display screen scanning method and device, and liquid crystal display screen |
| WO2022111101A1 (en) * | 2020-11-25 | 2022-06-02 | 京东方科技集团股份有限公司 | Display substrate and driving method therefor, and display device |
| CN114815346A (en) * | 2021-01-22 | 2022-07-29 | 北京京东方光电科技有限公司 | Array substrate and display panel |
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| CN112489558A (en) * | 2019-09-11 | 2021-03-12 | 矽创电子股份有限公司 | Display panel driving chip, display panel driving structure and display device thereof |
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| CN114267308A (en) * | 2021-12-22 | 2022-04-01 | 深圳创维－Rgb电子有限公司 | Liquid crystal display screen scanning method and device, and liquid crystal display screen |
| CN114267308B (en) * | 2021-12-22 | 2023-03-14 | 深圳创维－Rgb电子有限公司 | Liquid crystal display screen scanning method and device, and liquid crystal display screen |
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