CN105575322A - Half-source driving display panel - Google Patents
Half-source driving display panel Download PDFInfo
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- CN105575322A CN105575322A CN201510955567.9A CN201510955567A CN105575322A CN 105575322 A CN105575322 A CN 105575322A CN 201510955567 A CN201510955567 A CN 201510955567A CN 105575322 A CN105575322 A CN 105575322A
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- sweep trace
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention provides a half-source driving display panel. The wiring mode of scanning lines is improved, in one distribution period, one period includes 2n scanning lines, and n is an even number equal to or larger than 4. In the distribution period, the (n+k)th scanning line connecting point on the scanning driving circuit is connected with the (2n+1-k)th scanning line, wherein k is an integer from 1 to n. By adopting the driving mode of digital signal polarity reversing by one time namely point reversing, light and dark states of pixel units are arranged at intervals, so that the problem of vertical light and dark lines in the prior art is solved. By adopting the time sequence of scanning signals output by the scanning driving circuit, the same light and dark effect can be achieved.
Description
Technical field
The present invention relates to a kind of display panel, particularly a kind of half source drive (HalfSourceDriving, HSD) display panel.
Background technology
In conventional display panels, thin-film transistor array base-plate shares a sweep trace with the pixel cell of a line, the corresponding same data line of pixel cell of same row, as shown in Figure 1, the pixel cell of the 1st row is driven by sweep trace G1, and the pixel cell of the 2nd row is driven by sweep trace G2, by that analogy; Data line D1 provides data-signal respectively to the pixel cell of the 1st row, and data line D2 provides data-signal respectively to the pixel cell of the 2nd row, by that analogy.
Fig. 2 shows a kind of schematic diagram of existing half source drive HSD (HalfSourceDriving) pel array.In HSD pel array, the adjacent pixel cell in left and right shares a data line, therefore compared to the conventional display panels shown in Fig. 1, and the decreased number half of data line in HSD pel array.Again, in HSD pel array, connect different sweep traces with the pixel cell that a line is adjacent, the pixel cell being spaced a pixel cell with a line connects identical sweep trace, like this, compared to the conventional display panels shown in Fig. 1, in HSD pel array, the number of sweep trace doubles.
In HSD pel array, a data line drives two row pixel cells, destroys the symmetry of pixel.Further, the number of pixel cells that a sweep trace connects reduces, and is assigned to the scanning impulse time shorten on sweep trace, the duration of charging of each pixel cell is reduced.Also therefore, the signal delay effect of data line and sweep trace is often more obvious, such as can cause the difference of odd column pixel unit and even column pixels unit charge rate in data line (sweep trace) tail end, data line (sweep trace) delay, thus produce the display defect of bright concealed wire.
Summary of the invention
The object of the present invention is to provide a kind of half source drive display panel, occur the technical matters of vertical bright concealed wire ill effect to solve display frame in prior art.
For achieving the above object, one aspect of the present invention provides a kind of half source drive display panel, comprises sweep trace, arranges in the row direction; Data line, arranges along column direction; Pixel cell, is staggered to form by sweep trace and data line; The shared data line of pixel cell that left and right is adjacent; Connect different sweep traces with the pixel cell that a line is adjacent, the pixel cell being spaced a pixel cell with a line connects identical sweep trace; Scan drive circuit, have the multiple sweep trace contacts be electrically connected with sweep trace, sweep signal is exported to sweep trace by sweep trace contact by scan drive circuit; And data drive circuit, have the multiple data line contacts be electrically connected with data line, data-signal is exported to data line by data line contact by data drive circuit; The wherein sweep trace contact sequential of scan drive circuit, the distribution of sweep trace is a cycle with 2n bar sweep trace, n be more than or equal to 4 even number, in this distribution period, n-th+k sweep trace contact connects 2n+1-k article of sweep trace, and wherein k is the integer of 1 ~ n.
The present invention provides a kind of half source drive display panel on the other hand, comprises sweep trace, arranges in the row direction; Data line, arranges along column direction; Pixel cell, is staggered to form by sweep trace and data line; The shared data line of pixel cell that left and right is adjacent; Connect different sweep traces with the pixel cell that a line is adjacent, the pixel cell being spaced a pixel cell with a line connects identical sweep trace; Scan drive circuit, is electrically connected with sweep trace, and sweep signal is exported to sweep trace; And data drive circuit, be electrically connected with data line, data-signal is exported to data line; Wherein scan drive circuit with 2n bar sweep trace, the capable pixel cell of n for scan cycle, n be more than or equal to 4 even number, sweep signal is sent to front n bar sweep trace by scan drive circuit in order, and adopts inverted order mode and sweep signal is sent to rear n bar sweep trace.
Half source drive display panel of the present invention is by improveing the wire laying mode of sweep trace, in a distribution period, the sweep trace of the first half number is sequentially electrically connected to scan drive circuit, the sweep trace of later half number is then electrically connected to scan drive circuit with reverse sequence, so adopt data-signal reversal of poles one take second place the type of drive of a reversion time, the bright dark state interval arrangement of pixel cell can be made, such picture looks like uniformly, therefore solves the problem of vertical bright concealed wire in prior art.In addition, the present invention also exports the sequential of sweep signal by adjustment scan drive circuit, reach identical technology effect.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and coordinate institute's accompanying drawings, be described in detail below:
Accompanying drawing explanation
Fig. 1 shows a kind of pel array schematic diagram of existing display panel.
Fig. 2 shows a kind of schematic diagram of pel array of existing half source drive display panel.
Fig. 3 shows the pel array schematic diagram of half source drive display panel.
The schematic diagram of the half source drive display panel that the polarity of Fig. 4 display data signal is reversed after two scan periods.
Fig. 5 shows the drive waveforms figure of the sweep signal in Fig. 4 on sweep trace and the data-signal on data line.
Fig. 6 shows the bright dark effect of each pixel cell in Fig. 4.
Fig. 7 shows the schematic diagram of half source drive display panel of the present invention.
Fig. 8 shows the drive waveforms figure of the sweep signal in Fig. 7 on sweep trace and the data-signal on data line.
Embodiment
For making object of the present invention, technical scheme and effect clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, the word " embodiment " that instructions of the present invention uses means to be used as example, example or illustration, is not intended to limit the present invention.Further, in institute's accompanying drawings, structure, functional similarity or identical element represent with identical element numbers.
The technical scheme that the vertical bright concealed wire of display panel adopts is improved more clear for making the present invention, to take second place a type of drive for reversion (1+2dotinversion) for two scanning impulses, data-signal reversal of poles one as follows, the reason that double source drive HSD (HalfSourceDriving) display panel produces vertical bright concealed wire is described.
Fig. 3 shows the pel array schematic diagram of half source drive display panel, wherein G representative is with the sweep trace of line direction arrangement, D representative is with the data line of column direction arrangement, sweep trace and data line are staggered to form pixel cell, pixel cell represents its position with Pxy, wherein x represents xth row, and y represents y row.As shown in Figure 3, in HSD display panel, the shared data line of pixel cell that left and right is adjacent; Connect different sweep traces with the pixel cell that a line is adjacent, the pixel cell being spaced a pixel cell with a line connects identical sweep trace.
In driving order, carry out from top to bottom being undertaken scanning (as G1, G2 to G9) by sweep trace, when scanning, sweep trace applies high voltage to the transistor of the pixel cell be connected with it, now transistor is opened, and the data-signal that the data line that reception is connected with it imports into.Specifically, with the pixel cell of same a line, the odd column pixel unit of data line side can first be driven, and the even column pixels unit of data line opposite side is then driven.For example, when scanning sweep trace G1, pixel cell P11, P13 receive the data-signal that data line D1, D2 import into respectively; When scanning sweep trace G2, pixel cell P12, P14 receive the data-signal that data line D1, D2 import into respectively.The schematic diagram of the HSD display panel that the polarity of Fig. 4 display data signal is reversed after two scan periods, on data line, the reversal of poles result of data-signal is as positive and negative number that indicates in Fig. 4.
Fig. 5 shows the drive waveforms figure of the sweep signal in Fig. 4 on sweep trace and the data-signal on data line (Data).As shown in Figure 5, due to RC signal delay effect, the square wave data-signal on data line in fact and nonideal square wave, but as some bending at voltage transformation place of Fig. 5 data-signal display.When sweep trace is opened successively, charge successively to pixel cell, owing to being the drive waveforms adopting 1+2Dot, so the pixel cell (P11 of such as first row on odd column, P21, P31, P41) data-signal obtained belongs to tail end charging, the better meeting of waveform causes brightness brighter, and the pixel cell (P12 of such as secondary series on even column, P22, P32, P42) data-signal obtained belongs to initiating terminal charging, because of reversal of poles charge waveforms comparatively missionary society cause brightness darker, so entirety seems to be exactly vertical bright concealed wire, as the bright dark effect of Fig. 6 display, wherein L represents bright, and D representative is dark.
Refer to Fig. 7, the schematic diagram of its display half source drive display panel of the present invention.Half source drive display panel of the present invention comprise arrange in the row direction sweep trace (as G1, G2 ..., G9), along column direction arrangement data line (as D1, D2 ..., D4), the pixel cell (its position represents with Pxy) be staggered to form by sweep trace and data line, the scan drive circuit 10 be electrically connected with sweep trace and the data drive circuit 20 that is electrically connected with data line.The number of sweep trace and data line is not limited to shown in figure, and the sweep trace of Fig. 7 display and the number of data line are only example and illustrate.Pixel cell can be red (R) pixel, indigo plant (B) pixel and green (G) pixel, also can be white (W) pixel.In half source drive display panel of invention, the shared data line of pixel cell that left and right is adjacent; Connect different sweep traces with the pixel cell that a line is adjacent, the pixel cell being spaced a pixel cell with a line connects identical sweep trace.As shown in Figure 7, scan drive circuit 10 have be electrically connected with sweep trace multiple sweep trace contacts (as A1, A2 ..., A9), data drive circuit 20 have be electrically connected with data line multiple data line contacts (as B1, B2 ..., B4).Sweep signal is exported to sweep trace by sweep trace contact by scan drive circuit 10, and data-signal is exported to data line by data line contact by data drive circuit 20.
As shown in Figure 7, data line is sequentially electrically connected to the data line contact of data drive circuit 20 by its putting in order on a display panel.But in half source drive display panel of the present invention, the order of connection of the sweep trace contact of sweep trace and scan drive circuit 10 is then different.As shown in Figure 7, the sweep trace contact of scan drive circuit 10 is sequential, sequentially exports sweep signal.According to the present invention, the distribution of sweep trace is a cycle with 2n bar sweep trace, n be more than or equal to 4 even number, in this distribution period, the n-th+k sweep trace contact connects 2n+1-k article of sweep trace, and wherein k is the integer of 1 ~ n.For example, equal 4 with n, four pixel cells of eight sweep traces, same column explain, and during k=1, namely the 5th sweep trace contact connects the 8th article of sweep trace; During k=2, namely the 6th sweep trace contact connects the 7th article of sweep trace; During k=3, namely the 7th sweep trace contact connects the 6th article of sweep trace; During k=1, namely the 8th sweep trace contact connects the 5th article of sweep trace.That is, in this distribution period, the sweep trace (G1 to G4) of the first half number is sequentially electrically connected with sweep trace contact (A1 to A4); The sweep trace of later half number is electrically connected with sweep trace contact with reverse sequence, is electrically connected A6, G6 electrical connection A7, G5 electrical connection A8 as G8 is electrically connected A5, G7.The feature of this wire structures to avoid display frame to produce vertical bright concealed wire, is detailed later.
In half source drive display panel of the present invention, still adopt two scanning impulses, a type of drive for reversion (1+2dotinversion) is taken second place in data-signal reversal of poles one, only on the wire structures of sweep trace, do change, so as to solving the not good problem of vertical bright concealed wire display quality that existing half source drive display panel adopts this type of drive to produce.Half source drive display panel shown in Fig. 7 of the present invention is in driving process, scan drive circuit 10 be according to putting in order of sweep trace contact carry out scanning (that is, sequentially sweep signal is provided according to putting in order of sweep trace contact), sequentially scan the sweep trace be electrically connected with sweep trace contact.With the pixel cell of same a line, the sweep trace of the first half number is in driving process, and the odd column pixel unit of data line side can first be driven, and the even column pixels unit of data line opposite side is then driven; But in the scanning line driving process of later half number, the even column pixels unit of data line side can first be driven, and the odd column pixel unit of data line opposite side is then driven.For example, above-mentioned be in the example in a cycle with 8 sweep traces, in the lump with reference to figure 8, front four sweep traces can sequentially drive pixel cell P11, P12, P21, P22, and then four sweep traces then sequentially drive pixel cell P42, P41, P32, P31.With reference to the bright dark state shown in figure 7, this make the charge characteristic of P11 and P42 with, be all belong to charging tail end, brightness is all brighter; And the charge characteristic of P12 and P41 are together, be all belong to charging initiating terminal, brightness is all darker; All the other then, P21 and P32 is with, P22 and P31 together.Therefore, as shown in Figure 7, final bright dark result is, with the bright dark state interval arrangement of the pixel cell of a line, the bright dark state interval arrangement of every n/2 pixel cell in the pixel cell of same row, if the first two pixel cell is bright, latter two pixel cell is dark.This makes the bright evenly dark of display frame, and does not have the ill effect of vertical bright concealed wire.
In another embodiment of what, can not adjust the wire structures of sweep trace, but export the sequential of sweep signal by adjustment scan drive circuit 10, also can reach identical technology effect.Specifically, scan drive circuit 10 with 2n bar sweep trace, the capable pixel cell of n for scan cycle, n be more than or equal to 4 even number, sweep signal is sent to front n bar sweep trace by scan drive circuit 10 in order, and adopts inverted order mode and sweep signal is sent to rear n bar sweep trace.Like this, in the pixel cell that front n bar sweep trace is corresponding, first can drive the pixel cell of data line first side, the then pixel cell of the second side of driving data line relative what first side; In the pixel cell that rear n bar sweep trace is corresponding, first can drive the pixel cell of data line second side, the then pixel cell of driving data line relative what first side.In this embodiment pixel cell bright dark state derive with above-mentioned with, therefore to repeat no more.
Half source drive display panel of the present invention is by improveing the wire laying mode of sweep trace, in a distribution period, the sweep trace of the first half number is sequentially electrically connected to scan drive circuit, the sweep trace of later half number is then electrically connected to scan drive circuit with reverse sequence, so adopt data-signal reversal of poles one take second place the type of drive of a reversion time, the bright dark state interval arrangement of pixel cell can be made, such picture looks like uniformly, therefore solves the problem of vertical bright concealed wire in prior art.In addition, the present invention also exports the sequential of sweep signal by adjustment scan drive circuit, reach identical technology effect.
In sum; although the present invention discloses as above with preferred embodiment; but above preferred embodiment is also not used to limit the present invention; those of ordinary skill in the art; without departing from the spirit and scope of the present invention; all can do various change and retouching, the scope that therefore protection scope of the present invention defines with claim is as the criterion.
Claims (8)
1. a half source drive display panel, is characterized in that, comprise:
Sweep trace, arranges in the row direction;
Data line, arranges along column direction;
Pixel cell, is staggered to form by sweep trace and data line; The shared data line of pixel cell that left and right is adjacent; Connect different sweep traces with the pixel cell that a line is adjacent, the pixel cell being spaced a pixel cell with a line connects identical sweep trace;
Scan drive circuit, have the multiple sweep trace contacts be electrically connected with sweep trace, sweep signal is exported to sweep trace by sweep trace contact by scan drive circuit; And
Data drive circuit, have the multiple data line contacts be electrically connected with data line, data-signal is exported to data line by data line contact by data drive circuit;
The wherein sweep trace contact sequential of scan drive circuit, the distribution of sweep trace is a cycle with 2n bar sweep trace, n be more than or equal to 4 even number, in this distribution period, n-th+k sweep trace contact connects 2n+1-k article of sweep trace, and wherein k is the integer of 1 ~ n.
2. half source drive display panel according to claim 1, is characterized in that: scan drive circuit scans according to putting in order of sweep trace contact, sequentially scans the sweep trace be electrically connected with sweep trace contact.
3. half source drive display panel according to claim 1, is characterized in that: n equals 4.
4. half source drive display panel according to claim 1, is characterized in that: scan drive circuit and data drive circuit drive pixel cell in the to take second place some mode of reversion of two scanning impulse data-signals reversal of poles one.
5. half source drive display panel according to claim 1, it is characterized in that: with in the pixel cell of a line, the sweep trace of the first half number is in driving process, the pixel cell of data line first side can first be driven, and the pixel cell of the second side that data line is contrary with the first side is then driven; In the scanning line driving process of later half number, the pixel cell of data line second side can first be driven, and the pixel cell of data line first side is then driven.
6. a half source drive display panel, is characterized in that, comprise:
Sweep trace, arranges in the row direction;
Data line, arranges along column direction;
Pixel cell, is staggered to form by sweep trace and data line; The shared data line of pixel cell that left and right is adjacent; Connect different sweep traces with the pixel cell that a line is adjacent, the pixel cell being spaced a pixel cell with a line connects identical sweep trace;
Scan drive circuit, is electrically connected with sweep trace, and sweep signal is exported to sweep trace; And
Data drive circuit, is electrically connected with data line, and data-signal is exported to data line;
Wherein scan drive circuit with 2n bar sweep trace, the capable pixel cell of n for scan cycle, n be more than or equal to 4 even number, sweep signal is sent to front n bar sweep trace by scan drive circuit in order, and adopts inverted order mode and sweep signal is sent to rear n bar sweep trace.
7. half source drive display panel according to claim 6, is characterized in that: n equals 4.
8. half source drive display panel according to claim 6, is characterized in that: scan drive circuit and data drive circuit drive pixel cell in the to take second place some mode of reversion of two scanning impulse data-signals reversal of poles one.
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