CN111477137A - Demux display screen structure and driving method thereof - Google Patents

Demux display screen structure and driving method thereof Download PDF

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Publication number
CN111477137A
CN111477137A CN202010270091.6A CN202010270091A CN111477137A CN 111477137 A CN111477137 A CN 111477137A CN 202010270091 A CN202010270091 A CN 202010270091A CN 111477137 A CN111477137 A CN 111477137A
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sub
pixel
column
line
demux
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熊克
谢建峰
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Fujian Huajiacai Co Ltd
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Fujian Huajiacai Co Ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/08Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements

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  • Physics & Mathematics (AREA)
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  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The invention discloses a Demux display screen structure and a driving method thereof, wherein the Demux display screen structure comprises: the display device comprises a plurality of pixel units and two Demux lines, wherein each pixel unit comprises a plurality of sub-pixels, a plurality of gate lines, twelve data lines and seven source lines, and one side of the first pixel unit is provided with an initial data line; the starting data line is positioned on the left side of the pixel unit and is used for connecting a sub-pixel of the first pixel unit which is not connected by the data line; a data line is arranged between each column of sub-pixel pairs, each data line is connected with a TFT switch, and the data lines are positioned in the first column to the sixth column and the seventh column to the twelfth column and divided into two groups; the two Demux lines are respectively connected with the grid electrodes of one group of TFT switches of each pixel unit, the input ends of six TFT switches of each group are respectively connected with six source lines one by one, and the initial data line is independently connected with one source line. The technical scheme can reduce the number of source lines of the driving unit.

Description

Demux display screen structure and driving method thereof
Technical Field
The invention relates to the field of display screens, in particular to a Demux display screen structure and a driving method thereof.
Background
The design of the display screen with the narrow frame and the full screen is mainstream, with the wide popularization of the display screen, from the aspect of screen occupation ratio, the initial generation iPhone screen occupation ratio in 2007 is only about 50%, in the following years, the mobile phone screen occupation ratio is continuously improved, but the improvement range is not large.
Disclosure of Invention
Therefore, it is desirable to provide a Demux display panel structure and a driving method thereof, which can greatly reduce the number of source lines and reduce the manufacturing cost of the driving unit.
To achieve the above object, the inventors provide a Demux display screen structure, comprising: the display device comprises a plurality of pixel units and two Demux lines, wherein each pixel unit comprises a plurality of sub-pixels, a plurality of gate lines, twelve data lines and seven source lines, and one side of the first pixel unit is provided with an initial data line;
the pixel unit comprises a plurality of sub-pixels, the sub-pixels of the pixel unit are arranged in an array mode and comprise a plurality of rows of sub-pixels, the sub-pixels of each pixel unit are divided into twelve rows of sub-pixel pairs, and each row of sub-pixel pair comprises two rows of sub-pixels;
the starting data line is positioned on the left side of the pixel unit and is used for connecting one sub-pixel which is not connected by the data line in the first column of sub-pixel pairs of the first pixel unit;
a data line is arranged between each column of sub-pixel pairs, each data line is connected with a TFT switch, twelve TFT switches in total are arranged, the output ends of the TFT switches are connected with the data line, all the TFT switches are divided into two groups, the TFT switches are positioned in the first column to the sixth column and divided into one group according to the column sequence, and the TFT switches are positioned in the seventh column to the twelfth column and divided into the other group;
the first Demux line is connected with the grid electrodes of one group of TFT switches of each pixel unit, the second Demux line is connected with the grid electrodes of the other group of TFT switches of each pixel unit, the input ends of the six TFT switches of each group are respectively connected with the six source lines one by one, and the initial data line is independently connected with one source line;
each row of sub-pixels comprises an upper gate line and a lower gate line, each data line is used for connecting the two sub-pixels in each row of pixels, and the two sub-pixels connected by each data line are respectively connected with the data line through one of the two gate lines in the row.
Further, one data line is respectively connected with two sub-pixels in two adjacent sub-pixel pairs in each row.
Furthermore, two adjacent sub-pixel pairs in the same row are provided, the left sub-pixel in one sub-pixel pair is connected with the right data line of the sub-pixel pair through the gate line on the upper side of the row, and the right sub-pixel is connected with the left data line of the sub-pixel pair through the gate line on the lower side of the row;
in another sub-pixel pair, the left sub-pixel is connected to the left data line of the sub-pixel pair through the gate line on the lower side of the row, and the right sub-pixel is connected to the right data line of the sub-pixel pair through the gate line on the lower side of the row.
Furthermore, the input ends of the TFT switch of the first column of sub-pixel pair and the TFT switch of the seventh column of sub-pixel pair are respectively connected with a source line;
the input ends of the TFT switch of the second column of sub-pixel pairs and the TFT switch of the eighth column of sub-pixel pairs are respectively connected with a source line;
the input ends of the TFT switch of the third column of sub-pixel pair and the TFT switch of the ninth column of sub-pixel pair are respectively connected with one source line;
the input ends of the TFT switch of the sub-pixel pair in the fourth column and the TFT switch of the sub-pixel pair in the tenth column are respectively connected with one source line;
the input ends of the TFT switch of the sub-pixel pair in the fifth column and the TFT switch of the sub-pixel pair in the eleventh column are respectively connected with one source line;
the input terminals of the TFT switch of the sub-pixel pair in the sixth column and the TFT switch of the sub-pixel pair in the twelfth column are respectively connected with one source line.
Further, the display device further comprises a driving unit, wherein the driving unit is connected with the source lines.
Further, the plurality of sub-pixels are arranged in an array in sequence in the manner of R, G, B.
The inventor provides a driving method of a Demux display screen structure, which is applied to the Demux display screen structure in any one of the embodiments, and comprises the following steps:
opening a gate line of a row of sub-pixels;
during the period that one gate line is opened, the driving unit transmits signals to the sub-pixels connected with the initial data line through the source line and sequentially opens the two Demux lines;
during the opening period of the Demux line of the first strip, the driving unit transmits signals to the sub-pixels connected with the data lines positioned at the first column to the sixth column through the source lines, and during the opening period of the Demux line of the second strip, the driving unit transmits signals to the sub-pixels connected with the data lines positioned at the seventh column to the twelfth column through the source lines;
opening another gate line of a row of sub-pixels;
sequentially turning on two Demux lines during the turning on of the other gate line;
during the opening period of the Demux line of the first strip, the driving unit transmits signals to the sub-pixels connected with the data lines positioned at the first column to the sixth column through the source lines, and during the opening period of the Demux line of the second strip, the driving unit transmits signals to the sub-pixels connected with the data lines positioned at the seventh column to the twelfth column through the source lines;
and driving the sub-pixels of each row by circulating the steps.
Different from the prior art, the technical scheme can reduce the number of source lines of the driving unit, so that the driving unit becomes narrower, and the lower boundary of the display screen is reduced. In addition, the pixel connection mode provided by the method is matched with a special time sequence, so that the purpose of saving the power consumption of the pure color picture of the display screen can be achieved.
Drawings
FIG. 1 is a schematic diagram of an internal structure of a left side of a Demux display panel according to an embodiment;
FIG. 2 is an internal structural view of a middle portion of a Demux display structure according to a first embodiment;
FIG. 3 is a diagram of the internal structure of the right side of the Demux display structure according to the first embodiment;
FIG. 4 is a schematic diagram of the internal structure of the left side of the Demux display panel according to the second embodiment;
FIG. 5 is a diagram of the structure of the inside of the middle part of a Demux display structure according to the second embodiment;
fig. 6 is an internal structure diagram of the right side of the Demux display structure according to the second embodiment.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1 to 6, the present embodiment provides a Demux display structure, including: the pixel structure comprises a plurality of pixel units and two Demux lines (Demux1 and Demux2), wherein each pixel unit comprises a plurality of sub-pixels, a plurality of gate lines (G1, G2, G3 and G4 …), twelve data lines (D2, D3 and D4 … D13) and seven source lines (S1, S2 and S3 … S7), and a starting data line D1 is arranged on one side of a first pixel unit. The pixel unit comprises a plurality of sub-pixels, the sub-pixels of the pixel unit are arranged in an array mode and comprise a plurality of rows of sub-pixels, the sub-pixels of each pixel unit are divided into twelve rows of sub-pixel pairs, and each row of sub-pixel pairs comprises two rows of sub-pixels. The starting data line is positioned at the left side of the pixel unit, and the starting data line (the starting data line is a data line which can be independently connected with a source line without a Demux line) is used for connecting one sub-pixel which is not connected with the data line in the first column of sub-pixel pairs. A data line is arranged between each column of sub-pixel pairs, and each data line is connected with a Thin Film Transistor (TFT) switch, and twelve TFT switches in total. The output ends of the TFT switches are connected with the data lines, and all the TFT switches are divided into two groups. According to the column sequence, the position from the first column to the sixth column is divided into one group, and the position from the seventh column to the twelfth column is divided into another group. The Demux line of the first strip is connected to the gates of the TFT switches of one group of each pixel cell, and the Demux line of the second strip is connected to the gates of the TFT switches of the other group of each pixel cell. The input terminals of the six TFT switches of each group are connected to six source lines (S2 to S7) one by one, and the start data line is connected to one source line (S1) individually. Each row of sub-pixels comprises an upper gate line and a lower gate line, each data line is used for connecting the two sub-pixels in each row of pixels, and the two sub-pixels connected by each data line are respectively connected with the data line through one of the two gate lines in the row.
The technical scheme can reduce the number of Source lines (Source L ine) of a driving unit (IC) (less than the Source L ine of the conventional Demux or HSD) and make the IC narrower, thereby reducing the lower boundary (Border) of the display screen.
In this application (first and second embodiments), the display panel structure further includes a driving unit connected to the plurality of source lines. The number of source lines is reduced because the drive unit adopts a Demux design mode, and when the source lines are connected with an initial data line in a plane through a TFT switch, an HSD mode is used for carrying out arrangement design on sub-pixels, so that the number of the source lines is greatly reduced. Due to the fact that the number of the source lines is reduced, not only is the Y axis of the driving unit reduced, but also the manufacturing cost of the driving unit is saved, and components in the driving unit are reduced.
In the present application, a plurality of sub-pixels are sequentially arranged in an array in the form of R (red), G (green), and B (blue). In some embodiments, the subpixel arrangement may be in other arrangements, such as R, B, G, R, B, G … arrangement, or may be similarly arranged with the addition of W (white).
In the present application, the gate lines are located at upper and lower sides of each row of sub-pixel pairs. Specifically, G1 and G2 are located at the upper and lower sides of the first row of sub-pixel pairs, G3 and G4 are located at the upper and lower sides of the second row of sub-pixel pairs, and G2n and G2n +1 are located at the upper and lower sides of the nth row of sub-pixel pairs.
Referring to fig. 1, in the first embodiment, the pixels L ayout of the pixel unit are arranged as a reference and repeatedly appear in the display screen for a plurality of times, D1 to D13 are Data lines (Data L ine) in the display screen, wherein the start Data line D1 is substantially the same as the Data lines (D2, D3, D4 … D13), except that the start Data line D1 is connected to a Source line alone, and the Data lines (D2, D3, D4 … D13) are connected to the Source line through Demux TFT switches, and S1 to S7 are Source L ine coming out of the driving unit.
Referring to fig. 1, a data line is respectively connected to two sub-pixels in two adjacent sub-pixel pairs in each row, for example, in two adjacent sub-pixel pairs in the same row, the left sub-pixel in one sub-pixel pair is connected to the right data line of the sub-pixel pair through the gate line on the upper side of the row, and the right sub-pixel is connected to the left data line of the sub-pixel pair through the gate line on the lower side of the row. In another sub-pixel pair, the left sub-pixel is connected to the left data line of the sub-pixel pair through the gate line on the lower side of the row, and the right sub-pixel is connected to the right data line of the sub-pixel pair through the gate line on the lower side of the row.
Specifically, the left side of the display screen is S1, S1 is not connected to the TFT switch of Demux, S1 is in-plane D1, and only G sub-pixel data is transmitted; s2 is connected with D2 in the display screen through the TFT switch of Demux1 and connected with D8 in the display screen through the TFT switch of Demux 2; s3 is connected with D3 in the display screen through the switch of the Demux1TFT and connected with D9 in the display screen through the TFT switch of Demux 2; s4 is connected with D4 in the display screen through the TFT switch of Demux1 and connected with D10 in the display screen through the TFT switch of Demux 2; s5 is connected with D5 in the display screen through the TFT switch of Demux1 and connected with D11 in the display screen through the TFT switch of Demux 2; s6 is connected with D6 in the display screen through the TFT switch of Demux1 and connected with D12 in the display screen through the TFT switch of Demux 2; s7 is connected to D7 in the display screen through the TFT switch of Demux1 and to D13 in the display screen through the TFT switch of Demux 2.
That is, the TFT switch in the first column subpixel pair (via D2) and the TFT switch in the seventh column subpixel pair (via D8) are connected to the second source line, respectively; the TFT switch in the second column subpixel pair (via D3) and the TFT switch in the eighth column subpixel pair (via D9) are connected to the third source line, respectively; the TFT switch in the third column of subpixel pairs (via D4) and the TFT switch in the ninth column of subpixel pairs (via D10) are connected to the fourth source line, respectively; the TFT switch of the sub-pixel pair in the fourth column (through D5) and the TFT switch of the sub-pixel pair in the tenth column (through D11) are respectively connected with the fifth source line; the TFT switch of the sub-pixel pair in the fifth column (through D6) and the TFT switch of the sub-pixel pair in the eleventh column (through D12) are respectively connected with the sixth source line; the TFT switch in the sixth column subpixel pair (through D7) and the TFT switch in the twelfth column subpixel pair (through D13) are connected to the seventh source line, respectively.
Because the Source L ine is connected with the Data L ine in the display screen surface after passing through the Demux, the quantity of the Source L ine can be 2 times less than that of the common display screen, when the Demux TFT is switched on and off, the L ayout design is carried out in the display screen surface in an HSD mode, the Source L ine of the application is reduced by 2 times, and the total quantity of the Source L ine is reduced by 4 times than that of the common display screen.
Referring to fig. 1, for S1, when G1 is turned on, since there is no sub-pixel connected to G1 in S1, even if Demux1 is turned on, no sub-pixel Data is transmitted in S1, similarly Demux2 is turned on, S1 does not transmit sub-pixel Data, when G2 is turned on and Demux1 is turned on, the sub-pixel connected to G2 in S1 is G sub-pixel ①, the Data transmission in S1 is G sub-pixel ① Data, and when Demux2 is turned on, the sub-pixel connected to G2 in S1 is still G sub-pixel ①, so S1 still transmits G sub-pixel Data ①, the Data transmission of S1 when G1 and G2 are turned on is repeated in other rows in the same column, for example, between G3 and G4, and S1 transmits G ② when G4 is turned on.
Taking S2 as an example, the Data transfer process of S2 is introduced, when G1 is turned on and Demux1 is turned on, S2 transfers the Data of R sub-pixel (1) to D2 via TFT switch of Demux1, Demux1 is turned off, Demux2 is turned on, S2 transfers the Data of R sub-pixel (2) to D2 via Demux2, when G2 is turned on and Demux2 is turned on, S2 transfers the Data of B sub-pixel (3) to D2 via TFT switch of Demux2, Demux2 is turned off, when Demux2 is turned on, S2 transfers the Data of B sub-pixel (4) to D2 via Demux 2. this Data transfer process of S2 will be repeated in R/R/R/B/B/B transfer mode, other Data 2 transfers also are similar to Data transfer processes of S2, Data transfer in R/R/R/B/B/S G/B transfer order, and Data transfer processes are performed in R/R/B/S2/B/B/S/B/B transfer order.
Two consecutive identical sub-pixels on Source L ine are transmitted, for example, in a pure color picture, green (or blue or red), S1 only transmits the data of green sub-pixel G, without voltage high-low inversion, voltage change frequency is low, power consumption is low on S1, S2, S3 do not transmit G sub-pixel data, at this time, S2, S3 only transmit 0V voltage, without voltage high-low inversion, power consumption is low, S4, S5, S6, S7 transmit two consecutive G sub-pixel data before and after, although other sub-pixel data are transmitted, the data voltage transmitting G sub-pixel is low in change frequency, and the data voltage transmitting G sub-pixel is low according to the formula of power consumption P1/2 f C U2And f is the voltage change frequency, and when the voltage change frequency of Source L ine is reduced, the power consumption P is also reduced, so that the design of the patent can save the power consumption of a pure color picture.
Referring to fig. 2, Source L ine at the leftmost side of fig. 2 is other sub-pixels of D13 in fig. 1, and at the rightmost side is other sub-pixels of Dm-12 in fig. 3, actually fig. 2 and fig. 1 are the same sub-pixel arrangement, namely a schematic diagram of fig. 2 in the middle of the display screen.
Referring to FIG. 3, the leftmost Source L ine of FIG. 3 is the other sub-pixels Dm-12 of FIG. 2, Sn transmits only B sub-pixel data, which is only connected to odd-level gates, as opposed to S1 (which is only connected to even-level gates), but whose sub-pixel transmission principle is similar to S1. in practice, FIG. 3 and FIG. 2 are the same sub-pixel arrangement, i.e., FIG. 3 is a schematic diagram of the right side of the display panel. FIGS. 2 and 3 are only schematic diagrams of FIG. 1 in different positions of the display panel, and are essentially the same as FIG. 1.
In the second embodiment, in order to sequentially drive the sub-pixels in the same column according to the gate lines in the second embodiment, the sub-pixels with different colors are on the same source. Therefore, the same data line is connected with the sub-pixels in different columns in the sub-pixel pairs of two adjacent rows and the same column. For example, D3 is connected to the sub-pixel (3) in the first row, D4 is connected to the sub-pixel (7) in the second row directly below the sub-pixel (3) in the first row, and D3 is connected to the source line to transmit more types of sub-pixels. Other data lines may also be varied similarly to this.
Referring to FIG. 4, in the second embodiment, the left side of the display screen is S1, S1 is not connected to the Demux TFT switch, S1 is the in-plane D1, and only the R/G sub-pixel data is transmitted; s2 is connected with D2 in the display screen through the TFT switch of Demux1 and connected with D8 in the display screen through the TFT switch of Demux 2; s3 is connected with D3 in the display screen through the TFT switch of Demux1 and connected with D9 in the display screen through the TFT switch of Demux 2; s4 is connected with D4 in the display screen through the TFT switch of Demux1 and connected with D10 in the display screen through the TFT switch of Demux 2; s5 is connected with D5 in the display screen through the TFT switch of Demux1 and connected with D11 in the display screen through the TFT switch of Demux 2; s6 is connected with D6 in the display screen through the TFT switch of Demux1 and connected with D12 in the display screen through the TFT switch of Demux 2; s7 is connected to D7 in the display screen through the TFT switch of Demux1 and to D13 in the display screen through the TFT switch of Demux 2.
In the second embodiment, a Column Inversion (Column Inversion) driving method may also be adopted, so that the display screen displays the Dot display effect (Dot display is generally Dot driving), and since the Column Inversion driving method saves power consumption more than Dot driving, the second embodiment can save power consumption and improve the display effect of the display screen. Of course, in the first embodiment, a Column Inversion (Column Inversion) driving method may be adopted.
In the second embodiment, referring to fig. 4, for S1 as an example, when G1 is turned on, since there is no sub-pixel connected to G1 in S1, even if Demux1 is turned on, no sub-pixel Data is transmitted in S1, similarly, Demux2 is turned on, S1 does not transmit sub-pixel Data, when G2 is turned on and Demux1 is turned on, the sub-pixel connected to G2 in S1 is G sub-pixel ①, when S1 transmits G sub-pixel ① Data, when Demux2 is turned on, the sub-pixel connected to G2 in S2 is still G sub-pixel 2, therefore, when S2 transmits G sub-pixel Data 2, when G2 is turned on, Demux2 transmits G sub-pixel Data 2, when S2 is turned on, the sub-pixel connected to G2 is R sub-pixel 2, when S2 transmits R sub-pixel Data, when S2 is turned on, the S2 transmits G sub-pixel Data, when S2 is turned on, the S2 is still transmitted, even if S2 is turned on, the S2 is not transmitted, the sub-pixel Data is transmitted, when S2 is still transmitted, the S2 is turned on, the S2, the Data is transmitted, and when S2 is not transmitted.
In the second embodiment, taking S as an example, please refer to FIG. 4, which describes the Data transmission process of S, wherein when G is turned on and Demux is turned on, S transmits the Data of R sub-pixel to D through the TFT switch of Demux, Demux is turned off, when Demux is turned on, S transmits the Data of B sub-pixel to G/Data through Demux, when G is turned on, S transmits the Data of G sub-pixel to D through the TFT switch of Demux, Demux is turned off, when Demux is turned on, S transmits the Data of G sub-pixel to G/Data B sub-pixel to G/Data/Data transfer process, and when G is turned on, S transmits the Data of R sub-pixel to D through the TFT switch of Demux, Demux is turned off, when Demux is turned on, S transmits the Data of G sub-pixel to G/B sub-pixel to G/Data, and G/S transmit the Data to B/S through R sub-pixel in a R/G/B/S, and R/B transfer processes, and R/S transfer processes, and R/B/S transfer Data in a similar order.
In the Source L ine, not only two identical sub-pixels are transmitted, but also 4 identical sub-pixels are transmitted, for example, in S2, after 2 identical sub-pixels are transmitted, another identical 2 sub-pixels are transmitted, and in S3, 4B sub-pixels are transmitted, and then 2G sub-pixel data are transmitted, in a pure color picture, for example, blue (or green and red), S1 transmits R/G sub-pixel data, voltage is given to 0V, voltage does not need to be inverted high or low, power consumption on S1 is low, in S2, voltage change is performed after 2B are continuously transmitted, voltage change frequency on S1 is low, in S3, after data of 4B sub-pixels are transmitted, other data are transmitted, so that voltage change frequency on S3 is high or low, in S4, S5, S6 and S7 transmit data of 2B sub-pixels, and power consumption of other sub-pixel data is low according to the formula that power consumption of Source is high or low in power consumption of P1/2, and power consumption of Source 3 is low in S L ine2S1, S4, S5, S6 and S7 also save power consumption of blue, but do not save more power consumption on S3, but for such a display screen, the total power consumption becomes lower under a blue picture.
In fig. 5, the leftmost Source L ine of fig. 5 is the other subpixels of D13 of fig. 4, and the rightmost is the other subpixels of Dm-12 of fig. 6, in fact fig. 5 and 4 are the same subpixel arrangement, i.e., fig. 5 is a schematic view of fig. 4 in the middle of the display screen.
In FIG. 6, the leftmost Source L ine in FIG. 6 is the other sub-pixels Dm-12 in FIG. 5, and the B/G sub-pixel data is transmitted on Sn, which is connected to only the sub-pixels of the odd-level Gate, and is opposite to S1 (the sub-pixels are connected to only the even-level), but the sub-pixel transmission principle is similar to S1. in practice, FIG. 6 and FIG. 4 are the same sub-pixel arrangement, i.e., a schematic diagram of FIG. 4 on the right side of the display screen. FIGS. 5 and 6 only show the connection of FIG. 4 at different positions of the display screen, and the nature is the same as that of FIG. 4.
However, it should be further noted that the first data line of the pixel unit located in the middle of the display area and the last data line of the previous pixel unit are the same data line. The connection mode of the first data line in the middle pixel unit and the sub-pixel in the pixel unit is the same as the connection mode of the initial data line and the sub-pixel.
The embodiment further provides a driving method of a Demux display screen structure, which is applied to the Demux display screen structure described in the first embodiment and the second embodiment, and includes the following steps: one gate line of a row of sub-pixels is turned on. During the period that one gate line is opened, the driving unit transmits signals to the sub-pixels connected with the initial data line through the source line, and sequentially opens the two Demux lines. And during the opening period of the Demux line of the second strip, the driving unit transmits signals to the sub-pixels connected with the data lines positioned in the seventh column to the twelfth column through the source lines. The other gate line of a row of subpixels is turned on. During the other gate line is turned on, the two Demux lines are turned on in sequence. And during the opening period of the Demux line of the second strip, the driving unit transmits signals to the sub-pixels connected with the data lines positioned in the seventh column to the twelfth column through the source lines. And driving the sub-pixels of each row by circulating the steps.
It should be noted that the start data line is connected to only one gate line in a row of sub-pixels and controls one sub-pixel of the first sub-pixel pair of the first pixel unit of the plurality of pixel units. When the turned-on gate line is connected to the start data line, the driving unit transmits a signal to the sub-pixel connected to the start data line through the source line S1 and also transmits a signal to the sub-pixel connected to the data line through the source lines (S2 to S7); when the opened gate line is not connected with the initial data line, the driving unit does not transmit signals to the sub-pixel connected with the initial data line through the source line, and directly drives the sub-pixel corresponding to the data line.
It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.

Claims (7)

1. A Demux display screen structure comprising: the display device comprises a plurality of pixel units and two Demux lines, wherein each pixel unit comprises a plurality of sub-pixels, a plurality of gate lines, twelve data lines and seven source lines, and one side of the first pixel unit is provided with an initial data line;
the pixel unit comprises a plurality of sub-pixels, the sub-pixels of the pixel unit are arranged in an array mode and comprise a plurality of rows of sub-pixels, the sub-pixels of each pixel unit are divided into twelve rows of sub-pixel pairs, and each row of sub-pixel pair comprises two rows of sub-pixels;
the starting data line is positioned on the left side of the pixel unit and is used for connecting one sub-pixel which is not connected by the data line in the first column of sub-pixel pairs of the first pixel unit;
a data line is arranged between each column of sub-pixel pairs, each data line is connected with a TFT switch, twelve TFT switches in total are arranged, the output ends of the TFT switches are connected with the data line, all the TFT switches are divided into two groups, the TFT switches are positioned in the first column to the sixth column and divided into one group according to the column sequence, and the TFT switches are positioned in the seventh column to the twelfth column and divided into the other group;
the first Demux line is connected with the grid electrodes of one group of TFT switches of each pixel unit, the second Demux line is connected with the grid electrodes of the other group of TFT switches of each pixel unit, the input ends of the six TFT switches of each group are respectively connected with the six source lines one by one, and the initial data line is independently connected with one source line;
each row of sub-pixels comprises an upper gate line and a lower gate line, each data line is used for connecting the two sub-pixels in each row of pixels, and the two sub-pixels connected by each data line are respectively connected with the data line through one of the two gate lines in the row.
2. A Demux display screen structure according to claim 1, wherein a data line connects two subpixels in two adjacent subpixel pairs in each row, respectively.
3. A Demux display screen structure according to claim 1 or 2, characterized in that, in two adjacent sub-pixel pairs in the same row, the left sub-pixel in a sub-pixel pair is connected to the right data line of the sub-pixel pair through the gate line on the upper side of the row, and the right sub-pixel is connected to the left data line of the sub-pixel pair through the gate line on the lower side of the row;
in another sub-pixel pair, the left sub-pixel is connected to the left data line of the sub-pixel pair through the gate line on the lower side of the row, and the right sub-pixel is connected to the right data line of the sub-pixel pair through the gate line on the lower side of the row.
4. A Demux display screen structure according to claim 1, wherein the input terminals of the TFT switches in the first column of sub-pixel pairs and the TFT switches in the seventh column of sub-pixel pairs are connected to a source line;
the input ends of the TFT switch of the second column of sub-pixel pairs and the TFT switch of the eighth column of sub-pixel pairs are respectively connected with a source line;
the input ends of the TFT switch of the third column of sub-pixel pair and the TFT switch of the ninth column of sub-pixel pair are respectively connected with one source line;
the input ends of the TFT switch of the sub-pixel pair in the fourth column and the TFT switch of the sub-pixel pair in the tenth column are respectively connected with one source line;
the input ends of the TFT switch of the sub-pixel pair in the fifth column and the TFT switch of the sub-pixel pair in the eleventh column are respectively connected with one source line;
the input terminals of the TFT switch of the sub-pixel pair in the sixth column and the TFT switch of the sub-pixel pair in the twelfth column are respectively connected with one source line.
5. The Demux display screen structure of claim 1, further comprising a driving unit, wherein the driving unit is connected to the plurality of source lines.
6. The Demux screen structure of claim 1, wherein the plurality of sub-pixels are arranged in an array R, G, B.
7. A method for driving a Demux display panel structure, applied to a Demux display panel structure according to any one of claims 1 to 6, comprising the steps of:
opening a gate line of a row of sub-pixels;
during the period that one gate line is opened, the driving unit transmits signals to the sub-pixels connected with the initial data line through the source line and sequentially opens the two Demux lines;
during the opening period of the Demux line of the first strip, the driving unit transmits signals to the sub-pixels connected with the data lines positioned at the first column to the sixth column through the source lines, and during the opening period of the Demux line of the second strip, the driving unit transmits signals to the sub-pixels connected with the data lines positioned at the seventh column to the twelfth column through the source lines;
opening another gate line of a row of sub-pixels;
sequentially turning on two Demux lines during the turning on of the other gate line;
during the opening period of the Demux line of the first strip, the driving unit transmits signals to the sub-pixels connected with the data lines positioned at the first column to the sixth column through the source lines, and during the opening period of the Demux line of the second strip, the driving unit transmits signals to the sub-pixels connected with the data lines positioned at the seventh column to the twelfth column through the source lines;
and driving the sub-pixels of each row by circulating the steps.
CN202010270091.6A 2020-04-08 2020-04-08 Demux display screen structure and driving method thereof Pending CN111477137A (en)

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