CN111477146A

CN111477146A - Display screen structure with high screen ratio and driving method thereof

Info

Publication number: CN111477146A
Application number: CN202010272129.3A
Authority: CN
Inventors: 谢建峰; 熊克
Original assignee: Fujian Huajiacai Co Ltd
Current assignee: Fujian Huajiacai Co Ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-07-31

Abstract

The invention discloses a display screen structure with high screen ratio and a driving method thereof, wherein the display screen structure with high screen ratio comprises the following components: the pixel structure comprises a plurality of pixel units and three SW lines, wherein each pixel unit comprises a plurality of sub-pixels, a plurality of gate lines, six data lines and two source lines; a data line is arranged between two columns of sub-pixels of each column of sub-pixel pair, each data line is connected with a TFT switch, and all the TFT switches are divided into three groups; the three SW lines are connected with the gate lines of the TFT switches of one group of each pixel unit, and the input ends of the two TFT switches of each group are respectively connected with the three source lines one by one; each row of sub-pixels comprises an upper gate line and a lower gate line, and each data line is used for connecting the two sub-pixels in each row of pixels. The number of source lines can be reduced, so that the Y axis of the driving unit becomes smaller, and a feasible scheme can be provided for a display screen structure with a high screen ratio.

Description

Display screen structure with high screen ratio and driving method thereof

Technical Field

The invention relates to the field of display screens, in particular to a display screen structure with a high screen ratio 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 high-screen-ratio display screen 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 present invention provides a display screen structure with a high screen ratio, comprising: the pixel structure comprises a plurality of pixel units and three SW lines, wherein each pixel unit comprises a plurality of sub-pixels, a plurality of gate lines, six data lines and two source lines;

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 six rows of sub-pixel pairs, and each row of sub-pixel pair comprises two rows of sub-pixels;

a data line is arranged between two columns of sub-pixels of each column of sub-pixel pair, each data line is connected with a TFT switch, six TFT switches are arranged in total, the output ends of the TFT switches are connected with the data line, all the TFT switches are divided into three groups, the TFT switches are positioned in the first column and the second column and divided into a first group, the TFT switches are positioned in the third column and the fourth column and divided into a second group, and the TFT switches are positioned in the fourth column and the fifth column and divided into a third group according to the column sequence;

the SW line of the first strip is connected with the gate line of the TFT switch of the first group of each pixel unit, the SW line of the second strip is connected with the TFT switch of the second group of each pixel unit and the gate line, the SW line of the third strip is connected with the TFT switch of the third group of each pixel unit and the gate line, and the input ends of the two TFT switches of each group are respectively connected with the two source lines one by one;

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.

Furthermore, the input terminals of the TFT switch of the first column sub-pixel pair and the TFT switch of the third column sub-pixel pair are respectively connected with the first source line;

the input ends of the TFT switch of the second column of sub-pixel pairs and the TFT switch of the fourth column of sub-pixel pairs are respectively connected with a second source line;

the inputs of the TFT switches in the third column of pairs of sub-pixels and the TFT switches in the sixth column of pairs of sub-pixels are connected to a third source line, respectively.

Further, one data line connects one sub-pixel in the sub-pixel pair, and also connects one sub-pixel in the other sub-pixel pair.

Further, one data line connects the two sub-pixels of the sub-pixel pair.

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 display screen structure with a high screen ratio, which is applied to the display screen structure with the high screen ratio in any one of the embodiments, and the driving method comprises the following steps:

opening a gate line of a row of sub-pixels;

sequentially turning on three SW lines during the period that one gate line is turned on;

the driving unit transmits signals to sub-pixels connected to data lines positioned at first and second columns through the source lines during the first SW line being turned on, transmits signals to sub-pixels connected to data lines positioned at third and fourth columns through the source lines during the second SW line being turned on, and transmits signals to sub-pixels connected to data lines positioned at fifth and sixth columns through the source lines during the third SW line being turned on;

opening another gate line of a row of sub-pixels;

sequentially turning on the three SW lines during the period that the other gate line is turned on;

and driving the sub-pixels of each row by circulating the steps.

Compared with the prior art, the technical scheme reduces the number of the source lines, so that the Y axis of the driving unit is reduced, the number of components required for driving the source lines in the driving unit is reduced, a feasible scheme can be provided for a display screen structure with a high screen ratio, and the manufacturing cost of the driving unit is reduced.

Drawings

FIG. 1 is an internal structural view of a display screen structure according to an embodiment;

FIG. 2 is a timing diagram of a source line S1 of the display screen structure according to an embodiment;

FIG. 3 is a timing diagram of a source line S2 of one embodiment of the display screen structure;

FIG. 4 is an internal structural view of a display screen structure according to a second embodiment;

FIG. 5 is a timing diagram of a source line S1 according to the second embodiment;

FIG. 6 is a timing diagram of the source line S2 of the display screen 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 display screen structure with a high screen ratio, including: a plurality of pixel units each including a plurality of sub-pixels, a plurality of gate lines (G1, G2, G3, G4 …), six data lines (D1, D2, D3 … D6), two source lines (S1, S2), and three SW lines (SW1, SW2, and SW 3). The pixel unit comprises a plurality of sub-pixels, and 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 six columns of sub-pixel pairs, and each column of sub-pixel pair comprises two columns of sub-pixels. A data line is arranged between two columns of sub-pixels of each column of sub-pixel pair, each data line is connected with a Thin Film Transistor (TFT) switch, the total number of the TFT switches is six, and the output end of each TFT switch is connected with the data line. All the TFT switches are divided into three groups, and in the order of columns, at the first column and the second column, are divided into a first group, at the third column and the fourth column, are divided into a second group, and at the fourth column and the fifth column, are divided into a third group. The first SW line is connected with the gate lines of the first group of TFT switches of each pixel unit, the second SW line is connected with the second group of TFT switches of each pixel unit and the gate lines, the third SW line is connected with the third group of TFT switches of each pixel unit and the gate lines, and the input ends of the two TFT switches of each group are respectively connected with the two source lines one by one. 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.

According to the technical scheme, the number of Source lines (Source L ine) is reduced, so that the Y axis of the driving unit (IC) is reduced, fewer components are required for driving the Source L ine in the IC, a feasible scheme can be provided for a display screen structure with a high screen ratio, and the manufacturing cost of the IC is reduced.

In this application (embodiment one and embodiment two), the display panel structure further includes a driving unit, and the driving unit is connected to the plurality of source lines, so that the number of source lines in the present invention is reduced, and when the source lines are connected to the in-panel data lines through the TFT switches, the HSD is used to design the arrangement of the sub-pixels, thereby greatly reducing the number of source lines. 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.

Referring to fig. 1, in the present application, a plurality of sub-pixels are sequentially arranged in an array in a manner 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).

Referring to fig. 1, 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, S1 is connected to D1/D3/D5 inside the display screen through the TFT switches on SW1/SW2/SW3, respectively, and S2 is connected to D2/D4/D6 inside the display screen through SW1/SW2/SW3, respectively. S1/S2 and SW1/SW2/SW3 are connected until D1-D6 in the plane form a pixel unit. A plurality of such cyclic sequences may appear inside the display screen, the resolution of the display screen being different, and the number of such cyclic sequences appearing being different.

That is, the TFT switch in the first column subpixel pair (through D1) and the TFT switch in the third column subpixel pair (through D3) are connected to the first source line, respectively; the TFT switch of the second column sub-pixel pair (through D2) and the TFT switch of the fourth column sub-pixel pair (through D4) are respectively connected with the second source line; the TFT switches in the third column subpixel pair (via D3) and the TFT switches in the sixth column subpixel pair (via D6) are connected to the third source line, respectively.

Referring to fig. 1 and 2, a Data transmission process according to an embodiment is described by taking S as an example, where S transmits R sub-pixel Data when G is on and SW is on, S transmits G sub-pixel Data when SW is off and SW is on, and S transmits B sub-pixel Data when SW is off and SW is on, S transmits B sub-pixel Data when G is on and SW is on, SW is off and SW is on, S transmits R sub-pixel Data when SW is off and SW is on, and S transmits G sub-pixel Data when SW is off and SW is on, and when G is on, S transmits Data is the same as when G is on in a Data timing diagram of S in fig. 2, and when G is on, S transmits Data is the same as when G is on, and as when G is on, Data is transmitted as when G is on in a Data timing diagram of S in fig. 2.

Referring to fig. 3, the Data timing transmission process of S2 in fig. 3 is described as follows: when G1 is turned on and SW1 is turned on, S2 transfers G sub-pixel data; when SW1 is turned off and SW2 is turned on, S2 transmits the B sub-pixel data; when SW1 and SW2 are turned off and SW3 is turned on, S2 transfers the R sub-pixel. When G2 is turned on and SW1 is turned on, S2 transfers the R sub-pixel data; when SW1 is turned off and SW2 is turned on, S2 transfers G sub-pixel data; when SW1 and SW2 are turned off and SW3 is turned on, S2 transfers the B sub-pixel. When G3 is turned on, the case where S2 transfers Data is the same as when G1 is turned on, and reference may be made to the case where G3 is turned on in the Data timing chart of S2 in fig. 3; when G4 is turned on, the case where S2 transfers Data is the same as when G2 is turned on, and reference may be made to the case where G4 is turned on in the Data timing chart of S2 in fig. 3.

In summary, the Data cycle sequence of S1 transmits Data according to the R/G/B/B/R/G rule and repeatedly transmits Data to the display screen according to the rule, the Data cycle sequence of S2 transmits Data according to the G/B/R/R/G/B rule and repeatedly transmits Data to the display screen according to the rule, the Data transmission modes of S1 and S2 can enable the display screen to have only one polarity voltage in one frame in S1 when displaying a white picture, and reduce the frequency of positive and negative voltage back-and-forth overturning of S1 in one frame (other Source L ine also has the rule), so that the power consumption of the white picture of the display screen is reduced, and the Source line L ine of the display screen is only 1/6 of a common display screen because the patent applies the L ayout mode of a Demux + HSD structure.

Referring to fig. 4, in the second embodiment, in order to sequentially drive the sub-pixels in the same row according to the gate lines, the sub-pixels in different colors are on the same source. Therefore, the same data line is connected with the sub-pixels in two adjacent rows of different sub-pixel pairs. One data line connects one sub-pixel in the sub-pixel pair in which the first row is located and also connects one sub-pixel in the other sub-pixel pair, e.g., D1 connects sub-pixel (1) and sub-pixel (4). But the data line connects the two sub-pixels of the sub-pixel pair in the second row, e.g., D1 connects sub-pixel (10) and sub-pixel (7). Other data lines may also be varied similarly to this.

Referring to fig. 4, specifically, S1 is connected to in-plane D1 through SW1, to in-plane D3 through SW2, and to in-plane D5 through SW 3; s2 is connected to in-plane D2 through SW1, to in-plane D4 through SW2, and to in-plane D6 through SW 3; the present patent will describe the driving method of the present patent with the sub-pixel data transmission at S1 (which can be analyzed in conjunction with fig. 5): when the G1 is turned on, the SW1 is turned on, the S1 transmits the R sub-pixel data (1) to the D1 in the plane through the SW1, the SW1 is turned off, when the SW2 is turned on, the S1 transmits the G sub-pixel data (2) to the D3 in the plane through the SW2, the SW1 and the SW2 are turned off, and when the SW3 is turned on, the S1 transmits the B sub-pixel data (3) to the D5 in the plane through the SW 3; when G2 is turned on, SW1 is turned on, S1 transmits B sub-pixel data (4) to D1 in the plane through SW1, SW1 is turned off, SW2 is turned on, S1 transmits R sub-pixel data (5) to D3 in the plane through SW2, SW1 and SW2 are turned off, and SW3 is turned on, S1 transmits G sub-pixel data (6) to D5 in the plane through SW 3; when the G3 is turned on, the SW1 is turned on, the S1 transmits the G sub-pixel data (7) to the D1 in the plane through the SW1, the SW1 is turned off, when the SW2 is turned on, the S1 transmits the R sub-pixel data (8) to the D3 in the plane through the SW2, the SW1 and the SW2 are turned off, and when the SW3 is turned on, the S1 transmits the G sub-pixel data (9) to the D5 in the plane through the SW 3; when G4 is turned on, SW1 is turned on, S1 transmits the R sub-pixel data (10) to the D1 in the plane through SW1, SW1 is turned off, when SW2 is turned on, S1 transmits the B sub-pixel data (11) to D3 in the plane through SW2, SW1 and SW2 are turned off, and when SW3 is turned on, S1 transmits the R sub-pixel data (12) to D5 in the plane through SW 3. In summary, S1 repeats the transmission of the sub-pixel data of R/G/B/B/R/G/G/R/B/R in the display panel; s2 is similar to S1, except that the sub-pixel data is not transmitted, S2 is repeated in the display panel with the sub-pixel data of G/B/R/R/G/B/B/R/B/G/B/G.

In the application, except that the leftmost side and the left and right sides of the display screen have the column inversion display effect, and other areas have the Dot display effect, the power-saving driving method of the column inversion is adopted to achieve the Dot display effect, so that the display quality of the display screen is improved, the power consumption of the display screen is saved, and the service life of the display screen is prolonged.

Referring to fig. 5 and 6, the pixel unit transmits sub-pixel data in a sequence of G1-G4 columns of sub-pixels, and the sub-pixel data in fig. 5 and 6 are repeatedly transmitted according to different resolutions of the display panel.

The inventor also provides a driving method of a display screen structure with a high screen ratio, which is applied to the display screen structure with the high screen ratio in any one of the embodiments, and the driving method comprises the following steps: one gate line of a row of sub-pixels is turned on. During one gate line is turned on, three SW lines are sequentially turned on. The driving unit transmits signals to the sub-pixels connected to the data lines at the first and second column positions through the source lines during the SW line on period of the first bar, transmits signals to the sub-pixels connected to the data lines at the third and fourth column positions through the source lines during the SW line on period of the second bar, and transmits signals to the sub-pixels connected to the data lines at the fifth and sixth column positions through the source lines during the SW line on period of the third bar. The other gate line of a row of subpixels is turned on. During the other gate line is turned on, the three SW lines are sequentially turned on. The driving unit transmits signals to the sub-pixels connected to the data lines at the first and second column positions through the source lines during the SW line on period of the first bar, transmits signals to the sub-pixels connected to the data lines at the third and fourth column positions through the source lines during the SW line on period of the second bar, and transmits signals to the sub-pixels connected to the data lines at the fifth and sixth column positions through the source lines during the SW line on period of the third bar. And driving the sub-pixels of each row by circulating the steps.

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

1. The utility model provides a display screen structure of high screen ratio which characterized in that includes: the pixel structure comprises a plurality of pixel units and three SW lines, wherein each pixel unit comprises a plurality of sub-pixels, a plurality of gate lines, six data lines and two source lines;

2. A high aspect ratio display panel structure as claimed in claim 1, wherein the input terminals of the TFT switches of the first column of sub-pixel pairs and the TFT switches of the third column of sub-pixel pairs are connected to the first source line respectively;

3. A high screen ratio display screen structure as claimed in claim 1, wherein one data line connects one of the sub-pixels in the sub-pixel pair and also connects one of the sub-pixels in the other sub-pixel pair.

4. A high screen ratio display screen structure as claimed in claim 1, wherein one data line connects the two sub-pixels of the sub-pixel pair.

5. The panel structure of claim 1, further comprising a driving unit, wherein the driving unit is connected to the plurality of source lines.

6. A high screen ratio display screen structure as claimed in claim 1, wherein the plurality of sub-pixels are arranged in an array R, G, B.

7. A driving method of a high-screen-ratio display screen structure, which is applied to the high-screen-ratio display screen structure of any one of claims 1 to 6, is characterized by comprising the following steps:

opening a gate line of a row of sub-pixels;

opening another gate line of a row of sub-pixels;

and driving the sub-pixels of each row by circulating the steps.