CN113223437A

CN113223437A - Display screen, driving method and display device

Info

Publication number: CN113223437A
Application number: CN202110479396.2A
Authority: CN
Inventors: 杨文武; 李建雷; 袁海江
Original assignee: HKC Co Ltd
Current assignee: HKC Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-08-06

Abstract

The invention discloses a display screen, a driving method and a display device, wherein the display screen comprises a first screen provided with n rows of scanning lines, a second screen provided with m rows of scanning lines and a gate driving circuit, the second screen is arranged in a manner of being clung to the first screen, scanning lines G1, G2 … … Gn-1 and Gn are sequentially arranged in the first screen from one side far away from the second screen to one side close to the second screen, and scanning lines G1, G2 … … gm-1 and gm are sequentially arranged in the second screen from one side close to the first screen to one side far away from the first screen; in the same frame, the timing at which the gate driver circuit outputs the scan signal of the scan line G1 corresponds to the timing at which the scan signal of the scan line gm is output; the timing at which the gate driver circuit outputs the scanning signal of the scanning line Gn corresponds to the timing at which the scanning signal of the scanning line g1 is output. The two display screens scan in opposite directions, and the scanning signal moments of the scanning lines corresponding to the splicing position correspond to each other, so that the discontinuity of the pictures at the splicing position is improved, and better visual experience is brought to a user.

Description

Display screen, driving method and display device

Technical Field

The invention relates to the technical field of display, in particular to a display screen, a driving method and a display device.

Background

With the rapid development of thin film transistor liquid crystal displays, manufacturers actively adopt new technologies to improve the market competitiveness of products and reduce the product cost. Wherein, the concatenation screen sets up as a mainstream, can constantly increase the size of display screen, and can batch production simultaneously during the preparation, and the large-size display screen can be through the concatenation of a plurality of little display screens, and the price of the glass that polylith small-size display screen corresponds is more cost-effective for the glass's of a monoblock big display screen price, and is making the in-process that forms the display screen and more conveniently operates.

However, in the existing spliced screen project, because the spliced screens are formed by combining a plurality of identical display screens, when a plurality of display screens are scanned sequentially from a first line scanning line to a last line scanning line at the same time, the effect that two adjacent upper and lower splices look like is that a lower first-appearing picture is discontinuous at the spliced part, and the visual experience of a client is influenced.

Disclosure of Invention

In order to achieve the above object, the present invention provides a display panel, a driving method thereof, and a display device, which improve discontinuity of a screen at a connection between the display panels.

The invention discloses a display screen, which comprises a first screen, a second screen, a grid drive circuit and a conversion circuit, wherein the first screen is provided with n rows of scanning lines; the second screen is arranged close to the first screen and is provided with m rows of scanning lines, scanning lines G1, G2 … … Gn-1 and Gn are sequentially arranged in the first screen from the side far away from the second screen to the side close to the second screen, and scanning lines G1, G2 … … gm-1 and gm are sequentially arranged in the second screen from the side close to the first screen to the side far away from the first screen; the gate driving circuit sequentially outputs scanning signals corresponding to scanning lines G1, G2 … … Gn-1 and Gn to the first screen, and simultaneously sequentially outputs scanning signals corresponding to scanning lines gm, gm-1 … … G2 and G1 to the second screen; the conversion circuit is arranged in the second screen, the input end of the conversion circuit is connected with the scanning signal output by the grid drive circuit, and the output end of the conversion circuit is connected with the scanning line; when the gate driving circuit sequentially outputs scanning signals corresponding to scanning lines gm, gm-1 … … g2 and g1 to the second screen, the conversion circuit receives the scanning signals corresponding to the scanning line of the 2 a-th row in the m rows of the scanning lines in the second screen and opens the scanning line of the 2 a-1-th row, receives the scanning signals corresponding to the scanning line of the 2 a-1-th row and opens the scanning line of the 2 a-th row; n is a natural number greater than or equal to 2; m is a natural number of 2 or more; 2a is more than or equal to 2 and less than or equal to m, and a is a natural number more than or equal to 1.

Optionally, the conversion circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, and a control signal generation circuit; the control signal generating circuit is used for generating a control signal; the grid electrode of the first transistor is used for receiving the control signal, the source electrode of the first transistor is connected with the grid electrode driving circuit to receive the scanning signal of the 2 a-th row scanning line, and the drain electrode of the first transistor is connected with the 2 a-th row scanning line; the grid electrode of the second transistor is connected with the grid electrode of the first transistor, the source electrode of the second transistor is connected with the grid electrode driving circuit to receive the scanning signal of the 2a-1 th row of scanning lines, and the drain electrode of the second transistor is connected with the 2a-1 th row of scanning lines; the grid electrode of the third transistor is connected with the control signal, the source electrode of the third transistor is connected with the grid electrode driving circuit to receive the scanning signal of the 2 a-th row scanning line, and the drain electrode of the third transistor is connected with the corresponding 2 a-1-th row scanning line; the grid electrode of the fourth transistor is connected with the control signal, the source electrode of the fourth transistor is connected with the grid electrode driving circuit to receive the scanning signal of the 2a-1 th row of scanning lines, and the drain electrode of the fourth transistor is connected with the 2a nd row of scanning lines;

the first transistor and the second transistor are low-level conducting switches, and the third transistor and the fourth transistor are high-level conducting switches; when the control signal is a high-level signal, the third transistor and the fourth transistor are turned on, the first transistor and the second transistor are turned off, the third transistor receives a scanning signal of the 2 a-th row scanning line and outputs the scanning signal to the 2 a-1-th row scanning line, and the fourth transistor receives a scanning signal of the 2 a-1-th row scanning line and outputs the scanning signal to the 2 a-2-th row scanning line.

Optionally, the first screen is of a dual-gate structure, and the gate driving circuit further includes a scanning direction switching module; the first screen includes a switching circuit; when the scanning direction switching module controls the scanning lines G1 to scan Gn in sequence, the switching circuit receives scanning signals corresponding to the 2b-1 row of scanning lines in the n rows of scanning lines in the first screen and opens the 2b-1 row of scanning lines, and receives scanning signals corresponding to the 2b row of scanning lines and opens the 2b row of scanning lines; when the scanning direction switching module controls the scanning lines Gn to sequentially scan G1, the switching circuit receives a scanning signal corresponding to the 2 b-th row of scanning lines in the n rows of scanning lines in the first screen and opens the 2 b-1-th row of scanning lines, and receives a scanning signal corresponding to the 2 b-1-th row of scanning lines and opens the 2 b-th row of scanning lines.

Optionally, control switches are arranged on the first screen and the second screen, and the control switches are used for controlling the control signal generation circuit to generate a high level signal or a low level control signal.

Optionally, the first screen and the second screen are independent of each other and are spliced with each other to form the display screen, the gate driving circuit includes a first gate driving circuit and a second gate driving circuit, when the first gate driving circuit sequentially outputs scanning signals corresponding to the scanning lines G1, G2 … … Gn-1, Gn to the first screen, the second gate driving circuit simultaneously and sequentially outputs scanning signals corresponding to the scanning lines gm, gm-1 … … G2, G1 to the second screen.

Optionally, the first screen and the second screen are integrally formed.

Optionally, the number of scan lines in the first screen is the same as the number of scan lines in the second screen, that is, m is equal to n.

The invention also discloses a driving method for driving the display screen, which comprises the following steps:

outputting scanning signals corresponding to the scanning lines G1, G2 … … Gn-1 and Gn to a first screen, and simultaneously outputting scanning signals corresponding to the scanning lines gm, gm-1 … … G2 and G1 to a second screen;

sequentially receiving scanning signals corresponding to scanning lines G1 to Gn in n rows of scanning lines in the first screen and sequentially opening scanning lines G1 to Gn;

receiving a scanning signal corresponding to a 2 a-th row of scanning lines in m rows of scanning lines in the second screen, opening a 2 a-1-th row of scanning lines, receiving a scanning signal corresponding to the 2 a-1-th row of scanning lines, and opening a 2 a-th row of scanning lines;

wherein, in the same frame, the time of the scan signal of the scan line G1 corresponds to the time of the scan signal of the output scan line gm; the timing of the scanning signal of the scanning line Gn corresponds to the timing of outputting the scanning signal of the scanning line g 1;

n is a natural number greater than or equal to 2; m is a natural number of 2 or more; 2a is more than or equal to 2 and less than or equal to m, and a is a natural number more than or equal to 1.

Optionally, the driving method further includes the steps of:

sequentially receiving scanning signals corresponding to a 2 b-th row of scanning lines in n rows of scanning lines in the first screen and opening a 2 b-1-th row of scanning lines, receiving scanning signals corresponding to a 2 b-1-th row of scanning lines and opening a 2 b-th row of scanning lines;

receiving the scanning signals corresponding to the scanning lines g1 to gm in the m rows of the scanning lines in the second screen and sequentially turning on the scanning lines g1 to gm.

The invention also discloses a display device which comprises the display screen.

Compared with the scheme that a plurality of display screens sequentially scan from the first row to the last row, adjacent display screens scan oppositely, a gate drive circuit outputs a scanning signal to control a scanning line G1 of the first screen far away from the second screen to scan a scanning line Gn of the first screen near the second screen; simultaneously, control the second screen is kept away from the scanning line gm of first screen, to the second screen is close to the scanning line g1 of first screen scans, and the scanning signal's of the scanning line that the concatenation department corresponds moment is corresponding, so can be synchronous in the concatenation department, avoids the picture of the junction between the display screen discontinuous for the picture display of display screen junction is gentler, improves the display effect, brings better visual experience for the customer.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic diagram of a display device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a display screen of an embodiment of the present invention;

FIG. 3 is a schematic view of a display screen of another embodiment of the present invention;

FIG. 4 is a schematic diagram of a dual gate display architecture in accordance with an embodiment of the present invention;

FIG. 5 is a schematic diagram of a conversion circuit according to an embodiment of the invention;

FIG. 6 is a schematic diagram of gate opening according to an embodiment of the present invention;

FIG. 7 is a schematic of a gate open swap of an embodiment of the present invention;

FIG. 8 is a schematic view of a display screen of another embodiment of the present invention;

FIG. 9 is a schematic illustration of a multiple display screen mosaic according to an embodiment of the present invention;

fig. 10 is a schematic diagram of a driving method according to an embodiment of the invention.

100, a display device; 110. a display screen; 120. a first screen; 121. a switching circuit; 122. a control switch; 130. a second screen; 131. a conversion circuit; 132. a control signal generating circuit; 140. a gate drive circuit; 150. a time sequence control chip; 160. a third screen; 170. a fourth screen; q1, a first transistor; q2, a second transistor; q3, a third transistor; q4, fourth transistor.

Detailed Description

It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.

Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The invention will be further elucidated with reference to the drawings and alternative embodiments.

As shown in fig. 1 to 2, an embodiment of the present invention discloses a display device 100, which includes at least one display screen 110, the display screen includes a first screen 120, a second screen 130, a gate driving circuit 140 and a timing control chip 150, the first screen has n rows of scan lines, the second screen 130 has m rows of scan lines, the second screen 130 is disposed adjacent to the first screen 120, the first screen 120 has scan lines G1, G2 … … Gn-1, Gn arranged in sequence from a side far from the second screen 130 to a side near the second screen 130, the second screen 130 has scan lines G1, G2 … … gm-1, gm arranged in sequence from a side near the first screen 120 to a side far from the first screen 120, the distance between the scan lines Gn in the first screen and the scan lines G1 in the second screen 130 is the shortest distance between any two scan lines in the first screen 120 and the second screen 130, also the scan line closest to the splice in the two screens.

Correspondingly, the timing control chip 140 provides a timing signal for the gate driving circuit 150 to generate the scan signal, and the gate driving circuit 150 outputs the scan signal to control the scan line G1 of the first screen 120 far away from the second screen 130 to scan the scan line Gn of the first screen close to the second screen; at the same time, scan line g1, at which second screen 130 is positioned farther from first screen 120, is scanned toward scan line g1, at which the second screen is positioned closer to the first screen.

In the same frame, the timing at which the gate driving circuit 150 outputs the scan signal of the scan line G1 corresponds to the timing at which the scan signal of the scan line gm is output; the timing at which the gate driving circuit outputs the scanning signal of the scanning line Gn corresponds to the timing at which the scanning signal of the scanning line g1 is output; n is a natural number greater than or equal to 2; m is a natural number greater than or equal to 2, wherein m is equal to n, so that the number of scanning lines of the first screen and the second screen is the same, the period corresponding to one frame is the same, and the scanning time and the time of each corresponding scanning line in the first screen and the second screen are the same, synchronous display of pictures is guaranteed, and the pictures are smoother; of course, as long as it is ensured that in the same frame, the timing at which the scan signal of the scan line G1 is output corresponds to the timing at which the scan signal of the scan line gm is output; the timing at which the scanning signal of the scanning line Gn is output corresponds to the timing at which the scanning signal of the scanning line g1 is output; then m and n may not be equal.

Specifically, the scanning lines in the first screen 120 and the second screen 130 scan oppositely, the first screen scans from G1 to Gn, the second screen scans from gm to G1, and the time of the scanning signal corresponding to the last scanning line Gn in the first screen and the scanning signal corresponding to the scanning line G1 in the second screen are the same time, so that the pictures at the joint are synchronized, and the situation that the pictures at the joint are jumped or discontinuous is avoided.

Of course, as shown in fig. 3, the scanning directions of the scanning lines in the first panel and the second panel are switched by the scanning direction switching module, that is, the scanning lines in the first panel and the second panel scan in opposite directions, the first panel 120 scans from Gn to G1, the second panel 130 scans from G1 to gm, the time of the scanning signal corresponding to the last scanning line Gn in the first panel 120 and the scanning line G1 in the second panel 130 is the same time, the time of the scanning signal output by the gate driving circuit of the scanning line G1 corresponds to the time of the scanning signal output by the scanning line gm, the scanning time is the same in one frame, the starting time and the ending time of the scanning are the same, the continuous images at the connection part are ensured, and the image display of the whole display panel is more gradual.

As shown in fig. 4 to 5, all scan lines in the second screen 130 are divided into a 2 a-th row scan line and a 2 a-1-th row scan line according to odd and even rows; the second screen adopts a double-gate display framework, the second screen comprises a conversion circuit, the input end of the conversion circuit is connected with the gate drive circuit and receives the scanning signal output by the gate drive circuit, and the output end of the conversion circuit is connected with the 2a row scanning line and the 2a-1 row scanning line;

when the gate driving circuit 150 outputs the scan signals corresponding to the scan lines gm to g1 to the conversion circuit 131, the conversion circuit 131 controls and switches the turn-on sequence of the 2 a-th row scan line and the 2a-1 st row scan line;

wherein a is a natural number more than or equal to 1, and 2a is more than or equal to 2 and less than or equal to m.

Because the second screen is a dual-gate display architecture, if the scanning direction of the scanning lines in the second screen is changed, errors can occur in the display data received by the pixels in odd and even rows, so a conversion circuit is added, when the gate driving circuit outputs scanning signals corresponding to the scanning lines gm to g1 to the conversion circuit, the conversion circuit controls and exchanges the opening sequence of the 2a row scanning line and the 2a-1 row scanning line, when the scanning signals of the 2a row scanning line are received, the 2a-1 row scanning line is opened through the conversion circuit, and when the scanning signals of the 2a-1 row scanning line are received, the 2a row scanning line is opened through the conversion circuit 131, so that the data correctness is ensured.

Specifically, the conversion circuit 131 includes a first transistor Q1, a second transistor Q2, a third transistor Q3, a fourth transistor Q4, and a control signal generation circuit 132; the control signal generating circuit 132 is used for generating a control signal; the grid electrode of the first transistor is used for receiving the control signal, the source electrode of the first transistor is connected with the grid electrode driving circuit to receive the scanning signal of the 2 a-th row scanning line, and the drain electrode of the first transistor is connected with the 2 a-th row scanning line; the grid electrode of the second transistor is connected with the grid electrode of the first transistor, the source electrode of the second transistor is connected with the grid electrode driving circuit to receive the scanning signal of the 2a-1 th row of scanning lines, and the drain electrode of the second transistor is connected with the 2a-1 th row of scanning lines; the grid electrode of the third transistor is connected with the control signal, the source electrode of the third transistor is connected with the grid electrode driving circuit to receive the scanning signal of the 2 a-th row scanning line, and the drain electrode of the third transistor is connected with the corresponding 2 a-1-th row scanning line; the grid electrode of the fourth transistor is connected with the control signal, the source electrode of the fourth transistor is connected with the grid electrode driving circuit to receive the scanning signal of the 2a-1 th row of scanning lines, and the drain electrode of the fourth transistor is connected with the 2a nd row of scanning lines;

the first transistor and the second transistor are low-level conducting switches, and the third transistor and the fourth transistor are high-level conducting switches; when the control signal is a high-level signal, the third transistor and the fourth transistor are turned on, the first transistor and the second transistor are turned off, the third transistor receives the scanning signal of the 2 a-th row scanning line and outputs the scanning signal to the 2 a-1-th row scanning line, the fourth transistor receives the scanning signal of the 2 a-1-th row scanning line and outputs the scanning signal to the 2 a-2-th row scanning line, and therefore the display data received by the pixels in odd and even rows can be corresponded, and normal display is guaranteed.

Corresponding to fig. 6 and 7, taking the scanning lines G1 and G2 in the second panel as an example, when the control signal generated by the control signal generating circuit is L, the first transistor Q1 and the second transistor Q2 are turned on, the third transistor Q3 and the fourth transistor Q4 are turned off, and G1 and G2 are both normally connected to output in the original manner, and when the control signal is H, the third transistor Q3 and the fourth transistor Q4 are turned on, the first transistor Q1 and the second transistor Q2 are turned off, and the inputs and outputs of G1 and G2 are exchanged, so that the conversion circuit ensures the normal correspondence of the display data received by the pixels of the odd-even rows.

As another embodiment of the present application, as shown in fig. 8, all scan lines within the first screen 120 are divided into a 2 b-th row scan line and a 2 b-1-th row scan line according to odd and even rows; when the scanning direction switching module controls the scanning lines G1 to scan Gn in sequence, the switching circuit receives scanning signals corresponding to the 2b-1 row of scanning lines in the n rows of scanning lines in the first screen and opens the 2b-1 row of scanning lines, and receives scanning signals corresponding to the 2b row of scanning lines and opens the 2b row of scanning lines;

when the scanning direction switching module controls the scanning lines Gn to sequentially scan G1, the switching circuit receives a scanning signal corresponding to the 2 b-th row of scanning lines in the n rows of scanning lines in the first screen and opens the 2 b-1-th row of scanning lines, and receives a scanning signal corresponding to the 2 b-1-th row of scanning lines and opens the 2 b-th row of scanning lines.

The first screen 120 and the second screen 130 are the same, and adopt a dual-gate display architecture, the first screen 120 includes a switching circuit 121 and a control switch 122, the control switch has a switch button corresponding to the outside of the display device, and can be manually controlled or automatically controlled, if the first screen needs to scan from Gn to G1, and the second screen scans from G1 to gm, the switching circuit in the first screen is enabled to work by opening the control switch; the switching circuit 121 and the converting circuit 131 are the same circuit, the switching circuit also includes a control signal generating circuit 132, the control switch 122 controls the switching circuit 121 in the first screen 120 to be turned off and turned on, when the control switch 122 is turned off, the switching circuit 121 stops working, and the scanning signals corresponding to the 2 b-th row scanning line and the 2 b-1-th row scanning line control the corresponding 2 b-th row scanning line and the 2 b-1-th row scanning line to be turned on; when the control switch 122 is turned on, the switching circuit 121 generates different control signals to control and exchange the turn-on sequence of the 2 b-th row of scanning lines and the 2b-1 th row of scanning lines, of course, the control switch may also be applied to the second screen, and after the control signal generating circuit in the second screen generates the control signal, the control switch controls the output of the control signal to control the turn-on and turn-off of the corresponding transistor, which is equivalent to also controlling the switching circuit to stop working without conversion, so that the switching circuit is not only applicable to a dual-gate display architecture, but also applicable to a single-gate display architecture.

As another embodiment of the present application, different from the above embodiments, the first display screen and the second display screen are in a single gate display architecture, and in the same frame, the gate driving circuit sequentially outputs scanning signals of scanning lines G1 to Gn and turns on the scanning lines G1 to Gn, and simultaneously, the gate driving circuit sequentially outputs scanning signals of scanning lines gm to G1 and turns on the scanning lines gm to G1;

wherein the moment when the gate driving circuit outputs a scan signal of a scan line G1 to turn on the scan line G1 corresponds to the moment when the scan signal of an output scan line gm turns on the scan line gm; the timing at which the gate driving circuit outputs a scan signal of a scan line Gn to turn on the scan line Gn corresponds to the timing at which the scan line g1 is turned on by outputting a scan signal of a scan line g 1.

The corresponding scanning lines are opened towards the same direction by the two display screens, the scanning lines at the joint of the two display screens can be synchronously scanned, so that the displayed picture is more uniform, and the situation that the picture is not continuous due to asynchronous scanning at the joint is avoided, and the visual experience of a customer is influenced.

The first and second screens in any of the above embodiments may be integrally formed, as shown in fig. 1, by a large glass substrate divided into the first screen and the second screen; of course, the first screen and the second screen can also be manufactured respectively and then spliced and assembled together; the first screen and the second screen are independent from each other and are spliced with each other to form the display screen; the gate driving circuit comprises a first gate driving circuit and a second gate driving circuit, wherein when the first gate driving circuit sequentially outputs scanning signals corresponding to scanning lines G1, G2 … … Gn-1 and Gn to a first screen, the second gate driving circuit simultaneously and sequentially outputs scanning signals corresponding to scanning lines gm, gm-1 … … G2 and G1 to a second screen.

As another embodiment of the present application, different from the above embodiments, the display device includes N display screens, where N is a natural number equal to or greater than 2; correspondingly, as shown in fig. 9, taking two display screens as an example, the first display screen 110 includes a first screen 120 and a second screen 130, the second display screen 110 includes a third screen 160 and a fourth screen 170, the first screen 120 and the third screen 160 are simultaneously manufactured and formed, and the shape and size, the hardware circuit, the driving structure, and the like are the same, and the second screen 130 and the fourth screen 170 are simultaneously manufactured and formed, and the shape and size, the hardware circuit, the driving structure, and the like are the same; n display screens are from first display screen to the setting of lining up side by side of the nth display screen, theoretically, can realize that infinitely many display screens constitute this display screen side by side, based on current technological level promptly, can make and obtain practical bigger size's display screen.

As another embodiment of the present invention, as shown in fig. 10, a driving method for driving a display panel as described in any of the above embodiments is disclosed, including the steps of:

s1: outputting scanning signals corresponding to the scanning lines G1, G2 … … Gn-1, Gn to the first screen, and simultaneously outputting scanning signals corresponding to the scanning lines gm, gm-1 … … G2, G1 to the second screen:

s2: sequentially receiving scanning signals corresponding to scanning lines G1 to Gn in n rows of scanning lines in the first screen and sequentially opening scanning lines G1 to Gn;

s3: receiving a scanning signal corresponding to a 2 a-th row of scanning lines in m rows of scanning lines in the second screen, opening a 2 a-1-th row of scanning lines, receiving a scanning signal corresponding to the 2 a-1-th row of scanning lines, and opening a 2 a-th row of scanning lines;

in the same frame, the timing at which the gate driving circuit outputs the scan signal of the scan line G1 corresponds to the timing at which the scan signal of the scan line gm is output; the timing at which the gate driving circuit outputs the scanning signal of the scanning line Gn corresponds to the timing at which the scanning signal of the scanning line g1 is output;

In the scheme, the time of the scanning signals corresponding to the two closest scanning lines between the two adjacent display screens corresponds to the time of the scanning signals, and the grid driving circuit outputs the scanning signals to control the scanning line G1 of the first screen far away from the second screen to scan the scanning line Gn of the first screen close to the second screen; simultaneously, controlling the scanning line gm of the second screen far away from the first screen to scan the scanning line g1 of the second screen close to the first screen; therefore, the starting time of the scanning lines at the joint of the first screen and the second screen is the same, and the discontinuous phenomenon of the picture at the splicing part is reduced or even eliminated.

The driving method further includes the steps of:

The first screen and the second screen are both in a double-gate structure, and all scanning lines in the 120 are divided into 2 b-th scanning lines and 2 b-1-th scanning lines according to odd and even rows;

the first screen 120 and the second screen 130 also adopt a dual-gate display architecture, the first screen scans from Gn to G1, the second screen scans from G1 to gm, and the scanning signals corresponding to the 2b row scanning line and the 2b-1 row scanning line control to turn on the corresponding 2b row scanning line and the 2b-1 row scanning line; the condition that pictures at the splicing position are discontinuous can be improved by controlling and exchanging the opening sequence of the 2 b-th row of scanning lines and the 2b-1 st row of scanning lines in the first screen.

It should be noted that, on the premise of no conflict, the technical solutions of the present invention can be applied in combination; in addition, the limitations of the steps involved in the present solution are not considered to limit the order of the steps without affecting the implementation of the specific solution, and the steps written in the foregoing may be executed first, or executed later, or even executed simultaneously, and as long as the present solution can be implemented, all the steps should be regarded as belonging to the protection scope of the present invention.

The technical scheme of the invention can be widely applied to various display screens, such as an IPS type display screen (In-Plane Switching), a VA type display screen (Vertical Alignment technology), an MVA type display screen (Multi-domain Vertical Alignment technology), and of course, other types of display screens, such as an organic light-emitting display screen (OLED display screen for short), can be applied to the above scheme.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. A display screen, comprising:

the first screen is provided with n rows of scanning lines;

the second screen is arranged in a manner of being tightly attached to the first screen, and m rows of scanning lines are arranged in the second screen by adopting a double-grid structure; scanning lines G1, G2 … … Gn-1 and Gn are arranged in the first screen from the side far away from the second screen to the side close to the second screen in sequence; scanning lines g1, g2 … … gm-1, gm are sequentially arranged in the second screen from the side close to the first screen to the side far away from the first screen;

a gate driving circuit for sequentially outputting scanning signals corresponding to the scanning lines G1, G2 … … Gn-1 and Gn to the first screen, and simultaneously sequentially outputting scanning signals corresponding to the scanning lines gm, gm-1 … … G2 and G1 to the second screen; and

the conversion circuit is arranged in the second screen, the input end of the conversion circuit is connected with the scanning signal output by the grid drive circuit, and the output end of the conversion circuit is connected with the scanning line; when the gate driving circuit sequentially outputs scanning signals corresponding to scanning lines gm, gm-1 … … g2 and g1 to the second screen, the conversion circuit receives the scanning signals corresponding to the scanning line of the 2 a-th row in the m rows of the scanning lines in the second screen and opens the scanning line of the 2 a-1-th row, receives the scanning signals corresponding to the scanning line of the 2 a-1-th row and opens the scanning line of the 2 a-th row;

n is a natural number more than or equal to 2, m is a natural number more than or equal to 2, a is more than or equal to 2 and less than or equal to 2, and a is a natural number more than or equal to 1.

2. The display panel according to claim 1, wherein the conversion circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, and a control signal generation circuit; the control signal generating circuit is used for generating a control signal;

the grid electrode of the first transistor is used for receiving the control signal, the source electrode of the first transistor is connected with the grid electrode driving circuit to receive the scanning signal of the 2 a-th row scanning line, and the drain electrode of the first transistor is connected with the 2 a-th row scanning line;

the grid electrode of the second transistor is connected with the grid electrode of the first transistor, the source electrode of the second transistor is connected with the grid electrode driving circuit to receive the scanning signal of the 2a-1 th row of scanning lines, and the drain electrode of the second transistor is connected with the 2a-1 th row of scanning lines;

the grid electrode of the third transistor is connected with the control signal, the source electrode of the third transistor is connected with the grid electrode driving circuit to receive the scanning signal of the 2 a-th row scanning line, and the drain electrode of the third transistor is connected with the corresponding 2 a-1-th row scanning line;

the grid electrode of the fourth transistor is connected with the control signal, the source electrode of the fourth transistor is connected with the grid electrode driving circuit to receive the scanning signal of the 2a-1 th row of scanning lines, and the drain electrode of the fourth transistor is connected with the 2a nd row of scanning lines;

the first transistor and the second transistor are low-level conducting switches, and the third transistor and the fourth transistor are high-level conducting switches;

when the control signal is a high-level signal, the third transistor and the fourth transistor are turned on, the first transistor and the second transistor are turned off, the third transistor receives a scanning signal of the 2 a-th row scanning line and outputs the scanning signal to the 2 a-1-th row scanning line, and the fourth transistor receives a scanning signal of the 2 a-1-th row scanning line and outputs the scanning signal to the 2 a-2-th row scanning line.

3. The display screen of claim 2, wherein the first screen adopts a dual-gate architecture, and the gate driving circuit further comprises a scanning direction switching module; the first screen includes a switching circuit;

when the scanning direction switching module controls the scanning lines G1 to scan Gn in sequence, the switching circuit receives scanning signals corresponding to the 2b-1 row of scanning lines in the n rows of scanning lines in the first screen and opens the 2b-1 row of scanning lines, and receives scanning signals corresponding to the 2b row of scanning lines and opens the 2b row of scanning lines;

4. The display screen of claim 3, wherein the first screen and the second screen are provided with control switches for controlling the control signal generating circuit to generate a high level signal or a low level control signal.

5. The display screen of claim 1, wherein the first screen and the second screen are independent of each other and are tiled together to form the display screen;

the gate driving circuit comprises a first gate driving circuit and a second gate driving circuit, wherein when the first gate driving circuit sequentially outputs scanning signals corresponding to scanning lines G1, G2 … … Gn-1 and Gn to a first screen, the second gate driving circuit simultaneously and sequentially outputs scanning signals corresponding to scanning lines gm, gm-1 … … G2 and G1 to a second screen.

6. A display screen as recited in claim 1, wherein the first screen and the second screen are integrally formed.

7. A display screen as recited in claim 1, wherein the number of scan lines in the first screen is the same as the number of scan lines in the second screen, i.e., m-n.

8. A driving method for driving the display panel according to any one of claims 1 to 6, comprising the steps of:

in the same frame, the timing at which the scan signal of the scan line G1 is output corresponds to the timing at which the scan signal of the scan line gm is output; the timing at which the scanning signal of the scanning line Gn is output corresponds to the timing at which the scanning signal of the scanning line g1 is output;

9. The driving method according to claim 8, characterized by further comprising the steps of:

10. A display device characterized by comprising a display screen according to any one of claims 1 to 7.