Display panel, control method and display device

Abstract

The application discloses a display panel, a control method and a display device. The display panel comprises a plurality of row scanning lines, a plurality of data lines, a plurality of pixel units, a first scanning driver and a second scanning driver. Each row scanning line is connected with at least one switch tube in series to form a switch tube array, and comprises a first sub scanning line and a second sub scanning line. Each row scanning line comprises a first scanning section and a second scanning section, which are arranged on the two sides of the switch tube respectively. The first scanning section is connected with the first sub scanning line. The second scanning section is connected with the second sub scanning line. The first scanning driver outputs a first row scanning signal to the first sub scanning line. The second scanning driver outputs a second row scanning signal to the second sub scanning line. The on and off of the switch tube can be controlled to realize the split-screen display in the source line direction. The number of split screens in the first direction can be selected by adjusting the number of switch tubes on each row scanning line. Each split screen can have the same frequency or different frequencies.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel, a control method, and a display device. Background Art

[0002] OLED foldable products are becoming increasingly popular in the market, and split-screen display has become a common requirement. Display content can be reasonably distributed and adjusted in the expanded and folded states. For example, when the upper half of the screen is displayed, the lower half of the screen can open new applications for interaction.

[0003] Existing split-screen solutions are more common in the GOA direction, while those in the source direction are less common. In a GOA-direction split-screen solution, the display area is divided into multiple horizontal regions, each of which is connected to the gate line of a corresponding driver circuit. By controlling the driver circuit of each region, the display content of each region can be independently controlled, achieving a split-screen display effect.

[0004] However, on wide-screen mobile phones, the screen is folded along the gate line. When the folded screen is further used in a split-screen solution, it is required to be able to split the screen along the source line in the driving circuit. Summary of the Invention

[0005] In order to solve the technical problem that some applications require split-screen display along the source line direction in the driving circuit, but there are currently few split-screen solutions in the source line direction, the present application provides a display panel, a control method and a display device.

[0006] In a first aspect, an embodiment of the present application provides a display panel, wherein the display panel includes a display area and a non-display area surrounding the display area; the display area includes:

[0007] A plurality of row scan lines, each row scan line extending along a first direction, and each row scan line including a first sub-scan line and a second sub-scan line;

[0008] a plurality of data lines, wherein the plurality of data lines extend along a second direction;

[0009] A plurality of pixel units, a plurality of row scanning lines and a plurality of data lines are arranged crosswise to define a boundary of each pixel unit; the plurality of pixel units are arranged in an array;

[0010] The non-display area includes a first scan driver and a second scan driver, wherein the first scan driver is used to output a first row scan signal to the first sub-scan line; and the second scan driver is used to output a second row scan signal to the second sub-scan line.

[0011] Each of the row scanning lines is connected with at least one switch tube in series, and all the switch tubes form a switch tube array; each of the row scanning lines comprises a first scanning section and a second scanning section, the first scanning section and the second scanning section are located on both sides of the switch tube, the first scanning section is connected with the first sub scanning line, and the second scanning section is connected with the second sub scanning line.

[0012] In some embodiments, control ends of the switch tubes are connected to a driving chip; the driving chip is configured to output a control signal to control the switch tubes to be turned on or turned off.

[0013] In some embodiments, the driving chip is arranged in the non-display area, or the driving chip is electrically connected to the display panel through a printed circuit board.

[0014] In some embodiments, the number of switch tubes connected in series in each of the row scanning lines is the same.

[0015] In some embodiments, the switch tubes located in the same column extend in the second direction.

[0016] In some embodiments, the gate electrodes of the switch tubes located in the same column are connected to each other and connected to the same control signal, and the gate electrodes of the switch tubes located in different columns are not connected to each other and connected to different control signals.

[0017] In some embodiments, the switch tube array is a square, a rectangle or a parallelogram.

[0018] In a second aspect, the embodiments of the present application provide a display panel control method, the display panel being the display panel provided in any possible implementation manner of the first aspect, and the display panel control method comprises a same frequency display mode.

[0019] In the same frequency display mode, all the switch tubes are turned on, and the first row scanning signal and the second row scanning signal have the same frequency.

[0020] In some embodiments, the display panel control method further comprises a frequency division display mode.

[0021] In the frequency division display mode, the corresponding switch tubes in any column are turned off, the corresponding switch tubes in other columns in the switch tube array are turned on, and the first row scanning signal and the second row scanning signal have different frequencies.

[0022] In a third aspect, the embodiments of the present application provide a display device, the display device comprising the display panel provided in any possible implementation manner of the first aspect.

[0023] Compared to the prior art, the display panel provided by the embodiments of the present application has at least one switch connected in series on each row of scan lines, with all the switches forming a switch array. Each row of scan lines includes a first scan segment and a second scan segment, which are located on either side of the switch. The first scan segment is connected to the first sub-scan line, and the second scan segment is connected to the second sub-scan line to receive the corresponding scan signal. By controlling the conduction and cutoff of the switches, split-screen display can be achieved in the direction of the source line. By adjusting the number of switches on each row of scan lines, the number of split screens in the first direction can be selected. Each split screen can have the same or different frequencies. Operation is simple and convenient, making it well suited for applications requiring split-screen display along the source line in the driver circuit.

[0024] The display device provided in the embodiment of the present application can display split screens along the source line direction in the driving circuit, and each split screen can have the same frequency or different frequencies. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 Provides a schematic diagram of the display panel structure for an embodiment of the present application;

[0027] Figure 2 A schematic structural diagram of a display panel provided in one embodiment of the present application;

[0028] Figure 3 for Figure 2 The control timing diagram of the display panel provided by the illustrated embodiment;

[0029] Figure 4 A schematic structural diagram of a display panel provided in another embodiment of the present application;

[0030] Figure 5 for Figure 4 The control timing diagram of the display panel provided by the illustrated embodiment;

[0031] Marking Description:

[0032] 100 - display panel, 10 - display area, 20 - non-display area, 30 - first scan driver, 40 - second scan driver, 50 - driver chip, 60 - pixel unit, 11 - row scan line, 12 - data line, 13 - switch tube, 14 - gate control line. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0034] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0035] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0036] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0037] Figure 1 1 is a schematic diagram of the structure of a display panel 100 provided in an embodiment of the present application. The display panel 100 includes a display area 10 and a non-display area 20 surrounding the display area 10; the display area 10 includes a plurality of row scan lines 11, a plurality of data lines 12, and a plurality of pixel units 60; each row scan line 11 and each data line 12 are arranged to cross to define the boundary of each pixel unit 60; and a plurality of pixel units 60 are arranged in an array in the display area 10. In some embodiments, each pixel unit 60 includes a pixel driving circuit ( Figure 1 Not shown) and the light emitting unit ( Figure 1 not shown).

[0038] The light-emitting unit may include an anode, a cathode, and an organic light-emitting material disposed between the anode and the cathode. The output terminal of the pixel driving circuit is electrically connected to the anode (i.e., the pixel electrode) to control the operating state of the light-emitting unit. The input terminal of the pixel driving circuit is electrically connected to the row scan gate line and the data line 12.

[0039] like Figure 1 As shown, a plurality of row scan lines 11 are provided in the display area 10. The plurality of scan lines extend along a first direction (X direction), and each row scan line 11 includes a first sub-scan line and a second sub-scan line. A plurality of data lines 12 extend along a second direction (Y direction). The X direction is perpendicular to the Y direction.

[0040] The non-display area 20 includes a first scan driver 30 and a second scan driver 40. The first scan driver 30 is used to output a first row scan signal to the first sub-scan line; the second scan driver 40 is used to output a second row scan signal to the second sub-scan line.

[0041] In the display panel 100 provided in the embodiment of the present application, each row of scan lines 11 is connected in series with at least one switch tube 13, and all the switch tubes 13 constitute a switch tube array; each row of scan lines 11 includes a first scan segment and a second scan segment, and the first scan segment and the second scan segment are configured on both sides of the switch tube 13, the first scan segment is connected to the first sub-scan line, and receives the first row scan signal; the second scan segment is connected to the second sub-scan line, and receives the second row scan signal.

[0042] In the embodiment of the present application, the switch 13 connected in series with each scan line 11 is a field effect transistor (FET) having a gate, a source, and a drain. The gate of the switch 13 receives a control signal, and changes in the control signal can control the conduction or cutoff of the switch 13. The switch 13 can be an N-type field effect transistor or a P-type field effect transistor.

[0043] In some embodiments, the control terminal of the switch tube 13 is connected to the driver chip 50; the driver chip 50 is used to output a control signal to the control terminal of the switch tube 13 to control the switch tube 13 to be turned on or off. Figure 1 As shown, the driving chip 50 is disposed below the display area 10 ), or the driving chip 50 is electrically connected to the display panel 100 through a printed circuit board.

[0044] In some embodiments, the number of switch tubes 13 connected in series to each row of scan lines 11 is the same.

[0045] In some embodiments, the switching transistors 13 in the same column extend in the second direction.

[0046] In some embodiments, the switch tube array is a square, a rectangle, or a parallelogram. The split-screen display area 10 can be adjusted by setting a specific switch tube array and outputting a control signal to the gate control line 14.

[0047] like Figure 1 As shown, as an example, the display panel 100 is provided with a first scan driver 30 and a second scan driver 40 on both sides of the display area 10. The first scan driver 30 and the second scan driver 40 are both used to output multiple scan signals to scan the first scan segment or the second scan segment in each corresponding row of scan lines 11 line by line. The first scan driver 30 is electrically connected to the first scan segment of each row through the first scan line, as shown in FIG. Figure 1 The first scan line NscanL1 of the first row, the first scan line NscanL2 of the second row, ..., the first scan line NscanLN of the Nth row, N being a natural number greater than or equal to 1. Similarly, the second scan driver 40 is electrically connected to the second scan segment of each row through the second scan line, such as Figure 1 The second scan line NscanR1 of the first row, the second scan line NscanR2 of the second row, ..., the second scan line NscanRN of the Nth row, where N is a natural number greater than or equal to 1.

[0048] It should be noted that the first scanning segment and the second scanning segment in each row of scanning lines 11 are not constant. Figure 2 As shown, a switch tube 13 is provided in each row of scan lines 11 , and the switch tubes 13 in each row of scan lines 11 form a single-column array. Then, the first scan segment and the second scan segment in each row of scan lines 11 are located on both sides of the switch tube 13 .

[0049] In some implementations, such as Figure 4 As shown, three switching transistors 13 are provided in each row of scanning lines 11. The switching transistors 13 in each row of scanning lines 11 form an array of multiple rows and three columns. This switching transistor array can divide the display area 10 into two display areas 10 with a set size ratio along the first direction. The two display areas 10 can be controlled separately and independently or in a unified manner. It can be understood that, if Figure 4 As shown, the switch tubes 13 in the first column of the switch tube array can be turned off, and the switch tubes 13 in other columns can be turned on, so that the left side can be 1 / 4 of the screen and the right side can be 3 / 4 of the screen. Then, the first scanning segment and the second scanning segment are naturally obtained on both sides of the turned-off switch tube 13. The first scanning segment is connected to the first scanning line and is controlled by the first scanning driver 30, and the second scanning segment is connected to the second scanning line and is controlled by the second scanning driver 40.

[0050] In some embodiments, the row spacing of the switch tube array can be set to be equal, or can be set according to actual needs.

[0051] The first scan segment and the second scan segment are connected to different scan drivers, respectively. The first scan driver 30 and the second scan driver 40 can be configured to have the same row scan frequency or different row scan frequencies. The display panel 100 provided in the embodiment of the present application can be applied to application scenarios where the display panel is folded along the gate line direction.

[0052] The line scan frequency refers to the number of lines scanned per second, or the line refresh rate, in a display device. It indicates the speed at which the display panel 100 refreshes the image in the vertical direction. In display devices, the line scan frequency is typically expressed in Hertz (Hz). For example, a line scan frequency of 60 Hz means that 60 lines are scanned per second. This means that the display panel 100 refreshes 60 times per second, scanning row by row from the top to the bottom. The line scan frequency is very important to the performance and image quality of the display device.

[0053] The embodiment of the present application provides a control method for a display panel 100. The display panel 100 is the display panel 100 provided in the above embodiment. The control method includes a same-frequency display mode;

[0054] In the same-frequency display mode, all switches 13 are turned on, and the first scanning segment and the second scanning segment of each scanning line 11 receive scanning signals of the same frequency, that is, the first scanning signal and the second scanning signal have the same frequency.

[0055] The display panel 100 control method also includes a frequency division display mode;

[0056] In the frequency division display mode, the corresponding switch tubes 13 in any column are turned off, and the corresponding switch tubes 13 in other columns in the switch tube array are turned on. The first scanning segment and the second scanning segment of each row of scanning lines 11 receive scanning signals of different frequencies, and the frequencies of the first row scanning signal and the second row scanning signal are different.

[0057] In a specific embodiment, the switch tube that needs to be cut off is selected according to the position of the frequency division. In the following embodiments of the present application, a P-type field effect transistor is used as an example for explanation. The gate of the switch tube 13 is connected to the gate control signal through the gate control line 14.

[0058] like Figure 3The display panel 100 provided, when the left and right split frequencies are needed, the driving chip 50 outputs the gate control signal Control to the high signal (H) to the gate control line 14 connected to the gate of the switch tube 13, the switch tube 13 is cut off, and the two sides of the switch tube 13 are respectively the first scanning section and the second scanning section. The first scanning section in each row of scanning lines 11 receives the first scanning signal NscanL through the first scanning line, the second scanning section receives the second scanning signal NscanR through the second scanning line, and the first scanning signal NscanL and the second scanning signal NscanR are independent. When the left and right split screens are the same frequency, the driving chip 50 outputs the gate control signal Control to the low signal (L), the switch tube 13 is turned on, and the first scanning signal NscanL and the second scanning signal NscanR are the same frequency.

[0059] Figure 2 The control timing of the display panel 100 provided is as shown in Figure 3 As shown in Figure 2 , the frequency of the first scanning signal NscanL of the left 1 / 2 screen is 120Hz, and the frequency of the second scanning signal NscanR of the right 1 / 2 screen is 10Hz. The driving waveform diagram is shown in the figure. The 10Hz time length contains 12 120Hz frames and contains 12 8.3ms, the first 8.3ms is a write frame, and the high and low frequency parts source are jumping, and the subsequent 11 8.3ms is a holding frame, and the source maintains DC (direct current), as shown in Figure 3 , the source signal (1081-2160). The first 120Hz, the gate control signal Control of the gate control line 14 is low (L), the switch tube 13 is turned on, the first scanning signal NscanL and the second scanning signal NscanR are the same frequency, and the data signal data is written; the second to fourth frames, the gate control signal Control of the gate control line 14 is high (H), the first scanning signal NscanL and the second scanning signal NscanR are independent, the first scanning signal NscanL of the left half screen normally works, and the second scanning signal NscanR of the right half screen is low, which is in the skip state, so as to realize that the left half screen is displayed at 120Hz and the right half screen is displayed at 30Hz.

[0060] Figure 4 The control timing of the display panel 100 provided is as shown in Figure 5 In each row of scanning lines, the switch tube 13 is connected in series, and all the switch tubes 13 form a switch tube array. Alternatively, the gates of the switch tubes 13 in each column are connected, the same gate control line 14 is connected to the gate control signal, the gates of the switch tubes 13 in different columns are not connected to each other, and different control signals are connected.

[0061] When frequency division display is required, the gate control signal Control in the gate control line 14 at the corresponding position can be controlled to be high to turn off the corresponding switch tube 13, and the gate control signal Control in the gate control line 14 at other positions can be controlled to be low to turn on the other column switches 13. This is achieved by having the first scan signal NscanL and the second scan signal NscanR have different frequencies.

[0062] An embodiment of the present application further provides a display device, which includes the display panel 100 provided in the above embodiment.

[0063] By adopting the display panel 100 in the above embodiment, the display device can be divided into screens in the source line direction, and each divided screen can be controlled by a divided frequency or a same frequency.

[0064] Display devices can be: projectors, which use optical projection technology to project images onto a screen or other surfaces to produce large-size images; liquid crystal display modules, which are small-size display devices used in embedded systems or electronic devices, such as smartphones, tablets, electronic watches, etc.; virtual reality (VR) and augmented reality (AR) devices, which overlay virtual images or augmented reality content into the user's field of view through head-mounted displays or other devices.

[0065] Display devices play an important role in various application fields, including electronic devices, televisions, computers, billboards, stage performances, games, etc. They enable information to be conveyed to users in a visual manner, providing a rich visual experience.

[0066] Those skilled in the art will readily conceive of other embodiments of the present application after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.

[0067] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A display panel (100), characterized in that: The display panel (100) is provided with a display area (10) and a non-display area (20) surrounding the display area (10); the display area (10) comprises: A plurality of row scan lines (11), each row scan line (11) extending along a first direction (X), and each row scan line (11) comprising a first sub-scan line and a second sub-scan line; a plurality of data lines (12), wherein the plurality of data lines (12) extend along a second direction (Y) intersecting the first direction (X); A plurality of pixel units (60), a plurality of row scanning lines (11) and a plurality of data lines (12) are cross-arranged to define the boundaries of each pixel unit (60); the plurality of pixel units (60) are arranged in an array; The non-display area (20) includes a first scan driver (30) and a second scan driver (40), wherein the first scan driver (30) is used to output a first row scan signal to the first sub-scan line; and the second scan driver (40) is used to output a second row scan signal to the second sub-scan line. Each of the row scan lines (11) is connected in series with at least one switch tube (13), and the switch tubes (13) constitute a switch tube array; the row scan line (11) includes a first scan segment and a second scan segment, the first scan segment and the second scan segment are located on both sides of the switch tube (13), the first scan segment is connected to the first sub-scan line; and the second scan segment is connected to the second sub-scan line.

2. The display panel (100) according to claim 1, characterized in that The control end of the switch tube (13) is connected to a driving chip (50) via a gate control line (14); the driving chip (50) is used to output a control signal to control the switch tube (13) to be turned on or off.

3. The display panel (100) according to claim 2, characterized in that The driving chip (50) is arranged in the non-display area (20), or the driving chip (50) is electrically connected to the display panel (100) via a printed circuit board.

4. The display panel (100) according to claim 1, characterized in that The number of switch tubes (13) connected in series to each row scanning line (11) is the same.

5. The display panel (100) according to claim 4, characterized in that The switching tubes (13) located in the same column extend in the second direction.

6. The display panel (100) according to claim 1, characterized in that The gates of the switch tubes (13) located in the same column are connected to each other and receive the same control signal; the gates of the switch tubes (13) located in different columns are not connected to each other and receive different control signals.

7. The display panel (100) according to claim 1, characterized in that The switch tube array is in the shape of a square, a rectangle or a parallelogram.

8. A method for controlling a display panel (100), characterized in that: The display panel (100) is the display panel (100) according to any one of claims 1 to 7, and the control method includes a same-frequency display mode; In the same-frequency display mode, all the switch tubes (13) are turned on, and the frequencies of the first row scanning signal and the second row scanning signal are the same.

9. The control method of the display panel (100) according to claim 8, characterized in that: The display panel (100) control method further includes a frequency division display mode; In the frequency division display mode, the corresponding switch tubes (13) in any column are turned off, the corresponding switch tubes (13) in other columns in the switch tube array are turned on, and the first row scanning signal and the second row scanning signal have different frequencies.

10. A display device, characterized in that: The display device comprises the display panel (100) according to any one of claims 1 to 7.

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