Electronic paper display device

Abstract

The present application provides an electronic paper display device, which includes: a substrate; a first drive array layer, a first electronic paper film, and a first cover plate stacked in sequence on a first side of the substrate; a second drive array layer, a second electronic paper film, and a second cover plate stacked in sequence on a second side of the substrate opposite to the first side; wherein the data line of the first drive array layer is connected to the data line of the second drive array layer. Through the above method, the weight and cost of the display device can be reduced while realizing the function of double-sided display of electronic paper.

Description

Technical Field

[0001] The present application mainly relates to the field of display technology, and in particular to an electronic paper display device. Background Art

[0002] In recent years, with the development of artificial intelligence and computer technology, society has entered the electronic information age. Electronic paper, as a new display technology that does not hurt the eyes, has been widely used. Modern electronic paper displays have developed to be as readable and portable as printed materials.

[0003] The electronic paper display screen reflects ambient light to display patterns, and it has the effect of paper printing. Compared with traditional transmissive LCD displays, electronic paper displays do not require backlight and are easy to read. Even under the sun, the electronic paper display screen is still clearly visible. Since the electronic paper display screen does not require a backlight module, it can ensure eye health and is more eye-friendly; and it can achieve advantages in thickness and weight over traditional displays.

[0004] Based on the various advantages of electronic paper, the application scenarios of electronic paper will become more and more extensive. However, the currently known electronic paper is single-sided display, and cannot present double-sided display, which will be limited in some application fields. If double-sided display is to be achieved, the most direct way is to use two electronic paper screens, which will double the cost and weight, which will obviously limit the development of electronic paper in various application fields. Summary of the invention

[0005] The main purpose of the present application is to provide an electronic paper display device that can reduce the weight and cost of the display device while realizing the double-sided display function of the electronic paper.

[0006] To solve the above problems, the present application provides an electronic paper display device, which includes the following structure: a substrate; a first drive array layer, a first electronic paper film, and a first cover plate stacked in sequence on a first side surface of the substrate; a second drive array layer, a second electronic paper film, and a second cover plate stacked in sequence on a second side surface opposite to the first side surface of the substrate; wherein the data line of the first drive array layer is connected to the data line of the second drive array layer.

[0007] In one embodiment, a data line in the first driving array layer and a data line in the second driving array layer form a data line pair, and a through hole corresponding to each data line pair is provided on the substrate, and one data line in the data line pair is connected to another data line in the data line pair through the corresponding through hole.

[0008] In one embodiment, the electronic paper display device further includes: a first gate driving module, connected to the scan lines in the first driving array layer; a second gate driving module, connected to the scan lines in the second driving array layer; and a source driving module, connected to the data lines in the first driving array layer, or connected to the data lines in the second driving array layer.

[0009] In one embodiment, the electronic paper display device also includes a timing controller, which is connected to the first gate driving module, the second gate driving module and the source driving module, and the timing controller is configured to: control the first gate driving module to output a scan signal to the first driving array layer substrate, and / or control the second gate driving module to output a scan signal to the second driving array layer substrate; and control the source driving module to output a data signal to the first driving array layer substrate and the second driving array layer substrate.

[0010] In one embodiment, the timing controller is configured to: receive image data, determine a corresponding display mode based on the image data, the display mode includes a single-sided mode and a double-sided mode, obtain a driving strategy corresponding to the display mode, and use the driving strategy to control the first gate driving module and the second gate driving module.

[0011] In one embodiment, the timing controller is configured to: when the display mode is a single-sided mode, use a first driving strategy to control the first gate driving module and the second gate driving module, or use a second driving strategy to control the first gate driving module and the second gate driving module; wherein the first driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a high level, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a low level; wherein the second driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a low level, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a high level.

[0012] In one embodiment, the timing controller is configured to: when the display mode is the double-sided mode, obtain a driving strategy corresponding to the display mode according to whether the double-sided displayed images are the same, and use the driving strategy to control the first gate driving module and the second gate driving module.

[0013] In one embodiment, when the display mode is a double-sided mode and the images displayed on both sides are the same, a third driving strategy is adopted to control the first gate driving module and the second gate driving module; wherein the third driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a high level, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a high level.

[0014] In one embodiment, the timing controller is configured to: when the display mode is a double-sided mode and the pictures displayed on both sides are different, adopt a fourth driving strategy to control the first gate driving module and the second gate driving module; wherein the fourth driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a high level in a first phase of a scan cycle and a low level in a second phase of a scan cycle, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a low level in the first phase of a scan cycle and a high and low level in the second phase of a scan cycle.

[0015] The present application also provides a double-sided display control method, which is implemented by the electronic paper display device as described above, and the double-sided display control method includes: receiving image data, and determining the corresponding display mode according to the image data; using a timing controller to call different timing controls according to different display modes to achieve single-sided display of different panels, and the same picture display and different picture display during double-sided display.

[0016] The present application provides an electronic paper display device, which includes: a substrate; a first drive array layer, a first electronic paper film and a first cover plate stacked in sequence on a first side of the substrate; a second drive array layer, a second electronic paper film and a second cover plate stacked in sequence on a second side opposite to the first side of the substrate; wherein the data line of the first drive array layer is connected to the data line of the second drive array layer. Through the above electronic paper display device, on the basis of the traditional single-sided electronic paper, a substrate and a set of circuit driving components are used, and a layer of drive array layer array, electronic paper film and cover plate are added, and the screens displayed on both sides are connected by a data line through the through hole on the substrate, so as to realize the double-sided driving of the electronic paper screen, optimize the structure of the electronic paper display screen, enrich the display content and application scenarios, save materials, and reduce the weight and cost of the double-sided electronic paper display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0018] Figure 1 is a schematic diagram of the structure of an embodiment of an electronic paper display device provided by the present application;

[0019] Figure 2is a schematic structural diagram of a substrate of an electronic paper display device according to an embodiment of the present application;

[0020] Figure 3 This is a screen refresh flow chart of an embodiment of an electronic paper display device provided by the present application;

[0021] Figure 4 is a timing diagram of a first driving strategy during single-sided display of an embodiment of an electronic paper display device provided by the present application;

[0022] Figure 5 yes Figure 4 The timing diagram of the second driving strategy when another corresponding screen is displayed;

[0023] Figure 6 is a timing diagram of a third driving strategy when the same image is displayed on both sides of an electronic paper display device according to an embodiment of the present application;

[0024] Figure 7 is a timing diagram of a fourth driving strategy when two sides of an electronic paper display device according to an embodiment of the present application display different images;

[0025] Figure 8 It is a schematic diagram of the step flow of an embodiment of a display method provided by the present application.

[0026] Description of the accompanying drawings: 100, electronic paper display device; 10, substrate; 21, first drive array layer; 22, second drive array layer; 31, first electronic paper film; 32, second electronic paper film; 41, first cover plate; 42, second cover plate; 40, flexible circuit board; 50, drive circuit; 60, through hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be appreciated that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some but not all structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present application.

[0028] The terms "first", "second", etc. in this application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0029] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] See also Figure 1 As shown, Figure 1 Schematic diagram of the structure of an electronic paper display device according to an embodiment of the present application. Figure 1 As shown, the electronic paper display device 100 includes: a substrate 10; a first drive array layer 21, a first electronic paper film 31 and a first cover plate 41 stacked in sequence on a first side surface of the substrate; a second drive array layer 22, a second electronic paper film 32 and a second cover plate 42 stacked in sequence on a second side surface opposite to the first side surface of the substrate; wherein the data line of the first drive array layer 21 is connected to the data line of the second drive array layer 22.

[0031] The substrate 10 may be a glass substrate. In other embodiments, the electronic paper display device may be used in a flexible display scenario and may also be a plastic substrate.

[0032] Among them, TFT (Thin Film Transistor) is the most basic and important three-terminal electronic component in the semiconductor industry. It has been widely used in consumer products such as flat panel displays and radio frequency tags. Each pixel relies on TFT for switching and driving. According to the different semiconductor materials of the TFT active layer, the current mainstream TFT technology can be divided into hydrogenated amorphous silicon (a-Si:H) TFT, low-temperature polycrystalline silicon (low-temperature poly-Si, LTPS) TFT and amorphous oxide (AOS) TFT.

[0033] The substrate 10 also includes a flexible printed circuit (FPC) 40 and a driving circuit 50. The flexible printed circuit 40 is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as a substrate, also known as a soft circuit board or a flexible circuit board. It is highly favored for its excellent properties such as light weight, thin thickness, and free bending and folding. The driving circuit is a set of integrated circuit chip devices, which are used to adjust and control the phase, peak value, frequency, etc. of the potential signal on the transparent electrode, establish a driving electric field, and finally realize the information display on the screen.

[0034] Optionally, in one embodiment, the electronic paper display device 100 further includes a first gate driving module and a second gate driving module, the first gate driving module is connected to the scan lines in the first driving array layer 21, and the second gate driving module is connected to the scan lines in the second driving array layer 22; a source driving module is connected to the data lines in the first driving array layer 21, or connected to the data lines in the second driving array layer 22.

[0035] It can be understood that the electronic paper display device 100 manufactures drive array layer arrays on both sides of a glass substrate, and the drive array layer arrays on the front and back sides connect the data lines (or source lines) together through through holes, so that one drive circuit can be used to drive the data on both sides; for the drive of the scan lines (or gate lines), different gate drive modules are used to drive the front and back sides, and the scan lines are connected to two different gate drive modules. The gate drive modules are controlled by the EN signal output by the timing controller (Tcon). When the EN signal is high, the source drive module normally outputs the GOA signal to the TFT. When the EN signal is low, the source drive module outputs the VGL signal. At this time, the corresponding TFT will be closed and the picture on this side will not be refreshed.

[0036] Optionally, in one embodiment, the data lines of the first drive array layer 21 are connected to the data lines of the second drive array layer 22 through the through holes on the substrate 10. Figure 1 and Figure 2 As shown, Figure 2 yes Figure 1 The schematic diagram of the structure of the corresponding substrate and the first drive array layer. The first drive array layer 21 is connected to the second drive array layer 22 on the other side through the through hole 60 on the substrate 10.

[0037] Optionally, in one embodiment, if Figure 2As shown, a data line in the first drive array layer 21 and a data line in the second drive array layer 22 form a data line pair, and a through hole 60 corresponding to each data line pair is provided on the substrate 10, and one data line in the data line pair is connected to another data line in the data line pair through the corresponding through hole 60.

[0038] Optionally, in one embodiment, the electronic paper display device also includes a timing controller (Tcon), which is connected to the first gate driving module, the second gate driving module and the source driving module, and the timing controller is configured to: control the first gate driving module to output a scan signal to the first driving array layer substrate, and / or control the second gate driving module to output a scan signal to the second driving array layer substrate; and control the source driving module to output a data signal to the first driving array layer substrate and the second driving array layer substrate.

[0039] It can be understood that in the above-mentioned embodiment, since the data lines in the first drive array layer 21 and the second drive array layer 22 are connected, the two data lines corresponding to the front and back sides share the same data signal, so the source driver will not increase on the original basis. For example, taking 1920 pixels horizontally as an example, there are 1920*3=5760 columns of RGB sub-pixels, and one column of sub-pixels requires an average of one data line, so there are 5760 data lines. Assuming that one source driver has 960 outputs, 5760 / 960=6, so 6 source drivers are required. If different source drivers are used on both sides, 12 source drivers are required, and the present embodiment adopts the method of connecting the data lines on both sides, so only 6 source drivers are still required.

[0040] See also Figure 3 As shown, Figure 3It is a screen refresh flow chart of an embodiment of an electronic paper display device provided by the present application. The specific process is: through the input signal of the display screen, the input signal of the input signal is judged, and the screen to be displayed is selected, wherein the screen display includes three modes of displaying only on screen 1, displaying only on screen 2, and displaying on screen 1 and screen 2 at the same time. Further, displaying on screen 1 and screen 2 at the same time also includes that screen 1 and screen 2 display the same picture and different pictures. After the selection and judgment, different Timing calls are made to the screen content to be displayed through the timing controller. It is further understood that when the front and back pictures are input to Tcon, Tcon will determine whether the picture needs to be refreshed on the front or back. If only the front needs to be refreshed, Timing1 will be generated. At this time, the TFT array on the front will normally receive the gate signal and refresh the picture line by line; while the TFT array on the back receives the VGL signal, the TFT array will remain in a closed state, and the picture will remain unchanged. When the other back or both the front and back sides need to be refreshed, the process is similar, but the corresponding Timing will be different.

[0041] Optionally, in one embodiment, the timing controller is configured to: receive image data, determine a corresponding display mode based on the image data, the display mode includes a single-sided mode and a double-sided mode, obtain a driving strategy corresponding to the display mode, and use the driving strategy to control the first gate driving module and the second gate driving module.

[0042] Optionally, in one embodiment, the array gate driver (Gatedriver On Array, GOA) technology used in the gate driver module is a technology that integrates a gate driver integrated circuit (Gate Driver Integrated Circuit) on an array substrate. The GOA circuit has a plurality of cascaded GOA units, each of which has a signal output terminal, which outputs a signal under the drive of an input signal, and the signal output from the signal output terminal is simultaneously used as a gate drive signal of the same row and an input signal of the next-level GOA unit.

[0043] Optionally, in one embodiment, see Figure 4 As shown, Figure 4 is a timing diagram of a first driving strategy for single-sided display of an electronic paper display device according to an embodiment of the present application. Figure 5 As shown, Figure 5 yes Figure 4The corresponding other screen displays the timing diagram of the second driving strategy. Gout1, Gout2, Gout3...are scan signals received by the first gate driving module and the second gate driving module, EN is the first enable signal, EN' is the second enable signal, G1, G2, G3...are scan signals output by the first gate driving module, G1', G2', G3'...are scan signals output by the second gate driving module, and the timing controller is configured as follows: when the display mode is the single-sided mode, the first driving strategy is used to control the first gate driving module and the second gate driving module, or the second driving strategy is used to control the first gate driving module and the second gate driving module; wherein the first driving strategy includes: outputting the scan signal and the first enable signal to the first gate driving module, the first enable signal is a high level, and outputting the scan signal and the second enable signal to the second gate driving module, the second enable signal is a low level; wherein the second driving strategy includes: outputting the scan signal and the first enable signal to the first gate driving module, the first enable signal is a low level, and outputting the scan signal and the second enable signal to the second gate driving module, the second enable signal is a high level.

[0044] Optionally, in one embodiment, the timing controller is configured to: when the display mode is the double-sided mode, obtain a driving strategy corresponding to the display mode according to whether the double-sided displayed images are the same, and use the driving strategy to control the first gate driving module and the second gate driving module.

[0045] in, Figure 4 Corresponding to the first driving strategy, only the display screen on one side of the first driving array layer 21 is displayed. Specifically, since the first enable signal EN is at a high level, the gate signal output by the first gate driving module is consistent with the received gate signal. Since the second enable signal EN' is at a low level, the second gate driving module does not output a gate signal (i.e., it is at a low level).

[0046] in, Figure 5 Corresponding to the second driving strategy, only the display screen on one side of the second driving array layer 22 is displayed. Specifically, since the first enable signal EN is at a low level, the first gate driving module does not output a gate signal (i.e., a low level). Since the second enable signal EN' is at a high level, the gate signal output by the second gate driving module is consistent with the received gate signal.

[0047] Optionally, in one embodiment, see Figure 6 As shown, Figure 6This is a timing diagram of the third driving strategy when the same picture is displayed on both sides of an embodiment of the electronic paper display device provided by the present application. When the display mode is the double-sided mode and the pictures displayed on both sides are the same, the third driving strategy is adopted to control the first gate driving module and the second gate driving module; wherein the third driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a high level, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a high level.

[0048] in, Figure 6 Corresponding to the third driving strategy, the display images on both sides of the first driving array layer 21 and the second driving array layer 22 are displayed simultaneously and the same image is displayed. Specifically, since the first enable signal EN and the second enable signal EN' are both high level, the gate signal output by the first gate driving module and the second gate driving module is consistent with the received gate signal. Further, since the corresponding data lines on both sides are connected, when a row of pixels is scanned, the corresponding two data lines receive the same data signal, so the images displayed on both sides are the same.

[0049] Optionally, in one embodiment, see Figure 7 As shown, Figure 7 This is a timing diagram of the fourth driving strategy when the double-sided display of an embodiment of the electronic paper display device provided by the present application is different. The timing controller is configured to: when the display mode is the double-sided mode and the double-sided displayed pictures are different, the fourth driving strategy is used to control the first gate driving module and the second gate driving module; wherein the fourth driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a high level in the first stage of a scan cycle and a low level in the second stage of a scan cycle, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a low level in the first stage of a scan cycle and a high and low level in the second stage of a scan cycle.

[0050] in, Figure 6Corresponding to the third driving strategy, the display screens on both sides of the first driving array layer 21 and the second driving array layer 22 are displayed simultaneously and display different screens. Specifically, since the first enable signal EN and the second enable signal EN' are enabled in time-sharing, specifically, in the first half of a cycle, the first enable signal EN is high level, and the second enable signal EN' is low level, and in the second half of a cycle, the first enable signal EN is low level, and the second enable signal EN' is high level. Therefore, in the first half, the gate signal output by the first gate driving module is consistent with the received gate signal, that is, the first driving array layer 21 is scan-driven; in the second half, the gate signal output by the second gate driving module is consistent with the received gate signal, that is, the second driving array layer 22 is scan-driven. It can be understood that in the two stages, the source driver can output different data signals according to two different screens, so the screens displayed on both sides can be different.

[0051] The present application also provides a double-sided display control method, which is implemented by the electronic paper display device as described above, and the double-sided display control method includes: receiving image data, and determining the corresponding display mode according to the image data; using a timing controller to call different timing controls according to different display modes to achieve single-sided display of different panels, and the same picture display and different picture display during double-sided display.

[0052] See also Figure 8 , Figure 8 1 is a schematic diagram of the steps of an embodiment of a display method provided by the present application. The method specifically comprises the following steps:

[0053] Step S10: receiving image data.

[0054] Among them, the display device receives image data, and its signal is an RGB analog signal or a digital signal through digital-to-analog conversion. In the screen display, the signal usually needs to go through the process of digital-to-analog conversion, analog-to-digital conversion and scanning, and the digital signal of each pixel data is converted into RGB data of each pixel in each frame of the image. The scanning position is specified by the line and field signals, and then it is output to the screen frame by frame for display, which is a complete picture display.

[0055] Step S12: determining a corresponding display mode according to the image data, where the display mode includes a single-sided mode and a double-sided mode.

[0056] Optionally, in one embodiment, a determination is made based on the image data received as described above to confirm that the display screen corresponding to the display screen is displayed, so that the corresponding driving strategy can be used to drive the display of the screen. Specifically, the two display screens of the double-sided display electronic paper device can be controlled separately, that is, only one of the two display screens displays the screen, or the two screens display at the same time, and the screens displayed on the two screens can be the same screen or the two screens display different screens, and the screen transmission between each other is not affected by the separate output, and different driving strategies are used for different display modes to meet the display requirements.

[0057] Step S14: Obtain a driving strategy corresponding to the display mode.

[0058] Optionally, in one embodiment, if Figure 3 As shown, the input of the picture is divided into single-sided mode and double-sided mode according to the different pictures to be displayed; wherein, different driving strategies are adopted corresponding to different display modes, and the driving strategies mainly call corresponding different timing controls through the timing controller to achieve different picture display effects, control the on and off of different display screens through the corresponding enable signal switch, and control the display of the output picture through the corresponding data transmission scanning signal, that is, display as the same picture or different pictures.

[0059] Step S16: adopting a driving strategy to control the first gate driving module and the second gate driving module of the electronic paper display device.

[0060] Optionally, in one embodiment, when only the screen 1 is displayed, the first driving strategy is used to control the first gate driving module and the second gate driving module of the electronic paper display device, such as Figure 3 and Figure 4 As shown, the first driving strategy includes: outputting a scan signal and a first enable signal to a first gate driving module, the first enable signal is a high level, and outputting a scan signal and a second enable signal to a second gate driving module, the second enable signal is a low level.

[0061] Optionally, in one embodiment, when only screen 2 is displayed, as shown in FIG. Figure 3 and Figure 5 As shown, a second driving strategy is correspondingly adopted to control the first gate driving module and the second gate driving module of the electronic paper display device, wherein the second driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a low level, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a high level.

[0062] Optionally, in one embodiment, when screen 1 and screen 2 are used for simultaneous display and the displayed pictures are the same, a third driving strategy is used, such as Figure 3 and Figure 6 As shown, the third driving strategy includes: outputting a scan signal and a first enable signal to a first gate driving module, the first enable signal is a high level, and outputting a scan signal and a second enable signal to a second gate driving module, the second enable signal is a high level.

[0063] Optionally, in one embodiment, when screen 1 and screen 2 are used for simultaneous display and the displayed images are different, a fourth driving strategy is used, such as Figure 3 and Figure 7 As shown, the fourth driving strategy includes: outputting a scan signal and a first enable signal to a first gate driving module, the first enable signal is a high level in a first phase of a scan cycle and a low level in a second phase of a scan cycle, and outputting a scan signal and a second enable signal to a second gate driving module, the second enable signal is a low level in a first phase of a scan cycle and a high and low level in a second phase of a scan cycle.

[0064] The present application provides an electronic paper display device, which includes the following structure: a substrate; a first drive array layer, a first electronic paper film and a first cover plate stacked in sequence on a first side of the substrate; a second drive array layer, a second electronic paper film and a second cover plate stacked in sequence on a second side opposite to the first side of the substrate; wherein the data line of the first drive array layer is connected to the data line of the second drive array layer. Through the above electronic paper display device, on the basis of the traditional single-sided electronic paper, a substrate and a set of circuit driving components are used, and a layer of TFT array, electronic paper film and cover plate are added, and the screens displayed on both sides are connected by a data line through the through hole on the substrate, so as to realize the double-sided drive of the electronic paper screen, optimize the structure of the electronic paper display screen, enrich the display content and application scenarios, save materials, and reduce the weight and cost of the double-sided electronic paper display screen.

[0065] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An electronic paper display device, characterized in that: The electronic paper display device comprises: substrate; A first driving array layer, a first electronic paper film and a first cover plate are sequentially stacked on a first side surface of the substrate; A second driving array layer, a second electronic paper film, and a second cover plate are sequentially stacked on a second side surface of the substrate opposite to the first side surface; A first gate driving module, connected to the scan lines in the first driving array layer; A second gate driving module, connected to the scan lines in the second driving array layer; A source driving module connected to the data lines in the first driving array layer, or connected to the data lines in the second driving array layer; A timing controller is connected to the first gate driving module, the second gate driving module and the source driving module, and the timing controller is configured to: control the first gate driving module to output a scan signal to the first driving array layer substrate, and / or control the second gate driving module to output a scan signal to the second driving array layer substrate; and control the source driving module to output a data signal to the first driving array layer substrate and the second driving array layer substrate; receive image data, determine a corresponding display mode according to the image data, the display mode includes a single-sided mode and a double-sided mode, obtain a driving strategy corresponding to the display mode, and use the driving strategy to control the first gate driving module and the second gate driving module; Wherein, the substrate is provided with a plurality of through holes, a data line of the first drive array layer is connected to a corresponding data line of the second drive array layer through a corresponding through hole; a data line in the first drive array layer and a data line in the second drive array layer constitute a data line pair, the substrate is provided with through holes corresponding to each of the data line pairs, and one data line in the data line pair is connected to another data line in the data line pair through the corresponding through hole; Wherein, the timing controller is further configured as: When the display mode is a single-sided mode, a first driving strategy is adopted to control the first gate driving module and the second gate driving module, or a second driving strategy is adopted to control the first gate driving module and the second gate driving module; wherein the first driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a high level, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a low level; wherein the second driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a low level, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a high level; When the display mode is a double-sided mode, a driving strategy corresponding to the display mode is obtained according to whether the pictures displayed on both sides are the same, and the first gate driving module and the second gate driving module are controlled by using the driving strategy; When the display mode is a double-sided mode and the images displayed on both sides are the same, a third driving strategy is adopted to control the first gate driving module and the second gate driving module; wherein the third driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a high level, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a high level; When the display mode is a double-sided mode and the images displayed on both sides are different, a fourth driving strategy is adopted to control the first gate driving module and the second gate driving module; wherein the fourth driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a high level in a first stage of a scan cycle and a low level in a second stage of a scan cycle, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a low level in a first stage of a scan cycle and a high and low level in a second stage of a scan cycle.

2. A display method, applied to the electronic paper display device according to claim 1, characterized in that: The display method comprises: receiving image data; Determine a corresponding display mode according to the image data, the display mode including a single-sided mode and a double-sided mode; Acquire a driving strategy corresponding to the display mode; The driving strategy is adopted to control the first gate driving module and the second gate driving module of the electronic paper display device, wherein when the display mode is the single-sided mode, the first driving strategy or the second driving strategy is adopted to control the first gate driving module and the second gate driving module; wherein the first driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a high level, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a low level; wherein the second driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a low level, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a high level; when the display mode is the double-sided mode, the driving strategy corresponding to the display mode is obtained according to whether the double-sided displayed pictures are the same, and the driving strategy is adopted to control the first gate driving module and the second gate driving module; When the display mode is a double-sided mode and the pictures displayed on both sides are the same, a third driving strategy is adopted to control the first gate driving module and the second gate driving module; wherein the third driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a high level, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a high level; when the display mode is a double-sided mode and the pictures displayed on both sides are different, a fourth driving strategy is adopted to control the first gate driving module and the second gate driving module; wherein the fourth driving strategy includes: outputting a scan signal and a first enable signal to the first gate driving module, the first enable signal is a high level in a first stage of a scan cycle and a low level in a second stage of a scan cycle, and outputting a scan signal and a second enable signal to the second gate driving module, the second enable signal is a low level in a first stage of a scan cycle and a high and low level in a second stage of a scan cycle.

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