Display panel and display driving method thereof, display equipment and storage medium

Abstract

The invention discloses a display panel and a display driving method thereof, a display device and a storage medium, and relates to the technical field of display, the panel comprises a light-emitting unit array arranged between a first backboard and a second backboard, each light-emitting unit in the light-emitting unit array comprises a first sub-pixel and a second sub-pixel which are the same in color, first transparent electrodes are arranged on the sides, close to the first back plate, of the first sub-pixels and the second sub-pixels, reflection electrodes are arranged on the sides, close to the second back plate, of the first sub-pixels, and second transparent electrodes penetrating through the second back plate are arranged on the sides, close to the second back plate, of the second sub-pixels; the driving control module comprises a first driving part electrically connected with the first sub-pixel and a second driving part electrically connected with the second sub-pixel, and the driving control module is configured to drive a corresponding display driving part (namely, at least one of the first driving part and the second driving part) to execute pixel display operation according to the display requirement of a user; the transparent display performance of the display panel is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel, a display driving method thereof, a display device and a storage medium. BACKGROUND

[0002] With the continuous development of display technology, transparent display technology has become an important development direction in the field of new display, and users have higher requirements for double-sided display of display panels.

[0003] However, most of the traditional transparent display technology is designed for one-way display or low transparency, and cannot realize high transparency and bidirectional dynamic display function at the same time, especially in the scene of automobile window, commercial showcase and other scenes that need bidirectional interaction. And the traditional transparent display technology lacks intelligent multi-mode driving scheme, which leads to the inability to flexibly switch between single-sided display, double-sided same picture or double-sided different picture display modes according to application scenarios.

[0004] Therefore, how to improve the transparent display performance of the display panel is a technical problem to be solved at present. SUMMARY

[0005] The main purpose of the present application is to provide a display panel, a display driving method thereof, a display device and a storage medium, which aims to improve the transparent display performance of the display panel.

[0006] In order to achieve the above purpose, the present application provides a display panel, which comprises:

[0007] A first back plate and a second back plate;

[0008] An array of light emitting units arranged between the first back plate and the second back plate, each light emitting unit in the array of light emitting units comprising a first sub-pixel and a second sub-pixel of the same color, the first sub-pixel and the second sub-pixel being provided with a first transparent electrode on the side close to the first back plate, the first sub-pixel being provided with a reflective electrode on the side close to the second back plate, and the second sub-pixel being provided with a second transparent electrode penetrating through the second back plate on the side close to the second back plate;

[0009] A drive control module, the drive control module comprising a first drive element electrically connected to the first sub-pixel and a second drive element electrically connected to the second sub-pixel, the drive control module being configured to drive the corresponding display driving element to perform pixel display operation according to user display requirements, the display driving element being at least one of the first drive element and the second drive element.

[0010] In an embodiment, the first drive element comprises a first thin film transistor, a second thin film transistor and a first capacitor.

[0011] The first end of the first thin film transistor is electrically connected with a first scan line, the gate end of the first thin film transistor is electrically connected with a signal line, the second end of the first thin film transistor is electrically connected with the first end of the first capacitor and the gate end of the second thin film transistor respectively, and the second end of the first capacitor and the first end of the second thin film transistor are electrically connected with a first potential end respectively;

[0012] The second end of the second thin film transistor is electrically connected with the side of the first sub-pixel close to the first transparent electrode, and the side of the first sub-pixel close to the reflective electrode is electrically connected with a second potential end.

[0013] In an embodiment, the second driving member includes a third thin film transistor, a fourth thin film transistor and a second capacitor.

[0014] The first end of the third thin film transistor is electrically connected with a second scan line, the gate end of the third thin film transistor is electrically connected with the signal line, the second end of the third thin film transistor is electrically connected with the first end of the second capacitor and the gate end of the fourth thin film transistor respectively, the first end of the fourth thin film transistor is electrically connected with the first potential end, the second end of the fourth thin film transistor and the second end of the second capacitor are electrically connected with the side of the second sub-pixel close to the first transparent electrode and the side of the second sub-pixel close to the second transparent electrode respectively, and the side of the second sub-pixel close to the second transparent electrode is electrically connected with the second potential end.

[0015] In addition, to achieve the above object, the present application also provides a display driving method, which is applied to any one of the display panels, and the display driving method includes:

[0016] The display driving method further includes:

[0017] The display driving method further includes:

[0018] In an embodiment, the step of driving the corresponding display driving member to perform the pixel display operation according to the user display requirement includes:

[0019] When the user display requirement is the single-face display mode, it is determined that the display driving member is the first driving member, and the first driving member is enabled to drive the first sub-pixel to perform the single-face display operation according to the first scan signal of the first scan line.

[0020] When the user display requirement is the double-side same display mode, it is determined that the display driver is the second driver, and the second driver is enabled to drive the second sub-pixel according to the second scanning signal of the second scanning line to perform the double-side same display operation.

[0021] In an embodiment, the step of enabling the first driver to drive the first sub-pixel according to the first scanning signal of the first scanning line to perform the single-side display operation comprises:

[0022] The first driver is enabled to reflect the light emitted by the first sub-pixel to the first transparent electrode through the reflecting electrode under the driving of the first scanning signal provided by the first scanning line, so that the first transparent electrode projects the light emitted by the first sub-pixel to the first back plate.

[0023] In an embodiment, the step of enabling the second driver to drive the second sub-pixel according to the second scanning signal of the second scanning line to perform the double-side same display operation comprises:

[0024] The second driver is enabled to project the light emitted by the second sub-pixel to the second back plate through the second transparent electrode at the same time when the light emitted by the second sub-pixel is projected to the first back plate through the first transparent electrode under the driving of the second scanning signal provided by the second scanning line.

[0025] In an embodiment, the step of driving the corresponding display driver to perform the pixel display operation according to the user display requirement comprises:

[0026] When the user display requirement is the double-side different display mode, it is determined that the display driver is the first driver and the second driver;

[0027] If the double-side different display mode is the front side brightness enhancement mode, the first driver is enabled to drive the first sub-pixel according to the first scanning signal of the first scanning line to perform the single-side display operation, and the second driver is enabled to drive the second sub-pixel according to the second scanning signal of the second scanning line to perform the double-side same display operation at the same time.

[0028] If the double-side different display mode is the front and back side different picture display mode, the first scanning line is enabled to provide the second scanning signal to drive the second sub-pixel in the next time sequence cycle after the current time sequence cycle while the first scanning line is enabled to provide the first scanning signal to drive the first sub-pixel in the current time sequence cycle.

[0029] In addition, to achieve the above object, the application further provides a display device, which comprises the display panel.

[0030] Or the memory, the processor and the display driver stored on the memory and executable on the processor, the processor executes the display driver to realize the steps of the display driving method of any one of the above.

[0031] In addition, to achieve the above object, the present application also provides a storage medium, the storage medium is a computer readable storage medium, the computer readable storage medium stores a display driver, the display driver is executed by the processor to realize the steps of the display driving method of any one of the above.

[0032] In summary, the display panel provided by the present application integrates first sub-pixels and second sub-pixels with the same color but separated optical paths in each light-emitting unit, wherein the light emitted by the first sub-pixels is reflected by the reflective electrode to the first transparent electrode, so as to realize single-side display enhancement of the display panel only in the direction of the first transparent electrode towards the first back plate, and the light emitted by the second sub-pixels can pass through the first transparent electrode and the second transparent electrode towards the first back plate and the second back plate, respectively, to realize bidirectional balanced transmission of the display panel, thereby ensuring the uniformity of the double-sided display of the display panel. Next, the driving module in the display panel is integrated with independent first driving elements and second driving elements to drive the first sub-pixels and the second sub-pixels, respectively, so as to realize the compatibility of high transparency and dynamic bidirectional display, so that the driving module can flexibly switch the corresponding display driving element (at least one of the first driving element and the second driving element) to perform pixel display operation representing a single-sided display mode, a double-sided same display mode or a double-sided different display mode, so that the display panel can flexibly switch the display mode according to the actual application scenario, thereby significantly improving the environmental adaptability and transparent display performance of the display panel while maintaining high transparency, effectively solving the technical defects that the traditional transparent display technology cannot balance the light transmittance and multi-mode dynamic display, and significantly improving the transparent display performance of the display panel. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0035] Figure 1 is a structural block diagram of the first embodiment of the display panel of the present application;

[0036] Figure 2 is a schematic diagram of a transparent double-sided display structure related to an embodiment of the present application;

[0037] Figure 3 is a schematic diagram of a monochrome pixel structure related to an embodiment of the present application;

[0038] Figure 4 is a schematic diagram of a drive control module circuit related to an embodiment of the present application;

[0039] Figure 5 is a single-sided display scene diagram related to an embodiment of the present application;

[0040] Figure 6 is a double-sided same display scene diagram related to an embodiment of the present application;

[0041] Figure 7 is a front brightness enhanced display scene diagram related to an embodiment of the present application;

[0042] Figure 8 is a front and back different picture display scene diagram related to an embodiment of the present application;

[0043] Figure 9 is another display panel structure diagram related to an embodiment of the present application;

[0044] Figure 10 is a schematic diagram of a hemispherical pixel structure related to an embodiment of the present application;

[0045] Figure 11 is another single-sided display scene diagram related to an embodiment of the present application;

[0046] Figure 12 is another double-sided same display scene diagram related to an embodiment of the present application;

[0047] Figure 13 is a front and back different picture display scene diagram related to an embodiment of the present application;

[0048] Figure 14 is a schematic diagram of a display device related to an embodiment of the present application.

[0049] BRIEF DESCRIPTION OF THE DRAWINGS

[0050] 100, first back plate; 11, first transparent electrode; 200, second back plate; 21, second transparent electrode; 22, reflective electrode; 300, light emitting unit array; Li, light emitting unit; 31, first sub-pixel; 32, second sub-pixel; 400, drive control module; 41, first drive member; 42, second drive member; S1, signal line; G1, first scan line; G2, second scan line; VDD, first potential terminal; VSS, second potential terminal; T1, first thin film transistor; T2, second thin film transistor; T3, third thin film transistor; T4, fourth thin film transistor; C1, first capacitor; C2, second capacitor.

[0051] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments in combination with the accompanying drawings. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0053] It should be noted that if the present application has a directional indication (such as up, down, left, right, front, back, etc.) in the embodiments, the directional indication is only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), if the certain posture changes, the directional indication also changes accordingly.

[0054] In addition, if the present application has a description of "first", "second" and the like in the embodiments, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0055] The exemplary embodiments will be described in detail hereinbelow with reference to the accompanying drawings. The following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application.

[0056] With the continuous development of display technology, transparent display technology has become an important development direction in the field of new display. Users have higher requirements for double-sided display of display panels.

[0057] However, most of the conventional transparent display technology is designed for one-way display or low transparency, and cannot realize high transmittance and bidirectional dynamic display function at the same time, especially in the scene of automobile window, commercial showcase and other scenes requiring bidirectional interaction. In addition, the conventional transparent display technology lacks intelligent multi-mode driving scheme, resulting in that the display panel cannot be flexibly switched between single-sided display, double-sided same picture and double-sided different picture display modes according to the application scene.

[0058] That is, how to improve the double-sided display performance of the display panel is a technical problem to be solved at present.

[0059] Therefore, in order to solve the technical defects of the conventional transparent display technology that cannot balance the transmittance and multi-mode dynamic display to improve the double-sided display performance of the display panel, the present application provides a display panel, a display driving method thereof, a display device and a storage medium.

[0060] The present application provides a display panel, referring to Figure 1 as shown, Figure 1 is a structural block diagram of the first embodiment of the display panel of the present application. The display panel comprises:

[0061] The first back plate 100 and the second back plate 200; the light emitting unit array 300 arranged between the first back plate 100 and the second back plate 200, each light emitting unit Li in the light emitting unit array 300 comprising a first sub-pixel 31 and a second sub-pixel 32 with the same color, the first sub-pixel 31 and the second sub-pixel 32 being commonly provided with a first transparent electrode 11 on the side close to the first back plate 100, the first sub-pixel 31 being provided with a reflective electrode 22 on the side close to the second back plate 200, and the second sub-pixel 32 being provided with a second transparent electrode 21 penetrating through the second back plate 200 on the side close to the second back plate 200.

[0062] In this embodiment, a light-emitting unit array 300 is disposed between the first backplate 100 and the second backplate 200. Each light-emitting unit Li in the light-emitting unit array 300 includes a first sub-pixel 31 and a second sub-pixel 32 of the same color, and the first sub-pixel 31 and the second sub-pixel 32 are provided with a shared first transparent electrode 11 on the side closer to the first backplate 100. Next, a reflective electrode 22 is disposed on the side of the first sub-pixel 31 closer to the second backplate 200, so that the light emitted by the first sub-pixel 31 can be reflected back to the first backplate 100 through the reflective electrode 22, so as to achieve high brightness of the display panel when only the first sub-pixel 31 emits light. The display panel features a unidirectional display, and a second transparent electrode 21 penetrating the second back plate 200 is provided on the side of the second sub-pixel 32 near the second back plate 200. This allows the light emitted by the second sub-pixel 32 to pass through the first back plate 100 and the second back plate 200 respectively via the transparent electrodes on both sides (i.e., the first transparent electrode 11 and the second transparent electrode 21). This enables bidirectional transparent display of the display panel when the second sub-pixel 32 emits light only. As a result, the display panel can flexibly switch between high-brightness unidirectional display, bidirectional transparent display, and a combination of high-brightness unidirectional display and bidirectional transparent display according to the user's display needs, thereby improving the transparent display performance of the display panel.

[0063] It should be noted that each light-emitting unit Li has a different color from the next light-emitting unit Li, and the first sub-pixel 31 and the second sub-pixel 32 of the same light-emitting unit Li can be used. Figure 2 The red sub-pixels R_1 and R_2, green sub-pixels G_1 and G_2, or blue sub-pixels B_1 and B_2 are shown.

[0064] The first backplate 100 and the second backplate 200 can be understood as transparent glass substrates or transparent films (such as PET, Polyethylene Terephthalate). A transparent protective film is provided on the side of the first backplate 100 away from the first transparent electrode 11, and a transparent protective film is provided on the side of the second backplate 200 away from reflection. Figure 2 The transparent protective film, represented by the diagonal rectangle shown, forms a physical protective layer. Next, the gap areas in the light-emitting unit array 300, represented by the horizontal shaded area, are filled with a high-refractive-index transparent encapsulating adhesive to form a transparent encapsulating layer, thereby significantly improving the light transmission efficiency of the first sub-pixel 31 and the second sub-pixel 32 when they emit light normally.

[0065] Additionally, it should be noted that since the first sub-pixel 31 and the second sub-pixel 32 are monochrome pixels of the same color, the structure of this monochrome pixel is as follows: Figure 3As shown, an N-type electrode (cathode doped with donor impurity silicon Si), an N-GaN layer (gallium nitride n-type semiconductor layer), a light-emitting layer, a P-GaN layer (gallium nitride p-type semiconductor layer), and a P-type electrode (anode doped with acceptor impurity magnesium Mg) are sequentially stacked to form a stacked structure. Insulating protective layers are respectively disposed on both sides of the stacked structure, and the N-type electrode is disposed on... Figures 1-2 Below the first transparent electrode 11 shown, and on the side near the P electrode, a sapphire substrate is fixed. When this monochrome pixel is the first sub-pixel 31 (i.e. Figure 2 When the red sub-pixel R_1, green sub-pixel G_1, or blue sub-pixel B_1 is shown, the sapphire substrate is set on Figures 1-2 On the middle reflective electrode 22; and when this monochrome pixel is the first sub-pixel 31 (i.e. Figure 2 When the red sub-pixel R_2, green sub-pixel G_2, or blue sub-pixel B_2 are shown, the sapphire substrate is set on Figures 1-2 The light-emitting layer is located on the second transparent electrode 21; wherein the light-emitting layer can be a red light-emitting layer, a green light-emitting layer, or a blue light-emitting layer.

[0066] A drive control module 400 includes a first drive unit 41 electrically connected to the first sub-pixel 31 and a second drive unit 42 electrically connected to the second sub-pixel 32. The drive control module 400 is configured to drive the corresponding display drive unit to perform pixel display operations according to the user's display requirements. The display drive unit is at least one of the first drive unit 41 and the second drive unit 42.

[0067] In this embodiment, the present application provides a drive control module 400 integrating a first drive element 41 and a second drive element 42, and electrically connects the first drive element 41 to the first sub-pixel 31 and the second drive element 42 to the second sub-pixel 32. This allows the first drive element 41 and the second drive element 42 to independently drive the first sub-pixel 31 and the second sub-pixel 32 to emit light, respectively. This enables the drive control module 400 to flexibly select to drive the first drive element 41, the second drive element 42, or both simultaneously according to the user's display requirements, realizing flexible switching of display drive modes. This significantly improves the environmental adaptability and transparent display performance of the display panel while maintaining high transparency, effectively solving the technical defects of traditional transparent display technology that cannot balance light transmittance and multi-mode dynamic display, and significantly improving the transparent display performance of the display panel.

[0068] Furthermore, in some feasible embodiments, reference is made to Figure 4The first driving member 41 comprises a first thin film transistor T1, a second thin film transistor T2 and a first capacitor C1. The first end of the first thin film transistor T1 is electrically connected to the first scanning line G1, the gate end of the first thin film transistor T1 is electrically connected to the signal line S1, the second end of the first thin film transistor T1 is electrically connected to the first end of the first capacitor C1 and the gate end of the second thin film transistor T2 respectively, the second end of the first capacitor C1 and the first end of the second thin film transistor T2 are electrically connected to the first potential end VDD respectively. The second end of the second thin film transistor T2 is electrically connected to the side of the first sub-pixel 31 close to the first transparent electrode 11, and the side of the first sub-pixel 31 close to the reflecting electrode 22 is electrically connected to the second potential end VSS.

[0069] In the embodiment, referring to Figure 4 , the first driving member 41 adopts the cooperative architecture of the double thin film transistors (i.e. the first thin film transistor T1 and the second thin film transistor T2) and the first capacitor C1 to drive the first sub-pixel 31 to realize the high-brightness one-way display. Specifically, the conducting signal provided by the signal line S1 turns on the first thin film transistor T1, so that the first scanning signal provided when the first scanning line G1 is activated can charge the first capacitor C1 through the first thin film transistor T1, and the first scanning signal is applied to the gate end of the second thin film transistor T2, so that the second thin film transistor T2 is turned on under the driving of the first scanning signal to provide the power supply voltage of the first potential end VDD to the first sub-pixel 31 for light-emitting display. Next, the light emitted by the first sub-pixel 31 is reflected to the first transparent electrode 11 through the reflecting electrode 22, so as to be emitted towards the direction of the first back plate 100 through the first transparent electrode 11, thereby realizing the high-brightness one-way display of the display panel only in the case that the first sub-pixel 31 emits light.

[0070] It should be noted that the potential of the first potential end VDD is higher than that of the second potential end VSS, and the first potential end VDD can be used to provide the power supply voltage.

[0071] The side of the first sub-pixel 31 close to the reflecting electrode 22 can be fixedly provided with Figure 3 the P pole shown, or can be fixedly provided with Figure 3 the N pole shown; specifically, when the side of the first sub-pixel 31 close to the reflecting electrode 22 can be fixedly provided with Figure 3 the P pole shown, the side of the first sub-pixel 31 close to the first transparent electrode 11 is provided with Figure 3 the N pole shown; when the side of the first sub-pixel 31 close to the reflecting electrode 22 can be fixedly provided with Figure 3 the N pole shown, the side of the first sub-pixel 31 close to the first transparent electrode 11 is provided with Figure 3 the P pole shown.

[0072] Further, in another possible implementation, the second driving member 42 comprises a third thin film transistor T3, a fourth thin film transistor T4 and a second capacitor C2; the first end of the third thin film transistor T3 is electrically connected to the second scan line G2, the gate end of the third thin film transistor T3 is electrically connected to the signal line S1, the second end of the third thin film transistor T3 is electrically connected to the first end of the second capacitor C2 and the gate end of the fourth thin film transistor T4 respectively, the first end of the fourth thin film transistor T4 is electrically connected to the first potential end VDD, the second end of the fourth thin film transistor T4 and the second end of the second capacitor C2 are electrically connected to the side of the second sub-pixel 32 close to the first transparent electrode 11 respectively, and the side of the second sub-pixel 32 close to the second transparent electrode 21 is electrically connected to the second potential end VSS.

[0073] In the present embodiment, the second driving member 42 is configured to drive the second sub-pixel 32 to realize bidirectional transparent display by adopting the cooperative architecture of the double thin film transistors (i.e. the third thin film transistor T3 and the fourth thin film transistor T4) and the second capacitor C2. Specifically, the conductive signal provided by the signal line S1 turns on the third thin film transistor T3, so that the second scan signal provided when the second scan line G2 is activated can charge the second capacitor C2 through the third thin film transistor T3, and the second scan signal is applied to the gate end of the fourth thin film transistor T4, so that the fourth thin film transistor T4 is turned on under the drive of the second scan signal to provide the power supply voltage of the first potential end VDD to the second sub-pixel 32 for light emitting display, and then the light emitted by the second sub-pixel 32 can penetrate the first back plate 100 and the second back plate 200 through the transparent electrodes (i.e. the first transparent electrode 11 and the second transparent electrode 21) on the two sides respectively, so as to realize bidirectional transparent display of the display panel only in the case that the second sub-pixel 32 emits light.

[0074] It should be noted that the side of the second sub-pixel 32 close to the first transparent electrode 11 can be fixedly provided with the P pole as shown in FIG. 11, or can be fixedly provided with the N pole as shown in FIG. 12. Figure 3 It should be noted that the side of the second sub-pixel 32 close to the first transparent electrode 11 can be fixedly provided with the P pole as shown in FIG. 11, or can be fixedly provided with the N pole as shown in FIG. 12. Figure 3 It should be noted that the side of the second sub-pixel 32 close to the first transparent electrode 11 can be fixedly provided with the P pole as shown in FIG. 11, or can be fixedly provided with the N pole as shown in FIG. 12. Figure 3 It should be noted that the side of the second sub-pixel 32 close to the first transparent electrode 11 can be fixedly provided with the P pole as shown in FIG. 11, or can be fixedly provided with the N pole as shown in FIG. 12. Figure 3 It should be noted that the side of the second sub-pixel 32 close to the first transparent electrode 11 can be fixedly provided with the P pole as shown in FIG. 11, or can be fixedly provided with the N pole as shown in FIG. 12. Figure 3 It should be noted that the side of the second sub-pixel 32 close to the first transparent electrode 11 can be fixedly provided with the P pole as shown in FIG. 11, or can be fixedly provided with the N pole as shown in FIG. 12. Figure 3 It should be noted that the side of the second sub-pixel 32 close to the first transparent electrode 11 can be fixedly provided with the P pole as shown in FIG. 11, or can be fixedly provided with the N pole as shown in FIG. 12.

[0075] In summary, the display panel provided in the application integrates first sub-pixels 31 and second sub-pixels 32 with the same color but separated optical paths in each light-emitting unit Li, wherein the light emitted by the first sub-pixels 31 is reflected by the reflective electrode 22 to the first transparent electrode 11, so as to realize single-side display enhancement of the display panel in the direction of the first transparent electrode 11 towards the first back plate 100, and the light emitted by the second sub-pixels 32 can pass through the first transparent electrode 11 and the second transparent electrode 21 towards the first back plate 100 and the second back plate 200, respectively, to realize bidirectional balanced transmission of the display panel, thereby ensuring the uniformity of the double-sided display of the display panel. Next, the driving module in the display panel is also integrated with independent first driving element 41 and second driving element 42 for driving the first sub-pixels 31 and the second sub-pixels 32, respectively, so as to realize the compatibility of high transparency and dynamic bidirectional display, so that the driving module can flexibly switch the corresponding display driving element (at least one of the first driving element 41 and the second driving element 42) to perform pixel display operation representing the single-sided display mode, the double-sided same display mode or the double-sided different display mode, so that the display panel can flexibly switch the display mode according to the actual application scenario, thereby significantly improving the environmental adaptability and transparent display performance of the display panel while maintaining high transparency, effectively solving the technical defects that the traditional transparent display technology cannot balance the light transmittance and multi-mode dynamic display, and significantly improving the transparent display performance of the display panel.

[0076] Further, based on the first embodiment of the display panel of the application, a second embodiment of the display driving method of the application is provided.

[0077] The display driving method of the application is applied to any one of the display panels described above, and is executed by a display device applied to the display panel. The display driving method of the application comprises the following implementation steps S10 to S20.

[0078] Step S10: obtaining a user display requirement by the driving control module 400, the user display requirement being any one of a single-sided display mode, a double-sided same display mode and a double-sided different display mode.

[0079] In this embodiment, the user display requirement is obtained by the driving control module 400, which can flexibly identify the diversified display requirements of the user, including different display modes such as the single-sided display mode, the double-sided same display mode or the double-sided different display mode, thereby providing accurate judgment basis for the selection of subsequent display driving elements.

[0080] Step S20: driving the corresponding display driving element to perform pixel display operation according to the user display requirement, the display driving element being at least one of the first driving element 41 and the second driving element 42.

[0081] In the embodiment, the pixel display operation is driven by the corresponding display driver according to the user display requirement, the first driver 41, the second driver 42 or the combination of the two (i.e. the first driver 41 and the second driver 42) is dynamically selected to ensure the picture output effect under different display requirements, whether it is a single-sided display mode, a double-sided same display mode or a double-sided different display mode, high-quality display performance can be achieved through modularized driving control, thereby significantly improving the transparent display performance of the display panel.

[0082] Further, in some possible embodiments, the step S20 of driving the corresponding display driver to perform the pixel display operation according to the user display requirement can further include the following steps S201 to S202.

[0083] The step S201 of determining the display driver as the first driver 41 when the user display requirement is the single-sided display mode and enabling the first driver 41 to drive the first sub-pixel 31 to perform the single-sided display operation according to the first scanning signal of the first scanning line G1.

[0084] In the embodiment, when the user display requirement is the single-sided display mode, the display driver is determined as the first driver 41; then, the integrated double thin film transistors (i.e. the first thin film transistor T1 and the second thin film transistor T2) and the first capacitor C1 are used to drive the first sub-pixel 31 to realize high-brightness one-way display in the single-sided display mode under the action of the first scanning signal provided by the first scanning line G1.

[0085] The step S202 of determining the display driver as the second driver 42 when the user display requirement is the double-sided same display mode and enabling the second driver 42 to drive the second sub-pixel 32 to perform the double-sided same display operation according to the second scanning signal of the second scanning line G2.

[0086] In the embodiment, when the user display requirement is the double-sided same display mode, the display driver is determined as the second driver 42; then, the integrated double thin film transistors (i.e. the third thin film transistor T3 and the fourth thin film transistor T4) and the second capacitor C2 are used to drive the second sub-pixel 32 to realize bidirectional transparent display in the double-sided same display mode under the action of the second scanning signal provided by the second scanning line G2.

[0087] Further, in some possible embodiments, the step S201 of enabling the first driver 41 to drive the first sub-pixel 31 to perform the single-sided display operation according to the first scanning signal of the first scanning line G1 can further include the following step S2011.

[0088] Step S2011: enabling the first driver 41 to reflect the light emitted by the first sub-pixel 31 through the reflective electrode 22 to the first transparent electrode 11 under the driving of the first scanning signal provided by the first scanning line G1, so that the first transparent electrode 11 projects the light emitted by the first sub-pixel 31 to the first back plate 100.

[0089] In the embodiment, referring to Figures 4-5 When the first scanning line G1 provides the first scanning signal in the signal pulse waveform shown in (a) of Figure 5 , the first scanning signal can charge the first capacitor C1 through the on signal of the first thin film transistor T1, and the first scanning signal is applied to the gate terminal of the second thin film transistor T2, so that the second thin film transistor T2 is turned on under the driving of the first scanning signal to provide the power supply voltage of the first potential terminal VDD to the first sub-pixel 31 for light emitting display, and then the light emitted by the first sub-pixel 31 is reflected through the reflective electrode 22 to the first transparent electrode 11, so as to be emitted through the first transparent electrode 11 towards the direction of the first back plate 100, thereby realizing the high-brightness one-way display of the display panel as Figure 5 shown in (b) only in the case of light emission of the first sub-pixel 31.

[0090] Further, in other feasible embodiments, the above-mentioned step S202: enabling the second driver 42 to drive the second sub-pixel 32 to perform the double-sided same display operation according to the second scanning signal of the second scanning line G2, can further include the following implementation step S2021.

[0091] Step S2021: enabling the second driver 42 to project the light emitted by the second sub-pixel 32 to the first back plate 100 through the first transparent electrode 11 under the driving of the second scanning signal provided by the second scanning line G2, and synchronously project the light emitted by the second sub-pixel 32 to the second back plate 200 through the second transparent electrode 21.

[0092] In specific embodiments, referring to Figure 4 and Figure 6 When the second scanning line G2 provides the second scanning signal in the signal pulse waveform shown in (a) of Figure 6The third thin film transistor T3 is configured to charge the second capacitor C2 when the second scanning signal of the signal pulse waveform shown in (a) is applied to the gate terminal of the third thin film transistor T3, so that the second scanning signal can be turned on by the conductive signal of the signal line S1, and the second scanning signal is applied to the gate terminal of the fourth thin film transistor T4, so that the fourth thin film transistor T4 is turned on under the driving of the second scanning signal to provide the power supply voltage of the first potential terminal VDD to the first sub-pixel 31 for light-emitting display. Next, the light emitted by the second sub-pixel 32 penetrates the first back plate 100 and the second back plate 200 through the transparent electrodes (i.e., the first transparent electrode 11 and the second transparent electrode 21) on both sides, so as to realize the display panel as shown in Figure 6 The bidirectional transparent display shown in (b).

[0093] Further, in some possible embodiments, the step S20 of driving the corresponding display driving element to perform the pixel display operation according to the user display requirement can further include the following implementation steps A10 to A30.

[0094] The step A10 is to determine that the display driving element is the first driving element 41 and the second driving element 42 when the user display requirement is the double-face different display mode.

[0095] In the embodiment, when the user display requirement is the double-face different display mode, the display driving element can be accurately determined as the first driving element 41 and the second driving element 42, so as to provide an accurate and reliable display driving element for the subsequent pixel display operation.

[0096] The step A20 is to enable the first driving element 41 to drive the first sub-pixel 31 to perform the single-face display operation according to the first scanning signal of the first scanning line G1, and simultaneously enable the second driving element 42 to drive the second sub-pixel 32 to perform the double-face same display operation according to the second scanning signal of the second scanning line G2 when the double-face different display mode is the front-side brightness enhancement mode.

[0097] In the embodiment, referring to Figure 4 and Figure 7 , the first scanning line G1 and the second scanning line G2 simultaneously provide Figure 7In the signal pulse waveform (a) shown, the first scan signal and the second scan signal are respectively connected. At this time, the second scan signal is applied to the fourth thin film transistor T4 via the third thin film transistor T3 connected by the signal line S1, so that the second sub-pixel 32 penetrates the first back plate 100 and the second back plate 200 through the transparent electrodes on both sides (i.e., the first transparent electrode 11 and the second transparent electrode 21) to achieve bidirectional transparent display. At the same time, the first scan signal is applied to the second thin film transistor T2 connected by the signal line S1, so that the light emitted by the second sub-pixel 32 is synchronously reflected to the first back plate 100, thereby achieving bidirectional transparent display while the first back plate 100 and the second back plate 200 are displayed synchronously. Figure 7 The brightness of the first backplate 100 shown in (b) is enhanced.

[0098] It should be noted that the first scan signal and the second scan signal are the same in the front brightness enhancement mode. In addition, the design of the reflective electrode 22 can be omitted for the first sub-pixel 31 and the second sub-pixel 32 in the dual-sided display mode and the front brightness enhancement mode, so that the first sub-pixel 31 is stacked on the second sub-pixel 32 to form a lamp back structure, and the first transparent electrode 11 and the second transparent electrode 21 are respectively provided on both sides of the lamp back structure, which can also be used for display in the dual-sided display mode and the front brightness enhancement mode.

[0099] Step A30: If the dual-sided display mode is a display mode with different screens on the front and back, while enabling the first scan line G1 to provide the first scan signal to drive the first sub-pixel 31 in the current timing cycle, the first scan line G1 is also enabled to provide the second scan signal to drive the second sub-pixel 32 in the next timing cycle of the current timing cycle.

[0100] In this embodiment, refer to Figure 4 as well as Figure 8 , Figure 8 The first scan line G1 shown in (a) outputs a first scan signal in the current timing cycle to activate each first driving element 41 to drive the corresponding first sub-pixel 31 to emit light toward the first back panel 100 to achieve front image display, and in the next timing cycle of the current timing cycle, it passes through Figure 8 The second scan line G2 shown in (a) outputs a second scan signal to activate each second driving element 42 to drive the corresponding second sub-pixel 32 to emit light, so that the light emitted by the second sub-pixel 32 simultaneously penetrates the first back plate 100 and the second back plate 200. This achieves bidirectional light transmission while simultaneously enabling the reverse image display through the light penetrating the second back plate 200 via the second sub-pixel 32. Thus, through alternating scanning, independent image refresh is achieved on both sides (first back plate 100 and second back plate 200), achieving... Figure 8(b) in the display effect of the front and back different pictures.

[0101] Further, in some other possible embodiments, the display panel comprises a front light unit array and a back light unit array, and the front light unit array and the back light unit array are sequentially and laminatedly provided with the first back plate 100 and the second back plate 200. The front light unit array comprises adjacent front light units of different colors, and the back light unit array is provided with back light units of the same color and axial symmetry with the front light units. Specifically, referring to Figure 9 As shown in the figure, the plurality of front light units can be red sub-pixels R1, green sub-pixels G1 and blue sub-pixels B1 in a hemispherical shape, and in the back light unit array, the back light unit same as the red sub-pixel R1 in a hemispherical shape is a red sub-pixel R2 in a hemispherical shape, the back light unit same as the green sub-pixel G1 in a hemispherical shape is a green sub-pixel G2 in a hemispherical shape, and the back light unit same as the blue sub-pixel B1 in a hemispherical shape is a blue sub-pixel B2 in a hemispherical shape. In addition, the gap regions represented by the horizontal line shaded part in the front light unit array and the back light unit array are filled with a high-refractive transparent encapsulation glue to form a transparent encapsulation layer, thereby significantly improving the light transmission efficiency of the front / back light unit array when normally emitting light.

[0102] It should be noted that the front light unit and the back light unit can be a hemispherical pixel structure. The hemispherical pixel structure is composed of an insulating protective layer, a P-GaN, a light-emitting layer, an N-GaN, an N-pole in contact with the N-GaN surface, and a P-pole in contact with the PN-GaN surface. Since Figure 9 As shown in the figure, the P-pole is thinner and narrower than the N-pole, thereby making the light-emitting viewing angle of the hemispherical pixel structure wider, and the luminance changes smoothly under different angle states, and the limit is close to a paper screen. The light-emitting layer can be red, green or blue, and each front light unit is driven by a corresponding first driving element 41, and each back light unit is driven by a corresponding second driving element 42.

[0103] In specific embodiments, when the user display requirement is a single-sided display mode, the display driving element is determined to be the first driving element 41, and each first driving element 41 is enabled to drive the corresponding front light unit to emit light according to the first scanning signal provided by the Figure 11 As shown in the figure, the first scanning line G1 provides a first scanning signal to drive the corresponding front light unit to emit light, thereby realizing the single-sided display requirement of the display panel.

[0104] When the user display requirement is a double-sided display mode, Figure 12 When the first scanning line G1 provides a first scanning signal, Figure 12The second scan signal provided by the second scan line G2 synchronously, so that each first driving member 41 enables the corresponding front light emitting unit to emit light under the driving of the first scan signal, and synchronously enables each second driving member 42 to drive the corresponding back light emitting unit to emit light under the driving of the second scan signal, to realize the same picture bidirectional display of the display panel as shown in Figure 12 .

[0105] When the user display requirement is the front-back different picture display mode, Figure 13 The first scan signal output by the first scan line G1 in the current timing period enables each first driving member 41 to drive the corresponding front light emitting unit to emit light to realize the front picture display, and then, after the front light emitting unit stops emitting light (i.e. in the next timing period of the current timing period), the second scan signal output by the second scan line G2 enables each second driving member 42 to drive the corresponding back light emitting unit to emit light to realize the back picture display, so as to realize the independent picture refresh of the front and back by the alternate scanning, and achieve the display effect of the front-back different pictures as shown in Figure 13 . Figure 13

[0106] In addition, the present application also provides a display device. Please refer to Figure 14 Figure 14 is a structural schematic diagram of the display device involved in the embodiment scheme of the present application. The display device of the embodiment of the present application can be a device running a display driving method locally.

[0107] As shown in Figure 14 , the display device of the embodiment of the present application can include a display panel, or a processor 1001 such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to realize the connection communication between these components. The user interface 1003 can include a display screen (Display) and an input unit such as a keyboard (Keyboard). The optional user interface 1003 can also include a standard wired interface and a wireless interface. The network interface 1004 can optionally include a standard wired interface and a wireless interface (such as a Wi-Fi interface).

[0108] The memory 1005 is arranged on the main body of the display device, and the memory 1005 stores a program. When the program is executed by the processor 1001, the corresponding operation is realized. The memory 1005 is also used to store the parameters used by the display device. The memory 1005 can be a high-speed RAM memory, or a stable memory (non-volatile memory) such as a disk memory. The memory 1005 can also be an optional storage device independent of the aforementioned processor 1001. ​​

[0109] Those skilled in the art can understand that Figure 14 The display device structure shown in the figures does not constitute a limitation on the display device, and can include more or fewer components than shown, or combine certain components, or different component arrangements.

[0110] As Figure 14 As shown, the memory 1005 as a storage medium can include an operating system, a network communication module, a user interface module, and a display driver.

[0111] In Figure 14 In the display device shown, the processor 1001 can be configured to invoke the display driver stored in the memory 1005 and execute the steps of the display driving method as described above.

[0112] In addition, to achieve the above-mentioned purpose, the present application also provides a storage medium, which is a computer readable storage medium, and the computer readable storage medium stores a display driver, and the display driver, when executed by a processor, implements the steps of the display driving method according to any one of the above-mentioned embodiments

[0113] It should be noted that in this document, the term "comprising" or "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or system. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or system including the element.

[0114] The above-mentioned embodiment numbers of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0115] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of software and necessary general hardware platforms, of course, they can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as a ROM / RAM, a magnetic disk, an optical disk) as described above, and includes a plurality of instructions for causing a display device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application.

[0116] The above merely preferred embodiments of the present application and are not intended to limit the patent scope of the present application, any equivalent structure or equivalent process transformation made by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel, characterized by, The display panel comprises: a first back plate and a second back plate; an array of light-emitting units arranged between the first back plate and the second back plate, each light-emitting unit in the array comprising a first sub-pixel and a second sub-pixel of the same color, the first sub-pixel and the second sub-pixel being jointly provided with a first transparent electrode on a side close to the first back plate, the first sub-pixel being provided with a reflective electrode on a side close to the second back plate, and the second sub-pixel being provided with a second transparent electrode penetrating through the second back plate on a side close to the second back plate; a drive control module comprising a first drive element electrically connected to the first sub-pixel and a second drive element electrically connected to the second sub-pixel, the drive control module being configured to drive a corresponding display drive element to perform a pixel display operation according to a user display requirement, the display drive element being at least one of the first drive element and the second drive element.

2. The display panel of claim 1, wherein, The first drive element comprises a first thin-film transistor, a second thin-film transistor, and a first capacitor; a first end of the first thin-film transistor is electrically connected to a first scan line, a gate end of the first thin-film transistor is electrically connected to a signal line, a second end of the first thin-film transistor is electrically connected to a first end of the first capacitor and a gate end of the second thin-film transistor respectively, a second end of the first capacitor and a first end of the second thin-film transistor are electrically connected to a first potential end respectively; a second end of the second thin-film transistor is electrically connected to a side of the first sub-pixel close to the first transparent electrode, and a side of the first sub-pixel close to the reflective electrode is electrically connected to a second potential end.

3. The display panel of claim 2, wherein, The second drive element comprises a third thin-film transistor, a fourth thin-film transistor, and a second capacitor; a first end of the third thin-film transistor is electrically connected to a second scan line, a gate end of the third thin-film transistor is electrically connected to the signal line, a second end of the third thin-film transistor is electrically connected to a first end of the second capacitor and a gate end of the fourth thin-film transistor respectively, a first end of the fourth thin-film transistor is electrically connected to the first potential end, a second end of the fourth thin-film transistor and a second end of the second capacitor are electrically connected to a side of the second sub-pixel close to the first transparent electrode and a side of the second sub-pixel close to the second transparent electrode respectively, and the side of the second sub-pixel close to the second transparent electrode is electrically connected to the second potential end.

4. A display driving method, characterized by, The display driving method is applied to the display panel of any one of claims 1 to 3, and the display driving method comprises: obtaining a user display requirement through a drive control module, the user display requirement being any one of a single-face display mode, a double-face same-display mode, and a double-face different-display mode; driving a corresponding display drive element to perform a pixel display operation according to the user display requirement, the display drive element being at least one of a first drive element and a second drive element.

5. The display driving method according to claim 4, wherein The step of driving the corresponding display drive element to perform the pixel display operation according to the user display requirement comprises: When the user display requirement is the single-side display mode, it is determined that the display driver is the first driver, and the first driver is enabled to drive the first sub-pixel to perform the single-side display operation according to the first scanning signal of the first scanning line; When the user display requirement is the double-side same display mode, it is determined that the display driver is the second driver, and the second driver is enabled to drive the second sub-pixel to perform the double-side same display operation according to the second scanning signal of the second scanning line.

6. The display driving method according to claim 5, wherein The step of enabling the first driver to drive the first sub-pixel to perform the single-side display operation according to the first scanning signal of the first scanning line comprises: The first driver is enabled to drive the first sub-pixel to perform the single-side display operation according to the first scanning signal of the first scanning line.

7. The display driving method according to claim 5, wherein The step of enabling the second driver to drive the second sub-pixel to perform the double-side same display operation according to the second scanning signal of the second scanning line comprises: The second driver is enabled to drive the second sub-pixel to perform the double-side same display operation according to the second scanning signal of the second scanning line.

8. The display driving method according to claim 5, wherein The step of driving the corresponding display driver to perform the pixel display operation according to the user display requirement comprises: When the user display requirement is the double-side different display mode, it is determined that the display driver is the first driver and the second driver; If the double-side different display mode is the front-side brightness enhancement mode, the first driver is enabled to drive the first sub-pixel to perform the single-side display operation according to the first scanning signal of the first scanning line, and the second driver is enabled to drive the second sub-pixel to perform the double-side same display operation according to the second scanning signal of the second scanning line; If the double-side different display mode is the front-back different picture display mode, the first scanning line is enabled to provide the first scanning signal to drive the first sub-pixel in the current time sequence period, and the first scanning line is enabled to provide the second scanning signal to drive the second sub-pixel in the next time sequence period of the current time sequence period.

9. A display device, characterized by comprising: The display device comprises the display panel of any one of claims 1 to 3; Or, The memory, the processor, and a display driver stored in the memory and executable on the processor, wherein the processor executes the display driver to implement the steps of the display driving method of any one of claims 4 to 8.

10. A storage medium, characterized by The storage medium is a computer readable storage medium, and the computer readable storage medium stores a display driver, wherein the display driver is executable on a processor to implement the steps of the display driving method of any one of claims 4 to 8.

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