Display panel and display panel control method

Abstract

The application discloses a display panel and a display panel control method. The display panel comprises a substrate, the substrate having opposite first and second surfaces; a first pixel unit arranged on the first surface side of the substrate, the first pixel unit comprising a top-emission light-emitting structure; and a second pixel unit comprising a bottom-emission light-emitting structure, the bottom-emission light-emitting structure and the top-emission light-emitting structure both emitting light along a first direction, the first direction being a direction from the second surface to the first surface; and the orthographic projections of the first pixel unit and the second pixel unit on the substrate being arranged adjacently. The light emitted by the first pixel unit and the second pixel unit reaches the left and right eyes of a viewer through different optical path differences, forming two images with parallax, so that the viewer can watch a 3D display image in a naked eye condition without the need of adding additional components, and the user can experience the 3D stereoscopic effect at any time and anywhere.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic products, and particularly relates to a display panel and a display panel control method. BACKGROUND

[0002] In recent years, stereoscopic display, i.e. 3D (three-dimensional) display, has become a major trend in the display field. Compared with ordinary two-dimensional display, 3D technology can make the picture stereoscopic and realistic, the image is no longer limited to the screen plane, and seems to be able to walk out of the screen, giving the audience a sense of being there. Although there are many classifications of 3D display technology, the most basic principle is similar, that is, different images are received by the left and right eyes of the human eye, i.e. the distance between the two eyes of a person is about 65 mm. Due to this positional difference, the left and right eyes see different two-dimensional images, and then the brain superimposes and regenerates the information of different two-dimensional images to form an image with a stereoscopic directional effect.

[0003] Now the mainstream stereoscopic display technology is realized through special equipment such as glasses, and naked-eye 3D technology applied to mobile devices has not been realized. Therefore, there is a problem that the 3D stereoscopic effect cannot be experienced at any time and any place, and related equipment needs to be worn to experience 3D stereoscopic images.

[0004] Therefore, there is an urgent need for a new display panel and a display panel control method. SUMMARY

[0005] The display panel and the display panel control method provided by the embodiments of the application are characterized in that the light emitted by the first pixel unit and the second pixel unit reaches the left eye and the right eye of the viewer through different optical path differences to form two images with parallax, so that the viewer can watch the 3D display image in the naked eye case without the need to increase additional components, and the user can experience the 3D stereoscopic effect at any time and any place, thereby improving the user experience.

[0006] The display panel provided by the embodiments of the application is characterized in that the display panel comprises a substrate, a first pixel unit and a second pixel unit. The substrate has opposite first and second surfaces. The first pixel unit is arranged on the first surface side of the substrate and comprises a top-emission light-emitting structure. The second pixel unit is arranged on the second surface side of the substrate and comprises a bottom-emission light-emitting structure. The bottom-emission light-emitting structure and the top-emission light-emitting structure both emit light along a first direction, and the first direction is a direction from the second surface to the first surface. The normal projections of the first pixel unit and the second pixel unit on the substrate are arranged adjacently.

[0007] According to an aspect of the present application, a color resist layer is further included on the side of the first pixel unit away from the substrate, the color resist layer includes a plurality of color resists and a black matrix between adjacent color resists, and a projection of the black matrix on the substrate is between projections of adjacent first pixel units and second pixel units on the substrate.

[0008] According to an aspect of the present application, a first pixel driving circuit and a second pixel driving circuit are further included; the first pixel driving circuit is arranged between the substrate and the top-emission light-emitting structure, and the first pixel driving circuit is electrically connected to the top-emission light-emitting structure; the second pixel driving circuit is arranged between the substrate and the bottom-emission light-emitting structure, and the second pixel driving circuit is electrically connected to the bottom-emission light-emitting structure; a projection of the first pixel driving circuit on the substrate and a projection of the second pixel driving circuit on the substrate at least partially overlap; preferably, a projection of the black matrix on the substrate and a projection of at least one of the first pixel driving circuit and the second pixel driving circuit on the substrate partially overlap.

[0009] According to an aspect of the present application, the top-emission light-emitting structure includes a first anode layer, a first light-emitting material layer and a first cathode layer arranged in a stack along the first direction; the bottom-emission light-emitting structure includes a second anode layer, a second light-emitting material layer and a second cathode layer arranged in a stack along the first direction; the materials of the first cathode layer and the second anode layer both include a light-transmitting material; preferably, the material of the first cathode layer includes magnesium silver metal, and the material of the second anode layer includes indium tin oxide.

[0010] According to an aspect of the present application, in adjacent first pixel units and second pixel units, a projection of the first anode layer on the substrate and a projection of the second anode layer on the substrate partially overlap.

[0011] According to an aspect of the present application, a timing circuit is further included on the side of the second surface of the substrate, the timing circuit includes a first timing circuit and a second timing circuit, the first timing circuit is electrically connected to the first pixel unit, and the second timing circuit is electrically connected to the second pixel unit.

[0012] According to an aspect of the present application, the first pixel unit and the second pixel unit are arranged alternately along a second direction; and / or, the first pixel unit and the second pixel unit are arranged alternately along a third direction, and the second direction and the third direction are arranged intersectingly.

[0013] According to an aspect of the present application, the first pixel unit and the second pixel unit each include sub-pixels of different colors, and the sub-pixels of the same color in the first pixel unit and the second pixel unit are arranged in pairs of two in the orthographic projection on the substrate; preferably, the sub-pixels include red sub-pixels, green sub-pixels and blue sub-pixels.

[0014] According to another aspect of the present application, in the normal display stage, the brightness of the second pixel unit is controlled to be greater than the brightness of the first pixel unit.

[0015] According to another aspect of the present application, in the normal display stage, the brightness of the second pixel unit is controlled to be greater than the brightness of the first pixel unit.

[0016] Compared with the prior art, the display panel provided by the embodiment of the present application includes a substrate, a first pixel unit and a second pixel unit, the first pixel unit and the second pixel unit are respectively arranged on two sides of the substrate, the first pixel unit includes a top-emitting light emitting structure, and the second pixel unit includes a bottom-emitting light emitting structure, the light emitted by the bottom-emitting light emitting structure needs to be emitted through the substrate, so that the bottom-emitting light emitting structure and the top-emitting light emitting structure both emit light in the first direction. Since the bottom-emitting light emitting structure and the top-emitting light emitting structure are separated by a substrate, the optical paths of the light emitted by the bottom-emitting light emitting structure and the top-emitting light emitting structure to the same light emitting surface of the display panel are different. The light emitted by the first pixel unit and the second pixel unit reaches the left eye and the right eye of a viewer through different optical path differences, forming two images with parallax, so that the viewer can watch the 3D display image with naked eyes without the need of adding additional components, and the user can experience the 3D stereoscopic effect at any time and anywhere, improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0018] Figure 1is a structural schematic diagram of a display panel provided by an embodiment of the present application;

[0019] Figure 2 is a back view of a display panel provided by an embodiment of the present application;

[0020] Figure 3 is a schematic diagram of relative positions of a first pixel unit and a second pixel unit provided by an embodiment of the present application;

[0021] Figure 4 is a schematic diagram of relative positions of a first pixel unit and a second pixel unit provided by another embodiment of the present application;

[0022] Figure 5 is a schematic diagram of arrangement of a first pixel unit and a second pixel unit provided by an embodiment of the present application;

[0023] Figure 6 is a flowchart of a display panel control method provided by an embodiment of the present application.

[0024] In the drawings:

[0025] 1 - substrate; 2 - top emission light emitting structure; 21 - first anode layer; 22 - first light emitting material layer; 23 - first cathode layer; 3 - bottom emission light emitting structure; 31 - second anode layer; 32 - second light emitting material layer; 33 - second cathode layer; 4 - color resist layer; 41 - color resist; 42 - black matrix; 5 - encapsulation layer; 51 - first inorganic encapsulation layer; 52 - organic encapsulation layer; 53 - second inorganic encapsulation layer; 6 - timing circuit; 7 - control chip; 8 - pixel definition layer; P1 - first pixel unit; P2 - second pixel unit; T1 - first pixel driving circuit; T2 - second pixel driving circuit; Q1 - red sub-pixel; Q2 - green sub-pixel; Q3 - blue sub-pixel; Z - first direction. DETAILED DESCRIPTION

[0026] The features and exemplary embodiments of various aspects of the present application will be described below in detail, in order to make the purposes, technical solutions and advantages of the present application more clear and apparent, the present application will be further described in detail below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are configured only to explain the present application, and are not configured to limit the present application. The present application can be implemented without some of these specific details by those skilled in the art. The following description of the embodiments is merely to provide a better understanding of the present application by showing examples of the present application.

[0027] It should be noted that, in this document, the terms such as first and second, etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the elements defined by the statement "include" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0028] It should be understood that, when describing the structure of a component, when one layer, one region is referred to as being "on" or "above" another layer, another region, it can mean being directly on or above another layer, another region, or containing other layers or regions therebetween. Moreover, if the component is turned over, the layer, the region will be "under" or "below" the other layer, the other region.

[0029] Various modifications and changes can be made to the present application in matters of form and detail without departing from the spirit and scope of the application, which will be apparent to one skilled in the art. Therefore, the present application is intended to cover modifications and variations of the present application that come within the scope of the corresponding claims (claimed technical solutions) and their equivalents. It should be noted that the embodiments provided by the present application can be combined with each other as long as they are not contradictory.

[0030] The present application provides a display panel and a display panel control method, which will be described below in conjunction with the accompanying drawings Figures 1 to 6 The embodiments of the display panel and the display panel control method are described.

[0031] Please refer to Figure 1 The display panel provided by the present application includes: a substrate 1 having opposite first and second surfaces; a first pixel unit P1 provided on the first surface side of the substrate 1, the first pixel unit P1 including a top-emission light-emitting structure 2; and a second pixel unit P2 provided on the second surface side of the substrate 1, the second pixel unit P2 including a bottom-emission light-emitting structure 3, the top-emission light-emitting structure 2 and the bottom-emission light-emitting structure 3 both emitting light along a first direction Z, the first direction Z being a direction from the second surface to the first surface; and the orthographic projections of the first pixel unit P1 and the second pixel unit P2 on the substrate 1 are adjacently arranged.

[0032] The display panel provided by the embodiment of the present application comprises a substrate 1, a first pixel unit P1 and a second pixel unit P2, the first pixel unit P1 and the second pixel unit P2 are respectively arranged on two sides of the substrate 1, the first pixel unit P1 comprises a top-emitting light-emitting structure 2, the second pixel unit P2 comprises a bottom-emitting light-emitting structure 3, light emitted by the bottom-emitting light-emitting structure 3 needs to be emitted through the substrate 1, so that the bottom-emitting light-emitting structure 3 and the top-emitting light-emitting structure 2 both emit light along a first direction Z, since the bottom-emitting light-emitting structure 3 and the top-emitting light-emitting structure 2 are separated by one substrate 1, the optical paths of light emitted by the bottom-emitting light-emitting structure 3 and the top-emitting light-emitting structure 2 to the same light-emitting surface of the display panel are different, the light emitted by the first pixel unit P1 and the second pixel unit P2 reaches the left eye and the right eye of a viewer through different optical path differences, forming two images with parallax, so that the viewer can watch a 3D display image in a naked eye condition, without the need to increase additional components, and the user can experience 3D stereoscopic effect at any time and anywhere, improving the user experience.

[0033] It should be noted that, due to the limitation of its own structure, the bottom-emitting light-emitting structure 3 emits light towards the direction in which the substrate 1 is located, and the top-emitting light-emitting structure 2 emits light away from the direction in which the substrate 1 is located, so the bottom-emitting light-emitting structure 3 is arranged on the second surface side of the substrate 1, which can be understood as the bottom side of the substrate 1, so the light emitted by the bottom-emitting light-emitting structure 3 needs to pass through the substrate 1, and the top-emitting light-emitting structure 2 is arranged on the first surface side of the substrate 1, which can be understood as the top side of the substrate 1, so the light emitted by the top-emitting light-emitting structure 2 does not need to pass through the substrate 1, but directly emits to the light-emitting surface of the display panel, through the above arrangement, the setting requirements of the top-emitting light-emitting structure 2 and the bottom-emitting light-emitting structure 3 can be met, and the light emitting directions of the top-emitting light-emitting structure 2 and the bottom-emitting light-emitting structure 3 are the same, so that the top-emitting light-emitting structure 2 and the bottom-emitting light-emitting structure 3 form two images with parallax, so that the viewer can watch a 3D display image in a naked eye condition.

[0034] The substrate 1 is made of a transparent material, which can be a hard substrate such as a glass substrate, or a flexible substrate, and is not particularly limited, for example, the substrate 1 can be glass, quartz, silicon wafer, polycarbonate, polymethyl methacrylate or metal foil, etc. The selection and pretreatment of the substrate 1 are familiar to those skilled in the art, for example, a buffer layer (not shown in the figure) is formed, etc., so it will not be described in detail.

[0035] In some optional embodiments, the top-emitting light-emitting structure 2 comprises a first anode layer 21, a first light-emitting material layer 22 and a first cathode layer 23 arranged in a stack along the first direction Z; the bottom-emitting light-emitting structure 3 comprises a second anode layer 31, a second light-emitting material layer 32 and a second cathode layer 33 arranged in a stack along the first direction Z.

[0036] It is understood that in this embodiment, since the first light-emitting material layer 22 in the top-emitting light-emitting structure 2 needs to emit light through the first cathode layer 23, the first cathode layer 23 needs to be made of a material with good light transmittance. Furthermore, to facilitate electron injection, the material of the first cathode layer 23 is generally made of a material with a low work function. This also reduces the heat generated during operation and extends the lifespan of the display device. The material of the first cathode layer 23 can be one of the following metals: silver (Ag), aluminum (Al), lithium (Li), magnesium (Mg), ytterbium (Yb), calcium (Ca), or indium (In). It can also be an alloy of the aforementioned metals, such as magnesium-silver alloy (Mg / Ag) or lithium-aluminum alloy (Li / Al). This embodiment does not impose any limitations on this.

[0037] Similarly, since the second anode layer 31 of the bottom-emitting light-emitting structure 3 is located on the light-emitting side of the second light-emitting material layer 32, the second light-emitting material layer 32 needs to emit light through the second anode layer 31. The second anode layer 31 needs to be made of a light-transmitting material, such as indium tin oxide (ITO), zinc tin oxide (IZO) or transparent conductive polymers (such as polyaniline).

[0038] Optionally, it also includes a pixel definition layer 8, which is disposed on the side of the first cathode layer 23 away from the first light-emitting material layer 22 and the side of the second cathode layer 33 away from the second light-emitting material layer 32. The pixel definition layer 8 has a pixel opening. The pixel opening of the pixel definition layer 8 disposed on the side of the first cathode layer 23 away from the first light-emitting material layer 22 exposes at least a portion of the first anode layer 21. The pixel opening of the pixel definition layer 8 disposed on the side of the second cathode layer 33 away from the second light-emitting material layer 32 exposes at least a portion of the second anode layer 31.

[0039] Optionally, an encapsulation layer 5 may be covered on both the pixel definition layer 8 located on the side of the first cathode layer 23 facing away from the first light-emitting material layer 22 and the side of the second cathode layer 33 facing away from the second light-emitting material layer 32. Optionally, the encapsulation layer 5 may include a first inorganic encapsulation layer 51, an organic encapsulation layer 52 and a second inorganic encapsulation layer 53 stacked together.

[0040] In order to further separate the two images formed by the top-emitting light-emitting structure 2 and the bottom-emitting light-emitting structure 3, and make the binocular parallax more obvious, in some optional embodiments, the display panel also includes a color resist layer 4 disposed on the side of the first pixel unit P1 away from the substrate 1. The color resist layer 4 includes a plurality of color resists 41 and a black matrix 42 disposed between adjacent color resists 41. The orthographic projection of the black matrix 42 on the substrate 1 is located between the orthographic projections of the adjacent first pixel unit P1 and the second pixel unit P2 on the substrate 1.

[0041] It can be understood that, since the black matrix 42 is located on the light-emitting side of the first pixel unit P1 and the second pixel unit P2, and the orthographic projection of the black matrix 42 on the substrate 1 is located between the orthographic projections of the adjacent first pixel unit P1 and second pixel unit P2 on the substrate 1, the light-blocking black matrix 42 can separate the two groups of pictures generated by the first pixel unit P1 and the second pixel unit P2, enhance the stereoscopic effect of the formed display image, and further improve the experience effect of the user. Optionally, the orthographic projection of the black matrix 42 on the substrate 1 can be in a shape of a rectangle, a trapezoid, or the like, and a plurality of black matrices 42 are provided, each of which is individually arranged between the first pixel unit P1 and the second pixel unit P2. Of course, the orthographic projection of the black matrix 42 on the substrate 1 can also be arranged around the first pixel unit P1 and / or the second pixel unit P2, that is, the black matrix 42 is arranged in a ring shape.

[0042] In order to drive the top-emitting light-emitting structure 2 and the bottom-emitting light-emitting structure 3, in some optional embodiments, the display panel further includes a first pixel driving circuit T1 and a second pixel driving circuit T2; the first pixel driving circuit T1 is arranged between the substrate 1 and the top-emitting light-emitting structure 2, and is electrically connected between the first pixel driving circuit T1 and the top-emitting light-emitting structure 2; the second pixel driving circuit T2 is arranged between the substrate 1 and the bottom-emitting light-emitting structure 3, and is electrically connected between the second pixel driving circuit T2 and the bottom-emitting light-emitting structure 3; the orthographic projection of the first pixel driving circuit T1 on the substrate 1 and the orthographic projection of the second pixel driving circuit T2 on the substrate 1 at least partially overlap.

[0043] It can be understood that the orthographic projection of the first pixel driving circuit T1 on the substrate 1 and the orthographic projection of the second pixel driving circuit T2 on the substrate 1 at least partially overlap, that is, the first pixel driving circuit T1 and the second pixel driving circuit T2 partially overlap in the thickness direction of the display panel, so as to improve the space utilization of the display panel, that is, to improve the PPI (Pixels Per Inch, pixel density) of the display panel. For example, when the display panel is a 400PPI product, 200PPI first pixel driving circuits T1 can be averagely distributed on the first surface side of the substrate 1, and 200PPI second pixel driving circuits T2 can be averagely distributed on the second surface side of the substrate 1, so that the display panel displays at 400PPI, and the resolution requirement of the display is ensured.

[0044] Optionally, the orthographic projection of the black matrix 42 on the substrate 1 and the orthographic projection of at least one of the first pixel driving circuit T1 and the second pixel driving circuit T2 on the substrate 1 partially overlap.

[0045] In the embodiment, since the black matrix 42 is opaque, the black matrix 42 can be adjusted in size and position to shield the first pixel driving circuit T1 and / or the second pixel driving circuit T2 to avoid the risk of the first pixel driving circuit T1 and / or the second pixel driving circuit T2 being visible. Optionally, since the first pixel driving circuit T1 is arranged between the substrate 1 and the top-emitting light-emitting structure 2, which is closer to the light-emitting surface of the display panel, the risk of being visible is greater, and thus the orthographic projection of the black matrix 42 on the substrate 1 can cover the orthographic projection of the first pixel driving circuit T1 on the substrate 1 to shield the first pixel driving circuit T1 from being seen by the user.

[0046] Optionally, the first pixel driving circuit T1 and the second pixel driving circuit T2 each include a driving transistor T, one of the source S and the drain D of the driving transistor T is electrically connected to the first anode layer 21 of the top-emitting light-emitting structure 2, and one of the source S and the drain D of the driving transistor T is electrically connected to the second anode layer 31 of the bottom-emitting light-emitting structure 3.

[0047] It should be noted that the driving transistor T can specifically be a thin-film transistor, which includes a gate G, a source S, and a drain D, and the materials of the drain D, the source S, and the gate G can include one or a combination of molybdenum, titanium, aluminum, copper, etc. The gate G of the thin-film transistor is usually used to receive a control signal to make the thin-film transistor conduct or cut off under the control of the control signal. One of the source S and the drain D of the thin-film transistor is connected to the anode layer to control the normal light emission of the pixel unit.

[0048] In some optional embodiments, in the adjacent first pixel unit P1 and the second pixel unit P2, the orthographic projection of the first anode layer 21 on the substrate 1 and the orthographic projection of the second anode layer 31 on the substrate 1 partially overlap.

[0049] It can be understood that the orthographic projection of the first anode layer 21 on the substrate 1 and the orthographic projection of the second anode layer 31 on the substrate 1 partially overlap, i.e., the first anode layer 21 and the second anode layer 31 partially overlap in the thickness direction of the display panel, to improve the space utilization of the display panel, thereby ensuring the resolution requirement and display effect. Of course, the overlapping part of the first anode layer 21 and the second anode layer 31 should not be too much, otherwise it may affect the light-emitting effect of the second pixel unit P2 corresponding to the second anode layer 31 located below.

[0050] In order to meet the requirement of the user for 2D and 3D display switching, in some optional embodiments, the display panel further comprises a timing circuit 6 arranged on the second surface of the substrate 1, and the timing circuit 6 comprises a first timing circuit and a second timing circuit, the first timing circuit is electrically connected with the first pixel unit P1, and the second timing circuit is electrically connected with the second pixel unit P2.

[0051] It can be understood that the timing circuit 6 can control the light emitting sequence of the first pixel unit P1 and the second pixel unit P2. Since the distance between the second pixel unit P2 and the light emitting surface of the display panel is greater than that between the first pixel unit P1 and the light emitting surface of the display panel, the light path of the light emitted by the second pixel unit P2 to the light emitting surface of the display panel is also greater than that of the light emitted by the first pixel unit P1 to the light emitting surface of the display panel, and thus more time is required. When the first timing circuit and the second timing circuit synchronously send the same timing signal to the first pixel unit P1 and the second pixel unit P2 respectively, the light emitted by the second pixel unit P2 reaches the light emitting surface of the display panel later than the light emitted by the first pixel unit P1.

[0052] Similarly, the light emitted by the first pixel unit P1 and the second pixel unit P2 also reaches the left eye and the right eye of the viewer through different light path differences, forming two images with parallax, realizing 3D display. When normal display is required, the timing signal sent by the first timing circuit and the second timing circuit to the first pixel unit P1 and the second pixel unit P2 respectively needs to be adjusted, so that the second pixel unit P2 emits light earlier than the first pixel unit P1, and thus the light emitted by the first pixel unit P1 and the second pixel unit P2 can reach the left eye and the right eye of the viewer at the same time, realizing normal 2D display.

[0053] Please refer to Figure 2 Optionally, the timing circuit 6 and the control chip 7 and other components connected with the first pixel unit P1 and the second pixel unit P2 can be arranged on the second surface of the substrate 1, i.e. the back of the substrate 1, so as to realize frameless display of the display panel.

[0054] In order to ensure the display effect of the 3D display image, in some optional embodiments, the first pixel unit P1 and the second pixel unit P2 are alternately arranged along a second direction; and / or, the first pixel unit P1 and the second pixel unit P2 are alternately arranged along a third direction, and the second direction and the third direction are arranged intersectingly.

[0055] It can be understood that the first pixel unit P1 and the second pixel unit P2 are alternately arranged along the second direction, that is, the first pixel unit P1 and the second pixel unit P2 are uniformly arranged in the order of the first pixel unit P1, the second pixel unit P2, the first pixel unit P1, and the second pixel unit P2 along the second direction, so as to ensure the uniformity of the first pixel unit P1 and the second pixel unit P2 displayed along the second direction and improve the display effect of the 3D display image. Similarly, the first pixel unit P1 and the second pixel unit P2 can also be alternately arranged along the third direction, or the first pixel unit P1 and the second pixel unit P2 can be alternately arranged along the second direction and the third direction at the same time, so as to improve the display effect of the entire display panel. As shown in Figure 3 each sub-pixel in the first pixel unit P1 is arranged adjacent to each other, each sub-pixel in the second pixel unit P2 is arranged adjacent to each other, and the corresponding light emitted by the first pixel unit P1 and the second pixel unit P2 enters the left eye and the right eye of the viewer, respectively.

[0056] Please refer to Figure 4 and Figure 5 Optionally, the first pixel unit P1 and the second pixel unit P2 each include sub-pixels of different colors, and the orthographic projections of the sub-pixels of the same color in the first pixel unit P1 and the second pixel unit P2 on the substrate 1 are arranged adjacent to each other.

[0057] It should be noted that each sub-pixel in the first pixel unit P1 and the second pixel unit P2 needs to be arranged with a spacing so that the orthographic projections of the sub-pixels of the same color in the first pixel unit P1 and the second pixel unit P2 on the substrate 1 are arranged adjacent to each other, for example, the spacing between the two adjacent sub-pixels of different colors in the first pixel unit P1 corresponds to the arrangement of one sub-pixel in the second pixel unit P2. Optionally, in order to improve the pixel arrangement density, the size of the spacing between any two adjacent sub-pixels in the first pixel unit P1 and the second pixel unit P2 is equal to the size of the sub-pixel to be arranged.

[0058] Optionally, the sub-pixels include red sub-pixels Q1, green sub-pixels Q2, and blue sub-pixels Q3. For example, when the red sub-pixels Q1, the green sub-pixels Q2, and the blue sub-pixels Q3 in the first pixel unit P1 are arranged in sequence along the second direction, the red sub-pixels Q1, the green sub-pixels Q2, and the blue sub-pixels Q3 in the second pixel unit P2 are also arranged in sequence along the second direction, that is, the orthographic projection of the red sub-pixel Q1 in the first pixel unit P1 and the red sub-pixel Q1 in the second pixel unit P2 on the substrate 1 is arranged adjacent to each other, and the orthographic projection of the green sub-pixel Q2 in the first pixel unit P1 and the green sub-pixel Q2 in the second pixel unit P2 on the substrate 1 is arranged adjacent to each other, and the orthographic projection of the blue sub-pixel Q3 in the first pixel unit P1 and the blue sub-pixel Q3 in the second pixel unit P2 on the substrate 1 is arranged adjacent to each other.

[0059] Optionally, the sub-pixels in the first pixel unit P1 and the second pixel unit P2 can be in the shape of a rectangle, a rhombus, etc., and the first pixel unit P1 and the second pixel unit P2 formed by the respective sub-pixels can be arranged in the form of a rectangle, a triangle, etc., and are not specifically limited.

[0060] Please refer to Figure 6 The embodiment of the present application also provides a display panel control method, comprising:

[0061] S110: in the normal display stage, providing a first timing signal and a second timing signal to the first pixel unit P1 and the second pixel unit P2 respectively, the timing of the first timing signal and the second timing signal being asynchronous, so that the optical path difference of the first pixel unit P1 and the second pixel unit P2 to the light-emitting surface of the display panel is the same;

[0062] S120: in the three-dimensional display stage, providing a third timing signal and a fourth timing signal to the first pixel unit P1 and the second pixel unit P2 respectively, the timing of the third timing signal and the fourth timing signal being synchronous, so that the optical path difference of the first pixel unit P1 and the second pixel unit P2 to the light-emitting surface of the display panel is different.

[0063] The display panel control method in the embodiment of the present application controls the timing signals received by the first pixel unit P1 and the second pixel unit P2, so as to realize the switching between the normal display stage and the three-dimensional display stage of the display panel, and meet different needs of users.

[0064] In step S110, in the normal display stage, the timing of the first timing signal and the second timing signal is made asynchronous, so that the optical path difference of the first pixel unit P1 and the second pixel unit P2 to the light-emitting surface of the display panel is the same, that is, the second pixel unit P2 emits light earlier than the first pixel unit P1, and then the light emitted by the first pixel unit P1 and the second pixel unit P2 can reach the left eye and the right eye of the viewer at the same time, realizing normal two-dimensional display.

[0065] In step S120, in the three-dimensional display stage, when the first timing circuit and the second timing circuit synchronously send the timing-synchronous third timing signal and the fourth timing signal to the first pixel unit P1 and the second pixel unit P2 respectively, the light emitted by the second pixel unit P2 will reach the light-emitting surface of the display panel later than the light emitted by the first pixel unit P1, that is, the light emitted by the first pixel unit P1 and the second pixel unit P2 will also pass through different optical path differences to reach the left eye and the right eye of the viewer, forming two images with parallax, realizing 3D display.

[0066] Since the second pixel unit P2 is arranged on the second surface of the substrate 1, the light emitted by the second pixel unit P2 needs to pass through the film layers of the substrate 1, and the brightness loss is greater than that of the first pixel unit P1. In order to ensure the brightness uniformity of the display panel in the normal display stage, optionally, in the normal display stage, the brightness of the second pixel unit P2 is greater than that of the first pixel unit P1.

[0067] It can be understood that the brightness of the second pixel unit P2 can be adjusted by adjusting the driving voltage and other parameters of the second pixel driving circuit T2, so that the brightness of the light emitted by the first pixel unit P1 and the second pixel unit P2 is the same on the light emitting surface of the display panel or in the eyes of the user, and the user experience is improved.

[0068] The display panel provided by the embodiment of the present application can be applied to a mobile phone, and can also be applied to any electronic product with a display function, including but not limited to the following categories: television, notebook computer, desktop display, tablet computer, digital camera, smart bracelet, smart glasses, vehicle-mounted display, medical equipment, industrial control equipment, touch interaction terminal, etc. The embodiment of the present application does not make special limitations on this.

[0069] The above is only a specific embodiment of the present application, and those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, module and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be described here. It should be understood that the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed in the present application, and these modifications or replacements should be covered within the protection scope of the present application.

[0070] It should be further pointed out that the exemplary embodiments mentioned in the present application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above steps, that is, the steps can be executed in the order mentioned in the embodiments, or can be different from the order in the embodiments, or several steps can be executed simultaneously.

Claims

1. A display panel, characterized in that, include: A substrate having opposing first and second surfaces; A first pixel unit is disposed on one side of a first surface of the substrate, and the first pixel unit includes a top-emitting light-emitting structure. The second pixel unit is disposed on one side of the second surface of the substrate. The second pixel unit includes a bottom emitting light-emitting structure. Both the bottom emitting light-emitting structure and the top emitting light-emitting structure emit light along a first direction. The first direction is the direction from the second surface to the first surface. The first pixel unit and the second pixel unit are arranged adjacent to each other on the substrate by their orthogonal projections. A color resist layer is disposed on the side of the first pixel unit away from the substrate. The color resist layer includes a plurality of color resists and a black matrix disposed between adjacent color resists. The orthographic projection of the black matrix on the substrate is located between the orthographic projections of adjacent first pixel units and second pixel units on the substrate.

2. The display panel according to claim 1, characterized in that, It also includes a first pixel driving circuit and a second pixel driving circuit; The first pixel driving circuit is disposed between the substrate and the top emitting light-emitting structure, and the first pixel driving circuit and the top emitting light-emitting structure are electrically connected. The second pixel driving circuit is disposed between the substrate and the bottom emitting light-emitting structure, and the second pixel driving circuit and the bottom emitting light-emitting structure are electrically connected. The orthographic projection of the first pixel driving circuit on the substrate and the orthographic projection of the second pixel driving circuit on the substrate at least partially overlap.

3. The display panel according to claim 2, characterized in that, The orthographic projection of the black matrix on the substrate coincides with the orthographic projection of at least one of the first pixel driving circuit and the second pixel driving circuit on the substrate.

4. The display panel according to claim 1, characterized in that, The top-emitting light-emitting structure includes a first anode layer, a first light-emitting material layer, and a first cathode layer stacked along the first direction; The bottom-emitting light-emitting structure includes a second anode layer, a second light-emitting material layer, and a second cathode layer stacked along the first direction; Both the first cathode layer and the second anode layer are made of light-transmitting materials.

5. The display panel according to claim 4, characterized in that, The material of the first cathode layer includes magnesium silver metal, and the material of the second anode layer includes indium tin oxide.

6. The display panel according to claim 4, characterized in that, In adjacent first pixel units and second pixel units, the orthographic projection of the first anode layer on the substrate and the orthographic projection of the second anode layer on the substrate partially overlap.

7. The display panel according to claim 1, characterized in that, It also includes a timing circuit, which is disposed on one side of the second surface of the substrate. The timing circuit includes a first timing circuit and a second timing circuit. The first timing circuit is electrically connected to the first pixel unit, and the second timing circuit is electrically connected to the second pixel unit.

8. The display panel according to claim 1, characterized in that, The first pixel unit and the second pixel unit are alternately arranged along the second direction; and / or, The first pixel unit and the second pixel unit are alternately arranged along a third direction, and the second direction and the third direction are intersected.

9. The display panel according to claim 1, characterized in that, Both the first pixel unit and the second pixel unit include sub-pixels of different colors, and the sub-pixels of the same color in the first pixel unit and the second pixel unit are arranged adjacent to each other on the substrate by their orthogonal projections.

10. The display panel according to claim 9, characterized in that, The sub-pixels include red sub-pixels, green sub-pixels, and blue sub-pixels.

11. A display panel control method, used for the display panel according to any one of claims 1 to 10, characterized in that, include: During the normal display phase, a first timing signal and a second timing signal are provided to the first pixel unit and the second pixel unit respectively. The timing of the first timing signal and the second timing signal are asynchronous, so that the optical path difference from the first pixel unit and the second pixel unit to the light-emitting surface of the display panel is the same. During the three-dimensional display stage, a third timing signal and a fourth timing signal are provided to the first pixel unit and the second pixel unit, respectively. The timing of the third timing signal and the fourth timing signal are synchronized so that the optical path difference from the first pixel unit and the second pixel unit to the light-emitting surface of the display panel is different.

12. The display panel control method according to claim 11, characterized in that, During the normal display phase, the brightness of the second pixel unit is controlled to be greater than the brightness of the first pixel unit.

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