Display panel and display device

Abstract

This application discloses a display panel and a display device. The display panel has a first display area, a second display area, and a third display area. The display panel includes: pixel units, comprising a first pixel unit disposed in the first display area, a second pixel unit disposed in the second display area, and a third pixel unit disposed in the third display area; and a driving circuit, comprising a first driving circuit and a second driving circuit. The first driving circuit is disposed in the second display area and is electrically connected to the first pixel unit via wires. The second driving circuit is disposed in the third display area and is electrically connected to the second pixel unit and the third pixel unit via wires. This reduces the length of the wires used to connect the first driving circuit and the first pixel unit, lowers the impedance of the wires between the first driving circuit and the first pixel unit, prevents large parasitic capacitances between the wires, thereby avoiding moiré patterns and improving the display effect.

Description

Technical Field

[0001] This application belongs to the field of electronic product technology, and in particular relates to a display panel and display device. Background Technology

[0002] OLED (Organic Light-Emitting Diode) has advantages such as self-illumination, flexible screen design, high luminous efficiency, and fast response time. With advancements in screen manufacturing technology, OLED screen designs are pursuing higher screen-to-body ratios and greater integration of electronic components, leading to the gradual development of under-display camera technology with display capabilities.

[0003] To achieve the display function of the corresponding under-display camera area, the pixel units of the under-display camera area need to be driven by the driving circuit. Due to the limitations of the existing driving circuit layout and wires, the brightness of some pixel units is insufficient, which easily produces moiré pattern problems.

[0004] Therefore, there is an urgent need for a new display panel and display device. Summary of the Invention

[0005] This application provides a display panel and display device that reduces the length of the wires used to connect the first driving circuit and the first pixel unit, reduces the impedance of the wires between the first driving circuit and the first pixel unit, prevents large parasitic capacitance between the wires, avoids affecting pixel brightness, thereby avoiding the generation of display moiré patterns and improving the display effect.

[0006] This application provides a display panel having a first display area, a second display area, and a third display area. The third display area is at least partially disposed around the first display area, and a second display area is disposed between the first display area and the third display area. The light transmittance of the first display area is greater than that of the third display area. The display panel includes: a pixel unit, comprising a first pixel unit disposed in the first display area, a second pixel unit disposed in the second display area, and a third pixel unit disposed in the third display area; and a driving circuit, comprising a first driving circuit and a second driving circuit. The first driving circuit is disposed in the second display area and is electrically connected to the first pixel unit via a wire. The second driving circuit is disposed in the third display area and is electrically connected to the second pixel unit and the third pixel unit via wires.

[0007] According to one aspect of this application, the second driving circuit includes a first sub-driving circuit and a second sub-driving circuit, the first sub-driving circuit being electrically connected to the second pixel unit, and the second sub-driving circuit being electrically connected to the third pixel unit; preferably, a single first driving circuit is electrically connected to at least two first pixel units; preferably, a single first sub-driving circuit is electrically connected to a single second pixel unit. Preferably, a single first sub-driving circuit is electrically connected to at least two second pixel units.

[0008] According to one aspect of this application, the first sub-driving circuit is disposed close to the second display area relative to the second sub-driving circuit; preferably, the first sub-driving circuit is disposed around the second display area.

[0009] According to one aspect of this application, at least two adjacent first sub-driving circuits form a first driving circuit group, and the first driving circuit group and the second sub-driving circuit are arranged adjacent to each other.

[0010] According to one aspect of this application, the second sub-driving circuit includes a first color pixel unit driving circuit, a second color pixel unit driving circuit, and a third color pixel unit driving circuit, wherein the first color pixel unit driving circuit, the second color pixel unit driving circuit, and the third color pixel unit driving circuit are respectively connected to the third pixel unit of a different color; adjacent first color pixel unit driving circuits, second color pixel unit driving circuits, and third color pixel unit driving circuits form a second driving circuit group, and each second driving circuit group includes at least one first sub-driving circuit and at least three second sub-driving circuits.

[0011] According to one aspect of this application, the first driving circuit and the first pixel unit are electrically connected by a first wire, the extension length of the first wire being 1mm to 3mm; and / or, the first sub-driving circuit and the second pixel unit are electrically connected by a second wire, the extension length of the second wire being 3mm to 10mm; preferably, the first wire and the second wire are disposed in different layers.

[0012] According to one aspect of this application, the first wire is a transparent wire; the second wire is a non-transparent wire; preferably, the material of the first wire includes indium tin oxide, and the material of the second wire includes at least one of silver, copper, and aluminum.

[0013] According to one aspect of this application, the shape of the second display area matches the shape of the first display area; preferably, the shapes of the first display area and the second display area include at least one of a circle, a rectangle, an ellipse, and a rhombus.

[0014] According to one aspect of this application, the light transmittance of the second display area is greater than that of the third display area and less than that of the first display area; preferably, the distribution density of the first driving circuit in the second display area is less than that of the second driving circuit in the third display area.

[0015] In another aspect, the present invention provides a display device including a display panel as described in any of the above embodiments.

[0016] Compared with the prior art, the display panel provided in this embodiment of the invention includes pixel units and driving circuits. The first display area is used to correspondingly set optical elements such as cameras and fingerprint recognition elements, and has high requirements for light intake, thus making the light transmittance of the first display area greater than that of the third display area. Since the space of the first display area is relatively small, in order to achieve normal light emission and display of the first pixel unit, the first driving circuit electrically connected to the first pixel unit is located in the second display area, and the second driving circuit used to drive the second pixel unit of the second display area is located in the third display area. This avoids interference between the first driving circuit and the second driving circuit, avoids the need for winding the wires used to connect the first driving circuit and the first pixel unit, and because the second driving circuit driving the second pixel unit is moved to the third display area, the space required for the second display area is reduced, the width is reduced, and the length of the wires used to connect the first driving circuit and the first pixel unit is reduced, reducing the impedance of the wires between the first driving circuit and the first pixel unit, preventing large parasitic capacitance between the wires, avoiding affecting pixel brightness, thereby avoiding the generation of display moiré patterns and improving the display effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a display panel provided in one embodiment of this application;

[0019] Figure 2 This is one embodiment provided by this application. Figure 1 A magnified view of a section at point B in the middle;

[0020] Figure 3 This is another embodiment provided by this application. Figure 1 A magnified view of a section at point B in the middle;

[0021] Figure 4This is a membrane structure diagram of the second driving circuit group provided in one embodiment of this application;

[0022] Figure 5 This is a schematic diagram of the structure of a display panel provided in another embodiment of this application;

[0023] Figure 6 This is a schematic diagram of the structure of a display panel provided in another embodiment of this application.

[0024] In the attached image:

[0025] 1-Anode layer; 11-Anode block; 2-Organic light-emitting layer; 3-Cathode layer; 4-Pixel definition layer; p-Pixel unit; p1-First pixel unit; p2-Second pixel unit; p3-Third pixel unit; c-Driving circuit; c1-First driving circuit; c2-Second driving circuit; c21-First sub-driving circuit; c22-Second sub-driving circuit; c221-First color pixel unit driving circuit; c222-Second color pixel unit driving circuit; c223-Third color pixel unit driving circuit; d1-First wire; d2-Second wire; z1-First driving circuit group; z2-Second driving circuit group; TFT-Thin film transistor; J-Active layer; S-Source; D-Drain; G-Gate; AA1-First display area; AA2-Second display area; AA3-Third display area. Detailed Implementation

[0026] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0028] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0029] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this application can be combined with each other without contradiction.

[0030] This application provides a display panel and a display device, which will be described below in conjunction with the accompanying drawings. Figures 1 to 6 Various embodiments of the display panel and display device will be described.

[0031] Please see Figures 1 to 2This application provides a display panel having a first display area AA1, a second display area AA2, and a third display area AA3. The third display area AA3 is at least partially disposed around the first display area AA1. The second display area AA2 is disposed between the first display area AA1 and the third display area AA3. The light transmittance of the first display area AA1 is greater than that of the third display area AA3. The display panel includes: a pixel unit p, which includes a first pixel unit p1 disposed in the first display area AA1, a second pixel unit p2 disposed in the second display area AA2, and a third pixel unit p3 disposed in the third display area AA3; and a driving circuit c, which includes a first driving circuit c1 and a second driving circuit c2. The first driving circuit c1 is disposed in the second display area AA2 and is electrically connected to the first pixel unit p1 via a wire. The second driving circuit c2 is disposed in the third display area AA3 and is electrically connected to the second pixel unit p2 and the third pixel unit p3 via wires.

[0032] The display panel provided in this embodiment of the invention includes a pixel unit p and a driving circuit c. The first display area AA1 is used to correspondingly set optical elements such as cameras and fingerprint recognition elements. It has high requirements for light intake, so the light transmittance of the first display area AA1 is greater than that of the third display area AA3. Since the space of the first display area AA1 is relatively small, in order to achieve normal light emission and display of the first pixel unit p1, the first driving circuit c1, which is electrically connected to the first pixel unit p1, is located in the second display area AA2, and the second driving circuit c2, which drives the second pixel unit p2 in the second display area AA2, is located in the third display area AA3. This avoids interference between the first driving circuit c1 and the second driving circuit c2, avoids the need for winding the wires used to connect the first driving circuit c1 and the first pixel unit p1, and reduces the space and width required by the second display area AA2 by moving the second driving circuit c2 to the third display area AA3. This reduces the length of the wires used to connect the first driving circuit c1 and the first pixel unit p1, lowers the impedance of the wires between the first driving circuit c1 and the first pixel unit p1, prevents large parasitic capacitance between the wires, avoids affecting pixel brightness, and thus avoids the generation of moiré patterns and improves the display effect.

[0033] It should be noted that, since the second driving circuit c2 that drives the second pixel unit p2 is moved to the third display area AA3, the space occupied by the second display area AA2 is reduced. That is, the first driving circuit c1 in the second display area AA2 is closer to the first pixel unit p1 in the first display area AA1, and the required wire length is relatively reduced, thereby reducing the impedance of the wire. At the same time, it avoids the generation of large parasitic capacitance between the wires due to excessive wire length, which would affect the display effect.

[0034] In this embodiment, the second driving circuit c2 is electrically connected to the second pixel unit p2 and the third pixel unit p3 via wires. That is, part of the second driving circuit c2 located in the third display area AA3 needs to be connected to the second pixel unit p2 to drive the second pixel unit p2 located in the second display area AA2 to emit light and display, while another part of the second driving circuit c2 needs to be connected to the third pixel unit p3 to drive it to emit light and display in the third display area AA3.

[0035] Optionally, the transmittance of the second display area AA2 is greater than or equal to the transmittance of the third display area AA3, and less than the transmittance of the first display area AA1. When the transmittance of the second display area AA2 is greater than the transmittance of the third display area AA3, the transmittance of the first display area AA1, the second display area AA2, and the third display area AA3 gradually decreases, and the transmittance change is relatively smooth, avoiding the problem of obvious display differences between the first display area AA1, the second display area AA2, and the third display area AA3. When the transmittance of the second display area AA2 is equal to the transmittance of the third display area AA3, the display differences between the second display area AA2 and the third display area AA3 can be avoided, and the preparation is simple.

[0036] The transmittance of the first display area AA1, the second display area AA2, and the third display area AA3 can be adjusted by the distribution density, materials used, and placement of the pixel units p and driving circuits c within the first display area AA1, the second display area AA2, and the third display area AA3, without any special limitations.

[0037] Specifically, the transmittance of the second display area AA2 is greater than that of the third display area AA3, but less than that of the first display area AA1; and the distribution density of the first driving circuit c1 in the second display area AA2 is less than that of the second driving circuit c2 in the third display area AA3, so that the transmittance of the second display area AA2 and the third display area AA3 can be changed by adjusting the distribution density of the first driving circuit c1 and the second driving circuit c2.

[0038] In some optional embodiments, the second driving circuit c2 includes a first sub-driving circuit c21 and a second sub-driving circuit c22, the first sub-driving circuit c21 being electrically connected to the second pixel unit p2, and the second sub-driving circuit c22 being electrically connected to the third pixel unit p3.

[0039] In this embodiment, the composition of the first sub-driving circuit c21 and the second sub-driving circuit c22 of the second driving circuit c2 is the same. The only difference between the two is the pixel unit p they are connected to. Specifically, the first sub-driving circuit c21 and the second sub-driving circuit c22 can be a pixel circuit, namely a 7T1C circuit, which includes seven transistors (TFT, Thin Film Transistor) and one capacitor C.

[0040] Since the first sub-driving circuit c21 needs to be electrically connected to the second pixel unit p2 located in the second display area AA2 via a wire, in order to reduce the wire length between the first sub-driving circuit c21 and the second pixel unit p2, in some optional embodiments, the first sub-driving circuit c21 is positioned closer to the second display area AA2 relative to the second sub-driving circuit c22.

[0041] It is understandable that by placing the first sub-driving circuit c21 closer to the second display area AA2, that is, by placing the first sub-driving circuit c21 closer to the second pixel unit p2, the required wire length between the first sub-driving circuit c21 and the second pixel unit p2 can be reduced, thereby reducing the wire impedance and avoiding excessive parasitic capacitance.

[0042] Optionally, a single first driving circuit c1 is electrically connected to at least two first pixel units p1, and a single first sub-driving circuit c21 is electrically connected to at least two second pixel units p2.

[0043] It is understandable that a single first driving circuit c1 can drive multiple first pixel units p1, thereby reducing the number of required first driving circuits c1 and thus reducing the size of the second display area AA2 used to house the first driving circuits c1, improving the display effect of the display panel. Similarly, by having a single first sub-driving circuit c21 drive multiple second pixel units p2, the number of required first sub-driving circuits c21 can also be reduced, making it easier to set the first sub-driving circuits c21 in the third display area AA3.

[0044] In some optional embodiments, the first sub-driving circuit c21 is arranged around the second display area AA2. It is understood that the first sub-driving circuit c21 can specifically be arranged in a ring shape, and its shape can match the shape of the second display area AA2. For example, when the second display area AA2 is annular, the first sub-driving circuit c21 can also be correspondingly annular. By arranging the first sub-driving circuit c21 around the second display area AA2, each of the first sub-driving circuits c21 can be closer to the second display area AA2, and interference between the first sub-driving circuit c21 and the second sub-driving circuit c22, or between the wires of the first sub-driving circuit c21 and the wires of the second sub-driving circuit c22, can be avoided, thus ensuring the display effect of the display panel.

[0045] In some alternative embodiments, at least two adjacent first sub-driving circuits c21 form a first driving circuit group z1, and the first driving circuit group z1 and the second sub-driving circuit c22 are arranged adjacent to each other.

[0046] It is understandable that at least two adjacent first sub-driving circuits c21 form a first driving circuit group z1, which allows each first sub-driving circuit c21 to be centrally located for unified wiring control. Furthermore, setting up the first driving circuit group z1 also facilitates the unified fabrication of the first sub-driving circuits c21, effectively improving production efficiency and reducing production costs.

[0047] Since the first sub-driving circuit c21, originally located in the second display area AA2, has been moved to the third display area AA3, in order to avoid excessive interference from the first sub-driving circuit c21 on the layout and routing of the second sub-driving circuit c22 in the third display area AA3, and to ensure the regularity of the arrangement of each driving circuit c in the third display area AA3, please refer to [the relevant documentation / reference needed]. Figure 3 In some optional embodiments, the second sub-driving circuit c22 includes a first color pixel unit driving circuit c221, a second color pixel unit driving circuit c222, and a third color pixel unit driving circuit c223. The first color pixel unit driving circuit c221, the second color pixel unit driving circuit c222, and the third color pixel unit driving circuit c223 are respectively connected to third pixel units p3 of different colors. Adjacent first color pixel unit driving circuits c221, second color pixel unit driving circuits c222, and third color pixel unit driving circuits c223 form a second driving circuit group z2, and each second driving circuit group z2 includes at least one first sub-driving circuit c21 and at least three second sub-driving circuits c22.

[0048] Each second driving circuit group z2 includes at least one first sub-driving circuit c21 and at least three second sub-driving circuits c22. Specifically, each second driving circuit group z2 includes at least one first sub-driving circuit c21, at least one first color pixel unit driving circuit c221, at least one second color pixel unit driving circuit c222, and at least one third color pixel unit driving circuit c223.

[0049] It should be noted that the first pixel unit p1, the second pixel unit p2, and the third pixel unit p3 all include sub-pixels of different colors, such as red sub-pixels, green sub-pixels, and blue sub-pixels, in order to achieve color display.

[0050] Depending on the pixel arrangement used, red, green, and blue sub-pixels form RGB or RGBG pixel groups. The first color pixel unit driving circuit c221, the second color pixel unit driving circuit c222, and the third color pixel unit driving circuit c223 are respectively connected to sub-pixels of different colors. The second driving circuit group z2 formed by adjacent first color pixel unit driving circuits c221, second color pixel unit driving circuit c222, and third color pixel unit driving circuit c223 corresponds to the RGB or RGBG pixel groups formed by the red, green, and blue sub-pixels. At least one additional first sub-driving circuit c21 can be added to each second driving circuit group z2 to electrically connect to the second pixel unit p2, improving the regularity of the first sub-driving circuit c21's arrangement and avoiding significant interference from the first sub-driving circuit c21 to the arrangement of the first color pixel unit driving circuits c221, second color pixel unit driving circuit c222, and third color pixel unit driving circuit c223. This facilitates the fabrication and shaping of the first and second sub-driving circuits c21 and c22.

[0051] Since the first sub-driving circuit c21 needs to be moved to the third display area AA3, in order to ensure that the third display area AA3 has enough space to set up the first sub-driving circuit c21, the arrangement space of the driving circuit c in the third display area AA3 needs to be compressed.

[0052] For details, please refer to Figure 4 The first pixel unit p1, the second pixel unit p2, and the third pixel unit p3 each include an anode layer 1, an organic light-emitting layer 2, and a cathode layer 3 stacked along the thickness direction of the display panel. The anode layer 1 includes multiple anode blocks 11. The anode blocks 11 are usually arranged in a one-to-one correspondence with the driving circuits c. However, in the third display area, in order to add at least one first sub-driving circuit c21 in each second driving circuit group z2, four driving circuits c can be arranged in the space corresponding to the three anode blocks 11, namely, a first color pixel unit driving circuit c221, a second color pixel unit driving circuit c222, a third color pixel unit driving circuit c223, and a first sub-driving circuit c21. Compared with the prior art, the size of the anode blocks 11 in this embodiment remains unchanged, while the first color pixel unit driving circuit c221, the second color pixel unit driving circuit c222, and the third color pixel unit driving circuit c223 are compressed so that the space originally set with three driving circuits c can be set with four driving circuits c, thus realizing the reasonable arrangement of the first sub-driving circuit c21 in the third display area AA3.

[0053] Optionally, the anode layer 121 is generally made of a material with a high work function to improve hole injection efficiency. It can be gold (Au), platinum (Pt), titanium (Ti), silver (Ag), indium tin oxide (ITO), zinc tin oxide (IZO), or a transparent conductive polymer (such as polyaniline). The cathode layer 323 is generally made of a material with a low work function to facilitate electron injection. It also reduces heat generated during operation and extends the lifespan of the OLED device. The cathode layer 323 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.

[0054] Optionally, a pixel defining layer 4 is also included, which has pixel openings that expose at least a portion of the anode block 11. The pixel defining layer 4 can be made of hexamethyl dimethicone, epoxy resin, or polyimide (PI), or other silicone-based organic adhesive materials with a light transmittance of 90% or higher, or other organic adhesive materials with slightly lower light transmittance (greater than 80%) and slightly higher flexural strength. This embodiment does not limit the specific materials used in this embodiment.

[0055] Optionally, each driving circuit c includes a thin-film transistor (TFT). The TFT includes an active layer J, a gate G, a source S, and a drain D. The materials of the drain D, source S, and gate G can include one or more combinations of molybdenum, titanium, aluminum, and copper. The gate G of the TFT is typically used to receive a control signal, causing the TFT to turn on or off under the control of the control signal. One of the source S and drain D of the TFT is connected to the anode layer 1.

[0056] In some optional embodiments, the first driving circuit c1 and the first pixel unit p1 are electrically connected by a first wire d1, the extension length of the first wire d1 being 1mm to 3mm. And / or, the first sub-driving circuit c21 and the second pixel unit p2 are electrically connected by a second wire d2, the extension length of the second wire d2 being 3mm to 10mm.

[0057] In the prior art, the extension length of the wire connecting the first driving circuit c1 and the first pixel unit p1 is greater than 10mm, meaning the wire length used in the prior art is much greater than the extension length of the first wire d1. This embodiment of the invention moves the second driving circuit c2, which drives the second pixel unit p2, from the second display area AA2 to the third display area AA3, thereby reducing the overall size of the second display area AA2 and consequently reducing the required routing distance of the first wire d1. Optionally, the extension length of the first wire d1 is 3mm.

[0058] The first sub-driving circuit c21 and the second pixel unit p2 are electrically connected by the second wire d2. In order to avoid excessive impedance due to the excessive length of the second wire d2, the first sub-driving circuit c21 needs to be set close to the second pixel unit p2, that is, the first sub-driving circuit c21 is set close to the second display area AA2, so that the extension length of the second wire d2 is kept between 3mm and 10mm.

[0059] Since both the first wire d1 and the second wire d2 need to pass through the second display area AA2, in order to avoid mutual interference between the first wire d1 and the second wire d2, the first wire d1 and the second wire d2 can be set in different layers, that is, the first wire d1 and the second wire d2 can run through different conductive layers, so as to avoid problems such as interference or capacitive coupling between the first wire d1 and the second wire d2.

[0060] Since the first conductor d1 needs to extend into the first display area AA1 and connect electrically with the first light-emitting unit, in order to ensure the light transmittance of the first display area AA1, in some optional embodiments, the first conductor d1 is a transparent conductor to avoid blocking the incoming natural light. Optionally, the material of the first conductor d1 includes ITO (Indium Tin Oxide). Of course, the material of the first conductor d1 can also be other materials, such as opaque materials such as silver, tin, and aluminum, without any particular limitation. Optionally, since the light transmittance requirements of the first display area AA1 and the second display area AA2 through which the second conductor d2 passes are relatively low, the second conductor d2 can be a non-transparent conductor. The material of the second conductor d2 includes at least one of silver, copper, and aluminum.

[0061] Please see Figure 1 , Figure 5 and Figure 6 In some optional embodiments, the shape of the second display area AA2 matches the shape of the first display area AA1. It is understood that since the first driving circuit c1 located in the second display area AA2 needs to be connected to the first pixel unit p1 of the first display area AA1, by matching the shape of the second display area AA2 with the shape of the first display area AA1, it is convenient to set the first driving circuit c1 in the second display area AA2 corresponding to the first pixel unit p1, and it is also convenient to extend the first wire d1 between the first driving circuit c1 and the first pixel unit p1.

[0062] Optionally, the shapes of the first display area AA1 and the second display area AA2 include circles (e.g., Figure 1 As shown), rectangle (as shown) Figure 4 The shape can be at least one of the following: ellipse, rhombus, or oval. The specific choice can be made according to actual needs and there are no special restrictions.

[0063] Optional, such as Figure 6 As shown, the first display area AA1 is circular, while the second display area AA2 is elliptical. The first driving circuit c1 is arranged horizontally outside the first display area AA1 to make full use of the space of the second display area AA2 and facilitate electrical connection with the first pixel unit p1.

[0064] It should be noted that, Figures 1 to 6 Only a portion of the pixel units p and driving circuit c are shown for illustration, and not all of the pixel units p and driving circuit c are shown.

[0065] This invention also provides a display device, including the display panel in any of the above embodiments.

[0066] Therefore, the display device provided in the embodiments of the present invention has the technical effects of the display panel in any of the above embodiments, and the explanations of the same or corresponding structures and terms as in the above embodiments will not be repeated here.

[0067] The display device provided in this application embodiment can be applied to mobile phones, or to any electronic product with display function, including but not limited to the following categories: televisions, laptops, desktop monitors, tablets, digital cameras, smart bracelets, smart glasses, vehicle displays, medical devices, industrial control equipment, touch interactive terminals, etc. This application embodiment does not make any special limitations on these.

[0068] The above are merely specific embodiments of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

[0069] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

Claims

1. A display panel, characterized in that, The display panel includes a first display area, a second display area, and a third display area, wherein the third display area is at least partially disposed around the first display area, the second display area is disposed between the first display area and the third display area, and the light transmittance of the first display area is greater than that of the third display area. A pixel unit, the pixel unit comprising a first pixel unit disposed in a first display area, a second pixel unit disposed in a second display area, and a third pixel unit disposed in a third display area; The driving circuit includes a first driving circuit and a second driving circuit. The first driving circuit is located in the second display area and is electrically connected to the first pixel unit via a wire. Each first driving circuit is electrically connected to at least two first pixel units. The second driving circuit is located in the third display area and is electrically connected to the second pixel unit and the third pixel unit via wires. The second driving circuit includes a first sub-driving circuit and a second sub-driving circuit. The first sub-driving circuit is electrically connected to the second pixel unit, and the second sub-driving circuit is electrically connected to the third pixel unit. The first driving circuit and the first pixel unit are electrically connected via a first wire, and the first sub-driving circuit and the second pixel unit are electrically connected via a second wire. The extension length of the first wire is less than or equal to the extension length of the second wire.

2. The display panel according to claim 1, characterized in that, A single first sub-driving circuit and a single second pixel unit are electrically connected.

3. The display panel according to claim 1, characterized in that, The first sub-driving circuit is positioned closer to the second display area than the second sub-driving circuit.

4. The display panel according to claim 1, characterized in that, The first sub-driving circuit is arranged around the second display area.

5. The display panel according to claim 1, characterized in that, At least two adjacent first sub-driving circuits form a first driving circuit group, and the first driving circuit group and the second sub-driving circuit are arranged adjacent to each other.

6. The display panel according to claim 1, characterized in that, The second sub-driving circuit includes a first color pixel unit driving circuit, a second color pixel unit driving circuit, and a third color pixel unit driving circuit. The first color pixel unit driving circuit, the second color pixel unit driving circuit, and the third color pixel unit driving circuit are respectively connected to the third pixel unit of different colors. The adjacent first color pixel unit driving circuit, second color pixel unit driving circuit and third color pixel unit driving circuit form a second driving circuit group, and each second driving circuit group includes at least one first sub-driving circuit and at least three second sub-driving circuits.

7. The display panel according to claim 1, characterized in that, The first conductor has an extension length of 1 mm to 3 mm; and / or the second conductor has an extension length of 3 mm to 10 mm.

8. The display panel according to claim 7, characterized in that, The first conductor and the second conductor are disposed in different layers.

9. The display panel according to claim 7, characterized in that, The first conductor is a transparent conductor; the second conductor is a non-transparent conductor.

10. The display panel according to claim 7, characterized in that, The material of the first conductor includes indium tin oxide, and the material of the second conductor includes at least one of silver, copper, and aluminum.

11. The display panel according to claim 1, characterized in that, The shape of the second display area matches the shape of the first display area.

12. The display panel according to claim 1, characterized in that, The shapes of the first display area and the second display area include at least one of the following: circle, rectangle, ellipse, and rhombus.

13. The display panel according to claim 1, characterized in that, The light transmittance of the second display area is greater than that of the third display area, but less than that of the first display area.

14. The display panel according to claim 1, characterized in that, The distribution density of the first driving circuit in the second display area is less than the distribution density of the second driving circuit in the third display area.

15. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 14.

Images