Display panel and display device

Abstract

This invention provides a display panel and a display device. The display panel includes a plurality of pixels disposed in a first display area and a plurality of driving circuits disposed in a second display area. The plurality of pixels includes a plurality of odd-numbered pixels and a plurality of even-numbered pixels arranged at intervals along a first direction. The plurality of driving circuits includes a first-side driving circuit located on a first side of the first display area and a second-side driving circuit located on a second side of the first display area. The first-side driving circuit is connected to the corresponding odd-numbered pixels via a first conductive line to drive the odd-numbered pixels accordingly, and the second-side driving circuit is connected to the corresponding even-numbered pixels via a second conductive line to drive the even-numbered pixels accordingly. The plurality of first conductive lines corresponding to the plurality of odd-numbered pixels extend toward the first side, and the plurality of second conductive lines corresponding to the plurality of even-numbered pixels extend toward the second side. This invention can improve the display uniformity of the display panel.

Description

Technical Field

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

[0002] In the field of electronic devices with displays, current trends in display panels aim for the largest possible screen-to-body ratio to enhance the user experience. For smartphones with a full-screen concept, various optical sensing components such as front-facing cameras, facial recognition, and fingerprint recognition are expected to be integrated into the screen to achieve a "full-screen" effect where the screen covers the entire front panel of the phone.

[0003] One existing method involves setting a transparent display area in the display area corresponding to the optical sensing element, with the optical sensing element positioned below this transparent area. This allows for the integration of optical sensing elements, such as the front-facing camera, into the display area while maintaining a complete screen appearance and undamaged display, thereby increasing the screen-to-body ratio and achieving a true full-screen display. However, existing full-screen solutions suffer from poor display quality and severe mura (uniform brightness) issues. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention provides a display panel and a display device.

[0005] The display panel provided by the present invention has a first display area and a second display area. The display panel includes a plurality of first pixels and a plurality of first driving circuits. The plurality of first pixels are disposed in the first display area, and the plurality of first pixels include a plurality of odd-numbered pixels and a plurality of even-numbered pixels arranged at intervals along a first direction. The plurality of first driving circuits are disposed in the second display area, and the plurality of first driving circuits include a plurality of first-side driving circuits located on a first side of the first display area and a plurality of second-side driving circuits located on a second side of the first display area. The first-side driving circuits are connected to the corresponding odd-numbered pixels via first conductive lines to drive the odd-numbered pixels accordingly, and the second-side driving circuits are connected to the corresponding even-numbered pixels via second conductive lines to drive the even-numbered pixels accordingly. The plurality of first conductive lines corresponding to the plurality of odd-numbered pixels extend toward the first side of the first display area, and the plurality of second conductive lines corresponding to the plurality of even-numbered pixels extend toward the second side of the first display area.

[0006] Preferably, the trace lengths of the plurality of first conductive lines are equal. Preferably, the trace lengths of the plurality of second conductive lines are equal. Preferably, the trace lengths of the first conductive lines and the trace lengths of the second conductive lines are equal.

[0007] Preferably, each first pixel includes a sub-pixel. Alternatively, each first pixel includes multiple sub-pixels of the same color, with the anodized sub-pixels of the same color interconnected.

[0008] Preferably, the second display area includes a transition area and a third display area, the transition area being adjacent to the first display area and located between the first display area and the third display area, and a plurality of first driving circuits being disposed within the transition area.

[0009] Preferably, the light transmittance of the first display area is higher than that of the second display area.

[0010] Preferably, the first side and the second side of the first display area are opposite sides along the first direction.

[0011] Preferably, the first conductive line and the second conductive line are respectively straight lines, broken lines, or serpentine lines.

[0012] Preferably, the line widths of the plurality of first conductive lines are equal. Preferably, the line widths of the plurality of second conductive lines are equal. Preferably, the line widths of the first conductive lines and the line widths of the second conductive lines are equal.

[0013] Preferably, both the first conductive wire and the second conductive wire are transparent wires.

[0014] The present invention also provides a display device, including a display panel as described in any of the preceding claims.

[0015] Compared with the prior art, the display panel and display device of the present invention can reduce the coupling phenomenon between different colors caused by the photoelectric characteristics of the driving circuit by changing the wiring method between the first driving circuit used to drive the first display area pixel and the first pixel, so that the driving circuits driving different columns of first pixels are in the same surrounding environment, thereby reducing the display unevenness caused by the brightness difference of the first display area and improving the overall display effect of the display device. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a display panel according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of a display panel according to another embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the connection method of the first conductive line according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of a pixel circuit according to an embodiment of the present invention.

[0021] Figure 5 This is a partial cross-sectional structural diagram of a display panel according to an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of a display device according to an embodiment of the present invention. Detailed Implementation

[0023] To provide a further understanding of the purpose, structure, features, and functions of the present invention, detailed descriptions are provided below with reference to specific embodiments.

[0024] It should be noted that although the terms “first,” “second,” “third,” etc., may be used in the text to describe various components, these components should not be limited by these terms; these terms are only used to distinguish one component from another.

[0025] It should be noted that when a layer, region, or component is described as being "formed" on another layer, region, or component, the layer, region, or component may be formed directly or indirectly on the other layer, region, or component. For example, intermediate layers, regions, or components may exist. When a layer, region, or component is described as being electrically "connected" or "bonded" to another layer, region, or component, the layer, region, or component may be "directly electrically connected or directly electrically bonded" to the other layer, region, or component, or "indirectly electrically connected or indirectly electrically bonded" to the other layer, region, or component such that an intermediate layer, intermediate region, or intermediate component is located therebetween.

[0026] For ease of explanation, the dimensions of the components in the figure may be enlarged; however, since the dimensions and thicknesses of the components in the figure are arbitrarily shown for ease of explanation, the following embodiments are not limited thereto.

[0027] In electronic terminal display screens (such as OLED screens for mobile phones), a true full-screen display effect can be achieved by designing the notch area or other areas as a transparent secondary screen area, with the camera placed below the secondary screen area, thus improving the screen-to-body ratio. Because the pixel driving circuits in the secondary screen area cannot be placed below it (otherwise it would affect light transmittance), a transition area can be set between the secondary screen area and the normal display area to house the driving circuits for the pixels in the secondary screen area, reducing the impact on the light transmittance of the secondary screen area. Since the area of ​​the transition area is also limited, it is not easy to ensure that every pixel in the secondary screen area has a corresponding pixel driving circuit; therefore, one pixel driving circuit will simultaneously drive multiple sub-pixels of the same color in the secondary screen area. To pursue high light transmittance in the secondary screen area, the pixel density (Pixels Per Inch, PPI) is reduced, changing the pixel size of the secondary screen area. The driving circuits for the pixels in the secondary screen area are placed on both sides of the bottom of the transition area. When these driving circuits are separated on both sides, due to the photoelectric characteristics of the driving circuits, coupling between different colors occurs, resulting in uneven display.

[0028] The present invention provides a display panel having a first display area and a second display area. The display panel includes a plurality of first pixels and a plurality of first driving circuits. The plurality of first pixels are disposed within the first display area, and include a plurality of odd-numbered pixels and a plurality of even-numbered pixels arranged at intervals along a first direction. The plurality of first driving circuits are disposed within the second display area, including a plurality of first-side driving circuits located on a first side of the first display area and a plurality of second-side driving circuits located on a second side of the first display area. The first-side driving circuits are connected to the corresponding odd-numbered pixels via first conductive lines to drive the odd-numbered pixels accordingly, and the second-side driving circuits are connected to the corresponding even-numbered pixels via second conductive lines to drive the even-numbered pixels accordingly. The plurality of first conductive lines corresponding to the plurality of odd-numbered pixels extend toward the first side of the first display area, and the plurality of second conductive lines corresponding to the plurality of even-numbered pixels extend toward the second side of the first display area.

[0029] The present invention interconnects the first pixels of odd and even positions in the first display area with the corresponding driving circuits on both sides of the first display area using a cross-wiring method, so that the driving circuits used to drive the first pixels of different columns are in the same surrounding environment, thereby reducing the display unevenness (Mura) caused by the brightness difference of the first display area and improving the display effect.

[0030] Please refer to the above. Figure 1 , Figure 1This is a schematic diagram of a display panel according to an embodiment of the present invention. The display panel 100 has a first display area 10 and a second display area 20. Optionally, the first display area 10 is a transparent display area. If the display panel 100 is applied to a display screen with a "full-screen" effect, a camera can be placed below the first display area 10 and take pictures through the transparent display area. Alternatively, the first display area 10 and the second display area 20 can be displayed together.

[0031] The display panel 100 includes a plurality of first pixels 1 and a plurality of first driving circuits 2. The plurality of first pixels 1 are disposed within a first display area 10, and the plurality of first pixels 1 include a plurality of odd-numbered pixels 11 and a plurality of even-numbered pixels 12 arranged at intervals along a first direction X.

[0032] Multiple first driving circuits 2 are disposed within the second display area 20. The multiple first driving circuits 2 include multiple first-side driving circuits 21 located on the first side of the first display area 10 and multiple second-side driving circuits 22 located on the second side of the first display area 10. The first-side driving circuits 21 are connected to the corresponding odd-numbered pixels 11 through the first conductive line 3 and are used to drive the odd-numbered pixels 11 accordingly. The second-side driving circuits 22 are connected to the corresponding even-numbered pixels 12 through the second conductive line 4 and are used to drive the even-numbered pixels 12 accordingly.

[0033] Among them, multiple first conductive lines 3 corresponding to multiple odd-numbered pixels 11 extend toward the first side of the first display area 10, and multiple second conductive lines 4 corresponding to multiple even-numbered pixels 12 extend toward the second side of the first display area 10. The first side of the first display area 10 can be as follows: Figure 1 The left side of the first display area 10 shown can be, for example, as shown in the figure. Figure 1 The first display area shown is on the right side, but the present invention is not limited thereto.

[0034] By changing the routing and arrangement of the first driving circuit 2 and the first pixel 1, the present invention can improve the display splitting effect of the first display area 10, so that in a solid color screen, there is no significant difference in display effect between the first display area 10 (such as a transparent display area) and the second display area 20 (such as a non-transparent area).

[0035] This invention includes, but is not limited to, the first display area 10 of the display panel 100 may employ an AMOLED (Active Matrix Organic Light Emitting Diode) display panel driving method. Please refer to... Figure 4 , Figure 4This is a schematic diagram of a pixel circuit according to an embodiment of the present invention. The pixel circuit includes a light-emitting unit 101 and a driving circuit 102. The light-emitting unit 101 is, for example, an organic light-emitting diode (OLED). The driving circuit 102 uses two transistors and a storage capacitor to drive the light-emitting unit 101 to emit light. The pixel circuit includes a switching transistor M0, a driving transistor M1, and a storage capacitor C1. The gate of the switching transistor M0 is connected to the scan line to receive the scan signal Scan, the source is connected to the data line to receive the data signal Vdata, and the drain is connected to the gate of the driving transistor M1. The source of the driving transistor M1 is connected to a first voltage terminal to receive a first voltage VDD (such as a high voltage), and the drain is connected to the anode of the light-emitting unit 101; one end of the storage capacitor C1 is connected to the drain of the switching transistor M0 and the gate of the driving transistor M1, and the other end is connected to the source of the driving transistor M1 and the first voltage terminal; the cathode of the light-emitting unit 101 is connected to a second voltage terminal to receive a second voltage VSS (such as a low voltage or ground voltage). When a scan signal Scan is applied through the scan line to turn on the switching transistor M0, the data signal Vdata sent by the data driving circuit through the data line will charge the storage capacitor C1 via the switching transistor M0, thereby storing the data signal Vdata in the storage capacitor C1. This stored data signal Vdata controls the conduction level of the driving transistor M1, thereby controlling the magnitude of the current flowing through the driving transistor to drive the light-emitting unit 101 to emit light. This current can determine the grayscale of the pixel's emission.

[0036] Please continue to refer to the above. Figure 1 and Figure 4 Based on the above working principle, the light-emitting unit 101 can correspond to the first pixel 1, and the line 103 connecting the driving circuit 102 from contact point A on one side of the light-emitting unit 101 to contact point B at the anode end of the light-emitting unit 101 can correspond to the first conductive line 3 (or the second conductive line 4). The driving circuit 102 can correspond to the first driving circuit 2. It should be noted that the first driving circuit 2 of the present invention is not based on... Figure 4 The "2T1C circuit" shown is the only example. The first driving circuit 2 mainly consists of transistors and capacitors, including but not limited to ground. The first driving circuit 2 of this invention can be any one of a 1T circuit, a 2T1C circuit, a 3T1C circuit, a 6T1C circuit, a 6T2C circuit, a 7T1C circuit, a 7T2C circuit, or a 9T1C circuit, where T represents a transistor and C represents a capacitor. Taking the "2T1C circuit" as an example, it refers to a pixel circuit that includes two thin-film transistors (T) and one capacitor (C). Other circuits can be deduced similarly. The structure of the above driving circuit is known to those skilled in the art, and therefore will not be described in detail here.

[0037] Please see Figure 5 , Figure 5This is a partial cross-sectional structural diagram of a display panel according to an embodiment of the present invention. Figure 5 The diagram schematically illustrates a connection configuration where the first pixel 1 is electrically connected to the first driving circuit 2 via the first conductive line 3. The first pixel 1 is disposed within the first display area 10, and the first driving circuit 2 is disposed within the second display area 20. The first pixel 1 includes an anode layer 111, a light-emitting functional layer 112, and a cathode layer 113 disposed on the first substrate 110. The anode layer 111, the light-emitting functional layer 112, and the cathode layer 113 can be configured as follows: Figure 4 The light-emitting unit 101 is shown. One end 31 of the first conductive line 3 is connected to the anode layer 111 of the first pixel 1, corresponding to... Figure 4 One end of the wire 103 shown is electrically connected to contact point B, and the other end 32 of the first conductive wire 3 is connected to the first driving circuit 2, corresponding to... Figure 4 The other end of the wire 103 shown is electrically connected to contact point A. The first conductive line 3 crosses the first display area 10 and the second display area 20, for example, as shown. Figure 4 Contact point A shown is located within the first display area 10, as follows: Figure 4 The contact point B shown is located within the second display area 20.

[0038] Please continue to refer to the above. Figure 4 and Figure 5 The first substrate 110 includes a thin-film transistor array layer with a first driving circuit 2. The thin-film transistor array layer may include a gate conductive layer, a source / drain conductive layer, a semiconductor active layer, and corresponding insulating layers. In the first driving circuit 2, corresponding to... Figure 4 The drain of the driving transistor M1 shown can be electrically connected to the first conductive line 3 via a conductive trace or via, thereby transmitting the driving signal of the first driving circuit 2 to the first pixel 1 through the first conductive line 3. In this way, the first driving circuit 2 can control its corresponding transistor to provide driving current to the anode layer 111 of the first pixel 1, i.e., write a positive voltage to the anode of the first pixel 1, and write a 0V or negative voltage to the coplanar cathode layer 113, i.e., write a 0V or negative voltage to the cathode of the first pixel 1. This is equivalent to... Figure 4 A driving signal flows between the anode and cathode of the light-emitting unit 101 shown, thereby controlling the first pixel 1 to emit light.

[0039] The second conductive wire 4 has the same connection structure and working principle as the first conductive wire 3, and will not be described in detail here. However, the routing direction of the second conductive wire 4 is different from that of the first conductive wire 3, such as... Figure 1As shown, multiple first conductive lines 3 corresponding to multiple odd-numbered pixels 11 extend from the first side of the first display area 10 to the second display area 20, and multiple second conductive lines 4 corresponding to multiple even-numbered pixels 12 extend from the second side of the first display area 10 to the second display area 20. Furthermore, since the odd-numbered pixels 11 and even-numbered pixels 12 are arranged alternately, and the first conductive lines 3 and second conductive lines 4 extend in different directions outward from the first display area 10, multiple first conductive lines 3 and second conductive lines 4 may overlap. Since the first conductive lines 3 and second conductive lines 4 cannot conduct electricity to each other, the first conductive lines 3 and second conductive lines 4 can be respectively disposed on different conductive layers. The overlap of the first conductive lines 3 and second conductive lines 4 can be separated by an insulating layer. However, this invention is not limited to this; as long as the first conductive lines 3 are electrically connected to the anode layer of the odd-numbered pixels 11, and the second conductive lines 4 are electrically connected to the anode layer of the even-numbered pixels 12, it is acceptable.

[0040] In different embodiments, each first pixel 1 may include a sub-pixel, such as a red, green, or blue sub-pixel; each first pixel 1 may also include several sub-pixels of the same color, with their anodes interconnected. In different embodiments, each first driving circuit 2 may be used to drive one or more sub-pixels (e.g., red, green, or blue sub-pixels of the same color). When each first driving circuit 2 needs to drive multiple sub-pixels, the multiple sub-pixels of the same color are connected by transparent wires, and the multiple sub-pixels of the same color are generally arranged in a straight line or a broken line. In this case, the space occupied by the first driving circuit 2 can be saved. When each first driving circuit 2 drives only one sub-pixel, the display effect is better, but it will result in a larger placement space for the required first driving circuit 2.

[0041] The first pixel 1 can correspond to a single sub-pixel (i.e., each first pixel 1 corresponds to a single light-emitting unit), or it can correspond to multiple sub-pixels interconnected by an anode (which can be called a group of pixels of the same color). This invention is not limited to this. Multiple sub-pixels interconnected by an anode form a pixel merging structure. Multiple sub-pixels included in a group of pixels of the same color can be electrically connected to the same pixel driving circuit, thereby controlling the display of multiple interconnected sub-pixels through a single pixel driving circuit. This reduces the driving wiring in the first display area 10, such as reducing the number of first conductive lines 3 and second conductive lines 4, thereby improving the light transmittance of the first display area 10.

[0042] The projections of the first display area 10 and the second display area 20 onto the display surface of the display panel 100 are non-overlapping. In one embodiment, the light transmittance of the first display area 10 is higher than that of the second display area 20.

[0043] In different embodiments of the present invention, the light-emitting layer material of the first pixel 1 may be a transparent light-emitting material. The first pixel 1 may include a first electrode layer, a second electrode layer, and an organic layer. The light transmittance of the first electrode layer and the second electrode layer may be greater than or equal to 70%, or even reach more than 90%. For example, the first electrode layer is an anode, the second electrode layer is a cathode, the cathode is a surface electrode, and the organic layer includes an organic light-emitting material layer. Optionally, the material of the first electrode layer includes at least one of indium tin oxide, indium zinc oxide, indium tin zinc oxide, silver-doped indium tin oxide, silver-doped indium zinc oxide, and graphene; the material of the second electrode layer includes at least one of indium tin oxide, indium zinc oxide, silver-doped indium tin oxide, silver-doped indium zinc oxide, graphene, magnesium, silver, and aluminum; the organic layer may be made of organic molecules or organic polymers; it should be noted that the present invention is not limited thereto. To further improve the light transmittance of the first display area 10, the display panel may also include a pixel definition layer of transparent material. The pixel definition layer has multiple openings, and the light-emitting layer structure of the first pixel 1 is disposed within these openings. The insulating layer within the first display area 10 of the display panel is preferably made of a transparent material to maximize the light transmittance of the first display area 10.

[0044] Please see Figure 2 , Figure 2 This is a schematic diagram of a display panel according to another embodiment of the present invention. The second display area 20 may include a transition area 201 and a third display area 202. The transition area 201 is adjacent to the first display area 10 and is located between the first display area 10 and the third display area 202. A plurality of first driving circuits 2 are disposed in the transition area 201.

[0045] In this embodiment, the plurality of first pixels 1 disposed in the first display area 10 may still include a plurality of odd-numbered pixels and a plurality of even-numbered pixels arranged at intervals along a certain direction, and the plurality of first driving circuits 2 may still include those located on the first side of the first display area 10 (e.g., Figure 2 Multiple first-side driving circuits 21 (as shown on the left) and second-side (as shown on the left side) located in the first display area 10 Figure 2 Multiple second-side driving circuits 22 (shown on the right) are arranged. First-side driving circuits 21 and second-side driving circuits 22 are respectively disposed within the transition region 201. The multiple first-side driving circuits 21 are used to correspondingly drive multiple odd-numbered pixels, each first-side driving circuit 21 being connected to each odd-numbered pixel via a first conductive line 3. The multiple second-side driving circuits 22 are used to correspondingly drive multiple even-numbered pixels, each second-side driving circuit 22 being connected to each even-numbered pixel via a second conductive line 4. The multiple first conductive lines 3 corresponding to the multiple odd-numbered pixels are respectively directed toward the first side of the first display area 10 (e.g., as shown on the right). Figure 2 Extending in the X1 direction shown, multiple second conductive lines 4 corresponding to multiple even-numbered pixels extend towards the second side of the first display area 10 (as shown in the image). Figure 2(As shown in the X2 direction). That is, the starting point of each first conductive line 3 is located at an odd-numbered pixel in the first display area 10, extends in the X1 direction, and ends at the first side driving circuit 21 in the transition area 201; the starting point of each second conductive line 4 is located at an even-numbered pixel in the first display area 10, extends in the X2 direction, and ends at the second side driving circuit 22 in the transition area 201. This allows for, as... Figure 2 The multiple first-side driving circuits 21 shown on the left control the odd-numbered pixels at positions 1, 3, 5, and 7, respectively. Figure 2 The multiple second-side driving circuits 22 shown on the right control even-numbered pixels at positions 2, 4, 6, and 8, respectively, but the present invention is not limited thereto. Those skilled in the art will understand that the driving objects of the first-side driving circuit 21 and the second-side driving circuit 22 can be interchanged, as long as a cross-interconnection method is satisfied. For example, if ordered from the right, the multiple first-side driving circuits 21 can be used to control odd-numbered pixels at positions 1, 3, 5, and 7 from the right, respectively, while the multiple second-side driving circuits 22 control even-numbered pixels at positions 2, 4, 6, and 8 from the right, respectively.

[0046] This invention includes, but is not limited to, the following: a plurality of second pixels and a plurality of second driving circuits may be disposed within the transition region 201, wherein the density of the plurality of second pixels within the transition region 201 is greater than or equal to the density of the plurality of first pixels 1 within the first display region 10, and the plurality of second driving circuits are used to correspondingly drive the plurality of second pixels. Optionally, a plurality of third pixels and a plurality of third driving circuits may be disposed within the third display region 202, wherein the density of the plurality of third pixels within the third display region 202 is greater than or equal to the density of the plurality of second pixels within the transition region 201, and the plurality of third driving circuits are used to correspondingly drive the plurality of third pixels. The second driving circuit and the third driving circuit are mainly composed of transistors and capacitors. The driving circuits of this invention can be any one of a 1T circuit, a 2T1C circuit, a 3T1C circuit, a 6T1C circuit, a 6T2C circuit, a 7T1C circuit, a 7T2C circuit, or a 9T1C circuit, where T represents a transistor and C represents a capacitor. Taking a "2T1C circuit" as an example, it refers to a pixel circuit that includes two thin-film transistors (T) and one capacitor (C), and other circuits can be deduced in the same manner. The driving methods of the third driving circuit and the second driving circuit can be as similar as possible, so that the display uniformity of the entire second display area 20 can be better.

[0047] In one embodiment, both the first conductive line 3 and the second conductive line 4 are transparent wires. The material of the transparent wire may include at least one of indium tin oxide, indium zinc oxide, silver-doped indium tin oxide, silver-doped indium zinc oxide, and graphene. For example, the first conductive line 3 and the second conductive line 4 may be made of transparent indium tin oxide (ITO) to reduce the resistance of the wires while maintaining high light transmittance.

[0048] In one embodiment, the multiple first conductive lines 3 have equal trace lengths. Optionally, the multiple second conductive lines 4 have equal trace lengths. Preferably, the trace lengths of the first conductive lines 3 and the second conductive lines 4 are equal. Please refer to [reference needed]. Figure 1 and Figure 4 The trace length of each first conductive line 3 or second conductive line 4 refers to the distance between the drive signal output contact point A of the drive circuit 102 (corresponding to the first drive circuit 2) and the anode contact point B of the light-emitting unit 101 (corresponding to the first pixel 1). This ensures that the IR voltage drop on each pixel trace is as consistent as possible, and with consistent trace resistance, there is no brightness difference between pixels.

[0049] Please see Figure 3 , Figure 3 This is a schematic diagram illustrating the connection method of the first conductive line according to an embodiment of the present invention. To address the IR voltage drop problem of transparent conductive lines (such as ITO traces) between first pixels, the following can be used: Figure 3 The connection method shown uses the longest trace length of the first conductive line required to drive a certain first pixel as the reference length, for example... Figure 3 Since the rightmost odd-numbered first pixel 11 is relatively far from the first-side driving circuit 21, the length of the first conductive line 3 required for the rightmost odd-numbered first pixel 11 is used as the reference length, and the length of the first conductive line required for other first pixels is equal to this reference length. In one embodiment, the first conductive line 3 can be routed in a straight line, a broken line, or a serpentine pattern to ensure that the length of each first conductive line 3 is equal. This can minimize the differences between pixels caused by IR voltage drop and improve display uniformity.

[0050] Optionally, the first conductive line 3 and the second conductive line 4 can be straight lines, broken lines, or serpentine lines, but the present invention is not limited thereto. The second conductive line 4 can be based on... Figure 3 The same design principle shown also ensures that the length of each second conductive wire 4 is equal. The first conductive wire 3 and the second conductive wire 4 may overlap, but they are not electrically conductive to each other. The first conductive wire 3 and the second conductive wire 4 can be respectively set in different conductive layers.

[0051] Optionally, the line widths of the multiple first conductive lines 3 are equal. Optionally, the line widths of the multiple second conductive lines 4 are equal. Preferably, the line widths of the first conductive lines 3 and the second conductive lines 4 are equal. This can further reduce the pixel differences caused by IR voltage drop issues.

[0052] In one embodiment, the first side and the second side of the first display area 10 can be two opposite sides along the first direction X. Optionally, as... Figure 1 As shown, the first direction X is parallel to the row arrangement direction of the array formed by the plurality of first pixels 1. The row arrangement direction of the array formed by the plurality of first pixels 1 can be parallel to the edge of the display panel, but the present invention is not limited thereto.

[0053] This invention improves the coupling phenomenon between different colors caused by the photoelectric characteristics of the thin-film transistor (TFT) driving circuit by employing a cross-wiring method between the pixel driving circuit and individual pixel units in the sub-screen area. Designing the transparent wires from the TFT driving circuit to the pixel units with equal lengths improves the IR voltage drop problem in the transparent area, significantly eliminates the display difference between the sub-screen area and the transition area, enhances the algorithmic ability to compensate for and eliminate Mura after detection, and improves the integrated display effect of the main screen and sub-screen of the display panel.

[0054] Please see Figure 6 , Figure 6 This is a schematic diagram of a display device according to an embodiment of the present invention. The display device 200 includes a display panel 100 as described in any of the preceding embodiments. The display device 200 may further include a photosensitive element 30, which is disposed below the first display area 10 of the display panel 100. The photosensitive element 30 may be an under-display camera.

[0055] The display device described in this invention can be various electronic devices such as smartphones, tablets, televisions, monitors, vehicle displays, and navigation devices.

[0056] The display panel and display device of the present invention can reduce the coupling phenomenon between different colors caused by the photoelectric characteristics of the driving circuit by changing the wiring method between the first driving circuit used to drive the first display area pixel and the first pixel, thereby making the surrounding environment of the driving circuits driving different columns of first pixels consistent, thereby reducing the display unevenness caused by the brightness difference of the first display area and improving the overall display effect of the display device.

[0057] The present invention has been described by the above-described embodiments; however, these embodiments are merely examples for implementing the present invention. Furthermore, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any modifications and refinements made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A display panel having a first display area and a second display area, wherein the light transmittance of the first display area is higher than the light transmittance of the second display area; characterized in that... The display panel includes: A plurality of first pixels are disposed within the first display area, the plurality of first pixels including a plurality of odd-numbered pixels and a plurality of even-numbered pixels arranged at intervals along a first direction; and A plurality of first driving circuits are disposed within the second display area. The plurality of first driving circuits include a plurality of first-side driving circuits located on a first side of the first display area and a plurality of second-side driving circuits located on a second side of the first display area. The first-side driving circuits are connected to corresponding odd-numbered pixels via first conductive lines and are used to drive the odd-numbered pixels accordingly. The second-side driving circuits are connected to corresponding even-numbered pixels via second conductive lines and are used to drive the even-numbered pixels accordingly. The plurality of odd-numbered pixels and the plurality of even-numbered pixels are interconnected with the corresponding first driving circuits on both sides of the first display area by a cross-wiring method. The plurality of first conductive lines corresponding to the plurality of odd-numbered pixels extend toward the first side of the first display area, and the plurality of second conductive lines corresponding to the plurality of even-numbered pixels extend toward the second side of the first display area. The plurality of first conductive lines and the plurality of second conductive lines overlap, and the overlapping parts are separated by an insulating layer.

2. The display panel as described in claim 1, characterized in that, The lengths of the multiple first conductive lines are equal; or, the lengths of the multiple second conductive lines are equal.

3. The display panel as described in claim 1, characterized in that, The length of the first conductive line is equal to the length of the second conductive line.

4. The display panel as described in claim 1, characterized in that, Each first pixel includes a sub-pixel; or, each first pixel includes multiple sub-pixels of the same color, the anodized sub-pixels of the same color being interconnected.

5. The display panel as described in claim 1, characterized in that, The second display area includes a transition area and a third display area. The transition area is adjacent to the first display area and is located between the first display area and the third display area. The plurality of first driving circuits are disposed in the transition area.

6. The display panel as described in claim 1, characterized in that, The first side and the second side of the first display area are two opposite sides along the first direction.

7. The display panel as described in claim 1, characterized in that, The first conductive line and the second conductive line are respectively straight lines, broken lines, or serpentine lines.

8. The display panel as described in claim 1, characterized in that, The line widths of the multiple first conductive lines are equal; or, the line widths of the multiple second conductive lines are equal.

9. The display panel as claimed in claim 1, characterized in that, The line width of the first conductive line is equal to the line width of the second conductive line.

10. The display panel as claimed in claim 1, characterized in that, Both the first conductive wire and the second conductive wire are transparent wires.

11. A display device, characterized in that... Includes the display panel as described in any one of claims 1-10.

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