Patent ID: 12191260

In the figures:

1—display panel;10—substrate;11—first shielding layer;111—first shielding unit;112—second shielding unit;113—first connecting part;1131—first subsection;1132—second subsection;114—second connecting part;1141—third subsection;1142—fourth subsection;115—third connecting part;116—fourth connecting part;117—fifth connecting part;118—sixth connecting part;119—seventh connecting part;12—active layer;121—channel region;13—insulating layer;14—buffer layer;15—scan line;16—first insulating layer;17—gate layer;171—gate;172—first plate;18—second insulating layer;19—first metal layer;191—second plate;20—third insulating layer;21—second metal layer;211—source and drain;22—first planarization layer;23—second planarization layer;2—display apparatus;3—photosensitive module.

DETAILED DESCRIPTION

Features and exemplary embodiments of various aspects of the present application are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating examples of the present application.

It should be noted that, in the present application, relational terms, such as first and second, are used merely to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any actual such relationships or orders of these entities or operations. Moreover, the terms “comprise”, “include”, or any other variants thereof, are intended to represent a non-exclusive inclusion, such that a process, method, article or device including a series of elements includes not only those elements, but also other elements that are not explicitly listed or elements inherent to such a process, method, article or device. Without more constraints, the elements following an expression “comprise/include . . . ” do not exclude the existence of additional identical elements in the process, method, article or device that includes the elements.

In the related art, a display apparatus includes a display panel and a photosensitive module. The photosensitive module needs to receive lights to work normally. The photosensitive module includes a camera module for photography and an optical fingerprint identification module for fingerprint identification, and the like. Therefore, the function of the display apparatus is increased, the use interest of the display apparatus is enhanced, and the needs of the user is met. One way of integrating the photosensitive module is to integrate the photosensitive module below the display panel, so as to prevent the integration of the photosensitive module from affecting the display area of the display panel. Specifically, the display panel includes a first display region and a second display region, and the light transmittance of the second display region is greater than the light transmittance of the first display region. The photosensitive module is integrated on the side of the display panel away from the light-emitting surface, and is opposite to the second display region. Therefore, the working effect of the photosensitive module is better, and at the same time, the second display region can display, so as to maintain the display area of the display panel and improve the user experience.

The display panel in the display apparatus includes an array substrate and light-emitting units that emit light when driven by the array substrate. The array substrate includes a substrate and a driving circuit layer formed on the substrate. The driving circuit layer is used to drive the light-emitting units to emit light. During the use of the display panel, the substrate will accumulate charges under the action of the electric field. The electric field includes the external electric field, such as static electricity in the environment, or the electric field of the driving circuit layer itself. The performance of the driving transistors in the driving circuit layer on the substrate may be affected by the charges accumulated in the substrate. Therefore, the driving transistors will be abnormal when driving the light-emitting units to emit light, which in turn will cause appearance of the display afterimage on the display panel, and affect the display quality of the display panel.

In order to better understand the present application, the display panel and the display apparatus of the embodiments of the present application will be described in detail below with reference toFIG.1toFIG.19.

Referring toFIGS.1to3, an embodiment of the present application provides a display panel1including a first display region AA1and a second display region AA2. The display panel1includes a substrate10, a first shielding layer11and a driving circuit layer. The first shielding layer11is located on a side of the substrate10, and the first shielding layer11includes a plurality of first shielding units111located in the first display region AA1and a plurality of second shielding units112located in the second display region AA2. At least a portion of adjacent first shielding units111are connected through first connecting parts113, and a portion of adjacent second shielding units112are connected through second connecting parts114. The driving circuit layer is located on a side of the first shielding layer11away from the substrate10, the driving circuit layer includes a plurality of driving circuits, and each driving circuit includes a driving transistor T. Here, first shielding units111of the plurality of first shielding units111and second shielding units112of the plurality of second shielding units112are in one-to-one correspondence with driving transistors T, and orthographic projections of channel regions121of active layers12of the driving transistors T on the first shielding layer11are located in the first shielding units111and the second shielding units112.

In the display panel1provided by the present application, the first shielding layer11is arranged between the substrate10and the driving circuit layer, and the first shielding layer11is patterned to include the plurality of first shielding units111located in the first display region AA1and the plurality of second shielding units112located in the second display region AA2. At least a portion of the adjacent first shielding units111are connected through the first connecting parts113, and a portion of the adjacent second shielding units112are connected through the second connecting parts114. Further, the orthographic projections of the channel regions121of the active layers12of the driving transistors T on the first shielding layer11are located in the first shielding units111and the second shielding units112. Therefore, the channel regions of the active layers12of the driving transistors T located in the first display region AA1can be shielded by the first shielding units111, so that the driving transistors T located in the first display region AA1in the drive circuit layer may be prevented from being interfered by the electric field, which otherwise will cause the direct threshold voltages of the driving transistors T located in the first display region AA1to shift, and affect the display effect of the first display region AA1. Further, the channel regions121of the active layers12of the driving transistors T located in the second display region AA2can be shielded by the second shielding units112, so that the driving transistors T located in the second display region AA2in the drive circuit layer may be prevented from being interfered by the electric field, which otherwise will cause the direct threshold voltages of the driving transistors T located in the second display region AA2to shift, and affect the display effect of the second display region AA2. That is, the shielding effect of the first shielding layer11can effectively prevent the driving transistors T from being interfered by the electric field in the substrate10, such that the display effect of the display panel1may be improved and the occurrence of poor display may be prevented. Further, in the second display region AA2, only a portion of the adjacent second shielding units112are connected by the second connecting parts114, and a portion of the adjacent second shielding units112are not provided with the second connecting parts114, so that the influence of the second connecting parts114on the light transmittance of the second display region AA2may be reduced. Therefore, the light transmittance of the second display region AA2may be improved, and the photosensitive module opposite to the second display region AA2can work better.

In a possible implementation, the substrate10may be made of polymer materials such as glass, polyimide (PI), polycarbonate (PC), polyethersulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyarylate (PAR) or glass fiber reinforced plastic (FRP). The substrate10may be transparent, translucent or opaque. The substrate10in the embodiment of the present application may also be a flexible substrate, which is formed of a polymer with a relatively thin thickness, such as polyimide. A buffer layer140may be disposed on the substrate, and the buffer layer140may include a multilayer inorganic and organic layer stack structure to block oxygen and moisture, prevent moisture or impurities from diffusing through the substrate, and provide a flat surface for the preparation of subsequent film layers, thereby facilitating the preparation of subsequent film layers.

In a possible implementation, the display panel1further includes an insulating layer13formed between the first shielding layer11and the driving circuit layer, so as to achieve mutual insulation between the first shielding layer11and the driving circuit layer.

In a possible implementation, the driving circuit layer also includes other transistors other than the driving transistors T and devices such as capacitors. Specifically, the driving circuit layer includes a first insulating layer16, a gate layer17, a second insulating layer18, a first metal layer19, the third insulating layer20, the second metal layer21, the first planarization layer22, the second planarization layer23, and the like. These layers are located on the side of the active layer12away from the substrate10and are sequentially stacked along the direction away from the substrate10. Here, the first insulating layer16is used to insulate the gate layer17and the active layer13. The gate layer17includes the gate171of the transistor and the first plate172of the capacitor. The first metal layer19includes the second plate191of the capacitor. The second metal layer21includes the source and drain211of the transistor. The materials of the gate layer17and the first metal layer19are metal such as molybdenum. In the direction away from the substrate10, the second metal layer21may include a first titanium metal layer, an aluminum metal layer and a second titanium metal layer that are stacked; or, the second metal layer21may include a molybdenum metal layer. The materials of the first planarization layer22and the second planarization layer23can be selected from organic materials, and the surfaces of the first planarization layer22and the second planarization layer23facing away from the substrate10are flat surfaces, thereby facilitating the preparation of subsequent film layers.

It can be understood that, continue to refer toFIG.2, the channel region121of the active layer12of the driving transistor T is a portion of the active layer12of the driving transistor T overlapped with the gate171of the driving transistor T in the direction perpendicular to the substrate10. The active layer12also includes source-drain bonding regions located on both sides of the channel region121.

In a possible implementation, the material of the first shielding layer11includes molybdenum. Specifically, the material of the first shielding units111, the second shielding units112, the first connecting parts113and the second connecting parts114can be molybdenum (Mo). The conductivity of molybdenum is good, and the single molybdenum metal layer has lower resistance, which can improve the export speed of the electric field, so that the shielding effect of the first shielding layer11is better. Further, the first shielding layer11uses only one material, which can reduce the preparation process.

In another possible implementation, the material of the first shielding units111includes molybdenum; each of the second shielding units112includes a silicon material layer, a silicon dioxide material layer and a molybdenum metal layer sequentially arranged along the direction away from the substrate10.

In the above implementations, the material of the first shielding units111and the first connecting parts113can be molybdenum. The conductivity of molybdenum is good, and the first shielding units111and the first connecting parts113are made of single molybdenum metal layer, which has low resistance and can improve the export speed of the electric field. Therefore, the shielding effect of the first shielding units111are better. The second shielding units112and the second connecting parts114may each include a silicon material layer, a silicon dioxide material layer and a molybdenum metal layer that are stacked. Here, the silicon material layer is located on the side of the silicon dioxide material layer close to the substrate10, and the molybdenum metal layer is located on the side of the silicon dioxide material layer away from the substrate10. That is, the photosensitive module is located on the side of the silicon material layer away from the molybdenum material layer. The silicon material layer may be single crystal silicon and amorphous silicon. The single crystal silicon is gray-black, and the amorphous silicon is black, so the single crystal silicon and the amorphous silicon have excellent light absorption ability. Therefore, the silicon material layer is arranged on the side of the molybdenum metal layer close to the substrate, which can prevent the light shining on the side of the molybdenum metal layer towards the silicon metal layer from being reflected by the molybdenum metal layer into the photosensitive module. Thus, the interference to the photosensitive module may be avoided, and the photosensitive module can work better. At the same time, due to the poor electron transport ability of the silicon material layer, the silicon dioxide material layer is arranged between the silicon material layer and the molybdenum metal layer to insulate the silicon material layer and the molybdenum metal layer. Therefore, the transport ability of the molybdenum metal layer can be prevented from being affected by the direct contact between the silicon material layer and the molybdenum metal layer, so as to ensure the export speed of the electric field of the molybdenum metal layer and make the shielding effect of the second shielding units112better.

In a possible implementation, as shown inFIG.3, each of the first shielding units111is connected with N first connecting parts113, and at least one of the second shielding units112is connected with n second connecting parts114, wherein n<N.

In the above implementations, the number of the second connecting parts114connected to the at least one of the second shielding units112is smaller than the number of the first connecting parts113connected to each of the first shielding units111. That is, in the same area of the first display region AA1and the second display region AA2, the area of the orthographic projections of the first connecting parts113on the substrate is larger than the area of the orthographic projections of the second connecting parts114on the substrate. Therefore, the light transmittance of the second display region AA2is greater than the light transmittance of the first display region AA1. For example, inFIG.3, each of the first shielding units111is connected with four first connecting parts113, that is, N=4; at least a portion of the second shielding units are connected with one to three second connection parts114, that is, n=1˜3, and n is an integer. In the above implementations, by reducing the number of the second connecting parts114connected to the at least one of the second shielding units112, the number of the second connecting parts114in the second display region AA2is reduced, so that the light transmittance of the second display region AA2is higher. At the same time, the number of the first connecting parts113connected to the first shielding units111is maintained, so that more adjacent first shielding units111are connected in parallel, thereby helping to reduce impedance. Thus, the first shielding units111has faster charge conduction speed and better electrostatic shielding effect.

In a possible implementation, the distribution density of the second connecting parts114gradually decreases from a side close to the first display region AA1to a side away from the first display region AA1. As shown inFIG.4, there are three regions. Here, the c region is located on the side close to the first display region AA1relative to the a region, the b region is located between the a region and the c region. The number of the second connecting parts114connected to each second shielding unit112in the a area is one, the number of the second connecting parts114connected to each second shielding unit112in the b area is two, and the number of the second connecting parts114connected to each second shielding unit112in the c area is three. The distribution density of the second connecting parts114in the a region is smaller than the distribution density of the second connecting parts114in the b region, and the distribution density of the second connecting parts114in the b region is smaller than the distribution density of the second connecting parts114in the c region. Therefore, the light transmittance of the second display region AA2gradually increases from the side close to the first display region AA1to the center of the second display region AA2. Under the condition that the number of the second connecting parts114in the second display region AA2is guaranteed to be constant, the position with high light transmittance is concentrated in the center of the second display region AA2by adjusting the distribution density of the second connecting parts114at each position, and the photosensitive region of the photosensitive module is opposite to the center of the second display region AA2, thereby achieving better photosensitive effect.

In a possible implementation, the second shielding unit112is connected with n second connecting parts114, and n can be zero. That is, the second shielding unit112can exist independently, not connected to the adjacent second shielding unit112, and can also play the role of electrostatic shielding.

In a possible implementation, as shown inFIG.5, the first shielding units111are arranged in rows and columns, adjacent first shielding units111along a row direction x are electrically connected through the first connecting parts113, and adjacent first shielding units111along a column direction y are electrically connected through the first connecting parts113; the second shielding units112are arranged in rows and columns, a portion of adjacent second shielding units112along a row direction x are connected through the second connecting parts114, and a portion of adjacent second shielding units112in a column direction y are electrically connected through the second connecting parts114.

In the above implementations, the first shielding units111and the second shielding units112are all arranged in rows and columns. The adjacent first shielding units111along the row direction x and the adjacent first shielding units111along the column direction y are all electrically connected through the first connecting parts113, so that each first shielding unit111is connected to four first connecting parts113. Only a portion of adjacent second shielding units112along a row direction x and a portion of adjacent second shielding units112in a column direction y are connected through the second connecting parts114, so that the number of the second connecting parts connected to a portion of the second shielding units112is less than four. Therefore, the number of the second connecting parts114in the second display region AA2is reduced, and the light transmittance of the second display region AA2is higher. At the same time, the number of the first connecting parts113connected to the first shielding units111is maintained, so that more adjacent first shielding units111are connected in parallel, thereby helping to reduce impedance. Thus, the first shielding units111has faster charge conduction speed and better electrostatic shielding effect.

In a possible implementation, as shown inFIG.6, the second shielding units112are arranged in rows and columns, and adjacent second shielding units112in each row are electrically connected through the second connecting parts114, and wherein the second display region AA2includes a plurality of first preset columns L1and a plurality of second preset columns L2, adjacent second shielding units112in the first preset columns L1are electrically connected through the second connecting parts114, and adjacent second shielding units112in the second preset columns L2have first preset gaps g1.

In the above implementations, the number of the second connecting parts114used for connecting the adjacent second shielding units112in the column direction y in the second preset column L2is reduced, and the second shielding units112in the second preset column L2are all electrically connected to the second shielding units112in the adjacent first preset column L1through the second connecting parts114. Therefore, the number of the second connecting parts114in the second display region AA2is reduced, and the light transmittance of the second display region AA2is higher.

In a possible implementation, as shown inFIG.7, the second display region AA2includes a first preset column group L3containing at least one of the first preset columns L1and a second preset column group L4containing at least one of the second preset columns L2, and the first preset column group L3and the second preset column group L4are alternately arranged.

In the above implementations, the first preset column group L3may include one or more first preset columns L1, and the second preset column group L4may include one or more second preset columns L2. The number of the first preset columns L1in the first preset column group L3and the number of the second preset columns L2in the second preset column group L4may be the same or different. The first preset column group L3and the second preset column group L4are alternately arranged. The number of the second connecting parts114in the second preset column L2in the second preset column group L4is reduced, and the number of the second connecting parts114in the second display region AA2is reduced. Therefore, the light transmittance of the second display region AA2is higher. The reduction of the number of the second connecting parts114in the second preset column group L4will increase the light transmittance of the portion of the second display region AA2corresponding to the second preset column group L4, but at the same time, there will be a certain increase in transport resistance. The number of the second connecting parts114in the first preset column group L3is larger than the number of the second connecting parts114in the second preset column group LA. Therefore, the light transmittance of the portion of the second display region AA2corresponding to the first preset column group L3is low, but the transport resistance is also reduced. In this embodiment, the first preset column group L3and the second preset column group L4are alternately arranged, so that the light transmittance of the second display region AA2may be uniformly distributed, and the transport resistance may be evenly distributed.

In a possible implementation, as shown inFIG.8, the second shielding units112are arranged in rows and columns, the second display region AA2includes a plurality of first preset rows H1and a plurality of second preset rows H2, at least a portion of adjacent second shielding units112in the first preset rows H1have second preset gaps g2, and adjacent second shielding units112in the second preset rows H2are electrically connected through the second connecting parts114; the second display region AA2includes a plurality of first preset columns L1and a plurality of second preset columns L2, adjacent second shielding units112in the first preset columns L1are electrically connected through the second connecting parts114, and adjacent second shielding units112in the second preset columns L2have first preset gaps g1.

In the above implementations, the number of the second connecting parts114used for connecting the adjacent second shielding units112in the row direction x in the first preset row H1is reduced. At least a portion of the second shielding units112in the first preset row H1are only electrically connected to the second shield units112in the adjacent second preset row H2through the second connecting parts114. At the same time, the number of the second connecting parts114used for connecting the adjacent second shielding units112in the column direction y in the second preset column L2is reduced. Therefore, a portion of the second shielding units112in the second preset column L2are only connected to the adjacent second shielding units112in the row direction x. That is, a portion of the second shielding units112in the second preset column L2are electrically connected to the second shielding units112in the adjacent first preset column L1through the second connecting parts114. In the above implementations, the number of the second connecting parts114between the adjacent second shielding units112in the column direction y is reduced, which can further improve the light transmittance of the second display region AA2. At the same time, the light transmission regions corresponding to the first preset gaps g1and the second preset gaps g2are more uniformly distributed, so that the light transmission of the second display region AA2is more uniform.

In a possible implementation, as shown inFIG.9, the second display region AA2includes a first preset row group H3containing at least one of the first preset rows H1and a second preset row group H4containing at least one of the second preset rows H2, and the first preset row group H3and the second preset row group H4are alternately arranged.

The second display region includes a first preset column group L3containing at least one of the first preset columns L1and a second preset column group L4containing at least one of the second preset columns L2, and the first preset column group L3and the second preset column group L4are alternately arranged.

In the above implementations, the first preset row group H3may include one or more first preset rows H1, and the second preset row group H4may include one or more second preset rows H2. The number of the first preset rows H1in the first preset row group H3and the number of the second preset rows H2in the second preset row group H4may be the same or different. The first preset row group H3and the second preset row group H4are alternately arranged. Meanwhile, the first preset column group L3may include one or more first preset columns L1, and the second preset column group L4may include one or more second preset columns L2. The number of the first preset columns L1in the first preset column group L3and the number of the second preset columns L2in the second preset column group L4may be the same or different. The first preset column group L3and the second preset column group L4are alternately arranged. In the above implementations, the number of the second connecting parts114in the first preset row H1in the first preset row group H3is reduced, and the number of the second connecting parts114in the second preset column L2in the second preset column group L4is reduced. Therefore, the number of the second connecting parts114in the second display region AA2is further reduced, so that the light transmittance of the second display region AA2is higher.

In a possible implementation, as shown inFIG.10, the second display region AA2further includes a plurality of third preset columns L5, a portion of adjacent second shielding units112in the third preset columns L5are electrically connected through the second connecting parts114, and a portion of adjacent second shielding units112in the third preset columns L5have first preset gaps g1. The second display region AA2further includes a third preset column group L6containing at least one of the third preset columns L5, and the first preset column group L3, the second preset column group L4and the third preset column group L6are arranged in sequence.

In the above implementations, the third preset columns in which a portion of adjacent second shielding units112in the column direction y are electrically connected through the second connecting parts114and a portion of adjacent second shielding units112in the column direction y have first preset gaps g1are added. Therefore, another way to adjust the light transmittance of the second display region AA2is added, so that the light transmittance of the second display region AA2may be further adjusted.

In a possible implementation, as shown inFIG.11, each of the first shielding units111is connected with N first connecting parts113, and at least one of the second shielding units112is connected with n second connecting parts114, wherein n=N.

In the above implementations, the number of the first connecting parts113connected to each first shielding unit111is the same as the number of the second connecting parts114connected to each second shielding unit112. Therefore, it is convenient to synchronously pattern the portions of the first shielding layer11located in the first display region AA1and in the second display region AA2, which makes the manufacture more convenient. At the same time, on the basis of ensuring that the second shielding units112in the second display region AA2are all electrically connected, the number of the second connecting parts114between adjacent shielding units112is reduced, thereby improving the light transmittance of the second display region AA2.

In the above implementations, N may be 1, 2, 3 or 4.

In a possible implementation, the first shielding units111are connected to a first fixed electric potential, and the second shielding units112are connected to a second fixed electric potential, wherein the first fixed electric potential and the second fixed electric potential may be the same or different. The first fixed electric potential and the second fixed electric potential are respectively used to provide electric potentials to the first shielding units111and the second shielding units112. On the one hand, the first shielding units111and the second shielding units112can realize the shielding effect on the electric field. On the other hand, the resistance in the driving circuit layer may be reduced by the first shielding units111and the second shielding units112.

In a possible implementation, as shown inFIG.12, the first fixed electric potential and the second fixed electric potential are a same electric potential, and at least a portion of adjacent first shielding units111and second shielding units112are connected through third connecting parts115.

In the above implementations, the first shielding units111and the second shielding units112are connected through the third connecting parts115, so that the first shielding units111and the second shielding units112are connected to the same potential. The third connecting parts115may be one or more. The third connecting parts115can be disposed in the first display region AA1or in the second display region AA2, or a portion of the third connecting parts115can be disposed in the first display region AA1and a portion of the third connecting parts115can be disposed in the second display region AA2. Under a condition that the third connecting parts115are disposed in the first display region AA1, the influence on the light transmittance of the second display region AA2can be reduced, which helps to ensure the effect of the photosensitive module. Under a condition that there are multiple third connecting parts115, at least a portion of the first shielding units111and the second shielding units112are connected in parallel, thereby reducing the resistance of the first shielding layer11.

In another possible implementation, each of the first shielding units111and each of the second shielding units112are insulated from each other, the first fixed electric potential is greater than the second fixed electric potential, and wherein the driving circuit layer further includes a first power supply line PVDD and a reset signal line Vref, the first power supply line PVDD provides the first fixed electric potential, and the reset signal line Vref provides the second fixed electric potential.

In the above implementations, the first shielding units111and the second shielding units112are respectively connected to different fixed electric potentials. Specifically, the first shielding units111are connected to the first power supply line PVDD, and the second shielding units112are connected to the reset signal line Vref.

The area of the first display region AA1in the display panel1is larger than the area of the second display region AA2, so the total area of the first shielding units111located in the first display region AA1is larger than the total area of the second shielding units112located in the second display region AA2. In the driving circuit layer, the first power supply line PVDD and the reset signal line Vref are both affected by the IR-drop caused by their own resistances. The electric potential of the first power supply line PVDD is relatively large and is greatly affected by the IR-drop. The electric potential of the reset signal line Vref is relatively small and is less affected by the IR-drop. By connecting the first shielding units111with a larger total area to the first power line PVDD, the first shielding units111with a larger total area can be used to improve the IR-drop of the power supply line PVDD. By connecting the second shielding units112with a smaller total area to the reset signal line Vref, the second shielding units112with a smaller total area can be used to improve the IR-drop of the reset signal line Vref. Therefore, the first shielding layer11may be used to improve the IR-drop of some signal lines in the driving circuit layer (for example, the first power supply line PVDD, the reset signal line Vref, etc.) while electrostatically shielding the driving circuits of the display panel1, so that the driving circuits may achieve better performance.

In a possible implementation, the signal lines in the driving circuit layer may further include scan lines14, and at least a portion of the scan lines14are located in the gate layer. As shown inFIGS.13and14, a portion of the first connecting parts113include first subsections1131and second subsections1132located between the first subsections1131and the first shielding units111. Line widths of the first subsections1131in a direction perpendicular to the extending direction of the first connecting parts113are smaller than line widths of the second subsections1132in a direction perpendicular to the extending direction of the first connecting parts113.

In the above implementations, the line widths of the first subsections1131in the first connecting parts113may be set as relatively narrow. Therefore, a portion of the first subsections1131overlapped with the active layer12can be prevented from interfering the active layer12(for example, the nodes in the active layer12that are directly connected to the driving transistors, or the floating nodes, etc.), and thus the interference to the driving circuits may be avoided. The second subsections1132may overlap with the sources and drains of the driving transistors. Since the nodes corresponding to the sources and drains are relatively stable, these nodes are not easily interfered by the second subsections1132. Therefore, the line widths of the second subsections1132in the first connecting parts113may be set as relatively wide, so as to reduce the resistances, improve the electrostatic discharge speed of the first shielding layer11, and at the same time improve the effect of improving the IR-drop of some signal lines.

In a possible implementation, as shown inFIGS.13and14, a portion of the second connecting parts114include third subsections1141and fourth subsections1142. Line widths of the third subsections1141in a direction perpendicular to the extending direction of the second connecting parts114are smaller than line widths of the fourth subsections1142in a direction perpendicular to the extending direction of the second connecting parts114. The fourth subsections1142and the second subsections1132overlap with the scan lines in a direction perpendicular to the substrate10.

In the above implementations, the line widths of the third subsections1141in the second connecting parts114may be set as relatively narrow. Therefore, a portion of the third subsections1141overlapped with the active layer12can be prevented from interfering the active layer12(for example, the nodes in the active layer12that are directly connected to the driving transistors, or the floating nodes, etc.), and thus the interference to the driving circuits may be avoided. The fourth subsections1142may overlap with the sources and drains of the driving transistors. Since the nodes corresponding to the sources and drains are relatively stable, these nodes are not easily interfered by the fourth subsections1142. At the same time, the fourth subsections1142may overlap with the scan lines. The fourth subsections1142has less influence on the scan lines. Therefore, the line widths of the fourth subsections1142in the second connecting parts114may be set as relatively wide, so as to reduce the resistances, improve the electrostatic discharge speed of the second shielding units112, and at the same time improve the effect of improving the IR-drop of some signal lines.

In the above implementations, the second connecting parts114located between the adjacent first shielding units111in the column direction y or the adjacent second shielding units112in the column direction y include third subsections1141and fourth subsections1142.

In the above implementations, the line widths of the third subsections1141in the second connecting parts114may be set as relatively narrow. Therefore, a portion of the third subsections1141overlapped with the active layer12can be prevented from interfering the active layer12(for example, the nodes in the active layer12that are directly connected to the driving transistors, or the floating nodes, etc.), and thus the interference to the driving circuits may be avoided. The fourth subsections1142may overlap with the sources and drains of the driving transistors. Since the nodes corresponding to the sources and drains are relatively stable, these nodes are not easily interfered by the fourth subsections1142. Therefore, the line widths of the fourth subsections1142in the second connecting parts114may be set as relatively wide, so as to reduce the resistances, improve the electrostatic discharge speed of the first shielding layer11, and at the same time improve the effect of improving the IR-drop of some signal lines.

In a possible implementation, as shown inFIG.14, line widths d1of the first connecting parts113are smaller than minimum widths D1of the first shielding units111along a column direction y, and line widths d2of the second connecting parts114are smaller than minimum widths D2of the second shielding units112along the column direction y. The first shielding units111and the second shielding units112play the role of electrostatic shielding, and the orthographic projections of the active layers12of the driving transistors on the first shielding layer11are located in the first shielding units111and the second shielding units112. Therefore, the performance of the driving transistors is guaranteed. The first connecting parts113and the second connecting parts114mainly play the role of electrical connection. Therefore, by setting the widths of the first connecting parts113and the second connecting parts114to be relatively narrow, the light transmittance can be improved. Especially, the light transmittance of the second display region AA2can be improved, so that the photosensitive module opposite to the second display region AA2can work better.

In a possible implementation, as shown inFIG.15, the display panel further includes fourth connecting parts116, and the second shielding units112are arranged in rows and columns. A portion of adjacent second shielding units112along a row direction x are connected through the second connecting parts114, and the fourth connecting parts116connect the second shielding units112and the second connecting parts114along a column direction y.

In the above implementations, in the first shielding layer11, the adjacent second shielding units112in the row direction x are connected through the second connecting parts114, and the adjacent second shielding units112in the column direction y are connected with one second connecting part114through the fourth connecting part116. Therefore, the shape of the light-transmitting region in the second display region AA2can be further adjusted, and the regularity of the light-transmitting region can be broken, so as to improve the diffraction effect and ensure the working effect of the photosensitive module. For example, when the photosensitive module is a camera, the image quality of the camera can be improved.

In a possible implementation, as shown inFIG.16, the display panel further includes fifth connecting parts117, and the second shielding units112are arranged in rows and columns. A portion of adjacent second shielding units112along a row direction x are electrically connected through the second connecting parts114, and a portion of adjacent second connecting parts114along a column direction y are connected through the fifth connecting parts117.

In the above implementations, the adjacent second shielding units112along the row direction x are electrically connected through the second connecting parts114, and the adjacent second connecting parts114along the column direction y are connected through the fifth connecting parts117. Therefore, the shape of the light-transmitting region in the second display region AA2can be further adjusted, and the regularity of the light-transmitting region can be broken, so as to improve the diffraction effect and ensure the working effect of the photosensitive module. For example, when the photosensitive module is a camera, the image quality of the camera can be improved.

In a possible implementation, as shown inFIG.17, the display panel further includes sixth connecting parts118, and the first shielding units111are arranged in rows and columns. A portion of adjacent first shielding units111along a row direction x are electrically connected through the first connecting parts113, and a portion of adjacent first shielding units111along a column direction y are connected through the sixth connecting parts118.

In a possible implementation, as shown inFIG.18, the display panel further includes seventh connecting parts119, and the first shielding units111are arranged in rows and columns. A portion of adjacent first shielding units111along a row direction x are electrically connected through the first connecting parts113, and the seventh connecting parts119connect the first shielding units111and the first connecting parts113along a column direction y.

As shown inFIG.19, the present application also provides a display apparatus2, including any display panel1provided in the present application. The display apparatus2provided in the present application further includes a photosensitive module3disposed on a side of the display panel1away from a display surface and opposite to the second display region AA2. The photosensitive module3includes a fingerprint identification module or a camera module.

The display apparatus2may be a mobile terminal such as a mobile phone or a tablet, or may be a device such as a display device or a TV, which is not particularly limited in the present application. The first shielding layer in the display panel1of the display apparatus2can effectively prevent the driving transistors T from being interfered by the electric field in the substrate10, such that the display effect of the display panel1may be improved and the occurrence of poor display may be prevented. Further, in the second display region AA2, only a portion of the adjacent second shielding units112are connected by the second connecting parts114, and a portion of the adjacent second shielding units112are not provided with the second connecting parts114, so that the influence of the second connecting parts114on the light transmittance of the second display region AA2may be reduced. Therefore, the light transmittance of the second display region AA2may be improved, and the photosensitive module3opposite to the second display region AA2can work better.

The above embodiments of the present application do not exhaustively describe all the details and do not limit the present application to only the specific embodiments described. Obviously, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in the description to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and make modifications based on the present application. The present application is limited only by the claims, along with their full scope and equivalents.