Display substrate and display device

Abstract

Display substrate and display device. The display substrate (1) has a first side (S1) and a second side (S2) for display, and includes a base substrate (100) and a display region including a first display region (10) and a second display region (20), the first display region (10) including a plurality of pixel unit groups (P1), each of the plurality of pixel unit groups (P1) including a plurality of first pixel units (P0), each of the plurality of first pixel units (P0) including a display region including a pixel region (A11) and an opening region (A12), a plurality of first power supply lines (VDD1) located in the pixel region (A11), a hollow region (LS2) and and a shielding layer (LS) including a shielding region (LS1), wherein for one pixel unit group (P1), the aperture region (A12) of each first pixel unit (P0) at least locally overlaps the shielding region (LS1) of the shielding layer, the aperture region (A12) of at least one first pixel unit (P0) includes a first shielding connecting portion (SP1) that at least locally overlaps the shielding region (LS1) of the shielding layer (LS), and the shielding layer (LS) is connected to at least one first power supply line (VDD1) of the plurality of first power supply lines (VDD1) via the first shielding connecting portion (SP1). This display substrate can connect a DC signal to the shielding layer and prevent the shielding layer from being in a floating state without reducing pixel density.

Description

[Technical field]

[0001] This disclosure claims priority to Chinese Patent Application No. 202010623663.4, filed on June 30, 2020, the entire contents of which are incorporated herein by reference.

[0002] At least one embodiment of the present disclosure relates to a display substrate and a display device. [Background technology]

[0003] Based on the design of the under-screen camera, the display panel generally includes a high pixel density (Pixels Per Inch, PPI) area and a low PPI area. However, the light transmittance of the low PPI area of ​​a general display panel is low, which is disadvantageous for improving the display effect in the imaging area. Summary of the Invention [Means for solving the problem]

[0004] At least one embodiment of the present disclosure provides a display substrate having a first side for displaying and a second side opposite to the first side, the display substrate comprising: a base substrate; a display region disposed on the base substrate, the display region including a first display region and a second display region at least locally surrounding the first display region, the first display region allowing light from the first side of the display substrate to at least partially transmit to the second side of the display substrate for detection, the first display region including a plurality of pixel unit groups arranged at intervals, each of the plurality of pixel unit groups including a plurality of first pixel units, each of the plurality of first pixel units including a display region including a pixel region and an aperture region; a plurality of first power lines located in the pixel region, connected to the plurality of pixel unit groups, and configured to provide a first power supply voltage to the plurality of pixel unit groups; and a display region disposed on the base substrate. and a shielding layer located on a side of the first power lines closer to the base substrate, the shielding layer including a hollow region and a shielding region, wherein for one pixel unit group, the opening region of each of the first pixel units at least locally overlaps with the shielding region of the shielding layer, the opening region of the at least one first pixel unit includes a first shielding connection portion that at least locally overlaps with the shielding region of the shielding layer, and the shielding layer is connected to at least one first power line of the plurality of first power lines via the first shielding connection portion to receive the first power supply voltage, the plurality of first power lines are located on a side of the first shielding connection portion away from the base substrate, the shielding layer is located on a side of the first shielding connection portion closer to the base substrate, and the first shielding connection portion is located between the shielding layer and the plurality of first power lines.

[0005] For example, in a display substrate according to at least one embodiment of the present disclosure, the shielding layer is connected to the first shielding connection portion via a first through hole, and the first shielding connection portion is connected to the at least one first power line via a second through hole.

[0006] For example, in a display substrate according to at least one embodiment of the present disclosure, the display substrate further includes a first insulating layer, a second insulating layer, and a third insulating layer, the first insulating layer being located between the shielding layer and the first shielding connection portion, the second insulating layer being located between the first insulating layer and the first shielding connection portion, and the third insulating layer being located between the first shielding connection portion and the plurality of first power lines, or the second insulating layer being located between the first shielding connection portion and the plurality of first power lines, and the third insulating layer being located between the second insulating layer and the plurality of first power lines. and a first power line, the shielding layer being connected to the first shielding connection portion via a first through hole penetrating the first insulating layer, and the first shielding connection portion being connected to the at least one first power line via a second through hole penetrating the second insulating layer and a third insulating layer, or the shielding layer being connected to the first shielding connection portion via a first through hole penetrating the first insulating layer and the second insulating layer, and the first shielding connection portion being connected to the at least one first power line via a second through hole penetrating the third insulating layer.

[0007] For example, in a display substrate according to at least one embodiment of the present disclosure, an orthogonal projection of the first through hole on the base substrate does not overlap with an orthogonal projection of the second through hole on the base substrate, the first power line includes a protrusion, an orthogonal projection of the second through hole on the base substrate overlaps with an orthogonal projection of the protrusion on the base substrate, and an orthogonal projection of the first through hole on the base substrate overlaps with an orthogonal projection of the first power line on the base substrate.

[0008] For example, in a display substrate according to at least one embodiment of the present disclosure, adjacent pixel unit groups are connected via wiring, and the orthogonal projections of the multiple pixel unit groups on the base substrate and the orthogonal projections of the wiring on the base substrate are within the orthogonal projections of the shielding area of ​​the shielding layer on the base substrate.

[0009] For example, in a display substrate according to at least one embodiment of the present disclosure, the second display region includes a plurality of second pixel units arranged in an array and a plurality of second power lines, each of the plurality of second pixel units includes a pixel region and an opening region, the plurality of second power lines are connected to the plurality of second pixel units and configured to provide the plurality of second pixel units with a second power supply voltage that is the same as the first power supply voltage, and for one second pixel unit, the opening region of each of the second pixel units at least locally overlaps with the shielding region of the shielding layer, and the opening region of the at least one second pixel unit includes a second shielding connection portion that at least locally overlaps with the shielding region of the shielding layer.

[0010] For example, in a display substrate according to at least one embodiment of the present disclosure, the orthogonal projection of the second display region on the base substrate falls within the orthogonal projection of the shielding region of the shielding layer on the base substrate.

[0011] For example, in a display substrate according to at least one embodiment of the present disclosure, each of the plurality of first pixel units and the plurality of second pixel units includes a pixel driving circuit configured to drive the light emitting device to emit light, and a light emitting device.

[0012] For example, in a display substrate according to at least one embodiment of the present disclosure, the pixel driving circuit includes a driving transistor, a data write transistor, a compensation transistor, a first emission control transistor, a second emission control transistor, a first reset transistor, a second reset transistor, and a storage capacitor, active layers of the first reset transistor, the compensation transistor, the second emission control transistor, and the second reset transistor are located in a first semiconductor layer extending along a first direction, active layers of the data write transistor and the first emission control transistor are located in a second semiconductor layer extending along a second direction, the first semiconductor layer is connected to and integrally formed with the second semiconductor layer via an active layer of the driving transistor, the active layer of the driving transistor is located on a virtual line of the active layer of the first reset transistor in the first direction, the active layers of the compensation transistor and the data write transistor are respectively located on both sides of the active layer of the driving transistor, and the active layer of the driving transistor is close to the active layer of the first reset transistor. a gate of the data write transistor extending along the second direction and juxtaposed with a gate of the first light-emitting control transistor in the first direction, a gate of the first reset transistor extending along the second direction, a gate of the data write transistor extending along the second direction and juxtaposed with a gate of the first light-emitting control transistor in the first direction, a gate of the first reset transistor extending along the second direction and juxtaposed with a gate of the driving transistor in the first direction, and a gate of the driving transistor extending along the second direction and juxtaposed with a gate of the driving transistor in the first direction, and a gate of the driving transistor extending along the second direction and juxtaposed with a gate of the driving transistor in the first direction.

[0013] For example, a display substrate according to at least one embodiment of the present disclosure further includes a gate line, a light emission control signal line, a first reset signal line and a second reset signal line extending along the second direction, a gate of the first reset transistor is connected to and integrally formed with the first reset signal line, a second gate of the compensation transistor and a gate of the data writing transistor are connected to and integrally formed with the gate line, a gate of the second light emission control transistor and a gate of the first light emission control transistor are connected to and integrally formed with the light emission control signal line, and a gate of the second reset transistor is connected to and integrally formed with the second reset signal line.

[0014] For example, a display substrate according to at least one embodiment of the present disclosure further includes a data line connected to an active layer of the data writing transistor and configured to provide a data signal, wherein the orthogonal projection of the first power supply line on the base substrate at least locally overlaps with the orthogonal projection of the active layer of the first reset transistor on the base substrate and the orthogonal projection of the active layer of the driving transistor on the base substrate, and the orthogonal projection of the data line on the base substrate is located on a side of the orthogonal projection of the second semiconductor layer on the base substrate that is away from the orthogonal projection of the first power supply line on the base substrate.

[0015] For example, in a display substrate according to at least one embodiment of the present disclosure, the pixel driving circuit further includes a first via electrode connected to an active layer of the second light-emitting control transistor, an active layer of the second reset transistor, and a first pole of the light-emitting device via a through hole, and the orthogonal projection of the first via electrode on the base substrate is located between the orthogonal projection of the active layer of the second reset transistor on the base substrate and the orthogonal projection of the active layer of the driving transistor on the base substrate.

[0016] For example, in a display substrate according to at least one embodiment of the present disclosure, for each of the multiple second pixel units, the orthogonal projection of the second shielding connection portion on the base substrate is located between the orthogonal projection of the active layer of the second reset transistor on the base substrate and the orthogonal projection of the second power line on the base substrate, and at least locally overlaps with the orthogonal projection of the second power line on the base substrate.

[0017] For example, in a display substrate according to at least one embodiment of the present disclosure, for each pixel unit group, the first shielding connection part is located between two first pixel units adjacent to each other in the first direction in each pixel unit group.

[0018] For example, in a display substrate according to at least one embodiment of the present disclosure, the orthogonal projection of the first shielding connection portion on the base substrate is located between the orthogonal projection of the active layer of the second reset transistor on the base substrate and the orthogonal projection of the first power line on the base substrate, and at least locally overlaps with the orthogonal projection of the first power line on the base substrate.

[0019] For example, in a display substrate according to at least one embodiment of the present disclosure, the first shielding connection portions are located at both ends of each pixel unit group, and are connected to at least one of a plurality of first power lines corresponding to each of the pixel units.

[0020] For example, in a display substrate according to at least one embodiment of the present disclosure, the first shielding connection portion is located at one end of each pixel unit group, and is connected to at least one of a plurality of first power lines corresponding to the pixel unit group.

[0021] For example, a display substrate according to at least one embodiment of the present disclosure further includes a fourth insulating layer, a first conductive layer, a second conductive layer, and a third conductive layer, wherein the first conductive layer includes the gate line, the second conductive layer includes the second plate of the storage capacitance, and the third conductive layer includes the first power line, and in a direction perpendicular to the base substrate, the fourth insulating layer is located between the shielding layer and the active layer of the transistor, the first insulating layer is located between the active layer and the first conductive layer, the second insulating layer is located between the gate line and the second conductive layer, and the third insulating layer is located between the second plate of the storage capacitance and the third conductive layer.

[0022] For example, in a display substrate according to at least one embodiment of the present disclosure, the first shielding connection portion is located in the first conductive layer or the second conductive layer.

[0023] At least one embodiment of the present invention further provides a display device including a display substrate according to any embodiment of the present disclosure and a sensor, the sensor being provided on a second side of the display substrate and configured to receive light from a first side of the display substrate, and a orthogonal projection of the sensor on the base substrate at least locally overlaps with the first display area. [Brief description of the drawings]

[0024] In order to more clearly describe the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments are briefly introduced below. Obviously, the drawings in the following description do not limit the present disclosure, but are only related to some embodiments of the present disclosure. [Figure 1A] FIG. 1 is a schematic plan view of a display substrate according to at least one embodiment of the present disclosure. [Figure 1B] 1 is a schematic diagram of a locally enlarged view of a display substrate in accordance with at least one embodiment of the present disclosure. [Figure 1C] 1 is a schematic diagram of a locally enlarged view of a display substrate in accordance with at least another embodiment of the present disclosure; [Figure 1D] 1B is a schematic cross-sectional view taken along line B1-B2 shown in FIG. 1A. [Diagram 2]FIG. 4 is a schematic diagram of an arrangement of pixel units in a second display area according to at least one embodiment of the present disclosure. [Diagram 3] 2 is a schematic diagram of a first display area of ​​a display panel in accordance with at least one embodiment of the present disclosure. [Figure 4] 1 is a schematic diagram of a display substrate in accordance with at least one embodiment of the present disclosure. [Diagram 5] FIG. 2 is a schematic diagram of a pixel driving circuit in accordance with at least one embodiment of the present disclosure. [Figure 6A] 6 is a schematic diagram of a layered structure of the pixel driving circuit shown in FIG. 5. [Figure 6B] 6 is a schematic diagram of another laminated structure of the pixel driving circuit shown in FIG. 5. [Figure 7] FIG. 2 is a schematic cross-sectional view taken along line AA' in accordance with at least one embodiment of the present disclosure. [Figure 8] 6B is a plan view of a semiconductor pattern of the display substrate shown in FIG. 6A. [Figure 9] 6B is a plan view of a first conductive layer of the display substrate shown in FIG. 6A. [Figure 10] 6B is a plan view of a second conductive layer of the display substrate shown in FIG. 6A. [Figure 11] 6B is a plan view of a third conductive layer of the display substrate shown in FIG. 6A. FIG. [Figure 12A] FIG. 2 is a schematic diagram of an example of a display substrate in accordance with at least one embodiment of the present disclosure. [Figure 12B] 12B is a plan view of a shielding region LS1 of the shielding layer LS of the display substrate shown in FIG. 12A. [Figure 12C] 12B is a plan view of a semiconductor pattern of the display substrate shown in FIG. 12A. [Figure 12D] 12B is a plan view of a first conductive layer of the display substrate shown in FIG. 12A. [Figure 12E] 12B is a plan view of a second conductive layer of the display substrate shown in FIG. 12A. [Figure 12F] 12B is a plan view of a third conductive layer of the display substrate shown in FIG. 12A. [Figure 13A] FIG. 2 is a schematic diagram of an example of another display substrate in accordance with at least one embodiment of the present disclosure. [Figure 13B]13B is a plan view of a shielding region LS1 of the shielding layer LS of the display substrate shown in FIG. 13A. [Figure 13C] 13B is a plan view of a semiconductor pattern of the display substrate shown in FIG. 13A. [Figure 13D] 13B is a plan view of a first conductive layer of the display substrate shown in FIG. 13A. [Figure 13E] 13B is a plan view of a second conductive layer of the display substrate shown in FIG. 13A. [Figure 13F] 13B is a plan view of a third conductive layer of the display substrate shown in FIG. 13A. FIG. [Figure 14A] FIG. 2 is a schematic diagram of an example of another display substrate in accordance with at least one embodiment of the present disclosure. [Figure 14B] 14B is a plan view of a shielding region LS1 of the shielding layer LS of the display substrate shown in FIG. 14A. [Figure 14C] 14B is a plan view of a semiconductor pattern of the display substrate shown in FIG. 14A. [Figure 14D] 14B is a plan view of a first conductive layer of the display substrate shown in FIG. 14A. [Figure 14E] 14B is a plan view of a second conductive layer of the display substrate shown in FIG. 14A. [Figure 14F] 14B is a plan view of a third conductive layer of the display substrate shown in FIG. 14A. FIG. [Figure 15A] FIG. 2 is a schematic diagram of an example of another display substrate in accordance with at least one embodiment of the present disclosure. [Figure 15B] 15B is a plan view of a shielding region LS1 of the shielding layer LS of the display substrate shown in FIG. 15A. [Figure 15C] 15B is a plan view of a semiconductor pattern of the display substrate shown in FIG. 15A. [Figure 15D] 15B is a plan view of a first conductive layer of the display substrate shown in FIG. 15A. [Figure 15E] 15B is a plan view of a second conductive layer of the display substrate shown in FIG. 15A. [Figure 15F] 15B is a plan view of a third conductive layer of the display substrate shown in FIG. 15A. [Figure 16] FIG. 1 is a schematic diagram of a display device in accordance with at least one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] In order to more clearly describe the objectives, technical solutions and advantages of the embodiments of the present disclosure, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. It is obvious that the described embodiments are only some embodiments of the present disclosure, but not all embodiments. Based on the described embodiments of the present disclosure, all other embodiments that a person skilled in the art can obtain without creative labor are all included in the protection scope of the present disclosure.

[0026] Unless otherwise defined, technical or scientific terms used in this disclosure should have the ordinary meanings understood by those skilled in the art. The terms "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are merely used to distinguish different components. Similar terms such as "comprise" and "included" mean that the element or thing appearing before the term includes the element or thing listed after the term and their equivalents, but do not exclude other elements or things. Similar terms such as "connected" and "connected to each other" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper", "lower", "left", "right" and the like are merely used to indicate relative positional relationships, and when the absolute position of the described object is changed, the relative positional relationships may change accordingly.

[0027] OLED (organic light-emitting diode) display technology has strong competitiveness in displays due to its advantages such as wide viewing angle, high contrast, fast response, low power consumption, foldability, and flexibility. With the widespread development and deep application of OLED technology, the demand for display screens with relatively high screen ratios is becoming stronger. The front camera of under-screen camera technology is located below the screen, eliminating the notch area where the front camera is installed, improving the screen ratio and providing a better visual experience.

[0028] In order to allow more light to pass through the display panel and reach the front camera, it is necessary to reduce the PPI, i.e. the pixel density, of the transparent display area of ​​the screen, but there are many slits between the wiring of the pixel circuit and between the connecting lines of the signal lines between pixels. When light passes through these slits, it will cause diffraction and interference, so the brightness of the light when it reaches the camera will be uneven, resulting in glare (the brightness is too high in a certain area in the field of view, or the brightness changes excessively back and forth), which will reduce the visibility of objects, reduce the imaging quality of the camera, and easily cause visual fatigue.

[0029] Currently, one solution is to add a metal layer as a shielding layer to shield the pixel circuit and wiring position, and prevent light from passing through these slits and causing interference, but these metal layers are in a floating state, which causes interference with the pixel circuit signal and affects the display effect. Therefore, it is necessary to introduce a DC signal into these metal layers to stabilize the voltage. However, if a hole is directly drilled to connect to the pixel circuit, it requires space to place the connection hole, which increases the pixel size and reduces the screen resolution, while if the connection is made only from the end of the IC (Integrated chip), it causes a relatively large voltage drop in the wiring, which affects the display quality.

[0030] At least one embodiment of the present disclosure provides a display substrate having a first side for displaying and a second side opposite to the first side, the display substrate comprising: a base substrate; a display region disposed on the base substrate, the display region including a first display region and a second display region at least locally surrounding the first display region, the first display region allowing light from the first side of the display substrate to at least partially transmit to the second side of the display substrate for sensing, the first display region including a plurality of pixel unit groups arranged at intervals, each of the plurality of pixel unit groups including a plurality of first pixel units, each of the plurality of first pixel units including a display region including a pixel region and an aperture region; and a plurality of first power lines located in the pixel region, connected to the plurality of pixel unit groups and configured to provide a first power supply voltage to the plurality of pixel unit groups. and a shielding layer disposed on the base substrate, located on a side of the first power lines close to the base substrate, the shielding layer including a hollow region and a shielding region, wherein for one pixel unit group, the opening region of each first pixel unit at least locally overlaps with the shielding region of the shielding layer, the opening region of at least one first pixel unit includes a first shielding connection portion that at least locally overlaps with the shielding region of the shielding layer, and the shielding layer is connected to at least one first power line of the plurality of first power lines via the first shielding connection portion to receive a first power supply voltage, the plurality of first power lines are located on a side of the first shielding connection portion away from the base substrate, the shielding layer is located on a side of the first shielding connection portion close to the base substrate, and the first shielding connection portion is located between the shielding layer and the plurality of first power lines.

[0031] The display substrate according to the embodiment of the present disclosure prevents the shielding layer from being in a floating state by connecting a DC signal to the shielding layer, prevents interference with the pixel driving circuit caused by the signal transition of the shielding layer, and reduces the voltage drop of the first power line, thereby improving the display quality of the display panel, without reducing the pixel density.

[0032] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

[0033] FIG. 1A is a schematic plan view of a display substrate according to at least one embodiment of the present disclosure, FIG. 1B is a schematic enlarged local view of a display substrate according to at least one embodiment of the present disclosure, FIG. 1C is a schematic enlarged local view of a display substrate according to at least another embodiment of the present disclosure, and FIG. 1D is a schematic cross-sectional view along line B1-B2 in FIG. 1A.

[0034] For example, as shown in FIG. 1A, a display substrate 1 according to at least one embodiment of the present disclosure includes a base substrate 100 and a display region. The display region is disposed on the base substrate 100, and the display region includes a first display region 10 (e.g., a translucent display region) and a second display region 20 (e.g., a normal display region). The display substrate 1 may further include a peripheral region 30 surrounding (e.g., locally surrounding) the display region. The second display region 20 surrounding (e.g., locally surrounding) the first display region 10.

[0035] For example, the display substrate 1 according to at least one embodiment of the present disclosure may be a display substrate such as an organic light emitting diode (OLED) display substrate or a quantum dot light emitting diode (QLED) display substrate, but the embodiments of the present disclosure do not limit the specific type of the display substrate.

[0036] For example, as shown in FIG. 1D, the first display area 10 is a light-transmitting display area, i.e., light from a first side S1 (e.g., a display side) of the display substrate 1 is at least partially transmitted to a second side S2 (e.g., a non-display side) of the display substrate 1, i.e., light incident from the display side is transmitted through the first display area 10 to reach the non-display side of the display substrate 1. A sensor 192 may be further disposed on the second side S2 of the display substrate 1 to receive the transmitted light, thereby realizing a corresponding function (e.g., imaging, infrared sensing, distance sensing, etc.). For example, the sensor 192 is disposed on the second side S2 of the display substrate 1, and the orthogonal projection of the sensor 192 on the base substrate 100 is at least locally overlapped with the first display area 10, and is configured to receive and process the light from the first side S1 of the display substrate 1. The light from the first side S1 of the display substrate 1 may be collimated light along the normal direction (e.g., Z1 direction) of the display substrate 1, or may be non-collimated light.

[0037] For example, the sensor 192 may be an image sensor, an infrared sensor, a distance sensor, etc., and the sensor 192 may be realized in the form of, for example, a chip, etc. The sensor 192 is disposed on the second side S2 (the side away from the user) of the display substrate 1. The sensor 192 at least locally overlaps with the first display region 10 in the normal direction of the display surface of the display substrate.

[0038] For example, the sensor 192 may be an image sensor, which may be used to collect an image of the external environment facing the light collecting surface of the sensor 192, and may be, for example, a CMOS image sensor or a CCD image sensor. The sensor 192 may further be an infrared sensor, a distance sensor, etc. The sensor 192 may be realized as a camera of a mobile terminal such as a mobile phone or a notebook, and may further include an optical device such as a lens, a reflector, or an optical waveguide to modulate the light path as necessary. In the embodiment of the present disclosure, the type, function, and installation form of the sensor 192 are not limited.

[0039] The sensor 192 is installed on the first side S2 of the display substrate with double-sided tape or the like, and is configured so that the orthogonal projection of the sensor 192 on the base substrate 100 at least locally overlaps with the first display region 10 and receives light from the first side S1. This allows the first display region 10 to realize a display and also makes it easy to install the sensor 192.

[0040] For example, as shown in FIG. 1B and FIG. 1C, the first display area 10 includes a first sub-pixel array (consisting of gray blocks in the first display area 10), and the first sub-pixel array includes a plurality of pixel unit groups P1 (gray blocks in the first display area 10) arranged in a first direction Y1 and a second direction X1 intersecting the first direction Y1. Each of the plurality of pixel unit groups P1 includes at least one first pixel unit (e.g., a plurality of first pixel units) (described in detail below). The first pixel unit includes a first light-emitting device and a first pixel driving circuit directly connected to each other, and the first pixel driving circuit is configured to drive the first light-emitting device to emit light. The first light-emitting device and the first pixel driving circuit are located in the same pixel area and are not separated from each other in position.

[0041] The first direction Y1 and the second direction X1 may or may not intersect perpendicularly. For example, the acute angle at which the first direction Y1 and the second direction X1 intersect each other may be in the range of 10° or less and 45° or more. In the drawings of the embodiment of the present disclosure, the first direction Y1 and the second direction X1 are illustrated as intersecting perpendicularly.

[0042] Between the multiple pixel unit groups P1, there are gaps that allow light to pass through, i.e., blank areas in the first display region 10, which allows incident light from the first side S1 to pass through the gaps between adjacent pixel unit groups P1 and transmit, thereby ensuring the translucency of the first display region 10.

[0043] 1B, a plurality of first pixel unit groups P1 are arranged in two adjacent columns with a shift, that is, the pixel unit group P1 in the first column in the figure is distributed in a different row with a shift in the second direction X1 from the pixel unit group P1 in the second column, for example, the pixel unit groups P1 in the adjacent columns are in different rows.

[0044] For example, as shown in FIG. 1C, a plurality of pixel unit groups P1 are arranged in a plurality of rows and a plurality of columns, i.e., the pixel unit group P1 in the first column in the figure is adjacent to the pixel unit group P1 in the second column with a gap therebetween in the second direction X1.

[0045] For example, as shown in FIG. 1B and FIG. 1C, the second display area 20 includes a second sub-pixel array (consisting of white blocks in the second display area 20), and the second sub-pixel array includes a plurality of second pixel units C (white blocks in the second display area 20). Each of the plurality of second pixel units C includes a second light-emitting device and a second pixel driving circuit directly connected to each other, and the second pixel driving circuit is configured to drive the second light-emitting device to emit light. The second light-emitting device and the second pixel driving circuit are located in the same pixel area and are not separated from each other. For example, an arrangement of the second pixel units in the second display area 20 is shown in FIG. 2.

[0046] For example, the pixel density of the second display area is higher than that of the first display area, and the arrangement density of the pixel unit group P1 in the first display area 10 is lower than that of the second pixel unit C in the second display area 20, as shown in Figures 1B and 1C. That is, the resolution of the first display area 10 is set lower than that of the second display area 20 to leave space to allow light to pass through, that is, the density of pixels for display arranged in the first display area 10 is lower than that of the second display area 20.

[0047] Fig. 2 is a schematic diagram of an arrangement of pixel units in a second display area according to at least one embodiment of the present disclosure. Fig. 3 is a schematic diagram of a first display area of ​​a display panel according to at least one embodiment of the present disclosure. As shown in Fig. 2 and Fig. 3, the first display area 10 and the second display area 20 of the display substrate each include a plurality of pixel unit groups P1, for example, in Fig. 2 and Fig. 3, each pixel unit group P1 is shown to include four pixel units P0, for example, the four pixel units P0 are a first sub-pixel unit 101, a second sub-pixel unit 102, a third sub-pixel unit 103 and a fourth sub-pixel unit 104, respectively, but this is not limited in the embodiment of the present disclosure.

[0048] In addition, each pixel unit group P1 may further include two pixel units P0 (shown in Figures 14A to 14E) or three pixel units P0 (shown in Figures 15A to 15E), etc., but this is not limited to the embodiments of the present disclosure.

[0049] For example, in the example shown in Fig. 14A, one pixel group may further include two sub-pixels, for example, a first sub-pixel 101 and a second sub-pixel 102, for example, the first sub-pixel 101 is a red sub-pixel, and the second sub-pixel 102 is a green sub-pixel. For example, in the embodiment shown in Fig. 15A, one pixel group P1 may further include three sub-pixels, for example, a first sub-pixel 101, a second sub-pixel 102, and a third sub-pixel 103, for example, the first sub-pixel 101 is a red sub-pixel, the second sub-pixel 102 is a green sub-pixel, and the third sub-pixel 103 is a blue sub-pixel, for example, the three sub-pixels are located in one row. For example, in the example shown in FIG. 12A, one pixel group may further include four sub-pixels, for example, including a first sub-pixel 101, a second sub-pixel 102, a third sub-pixel 103, and a fourth sub-pixel 104, where the first sub-pixel 101 is a red sub-pixel, the second sub-pixel 102 is a green sub-pixel, the third sub-pixel 103 is a blue sub-pixel, and the fourth sub-pixel 104 is a green sub-pixel. In other embodiments, the pixel group may use pixel units of other colors. Of course, in other embodiments, the arrangement of the sub-pixels P0 in the display panel is not limited to that shown in FIG. 2 and FIG. 3. This is not limited in the embodiments of the present disclosure.

[0050] 2, in the second display area 20, the pixel units P0 are uniformly and regularly arranged, and the description thereof is omitted here.

[0051] For example, as shown in Fig. 3, the display substrate further includes gate lines 113 and data lines 313. The gate lines 113 and the data lines 313 are insulated from each other. Each gate line 113 is connected to a row of sub-pixels, and each data line 313 is connected to a column of sub-pixels. For example, the gate lines 113 are configured to provide scanning signals to the row of sub-pixels. The data lines 313 are configured to provide data signals to the column of sub-pixels.

[0052] 3, the data lines 313 include a first data line DL1. The first data line DL1 is located in at least the first display area 10. For example, the first data line DL1 extends from the first display area 10 to the second display area 20. For example, as shown in FIG. 3, the gate lines 113 include a first gate line GL1 extending from the second display area 20 to the first display area 10.

[0053] For clarity and brevity, Fig. 3 only illustrates the connection relationship between adjacent pixel groups P1 in the first display area 10, and does not constitute a limitation to the present disclosure. Fig. 4 is a schematic diagram of a display substrate according to at least one embodiment of the present disclosure. For example, as shown in Fig. 4, the display substrate further includes a first power supply line VDD1 connected to the plurality of pixel unit groups P1 and configured to provide a first power supply voltage to the plurality of pixel unit groups P1.

[0054] For example, as shown in Fig. 4, the display substrate further includes a shielding layer LS, which is disposed on the base substrate 100 and is located on a side of the first power line VDD1 closer to the base substrate 100, and includes a hollow region LS2 and a shielding region LS1. For example, the hollow region LS2 corresponds to the light-transmitting region R0 between adjacent first pixel unit groups shown in Fig. 3. As shown in Fig. 3 and Fig. 4, the light-transmitting region R0 is surrounded by two adjacent first gate lines GL1 and two adjacent first data lines DL1, but is not limited thereto.

[0055] For example, the first display region 10 includes a plurality of light-transmitting regions R0 located between adjacent first pixel groups P1. The light-transmitting regions R0 are capable of transmitting ambient light. For example, the light-transmitting regions R0 may include a base substrate and a transparent insulating layer located on the base substrate, and the light-transmitting regions R0 do not have a light-shielding structure, for example, do not have metal wiring. For example, the light-transmitting regions R0 are located within an area surrounded by four adjacent pixel unit groups P1 and wiring connecting the pixel unit groups P1, but are not limited thereto.

[0056] 4, adjacent pixel unit groups are connected via wiring (for example, the first data line DL1, the first power line 311, the gate line GL1, the first reset signal line 111, the second reset signal line 112, the emission control signal line 110, and the initialization signal line 210), and for example, the orthogonal projection of the pixel unit groups P0 on the base substrate 100 and the orthogonal projection of the wiring on the base substrate 100 are within the orthogonal projection of the shielding region LS1 of the shielding layer LS on the base substrate 100. That is, the shielding region LS1 shields a large number of slits that exist between the wirings connecting each first pixel unit group and between the internal connection lines of each first pixel unit group, thereby avoiding diffraction and interference that occurs when light passes through these slits, and avoiding the glare phenomenon that occurs due to uneven brightness when the light reaches the camera.

[0057] For example, in the embodiment of the present disclosure, as shown in FIG. 6A, each of the plurality of first pixel units P0 includes a pixel area A11 (i.e., an area of ​​a transistor, a capacitor, and a wiring in the first pixel unit), and for example, the plurality of power lines 311 (for example, for the first pixel unit P0, the power line 311 is the first power line VDD1, and for the second pixel unit C, the power line 311 is the second power line VDD2, and the following embodiment is the same as this, and description is omitted) are located in this pixel area A11 and the opening area A12. For example, this opening area is an area in which the size of the first pixel unit P0 shown in FIG. 6B is reduced. For example, by appropriately reducing the width of the wiring of the pixel driving circuit shown in FIG. 6B, the width-to-length ratio of each transistor, the size of the capacitor, and the size of the connection hole, and arranging the wiring in an integrated manner, the opening area A12 (FIG. 6A) can be opened in the same solid-line rectangular frame in the first pixel unit P0, thereby improving the light transmittance of the display panel. For example, in the embodiment of the present disclosure, the pixel area A11 is integrated at the position above the pixel unit group P0 (i.e., the solid-line rectangular frame), thereby reducing the space occupied by the driving circuit and leaving some space (i.e., the opening area A12) for arranging the first shielding connection part SP1 and the connection hole V1 / V2 for connecting the shielding layer LS to the first power line 311, so as to maintain a constant pixel resolution size. Specific comparison diagrams between the normal pixel unit and the pixel unit after size reduction are shown in Figures 6B and 6A.

[0058] For example, the size of the pixel driving circuit in Fig. 6A (i.e., the size of the pixel driving circuit after reduction) is 1 / 4 of the size of the pixel driving circuit shown in Fig. 6B (i.e., the size of the pixel driving circuit before reduction), and of course, it may be 1 / 6, 1 / 2, etc. as long as the corresponding function can be realized, but this is not limited to the embodiment of the present disclosure. For example, in some examples, for the screen of an under-screen camera with FHD resolution, the size of the pixel driving circuit can be reduced to a QHD level while keeping the pixel resolution of the FHD level constant, so that some space can be provided for the shielding connection part LS2 connected to the shielding layer LS and the connection hole.

[0059] In the above embodiment of the present disclosure, by reducing the size of the pixel driving circuit of the first pixel unit, it is advantageous for light transmission, and is also advantageous for realizing the connection between the shielding layer and the first power line or other power lines without changing the pixel resolution, so that a DC signal can be connected to the shielding layer without reducing the pixel density, and signal interference to the pixel driving circuit caused by the shielding layer in a floating state can be prevented, and the voltage drop of the first power line can be reduced, thereby improving the display quality of the display panel.

[0060] In order to ensure the etching uniformity of the shielding layer, there is also a shielding layer under the pixel circuits in the normal display area. For example, the orthogonal projection of the second display area 20 on the base substrate 100 falls within the orthogonal projection of the shielding area LS2 of the shielding layer LS on the base substrate 100. For example, since the second display area 20 does not include the light-transmitting area R0, the part of the shielding layer LS corresponding to the second display area 20 may be a complete surface, i.e., without any hollow area, so that the gaps between the pixel driving circuits in the second display area 20 and the gaps between the wirings connecting the pixel driving circuits can be shielded.

[0061] Generally, the wiring of a pixel driving circuit (for example, the pixel driving circuit shown in FIG. 6B) is compact, and the size occupied by the driving circuit wiring is equal to the pixel density, so that there is no remaining space for the connection parts and connection holes connected to the shielding layer LS.

[0062] In this regard, in order to keep the pixel density constant, the pixel driving circuit in the second display area 20 uses the same structure as the pixel driving circuit in the first display area 10, ie, the structure and size shown in FIG. 6A.

[0063] For example, with regard to the second display region 20, as shown in Figures 1B and 1C, the second display region 20 includes a plurality of second pixel units C arranged in an array and a plurality of second power lines VDD2, and the structure of each of the plurality of second pixel units C includes, for example, a pixel region A11 and an opening region A12, as shown in Figure 6A.

[0064] For example, the second power supply lines VDD2 are connected to the second pixel units C and configured to provide a second power supply voltage to the second pixel units C. For example, the second power supply voltage is the same as the first power supply voltage. For example, one second power supply line VDD2 extends along the second direction X1 and provides the second power supply voltage to one column of the second pixel units C.

[0065] In order to distinguish the areas in which the power supply lines 311 are located, the power supply line 311 located in the first display area 10 is called the first power supply line VDD1, and the power supply line 311 located in the second display area 20 is called the second power supply line VDD2. The signals provided by both are the same, that is, the first power supply voltage is the same as the second power supply voltage, and there is no essential difference between them.

[0066] For example, for one second pixel unit C, the opening area A12 of each second pixel unit C at least locally overlaps with the shielding area LS1 of the shielding layer LS, that is, when the second pixel unit C uses the pixel structure shown in FIG. 6A after size reduction, the shielding layer LS is connected to the second power line VDD2 to provide a DC signal to the shielding layer LS, leaving an opening area free to avoid the floating of the shielding layer LS.

[0067] For example, the opening region A12 of at least one second pixel unit C includes a second shielding connection portion SP2 that at least locally overlaps with the shielding region LS2 of the shielding layer LS, and the shielding layer LS is connected to at least one of the multiple second power lines VDD2 via the second shielding connection portion SP2 to receive a second power supply voltage, thereby providing a DC signal to the shielding layer LS and avoiding floating of the shielding layer LS.

[0068] 7 is a schematic cross-sectional view taken along line AA' according to at least one embodiment of the present disclosure. The following takes the first pixel unit P0 as an example, which is not limited in the embodiments of the present disclosure.

[0069] For example, as shown in Figures 6A and 7, the shielding layer LS (e.g., its shielding region LS1) is connected to a first shielding connection portion SP1 via a first through hole V1, and the first shielding connection portion SP1 is connected to at least one first power supply line VDD1 via a second through hole V2.

[0070] 7, the display substrate further includes a first insulating layer G11, a second insulating layer G12, a third insulating layer ILD and a fourth insulating layer G10. For example, the first insulating layer G11 is located between the shielding layer LS (e.g., its shielding region LS1) and the first shielding connection part SP1.

[0071] For example, as shown in Fig. 7, the second insulating layer G12 is located between the first insulating layer G11 and the first shielding connection SP1, and the third insulating layer ILD is located between the first shielding connection SP1 and the first power lines VDD1, or the second insulating layer G12 is located between the first shielding connection SP1 and the first power lines VDD1, and the third insulating layer ILD is located between the second insulating layer G12 and the first power lines VDD1. In Fig. 7, the positional relationship of the second insulating layer G12 is not specifically shown and depends on the actual situation. In the embodiment of the present disclosure, there is no limitation thereon.

[0072] For example, in some examples, the shielding layer LS is connected to the first shielding connection SP1 through a first through hole penetrating the first insulating layer G11, and the first shielding connection SP1 is connected to at least one first power line VDD1 through a second through hole penetrating the second insulating layer G12 and the third insulating layer ILD. Or, for example, in another example, as shown in FIG. 7, the shielding layer LS is connected to the first shielding connection SP1 through a first through hole V1 penetrating the first insulating layer G11 and the second insulating layer G12, and the first shielding connection SP1 is connected to at least one first power line VDD1 through a second through hole penetrating the third insulating layer ILD. That is, the first shielding connection SP1 may be located on the first conductive layer or on the second conductive layer. FIG. 7 shows a schematic diagram in which the first shielding connection SP1 is located on the second conductive layer, but this is not limited in the embodiment of the present disclosure. The related introduction of the first conductive layer and the second conductive layer will be described below. Here, the description will be omitted. For example, the following will take the first shielding connection part located on the first conductive layer as an example. In the embodiment of the present disclosure, this is not limited.

[0073] Figure 8 is a plan view of the semiconductor pattern of the display substrate shown in Figure 6A, Figure 9 is a plan view of the first conductive layer of the display substrate shown in Figure 6A, Figure 10 is a plan view of the second conductive layer of the display substrate shown in Figure 6A, and Figure 11 is a plan view of the third conductive layer of the display substrate shown in Figure 6A.

[0074] As shown in FIG. 7, the fourth insulating layer G10 is located between the shielding layer LS and an active layer of a transistor (eg, the active layer A7 of the second reset transistor T1).

[0075] For example, as shown in Figs. 8 to 11, the first conductive layer LY1 includes the gate line GL1, the second conductive layer LY2 includes the second electrode plate C12 of the storage capacitor C1, and the third conductive layer LY3 includes the first power supply line VDD1. For example, in a direction perpendicular to the base substrate 100, the first insulating layer G11 is located between the active layer A7 and the first conductive layer LY1, the second insulating layer G12 is located between the gate line and the second conductive layer LY2, and the third insulating layer ILD is located between the second electrode plate C12 of the storage capacitor C1 and the third conductive layer LY3. For example, the first shielding connection part SP1 is located on the first conductive layer LY1 shown in Fig. 9. This is not limited in the embodiment of the present disclosure.

[0076] For example, as shown in Figure 5, the pixel driving circuit includes a driving transistor T1, a data writing transistor T2, a compensation transistor T3, a first emission control transistor T4, a second emission control transistor T5, a first reset transistor T6, a second reset transistor T7 and a storage capacitor C1. For example, each transistor and capacitor includes a first pole and a second pole. The connection relationship and working principle of this pixel driving circuit can be introduced in the description of the present field, and the description is omitted here.

[0077] For example, as shown in FIG. 8, active layers A6, A3, A5, A7 of the first reset transistor T6, the compensation transistor T3, the second emission control transistor T5, and the second reset transistor T7 are located in a first semiconductor layer A01 extending along a first direction Y1, active layers A2, A4 of the data write transistor T2 and the first emission control transistor T4 are located in a second semiconductor layer A02 extending along a second direction X1, and the first semiconductor layer A01 and the second semiconductor layer A02 are connected to and integrally formed with the active layer A1 of the driving transistor T1.

[0078] For example, as shown in Figures 6A and 8, the active layer A1 of the driving transistor T1 is located on a virtual line of the active layer A6 of the first reset transistor T6 in the first direction Y1, and the active layers A3 and A2 of the compensation transistor T3 and the data write transistor T2 are respectively located on both sides of the active layer A1 of the driving transistor T1 and are located on the side of the active layer A1 of the driving transistor T1 closer to the active layer A6 of the first reset transistor T6, that is, in the second direction Y1, the active layers A3 and A2 of the compensation transistor T3 and the data write transistor T2 are located above the active layer A1 of the driving transistor T1, and the active layers A5 and A4 of the second emission control transistor T5 and the first emission control transistor T4 are respectively located on both sides of the active layer A1 of the driving transistor T1 and are located on the side of the active layer A1 of the driving transistor T1 away from the active layer A6 of the first reset transistor T6, for example, located below the active layer A1 of the driving transistor T1 in the second direction Y1.

[0079] 6A and 9, the active layer A7 of the second reset transistor T7 is located on the side of the active layer A5 of the second emission control transistor T5 that is away from the active layer of the compensation transistor T3, and the compensation transistor T3 includes a first gate G31 extending along the first direction Y1 and a second gate G32 extending along the second direction X1, and the second gate G32 is juxtaposed in the first direction Y1 with the gate G5 of the second emission control transistor T5 and the gate (not shown) of the second reset transistor T7 that extend along the second direction X2. The gate G2 of the data write transistor T2 and the gate G4 of the first emission control transistor T4 extend along the second direction X1 and are juxtaposed in the first direction Y1.

[0080] For example, the gate G6 of the first reset transistor T6 extends along the second direction X1 and is arranged side by side with the gate G1 of the driving transistor T1 in the first direction Y1, and the gate G1 of the driving transistor T1 is formed integrally with the first electrode plate C11 of the storage capacitance C1.

[0081] For example, the display substrate further includes a gate line 113, a light emission control signal line 110, a first reset signal line 111, and a second reset signal line (integrally formed with the gate of the second reset transistor T7) extending along the second direction Y1.

[0082] For example, the gate G6 of the first reset transistor T6 is connected to and integrally formed with the first reset signal line 111, the second gate G32 of the compensation transistor T3 and the gate G2 of the data write transistor T2 are connected to and integrally formed with the gate line 113, the gate G6 of the second light-emitting control transistor T6 and the gate G5 of the first light-emitting control transistor T5 are connected to and integrally formed with the light-emitting control signal line 110, and the gate of the second reset transistor T7 is connected to and integrally formed with the second reset signal line.

[0083] For example, the display substrate further includes a gate line 113, a light emission control signal line 110, a first reset signal line 111 and a second reset signal line 112 extending along the second direction Y1, for example, the gate of the first reset transistor T6 is connected to and integrally formed with the first reset signal line 111, the second gate G32 of the compensation transistor T3 and the gate G2 of the data write transistor T2 are connected to and integrally formed with the gate line 113. The gate G5 of the second light emission control transistor T5 and the gate G4 of the first light emission control transistor T4 are connected to and integrally formed with the light emission control signal line 110, and the gate G7 of the second reset transistor T7 is connected to and integrally formed with the second reset signal line 112.

[0084] For example, the display substrate further includes a data line 313 connected to the active layer A4 of the data write transistor T4 and configured to provide a data signal DATA, wherein the orthogonal projection of the first power supply line VDD1 on the base substrate 100 at least locally overlaps with the orthogonal projection of the active layer A1 of the active layer A6 of the first reset transistor T6 on the base substrate 100 and the orthogonal projection of the active layer A1 of the driving transistor T1 on the base substrate 100, and the orthogonal projection of the data line 313 on the base substrate 100 is located on the side of the orthogonal projection of the second semiconductor layer A02 on the base substrate 100 that is away from the orthogonal projection of the first power supply line VDD1 on the base substrate 100.

[0085] For example, as shown in Figures 6A and 11, the pixel driving circuit further includes a first via electrode EC1, which is connected to the active layer of the second light-emitting control transistor T5, the active layer A7 of the second reset transistor T7, and the first pole E1 of the light-emitting device 20 via through holes, and the orthogonal projection of the first via electrode EC1 on the base substrate 100 is located between the orthogonal projection of the active layer A7 of the second reset transistor T7 on the base substrate 100 and the orthogonal projection of the active layer A1 of the driving transistor T1 on the base substrate 100.

[0086] For example, for each of the multiple second pixel units C, the orthogonal projection of the second shielding connection portion SP2 on the base substrate 100 is located between the orthogonal projection of the active layer A7 of the second reset transistor T7 on the base substrate 100 and the orthogonal projection of the second power supply line VDD2 on the base substrate 100, and overlaps at least locally with the orthogonal projection of the second power supply line VDD2 on the base substrate 100, thereby leaving an opening region A12.

[0087] For example, referring to FIG. 5, the gate line 113 is configured to provide a scan signal SCAN to the pixel circuit 10. The emission control signal line 110 is configured to provide an emission control signal EM to the sub-pixel P0. The data line 313 is configured to provide a data signal DATA to the pixel circuit 10, the first power supply line 311 is configured to provide a constant first voltage signal ELVDD to the pixel circuit 10, and the third power supply line 312 is configured to provide a constant second voltage signal ELVSS to the pixel circuit 10, and the first voltage signal ELVDD is greater than the second voltage signal ELVSS. The initialization signal line 210 is configured to provide an initialization signal Vinit to the pixel circuit 10. The initialization signal Vinit is a constant voltage signal, and the magnitude of the initialization signal Vinit may be, for example, between the first voltage signal ELVDD and the second voltage signal ELVSS, but is not limited thereto. For example, the initialization signal Vinit may be less than or equal to the second voltage signal ELVSS. For example, the pixel circuit outputs a driving current under the control of signals such as a scan signal SCAN, a data signal DATA, an initialization signal Vinit, a first voltage signal ELVDD, a second voltage signal ELVSS, and a light emission control signal EM to drive the light emitting element 20 to emit light. The light emitting element 20 emits red light, green light, blue light, white light, etc. under the driving of the corresponding pixel circuit 10.

[0088] As shown in FIG. 5, the driving transistor T1 of the pixel circuit 10 is electrically connected to the light-emitting element 20, and outputs a driving current under the control of signals such as a scanning signal SCAN, a data signal DATA, a first voltage signal ELVDD, and a second voltage signal ELVSS to drive the light-emitting element 20 to emit light.

[0089] For example, the display panel according to the embodiment of the present disclosure further includes a data driving circuit and a scan driving circuit. The data driving circuit is configured to provide a data signal DATA to the sub-pixel P0 according to an instruction of the control circuit, and the scan driving circuit is configured to provide signals such as an emission control signal EM, a scan signal SCAN, a first reset control signal RST1 and a second reset signal RST2 to the sub-pixel P0 according to an instruction of the control circuit. For example, the control circuit includes, but is not limited to, an external integrated circuit (IC). For example, the scan driving circuit is a GOA (Gate driver On Array) structure attached to the display panel, or a driver chip (IC) structure bonded to the display panel. For example, different driving circuits may be used to provide the emission control signal EM and the scan signal SCAN, respectively. For example, the display panel further includes a power source (not shown) for providing the voltage signals, and the power source may be a voltage source or a current source as required. The power supply is configured to provide a first voltage signal ELVDD, a second power supply voltage ELVSS, an initialization signal Vinit, etc. to the sub-pixel P0 via a first power line 311, a third power line 312, and an initialization signal line 210, respectively.

[0090] 5, the second pole C12 of the storage capacitance C1 is electrically connected to the first power line 311, and the first pole C11 of the storage capacitance C1 is electrically connected to the second pole T12 of the threshold compensation transistor T1. The gate T20 of the data write transistor T2 is electrically connected to the gate line 113, and the first pole T21 and the second pole T22 of the data write transistor T2 are electrically connected to the data line 313 and the first pole T11 of the driving transistor T1, respectively. The gate T30 of the threshold compensation transistor T3 is electrically connected to the gate line 113, the first pole T31 of the threshold compensation transistor T3 is electrically connected to the second pole T12 of the driving transistor T1, and the second pole T32 of the threshold compensation transistor T3 is electrically connected to the gate T10 of the driving transistor T1.

[0091] For example, as shown in FIG. 5, a gate T40 of the first light-emission control transistor T4 and a gate T50 of the second light-emission control transistor T5 are both connected to the light-emission control signal line 110. As shown in FIG.

[0092] 5, the first electrode T41 and the second electrode T42 of the first emission control transistor T4 are electrically connected to the first power line 311 and the first electrode T11 of the driving transistor T1, respectively. The first electrode T51 and the second electrode T52 of the second emission control transistor T5 are electrically connected to the second electrode T12 of the driving transistor T16 and the pixel electrode E1 (which may be the anode of the OLED) of the light-emitting element 20, respectively. The common electrode E2 of the light-emitting element 20 (which may be the common electrode of the OLED, for example, the cathode) is electrically connected to the third power line 312.

[0093] 5, the gate T60 of the first reset transistor T6 is electrically connected to the first reset control signal line 111, the first pole T61 of the first reset transistor T6 is electrically connected to the initialization signal line 210 (first initialization signal line 211), and the second pole T62 of the first reset transistor T6 is electrically connected to the gate T10 of the driving transistor T1. The gate T70 of the second reset transistor T7 is electrically connected to the second reset control signal line 112, the first pole T71 of the second reset transistor T7 is electrically connected to the initialization signal line 210 (second initialization signal line 212), and the second pole T72 of the second reset transistor T7 is electrically connected to the pixel electrode E1 of the light-emitting element 20.

[0094] Fig. 8 shows the semiconductor pattern SCP, and Fig. 9 shows the first conductive layer LY1 with the first insulating layer G11 between the semiconductor pattern SCP. By doping the semiconductor pattern SCP using the first conductive layer LY1 as a reticle, the area of ​​the semiconductor pattern SCP that is not covered by the first conductive layer LY1 maintains the semiconductor properties and forms the channel of the thin film transistor, while the area of ​​the semiconductor pattern SCP that is covered by the first conductive layer LY1 is made conductive and forms the source electrode or drain electrode of the thin film transistor. Fig. 6A shows an active layer formed by locally making the semiconductor pattern SCP conductive.

[0095] As shown in FIG. 9, the first conductive layer LY1 includes a first reset control signal line 111, a second reset control signal line (not shown), a light emission control signal line 110, a gate line 113, and a first electrode C11 of a storage capacitor C1.

[0096] FIG. 10 shows the second conductive layer LY2 with the second insulating layer G12 between the first conductive pattern layer LY1. The second conductive layer LY2 includes the initialization signal line 210 and the second pole C12 of the storage capacitor C1. The second pole C12 of the storage capacitor C1 has an opening. The interlayer insulating layer ILD is located between the second conductive layer LY2 and the third conductive layer LY3. The first gate insulating layer, the second gate insulating layer, the interlayer insulating layer, the first conductive layer LY1, the second conductive layer LY2 and the third conductive layer LY3 can be referred to the introduction of this field. Here, the description is omitted.

[0097] FIG. 11 shows the first power line 311, the data line 313, the first connecting electrode EC1, the second connecting electrode EC2 and the third conductive layer LY3 including the first electrode E1 of the light emitting element 20. As shown in FIG.

[0098] For example, as shown in FIG. 11, the first power line 311 includes a protrusion 3111, and the orthogonal projection of the second through hole V2 on the base substrate overlaps with the orthogonal projection of the protrusion 3111 on the base substrate, that is, the first shielding connection part SP1 is connected to the protrusion 3111 of the first power line S11 through the second through hole V2. The orthogonal projection of the first through hole V1 on the base substrate overlaps with the orthogonal projection of the first power line 311 on the base substrate. For example, as shown in FIG. 6A and FIG. 7, the first through hole V1 and the second through hole V2 are arranged on the left and right, and may be arranged up and down in the first direction Y1. This is not limited in the embodiment of the present disclosure.

[0099] For example, in an embodiment of the present disclosure, the orthogonal projection of the first through hole V1 on the base substrate does not overlap with the orthogonal projection of the second through hole V2 on the base substrate, i.e., the two are installed one above the other or left and right. In this way, the process is simplified and problems such as the film layer being easily cut, the process being difficult to realize, and the first power line 311 having a large slope and being uneven, which are caused by the orthogonal projection of the first through hole on the base substrate overlapping with the orthogonal projection of the second through hole on the base substrate, can be avoided.

[0100] In addition, the transistors employed in some embodiments of the present disclosure may be thin film transistors or field effect transistors or other switching devices with the same characteristics. The source electrode and drain electrode of the transistor employed here may be structurally symmetrical, so that the source electrode and drain electrode may not be structurally distinguished. In one embodiment of the present disclosure, in order to distinguish between the two poles other than the gate of the transistor, it is directly described that one of them is a first pole and the other is a second pole, so that the first pole and the second pole of all or some of the transistors in the embodiments of the present disclosure can be interchanged as necessary. For example, the first pole of the transistor described in the embodiments of the present disclosure may be a source electrode, and the second pole may be a drain electrode. Or, the first pole of the transistor may be a drain electrode, and the second pole may be a source electrode.

[0101] In addition, according to the characteristics of the transistors, the transistors can be divided into N-type transistors and P-type transistors. In the embodiments of the present disclosure, an example in which all the transistors are P-type transistors will be described. Based on the description and teaching of this embodiment of the present disclosure, a person skilled in the art can easily conceive of adopting N-type transistors as at least some of the transistors in the pixel circuit of the embodiment of the present disclosure, that is, adopting an embodiment of N-type transistors or a combination of N-type transistors and P-type transistors, without any creative effort, and these embodiments also fall within the scope of protection of the present disclosure.

[0102] FIG. 6A illustrates a pixel circuit of 7T1C, and the embodiments of the present disclosure include, but are not limited to, this. Note that the embodiments of the present disclosure do not limit the number of thin film transistors and the number of capacitors included in the pixel circuit. For example, in some other embodiments, the pixel circuit of the display substrate may further include a structure including other numbers of transistors, such as a 7T2C structure, a 6T1C structure, a 6T2C structure, or a 9T3C structure. The embodiments of the present disclosure do not particularly limit this.

[0103] For example, the base substrate 100 in at least one embodiment of the present disclosure may be a glass plate, a timber plate, a metal plate, a resin panel, etc. For example, the material of the base substrate may include an organic material, for example, the organic material may be a resin material such as polyimide, polycarbonate, polyacrylic ester, polyetherimide, polyethersulfone, polyethylene terephthalate, and polyethylene naphthalate, and for example, the base substrate 100 may be a flexible substrate or a non-flexible substrate. The embodiment of the present disclosure is not limited thereto.

[0104] For example, the materials of the first insulating layer G11, the second insulating layer G12, the third insulating layer ILD, and the fourth insulating layer BL may include inorganic insulating materials such as SiNx, SiOx, SiNxOy, organic insulating materials such as organic resins, or other suitable materials, although the embodiments of the present disclosure are not particularly limited thereto.

[0105] For example, the material of the third conductive layer LY3 may include titanium, titanium alloy, aluminum, aluminum, copper, copper alloy, or any other suitable composite material. There is no particular limitation in the embodiment of the present disclosure. For example, the materials of the shielding layer LS, the first conductive layer LY1, and the second conductive layer LY2 may be the same as the material of the third conductive layer LY3. Here, the description is omitted.

[0106] For example, the material of the semiconductor layer 310 may include an oxide semiconductor, an organic semiconductor, or amorphous silicon, polycrystalline silicon, etc., and for example, the oxide semiconductor includes a metal oxide semiconductor (e.g., indium gallium zinc oxide (IGZO)), and the polycrystalline silicon includes low-temperature polycrystalline silicon or high-temperature polycrystalline silicon, etc., without any particular limitation in the embodiment of the present disclosure. Note that the source electrode region and the drain electrode region may be regions doped with n-type impurities or p-type impurities, without any particular limitation in the embodiment of the present disclosure.

[0107] Below are some examples of schematic diagrams of the first shielding connection part. For example, the first shielding connection part may be located in the middle, both ends or one end of the first pixel units of two rows in the first display area. The embodiments of the present disclosure are not limited thereto.

[0108] 12A is a schematic diagram of an example of a display substrate according to at least one embodiment of the present disclosure, FIG. 12B is a plan view of a shielding area LS1 of a shielding layer LS of the display substrate shown in FIG. 12A, FIG. 12C is a plan view of a semiconductor pattern of the display substrate shown in FIG. 12A, FIG. 12D is a plan view of a first conductive layer of the display substrate shown in FIG. 12A, FIG. 12E is a plan view of a second conductive layer of the display substrate shown in FIG. 12A, and FIG. 12F is a plan view of a third conductive layer of the display substrate shown in FIG. 12A.

[0109] For example, as shown in FIG 12A, one pixel unit group includes four first pixel units 101, 102, 103 and 104. For example, as shown in FIG 12A, for each pixel unit group, the first shielding connection part SP1 is located between two first pixel units adjacent to each other in the first direction Y1 in each pixel unit group. For the related introduction of FIG 12B to FIG 12F, please refer to the description of FIG 8 to FIG 11.

[0110] For example, in the example shown in FIG. 12A, the orthogonal projection of the first shielding connection portion SP1 on the base substrate 100 is located between the orthogonal projection of the active layer A7 of the second reset transistor T7 on the base substrate 100 and the orthogonal projection of the first power supply line VDD1 on the base substrate 100, and at least locally overlaps with the orthogonal projection of the first power supply line VDD1 on the base substrate 100 (for example, as shown in FIG. 6A).

[0111] For example, as shown in Fig. 12A, in the first direction Y1, the first power lines 311 between two adjacent pixel unit groups are connected through one third conductive line L3, the first data line DL1 includes a first portion DL11 and a second portion DL12, the first portion DL11 of the first data line DL1 locally overlaps the third conductive line L3, the second portion DL12 of the first data line DL1 at least locally overlaps the third conductive line L3, and the first portion DL11 of the first data line DL1 and the second portion DL12 of the first data line DL1 are located in different layers. For example, the first portion DL11 of the first data line DL1 on the left side in Fig. 12A is located on the second conductive layer LY2 shown in Fig. 12E, and the second portion DL12 of the first data line DL1 on the right side is located on the first conductive layer LY1 shown in Fig. 12D. For example, referring to FIGS. 12A, 12D and 12E, the first portion DL11, the second portion DL12 and the third conductive line L3 of the first data line DL1 are located between adjacent pixel unit groups.

[0112] For example, as shown in FIG. 12F , the third conducting wire L3 is integrally formed with the first power supply line 311 and connected to the first power supply lines 311 of two adjacent pixel unit groups, so that the adjacent pixel unit groups are connected via only one third conducting wire, thereby reducing the wiring area and improving the light transmittance.

[0113] For example, referring to Fig. 12F, two first data lines DL1 are provided, each connected to two adjacent columns of sub-pixels. For example, as shown in Fig. 12F, a first portion DL11 and a second portion DL12 are respectively connected to the two first data lines DL1, and locally overlap with the orthogonal projection of the same third conducting line L3 on the base substrate BS. In this installation form, the data lines located between pixel unit groups in two adjacent columns of sub-pixels can be hidden under the third conducting line, thereby reducing the wiring area and improving the light transmittance.

[0114] For example, as shown in Fig. 12B, the shielding region LS1 includes a first portion LS11, a second portion LS12, a third portion LS13, and a fourth portion LS14, which overlap with the wirings connected to the pixel unit group shown in Fig. 12A. For example, the orthogonal projection of the third portion LS13 of the shielding region LS1 on the base substrate overlaps with the orthogonal projection of the third conducting line L3, the first portion DL11, and the second portion DL12 of the first data line DL1 connected to the previous pixel unit group in Fig. 12A on the base substrate, thereby shielding the third conducting line L3, the first portion DL11, and the second portion DL12 of the first data line DL1, and the gaps therebetween. The orthogonal projection of the fourth portion LS14 of the shielding region LS1 on the base substrate overlaps with the orthogonal projection of the third conducting line L3, the first portion DL11, and the second portion DL12 of the first data line DL1 connected to the next pixel unit group in Fig. 12A on the base substrate. The orthogonal projections of the first portion LS11 and the second portion LS12 of the shielding region LS1 onto the base substrate overlap with the orthogonal projections of the wiring connected to the left and right pixel unit groups onto the base substrate, respectively.

[0115] 12C, since the shielding connection part SP1 is located in the middle of the adjacent first pixel units, in order to easily install the shielding connection part SP1, the active layer of the second reset transistor in the previous first pixel unit located in the same column of the same pixel unit group extends along the first direction Y1 and is connected to the active layer of the first reset transistor T6 located in the next first pixel unit located in the same column, but this is not limited in the embodiment of the present disclosure.

[0116] 13A is a schematic diagram of an example of another display substrate according to at least one embodiment of the present disclosure, FIG. 13B is a plan view of a shielding area LS1 of a shielding layer LS of the display substrate shown in FIG. 13A, FIG. 13C is a plan view of a semiconductor pattern of the display substrate shown in FIG. 13A, FIG. 13D is a plan view of a first conductive layer of the display substrate shown in FIG. 13A, FIG. 13E is a plan view of a second conductive layer of the display substrate shown in FIG. 13A, and FIG. 13F is a plan view of a third conductive layer of the display substrate shown in FIG. 13A.

[0117] For example, the display substrate shown in Fig. 13A is similar to the display substrate shown in Fig. 12A, and the difference is that the first shielding connection parts SP1 are located at both ends of each pixel unit group, and are connected to at least one of the first power lines VDD1 corresponding to each pixel unit. For example, the first shielding connection parts SP1 located at both ends may be connected to the same first power line VDD1, or may be connected to two different first power lines VDD1 corresponding to the pixel unit group, that is, the two first shielding connection parts may be located in the same column or in different columns. This is not limited in the embodiment of the present disclosure.

[0118] As shown in Fig. 13B, the shielding region LS1 only includes portions LS21, LS22, LS23, and LS24 extending along the second direction X1, and shields the wirings connected to the left and right pixel unit groups, respectively. Since the third conducting wire connecting the upper pixel unit group and the lower pixel unit group, and the first and second portions of the first data line DL1 in Fig. 13A extend along the second direction X1, respectively, compared to the example in Fig. 12B, the shielding region LS1 shown in Fig. 13B does not include a portion extending along the first direction Y1.

[0119] In addition, when the shielding connection portion SP1 is located at both ends, as shown in FIG. 13B, the semiconductor layers of each first pixel unit are consistent, that is, the first pixel units located in the same column are not connected, and the active layer of the second reset transistor further includes a bend portion T74, unlike that in FIG. 12C.

[0120] 14A is a schematic diagram of an example of another display substrate according to at least one embodiment of the present disclosure, FIG. 14B is a plan view of a shielding area LS1 of a shielding layer LS of the display substrate shown in FIG. 14A, FIG. 14C is a plan view of a semiconductor pattern of the display substrate shown in FIG. 14A, FIG. 14D is a plan view of a first conductive layer of the display substrate shown in FIG. 14A, FIG. 14E is a plan view of a second conductive layer of the display substrate shown in FIG. 14A, and FIG. 14F is a plan view of a third conductive layer of the display substrate shown in FIG. 14A. 15A is a schematic diagram of an example of another display substrate according to at least one embodiment of the present disclosure, FIG. 15B is a plan view of a shielding area LS1 of a shielding layer LS of the display substrate shown in FIG. 15A, FIG. 15C is a plan view of a semiconductor pattern of the display substrate shown in FIG. 15A, FIG. 15D is a plan view of a first conductive layer of the display substrate shown in FIG. 15A, FIG. 15E is a plan view of a second conductive layer of the display substrate shown in FIG. 15A, and FIG. 15F is a plan view of a third conductive layer of the display substrate shown in FIG. 15A.

[0121] For example, as shown in Figure 14A, one pixel unit group includes two first pixel units 101 and 102. For example, as shown in Figure 15A, one pixel unit group includes three first pixel units 101, 102 and 103.

[0122] The shielded area in Fig. 15B is similar to the shielded area in Fig. 12B, except that it further includes a protrusion. A description of the similar parts will be omitted.

[0123] 14A and 15A, the first shielding connection part SP1 is located at one end of each pixel unit group, and is connected to at least one of the first power supply lines VDD1 corresponding to the pixel unit group. For example, the first shielding connection part SP1 is connected to the first power supply line VDD1 connected to the first pixel unit 101. The embodiment of the present disclosure is not limited thereto.

[0124] For example, as shown in FIG. 14B, when the first shielding connection portion SP1 is located at one end or both ends of each pixel unit group, the shielding region LS1 of the shielding layer LS further includes a protrusion LS11, which overlaps with the first shielding connection portion SP1, thereby avoiding phenomena such as light diffraction.

[0125] In addition, the above embodiments only show the number and position of the first shielding connection part SP1 as a schematic diagram, and it is obvious that the number of the first shielding connection part SP1 corresponding to the display substrate of different embodiments may be more or less, and the position may be changed, which is not limited in the embodiments of the present disclosure.

[0126] In addition, the manner in which the second shielding part SP2 in the second display area 20 is connected to the shielding layer LS and the second power line VDD2 is basically the same as the manner in which the first shielding part SP2 in the first display area 10 is connected, and the relevant descriptions in FIG. 7, FIG. 12A to FIG. 15F can be referred to for specific details, and the description will be omitted here. For example, each second pixel unit C in the second display area 20 corresponds to one second shielding part, so that the ELVDD signal is connected to the shielding layer LS in each pixel circuit, and a stable DC signal is input to the shielding layer LD, and a large ELVDD signal network is formed in the entire display area, which is advantageous for reducing the wiring voltage drop, improving the display uniformity, and improving the display effect. In addition, the light-shielding layer LS of the first display area 10 is connected to and integrally formed with the light-shielding layer LS of the second display area 20 to form an integrated ELVDD signal network, which further provides a wiring voltage drop of the power lines (i.e., the first power line VDD1 and the second power line VDD2) that provide the ELVDD signal, thereby improving the display effect.

[0127] 16 is a schematic diagram of a display device according to at least one embodiment of the present disclosure. At least one embodiment of the present disclosure provides a display device 2. The display device 2 may include the display substrate 1 of any of the above embodiments.

[0128] For example, as shown in Fig. 16, the display device 2 may further include a flexible circuit board and a control chip. For example, the flexible circuit board is bonded to the bonding area of ​​the display substrate 1, and the control chip is attached to the flexible circuit board to be electrically connected to the display area, or the control chip is directly bonded to the bonding area to be electrically connected to the display area.

[0129] For example, the control chip may be a central processor, a digital signal processor, a system chip (SoC), etc. For example, the control chip may further include a memory, a power supply module, etc., and realize power supply and signal input / output functions through separately installed conductors and signal lines, etc. For example, the control chip may further include a hardware circuit and a computer executable code, etc. The hard circuit may include a conventional very large scale integrated (VLSI) circuit or gate array and logic chips, conventional semiconductors such as transistors, or other individual elements, and the hard circuit may further include a field programmable gate array, a programmable array logic, a programmable logic device, etc.

[0130] For example, the display device 2 according to at least one embodiment of the present disclosure may be any product or component having a display function, such as an OLED panel, an OLED TV, a QLED panel, a QLED TV, a mobile phone, a tablet computer, a notebook computer, a digital photo frame, a navigator, etc. The display device 2 may further include other components, such as a data driving circuit, a timing controller, etc. The embodiment of the present disclosure is not particularly limited thereto.

[0131] 16 and 1, the display device 2 further includes a sensor 192. The sensor 192 is provided on the second side S2 (e.g., the non-display side) of the display substrate 1. The sensor 192 is configured to receive light (e.g., collimated light or uncollimated light) from the first side S1 (e.g., the display side of the display substrate) of the display substrate 1. An orthogonal projection of the sensor 192 on the base substrate 100 at least locally overlaps with the first display region 10.

[0132] For example, the sensor 192 may be an image sensor, an infrared sensor, a distance sensor, etc., and the sensor 192 may be realized in the form of, for example, a chip, etc. The sensor 192 is installed on the non-display side S2 (the side facing away from the user) of the display substrate.

[0133] For example, the sensor 192 at least locally overlaps with the first display region 10 in the normal direction of the display surface of the display substrate.

[0134] For example, the sensor 192 may be an image sensor, and may be used to collect an image of the external environment facing the light collecting surface of the sensor 192, and may be, for example, a CMOS image sensor or a CCD image sensor. The sensor 192 may further be an infrared sensor, a distance sensor, etc. The sensor 192 may be realized as a camera of a mobile terminal such as a mobile phone or a notebook, and may further include an optical device such as a lens, a reflector, or an optical waveguide to modulate the light path as necessary. In the embodiment of the present disclosure, the type, function, and installation form of the sensor 192 are not limited.

[0135] The sensor 192 is installed on the non-display side S2 of the display panel with double-sided tape or the like, and the orthogonal projection of the sensor 192 on the base substrate 100 is configured to at least locally overlap the first display region 10 and receive light from the first side S1. This allows the first display region 10 to realize a display and also makes it easy to install the sensor 192.

[0136] It should be noted that, in the embodiment of the present disclosure, in order to clearly and concisely show, not all components of the display device are given. In order to realize the function of the substrate of this display device, a person skilled in the art can provide and install other configurations not shown according to specific needs, but the embodiment of the present disclosure is not limited thereto.

[0137] Regarding the technical effects of the display device according to the above-mentioned embodiment, reference may be made to the technical effects of the display substrate according to the embodiment of the present disclosure, but the description thereof will be omitted here.

[0138] The following points will be explained.

[0139] (1) The drawings of the embodiments of the present disclosure relate only to the configurations related to the embodiments of the present disclosure, and other configurations may refer to conventional designs.

[0140] (2) Where no conflicts exist, the embodiments and features of the embodiments of this disclosure may be combined to obtain new embodiments.

[0141] The above description is merely a specific embodiment of the present disclosure, and the scope of protection of the present disclosure is not limited thereto, and any changes or replacements that can be easily thought of by any person skilled in the art within the technical scope disclosed in the present disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A display substrate having a first side for display and a second side opposite the first side, A base substrate; a display area disposed on the base substrate, the display area including a first display area and a second display area at least locally surrounding the first display area, the first display area allowing light from a first side of the display substrate to at least partially transmit to a second side of the display substrate for detection, the first display area including a plurality of pixel unit groups arranged at intervals, each of the plurality of pixel unit groups including a plurality of first pixel units, each of the plurality of first pixel units including a pixel area and an aperture area; A plurality of first power lines are located in the pixel area, connected to the plurality of pixel unit groups, and configured to provide a first power supply voltage to the plurality of pixel unit groups; a shielding layer disposed on the base substrate and located on a side of the first power line closer to the base substrate, the shielding layer including a hollow region and a shielding region; For one pixel unit group, the opening region of each of the first pixel units at least locally overlaps with the shielding region of the shielding layer; an opening region of the at least one first pixel unit including a first shielding connection portion at least locally overlapping with a shielding region of the shielding layer, and the shielding layer is connected to at least one first power line of the plurality of first power lines via the first shielding connection portion to receive the first power supply voltage; a first power supply line extending from the first shielding connection portion to the first substrate and extending from the first substrate to the first substrate; a second power supply line extending from the first shielding connection portion to the first substrate; a first shielding layer extending from the first shielding connection portion to the first substrate;

2. The display substrate of claim 1 , wherein the shielding layer is connected to the first shielding connection portion via a first through hole, and the first shielding connection portion is connected to the at least one first power line via a second through hole.

3. The display substrate further includes a first insulating layer, a second insulating layer, and a third insulating layer, the first insulating layer being located between the shielding layer and the first shielding connection part; the second insulating layer is located between the first insulating layer and the first shielding connection portion, and the third insulating layer is located between the first shielding connection portion and the first power supply lines, or the second insulating layer is located between the first shielding connection portion and the first power supply lines, and the third insulating layer is located between the second insulating layer and the first power supply lines, 3. The display substrate of claim 2, wherein the shielding layer is connected to the first shielding connection portion via a first through hole penetrating the first insulating layer, and the first shielding connection portion is connected to the at least one first power line via a second through hole penetrating the second insulating layer and the third insulating layer; or the shielding layer is connected to the first shielding connection portion via a first through hole penetrating the first insulating layer and the second insulating layer, and the first shielding connection portion is connected to the at least one first power line via a second through hole penetrating the third insulating layer.

4. an orthogonal projection of the first through hole on the base substrate does not overlap with an orthogonal projection of the second through hole on the base substrate; 4. The display substrate of claim 3, wherein the first power supply line includes a protrusion, an orthogonal projection of the second through hole on the base substrate overlaps with an orthogonal projection of the protrusion on the base substrate, and an orthogonal projection of the first through hole on the base substrate overlaps with an orthogonal projection of the first power supply line on the base substrate.

5. The display substrate according to any one of claims 1 to 4, wherein adjacent pixel unit groups are connected via wiring, and orthogonal projections of the plurality of pixel unit groups on the base substrate and orthogonal projections of the wiring on the base substrate are within orthogonal projections of a shielding region of the shielding layer on the base substrate.

6. the second display region includes a plurality of second pixel units arranged in an array and a plurality of second power lines, each of the second pixel units including a pixel region and an aperture region; the second power supply lines are connected to the second pixel units and configured to provide a second power supply voltage, which is the same as the first power supply voltage, to the second pixel units; For one second pixel unit, an opening region of each of the second pixel units at least locally overlaps with a shielding region of the shielding layer; The display substrate of claim 1 , wherein the opening area of ​​the at least one second pixel unit includes a second shielding connection that at least locally overlaps the shielding area of ​​the shielding layer.

7. The display substrate according to claim 1 , wherein an orthogonal projection of the second display region on the base substrate falls within an orthogonal projection of the shielding region of the shielding layer on the base substrate.

8. 8. The display substrate of claim 1, wherein each of the first pixel units and the second pixel units includes a pixel driving circuit configured to drive the light emitting device to emit light, and a light emitting device.

9. the pixel driving circuit includes a driving transistor, a data writing transistor, a compensation transistor, a first light emission control transistor, a second light emission control transistor, a first reset transistor, a second reset transistor, and a storage capacitor; active layers of the first reset transistor, the compensation transistor, the second light emission control transistor, and the second reset transistor are located in a first semiconductor layer extending along a first direction, active layers of the data write transistor and the first light emission control transistor are located in a second semiconductor layer extending along a second direction, and the first semiconductor layer is connected to and integrally formed with the second semiconductor layer via an active layer of the driving transistor; an active layer of the drive transistor is located on a virtual line in the first direction of an active layer of the first reset transistor; the active layers of the compensation transistor and the data write transistor are located on both sides of the active layer of the driving transistor, and the active layer of the driving transistor is located on a side closer to the active layer of the first reset transistor; the active layers of the second emission control transistor and the first emission control transistor are located on both sides of the active layer of the driving transistor, and are located on a side of the active layer of the driving transistor that is away from the active layer of the first reset transistor; an active layer of the second reset transistor is located on a side of an active layer of the second light-emission control transistor that is farther away from an active layer of the compensation transistor; the compensation transistor includes a first gate extending along the first direction and a second gate extending along the second direction; the second gate is arranged in parallel in the first direction with a gate of the second light-emission control transistor and a gate of the second reset transistor, the gate extending along the second direction; a gate of the data write transistor extends along the second direction and is juxtaposed with a gate of the first light emission control transistor in the first direction; a gate of the first reset transistor extends along the second direction and is arranged in parallel with a gate of the drive transistor in the first direction; The display substrate of claim 8 , wherein the gate of the driving transistor is integral with the first plate of the storage capacitor.

10. a gate line, a light emission control signal line, a first reset signal line, and a second reset signal line extending in the second direction; a gate of the first reset transistor is connected to the first reset signal line and is formed integrally therewith; a second gate of the compensation transistor and a gate of the data write transistor are connected to the gate line and are integrally formed; a gate of the second light emission control transistor and a gate of the first light emission control transistor are connected to the light emission control signal line and are integrally formed; The display substrate of claim 9 , wherein a gate of the second reset transistor is connected to and integrally formed with the second reset signal line.

11. a data line connected to the active layer of the data write transistor and configured to provide a data signal; an orthogonal projection of the first power supply line on the base substrate at least locally overlaps with an orthogonal projection of an active layer of the first reset transistor on the base substrate and an orthogonal projection of an active layer of the drive transistor on the base substrate; The display substrate of claim 10 , wherein an orthogonal projection of the data line on the base substrate is located on a side of an orthogonal projection of the second semiconductor layer on the base substrate that is away from an orthogonal projection of the first power line on the base substrate.

12. the pixel driving circuit further includes a first via electrode connected to an active layer of the second light-emitting control transistor, an active layer of the second reset transistor, and a first electrode of the light-emitting device via a through hole; The display substrate of claim 11 , wherein the orthogonal projection of the first via electrode on the base substrate is located between the orthogonal projection of the active layer of the second reset transistor on the base substrate and the orthogonal projection of the active layer of the driving transistor on the base substrate.

13. 13. The display substrate of claim 12, wherein for each of the plurality of second pixel units, a positive projection of the second shielding connection portion on the base substrate is located between a positive projection of the active layer of the second reset transistor on the base substrate and a positive projection of the second power supply line on the base substrate, and at least locally overlaps with a positive projection of the second power supply line on the base substrate.

14. The display substrate of claim 13 , wherein, for each pixel unit group, the first shielding connection part is located between two first pixel units adjacent to each other in the first direction in each pixel unit group.

15. 13. The display substrate of claim 12, wherein the orthogonal projection of the first shielding connection portion on the base substrate is located between the orthogonal projection of the active layer of the second reset transistor on the base substrate and the orthogonal projection of the first power supply line on the base substrate, and at least locally overlaps with the orthogonal projection of the first power supply line on the base substrate.

16. The display substrate according to any one of claims 1 to 15, wherein the first shielding connection parts are located at both ends of each pixel unit group, and are connected to at least one of a plurality of first power lines corresponding to each of the pixel units.

17. The display substrate according to any one of claims 1 to 16, wherein the first shielding connection portion is located at one end of each pixel unit group, and is connected to at least one of a plurality of first power lines corresponding to the pixel unit group.

18. further comprising a fourth insulating layer, a first conductive layer, a second conductive layer and a third conductive layer; the first conductive layer includes the gate line, the second conductive layer includes a second plate of the storage capacitor, and the third conductive layer includes the first power line; In a direction perpendicular to the base substrate, the fourth insulating layer is located between the shielding layer and an active layer of the transistor; the first insulating layer is located between the active layer and the first conductive layer; the second insulating layer is located between the gate line and the second conductive layer; The display substrate of claim 12 , wherein the third insulating layer is located between the second plate of the storage capacitor and the third conductive layer.

19. The display substrate of claim 18 , wherein the first shielding connection part is located on the first conductive layer or the second conductive layer.

20. A display device including the display substrate according to any one of claims 1 to 19 and a sensor, the sensor is disposed on a second side of the display substrate and configured to receive light from a first side of the display substrate; A display device, wherein an orthogonal projection of the sensor on the base substrate at least locally overlaps with the first display area.

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