Display screen and electronic device

Abstract

A display screen (103) and an electronic device (100), which relate to the technical field of electronic devices. A display panel (10) of the display screen (103) comprises a gate control line (15) and a plurality of pixel groups (12) distributed in sequence, wherein the gate control line (15) is connected to pixel units (121) in a pixel group (12) by means of a gate driving circuit (131), and a gate control signal transmitted by the gate control line (15) can be transmitted to the gate driving circuit (131), thereby driving and controlling the light emission and turning-off of the pixel units (121) in the pixel groups (12) row by row. A first end (151) and a second end (152) of the gate control line (15) are both connected to a power supply chip, wherein a gate control signal of the power supply chip is introduced into the gate control line (15) from both the first end (151) and the second end (152), so that the gate control signal is introduced into the gate control line (15) from two opposite ends of the gate control line (15) so as to achieve dual-side driving, thereby reducing the voltage attenuation and resistance-capacitance delay of gate control signal transmission, improving a driving capability, and improving the driving effect on the plurality of pixel groups (12), which is conducive to improving the display effect and display uniformity of the display panel (10).

Description

Display screens and electronic devices

[0001] This application claims priority to Chinese Patent Application No. 202410816388.6, filed on June 21, 2024, entitled “Display screen and electronic device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electronic equipment technology, and in particular to a display screen and an electronic device. Background Technology

[0003] Display panels have become an indispensable functional component in electronic terminal devices such as mobile phones, tablets, and laptops. Display panels include driving circuits, which are used to drive and control the display. Among them, gate driven on array (GOA) technology, which integrates gate drivers on the array substrate, enables line-by-line scanning of the display panel. With advantages such as high integration and low manufacturing cost, it has gradually become a research hotspot.

[0004] For example, in an OLED display panel made using organic light-emitting diodes (OLEDs), the display panel may include gate control lines, gate driving circuits, and multiple pixel groups. The display panel may also include a display area and a peripheral area (non-display area) surrounding the display area. Multiple pixel units are located within the display area, while the gate control lines and gate driving circuits may be located within the peripheral area. Multiple pixel groups are sequentially arranged to form multiple rows. Each pixel group may include multiple pixel units, and a gate driving circuit is connected to each of the multiple pixel units in a pixel group. The peripheral area includes a bottom peripheral area and a top peripheral area, located on opposite sides of the display area. Typically, the first end of the gate control line is located within the bottom peripheral area and is electrically connected to the power supply chip via a driving chip within the bottom peripheral area. The second end of the gate control line extends towards the top peripheral area and is electrically connected to multiple gate driving circuits. The gate control signal output from the power supply chip is introduced into the gate control line from the first end within the bottom peripheral area and transmitted to the gate driving unit to achieve step-by-step driving control of multiple rows of pixel units.

[0005] However, the control signal of the gate control line is introduced from the first end in the bottom peripheral area and transmitted along with the gate control line to realize the driving control of each pixel unit in multiple pixel groups. The trace of the gate control line is relatively long, especially in electronic devices that can realize large-screen displays, which causes a long trace impedance, resulting in large voltage attenuation and RC delay, affecting the driving effect. Summary of the Invention

[0006] This application provides a display screen and electronic device that can reduce voltage attenuation and RC delay of the gate control signal, improve driving capability, and help improve the display effect and display uniformity of the display screen.

[0007] A first aspect of this application provides a display screen, including a display panel, the display panel including a display area and a first peripheral area adjacent in a first direction.

[0008] The display panel also includes gate control lines and multiple pixel groups located within the display area. The multiple pixel groups are arranged sequentially along a second direction, and each pixel group includes multiple pixel units arranged sequentially along a first direction, wherein the first direction intersects the second direction.

[0009] At least a first peripheral area is provided with a gate control line, which extends along a second direction and is electrically connected to multiple pixel units in at least one pixel group. The gate control line is used to transmit gate control signals to control the illumination or extinguishing of pixel units in the multiple pixel groups. The display screen may also include a driving circuit group, each driving circuit group including multiple gate driving circuits. One gate driving circuit is connected to multiple pixel units in one pixel group. Each driving circuit group is connected to at least one gate control line, and each gate control line is connected to at least one gate driving circuit in the driving circuit group, and then to each pixel unit in at least one pixel group.

[0010] The gate control line is used to receive the gate control signal output from the power chip of the electronic device. The gate control signal can be transmitted through the gate control line and along the gate control line to one or more gate drive circuits, thereby realizing the row-by-row drive control of pixel units in multiple pixel groups.

[0011] The gate control line includes a first end and a second end opposite to each other in a second direction. The first end and the second end are respectively used for electrical connection with the power supply chip. The gate control signal output by the power supply chip can be transmitted to the gate control line from the first end and the second end, respectively. That is, the gate control signal can be input from both the first end and the second end of the gate control line. The gate control signal can be introduced into the gate control line from the first end, transmitted along the gate control line to the second end, and transmitted to the gate driving circuit to drive the pixel units in multiple pixel groups row by row. Alternatively, the gate control signal can be introduced into the gate control line from the second end, transmitted along the gate control line to the first end, and transmitted to the gate driving circuit to drive the pixel units in multiple pixel groups row by row.

[0012] The gate control signal is introduced from opposite ends of the gate control line along the second direction and pushed against each other. The gate control signal is introduced from the first end and transmitted to the gate drive circuit. Voltage attenuation occurs in the gate control signal as it travels from the first end to the second end. Voltage attenuation also occurs in the gate control signal introduced from the second end as it travels along the gate control line to the gate drive circuit. However, the superposition of the two parts of the gate control signal ensures a high voltage for the gate control signal input to each gate drive circuit. This reduces voltage attenuation and RC delay of the gate control signal transmitted to the gate drive circuit, improves driving capability, and enhances driving uniformity and effect for multiple pixel groups, thereby improving the display panel's display effect and uniformity. It also helps reduce driving power consumption while maintaining the display's display effect.

[0013] In one possible implementation, the peripheral area also includes a second peripheral area and a third peripheral area, which are located on the outer sides of the display area in the second direction.

[0014] The first end of the gate control line is located within the second peripheral region, and the second end of the gate control line is located outside the third peripheral region on the side facing away from the display area. Under the condition that the gate control signal is introduced from both sides of the gate control line, the connection between the first end of the gate control line and the power chip requires minimal variation, is highly feasible, and helps reduce structural design difficulty and manufacturing costs.

[0015] In one possible implementation, the display screen further includes a first circuit board, with the second end of the gate control line electrically connected to the first circuit board. The first circuit board is used to electrically connect to the power chip, thereby realizing the electrical connection between the second end of the gate control line and the power chip. This implementation is simple in design and easy to manufacture and assemble.

[0016] In one possible implementation, a first conductive pad is provided on the second end of the gate control line, and a second conductive pad is provided on the first circuit board.

[0017] The display screen also includes a conductive adhesive layer. The first conductive pad and the second conductive pad are fixed and electrically connected by the conductive adhesive layer. The implementation method is simple and quick, highly feasible, and helps to reduce the difficulty of production.

[0018] In one possible implementation, the display screen further includes a driver chip located in the second peripheral region. A first end of the gate control line is electrically connected to the driver chip, which is used for electrical connection with a power supply chip. The driver chip can be electrically connected to the gate control line and can perform boost processing of the gate control signal, ensuring that the gate control signal meets the voltage range requirements of the gate drive circuit and guarantees the driving effect.

[0019] In one possible implementation, the display screen further includes a second circuit board, the driver chip is electrically connected to the second circuit board, the second circuit board is used to be electrically connected to a third circuit board on which a power chip is disposed, and the first circuit board is used to be electrically connected to the third circuit board, thereby enabling the first end of the gate control line to be electrically connected to the power chip on the third circuit board through the driver chip, the second circuit board and the third circuit board respectively.

[0020] In one possible implementation, the display panel further includes a substrate, which includes a first surface and a second surface opposite to each other. A display area and a peripheral area may be divided on the first surface side, and a driving chip, at least some gate control lines, and pixel units are respectively located on the first surface.

[0021] The first circuit board includes a first sub-circuit board and a second sub-circuit board. The first sub-circuit board is electrically connected to the second end of the gate control line. The first sub-circuit board is located adjacent to the third peripheral region, which facilitates connection and helps to reduce the impedance caused by the connection line.

[0022] The second circuit board is disposed adjacent to the second peripheral area, and at least a portion of the second sub-circuit board is located on the second surface side of the substrate, such that the second sub-circuit board and the substrate at least partially overlap in the thickness direction. One end of the second sub-circuit board is electrically connected to the first sub-circuit board, and the other end of the second sub-circuit board is used to electrically connect to a third circuit board disposed adjacent to the second circuit board, thereby achieving electrical connection between the first sub-circuit board and the third circuit board distributed on both sides of the display screen along the second direction without affecting the display effect of the display area.

[0023] In one possible implementation, the first and second sub-circuit boards each include flexible circuit boards. The ability of the first sub-circuit board to be bent reduces its space occupation in the second direction, thereby reducing the length of the display screen. The ability of the second sub-circuit board to be bent facilitates connection between the second and third circuit boards.

[0024] The second sub-circuit board is provided with a first connector, which is used for electrical connection with the third circuit board. Bending the first sub-circuit board can reduce the space occupied by the first sub-circuit board in the second direction, thereby reducing the space occupied by the entire display screen in the second direction.

[0025] In one possible implementation, the display screen further includes a second connector, through which the first sub-circuit board is electrically connected to the second sub-circuit board. The first and second sub-circuit boards can be molded separately and then assembled together via the second connector. Compared to an integrated structure of the first and second sub-circuit boards, the structure of the first and second sub-circuit boards is simpler, their individual molding process is simpler and easier to implement, and the placement flexibility of the first and second sub-circuit boards is relatively high, meeting various layout requirements.

[0026] In one possible implementation, a third connector is provided on the first circuit board, and a fourth connector is provided on the second circuit board;

[0027] The third and fourth connectors are used for electrical connections to two interconnected third circuit boards, respectively. This increases the flexibility of connecting the gate control line to the power chip and expands its applicability.

[0028] In one possible implementation, the peripheral area further includes a first peripheral area and a fourth peripheral area. In a first direction, the first and fourth peripheral areas are located on opposite sides of the display area, and gate control lines are distributed within each of the first and fourth peripheral areas. In this first direction, at least one gate driving circuit can be connected to each side of a pixel group. These gate driving circuits are connected to the power supply chip via gate control lines. Thus, the gate driving circuits on both sides of a pixel group can simultaneously provide gate control signals to the pixel units within that pixel group, enabling the driving control of the pixel units' light emission and extinguishing. This improves the uniformity of the pixel unit's brightness and enhances the display effect.

[0029] In one possible implementation, the gate control line includes one or more of a start signal line, a gate high voltage signal line, a gate low voltage signal line, and a clock signal line.

[0030] In one possible implementation, the gate control line includes a gate high voltage signal line and a gate low voltage signal line, which reduces the difficulty of gate control line structure design while ensuring that the display panel has good display uniformity.

[0031] A second aspect of this application provides an electronic device including a power chip, a mid-frame, and a display screen as described above, with the display screen fixed to the mid-frame. The mid-frame includes a middle plate and a frame, with the frame surrounding the middle plate. A second surface of the substrate of the display panel faces one side of the middle plate, and pixel units can be located on a first surface of the substrate to meet display requirements such as graphics. The power chip is electrically connected to a first terminal and a second terminal of the gate control line of the display screen, respectively, so that the gate control signal output by the power chip is transmitted to the gate control line through the first terminal and the second terminal, respectively.

[0032] In one possible implementation, the electronic device further includes a third circuit board, on which a power chip is disposed and electrically connected, and the third circuit board is electrically connected to the first and second circuit boards of the display screen, respectively.

[0033] The display screen, power chip, and third circuit board are located on one side of the middle board. In actual assembly, the display screen can be formed first, and then the display screen can be mounted on one side of the middle frame. The third circuit board and power chip are mounted on this side. The third circuit board can then be connected to the second and first circuit boards. The assembly method is simple and easy to operate.

[0034] In one possible implementation, the display panel and driver chip are located on one side of the middle plate, while the third circuit board and power chip are located on the side of the middle plate facing away from the display panel. The middle plate has a first through-hole and a second through-hole. A portion of the first circuit of the display screen passes through the first through-hole and is electrically connected to the third circuit board, and a portion of the second circuit board of the display screen passes through the second through-hole and is electrically connected to the third circuit board. Compared to having the display screen and third circuit board entirely located on one side of the middle plate, subtracting the third circuit board and the first circuit board between the second surface of the substrate and the middle plate helps to reduce the overall thickness of the display screen and the middle plate.

[0035] In one possible implementation, the electronic device further includes a hinge, and there are at least two mid-frames, each positioned on one side of the hinge. The two mid-frames are rotatably engaged via the hinge, and a display screen is mounted on the at least two mid-frames and the hinge. A power chip and a third circuit board are respectively housed within the two mid-frames, and a through-hole is provided on the hinge.

[0036] The electronic device also includes a fourth circuit board, which is electrically connected to the two third circuit boards respectively through a through-shaft hole.

[0037] A third aspect of this application provides a display panel including a display area and a first peripheral area adjacent in a first direction.

[0038] The display panel also includes gate control lines and multiple pixel groups located within the display area. The multiple pixel groups are arranged sequentially along a second direction, and each pixel group includes multiple pixel units arranged sequentially along a first direction, which intersects with the second direction.

[0039] A gate control line is provided in at least a first peripheral region, the gate control line extends along a second direction, and the gate control line is electrically connected to a plurality of pixel units in at least one pixel group. The gate control line includes a first end and a second end opposite to each other in the second direction, the first end and the second end being used for electrical connection with a power chip of an electronic device, and the gate control signal output by the power chip being transmitted from the first end and the second end to the gate control line, respectively.

[0040] By introducing the gate control signal from opposite ends of the gate control line along the second direction and superimposing the two gate control signals, a high voltage of the gate control signal input to each gate drive circuit can be ensured. This reduces voltage attenuation and RC delay of the gate control signal transmitted to the gate drive circuit, improves driving capability, and enhances driving uniformity and effect for multiple pixel groups, thereby improving the display effect and uniformity of the display panel.

[0041] In one possible implementation, the peripheral region further includes a second peripheral region and a third peripheral region, which are located on opposite sides of the display area in a second direction. The first end of the gate control line is located within the second peripheral region, and the second end of the gate control line is located outside the third peripheral region on the side facing away from the display area.

[0042] In one possible implementation, the peripheral area further includes a fourth peripheral area. In the first direction, the first peripheral area and the fourth peripheral area are located on the outer sides of the display area, respectively, and gate control lines are distributed in the fourth peripheral area.

[0043] In one possible implementation, the gate control line includes one or more of a start signal line, a gate high voltage signal line, a gate low voltage signal line, and a clock signal line. Attached Figure Description

[0044] Figure 1 is a schematic diagram of an electronic device in a folded state according to an embodiment of this application;

[0045] Figure 2 is a schematic diagram of the electronic device shown in Figure 1 in an intermediate state;

[0046] Figure 3 is a schematic diagram of the electronic device shown in Figure 1 in a flattened state;

[0047] Figure 4 is a schematic diagram of the disassembled structure of the electronic device shown in Figure 1;

[0048] Figure 5 is a schematic diagram of the split structure of the display screen in Figure 4;

[0049] Figure 6 is a front view of the display panel in Figure 5;

[0050] Figure 7 is a schematic diagram of the display panel in Figure 6;

[0051] Figure 8 is a schematic diagram of the routing of a gate control line in an electronic device in the related art;

[0052] Figure 9 is a schematic diagram of the circuit connection structure of the pixel unit, gate driving circuit and gate control line in the display panel of Figure 7.

[0053] Figure 10 is a schematic diagram of the gate control line in the display screen of another electronic device provided in this application;

[0054] Figure 10a is a schematic diagram of the gate control line in the display screen of another electronic device provided in an embodiment of this application;

[0055] Figure 11 is a schematic diagram of the connection between the gate control line and the first circuit board in Figure 10;

[0056] Figure 12 is a partially enlarged cross-sectional view of the connection between the gate control line and the first circuit board in Figure 11.

[0057] Figure 13 is a schematic diagram of the back structure of the display panel of the electronic device in Figure 10;

[0058] Figure 14 is a schematic diagram of the rear structure of a display screen in another electronic device provided in an embodiment of this application;

[0059] Figure 14a is a partial side view of another electronic device provided in an embodiment of this application;

[0060] Figure 14b is a schematic diagram of the assembly of the display screen and the middle plate of the middle frame in Figure 14a;

[0061] Figure 14c is a schematic diagram of the assembly of the display screen and the middle plate in another electronic device provided in an embodiment of this application;

[0062] Figure 15a is a schematic diagram of another connection structure between a display screen and a third circuit board provided in an embodiment of this application;

[0063] Figure 15b is a side view of the connection between the display screen and the third circuit board in Figure 15a.

[0064] Figure 16 is a schematic diagram of the assembly of the display screen and the middle plate of the middle frame in Figure 15b;

[0065] Figure 17 is a schematic diagram of the assembly of the display screen and the middle plate in another electronic device provided in an embodiment of this application;

[0066] Figure 18 is a schematic diagram of the assembly process of the display screen and the middle plate in Figure 17.

[0067] Explanation of reference numerals in the attached drawings: 100 - Electronic device; 101 - Hinge; 102 - Middle frame; 102a - First middle frame; 102b - Second middle frame; 103 - Display screen; 10 - Display panel; 11 - Substrate; 12 - Pixel group; 121 - Pixel unit; 1211 - Pixel circuit; 1212 - Sub-pixel; 13 - Driving circuit group; 131 - Gate driving circuit; 14 - Source driving circuit; 15 - Gate control line; 151 - First terminal; 152 - Second terminal; 1521 - First conductive pad; 16 - Data line; 17 - Driver chip; 19 - First circuit board; 191 - First sub-circuit board; 1911 - Second conductive pad; 192 - Second sub-circuit board; 111 - Conductive adhesive layer; 113 - First connector; 114 - Second connector; 115 - Mainboard connector; 116 - Fourth circuit board; 117 - Third connector; 118 - Fourth connector; 20 - Cover plate; 30 - Polarizing film; 40 - Protective film; 50 - Support film; 104 - Back cover; 105 - Main circuit board. Detailed Implementation

[0068] The terminology used in the implementation section of this application is for the purpose of explaining specific embodiments of this application only, and is not intended to limit this application.

[0069] The electronic devices provided in this application embodiment may include, but are not limited to, televisions, monitors, mobile phones, tablets, laptops, desktop computers, all-in-one computers, ultra-mobile personal computers (UMPCs), handheld computers, touch-screen TVs, walkie-talkies, netbooks, POS machines, personal digital assistants (PDAs), wearable devices (such as watches, bracelets, smartwatches, smart bracelets, etc.), virtual reality devices (VRs) and mixed reality (MRs) devices (such as VR glasses, AR glasses, AR helmets, VR helmets, MR helmets, etc.), in-vehicle devices, and other electronic devices with displays.

[0070] Electronic devices may include a mid-frame, and a display screen may be mounted on the mid-frame. The mid-frame can support and assemble the display screen, which is used to display images, text, videos, etc., and to provide users with an interactive interface.

[0071] The display screen can be an organic light-emitting diode (OLED) display screen. Of course, in some examples, the display screen can also be a micro organic light-emitting diode (MOLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a light-emitting diode (LED) display screen, a mini organic light-emitting diode (Mini LED) display screen, a micro organic light-emitting diode (Micro LED) display screen, a quantum dot light-emitting diode (QLED) display screen, a liquid crystal display (LCD), etc.

[0072] In this embodiment, an organic light-emitting diode (OLED) display screen is used as an example for illustration.

[0073] Electronic devices can be those with non-foldable displays. For example, a mobile phone can be a candybar phone, such as a horizontal or vertical screen candybar phone. For instance, a mobile phone may include a mid-frame with a flat outline, on which the display is mounted. The display may also have a flat structure. Neither the display nor the mid-frame can be folded.

[0074] Alternatively, the electronic device can also be a foldable display device. For example, a mobile phone can be a foldable foldable phone, such as a landscape foldable phone or a portrait foldable phone. For instance, a mobile phone can include at least two mid-frames that can rotate relative to each other and fold or unfold, with the display screen mounted on the at least two mid-frames. The display screen can be a flexible screen, possessing flexibility that allows it to be freely bent, rolled, and folded, enabling the display screen to fold or unfold along with the mid-frames.

[0075] The electronic device is a foldable electronic device. For example, if it is a foldable phone, the foldable phone can be one where the display folds outwards. Alternatively, the foldable phone can be one where the display folds inwards. Or, the foldable phone can be one where part of the display folds inwards and part of the display folds outwards, etc.

[0076] In this embodiment of the application, a foldable mobile phone with an inwardly folded display screen is used as an example for illustration. Figure 2 is a structural schematic diagram of the electronic device shown in Figure 1 in an intermediate state.

[0077] Figure 1 is a schematic diagram of an electronic device in a folded state according to an embodiment of this application.

[0078] Referring to Figures 1 and 2, the electronic device 100 may include a hinge 101, a middle frame 102, and a display screen 103. The number of middle frames 102 may be at least two. For example, if there are two middle frames 102, they may be a first middle frame 102a and a second middle frame 102b. The first middle frame 102a and the second middle frame 102b may be located on both sides of the hinge 101, and the first middle frame 102a and the second middle frame 102b are respectively connected to the hinge 101.

[0079] The display screen 103 can be mounted on the hinge 101 and the middle frame 102. For example, the display screen 103 can be located on the same side of the first middle frame 102a, the second middle frame 102b, and the hinge 101. The portion of the display screen 103 opposite to the first middle frame 102a (opposite in the thickness direction) can be laid flat on the first middle frame 102a, and the portion of the display screen 103 opposite to the second middle frame 102b can be laid flat on the second middle frame 102b. The portion of the display screen 103 opposite to the hinge 101 can be the bending area of ​​the display screen 103 (refer to the bending area 103a in Figure 3), and the extension direction of the bending area can be consistent with the axial direction of the hinge.

[0080] The pivot 101 can be a structural component used to connect two middle frames 102 and allow relative rotation between the two middle frames 102. The first middle frame 102a and the second middle frame 102b can be rotatably engaged through the pivot 101, allowing the first middle frame 102a and the second middle frame 102b to rotate relative to each other, thereby enabling the first middle frame 102a and the second middle frame 102b to be folded or unfolded. The display screen 103 can be folded or unfolded with the movement of the first middle frame 102a and the second middle frame 102b, thereby enabling the electronic device 100 to switch between a folded state and a flattened state.

[0081] The first middle frame 102a and the second middle frame 102b can be folded relative to each other to a closed state, as shown in Figure 1. For example, when the first middle frame 102a and the second middle frame 102b are in the closed state, they can be completely closed to be parallel to each other (a slight deviation is allowed). At this time, the electronic device 100 is in a closed state, also known as a folded state. The part of the display screen 103 opposite to the hinge 101 (the bending area of ​​the display screen) can be bent and is in a folded state.

[0082] Referring to Figure 2, the first middle frame 102a and the second middle frame 102b can rotate relative to each other (fold or unfold) to an intermediate state, so that the electronic device 100 is in an intermediate state. The portion of the display screen 103 opposite to the pivot 101 (the bending area of ​​the display screen) is also in an intermediate state as it is folded or unfolded.

[0083] Figure 3 is a schematic diagram of the electronic device shown in Figure 1 in a flattened state.

[0084] Referring to Figure 3, the first middle frame 102a and the second middle frame 102b can be unfolded relative to each other to an open state. For example, when the first middle frame 102a and the second middle frame 102b are in the open state, the unfolding angle between the first middle frame 102a and the hinge 101, and between the hinge 101 and the second middle frame 102b, can be approximately 180°. The electronic device 100 is in an open state, also known as a flattened state. The portion of the display screen 103 opposite to the hinge 101 (the bending area 103a of the display screen) is also opened and flattened, meaning the display screen 103 can be flattened into a plane approximately 180° in diameter.

[0085] It should be noted that the angles illustrated in the embodiments of this application are allowed to have slight deviations. For example, the unfolding angle (or the flattening angle of the display screen 103) of the electronic device 100 shown in FIG3 can be 180°, or it can be approximately 180°, such as 170°, 175°, 185° or 190°, etc.

[0086] The intermediate state shown in Figure 2 can be any state between the folded state and the flattened state. That is, the middle frame 102 and the display screen 103 of the electronic device 100 can switch between the flattened state (i.e., the open state) and the folded state (i.e., the closed state) through the movement of the pivot 101, thereby realizing the opening and closing of the electronic device 100.

[0087] For example, when the electronic device 100 is in a flattened state, rotating the first middle frame 102a and the second middle frame 102b towards each other and folding them relative to each other can switch the electronic device 100 from a flattened state to a folded state (or an intermediate state). When the electronic device 100 is in a folded state, rotating the first middle frame 102a and the second middle frame 102b away from each other and unfolding them relative to each other can switch the electronic device 100 from a folded state to a flattened state (or an intermediate state).

[0088] For example, in this embodiment of the application, as shown in FIG3, the width direction of the middle frame 102 (such as the first middle frame 102a) is taken as the x-direction, the length direction of the middle frame 102 is taken as the y-direction, and the thickness direction of the middle frame 102 is taken as the z-direction. The width direction, length direction, and thickness direction can intersect each other. For example, the middle frame 102 can be a rectangular flat plate structure, and the width direction, length direction, and thickness direction can be perpendicular to each other.

[0089] It is understood that the length, width, and thickness in the embodiments of this application are for the convenience of description only and do not imply any limitation on the size. For example, the length can be greater than, equal to, or less than the width.

[0090] Of course, in some other examples, the middle frame 102 can also be a flat structure in the shape of a square, circle, ellipse, rounded rectangle, etc.

[0091] It should be noted that the electronic device 100 may include only two middle frames 102. For example, the number of the first middle frame 102a and the second middle frame 102b may both be one, so that the electronic device 100 is in a folded state, with the first middle frame 102a and the second middle frame 102b folded relative to each other into two layers. For example, the electronic device 100 includes a first middle frame 102a, a second middle frame 102b, and a pivot 101. The first middle frame 102a and the second middle frame 102b are rotatably connected by the pivot 101. When the first middle frame 102a and the second middle frame 102b are folded relative to each other in the folded state, the electronic device 100 has a form of two layers of middle frames 102 stacked together (see Figure 1).

[0092] Alternatively, the electronic device 100 may include two or more middle frames 102, such as the number of at least one of the first middle frame 102a and the second middle frame 102b, and the number of the pivots 101 may also be multiple. Adjacent first middle frames 102a and second middle frames 102b can be connected by a pivot 101, so that the electronic device 100 can be folded into a multi-layered form.

[0093] For example, the electronic device 100 may include two first middle frames 102a, one second middle frame 102b, and two pivots 101. The two first middle frames 102a are located on both sides of the second middle frame 102b, and the two first middle frames 102a are rotatably connected to the second middle frame 102b through a pivot 101. One of the first middle frames 102a can be folded relative to the second middle frame 102b, and the other first middle frame 102a can also be folded relative to the second middle frame 102b, so that the electronic device 100 is in a folded state, with the first middle frames 102a and the second middle frame 102b folded relative to each other to form a three-layer stacked middle frame 102. When one of the first middle frames 102a and the second middle frame 102b are unfolded relative to each other to a flattened state, the electronic device 100 is in a flattened state.

[0094] For a foldable electronic device with an outward-folding display, the display 103 can be disposed on the outer surfaces of the first middle frame 102a, the second middle frame 102b, and the hinge 101. For a foldable electronic device with an inward-folding display, the display 103 can be disposed on the inner surfaces of the first middle frame 102a, the second middle frame 102b, and the hinge 101.

[0095] When the electronic device 100 is in a folded state, the two adjacent and opposite surfaces of the first middle frame 102a and the second middle frame 102b can be the inner surfaces of the first middle frame 102a and the second middle frame 102b, respectively. The surface of the pivot 101 that is on the same side as the inner surfaces of the first middle frame 102a and the second middle frame 102b is the inner surface of the pivot 101. The two opposite surfaces of the first middle frame 102a and the second middle frame 102b are the outer surfaces of the first middle frame 102a and the second middle frame 102b, respectively. The surface of the pivot 101 that is on the same side as the outer surfaces of the first middle frame 102a and the second middle frame 102b is the outer surface of the pivot 101.

[0096] Alternatively, in some examples, such as when there are two or more middle frames 102, a portion of the display screen 103 may be located on the outer surface of a portion of the middle frame 102, and a portion of the display screen 103 may be located on the inner surface of a portion of the middle frame 102. For example, in the example described above where the electronic device 100 includes two first middle frames 102a, one second middle frame 102b, and two hinges 101, the display screen 103 is disposed on the two first middle frames 102a, one second middle frame 102b, and the hinge 101. For example, a portion of the display screen 103 may be located on the inner surface of one of the first middle frames 102a, one of the hinges 101, and the second middle frame 102b, and a portion of the display screen 103 may be located on the outer surface of the other first middle frame 102a.

[0097] In this embodiment, the electronic device 100 includes two frames, a first frame 102a and a second frame 102b, and the first frame 102a and the second frame 102b are rotated together by a pivot 101.

[0098] Figure 4 is a schematic diagram of the disassembled structure of the electronic device shown in Figure 1.

[0099] Referring to Figure 4, the electronic device 100 may also include a back cover 104. The display screen 103 and the back cover 104 may be located on opposite sides of the middle frame 102 and the pivot 101 along the thickness direction (z direction). The back cover 104, the display screen 103 and the middle frame 102 together form a receiving space, which can be used to assemble and receive various structural components of the electronic device 100.

[0100] The side of the display screen 103 facing away from the back cover 104 can serve as the display surface of the electronic device 100. The back cover 104 can serve as the exterior cover of the back of the electronic device 100, protecting the various structural components within the storage space of the electronic device 100 and enhancing the aesthetics of the electronic device 100.

[0101] The middle frame 102 may include a middle plate and a side frame. For example, the first middle frame 102a may include a first middle plate 1021 and a first side frame 1022, with the first side frame 1022 surrounding the outer periphery of the first middle plate 1021. The second middle frame 102b may also include a second middle plate 1023 and a second side frame 1024, with the second side frame 1024 surrounding the outer periphery of the second middle plate 1023. The pivot 101 may be connected to the first middle plate 1021 and the second middle plate 1023 respectively. The middle plate provides an assembly area for various structural components and enhances the strength of the middle frame.

[0102] The display screen 103 is disposed on the middle frame 102. For example, part of the display screen 103 can be fixed to the frame and part of the display screen 103 can be fixed to the middle plate.

[0103] It should be noted that the middle plate and the frame can be molded separately, and the middle plate and the frame can be fixed together by welding, snap-fitting, gluing, etc. Alternatively, the middle plate and the frame can also be molded as a single piece.

[0104] The electronic device 100 may also include a main circuit board, a battery, a charging management module, and a power management module (not shown in the figure), and the main circuit board, battery, charging management module, and power management module may be fixed in the aforementioned accommodating space.

[0105] The main circuit board can be used to realize the electrical connection or electrical insulation between various electronic components within an electronic device. For example, the main circuit board may include a processor, which may include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, a display processing unit (DPU), and / or a neural network processing unit (NPU), etc. The controller can be the central nervous system and command center of the electronic device 100. The controller can generate operation control signals based on instruction opcodes and timing signals to control instruction fetching and execution. The processor may also include memory for storing instructions and data.

[0106] The processor may include one or more interfaces, which can be used to connect a charger to charge the electronic device 100, and the interfaces can also be used to enable data transmission between the electronic device 100 and external devices, such as connecting headphones, a projection device, etc.

[0107] The charging management module receives charging input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging examples, the charging management module receives charging input from the wired charger via an interface. In some wireless charging embodiments, the charging management module receives wireless charging input via the wireless charging coil of the electronic device 100. The charging management module can charge the battery and can also supply power to the electronic device 100 via the power management module.

[0108] The power management module connects the battery, charging management module, and processor. It receives input from the battery and / or charging management module to power the processor, memory, display, camera module, and other components. The power management module can also monitor parameters such as battery capacity, battery cycle count, and battery health status (leakage current, impedance).

[0109] In some examples, the power management module may be located within the processor on the main board. In other examples, the power management module and the charging management module may be located in the same device.

[0110] The first middle frame 102a, a portion of the back cover 104, and a portion of the display screen 103 can form a receiving cavity, and the second middle frame 102b, a portion of the back cover 104, and a portion of the display screen 103 can form another receiving cavity, both of which can be used to accommodate the aforementioned electronic components such as the main circuit board, battery, power management module, and charging management module. In some examples, the electronic device may include two main circuit boards, one of which may be located within the first middle frame 102a to achieve electrical connection or electrical insulation between the electronic components within the first middle frame 102a, and the other main circuit board may be located within the second middle frame 102b to achieve electrical connection or electrical insulation between the electronic components within the second middle frame 102b.

[0111] The electronic device also includes a through-shaft circuit board (not shown in the figure), which is used to realize electrical connection between electronic devices located in the receiving cavities enclosed by the two middle frames. For example, a through-shaft hole may be provided on the shaft, and the through-shaft circuit board may be disposed in the through-shaft hole, such that one end of the through-shaft circuit board can be located in the receiving cavity enclosed by the first middle frame, and the other end of the through-shaft circuit board can pass through the through-shaft hole and be located in the receiving cavity enclosed by the second middle frame, thereby realizing electrical connection between the electronic devices in the two middle frames.

[0112] It is understandable that the through-shaft circuit board is a flexible circuit board. When the first middle frame 102a and the second middle frame 102b rotate relative to each other to fold or unfold, the through-shaft circuit board can bend along with the rotation of the first middle frame 102a and the second middle frame 102b.

[0113] The structures illustrated in the embodiments of this application do not constitute a specific limitation on the electronic device 100. In other embodiments of this application, the electronic device 100 may include more or fewer components than illustrated, or combine some components, or split some components, or arrange the components differently. For example, the electronic device 100 may also include a communication module, a camera module (e.g., a front-facing camera and a rear-facing camera), a microphone, a speaker, a flash, and other devices.

[0114] Figure 5 is a schematic diagram of the split structure of the display screen in Figure 4.

[0115] Referring to Figure 5, the display screen 103 includes a display panel 10 and a cover plate 20. The display panel 10 is used to realize the display functions of the display screen 103. The length, width and thickness directions of the display panel 10 can correspond to the length, width and thickness directions of the middle frame 102, respectively, such as the y direction, x direction and z direction in Figure 5.

[0116] The cover plate 20 can be a light-transmitting plate structure; for example, the cover plate 20 can be a transparent glass plate. The cover plate 20 is disposed on one side of the display panel 10. For example, in the thickness direction of the electronic device 100, the cover plate 20 can be disposed on the side of the display panel 10 facing away from the middle plate (or rear cover), and the cover plate 20 can cover the side of the display panel 10 facing away from the middle plate, thus protecting the display panel 10. For example, the size of the cover plate 20 can be greater than or equal to the size of the display panel 10.

[0117] The display screen 103 may also include a polarizer 30, which can be disposed between the cover plate 20 and the display panel 10. The polarizer 30 can selectively filter out light from certain directions, allowing light from specific directions to pass through. The polarizer 30 can adjust the direction of light propagation, adjust display brightness, contrast, etc., and can also reduce reflection and glare, thereby improving visual clarity.

[0118] For example, the polarizer 30 and the cover plate 20 can be fixedly assembled by adhesive bonding. For instance, there can be an optical adhesive layer (not shown in the figure) between the cover plate 20 and the polarizer 30. The optical adhesive layer can be an adhesive layer formed by optical clear adhesive (OCA) or the like. The cover plate 20 and the polarizer 30 are bonded together by the optical adhesive layer.

[0119] The polarizer 30 and the display panel 10 can also be fixed together by adhesive bonding. For example, there can be an optical adhesive layer between the polarizer 30 and the display panel 10, so that the polarizer 30 and the display panel 10 can be fixed together by the optical adhesive layer.

[0120] Of course, in other examples, the cover plate 20 and the polarizer 30, and the polarizer 30 and the display panel 10 can be bonded and fixed in other ways. For example, the cover plate 20, the polarizer 30 and the display panel 10 can be bonded and fixed by hot pressing.

[0121] The display screen 103 may further include a protective film 40 and a support film 50. The protective film 40 and the support film 50 can be sequentially stacked on the side of the display panel 10 facing away from the cover plate 20. That is, in the thickness direction, the cover plate 20, polarizer 30, display panel 10, protective film 40, and support film 50 can be sequentially stacked. The protective film 40 can cover the side of the display panel 10 facing away from the cover plate 20, and the protective film 40 plays a protective role for the display panel 10. The support film 50 can provide a certain degree of support and reinforcement for the display panel 10, thereby improving the overall strength of the display screen 103.

[0122] For example, the protective film 40 and the display panel 10 can be fixedly assembled by adhesive bonding. For instance, there can be a pressure-sensitive adhesive layer between the protective film 40 and the display panel 10. The matte adhesive layer can be an adhesive layer formed by pressure-sensitive adhesives (PSA) or the like. The protective film 40 and the display panel 10 can be bonded and fixed together by the matte adhesive layer.

[0123] The protective film 40 and the support film 50 can also be fixed together by adhesive bonding. For example, the protective film 40 and the support film 50 can also have a pressure-sensitive adhesive layer, so that the protective film 40 and the support film 50 can be bonded together by the pressure-sensitive adhesive layer.

[0124] Figure 6 is a front view of the display panel in Figure 5.

[0125] Referring to Figure 6, the display panel 10 may include a display area AA and a peripheral area BB. Images and other data can be displayed within the display area AA. The peripheral area BB may surround the outside of the display area AA. For example, if the outline shape of the display area AA is rectangular, the outline shape of the peripheral area BB may be a square ring, surrounding the outer perimeter of the display area AA. The peripheral area BB may be a non-display area, meaning it may not be used for displaying images or other data.

[0126] For example, the peripheral area BB may include a first peripheral area 10c, a second peripheral area 10a, a third peripheral area 10b, and a fourth peripheral area 10d. For instance, in a first direction, the first peripheral area 10c and the fourth peripheral area 10d may be located on the outer sides of the display area AA, respectively; in a second direction, the second peripheral area 10a and the third peripheral area 10b may be located on the outer sides of the display area AA, respectively. The first and second directions intersect; for example, the first direction may be perpendicular to the second direction. The first direction may be aligned with the width direction of the display panel (x-direction in the figure), and the second direction may be aligned with the length direction of the display panel (y-direction in the figure), so that the second peripheral area 10a, the third peripheral area 10b, the first peripheral area 10c, and the fourth peripheral area 10d form a ring-shaped area surrounding the circumference of the display area AA.

[0127] Of course, in some examples, the first direction can be consistent with the length direction of the display panel, and the second direction can be consistent with the width direction of the display panel. The setting can be selected according to the specific needs of the display design.

[0128] The display panel 10 may also have a bending region 10e, which may substantially coincide with the bending region 103a of the display screen 103 in the electronic device in the thickness direction of the display screen. The extending direction of the bending region 10e is consistent with the axis of rotation of the electronic device.

[0129] Figure 7 is a schematic diagram of the display panel in Figure 6.

[0130] Referring to Figure 7, the display panel 10 may include a substrate 11 and a plurality of pixel groups 12. The substrate 11 can serve as the main support structure of the display panel 10. The substrate 11 may include a first surface and a second surface (not shown in the figure) that are opposite to each other. For example, the first surface and the second surface may be opposite to each other in the thickness direction. For example, a display area AA and a peripheral area BB may be divided on the first surface side.

[0131] Multiple pixel groups 12 are also disposed on the substrate 11, such as multiple pixel groups 12 located on the first surface of the substrate 11, and multiple pixel groups 12 located within the display area AA. The multiple pixel groups 12 can be arranged sequentially along the second direction (y-direction), as shown in Figure 7. Taking the number of pixel groups 12 as n as an example, where n is greater than 1, the n pixel groups 12 can be respectively a first pixel group 122, a second pixel group 123, a third pixel group 124, a fourth pixel group 125, ..., an nth pixel group 126, arranged sequentially in the second direction (y-direction). For example, the first pixel group 122 can be closer to the third peripheral area 10b, and the nth pixel group 126 can be closer to the second peripheral area 10a.

[0132] Each pixel group 12 may include multiple pixel units 121, which can serve as the main light-emitting units of the display panel 10 and generate light. For example, multiple pixel units 121 can generate red, green, and blue primary colors of light respectively, forming a three-primary-color light model (RGB color model, or RGB mode for short), thereby constituting colors for display.

[0133] Multiple pixel units 121 in each pixel group 12 can be arranged in a row along the first direction (x direction), and the distribution positions of multiple pixel units 121 in any two pixel groups 12 can correspond one-to-one in the second direction, so that multiple pixel units 121 in the display area AA can form an array arranged in both the second and first directions.

[0134] Each pixel unit 121 may include a pixel circuit 1211 and a sub-pixel 1212 (as shown in FIG9), wherein the sub-pixel 1212 may be an organic light-emitting diode. For example, the multiple sub-pixels 1212 of the multiple pixel units 121 may include multiple red light pixels, multiple green light pixels and multiple blue light pixels, wherein the red light pixels, green light pixels and blue light pixels may emit red light, green light and blue light respectively.

[0135] The pixel circuit 1211 is electrically connected to the sub-pixel 1212. The pixel circuit 1211 can drive and control the sub-pixel 1212 to emit light and turn off, thereby enabling the display panel 10 to display images and the like.

[0136] The pixel circuit 1211 may include one or more thin film transistors (TFTs) (not shown in the figure). The thin film transistor is a field-effect transistor. The three electrodes of the thin film transistor can be the source, the gate, and the drain. The thin film transistor can control its own conduction and turn-off by inputting a gate drive signal from the gate, thereby realizing the control of the organic light-emitting diode, and thus realizing the driving control of the light emission and extinguishing of the sub-pixel 1212.

[0137] Referring again to Figure 7, the display panel 10 further includes a gate driving circuit 131 and a source driving circuit 14. The gate driving circuit 131 provides a gate driving signal to the pixel circuit 1211, and the source driving circuit 14 provides a source driving signal to the pixel circuit 1211. The gate driving circuit 131 and the source driving circuit 14 may also be located on the first surface of the substrate 11 and respectively within the peripheral region BB. For example, the gate driving circuit 131 may be located within the peripheral region BB outside the display area AA along the first direction, such as within the first peripheral region 10c and the fourth peripheral region 10d. The source driving circuit 14 may be located within the peripheral region BB outside the display area AA along the second direction, such as within the second peripheral region 10a.

[0138] For example, the gate drive circuit 131 can be integrated on the substrate 11 using gate drive technology (GOA technology). The gate drive circuit 131 may include multiple cascaded shift registers (SRs) to perform functions such as data storage, serial-to-parallel data conversion, data operation and processing.

[0139] There can be multiple gate driving circuits 131. For example, the display panel 10 may include several driving circuit groups 13, each driving circuit group 13 may include multiple gate driving circuits 131, and the number of gate driving circuits 131 in each driving circuit group 13 may be the same as the number of pixel groups 12. One gate driving circuit 131 in each driving circuit group 13 is connected to one pixel group 12 to provide gate driving signals to multiple pixel units 121 in the pixel group 12. For example, the gate driving circuits 131 in each driving circuit group 13 may also be arranged sequentially along the second direction, and the gate driving circuits 131 and the pixel units 121 connected to the gate driving circuits 131 may be distributed in the first direction. In each gate driving circuit group 13, two adjacent gate driving circuits 131 can be connected by a connecting line 17 (as shown in FIG. 9), that is, multiple gate driving circuits 131 arranged sequentially along the second direction are connected sequentially to realize row-by-row driving of multiple pixel groups 12 by multiple gate driving circuits.

[0140] For example, the driving circuit group 13 can be distributed in the peripheral area BB outside the two sides of the display area AA along the first direction. For example, the display panel 10 can include multiple driving circuit groups 13, which can be symmetrically distributed in the peripheral area BB outside the two sides of the display area AA along the first direction. That is, the multiple driving circuit groups 13 can be evenly distributed (e.g., the number of driving circuit groups 13 is evenly distributed) in the first peripheral area 10c and the fourth peripheral area 10d. One gate driving circuit 131 in each driving circuit group 13 is connected to a pixel group 12. In the first direction, at least one gate driving circuit 131 can be connected to both sides of a pixel group 12. Through the gate driving circuits 131 on both sides of a pixel group 12, gate control signals can be provided to the pixel unit 121 in the pixel group 12 at the same time to realize the driving control of the light emission and extinguishing of the pixel unit 121, which helps to improve the uniformity of the light emission brightness of the pixel unit 121 and improve the display effect.

[0141] For example, referring to Figure 7, the display panel 10 may include two driving circuit groups 13, such as driving circuit group 13a and driving circuit group 13b, respectively. Driving circuit group 13a and driving circuit group 13b may be located in the first peripheral region 10c and the fourth peripheral region 10d, respectively. Multiple gate driving circuits 131 in driving circuit group 13a may be arranged sequentially along the second direction, and one gate driving circuit 131 is connected to one pixel group 12. Multiple gate driving circuits 131 in driving circuit group 13b may also be arranged sequentially along the second direction, and one gate driving circuit 131 is connected to one pixel group 12.

[0142] Taking the first pixel group 122 as an example, in the first direction, two gate driving circuits 131 are connected to both sides of the first pixel group 122 respectively, such as gate driving circuit 131a in driving circuit group 13a and gate driving circuit 131b in driving circuit group 13b. Gate driving circuit 131a and gate driving circuit 131b can simultaneously provide gate driving signals to the pixel circuit in the first pixel group 122, thereby realizing the driving control of the pixel unit 121 in the first pixel group 122.

[0143] Of course, in some examples, the display panel 10 may also include two or more driving circuit groups 13 (see FIG11). The number of driving circuit groups 13 may be even. For example, multiple driving circuit groups 13 may be evenly distributed in the first peripheral region 10c and the fourth peripheral region 10d, so that multiple driving circuit groups 13 are distributed in the first peripheral region 10c and multiple driving circuit groups 13 are distributed in the fourth peripheral region 10d.

[0144] Alternatively, in some examples, the drive circuit group 13 may be located only in the peripheral area BB outside one side of the display area AA along the first direction, such as in one of the first peripheral area 10c and the fourth peripheral area 10d.

[0145] Referring again to Figure 7, the display panel 10 may further include a gate control line 150. The gate control line 150 may be located on a first surface of the substrate 11. The gate control line is used to transmit gate control signals and is connected to a gate driving circuit. The gate driving circuit can output a gate driving signal according to the gate control signal. Each driving circuit group is connected to at least one gate control line 150. Each gate control line 150 is electrically connected to at least one gate driving circuit 131 in the driving circuit group 13, and then to at least one pixel unit 121 in a pixel group 12. The power supply chip of the electronic device is electrically connected to the gate control line 150. The power supply chip can output a gate control signal, which is transmitted to the gate control line 150 and then to the gate driving circuit 131 to achieve driving control of the pixel units 121 in multiple pixel groups 12.

[0146] The gate control signals output by the power chip may include start voltage (STV), gate high voltage (VGH), gate low voltage (VGL), and clock (CLK).

[0147] The start signal can be used as the start input signal or as an initial input voltage.

[0148] The gate high voltage signal is the positive source voltage required in the gate driving circuit, and the gate low voltage signal is the negative source voltage required in the gate driving circuit. The gate high voltage signal and gate low voltage signal can serve as the gate turn-on voltage or gate turn-off voltage for a thin-film transistor (TFT). For different TFTs, the gate turn-on or turn-off functions corresponding to the gate high voltage signal and gate low voltage signal can differ. For example, for an n-type substrate, p-channel (positive channel metal oxide semiconductor, PMOS) TFT, the gate low voltage signal is the gate turn-on voltage, and the gate high voltage signal is the gate turn-off voltage. For an N-type metal oxide semiconductor (NPOMS) TFT, the gate high voltage signal is the gate turn-on voltage, and the gate low voltage signal is the gate turn-off voltage.

[0149] Timing signals are used to control the timing of light emission and extinguishing of pixel units within each pixel group.

[0150] The display panel may include start signal lines, gate high voltage signal lines, gate low voltage signal lines, and clock signal lines, etc. The start signal lines, gate high voltage signal lines, gate low voltage signal lines, and clock signal lines are used to transmit the aforementioned start signal, gate high voltage signal, gate low voltage signal, and timing signal, respectively. The start signal lines, gate high voltage signal lines, gate low voltage signal lines, and clock signal lines can all serve as gate control lines 150 of the display panel 10, used to transmit gate control signals to the gate drive circuit 131, thereby driving and controlling the pixel units 121.

[0151] Of course, in some other examples, the power chip can also output other types of gate control signals, and the display panel can also include other types of gate control lines.

[0152] For example, each gate driving circuit in a driving circuit group is connected to gate control lines 150, such as gate high voltage signal line, gate low voltage signal line, and clock signal line, and then connected to a power supply chip. The gate high voltage signal, gate low voltage signal, clock signal, etc., output by the power supply chip are transmitted along the gate control lines 150 and sequentially transmitted to each gate driving circuit 131 and the corresponding connected pixel group 12.

[0153] In a driving circuit group, multiple gate driving circuits 131 are arranged in a row along the second direction. The gate driving circuit closest to the second peripheral region or the third peripheral region can be connected to the power chip through the start signal line, which can realize row-by-row driving of the light emission or extinguishing of each pixel unit 121 in multiple pixel groups 12.

[0154] Referring to Figure 7, taking the driving circuit group 13a as an example, the row-by-row driving control of pixel units 121 in multiple pixel groups 12 is explained. The driving control of pixel units in the other driving circuit groups in the multiple driving circuit groups can be deduced by analogy.

[0155] For example, taking gate control line 150 as the start signal line, the gate control signal output by the power chip includes a start signal. The power chip can be connected to the gate drive circuit 131a, which is closest to the third peripheral region 10b in the drive circuit group 13a, through the gate control line 150. The start signal output by the power chip can be transmitted to the gate drive circuit 131a through the gate control line 150. The gate drive circuit 131a outputs a gate drive signal, which can drive the first pixel group 122 connected to the gate drive circuit 131a. The illumination or extinguishing of pixel unit 121 can also serve as the start signal for the next row of pixel units (the next pixel group along the second direction), which is transmitted to the gate driving circuit 131c via the connecting line 17. The gate driving circuit 131c then drives and controls the illumination or extinguishing of pixel units in the corresponding connected second pixel group 123. This process is repeated sequentially, from the pixel group closest to the third peripheral region 10b to the pixel group closest to the second peripheral region 10a, thereby achieving row-by-row driving of the illumination or extinguishing of pixel units 121 in multiple pixel groups 12.

[0156] Of course, in some examples, the power chip can be connected to the gate drive circuit of the drive circuit group 13a that is closest to the second peripheral region 10a through the gate control line 150, that is, the pixel group closest to the second peripheral region 10a to the pixel group closest to the third peripheral region 10b can be driven and controlled line by line.

[0157] The display screen may also include a driver chip (not shown in the figure), a power chip that can be electrically connected to the driver chip, and the driver chip that can be electrically connected to the gate control line 15. The driver chip can perform boost processing of the gate control signal, so that the gate control signal can meet the voltage range requirements of the gate drive circuit 131 and ensure the driving effect.

[0158] For example, the power supply chip can be distributed on the outside of the substrate 11 of the display panel 10, and the driving chip can be integrated on the first surface of the substrate 11 of the display panel.

[0159] Alternatively, in some examples, the display screen may not include a driver chip, the power chip may integrate a boost circuit, or the substrate 11 of the display panel 10 may integrate a boost circuit, etc., to achieve boost processing of the gate control signal output by the power chip.

[0160] Figure 8 is a schematic diagram of the routing of a gate control line in an electronic device in the related art.

[0161] To achieve electrical connection between the power chip (or driver chip) and the gate drive circuit, as shown in Figure 8, the driver chip 202 is usually located in the bottom peripheral area 200a on one side of the display area AA. The power chip (not shown in the figure) can be integrated on the first circuit board 204. The first circuit board 204 can be disposed adjacent to the driver chip 202 and the bottom peripheral area 200a. The power chip can be electrically connected to the driver chip 202 and the first circuit board 204 through the second circuit board 203.

[0162] Gate control line 201 is located within peripheral region BB. For example, the left peripheral region 200c and the right peripheral region 200d contain a driving circuit group (not shown in the figure) and gate control line 201. Gate control line 201 may include a first end 201a and a second end 201b. The first end 201a of gate control line 201 may be located within the bottom peripheral region 200a and electrically connected to the driving chip 202 within the bottom peripheral region 200a. The second end of gate control line 201 extends towards the top peripheral region 200b and is electrically connected to the gate driving circuit in the driving circuit group, so that gate control line 201 can be electrically connected to the pixel unit in the pixel group through the gate driving circuit, thus realizing the electrical connection between the driving chip 202 (or power chip) and the pixel unit in the pixel group. The second end 201b of gate control line 201 may extend to both sides of the row of pixel units closest to the top peripheral region 200b.

[0163] For example, with the gate control line 201 as the gate low voltage signal line, the gate low voltage signal after being boosted by the driver chip 202 is input from the first end 201a of the gate control line 201, transmitted along the gate control line 201 to the second end 201b, and sequentially transmitted to multiple gate driving circuits, thereby driving the pixel units in multiple pixel groups to light up or turn off. That is, the gate control signal is introduced from the first end 201a of the gate control line 201 to the second end 201b and transmitted to the gate driving circuit.

[0164] As users' demands for larger display sizes in electronic devices continue to increase, electronic devices with larger screen sizes have become widely popular, such as foldable electronic devices that have a large display size when unfolded. The increase in screen size also leads to a larger display panel size, resulting in longer trace lengths for the gate control lines.

[0165] This allows the gate control signal to be introduced from the first end of the gate control line and transmitted to the gate drive circuit to drive the pixel units in multiple pixel groups line by line. During the transmission on the gate control line, the trace impedance is relatively high, resulting in significant voltage attenuation of the gate control signal transmitted to the gate drive circuit and a large RC delay. Understandably, the longer the path on the gate control line (the farther away from the introduction end), the more severe the voltage attenuation. For example, compared to the low gate voltage signal transmitted to the gate drive circuit closest to the first end, the voltage attenuation due to the trace impedance results in a lower low gate voltage signal transmitted to the gate drive circuit closest to the second end. This affects the driving effect of the gate drive circuit on the corresponding connected pixel units, thus affecting the uniformity of the display.

[0166] Based on this, embodiments of this application provide a display panel and a display screen, wherein at least a gate control line is disposed in a first peripheral area, and a plurality of pixel groups are arranged sequentially in the display area. The gate control line is electrically connected to each pixel unit in the pixel group through a gate driving circuit. The gate control signal transmitted by the gate control line can be transmitted to the gate driving circuit, thereby driving and controlling the pixel units in the plurality of pixel groups to emit light or turn off. The first end and the second end of the gate control line are respectively electrically connected to the power chip of the electronic device. The gate control signal output by the power chip can be introduced into the gate control line from the first end and the second end respectively, so that the gate control signal is introduced from opposite ends of the gate control line and pushed back. The gate control signal is introduced from the first end and transmitted to the gate driving circuit, and the gate control signal will also undergo voltage attenuation. The gate control signal introduced from the second end is transmitted along the gate control line to the gate driving circuit and will also undergo voltage attenuation, but the superposition of the two parts of the gate control signal can ensure that the voltage of the gate control signal input to each gate driving circuit is high. This reduces voltage attenuation and RC delay of the gate control signal transmitted to the gate drive circuit, improves driving capability, and enhances driving uniformity and effect for multiple pixel groups, thereby improving the display effect and display uniformity of the display panel.

[0167] Figure 9 is a schematic diagram of the circuit connection structure of pixel units, gate driving circuit and gate control line in the display panel of Figure 7.

[0168] In the display panel provided in this application embodiment, in the first direction (x direction), at least one of the two peripheral areas located outside the two sides of the display area is provided with a gate control line, such as at least the first peripheral area is provided with a gate control line.

[0169] It is understandable that the gate control line and the gate drive circuit can be located in the same peripheral region to achieve electrical connection between the gate control line and the gate drive circuit.

[0170] In the first direction, gate driving circuits (driving circuit groups) are respectively arranged in the peripheral areas outside the two sides of the display area, and gate control lines can be respectively arranged in the peripheral areas outside the two sides. For example, referring to Figure 9, taking the example that gate driving circuits 131 are respectively arranged in the first peripheral area 10c and the fourth peripheral area 10d, gate control lines 150 can be distributed in the first peripheral area 10c and the fourth peripheral area 10d, and the gate driving circuits 131 in the first peripheral area 10c and the fourth peripheral area 10d are respectively connected to the gate control lines 150.

[0171] If the gate driving circuit 131 is provided only in the peripheral area BB outside the display area AA, the gate control line 150 can be provided only in this peripheral area BB. For example, the gate driving circuit 131 is provided in the first peripheral area 10c, and the gate control line 150 is provided in the first peripheral area 10c.

[0172] Among them, at least one of the gate control lines 150 is a gate control line 15. For example, as shown in FIG9, all the gate control lines 150 connected to the driving circuit group 13a can be gate control lines 15, such as the start signal line 153, the gate high voltage signal line 154, the gate low voltage signal line 155, the clock signal line 156a and the clock signal line 156b, which are gate control lines 15 respectively.

[0173] The gate control line 15 may extend along a second direction (y-direction), thereby enabling the gate control line 15 to connect to one or more gate drive circuits 131 arranged along the second direction in the drive circuit group 13, and further to each pixel unit 121 in at least one pixel group 12. At least a portion of the gate control line 15 is located within the peripheral region BB, i.e., the gate control line 15 may be completely located within the peripheral region BB, or the gate control line 15 may also extend partially along the second direction outside the peripheral region BB.

[0174] The gate control line 15 may include a first end 151 and a second end 152 opposite to each other along a second direction. For example, the first end 151 may be disposed adjacent to the second peripheral region 10a, and the second end 152 may be disposed adjacent to the third peripheral region 10b.

[0175] The first end 151 and the second end 152 of the gate control line 15 are electrically connected to the power supply chip (or driver chip), respectively. The gate control signal output by the power supply chip can be transmitted to the gate control line 15 from the first end 151 and the second end 152, respectively. That is, the gate control signal can be input from both the first end 151 and the second end 152 of the gate control line 15. The gate control signal can be introduced into the gate control line 15 from the first end 151, transmitted along the gate control line 15 to the second end 152, and transmitted to the gate drive circuit 131 to drive the pixel units 121 in the multiple pixel groups 12 row by row. The gate control signal can also be introduced into the gate control line 15 from the second end 152, transmitted along the gate control line 15 to the first end 151, and transmitted to the gate drive circuit 131 to drive the pixel units 121 in the multiple pixel groups 12 row by row.

[0176] By introducing the gate control signal from opposite ends of the gate control line 15, the gate control signal is introduced from the first end 151 and transmitted to the gate drive circuit 131. The gate control signal also experiences voltage attenuation, meaning that voltage attenuation occurs during its transmission from the first end 151 to the second end 152. The gate control signal introduced from the second end 152 also experiences voltage attenuation as it travels along the gate control line 15 to the gate drive circuit 131. However, the superposition of the two gate control signals ensures a high voltage for the gate control signal input to each gate drive circuit 131. This reduces voltage attenuation and RC delay of the gate control signal transmitted to the gate drive circuit (or pixel unit), improves driving capability, and enhances the driving uniformity and effect of multiple pixel groups 12, thereby improving the display effect and uniformity of the display panel 10. While ensuring the display effect, this also helps reduce driving power consumption.

[0177] It should be noted that the gate control signal is input from the first terminal 151 and the second terminal 152 to the gate control line 15 and transmitted to one or more gate driving circuits 131 to drive the pixel unit 121 in the pixel group 12. The transmission process can be synchronous, that is, the gate control signal introduced from the first terminal 151 and the second terminal 152 can be the same and transmitted to the same gate driving circuit 131 at the same time to drive the pixel unit 121 in the same pixel group 12 to light up or turn off.

[0178] Of course, in some examples, the gate control signals introduced from the first terminal 151 and the second terminal 152 are respectively transmitted to one or more gate drive circuits 131. The transmission may be asynchronous, such as the gate control signals introduced from the first terminal 151 and the second terminal 152 may be different, or they may be transmitted to different gate drive circuits 131.

[0179] It is understood that a driving circuit group 13 is electrically connected to the power chip through at least one gate control line 15. In the example where the display panel 10 includes multiple driving circuit groups 13, the multiple driving circuit groups 13 can be electrically connected to the power chip through at least one gate control line 15 respectively. For example, referring to FIG9, the gate control line 15 may include gate control line 15a and gate control line 15b. Part of the gate control line 15a may be located in the first peripheral region 10c, and the gate control line 15a may be connected to the power chip and multiple gate driving circuits 131 in the driving circuit group 13a located in the first peripheral region 10c respectively. Part of the gate control line 15b may be located in the fourth peripheral region 10d, and the gate control line 15b may be connected to the power chip and multiple gate driving circuits 131 in the driving circuit group 13b located in the fourth peripheral region 10d respectively.

[0180] It should be noted that in the example where the display panel 10 includes multiple driving circuit groups 13, all gate control lines 150 of the display panel 10 can be the aforementioned gate control lines 15. For example, multiple driving circuit groups 13 can be electrically connected to the power chip via the gate control lines 15 provided in this embodiment. For instance, as shown in FIG9, driving circuit group 13a in the first peripheral region 10c and driving circuit group 13b in the fourth peripheral region 10d are respectively electrically connected to the gate control lines 15.

[0181] Alternatively, some gate control lines 150 of the display panel 10 may be the gate control lines 15 described above, or some gate control lines 150 may be the gate control lines 201 described in the related art. For example, some of the multiple driving circuit groups 13 may be electrically connected to the power chip through the gate control lines 15 provided in this embodiment, and some driving circuit groups 13 may be electrically connected to the power chip through the gate control lines 201 described in the related art. For example, the driving circuit group 13 in the first peripheral region 10c may be electrically connected to the power chip through the gate control lines 15 provided in this embodiment, and the driving circuit group 13 in the fourth peripheral region 10d may be electrically connected to the power chip through the gate control lines 201 described in the related art. Alternatively, some of the driving circuit groups 13 in the first peripheral region 10c can be electrically connected to the power chip through the gate control line 15 provided in the embodiments of this application, and some of the driving circuit groups 13 can be electrically connected to the power chip through the gate control line 201 in the related art. Some of the driving circuit groups 13 in the fourth peripheral region 10d can be electrically connected to the power chip through the gate control line 15 provided in the embodiments of this application, and some of the driving circuit groups 13 can be electrically connected to the power chip through the gate control line 201 in the related art.

[0182] Alternatively, in some examples, among the multiple gate control lines 150 connected to a driving circuit group, such as the start signal line, gate high voltage signal line, gate low voltage signal line and clock signal line, the gate control line 15 provided in the embodiments of this application can be the gate control line 15, that is, the two ends of the start signal line, gate high voltage signal line, gate low voltage signal line and clock signal line along the second direction are respectively electrically connected to the power supply chip, and control signals are introduced from both sides of the above signal lines.

[0183] Alternatively, among the multiple gate control lines 150 connected in a driving circuit group, some of the start signal line, gate high voltage signal line, gate low voltage signal line and clock signal line may be the gate control line 15 provided in the embodiments of this application, and some may be the gate control line 201 in the related art.

[0184] For example, referring to Figure 9, the gate high voltage signal line 154 and the gate low voltage signal line 155 of the display panel 10 can be the gate control line 15 provided in the embodiments of this application. The two ends of the gate high voltage signal line can extend to the outside of the substrate 11 and be electrically connected to the power chip respectively. The gate high voltage signal can be introduced into the gate high voltage signal line 154 from both ends and transmitted to multiple gate driving circuits 131 in sequence.

[0185] The first end 151 and the second end 152 of the gate low voltage signal line 155 can also extend to the outside of the substrate 11 and be electrically connected to the power chip respectively. The gate low voltage signal can be introduced into the gate low voltage signal line 155 from the first end 151 and the second end 152 respectively, and then transmitted to multiple gate drive circuits 131 in sequence.

[0186] Alternatively, in some examples, the start signal line, gate high voltage signal line, gate low voltage signal line, and clock signal line can all be gate control lines 15 provided in the embodiments of this application. As shown in FIG9, each gate drive circuit 131 in a drive circuit group is connected to multiple gate control lines 15, which can be a start signal line 153, a gate high voltage signal line 154, a gate low voltage signal line 155, a clock signal line 156a, and a clock signal line 156b.

[0187] To facilitate the electrical connection between the first and second ends of the gate control line 15 and the power chip, referring to Figure 9, the first end 151 of the gate control line 15 can extend to the side of the second peripheral region 10a facing away from the display area AA, and the second end 152 of the gate control line 15 can extend to the side of the third peripheral region 10b facing away from the display area AA. That is, the first end 151 and the second end 152 of the gate control line 15 can extend to the outside of the substrate 11 of the display panel 10, facilitating the electrical connection between the gate control line 15 and the power chip outside the substrate 11. A boost circuit can be provided between the power chip and the first end 151 and the second end 152 of the gate control line 15.

[0188] Referring to Figure 9, the display panel 10 may also include a plurality of data lines 16, which may be distributed in the first direction. Each data line 16 is connected to a pixel unit 121 in a plurality of pixel groups 12. The data lines 16 may be electrically connected to the source of a thin-film transistor for outputting a voltage signal Vdata.

[0189] The electronic device may also include a high-level power supply and a low-level power supply (not shown in the figure), the high-level power supply being used to provide a high-level voltage (ELVSS) and the low-level power supply being used to provide a low-level voltage (ELVDD), ELVDD and ELVSS providing power signals to the light-emitting diodes in the pixel unit 121 throughout the display surface.

[0190] Figure 10 is a schematic diagram of the gate control line routing in the display screen of another electronic device provided in this application.

[0191] Alternatively, in an example where the display includes a driver chip, as shown in FIG10, the driver chip 17 may be located in the second peripheral region 10a, and the first end 151 of the gate control line 15 may also be located in the second peripheral region 10a and electrically connected to the driver chip 17.

[0192] Of course, in some examples, the second end 152 of the gate control line 15 may also be located in the third peripheral region 10b. For example, a driver chip 17 for implementing boost processing may also be provided in the third peripheral region 10b, so that the second end 152 of the gate control line 15 is electrically connected to the driver chip 17, and the driver chip 17 is electrically connected to the power supply chip.

[0193] It should be noted that Figure 10 shows the distribution of the gate control line 15 of the display screen of the foldable electronic device. The extension direction of the bending region 10e can intersect with the extension direction of the gate control line 15. For example, as shown in Figure 10, the extension direction of the gate control line 15 can be the second direction (y direction), and the extension direction of the bending region 10e can be the first direction (x direction).

[0194] Figure 10a is a schematic diagram of the gate control line in the display screen of another electronic device provided in an embodiment of this application.

[0195] Alternatively, in some examples, the extension direction of the bend region 10e can be consistent with the extension direction of the gate control line 15. For example, as shown in FIG10a, both the extension direction of the gate control line 15 and the extension direction of the bend region 10e can be a second direction (y direction).

[0196] The connection between the first end 151 and the second end 152 and the power chip will be explained below, taking the example that the first end 151 of the gate control line 15 is located in the second peripheral region 10a and the second end 152 of the gate control line 15 extends to the side of the third peripheral region 10b away from the display area AA (i.e., outside the substrate 11).

[0197] It should be noted that by placing the first end 151 of the gate control line 15 within the second peripheral region 10a and the second end 152 extending to the outside of the substrate 11, the modification to the connection between the first end 151 of the gate control line 15 and the power chip is relatively small, under the condition that the gate control signal is pushed in from both sides of the gate control line 15, which is highly feasible and helps to reduce the difficulty of structural design and manufacturing cost.

[0198] As shown in Figures 10 and 10a, the display screen also includes a first circuit board 19 and a second circuit board 112. The second end 152 of the gate control line 15 extends to the outside of the substrate 11 and can be electrically connected to the first circuit board 19. The first circuit board 19 is electrically connected to the power chip (not shown in the figure), thereby realizing the electrical connection between the second end 152 of the gate control line 15 and the power chip.

[0199] The electronic device may include a third circuit board 110, a power chip may be integrated on the third circuit board 110 and electrically connected to the third circuit board 110, and a first circuit board 19 may be electrically connected to the third circuit board 110.

[0200] The second circuit board 112 can be electrically connected to the driver chip 17 and the third circuit board 110 respectively, thereby enabling the first end of the gate control line 15 to be electrically connected to the power chip on the third circuit board 110 through the driver chip 17, the second circuit board 112 and the power chip on the third circuit board 110 respectively.

[0201] Figure 11 is a schematic diagram of the connection between the gate control line and the first circuit board in Figure 10.

[0202] For example, as shown in FIG11, a first conductive pad 1521 may be provided on the second end 152 of the gate control line 15.

[0203] A second conductive pad (not shown in the figure) may be disposed on the first circuit board 19. The first conductive pad 1521 and the second conductive pad can be any conductive structural component capable of achieving electrical connection, for example, a conductive structural component formed of a metallic material, such as a bonding pad. Alternatively, they can also be conductive structural components formed of a non-metallic conductive material.

[0204] The first conductive pad 1521 and the second conductive pad are connected in a conductive contact, which enables the second end 152 of the gate control line 15 to be electrically connected to the first circuit board 19. The structural design is simple and easy to implement.

[0205] It should be noted that in the example where the display panel 10 includes multiple driving circuit groups 13, each driving circuit group 13 can be electrically connected to the power chip via multiple gate control lines 15. As shown in Figure 11, the multiple driving circuit groups 13 are respectively driving circuit group 13a, driving circuit group 13b, driving circuit group 13c, driving circuit group 13d, driving circuit group 13e, driving circuit group 13f, driving circuit group 13g, driving circuit group 13h, driving circuit group 13i, driving circuit group 13j, driving circuit group 13a, driving circuit group 13b, driving circuit group 13c, driving circuit group 13d, driving circuit group 13e, driving circuit group 13f, driving circuit group 13g, driving circuit group 13h ... Group 13i and driving circuit group 13j can be electrically connected to the first circuit board 19 via gate control lines 15a, 15b, 15c, 15d, 15e, 15f, 15g, 15h, 15i, and 15j, respectively. Each of the second ends 152 of all the gate control lines is provided with a first conductive pad 1521, which is electrically connected to the second conductive pad on the first circuit board 19 via the first conductive pad 1521.

[0206] Of course, in some other examples, a first conductive pad 1521 may be provided on the second end 152 of a portion of the gate control line 15, or the first conductive pad 1521 may not be provided on the second end 152 of a portion of the gate control line 15. The second end 152 of the portion of the gate control line 15 may be electrically connected to the first circuit board 19 and the power chip through other electrical connection methods.

[0207] The first conductive pad 1521 and the second conductive pad can be electrically contacted and fixedly connected by adhesive bonding, which is simple, quick and easy to implement, and helps to reduce the difficulty of production.

[0208] Figure 12 is a partially enlarged cross-sectional view of the connection between the gate control line and the first circuit board in Figure 11.

[0209] Referring to Figure 12, for example, the display screen may also include a conductive adhesive layer 111, which has conductive and adhesive properties. For example, the conductive adhesive layer 111 may be anisotropic conductive film (ACF). The conductive adhesive layer 111 may be disposed between the first conductive pad 1521 and the second conductive pad 1911, so that the first conductive pad 1521 and the second conductive pad 1911 are fixed together by the conductive adhesive layer 111, and an electrical connection is achieved between the first conductive pad 1521 and the second conductive pad 1911.

[0210] Alternatively, in some examples, the first conductive pad 1521 and the second conductive pad 1911 can also be fixedly assembled and electrically connected by welding, snap-fitting or other methods.

[0211] In some examples, the first circuit board 19 and the second circuit board 112 can be connected to the same third circuit board 110 and power chip of the electronic device, so that the two ends of the gate control line 15 are respectively connected to the same power chip.

[0212] Figure 13 is a schematic diagram of the back structure of the display screen of the electronic device in Figure 10.

[0213] For example, referring to FIG13, the first circuit board 19 may include a first sub-circuit board 191 and a second sub-circuit board 192. The first sub-circuit board 191 is electrically connected to the second end 152 of the gate control line 15, such as a first conductive pad being provided on the first sub-circuit board 191. The second end 152 is located closer to the third peripheral region 10b between the two ends of the gate control line 15 (see FIG10). The first sub-circuit board 191 may also be located close to the third peripheral region 10b, which facilitates connection and helps reduce the impedance introduced by the connection lines.

[0214] Referring again to Figure 13, at both ends of the gate control line 15, the first end 151 is positioned closer to the second peripheral region 10a. For example, the first end 151 can be located within the second peripheral region 10a, facilitating electrical connection between the first end 151 and the driver chip 17. The second circuit board 112 can be positioned adjacent to the second peripheral region 10a, and the third circuit board 110 can be positioned adjacent to the second circuit board 112, facilitating electrical connection between the driver chip 17 and the power supply chip, and also reducing the impedance of the connection lines. That is, in the second direction (y-direction), the first sub-circuit board 191 and the third circuit board 110 are located on opposite sides of the substrate 11.

[0215] At least a portion of the second sub-circuit board 192 may be located on the second surface 11b side of the substrate 11 (see FIG14a), such that the second sub-circuit board 192 and the substrate 11 at least partially overlap in the thickness direction. One end of the second sub-circuit board 192 may be electrically connected to the first sub-circuit board 191, and the other end of the second sub-circuit board 192 may be electrically connected to the third circuit board 110, thereby achieving electrical connection between the first sub-circuit board 191 and the third circuit board 110 on both sides without affecting the display effect of the display area.

[0216] The first sub-circuit board 191 can be a flexible circuit board, capable of bending and folding. Bending the first sub-circuit board 191 reduces the space occupied by the first sub-circuit board 191 in the second direction, thereby reducing the space occupied by the entire display screen in the second direction. For example, after bending the first sub-circuit board 191, the two parts of the first sub-circuit board 191 can overlap in the thickness direction, or a part of the first sub-circuit board 191 can be located on the side of the second surface 11b of the substrate 11 facing away from the first surface 11a (see Figure 14a), so that a part of the first sub-circuit board 191 overlaps with the substrate 11 in the thickness direction, reducing the space occupied.

[0217] The second sub-circuit board 192 can also be a flexible circuit board, which facilitates the electrical connection between the first sub-circuit board 191 and the third circuit board 110 on both sides through the second sub-circuit board 192.

[0218] For example, continuing to refer to Figure 13, a first connector 113 may be provided on the first circuit board 19. Similarly, the second sub-circuit board 192 may have the first connector 113 on one end opposite to the first sub-circuit board 191. The second sub-circuit board 192 can be electrically connected to the third circuit board 110 through the first connector 113. For instance, the third circuit board 110 may have a mating position that mates with the first connector 113. One of the first connector 113 and the mating position may be a plug, and the other may be a socket. The plug and socket can be mated together to achieve electrical connection, thereby realizing the electrical connection between the second sub-circuit board 192 and the third circuit board 110 through the mating of the plug and socket.

[0219] Of course, in some examples, the first sub-circuit board 191 can also be a rigid circuit board. Correspondingly, in some examples, the second sub-circuit board 192 can also be a rigid circuit board.

[0220] Referring to Figure 13, the first sub-circuit board 191 and the second sub-circuit board 192 can be an integral structure. For example, the first circuit board 19 can be a single, integrally formed flexible circuit board, with a portion of the first circuit board 19 forming the first sub-circuit board 191 and a portion of the first circuit board 19 forming the second sub-circuit board 192. For instance, the first circuit board 19 can be divided into a portion extending along a first direction and a portion extending along a second direction, making the first circuit board 19 a T-shaped flexible circuit board. The portion extending along the first direction can form the first sub-circuit board 191, and the portion extending along the second direction can form the second sub-circuit board 192.

[0221] Alternatively, the first sub-circuit board 191 and the second sub-circuit board 192 can be formed separately, and then connected together by conductive connections such as connectors or soldering. Compared to a single integrated structure, the separate structures of the first and second sub-circuit boards are simpler, and their individual forming processes are simpler and easier to implement. Furthermore, the placement of the first and second sub-circuit boards offers greater flexibility, satisfying various layout requirements.

[0222] Figure 14 is a schematic diagram of the rear structure of a display screen in another electronic device provided in an embodiment of this application.

[0223] For example, referring to Figure 14, the display screen may further include a second connector 114, through which the first sub-circuit board 191 can be electrically connected to the second sub-circuit board 192. That is, the first sub-circuit board 191 and the second sub-circuit board 192 are electrically connected through the second connector 114 after being formed separately.

[0224] The connection method of the second connector 114 can be the same as that of the first connector 113. For example, the second connector 114 may also include a plug or a socket. For specific implementation methods, please refer to the first connector 113.

[0225] When assembling a display screen with a mid-frame to form an electronic device, the third circuit board 110 can be electrically connected to the main circuit board 105 on the mid-frame. For example, referring to FIG14, the electronic device may also include a motherboard connector 115, through which the third circuit board 110 is electrically connected to the main circuit board 105. The implementation of the motherboard connector 115 can also be referred to the first connector 113.

[0226] In some examples, the main circuit board in the electronic device can serve as the third circuit board 110. Alternatively, the third circuit board 110 can also be a separately configured circuit board in the electronic device.

[0227] The second circuit board 112 can be a flexible circuit board. Bending the second circuit board 112 can reduce the space occupied by the second circuit board 112 in the second direction, and further reduce the space occupied by the entire display screen in the second direction. For example, after bending the second circuit board 112, the two parts of the second circuit board 112 can overlap in the thickness direction, or a part of the second circuit board 112 can be located on the side of the second surface 11b of the substrate 11 facing away from the first surface 11a (see Figure 14a), so that a part of the second circuit board 112 overlaps with the substrate 11 in the thickness direction, reducing the space occupied.

[0228] The third circuit board 110 can be a rigid circuit board. Of course, in some examples, the second circuit board 112 can also be a flexible circuit board. In some examples, the third circuit board 110 can also be a flexible circuit board.

[0229] Referring to Figures 13 and 14, in the second direction, the third circuit board 110 may be located on the side of the second circuit board 112 facing away from the substrate 11.

[0230] Figure 14a is a partial side view of another electronic device provided in an embodiment of this application.

[0231] Alternatively, as shown in Figure 14a, in the thickness direction, the third circuit board 110 can be located on the second surface 11b side of the substrate 11, that is, the projection of the third circuit board 110 and the substrate 11 in the thickness direction at least partially overlaps, which is beneficial to reduce the overall length of the display screen and the third circuit board.

[0232] In the embodiments of this application, it is understood that when the display screen and the middle frame are assembled to form an electronic device, the second surface 11b of the substrate 11 of the display panel 10 is opposite to one side of the middle plate, ensuring that the first surface 11a of the substrate 11 can be exposed so that the image displayed in the display area AA can be seen.

[0233] Figure 14b is a schematic diagram of the assembly of the display screen and the middle plate of the middle frame in Figure 14a.

[0234] For example, referring to Figure 14b, the display screen 103, formed by assembling the display panel 10, the first circuit board 19, the second circuit board 112, etc., and the third circuit board 110 and power chip (not shown in the figure) are located on one side of the middle plate 1025 along the thickness direction. In actual assembly, the display panel 10 is first formed by setting gate control lines, pixel units, etc. on the substrate 11. The display panel 10, the driver chip, the first circuit board 19, the second circuit board 112, etc. are assembled together to form the display screen. Then, the entire display screen assembly is mounted on one side of the middle frame 102, on which the third circuit board 110 and the power chip can be mounted. A main circuit board 105 can also be provided on this side. By connecting the third circuit board 110 to the main circuit board 105, and connecting the third circuit board 110 to the first circuit board 19 and the second circuit board 112, the assembly of the display screen and the middle frame is completed. The assembly method is simple and easy to operate.

[0235] It is understood that at least a portion of the first circuit board 19 (such as at least a portion of the second sub-circuit board 192) is located on the second surface side of the substrate 11, and the display screen, power chip, and third circuit board 110 are assembled on one side of the middle plate 1025. There will be a third circuit board 110 and at least a portion of the first circuit board 19 between the second surface 11b of the substrate 11 and one side of the middle plate 1025. The display screen and the middle plate 1025 as a whole have relatively large dimensions in the thickness direction.

[0236] Figure 14c is a schematic diagram of the assembly of the display screen and the middle plate in another electronic device provided in an embodiment of this application.

[0237] Alternatively, as shown in Figure 14c, the display panel 10 and the driver chip (not shown) can be located on one side of the middle plate 1025, and the third circuit board 110 and the power chip (not shown) can be located on the side of the middle plate 1025 facing away from the display panel 10.

[0238] For example, a first through hole 1025a and a second through hole 1025b can be respectively opened on the middle plate 1025, and the first through hole 1025a and the second through hole 1025b can penetrate the middle plate 1025 in the thickness direction. The first circuit board 19 can be passed through the first through hole 1025a, that is, a part of the first circuit board 19 (such as the first sub-circuit board 191) can be electrically connected to the gate control line (not shown in the figure) on the substrate 11, and a part of the first circuit board 19 (such as part of the first sub-circuit board 191 and the second sub-circuit board 192) can pass through the first through hole 1025a and be electrically connected to the third circuit board 110.

[0239] The second circuit board 112 can be disposed on the second through hole 1025b, that is, a portion of the second circuit board 112 can be electrically connected to the gate control line (or driver chip) on the substrate 11, and a portion of the second circuit board 112 can be electrically connected to the third circuit board 110 through the second through hole 1025b. Compared with the display screen and the third circuit board located on one side of the middle plate 1025 in FIG. 14b, subtracting the third circuit board 110 and the first circuit board 19 between the second surface 11b of the substrate 11 and the middle plate 1025 helps to reduce the overall thickness of the display screen and the middle plate 1025.

[0240] In an example where the electronic device is a foldable electronic device, the third circuit board 110 may be located within one of the middle frames, the first circuit board may be a through-shaft circuit board of the electronic device, or the first circuit board 19 may be a flexible circuit board separately provided in the display screen that can be inserted into the through-shaft hole of the pivot.

[0241] Alternatively, in some examples, the first circuit board 19 and the second circuit board 112 can be connected to two third circuit boards 110 and power chips respectively, so that the two ends of the gate control line are connected to the two power chips respectively, and the two power chips can be electrically connected to each other.

[0242] Figure 15a is a schematic diagram of another connection structure between the display screen and the third circuit board provided in an embodiment of this application, and Figure 15b is a side view of the connection structure between the display screen and the third circuit board in Figure 15a.

[0243] For example, referring to FIG15a, the electronic device includes two third circuit boards, such as third circuit board 110a and third circuit board 110b respectively. Referring to FIG15b, the two third circuit boards may be located on the second surface 11b side of the substrate 11 respectively.

[0244] Each third circuit board may be provided with a power chip. The first circuit board 19 may be electrically connected to one of the third circuit boards and the power chip, and the second circuit board 112 may be electrically connected to the other third circuit board and the power chip. For example, the first circuit board 19 may be electrically connected to the third circuit board 110a, and the second circuit board 112 may be electrically connected to the third circuit board 110b.

[0245] The electronic device may also include a fourth circuit board 116, through which the two third circuit boards 110 can be electrically connected. This increases the flexibility of gate control and power chip connection, expanding its applicability.

[0246] The first circuit board 19 may be provided with a third connector 117, and the second circuit board 112 may be provided with a fourth connector 118. The first circuit board 19 can be electrically connected to the third circuit board 110a through the third connector 117, and the second circuit board 112 can be electrically connected to the third circuit board 110b through the fourth connector 118. The connection method of the third connector 117 and the fourth connector 118 can be the same as that of the first connector 113, and for details, please refer to the implementation method of the first connector 113 above.

[0247] Figure 16 is a schematic diagram of the assembly of the display screen and the middle plate of the middle frame in Figure 15b.

[0248] Correspondingly, the display screen 103, formed by assembling the display panel 10, the first circuit board 19, the second circuit board 112, etc., and the third circuit boards 110a, 110b, and the power chip (not shown in the figure) can be located on one side of the middle plate 1025 along the thickness direction. In actual assembly, the display panel 10, the driver chip, the first circuit board 19, the second circuit board 112, etc., can be assembled together to form a display screen, and then the entire display screen assembly is mounted on one side of the middle frame 102, on which the third circuit board 110a, the third circuit board 110b, and the fourth circuit board 116 can be mounted. That is, at least the aforementioned third circuit board and fourth circuit board 116 will be present between the second surface 11b of the substrate 11 and one side of the middle plate 1025. The overall dimensions of the display screen and the middle plate 1025 in the thickness direction are relatively large.

[0249] Alternatively, the display panel and driver chip can be located on one side of the middle plate, and the two third and fourth circuit boards can be located on the side of the middle plate facing away from the display panel. Alternatively, the third and fourth circuit boards between the second surface of the substrate and the middle plate can be removed to reduce the overall thickness of the display screen and the middle plate.

[0250] Figure 17 is a schematic diagram of the assembly of the display screen and the middle plate in another electronic device provided in an embodiment of this application.

[0251] For example, referring to Figure 17, taking a foldable electronic device as an example, the third circuit board 110a and the third circuit board 110b can be located in two separate middle frames. For instance, the third circuit board 110a can be located on the middle plate 1021 of the first middle frame, and the third circuit board 110b can be located on the middle plate 1023 of the second middle frame. The fourth circuit board 116 can be a through-shaft circuit board of the electronic device. Alternatively, the fourth circuit board 116 can be a flexible circuit board with a through-shaft hole that can pass through the pivot of the electronic device.

[0252] The display panel 10 and the driver chip are located on one side of the middle plate 1021 and the middle plate 1023, and the third circuit board 110a, the third circuit board 110b and the fourth circuit board 116 are respectively located on the side of the middle plate 1021 and the middle plate 1023 that faces away from the display panel 10.

[0253] A first through hole 1021a and a second through hole 1023a can be respectively opened on the middle plate 1021 and the middle plate 1023. The first circuit board 19 passes through the first through hole 1021a. A portion of the first circuit board 19 can be electrically connected to the gate control line (not shown in the figure) on the substrate 11. A portion of the first circuit board 19 can pass through the first through hole 1021a and be electrically connected to the third circuit board 110a.

[0254] The second circuit board 112 can be disposed on the second through hole 1023a. A portion of the second circuit board 112 can be electrically connected to the gate control line (or driver chip) on the substrate 11. A portion of the second circuit board 112 can pass through the second through hole 1023a and be electrically connected to the third circuit board 110b.

[0255] Figure 18 is a schematic diagram of the assembly process of the display screen and the middle plate in Figure 17.

[0256] For example, referring to Figure 18, in actual assembly, the display panel 10, the first circuit board 19, the second circuit board 112, etc., can be assembled together to form the display screen 103. The third circuit board 110a and the third circuit board 110b are respectively fixed to the side of the middle plate 1021 and the middle plate 1023 facing away from the display panel 10. The fourth circuit board 116 is passed through the pivot and connected to the third circuit board 110a and the third circuit board 110b respectively. The second surface 11b of the substrate 11 is opposite to one side of the middle plate 1021 and the middle plate 1023. The substrate 11 is attached and fixed to the middle plate 1021 and the middle plate 1023. A portion of the first circuit board 19 passes through the first through hole 1021a of the middle plate 1021 and is electrically connected to the third circuit board 110a. A portion of the second circuit board 112 passes through the second through hole 1023a of the middle plate 1023 and is electrically connected to the third circuit board 110b, thus realizing the assembly of the display screen with the two middle plates.

[0257] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances. The terms "first," "second," "third," "fourth," etc. (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0258] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display screen, characterized in that, Includes a display panel, the display panel comprising: Display area; The first peripheral area and the display area are adjacent in a first direction; Multiple pixel groups are located within the display area and are arranged sequentially along a second direction. Each pixel group includes multiple pixel units arranged sequentially along a first direction, which intersects with the second direction. A gate control line is provided at least in the first peripheral region, the gate control line extends along the second direction, and the gate control line is electrically connected to at least one of the plurality of pixel units in the pixel group; The gate control line includes a first end and a second end opposite to each other in the second direction. The first end and the second end are respectively used for electrical connection with the power chip. The gate control signal of the power chip is transmitted from the first end and the second end to the gate control line.

2. The display screen according to claim 1, characterized in that, The peripheral area further includes a second peripheral area and a third peripheral area, which are located on the outer sides of the display area in the second direction. The first end of the gate control line is located within the second peripheral region, and the second end of the gate control line is located outside the third peripheral region on the side opposite to the display area.

3. The display screen according to claim 2, characterized in that, It also includes a first circuit board, the second end of which is electrically connected to the first circuit board, and the first circuit board is used to electrically connect to the power chip.

4. The display screen according to claim 3, characterized in that, A first conductive pad is provided on the second end of the gate control line, and a second conductive pad is provided on the first circuit board; The display screen also includes a conductive adhesive layer, through which the first conductive pad and the second conductive pad are electrically connected.

5. The display screen according to claim 3 or 4, characterized in that, It also includes a driver chip located in the second peripheral region, with the first end of the gate control line electrically connected to the driver chip, and the driver chip being used to electrically connect to the power supply chip.

6. The display screen according to claim 5, characterized in that, It also includes a second circuit board, the driver chip being electrically connected to the second circuit board, and the second circuit board being used to be electrically connected to a third circuit board on which the power chip is disposed; The first circuit board is used for electrical connection with the third circuit board.

7. The display screen according to claim 6, characterized in that, The display panel further includes a substrate, the substrate having a first surface and a second surface opposite to each other, the driving chip, at least a portion of the gate control line, and the pixel unit being located on the first surface respectively; The first circuit board includes a first sub-circuit board and a second sub-circuit board. The first sub-circuit board is disposed adjacent to the third peripheral region and is electrically connected to the second end of the gate control line. The second circuit board is disposed adjacent to the second peripheral area; At least a portion of the second sub-circuit board is located on the second surface side, one end of the second sub-circuit board is electrically connected to the first sub-circuit board, and the other end of the second sub-circuit board is used to electrically connect to the third circuit board disposed adjacent to the second circuit board.

8. The display screen according to claim 7, characterized in that, The first sub-circuit board and the second sub-circuit board each include a flexible circuit board; The second sub-circuit board is provided with a first connector, which is used to electrically connect to the third circuit board.

9. The display screen according to claim 8, characterized in that, It also includes a second connector, through which the first sub-circuit board is electrically connected to the second sub-circuit board.

10. The display screen according to claim 6, characterized in that, The first circuit board is provided with a third connector, and the second circuit board is provided with a fourth connector; The third connector and the fourth connector are respectively used for electrical connection with the two interconnected third circuit boards.

11. The display screen according to any one of claims 1-10, characterized in that, The peripheral area also includes a fourth peripheral area, and in the first direction, the first peripheral area and the fourth peripheral area are respectively located outside the two sides of the display area; The gate control lines are distributed within the fourth peripheral region.

12. The display screen according to any one of claims 1-11, characterized in that, The gate control line includes one or more of the following: a start signal line, a gate high voltage signal line, a gate low voltage signal line, and a clock signal line.

13. The display screen according to claim 12, characterized in that, The gate control lines include a gate high voltage signal line and a gate low voltage signal line.

14. An electronic device, characterized in that, Includes a power chip, a mid-frame, and a display screen as described in any one of claims 1-13, wherein the display screen is fixed to the mid-frame; The middle frame includes a middle plate and a frame, the frame being disposed around the middle plate, and the second surface of the substrate of the display screen facing one side of the middle plate; The power chip is electrically connected to the first and second ends of the gate control line of the display screen, respectively.

15. The electronic device according to claim 14, characterized in that, It also includes a third circuit board, on which the power chip is disposed and electrically connected to the third circuit board, and the third circuit board is electrically connected to the first circuit board and the second circuit board of the display screen respectively; The display screen, the power chip, and the third circuit board are each located on one side of the middle plate.

16. The electronic device according to claim 15, characterized in that, It also includes a third circuit board, on which the power chip is disposed and electrically connected; The display panel and the driver chip of the display screen are respectively located on one side of the middle plate, and the third circuit board and the power chip are respectively located on the side of the middle plate facing away from the display panel; The middle plate has a first through hole and a second through hole. A portion of the first circuit of the display screen passes through the first through hole and is electrically connected to the third circuit board. A portion of the second circuit board of the display screen passes through the second through hole and is electrically connected to the third circuit board.

17. The electronic device according to claim 16, characterized in that, It also includes a pivot, and the number of the middle frames is at least two. The two middle frames are respectively disposed on both sides of the pivot, and the two middle frames are rotatably engaged through the pivot. The display screen is disposed on the at least two middle frames and the pivot. The power chip and the third circuit board are respectively disposed in the two middle frames, and a through hole is provided on the rotating shaft; The electronic device further includes a fourth circuit board, which passes through the through-shaft hole and is electrically connected to the two third circuit boards respectively.

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