Display panel and display device
By setting a first wiring that is electrically connected to the signal line in the display panel, and combining it with an insulated second wiring and a shielding part, the problems of large bezel width and uneven brightness in the screen-off state are solved, achieving better display effect and consistency.
Patent Information
- Application Number
- CN202310090123.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-01-18
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2043-01-18
AI Technical Summary
Existing display panels have issues such as large bezel widths and uneven brightness when the screen is off.
By setting a first wiring that is electrically connected to the signal line in the display panel and placing part of it in the display area, combined with the design of an insulated second wiring and a shielding part, the wiring structure is optimized to reduce the fan-out width and improve the consistency of ambient light reflection.
It effectively reduces the width of the fan-out area, improves the consistency of ambient light reflection in the display area, avoids the problem of inconsistent visual effects when the screen is off, and enhances the overall display effect of the display panel.
Smart Images

Figure CN116209323B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of display, in particular to a display panel and a display device.
BACKGROUND
[0002] With the continuous development of science and technology, more and more display devices are widely used in people's daily life and work, and become an important tool indispensable to people today. Moreover, with the continuous development of display technology, consumers' requirements for display are constantly improving, and various displays emerge in an endless stream, such as liquid crystal display, organic light emitting display and other display technologies. On this basis, 3D display, touch display, curved display, ultra-high resolution display, high frequency display and other technologies are emerging.
[0003] At present, the display panel has the problems of large frame width and non-uniform light and shade in the screen-off state.
SUMMARY
[0004] Therefore, the embodiments of the present application provide a display panel and a display device.
[0005] In one aspect, the embodiments of the present application provide a display panel, comprising a display area, the display area comprising a pixel and a first signal line, the first signal line being electrically connected to the pixel;
[0006] a wiring, at least part of the wiring being located in the display area; the wiring comprising a first wiring and a second wiring, the first wiring being electrically connected to the first signal line; the second wiring being insulated from the first wiring;
[0007] the broken end of the second wiring is located in the display area, and part of the first wiring is located on the side of the broken end of the second wiring away from the second wiring;
[0008] a shielding portion, in the direction perpendicular to the plane where the display panel is located, the shielding portion is located on the side of the wiring close to the light-out side of the display panel, and overlaps with the broken end of the second wiring.
[0009] In another aspect, based on the same inventive concept, the embodiments of the present application provide a display device comprising the above-mentioned display panel.
[0010] The display panel and the display device provided by the embodiments of the present application can reduce the width of the fan-out area by setting the first wiring electrically connected to the first signal line and locating at least part of the first wiring in the display area.
[0011] Moreover, the embodiments of the present application can improve the consistency of ambient light reflection at different positions in the display area AA by setting the second wiring insulated from the first wiring and arranged in the same layer as the first wiring.
[0012] In addition, the embodiment of the present application sets the shielding part, in the direction perpendicular to the plane where the display panel is located, the shielding part is located on the side where the wiring is close to the light emitting side of the display panel, and the shielding part overlaps with the broken end of the second wiring, so that the visibility of the broken end caused by the different reflection degrees of the ambient light at the broken end and other non-broken positions of the second wiring in the screen-off state can be avoided, and the problem of inconsistent visual effects at different positions in the display area in the screen-off state can be avoided. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0014] Figure 1 A top view of a display panel provided by the embodiment of the present application;
[0015] Figure 2 An equivalent circuit diagram of a pixel provided by the embodiment of the present application;
[0016] Figure 3 A working timing diagram of a pixel driving circuit provided by the embodiment of the present application;
[0017] Figure 4 An enlarged schematic view of a first wiring, a second wiring and a first signal line provided by the embodiment of the present application;
[0018] Figure 5 A Figure 4 A sectional view along BB';
[0019] Figure 6 Another enlarged schematic view of a first sub-wiring, a second wiring and a first signal line provided by the embodiment of the present application;
[0020] Figure 7 Still another enlarged schematic view of a display area provided by the embodiment of the present application;
[0021] Figure 8 A Figure 2 A layout corresponding to the pixel driving circuit shown in the figure;
[0022] Figure 9 Still another enlarged schematic view of a first sub-wiring, a second wiring and a first signal line provided by the embodiment of the present application;
[0023] Figure 10An enlarged schematic diagram of a first sub-first wiring, a second sub-first wiring, and a first signal line provided in an embodiment of the present invention;
[0024] Figure 11 for Figure 1 A magnified view of a portion of the first region;
[0025] Figure 12 for Figure 1 Another enlarged view of the first region in the middle;
[0026] Figure 13 for Figure 1 A magnified view of a portion of the second central region;
[0027] Figure 14 for Figure 1 Another enlarged view of the second region in the middle;
[0028] Figure 15 for Figure 1 Another enlarged view of the first area in the middle;
[0029] Figure 16 This is a schematic diagram of a display device provided in an embodiment of the present invention.
Detailed Implementation Methods
[0030] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0031] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0032] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.
[0033] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.
[0034] It should be understood that, although the terms first, second, third, etc. can be employed in describing the wires in the embodiments of the present application, these wires should not be limited to these terms. These terms are only used to distinguish one wire from another. For example, a first wire could be termed a second wire without departing from the scope of the embodiments of the present application, and similarly, a second wire could be termed a first wire.
[0035] The embodiments of the present application provide a display panel, such as Figure 1 as shown in Figure 1 A top view of a display panel provided by the embodiments of the present application is shown in FIG. 1. The display panel includes a display area AA and a non-display area NA. The non-display area NA at least partially surrounds the display area AA. The display area AA includes a plurality of pixels.
[0036] As shown in Figure 2 as shown in Figure 2 An equivalent circuit diagram of a pixel provided by the embodiments of the present application is shown in FIG. 2. The pixel includes a pixel driving circuit 101 and a light emitting element 102 electrically connected. The pixel driving circuit 101 includes a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, a seventh transistor T7, and a storage capacitor Cst. The pixel driving circuit 101 is coupled to a scan line S1, a data line D1, a power supply line Vdd, and a ground line GND. Figure 2As shown, the control terminal of the third transistor T3 is electrically connected with the first node N1, the first terminal of the third transistor T3 is electrically connected with the second node N2, and the second terminal of the third transistor T3 is electrically connected with the third node N3; the control terminal of the first transistor T1 is electrically connected with the light-emitting control signal line E, and the first terminal of the first transistor T1 is electrically connected with the first power voltage line PVDD; the control terminal of the second transistor T2 is electrically connected with the second scan line S2, and the first terminal of the second transistor T2 is electrically connected with the data line Data; the second terminal of the first transistor T1 and the second terminal of the second transistor T2 are both electrically connected with the second node N2; the control terminal of the fourth transistor T4 is electrically connected with the second scan line S2; the first terminal of the fourth transistor T4 is electrically connected with the third node N3, and the second terminal of the fourth transistor T4 is electrically connected with the first node N1; the control terminal of the fifth transistor T5 is electrically connected with the first scan line S1; the first terminal of the fifth transistor T5 is electrically connected with the reference voltage signal line Vref; the second terminal of the fifth transistor T5 is electrically connected with the first node N1; the control terminal of the sixth transistor T6 is electrically connected with the light-emitting control signal line E, the first terminal of the sixth transistor T6 is electrically connected with the third node N3, and the second terminal of the sixth transistor T6 is electrically connected with the fourth node N4; the control terminal of the seventh transistor T7 is electrically connected with the first scan line S1, the first terminal of the seventh transistor T7 is electrically connected with the reference voltage signal line Vref, and the second terminal of the seventh transistor T7 is electrically connected with the fourth node N4. The first pole of the light-emitting element 102 is electrically connected with the fourth node N4, and the second pole is electrically connected with the second power voltage line PVEE. The first plate of the storage capacitor Cst is electrically connected with the first power voltage line PVDD, and the second plate of the storage capacitor Cst is electrically connected with the first node N1.
[0037] In the working of the pixel driving circuit 101, in combination with Figure 2 and Figure 3 As shown, Figure 3 is a working timing diagram of a pixel driving circuit provided by an embodiment of the present application. The working process of the pixel driving circuit includes a reset stage t1, a charging stage t2, and a light-emitting stage t3. In the reset stage t1, the first scan line S1 controls the fifth transistor T5 and the seventh transistor T7 to be turned on, and the reference voltage provided by the reference voltage signal line Vref resets the first node N1 and the fourth node N4 through the fifth transistor T5 and the seventh transistor T7 respectively. data In the charging stage t2, the second scan line S2 controls the second transistor T2 and the fourth transistor T4 to be turned on, and the data voltage Vdata provided by the data line Data charges the second node N2 through the second transistor T2. In this stage, the third transistor T3 is turned on. The potential of the first node N1 changes continuously until the potential V N1 of the first node N1 changes to V N1 = V data -|V th |, Vdata a data voltage provided for the data line Data, V th a threshold voltage of the third transistor T3. In the light emitting stage t3, the first transistor T1, the sixth transistor T6 and the third transistor T3 are turned on, and the light emitting element 102 electrically connected with the pixel driving circuit 101 is lighted.
[0038] It should be noted that, Figure 2 The fifth transistor T5 and the seventh transistor T7 are both electrically connected with the reference voltage signal line Vref, that is, the same reference voltage is used to reset the first node N1 and the fourth node N4. It is only an example that the first node N1 and the fourth node N4 are reset by different reference voltages in the embodiments of the present application. For example, the fifth transistor T5 is electrically connected with the first reference voltage signal line, and the seventh transistor T7 is electrically connected with the second reference voltage signal line. The reference voltages provided by the first reference voltage signal line and the second reference voltage signal line are different (for example, different in amplitude).
[0039] As shown in Figure 1 The display area AA also includes a plurality of signal lines 1. The signal lines 1 are electrically connected with the pixel driving circuit 101. The signal lines 1 can be used to transmit data voltages required for the operation of the pixel driving circuit 101, for example. That is, the signal lines 1 include the data line Data.
[0040] As shown in Figure 1 The plurality of signal lines 1 are arranged along a first direction h1, and the signal lines 1 extend along a second direction h2. The first direction h1 and the second direction h2 intersect, and the first direction h1 and the second direction h2 are perpendicular to each other, for example. Figure 1 The first direction h1 and the second direction h2 are perpendicular to each other, for example.
[0041] In the embodiments of the present application, the signal lines 1 include a first signal line 11 and a second signal line 12, and the first signal line 11 is located on one side of the second signal line 12 close to the edge E of the display panel.
[0042] As shown in Figure 1 The display panel 100 also includes a wiring 2, and the wiring 2 includes a first wiring 21 and a second wiring 22. At least part of the first wiring 21 is located in the display area AA, and at least part of the second wiring 22 is also located in the display area AA. The first wiring 21 is electrically connected with the first signal line 11. As shown in Figure 1 The first wiring 21 includes a first end X1 close to the non-display area NA, and the first end X1 is located on one side of the first signal line 11 close to the center of the display area AA along the first direction h1, for example.
[0043] As shown in Figure 1As shown, the first wiring 21 can be provided as a first sub-connection line 2101 and a second sub-connection line 2102 electrically connected, and the first sub-connection line 2101 and the second sub-connection line 2102 extend in intersecting directions. Figure 1 As shown, the first sub-connection line 2101 extends in a first direction h1, and the second sub-connection line 2102 extends in a second direction h2. Figure 1 As shown, the second sub-connection line 2102 is located on a side of the first signal line 11 close to the center of the display area AA. The second sub-connection line 2102 is close to the first end portion X1 of the non-display area NA.
[0044] As shown, the non-display area NA includes a fan-out area FA and a pin area PA. The fan-out area FA includes a first fan-out line 31 and a second fan-out line 32, and the pin area PA includes a first pin 41 and a second pin 42. The first fan-out line 31 is electrically connected to the first wiring 21 and the first pin 41. The second fan-out line 32 is electrically connected to the second signal line 12 and the second pin 42. When the display panel is in operation, a signal transmitted by the first pin 41 is transmitted to the first wiring 21 through the first fan-out line 31, and is transmitted to the first signal line 11 through the first wiring 21. A signal transmitted by the second pin 42 is transmitted to the second signal line 12 through the second fan-out line 32. As an example, the first pin 41 and the second pin 42 can be used to transmit a data voltage. Figure 1
[0045] By providing the first wiring 21 electrically connected to the first signal line 11, and arranging at least part of the first wiring 21 in the display area AA, and arranging the first wiring 21 close to the first end portion X1 of the non-display area NA on a side of the first signal line 11 close to the center of the display area AA, the first fan-out line 31 electrically connected to the first signal line 11 can be led out from a side of the first signal line 11 close to the center of the display area AA, without being led out from an end portion of the first signal line 11 close to the non-display area NA, so that the included angle between the first fan-out line 31 and the second direction h2 can be reduced, i.e., the inclination angle of the first fan-out line 31 relative to the second direction h2 can be reduced, and in the case of ensuring good insulation of different fan-out lines, the width of the fan-out area FA in the second direction h2 can be reduced.
[0046] Meanwhile, by providing the second wiring 22 insulated from the first wiring 21, the consistency of reflection of ambient light by the area provided with the first wiring 21 and the area not provided with the first wiring 21 in the display area AA can be improved, and the display effect of the display panel can be improved.
[0047] For example, in this embodiment of the invention, the first power supply voltage, the second power supply voltage, and the reference voltage required for the operation of different pixel driving circuits 101 can be the same. That is, the first power supply voltage transmitted by the first power supply voltage line PVDD, the second power supply voltage transmitted by the second power supply voltage line PVEE, and the reference voltage transmitted by the reference voltage signal line Vref can be a common voltage shared by multiple pixel driving circuits 101.
[0048] Optionally, the second wiring 22 can be floating, meaning that the second wiring 22 may not transmit any electrical signals. Alternatively, in this embodiment of the invention, the second wiring 22 can also transmit a common voltage, which includes any one of the first power supply voltage, the second power supply voltage, and the reference voltage described above. This configuration can reduce the voltage drop of the common voltage, which is beneficial for improving the brightness uniformity of each pixel.
[0049] For example, in an embodiment of the present invention, the second wiring 22 may be disposed on the same layer as at least a portion of the first wiring 21.
[0050] like Figure 1 As shown, at least part of the break end D of the second wiring 22 22 Located in display area AA, and part of the first wiring 21 is located at the break end D of the second wiring 22. 22 The side away from the second wiring 22; that is, the first wiring 21 and the second wiring 22 can be arranged opposite each other.
[0051] like Figure 1 As shown, the display panel also includes a shielding part 5. Combined with... Figure 4 and Figure 5 As shown, Figure 4 This is an enlarged schematic diagram of a first wiring 21, a second wiring 22, and a first signal line 11 provided in an embodiment of the present invention. Figure 5 for Figure 4 In a cross-sectional view along BB', in the direction h3 perpendicular to the plane of the display panel, the blocking part 5 is located on the side of the wiring 2 near the light-emitting side of the display panel, and the blocking part 5 and the break end D of the second wiring 22 are... 22 Overlapping. For example, such as... Figure 4 and Figure 5 As shown, the first wiring 21 can be disposed on a different layer from the first signal line 11 to which it is electrically connected, and the two are electrically connected through vias. The first wiring can be optionally laid out entirely within a single film layer. Figure 5 As shown, the display panel also includes a substrate 10, a first signal line 11 located on one side of the substrate 10, and a first wiring 21 and a second wiring 22 located on the side of the first signal line 11 away from the substrate 10. A shielding portion 5 is located on the side of the first wiring 21 away from the first signal line 11.
[0052] The display panel provided in this embodiment of the invention can reduce the width of the fan-out area FA by setting a first wiring 21 electrically connected to the first signal line 11 and making at least a portion of the first wiring 21 located in the display area AA.
[0053] Furthermore, by providing a second wiring 22 that is at least partially disposed on the same layer as and insulated from the first wiring 21, embodiments of the present invention can improve the consistency of ambient light reflection at different locations in the display area AA.
[0054] In addition, this embodiment of the invention provides a shielding part 5, which is located on the side of the wiring 2 near the light-emitting side of the display panel in the direction h3 perpendicular to the plane where the display panel is located, and the shielding part 5 is positioned at the break end D of the second wiring 22. 22 Overlapping can prevent the break at the end D of the second wiring 22 from occurring when the screen is off. 22 The fracture end D is caused by the different degree of ambient light reflection compared to other non-fracture locations. 22 This ensures visibility and avoids inconsistencies in visual effects across different areas of the display area AA when the screen is off. The screen-off state refers to the state where the pixels on the display panel are not lit.
[0055] For example, such as Figure 1 As shown, the edge E of the display panel has a rounded corner R, and the extension of the first signal line 11 passes through the rounded corner R. By electrically connecting the first signal line 11 to the first wiring 21 located in the display area AA, the number of fan-out lines corresponding to the rounded corner R can be reduced, which is beneficial to reducing the bezel width at the rounded corner R and improving the visual effect of the display panel.
[0056] For example, such as Figure 1 and Figure 4 As shown, the first wiring 21 includes a first sub-first wiring 211, and at least one cut-off end D of the first sub-first wiring 211. 21 Located in display area AA; the second wiring 22 includes a first sub-second wiring 221; the break end D of the first sub-second wiring 221 22 and the break end D of the first sub-wiring 211 21 Relative settings.
[0057] like Figure 1 and Figure 4 As shown, the shielding part 5 includes a first shielding part 51. In the direction h3 perpendicular to the plane where the display panel is located, the first shielding part 51 covers the cut end D of the first sub-first wiring 211 located in the display area AA. 21 The first and second wiring 221 are located at the break end D of the display area AA. 22By adopting this configuration, at least two cut ends can be blocked by a first blocking part 51. This improves the consistency of the display panel when the screen is off and helps to reduce the number of first blocking parts 51 in the display panel, thus ensuring that the display panel has a high light transmittance.
[0058] For example, the first sub-first wiring 211 may include one or more break ends D located in the display area AA. 21 The first sub-wiring 211 includes multiple break ends D located in the display area AA. 21 At that time, multiple lines D corresponding to different fracture ends can be set in the display area AA. 21 The first sub-second wiring 221. Correspondingly, multiple cut-off ends D can be set in the display area AA, each corresponding to a different cut-off end. 21 The first shielding part 51.
[0059] by Figure 4 For example, in the first sub-first wiring 211, the first sub-connecting line 2101 and the second sub-connecting line 2102 are arranged on the same layer, and the first sub-connecting line 2101 in the first sub-first wiring 211 has a break end D. 21 Taking the display area as an example, the end of the fracture, D 21 There is a corresponding first sub-second wiring 221.
[0060] Alternatively, in embodiments of the present invention, the first sub-connecting line 2101 and the second sub-connecting line 2102 in the first sub-first wiring 211 can be arranged on different layers, such as... Figure 6 As shown, Figure 6 This is an enlarged schematic diagram of another first sub-first wiring 211, second wiring 22, and first signal line 11 provided in an embodiment of the present invention, wherein the first sub-connecting line 2101 and the second sub-connecting line 2102 are disposed on different layers and are electrically connected through vias. The first sub-connecting line 2101 includes two cut-out ends D located in the display area AA. 21 The second sub-connector 2102 includes a break end D located in the display area AA. 21 And a broken end located in the non-display area NA. For example... Figure 6 As shown, corresponding to the first sub-first wiring 211, there are two first sub-second wirings 221 extending along the first direction h1 and arranged opposite to the first sub-connecting line 2101, and one first sub-second wiring 221 extending along the second direction h2 and arranged opposite to the second sub-connecting line 2102. Figure 6 The three break ends D of the three first sub-second wirings 221 mentioned above are shown. 22 The three corresponding first blocking parts 51 are shown as illustrations.
[0061] For example, the first wiring 21 described above includes multiple first sub-first wirings 211, with at least five pixel driving circuits 101 spaced between adjacent first sub-first wirings 211. In this embodiment of the invention, "at least five pixel driving circuits 101 spaced between adjacent first sub-first wirings 211" means that at least five pixel driving circuits 101 arranged along the second direction h2 are spaced between the first sub-connecting lines 2101 of adjacent first sub-first wirings 211; and / or, at least five pixel driving circuits 101 arranged along the first direction h1 are spaced between the second sub-connecting lines 2102 of adjacent first sub-first wirings 211. Figure 7 As shown, Figure 7 This is a partially enlarged schematic diagram of another display area provided in an embodiment of the present invention, wherein six pixel driving circuits 101 arranged along the second direction h2 are spaced apart between the first sub-connecting lines 2101 of two adjacent first sub-first wirings 211, and six pixel driving circuits 101 arranged along the first direction h1 are spaced apart between the second sub-connecting lines 2102 of two adjacent first sub-first wirings 211. (In conjunction with...) Figure 8 As shown, Figure 8 To and Figure 2 The layout of the pixel driving circuit shown is such that the left and right boundaries of each pixel driving circuit 101 in the first direction h1 can be defined by two adjacent data lines Data in the display panel, and the upper and lower boundaries in the second direction h2 can be defined by two adjacent first scan lines S1 in the display panel.
[0062] In this embodiment of the invention, by having the first wiring 21 include multiple first sub-first wirings 211, and by having at least five pixel driving circuits 101 spaced between two adjacent first sub-first wirings 211, the distribution of the broken ends of the first sub-first wirings 211 in the display area AA can be made more dispersed, thereby improving the uniformity of the distribution of the first sub-second wiring 221 and the first blocking portion 51 provided at the broken ends in the display area AA.
[0063] For example, such as Figure 4 As shown, when the first sub-connecting line 2101 and the second sub-connecting line 2102 in the first wiring 21 are arranged on the same layer, the first wiring 21 has a corner C; the corner C is the connection position of the first sub-connecting line 2101 and the second sub-connecting line 2102.
[0064] Combination Figure 1 and Figure 4As shown, the second wiring 22 also includes a second sub-second wiring 222, which is located on the side away from the second sub-first wiring 212 at corner C. The arrangement of the second sub-second wiring 222 increases the coverage area of the second wiring 22, which is beneficial for further improving the uniformity of reflected light intensity at various locations. Furthermore, when transmitting the common voltage through the second sub-second wiring 222, this arrangement increases the number of conduction paths for the common voltage, thereby reducing the voltage drop and improving the display uniformity of pixels at various locations.
[0065] Combination Figure 1 and Figure 4 As shown, the shielding part 5 also includes a second shielding part 52, which covers the cut end D of the second sub-second wiring 222 near the corner C in a direction h3 perpendicular to the plane where the display panel 100 is located. 22 This configuration improves the uniformity of reflected light intensity at different locations within the display area AA, while also preventing the breakage of the second sub-second wiring 222 at its end D. 22 visible.
[0066] For example, such as Figure 4 As shown, the second wiring 22 includes a first sub-signal line 2201 and a second sub-signal line 2202 whose extension directions intersect. Figure 4 The diagram illustrates a first sub-signal line 2201 extending along a first direction h1 and a second sub-signal line 2202 extending along a second direction h2. Specifically, the first sub-signal line 2201 of the second sub-second wiring 222 is located at corner C on the side away from the first sub-connecting line 2101; the second sub-signal line 2202 is located at corner C on the side away from the second sub-connecting line 2102.
[0067] For example, such as Figure 4 As shown, the display area AA includes at least two second blocking portions 52, one of which blocks the break end D of the first sub-signal line 2201 near the first sub-first wiring 211. 22 Another second shielding part 52 shields the second sub-signal line 2202 near the break end D of the first sub-first wiring 211. 22 .
[0068] Continue to refer to Figure 1 , Figure 4 and Figure 6 As shown, the second wiring 22 also includes a third sub-second wiring 223, and the break end D of the third sub-second wiring 223 22 The termination point is at the non-interrupted end position and non-corner position of the adjacent first wiring 21; for example, such as Figure 1 , Figure 4 and Figure 6As shown, the broken end portion D of the third sub-second wiring 223 22 up to the first sub-connection line 2101 or the second sub-connection line 2102. In combination Figure 4 and Figure 6 As shown, the first wiring 21 is provided with at least two third sub-second wirings 223, one of which is up to the first sub-connection line 2101, i.e., the extension line of one of the third sub-second wirings 223 passes through the first sub-connection line 2101. The other third sub-second wiring 223 is up to the second sub-connection line 2102, i.e., the extension line thereof passes through the second sub-connection line 2102.
[0069] The provision of the third sub-second wiring 223 can further increase the coverage area of the second wiring 22, and can further improve the uniformity of the reflected light intensity of the ambient light at each position. Moreover, when the third sub-second wiring 223 is used to transmit the common voltage, the provision of the third sub-second wiring 223 can increase the conduction path of the common voltage, thereby reducing the voltage drop of the common voltage, which is conducive to improving the display uniformity of the pixels at each position.
[0070] As shown in FIG. 1, Figure 1 , Figure 4 and Figure 6 As shown, the shielding portion 5 further comprises a third shielding portion 53, which covers at least the broken end portion D of the third sub-second wiring 223 in the direction h3 perpendicular to the plane where the display panel is located 22 . While the third sub-second wiring 223 is provided to improve the uniformity of the reflected light intensity at each position in the display panel, the provision of the third shielding portion 53 can avoid the broken end portion D of the third sub-second wiring 223 22 from being exposed.
[0071] As shown in FIG. 1, Figure 1 , Figure 4 and Figure 6 When a plurality of third sub-second wirings 223 are provided corresponding to the first wiring 21, a plurality of third shielding portions 53 described above can also be provided in the display area AA.
[0072] It should be noted that the embodiments of the present application do not limit the position of the film layer where the first wiring 21 and the second wiring 22 are provided. Figure 6 The co-layer provision of each first sub-second wiring 221 and each third sub-second wiring 223 is only one example, as shown in FIG. 1, Figure 9 , Figure 9As another first sub-wiring, second-wiring and first signal line amplification schematic diagram provided by the embodiment of the present application, the embodiment of the present application can also make the second sub-connection line 2102, the first sub-second-wiring 221 extending along the second direction h2 and the third sub-second-wiring 223 extending along the second direction h2 be arranged in the same layer. Optionally, the second sub-connection line 2102, the first sub-second-wiring 221 extending along the second direction h2 and the third sub-second-wiring 223 extending along the second direction h2 can be arranged in the same layer with the first signal line 11. The first sub-connection line 2101, the first sub-second-wiring 221 extending along the first direction h1 and the third sub-second-wiring 223 extending along the first direction h1 can be arranged in the same layer. As shown in Figure 9 , the third sub-second-wiring 223 extending along the second direction h2 can be electrically connected with the third sub-second-wiring 223 extending along the first direction h1 crossing the same through a via.
[0073] For example, the embodiment of the present application can make the interval between the two adjacent first wirings 21 be at most three pixel driving circuits 101. Figure 1 For making the interval between the first sub-connection lines 2101 of the two adjacent first wirings 21 be two pixel driving circuits 101 arranged along the second direction h2, and the interval between the second sub-connection lines 2102 of the two adjacent first wirings 21 be one pixel driving circuit 101, a schematic diagram is shown in the figure. In the embodiment of the present application, limited by the limited space in the display area AA, at most one wiring 2 is arranged corresponding to each pixel driving circuit 101, that is, at most one first wiring 21 or one second wiring 22 is arranged corresponding to each pixel driving circuit 101, and the embodiment of the present application makes the interval between the two adjacent first wirings 21 be at most three pixel driving circuits 101, which is beneficial to reduce the number of the third sub-second-wirings 223 arranged between the two adjacent first wirings 21, so as to reduce the number of the broken end portions D 22 of the third sub-second-wirings 223.
[0074] For example, the embodiment of the present application can set the above-mentioned third shielding portion 53 to include a conductive material. As shown in Figure 4 , Figure 6 and Figure 9 , the embodiment of the present application can make the third shielding portion 53 be electrically connected with the two adjacent third sub-second-wirings 223 located on both sides of the first wiring 21. In this way, when the third sub-second-wirings 223 transmit the common voltage such as the above-mentioned first power supply voltage, second power supply voltage, reference voltage and the like, the on-path of the common voltage can be increased, which is beneficial to reduce the voltage drop of the common voltage and improve the brightness uniformity of the pixels at different positions.
[0075] As shown in Figure 1 , the first wiring 21 includes at least one second sub-first-wiring 212, and the two broken end portions D21 Both are located in the non-display area NA. This is related to the two break ends D of the first wiring 21. 21 Compared to setting all wires in the display area AA, with the same number of first wires 21, setting the second sub-first wire 212 can reduce the number of broken ends D of the first wires 21 in the display area AA. 21 The increased quantity can further improve the uneven screen-off problem caused by the visible break ends of the first wiring 21.
[0076] For example, in combination Figure 10 As shown, Figure 10 This is an enlarged schematic diagram of a first sub-first wiring 211, a second sub-first wiring 212, and a first signal line 11 provided in an embodiment of the present invention. In the second sub-first wiring 212, the embodiment of the present invention allows the first sub-connecting line 2101 and the second sub-connecting line 2102 to be arranged on the same layer to avoid forming a broken end on the side of the first sub-connecting line 2101 near the second sub-connecting line 2102, and to avoid forming a broken end on the side of the second sub-connecting line 2102 near the first sub-connecting line 2101. Figure 10 As shown, the break end D of the first sub-connector 2101 is away from the second sub-connector 2102. 21 Located in the non-display area NA, the second sub-connector 2102 is away from the break end D of the first sub-connector 2101. 21 Located in the non-display area NA.
[0077] For example, such as Figure 10 As shown, the first wiring 21 includes a first sub-first wiring 211 and a second sub-first wiring 212, and the cut end D of the first sub-first wiring 211 is shown. 21 Located in display area AA; the break end D of the second sub-first wiring 212 21 Located in the non-display area NA. For example... Figure 10 As shown, the length d1 of the second sub-connecting line 2102 of the first sub-first wiring 211 is greater than the length d2 of the second sub-connecting line 2102 of the second sub-first wiring 212. This arrangement, compared to setting the broken end of the second sub-first wiring 212 in the display area AA, is equivalent to extending the first sub-connecting line 2101 of the second sub-first wiring 212 to the non-display area NA. This not only reduces the number of broken ends in the display area AA but also compensates for the load difference caused by the different lengths of the second sub-connecting line 2102 in the first and second sub-first wirings 211 and 212.
[0078] Exemplarily, the embodiment of the present application can set a plurality of first sub first wirings 211 and a plurality of second sub first wirings 212 in the display panel, and make at least one second sub first wiring 212 between any two adjacent first sub first wirings 211; and / or make at least one first sub first wiring 211 between any two adjacent second sub first wirings 212. In this way, the broken end of the first sub first wiring 211 in the display area AA can be dispersed as much as possible.
[0079] Exemplarily, as shown in Figure 1 , the display area AA includes a first area AA1. In combination with Figure 11 , the first area AA1 is located in the display area AA. Figure 11 In the first area AA1, the first electrode 61 of the light emitting element 102 is electrically connected to the pixel driving circuit 101. Figure 1 In the first area AA1, the first electrode 61 of the light emitting element 102 is electrically connected to the pixel driving circuit 101.
[0080] Exemplarily, the embodiment of the present application can make the first electrode 61 and the shielding part 5 in the same layer. In this way, the first electrode 61 and the shielding part 5 can be formed in the same process, which can simplify the preparation process of the display panel. Moreover, the embodiment of the present application can make the shielding part 5 avoid the film layer where the pixel driving circuit 101 is located, so as to avoid the influence of the setting of the shielding part 5 on the pixel driving circuit 101. Compared with the film layer where the pixel driving circuit 101 is located, the film layer where the first electrode 61 is located has less structures, and the embodiment of the present application can reduce the interference of the shielding part 5 on other structures by setting the shielding part 5 in the film layer where the first electrode 61 is located. It should be noted that, in the embodiment of the present application, the first electrode 61 and the shielding part 5 can be in the same layer, and the first electrode 61 and the shielding part 5 can be electrically connected. Figure 11 In the embodiment of the present application, in order to clearly show the positions of the shielding part 5, the first electrode 61, the second wiring 22 and the first sub connecting line 2101 in the first wiring 21, other structures are not shown.
[0081] It should be noted that the display panel can be provided with a plurality of light emitting elements 102 for emitting light of different colors, wherein according to the light emitting characteristics of each light emitting element 102, the shape and / or area of the first electrode 61 of different light emitting elements 102 can be different, and the embodiment of the present application does not limit the shape and / or area of each first electrode 61.
[0082] Exemplarily, as shown in Figure 12 , the display area AA includes a first area AA1. In combination with Figure 12 , the first area AA1 is located in the display area AA. Figure 1Another partially enlarged schematic diagram of the first region AA1 shows that, in this embodiment of the invention, a touch electrode 7 can be provided in the display panel to enable the display panel to also have touch functionality. For example, in this embodiment of the invention, the touch electrode 7 and the aforementioned shielding portion 5 can be disposed in the same layer to simplify the manufacturing process of the display panel. Furthermore, by disposing the touch electrode 7 and the shielding portion 5 in the same layer, this embodiment of the invention can also ensure that the shielding portion 5 avoids the film layer containing the structures in the pixel driving circuit 101, thus preventing the shielding portion 5 from affecting the pixel driving circuit 101. Compared to the film layer containing the pixel driving circuit 101, the film layer containing the touch electrode 7 has fewer structures. By placing the shielding portion 5 in the film layer containing the touch electrode 7, this embodiment of the invention can reduce the interference of the shielding portion 5 on other structures. It should be noted that, in Figure 12 In order to clearly show the positions of the shielding part 5, the first electrode 61, the touch electrode 7, the second wiring 22, and the first sub-connecting line 2101 in the first wiring 21, other structures are not shown.
[0083] For example, such as Figure 11 As shown, the first electrode 61 and the shielding part 5 are disposed in the same layer; the cut end D of the second wiring 22 22 Located in the first region AA1. The light-emitting element 102 includes a first sub-light-emitting element 1021 located in the first region AA1. In the direction h3 perpendicular to the plane where the display panel is located, the first electrode 61 of the first sub-light-emitting element 1021 is not connected to the break end D of the second wiring 22. 22 The overlapping and shielding portion 5 is connected to the first electrode 61 of the first sub-light-emitting element 1021. Due to the break end D 22 The area in question is the cutoff region of the second wiring 22; therefore, there is a step difference in the film layer containing the second wiring 22 at this location. In this embodiment of the invention, the first electrode 61 of the first sub-light-emitting element 1021 is positioned to avoid the cut-off end D of the second wiring 22. 22 This configuration ensures the flatness of the location of the first electrode 61, which is beneficial to improving the fabrication yield of the first sub-light-emitting element 1021, including the first electrode 61, and improving the light emission effect of the first sub-light-emitting element 1021.
[0084] For example, such as Figure 1 As shown, display area AA also includes a second area AA2, combined with Figure 13 As shown, Figure 13 for Figure 1 A partially enlarged schematic diagram of the second zone AA2 shows that the second wiring 22 includes a first sub-signal line 2201 and a second sub-signal line 2202, which are electrically connected at an intersection in the second zone AA2.
[0085] like Figure 13As shown, the second region AA2 includes a second sub-light-emitting element 1022; the first electrode 61 of the second sub-light-emitting element 1022 includes a body portion 611 and a protrusion portion 612; along the direction h3 perpendicular to the plane where the display panel is located, the protrusion portion 612 overlaps with the intersection position of the first sub-signal line 2201 and the second sub-signal line 2202.
[0086] For example, in combination Figure 11 and Figure 13 As shown, in this embodiment of the invention, the shape and area of the first electrode 61 of the first sub-light-emitting element 1021 in the main body 611 and the first area AA1 can be the same, and the shape and area of the protrusion 612 and the blocking part 5 in the first area AA1 can be the same. This arrangement ensures that the pattern distribution of the first electrode 61 in the first area AA1, where the first wiring 21 is provided, and the pattern distribution in the second area AA2, where the first wiring 21 is not provided, but the second wiring 22 is provided, are as consistent as possible, which helps to improve the consistency of the pattern distribution in different areas of the display area AA.
[0087] like Figure 12 As shown, the touch electrode 7 includes a first sub-touch grid line 71 located in the first region AA1. In this embodiment of the invention, in the direction h3 perpendicular to the plane where the display panel is located, the first sub-touch grid line 71 does not intersect with the break end D of the second wiring 22. 22 The overlapping, shielding portion 5 and the first sub-touch grid line 71 are connected. Due to the break end D 22 The area in question is the cutoff region of the second wiring 22; therefore, a step exists in the film layer containing the second wiring 22 at this location. In this embodiment of the invention, the first electrode 61 of the first sub-touch grid line 71 avoids the cut-off end D of the second wiring 22. 22 This setting ensures the flatness of the location of the first sub-touch grid line 71, which is beneficial to improving the fabrication yield of the first sub-touch grid line 71.
[0088] For example, Figure 1 As shown, display area AA also includes a second area AA2, combined with Figure 14 As shown, Figure 14 for Figure 1 Another enlarged schematic diagram of the second area AA2 shows that in the second area AA2, the second wiring 22 includes a first sub-signal line 2201 and a second sub-signal line 2202, which are electrically connected at an intersection in the second area AA2. The second area AA2 includes a second sub-touch grid line 72, which includes a body portion 721 and a protrusion 722; along a direction h3 perpendicular to the plane of the display panel, the protrusion 722 overlaps with the intersection of the first sub-signal line 2201 and the second sub-signal line 2202.
[0089] For example, in combination Figure 12 and Figure 14 As shown, in this embodiment of the invention, the shape and area of the main body 721 and the first sub-touch grid line 71 can be the same, and the shape and area of the protrusion 722 and the shielding part 5 can be the same. This arrangement ensures that the pattern distribution of the touch grid lines in the first area AA1 (where the first wiring 21 is provided) and the second area AA2 (where the first wiring 21 is not provided but the second wiring 22 is provided) in the display area AA are as consistent as possible, which helps to improve the consistency of the pattern distribution in different areas of the display area AA.
[0090] For example, such as Figure 12 and Figure 14 As shown, the touch electrode 7 has touch grid lines 70 and a plurality of openings formed by the touch grid lines 70, with the openings at least partially exposing the light-emitting element 102. The touch grid lines 70 include conductive materials such as metal or graphene. By configuring the touch electrode 7 as touch grid lines 70 and ensuring that the openings at least partially expose the light-emitting element 102, this embodiment of the invention can reduce the influence of the touch electrode 7 on the light emitted from the light-emitting element 102, thereby improving the display effect of the display panel.
[0091] For example, such as Figure 12 As shown, in the direction h3 perpendicular to the plane of the display panel, the touch grid line 70 at least partially covers at least a portion of the first wiring 21. This arrangement allows the touch grid line 70 to obscure at least a portion of the first wiring 21, reducing its visibility.
[0092] For example, such as Figure 12 As shown, the width of the touch grid line 70 is greater than the width of the first wiring 21. With this setting, the relative position of the touch grid line 70 and the first wiring 21 can be adjusted so that the touch grid line 70 can block the cut end of the first wiring 21 as much as possible, which helps to reduce the area of the blocking part 5 and ensures that the display panel has a high light transmittance.
[0093] For example, when setting the first wiring 21 and the first electrode 61, along the direction h3 perpendicular to the plane where the display panel is located, the embodiments of the present invention can make the second sub-connecting line 2102 overlap with the center of the first electrode 61, and / or make the first sub-connecting line 2101 offset from the first electrode 61. Figure 11 This is illustrated by showing that the first sub-connector 2101 and the first electrode 61 are offset from each other. (Combined) Figure 15 As shown, Figure 15 for Figure 1A further partial enlarged view of the first area AA1, in which the second sub-connection line 2102 is shown to overlap the center of the first electrode 61. In this way, the first electrode 61 can be symmetrically arranged relative to the second sub-connection line 2102, and the display effect observed from different viewing angles can be close to each other, thereby facilitating the improvement of color cast at different viewing angles.
[0094] The embodiments of the present application also provide a display device, as shown in Figure 16 Figure 16 A schematic view of a display device provided by the embodiments of the present application is shown, which includes the display panel 100 described above. The specific structure of the display panel 100 has been described in detail in the above embodiments, and will not be repeated here. Of course, Figure 16 The display device shown is merely illustrative, and the display device can be any electronic device having a display function, such as a mobile phone, a tablet computer, a notebook computer, an e-paper, or a television.
[0095] The above merely provides the preferred embodiments of the present application but should not be used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A display panel, characterized by, The display area includes pixels and a first signal line, and the first signal line and the pixels are electrically connected; The wiring includes a first wiring and a second wiring, the first wiring is electrically connected with the first signal line, and the second wiring is insulated from the first wiring; The broken end of the second wiring is located in the display area, and part of the first wiring is located on the side of the broken end of the second wiring away from the second wiring; The shielding part is located on the side of the wiring close to the light-emitting side of the display panel and overlaps the broken end of the second wiring in the direction perpendicular to the plane where the display panel is located; The pixel includes a light-emitting element, the display area includes a second area, the second wiring includes a first sub-signal line and a second sub-signal line, and the first sub-signal line and the second sub-signal line are electrically connected at the intersection in the second area; The second area includes a second sub-light-emitting element, the first electrode of the second sub-light-emitting element includes a body part and a protruding part, and the protruding part overlaps the intersection of the first sub-signal line and the second sub-signal line in the direction perpendicular to the plane where the display panel is located; Or, The second area includes a second sub-touch grid line, the second sub-touch grid line includes a body part and a protruding part, and the protruding part overlaps the intersection of the first sub-signal line and the second sub-signal line in the direction perpendicular to the plane where the display panel is located.
2. The display panel of claim 1, wherein The first wiring includes a first sub-first wiring, and the broken end of the first sub-first wiring is located in the display area; The second wiring includes a first sub-second wiring, and the broken end of the first sub-second wiring and the broken end of the first sub-first wiring are oppositely arranged; The shielding part includes a first shielding part, and the first shielding part covers the broken ends of the first sub-first wiring and the first sub-second wiring respectively in the direction perpendicular to the plane where the display panel is located.
3. The display panel of claim 2, wherein The pixel includes a pixel driving circuit electrically connected with the light-emitting element; The first wiring includes a plurality of first sub-first wirings, and at least five pixel driving circuits are arranged between any two adjacent first sub-first wirings.
4. The display panel of claim 2, wherein The first sub-first wiring has a corner; The second wiring further includes a second sub-second wiring, and the second sub-second wiring is located on the side of the corner of the first sub-first wiring away from the first sub-second wiring; The shielding part further includes a second shielding part, and the second shielding part covers the side of the second sub-second wiring close to the broken end of the first sub-first wiring in the direction perpendicular to the plane where the display panel is located.
5. The display panel of claim 2, wherein The second wiring includes a third sub-second wiring, and a broken end of the third sub-second wiring is located at a non-broken end position and a non-corner position of the first wiring adjacent to the third sub-second wiring; The shielding portion further includes a third shielding portion, and the third shielding portion covers at least the broken end of the third sub-second wiring in a direction perpendicular to a plane in which the display panel is located. 6.The display panel of claim 5, wherein, The pixel includes a pixel driving circuit electrically connected to the light emitting element. A distance between two adjacent first wirings is at most three pixel driving circuits. 7.The display panel of claim 5, wherein, The third shielding portion is electrically connected to two adjacent third sub-second wirings located on two sides of the first wiring.
8. The display panel of claim 1, wherein, The display panel further includes a non-display area; The first wiring includes at least one second sub-first wiring, and two broken ends of the second sub-first wiring are located in the non-display area. 9.The display panel of claim 8, wherein, The second sub-first wiring includes a first sub-connection line and a second sub-connection line electrically connected to each other, and an extension direction of the first sub-connection line intersects with an extension direction of the second sub-connection line; The first sub-connection line and the second sub-connection line are disposed in the same layer, a broken end of the first sub-connection line away from the second sub-connection line is located in the non-display area, and a broken end of the second sub-connection line away from the first sub-connection line is located in the non-display area. 10.The display panel of claim 9, wherein, The first wiring includes a first sub-first wiring, and a broken end of the first sub-first wiring is located in the display area; the first sub-first wiring includes a first sub-connection line and a second sub-connection line electrically connected to each other, and an extension direction of the first sub-connection line intersects with an extension direction of the second sub-connection line; A length of the second sub-connection line of the first sub-first wiring is greater than a length of the second sub-connection line of the second sub-first wiring; A broken end of a first sub-connection line segment of the second sub-first wiring is located in the non-display area, and a broken end of the first sub-connection line segment of the first sub-first wiring is located in the display area. 11.The display panel of claim 8, wherein, The first wiring includes a first sub-first wiring, and a broken end of the first sub-first wiring is located in the display area; The display panel includes a plurality of first sub-first wirings and a plurality of second sub-first wirings, at least one second sub-first wiring is included between two adjacent first sub-first wirings, and / or at least one first sub-first wiring is included between two adjacent second sub-first wirings. 12.The display panel of claim 1, wherein, The second area includes a second sub-light emitting element, the first electrode of the second sub-light emitting element includes a body portion and a protruding portion, and the protruding portion overlaps with an intersection position of the first sub-signal line and the second sub-signal line in a direction perpendicular to a plane in which the display panel is located. The first electrode and the shielding portion are disposed in the same layer.
13. The display panel according to claim 12, wherein the display region comprises a first region, and the broken end of the second wiring is located in the first region. The light emitting element comprises a first sub light emitting element located in the first region, and the first electrode of the first sub light emitting element does not overlap with the broken end of the second wiring in a direction perpendicular to a plane in which the display panel is located, and the shielding portion is connected with the first electrode of the first sub light emitting element.
14. The display panel according to claim 1, wherein the second region comprises a second sub touch grid line, and the second sub touch grid line comprises a body portion and a protruding portion, and the protruding portion overlaps with the intersection position of the first sub signal line and the second sub signal line in a direction perpendicular to a plane in which the display panel is located. The display panel comprises a touch electrode, and the touch electrode and the shielding portion are arranged in the same layer.
15. The display panel according to claim 14, wherein the display region comprises a first region, and the broken end of the second wiring is located in the first region. The touch electrode comprises a first sub touch grid line located in the first region, and the first sub touch grid line does not overlap with the broken end of the second wiring in a direction perpendicular to a plane in which the display panel is located, and the shielding portion is connected with the first sub touch grid line.
16. The display panel according to claim 14, wherein the touch electrode has a touch grid line and a plurality of openings surrounded by the touch grid line, and the openings at least partially expose the light emitting element, and the touch grid line at least partially covers at least part of the first wiring in a direction perpendicular to a plane in which the display panel is located.
17. The display panel according to claim 16, wherein the width of the touch grid line is greater than the width of the first wiring.
18. The display panel according to claim 1, wherein the first wiring comprises a first sub connection line and a second sub connection line electrically connected, and the extension directions of the first sub connection line and the second sub connection line intersect. The second sub connection line overlaps with the center of the first electrode in a direction perpendicular to a plane in which the display panel is located, and / or the first sub connection line is staggered with the first electrode.
19. The display panel according to claim 1, wherein the edge of the display panel has a rounded corner. The extension line of the first signal line passes through the rounded corner. The display panel according to any one of claims 1-19. 20. A display device comprising:
Citation Information
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