Display panel and display device
By dividing the fan-out trace area into multiple areas and setting the lead arrangement method, the uneven display problem of the display panel is solved, and the brightness consistency and display effect are improved.
Patent Information
- Application Number
- CN202210610139.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-05-31
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2042-05-31
AI Technical Summary
There is a problem of uneven display when displaying the existing display panel.
The fan-out trace area is divided into a first area, a second area and a third area arranged in the first direction, and the lead arrangement method is set according to the functional differentiation of each area, so that the distance between the first lead and the second lead is less than or equal to the distance between the second lead and the third lead, and the second lead and the third lead are arranged parallel or symmetrically so that their impedance tends to be consistent.
Improve the display uniformity of the display panel, ensure the consistent brightness of the pixel columns connected to different leads, and improve the display effect.
Smart Images

Figure CN114937672B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of display technologies, and particularly to a display panel and a display device.
Background Art
[0002] With the continuous development of science and technology, more and more display devices are widely used in people's daily lives and work, becoming an essential tool for people today. Moreover, with the development of display technologies, users' requirements for the display effect of display devices are also increasing. Currently, there is a problem of uneven display when the display panel is displaying.
Summary of the Invention
[0003] In view of this, embodiments of the present invention provide a display panel and a display device to improve the display uniformity of the display panel.
[0004] On the one hand, embodiments of the present invention provide a display panel, including a display area, a fan-out routing area, and a pin area arranged along a first direction. The fan-out routing area includes a first area, a second area, and a third area arranged in sequence along the first direction;
[0005] The display area includes a first signal line, a second signal line, and a third signal line;
[0006] The fan-out routing area includes a first lead, a second lead, and a third lead. The first lead is electrically connected to the first signal line, the second lead is electrically connected to the second signal line, and the third lead is electrically connected to the third signal line; the first lead, the second lead, and the third lead all extend from the first area to at least the third area;
[0007] In the first area, the first lead, the second lead, and the third lead are arranged along a second direction, and the second direction intersects the first direction; in the first area, the distance between the first lead and the second lead is d112, and the distance between the second lead and the third lead is d123, and d123≥d112;
[0008] In the second area, the second lead and the third lead are adjacent; and, the second lead and the third lead are arranged in parallel; or, the second area includes a symmetry line, and the second lead and the third lead are symmetrically arranged with respect to the symmetry line;
[0009] In the third area, the first lead, the second lead, and the third lead are arranged along the second direction.
[0010] On the other hand, embodiments of the present invention provide a display device, and the display device includes the above-mentioned display panel.
[0011] The display panel and the display device provided by the embodiments of the present invention divide the fan-out routing area into a first area, a second area, and a third area arranged along a first direction, and can differentially set the arrangement manner of the leads provided therein according to the functions to be achieved in each area. In the first area, the embodiments of the present invention arrange a first lead, a second lead, and a third lead along a second direction, and make the distance d112 between the first lead and the second lead less than or equal to the distance d123 between the second lead and the third lead. With such an arrangement, in the first area, a space for arranging leads for transmitting other types of signals can be left between the second lead and the third lead. In the second area, the embodiments of the present invention make the second lead and the third lead parallel to each other, or make the second lead and the third lead symmetrically arranged, so that the lengths of the second lead and the third lead located in the second area are the same. While meeting the design requirements of the first area, the impedances of the second lead and the third lead passing through the first area and the second area tend to be the same. When each pixel in the display panel displays with the same target brightness, the actual brightness of the second pixel column connected to the second lead and the third pixel column connected to the third lead can be made the same, improving the display uniformity and the display effect of the display panel.
Description of the Drawings
[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0013] Figure 1 Schematic diagram of a display panel provided by an embodiment of the present invention;
[0014] Figure 2 Partial enlarged schematic diagram of a display panel provided by an embodiment of the present invention;
[0015] Figure 3 Another partial enlarged schematic diagram of a display panel provided by an embodiment of the present invention;
[0016] Figure 4 Yet another partial enlarged schematic diagram of a display panel provided by an embodiment of the present invention;
[0017] Figure 5 Yet another partial enlarged schematic diagram of a display panel provided by an embodiment of the present invention;
[0018] Figure 6 Cross-sectional schematic diagram of a display panel provided by an embodiment of the present invention;
[0019] Figure 7An enlarged schematic view of a first region of a display panel provided by an embodiment of the present invention;
[0020] Figure 8 A cross-sectional schematic view of a first region of a display panel provided by an embodiment of the present invention;
[0021] Figure 9 A cross-sectional schematic view of a third region of a display panel provided by an embodiment of the present invention;
[0022] Figure 10 A schematic view of a display device provided by an embodiment of the present invention.
Specific Embodiments
[0023] For a better understanding of the technical solutions of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0024] It should be clear that the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.
[0025] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms of "a", "the" and "said" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.
[0026] It should be understood that the term " / and" used herein is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.
[0027] It should be understood that although the terms first, second, third, etc. may be used to describe leads in the embodiments of the present invention, these leads should not be limited to these terms. These terms are only used to distinguish multiple leads from each other. For example, without departing from the scope of the embodiments of the present invention, the first lead can also be called the second lead, and similarly, the second lead can also be called the first lead.
[0028] The embodiments of the present invention provide a display panel, as Figure 1 shown, Figure 1 is a schematic view of a display panel provided by an embodiment of the present invention. The display panel includes a display area AA, a fan-out routing area FA, and a pin area PA arranged along a first direction h1.
[0029] The display area AA is provided with a plurality of sub-pixels and signal lines connected to the sub-pixels. For example, the display area AA includes Figure 1 the first signal line 11, the second signal line 12, and the third signal line 13 shown. The pin area PA is provided with a plurality of pins (pads). After the display panel is fabricated, an integrated circuit (IC) is bonded to the pins in the pin area PA. The fan-out routing area FA is provided with a plurality of leads for connecting the pins in the pin area PA and the corresponding signal lines in the display area AA. For example, the fan-out routing area FA includes a first lead, a second lead, and a third lead; the pin area PA includes a first pin, a second pin, and a third pin. The first signal line 11 is electrically connected to the first pin through the first lead, the second signal line 12 is electrically connected to the second pin through the second lead, and the third signal line 13 is electrically connected to the third pin through the third lead.
[0030] When the display panel is operating, each pin in the pin area PA receives the signals provided by the integrated circuit and provides the signals to the pixels in the display area AA through the leads in the fan-out routing area FA to drive the display panel to display.
[0031] When setting each lead located in the fan-out routing area FA, as Figure 2 and Figure 3 shown, Figure 2 is a partially enlarged schematic diagram of a display panel provided by an embodiment of the present invention, Figure 3 is another partially enlarged schematic diagram of a display panel provided by an embodiment of the present invention. The fan-out routing area FA includes a first area A1, a second area A2, and a third area A3 arranged in sequence along a first direction h1; the first lead 21, the second lead 22, and the third lead 23 all extend from the first area A1 to at least the third area A3.
[0032] In the first area A1, the first lead 21, the second lead 22, and the third lead 23 are arranged along a second direction h2, and the second direction h2 intersects the first direction h1; exemplarily, the second direction h2 can be perpendicular to the first direction h1.
[0033] In the first area A1, the distance between the first lead 21 and the second lead 22 is d112, and the distance between the second lead 22 and the third lead 23 is d123, and d123≥d112. Exemplarily, as Figure 2 and Figure 3 shown, the first area A1 includes a plurality of first sub-areas A11 and a plurality of second sub-areas A12. The first sub-areas A11 and the second sub-areas A12 are alternately arranged along the second direction h2.
[0034] The first sub-region A11 is provided with a plurality of first-type leads. The first-type leads are used to transmit first-type signals. The first-type leads include the above-mentioned first lead 21, second lead 22, and third lead 23. The first lead 21 and the second lead 22 are located in the same first sub-region A11. The third lead 23 is located in another first sub-region A11. The second sub-region A12 is provided with a plurality of second-type leads. The second-type leads are used to transmit second-type signals. The signal types of the first-type signals and the second-type signals are different. For example, the first-type signals can be data signals, that is, the above-mentioned first signal line 11, second signal line 12, and third signal line 13 can all be data lines for transmitting data signals. The second-type signals include power supply signals or touch signals. Among them, the power supply signal includes any one of the first power supply signal PVDD and the second power supply signal PVEE. As Figure 2 and Figure 3 shown, in the second sub-region A12, the second-type leads include a plurality of fourth leads 24, and the fourth leads 24 are used to transmit any one or several of the first power supply signal PVDD, the second power supply signal PVEE, and the touch signal. The fourth leads 24 are located between the second lead 22 and the third lead 23,
[0035] as Figure 2 and Figure 3 shown, the second sub-region A12 is located between the second lead 22 and the third lead 23. The second lead 22 and the third lead 23 are the two first-type leads with the closest distance in two adjacent first sub-regions A11. The distance d123 between the second lead 22 and the third lead 23 is the width of the second sub-region A12 provided with the second-type leads in the second direction h2.
[0036] It should be noted that Figure 2 and Figure 3 shown, the number of leads in each of the first sub-regions A11 and the second sub-regions A12 and the spacing between any two adjacent leads in any first sub-region A11 and the second sub-region A12 are only for illustration, and in the actual design of the display panel, they can be adjusted according to different design requirements, and the embodiments of the present invention do not limit this.
[0037] as Figure 2 and Figure 3 shown, in the second region A2, the second lead 22 and the third lead 23 are adjacent. The second lead 22 and the third lead 23 being adjacent in the second region A2 means that: in the second region A2, no other first-type leads are provided between the second lead 22 and the third lead 23. Combining Figure 1As shown, the display area AA includes a first pixel column 101, a second pixel column 102, and a third pixel column 103 arranged along the second direction h2. The first pixel column 101, the second pixel column 102, and the third pixel column 103 each include a plurality of sub-pixels 10 arranged along the first direction h1. The second pixel column 102 is located between the first pixel column 101 and the third pixel column 103, and the second pixel column 102 is adjacent to both the first pixel column 101 and the third pixel column 103. The first pixel column 101 is electrically connected to the first signal line 11, the second pixel column 102 is electrically connected to the second signal line 12, and the third pixel column 103 is electrically connected to the third signal line 13. That is to say, the above-mentioned first lead 21, second lead 22, and third lead 23 provided in the fan-out routing area FA can be electrically connected to the three pixel columns, namely the first pixel column 101, the second pixel column 102, and the third pixel column 103, which are adjacent to each other in the display area AA.
[0038] Exemplarily, the sub-pixel 10 includes a light-emitting device and a pixel driving circuit that are electrically connected to each other. The light-emitting device includes any one of an organic light-emitting device, an inorganic light-emitting device, a quantum dot light-emitting device, etc.
[0039] In an embodiment of the present invention, in the second region A2, the second lead 22 and the third lead 23 are arranged in parallel. Alternatively, the second lead 22 and the third lead 23 are symmetrically arranged with respect to a symmetry line. As Figure 2 shown is a schematic diagram of making the second lead 22 and the third lead 23 in the second region A2 arranged in parallel. As Figure 3 shown is a schematic diagram of making the second lead 22 and the third lead 23 symmetrically arranged with respect to the symmetry line 20.
[0040] It should be noted that Figure 2 and Figure 3 the extension directions of the second lead 22 and the third lead 23 in the second region A2 are only for illustration. In the actual setting of the display panel, on the premise of ensuring good insulation between the second lead 22 and the third lead 23, the extension directions of the second lead 22 and the third lead 23 can also be adjusted according to different design requirements. The embodiments of the present invention do not limit this. In addition, Figure 3 the shown symmetry line 20 is a virtual line, and this structure may not be actually provided in the display panel.
[0041] As Figure 2 and Figure 3 shown, in the first region A1 and the third region A3, the first lead 21, the second lead 22, and the third lead 23 are all arranged along the second direction h2. Exemplarily, in the first region A1 and the third region A3, the first lead 21, the second lead 22, and the third lead 23 are all arranged in parallel to compress the length occupied by the first region A1 and the third region A3 in the first direction h1.
[0042] The display panel provided by the embodiment of the present invention divides the fan-out routing area FA into a first area A1, a second area A2, and a third area A3 arranged along the first direction h1, and can differentially set the arrangement mode of the leads arranged therein according to the functions to be realized in each area. In the first area A1, in the embodiment of the present invention, the first lead 21, the second lead 22, and the third lead 23 are arranged along the second direction h2, and the distance d112 between the first lead 21 and the second lead 22 is less than or equal to the distance d123 between the second lead 22 and the third lead 23. With such an arrangement, in the first area A1, a space can be left between the second lead 22 and the third lead 23 for arranging leads for transmitting other types of signals. In the second area A2, in the embodiment of the present invention, by arranging the second lead 22 and the third lead 23 in parallel, or by arranging the second lead 22 and the third lead 23 symmetrically, the lengths of the second lead 22 and the third lead 23 located in the second area A2 can be made the same. While meeting the design requirements of the first area A1, the impedances of the second lead 22 and the third lead 23 passing through the first area A1 and the second area A2 tend to be the same. When each pixel in the display panel displays with the same target brightness, the actual brightness of the second pixel column 102 connected to the second lead 22 and the third pixel column 103 connected to the third lead 23 can be made the same, improving the display uniformity and the display effect of the display panel.
[0043] As Figure 2 and Figure 3 shown, in the third area A3, the distance between the first lead 21 and the second lead 22 is d312. Optionally, in the embodiment of the present invention, it can be set that: d312≥d112, so as to compress the distance between the first lead 21 and the second lead 22 in the first area A1, so as to leave enough space for arranging the second type of leads in the limited space of the first area A1.
[0044] In the third area A3, the distance between the second lead 22 and the third lead 23 is d323. Exemplarily, in the embodiment of the present invention, it can also be set that: d323≤d123. Figure 2 Shown in Figure 3 is a schematic diagram showing d323 = d123,
[0045] As Figure 2 and Figure 3As shown, the fan-out routing area FA further includes a fourth area A4, and the fourth area A4 is located on the side of the third area A3 away from the second area A2; the fourth area A4 includes a first fan-out lead 41, a second fan-out lead 42, and a third fan-out lead 43; the pin area PA includes a first pin 31, a second pin 32, and a third pin 33. The first lead 21 is electrically connected to the first pin 31 through the first fan-out lead 41, the second lead 22 is electrically connected to the second pin 32 through the second fan-out lead 42, and the third lead 23 is electrically connected to the third pin 33 through the third fan-out lead 43.
[0046] In an embodiment of the present invention, at least one of the first fan-out lead 41, the second fan-out lead 42, and the third fan-out lead 43 includes a first oblique line segment 40, and there is a non-zero included angle between the extending direction of the first oblique line segment 40 and the above-mentioned first direction h1. With such a setting, after leading out each lead from the side of the third area A3 away from the display area AA, these leads can converge into one or more fan-out lead bundles in the fourth area A4. The fan-out lead bundle includes any one of the first fan-out lead 41, the second fan-out lead 42, and the third fan-out lead 43 having the first oblique line segment 40. In this way, a pin area PA can be arranged on the side of the first oblique line segment 40 away from the third area A3, and the length of the pin area PA in the second direction h2 can be set to be smaller, so that the setting of the pin area PA matches the integrated circuit with a smaller size.
[0047] When the second lead 22 and the third lead 23 in the second area A2 are set to be symmetrically arranged with respect to the symmetry line 20, combined with Figure 4 as shown, Figure 4 is a partial enlarged schematic diagram of another display panel provided by an embodiment of the present invention. The distance between the second pin 32 and the third pin 33 is d523, and d523 = d323. Exemplarily, in the fourth area A4, the second fan-out lead 42 and the third fan-out lead 43 can be set to be parallel. With such a setting, the lengths of the second fan-out lead 42 and the third fan-out lead 43 can be kept the same, which can further reduce the impedance difference of the leads connected to the second signal line 12 and the third signal line 13, thereby improving the brightness consistency of the second pixel column 102 and the third pixel column 103.
[0048] Optionally, as Figure 2 and Figure 3As shown, the distance between the third region A3 and the first region A1 is less than or equal to the distance between the third region A3 and the pin region PA. That is, in the embodiment of the present invention, the third region A3 can be arranged closer to the first region A1. Such an arrangement is beneficial to compressing the length of the second region A2 in the first direction h1, and can make the length of the second region A2 in the first direction h1 less than or equal to the length of the fourth region A4 in the first direction h1. Compared with the second region A2, the fourth region A4 is closer to the pin region PA. Since the length of the pin region PA along the second direction h2 is small, as described above, when the fan-out leads located in the fourth region A4 are set to include the inclined portion of the first oblique line segment 40, in the embodiment of the present invention, by setting the length of the fourth region A4 in the first direction h1 to be greater than or equal to the length of the second region A2 in the first direction h1, when the number of fan-out leads is certain, it is beneficial to ensure that the distance between two adjacent fan-out leads in the fourth region A4 will not be too small, and good insulation between two adjacent fan-out leads in the fourth region A4 can be ensured. On the other hand, in the embodiment of the present invention, by setting the length of the second region A2 in the first direction h1 to be too small, it is beneficial to reducing the length of the entire fan-out routing region FA in the first direction h1.
[0049] Optionally, as Figure 5 shown, Figure 5 is a partial enlarged schematic diagram of another display panel provided by the embodiment of the present invention. The fan-out routing region FA of the display panel further includes a fifth region A5 located between the third region A3 and the pin region PA. Exemplarily, as Figure 5 shown, the fifth region A5 can be located between the third region A3 and the fourth region A4. The fifth region A5 includes a plurality of gating circuits 5 and N clock signal lines 6, where N≥2. Correspondingly, the gating circuit 5 includes N switching units 50. Figure 5 Taking N = 2 as an example.
[0050] The control end of the switching unit 50 is electrically connected to the corresponding clock signal line 6; the first ends of the N switching units 50 in the same gating circuit 5 are electrically connected to the same pin in the pin region PA. As Figure 5 shown, the first end of the switching unit 50 is electrically connected to the same pin through the fan-out lead located in the fourth region A4. The second ends of the N switching units 50 in the same gating circuit 5 are respectively electrically connected to at least two of the first lead 21, the second lead 22, and the third lead 23 located in the third region A3. As Figure 5 shown, along the second direction h2, the two switching units 50 in the second gating circuit 5 are respectively electrically connected to the first lead 21 and the second lead 22. The first switching unit 50 in the third gating circuit 5 is electrically connected to the third lead 23.
[0051] When the display panel is working, different clock signal lines provide signals for turning on the corresponding switching units 50 in a time-division manner. When the switching unit 50 is turned on, the signals provided by the corresponding pins are provided to the corresponding leads through the switching unit 50. The setting of the gating circuit 5 can reduce the number of pins required for the operation of the display panel. Taking Figure 5 the connection of the first lead 21 and the second lead 22 to the same gating circuit 5 as an example, adopting this setting method, the second pin 32 connected to the second lead 22 can be multiplexed as the first pin 31, which is beneficial to reducing the number of pins. Also, the second fan-out lead 42 connected to the second lead 22 is multiplexed as the first fan-out lead 41, which is beneficial to reducing the number of leads arranged in the fourth area A4, and further can reduce the length occupied by the fourth area A4 in the first direction h1, which is beneficial to improving the screen-to-body ratio of the display panel.
[0052] Exemplarily, in the embodiment of the present invention, the first area A1 includes a bending axis. Each lead in the first area A1 can be bent around the bending axis. Combining Figure 6 as shown, Figure 6 which is a cross-sectional schematic diagram of a display panel provided by an embodiment of the present invention. After the first area A1 is bent, the second area A2, the third area A3, the fourth area A4, and the pin area PA can all be bent to the side of the display panel away from the light-emitting side. Such a setting is beneficial to improving the screen-to-body ratio of the display panel. It should be noted that Figure 6 only shows a positional relationship between the respective areas, and does not show the specific structures in the respective areas.
[0053] Exemplarily, in the first area A1, at least one of the first lead 21, the second lead 22, and the third lead 23 includes a second oblique line segment, and the included angle θ between the extending direction of the second oblique line segment and the extending direction of the bending axis satisfies: 0 ≤ θ < 90°. With such a setting, when the first area A1 is bent, the bending stress on the second oblique line segment in the bent state can be reduced, and the reliability of the lead provided with the second oblique line segment can be improved. It should be noted that the second oblique line segment can be set as a straight line, or can also be set as an arc. When the second oblique line segment is set as an arc, the extending direction at any position of the second oblique line segment is the extending direction of the tangent at the corresponding position. As Figure 7 shown, Figure 7 which is an enlarged schematic diagram of the first area of a display panel provided by an embodiment of the present invention, Figure 7 taking the first lead 21, the second lead 22, and the third lead 23 as examples, all of which are set to include a second oblique line segment 200, and the first lead 21, the second lead 22, and the third lead 23 all have a shape similar to an "8" shape, where the bending axis is schematically shown by a dashed line BX.
[0054] Optionally, as Figure 8 shown, Figure 8 is a schematic cross-sectional view of a first region of a display panel provided by an embodiment of the present invention. In the first region A1, the first lead 21, the second lead 22, and the third lead 23 are arranged in the same layer. Exemplarily, in an embodiment of the present invention, the first lead 21, the second lead 22, and the third lead 23 can be arranged on the neutral plane of the display panel to reduce the bending stress and improve the reliability. Among them, the neutral plane is the film layer with the least stress during the bending process among the respective film layers in the first region A1. The determination of the neutral plane can be based on the thickness and modulus of the respective film layers in the first region A1.
[0055] Optionally, as Figure 8 shown, wherein the fourth lead 24 is arranged in the same layer as the first lead 21.
[0056] Exemplarily, in any one of the second region A2, the third region A3, and the fourth region A4, in an embodiment of the present invention, the first lead 21, the second lead 22, and the third lead 23 can be arranged in the same film layer. Alternatively, in an embodiment of the present invention, the second lead 22 can be arranged in a film layer different from the first lead 21 and the third lead 23, as Figure 9 shown, Figure 9 is a schematic cross-sectional view of a third region of a display panel provided by an embodiment of the present invention. Among them, the first lead 21 and the third lead 23 are arranged in the same layer, and an insulating layer 300 is further included between the second lead 22 and the first lead 21. Such an arrangement is beneficial to reducing the possibility of short circuit between the second lead 22 and the first lead 21 or the third lead 23 and improving the reliability of the display panel.
[0057] Optionally, in any one of the second region A2, the third region A3, and the fourth region A4, in an embodiment of the present invention, the second type of lead for transmitting the second type of signal can be arranged in a film layer different from the first lead 21, the second lead 22, and the third lead 23.
[0058] An embodiment of the present invention further provides a display device, as Figure 10 shown, Figure 10 is a schematic diagram of a display device provided by an embodiment of the present invention. The display device includes the above-mentioned display panel 1000. Among them, the specific structure of the display panel 1000 has been described in detail in the above embodiments and will not be elaborated here. Of course, Figure 10 the shown display device is only for illustrative purposes, and the display device can be any electronic device with a display function such as a mobile phone, a tablet computer, a notebook computer, an e-book, or a television.
[0059] The display device provided by the embodiment of the present invention divides the fan-out routing area of the display panel into a first area, a second area, and a third area arranged along a first direction, and can set the arrangement mode of the leads arranged therein according to the functional differences required by each area. In the first area, the embodiment of the present invention arranges the first lead, the second lead, and the third lead along a second direction, and makes the distance d112 between the first lead and the second lead less than or equal to the distance d123 between the second lead and the third lead. With such an arrangement, in the first area, a space can be left between the second lead and the third lead for arranging leads for transmitting other types of signals. In the second area, the embodiment of the present invention makes the second lead and the third lead parallel to each other or symmetrically arranged, so that the lengths of the second lead and the third lead located in the second area are the same. While meeting the design requirements of the first area, the impedances of the second lead and the third lead passing through the first area and the second area tend to be the same. When each pixel in the display panel displays with the same target brightness, the actual brightness of the second pixel column connected to the second lead and the third pixel column connected to the third lead can be made the same, improving the display uniformity and the display effect of the display panel.
[0060] The foregoing are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A display panel, characterized in that, It includes a display area, a fan-out routing area, and a pin area arranged along a first direction. The fan-out routing area includes a first area, a second area, and a third area arranged in sequence along the first direction; The display area includes a first signal line, a second signal line, and a third signal line; The fan-out routing area includes a first lead, a second lead, and a third lead. The first lead is electrically connected to the first signal line, the second lead is electrically connected to the second signal line, and the third lead is electrically connected to the third signal line; the first lead, the second lead, and the third lead all extend from the first area to at least the third area; In the first area, the first lead, the second lead, and the third lead are arranged along a second direction, and the second direction intersects the first direction; in the first area, the distance between the first lead and the second lead is d112, and the distance between the second lead and the third lead is d123, and d123≥d112; In the second area, the second lead and the third lead are adjacent; and, the second lead and the third lead are arranged in parallel; or, the second area includes a symmetry line, and the second lead and the third lead are symmetrically arranged with respect to the symmetry line; In the third area, the first lead, the second lead, and the third lead are arranged along the second direction; The first signal line, the second signal line, and the third signal line are all used to transmit data signals; The first area further includes a fourth lead, and the fourth lead is located between the second lead and the third lead. The fourth lead is used to transmit a power signal or a touch signal.
2. The display panel according to claim 1, wherein In the third area, the distance between the first lead and the second lead is d312, and the distance between the second lead and the third lead is d323; d312≥d112, d323≤d123.
3. The display panel according to claim 2, wherein In the second area, the second lead and the third lead are symmetrically arranged with respect to the symmetry line; The pin area includes a first pin, a second pin, and a third pin; the first lead is electrically connected to the first pin, the second lead is electrically connected to the second pin, and the third lead is electrically connected to the third pin; The distance between the second pin and the third pin is d523, and d523 = d323.
4. The display panel according to claim 1, wherein The fan-out routing area further includes a fourth area, and the fourth area is located on the side of the third area away from the second area; the fourth area includes a first fan-out lead, a second fan-out lead, and a third fan-out lead; the pin area includes a first pin, a second pin, and a third pin; The first lead is electrically connected to the first pin through the first fan-out lead, the second lead is electrically connected to the second pin through the second fan-out lead, and the third lead is electrically connected to the third pin through the third fan-out lead; At least one of the first fan-out lead, the second fan-out lead, and the third fan-out lead includes a first oblique line segment, and there is a non-zero included angle between the extending direction of the first oblique line segment and the first direction.
5. The display panel according to claim 1, wherein, It further includes a fifth region located between the third region and the pin region. The fifth region includes a plurality of strobe circuits and N clock signal lines, where N≥2; the strobe circuit includes N switch units. The control end of the switch unit is electrically connected to the corresponding clock signal line; the first ends of the N switch units in the same strobe circuit are electrically connected to the same pin in the pin region, and the second ends of the N switch units in the same strobe circuit are respectively electrically connected to at least two of the first lead, the second lead, and the third lead located in the third region.
6. The display panel according to claim 1, wherein The distance between the third region and the first region is less than or equal to the distance between the third region and the pin region.
7. The display panel according to claim 1, wherein The first region includes a bending axis. In the first region, at least one of the first lead, the second lead, and the third lead includes a second oblique line segment, and the included angle θ between the extending direction of the second oblique line segment and the extending direction of the bending axis satisfies: 0≤θ<90°.
8. The display panel according to claim 1, wherein In the first region, the first lead, the second lead, and the third lead are arranged in the same layer.
9. The display panel according to claim 1, wherein The display area further includes a first pixel column, a second pixel column, and a third pixel column. The second pixel column is located between the first pixel column and the third pixel column, and the second pixel column is adjacent to both the first pixel column and the third pixel column; the first pixel column is electrically connected to the first signal line, the second pixel column is electrically connected to the second signal line, and the third pixel column is electrically connected to the third signal line.
10. A display device, characterized in that, It includes the display panel according to any one of claims 1-9.
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