Display panel and display device

Abstract

The utility model provides a display panel and a display device.The display panel comprises a display area and a peripheral area on the periphery of the display area and comprises a driving signal source located in the length direction of the peripheral area; the grid driving circuit comprises at least two grid driving units, the two grid driving units are sequentially arranged in the width direction of the peripheral area, and the driving signal source is connected with the two grid driving units. The gate driving circuit is divided into a plurality of gate driving units which are arranged along the width direction of the peripheral area, so that the signal transmission distance can be effectively reduced, the signal voltage drop can be reduced, and the driving capability and the display quality of the large-size display panel can be improved.

Description

Technical Field

[0001] This application relates to the field of display panel technology, and in particular to a display panel and display device. Background Technology

[0002] In traditional display panels, the gate driving circuit is usually implemented through chips or other external circuits. These circuits need to be connected to the display panel via pins or other connections, which occupies a certain amount of bezel space. GOA technology, on the other hand, integrates the gate driving circuit directly onto the glass substrate of the display panel. It realizes the gate driving function by fabricating thin-film transistors (TFTs) and other components on the glass substrate, thereby reducing the use of external circuits and connections, and allowing the bezel to be made narrower.

[0003] As display panel sizes increase, the wiring length of the gate circuit also increases accordingly. Longer wiring leads to increased resistance, causing a significant voltage drop during signal transmission. When using gate drive circuit technology, the load becomes too heavy, and the gate drive circuit's driving capability becomes insufficient, resulting in related display defects.

[0004] Therefore, providing a display panel and display device that achieves gate driving effect for medium and large-sized display panels, enhances load-bearing capacity, and avoids related display defects has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] This application provides a display panel and a display device.

[0006] This application provides a display panel including a display area and a peripheral area surrounding the display area. The display panel includes a driving signal source located in the length direction of the peripheral area; and a gate driving circuit including at least two gate driving units arranged sequentially along the width direction of the peripheral area. The driving signal source is connected to the two gate driving units respectively.

[0007] In some embodiments, the gate driving circuits are symmetrically distributed on both sides of the display area.

[0008] In some embodiments, the gate driving circuit includes a first gate driving unit, a second gate driving unit, and a third gate driving unit. The first gate driving unit, the second gate driving unit, and the third gate driving unit are located on one side of the display area and are arranged in sequence from far to near the driving signal source. The first gate driving unit, the second gate driving unit, and the third gate driving unit are respectively connected to the driving signal source.

[0009] In some embodiments, the driving signal source includes at least a first sub-driving signal source and a second sub-driving signal source, wherein the first sub-driving signal source is connected to the first sub-gate driving unit, and the second sub-driving signal source is connected to the second gate driving unit and the third gate driving unit, respectively.

[0010] In some embodiments, the first drive signal source and the second drive signal source are located at opposite ends of the display area.

[0011] In some embodiments, the length distributions of the first gate driving unit, the second gate driving unit, and the third gate driving unit are the same.

[0012] In some embodiments, a signal buffer is connected between the drive signal source and each of the gate drive units.

[0013] In some embodiments, a signal amplifier is connected between the driving signal source and each of the gate driving units.

[0014] In some embodiments, a compensation circuit is connected between the driving signal source and each of the gate driving units.

[0015] Another embodiment of this application provides a display device, including the display panel described in the above embodiments.

[0016] This application provides a display panel comprising a display area and a peripheral area surrounding the display area. The panel includes: a driving signal source located along the length of the peripheral area; and a gate driving circuit comprising at least two gate driving units arranged sequentially along the width of the peripheral area. The driving signal source is connected to each of the two gate driving units. By dividing the gate driving circuit into multiple gate driving units and arranging them along the width of the peripheral area, the signal transmission distance can be effectively reduced, the signal voltage drop lowered, thereby improving the driving capability and display quality of large-size display panels. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the display panel structure provided in an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of another display panel structure provided in an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the display device structure provided in an embodiment of this application.

[0022] 10 Driving circuit, 11 Driving signal source, 111 First sub-driving signal source, 112 Second sub-driving signal source, 12 Gate driving circuit, 121 Gate driving unit, 122 First gate driving unit, 123 Second gate driving unit, 124 Third gate driving unit, 100 Display panel 100a Display area, 100b Peripheral area, 13 Signal buffer, 14 Signal amplifier, 15 Compensation circuit Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0025] This application provides a display panel and a display device.

[0026] Please see Figures 1 to 3 This application proposes a display panel 100, which includes a display area 100a and a peripheral area 100b surrounding the display area 100a. The display panel 100 includes a driving signal source 11 and a gate driving circuit 12. The driving signal source 11 is located along the length of the peripheral area 100b. The gate driving circuit 12 includes at least two gate driving units 121, which are arranged sequentially along the width of the peripheral area 100b. The driving signal source 11 is connected to each of the two gate driving units 121.

[0027] The driving signal source 11 can be implemented by fabricating it directly on the glass substrate of the display panel 100 using thin-film transistor (TFT) technology, thereby reducing the use and connection of external circuits and allowing the bezel to be made narrower. The gate driving unit can be implemented by fabricating multiple thin-film transistors on the glass substrate. These transistors can be distributed on one or both sides of the display area 100a in a certain arrangement to enhance the load-carrying capacity.

[0028] The gate driving circuit 12 can be implemented by arranging multiple gate driving units sequentially along the width direction of the peripheral region 100b, and connecting these gate driving units respectively through a driving signal source 11. The driving signal source 11 may include multiple sub-driving signal sources, each connected to a different gate driving unit, to enhance signal transmission efficiency and driving capability.

[0029] This application integrates the gate driving circuit 12 directly onto the glass substrate of the display panel 100, reducing the use and connection of external circuits, thereby allowing for a narrower bezel. Simultaneously, by arranging multiple gate driving units sequentially along the width direction of the peripheral area 100b and connecting these gate driving units respectively through the driving signal source 11, the load-carrying capacity is enhanced, avoiding signal voltage drop problems caused by increased wiring length, thus solving the technical problem of poor gate driving effect in medium and large-sized display panels 100.

[0030] Among them, the drive signal source 11 can provide drive signals.

[0031] Compared with the prior art, the driving circuit of this application has the following advantages: First, by directly integrating the gate driving circuit 12 onto the glass substrate of the display panel 100, the use and connection of external circuits are reduced, allowing the bezel to be made narrower; Second, by arranging multiple gate driving units sequentially along the width direction of the peripheral area 100b and connecting these gate driving units respectively through the driving signal source 11, the load-carrying capacity is enhanced, and the signal voltage drop problem caused by the increase in wiring length is avoided, thereby improving the driving effect of the display panel 100.

[0032] In some embodiments, this application further proposes that the gate driving circuits 12 are symmetrically distributed on both sides of the display area 100a. Specifically, the gate driving circuits 12 include at least two gate driving units, which are arranged sequentially along the width direction of the peripheral area 100b and respectively connected to the driving signal source 11. By symmetrically distributing the gate driving circuits 12 on both sides of the display area 100a, the length of the signal transmission path can be effectively reduced, thereby reducing the resistance and voltage drop during signal transmission and improving the signal transmission efficiency and stability.

[0033] In a preferred embodiment, this application also proposes that the gate driving circuit 12 includes a first gate driving unit 122, a second gate driving unit 123, and a third gate driving unit 124. The first gate driving unit 122, the second gate driving unit 123, and the third gate driving unit 124 are located on one side of the display area 100a and are arranged sequentially from far to near the driving signal source 11. The first gate driving unit 122, the second gate driving unit 123, and the third gate driving unit 124 are respectively connected to the driving signal source 11.

[0034] Specifically, the first gate driving unit 122, the second gate driving unit 123, and the third gate driving unit 124 have the same length distribution. This design ensures signal uniformity during transmission and reduces signal delay or distortion caused by inconsistent wiring lengths. As a preferred embodiment, the driving signal source 11 may include at least a first sub-driving signal source 111 and a second sub-driving signal source 112. The first sub-driving signal source 111 is connected to the first gate driving unit 122, and the second sub-driving signal source 112 is connected to both the second gate driving unit 123 and the third gate driving unit 124. This segmented driving signal source 11 design further optimizes signal distribution and transmission efficiency.

[0035] Therefore, the technical solution of this application effectively solves the signal transmission problem caused by the increased wiring length in traditional technology by arranging multiple gate driving units in a certain order and distance and connecting them to the driving signal source 11. Specifically, by arranging the gate driving units sequentially from far to near the driving signal source 11, the resistance and voltage drop of the signal during transmission can be reduced, thereby improving the signal transmission efficiency and stability. In addition, by connecting the driving signal source 11 in segments, the signal distribution can be further optimized, the load-carrying capacity of the driving circuit can be enhanced, and display defects can be avoided.

[0036] Compared with existing technologies, the technical solution of this application has significant advantages. First, by optimizing the arrangement of the gate driving units and the connection method of the driving signal source 11, the signal transmission efficiency and stability are significantly improved. Second, by designing the segmented driving signal source 11, the load-carrying capacity of the driving circuit is further enhanced, avoiding display defects caused by excessive load. These improvements not only enhance the performance of the display panel 100 but also simplify circuit design and reduce production costs.

[0037] Therefore, the technical solution of this application effectively solves the signal transmission problem caused by the increased wiring length in medium and large-sized display panels 100 through the symmetrically distributed gate driving circuits 12. Compared with the prior art, this solution not only reduces the length of the signal transmission path, but also enhances the load-carrying capacity of the gate driving circuit 12 by optimizing the distribution of the driving signal source 11, thus avoiding display defects caused by signal attenuation.

[0038] Furthermore, this application also proposes that the driving signal source 11 includes at least a first sub-driving signal source 111 and a second sub-driving signal source 112, wherein the first sub-driving signal source 111 is connected to a first sub-gate driving unit, and the second sub-driving signal source 112 is connected to a second gate driving unit 123 and a third gate driving unit 124, respectively.

[0039] Specifically, the design of the first sub-driving signal source 111 and the second sub-driving signal source 112 allows for more flexible allocation of driving signals to different gate driving units. The first sub-driving signal source 111 is specifically responsible for driving the first sub-gate driving unit, while the second sub-driving signal source 112 simultaneously drives the second gate driving unit 123 and the third gate driving unit 124. This allocation method can effectively reduce the length of the signal transmission path, thereby reducing the resistance and voltage drop during signal transmission.

[0040] In a preferred embodiment, the first sub-driving signal source 111 and the second sub-driving signal source 112 can be implemented using different circuit designs. For example, the first sub-driving signal source 111 can employ a low-resistance wiring design to ensure that the signal can be transmitted quickly to the first sub-gate driving unit. The second sub-driving signal source 112 can employ multiplexing technology to drive multiple gate driving units simultaneously with one signal source, thereby reducing circuit complexity and improving signal transmission efficiency.

[0041] Therefore, the technical solution of this application effectively solves the problem of excessive load on the gate driving circuit 12 in medium and large-sized display panels 100 by dividing the driving signal source 11 into multiple sub-driving signal sources 11 and connecting them to different gate driving units. By reducing the length of the signal transmission path and optimizing the signal distribution method, this solution can significantly reduce the resistance and voltage drop during signal transmission, thereby enhancing the load-carrying capacity of the gate driving circuit 12 and avoiding display defects. Compared with the prior art, this solution not only improves the driving effect of the display panel 100, but also simplifies the circuit design and reduces manufacturing costs.

[0042] Furthermore, this application also proposes that the length distributions of the first gate driving unit 122, the second gate driving unit 123, and the third gate driving unit 124 are the same.

[0043] Specifically, the first gate driving unit 122, the second gate driving unit 123, and the third gate driving unit 124 are arranged sequentially on one side of the display area 100a, and their lengths are distributed equally. This design can be achieved by fabricating elements such as thin-film transistors (TFTs) on the glass substrate, ensuring that the length of each gate driving unit is consistent, thereby reducing resistance differences during signal transmission. For example, by uniformly distributing TFT elements on the substrate, the wiring length of each gate driving unit can be made the same, thereby avoiding signal voltage drop problems caused by inconsistent wiring lengths.

[0044] Therefore, the technical solution of this application solves the signal voltage drop problem caused by inconsistent wiring lengths in medium and large-sized display panels 100 by ensuring that the gate driving units have the same length distribution. Compared with the prior art, this solution can effectively enhance the load-carrying capacity of the gate driving circuit 12 and avoid display defects caused by uneven signal transmission. Specifically, by uniformly distributing the length of the gate driving units, the voltage drop of the signal during transmission is reduced, thereby improving the driving effect and display quality of the display panel 100.

[0045] Furthermore, this application proposes that a signal buffer 13 is connected between the drive signal source 11 and each gate drive unit. The function of the signal buffer 13 is to enhance the signal transmission capability and reduce signal attenuation during transmission, thereby ensuring that the signal can be effectively transmitted to each gate drive unit. Specifically, the signal buffer 13 can be implemented using electronic components such as transistors or operational amplifiers, which can effectively isolate electrical interference between the drive signal source 11 and the gate drive units, while providing sufficient drive capability to cope with signal loss caused by long-distance transmission.

[0046] In terms of implementation, the signal buffer 13 can be designed as a single-stage or multi-stage structure. The single-stage structure is suitable for short signal transmission distances, while the multi-stage structure is more suitable for long-distance transmission to enhance signal strength in stages. In addition, the design of the signal buffer 13 can also take into account the effects of temperature compensation and power supply voltage fluctuations, and further improve the stability and reliability of the signal by introducing corresponding compensation circuits 15.

[0047] Through the above technical solution, this application effectively solves the signal attenuation problem caused by the increased wiring length of the gate drive circuit 12 in the medium and large-size display panel 100. Compared with the prior art, this application significantly enhances the signal transmission efficiency and stability by introducing a signal buffer 13 between the drive signal source 11 and the gate drive unit, thereby avoiding display defects caused by signal attenuation and improving the overall performance and reliability of the display panel 100.

[0048] The first driving signal source 111 and the second driving signal source 112 are located at opposite ends of the display area.

[0049] Furthermore, this application proposes that a signal amplifier 14 is connected between the drive signal source 11 and each gate drive unit. The function of the signal amplifier 14 is to enhance the strength of the drive signal to overcome the signal attenuation problem caused by the increase in wiring length. Specifically, the signal amplifier 14 may include one or more amplification stages, each consisting of a transistor and associated bias circuitry, used to gradually increase the voltage or current of the signal. For example, a common-source amplifier or a common-drain amplifier can be used as the basic amplification unit. These amplifiers can effectively enhance the driving capability of the signal and ensure that the signal maintains sufficient strength after long-distance transmission.

[0050] In terms of implementation, the signal amplifier 14 can be integrated on the glass substrate of the display panel 100, arranged adjacent to the gate driving unit, to reduce the length and resistance of the signal transmission path. Furthermore, the design of the signal amplifier 14 can take power consumption and thermal management into account, achieving low-power and high-efficiency signal amplification through optimized circuit design and material selection.

[0051] In summary, by introducing a signal amplifier 14 between the drive signal source 11 and the gate drive unit, the technical solution of this application effectively solves the signal attenuation problem caused by the increased wiring length in medium and large-sized display panels 100. Compared with the prior art, this solution not only enhances the load-carrying capacity of the gate drive circuit 12, but also avoids display defects caused by signal attenuation, thereby improving the overall performance and reliability of the display panel 100.

[0052] Furthermore, this application proposes that a compensation circuit 15 is connected between the driving signal source 11 and each gate driving unit. The function of the compensation circuit 15 is to compensate for signal attenuation or distortion that may occur during signal transmission, so as to ensure that the signal maintains sufficient strength and stability when transmitted to each gate driving unit. Specifically, the compensation circuit 15 may include components such as resistors, capacitors, and inductors. Through the combination of these components, the signal can be appropriately adjusted and compensated, thereby reducing signal loss during long-distance transmission.

[0053] In a preferred embodiment, the compensation circuit 15 can be designed as an adjustable circuit structure, allowing the compensation parameters to be adjusted according to actual needs under different operating conditions. For example, when the display panel 100 is large, signal attenuation becomes more pronounced due to the increased wiring length. In this case, the signal transmission effect can be enhanced by adjusting the resistance or capacitance values ​​in the compensation circuit 15. Furthermore, the compensation circuit 15 can also be used in conjunction with the signal buffer 13 or the signal amplifier 14 to further optimize the signal transmission quality.

[0054] By introducing the compensation circuit 15, the technical solution of this application can effectively solve the problem of insufficient driving capability of the gate driving circuit 12 in the medium and large-size display panel 100. The presence of the compensation circuit 15 ensures that the signal maintains sufficient strength during transmission, avoiding display defects caused by signal attenuation. Compared with the prior art, the technical solution of this application not only improves the load-carrying capacity of the gate driving circuit 12, but also enhances the stability of signal transmission, thereby improving the overall performance of the display panel 100.

[0055] Please see Figure 4 Another embodiment of this application also provides a display device 1000, including the display panel 100 described in the above embodiments. Since the display panel 100 has been described in detail in the above embodiments, the display panel 100 in this application will not be described in detail again.

[0056] The display panel and display device provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. At the same time, those skilled in the art will recognize that there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display panel, comprising a display area and a peripheral area surrounding the display area, characterized in that, include: A drive signal source is located along the length of the peripheral region; A gate driving circuit includes at least two gate driving units, which are arranged sequentially along the width direction of the peripheral region, and the driving signal source is connected to the two gate driving units respectively.

2. The display panel according to claim 1, characterized in that, The gate driving circuits are symmetrically distributed on both sides of the display area.

3. The display panel according to claim 1, characterized in that, The gate driving circuit includes a first gate driving unit, a second gate driving unit, and a third gate driving unit. The first gate driving unit, the second gate driving unit, and the third gate driving unit are located on one side of the display area and are arranged in order from far to near from the driving signal source. The first gate driving unit, the second gate driving unit, and the third gate driving unit are respectively connected to the driving signal source.

4. The display panel according to claim 3, characterized in that, The driving signal source includes at least a first sub-driving signal source and a second sub-driving signal source. The first sub-driving signal source is connected to the first gate driving unit, and the second sub-driving signal source is connected to the second gate driving unit and the third gate driving unit, respectively.

5. The display panel according to claim 4, characterized in that, The first sub-driving signal source and the second sub-driving signal source are located at opposite ends of the display area.

6. The display panel according to claim 3, characterized in that, The length distributions of the first gate driving unit, the second gate driving unit, and the third gate driving unit are the same.

7. The display panel according to any one of claims 1 to 6, characterized in that, A signal buffer is connected between the driving signal source and each of the gate driving units.

8. The display panel according to any one of claims 1 to 6, characterized in that, A signal amplifier is connected between the driving signal source and each of the gate driving units.

9. The display panel according to any one of claims 1 to 6, characterized in that, A compensation circuit is connected between the driving signal source and each of the gate driving units.

10. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 9.

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