Display panel, repair method for display panel, and electronic device

Abstract

Embodiments of the present disclosure provide a display panel, a repair method for the display panel, and an electronic device. The display panel includes a display area and a border area. Pixels are provided in the display area. Pixel driving circuits, first-type driving signal lines, and second-type driving signal lines are provided in the border area. Among them, when there are no unlit pixels during testing, the first-type driving signal lines are used to send driving signals to the pixel driving circuits of the first row to the Nth row. When there are unlit pixels during testing, the first-type driving signal lines are used to send driving signals to the pixel driving circuits of the first row to the (K-1)th row, and the second-type driving signal lines are used to send driving signals to the pixel driving circuits of the Kth row to the Nth row, where the Kth row is the row where the pixels unlit by the driving signals of the first-type driving signal lines are located. In the embodiments of the present disclosure, when there are unlit pixels, the pixel driving circuits are driven by the spare driving signal lines to light up the pixels.

Description

Technical Field

[0001] The present disclosure relates to the field of displays, and particularly to a display panel, a repair method for a display panel, and an electronic device. Background Art

[0002] With the development of OLEDs, a substantial reduction in cost will be the next goal. During the production process of OLED screens, especially higher requirements are put forward for the cleanliness of Particles in the production line, but at the same time, the cost will also increase accordingly. Due to the presence of Particles, it will cause the failure of GOA (Gate on Array, i.e., the driving circuit), thereby reducing the production yield and increasing the product cost. Summary of the Invention

[0003] In view of this, embodiments of the present disclosure propose a display panel, a repair method for a display panel, and an electronic device to solve the following problems in the prior art: Due to the presence of Particles, it will cause the failure of GOA, thereby reducing the production yield and increasing the product cost.

[0004] On the one hand, embodiments of the present disclosure propose a display panel, including: a display area and a border area; pixels are provided in the display area; a pixel driving circuit, a first type of driving signal line, and a second type of driving signal line are provided in the border area; wherein, in the case where there are no unlit pixels in the test, the first type of driving signal line is used to send a driving signal to the pixel driving circuits of the first row to the Nth row; in the case where there are unlit pixels in the test, the first type of driving signal line is used to send a driving signal to the pixel driving circuits of the first row to the (K - 1)th row, the second type of driving signal line is used to send the driving signal to the pixel driving circuits of the Kth row to the Nth row, the Kth row is the row where the pixel unlit by the driving signal of the first type of driving signal line is located, and both K and N are positive integers greater than 1.

[0005] In some embodiments, the number of the second type of driving signal lines is less than or equal to the number of the first type of driving signal lines.

[0006] In some embodiments, the signal types transmitted by the second type of driving signal lines at least include one of the following: a column start signal, a first clock signal, a control bus signal, and a gate driving signal.

[0007] In some embodiments, the second type of driving signal lines and the first type of driving signal lines having the same signal transmission type as the second type of driving signal lines are arranged adjacent to each other.

[0008] In some embodiments, the pixel driving circuit includes: a first driving circuit and a second driving circuit. The first driving circuit is at least configured to receive a column start signal, a first clock signal, and a control bus signal, and the second driving circuit is at least configured to receive a gate driving signal.

[0009] In some embodiments, the pixel driving circuit is a bilateral driving circuit. Wherein, a first driving circuit and a second driving circuit are disposed in each side border area corresponding to each row of pixels.

[0010] In some embodiments, it further includes: a multiplexer, connected to each second type of driving signal line and a control chip, and configured to conduct the control chip and the predetermined second type of driving signal line and block the control chip and other second type of driving signal lines when the predetermined second type of driving signal line accesses the pixel driving circuit of the Kth row.

[0011] In some embodiments, it further includes: an end-to-end connector and a control chip; the end-to-end connector is connected to the control chip, and the control chip is configured to send driving signals to the pixel driving circuit through the first type of driving signal line and the second type of driving signal line.

[0012] On the other hand, an embodiment of the present disclosure provides a method for repairing a display panel. Using the display panel according to any embodiment of the present disclosure, it includes: detecting whether there are unlit pixels; in the case of there being unlit pixels, determining the starting row of the unlit pixels, and disconnecting the first type of driving signal line and the second type of driving signal line between the Kth row and the (K - 1)th row by laser, and connecting the pixel driving circuit of the Kth row to the second type of driving signal line by laser, where the Kth row is the starting row of the unlit pixels.

[0013] On the other hand, an embodiment of the present disclosure provides an electronic device, including: the display panel according to any embodiment of the present disclosure.

[0014] In the embodiments of the present disclosure, two types of driving signal lines are provided in the border area. The first type of driving signal line is a normal driving signal line of the pixel driving circuit, and the second type of driving signal line is a spare driving signal line. When there are unlit pixels, the second type of driving signal line is connected to the starting row of the unlit pixels, and then the pixel driving circuit is driven through the spare driving signal line to light the pixels. Through this solution, when problems are found in the display panel, timely repair can be performed, improving the product yield with minimal improvement and the least cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 Timing waveform diagram of the display panel provided by the related art;

[0017] Figure 2 Schematic diagram of the display panel provided by the embodiment of the present disclosure;

[0018] Figure 3 Schematic diagram of the structure of the single-sided driven display panel provided by the embodiment of the present disclosure;

[0019] Figure 4 Schematic diagram of the repair of the single-sided driven display panel provided by the embodiment of the present disclosure;

[0020] Figure 5 Schematic diagram of the structure of the double-sided driven display panel provided by the embodiment of the present disclosure;

[0021] Figure 6 Schematic diagram of the repair of the double-sided driven display panel provided by the embodiment of the present disclosure;

[0022] Figure 7 Schematic diagram of the repair process of the ESTV signal and the GSTV signal provided by the embodiment of the present disclosure;

[0023] Figure 8 Schematic diagram of the repair operation of the display panel provided by the embodiment of the present disclosure;

[0024] Figure 9 Timing waveform diagram of the repaired display panel provided by the embodiment of the present disclosure;

[0025] Figure 10 Flowchart of the repair method of the display panel provided by the embodiment of the present disclosure.

[0026] Reference numerals:

[0027] 1 - Display area, 2 - Border area, 3 - Control chip, 4 - End-to-end connector, 5 - Second type of drive signal line, 6 - First type of drive signal line, 7 - EM-GOA OUT test pin, 8 - Multiplexer, 10 - Gate / Reset-GOA OUT test pin;

[0028] 51 - EM-GOA repair pin, 52 - Gate / Reset-GOA repair pin;

[0029] The 61-EM-GOA normal input pin, and the 62-Gate / Reset-GOA normal input pin. Specific embodiments

[0030] In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0031] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the ordinary meanings understood by those of ordinary skill in the art to which the present disclosure pertains. The "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or items appearing before the term cover the elements or items listed after the term and their equivalents, without excluding other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", and "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0032] In order to keep the following description of the embodiments of the present disclosure clear and concise, the detailed descriptions of known functions and known components are omitted in the present disclosure.

[0033] To achieve a narrow bezel display effect, most current products use a shared GATE and RST2, and an N-level RST1 is shared with an N+1-level GATE / RST2. The timing waveform diagram can be as Figure 1 shown. It can be seen that local failures will cause a significant drop in product yield.

[0034] To solve the above problems, an embodiment of the present disclosure provides a display panel. The schematic diagram of the display panel is as Figure 2 shown, including:

[0035] A display area 1 and a border area 2; pixels are provided in the display area 1; a pixel driving circuit is provided in the border area 2 ( Figure 2not shown), a first type of driving signal line 6 and a second type of driving signal line 5; wherein, when there are no unlit pixels during the test, the first type of driving signal line is used to send driving signals to the pixel driving circuits of the first row to the Nth row; when there are unlit pixels during the test, the first type of driving signal line is used to send driving signals to the pixel driving circuits of the first row to the (K - 1)th row, and the second type of driving signal line is used to send driving signals to the pixel driving circuits of the Kth row to the Nth row, the Kth row is the row where the pixels not lit by the driving signals of the first type of driving signal line are located, and both K and N are positive integers greater than 1.

[0036] The above display panel is provided with two types of driving signal lines. The first type of driving signal line is a normal driving signal line, and the entire display area is provided with driving signals by the first type of driving signal line. That is, the pixel driving circuits corresponding to the pixels in the first row to the Nth row normally receive driving signals from the first type of driving signal line. Usually, there are many first type of driving signal lines, that is, there are as many first type of driving signal lines as there are driving signals. There is a difference in the number between the second type of driving signal line and the first type of driving signal line. The second type of driving signal line is a spare driving signal line used when there are abnormalities during the test of the display panel. Therefore, only one second type of driving signal line can be set. For example, during the processing of the display panel, it can be judged by experience which driving signal line is most likely to have an abnormality, that is, an additional second type of driving signal line can be set for the first type of driving signal line of this signal type. Of course, the second type of driving signal line can also be set to many, for example, the same number as the first type of driving signal line. Then, when it is detected during the test that there are pixels that cannot be lit by the first type of driving signal line, by replacing all the first type of driving signal lines connected to the Kth row with the second type of driving signal lines, the display panel can be re-lit without having to troubleshoot the cause of the failure.

[0037] In the embodiment of the present disclosure, two types of driving signal lines are provided in the border area. The first type of driving signal line is the normal driving signal line of the pixel driving circuit, and the second type of driving signal line is the spare driving signal line. When there are unlit pixels, the second type of driving signal line is connected to the starting row of the unlit pixels, and then the pixel driving circuit is driven by the spare driving signal line to light the pixels. Through this solution, when a problem is found in the display panel, it can be repaired in time, improving the product yield with the least improvement and the least cost.

[0038] In Figure 2 the pixel driving circuit is schematically shown as a bilateral driving circuit. Therefore, the first type of driving signal line and the second type of driving signal line are both provided in each side border area. Of course, Figure 2Only as an example, if the pixel driving circuit is single-sided driven, those skilled in the art only need to adaptively adjust to set the first type of driving signal line and the second type of driving signal line on any one side of the border area.

[0039] For a pixel driving circuit, it generally includes a first driving circuit and a second driving circuit. The first driving circuit is at least used to receive a column start signal (STV), a first clock signal (CK), and a control bus signal (CB), and the second driving circuit is at least used to receive a gate driving signal (Gate).

[0040] Whether it is a double-sided driven or single-sided driven pixel driving circuit, only corresponding adaptive settings are required.

[0041] For example, Figure 3 It is a display panel with single-sided driving. Among them, a first driving circuit (labeled EM in the figure, that is, EM-GOA) and a second driving circuit (labeled Reset&Gate in the figure, that is, Gate / Reset-GOA) are provided in the unilateral border area corresponding to each row of pixels.

[0042] In Figure 3 the second type of driving signal line is connected to both the first driving circuit and the second driving circuit by a dotted line, indicating that the second type of driving signal line is not connected to the first driving circuit and the second driving circuit. This situation can be the state of the display panel after being tested, that is, there are no unlit pixels in the display panel, so the second type of driving signal line is not actually used. Another situation may be the state of the display panel before being tested, that is, it is not yet determined whether there will be unlit pixels in the display panel. At this time, the second type of driving signal line has not been used to drive the display panel.

[0043] If the display panel has not been tested, it is necessary to perform a row-by-row lighting test on the display panel, so as to determine whether there are display problems with the display panel. When there are display problems with the display panel, determine the starting row of the unlit pixels. For example, if the starting unlit row is the Kth row, then the first type of driving signal line and the second type of driving signal line between the Kth row and the (K - 1)th row can be disconnected by laser, and the pixel driving circuit of the Kth row can be connected to the second type of driving signal line by laser, so that the pixel driving circuit starting from the Kth row is connected to the second type of driving signal line, and the pixel driving circuit starting from the Kth row is provided with a driving signal by the second type of driving signal line. Figure 4 It shows a schematic diagram of disconnecting the driving signal line and connecting a new driving signal line in the above repair process.

[0044] From Figure 3 it can be seen that Figure 3Two second - type driving signal lines are set in [the relevant part], and the number of them is the same as that of the first - type driving signal lines. However, Figure 3 is only an example in [the relevant part]. When specifically setting, the number of the second - type driving signal lines can be determined according to actual requirements. However, no matter how it is set, the number of the second - type driving signal lines should be less than or equal to the number of the first - type driving signal lines. Figure 3 That the number of the first - type driving signal lines in [the relevant part] is two is also only an example. For a pixel driving circuit, it usually includes a column start signal, a first clock signal, a control bus signal, and a gate driving signal. Therefore, the types of signals transmitted by the second - type driving signal lines can at least also be a column start signal, a first clock signal, a control bus signal, a gate driving signal, etc.

[0045] For another example, Figure 5 is a display panel with bilateral driving. Among them, a first driving circuit (labeled EM in the figure, that is, EM - GOA) and a second driving circuit (labeled Reset&Gate in the figure, that is, Gate / Reset - GOA) are set in each side border area corresponding to each row of pixels.

[0046] In Figure 5 , the second - type driving signal lines are connected to both the first driving circuit and the second driving circuit by dotted lines, indicating that the second - type driving signal lines are not connected to the first driving circuit and the second driving circuit. This situation can be the state of the display panel after being tested, that is, there are no unlit pixels in the display panel, so the second - type driving signal lines are not really used. Another situation may be the state of the display panel before being tested, that is, it is not yet determined whether there will be unlit pixels in the display panel. At this time, the second - type driving signal lines are not yet used to drive the display panel.

[0047] If the display panel has not been tested, it is necessary to test the display panel by lighting each row one by one, and then it can be determined whether there are display problems with the display panel. When there are display problems with the display panel, determine the starting row of the unlit pixels. For example, if the starting row of the unlit pixels is the K - th row, then the first - type driving signal lines and the second - type driving signal lines between the K - th row and the (K - 1) - th row can be disconnected by laser, and the pixel driving circuit of the K - th row can be connected to the second - type driving signal lines by laser. Then, the pixel driving circuits starting from the K - th row are all provided with driving signals by the second - type driving signal lines. Figure 6 shows a schematic diagram of the above - mentioned repair process (only the schematic process of connecting the second - type driving signal lines of one signal type is shown in the figure). Since it is bilateral driving, the second - type driving signal lines on both sides of the border area need to be connected to the K - th row, and then the realization of bilateral driving can be ensured.

[0048] FromFigure 5 It can be seen that Figure 5 four second - type driving signal lines are provided in Figure 5 , and the number thereof is the same as that of the first - type driving signal lines. However, this is only an example in Figure 5 . When specifically setting, the number of the second - type driving signal lines can be determined according to actual requirements. However, no matter how it is set, the number of the second - type driving signal lines should be less than or equal to the number of the first - type driving signal lines.

[0049] In the above - mentioned drawings, the second - type driving signal lines and the first - type driving signal lines having the same signal transmission type as the second - type driving signal lines are arranged adjacent to each other. For example, the first - type driving signal lines and the second - type driving signal lines for transmitting the gate driving signal are arranged adjacent to each other. Although the number of wirings is increased, due to the compact design and the narrow single - line width (about 50um), the border width will not be significantly increased. Of course, considering cost and design effect, the embodiments of the present disclosure are preferably applied to large - size display panels.

[0050] The display panel of the embodiment of the present disclosure further includes: an end - to - end connector 4 (B2B connector) and a control chip 3 (IC). Among them, the control chip 3 is arranged in the IC / FPC area; the end - to - end connector is connected to the control chip, and the control chip is used to send driving signals to the pixel driving circuit through the first - type driving signal lines and the second - type driving signal lines.

[0051] When repairing the bilateral - driving display panel shown in Figure 5 , 51 is an EM - GOA repair pin (a kind of second - type driving signal line), 61 is an EM - GOA normal input pin (a kind of first - type driving signal line), 7 is an EM - GOA OUT test pin (a signal line for testing), 52 is a Gate / Reset - GOA repair pin (another kind of second - type driving signal line), 62 is a Gate / Reset - GOA normal input pin (another kind of first - type driving signal line), and 10 is a Gate / Reset - GOA OUT test pin (a signal line for testing). It should be noted that Figure 5 the EM - GOA repair pin 51 and the Gate / Reset - GOA repair pin 52 in

[0052] When the K-th row fails, it will cause the pixels after the K-th row to be unable to be normally displayed. When it is determined that the ESTV signal (i.e., one of the above-mentioned first-type driving signals) needs to be repaired, processes such as laser are used to disconnect the outputs from K - 1 to K, and then the repaired ESTV (i.e., one of the above-mentioned second-type driving signal lines 51) is also connected to the ESTV of the K-th row using laser. Then, the corresponding ESTV signal of the K-th row is output at the IC end. Thus, the EM-GOA signals corresponding to the K-th row to the N-th row can be repaired, and then full-screen normal display can be achieved.

[0053] When it is determined that the GSTV signal (i.e., another first-type driving signal mentioned above) needs to be repaired, processes such as laser are used to disconnect the outputs from K - 1 to K, and then the repaired GSTV (i.e., another second-type driving signal line 52 mentioned above) is also connected to the GSTV of the K-th row using laser. Then, the corresponding GSTV signal of the K-th row is output at the IC end. Thus, the Gate / Reset-GOA signals corresponding to the K-th row to the N-th row can be repaired, and then full-screen normal display can be achieved.

[0054] Figure 7 It is a schematic diagram of the repair process for the above-mentioned ESTV signal and GSTV signal. For the details of the repair process, please refer to the above process.

[0055] The embodiment of the present disclosure also provides a display panel, which includes:

[0056] A display area 1 and a border area 2;

[0057] Pixels are provided in the display area 1;

[0058] A pixel driving circuit, a first-type driving signal line 6, and a second-type driving signal line 5 are provided in the border area 2. Among them, when there are no unlit pixels in the test, the first-type driving signal line is used to send driving signals to the pixel driving circuits of the first row to the N-th row; when there are unlit pixels in the test, the first-type driving signal line is used to send driving signals to the pixel driving circuits of the first row to the K - 1-th row, and the second-type driving signal line is used to send driving signals to the pixel driving circuits of the K-th row to the N-th row. The K-th row is the row where the pixel not lit by the driving signal of the first-type driving signal line is located. Both K and N are positive integers greater than 1;

[0059] An end-to-end connector 4 and a control chip 3, where the end-to-end connector is connected to the control chip, and the control chip is used to send driving signals to the pixel driving circuit through the first-type driving signal line and the second-type driving signal line;

[0060] The multiplexer 8 is connected to each second - type driving signal line and the control chip, and is used to conduct the control chip and the predetermined second - type driving signal line and block the control chip and other second - type driving signal lines when the predetermined second - type driving signal line accesses the pixel driving circuit of the K - th row.

[0061] In the embodiment of the present disclosure, a multiplexer is provided. Through the multiplexer, it is possible to control the disconnection or connection of a certain driving signal line, and thus it is possible to control whether different driving signal lines are selected to access the pixel driving circuit at the same time.

[0062] When the K - th row fails, it will cause the pixels after the K - th row to be unable to be normally displayed. When it is determined that the STV / CK / CB signals need to be repaired, the IC only needs to output a repair driving signal, which can be controlled by a multiplexer (MUX) to select the signal line that needs to be repaired. For example, when CK / CB has a short - circuit / break - circuit simultaneously in different rows, at this time, M2 and M3 in the multiplexer are used to control the second - type driving signal lines, so as to output the corresponding CK / CB to the corresponding row. Figure 8 It is a schematic diagram of the above - mentioned repair operation. Similarly, the same applies to Gate / Reset - GOA, which will not be elaborated here.

[0063] Figure 8 It is a display panel with bilateral driving. Among them, a first driving circuit (labeled EM in the figure, that is, EM - GOA) and a second driving circuit (labeled Reset&Gate in the figure, that is, Gate / Reset - GOA) are provided in each side border area corresponding to each row of pixels. In the figure, the second - type driving signal lines are not connected to the first driving circuit and the second driving circuit, and are connected by dotted lines.

[0064] When there is a display problem with the display panel, determine the starting row of the unlit pixels. For example, if the starting row of the unlit pixels is the K - th row, then the first - type driving signal line and the second - type driving signal line between the K - th row and the (K - 1) - th row can be disconnected by laser, and the pixel driving circuit of the K - th row can be connected to the second - type driving signal line by laser. Then, the pixel driving circuit of the K - th row is connected to the second - type driving signal line, and the pixel driving circuits starting from the K - th row are all provided with driving signals by the second - type driving signal line. Since it is bilateral driving, the second - type driving signal lines on both sides of the border area need to be connected to the K - th row, and then the realization of bilateral driving can be ensured.

[0065] As can be seen from the figure, eight second - type driving signal lines are provided in the figure, which is the same in number as the first - type driving signal lines. However, this is only an example in the figure. When specifically setting, the number of second - type driving signal lines can be determined according to actual requirements. However, no matter how it is set, the number of second - type driving signal lines should be less than or equal to the number of first - type driving signal lines. The eight first - type driving signal lines in the figure are also only an example. For a pixel driving circuit, it usually includes a column start signal, a first clock signal, a control bus signal, a gate driving signal, etc. Therefore, the signal types transmitted by the second - type driving signal lines can at least also be a column start signal, a first clock signal, a control bus signal, a gate driving signal, etc.

[0066] Those skilled in the art can improve Figure 8 the bilateral - driven display panel shown. That is, the bilateral - driven display panel can also be set as a single - side - driven display panel. For details, reference can be made to the above - mentioned embodiments and will not be elaborated here.

[0067] Figure 9 The timing waveform diagram of the repaired display panel is shown. Among them, the K - th row is the repair row. So the Repair - K signal is the K - th row signal, and it continues to be shifted and stored to the n - th row, thereby completing the repair of the GOA and realizing the improvement of product yield.

[0068] The embodiments of the present disclosure also provide a method for repairing a display panel. Using the display panel provided in the above - mentioned embodiments, its process is as Figure 10 shown, including steps S1001 to S1002:

[0069] S1001, detect whether there are unlit pixels;

[0070] S1002, when there are unlit pixels, determine the starting row of the unlit pixels, and disconnect the first - type driving signal lines and the second - type driving signal lines between the K - th row and the (K - 1) - th row by laser, and connect the pixel driving circuit of the K - th row to the second - type driving signal lines, where the K - th row is the starting row of the unlit pixels.

[0071] In the embodiments of the present disclosure, two types of driving signal lines are provided in the border area. The first - type driving signal lines are the normal driving signal lines of the pixel driving circuit, and the second - type driving signal lines are spare driving signal lines. When there are unlit pixels, repair is carried out by laser, and the second - type driving signal lines are connected to the starting row of the unlit pixels, thereby driving the pixel driving circuit through the spare driving signal lines and then lighting the pixels. Through this solution, when problems are found in the display panel, timely repair can be carried out, and the product yield is improved with the least improvement and the lowest cost.

[0072] Embodiments of the present disclosure also provide an electronic device, which includes a display panel disclosed in any embodiment of the present disclosure. The structure of the display panel will not be described herein again.

[0073] Moreover, although exemplary embodiments have been described herein, the scope includes any and all embodiments based on the present disclosure having equivalent elements, modifications, omissions, combinations (e.g., schemes that cross various embodiments), adaptations or alterations. The elements in the claims will be broadly interpreted based on the language employed in the claims and are not limited to the examples described in this specification or during the implementation of this application, and the examples will be interpreted as non-exclusive. Thus, this specification and the examples are intended to be considered only as examples, and the true scope and spirit are indicated by the full scope of the following claims and their equivalents.

[0074] The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. For example, those of ordinary skill in the art can use other embodiments when reading the above description. Additionally, in the above specific implementation manners, various features can be grouped together to simplify the present disclosure. This should not be construed as an intention that a disclosed feature not claimed is necessary for any claim. On the contrary, the subject matter of the present disclosure may be less than all the features of a specific disclosed embodiment. Thus, the following claims are incorporated herein as examples or embodiments into the specific implementation manners, where each claim independently serves as a separate embodiment, and it is contemplated that these embodiments can be combined with each other in various combinations or permutations. The scope of the present disclosure should be determined with reference to the appended claims and the full scope of the equivalents to which those claims are entitled.

[0075] The above has described multiple embodiments of the present disclosure in detail, but the present disclosure is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications to the embodiments based on the concept of the present disclosure, and these variations and modifications should all fall within the scope claimed by the present disclosure.

Claims

1. A display panel, characterized in that, Comprising: A display area and a border area; Pixels are provided in the display area; A pixel driving circuit, a first type of driving signal line, and a second type of driving signal line are provided in the border area; Wherein, when there are no unlit pixels in the test, the first type of driving signal line is used to send driving signals to the pixel driving circuits of the first row to the Nth row; When there are unlit pixels in the test, the first type of driving signal line is used to send driving signals to the pixel driving circuits of the first row to the (K - 1)th row, the second type of driving signal line is used to send the driving signals to the pixel driving circuits of the Kth row to the Nth row, the Kth row is the row where the pixels not lit by the driving signal of the first type of driving signal line are located, both K and N are positive integers greater than 1, and the number of the second type of driving signal lines is less than or equal to the number of the first type of driving signal lines.

2. The display panel according to claim 1, wherein The signal types transmitted by the second type of driving signal lines include at least one of the following: a column start signal, a first clock signal, a control bus signal, and a gate driving signal.

3. The display panel according to claim 2, wherein The second type of driving signal lines and the first type of driving signal lines having the same signal transmission type as the second type of driving signal lines are arranged adjacent to each other.

4. The display panel according to claim 1, wherein The pixel driving circuit includes: a first driving circuit and a second driving circuit, the first driving circuit is at least used to receive a column start signal, a first clock signal, and a control bus signal, and the second driving circuit is at least used to receive a gate driving signal.

5. The display panel according to claim 4, wherein The pixel driving circuit is a bilateral driving circuit, wherein a first driving circuit and a second driving circuit are provided in each side border area corresponding to each row of pixels.

6. The display panel according to any one of claims 1 to 5, characterized in that, Further comprising: A multiplexer, connected to each of the second type of driving signal lines and a control chip, for conducting the control chip and the predetermined second type of driving signal line and blocking the control chip and the other second type of driving signal lines when the predetermined second type of driving signal line is connected to the pixel driving circuit of the Kth row.

7. The display panel according to any one of claims 1 to 5, characterized in that, Further comprising: An end-to-end connector and a control chip; The end-to-end connector is connected to the control chip, and the control chip is used to send driving signals to the pixel driving circuit through the first type of driving signal line and the second type of driving signal line.

8. A repair method for a display panel, using the display panel according to any one of claims 1 to 7, characterized in that, Comprising: Detecting whether there are unlit pixels; When there are unlit pixels, determining the starting row of the unlit pixels, and disconnecting the first type of driving signal line and the second type of driving signal line between the Kth row and the (K - 1)th row by laser, and connecting the pixel driving circuit of the Kth row and the second type of driving signal line by laser, wherein the Kth row is the starting row of the unlit pixels.

9. An electronic device, characterized in that, Comprising: The display panel according to any one of claims 1 to 7.

Images