Display panel and display device

Abstract

The utility model provides a display panel and a display device.The display panel comprises a plurality of chip-on-films arranged side by side and further comprises a plurality of repair lines, the repair lines are connected with amplifiers of the chip-on-films respectively, the data lines comprise a plurality of fault data lines, and the fault data lines are connected with the amplifiers of the chip-on-films respectively. And the plurality of fault data lines can be connected with different chip on films through repair lines so as to repair the fault data lines. The display panel provided by the utility model can repair a plurality of broken data lines at the same time.

Description

Technical Field

[0001] This application relates to the field of liquid crystal displays, and more specifically, to display panels and display devices. Background Technology

[0002] Currently, televisions, computers, and other electronic devices are trending towards larger screen sizes. In the panel industry, a common issue in current LCD panel design and manufacturing is broken data cables causing image anomalies, specifically the appearance of bright and dark lines on the screen. The solution is to repair these anomalies using driver integrated circuits. The repair principle involves converting the line anomaly into a dark spot. Since the human eye is more sensitive to bright and dark lines but less so to dark spots, this method is more readily accepted while adhering to product specifications, resulting in a higher yield rate for the repaired display panel.

[0003] As technology advances, people have higher and higher requirements for display panels, expecting a larger display area and a smaller non-display area. Therefore, when data line breakage occurs, the existing data line breakage repair method involves designing a few repair lines in the non-display area and limiting the design to a small area. The advantage of this method is that it does not occupy the space of the display area. However, due to the small size of the non-display area, the number of broken lines that can be repaired is limited, and each set of driver chips can only repair the corresponding area, which cannot handle the situation of multiple broken lines occurring simultaneously. Utility Model Content

[0004] Therefore, the technical problem to be solved by this application is to provide a data cable repair method for a display panel without occupying the aperture ratio of the display panel, so that multiple data cables can be repaired.

[0005] In a first aspect, this application provides a display panel, which includes:

[0006] Multiple flip-chip films are arranged side by side.

[0007] The display panel also includes multiple repair lines, which are respectively connected to amplifiers of multiple flip-chip films.

[0008] The multiple data lines include multiple faulty data lines, and the multiple faulty data lines can be connected to different flip-chip films through repair lines to repair the faulty data lines.

[0009] Furthermore, the plurality of repair lines includes a plurality of horizontal input repair lines, a plurality of vertical input repair lines, and a plurality of output repair lines.

[0010] The plurality of horizontal input repair lines are located in the non-display area of ​​the display panel, and between the display area of ​​the display panel and the plurality of flip-chip films.

[0011] One end of each of the plurality of vertical input patch lines is connected to the amplifier, and the other end is connected to the horizontal input patch line. The plurality of horizontal input patch lines intersect the data line in an insulated manner.

[0012] One end of the output repair line is connected to the other end of the amplifier, and the other part intersects with the other end of the data line insulated from each other.

[0013] When the data line has no fault breakpoint, the repair line and the data line are crossed and insulated. When one of the data lines has a fault breakpoint, the end of the data line away from the breakpoint is electrically connected to the horizontal input repair line of the repair line, and the other end of the data line away from the breakpoint is electrically connected to the output repair line of the repair line. The data lines are of the same source signal, thereby realizing the restoration of data at the breakpoint.

[0014] Furthermore, the plurality of horizontal input patch lines extend along the length of the display area and are arranged at intervals to each other.

[0015] Furthermore, the plurality of flip-chip films are arranged side by side in the non-display area, and each flip-chip film includes a plurality of amplifiers, which are respectively connected to the plurality of horizontal input repair lines through a plurality of vertical input repair lines.

[0016] Furthermore, the plurality of flip-chip films include a first flip-chip film and a second flip-chip film arranged side by side, and each flip-chip film contains n amplifiers.

[0017] The multiple fault data lines are concentrated on one side close to the first flip-chip film.

[0018] When n+1 faulty data lines at the same location are disconnected, the first to nth faulty data lines can be repaired by the first flip-chip film, and the n+1th faulty data line can be repaired by the second flip-chip film.

[0019] Furthermore, the plurality of flip-chip films include a first flip-chip film and a second flip-chip film arranged side by side.

[0020] The multiple fault data lines are evenly distributed across the display area of ​​the display panel.

[0021] The plurality of faulty data lines located near the first flip-chip film can be repaired through the first flip-chip film.

[0022] The plurality of faulty data lines near the second flip-chip film can be repaired by the second flip-chip film.

[0023] Furthermore, at least one of the flip-chip films is provided with a plurality of amplifiers connected in parallel, the plurality of amplifiers being connected to a horizontal input repair line through a plurality of vertical input repair lines, and the plurality of amplifiers being connected to an output repair line.

[0024] Furthermore, the portion of the output repair line after the connection point with the faulty data line is cut off.

[0025] Furthermore, the non-display area of ​​the display panel is located around the display area and includes, in sequence, a lower non-display area, a left non-display area, a right non-display area, and an upper non-display area;

[0026] The output repair line includes a first output repair line and a second output repair line. The first output repair line is arranged along the lower non-display area, through the left non-display area and the upper non-display area, intersecting with one end of the data line in an insulated manner; or

[0027] The second output repair line is arranged to intersect one end of the data line in an insulated manner along the lower non-display area, through the right non-display area and the upper non-display area.

[0028] Secondly, this application provides a display device including a display panel.

[0029] Compared with the prior art, this application introduces a horizontal input repair line, which enables multiple broken data lines to be repaired in a timely manner at any position on the display panel without occupying the aperture ratio of the display screen or affecting the usable area of ​​the display area. Attached Figure Description

[0030] Figure 1 This is an overall schematic diagram of an embodiment of this application.

[0031] Figure 2 This is a schematic diagram of a data line breakage according to an embodiment of this application.

[0032] Figure 3 This is a schematic diagram of a concentrated disconnection of a faulty data line according to an embodiment of this application.

[0033] Figure 4 This is a schematic diagram of scattered disconnections of the faulty data line according to an embodiment of this application.

[0034] Figure 5 This is a schematic diagram of the connection of the fault data line when multiple amplifiers are connected in parallel according to an embodiment of this application.

[0035] Explanation of main component symbols

[0036] 10. Flip-chip film; 10a. First flip-chip film; 10b. Second flip-chip film; 10c. Third flip-chip film; 11. Amplifier; 11a1, 11b1. First amplifier; 11a2, 11b2. Second amplifier; 52. Vertical input repair line; 30. Data line; 50. Repair line; 501. First repair line; 502. Second repair line; 503. Third repair line; 51. Horizontal input repair line; 53. Output repair line; 53a. First output repair line; 53a1. First connection line; 53a2. Second connection line Wiring; 53a3 Third connection line; 53b Second output repair line; 53b1 First connection line; 53b2 Second connection line; 53b3 Third connection line; 60 Lower non-display area; 70 Left non-display area; 80 Right non-display area; 90 Upper non-display area; SF Fault data line; SF1 First fault data line; SF2 Second fault data line; SF3 Third fault data line; SC Fault breakpoint; sf1 First sub-fault line; sf2 Second sub-fault line; 100 Display panel. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] [Implementation Method]

[0039] Reference Figure 1 The display device 200 includes a display panel 100, a power module (not shown), and a support frame (not shown). The display panel 100 and the power module are fixed to the support frame. The power module provides power voltage to the display panel 100 for image display, and the support frame provides fixation and protection for the display panel and the power module. In other embodiments of this application, the display device 100 may not require a support frame, for example, it may be a portable electronic device, such as a mobile phone or tablet computer. Figure 1 and Figure 2As shown, this embodiment provides a display panel 100, which includes a display area AA and a non-display area NAA surrounding the display area AA. The display area AA is provided with multiple scan lines G extending along a first direction F1 and arranged sequentially along a second direction F2, multiple data lines 30 extending along the second direction F2 and arranged sequentially along the first direction F1, and multiple pixel units arranged in an array. The pixel units are used to receive scan signals from the scan lines and, under the control of the scan signals, receive data signals from the data lines 30 to display images.

[0040] The display panel 100 includes multiple flip-chip films 10 and multiple repair lines 50.

[0041] Multiple flip-chip films 10 and multiple repair lines 50 are disposed in the non-display area NAA. The non-display area NAA includes a lower non-display area 60, a left non-display area 70, a right non-display area 80, and an upper non-display area 90.

[0042] like Figure 2 As shown, the lower non-display area 60 is provided with multiple flip-chip films 10. The multiple flip-chip films 10 include multiple first flip-chip films 10a and multiple second flip-chip films 10b. An amplifier 11 is also provided inside each flip-chip film 10. The number of amplifiers 11 on each flip-chip film 10 is unlimited; there can be one or multiple amplifiers operating independently simultaneously. Each amplifier 11 corresponds to one data line 30. It is understandable that one data line 30 can also correspond to multiple amplifiers 11, that is, multiple amplifiers 11 are connected in parallel to one data line 30, thereby improving the transmission speed of the data line 30.

[0043] Multiple first flip-chip films 10a, multiple second flip-chip films 10b, and multiple third flip-chip films 10c are disposed in the lower non-display area 60, with the multiple first flip-chip films 10a located in the left-hand region of the lower non-display area 60, the multiple second flip-chip films 10b located in the middle region of the lower non-display area 60, and the multiple third flip-chip films 10c located in the right-hand region of the lower non-display area 60.

[0044] Each repair line 50 includes a horizontal input repair line 51, a vertical input repair line 52, and an output repair line 53.

[0045] Multiple horizontal input repair lines 51 are disposed in the lower non-display area 60, located between the display area AA and multiple flip-chip films 10. Adjacent horizontal input repair lines 51 are spaced apart. The length of each horizontal input repair line 51 is not less than the length of one flip-chip film 10, which in this embodiment means it covers the length of the display area AA. The multiple horizontal input repair lines 51 are connected to corresponding amplifiers 11 via multiple vertical input repair lines 52. The multiple horizontal input repair lines 51 are spaced parallel to each other and extend along the length of the display area AA, so that when a break occurs simultaneously at the same or different locations, the data line 30 can be repaired using the multiple horizontal input repair lines 51 and output repair lines 53.

[0046] The multiple output repair lines 53 include a first output repair line 53a and a second output repair line 53b. The first output repair line 53a is arranged along the lower non-display area 60, the left non-display area 70 and the upper non-display area 90, while the second output repair line 53b is arranged along the lower non-display area 60, the right non-display area 80 and the upper non-display area 90.

[0047] Multiple first output repair lines 53a are connected to multiple amplifiers 11 of the corresponding multiple first flip-chip films 10a, and multiple second output repair lines 53b are connected to multiple amplifiers 11 of the corresponding multiple third flip-chip films 10c. Multiple amplifiers 11 in the second flip-chip film 10b located between the first flip-chip film 10a and the third flip-chip film 10c can be connected to the multiple first output repair lines 53a or to the second output repair lines 53b at close range.

[0048] The first output repair line 53a includes a first connecting line 53a1, a second connecting line 53a2, and a third connecting line 53a3. The first connecting line 53a1 is located in the lower non-display area 60, with one end connected to the output interface of the amplifier 11 and the other end connected to the second connecting line 53a2. The second connecting line 53a2 is located in the left non-display area 70, with one end connected to the first connecting line 53a1 and the other end connected to the third connecting line 53a3. The third connecting line 53a3 is located in the upper non-display area 90, with one end connected to the second connecting line 53a2 and the other end extending along the length of the upper non-display area 90 (i.e., the direction in which the multiple amplifiers 11 are installed side-by-side), so that the third connecting line 53a3 is parallel to the horizontal input repair line 51.

[0049] In a repair line 50, one end of the vertical input repair line 52 is connected to a corresponding amplifier 11 of the corresponding flip-chip film 10, and the other end is connected to a corresponding horizontal input repair line 51. The first connection line 53a1 is connected to the same amplifier 11 as described above, so that the corresponding repair line 50 transmits the same source signal.

[0050] Similarly, the second output repair line 53b has the same structure as the first output repair line 53a, and also includes a first connecting line 53b1, a second connecting line 53b2, and a third connecting line 53b3. The first connecting line 53b1 is located in the lower non-display area 60, the second connecting line 53b2 is located in the right non-display area 80, and the third connecting line 53b3 is located in the upper non-display area 90.

[0051] In the upper non-display area 90, the third connecting line 53b3 of the second output repair line 53b and the third connecting line 53a3 of the first output repair line 53a are arranged in parallel with each other at staggered intervals.

[0052] The corresponding horizontal input repair line 51 and output repair line 53 are independently set and located in different positions but have the same source signal. One end of the output repair line 53 can intersect with the end of the data line 30 away from the flip-chip film 10, and the other end is electrically connected to the vertical input repair line 52 through the other output terminal of the amplifier 11. The horizontal input repair line 51 is located between the flip-chip film 10 and the display area of ​​the display panel 100, and the ends of the horizontal input repair line 51 and the data line 30 intersect on different planes. The vertical input repair line 52 has two connection methods: when the data line 30 is not broken, the vertical input repair line 52 directly does not intersect with the other end of the data line 30; when the data line 30 is broken, the vertical input repair line 52 is electrically connected to one end of the data line 30 through the horizontal input repair line 51.

[0053] The repair line 50 is used to repair the data line 30 when it has a break. It should be noted that the repair line 50 and the data line 30 must be wrapped with different metal layers to avoid short circuits. Specifically, in this embodiment, the surface of the repair line 50 is wrapped with a first type of metal, and the surface of the data line 30 is wrapped with a second type of metal.

[0054] When the data line 30 is not broken, one end of the repair line 50 intersects with one end of the data line 30 but is insulated. When the data line 30 is broken, laser welding is performed at the intersection of the repair line 50 and the data line 30 in a preset laser area. Then, redundant traces are cut off to reduce impedance, thereby completing the break repair and restoring signal continuity. It should be noted that in this implementation scheme, "intersection" refers to overlapping vertically.

[0055] Specifically, there are multiple horizontal input repair lines 51 and output repair lines 53, and the spacing between two adjacent repair lines is not less than 2um to ensure sufficient space for laser welding.

[0056] When multiple broken data lines are concentrated in the same area, different flip-chip films 10 can be used to repair the data lines 30.

[0057] The horizontal input repair lines 51 of the multiple repair lines 50 are respectively connected to amplifiers 11 of different flip-chip films 10. For example, as Figure 1 As shown, a first flip-chip film 10a and a second flip-chip film 10b are disposed adjacent to each other. The first flip-chip film 10a includes a first amplifier 11a1 and a second amplifier 11a2, and the second flip-chip film 10b includes a first amplifier 11b1 and a second amplifier 11b2. A plurality of repair lines 50 include a first repair line 501, a second repair line 502, and a third repair line 503. The first repair line 501 is connected to the first amplifier 11a1 of the first flip-chip film 10a, the second repair line 502 is connected to the second amplifier 11a2 of the first flip-chip film 10a, and the third repair line 503 is connected to the first amplifier 11b1 of the second flip-chip film 10b.

[0058] Each fault data line SF includes a fault breakpoint SC, and a first sub-fault line sf1 and a second sub-fault line sf2 located on both sides of the fault breakpoint SC. The first sub-fault line sf1 is away from the flip-chip film 10 and electrically disconnected from the flip-chip film 10.

[0059] like Figure 3 As shown, when the first faulty data line SF1, the second faulty data line SF2, and the third faulty data line SF3 are concentrated in the same area, the first faulty data line SF1 and the second faulty data line SF2 are repaired by the first flip-chip film 10a, and the third faulty data line SF3 is repaired by calling the second flip-chip film 10b. This ensures that multiple faulty data lines SF concentrated in the same location are repaired by calling different flip-chip films 10, thereby effectively repairing the broken data line 30 without affecting the pixel transmittance. This optimizes the repair method in non-display areas, improves the repair yield in areas where broken lines are concentrated, and reduces production costs.

[0060] Specifically, when repairing the first faulty data line SF1, the side of the second sub-faulty line sf2 away from the fault breakpoint SC is welded to the overlapping part of the horizontal input repair line 51 of the first repair line 501, so that the second sub-faulty line sf2 is connected to the first amplifier 11a1 of the first flip-chip film 10a and receives data signals from the first flip-chip film 10a.

[0061] The side of the first sub-fault line SF1 furthest from the fault breakpoint SC is soldered to the overlapping portion of the third connecting line 53a3 of the first output repair line 53a of the first repair line 501, and the solder joint on the third connecting line 53a3 is cut off. The second sub-fault line SF2 is connected to the first amplifier 11a1 of the first flip-chip film 10a and receives data signals from the first flip-chip film 10a. Thus, the second sub-fault line SF2 and the first sub-fault line SF1 receive signals from the same source, thereby achieving the repair of the first faulty data line SF1.

[0062] The repair methods for the second faulty data line SF2 and the third faulty data line SF3 are the same as those for the first faulty data line SF.

[0063] The second fault data line SF2 is connected to the second amplifier 11a2 of the first flip-chip film 10a via the second repair line 502, while the third fault data line SF3 is connected to the first amplifier 11b1 of the second flip-chip film 10b via the third repair line 503. Thus, the three adjacent fault data lines SF can call the flip-chip film 10 at different positions.

[0064] like Figure 4 As shown, when the first fault data line SF1, the second fault data line SF2, and the third fault data line SF3 are distributed within the display area, that is, the first fault data line SF1 is located on the side of the display area closer to the left non-display area 70, the second fault data line SF2 is located in the middle of the display area, and the third fault data line SF3 is located on the side of the display area closer to the right non-display area 80. Similarly, the first flip-chip film 10a, the second flip-chip film 10b, and the third flip-chip film 10c are arranged adjacently and distributed at different positions in the lower non-display area 60, respectively corresponding to the first fault data line SF1, the second fault data line SF2, and the third fault data line SF3. When the first fault data line SF1, the second fault data line SF2, and the third fault data line SF3 are all broken, the first flip-chip film 10a, the second flip-chip film 10b, and the third flip-chip film 10c closest to the broken data line 30 are connected and repaired. Therefore, when the broken data lines 30 are relatively evenly distributed, they can be repaired by calling the flip-chip film 10 closest to the broken data lines 30.

[0065] like Figure 5 As shown, to further enhance thrust, multiple amplifiers 11 can be connected in parallel to the same data line 30. When data lines 30 are broken and concentrated in the same area or evenly distributed, the flip-chip film 10 closest to the broken data line 30 can be used for repair. Specifically, when the first flip-chip film 10a and the second flip-chip film 10b are located on the left and in the middle of the lower non-display area 60, respectively, the first amplifier 11a1 and the second amplifier 11a2 in the first flip-chip film 10a are connected in parallel and close to the first faulty data line SF1, and the first amplifier 11b1 and the second amplifier 11b2 in the second flip-chip film 10b are connected in parallel and close to the second faulty data line SF2. The first faulty data line SF1 is repaired by the first amplifier 11a1 and the second amplifier 11a2 of the first flip-chip film 10a, and the second faulty data line SF2 is repaired by the first amplifier 11b1 and the second amplifier 11b2 of the second flip-chip film 10b.

[0066] In this solution, when a data line 30 breaks or there are many broken data lines 30 that are evenly distributed in various positions of the display area, the nearest flip-chip film 10 and its amplifier 11 can be called to repair the data line 30, following the principle of proximity. One end of the faulty data line SF is fused together with the output repair line 53 connected to its corresponding amplifier 11, and the other end of the faulty data line SF is repaired through the horizontal input repair line 51, thereby completing the repair work of the data line. The remaining broken data lines 30 can call on the adjacent other amplifiers 11 or flip-chip films 10, and connect to the vertical input repair line 52 of another amplifier 11 through the horizontal input repair line 51. The vertical input repair line 52 of the other amplifier 11 is connected to the output repair line 53 of other areas through the output end. The output repair line 53 is laser-fused with the broken data line 30 in the preset laser area from the lower non-display area 60, through the left non-display area 70, and then to the upper non-display area 90. Alternatively, it can be laser-fused with the broken data line 30 in the preset laser area from the lower non-display area 60, through the right non-display area 80, and then to the upper non-display area 90, thereby realizing the signal connection of the broken data.

[0067] This embodiment, by employing the display panel 100 provided above, enables the simultaneous repair of multiple broken data lines 30 without affecting the aperture ratio of the display area.

Claims

1. A display panel comprising a plurality of flip-chip films and a plurality of data lines arranged sequentially, characterized in that, include: Multiple flip-chip films are arranged side by side. The display panel also includes multiple repair lines, which are respectively connected to amplifiers of multiple flip-chip films. The multiple data lines include multiple faulty data lines, and the multiple faulty data lines can be connected to different flip-chip films through repair lines to repair the faulty data lines.

2. The display panel as described in claim 1, characterized in that, The multiple repair lines include multiple horizontal input repair lines, multiple vertical input repair lines, and multiple output repair lines. The plurality of horizontal input repair lines are located in the non-display area of ​​the display panel, and between the display area of ​​the display panel and the plurality of flip-chip films. One end of each of the plurality of vertical input patch lines is connected to the amplifier, and the other end is connected to the horizontal input patch line. The plurality of horizontal input patch lines intersect the data line in an insulated manner. One end of the output repair line is connected to the other end of the amplifier, and the other part intersects with the other end of the data line insulated from each other. When the data line has no fault breakpoint, the repair line and the data line are crossed and insulated. When one of the data lines has a fault breakpoint, the end of the data line away from the breakpoint is electrically connected to the horizontal input repair line of the repair line, and the other end of the data line away from the breakpoint is electrically connected to the output repair line of the repair line. The data lines are of the same source signal, thereby realizing the restoration of data at the breakpoint.

3. The display panel as described in claim 2, characterized in that: The plurality of horizontal input patch lines extend along the length of the display area and are arranged at intervals.

4. The display panel as described in claim 3, characterized in that: The plurality of flip-chip films are arranged side by side in the non-display area, and each flip-chip film includes a plurality of amplifiers, which are respectively connected to the plurality of horizontal input repair lines through a plurality of vertical input repair lines.

5. The display panel as described in claim 4, characterized in that: The plurality of flip-chip films include a first flip-chip film and a second flip-chip film arranged side by side, and each flip-chip film contains n amplifiers. The multiple fault data lines are concentrated on one side close to the first flip-chip film. When n+1 faulty data lines at the same location are disconnected, the first to nth faulty data lines can be repaired by the first flip-chip film, and the n+1th faulty data line can be repaired by the second flip-chip film.

6. The display panel as described in claim 4, characterized in that: The plurality of flip-chip films include a first flip-chip film and a second flip-chip film arranged side by side. The multiple fault data lines are evenly distributed across the display area of ​​the display panel. The plurality of faulty data lines located near the first flip-chip film can be repaired through the first flip-chip film. The plurality of faulty data lines near the second flip-chip film can be repaired by the second flip-chip film.

7. The display panel as described in claim 2, characterized in that: At least one of the flip-chip films is provided with a plurality of amplifiers connected in parallel, the plurality of amplifiers are connected to a horizontal input repair line through a plurality of vertical input repair lines, and the plurality of amplifiers are connected to an output repair line.

8. The display panel as described in claim 5 or 6, characterized in that, The portion of the output repair line after the connection point with the faulty data line is cut off.

9. The display panel as described in claim 4, characterized in that, The non-display area of ​​the display panel is located around the display area and includes, in sequence, a lower non-display area, a left non-display area, a right non-display area, and an upper non-display area; The output repair line includes a first output repair line and a second output repair line. The first output repair line is arranged along the lower non-display area, through the left non-display area and the upper non-display area, intersecting with one end of the data line in an insulated manner; or The second output repair line is arranged to intersect one end of the data line in an insulated manner along the lower non-display area, through the right non-display area and the upper non-display area.

10. A display device, characterized in that, The display panel includes any one of claims 1-9.

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