CN107808634B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN107808634B CN107808634B CN201711235429.9A CN201711235429A CN107808634B CN 107808634 B CN107808634 B CN 107808634B CN 201711235429 A CN201711235429 A CN 201711235429A CN 107808634 B CN107808634 B CN 107808634B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0202—Addressing of scan or signal lines
Abstract
The invention discloses a display panel and a display device, wherein the display panel comprises a display area, a non-display area, a substrate base plate, a plurality of scanning lines, a plurality of data lines, pixel units and virtual pixel units; the pixel unit comprises a first driving circuit and a pixel electrode, wherein the first driving circuit comprises a first drain electrode; the dummy pixel unit comprises a second driving circuit, and the second driving electrode comprises a second drain electrode; the first floating electrodes are arranged along the extension direction of the scanning lines and used for connecting the first drain electrode and the second drain electrode when the first driving circuit is damaged; the vertical projection of the second floating electrode on the substrate base plate and the vertical projection of the first floating electrode on the substrate base plate have a first overlapping area, the vertical projection of the first drain electrode on the substrate base plate and the vertical projection of the first drain electrode have a second overlapping area, and no overlapping area exists between the vertical projection of the second floating electrode and the vertical projection of the pixel electrode on the substrate base plate. Therefore, the pixel electrode is not damaged when the second floating electrode is connected with the first floating electrode and the first drain electrode.
Description
Technical Field
The embodiment of the invention relates to the technical field of semiconductors, in particular to a display panel and a display device.
Background
In recent years, Organic Light-Emitting diodes (OLEDs) have become very popular flat display products at home and abroad because OLED displays have the characteristics of self-luminescence, wide viewing angle, short reaction time, high luminous efficiency, wide color gamut, low operating voltage, thin panel, capability of manufacturing large-sized and flexible panels, simple manufacturing process, and the like, and also have the potential of low cost.
In the prior art, the OLED display panel inevitably has one or more defective pixel units, and in order to improve the yield of the OLED display panel, the defective pixel units need to be repaired. However, when the pixel unit is modified, the pixel electrode in the OLED display panel may be damaged, which may affect the normal display of the display panel.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a display panel and a display device to solve the technical problem in the prior art that a pixel electrode may be damaged when a dark spot repair is performed on a pixel unit.
In a first aspect, an embodiment of the present invention provides a display panel, including a display area and a non-display area surrounding the display area, further including:
a substrate base plate;
a plurality of scanning lines and a plurality of data lines formed on the substrate, the plurality of scanning lines and the plurality of data lines are insulated and crossed to define a plurality of pixel units positioned in the display area and virtual pixel units positioned in the non-display area; the pixel unit comprises a first driving circuit and a pixel electrode which are sequentially formed on the substrate, the first driving circuit comprises a first drain electrode, and the first drain electrode is electrically connected with the pixel electrode; the dummy pixel unit comprises a second driving circuit formed on the substrate base plate, and the second driving electrode comprises a second drain electrode;
the first floating electrodes are formed between the substrate and the film layer where the pixel electrodes are located, the first floating electrodes are arranged along the extension direction of the scanning lines, and the first floating electrodes are used for connecting a first drain electrode corresponding to the first driving circuit and a second drain electrode corresponding to the second driving circuit arranged in the same row as the first driving circuit when the first driving circuit is damaged;
the display panel also comprises a plurality of second floating electrodes formed between the substrate and the film layer where the pixel electrodes are located, and a first overlapping area exists between the vertical projection of the second floating electrodes on the substrate and the vertical projection of the first floating electrodes on the substrate;
a second overlapping area exists between the vertical projection of the second floating electrode on the substrate and the vertical projection of the first drain electrode on the substrate; and the vertical projection of the second floating electrode on the substrate and the vertical projection of the pixel electrode on the substrate have no overlapping area;
the second floating electrode is used for respectively connecting the first floating electrode and the first drain electrode corresponding to the first driving circuit when the first driving circuit is damaged.
In a second aspect, an embodiment of the present invention provides another display panel, including a display area and a non-display area surrounding the display area, further including:
a substrate base plate;
a plurality of scanning lines and a plurality of data lines formed on the substrate, the plurality of scanning lines and the plurality of data lines are insulated and crossed to define a plurality of pixel units positioned in the display area and virtual pixel units positioned in the non-display area; the pixel unit comprises a first driving circuit and a pixel electrode which are sequentially formed on the substrate, the first driving circuit comprises a first drain electrode, and the first drain electrode is electrically connected with the pixel electrode; the dummy pixel unit comprises a second driving circuit formed on the substrate base plate, and the second driving electrode comprises a second drain electrode;
a plurality of first floating line floating electrodes formed between the substrate and a film layer where the pixel electrodes are located, the plurality of first floating line floating electrodes being arranged along the extending direction of the scanning lines, the first floating line floating electrodes being used for connecting a first drain electrode corresponding to the first driving circuit and a second drain electrode corresponding to the second driving circuit arranged in the same row as the first driving circuit when the first driving circuit is damaged;
the display panel further comprises a plurality of third floating electrodes, the third floating electrodes are formed between the film layer where the data lines are located and the film layer where the pixel electrodes are located, and between the film layer where the first floating electrodes are located and the film layer where the pixel electrodes are located, and a third overlapping area exists between the vertical projection of the third floating electrodes on the substrate and the vertical projection of the pixel electrodes on the substrate.
In a third aspect, an embodiment of the present invention provides another display panel, including a display area and a non-display area surrounding the display area, further including:
a substrate base plate;
a plurality of scanning lines and a plurality of data lines formed on the substrate, the plurality of scanning lines and the plurality of data lines are insulated and crossed to define a plurality of pixel units positioned in the display area and virtual pixel units positioned in the non-display area; the pixel unit comprises a first driving circuit and a pixel electrode which are sequentially formed on the substrate, the first driving circuit comprises a first drain electrode, and the first drain electrode is electrically connected with the pixel electrode; the dummy pixel unit comprises a second driving circuit formed on the substrate base plate, and the second driving electrode comprises a second drain electrode;
a plurality of first floating line floating electrodes formed between the substrate and a film layer where the pixel electrodes are located, the plurality of first floating line floating electrodes being arranged along the extending direction of the scanning lines, the first floating line floating electrodes being used for connecting a first drain electrode corresponding to the first driving circuit and a second drain electrode corresponding to the second driving circuit arranged in the same row as the first driving circuit when the first driving circuit is damaged;
the display panel further comprises a plurality of second floating electrodes and a plurality of third floating electrodes;
the second floating electrode is formed between the substrate and the film layer where the pixel electrode is located, and a first overlapping area exists between the vertical projection of the second floating electrode on the substrate and the vertical projection of the first floating electrode on the substrate; a second overlapping area exists between the vertical projection of the second floating electrode on the substrate and the vertical projection of the first drain electrode on the substrate; and the vertical projection of the second floating electrode on the substrate and the vertical projection of the pixel electrode on the substrate have no overlapping area; the second floating electrode is used for respectively connecting the first floating electrode and the first drain electrode corresponding to the first driving circuit when the first driving circuit is damaged;
the third floating electrode is formed between the film layer where the data line is located and the film layer where the pixel electrode is located, and between the film layer where the first floating electrode is located and the film layer where the pixel electrode is located, and a third overlapping area exists between a vertical projection of the third floating electrode on the substrate base plate and a vertical projection of the pixel electrode on the substrate base plate.
In a fourth aspect, an embodiment of the present invention further provides a display device, including the display panel described above.
In the display panel and the display device provided by the embodiment of the invention, the pixel unit comprises the first driving circuit and the pixel electrode, the dummy pixel unit comprises the second driving circuit, the first floating electrode is used for connecting the first drain electrode corresponding to the first driving circuit and the second drain electrode corresponding to the second driving circuit arranged in the same row with the first driving circuit when the first driving circuit is damaged, the second floating electrode is used for respectively connecting the first floating electrode corresponding to the first driving circuit and the first drain electrode when the first driving circuit is damaged, moreover, the vertical projection of the second floating electrode on the substrate and the processing projection of the first floating electrode and the first drain electrode on the substrate have an overlapping region, and the vertical projection of the pixel electrode on the substrate has no overlapping region, so when the electrical connection between the first floating electrode and the first drain electrode is realized through the second floating electrode, the pixel electrode can not be damaged, and the normal display of the display panel is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, a brief description is given below of the drawings used in describing the embodiments. It should be clear that the described figures are only views of some of the embodiments of the invention to be described, not all, and that for a person skilled in the art, other figures can be derived from these figures without inventive effort.
FIG. 1 is a schematic diagram of a display panel according to the prior art;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 3 is an enlarged partial schematic view of the area W in FIG. 2;
FIG. 4 is a cross-sectional view of the display panel shown in FIG. 2 along the section line A-A';
FIG. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 7 is an enlarged partial schematic view of the area X in FIG. 6;
FIG. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be fully described by the detailed description with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, not all embodiments, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without inventive efforts fall within the scope of the present invention.
Fig. 1 is a schematic structural diagram of a display panel in the prior art, and as shown in fig. 1, the display panel may include a display area 11 and a non-display area 12 surrounding the display area 11;
the method can also comprise the following steps:
a base substrate 13;
a plurality of scanning lines 14 and a plurality of data lines 15 formed on the base substrate 13, the plurality of scanning lines 14 and the plurality of data lines 15 defining a plurality of pixel units 16 located in the display region 11 and a plurality of dummy pixel units 17 located in the non-display region 12 in an insulated and crossed manner; the pixel unit 16 includes a first driving circuit 161 and a pixel electrode 162 formed on the substrate 13, the first driving circuit 161 includes a first drain electrode 1611, and the first drain electrode 1611 is electrically connected to the pixel electrode 162; the dummy pixel unit 17 includes a second driving circuit 171 formed on the substrate, the second driving circuit 171 including a second drain 1711;
the plurality of first floating electrodes 18 are formed between the substrate 13 and the film layer where the pixel electrodes 162 are located, the plurality of first floating electrodes 18 are disposed along the extending direction of the scanning lines 14, and the first floating electrodes 18 are used for connecting the first drain 1611 corresponding to the first driving circuit 161 and the second drain 1711 corresponding to the second driving circuit 171 disposed in the same row as the first driving circuit 1611 when the first driving circuit 161 is damaged.
As shown in fig. 1, when the first driving circuit 161 of the pixel unit 16 is damaged, the first drain 1611 corresponding to the first driving circuit 161 and the second drain 1711 corresponding to the second driving circuit 171 arranged in the same row as the first driving circuit 161 are connected by the first floating electrode 18, and the pixel unit 16 is driven by the second driving circuit 171 instead of the first driving circuit 161 to perform light emitting display. Specifically, the first floating electrode 18 and the first drain electrode 1611 of the first driving circuit 161 may be electrically connected by laser welding. However, in the prior art, there is a design rule that there is an overlapping region between the vertical projection of the first floating electrode 18 on the substrate 13 and the vertical projection of the pixel electrode 162 on the substrate 13, or the interval between the vertical projection of the first floating electrode 18 on the substrate 13 and the vertical projection of the pixel electrode 162 on the substrate 13 is small, and fig. 1 only exemplifies that the interval between the vertical projection of the first floating electrode 18 on the substrate 13 and the vertical projection of the pixel electrode 162 on the substrate 13 is small. Therefore, when the first floating electrode 18 and the first drain 1611 of the first driving circuit 161 are connected by soldering, there is a risk that the pixel electrode 162 is damaged, which may affect normal display of the display panel.
It should be noted that, in the prior art, there is an overlapping region between the vertical projection of the first floating electrode 18 on the substrate 13 and the vertical projection of the pixel electrode 162 on the substrate 13, or the interval between the vertical projection of the first floating electrode 18 on the substrate 13 and the vertical projection of the pixel electrode 162 on the substrate 13 is small, where the pixel electrode 162 refers to the pixel electrode 162 in the pixel unit 16 adjacent to the first floating electrode 18 and located on the side of the first floating electrode 18 away from the pixel unit 16 to be repaired, but not to the pixel electrode 162 in the pixel unit 16 to be repaired.
Based on the above technical problem, an embodiment of the present invention provides a display panel, including a display area and a non-display area surrounding the display area, further including: a substrate base plate; a plurality of scanning lines and a plurality of data lines formed on the substrate, the plurality of scanning lines and the plurality of data lines are insulated and crossed to define a plurality of pixel units positioned in the display area and virtual pixel units positioned in the non-display area; the pixel unit comprises a first driving circuit and a pixel electrode which are sequentially formed on the substrate, the first driving circuit comprises a first drain electrode, and the first drain electrode is electrically connected with the pixel electrode; the dummy pixel unit includes a second driving circuit formed on the substrate, and the second driving electrode includes a second drain electrode; the first floating electrodes are formed between the substrate and the film layer where the pixel electrodes are located and arranged along the extension direction of the scanning lines, and the first floating electrodes are used for connecting a first drain electrode corresponding to the first driving circuit and a second drain electrode corresponding to a second driving circuit arranged in the same row as the first driving circuit when the first driving circuit is damaged; the display panel also comprises a plurality of second floating electrodes formed between the substrate and the film layer where the pixel electrodes are located, and a first overlapping area exists between the vertical projection of the second floating electrodes on the substrate and the vertical projection of the first floating electrodes on the substrate; a second overlapping area exists between the vertical projection of the second floating electrode on the substrate base plate and the vertical projection of the first drain electrode on the substrate base plate; the vertical projection of the second floating electrode on the substrate base plate and the vertical projection of the pixel electrode on the substrate base plate have no overlapping area; the second floating electrode is used for respectively connecting the first floating electrode and the first drain electrode corresponding to the first driving circuit when the first driving circuit is damaged. In the technical solution of the embodiment of the present invention, when the first driving circuit is damaged, the second floating electrode is additionally provided, and the first floating electrode and the first drain electrode of the first driving circuit are respectively connected through the second floating electrode, and a vertical projection of the second floating electrode on the substrate and a vertical projection of the first floating electrode on the substrate have a first overlapping region, a vertical projection of the second floating electrode on the substrate and a vertical projection of the first drain electrode on the substrate have a second overlapping region, and a vertical projection of the second floating electrode on the substrate and a vertical projection of the pixel electrode on the substrate have no overlapping region, so that the first floating electrode and the first drain electrode of the first driving circuit are respectively connected through the second floating electrode, which can ensure that the first floating electrode and the first drain electrode are electrically connected, and ensure that the pixel unit can be normally driven, meanwhile, the pixel electrode cannot be damaged, and normal display of the display panel can be ensured; meanwhile, the pixel electrodes positioned at two sides of the first floating electrode can not be short-circuited.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and as shown in fig. 2, the display panel according to the embodiment of the present invention may include a display area 21 and a non-display area 22 surrounding the display area 21, and further includes:
a base substrate 23;
a plurality of scanning lines 24 and a plurality of data lines 25 formed on the base substrate 23, the plurality of scanning lines 24 and the plurality of data lines 25 defining a plurality of pixel cells 26 located in the display region 21 and a plurality of dummy pixel cells 27 located in the non-display region 22 in an insulating and crossing manner; the pixel unit 26 includes a first driving circuit 261 and a pixel electrode 262 formed on the substrate 23, the first driving circuit 261 includes a first drain 2611, and the first drain 2611 is electrically connected to the pixel electrode 262; the dummy pixel unit 27 includes a second driving circuit 271 formed on the substrate base, the second driving circuit 271 including a second drain 2711;
a plurality of first floating electrodes 28 formed between the substrate 23 and the film layer where the pixel electrodes 262 are located, the plurality of first floating electrodes 28 being disposed along the extending direction of the scan lines 24, the first floating electrodes 28 being used to connect a first drain 2611 corresponding to the first driving circuit 261 and a second drain 2711 corresponding to the second driving circuit 271 disposed in the same row as the first driving circuit 2611 when the first driving circuit 261 is damaged;
the display panel may further include a plurality of second floating electrodes 29 formed between the substrate base plate 23 and the film layer where the pixel electrodes 262 are located, and there is a first overlapping area S1 between a vertical projection of the second floating electrodes 29 on the substrate base plate 23 and a vertical projection of the first floating electrodes 28 on the substrate base plate 23;
a second overlap region S2 exists between the vertical projection of the second floating electrode 29 on the substrate base plate 23 and the vertical projection of the first drain 2611 on the substrate base plate 23; and the vertical projection of the second floating electrode 29 on the substrate base plate 23 has no overlapping area with the vertical projection of the pixel electrode 262 on the substrate base plate 23;
the second floating electrode 29 is used to connect the first floating electrode 28 and the first drain 2611 corresponding to the first driving circuit 261, respectively, when the first driving circuit 261 is damaged.
Exemplarily, fig. 3 is a partial enlarged schematic view of the W region in fig. 2, and referring to fig. 2 and 3, there is a first overlapping region S1 between the vertical projection of the second floating electrode 29 on the substrate 23 and the vertical projection of the first floating electrode 28 on the substrate 23, there is a second overlapping region S2 between the vertical projection of the second floating electrode 29 on the substrate 23 and the vertical projection of the first drain 2611 on the substrate 23, and there is no overlapping region between the vertical projection of the second floating electrode 29 on the substrate 23 and the vertical projection of the pixel electrode 262 on the substrate 23, so that the first floating electrode 28 and the first drain 2611 of the first driving circuit 261 are respectively connected by the second floating electrode 29, which can ensure that the first floating electrode 28 is electrically connected with the first drain 2611, and the first floating electrode 28 is electrically connected with the second drain 2711 of the second driving circuit 271, thus, the first drain 2611 and the second drain 2711 are electrically connected, so that the second driving circuit 271 can drive the pixel unit 26 instead of the damaged first driving circuit 261, and the pixel unit 26 can be normally driven to normally perform light emitting display; meanwhile, the pixel electrode 262 on the side of the first floating electrode 28 away from the pixel unit to be repaired is not damaged, so that the pixel electrodes on the two sides of the first floating electrode 28 are not short-circuited, and the normal operation of the display panel is ensured. It should be noted that fig. 2 only exemplarily shows the pixel electrode 262 partially located on the side of the first floating electrode 28 away from the pixel unit to be repaired, for convenience of description.
It is understood that, when the first driving circuit 261 normally operates, both the first floating electrode 28 and the second floating electrode 29 are in a floating state, the first floating electrode 28 is not electrically connected to the first drain 2611 of the first driving circuit 261 and the second drain 2711 of the second driving circuit 271, and the first driving circuit 261 directly inputs a driving signal to the pixel electrode 262 to normally operate the pixel electrode 262. When the first driving circuit 261 is damaged, the first floating electrode 28 may be electrically connected to the first drain 2611 of the first driving circuit 261 and the second drain 2711 of the second driving circuit 271 through a laser welding process, the second driving circuit 271 may replace the damaged first driving circuit 261 to operate, and the second driving circuit 271 outputs a driving signal to the pixel electrode 262 corresponding to the damaged first driving circuit 261 to ensure that the pixel electrode 262 operates normally. Since the position where the first floating electrode 28 and the first drain 2611 need to be connected is close to the overlapping region or the position of the pixel electrode 262 on the side of the first floating electrode 28 away from the pixel unit 26 that needs to be repaired, in the embodiment of the present invention, the second floating electrode 29 is additionally disposed, and the second floating electrode 29 is electrically connected to the first floating electrode 28 and the first drain 2611 respectively, so as to prevent the pixel electrode 262 from being damaged when the first floating electrode 28 and the first drain 2611 are electrically connected.
It should be noted that the dummy pixel unit 27 in the embodiment of the present invention includes the second driving circuit 271 and does not include the pixel electrode, as shown in fig. 2.
Alternatively, with continued reference to fig. 2, the second floating electrodes 29 may be disposed along the extending direction of the scan lines 24, and each second floating electrode 29 is disposed corresponding to the same row of pixel units 26. When the first driving circuit 261 corresponding to one pixel unit 26 in the same row of pixel units 26 is damaged, the second floating electrode 29 is electrically connected to the first floating electrode 28 and the first drain 2611 corresponding to the damaged first driving circuit 261, and the first drain 2611 and the second drain 2711 are electrically connected through the first floating electrode 28, so that the pixel units 26 can be driven normally; the second floating electrode 29 ensures that the pixel electrode 262 is not damaged when the first floating electrode 28 is electrically connected to the first drain 2611, and ensures that the pixel electrodes on both sides of the first floating electrode 28 are not shorted, thereby ensuring that the display panel works normally.
Alternatively, as shown with continued reference to fig. 3, the perpendicular projections of the first overlap region S1 and the second overlap region S2 on the substrate base 23 do not overlap with the perpendicular projection of the pixel electrode 262 on the substrate base 23. Thus, when the first floating electrode 28 and the first drain 2611 are connected through the second floating electrode 29, the pixel electrode 262 is not damaged, and the normal operation of the display panel is not affected.
Optionally, when the first driving circuit 261 normally operates, the first floating electrode 28 and the second floating electrode 29 are both in a floating state, the first floating electrode 28 is not electrically connected to the first drain electrode 2611 and the second drain electrode 2711, and the second floating electrode 29 is not electrically connected to the first floating electrode 28 and the first drain electrode 2611, only when the first driving circuit 261 is damaged, the first floating electrode 28 is electrically connected to the first drain electrode 2611 and the second drain electrode 2711 through a laser welding process, and the second floating electrode 29 is electrically connected to the first floating electrode 28 and the first drain electrode 2611 through a laser welding process, so that in a film layer arrangement relationship of the display panel, the first floating electrode 28, the first drain electrode 2611 and the second drain electrode 2711 are not located in the same film layer, and the second floating electrode 29, the first floating electrode 28 and the first drain electrode 2611 are not located in the same film layer. Alternatively, the second floating electrode 29 may be located on the side of the first floating electrode 28 and the first drain 2611 near the substrate 23, or the second floating electrode 29 may be located between the first floating electrode 28 and the first drain 2611, or the second floating electrode 29 may also be located on the side of the first floating electrode 28 and the first drain 2611 near the pixel electrode 262. Considering the fabrication process of the conventional display panel, the first floating electrode 28 may be disposed at the same layer as the scan line 24, or the second floating electrode 29 may be disposed at the same layer as the scan line 24. Therefore, the preparation process of the first floating electrode 28 or the second floating electrode 29 is matched with the preparation process of the existing display panel, the preparation process of the first floating electrode 28 or the second floating electrode 29 is simple, the arrangement relation of the display panel film layers is simple, and the design requirement of the display thin display panel is easy to display.
Optionally, the first driving circuit 261 provided in the embodiment of the present invention may further include a storage capacitor 263, where the storage capacitor 263 may include a first capacitor substrate 2631 and a second capacitor substrate 2632; the first floating electrode 28 and the first capacitor substrate 2631 or the second capacitor substrate 2632 may be disposed on the same layer, so that the preparation process of the first floating electrode 28 may be matched with the preparation process of the existing display panel, and the preparation process of the first floating electrode 28 is simple, the film layer of the display panel is simple, and the design requirement of the thin display panel is easy to display.
Fig. 4 is a schematic cross-sectional view of the display panel shown in fig. 2 along a sectional line a-a', and fig. 2 is illustrated by only disposing the first floating electrode 28 and the first capacitor substrate 2631 at the same layer, and disposing the second floating electrode 29 and the scan line 24 at the same layer. In the first driving circuit 261, the scanning lines 24 are connected to the gates of the thin film transistors and are provided in the same layer, and the data lines 25 are connected to the sources of the thin film transistors and are provided in the same layer, so that the scanning lines 24 are shown by the gates of the thin film transistors and the data lines 25 are shown by the sources in fig. 4. As shown in fig. 4, the first floating electrode 28 and the first capacitor substrate 2631 are disposed in the same layer, the second floating electrode 29 and the scan line 24 are disposed in the same layer, the display panel film layer is simply disposed, and the first floating electrode 28 and the second floating electrode 29 are ensured to be simple in preparation process.
Fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and as shown in fig. 5, the second floating electrode 29 may include a plurality of independently disposed second sub floating electrodes 291, where each second sub floating electrode 291 is disposed corresponding to one pixel unit 26. As shown in fig. 4, each second sub-floating electrode 291 is disposed corresponding to one pixel unit 26, when the first driving circuit 261 of a certain pixel unit 26 is damaged, only the second sub-floating electrode 291 corresponding to the pixel unit 26 needs to be disposed to be electrically connected to the first sub-floating electrode 28 and the first drain 2611 of the first driving circuit 261, respectively, the second sub-floating electrode 291 is disposed in a simple manner, and at the same time, the second sub-floating electrode 291 has a small coverage area, occupies a small display area, and does not affect the display aperture ratio of the display panel.
Optionally, with continuing reference to fig. 2, the display panel according to the embodiment of the present invention may further include a plurality of fourth floating electrodes 31 formed between the substrate 23 and the film layer where the pixel electrodes 262 are located, where the fourth floating electrodes 31 are disposed along the extending direction of the scan lines 24, and are used to connect the data lines 25 corresponding to the first driving circuits 261 and the data lines 25 corresponding to the second driving circuits 271 disposed in the same row as the first driving circuits 261 when the first driving circuits 261 are damaged.
For example, when the first driving circuit 261 is damaged, the first floating electrode 28 is required to be connected to the first drain 2611 of the first driving circuit 261 and the second drain 2711 of the second driving circuit 271 arranged in the same row as the first driving circuit 261, the pixel unit 26 is driven by using the second driving circuit 271, and the data line 25 corresponding to the damaged first driving circuit 261 and the data line 25 corresponding to the second driving circuit 271 are also required to transmit the data signal output from the first driving circuit 261 to the pixel electrode 262 via the fourth floating electrode 31 and the second driving circuit 271 in sequence, so as to ensure that the data signal received by the pixel electrode 262 is the same as the data signal received by the other pixel electrodes 262 arranged in the same column as the data signal, and ensure that the display panel is normally displayed.
Alternatively, the fourth floating electrode 31 may be disposed on the same layer as the first floating electrode 28, for example, on the same layer as the scan line 24, or on the same layer as one of the capacitor substrates of the storage capacitor 263, which is not limited in this embodiment of the present invention.
Optionally, the material of the second floating electrode 29 may be a metal material, and when the second floating electrode 29, the first floating electrode 28 and the first drain 2611 are connected by a laser welding process, it may be ensured that the connection relationship between the second floating electrode 29 and the first floating electrode 28 and the first drain 2611 is firm.
Fig. 6 is a schematic structural diagram of another display panel provided in an embodiment of the present invention, and as shown in fig. 6, the display panel provided in the embodiment of the present invention may include a display area 21 and a non-display area 22 surrounding the display area 21, and further includes:
a base substrate 23;
a plurality of scanning lines 24 and a plurality of data lines 25 formed on the base substrate 23, the plurality of scanning lines 24 and the plurality of data lines 25 defining a plurality of pixel cells 26 located in the display region 21 and a plurality of dummy pixel cells 27 located in the non-display region 22 in an insulating and crossing manner; the pixel unit 26 includes a first driving circuit 261 and a pixel electrode 262 formed on the substrate 23, the first driving circuit 261 includes a first drain 2611, and the first drain 2611 is electrically connected to the pixel electrode 262; the dummy pixel unit 27 includes a second driving circuit 271 formed on the substrate base, the second driving circuit 271 including a second drain 2711;
a plurality of first floating electrodes 28 formed between the substrate 23 and the film layer where the pixel electrodes 262 are located, the plurality of first floating electrodes 28 being disposed along the extending direction of the scan lines 24, the first floating electrodes 28 being used to connect a first drain 2611 corresponding to the first driving circuit 261 and a second drain 2711 corresponding to the second driving circuit 271 disposed in the same row as the first driving circuit 2611 when the first driving circuit 261 is damaged;
the display panel may further include a plurality of third floating electrodes 30, the third floating electrodes 30 are formed between the film layer where the data lines 25 are located and the film layer where the pixel electrodes 262 are located, and between the film layer where the first floating electrodes 28 are located and the film layer where the pixel electrodes 262 are located, and there is a third overlapping area S3 between a vertical projection of the third floating electrodes 30 on the substrate 23 and a vertical projection of the pixel electrodes 262 on the substrate 23.
Exemplarily, fig. 7 is a partially enlarged schematic diagram of the X region in fig. 6, and referring to fig. 6 and 7, when the first driving circuit 261 is damaged, the first floating electrode 28 and the first drain 2611 are electrically connected by laser welding in the fourth overlapping region S4, there may or may not be an overlapping region between a vertical projection of the third floating electrode 30 on the substrate base 23 and a vertical projection of the fourth overlapping region S4 on the substrate base 23, and fig. 6 and 7 are only illustrated by taking as an example that there is no overlapping region between a vertical projection of the third floating electrode 30 on the substrate base 23 and a vertical projection of the fourth overlapping region S4 on the substrate base 23. Since the third floating electrode 30 is formed between the film where the data line 25 is located and the film where the pixel electrode 262 is located, and between the film where the first floating electrode 28 is located and the film where the pixel electrode 262 is located, and there is a third overlapping region S3 between the vertical projection of the third floating electrode 30 on the substrate 23 and the vertical projection of the pixel electrode 262 on the substrate 23, when the first floating electrode 28 and the first drain 2611 are laser-welded in the fourth overlapping region S4, the third floating electrode 30 can serve as a protective layer for the pixel electrode 262, so as to protect the pixel electrode 262 from being damaged by laser during laser welding of the first floating electrode 28 and the first drain 2611, thereby ensuring that the pixel electrode 262 is not damaged by laser or increasing the difficulty of the laser damaging the pixel electrode 262. Thus, the first floating electrode 28 is electrically connected to the first drain 2611, and the first floating electrode 28 is electrically connected to the second drain 2711 of the second driving circuit 271, so that the first drain 2611 and the second drain 2711 can be electrically connected when the first driving circuit 261 is damaged, the second driving circuit 271 can drive the pixel unit 26 instead of the damaged first driving circuit 261, and the pixel unit 26 can be driven normally, and can perform light emitting display normally; meanwhile, the pixel electrode 262 on the side of the first floating electrode 28 away from the pixel unit to be repaired is not damaged, so that the pixel electrodes on the two sides of the first floating electrode 28 are not short-circuited, and the normal operation of the display panel is ensured.
Alternatively, with continued reference to fig. 6, the third floating electrodes 30 may be disposed along the extending direction of the scan lines 24, and each third floating electrode 30 is disposed corresponding to the same row of pixel units 26. When the first driving circuit 261 corresponding to one pixel unit 26 in the same row of pixel units 26 is damaged, the third floating electrode 30 is electrically connected to the first floating electrode 28 and the first drain 2611 corresponding to the damaged first driving circuit 261, and the first drain 2611 and the second drain 2711 are electrically connected through the first floating electrode 28, so that the pixel units 26 can be driven normally; the third floating electrode 30 is used as a protective layer of the pixel electrode 262, so that the pixel electrode 262 is not damaged when the first floating electrode 28 is electrically connected with the first drain 2611, or the difficulty degree of damaging the pixel electrode 262 is increased, the pixel electrodes on two sides of the first floating electrode 28 are not short-circuited, and the normal operation of the display panel is ensured.
Fig. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and as shown in fig. 8, the third floating electrode 30 may include a plurality of independently disposed third sub-floating electrodes 301, where each third sub-floating electrode 301 is disposed corresponding to one pixel unit 26. As shown in fig. 8, each third sub-floating electrode 301 is disposed corresponding to one pixel unit 26, when the first driving circuit 261 of a certain pixel unit 26 is damaged, only the third sub-floating electrode 301 corresponding to the pixel unit 26 needs to be disposed to be electrically connected to the first sub-floating electrode 28 and the first drain 2611 of the first driving circuit 261, respectively, the third sub-floating electrode 301 is disposed in a simple manner, and meanwhile, the coverage area of the third sub-floating electrode 301 is small, so that a small display area is occupied, and the display aperture ratio of the display panel is not affected.
Optionally, with continuing reference to fig. 6 and fig. 8, the display panel according to the embodiment of the present invention may further include a plurality of fourth floating electrodes 31 formed between the substrate 23 and the film layer where the pixel electrodes 262 are located, where the fourth floating electrodes 31 are disposed along the extending direction of the scan lines 24, and are used to connect the data lines 25 corresponding to the first driving circuits 261 and the data lines 25 corresponding to the second driving circuits 271 disposed in the same row as the first driving circuits 261 when the first driving circuits 261 are damaged.
For example, when the first driving circuit 261 is damaged, the first floating electrode 28 is required to be connected to the first drain 2611 of the first driving circuit 261 and the second drain 2711 of the second driving circuit 271 arranged in the same row as the first driving circuit 261, the pixel unit 26 is driven by using the second driving circuit 271, and the data line 25 corresponding to the damaged first driving circuit 261 and the data line 25 corresponding to the second driving circuit 271 are also required to transmit the data signal output from the first driving circuit 261 to the pixel electrode 262 via the fourth floating electrode 31 and the second driving circuit 271 in sequence, so as to ensure that the data signal received by the pixel electrode 262 is the same as the data signal received by the other pixel electrodes 262 arranged in the same column as the data signal, and ensure that the display panel is normally displayed.
Optionally, the fourth floating electrode 31 may be disposed on the same layer as the third floating electrode 30, or the fourth floating electrode 30 may be disposed on the same layer as the scan line 24, or may be disposed on the same layer as one of the capacitor substrates of the storage capacitor 263, which is not limited in this embodiment of the present invention.
Alternatively, the material of the third floating electrode 30 may be a metal material, and the third floating electrode 30 serves as a protective layer for the pixel electrode, so as to protect the pixel electrode 262 from laser damage or increase the difficulty level of the pixel electrode from laser damage.
Fig. 9 is a schematic structural diagram of another display panel provided in an embodiment of the present invention, and as shown in fig. 9, the display panel provided in the embodiment of the present invention may include a display area 21 and a non-display area 22 surrounding the display area 21, and further includes:
a base substrate 23;
a plurality of scanning lines 24 and a plurality of data lines 25 formed on the base substrate 23, the plurality of scanning lines 24 and the plurality of data lines 25 defining a plurality of pixel cells 26 located in the display region 21 and a plurality of dummy pixel cells 27 located in the non-display region 22 in an insulating and crossing manner; the pixel unit 26 includes a first driving circuit 261 and a pixel electrode 262 formed on the substrate 23, the first driving circuit 261 includes a first drain 2611, and the first drain 2611 is electrically connected to the pixel electrode 262; the dummy pixel unit 27 includes a second driving circuit 271 formed on the substrate base, the second driving circuit 271 including a second drain 2711;
a plurality of first floating electrodes 28 formed between the substrate 23 and the film layer where the pixel electrodes 262 are located, the plurality of first floating electrodes 28 being disposed along the extending direction of the scan lines 24, the first floating electrodes 28 being used to connect a first drain 2611 corresponding to the first driving circuit 261 and a second drain 2711 corresponding to the second driving circuit 271 disposed in the same row as the first driving circuit 2611 when the first driving circuit 261 is damaged;
the display panel further includes a plurality of second floating electrodes 29 and a plurality of third floating electrodes 30;
the second floating electrode 29 is formed between the substrate base plate 23 and the film layer where the pixel electrode 262 is located, and there is a first overlapping area S1 between the vertical projection of the second floating electrode 29 on the substrate base plate 23 and the vertical projection of the first floating electrode 28 on the substrate base plate 23; a second overlap region S2 exists between the vertical projection of the second floating electrode 29 on the substrate base plate 23 and the vertical projection of the first drain 2611 on the substrate base plate 23; and the vertical projection of the second floating electrode 29 on the substrate base plate 23 has no overlapping area with the vertical projection of the pixel electrode 262 on the substrate base plate 23; the second floating electrode 29 is used for respectively connecting the first floating electrode 28 and the first drain 2611 corresponding to the first driving circuit 261 when the first driving circuit 261 is damaged;
the third floating electrode 30 is formed between the film layer where the data line 25 is located and the film layer where the pixel electrode 262 is located, and between the film layer where the first floating electrode 28 is located and the film layer where the pixel electrode 262 is located, and there is a third overlapping area S3 between a vertical projection of the third floating electrode 30 on the substrate 23 and a vertical projection of the pixel electrode 262 on the substrate 23.
Illustratively, referring to fig. 9, the vertical projection of the second floating electrode 29 on the substrate 23 and the vertical projection of the first floating electrode 28 on the substrate 23 have a first overlapping region S1, the vertical projection of the second floating electrode 29 on the substrate 23 and the vertical projection of the first drain 2611 on the substrate 23 have a second overlapping region S2, and the vertical projection of the second floating electrode 29 on the substrate 23 and the vertical projection of the pixel electrode 262 on the substrate 23 have no overlapping region, so that the first floating electrode 28 and the first drain 2611 of the first driving circuit 261 are respectively connected by the second floating electrode 29, thereby ensuring the electrical connection between the first floating electrode 28 and the first drain 2611, and the first floating electrode 28 is electrically connected to the second drain 2711 of the second driving circuit 271, so as to realize the electrical connection between the first drain 2611 and the second drain 2711, ensuring that the second driving circuit 271 can drive the pixel unit 26 in place of the damaged first driving circuit 261, the pixel unit 26 can be normally driven, and light emitting display can be normally performed; meanwhile, the pixel electrode on one side of the first floating electrode 28, which is far away from the pixel unit to be repaired, is not damaged, so that the pixel electrodes on two sides of the first floating electrode 28 are not short-circuited, and the normal operation of the display panel is ensured. Meanwhile, since the third floating electrode 30 is formed between the film where the data line 25 is located and the film where the pixel electrode 262 is located, and between the film where the first floating electrode 28 is located and the film where the pixel electrode 262 is located, and there is a third overlapping region S3 between the vertical projection of the third floating electrode 30 on the substrate 23 and the vertical projection of the pixel electrode 262 on the substrate 23, when the first floating electrode 28 and the first drain 2611 are subjected to laser welding, the third floating electrode 30 can serve as a protective layer for the pixel electrode 262, so as to protect the pixel electrode 262 from being damaged by laser light generated when the first floating electrode 28 and the first drain 2611 are subjected to laser welding, thereby ensuring that the pixel electrode 262 is not damaged by laser light or increasing the difficulty of damaging the pixel electrode 262 by laser light. Thus, under the combined action of the second floating electrode 29 and the third floating electrode 30, it is fully ensured that the pixel electrode located at the side of the first floating electrode 28 far away from the pixel unit to be repaired is not damaged when the first floating electrode 28 is electrically connected with the first drain 2611, and that the pixel electrodes located at the two sides of the first floating electrode 28 are not shorted, thereby ensuring that the display panel normally operates.
Optionally, with continuing reference to fig. 9, the display panel according to the embodiment of the present invention may further include a plurality of fourth floating electrodes 31 formed between the substrate 23 and the film layer where the pixel electrodes 262 are located, where the fourth floating electrodes 31 are disposed along the extending direction of the scan lines 24, and are used to connect the data lines 25 corresponding to the first driving circuits 261 and the data lines 25 corresponding to the second driving circuits 271 disposed in the same row as the first driving circuits 261 when the first driving circuits 261 are damaged.
For example, when the first driving circuit 261 is damaged, the first floating electrode 28 is required to be connected to the first drain 2611 of the first driving circuit 261 and the second drain 2711 of the second driving circuit 271 arranged in the same row as the first driving circuit 261, the pixel unit 26 is driven by using the second driving circuit 271, and the data line 25 corresponding to the damaged first driving circuit 261 and the data line 25 corresponding to the second driving circuit 271 are also required to transmit the data signal output from the first driving circuit 261 to the pixel electrode 262 via the fourth floating electrode 31 and the second driving circuit 271 in sequence, so as to ensure that the data signal received by the pixel electrode 262 is the same as the data signal received by the other pixel electrodes 262 arranged in the same column as the data signal, and ensure that the display panel is normally displayed.
Alternatively, the fourth floating electrode 31 may be disposed in the same layer as the second floating electrode 29, or may also be disposed in the same layer as the third floating electrode 30, which is not limited in this embodiment of the present invention.
Alternatively, the material of the second floating electrode 29 and the third floating electrode 30 may be a metal material.
Alternatively, the display panel according to the embodiment of the present invention may be an organic light emitting display panel, and the pixel electrode 262 may be an anode electrode.
Fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention, and referring to fig. 10, the display device 100 may include the display panel 101 according to any embodiment of the present invention. The display device 100 may be a mobile phone as shown in fig. 10, or may be a computer, a television, an intelligent wearable display device, and the like, which is not particularly limited in this embodiment of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (18)
1. A display panel including a display area and a non-display area surrounding the display area, further comprising:
a substrate base plate;
a plurality of scanning lines and a plurality of data lines formed on the substrate, the plurality of scanning lines and the plurality of data lines are insulated and crossed to define a plurality of pixel units positioned in the display area and virtual pixel units positioned in the non-display area; the pixel unit comprises a first driving circuit and a pixel electrode which are sequentially formed on the substrate, the first driving circuit comprises a first drain electrode, and the first drain electrode is electrically connected with the pixel electrode; the dummy pixel unit includes a second driving circuit formed on the substrate base, the second driving circuit including a second drain electrode;
the first floating electrodes are formed between the substrate and the film layer where the pixel electrodes are located, the first floating electrodes are arranged along the extension direction of the scanning lines, and the first floating electrodes are used for connecting a first drain electrode corresponding to the first driving circuit and a second drain electrode corresponding to the second driving circuit arranged in the same row as the first driving circuit when the first driving circuit is damaged;
the display panel also comprises a plurality of second floating electrodes formed between the substrate and the film layer where the pixel electrodes are located, and a first overlapping area exists between the vertical projection of the second floating electrodes on the substrate and the vertical projection of the first floating electrodes on the substrate;
a second overlapping area exists between the vertical projection of the second floating electrode on the substrate and the vertical projection of the first drain electrode on the substrate; and the vertical projection of the second floating electrode on the substrate and the vertical projection of the pixel electrode on the substrate have no overlapping area;
the second floating electrode is used for respectively connecting the first floating electrode and the first drain electrode corresponding to the first driving circuit when the first driving circuit is damaged;
the pixel electrode in the region where the vertical projection of the second floating electrode on the substrate does not overlap the vertical projection of the pixel electrode on the substrate is specifically a pixel electrode in a pixel unit adjacent to the first floating electrode and located on one side of the first floating electrode away from the pixel unit to be repaired.
2. The display panel according to claim 1, wherein the second floating electrodes are disposed along an extending direction of the scan lines, and each of the second floating electrodes is disposed corresponding to a same row of the pixel units.
3. The display panel according to claim 1, wherein the second floating electrode comprises a plurality of independently disposed second sub-floating electrodes, and each of the second sub-floating electrodes is disposed corresponding to one of the pixel units.
4. The display panel according to claim 1, wherein a perpendicular projection of the first overlap region and the second overlap region on the substrate base plate does not overlap a perpendicular projection of the pixel electrode on the substrate base plate.
5. The display panel according to claim 1, wherein the second floating electrode is located on one side of the film layer where the first floating electrode and the data line are located, which is close to the substrate; or the second floating electrode is positioned between the first floating electrode and the film layer where the data line is positioned; or the second floating electrode is positioned on one side of the film layer where the first floating electrode and the data line are positioned, which is close to the pixel electrode.
6. The display panel according to claim 5, wherein the second floating electrode is disposed in the same layer as the scan line.
7. The display panel according to claim 1, wherein a material of the second floating electrode is a metal material.
8. The display panel according to claim 1, wherein the first floating electrode is disposed in the same layer as the scan line.
9. The display panel according to claim 1, wherein the first driver circuit further comprises a storage capacitor, the storage capacitor comprising a first capacitor substrate and a second capacitor substrate;
the first floating electrode and the first capacitor substrate or the second capacitor substrate are arranged on the same layer.
10. The display panel according to claim 1, wherein the display panel is an organic light emitting display panel, and the pixel electrode is an anode electrode.
11. A display panel including a display area and a non-display area surrounding the display area, further comprising:
a substrate base plate;
a plurality of scanning lines and a plurality of data lines formed on the substrate, the plurality of scanning lines and the plurality of data lines are insulated and crossed to define a plurality of pixel units positioned in the display area and virtual pixel units positioned in the non-display area; the pixel unit comprises a first driving circuit and a pixel electrode which are sequentially formed on the substrate, the first driving circuit comprises a first drain electrode, and the first drain electrode is electrically connected with the pixel electrode; the dummy pixel unit includes a second driving circuit formed on the substrate base, the second driving circuit including a second drain electrode;
the first floating electrodes are formed between the substrate and the film layer where the pixel electrodes are located, the first floating electrodes are arranged along the extension direction of the scanning lines, and the first floating electrodes are used for connecting a first drain electrode corresponding to the first driving circuit and a second drain electrode corresponding to the second driving circuit arranged in the same row as the first driving circuit when the first driving circuit is damaged;
the display panel further comprises a plurality of third floating electrodes, the third floating electrodes are formed between the film layer where the data lines are located and the film layer where the pixel electrodes are located, and between the film layer where the first floating electrodes are located and the film layer where the pixel electrodes are located, and a third overlapping area exists between the vertical projection of the third floating electrodes on the substrate and the vertical projection of the pixel electrodes on the substrate;
the pixel electrode in the third overlapping area where the vertical projection of the third floating electrode on the substrate and the vertical projection of the pixel electrode on the substrate exist is specifically the pixel electrode in the pixel unit adjacent to the first floating electrode and located on one side of the first floating electrode away from the pixel unit to be repaired.
12. The display panel according to claim 11, wherein the third floating electrodes are disposed along an extending direction of the scan lines, and each of the third floating electrodes is disposed corresponding to a same row of the pixel units.
13. The display panel according to claim 11, wherein the third floating electrode comprises a plurality of independently disposed third sub-floating electrodes, and each of the third sub-floating electrodes is disposed corresponding to one pixel unit.
14. The display panel according to claim 11, wherein a material of the third floating electrode is a metal material.
15. A display panel including a display area and a non-display area surrounding the display area, further comprising:
a substrate base plate;
a plurality of scanning lines and a plurality of data lines formed on the substrate, the plurality of scanning lines and the plurality of data lines are insulated and crossed to define a plurality of pixel units positioned in the display area and virtual pixel units positioned in the non-display area; the pixel unit comprises a first driving circuit and a pixel electrode which are sequentially formed on the substrate, the first driving circuit comprises a first drain electrode, and the first drain electrode is electrically connected with the pixel electrode; the dummy pixel unit includes a second driving circuit formed on the substrate base, the second driving circuit including a second drain electrode;
the first floating electrodes are formed between the substrate and the film layer where the pixel electrodes are located, the first floating electrodes are arranged along the extension direction of the scanning lines, and the first floating electrodes are used for connecting a first drain electrode corresponding to the first driving circuit and a second drain electrode corresponding to the second driving circuit arranged in the same row as the first driving circuit when the first driving circuit is damaged;
the display panel further comprises a plurality of second floating electrodes and a plurality of third floating electrodes;
the second floating electrode is formed between the substrate and the film layer where the pixel electrode is located, and a first overlapping area exists between the vertical projection of the second floating electrode on the substrate and the vertical projection of the first floating electrode on the substrate; a second overlapping area exists between the vertical projection of the second floating electrode on the substrate and the vertical projection of the first drain electrode on the substrate; and the vertical projection of the second floating electrode on the substrate and the vertical projection of the pixel electrode on the substrate have no overlapping area; the second floating electrode is used for respectively connecting the first floating electrode and the first drain electrode corresponding to the first driving circuit when the first driving circuit is damaged;
the third floating electrode is formed between the film layer where the data line is located and the film layer where the pixel electrode is located, and between the film layer where the first floating electrode is located and the film layer where the pixel electrode is located, and a third overlapping area exists between the vertical projection of the third floating electrode on the substrate and the vertical projection of the pixel electrode on the substrate;
the pixel electrode in the region where the vertical projection of the second floating electrode on the substrate does not overlap the vertical projection of the pixel electrode on the substrate is specifically a pixel electrode in a pixel unit adjacent to the first floating electrode and located on one side of the first floating electrode away from the pixel unit to be repaired.
16. The display panel according to any one of claims 1 to 7 and 11 to 15, further comprising a plurality of fourth floating electrodes formed between the substrate and the film layer where the pixel electrodes are located, wherein the fourth floating electrodes are disposed along an extending direction of the scan lines and are configured to connect the data lines corresponding to the first driving circuits and the data lines corresponding to the second driving circuits disposed in the same row as the first driving circuits when the first driving circuits are damaged.
17. The display panel according to claim 16, wherein the fourth floating electrode is disposed in the same layer as the first floating electrode.
18. A display device characterized by comprising the display panel according to any one of claims 1 to 17.
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| CN104183621A (en) * | 2013-05-22 | 2014-12-03 | 三星显示有限公司 | Organic light-emitting display apparatus and method of repairing the same |
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| KR20070117738A (en) * | 2006-06-09 | 2007-12-13 | 삼성전자주식회사 | Repair method of display plate and display plate repaired by the method |
| EP2304776A1 (en) * | 2008-07-16 | 2011-04-06 | Sionyx, Inc. | Thin sacrificial masking films for protecting semiconductors from pulsed laser process |
| KR101956736B1 (en) * | 2012-03-22 | 2019-03-11 | 엘지디스플레이 주식회사 | Flat Panel Display Device and Method of fabricating thereof |
| KR20150142820A (en) * | 2014-06-11 | 2015-12-23 | 삼성디스플레이 주식회사 | Pixel, display device comprising the same and driving method thereof |
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| CN101750810A (en) * | 2008-12-19 | 2010-06-23 | 瀚宇彩晶股份有限公司 | Repair structure of liquid crystal display |
| CN104183621A (en) * | 2013-05-22 | 2014-12-03 | 三星显示有限公司 | Organic light-emitting display apparatus and method of repairing the same |
| CN104637442A (en) * | 2013-11-08 | 2015-05-20 | 三星显示有限公司 | Organic light-emitting display apparatus, method of repairing the same, and method of driving the same |
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