Display panel

Abstract

The invention relates to a display panel, the display panel comprises a control circuit, a driving backboard, a normal display area and a backup display area, and the normal display area and the backup display area are arranged on the driving backboard; the normal display area comprises a normal pixel driving circuit and a plurality of normal display pixel devices; the backup display area comprises a backup pixel driving circuit and a plurality of backup display pixel devices; the area of the backup display area is the same as that of the normal display area. According to the display panel provided by the embodiment of the invention, the area of the backup display area is the same as that of the normal display area, so that various flight parameters which are the same as those in the normal display mode can be displayed in the backup display mode, and task execution and flight safety of a pilot are not influenced.

Description

Technical Field

[0001] The present application relates to the field of airborne display technology, and in particular to a display panel. Background Art

[0002] As the "eyes" of the pilot, the cockpit display device can receive key data from various aircraft systems and provide the pilot with comprehensive flight information. If an irreversible failure occurs in the display panel during flight, serious consequences will occur.

[0003] In order to avoid this situation, an independent dual-screen drive display mode is usually used in related technologies to divide the display panel into two half-screens. When the display panel works normally, all flight information is displayed on the entire screen. When one of the half-screens fails, the display panel performs backup display and displays some key flight information on the other half-screen. This display method will have a certain degree of impact on the pilot's operation and psychology, thereby affecting flight safety. Summary of the invention

[0004] In view of this, a display panel is proposed.

[0005] In the first aspect, an embodiment of the present application provides a display panel, which includes a control circuit, a driving backplane, a normal display area and a backup display area, wherein the normal display area and the backup display area are arranged on the driving backplane; the normal display area includes a normal pixel driving circuit and a plurality of normal display pixel devices; the backup display area includes a backup pixel driving circuit and a plurality of backup display pixel devices; the area of ​​the backup display area is the same as that of the normal display area; the control circuit is connected to the normal pixel driving circuit and the backup pixel driving circuit, and is used to send a first driving signal to the normal pixel driving circuit and a second driving signal to the backup pixel driving circuit; the normal pixel driving circuit is connected to the plurality of normal display pixel devices, and is used to drive the plurality of normal display pixel devices to display according to the first driving signal; the backup pixel driving circuit is connected to the plurality of backup display pixel devices, and is used to drive the plurality of backup display pixel devices to display according to the second driving signal.

[0006] In some possible implementations, the number of the normal display pixel devices is the same as the number of the backup display pixel devices; the normal display pixel devices correspond to the backup display pixel devices one-to-one; and each normal display pixel device is disposed adjacent to the corresponding backup display pixel device.

[0007] In some possible implementations, each normal display pixel device includes red, green and blue normal sub-display pixel devices; each backup display pixel device includes red, green and blue backup sub-display pixel devices.

[0008] In some possible implementations, for any normal display pixel device and the corresponding backup display pixel device, a normal sub-display pixel device and a backup sub-display pixel device of the same color are disposed adjacent to each other.

[0009] In some possible implementations, the adjacent arrangement is adjacent arrangement along a horizontal direction or adjacent arrangement along a vertical direction.

[0010] In some possible implementations, the relationship between a first projection of the normal display pixel device on the driving backplane and a second projection of the corresponding backup display pixel device on the driving backplane is any one of the following: the first projection completely overlaps with the second projection; the first projection partially overlaps with the second projection; the first projection does not overlap with the second projection at all.

[0011] In some possible implementations, the control circuit is used to: for any normal display pixel device, when the normal display pixel device fails, display is performed through a corresponding backup display pixel device.

[0012] In some possible implementations, the display mode of the display panel includes a normal display mode and a backup display mode, and the control circuit is used to: in the normal display mode, control the backup pixel driving circuit to be in a power-off state, and control the normal pixel driving circuit to be in a working state, so as to drive multiple normal display pixel devices in the normal display area to display; in the backup display mode, control the normal pixel driving circuit to be in a power-off state, and control the backup pixel driving circuit to be in a working state, so as to drive multiple backup display pixel devices in the backup display area to display.

[0013] In some possible implementations, the display panel includes a switching switch, and the switching switch is used to switch the display mode.

[0014] In some possible implementations, the display panel is any one of a liquid crystal display panel, a micro light emitting diode display panel, and a sub-millimeter light emitting diode backlight panel.

[0015] The display panel of the embodiment of the present application includes a control circuit, a driving backplane, a normal display area and a backup display area, and the area of ​​the backup display area is the same as that of the normal display area, so that in the backup display mode, the same flight parameters as in the normal display mode can be displayed without affecting the pilot's mission execution and flight safety.

[0016] These and other aspects of the present application will become more apparent from the following description of the embodiment(s). BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.

[0018] Figure 1 A block diagram of a display panel according to an embodiment of the present application is shown.

[0019] Figure 2 A schematic diagram showing a cross-sectional structure of a display panel according to an embodiment of the present application is shown.

[0020] Figure 3 A schematic diagram of the layout of a display pixel device in a display panel according to an embodiment of the present application is shown.

[0021] Figure 4 A schematic diagram of the layout of a display pixel device in a display panel according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0022] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0023] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0024] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0025] In order to solve the above technical problems, an embodiment of the present application provides a display panel, which includes a control circuit, a driving backplane, a normal display area and a backup display area, wherein the normal display area and the backup display area are arranged on the driving backplane; the normal display area includes a normal pixel driving circuit and a plurality of normal display pixel devices; the backup display area includes a backup pixel driving circuit and a plurality of backup display pixel devices; the area of ​​the backup display area is the same as that of the normal display area; the control circuit is connected to the normal pixel driving circuit and the backup pixel driving circuit, and is used to send a first driving signal to the normal pixel driving circuit and a second driving signal to the backup pixel driving circuit; the normal pixel driving circuit is connected to the plurality of normal display pixel devices, and is used to drive the plurality of normal display pixel devices to display according to the first driving signal; the backup pixel driving circuit is connected to the plurality of backup display pixel devices, and is used to drive the plurality of backup display pixel devices to display according to the second driving signal.

[0026] The display panel of the embodiment of the present application includes a control circuit, a driving backplane, a normal display area and a backup display area, and the area of ​​the backup display area is the same as that of the normal display area, so that in the backup display mode, the same flight parameters as in the normal display mode can be displayed without affecting the pilot's mission execution and flight safety.

[0027] Figure 1 FIG. 1 is a block diagram of a display panel according to an embodiment of the present application. Figure 1 As shown, the display panel 100 includes a control circuit 110, a driving backplane 120, a normal display area 130 and a backup display area 140. Both the normal display area 130 and the backup display area 140 are disposed on the driving backplane 120, and the area of ​​the backup display area 140 is the same as that of the normal display area 130.

[0028] The normal display area 130 includes a normal pixel driving circuit 131 and a plurality of normal display pixel devices 132. The control circuit 110 is connected to the normal pixel driving circuit 131, and the normal pixel driving circuit 131 is connected to the plurality of normal display pixel devices 132. The control circuit 110 sends a first driving signal (current signal or voltage signal) to the normal pixel driving circuit 131, and the normal pixel driving circuit 131 drives the plurality of normal display pixel devices 132 to display according to the received first driving signal (current signal or voltage signal). Among them, the normal display pixel device 132 can be a liquid crystal, a sub-millimeter light emitting diode (Min iLight Emitt ing Diode, Mini-led), a micro light emitting diode (Micro Light Emitt ing Diode, Micro-led), etc. This application does not limit the type of normal display pixel device.

[0029] The backup display area 140 includes a backup pixel driving circuit 141 and a plurality of backup display pixel devices 142. The control circuit 110 is connected to the backup pixel driving circuit 141, and the backup pixel driving circuit 141 is connected to the plurality of backup display pixel devices 142. The control circuit 110 sends a second driving signal (current signal or voltage signal) to the backup pixel driving circuit 141, and the backup pixel driving circuit 141 drives the plurality of backup display pixel devices 142 to display according to the received second driving signal (current signal or voltage signal). The second driving signal is the same as the first driving signal. The backup display pixel device 142 can be a liquid crystal, a sub-millimeter light emitting diode (Min i Light Emitting Diode, Mini-led), a micro light emitting diode (Micro Light Emitting Diode, Micro-led), etc. This application does not limit the type of backup display pixel device.

[0030] The display panel may be any one of a liquid crystal display panel, a micro-LED display panel, and a sub-millimeter LED backlight panel. The display panel may also be of other types, and those skilled in the art may set the specific type of the display panel according to actual conditions, and this application does not limit this.

[0031] Figure 2 FIG. 1 is a schematic diagram showing a cross-sectional structure of a display panel according to an embodiment of the present application. Figure 2 As shown, the display panel 20 includes a driving backplane 1 , a pixel driving circuit 2 , a plurality of normal display pixel devices 3 , a plurality of backup display pixel devices 6 , a flexible circuit board 4 and a control circuit 5 .

[0032] The pixel driving circuit 2 includes a normal pixel driving circuit and a backup pixel driving circuit. The pixel driving circuit 2 is located on the first surface of the driving backplane 1. The normal display pixel device 3 and the backup display pixel device 6 are located on the pixel driving circuit 2 away from the first surface of the driving backplane 1. The control circuit 5 is located on the second surface of the driving backplane 1 (the other surface opposite to the first surface). The control circuit 5 is connected to the pixel driving circuit 2 through the flexible circuit board 4.

[0033] In some possible implementations, the number of normal display pixel devices in the normal display area is the same as the number of backup display pixel devices in the backup display area. The normal display pixel devices correspond to the backup display pixel devices one by one. Each normal display pixel device is arranged adjacent to the corresponding backup display pixel device. In other words, each normal display pixel device has a backup pixel display device corresponding to it, and the two are arranged adjacent to each other. Among them, the adjacent arrangement can be arranged adjacently in the horizontal direction (i.e., adjacently in the left and right directions), or adjacently in the vertical direction (i.e., adjacently in the top and bottom directions).

[0034] By placing each normal display pixel device adjacent to its corresponding backup display pixel device, it is easy to realize the display switching between the normal display pixel device and its backup display pixel device. In addition, when the number of normal display pixel devices is the same as the number of backup display pixel devices, compared with a conventional display panel, the total number of pixels of the display panel of the embodiment of the present application is twice that of a conventional display panel, thereby greatly extending the service life of the display panel, reducing the frequency of repair and maintenance, and saving costs.

[0035] In some possible implementations, the control circuit of the display panel may be used to: for any normal display pixel device, when the normal display pixel device fails, display is performed through a corresponding backup display pixel device.

[0036] When the control circuit detects that one or more normal display pixel devices in the normal display area fail, for any failed normal display pixel device, the control circuit stops sending the first drive signal to the failed normal display pixel device, and switches to sending the second drive signal to the backup display pixel device corresponding to the failed normal display pixel device, where the second drive signal is the same as the first drive signal, so that backup display is performed through the backup display pixel device corresponding to the failed normal display pixel device, thereby realizing pixel-level backup of the display panel.

[0037] In some possible implementations, each normal display pixel device in the normal display area includes red, green and blue normal sub-display pixel devices. That is, each normal display pixel device includes three normal sub-display pixel devices, namely: a red normal sub-display pixel device, a green normal sub-display pixel device and a blue normal sub-display pixel device. Each backup display pixel device in the backup display area includes red, green and blue backup sub-display pixel devices. That is, each backup display pixel device includes three backup sub-display pixel devices, namely: a red backup sub-display pixel device, a green backup sub-display pixel device and a blue backup sub-display pixel device.

[0038] In some possible implementations, for any normal display pixel device and its corresponding backup display pixel device, a normal sub-display pixel device and a backup sub-display pixel device of the same color are arranged adjacent to each other. The adjacent arrangement may be arranged adjacently in the horizontal direction (i.e., adjacently in left and right), or adjacently in the vertical direction (i.e., adjacently in top and bottom).

[0039] For example, for any normal display pixel device A1 and its corresponding backup display pixel device A2, the red normal sub-display pixel device of the normal display pixel device A1 and the red backup sub-display pixel device of the backup display pixel device A2 can be arranged adjacent to each other on the left and right; the green normal sub-display pixel device of the normal display pixel device A1 and the green backup sub-display pixel device of the backup display pixel device A2 can be arranged adjacent to each other on the left and right; the blue normal sub-display pixel device of the normal display pixel device A1 and the blue backup sub-display pixel device of the backup display pixel device A2 can be arranged adjacent to each other on the left and right.

[0040] Figure 3 FIG. 1 shows a schematic diagram of the layout of a display pixel device in a display panel according to an embodiment of the present application. Figure 3 As shown, the display area of ​​the normal display area 8 and the backup display area 7 of the display panel are the same, the number of display pixel devices is the same, the size is the same, and the spacing is also the same. The normal display pixel devices in the normal display area 8 and the corresponding backup display pixel devices (located in the backup display area 7) are alternately arranged in the X-axis direction (the X-axis is the horizontal direction and the Y-axis is the vertical direction). Figure 3 The layout shown is a pixel-by-pixel backup.

[0041] The normal display area 8 includes two normal display pixel devices, the first normal display pixel device (located at the upper part of the normal display area 8) includes a red normal sub-display pixel device 31, a green normal sub-display pixel device 32 and a blue normal sub-display pixel device 33. The second normal display pixel device (located at the lower part of the normal display area 8) also includes a red normal sub-display pixel device, a green normal sub-display pixel device and a blue normal sub-display pixel device.

[0042] The backup display area 7 includes two backup display pixel devices, and the first backup display pixel device (located at the upper part of the backup display area 7) includes a red backup sub-display pixel device 61, a green backup sub-display pixel device 62, and a blue backup sub-display pixel device 63. The first backup display pixel device corresponds to the first normal display pixel device.

[0043] The second backup display pixel device (located at the lower part of the backup display area 7) also includes a red backup sub-display pixel device, a green backup sub-display pixel device and a blue backup sub-display pixel device. The second backup display pixel device corresponds to the second normal display pixel device.

[0044] The red normal sub-display pixel device, the green normal sub-display pixel device and the blue normal sub-display pixel device in the normal display area 8 receive the scan data (Vscan) 53 and the first drive signal (voltage data Vdata) 51 for display. The red backup sub-display pixel device, the green backup sub-display pixel device and the blue backup sub-display pixel device in the backup display area 7 receive the scan data (Vscan) 53 and the second drive signal (voltage data Vdata) 52 for display. The first drive signal 51 is the same as the second drive signal 52. The first drive signal 51 and the second drive signal 52 are located in the opposite direction of the Y axis of the drive backplane.

[0045] Figure 4 FIG. 1 shows a schematic diagram of the layout of a display pixel device in a display panel according to an embodiment of the present application. Figure 4 As shown, the display panel includes two normal display pixel devices and two backup display pixel devices. The first normal display pixel device includes a red normal sub-display pixel device 31, a green normal sub-display pixel device 32, and a blue normal sub-display pixel device 33. The second normal display pixel device (located below the first normal display pixel device) also includes a red normal sub-display pixel device, a green normal sub-display pixel device, and a blue normal sub-display pixel device.

[0046] The first backup display pixel device includes a red backup sub-display pixel device 61, a green backup sub-display pixel device 62, and a blue backup sub-display pixel device 63. The first backup display pixel device corresponds to the first normal display pixel device. The second backup display pixel device (located below the first backup display pixel device) also includes a red backup sub-display pixel device, a green backup sub-display pixel device, and a blue backup sub-display pixel device. The second backup display pixel device corresponds to the second normal display pixel device. The normal display pixel device and the backup display pixel device have the same number of sub-display pixel devices, the same size, and the same spacing.

[0047] The sub-display area 9 is a part of the normal display area, including the red normal sub-display pixel device 31 of the first normal display pixel device and the red normal sub-display pixel device of the second normal display pixel device. The sub-display area 10 is a part of the backup display area, including the red backup sub-display pixel device 61 of the first backup display pixel device and the red backup sub-display pixel device of the second backup display pixel device.

[0048] The red normal sub-display pixel device 31 of the first normal display pixel device and the red backup sub-display pixel device 61 of the first backup display pixel device are adjacently arranged in the X-axis direction (the X-axis is the horizontal direction and the Y-axis is the vertical direction). The green normal sub-display pixel device 32 of the first normal display pixel device and the green backup sub-display pixel device 62 of the first backup display pixel device are adjacently arranged in the X-axis direction. The blue normal sub-display pixel device 33 of the first normal display pixel device and the blue backup sub-display pixel device 63 of the first backup display pixel device are adjacently arranged in the X-axis direction. In other words, Figure 4 In the embodiment, for any normal display pixel device and the corresponding backup display pixel device, the normal sub-display pixel device and the backup sub-display pixel device of the same color are arranged adjacent to each other. Figure 4 The layout shown is a sub-pixel level backup method.

[0049] The red normal sub-display pixel device, the green normal sub-display pixel device and the blue normal sub-display pixel device in the normal display area receive the scan data (Vscan) 53 and the first drive signal (voltage data Vdata) 51 for display. The red backup sub-display pixel device, the green backup sub-display pixel device and the blue backup sub-display pixel device in the backup display area receive the scan data (Vscan) 53 and the second drive signal (voltage data Vdata) 52 for display. The first drive signal 51 is the same as the second drive signal 52. The first drive signal 51 and the second drive signal 52 are located in the opposite direction of the Y axis of the drive backplane.

[0050] It should be noted that the above Figure 3 and Figure 4 As an example, the layout of the display pixel devices in the display panel is exemplarily described. In practical applications, the layout of the display pixel devices can also be adjusted according to actual conditions, and this application does not limit this. Figure 3In the area where the first normal display pixel device (located at the upper part of the normal display area 8) and the first backup display pixel device (located at the upper part of the backup display area 7) are located, the positions of the sub-display pixel devices (red normal sub-display pixel device 31, green normal sub-display pixel device 32, blue normal sub-display pixel device 33, red backup sub-display pixel device 61, green backup sub-display pixel device 62 and blue backup sub-display pixel device 63) can be adjusted at will.

[0051] In some possible implementations, the relationship between a first projection of the normal display pixel device on the driving backplane and a second projection of the corresponding backup display pixel device on the driving backplane is any one of the following: the first projection completely overlaps with the second projection; the first projection partially overlaps with the second projection; the first projection does not overlap with the second projection at all.

[0052] The relationship between the first projection of the normal display pixel device on the driving backplane and the second projection of the corresponding backup display pixel device on the driving backplane can be that the first projection and the second projection completely overlap. In this case, the normal display pixel device and the corresponding backup display pixel device are stacked in the vertical direction so that the first projection and the second projection completely overlap.

[0053] For example, three normal sub-display pixel devices of a normal display pixel device may be arranged in a horizontal direction, and then three backup sub-display pixel devices of a backup display pixel device corresponding to the normal display pixel device may be stacked on the corresponding normal sub-display pixel device in the same color. In this way, the first projection and the second projection each occupy an area of ​​a normal display pixel device on the driving backplane, and the first projection and the second projection completely overlap.

[0054] For another example, three normal sub-display pixel devices of a normal display pixel device may be stacked in a vertical direction, and then three backup sub-display pixel devices of a backup display pixel device corresponding to the normal display pixel device may be stacked in a vertical direction on the normal display pixel device. In this way, the first projection and the second projection each occupy an area of ​​a normal sub-display pixel device on the driving backplane, and the first projection and the second projection completely overlap.

[0055] The relationship between the first projection of the normal display pixel device on the driving backplane and the second projection of the corresponding backup display pixel device on the driving backplane can be that the first projection partially overlaps with the second projection. In this case, the normal display pixel device and the corresponding backup display pixel device are partially stacked in the vertical direction, so that the first projection partially overlaps with the second projection.

[0056] For example, three normal sub-display pixel devices of a normal display pixel device may be arranged in a horizontal direction, and then two of the three backup sub-display pixel devices of a backup display pixel device corresponding to the normal display pixel device may be stacked on two normal sub-display pixel devices, and the other backup sub-display pixel device may be arranged in a horizontal direction. In this way, the first projection and the second projection both occupy an area of ​​a normal display pixel device on the driving backplane, but the first projection and the second projection overlap in areas where two display sub-pixel devices are located.

[0057] The relationship between the first projection of the normal display pixel device on the driving backplane and the second projection of the corresponding backup display pixel device on the driving backplane can be that the first projection and the second projection do not overlap at all. In this case, the three normal sub-display pixel devices of the normal display pixel device can be arranged on the driving backplane in the horizontal direction, and the three backup sub-display pixel devices of the backup display pixel device corresponding to the normal display pixel device can also be arranged in adjacent positions on the driving backplane in the horizontal direction, and there is no stacking between the two. The first projection and the second projection do not overlap at all. This method is more convenient for circuit design and process implementation.

[0058] In some possible implementations, the display mode of the display panel includes a normal display mode and a backup display mode. For the pilot, the normal display mode is a full-screen display, and since the area of ​​the backup display area is the same as that of the normal display area, the backup display mode is also a full-screen display.

[0059] In the normal display mode, the control circuit of the display panel controls the backup pixel driving circuit to be in a power-off state, and controls the normal pixel driving circuit to be in a working state, so as to drive multiple normal display pixel devices in the normal display area to emit light, thereby realizing normal display. In the backup display mode, the control circuit of the display panel controls the normal pixel driving circuit to be in a power-off state, and controls the backup pixel driving circuit to be in a working state, so as to drive multiple backup display pixel devices in the backup display area to emit light, thereby realizing backup display.

[0060] In this way, the normal display area and the backup display area can be independently controlled, so that switching display of the normal display area and the backup display area can be achieved.

[0061] In some possible implementations, the display panel further includes a switch, which can be used to switch the display mode of the display panel. The switch can be a physical switch or a software switch, and the present application does not limit the specific implementation of the switch.

[0062] The display panel of the embodiment of the present application includes a control circuit, a driving backplane, a normal display area and a backup display area, and the area of ​​the backup display area is the same as that of the normal display area, so that in the backup display mode, the same flight parameters as in the normal display mode can be displayed without affecting the pilot's mission execution and flight safety.

[0063] The flow chart and block diagram in the accompanying drawings show the possible architecture, function and operation of the device, system, method and computer program product according to multiple embodiments of the present application. In this regard, each square frame in the flow chart or block diagram can represent a part of a module, program segment or instruction, and a part of the module, program segment or instruction includes one or more executable instructions for realizing the logical function of the specification. In some alternative implementations, the functions marked in the square frame can also occur in a sequence different from that marked in the accompanying drawings. For example, two continuous square frames can actually be executed substantially in parallel, and they can also be executed in reverse order sometimes, depending on the functions involved.

[0064] It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart, can be implemented by hardware that performs the corresponding function or action (such as a circuit or ASIC (Application Specific Integrated Circuit)), or can be implemented by a combination of hardware and software, such as firmware.

[0065] Although the present invention is described herein in conjunction with various embodiments, in the process of implementing the claimed invention, those skilled in the art may understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0066] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A display panel, characterized in that: The display panel includes a control circuit, a driving backplane, a normal display area and a backup display area, wherein the normal display area and the backup display area are arranged on the driving backplane; The normal display area includes a normal pixel driving circuit and a plurality of normal display pixel devices; the backup display area includes a backup pixel driving circuit and a plurality of backup display pixel devices; the area of ​​the backup display area is the same as that of the normal display area; The control circuit is connected to the normal pixel driving circuit and the backup pixel driving circuit, and is used to send a first driving signal to the normal pixel driving circuit and a second driving signal to the backup pixel driving circuit; The normal pixel driving circuit is connected to the plurality of normal display pixel devices, and is used to drive the plurality of normal display pixel devices to display according to the first driving signal; The backup pixel driving circuit is connected to the plurality of backup display pixel devices, and is used to drive the plurality of backup display pixel devices to display according to the second driving signal.

2. The display panel according to claim 1, characterized in that: The number of the normal display pixel devices is the same as the number of the backup display pixel devices; the normal display pixel devices correspond to the backup display pixel devices one by one; and each normal display pixel device is arranged adjacent to the corresponding backup display pixel device.

3. The display panel according to claim 1, characterized in that: Each normal display pixel device includes red, green and blue normal sub-display pixel devices; each backup display pixel device includes red, green and blue backup sub-display pixel devices.

4. The display panel according to claim 3, characterized in that: For any normal display pixel device and the corresponding backup display pixel device, the normal sub-display pixel device and the backup sub-display pixel device of the same color are arranged adjacent to each other.

5. The display panel according to claim 2 or 4, characterized in that: The adjacent arrangement is adjacent arrangement along a horizontal direction or adjacent arrangement along a vertical direction.

6. The display panel according to claim 1, characterized in that: The relationship between the first projection of the normal display pixel device on the driving backplane and the second projection of the corresponding backup display pixel device on the driving backplane is any one of the following: the first projection and the second projection completely overlap; the first projection and the second projection partially overlap; the first projection and the second projection do not overlap at all.

7. The display panel according to claim 1, characterized in that: The control circuit is used for: For any normal display pixel device, when the normal display pixel device fails, display is performed through the corresponding backup display pixel device.

8. The display panel according to claim 1, characterized in that: The display mode of the display panel includes a normal display mode and a backup display mode, and the control circuit is used for: In the normal display mode, the backup pixel driving circuit is controlled to be in a power-off state, and the normal pixel driving circuit is controlled to be in a working state, so as to drive a plurality of normal display pixel devices in the normal display area to display; In the backup display mode, the normal pixel driving circuit is controlled to be in a power-off state, and the backup pixel driving circuit is controlled to be in a working state, so as to drive the multiple backup display pixel devices in the backup display area to display.

9. The display panel according to claim 8, characterized in that: The display panel includes a switch, and the switch is used to switch the display mode.

10. The display panel according to claim 1, characterized in that: The display panel is any one of a liquid crystal display panel, a micro light emitting diode display panel, and a sub-millimeter light emitting diode backlight panel.

Images