Driving method of spliced screen and spliced screen

Abstract

The embodiment of the invention provides a driving method of a spliced screen and the spliced screen. The spliced screen comprises a plurality of panels spliced with one another and display units arranged between every two adjacent panels, when driving is carried out, a display area is divided into a plurality of different first display sub-areas, the spliced area is divided into a plurality of second display sub-areas, the first display sub-areas and the second display sub-areas form a mapping relation, and the first display sub-areas and the second display sub-areas are matched with the second display sub-areas. The time sequence of receiving the image signals in the first sub-display area and the second sub-display area is adjusted, and the first sub-display area and the second sub-display area can be synchronously displayed, so that different areas can be synchronously displayed, and the consistency of the display effect of the spliced screen is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of display technology of spliced ​​display panels, and in particular to a driving method of a spliced ​​screen and the spliced ​​screen. Background Art

[0002] With the in-depth development of technologies such as 5G, the Internet, and big data, the demand for screen size continues to increase, especially the demand for large-screen displays has gradually become the mainstream of the market. However, the size of the LCD screen prepared in the existing technology is limited by equipment and process, and cannot meet the market demand for large screens. Therefore, spliced ​​screen display panels have gradually become a research direction and have been applied to many fields.

[0003] In the prior art, when multiple smaller-sized liquid crystal display panels are spliced ​​together, in order to achieve a better display effect, a display unit, such as multiple mini light emitting diodes (Mini-LEDs), is usually set in the splicing area between adjacent liquid crystal display panels. The display difference between the splicing area and the display area is eliminated by the LEDs in the splicing area. However, since the LEDs in the splicing area are all separately set, the driving system of the LEDs in this area is different from the driving system in the liquid crystal display panel in the display area, and the corresponding control methods and display effects of the two are inconsistent, which can easily lead to the images in the display area and the splicing area cannot be output at the same time, resulting in a sense of tearing the display screen, and even freezing in severe cases, affecting the normal display of the splicing screen, which is not conducive to further improving the display effect and comprehensive performance of the splicing screen.

[0004] In summary, in the spliced ​​display screen in the prior art, the driving modes of the driving systems between each display panel display area and the corresponding spliced ​​area are different, resulting in asynchronous display effects between the two different areas, thereby reducing the overall performance of the spliced ​​screen. Summary of the invention

[0005] The embodiments of the present invention provide a driving method of a spliced ​​screen and a spliced ​​screen, so as to effectively improve the problem in the prior art that the display effect between each display panel display area and the corresponding spliced ​​area in the spliced ​​display screen is not synchronized and the display effect is not ideal.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a driving method of a spliced ​​screen, wherein the spliced ​​screen includes a display area and a splicing area arranged between adjacent display areas, and the spliced ​​screen includes a display panel located in the display area and a display unit located in the splicing area, characterized in that it includes the following steps:

[0007] Dividing the display area into a plurality of first display sub-areas, and dividing the splicing area into a plurality of second display sub-areas, so that the first display sub-areas and the second display sub-areas form a mapping relationship;

[0008] The timing of receiving the image signal by the plurality of second display sub-areas is adjusted so that the first display sub-areas are displayed synchronously with the corresponding second display sub-areas.

[0009] According to an embodiment of the present invention, in the step of "dividing the display area into a plurality of first display sub-areas and dividing the spliced ​​area into a plurality of second display sub-areas", the number of the first display sub-areas and the second display sub-areas formed by division is the same.

[0010] According to an embodiment of the present invention, in the first display sub-area and the second display sub-area, the number of the display units corresponding to each of the first display sub-areas is greater than the number of the display units corresponding to each of the second display sub-areas.

[0011] According to an embodiment of the present invention, the step of “dividing the display area into a plurality of first display sub-areas, and dividing the spliced ​​area into a plurality of second display sub-areas, so that the first display sub-areas and the second display sub-areas form a mapping relationship” further includes:

[0012] Dividing the display area of ​​each of the display panels into a plurality of rows in the row direction, and at the same time, dividing each of the splicing areas into a plurality of rows in the row direction;

[0013] A one-to-one mapping relationship is formed between the area corresponding to each row of the divided display area and any row in the divided spliced ​​area, or each row of the divided display area is simultaneously corresponding to multiple rows of areas in the divided spliced ​​area;

[0014] At the same time, a control signal is provided to each row of the display area and one or more rows of the corresponding splicing area, so that they are displayed synchronously.

[0015] According to an embodiment of the present invention, the step of “adjusting the timing of receiving the image signal by the plurality of second display sub-areas so that the first display sub-areas and the corresponding second display sub-areas are displayed synchronously” further includes:

[0016] The main controller in the panel receives the control signal and sends the number of rows of the display area corresponding to the control signal to the receiving card;

[0017] The receiving card receives the control signal, generates a second control signal according to the control signal, and caches the second control signal in a storage unit;

[0018] The storage unit is divided into a plurality of cache sub-areas, and the second control signal is cached in each of the cache sub-areas respectively, wherein the cache sub-areas correspond to the adjusted first display sub-area of ​​the display area and the second display sub-area of ​​the splicing area.

[0019] According to an embodiment of the present invention, the following steps are also included:

[0020] generating a row counting control signal and a display control signal according to the second control signal;

[0021] The receiving card retrieves the second control signal in the corresponding sub-area from the cache unit, and transmits the second control signal to the splicing area, and repeatedly refreshes and displays when the display control signal is valid.

[0022] According to a second aspect of an embodiment of the present invention, there is further provided a spliced ​​screen, the spliced ​​screen comprising a display area and a spliced ​​area arranged between adjacent display areas, the spliced ​​screen comprising a display panel located in the display area and a display unit located in the spliced ​​area; and

[0023] A receiving card, wherein the receiving card is used to execute the driving method provided in the embodiment of the present application.

[0024] According to one embodiment of the present invention, the splicing area of ​​the splicing screen includes multiple sub-splicing areas, wherein at least one receiving card is arranged in each of the sub-splicing areas, wherein the receiving card is used to receive the control signal of the main controller in the display panel and generate a second control signal according to the control signal.

[0025] According to one embodiment of the present invention, the receiving card includes multiple storage units, the storage units include multiple different buffer sub-areas, and the second control signal is cached in each of the cache sub-areas respectively, wherein the cache sub-areas correspond to the adjusted first display sub-area of ​​the display area and the second display sub-area of ​​the splicing area.

[0026] According to one embodiment of the present invention, the splicing screen further includes a sending card, the sending card is electrically connected to the receiving card, and one sending card is electrically connected to a plurality of receiving cards, and the sending card is used to send a control signal to the receiving card.

[0027] Beneficial effects of the embodiments of the present invention: Compared with the prior art, the embodiments of the present application provide a driving method for a spliced ​​screen and a spliced ​​screen. The spliced ​​screen includes a plurality of panels spliced ​​together and a display unit arranged between two adjacent panels. When driving, the display area is divided into a plurality of different first display sub-areas, and the spliced ​​area is divided into a plurality of second display sub-areas respectively, and a mapping relationship is formed between the first display sub-areas and the second display sub-areas, and the timing of receiving image signals in the first sub-display area and the second sub-display area is adjusted, and the first display sub-area and the second display sub-area can be displayed synchronously, so that different areas can be displayed synchronously, and the consistency of the display effect of the spliced ​​screen is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of a planar structure of a spliced ​​screen provided in an embodiment of the present application;

[0030] Figure 2 Another structural schematic diagram of the spliced ​​screen provided in an embodiment of the present application;

[0031] Figure 3 A schematic flow chart of a driving method for a spliced ​​screen provided in an embodiment of the present application;

[0032] Figure 4 Schematic diagram of the driving method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] In the following detailed description, only certain embodiments of the present invention are shown and described simply by way of illustration. As those skilled in the art will appreciate, the embodiments described herein may be modified in various ways without departing from the spirit or scope of the present invention.

[0034] In the drawings, the thickness of layers, films, panels, regions, etc. may be exaggerated for clarity and for better understanding and ease of description. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being “on” another element, it can be directly on the other element or intervening elements may also be present.

[0035] In addition, unless explicitly described to the contrary, the word "comprise" and its variations like "include" or "contain" will be understood to imply the inclusion of the discussed elements, but not necessarily the exclusion of other elements. Further, in the specification, the word "on..." refers to placement above or below an object part, and does not necessarily mean placement on the upper side of an object part based on the direction of gravity.

[0036] It will be understood that although the terms "first", "second", etc. may be used herein to describe various components, these components should not be limited by these terms. These components are only used to distinguish one component from another.

[0037] As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0038] It will also be understood that the terms “comprises” and / or “comprising” as used herein specify the presence of stated features or components, but do not exclude the presence or addition of one or more other features or components.

[0039] It will be understood that when a layer, region or component is referred to as being “formed on” another layer, region or component, it may be directly or indirectly formed on the other layer, region or component. For example, intervening layers, regions or components may be present.

[0040] In the following examples, the x-axis, y-axis, and z-axis are not limited to the three axes of the rectangular coordinate system and can be interpreted in a broader sense. For example, the x-axis, y-axis, and z-axis can be perpendicular to each other, or can represent different directions that are not perpendicular to each other.

[0041] The embodiments of the present application provide a driving method for a spliced ​​screen and a spliced ​​screen, so as to effectively improve the consistency of display effects between display areas and spliced ​​areas of the spliced ​​screen and improve the comprehensive performance of the spliced ​​screen.

[0042] like Figure 1 As shown, Figure 1 The schematic diagram of the planar structure of a spliced ​​screen provided in the embodiment of the present application. In the embodiment of the present application, the spliced ​​screen is formed by splicing a plurality of different panels. In the following embodiments, the spliced ​​screen takes 4 different panels as an example. The above 4 different panels are spliced.

[0043] Specifically, when splicing, the side edges of each panel correspond to each other and are spliced, such as one side edge of the first panel 1011 is spliced ​​with one side edge of the second panel 1012, and at the same time, the other side edge of the first panel 1011 is spliced ​​with one side edge of the third panel 1013. According to the above splicing method, the four different panels are spliced ​​together and finally a larger spliced ​​screen is formed.

[0044] In the embodiment of the present application, when the above-mentioned different panels are selected, the sizes of the first panel 1011, the second panel 1012, the third panel 1013 and the fourth panel 1014 can all be set to the same size, so as to be spliced ​​to form a regular larger rectangular panel, see Figure 1 Meanwhile, in the following embodiments, different panels are described by taking a liquid crystal display panel as an example.

[0045] Optionally, the above-mentioned different panels can also be selected as panels of other specifications according to usage requirements to meet the different usage requirements of users, which will not be repeated here.

[0046] Furthermore, after the above-mentioned different panels are spliced, they also include a display area 101 and a splicing area 102. The splicing area 102 is located between two adjacent panels. Since there is a gap when the two adjacent panels are spliced, the gap corresponds to the splicing area 102 in the embodiment of the present application.

[0047] Specifically, the splicing area 102 may include a first splicing area 1021 and a second splicing area 1022, see Figure 1 In the embodiment, the first splicing area 1021 is a splicing gap in a vertical direction, and the second splicing area 1022 is a splicing gap in a horizontal direction.

[0048] In the embodiment of the present application, in order to ensure the consistency of the display effects between the above-mentioned display area 102 and the splicing area 102, a display unit 201 is also correspondingly arranged in the splicing area 102. Specifically, the display unit 201 is directly arranged in the corresponding splicing gap and is flush with the side of the panel. When the splicing screen emits light and displays, the display area corresponding to each panel and the display unit in the splicing area emit light and display at the same time, thereby effectively ensuring the consistency of the display effect of the entire splicing screen.

[0049] Furthermore, when the display unit 201 is provided, the display unit 201 may include a plurality of light emitting diodes, and the plurality of light emitting diodes correspond to a plurality of different pixel units. When different light emitting diodes are provided, the light emitting diodes may be arranged in an array on the rows and columns of the display unit 201. When the display unit 201 emits light, the corresponding different pixels are driven, so that the display effect in the splicing area 102 is synchronized with the display effect in the display area 101.

[0050] In an embodiment of the present application, a driving method for a spliced ​​screen is provided, wherein the driving method comprises the following steps:

[0051] Dividing the display area into a plurality of first display sub-areas, and dividing the splicing area into a plurality of second display sub-areas, so that the first display sub-areas and the second display sub-areas form a mapping relationship;

[0052] The timing of receiving the image signal by the plurality of second display sub-areas is adjusted so that the first display sub-areas are displayed synchronously with the corresponding second display sub-areas.

[0053] Specifically, Figure 2 As shown, Figure 2 This is another structural diagram of the splicing screen provided in the embodiment of the present application. In the embodiment of the present application, for the convenience of description and viewing, the first panel 1011 and the second panel 1012 and the splicing area between the two panels are used as an example for explanation. When there are other multiple panels of different numbers, the division and driving method are the same as above, and will not be repeated here.

[0054] The display area and the corresponding splicing area are respectively divided into a plurality of different display sub-areas. Specifically, the display area of ​​the first panel 1011 and the display area of ​​the second panel 1012 are respectively divided into a plurality of different first display sub-areas 301. At the same time, the splicing area between the first panel 1011 and the second panel 1012 is divided into a plurality of different first splicing sub-areas 303.

[0055] When the display area and the splicing area are divided into a plurality of different display sub-areas, they can be divided at the same time. For example, according to the direction of the row corresponding to the display area, the first panel 1011 is divided into a plurality of parallel rows. The width corresponding to each row can be set to the same width or different widths, which can be set according to products of different specifications, and will not be described in detail here.

[0056] At the same time, when the first panel 101 is divided into a plurality of different first display sub-areas 301, the splicing area can be divided at the same time. And the division method of the splicing area can be divided according to the division method of the display area. After the division is completed, a plurality of different first display sub-areas 301 are formed in the display area of ​​the first panel and the second panel, and at the same time, a plurality of different second display sub-areas 303 are formed in the splicing area, wherein the number of the divided first display sub-areas 301 and the second display sub-areas 303 can be the same or different.

[0057] After the display area and the splicing area are divided according to the above method, the above sub-areas are adjusted and formed into a mapping relationship, such as forming a mapping or mutual correspondence between the first display sub-area 301 in the display area and the second display sub-area 303 in the splicing area.

[0058] Specifically, when adjusting and mapping, each first display sub-area 301 in the display area can correspond to the second display sub-area 303 in the splicing area in the same row. At this time, the two are in a one-to-one correspondence. According to the above correspondence, the first display sub-area 301 in the second row of the display area corresponds to the second display sub-area 303 in the second row of the splicing area. Until each first display sub-area 301 in the entire display area corresponds to each second display sub-area 303 in the splicing area, in this way, in the same row, the first display sub-area 301 and the second display sub-area 303 are equivalent to the same whole. In the driving process, the corresponding whole areas receive the same control signal and timing signal so as to be driven at the same time and ensure the consistency of the display effect.

[0059] Furthermore, when the first display sub-area 301 is mapped to the second display sub-area 303, the mapping can also be performed according to a one-to-many mapping relationship or a many-to-one mapping relationship. Specifically, when a one-to-many relationship is used for the mapping, each first display sub-area 301 in the display area is simultaneously mapped to multiple second display sub-areas 303 in the splicing area, such as the first display sub-area 301 in the first row is simultaneously mapped to the second display sub-areas 303 in the first row, the second row, and the third row in the splicing area.

[0060] Meanwhile, when a many-to-one relationship is used for correspondence, specifically, the first display sub-areas 301 in the first row and the second row are selected at the same time, and the two first display sub-areas 301 are made to correspond to a second display sub-area 303 in the spliced ​​area at the same time. According to the above correspondence, each first display sub-area 301 in the display area is corresponded to a different second display sub-area, and adjusted.

[0061] In an embodiment of the present application, through the above-mentioned corresponding method, the first display sub-area in the display area and the second display sub-area in the splicing area are corresponded and adjusted. After the adjustment is completed, the corresponding sub-areas are equivalent to a whole. When the splicing screen is performing luminous display, it has a consistent display effect.

[0062] Furthermore, after adjusting the different sub-areas in the above manner, control signals are provided to the adjusted display area and the sub-areas in the spliced ​​area. Since after the adjustment, the first display sub-area 301 in the display area can correspond to the second display sub-area 303 in the spliced ​​area and form a whole, the control signals received by the area are the same, thereby ensuring that the display area and the spliced ​​area have consistent display effects.

[0063] In the embodiment of the present application, when the display area and the splicing area are divided into a plurality of different sub-areas, the division can also be performed along the direction of the columns of the first panel and the second panel, which will not be described in detail here. Because when dividing, the width of the first display sub-area 301 corresponding to each row or column can be adjusted according to the size of different panels to achieve the best divided area. At the same time, each first display sub-area 301 includes a display unit. If the display unit is a plurality of pixel units, the display of the picture is achieved by emitting light from the corresponding pixel units. In the embodiment of the present application, the number of pixel units in the first display sub-area 301 of each row can be greater than the number of corresponding pixel units in each row in the splicing area.

[0064] Furthermore, after the spliced ​​screen is divided in the above manner, the embodiment of the present application further includes the following steps:

[0065] The main controller in the panel receives the control signal and sends the number of rows of the display area corresponding to the control signal to the receiving card;

[0066] The receiving card receives the control signal, generates a second control signal according to the control signal, and caches the second control signal in a storage unit;

[0067] The storage unit is divided into a plurality of cache sub-areas, and the second control signal is cached in each of the cache sub-areas respectively, wherein the cache sub-areas correspond to the adjusted first sub-display area of ​​the display area and the second sub-display area of ​​the splicing area.

[0068] For details, see Figure 2 A main controller 401 is also provided in the spliced ​​screen, and the main controller is correspondingly provided at the back of each panel. In the following embodiments, the main controller is described by taking a sending card as an example. The sending card is mainly used to receive various control signals in the display area, such as receiving a video signal in the display area, grayscale data of a display screen, and other signals.

[0069] At the same time, a plurality of receiving cards 402 are also arranged in the splicing area. Specifically, at least one receiving card 402 can be arranged in each sub-splicing area. Among them, a plurality of receiving cards 402 can be connected to the sending card 401, and a control signal is sent to the receiving card 402 through the sending card 401, and the sending card sends the number of rows in the corresponding area of ​​the matching panel to each receiving card. In the embodiment of the present application, the receiving card includes a plurality of storage units, and the storage unit includes a plurality of different buffer sub-areas, and the buffer sub-areas are used to store data in the first sub-display area and the second sub-display area.

[0070] like Figure 3 Shown - Figure 4 As shown, Figure 3 This is a schematic flow chart of a driving method for a spliced ​​screen provided in an embodiment of the present application. Figure 4 Schematic diagram of the driving method provided in an embodiment of the present application.

[0071] See Figure 3 Specifically, when driving the pixel units in the display area and the splicing area, the sending card 401 receives the control signal in the liquid crystal panel, and sends the row number of the display area corresponding to the control signal to the receiving card. For example, the control signal corresponds to the first display sub-area 301 of the first row of the display area. The control signal can be a video signal in the display area. In the embodiment of the present application, 6 receiving cards are used as an example to illustrate the splicing area, such as 3 receiving cards are set in the splicing area in the horizontal direction, and 3 receiving cards are set in the splicing area in the vertical direction. At the same time, each receiving card can be set on the back of the display unit. Specifically, the width of the display unit in the embodiment of the present application can be set to 6mm-30mm, or the display unit can be 10 pixels-36 pixels, so that the display unit corresponds to the corresponding splicing area.

[0072] Furthermore, in an embodiment of the present application, when setting the sending card 401, the sending card may be provided with multiple interfaces, each interface corresponding to one or more network cables, such as 16 network cables are provided in each interface of the sending card, and connected to the receiving card through the corresponding network cables, so that one sending card can be electrically connected to multiple different receiving cards at the same time, so as to reduce the number of sending cards, thereby ensuring that the sending card transmits control signals to the receiving card.

[0073] The receiving card receives the control signal and generates a second control signal according to the control signal, and the receiving card stores the generated second control signal in its storage unit. In the embodiment of the present application, the storage unit may be a synchronous dynamic random access memory in the receiving card.

[0074] When storing the second control signal, the storage unit is first divided into a plurality of buffer sub-areas according to the division of the display area and the splicing area, and then different second control signals are cached in each buffer sub-area. In this way, the second control signals corresponding to different first display sub-areas in the display area can be stored in different buffer sub-areas, and all sub-areas in the display area are cached in the above manner.

[0075] In this way, different cache sub-areas correspond to different display area sub-areas and splicing sub-areas. When controlling them, the same second control signal can control the display area and the splicing area at the same time, thereby ensuring that the display area and the splicing area have consistent display effects.

[0076] See Figure 4In one frame, different receiving cards can control different stitching areas. When the LCD panel in the display area is scanned, the corresponding stitching area is scanned and displayed synchronously, so that the display area is consistent with the stitching area.

[0077] Furthermore, in the embodiment of the present application, when caching different control signals, the following steps are also included:

[0078] generating a row counting control signal and a display control signal according to the second control signal;

[0079] The receiving card retrieves the second control signal in the corresponding sub-area from the cache unit, and transmits the second control signal to the splicing area, and repeatedly refreshes and displays when the display control signal is valid.

[0080] When caching different control signals, a row count control signal and a display control signal can be generated according to the second control signal. Specifically, a count control signal can be generated according to the video signal in the display area and the corresponding splicing area, such as the valid data selection signal DE, the line synchronization signal HS, and the field synchronization signal VS. In the embodiment of the present application, the count control signal is a full-frame count value in the video display area. At the same time, a display control signal in the area corresponding to each sub-area is established in the storage unit. The display effect of different areas can be controlled by the display control signal.

[0081] At the same time, when driving, when the counting control signal corresponds to the second control signal in the receiving card, the receiving card takes out the corresponding data from the synchronous dynamic random access memory, and then transmits the corresponding control signal to the display unit. When the display control signal is valid, the display area and the pixel units in the corresponding splicing area are repeatedly refreshed and driven to emit light and display, and the consistency of the display effect is ensured.

[0082] Furthermore, in an embodiment of the present application, a splicing screen is also provided, which may include multiple sub-panels, which are spliced ​​together. At the same time, a display unit is correspondingly arranged in the splicing area, and a receiving card is arranged on the back of the display unit. When driving the splicing screen, the receiving card adopts the driving method provided in the embodiment of the present application to drive it, and realizes the display of the splicing screen.

[0083] Specifically, the spliced ​​screen can be applied to any product or component formed by splicing multiple sub-panels together, such as large-size displays and projection screens, and its specific type is not specifically limited.

[0084] To sum up, the driving method of a splicing screen and the splicing screen provided by the embodiments of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the present invention; although the present invention is disclosed as above in the preferred embodiments, the above preferred embodiments are not used to limit the present invention. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention is based on the scope defined by the claims.

Claims

1. A driving method for a spliced ​​screen, wherein the spliced ​​screen comprises a display area and a splicing area arranged between adjacent display areas, wherein the spliced ​​screen comprises a display panel located in the display area and a display unit located in the splicing area, wherein: The steps include: Dividing the display area into a plurality of first display sub-areas, and dividing the splicing area into a plurality of second display sub-areas, so that the first display sub-areas and the second display sub-areas form a mapping relationship; The timing of receiving the image signal by the plurality of second display sub-areas is adjusted so that the first display sub-areas are displayed synchronously with the corresponding second display sub-areas.

2. The driving method of the spliced ​​screen according to claim 1, characterized in that: In the step of "dividing the display area into a plurality of first display sub-areas, and dividing the spliced ​​area into a plurality of second display sub-areas", the number of the first display sub-areas and the second display sub-areas formed by division is the same.

3. The driving method of the spliced ​​screen according to claim 2, characterized in that: In the first display sub-area and the second display sub-area, the number of the display units corresponding to each of the first display sub-areas is greater than the number of the display units corresponding to each of the second display sub-areas.

4. The driving method of the spliced ​​screen according to claim 1, characterized in that: The step of "dividing the display area into a plurality of first display sub-areas, and dividing the spliced ​​area into a plurality of second display sub-areas, so that the first display sub-areas and the second display sub-areas form a mapping relationship" further includes: Dividing the display area of ​​each of the display panels into a plurality of rows in the row direction, and at the same time, dividing each of the splicing areas into a plurality of rows in the row direction; A one-to-one mapping relationship is formed between the area corresponding to each row of the divided display area and any row in the divided spliced ​​area, or each row of the divided display area is simultaneously mapped to multiple rows of areas in the divided spliced ​​area; At the same time, a control signal is provided to each row of the display area and one or more rows of the corresponding splicing area, so that they are displayed synchronously.

5. The driving method of the spliced ​​screen according to claim 1, characterized in that: The step of "adjusting the timing of receiving the image signal in the plurality of second display sub-areas so that the first display sub-areas and the corresponding second display sub-areas are displayed synchronously" also includes: The main controller in the panel receives the control signal and sends the number of rows of the display area corresponding to the control signal to the receiving card; The receiving card receives the control signal, generates a second control signal according to the control signal, and caches the second control signal in a storage unit; The storage unit is divided into a plurality of cache sub-areas, and the second control signal is cached in each of the cache sub-areas respectively, wherein the cache sub-areas correspond to the adjusted first display sub-area of ​​the display area and the second display sub-area of ​​the splicing area.

6. The driving method of the spliced ​​screen according to claim 5, characterized in that: The following steps are also included: generating a row counting control signal and a display control signal according to the second control signal; The receiving card retrieves the second control signal in the corresponding sub-area from the cache unit, and transmits the second control signal to the splicing area, and repeatedly refreshes and displays when the display control signal is valid.

7. A spliced ​​screen, characterized in that: The spliced ​​screen includes a display area and a splicing area arranged between adjacent display areas, the spliced ​​screen includes a display panel located in the display area and a display unit located in the splicing area; and, A receiving card, wherein the receiving card is used to execute the driving method according to any one of claims 1 to 6.

8. The splicing screen according to claim 7, characterized in that: The splicing area of ​​the splicing screen includes multiple sub-splicing areas, wherein at least one receiving card is correspondingly arranged in each of the sub-splicing areas, wherein the receiving card is used to receive a control signal of a main controller in the display panel and generate a second control signal according to the control signal.

9. The spliced ​​screen according to claim 8, characterized in that: The receiving card includes a plurality of storage units, each of which includes a plurality of different buffer sub-areas, and the second control signal is buffered in each of the buffer sub-areas, wherein the buffer sub-areas correspond to the adjusted first display sub-area of ​​the display area and the second display sub-area of ​​the splicing area.

10. The spliced ​​screen according to claim 7, characterized in that: The spliced ​​screen also includes a sending card, which is electrically connected to the receiving card, and one sending card is electrically connected to a plurality of receiving cards, and the sending card is used to send a control signal to the receiving card.

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