TWI842614B - Display panel and display device - Google Patents

Abstract

The present application provides a display panel and a display device. The display panel includes a splicing unit. The splicing unit includes a support plate and at least one display screen. The at least one display screen is arranged on the support plate. A first edge of the support plate is retracted relative to a third edge of the display screen close to a side of the first edge of the support plate. In this way, a splicing seam formed by splicing the display screen of the splicing unit with other display screens may be redcuced in the present application.

Description

A display panel and a display device

The present invention relates to the field of display technology, and in particular to a display panel and a display device.

This invention claims priority from the following applications: Chinese patent applications with application numbers 2022110343498 and 2022110369430 filed on August 26, 2022. The applications are hereby incorporated by reference in their entirety.

The new generation of display technology pursues large-area and diversified display effects. Due to the limitations of the manufacturing process of large-size display screens, splicing display technology was born. The display splicing technology requires high-precision splicing of the screen, and the splicing seams are invisible to the eye. However, the physical splicing gaps and height differences of spliced displays must exist. Therefore, due to the influence of the physical splicing gaps and height differences of spliced display screens, there is a problem that splicing displays cannot achieve seamless splicing effects and affect the display performance of the product.

This application provides a display panel and a display device that can reduce the splicing seam formed by splicing the display screen of the splicing unit with other display screens.

The first technical solution provided by this application is: providing a display panel, including a splicing unit, the splicing unit including a support plate and at least one display screen, the at least one display screen is arranged on the support plate; the first edge of the support plate is retracted relative to the third edge of the display screen close to the first edge of the support plate.

The second technical solution provided by this application is: providing a display device, the display device includes a stacked display panel and a back panel, the display panel includes a splicing unit, the splicing unit includes a support plate and at least one display screen, the at least one display screen is arranged on the support plate; the first edge of the support plate is retracted relative to the third edge of the display screen close to the first edge of the support plate.

The present application provides a display panel and a display device, wherein the display panel includes a splicing unit, the splicing unit includes a support plate and at least one display screen, the at least one display screen is arranged on the support plate, and the first edge of the support plate is retracted relative to the third edge of the display screen near the first edge of the support plate. By setting the first edge of the support plate in a form of being retracted relative to the third edge of the display screen near the first edge of the support plate, when the splicing unit is spliced with other splicing units, the first edge of the support plate and the edge of the support plate of other splicing units will not touch each other, thereby preventing the support plate from obstructing the connection between the display screens, and thus the first edge of the support plate near the first edge of the support plate is retracted relative to the third edge of the display screen near the first edge of the support plate. The third edge of the display screen on the edge side can be seamlessly connected with the third edge of the display screen on the first edge side of the support plate in other splicing units. Since the edge of the display screen is generally a non-display area, the leakage of the non-display area of the spliced display screen can be reduced through seamless connection between the display screens, thereby realizing full-screen display of the product and improving the display performance of the product.

10: Splicing unit

100: Support plate

1000: First Edge

1001: Storage tank

1002: Accommodation hole

1003: Second positioning mark

101: Display screen

1010a: First screen

1010b: Second screen

1011a: first light emitting surface

1011b: Second light-emitting surface

1012: External circuit board

10120: External circuit board

1012a: first external circuit board

1012b: Second external circuit board

1013: The Third Edge

1014: First positioning mark

101a: First display screen

101b: Second display screen

102: Adhesive layer

103: Drive unit box

1030: The second edge

11: Back panel

20: Camera

a,b: Retracted width

B:Relative spacing

Ha:Thickness

L1a: Length of the accommodation hole

L2a: Length of the storage tank

La: length

W1a: Width of the receiving hole

W2a: Width of the receiving groove

Wa: Width

Figure 1 is a side view structural diagram of the first embodiment of the display panel of this application;

Figure 2 is a side view structural diagram of the second embodiment of the display panel of this application;

Figure 3a is a schematic structural diagram of the first embodiment of the support plate in the display panel of this application;

Figure 3b is a top view of the supporting plate of Figure 3a;

Figure 4a is a schematic diagram of the top view of the structure of an embodiment of the first display screen in the display panel of this application;

Figure 4b is a schematic diagram of the side view structure of the first display screen in Figure 4a;

Figure 4c is a schematic diagram of the top view of the external circuit board in the first display screen of Figure 4a;

Figure 4d is a schematic diagram of the side view structure of the external circuit board in the first display screen of the display panel of this application;

Figure 4e is a schematic diagram of the side view structure of another embodiment of the first display screen in the display panel of this application;

Figure 4f is a schematic diagram of the side view structure of another embodiment of the first display screen in the display panel of this application;

Figure 5a is a structural schematic diagram of an embodiment of the process of installing the first display screen in the display panel of this application on the supporting plate;

Figure 5b is a structural schematic diagram of another embodiment of the process of installing the first display screen on the support plate in the display panel of this application;

Figure 5c is a structural schematic diagram of another embodiment of the process of installing the first display screen on the support plate in the display panel of this application;

Figure 6a is a schematic structural diagram of the second embodiment of the support plate in the display panel of this application;

Figure 6b is a schematic diagram of the top view of the support plate of Figure 6a;

Figure 7a is a schematic diagram of the side view structure of an embodiment of the second display screen in the display panel of this application;

Figure 7b is a top view of the external circuit board in the second display screen of Figure 7a;

Figure 8 is a structural schematic diagram of another embodiment of the process of installing the second display screen on the support plate in the display panel of this application;

Figure 9a is a schematic structural diagram of the first embodiment of the display screen in the display panel of this application;

Figure 9b is a schematic diagram of the top view of the display screen of Figure 9a;

Figure 10 is a schematic diagram of the structure of the third embodiment of the support plate in the display panel of this application;

Figures 11a and 11b are schematic structural diagrams of the first embodiment of the process of installing the display screen on the support plate in the display panel of this application.

Figure 12 is a schematic diagram of the side view structure of the third embodiment of the display panel of this application;

Figure 13 is a schematic diagram of the side view structure of the fourth embodiment of the display panel of this application.

The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by the general knowledge in this field without making progressive labor are within the scope of protection of the present invention.

The present application provides a display panel. Please refer to FIG1, which is a side view of the structure of the first embodiment of the display panel of the present application. In this embodiment, the display panel includes a splicing unit 10, and the splicing unit 10 includes a support plate 100 and at least one display screen 101, and the at least one display screen 101 is arranged on the support plate 100. The first edge 1000 of the support plate 100 is retracted relative to the third edge 1013 of the display screen 101 on the side close to the first edge 1000 of the support plate 100. By setting the first edge 1000 of the support plate 100 to be retracted relative to the third edge 1013 of the display screen 101 near the first edge 1000 of the support plate 100, when the splicing unit 10 is spliced with other splicing units 10, the first edge 1000 of the support plate 100 will not touch the edge of the support plate 100 of the other splicing units 10, thereby preventing the support plate 100 from obstructing the connection between the display screens 101. Therefore, the third edge 1013 of the display screen 101 near the first edge 1000 of the support plate 100 can be seamlessly connected with the third edge 1013 of the display screen 101 of other splicing units 10. Since the edge of the display screen 101 is generally a non-display area, the seamless connection between the display screens 101 can reduce the leakage of the non-display area of the spliced display screens 101, thereby realizing a full-screen display of the product and improving the display performance of the product.

In one embodiment, the splicing unit 10 may include only one display screen 101. When manufacturing the splicing unit 10, a single display screen 101 may be manufactured first. The display screen 101 does not have a display frame and can be manufactured by side wiring, high-precision cutting and other processes. Then, the single display screen 101 is bonded to the support plate 100 through the bonding layer 102, so that the single display screen 101 is installed on the support plate 100, and a splicing unit 10 having a display screen 101 is obtained; then, the splicing unit 10 can be spliced with other splicing units 10 for a second time to form a display panel of a larger size.

Please refer to FIG. 1 and FIG. 2 , which is a side view of the second embodiment of the display panel of the present application. Specifically, the splicing unit 10 may include a plurality of display screens 101, which are regularly arranged and disposed on one side of the support plate 100. When manufacturing the display panel of the above embodiment, a single display screen 101 may be manufactured first. The display screen 101 does not have a display frame and may be manufactured by side wiring, high-precision cutting and other processes. Then, a single display screen 101 is bonded to the support plate 100 through the bonding layer 102, so that multiple display screens 101 are spliced on the support plate 100, that is, multiple single display screens 101 are spliced in one splicing unit 10 to obtain a splicing unit 10, and then the splicing unit 10 can be spliced with other splicing units 10 for a second time to form a display panel of a larger size, so that the product can be stacked to achieve the splicing of 2*n or even n*n display screens 101.

In one embodiment, the support plate 100 may be made of ultra-flat glass or alloy plate, so that after a plurality of display screens 101 are installed on the support plate 100, the surface height of each display screen 101 can be guaranteed to be the same, thereby reducing the visual splicing seam caused by the height difference.

Furthermore, in order to better form a seamless splicing screen and realize the full-screen display of the splicing screen, in this embodiment, the edge of the support plate 100 is provided with at least one accommodating groove, which is used to bend the external circuit board of the display screen 101 and insert it into the accommodating groove, so that the external circuit board does not occupy the frame size of the display panel, thereby eliminating the display frame of the splicing unit 10. Therefore, when the splicing unit 10 is spliced with other adjacent splicing units 10, there is no frame structure at the docking position, which better forms a seamless splicing screen, thereby better realizing the full-screen display of the splicing screen.

Specifically, please refer to Figure 3a and Figure 3b, wherein Figure 3a is a schematic diagram of the structure of the first embodiment of the support plate in the display panel of this application, and Figure 3b is a schematic diagram of the structure of the support plate of Figure 3a from a top view. In one embodiment, at least one receiving groove 1001 is provided on the edge of the support plate 100. Specifically, the support plate 100 can be rectangular. If the support plate 100 is rectangular, in an optional embodiment, the edges of the two opposite first sides of the support plate 100 are provided with receiving grooves 1001. In other embodiments, the edges of the two opposite second sides of the support plate 100 are provided with accommodating grooves 1001, or the edges of the two opposite first sides of the support plate 100 and the edges of the two opposite second sides are provided with accommodating grooves 1001.

Please refer to Figures 3a to 4d and Figure 5a, wherein Figure 4a is a top view structural schematic diagram of an embodiment of the first display screen in the display panel of the present application. Figure 4b is a side view structural schematic diagram of the first display screen in Figure 4a. Figure 4c is a top view structural schematic diagram of an external circuit board in the first display screen in Figure 4a. Figure 4d is a side view structural schematic diagram of an external circuit board in the first display screen in Figure 4a. Figure 5a is a structural schematic diagram of an embodiment of the process of installing the first display screen in the display panel of the present application on a support plate. Specifically, at least one display screen 101 includes a first display screen 101a, the first display screen 101a includes a first screen body 1010a and a first external circuit board 1012a located on a side of a first light emitting surface 1011a away from the first screen body 1010a, the first light emitting surface 1011a of the first screen body 1010a is arranged away from the support plate 100, and the projection of the first external circuit board 1012a of the first display screen 101a on the plane where the first light emitting surface 1011a of the first display screen 101a is located is at least partially located outside the first light emitting surface 1011a of the first display screen 101a. Optionally, the first external circuit board 1012a of the first display screen 101a is a flexible circuit board. Therefore, in the process of installing the first display screen 101a of FIG. 4a on the support plate 100 of FIG. 3a, the first external circuit board 1012a of the first display screen 101a can be bent and inserted into the receiving groove 1001.

Please refer to FIG. 3b, FIG. 4c and FIG. 4d, as an embodiment of the support plate of the present application, the length L2a of the receiving groove 1001 is greater than the length La of the first external circuit board 1012a of the first display screen 101a. The width W2a of the receiving groove 1001 is greater than the thickness Ha of the first external circuit board 1012a of the first display screen 101a. Specifically, the length L2a of the accommodating groove 1001 extending along the edge of the supporting plate 100 is greater than the length La of the first external circuit board 1012a of the first display screen 101a extending along the edge of the supporting plate 100; the width W2a of the accommodating groove 1001 extending along the edge perpendicular to the supporting plate 100 is greater than the thickness Ha of the first external circuit board 1012a of the first display screen 101a. Since the length L2a of the accommodating groove 1001 is greater than the length La of the first external circuit board 1012a, the first external circuit board 1012a can be accommodated within the length range of the accommodating groove 1001 after being bent, and since the width W2a of the accommodating groove 1001 is greater than the thickness Ha of the first external circuit board 1012a, the thickness direction of the first external circuit board 1012a after being bent is accommodated within the width range of the accommodating groove 1001. Therefore, the first external circuit board 1012a is not exposed outside the frame of the display panel, and the first external circuit board 1012a does not affect the frame size of the display panel.

Please refer to Figure 4e, Figure 4f and Figure 5b, wherein Figure 4e is a side view structural schematic diagram of another embodiment of the first display screen in the display panel of the present application. Figure 4f is a side view structural schematic diagram of another embodiment of the first display screen in the display panel of the present application. Figure 5b is a structural schematic diagram of another embodiment of the first display screen in the display panel of the present application during the process of installing the first display screen on the support plate. In one embodiment, the first external circuit board 1012a of the first display screen 101a includes a plurality of external circuit boards 10120 arranged side by side. In the process of installing the first display screen 101a on the support plate 100, the plurality of external circuit boards 10120 of the first display screen 101a can be bent and inserted into the same receiving groove 1001. Of course, in other embodiments, the plurality of external circuit boards 10120 of the first display screen 101a can also be bent and inserted into different receiving grooves 1001.

Please refer to Figure 5c, which is a structural schematic diagram of another embodiment of the process of installing the first display screen on the support plate in the display panel of this application. In one embodiment, a plurality of first display screens 101a are arranged side by side on the support plate 100, and each first display screen 101a has a first external circuit board 1012a. Therefore, the plurality of first external circuit boards 1012a corresponding to the plurality of first display screens 101a are arranged side by side. In the process of installing the plurality of first display screens 101a on the support plate 100, the plurality of first external circuit boards 1012a corresponding to the plurality of first display screens 101a can be bent and inserted into the same receiving groove 1001.

A plurality of first external circuit boards 1012a can be bent and inserted into one or more accommodating grooves 1001. The number of first external circuit boards 1012a and accommodating grooves 1001 can be many-to-one, many-to-many, or one-to-one. The shape, size, position, and number of the accommodating grooves 1001 on the support plate 100 are set according to the shape, size, position, and number of the first external circuit boards 1012a of the first display screen 101a.

Please refer to Figure 6a and Figure 6b, where Figure 6a is a schematic diagram of the structure of the second embodiment of the support plate in the display panel of this application. Figure 6b is a schematic diagram of the structure of the support plate of Figure 6a from a top view. On the basis of at least one receiving groove 1001 being provided on the edge of the support plate 100, further, at least one receiving hole 1002 is provided in the middle area of the support plate 100.

Please refer to Figures 6a, 6b, 7a, 7b, 4c and 4d, wherein Figure 7a is a side view structural diagram of an embodiment of the second display screen in the display panel of the present application. Figure 7b is a top view structural diagram of the external circuit board in the second display screen of Figure 7a. Please refer to the above figures. At least one display screen 101 includes a second display screen 101b. The second display screen 101b is located in the middle area of the support plate 100. Each second display screen 101b includes a second screen body 1010b and a second external circuit board 1012b located on a side of a second light emitting surface 1011b away from the second screen body 1010b. The second light emitting surface 1011b of the second screen body 1010b is disposed away from the support plate 100. The second external circuit board 1012b is located in the receiving hole 1002. Optionally, the second external circuit board 1012b is a flexible circuit board or a rigid circuit board. Specifically, the projections of the second external circuit board 1012b of the second display screen 101b on the plane where the second light emitting surface 1011b of the second display screen 101b is located are all located on the second light emitting surface 1011b of the second display screen 101b.

Please refer to Figure 8, which is a structural schematic diagram of another embodiment of the process of installing the second display screen on the support plate in the display panel of this application. In the process of installing the second display screen 101b of Figure 7a on the support plate 100 of Figure 6a, the second external circuit board 1012b of the second display screen 101b can be accommodated in the accommodation hole 1002. Specifically, the accommodation hole 1002 can be used to avoid and hide the second external circuit board 1012b of the second display screen 101b, and the second external circuit board 1012b is placed on the back of the support plate 100 through the accommodation hole 1002, away from the display surface.

In one embodiment, as shown in FIG. 6a and FIG. 6b , taking the supporting plate 100 as a rectangle as an example, a plurality of accommodating holes 1002 are provided in the middle area of the supporting plate 100 , and the plurality of accommodating holes 1002 are arranged in a matrix manner in the middle area of the supporting plate 100 . Combined with the arrangement of the above-mentioned accommodating groove 1001, the first external circuit board 1012a of the first display screen 101a arranged at the edge area of the supporting plate 100 is inserted into the accommodating groove 1001 on the supporting plate 100, and the second external circuit board 1012b of the second display screen 101b arranged in the middle area of the supporting plate 100 is inserted into the accommodating hole 1002 on the supporting plate 100, and n*n display screens 101 can be spliced on the supporting plate 100, realizing the splicing of n*n display screens 101.

In one embodiment, the receiving hole 1002 is configured as a rectangle and has rounded corners or C-shaped corners. The rounded corners or C-shaped corners can increase the strength of the support plate 100.

In one embodiment, as shown in FIG. 6b and FIG. 7b , the length L1a of the accommodating hole 1002 is greater than the length La of the second external circuit board 1012b of the second display screen 101b; the width W1a of the accommodating hole 1002 is greater than the width Wa of the second external circuit board 1012b of the second display screen 101b. Since the length L1a of the receiving hole 1002 is greater than the length La of the second external circuit board 1012b, the second external circuit board 1012b can be accommodated within the length range of the receiving hole 1002, and since the width W1a of the receiving hole 1002 is greater than the width Wa of the second external circuit board 1012b, when the second external circuit board 1012b is a flexible circuit board or a rigid circuit board, its width direction can be accommodated within the width range of the receiving hole 1002, so the second external circuit board 1012b can be completely placed in the frame of the second display screen 101b.

In one embodiment, a second display screen 101b has a second external circuit board 1012b. When the second display screen 101b is mounted on the support plate 100, the second external circuit board 1012b of the second display screen 101b can be accommodated in the corresponding accommodation hole 1002. In another embodiment, a second display screen 101b has a plurality of second external circuit boards 1012b, and the plurality of second external circuit boards 1012b are arranged side by side. When the second display screen 101b is installed on the support plate 100, the plurality of second external circuit boards 1012b of the second display screen 101b can be accommodated in the same accommodation hole 1002, or the plurality of second external circuit boards 1012b of the second display screen 101b can be accommodated in different accommodation holes 1002.

A plurality of second external circuit boards 1012b can be bent and inserted into one or more receiving holes 1002. The number of second external circuit boards 1012b and receiving holes 1002 can be many-to-one, many-to-many, or one-to-one. The shape, size, position, and number of receiving holes 1002 on the support plate 100 are set according to the shape, size, position, and number of the second external circuit boards 1012b of the second display screen 101b.

Please refer to Figure 9a and Figure 9b. Figure 9a is a schematic diagram of the structure of the first embodiment of the display screen in the display panel of this application, and Figure 9b is a schematic diagram of the top view structure of the display screen of Figure 9a. In one embodiment, a first positioning mark 1014 can be made on the back of the display screen 101. The material of the first positioning mark 1014 can be organic glue, metal (such as Cu/Mu, etc.), and the first positioning mark 1014 can be made by laser marking, photolithography and other processes. The shape of the first positioning mark 1014 can be a cross, circle, ellipse, triangle, rhombus, hexagon, L-shaped and square, etc.

Further, please refer to Figure 10, which is a schematic diagram of the structure of the third embodiment of the support plate in the display panel of this application. The surface of the support plate 100 can be made into a second positioning mark 1003. The material of the second positioning mark 1003 can be organic glue, metal (such as Cu/Mu, etc.). Specifically, the second positioning mark 1003 can be made by laser marking, photolithography and other processes, and the shape of the second positioning mark 1003 can be a cross, circle, ellipse, triangle, rhombus, hexagon, L-shape and square, etc.

The second positioning mark 1003 on the support plate 100 and the first positioning mark 1014 on the display screen 101 should be different in shape or size, and the second positioning mark 1003 and the first positioning mark 1014 are matched in shape or size. For example, if the second positioning mark 1003 is larger than the first positioning mark 1014, the second positioning mark 1003 surrounds the first positioning mark 1014. For another example, if the second positioning mark 1003 is smaller than the first positioning mark 1014, the second positioning mark 1003 is embedded in the first positioning mark 1014, so that accurate positioning can be achieved during the process of installing the display screen 101 on the support plate 100.

When installing the first display screen 101 on the support plate 100, please refer to FIG. 11a. FIG. 11a and FIG. 11b are schematic diagrams of the structure of the first embodiment of the display panel of the present application during the process of installing the display screen on the support plate. The second positioning mark 1003 on the support plate 100 and the first positioning mark 1014 on the display screen 101 are captured simultaneously by the same camera 20, and then the display screen 101 is accurately positioned when installed on the support plate 100 according to the first positioning mark 1014 and the second positioning mark 1003. When the adjacent display screen 101 is installed on the support plate 100, the first positioning mark 1014 on the adjacent display screen 101 and the second positioning mark 1003 at the corresponding position on the support plate 100 are simultaneously captured by the camera 20, so that the first positioning mark 1014 of the adjacent display screen 101 and the second positioning mark 1003 at the corresponding position on the support plate 100 are preliminarily positioned and aligned. Then please refer to Figure 11b, and further use the camera 20 to capture the frame of the adjacent display screen 101 to determine the edge position of the frame of the adjacent display screen 101 close to the side of the display screen 101 to be installed currently, and then calculate the relative distance B between each first positioning mark 1014 of the display screen 101 to be installed currently and the above-mentioned edge position of the adjacent display screen 101. According to the relative distance B, it can be determined whether the distance between the display screen 101 to be installed currently and the adjacent display screen 101 meets the preset requirements. If the preset requirements are not met, the splicing position of the display screen 101 to be installed can be adjusted so that the distance between the current display screen 101 to be installed and the adjacent display screen 101 meets the preset requirements before splicing, thereby improving the product alignment accuracy and effectively reducing the splicing process tolerance.

Please refer to FIG. 12, which is a side view of the third embodiment of the display panel of the present application. Based on any of the above embodiments, in this embodiment, the splicing unit 10 further includes a driving unit housing 103, and the second edge 1030 of the driving unit housing 103 is retracted relative to the third edge 1013 of the display screen 101 on the side close to the second edge 1030 of the driving unit housing 103. The driving unit housing 103 in the splicing unit 10, the supporting plate 100, and the display screen 101 on the supporting plate 100 are brought close to and docked with other splicing units 10 as a whole, so as to realize splicing of the splicing unit 10 with other splicing units 10. By setting the second edge 1030 of the driving unit case 103 to be retracted relative to the third edge 1013 of the display screen 101 on the side close to the second edge 1030 of the driving unit case 103, when the splicing unit 10 is spliced with other splicing units 10, the second edge 1030 of the driving unit case 103 and the edge of the driving unit case 103 of other splicing units 10 will not touch each other. To prevent the drive unit housing 103 from obstructing the connection between the display screens 101, the third edge 1013 of the display screen 101 near the second edge 1030 of the drive unit housing 103 can be seamlessly connected with the third edge 1013 of the display screen 101 of other splicing units 10. Since the edge of the display screen 101 is generally a non-display area, the seamless connection between the display screens 101 can reduce the leakage of the non-display area of the spliced display screen 101, thereby realizing a full-screen display of the product and improving the display performance of the product.

Please continue to refer to FIG. 12. In one embodiment, the display panel includes a splicing unit 10, and the splicing unit 10 includes a support plate 100, a drive unit housing 103, and at least one display screen 101. The at least one display screen 101 is arranged on the support plate 100, the display screen 101 is arranged on one side of the support plate 100, and the drive unit housing 103 is arranged on the other side of the support plate 100 facing away from the display screen 101; the first edge 1000 of the support plate 100 is retracted relative to the third edge 1013 of the display screen 101 close to the first edge 1000 of the support plate 100. The second edge 1030 of the driving unit case 103 on the side close to the first edge 1000 of the supporting plate 100 is retracted relative to the third edge 1013 of the display screen 101 on the side close to the first edge 1000 of the supporting plate 100. Specifically, the splicing unit 10 includes the driving unit case 103, the supporting plate 100 and the display screen 101 stacked in sequence from bottom to top, and the driving unit case 103 in the splicing unit 10 together with the supporting plate 100 and the display screen 101 on the supporting plate 100 are brought close to and docked with other splicing units 10 as a whole, so as to realize splicing of the splicing unit 10 with other splicing units 10. In addition, by setting the second edge 1030 of the driving unit case 103 to be retracted relative to the third edge 1013 of the display screen 101 on the side of the first edge 1000 close to the support plate 100, and setting the first edge 1000 of the support plate 100 to be retracted relative to the third edge 1013 of the display screen 101 on the side of the first edge 1000 close to the support plate 100, when the splicing unit 10 is spliced with other splicing units 10, the second edge 1030 of the driving unit case 103 and the edge of the driving unit case 103 of other splicing units 10 will not touch each other. The first edge 1000 of the support plate 100 will not touch the edge of the support plate 100 of other splicing units 10, so as to avoid the driver unit case 103 and the support plate 100 blocking the connection between the display screen 101. Therefore, the third edge 1013 of the display screen 101 close to the second edge 1030 of the driver unit case 103 can be seamlessly connected with the third edge 1013 of the display screen 101 of other splicing units 10. Since the edge of the display screen 101 is generally a non-display area, the leakage of the non-display area of the spliced display screen 101 can be reduced through seamless connection between the display screens 101, thereby realizing full-screen display of the product and improving the display performance of the product.

Please refer to Figure 13, which is a side view of the fourth embodiment of the display panel of the present application. In this embodiment, the display panel includes at least two splicing units 10, at least two splicing units 10 are arranged side by side, and any two adjacent splicing units 10 are connected through the third edge 1013 of the display screen 101 on the side close to the first edge 1000 of the support plate 100.

In one embodiment, the retracted width b of the second edge 1030 of the drive unit housing 103 is smaller than the retracted width a of the first edge 1000 of the support plate 100, that is, b is greater than 0 and less than a. Optionally, the retracted width a of the support plate 100 is 100-500um. For example, the retracted width a of the support plate 100 can be specifically set to 300um, 350um, 400um or 450um. Optionally, the retracted width b of the drive unit housing 103 is 50-300um, for example, the retracted width b of the drive unit housing 103 can be specifically set to 100um, 150um, 200um or 250um. By setting the first edge 1000 of the support plate 100 to be inward relative to the third edge 1013 of the display screen 101 close to the first edge 1000 of the support plate 100, the inward distance a is greater than 0um, and setting the second edge 1030 of the drive unit housing 103 to be inward relative to the third edge 1013 of the display screen 101 close to the second edge 1030 of the drive unit housing 103, and the inward distance b is greater than 0 and less than a, the splicing seam between adjacent splicing units 10 can be minimized.

In one embodiment, the display panel is formed by splicing a plurality of splicing units 10, and the plurality of splicing units 10 are regularly arranged and spliced and fixed. When manufacturing the display panel, a single display screen 101 can be manufactured first. The display screen 101 does not have a display frame. For example, it can be manufactured by side wiring, high-precision cutting and other processes. Then, the single display screen 101 is bonded to the support plate 100 through the bonding layer 102, so that the plurality of display screens 101 are spliced on the support plate 100 to obtain the splicing unit 10. Then, the splicing unit 10 can be spliced with other splicing units 10 for a second time to form a display panel of a larger size, thereby reducing the difficulty of the splicing process of the display screen 101 and realizing the free splicing of several display screens 101.

Furthermore, a receiving space (not shown) is provided at the position of the drive unit case 103 corresponding to the receiving groove 1001 of the support plate 100. As shown in FIG13, since the receiving groove 1001 is used to avoid and hide the external circuit board 1012 of the display screen 101, the external circuit board 1012 can be placed on the back of the support plate 100 through the receiving groove 1001. Therefore, a receiving space should be provided at the position of the drive unit case 103 located on the back of the support plate 100 corresponding to the receiving groove 1001 of the support plate 100. The receiving space can accommodate the external circuit board 1012, so that the external circuit board 1012 located on the back of the support plate 100 can extend into the drive unit case 103.

The present application also provides a display device, which includes a display panel. The display panel in the display device is a display panel in any of the above-mentioned embodiments. In a specific embodiment, the display panel includes a splicing unit, the splicing unit includes a support plate and at least one display screen, and at least one display screen is arranged on the support plate; the first edge of the support plate is retracted relative to the third edge of the display screen on the side close to the first edge of the support plate.

In summary, in the display panel of the display device of the present application, the first edge of the support plate is set to be retracted relative to the third edge of the display screen on the side close to the first edge of the support plate, so that when the splicing unit is spliced with other splicing units, the first edge of the support plate and the edge of the support plate of other splicing units will not touch each other, thereby preventing the support plate from obstructing the display screen. The third edge of the display screen near the first edge of the support plate can be seamlessly connected with the third edge of the display screen of other splicing units. Since the edge of the display screen is generally a non-display area, the seamless connection between the display screens can reduce the leakage of the non-display area of the spliced display screen, thereby realizing full-screen display of the product and improving the display performance of the product.

In another embodiment, at least one receiving groove is provided on the edge of the support plate, and the external circuit board of the display screen is bent and inserted into the receiving groove, so that the external circuit board does not occupy the frame size of the display panel, thereby eliminating the display frame of the splicing unit. Therefore, when the splicing unit is spliced with other adjacent splicing units, the splicing screen has no frame structure at the joint position due to the frameless structure of the splicing unit, forming a seamless splicing screen, thereby better realizing the full-screen display of the splicing screen.

In another embodiment, the splicing unit further includes a driving unit housing, and the second edge of the driving unit housing is retracted relative to the third edge of the display screen near the second edge of the driving unit housing. The driving unit housing in the splicing unit, the supporting plate, and the display screen on the supporting plate are brought close to and docked with other splicing units as a whole, so as to realize splicing of the splicing unit with other splicing units. By setting the second edge of the driving unit case to be inwardly folded relative to the third edge of the display screen close to the second edge of the driving unit case, when the splicing unit is spliced with other splicing units, the second edge of the driving unit case will not touch the edge of the driving unit case of other splicing units.

The above is only the implementation method of this application, and does not limit the patent scope of this application. Any equivalent structure or equivalent process change made by using the description and diagram content of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of this application.

10: Splicing unit

100: Support plate

1000: First Edge

101: Display screen

1013: The Third Edge

102: Adhesive layer

Claims (9)

A display panel includes a splicing unit, the splicing unit includes a support plate and at least one display screen, the at least one display screen is arranged on the support plate; the first edge of the support plate is retracted relative to the third edge of the display screen near the first edge of the support plate; the splicing unit further includes a drive unit box, the second edge of the drive unit box is retracted relative to the third edge of the display screen near the second edge of the drive unit box. The display panel as described in claim 1, wherein at least one accommodating groove is provided at the edge of the support plate; each display screen comprises a screen body and an external circuit board located on a side away from the light-emitting surface of the screen body, and the light-emitting surface of the screen body is arranged away from the support plate; the external circuit board is inserted into the accommodating groove; and/or, the display panel comprises at least two splicing units, at least two splicing units are arranged side by side, and any two adjacent splicing units are connected through the third edge of the display screen on the side close to the first edge of the support plate. The display panel as described in claim 2, wherein the at least one display screen includes a first display screen, the projection of the first external circuit board of the first display screen on the plane where the first light-emitting surface of the first display screen is located is at least partially located outside the first light-emitting surface of the first display screen, and the first external circuit board of the first display screen is inserted into the receiving groove. A display panel as described in claim 3, wherein the length of the accommodating groove is greater than the length of the first external circuit board of the first display screen; and the width of the accommodating groove is greater than the thickness of the first external circuit board of the first display screen. A display panel as described in claim 2, wherein at least one receiving hole is provided in the middle area of the support plate. The display panel as described in claim 5, wherein the at least one display screen includes a second display screen, the projections of the second external circuit board of the second display screen on the plane where the second light-emitting surface of the second display screen is located are all located on the second light-emitting surface of the second display screen, and the second external circuit board of the second display screen is accommodated in the accommodation hole; and/or, the accommodation hole length of the accommodation hole is greater than the length of the second external circuit board of the second display screen; the accommodation hole width of the accommodation hole is greater than the width of the second external circuit board of the second display screen. The display panel as described in claim 1, wherein the display screen is arranged on one side of the support plate, and the drive unit housing is arranged on the other side of the support plate facing away from the display screen; the second edge of the drive unit housing close to the first edge of the support plate is retracted relative to the third edge of the display screen close to the first edge of the support plate. The display panel as described in claim 7, wherein the retracted width of the second edge of the drive unit housing is smaller than the retracted width of the first edge of the support plate; and/or, at least one accommodating groove is provided at the edge of the support plate, and an accommodating space is provided at a position of the drive unit housing corresponding to the accommodating groove of the support plate. A display device, the display device comprising a display panel, the display panel comprising a display panel as described in any one of claim items 1 to 8.

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