CN114783303A - Spliced screen module and display device - Google Patents
Spliced screen module and display device Download PDFInfo
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- CN114783303A CN114783303A CN202210377020.5A CN202210377020A CN114783303A CN 114783303 A CN114783303 A CN 114783303A CN 202210377020 A CN202210377020 A CN 202210377020A CN 114783303 A CN114783303 A CN 114783303A
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
- G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
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Abstract
The invention provides a spliced screen module and a display device, wherein the spliced screen module comprises a first display panel module, a second display panel module and a connecting electrode; the first display panel module comprises a first substrate, a first conductive electrode and a second conductive electrode, wherein a protruding part is arranged at the first end of the first substrate and is perpendicular to the direction of the plane of the first substrate, and the first conductive electrode and the second conductive electrode are respectively positioned at two opposite sides of the protruding part; the second display panel module comprises a second substrate, and a second end of the second substrate is provided with a concave part which is in nested fit with the convex part; the connecting electrode is at least partially positioned in the concave part and electrically connects the first conductive electrode and the second conductive electrode. The invention provides a spliced screen module and a display device, which are used for ensuring the electrical connection between a first conductive electrode and a second conductive electrode and improving the display stability of the spliced screen module.
Description
Technical Field
The invention relates to the technical field of display, in particular to a spliced screen module and a display device.
Background
With the development of society, the ultra-large screen display device gradually gets more and more attention, for example, in public squares, dispatching control centers, monitoring centers, command centers, conference rooms, studio rooms, exhibition rooms, evening party backgrounds, shopping centers and other places, the demand for the ultra-large screen display device is more and more common, and the demand for the screen size is more and more large.
The spliced screen is formed by splicing a plurality of displays, and each display can independently realize image display. The display surfaces of the plurality of displays face the same direction, and the display areas of the plurality of displays form the display area of the spliced screen.
In the design of a splicing screen module, a back binding mode is adopted for multiple times, so that the frame is reduced. The back binding mode refers to that one end of the metal wire is bound on the front face of the display panel module and wound on the back face of the display panel module, and the other end of the metal wire is bound and connected with the flexible circuit board. However, the metal wires are easily broken due to factors such as abrasion and scratch, and display abnormality of the spliced screen module is caused.
Disclosure of Invention
The invention provides a spliced screen module and a display device, which are used for ensuring the electrical connection between a first conductive electrode and a second conductive electrode and improving the display stability of the spliced screen module.
In a first aspect, an embodiment of the present invention provides a tiled display screen module, including a first display panel module, a second display panel module, and a connection electrode;
the first display panel module comprises a first substrate, a first conducting electrode and a second conducting electrode, a protruding part is arranged at the first end of the first substrate and is perpendicular to the direction of the plane of the first substrate, and the first conducting electrode and the second conducting electrode are respectively located on two opposite sides of the protruding part;
the second display panel module comprises a second substrate, and a second end of the second substrate is provided with a concave part which is in nested fit with the convex part;
the connecting electrode is at least partially located in the recess and electrically connects the first conductive electrode and the second conductive electrode.
In a second aspect, an embodiment of the present invention provides a display device, including the tiled screen module according to the first aspect.
The embodiment of the invention provides a spliced screen module, wherein at least part of a connecting electrode is positioned in a concave part, and the concave part wraps the connecting electrode, so that the connecting electrode is not easy to break due to abrasion and scratch, the electrical connection between a first conductive electrode and a second conductive electrode is ensured, and the display stability of the spliced screen module is improved.
Drawings
Fig. 1 is a schematic top view of a first display panel module according to an embodiment of the present invention;
FIG. 2 is a bottom view of the first display panel module shown in FIG. 1;
FIG. 3 is a schematic cross-sectional view along the direction AA' in FIG. 1;
fig. 4 is a schematic top view of a second display panel module according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view taken along the direction BB' in FIG. 4;
fig. 6 is a schematic cross-sectional structure view of a tiled screen module according to an embodiment of the present invention;
fig. 7 is a schematic cross-sectional structure view of another spliced screen module according to an embodiment of the present invention;
fig. 8 is a schematic cross-sectional view of another first display panel module according to an embodiment of the disclosure;
fig. 9 is a schematic cross-sectional view of another second display panel module according to an embodiment of the disclosure;
fig. 10 is a schematic cross-sectional view of another spliced screen module according to an embodiment of the present invention;
fig. 11 is a schematic cross-sectional structure view of another spliced screen module according to an embodiment of the present invention;
fig. 12 is a schematic bottom view of another tiled display module according to an embodiment of the present invention;
FIG. 13 is a schematic cross-sectional view taken along the direction CC' of FIG. 12;
fig. 14 is a schematic cross-sectional view of another second display panel module according to an embodiment of the disclosure;
fig. 15 is a schematic cross-sectional view of another spliced screen module according to an embodiment of the present invention;
fig. 16 is a schematic cross-sectional view of another spliced screen module according to an embodiment of the present invention;
fig. 17 is a schematic cross-sectional view of another spliced screen module according to an embodiment of the present invention;
fig. 18 is a schematic cross-sectional view illustrating a first display panel module according to an embodiment of the invention;
fig. 19 is a schematic cross-sectional view of another second display panel module according to an embodiment of the disclosure;
fig. 20 is a schematic cross-sectional view of another first display panel module according to an embodiment of the disclosure;
fig. 21 is a schematic cross-sectional view of another second display panel module according to an embodiment of the disclosure;
fig. 22 is a schematic cross-sectional view of another spliced screen module according to an embodiment of the present invention;
fig. 23 is a schematic cross-sectional view of another spliced screen module according to an embodiment of the present invention;
fig. 24 is a schematic view of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic top view of a first display panel module according to an embodiment of the present invention, fig. 2 is a schematic bottom view of the first display panel module shown in fig. 1, fig. 3 is a schematic cross-sectional view along the direction AA' in fig. 1, and referring to fig. 1 to fig. 3, the first display panel module 100 includes a first substrate 11, a first conductive electrode 21, and a second conductive electrode 22. The first end of the first substrate 11 is provided with a projection 112. The first conductive electrode 21 and the second conductive electrode 22 are respectively located on opposite sides of the protrusion 112 in a direction perpendicular to the plane of the first substrate 11.
Fig. 4 is a schematic top view of a second display panel module according to an embodiment of the present invention, fig. 5 is a schematic cross-sectional view along the direction BB' in fig. 4, and referring to fig. 4 and fig. 5, the second display panel module 200 includes a second substrate 12, and a second end of the second substrate 12 is provided with a recess 122 nested with the protrusion 112.
Fig. 6 is a schematic cross-sectional structure diagram of a tiled screen module according to an embodiment of the present invention, and referring to fig. 1 to 6, the tiled screen module includes a first display panel module 100, a second display panel module 200, and a connection electrode 23. The connection electrode 23 is at least partially located in the recess 122, one end of the connection electrode 23 is electrically connected to the first conductive electrode 21, and the other end of the connection electrode 23 is electrically connected to the second conductive electrode 22, so that the connection electrode 23 electrically connects the first conductive electrode 21 and the second conductive electrode 22.
The embodiment of the invention provides a spliced screen module, at least part of a connecting electrode 23 is positioned in a concave part 122, and the concave part 122 wraps the connecting electrode 23, so that the connecting electrode 23 is not easy to break due to abrasion and scratch, the electrical connection between a first conductive electrode 21 and a second conductive electrode 22 is ensured, and the display stability of the spliced screen module is improved.
Exemplarily, referring to fig. 6, the connection electrode 23 overlaps the first conductive electrode 21 and the connection electrode 23 overlaps the second conductive electrode 22 in a direction perpendicular to the plane of the first substrate 11. The first conductive electrode 21 is at least partially located in the recessed portion 122, and the second conductive electrode 22 is at least partially located in the recessed portion 122, so that the recessed portion 122 can also provide protection for the first conductive electrode 21 and the second conductive electrode 22, the first conductive electrode 21 and the second conductive electrode 22 are not easily broken due to abrasion and scratch, and the display stability of the tiled screen module is improved.
The connection electrode 23 serves as a wire for connecting the first conductive electrode 21 and the second conductive electrode 22, and in one embodiment, the connection electrode 23 may be a part of the first display panel module 100. In another embodiment, the connection electrode 23 may be a part of the second display panel module 200. In another embodiment, the connection electrode 23 may also exist separately from the first display panel module 100 and the second display panel module 200.
Exemplarily, referring to fig. 4 and 5, the first display panel module 100 includes a first conductive electrode 21 and a second conductive electrode 22. When the first display panel module 100 is manufactured, the first conductive electrode 21 and the second conductive electrode 22 are manufactured as a part of the first display panel module 100. The second display panel module 200 includes a connection electrode 23. When the second display panel module 200 is manufactured, the connection electrode 23 is manufactured as a part of the second display panel module 200. Therefore, by adopting a sectional manufacturing manner, different connection line segments (including the first conductive electrode 21, the second conductive electrode 22 and the connection electrode 23) are formed on the first display panel module 100 and the second display panel module 200 respectively, so that the length of the connection line segments is reduced, and the risk of wire breakage in the manufacturing process is reduced.
Alternatively, referring to fig. 3 and 6, the first substrate 11 includes a first body portion 111 and a protrusion portion 112, and the first body portion 111 is integrally formed with the protrusion portion 112. The thickness of the protruding portion 112 is smaller than that of the first body portion 111 in a direction perpendicular to the plane of the first substrate 11. So that the thickness of the first substrate 11 is equal to or approximately equal to the thickness of the second substrate 12, and the thickness of the tiled screen module at each position is uniform.
Illustratively, the protrusion 112 is a thinned portion of the first end of the first substrate 11. The first body portion 111 and the protrusion portion 112 are formed by etching a part of the thickness at one end of one parallel flat plate.
Alternatively, referring to fig. 5 and 6, the second substrate 12 includes a second body portion 121 and a recess portion 122, and the second body portion 121 and the recess portion 122 are integrally molded. The thickness of the second body portion 121 is equal to that of the recess portion 122 in a direction perpendicular to the plane of the second substrate 12.
Illustratively, the recess 122 is a recessed portion of the second end of the second substrate 12. The second body portion 121 and the recess portion 122 are formed by etching a groove at one end of one of the parallel flat plates.
Alternatively, referring to fig. 6, the first conductive electrode 21 is located on a side of the protrusion 112 facing the light emitting display of the tiled screen module. The second conductive electrode 22 is located on a side of the protrusion portion 112 facing away from the light-emitting display of the tiled screen module. Along the plugging direction of the first display panel module 100 and the second display panel module 200, the length of the first conductive electrode 21 is smaller than that of the second conductive electrode 22, so that a space for binding the first flexible circuit board 81 is reserved for the second conductive electrode 22, and the second conductive electrode 22 is conveniently bound with the first flexible circuit board 81 for electrical connection.
Exemplarily, referring to fig. 1, the first display panel module 100 includes a plurality of pads 61, the first conductive electrode 21 is electrically connected to the pads 61, and further, the driving signal may be provided to the circuit on the front surface of the first substrate 11 through the pads 61.
Fig. 7 is a schematic cross-sectional structure view of another tiled screen module according to an embodiment of the invention, and referring to fig. 7, the first substrate 11 includes a first body portion 111 and a protruding portion 112, and the first body portion 111 and the protruding portion 112 are integrally formed. The thickness of the protruding portion 112 is equal to the thickness of the first body portion 111 in a direction perpendicular to the plane of the first substrate 11. The protrusion 112 is one region of the first substrate 11, and the first body part 111 is the other region of the first substrate 11.
Fig. 8 is a schematic cross-sectional structure diagram of another first display panel module according to an embodiment of the present invention, fig. 9 is a schematic cross-sectional structure diagram of another second display panel module according to an embodiment of the present invention, and referring to fig. 8 and fig. 9, the first display panel module 100 includes a first conductive electrode 21, a second conductive electrode 22, and a connection electrode 23. When the first display panel module 100 is manufactured, the first conductive electrode 21, the second conductive electrode 22, and the connection electrode 23 are manufactured as a part of the first display panel module 100. When the second display panel module 200 is manufactured, a conductive electrode does not need to be formed in the recess 122, so that the process of manufacturing the conductive electrode is concentrated on the first display panel module 100, and the process is simplified.
The connection electrode 23 serves as a wire for connecting the first and second conductive electrodes 21 and 22, and the shape of the connection electrode 23 may have various designs.
Exemplarily, referring to fig. 5 and 6, the connection electrode 23 includes a first sidewall 231, a second sidewall 232, and a third sidewall 233, the third sidewall 233 connects the first sidewall 231 and the second sidewall 232, and the first sidewall 231 and the second sidewall 232 are opposite to each other. The first sidewall 231 is located on a side of the first electrode 21 away from the protrusion 112, and the second sidewall 232 is located on a side of the second electrode 22 away from the protrusion 112. The third side wall 233 is located on a side of the protruding portion 112 away from the first body portion 111. In the embodiment of the present invention, the connection electrode 23 is U-shaped.
Fig. 10 is a schematic cross-sectional view of another tiled display module according to an embodiment of the present invention, and referring to fig. 10, the connection electrode 23 includes a first sidewall 231 and a third sidewall 233, and the first sidewall 231 is connected to the third sidewall 233. The first sidewall 231 is located on a side of the first conductive electrode 21 away from the protruding portion 112. The third side wall 233 is located on a side of the protruding portion 112 away from the first body portion 111. In the embodiment of the present invention, the connection electrode 23 has an L-shape.
In one embodiment, the connection electrode 23 includes a second sidewall 232 and a third sidewall 233, and the second sidewall 232 and the third sidewall 233 are connected. The second sidewall 232 is located on a side of the second conductive electrode 22 away from the protruding portion 112. The third side wall 233 is located on a side of the protruding portion 112 away from the first body portion 111. The connection electrode 23 is L-shaped.
Fig. 11 is a schematic cross-sectional view of another tiled screen module according to an embodiment of the invention, and referring to fig. 11, the connection electrode 23 includes a third sidewall 233, and the third sidewall 233 is located on a side of the protruding portion 112 away from the first body portion 111. The connection electrode 23 is line segment shaped.
The present invention further exemplarily provides some embodiments for fixing the first display panel module 100 and the second display panel module 200 together in a fitting manner, and improving the alignment accuracy between the first conductive electrode 21 and the connection electrode 23 and the connection stability between the first conductive electrode 21 and the connection electrode 23 and the second conductive electrode 22.
Optionally, referring to fig. 6, the tiled screen module further includes a first connecting member 31, the first connecting member 31 is located on the first surface 71 of the protruding portion 112, and the first surface 71 is parallel to the plane of the first substrate 11. The second substrate 12 includes a second body portion 121, and the second body portion 121 is connected to the recess portion 122. The spliced screen module further comprises a first fitting member 41, the first fitting member 41 is fixed at an end portion of one side of the connection electrode 23 far away from the second body portion 121, and the first fitting member 41 is in contact connection with the first connecting member 31. In the embodiment of the present invention, the first fitting 41 is connected in contact with the first connecting member 31, thereby electrically connecting the connecting electrode 23 to the first conductive electrode 21 in contact, electrically connecting the connecting electrode 23 to the second conductive electrode 22 in contact, and fixedly connecting the first conductive electrode 21, the second conductive electrode 22, and the connecting electrode 23 together.
For example, referring to fig. 3 and 5, when the connection electrode 23 is disposed in the second display panel module 200, the first fitting 41 is fixed at an end of the connection electrode 23, and the first fitting 41 may also be disposed in the second display panel module 200, that is, the first fitting 41 is a part of the second display panel module 200.
For example, referring to fig. 8 and 9, when the connection electrode 23 is disposed in the first display panel module 100, the first fitting 41 is fixed at an end of the connection electrode 23, and the first fitting 41 may also be disposed in the first display panel module 100, that is, the first fitting 41 is a part of the first display panel module 100.
Alternatively, referring to fig. 6, the first conductive electrode 21 and the first connecting member 31 are both located on the side of the protrusion 112 facing the light emitting display of the tiled screen module. The light emitting side of the tiled display module is the side of the first substrate 11 away from the first chip 51, that is, the side of the second conductive electrode 22 away from the first conductive electrode 21. The first substrate 11 includes a first body portion 111, and the first body portion 111 is connected to the protruding portion 112. The first connecting element 31 is located between the first conductive electrode 21 and the first body portion 111. Thus, on the one hand, the space between the first conductive electrode 21 and the first body portion 111 provides a sufficient space for the first connecting member 31. On the other hand, the length of the first sidewall 231 of the connection electrode 23 is greater than the length of the first conductive electrode 21, the first sidewall 231 extends toward the first body 111 and beyond the first conductive electrode 21, the first sidewall 231 of the connection electrode 23 can be in contact with and electrically connected to the first conductive electrode 21 of the entire length, and the connection stability between the first conductive electrode 21 and the connection electrode 23 is improved.
Alternatively, referring to fig. 6, the thickness of the first connection member 31 is smaller than that of the first conductive electrode 21 in a direction perpendicular to the plane of the first substrate 11. The first mating member 41 is located between the first sidewall 231 of the connection electrode 23 and the first connection member 31 in a direction perpendicular to the plane of the first substrate 11. The first sidewall 231 is located on a side of the first conductive electrode 21 away from the protruding portion 112. In the embodiment of the present invention, the first engaging element 41 is disposed on one side of the first sidewall 231 facing the inside of the recess 122, the first engaging element 41 is connected to the first connecting element 31 in a contacting manner, and the sum of the thicknesses of the first engaging element 41 and the first connecting element 31 is equal to or approximately equal to the thickness of the first conductive electrode 21 in a direction perpendicular to the plane of the first substrate 11, so as to press the first conductive electrode 21 against the first sidewall 231 of the connection electrode 23, so that the first conductive electrode 21 is electrically connected to the first sidewall 231 of the connection electrode 23 in a contacting manner.
In an embodiment, the first conductive electrode 21 and the first connecting member 31 may also be located on a side of the protrusion 112 facing away from the light emitting display of the tiled screen module.
Fig. 12 is a schematic bottom view of another tiled screen module according to an embodiment of the invention, fig. 13 is a schematic cross-sectional view taken along a direction CC' in fig. 12, and referring to fig. 12 and 13, the first display panel module 100 further includes a second connecting member 32, and the second connecting member 32 is located on the second surface 72 of the protruding portion 112. The second surface 72 is parallel to the first surface 71, and the second surface 72 is opposite to the first surface. The second substrate 12 includes a second body portion 121, and the second body portion 121 is connected to the recess portion 122. The spliced screen module further comprises a second fitting piece 42, the second fitting piece 42 is fixed at the end part of the connecting electrode 23 far away from the second body part 121, the second fitting piece 42 is opposite to the first fitting piece 41, and the second fitting piece 42 is in contact connection with the second connecting piece 32. In the embodiment of the present invention, the second fitting member 42 is connected in contact with the second connecting member 32, thereby electrically connecting the connecting electrode 23 to the first conductive electrode 21, electrically connecting the connecting electrode 23 to the second conductive electrode 22, and connecting and fixing the first conductive electrode 21, the second conductive electrode 22, and the connecting electrode 23 together. Further, since the first connecting member 31 is disposed on the first surface 71 and the second connecting member 32 is disposed on the second surface 72, the alignment accuracy of the first conductive electrode 21 and the second conductive electrode 22 and the connecting electrode 23 is improved and the connection stability of the first conductive electrode 21 and the second conductive electrode 22 and the connecting electrode 23 is improved by the contact connection of the first fitting member 41 and the first connecting member 31 and the contact connection of the second fitting member 42 and the second connecting member 32.
For example, referring to fig. 12 and 13, when the connection electrode 23 is disposed in the second display panel module 200, the second fitting member 42 is fixed to the end portion of the connection electrode 23, and the second fitting member 42 may also be disposed in the second display panel module 200, that is, the second fitting member 42 is a part of the second display panel module 200.
In an embodiment, when the connection electrode 23 is disposed in the first display panel module 100, the second fitting member 42 is fixed at the end of the connection electrode 23, and the second fitting member 42 may also be disposed in the first display panel module 100, that is, the second fitting member 42 is a part of the first display panel module 100.
In one embodiment, the first connecting element 31 and the first mating element 41 can be fixedly connected through a mechanical structure, and the second connecting element 32 and the second mating element 42 can be fixedly connected through a mechanical structure. Wherein the mechanical structure is, for example, a snap structure. Compared with a mechanical structure, the connection through the magnetic force is simpler and more convenient, and compared with the larger volume of the mechanical structure, the structure for connecting the magnetic force is smaller in volume, so that the structure is more suitable for splicing the screen module, the frame of the display panel module (comprising the first display panel module 100 and the second display panel module 200) is reduced, and the screen occupation ratio of the display panel module is increased.
In one embodiment, the first connecting element 31 and the first mating element 41 are both magnetic elements. In another embodiment, one of the first connecting member 31 and the first mating member 41 is a magnetic member, and the other is a ferromagnetic member. That is, the first connecting member 31 is a magnetic member, and the first mating member 41 is a ferromagnetic member; alternatively, the first connecting element 31 is ferromagnetic and the first mating element 41 is magnetic. The magnetic member is a device having magnetism, such as a magnet or an electromagnet. Ferromagnets are devices that have ferromagnetic properties, for example, devices that contain iron, cobalt, and nickel.
In one embodiment, the second connecting element 32 and the second mating element 42 are magnetic elements. In another embodiment, one of the second connector 32 and the second mating member 42 is magnetic and the other is ferromagnetic.
Fig. 14 is a schematic cross-sectional structure view of another second display panel module according to an embodiment of the present invention, and referring to fig. 14, the tiled display module further includes a bonding layer 62, where the bonding layer 62 is located between the first mating member 41 and the connection electrode 23. In the embodiment of the present invention, the bonding layer 62 is used to fix the first mating member 41 on the connection electrode 23.
Specifically, referring to fig. 14, the bonding layer 62 is located between the first mating member 41 and the first sidewall 231 of the connection electrode 23. The first fitting 41 is fixed to the first side wall 231 of the connection electrode 23.
In one embodiment, the tiled screen module further includes a bonding layer 62, and the bonding layer 62 is located between the second mating member 42 and the connection electrode 23. The second mating member 42 is fixed to the second sidewall 232 of the connection electrode 23 using the bonding layer 62.
Fig. 15 is a schematic cross-sectional structure view of another spliced screen module according to an embodiment of the present invention, and referring to fig. 15, the spliced screen module further includes a first anisotropic conductive adhesive 631 and a second anisotropic conductive adhesive 632. The first anisotropic conductive paste 631 is located on a side of the first conductive electrode 21 away from the protrusion 112. The first anisotropic conductive paste 631 is used to electrically connect the first conductive electrode 21 and the connection electrode 23, and to bond and fix the first conductive electrode 21 and the connection electrode 23. The second anisotropic conductive film 632 is disposed on a side of the second conductive electrode 22 away from the protrusion 112. The second anisotropic conductive adhesive 632 is used for electrically connecting the second conductive electrode 22 and the connection electrode 23, and for adhering and fixing the second conductive electrode 22 and the connection electrode 23. In the embodiment of the present invention, the first anisotropic conductive paste 631 and the second anisotropic conductive paste 632 are provided to connect and fix the first conductive electrode 21, the second conductive electrode 22, and the connection electrode 23. Since the first anisotropic conductive adhesive 631 is located on the first conductive electrode 21, the first anisotropic conductive adhesive 631 does not occupy the space between the first conductive electrode 21 and the first body portion 111, thereby reducing the frame of the first display panel module 100.
In an embodiment, the tiled screen module further includes one of the first anisotropic conductive paste 631 and the second anisotropic conductive paste 632, and the first conductive electrode 21 and the connection electrode 23 are connected and fixed or the second conductive electrode 22 and the connection electrode 23 are connected and fixed through the first anisotropic conductive paste 631 or the second anisotropic conductive paste 632.
Fig. 16 is a schematic cross-sectional view of another spliced screen module according to an embodiment of the invention, and referring to fig. 16, the first conductive electrode 21 and the second conductive electrode 22 are magnetic members, and the connection electrode 23 is a magnetic member or a ferromagnetic member. The first conductive electrode 21 and the connection electrode 23 are directly connected by magnetic force, and the second conductive electrode 22 and the connection electrode 23 are directly connected by magnetic force. On one hand, devices are not added in the direction vertical to the plane of the first substrate 11, and the using amount of the devices is reduced; on the other hand, the space between the first conductive electrode 21 and the first body 111 is not occupied, and the frame of the first display panel module 100 is reduced.
In one embodiment, the first conductive electrode 21 and the second conductive electrode 22 are ferromagnetic, and the connecting electrode 23 is a magnetic member.
Fig. 17 is a schematic cross-sectional view of another tiled display panel module according to an embodiment of the invention, and referring to fig. 17, the second display panel module 200 includes a plurality of light emitting diodes 64. A part of the number of the light emitting diodes 64 overlaps the connection electrode 23 in a direction perpendicular to the plane of the second substrate 12. In the embodiment of the invention, the light emitting diode 64 is disposed in the region of the recessed portion 122, and the light emitting diode 64 in the region of the recessed portion 122 can emit light for display, so as to reduce the shadow at the joint of the first display panel module 100 and the second display panel module 200. From this, the demonstration homogeneity of concatenation screen module has been improved.
Exemplarily, referring to fig. 17, the light emitting diode 64 may be an organic light emitting diode or an inorganic light emitting diode. In terms of manufacturing process, the inorganic light emitting diode can be smaller than the organic light emitting diode, i.e., the occupied area of the inorganic light emitting diode is smaller than that of the organic light emitting diode.
In one embodiment, the thickness of each position of the protrusion 112 is the same in a direction perpendicular to the plane of the first substrate 11. The projection 112 comprises a parallel flat plate.
In another embodiment, the protrusion 112 may have two different thicknesses at two different positions in a direction perpendicular to the plane of the first substrate 11. The projection 112 includes a plurality of parallel flat plates.
Fig. 18 is a schematic cross-sectional view of another first display panel module according to an embodiment of the invention, and referring to fig. 18, the first substrate 11 includes a first main body 111, and the first main body 111 is connected to the protruding portion 112. The protrusion 112 includes a first sub protrusion 1121 and a second sub protrusion 1122, and the first sub protrusion 1121 connects the second sub protrusion 1122 with the first body portion 111. The thickness of the first sub-protrusion 1121 is greater than that of the second sub-protrusion 1122 in a direction perpendicular to the plane of the first substrate 11. The first conductive electrode 21 includes a first sub conductive electrode 211 and a second sub conductive electrode 212 connected to each other. The second conductive electrode 22 includes a third sub conductive electrode 221 and a fourth sub conductive electrode 222 connected to each other. The first sub-via 211 and the fourth sub-via 222 are located on two opposite sides of the first sub-protrusion 1121 in a direction perpendicular to the plane of the first substrate 11. The second sub-conductive electrode 212 and the third sub-conductive electrode 221 are located at two opposite sides of the second sub-protrusion 1122.
Fig. 19 is a schematic cross-sectional structure view of another second display panel module according to an embodiment of the invention, which corresponds to the first display panel module shown in fig. 18, and referring to fig. 19, the connection electrode 23 includes a first sidewall 231, a second sidewall 232, and a third sidewall 233. The first sidewall 231 includes a first sub-sidewall 2311 and a second sub-sidewall 2312. The second sub-sidewall 2312 connects the first sub-sidewall 2311 and the third sidewall 233. The second sidewall 232 includes a third sub-sidewall 2321 and a fourth sub-sidewall 2322. The third sub-sidewall 2321 connects the fourth sub-sidewall 2322 and the third sidewall 233.
Referring to fig. 18 and 19 in combination, when the tiled display module includes the first display panel module 100 shown in fig. 18 and the second display panel module 200 shown in fig. 19, the first sub-conductive electrode 211 overlaps and is electrically connected to the first sub-sidewall 2311, the second sub-conductive electrode 212 overlaps and is electrically connected to the second sub-sidewall 2312, the third sub-conductive electrode 221 overlaps and is electrically connected to the third sub-sidewall 2321, and the fourth sub-conductive electrode 222 overlaps and is electrically connected to the fourth sub-sidewall 2322.
Fig. 20 is a schematic cross-sectional view of another first display panel module according to an embodiment of the invention, and referring to fig. 20, the first display panel module 100 includes a first substrate 11 and a protrusion 112. The first substrate 11 and the protruding portion 112 are independently provided, that is, the protruding portion 112 is not provided as a part of the first substrate 11, but one device is separately provided at the first end of the first substrate 11 to be used as the protruding portion 112.
Fig. 21 is a schematic cross-sectional view of another second display panel module according to an embodiment of the invention, and referring to fig. 21, the second display panel module 200 includes a second substrate 12 and a recess 122. The second substrate 12 and the recess 122 are independently provided, that is, the recess 122 is not provided as a part of the second substrate 12, but one device is separately provided at the second end of the second substrate 12 to be used as the recess 122.
Fig. 22 is a schematic cross-sectional view of another tiled display panel module according to an embodiment of the invention, and referring to fig. 22, the second display panel module 200 further includes a third conductive electrode 24 and a protective layer 25. The third conductive electrode 24 wraps two opposite surfaces of the first end of the second substrate 12, and one end of the third conductive electrode 24 is bound to the front surface of the second display panel module 200 and winds to the back surface of the second display panel module 200. The protective layer 25 covers the third conductive electrode 24. Along the plugging direction of the first display panel module 100 and the second display panel module 200, the second end of the second substrate 12 is opposite to the first end of the second substrate 12. In the embodiment of the present invention, the second display panel module 200 is the last display panel module, and no recess of other display panel modules wraps the second display panel module 200 behind the second display panel module, so that the protective layer 25 is provided in the embodiment of the present invention, and the protective layer 25 wraps the third conductive electrode 24, so that the third conductive electrode 24 is not easily broken due to abrasion and scratch, and the display stability of the tiled screen module is improved.
Fig. 23 is a schematic cross-sectional view of another tiled screen module according to an embodiment of the invention, and referring to fig. 23, the tiled screen module includes a first display panel module 100, a second display panel module 200, and a third display panel module 300. The second display panel module 200 includes a second protrusion portion 123, and the second protrusion portion 123 is disposed at the first end of the second substrate 12. The third display panel module 300 includes a third substrate 13, and a second end of the third substrate 13 is provided with an additional concave portion 132 nested and matched with the second convex portion 123. It is understood that in other embodiments, the tiled screen module can include more than three display panel modules.
Optionally, referring to fig. 22, the first display panel module 100 further includes a first flexible circuit board 81 and a first chip 51, and the first chip 51 is located on the first flexible circuit board 81. The first flexible circuit board 81 and the first chip 51 are both located on a side of the first substrate 11 away from the light emitting display of the tiled screen module. The first flexible circuit board 81 is electrically bonded to the second conductive electrode 22. The first chip 51 is electrically connected to the second conductive electrode 22 through the first flexible printed circuit board 81, and thus is electrically connected to the circuit on the front surface of the first substrate 11 through the second conductive electrode 22, the connection electrode 23, and the first conductive electrode 21, so as to provide a driving signal to the circuit on the front surface of the first substrate 11. The front surface of the first substrate 11 refers to a side of the tiled display module that emits light.
Optionally, referring to fig. 22, the second display panel module 200 further includes a second flexible circuit board 82 and a second chip 52, and the second chip 52 is located on the second flexible circuit board 82. The second flexible circuit board 82 and the second chip 52 are both located on a side of the second substrate 12 facing away from the light-emitting display of the tiled screen module. The second flexible circuit board 82 is in bonded electrical connection with the third conductive electrode 24. The second chip 52 is electrically connected to the third conductive electrode 24 through the second flexible circuit board 82, so as to be electrically connected to the circuit on the front surface of the second substrate 12 through the third conductive electrode 24, and provide the driving signal for the circuit on the front surface of the second substrate 12. The front surface of the second substrate 12 refers to a side of the tiled display module that emits light.
Exemplarily, referring to fig. 17 and fig. 22 in combination, the second chip 52 provides a driving signal for the light emitting diodes 64 in the second display panel module 200 through the second flexible circuit board 82 and the third conductive electrode 24, and controls the light emitting diodes 64 in the region where the second body portion 121 is located and the region where the recess portion 122 is located to emit light.
Fig. 24 is a schematic view of a display device according to an embodiment of the present invention, and referring to fig. 24, the display device includes the tiled screen module according to any of the embodiments. The tiled screen module includes a first display panel module 100 and a second display panel module 200. The display device provided by the embodiment of the invention comprises the spliced screen module in the embodiment, so that the spliced screen module has the beneficial effects that the electrical connection between the first conductive electrode 21 and the second conductive electrode 22 is ensured, and the display stability of the spliced screen module is improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (17)
1. A spliced screen module is characterized by comprising a first display panel module, a second display panel module and a connecting electrode;
the first display panel module comprises a first substrate, a first conducting electrode and a second conducting electrode, a protruding part is arranged at the first end of the first substrate and is perpendicular to the direction of the plane of the first substrate, and the first conducting electrode and the second conducting electrode are respectively located on two opposite sides of the protruding part;
the second display panel module comprises a second substrate, and a second end of the second substrate is provided with a concave part which is in nested fit with the convex part;
the connecting electrode is at least partially positioned in the recess and electrically connects the first conductive electrode and the second conductive electrode.
2. The tiled screen module of claim 1, wherein the first display panel module further comprises a first connector on a first surface of the protrusion, the first surface being parallel to the plane of the first substrate;
the second substrate includes a second body part connected with the recess part; the spliced screen module further comprises a first fitting piece, wherein the first fitting piece is fixed at the end part of one side, far away from the second body part, of the connecting electrode and is in contact connection with the first connecting piece.
3. The tiled screen module of claim 2, wherein the first conductive electrode and the first connector are both located on a side of the protrusion facing the light emitting display of the tiled screen module;
the first substrate comprises a first body part connected with the protruding part; the first connecting piece is positioned between the first conductive electrode and the first body part.
4. The spliced screen module of claim 2, wherein the first connector has a thickness less than a thickness of the first conductive electrode in a direction perpendicular to a plane of the first substrate;
the direction perpendicular to the plane of the first substrate is that the first mating piece is positioned between the first side wall of the connecting electrode and the first connecting piece;
wherein the first side wall is located on a side of the first conductive electrode away from the protruding portion.
5. The tiled screen module of claim 2, wherein the first connector and the first mating member are magnetic members; or,
one of the first connecting piece and the first matching piece is a magnetic piece, and the other one is a ferromagnetic body.
6. The tiled screen module of claim 2, wherein the first display panel module further comprises a second connector on a second surface of the projection, the second surface being parallel to the first surface, opposite the first surface;
the second substrate includes a second body part connected with the recess part; the spliced screen module further comprises a second fitting piece, wherein the second fitting piece is fixed at the end part of the connecting electrode, far away from one side of the second body part, is opposite to the first fitting piece and is in contact connection with the second connecting piece.
7. The tiled screen module of claim 2, further comprising a bonding layer between the first mating member and the connection electrode.
8. The spliced screen module of claim 1, further comprising a first anisotropic conductive adhesive and/or a second anisotropic conductive adhesive;
the first anisotropic conductive adhesive is located on one side, away from the protruding portion, of the first conductive electrode, and the second anisotropic conductive adhesive is located on one side, away from the protruding portion, of the second conductive electrode.
9. The tiled screen module of claim 1, wherein the first and second conductive electrodes are magnetic elements, and the connecting electrode is a magnetic or ferromagnetic element;
or,
the first conducting electrode and the second conducting electrode are ferromagnets, and the connecting electrode is a magnetic piece.
10. The tiled screen module of claim 1, wherein the second display panel module comprises a plurality of light emitting diodes;
and in the direction perpendicular to the plane of the second substrate, a part of the light emitting diodes are overlapped with the connecting electrodes.
11. The tiled screen module of claim 1, wherein the first substrate includes a first body portion connected with the projection;
the projection comprises a first sub-projection and a second sub-projection, and the first sub-projection is connected with the second sub-projection and the first body part; the thickness of the first sub-protrusion part is larger than that of the second sub-protrusion part in the direction perpendicular to the plane of the first substrate;
the first conducting electrode comprises a first sub-conducting electrode and a second sub-conducting electrode which are connected, the second conducting electrode comprises a third sub-conducting electrode and a fourth sub-conducting electrode which are connected, the third sub-conducting electrode and the fourth sub-conducting electrode are perpendicular to the direction of the plane of the first substrate, the first sub-conducting electrode and the fourth sub-conducting electrode are located on two opposite sides of the first sub-protruding portion, and the second sub-conducting electrode and the third sub-conducting electrode are located on two opposite sides of the second sub-protruding portion.
12. The spliced screen module of claim 1, wherein the second display panel module further comprises a third conductive electrode and a protective layer, the third conductive electrode wraps two opposite surfaces of the first end of the second substrate, and the protective layer wraps the third conductive electrode;
and along the plugging direction of the first display panel module and the second display panel module, the second end of the second substrate is opposite to the first end of the second substrate.
13. The tiled screen module of claim 1, wherein the first display panel module further comprises a first flexible circuit board and a first chip, the first chip being located on the first flexible circuit board;
the first flexible circuit board and the first chip are both positioned on one side of the first substrate, which is far away from the light-emitting display of the splicing screen module;
the first flexible circuit board is electrically connected with the second conductive electrode in a binding mode.
14. The tiled screen module of claim 12, wherein the second display panel module further comprises a second flexible circuit board and a second chip, the second chip being located on the second flexible circuit board;
the second flexible circuit board and the second chip are both positioned on one side, deviating from the light-emitting display of the spliced screen module, of the second substrate;
the second flexible circuit board is electrically connected with the third conductive electrode in a binding mode.
15. The tiled screen module of claim 1, wherein the first substrate includes a first body portion and the projection portion, the first body portion being integrally formed with the projection portion;
the thickness of the protruding part is smaller than that of the first body part in the direction perpendicular to the plane of the first substrate.
16. The tiled screen module of claim 1, wherein the first conductive electrode is located on a side of the protrusion facing a light emitting display of the tiled screen module;
and along the plugging direction of the first display panel module and the second display panel module, the length of the first conductive electrode is smaller than that of the second conductive electrode.
17. A display device comprising the tiled screen module of any of claims 1-16.
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| CN202210377020.5A CN114783303B (en) | 2022-04-11 | 2022-04-11 | Spliced screen module and display device |
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| CN202210377020.5A CN114783303B (en) | 2022-04-11 | 2022-04-11 | Spliced screen module and display device |
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| CN114783303B (en) | 2023-11-03 |
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