Organic light emitting diode display device

Abstract

The invention discloses an organic light-emitting diode display device which comprises an organic light-emitting diode panel module, a flexible circuit board, a back plate, a bearing frame, a first circuit board and a covering strip. The flexible circuit board is electrically connected with the organic light-emitting diode panel module and is bent backwards to form a reverse folding plate part which is attached to the back surface of the organic light-emitting diode panel module. The organic light emitting diode panel module is stacked in front of the back plate through the bearing frame. The first circuit board is located on the rear side of the backboard. The connecting line connects the first circuit board and the reverse folding plate part through the backboard and the through hole of the bearing frame. And the back plate or the bearing frame is bent corresponding to the side wall of the reverse folding plate part to form a clamping groove part. And the buckling and hooking sheet part of the covering strip sheet is bent from the covering sheet part of the covering strip sheet so as to be inserted and buckled in the clamping and fixing groove part, so that the covering strip sheet is fixed on the side wall and covers the reverse folding plate part.

Description

Technical Field

[0001] The present invention relates to a display device, and more particularly to an organic light-emitting diode display device that uses a clamping groove portion formed by bending from a backplane or a carrier frame to detachably fix a covering strip for covering a flexible circuit board. Background Art

[0002] Since the organic light-emitting diode panel has advantages such as being thinner, more power-saving, and having a more vivid picture than the liquid crystal panel, the organic light-emitting diode (OLED) display has gradually become the mainstream of display devices. Currently, when assembling the organic light-emitting diode display, the organic light-emitting diode panel module needs to be electrically connected to the main circuit board at the rear through a flexible circuit. Since the folded portion of the flexible circuit board requires space and cannot be exposed, a structure is needed to cover it on the front of the display to avoid being visible from the front. Such a covering structure is usually an externally covered housing, which is fixed to the middle frame or the fixing member by screws or snap structures. However, this type of design is prone to the risk of manual alignment deviation during mass production, resulting in assembly defects, and the middle frame and the fixing member will occupy internal space and require assembly processes, leading to an increase in the cost of the organic light-emitting diode display. Summary of the Invention

[0003] Therefore, one of the objectives of the present invention is to provide an organic light-emitting diode display device that uses a clamping groove portion formed by bending from a backplane or a carrier frame to detachably fix a covering strip for covering a flexible circuit board, so as to solve the above problems.

[0004] According to an embodiment, the present invention provides an organic light-emitting diode display device, which includes an organic light-emitting diode panel module, a flexible circuit board, a carrier frame, a backplane, a first circuit board, and a covering strip. The front of the organic light-emitting diode panel module has a display screen area and a non-display screen structure. The flexible circuit board is electrically connected to the lower part of the organic light-emitting diode panel module and bends backward to form at least one folded plate portion attached to the back of the organic light-emitting diode panel module. The organic light-emitting diode panel module is stacked in front of the carrier frame. The frame is stacked in front of the backplane, and the backplane extends to a bottom side of the organic light-emitting diode display device and bends to form a side wall. The side wall covers the organic light-emitting diode panel module, the flexible circuit board, and the carrier frame at the bottom side, and at least a part of the side wall extends and bends upward multiple times to form at least one clamping groove portion. At least one clamping groove space is formed between the at least one clamping groove portion and the backplane. The backplane, the side wall, and the at least one clamping groove portion are integrally formed. The first circuit board is located at the rear side of the backplane. Wherein, at least one through hole is formed between the backplane and the carrier frame, and at least one connecting line passes through the at least one through hole to connect the first circuit board and the folded plate portion. The covering strip has at least one hook portion and a covering portion. The at least one hook portion extends and bends from the covering portion. The at least one hook portion is inserted into the at least one clamping groove space, and the clamping groove portion enters between the at least one hook portion and the covering portion, so that the covering strip is fixed on the side wall of the backplane, and the covering portion covers the flexible circuit board and the non-display screen structure of the organic light-emitting diode panel module.

[0005] According to another embodiment, the present invention further provides an organic light-emitting diode display device, which includes an organic light-emitting diode panel module, a flexible circuit board, a carrier frame, a backplane, a first circuit board, and a covering strip. The front of the organic light-emitting diode panel module has a display screen area and a non-display screen structure. The flexible circuit board is electrically connected to the lower part of the organic light-emitting diode panel module and is bent backward to form at least one folded plate portion and is attached to a back surface of the organic light-emitting diode panel module. The organic light-emitting diode panel module is stacked in front of the carrier frame. The carrier frame is stacked in front of the backplane. The backplane extends to a bottom side of the organic light-emitting diode display device and is bent to form a side wall. The side wall covers the organic light-emitting diode panel module, the flexible circuit board, and the carrier frame at the bottom side. The first circuit board is located at the rear side of the backplane. Wherein, the backplane and the carrier frame form at least one through hole, and at least one connection line passes through the at least one through hole to connect the first circuit board and the folded plate portion. The covering strip has at least one hook piece portion and a covering piece portion, and the at least one hook piece portion extends and bends from the covering piece portion. The carrier frame extends to the side wall, and at least a part of the carrier frame is bent upward from the side wall to form at least one clamping groove portion. At least one clamping groove space is formed between the at least one clamping groove portion and the carrier frame. The at least one clamping groove portion and the carrier frame are integrally formed. The at least one hook piece portion of the covering strip is inserted into the at least one clamping groove space, and the at least one clamping groove portion enters between the at least one hook piece portion and the covering piece portion, so that the covering strip is fixed on the carrier frame, and the covering piece portion covers the flexible circuit board and the non-display screen structure of the organic light-emitting diode panel module.

[0006] According to another embodiment, the present invention further provides an organic light-emitting diode display device, which includes an organic light-emitting diode panel module, a flexible circuit board, a carrier frame, a backplane, a first circuit board, a partition board, a second circuit board, and a covering strip. The front of the organic light-emitting diode panel module has a display screen area and a non-display screen structure. The flexible circuit board is electrically connected to the lower part of the organic light-emitting diode panel module and bends backward to form at least one folded plate portion attached to a back surface of the organic light-emitting diode panel module. The organic light-emitting diode panel module is stacked in front of the carrier frame. The carrier frame is stacked in front of the backplane, and the backplane extends to a bottom side of the organic light-emitting diode display device and bends to form a side wall, and the side wall covers the organic light-emitting diode panel module, the flexible circuit board, and the carrier frame at the bottom side. The first circuit board is located at the rear side of the backplane, wherein the backplane and the carrier frame form at least one through hole, and at least one connection line passes through the at least one through hole to connect the first circuit board and the folded plate portion. The partition board is located behind the first circuit board. The second circuit board is located behind the first circuit board, the partition board is disposed between the first circuit board and the second circuit board, and the first circuit board is electrically connected to the second circuit board. The covering strip has at least one hook portion and a covering portion, and the at least one hook portion is fixed to at least one clamping groove space under the organic light-emitting diode panel module in an insertion and buckling manner, so that the covering portion covers the flexible circuit board and the non-display screen structure of the organic light-emitting diode panel module.

[0007] In summary, in the display device structure of the present invention, the covering strip is not an externally covered housing. During assembly, the covering strip is inserted and buckled into the clamping groove portion formed by bending the side wall of the backplane, and then it can be stably installed on the backplane. The display device structure of the present invention can omit the middle frame required for installing the housing in the prior art, and the clamping groove portion, the side wall, and the backplane or the carrier frame are integrally formed. Therefore, it can meet the requirements of the thinness and narrow lower frame of the display device, and the process of assembling the covering strip is simpler than the traditional alignment and locking structure, which can avoid the deviation caused by manual alignment, is beneficial to simplifying the assembly or maintenance process, and reducing the mass production defect rate. In addition, the display device of the present invention has multiple circuit boards arranged in upper and lower layers, which can reduce the area occupied by a traditional single circuit board, and the circuit boards are separated by a heat dissipation partition board to form a heat dissipation channel. When any one of the circuit boards fails, the circuit boards do not need to be replaced all at once to complete the repair, effectively reducing the repair cost.

[0008] The advantages and spirit of the present invention can be further understood through the following specific embodiments and the accompanying drawings. Brief Description of the Drawings

[0009] Figure 1 A perspective view of an organic light-emitting diode display device according to an embodiment of the present invention.

[0010] Figure 2 is Figure 1 A partial exploded view of an organic light-emitting diode display device.

[0011] Figure 3 is Figure 2 A schematic diagram of the back side part of an organic light-emitting diode panel module.

[0012] Figure 4 is Figure 2 A schematic diagram of the back side part of a covering strip.

[0013] Figure 5 is Figure 1 A partial sectional view of an organic light-emitting diode display device along the section line A-A.

[0014] Figure 6 is Figure 1 A simplified exploded view of the back side part of an organic light-emitting diode display device.

[0015] Figure 7 is Figure 2 An enlarged partial schematic diagram of an organic light-emitting diode panel module mounted on a carrier frame.

[0016] Figure 8 is a partial sectional view of an organic light-emitting diode display device according to an embodiment of the present invention.

[0017] Explanation of reference numerals: 1 - partition; 2 - first circuit board; 3, 4 - second circuit boards; 5 - first support post; 6 - second support post; 10, 10' - organic light-emitting diode display device; 12 - organic light-emitting diode panel module; 14 - flexible circuit board; 16 - back plate; 17 - perforation; 18, 18' - carrier frame; 20 - covering strip; 21 - connection joint; 22 - folded plate portion; 23 - flexible cable; 24, 24' - clamping groove portion; 25 - guiding piece portion; 26 - hook piece portion; 28 - covering piece portion; 30 - first groove structure; 32 - second groove structure; 34 - convex structure; S - back side; B, B' - side walls. Detailed Description of the Invention

[0018] Please refer to Figure 1 , Figure 2 , and Figure 3 , Figure 1 is a perspective view of an organic light-emitting diode display device 10 according to an embodiment of the present invention, Figure 2 is Figure 1 A partial exploded view of the organic light-emitting diode display device 10, Figure 3 is Figure 2Schematic diagram of the back side of the organic light-emitting diode panel module 12. As Figure 1 , Figure 2 and Figure 3 shown, the organic light-emitting diode display device 10 of the present invention may include an organic light-emitting diode panel module 12, a flexible circuit board 14, a backplane 16, a carrier frame 18, and a covering strip 20. The flexible circuit board 14 preferably adopts a Chip On Film (COF) process to achieve the effect of flexible bending of the circuit board, but is not limited thereto, and the flexible circuit board 14 is electrically connected to the organic light-emitting diode panel module 12 to control the display screen of the organic light-emitting diode panel module 12, wherein from Figure 3 it can be seen that the flexible circuit board 14 bends backward from the organic light-emitting diode panel module 12 to form at least one folded-back plate portion 22. The number of the folded-back plate portions 22 depends on the number of flexible circuit boards 14 connected to the light-emitting diode panel module 12, and after the folded-back plate portion 22 is bent, it adheres to the back surface S of the organic light-emitting diode panel module 12 to save the space occupied by the flexible circuit board 14 in the organic light-emitting diode display device 10, thereby realizing the design of a thin and narrow-bottom-frame display device. In some embodiments, the folded-back plate portion 22 of the flexible circuit board 14 attached to the back surface S is a printed circuit board having at least one connection joint. When the organic light-emitting diode display device 10 is face up, the backplane 16 is located below the organic light-emitting diode panel module 12, and the carrier frame 18 is located between the organic light-emitting diode panel module 12 and the backplane 16, whereby the organic light-emitting diode panel module 12 is stacked on the backplane 16. In an embodiment of the present invention, when the organic light-emitting diode display device 10 is vertically erected, the flexible circuit board 14 bends backward in the downward direction of the organic light-emitting diode panel module 12 and adheres to the back surface S, and the backplane 16 bends to form a side wall B on the lower side of the organic light-emitting diode display device 10. The side wall B can be bent to form at least one clamping groove portion 24. The number of the clamping groove portions 24 depends on the assembly requirements. For example, the number and size of the clamping groove portions 24 can be adjusted according to the panel size and the internal space.

[0019] Please refer to Figures 1 to 5 for the structural relationship between the covering strip 20 and the backplane 16, Figure 4 which is Figure 2 a schematic diagram of the back side of the covering strip 20, Figure 5 which is Figure 1Partial cross-sectional schematic view of the organic light-emitting diode display device 10 along the section line A-A. In some embodiments of the present invention, the side wall B of the backplane 16 is folded inward by 180 degrees and then folded back to form a clamping groove portion 24. In this way, the clamping groove portion 24 and the backplane 16 are integrally formed, and a clamping groove space is formed between the clamping groove portion 24 and the main body of the backplane 16. The covering strip 20 is preferably composed of an aluminum extrusion material, but is not limited thereto, to improve the heat dissipation efficiency of the organic light-emitting diode display device 10. The covering strip 20 has a hook portion 26 and a covering portion 28 integrally formed. The hook portion 26 extends and bends from the covering portion 28. In this way, the hook portion 26 of the covering strip 20 can be obliquely inserted into the clamping groove space between the backplane 16 and the clamping groove portion 24, and then rotated to the vertical direction and inserted deeply into the clamping groove space, so that the covering strip 20 is clamped by the clamping groove portion 24 and fixed to the side wall B of the backplane 16, and the covering portion 28 covers the folded plate portion 22 (as Figure 5 shown), preventing the folded plate portion 22 from being exposed to other internal components.

[0020] In an embodiment of the present invention, the clamping groove portion 24 is parallel to the backplane main body for about 1.3 millimeters (mm) starting from the folding point of the side wall B, and then is tilted and folded outward by about 1.1 mm to form a guiding piece portion 25. The clamping groove portion 24 is provided on the left and right sides or other positions of the side wall B, and its width is about 8 mm. In this way, the opening size of the clamping groove space formed inside is about 1.6 mm, and the depth is about 3.2 mm. The opening size between the hook portion 26 and the covering portion 28 of the covering strip 20 is about 1.8 mm, and the depth is 3.4 mm. When the hook portion 26 is inserted into the clamping groove space, the guiding piece portion 25 of the clamping groove portion 24 also enters the opening between the hook portion 26 and the covering portion 28 at the same time, and guides the hook portion 26 to rotate and insert deeply into the clamping groove space. The above dimensions are only examples, but the present invention is not limited thereto. In an embodiment of the present invention, the inclination angle of the guiding piece portion 25 folded outward is about 45 degrees, but is not limited thereto. In an embodiment of the present invention, the vertical length of the covering portion 28 of the covering strip 20 is about 13.6 mm, which can cover an internal space of about 8.7 mm, and maintains a vertical distance of about 1.15 mm from the display screen area of the organic light-emitting diode panel module 12. The covering portion 28 only covers the non-display screen structure below the organic light-emitting diode panel module 12, so it will not block the viewing angle range of the display screen. The above dimensions are only examples, but the present invention is not limited thereto. In summary, the thickness of the side wall of the organic light-emitting diode display device 10 of the present invention can be reduced to less than 5 mm, and the height of the non-screen structure below the front of the organic light-emitting diode display device 10 is reduced to about 15.6 mm, meeting the display device specification requirements of large size, ultra-thin side, and narrow lower frame.

[0021] In addition, please refer to Figure 2 、 Figure 3 andFigure 6 , Figure 6 is Figure 1 a simplified exploded view of the back side of the organic light emitting diode display device 10. In an embodiment of the present invention, perforations may be formed in the backplane and the carrier frame of the organic light emitting diode display device 10 to electrically connect the folded plate portion to the multi-layer circuit board on the back side of the backplane. For example, the back side of the organic light emitting diode display device 10 further includes at least one partition 1 and a plurality of layered circuit boards (such as Figure 6 the first circuit board 2 and the second circuit boards 3, 4 shown), the first circuit board 2 is located inside the partition 1 while the second circuit boards 3, 4 are located outside the partition 1. The folded plate portion 22 attached to the back side is electrically connected to the first circuit board 2 inside the partition 1, and the first circuit board 2 is electrically connected to the second circuit boards 3, 4 outside the partition 1. However, it is not limited thereto. The number, arrangement position and connection relationship of the partition and the layered circuit boards may be determined according to the actual circuit configuration requirements of the organic light emitting diode display device 10. At least one perforation 17 may be formed in the backplane 16 and the carrier frame 18. However, it is not limited thereto. The number of perforations is determined according to the electrical connection requirements between the folded plate portion and the layered circuit boards. The partition 1 is disposed on the back side of the backplane 16 to separate the upper and lower layer spaces, so that the second circuit boards 3, 4 and the first circuit board 2 can be arranged in a stacked manner on the back side of the backplane 16. In some embodiments, the partition 1 is made of a heat-dissipating metal material, such as an aluminum extrusion heat sink. The back side of the backplane 16 has a plurality of first support posts 5 to lift the partition 1 and separate it from the backplane 16 and the first circuit board 2. At the same time, the backplane 16 or the partition 1 has a plurality of second support posts 6 to separate the second circuit boards 3, 4 from the surface of the partition 1. Thus, a heat dissipation channel can be formed between the partition 1 and the first circuit board 2 and the second circuit boards 3, 4. In some embodiments, the partition 1 is screwed to the first support posts 5, and the second circuit boards 3, 4 are screwed to the second support posts 6. However, it is not limited thereto. In some embodiments, the partition 1, the first circuit board 2 and the second circuit boards 3, 4 are covered by a shielding case made of a metal material, and the shielding case is locked to the backplane 16 to shield electromagnetic interference.

[0022] In some embodiments, the first circuit board 2 is a display control circuit board, the second circuit board 3 is a main circuit board, and the second circuit board 4 is a power supply circuit board. However, it is not limited thereto. For example, some circuit boards can be replaced by an external transformer or a video signal device. Through the above design, as Figure 6As shown, the folding plate portion 22 can be electrically connected to the first circuit board 2 and the second circuit boards 3 and 4 by at least one row of wires 23 passing through the perforations 17 in the carrier frame 18 and the back plate 16 to control the display screen of the organic light-emitting diode panel module 12. Here, the wires 23 can also be other electrical connection lines, such as cables or multiple individual signal lines, etc. The hierarchical circuit board architecture of the present invention can reduce the area occupied by the circuit boards, and when any one of the hierarchical circuit boards fails, it can also reduce the maintenance and replacement costs.

[0023] In some embodiments, such as Figure 2 and Figure 5 shown, in order to prevent the folding plate portion 22 attached to the back surface S from colliding with other internal components, resulting in damage or short circuit of the circuit components, the carrier frame 18 has a first groove structure 30 at the position corresponding to the folding plate portion 22 attached to the back surface S. The first groove structure 30 protrudes outward to form a space for accommodating the folding plate portion 22. Further, the back plate 16 also has a second groove structure 32 at the position corresponding to the first groove structure 30. The second groove structure 32 also protrudes outward to form a receiving space to accommodate the first groove structure 30 and the folding plate portion 22. And as Figure 5 and Figure 6 shown, the first groove structure 30 of the carrier frame 18 and the second groove structure 32 of the back plate 16 have perforations 17, and at least one connection joint 21 of the folding plate portion 22 is located in the perforations 17, so that the wires 23 can pass through the perforations 17 to connect to the folding plate portion 22 without friction and collision with the folding plate portion 22.

[0024] In addition, please refer to Figure 7 , Figure 7 which is a partially enlarged schematic view of the organic light-emitting diode panel module 12 mounted on the carrier frame 18. In some embodiments, the carrier frame 18 has at least one convex structure 34 at the position between the folding plate portions 22 of the flexible circuit board 14. For example, in Figure 7 there are two convex structures 34, but the present invention is not limited thereto. The number and position of the convex structures 34 depend on the configuration of the folding plate portions 22 of the flexible circuit board 14. The convex structures 34 can resist the organic light-emitting diode panel module 12 to prevent the organic light-emitting diode panel module 12 from sliding down and pressing on the flexible circuit board 14, causing the folding plate portion 22 to be broken under pressure or colliding with the circuit components to cause damage and short circuit.

[0025] As described above, in the embodiment of the present invention, the assembly process of the organic light-emitting diode display device 10 includes the following steps: First, the flexible circuit board 14 is folded back and attached to the back surface S of the organic light-emitting diode panel module 12 to form a folded-back plate portion 22; then, with the front side facing up, the carrier frame 18 is fixed to the front surface of the backplane 16, wherein the second groove structure 32 of the backplane 16 covers the first groove structure 30 of the carrier frame 18, and the through holes 17 of the second groove structure 32 are aligned with the through holes 17 of the first groove structure 30. The carrier frame 18 can be fixed to the backplane 16 by means of adhesive attachment, structural engagement, screw locking, or other means; Next, the organic light-emitting diode panel module 12 with the folded-back plate portion 22 formed thereon is fixed to the carrier frame 18, for example, by means of adhesive attachment, structural engagement, screw locking, or other means. At least one connection joint 21 of the folded-back plate portion 22 is located in at least one through hole 17 of the carrier frame 18 and the side of the organic light-emitting diode panel module 12 connected to the flexible circuit board 14 is abutted by at least one convex structure 34 of the carrier frame 18; Thereafter, the covering strip 20 is inserted into the clamping groove portion 24 of the backplane 16 and rotated and snapped in so that the covering strip 20 is fixed at the bottom side position of the front surface of the backplane 16, and the covering piece portion 28 covers the flexible circuit board 14 of the organic light-emitting diode panel module 12; Then, the organic light-emitting diode display device 10 being assembled is flipped with the back side facing up, and the inner first circuit board 2 is locked to the back side of the backplane 16, and at least one wiring 23 is connected to at least one connection joint 21 of the folded-back plate portion 22 through the through hole 17 to complete the electrical connection; The partition 1 is locked to the back side of the backplane 16 and covers the first circuit board 2, and then the second circuit boards 3 and 4 are locked to the partition 1 and are respectively connected to the first circuit board 2 and the second circuit boards 3 and 4 by wirings to complete the electrical connection; Finally, the shielding case and the rear case are locked to the backplane 16, wherein the shielding case covers the partition 1, the first circuit board 2, and the second circuit boards 3 and 4, and the rear case covers the shielding case and the backplane 16, and the transmission joints of the second circuit boards 3 and 4 are aligned with the through holes in the rear case, so that the assembly of the main body of the organic light-emitting diode display device 10 can be completed. In the embodiment of the present invention, the first circuit board 2 and the second circuit boards 3 and 4 are not limited to being fixed by means of screw locking, and can also be fixed by means of structural buckling, adhesive, or other means. The first circuit board 2 can also be fixed inside the partition 1 instead of on the backplane 16, and the electrical connection is not limited to using wirings and can be replaced by other electrical connection wires.

[0026] In some embodiments, the carrier frame 18 can be selectively omitted within the organic light-emitting diode display device 10, so as to further simplify the structure of the organic light-emitting diode display device 10. For example, the organic light-emitting diode display device 10 can accommodate and carry the organic light-emitting diode panel module 12 only with the backplane 16, wherein the convex structure 34 is located on the backplane 16 to abut against the organic light-emitting diode panel module 12, and the backplane 16 or the back surface S has a support structure to support and separate the organic light-emitting diode panel module 12 from the back surface S, so that the folded plate portion 22 folded and attached to the back surface S will not rub against or collide with the backplane 16. As described above, the backplane 16 has a clamping groove portion 24, so that the hook portion 26 of the covering strip 20 can be inserted into the clamping groove portion 24 and rotated to be fastened. The clamping groove portion 24 extends to form a guiding piece portion 25. After the covering strip 20 is fixed, it abuts against the side wall B of the backplane 16. Among them, the sizes of the respective parts of the clamping groove portion 24 and the covering strip 20, the position where the corresponding folded plate portion 22 of the backplane 16 is attached to the back surface S bulges to form a groove structure 30, the groove structure 30 can accommodate the folded plate portion 22 and has a through hole 17 and other related designs are the same as those in the foregoing embodiments.

[0027] It is worth mentioning that the clamping groove portion of the present invention is not limited to being integrally formed by multiple bends of the side wall B of the backplane 16 mentioned in the foregoing embodiments. In some embodiments, the side wall can be formed by extending the carrier frame to the side, and the clamping groove portion is formed by bending to fix the covering strip. Please refer to Figure 8 , Figure 8 is a partial cross-sectional schematic diagram of an organic light-emitting diode display device 10' according to an embodiment of the present invention, wherein the elements having the same numbers as those in the foregoing figures represent that they have similar structures or functions, and the relevant descriptions can be analogized with reference to the foregoing embodiments and will not be repeated here. As Figure 8 shown, the organic light-emitting diode display device 10' has an organic light-emitting diode panel module 12, a flexible circuit board 14, a backplane 16, a carrier frame 18', and a covering strip 20. The carrier frame 18' extends to the side of the backplane 16 to form a side wall B' inside the side wall B. The side wall B' is bent to form at least one clamping groove portion 24' for fixing the covering strip 20. The number of the clamping groove portions 24' depends on the assembly requirements. For example, the number and size of the clamping groove portions 24' can be adjusted according to the panel size and the internal space. In some embodiments, only a part of the carrier frame 18' extends to the side of the backplane 16. For example, only two sides of the carrier frame 18' extend to form the clamping groove portions 24'. In some embodiments, not only two sides of the carrier frame 18' extend to the side of the backplane 16, but only two sides form the side wall B' and the clamping groove portions 24', but it is not limited thereto.

[0028] In some embodiments, the clamping groove portion 24' of the carrier frame 18' has as Figure 5In the guiding structure of the guiding piece portion 25 in it, the hook piece portion 26 of the covering strip 20 can be inserted along the guiding structure into the clamping groove portion 24' and turned into a vertical direction, so that the covering piece portion 28 covers the clamping groove portion 24' and the folded-back plate portion 22 of the flexible circuit board 14, and the covering piece portion 28 substantially abuts against the side wall B of the back plate 16. As described above, the guiding piece portion is formed by extending the clamping groove portion 24', the sizes of the clamping groove portion 24' and the covering strip 20, the position where the carrying frame 18' abuts against the folded-back plate portion 22 and protrudes outwardly on the back surface S to form a groove structure 30, the groove structure 30 can accommodate the folded-back plate portion 22 and has a through hole 17 and other related designs, all of which are the same as those in the foregoing embodiments.

[0029] In summary, in the display device structure of the present invention, the covering strip is not an externally covered casing. During assembly, the covering strip can be inserted and buckled into the clamping groove portion formed by bending the side wall of the back plate, and then can be stably installed on the back plate. The display device structure of the present invention can omit the middle frame required for installing the casing in the prior art, and the clamping groove portion, the side wall and the back plate or the carrying frame are integrally formed. Therefore, it can meet the requirements of the thinness and narrow lower frame of the display device, and the process of assembling the covering strip is simpler than the traditional alignment and locking structure, which can avoid the deviation caused by manual alignment, is beneficial to simplifying the assembly or maintenance process, and reducing the mass production defect rate. In addition, the display device of the present invention has a plurality of circuit boards arranged in upper and lower layers, which can reduce the area occupied by a traditional single circuit board, and the circuit boards are separated by heat dissipation partitions to form a heat dissipation channel. When any one of the circuit boards fails, the circuit boards do not need to be replaced all at once to complete the repair, effectively reducing the repair cost.

[0030] The above description is only the preferred embodiment of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims

1. An organic light-emitting diode display device, characterized in that, Comprising: An organic light-emitting diode panel module having a display screen area and a non-display screen structure on the front surface thereof; A flexible circuit board electrically connected to the lower part of the organic light-emitting diode panel module and bent backward to form at least one folded plate portion attached to a back surface of the organic light-emitting diode panel module; A carrier frame with the organic light-emitting diode panel module stacked in front of the carrier frame; A back plate with the carrier frame stacked in front of the back plate. The back plate extends to a bottom side of the organic light-emitting diode display device and is bent to form a side wall. The side wall covers the organic light-emitting diode panel module, the flexible circuit board and the carrier frame at the bottom side, and at least a part of the side wall extends and is bent upward multiple times to form at least one clamping groove portion. At least one clamping groove space is formed between the at least one clamping groove portion and the back plate. The back plate, the side wall and the at least one clamping groove portion are integrally formed; A first circuit board located at the rear side of the back plate. At least one through hole is formed between the back plate and the carrier frame, and at least one connecting line passes through the at least one through hole to connect the first circuit board and the folded plate portion; and A covering strip having at least one hook portion and a covering portion. The at least one hook portion extends and is bent from the covering portion. The at least one hook portion is inserted into the at least one clamping groove space, and the clamping groove portion enters between the at least one hook portion and the covering portion, so that the covering strip is fixed on the side wall of the back plate, and the covering portion covers the flexible circuit board and the non-display screen structure of the organic light-emitting diode panel module.

2. The organic light-emitting diode display device according to claim 1, wherein The display device further comprises at least one partition and a second circuit board. The second circuit board is located behind the first circuit board. The partition is disposed between the first circuit board and the second circuit board, and the first circuit board is electrically connected to the second circuit board.

3. The organic light-emitting diode display device according to claim 1, characterized in that, The carrier frame protrudes backward to form a first groove structure corresponding to the position where the folded plate portion is attached to the organic light-emitting diode panel module. The back plate protrudes backward to form a second groove structure covering the first groove structure. The at least one through hole is formed on the first groove structure and the second groove structure, and the folded plate portion is located within the at least one through hole.

4. The organic light-emitting diode display device according to claim 1, characterized in that, The carrier frame has at least one convex structure which is misaligned with the flexible circuit board and abuts against the bottom side of the organic light-emitting diode panel module.

5. An organic light emitting diode display device, characterized in that, Comprising: An organic light-emitting diode panel module having a display screen area and a non-display screen structure on the front surface thereof; A flexible circuit board electrically connected to the lower part of the organic light-emitting diode panel module and bent backward to form at least one folded plate portion and attached to a back surface of the organic light-emitting diode panel module; A carrier frame with the organic light-emitting diode panel module stacked in front of the carrier frame; A backplane, the carrier frame is stacked in front of the backplane, the backplane extends to a bottom side of the organic light emitting diode display device and is bent to form a side wall, and the side wall covers the organic light emitting diode panel module, the flexible circuit board and the carrier frame at the bottom side; A first circuit board, located at the rear side of the backplane, wherein the backplane and the carrier frame form at least one through hole, and at least one connecting line passes through the at least one through hole to connect the first circuit board and the folded-back plate portion; and A covering strip, having at least one hook portion and a covering portion, the at least one hook portion is formed by extending and bending from the covering portion; Wherein the carrier frame extends to the side wall, and at least a part of the carrier frame is bent upward from the side wall to form at least one clamping groove portion, and at least one clamping groove space is formed between the at least one clamping groove portion and the carrier frame. The at least one clamping groove portion and the carrier frame are integrally formed. The at least one hook portion of the covering strip is inserted into the at least one clamping groove space, and the at least one clamping groove portion enters between the at least one hook portion and the covering portion, so that the covering strip is fixed on the carrier frame, and the covering portion covers the non-display screen structure of the flexible circuit board and the organic light emitting diode panel module.

6. The organic light-emitting diode display device according to claim 5, wherein, The display device further includes at least one partition board and a second circuit board, the second circuit board is located behind the first circuit board, the partition board is disposed between the first circuit board and the second circuit board, and the first circuit board is electrically connected to the second circuit board.

7. The organic light emitting diode display device according to claim 5, characterized in that, The carrier frame protrudes backward to form a first groove structure, the first groove structure corresponds to the position where the folded-back plate portion is attached to the organic light emitting diode panel module, the backplane protrudes backward to form a second groove structure, and the second groove structure accommodates the first groove structure and the flexible circuit board in the first groove structure. The at least one through hole is formed in the first groove structure and the second groove structure.

8. The organic light-emitting diode display device according to claim 5, characterized in that, The carrier frame has at least one convex structure, the at least one convex structure is misaligned with the flexible circuit board and abuts against the bottom side of the organic light emitting diode panel module.

9. An organic light emitting diode display device, characterized in that, Comprising: An organic light emitting diode panel module, the front of the organic light emitting diode panel module has a display screen area and a non-display screen structure; A flexible circuit board, the flexible circuit board is electrically connected below the organic light emitting diode panel module and is bent backward to form at least one folded-back plate portion attached to a back surface of the organic light emitting diode panel module; A carrier frame, the organic light emitting diode panel module is stacked in front of the carrier frame; A backplane, the carrier frame is stacked in front of the backplane, the backplane extends to a bottom side of the organic light emitting diode display device and is bent to form a side wall, and the side wall covers the organic light emitting diode panel module, the flexible circuit board and the carrier frame at the bottom side; A first circuit board, located at the rear side of the backplane, wherein the backplane and the carrier frame form at least one through hole, and at least one connecting line passes through the at least one through hole to connect the first circuit board and the folded-back plate portion; A partition board, located behind the first circuit board; A second circuit board, which is located behind the first circuit board, with a partition disposed between the first circuit board and the second circuit board, and the first circuit board is electrically connected to the second circuit board; and A covering strip having at least one hook piece portion and a covering piece portion, with the at least one hook piece portion fixed to at least one clamping groove space under the organic light-emitting diode panel module in an inserting and buckling manner, such that the covering piece portion covers the non-display screen structure of the flexible circuit board and the organic light-emitting diode panel module.

10. The organic light emitting diode display device according to claim 9, wherein The carrier frame protrudes backward to form a first groove structure, the first groove structure corresponding to the position where the folding portion is attached to the organic light-emitting diode panel module, the back plate protrudes backward to form a second groove structure, the second groove structure accommodating the flexible circuit board in the first groove structure and the first groove structure, and the at least one through hole is formed in the first groove structure and the second groove structure.

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