Display device and spliced ​​display device

Abstract

The present disclosure provides a display device and a spliced ​​display device. The display device includes: a display panel; a backlight module, which is located on the light incident side of the display panel and includes a frame and a light guide structure, wherein the frame is provided with a first supporting surface and a second supporting surface on the side facing the display panel, and the second supporting surface is located on the side of the first supporting surface away from the display panel; the first supporting surface is bonded to the backlight surface of the display panel, and the second supporting surface cooperates with the light guide structure. The present disclosure can realize the assembly of the display panel and the backlight module.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a display device and a spliced ​​display device. Background Art

[0002] With the development of science and technology, the application of spliced ​​display devices is becoming more and more extensive. Spliced ​​display devices are usually spliced ​​together by multiple independent display devices, each of which includes a display panel and a backlight module. The display panel and the backlight module are difficult to assemble. Summary of the invention

[0003] The purpose of the present disclosure is to provide a display device and a spliced ​​display device, which can realize the assembly of a display panel and a backlight module.

[0004] According to one aspect of the present disclosure, there is provided a display device, comprising:

[0005] Display panel;

[0006] A backlight module is located on the light incident side of the display panel and includes a frame and a light guide structure. The frame is provided with a first supporting surface and a second supporting surface on the side facing the display panel, and the second supporting surface is located on the side of the first supporting surface away from the display panel; the first supporting surface is bonded to the backlight surface of the display panel, and the second supporting surface cooperates with the light guide structure.

[0007] Furthermore, the frame includes:

[0008] Back panel;

[0009] The middle frame includes a fixing portion and a supporting portion, wherein the first supporting surface and the second supporting surface are located at one end of the supporting portion; the other end of the supporting portion extends away from the display panel and contacts the back plate; the fixing portion is located outside the supporting portion, one end of the fixing portion is fixed to the back plate, and the other end is connected between the two ends of the supporting portion, and an angle is formed between the fixing portion and the supporting portion.

[0010] Furthermore, the backplane comprises:

[0011] a bottom wall, one end of the supporting portion being supported on the bottom wall;

[0012] The side wall is connected to the bottom wall, and the side wall is located between the fixing portion and the supporting portion.

[0013] Furthermore, the fixing portion is fixed to the side wall.

[0014] Furthermore, the fixing portion is fixed to an end of the side wall away from the bottom wall.

[0015] Further, the side wall includes a first wall body and a second wall body connected to each other, the second wall body is located on a side of the first wall body away from the bottom wall, and the first wall body is recessed toward the inner side of the side wall relative to the second wall body; the fixing portion is fixed to the second wall body; and the display device further includes:

[0016] A chip-on-chip film covering a portion of the side surface of the display panel;

[0017] A protection plate connected to the outer side of the first wall, and a receiving space is formed between the protection plate and the first wall;

[0018] The circuit board is located in the accommodation space and is electrically connected to the chip-on-film.

[0019] Furthermore, the fixing portion is threadedly fixed to the side wall.

[0020] Furthermore, the middle frame further includes:

[0021] The reinforcing portion is connected to one end of the supporting portion close to the bottom wall and is supported by the bottom wall.

[0022] Furthermore, the reinforcement portion is arranged on a side of the support portion facing away from the side wall.

[0023] Furthermore, one end of the support portion close to the display panel is bent toward the outside of the support portion.

[0024] Furthermore, the support portion includes a first support segment and a second support segment that are interconnected along an extension direction of the support portion, the second support segment is located on a side of the first support segment close to the display panel, the extension direction of the first support segment is perpendicular to the display panel, and the second support segment is inclined toward the outside of the support portion relative to the first support segment.

[0025] Furthermore, the fixing portion is connected to the second supporting section.

[0026] Furthermore, the inner surface of the support portion is a surface with a smooth transition.

[0027] Furthermore, the supporting portion and the fixing portion are an integrated structure.

[0028] Furthermore, the support part and the fixing part are both made of aluminum or aluminum alloy.

[0029] Furthermore, the first supporting surface is a strip-shaped surface and is parallel to a side of the display panel, and a width of the first supporting surface is 0.3 mm-2 mm.

[0030] Furthermore, the display device further includes:

[0031] A chip-on-chip film connected to the display panel and covering a portion of a side surface of the display panel;

[0032] A protective member is located outside the side surface of the display panel and connected to the frame, and an orthographic projection of the protective member on the side surface of the display panel does not overlap with an orthographic projection of the chip-on-film on the side surface of the display panel.

[0033] Furthermore, the number of the chip-on-film is multiple and they are spaced apart and distributed along a direction parallel to the side of the display panel;

[0034] There are multiple protective members, which are spaced apart in a direction parallel to the side of the display panel. The orthographic projection of any protective member on the side of the display panel does not overlap with the orthographic projection of any COF on the side of the display panel.

[0035] Furthermore, the display device further includes:

[0036] A circuit board, located outside the frame and electrically connected to the chip-on-film;

[0037] The protection plate is connected to the outer side of the frame, and a space for accommodating the circuit board is formed between the protection plate and the frame; the protection member is connected to the side of the protection plate.

[0038] Furthermore, the protective member extends integrally from the protection plate.

[0039] Furthermore, the protective member is inclined relative to the protection plate toward the display panel, and the inclination angle of the protective member is 1°-2°.

[0040] Furthermore, the protective plate includes a first plate body and a second plate body connected to each other, the second plate body is located on a side of the first plate body close to the display panel in a direction perpendicular to the display panel, and the first plate body is recessed toward the inner side of the frame relative to the second plate body; the first plate body is connected to the outer side of the frame, and a space for accommodating the circuit board is formed between the second plate body and the frame; the protective member is connected to the side of the second plate body away from the first plate body.

[0041] Furthermore, the frame includes:

[0042] The back plate has a side wall, which is perpendicular to the display panel. The protective plate is located on the outside of the side wall of the back plate. The first plate body is fixed to the side wall of the back plate. The first plate body is inclined toward the inside of the protective plate relative to the second plate body. The inclination angle of the first plate body is 1.5°-2.5°.

[0043] Further, in a direction parallel to the display panel, the display panel includes a first side and a second side opposite to each other; the display panel may include a display area and a non-display area surrounding the display area; the non-display area includes a first non-display area located on the first side of the display panel and a second non-display area located on the second side of the display panel; the sum of the width of the first non-display area and the width of the second non-display area is equal to 2 mm.

[0044] Furthermore, the first non-display area includes a binding area, the first non-display area and the second non-display area are both provided with frame glue, the width of the first non-display area is equal to 1.2 mm, and the width of the second non-display area is equal to 0.8 mm.

[0045] Furthermore, the backplane comprises:

[0046] a bottom wall, one end of the supporting portion being supported on the bottom wall;

[0047] A side wall connected to the bottom wall, wherein the side wall is located between the fixing portion and the supporting portion;

[0048] The display device further includes:

[0049] A light-emitting structure is arranged on a surface of the bottom wall facing the display panel, and the light-emitting structure includes a first light-emitting area, a second light-emitting area and a third light-emitting area along a direction parallel to the bottom wall, the second light-emitting area surrounds the first light-emitting area, the third light-emitting area surrounds the second light-emitting area, the third light-emitting area is located in an edge area of ​​the light-emitting structure, the light-emitting intensity per unit area of ​​the third light-emitting area is greater than the light-emitting intensity per unit area of ​​the first light-emitting area, and the light-emitting intensity per unit area of ​​the first light-emitting area is greater than the light-emitting intensity per unit area of ​​the second light-emitting area.

[0050] Furthermore, the light guide structure includes a diffusion plate, and the material of the diffusion plate is polystyrene.

[0051] Furthermore, a polarizer is provided on the light incident side and the light emitting side of the display panel, and a fixing glue is coated on the first supporting surface, and the first supporting surface is bonded to the polarizer located on the light incident side of the display panel through the fixing glue.

[0052] Furthermore, the display panel has a display area and a non-display area, the fixing glue is UV glue, the inner edge of the UV glue is spaced apart from the display area of ​​the display panel, and the horizontal spacing distance is 0.1mm-0.8mm; the UV glue is spaced apart from the outer edge of the display panel, and the horizontal spacing distance is 0.1mm-0.8mm.

[0053] Furthermore, the light guide structure comprises:

[0054] A diffusion plate, arranged opposite to the display panel;

[0055] The light guide strip is bonded between the diffusion plate and the second supporting surface, and fixes the edge of the diffusion plate on the second supporting surface. The light transmittance of the light guide strip is 60%-99%.

[0056] Furthermore, the light guide bar is attached to the side wall of the second supporting surface, and the distance between the light guide bar and the side wall of the second supporting surface is smaller than the distance between the edge of the diffusion plate and the side wall of the second supporting surface.

[0057] Furthermore, the light guide structure and the second supporting surface are bonded by fixing glue or hot melt glue, and the light transmittance of the fixing glue or the hot melt glue is 60%-99%.

[0058] Furthermore, the display device further includes: a light emitting structure, disposed on a side of the bottom wall facing the display panel; a reflective sheet, disposed between the bottom wall and the light emitting structure, and the reinforcing portion is pressed onto an edge region of the reflective sheet.

[0059] Furthermore, the width of the first supporting surface is 0.88 mm or 1.76 mm.

[0060] Furthermore, the display device also includes: a chip-on-chip film, connected to the display panel and covering part of the side of the display panel, an insulating organic film is provided on the side of the chip-on-chip film facing away from the display panel; a protective member, located on the outside of the side of the display panel and connected to the frame, the protective member being pressed onto the insulating organic film.

[0061] According to one aspect of the present disclosure, a spliced ​​display device is provided. The spliced ​​display device is formed by splicing a plurality of display devices. The display device is the above-mentioned display device.

[0062] The display device and spliced ​​display device disclosed herein have a backlight module including a frame and a light guide structure. The backlight module is located on the light incident side of the display panel. A first supporting surface and a second supporting surface are provided on the side of the frame facing the display panel. The second supporting surface is matched with the light guide structure, and the first supporting surface is bonded to the backlight surface of the display panel, thereby realizing the assembly of the display panel and the backlight module. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 is a schematic cross-sectional view of a display device according to an embodiment of the present disclosure.

[0064] Figure 2 yes Figure 1 Schematic diagram of the structure shown after removing the protective plate.

[0065] Figure 3 It is a schematic diagram of the coordination of the middle frame and the back plate of the display device according to the embodiment of the present disclosure.

[0066] Figure 4 4 is a schematic cross-sectional view of a display panel of a display device according to an embodiment of the present disclosure.

[0067] Figure 5 is another cross-sectional schematic diagram of the display device according to an embodiment of the present disclosure.

[0068] Figure 6 It is a force model diagram of the middle frame of the display device according to the embodiment of the present disclosure.

[0069] Figure 7 yes Figure 5 An enlarged schematic diagram of part A of the structure shown.

[0070] Figure 8 Schematic diagram of a protection plate and a flip chip film according to an embodiment of the present disclosure.

[0071] Fig. 9 is a schematic diagram of a protection plate according to an embodiment of the present disclosure.

[0072] Fig.10 Schematic diagram of the inclination angle of the first plate and the protective member according to an embodiment of the present disclosure.

[0073] Fig.11 is another schematic cross-sectional view of the display device according to the embodiment of the present disclosure.

[0074] Fig.12 Schematic diagram of a first light-emitting area, a second light-emitting area, and a third light-emitting area of ​​a display device according to an embodiment of the present disclosure.

[0075] Fig.13 Schematic diagram of a light emitting structure of a display device according to an embodiment of the present disclosure.

[0076] Fig.14 is another schematic cross-sectional view of the display device according to the embodiment of the present disclosure.

[0077] Fig.15 is a partial cross-sectional view of a display device according to an embodiment of the present disclosure.

[0078] Fig.16 yes Fig.15 Schematic diagram of the plan view of the structure shown.

[0079] Description of reference numerals: 1. display substrate; 101. display area; 102. first non-display area; 1021. binding area; 103. second non-display area; 2. light guide structure; 201. diffusion plate; 202. diffusion sheet; 203. light guide strip; 3. support portion; 301. first support segment; 302. second support segment; 4. fixing portion; 5. first support surface; 6. second support surface; 7. side wall; 701. first wall; 702. second wall; 703. 03. Third wall; 8. Bottom wall; 9. Protection plate; 901. First plate; 902. Second plate; 903. Third plate; 10. Frame glue; 11. Reinforcement; 12. Circuit board; 13. Chip-on-film; 14. Protective piece; 15. First protection glue; 16. Second protection glue; 17. Light-emitting structure; 1701. First light-emitting area; 1702. Second light-emitting area; 1703. Third light-emitting area; 18. Light source; 100. Middle frame; 200. Back panel. DETAILED DESCRIPTION

[0080] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0081] The terms used in the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The words "first", "second" and similar words used in the present disclosure specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limit, but indicate that there is at least one. "Multiple" or "several" means two and more than two. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. As used in this disclosure and the appended claims, the singular forms "a", "an", "said", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

[0082] The present disclosure provides a display device. Figure 1 and Figure 2 As shown, the display device may include a display panel and a backlight module, wherein:

[0083] The backlight module is located on the light incident side of the display panel and includes a frame and a light guide structure 2. Figure 3 As shown, the side of the frame facing the display panel is provided with a first support surface 5 and a second support surface 6. The second support surface 6 is located on the side of the first support surface 5 away from the display panel. The first support surface 5 is bonded to the backlight surface of the display panel, and the second support surface 6 cooperates with the light guide structure 2.

[0084] The display device disclosed in the present invention has a backlight module including a frame and a light guide structure 2. The backlight module is located on the light incident side of the display panel. A first supporting surface 5 and a second supporting surface 6 are provided on the side of the frame facing the display panel. The second supporting surface 6 is matched with the light guide structure 2, and the first supporting surface 5 is bonded to the backlight surface of the display panel, thereby realizing the assembly of the display panel and the backlight module.

[0085] The following describes in detail the various parts of the display device according to the embodiment of the present disclosure:

[0086] The display panel may be a liquid crystal display panel, which may include: an array substrate and a color filter substrate arranged in a cell, and a liquid crystal layer located between the array substrate and the color filter substrate. In a direction parallel to the display panel, the display panel includes a first side and a second side opposite to each other. Figure 4 As shown, the display panel may include a display area 101 and a non-display area surrounding the display area 101. The non-display area includes a first non-display area 102 located on a first side of the display panel and a second non-display area 103 located on a second side of the display panel. The first non-display area 102 may include a binding area 1021. Both the first non-display area 102 and the second non-display area 103 may be provided with a frame glue 10. The sum of the width of the first non-display area 102 and the width of the second non-display area 103 may be equal to 2 mm. The width L1 of the first non-display area 102 may be equal to 1.2 mm, and the width L2 of the second non-display area 103 may be equal to 0.8 mm. In addition, a polarizer is provided on the light incident side and the light emitting side of the display panel.

[0087] like Figure 5 As shown, the light guide structure 2 may include a diffuser plate 201. The diffuser plate 201 may be arranged opposite to the display panel. The material of the diffuser plate 201 may be polystyrene (PS), but the present disclosure does not limit this. The light guide structure 2 may include a diffuser sheet 202. The diffuser sheet 202 may be located on a side of the diffuser plate 201 facing the display panel.

[0088] The frame is provided with a first supporting surface 5 and a second supporting surface 6 on the side facing the display panel. The first supporting surface 5 may be parallel to the display panel. The first supporting surface 5 cooperates with the backlight surface of the display panel to connect the frame to the display panel. Specifically, a fixing glue is coated on the first supporting surface 5, and the first supporting surface 5 is bonded to the above-mentioned polarizer located on the light incident side of the display panel through the fixing glue. The fixing glue on the first supporting surface 5 is bonded to the edge area of ​​the polarizer. The first supporting surface 5 may be a strip-shaped surface and be parallel to the side of the display panel. Figure 3 As shown, the width L3 of the first support surface 5 can be 0.3mm-2mm. Preferably, the width L3 of the first support surface 5 is 0.88mm or 1.76mm. The second support surface 6 can be parallel to the first support surface 5. The second support surface 6 cooperates with the light guide structure 2, that is, the second support surface 6 supports the light guide structure 2. Taking the light guide structure 2 including a diffuser plate 201 and a diffuser sheet 202 as an example, the second support surface 6 is used to support the diffuser plate 201. In one embodiment, the diffuser sheet 202 can be bonded to the second support surface 6 by a fixing glue or a hot melt glue. The light transmittance of the fixing glue or the hot melt glue can be 60%-99%. The above-mentioned fixing glue can be a UV (ultraviolet) glue. In another embodiment, Figure 5As shown, the above-mentioned light guide structure 2 may also include a light guide bar 203 located between the second support surface 6 and the diffuser plate 201. The two opposite surfaces of the light guide bar 203 may be provided with an adhesive layer, and the adhesive layer on one surface of the light guide bar 203 is bonded to the second support surface 6, and the adhesive layer on the other surface of the light guide bar 203 is bonded to the diffuser plate 201, so that the light guide bar 203 is bonded between the diffuser plate 201 and the second support surface 6, and the edge of the diffuser plate 201 is fixed on the second support surface 6. The light transmittance of the light guide bar may be 60%-99%, but the present disclosure does not make any special restrictions on this. The second support surface 6 is located on the side of the first support surface 5 away from the display panel, that is, the first support surface 5 is located between the second support surface 6 and the display panel, that is, the distance between the first support surface 5 and the display panel is less than the distance between the second support surface 6 and the display panel. Among them, the distance between the first support surface 5 and the second support surface 6 in the direction perpendicular to the display panel needs to be greater than or equal to the thickness of the light guide structure 2. The frame may also be provided with a supporting side surface connecting the first supporting surface 5 and the second supporting surface 6. Taking the first supporting surface 5 and the second supporting surface 6 as an example, the supporting side surface may be perpendicular to the second supporting surface 6, thereby forming a step structure on the frame, and the step surface of the step structure is the second supporting surface 6 and the supporting side surface. The light guide strip 203 may be bonded to the supporting side surface by an adhesive layer, and the distance between the light guide strip 203 and the supporting side surface is smaller than the distance between the edge of the diffuser plate 201 and the supporting side surface.

[0089] like Figure 3 As shown, the frame may include a back plate 200 and a middle frame 100. The back plate 200 may include a bottom wall 8 and a side wall 7. The bottom wall 8 may be arranged opposite to the above-mentioned display panel and located on the side of the light guide structure 2 facing away from the display panel. The side wall 7 is connected to the side of the bottom wall 8 facing the display panel. The side wall 7 may include a first wall body 701 and a second wall body 702 connected to each other. The second wall body 702 is located on the side of the first wall body 701 away from the bottom wall 8, and the first wall body 701 is recessed toward the inner side of the side wall 7 relative to the second wall body 702, that is, the second wall body 702 is located outside the first wall body 701. The side wall 7 may also include a third wall body 703 connecting the first wall body 701 and the second wall body 702. The first wall body 701 and the second wall body 702 may both be perpendicular to the bottom wall 8. The third wall body 703 may be parallel to the bottom wall 8, but the present disclosure does not make any special restrictions on this.

[0090] The middle frame 100 can be fixed to the back plate 200. Figure 3 , Fig.15 as well as Fig.16As shown, the middle frame 100 may include a supporting portion 3 and a fixing portion 4. The above-mentioned first supporting surface 5 and second supporting surface 6 are both located at one end of the supporting portion 3, that is, the surface of one end of the supporting portion 3 facing the display panel includes the first supporting surface 5 and the second supporting surface 6, and the other end of the supporting portion 3 extends away from the display panel and contacts the back plate 200. Among them, the end of the supporting portion 3 away from the display panel contacts the bottom wall 8 of the back plate 200, so that the supporting portion 3 is supported on the bottom wall 8 of the back plate 200. The material of the supporting portion 3 may be aluminum or aluminum alloy, but the present disclosure does not specifically limit this. The end of the supporting portion 3 close to the display panel is bent toward the outside of the supporting portion 3. Specifically, as Figure 3 As shown, the support portion 3 includes a first support segment 301 and a second support segment 302 connected to each other along the extension direction of the support portion 3. The second support segment 302 is located on a side of the first support segment 301 close to the display panel. The extension direction of the first support segment 301 is perpendicular to the display panel. The second support segment 302 is inclined toward the outside of the support portion 3 relative to the first support segment 301. The inner surface of the support portion 3 can be a smooth transition surface to improve the reflective effect of the inner surface of the support portion 3. Fig.14 As shown, the inner surface of the first support segment 301 is a flat surface, and the length L of the flat surface of the first support segment 301 in the direction perpendicular to the display panel is 14 The inner surface of the second support segment 302 includes a straight surface and a curved surface connected to each other, and the length L of the straight surface of the second support segment 302 in the extension direction of the second support segment 302 is 15 It can be 8mm; the curvature radius R of the arc surface of the second supporting segment 302 can be 10mm.

[0091] The fixing portion 4 may be located outside the supporting portion 3. The side wall 7 of the back plate 200 may be located between the supporting portion 3 and the fixing portion 4. One end of the fixing portion 4 may be connected between the two ends of the supporting portion 3, and the other end may be fixed to the back plate 200, so that an angle is formed between the fixing portion 4 and the supporting portion 3. One end of the fixing portion 4 may be connected to the second supporting section 302 of the supporting portion 3, and the other end of the fixing portion 4 may be fixed to the side wall 7 of the back plate 200. The fixing portion 4 may be fixed to one end of the side wall 7 of the back plate 200 away from the bottom wall 8, that is, the fixing portion 4 may be fixed to the upper area of ​​the side wall 7 of the back plate 200. Specifically, the fixing portion 4 may be fixed to the second wall body 702 of the side wall 7 of the back plate 200. The fixing portion 4 may be detachably connected to the side wall 7 of the back plate 200, such as a threaded connection, but the embodiments of the present disclosure are not limited thereto. In addition, the fixing portion 4 may be a plate-like structure and parallel to the second wall body 702 of the side wall 7 of the back plate 200. The material of the fixing part 4 can be aluminum or aluminum alloy, but the present disclosure is not limited to this. The material of the fixing part 4 can be the same as the material of the support part 3, of course, it can also be different. The fixing part 4 can be detachably connected to the support part 3, of course, the fixing part 4 can also be non-detachably connected to the support part 3, but the present disclosure is not limited to this, and the fixing part 4 can be an integrated structure with the support part 3. When multiple display devices of the present disclosure are spliced ​​into a spliced ​​display device, such as Figure 6 As shown, the end of the support portion 3 close to the display panel will be subjected to an extrusion force F1 toward the inner side of the support portion 3 in a direction parallel to the display panel. Since the fixing portion 4 of the present invention is fixed to the back plate 200, the end of the support portion 3 away from the display panel is supported on the back plate 200, and an angle is formed between the fixing portion 4 and the support portion 3, the back plate 200 can generate a supporting force F2 on the support portion 3, thereby improving the anti-deformation ability of the display device.

[0092] In addition, if Figure 3 As shown, the middle frame 100 of the embodiment of the present disclosure may further include a reinforcing portion 11. The reinforcing portion 11 may be connected to one end of the support portion 3 close to the bottom wall 8 of the back plate 200, and supported on the bottom wall 8 of the back plate 200. Among them, the reinforcing portion 11 may be connected to one end of the first support segment 301 away from the second support segment 302, so as to reduce the pressure between the first support segment 301 and the bottom wall 8 of the back plate 200. Specifically, the reinforcing portion 11 may be provided on the side of the support portion 3 facing away from the side wall 7 of the back plate 200. The reinforcing portion 11 may be a plate-like structure, parallel to the bottom wall 8 of the back plate 200, and attached to the bottom wall 8 of the back plate 200.

[0093] like Figure 5 and Figure 8As shown, the display device of the present disclosure may also include a circuit board 12 and a chip-on-film 13 (COF). The chip-on-film 13 is connected to the above-mentioned binding area 1021, and the covering film covers a partial area of ​​the side of the display panel. Among them, the chip-on-film 13 can cover a partial area of ​​the side of the first side of the display panel. Of course, the chip-on-film 13 can also cover a partial area of ​​the side of the other sides of the display panel. The circuit board 12 can be located on the outside of the frame and electrically connected to the chip-on-film 13. The circuit board 12 can be located on the outside of the side wall 7 of the above-mentioned back plate 200, and is arranged opposite to the first wall 701 of the side wall 7 of the back plate 200. Of course, as Figure 1 As shown, the display device of the present disclosure may further include a protective plate 9. The protective plate 9 may be connected to the outer side of the first wall 701, and a storage space is formed between the protective plate 9 and the first wall 701, and the above-mentioned circuit board 12 is located in the storage space. Among them, the protective plate 9 may be threadedly connected to the first wall 701, but the embodiment of the present disclosure does not specifically limit this. The protective plate 9 may include a first plate 901 and a second plate 902 connected to each other. The second plate 902 may be located on a side of the first plate 901 close to the display panel, and the first plate 901 is recessed toward the inner side of the frame relative to the second plate 902, that is, the second plate 902 is located on the outer side of the first plate 901. The protective plate 9 may also include a third plate 903 connecting the first plate 901 and the second plate 902. The third plate 903 may be parallel to the bottom wall 8, but the present disclosure does not specifically limit this. The first plate 901 can be threadedly connected to the first wall 701, and the above-mentioned accommodation space is formed between the second plate 902 and the first wall 701. Fig. 9 and Fig.10 As shown, the first plate body 901 can be inclined toward the inner side of the protection plate 9 relative to the second plate body 902, and the inclination angle β1 of the first plate body 901 is 1.5°-2.5°, for example, 1.5°, 1.8°, 2°, 2.5°, etc. Fig. 9 The sum of β3 and β1 is equal to 90°.

[0094] like Figure 7 and Figure 8As shown, the display device of the present disclosure may further include a protective member 14. The protective member 14 is located on the outside of the side of the display panel. When multiple display devices of the present disclosure are spliced ​​into a spliced ​​display device, the protective member 14 provided can reduce the damage to the side of the display panel during the splicing process. In one embodiment, the protective member 14 may be located on the outside of the side of the display panel covered with the chip-on-cover film 13, and the orthographic projection of the protective member 14 on the side of the display panel does not overlap with the orthographic projection of the chip-on-cover film 13 on the side of the display panel, thereby preventing the protective member 14 from squeezing the chip-on-cover film 13. The number of chip-on-cover films 13 covering one side of the display panel may be multiple, and the multiple chip-on-cover films 13 are spaced apart in a direction parallel to the side of the display panel. The number of the protective members 14 is also multiple, and the multiple protective members 14 are spaced apart in a direction parallel to the side of the display panel, and the orthographic projection of any protective member 14 on the side of the display panel does not overlap with the orthographic projection of any chip-on-cover film 13 on the side of the display panel. In another embodiment, an insulating organic film is provided on the side of the chip-on-chip film 13 facing away from the display panel, the orthographic projection of the protective member 14 on the side of the display panel coincides with the orthographic projection of the chip-on-chip film 13 on the side of the display panel, and the protective member 14 is pressed on the insulating organic film, which can improve the stability of the chip-on-chip film 13.

[0095] The protective member 14 may be connected to the frame of the display panel. Fig. 9 and Fig.10 As shown, the protective member 14 can be connected to the side of the protective plate 9. Taking the protective plate 9 including the first plate body 901 and the second plate body 902 as an example, the protective member 14 is connected to the side of the second plate body 902 away from the first plate body 901. The protective member 14 can be extended integrally from the protective plate 9, and the protective member 14 is inclined toward the display panel relative to the protective plate 9. With such a configuration, when the protective plate 9 is fixed to the outer side of the first wall body 701 under the action of an external force, the protective member 14 will be subjected to a force on the side facing away from the display panel. Since the protective member 14 is inclined toward the display panel relative to the protective plate 9, the gap between the protective member 14 and the side of the display panel can be prevented from increasing, thereby avoiding affecting the display effect. Among them, the inclination angle β2 of the protective member 14 can be 1°-2°, for example, 1°, 1.5°, 2°, etc.

[0096] also, Fig.11 The structure shown is Figure 7 The structures shown are located on opposite sides of the display panel. Figure 7 , the width of the first supporting surface 5 is equal to 0.8 mm, that is, the width of the bonding area between the first supporting surface 5 and the display panel is equal to 0.8 mm, the thickness L4 of the protection plate 9 is equal to 0.4 mm, the thickness L5 of the first protective glue 15 is equal to 0.1 mm, and the thickness L6 of the second protective glue 16 is equal to 0.05 mm, Figure 7 The first supporting surface 5 in the display panel does not overlap with the display area 101, and Figure 7 The non-display area of ​​the structure shown may be the first non-display area 102 described above. The first protective adhesive 15 and / or the second protective adhesive 16 may be an appearance adhesive tape. Fig.11 In the embodiment, the width L9 of the first supporting surface 5 is equal to 1 mm, that is, the width of the bonding area between the first supporting surface 5 and the display panel is equal to 1 mm. Fig.11 The non-display area in the structure shown may be the second non-display area 103 mentioned above. Fig.11 The first supporting surface 5 partially overlaps with the second non-display area 103 , and the width L8 of the overlapping area is equal to 0.2 mm. The thickness L6 of the second protective glue 16 is equal to 0.05 mm.

[0097] like Fig.12 As shown, the display device of the present disclosure may further include a light-emitting structure 17. The light-emitting structure 17 may be disposed on the surface of the bottom wall 8 facing the display panel, and the light-emitting structure 17 includes a first light-emitting area 1701, a second light-emitting area 1702, and a third light-emitting area 1703 along a direction parallel to the bottom wall 8. The second light-emitting area 1702 surrounds the first light-emitting area 1701, and the third light-emitting area 1703 surrounds the second light-emitting area 1702, and the third light-emitting area 1703 is located at an edge area of ​​the light-emitting structure 17. The light-emitting intensity per unit area of ​​the third light-emitting area 1703 is greater than the light-emitting intensity per unit area of ​​the first light-emitting area 1701, and the light-emitting intensity per unit area of ​​the first light-emitting area 1701 is greater than the light-emitting intensity per unit area of ​​the second light-emitting area 1702. Fig.13 As shown, a plurality of light sources 18 are disposed on the bottom wall 8 of the back plate 200, and the plurality of light sources 18 constitute a plurality of light source columns, and the plurality of light source columns are symmetrically distributed. The distance between adjacent light source columns in the first light-emitting area 1701 is smaller than the distance between adjacent light source columns in the second light-emitting area 1702, and the distance between adjacent light source columns in the third light-emitting area 1703 is smaller than the distance between adjacent light source columns in the first light-emitting area 1701.

[0098] Specifically, Fig.13 As shown, L 10 is the distance from the first light source array to the inner surface of the second support segment 302, L 11 is the distance from the second light source column to the first light source column, L 12 is the distance from the third light source column to the second light source column, L 13 is the distance between the fourth light source column and the third light source column. In the display device of the present disclosure, there may be a plurality of adjacent light source columns with a distance equal to L 13 .L 10 Can be equal to 18.3mm, L 11 Can be equal to 54.5mm, L 12Can be equal to 90mm, L 13 It can be equal to 74.674mm. The distance is equal to L 13 The plurality of light source columns can constitute the first light emitting area 1701, and the distance is equal to L 12 A plurality of light source columns can constitute the second light emitting area 1702, and the distance is equal to L 11 A plurality of light source columns can constitute the second light emitting area 1702. Fig.14 As shown, the inner surface of the second support segment 302 can reflect light to the area of ​​the display panel corresponding to the second light-emitting area 1702. The present disclosure makes the luminous intensity per unit area of ​​the second light-emitting area 1702 smaller than the luminous intensity per unit area of ​​the first light-emitting area 1701. That is to say, the luminous intensity per unit area of ​​the second light-emitting area 1702 set by the present disclosure is smaller, thereby avoiding excessive brightness of the display panel corresponding to the second light-emitting area 1702 and improving display uniformity. In addition, the luminous angle of each of the above-mentioned light sources 18 can be 160°. In addition, the display device of the present disclosure can also include a reflective sheet located between the bottom wall 8 and the light-emitting structure 17. The above-mentioned reinforcing portion 11 (see Figure 5 ) is supported on the edge area of ​​the reflective sheet, which can solve the problem of uneven brightness caused by the warping of the edge of the reflective sheet.

[0099] The inner edge of the UV glue coated on the first support surface 5 is spaced from the display area 101 of the display panel, with a horizontal spacing of 0.1mm-0.8mm, to prevent the UV glue from blocking the display area 101 and reducing the display brightness and uniformity of the edge display area; at the same time, the UV glue coated on the first support surface 5 is spaced from the outer edge of the display panel, with a horizontal spacing of 0.1mm-0.8mm, which can prevent the UV glue from overflowing and fixing the chip-on-film 13. The light guide strip 203 is attached to the side wall of the second support surface 6, and the distance between the light guide strip 203 and the side wall of the second support surface 6 is smaller than the distance between the edge of the diffuser plate 201 and the side wall of the second support surface 6. The side wall of the second support surface 6 is the above-mentioned support side surface.

[0100] The present disclosure also provides a spliced ​​display device. The spliced ​​display device can be formed by splicing a plurality of display devices in the above embodiments. Since the display device included in the spliced ​​display device in the present disclosure is the same as the display device in the above display device embodiment, it has the same beneficial effects, and the present disclosure will not repeat them here.

[0101] The above is only a preferred embodiment of the present disclosure and does not limit the present disclosure in any form. Although the present disclosure has been disclosed as a preferred embodiment as above, it is not used to limit the present disclosure. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present disclosure. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present disclosure without departing from the content of the technical solution of the present disclosure are still within the scope of the technical solution of the present disclosure.

Claims

1. A display device, characterized in that: include: Display panel; A backlight module, located at the light incident side of the display panel, and comprising a frame and a light guide structure, wherein a first supporting surface and a second supporting surface are provided on a side of the frame facing the display panel, and the second supporting surface is located on a side of the first supporting surface away from the display panel; the first supporting surface is bonded to the backlight surface of the display panel, and the second supporting surface cooperates with the light guide structure; The frame includes: Back panel; The middle frame comprises a fixing portion and a supporting portion, wherein the first supporting surface and the second supporting surface are located at one end of the supporting portion; the other end of the supporting portion extends away from the display panel and contacts the back plate; the fixing portion is located outside the supporting portion, one end of the fixing portion is fixed to the back plate, and the other end is connected between two ends of the supporting portion, and an angle is formed between the fixing portion and the supporting portion; The support portion includes a first support segment and a second support segment connected to each other along an extension direction of the support portion, the second support segment is located at a side of the first support segment close to the display panel, the extension direction of the first support segment is perpendicular to the display panel, and the second support segment is inclined toward the outer side of the support portion relative to the first support segment; The back plate comprises: a bottom wall, one end of the supporting portion being supported on the bottom wall; A side wall connected to the bottom wall, wherein the side wall is located between the fixing portion and the supporting portion; The display device further includes: a light-emitting structure, arranged on a surface of the bottom wall facing the display panel, wherein the light-emitting structure comprises a first light-emitting area, a second light-emitting area and a third light-emitting area along a direction parallel to the bottom wall, wherein the second light-emitting area surrounds the first light-emitting area, the third light-emitting area surrounds the second light-emitting area, the third light-emitting area is located at an edge region of the light-emitting structure, the light-emitting intensity per unit area of ​​the third light-emitting area is greater than the light-emitting intensity per unit area of ​​the first light-emitting area, and the light-emitting intensity per unit area of ​​the first light-emitting area is greater than the light-emitting intensity per unit area of ​​the second light-emitting area; The inner surface of the support portion has a reflective effect; the inner surface of the second support segment can reflect light to the area of ​​the display panel corresponding to the second light-emitting area.

2. The display device according to claim 1, characterized in that The fixing portion is fixed to the side wall.

3. The display device according to claim 2, characterized in that: The fixing portion is fixed to an end of the side wall away from the bottom wall.

4. The display device according to claim 2, characterized in that: The side wall comprises a first wall body and a second wall body connected to each other, the second wall body is located at a side of the first wall body away from the bottom wall, and the first wall body is recessed toward the inner side of the side wall relative to the second wall body; The fixing portion is fixed to the second wall; and the display device further includes: A chip-on-chip film covering a portion of the side surface of the display panel; A protection plate connected to the outer side of the first wall, and a receiving space is formed between the protection plate and the first wall; The circuit board is located in the accommodation space and is electrically connected to the chip-on-film.

5. The display device according to claim 2, characterized in that: The fixing portion is threadedly fixed to the side wall.

6. The display device according to claim 1, characterized in that: The middle frame also includes: The reinforcing portion is connected to one end of the supporting portion close to the bottom wall and is supported by the bottom wall.

7. The display device according to claim 6, characterized in that: The reinforcing portion is arranged on a side of the supporting portion facing away from the side wall.

8. The display device according to claim 1, characterized in that: One end of the support portion close to the display panel is bent toward the outer side of the support portion.

9. The display device according to claim 1, characterized in that: The fixing portion is connected to the second supporting section.

10. The display device according to claim 1, characterized in that The inner surface of the support portion is a surface with a smooth transition.

11. The display device according to claim 1, characterized in that: The supporting part and the fixing part are an integrated structure.

12. The display device according to claim 11, characterized in that: The supporting part and the fixing part are both made of aluminum or aluminum alloy.

13. The display device according to claim 1, characterized in that: The first supporting surface is a strip-shaped surface and is parallel to the side of the display panel. The width of the first supporting surface is 0.3 mm-2 mm.

14. The display device according to claim 1, characterized in that The display device further includes: A chip-on-chip film connected to the display panel and covering a portion of a side surface of the display panel; A protective member is located outside the side surface of the display panel and connected to the frame, and an orthographic projection of the protective member on the side surface of the display panel does not overlap with an orthographic projection of the chip-on-film on the side surface of the display panel.

15. The display device according to claim 14, characterized in that: There are a plurality of chip-on-films, which are spaced apart and distributed along a direction parallel to the side of the display panel; There are multiple protective members, which are spaced apart in a direction parallel to the side of the display panel. The orthographic projection of any protective member on the side of the display panel does not overlap with the orthographic projection of any COF on the side of the display panel.

16. The display device according to claim 14, characterized in that: The display device further includes: A circuit board, located outside the frame and electrically connected to the chip-on-film; The protection plate is connected to the outer side of the frame, and a space for accommodating the circuit board is formed between the protection plate and the frame; the protection member is connected to the side of the protection plate.

17. The display device according to claim 16, characterized in that: The guard member extends integrally from the protection plate.

18. The display device according to claim 16, characterized in that: The protective member is inclined relative to the protection plate toward the display panel, and the inclination angle of the protective member is 1°-2°.

19. The display device according to claim 16, characterized in that: The protective plate includes a first plate body and a second plate body connected to each other. The second plate body is located on a side of the first plate body close to the display panel in a direction perpendicular to the display panel, and the first plate body is recessed toward the inner side of the frame relative to the second plate body; the first plate body is connected to the outer side of the frame, and a space for accommodating the circuit board is formed between the second plate body and the frame; the protective member is connected to the side of the second plate body away from the first plate body.

20. The display device according to claim 19, characterized in that The side wall is perpendicular to the display panel, the protection plate is located outside the side wall of the back plate, the first plate body is fixed to the side wall of the back plate, the first plate body is inclined toward the inner side of the protection plate relative to the second plate body, and the inclination angle of the first plate body is 1.5o-2.5o.

21. The display device according to claim 1, characterized in that In a direction parallel to the display panel, the display panel includes a first side and a second side opposite to each other; the display panel includes a display area and a non-display area surrounding the display area; the non-display area includes a first non-display area located on the first side of the display panel and a second non-display area located on the second side of the display panel; the sum of the width of the first non-display area and the width of the second non-display area is equal to 2 mm.

22. The display device according to claim 21, characterized in that The first non-display area includes a binding area. The first non-display area and the second non-display area are both provided with frame glue. The width of the first non-display area is equal to 1.2 mm, and the width of the second non-display area is equal to 0.8 mm.

23. The display device according to claim 1, characterized in that The light guide structure comprises a diffusion plate, and the material of the diffusion plate is polystyrene.

24. The display device according to claim 1, characterized in that A polarizer is provided on the light incident side and the light emitting side of the display panel, and a fixing glue is coated on the first supporting surface. The first supporting surface is bonded to the polarizer on the light incident side of the display panel through the fixing glue.

25. The display device according to claim 24, characterized in that: The display panel has a display area and a non-display area, the fixing glue is UV glue, the inner edge of the UV glue is spaced apart from the display area of ​​the display panel, and the horizontal spacing distance is 0.1mm-0.8mm; the UV glue is spaced apart from the outer edge of the display panel, and the horizontal spacing distance is 0.1mm-0.8mm.

26. The display device according to claim 1, characterized in that The light guide structure comprises: A diffusion plate, arranged opposite to the display panel; The light guide strip is bonded between the diffusion plate and the second supporting surface, and fixes the edge of the diffusion plate on the second supporting surface. The light transmittance of the light guide strip is 60%-99%.

27. The display device according to claim 26, characterized in that: The light guide bar is attached to the side wall of the second supporting surface, and the distance between the light guide bar and the side wall of the second supporting surface is smaller than the distance between the edge of the diffusion plate and the side wall of the second supporting surface.

28. The display device according to claim 1, characterized in that The light guide structure is bonded to the second supporting surface by means of a fixing glue or a hot melt glue, and the light transmittance of the fixing glue or the hot melt glue is 60%-99%.

29. The display device according to claim 6, characterized in that The display device further includes: A reflective sheet is arranged between the bottom wall and the light-emitting structure, and the reinforcing portion is pressed on an edge area of ​​the reflective sheet.

30. The display device according to claim 13, characterized in that: The width of the first supporting surface is 0.88 mm or 1.76 mm.

31. The display device according to claim 1, characterized in that The display device further includes: A chip-on-chip film is connected to the display panel and covers a portion of a side surface of the display panel, and an insulating organic film is provided on a side of the chip-on-chip film that faces away from the display panel; The protective member is located outside the side of the display panel and connected to the frame. The protective member is pressed on the insulating organic film.

32. A splicing display device, characterized in that: The spliced ​​display device is formed by splicing a plurality of display devices, and the display device is the display device according to any one of claims 1 to 31.

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