Display module with carrier film and backlight module

Abstract

The invention provides a display module and a backlight module. The display module and the backlight module comprise a back plate, a bearing film and a lamp plate. The bearing film is arranged on the back plate and is connected to at least part of the periphery of the back plate through the first connecting unit; wherein the elastic coefficient of the bearing film is smaller than that of the back plate. The lamp panel is arranged on the bearing film and connected to the bearing face, facing the lamp panel, of the bearing film through the second connecting unit. Due to the arrangement of the bearing film, when the display module or the backlight module needs to be reworked or recycled, the lamp panel and the back panel can be easily and rapidly disassembled and separated, and the lamp panel and the back panel are not prone to being damaged. Therefore, the recycling ratio of the assembly can be improved, and the realization of circular economy is facilitated.

Description

Technical Field

[0001] The present invention relates to a display device and a backlight module; in particular, the present invention relates to an easily disassembled display device and a backlight module. Background Art

[0002] A conventional liquid crystal display is composed of a backlight module and a liquid crystal display panel mounted on the backlight module, and the backlight module includes a stacked bottom plate, a light source, and an optical film. Taking a direct-type backlight module as an example, the light source may be an LED light board, and the LED light board is attached to the bottom plate with double-sided tape to fix the position between the LED light board and the bottom plate.

[0003] Since the assembled LCD display needs to be disassembled for rework or for recycling of components after disassembly, the backlight module needs to be disassembled. However, in the traditional backlight module structure, since the LED light board and the bottom plate are fixed with double-sided tape, it is not easy to separate the LED light board from the bottom plate during disassembly. Even if force is applied to forcibly separate the LED light board from the bottom plate, it is easy to cause excessive force on the LED light board or the bottom plate, thereby causing damage or deformation of the components, making it difficult to repair or recycle the disassembled and separated components. Summary of the invention

[0004] One object of the present invention is to provide a display module, which can be easily disassembled into a light board and a back board therein, and reduce the damage caused during disassembly.

[0005] One object of the present invention is to provide a backlight module, which can be easily disassembled into a light board and a back board therein and reduce the damage caused during disassembly.

[0006] The display module includes a back plate, a carrier film and a light board. The carrier film is disposed on the back plate and connected to at least a portion of the periphery of the back plate by a first connection unit; wherein the elastic coefficient of the carrier film is smaller than the elastic coefficient of the back plate. The light board is disposed on the carrier film and connected to the carrier surface of the carrier film facing the light board by a second connection unit.

[0007] The backlight module comprises a back plate, a carrier film and a light board. The carrier film is arranged on the back plate and connected to at least a portion of the periphery of the back plate by a first connection unit; wherein the elastic coefficient of the carrier film is smaller than the elastic coefficient of the back plate. The light board is arranged on the carrier film and connected to the carrier surface of the carrier film facing the light board by a second connection unit.

[0008] By setting the carrier film, when the display module or backlight module needs to be reworked or recycled, the light board and the backboard can be easily and quickly disassembled and separated without damaging both. Therefore, the recycling ratio of components can be increased, which is conducive to the realization of a circular economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic diagram of an embodiment of a backlight module.

[0010] Figure 2 for Figure 1 A cross-sectional schematic diagram of an embodiment of a backlight module is shown.

[0011] Figure 3 Schematic diagram of an embodiment of a light board.

[0012] Figure 4 FIG. 4 is a schematic diagram of another embodiment of a backlight module.

[0013] Figure 5 for Figure 4 A cross-sectional schematic diagram of an embodiment of a backlight module is shown.

[0014] Figure 6 FIG. 4 is a schematic diagram of another embodiment of a backlight module.

[0015] Figure 7 FIG. 4 is a schematic diagram of another embodiment of a backlight module.

[0016] Figure 8 FIG. 4 is a schematic diagram of another embodiment of a backlight module.

[0017] Fig. 9 for Figure 8 A schematic diagram of the embodiment in use.

[0018] Fig.10 FIG. 1 is a schematic diagram of an embodiment of a display module.

[0019] Fig.11 FIG. 4 is a schematic diagram of another embodiment of a display module.

[0020] Fig.12 FIG. 4 is a schematic diagram of another embodiment of a display module.

[0021] Wherein, the reference numerals are:

[0022] 1 Display module

[0023] 10 Backlight module

[0024] 30 Display Panel

[0025] 50 Frame

[0026] 70 optical film

[0027] 90 Support

[0028] 100 back panel

[0029] 110 plate body

[0030] 130 side wall

[0031] 131 Gap

[0032] 300 carrier film

[0033] 301 bearing surface

[0034] 310 membrane body

[0035] 330 bending part

[0036] 331 Release part

[0037] 333 Dashed Line

[0038] 335 Gap

[0039] 350 perforations

[0040] 500 light board

[0041] 510 base material

[0042] 520 bottom

[0043] 521 Metal exposure area

[0044] 530 light source

[0045] 710 first connection unit

[0046] 720 Second connection unit

[0047] 730 Third connection unit DETAILED DESCRIPTION

[0048] The following is a specific embodiment and drawings to illustrate the implementation of the display module disclosed in the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. However, the contents disclosed below are not intended to limit the scope of protection of the present invention. Without departing from the spirit of the present invention, those skilled in the art can implement the present invention with other different embodiments based on different viewpoints and applications.

[0049] In the accompanying drawings, for the sake of clarity, the thickness of layers, films, panels, regions, etc. is magnified. Throughout the specification, the same reference numerals represent the same elements. It should be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it may be directly on or connected to another element, or an intermediate element may also exist. On the contrary, when an element is referred to as being "directly on" or "directly connected to" another element, there is no intermediate element. As used herein, "connection" may refer to physical and / or electrical connection.

[0050] It should be understood that although the terms "first", "second", "third", etc. can be used to describe various elements, components, regions, layers and / or parts in this article, these elements, components, regions, and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, the "first element", "first component", "first region", "first layer" or "first part" discussed below can be referred to as the second element, component, region, layer or part without departing from the teachings of this article.

[0051] The terms used herein are only for the purpose of describing specific embodiments and are not restrictive. As used herein, unless the content clearly indicates, the singular forms "one", "an" and "the" are intended to include plural forms, including "at least one". "Or" means "and / or". As used herein, the term "and / or" includes any and all combinations of one or more related listed items. It should also be understood that when used in this specification, the terms "comprising" and / or "including" specify the presence or addition of the features, regions, wholes, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, regions, wholes, steps, operations, elements, parts and / or their combinations.

[0052] Figure 1 The figure shows an embodiment of a backlight module. In the present embodiment, the backlight module 10 comprises a back plate 100, a carrier film 300 and a light board 500. The back plate 100 may be made of a metal material, for example, but not limited thereto. In the present embodiment, the back plate 100 has a plate body 110 and a side wall 130, and the side wall 130 extends upright from one end of the plate body 110 relative to the plate body 110. In addition, the side wall 130 may be formed by bending the side edge of the plate body 110 and be perpendicular to the plate body 110, but not limited thereto. In addition, the side wall 130 may surround the four edges of the plate body 110, but may also have a partial notch or retreat space for other components to be arranged, or may not be provided with a side wall 130 on a certain side of the plate body 110.

[0053] The carrier film 300 is disposed on the back plate 100 and connected to at least a portion of the periphery of the back plate 100 via the first connecting unit 710. Figure 1 and Figure 2 As shown, the carrier film 300 has a film body 310 and a bending portion 330. The film body 310 is stacked on the plate body 110 of the back plate 100 and has a carrying surface 301 opposite to the plate body 110. The bending portion 330 is bent from the side of the film body 310 to form a long strip and extends along the side wall 130. Figure 1 and Figure 2As shown, the bending portion 330 is connected to the side wall 130 via the first connecting unit 710. In this embodiment, the first connecting unit 710 is also formed into a long strip to match the shape of the bending portion 330 and the side wall 130, and both sides of the first connecting unit 710 are adhesive to be respectively attached to the surface of the bending portion 330 and the side wall 130. In different embodiments, when the bending portion 330 is not provided on a part of the side of the membrane body 310, the first connecting unit 710 can also be provided at a position where the edge of the membrane body 310 faces the back plate 100.

[0054] like Figure 1 and Figure 2 As shown, the light board 500 is disposed on the carrier film 300 and connected to the carrier surface 301 by the second connecting unit 720. The light board 500 includes a substrate 510 and a light source 530 disposed on the substrate 510. The light source 530 can be a light emitting diode or a sub-millimeter light emitting diode (Mini LED), but in different embodiments, the light source 530 can also be other self-luminous light sources. In one embodiment, the carrier film 300 at least partially includes an insulating material, or the carrier film 300 is processed by an insulating material. With this arrangement, the possibility of a short circuit on the back of the light board 500 due to contact with the carrier film 300 can be reduced.

[0055] In one embodiment, the elastic coefficient of the carrier film 300 is less than the elastic coefficient of the back plate 100. In other words, the carrier film 300 is more elastic than the back plate 100. In addition, the back plate 100 may have better fracture resistance than the carrier film 300. For example, when subjected to the same stress, the back plate 100 is less likely to break than the carrier film 300 and has better tolerance. In this embodiment, the thickness of the carrier film 300 is less than the thickness of the substrate 510 of the lamp board 500, but it is not limited to this. When disassembling the display module or the backlight module, force can be applied to the carrier film 300. Since the carrier film 300 has better elasticity, the stress is less concentrated on the lamp board 500 or the back plate 100, thereby achieving the effect of protecting the lamp board 500 or the back plate 100. By setting up the carrier film 300, when the display module and the backlight module need to be reworked or recycled, the lamp board 500 and the back plate 100 can be easily and quickly disassembled and separated, and it is not easy to damage both. Therefore, the proportion of component recycling and reuse can be increased, which is conducive to the realization of a circular economy.

[0056] Figure 3 FIG. 5 shows an embodiment of the back side of the light panel 500. Figure 3As shown, the second connection unit 720 can be formed into a long strip, and several second connection units 720 can be arranged in parallel on the back of the light board 500 to connect with the bearing surface 301 of the bearing film 300. The second connection unit 720 can be a double-sided adhesive tape; in one embodiment, the viscosity of the first connection unit 710 can be greater than the viscosity of the second connection unit 720. Therefore, when disassembling the display module or the backlight module, force can be applied to the bearing film 300 to separate the light board 500 from the back plate 100 together with the bearing film 300. In addition, the first connection unit 710 has the property of stretching and reducing viscosity in a specific direction, which is also called easy-to-pull adhesive. The specific direction can be, for example, the side extension direction where the parallel side wall 130 intersects with the plate body 110, that is, the side direction of the back plate 100. Therefore, when disassembling the back plate 100 and the light board 500, the first connection unit 710 can be pulled in a specific direction to weaken the viscosity of the first connection unit 710, thereby achieving the effect of easily separating the carrier film 300 and the back plate 100. In this way, the components can be easily disassembled and recycled, achieving the goal of circular economy.

[0057] In one embodiment, the bottom surface of the carrier film 300 facing the back plate 100 may have weak adhesion to improve the stability of the structure between the carrier film 300 and the back plate 100, and will not cause difficulty in disassembling the light board 500 and the back plate 100; however, in different embodiments, it may not have such weak adhesion. The above-mentioned weak adhesion is preferably less than the adhesion of the first connecting unit 710 and the second connecting unit 720. The following table shows an embodiment of the adhesion range of the first connecting unit 710, the second connecting unit 720 and the bottom surface of the carrier film 300.

[0058] Connection unit Viscosity(g / cm2) Second connection unit 1100～3822 First connection unit 1427～5000 Weak adhesion of the bottom surface of the carrier film 40～1100

[0059] Figure 4 and Figure 5 Another embodiment of the backlight module. In this embodiment, the membrane body 310 has a through hole 350. The third connecting unit 730 is arranged in the through hole 350, and is respectively connected to the back side of the substrate 510 of the light board 500 and the board body 110 of the back plate 100. With this arrangement, the structural stability of the combination between the light board 500 and the back plate 100 can be further improved. In addition, in this embodiment, the bottom surface 520 of the light board 500 has a metal exposed area 521, which is used for grounding the circuit design on the light board 500. The third connecting unit 730 includes a conductive adhesive layer, and is respectively connected to the metal exposed area 521 and the board body 110 of the back plate 100 to produce a grounding effect.

[0060] Figure 6 FIG. 1 is an example of a backlight module. Figure 6As shown, one side of the body 110 of the back plate 100 is not provided with the side wall 130. In this case, a through hole 350 can be provided on the carrier film 300 near the position where the body 110 is not provided with the side wall 130, or the number and / or area of ​​the through holes 350 provided in the above area can be increased. In addition, a third connecting unit 730 is provided in the through hole 350 to connect the light board 500 and the back plate 100, that is, to strengthen the structural strength of the side where the first connecting unit 710 is not provided to connect the side wall 130 and the bent portion 330 of the carrier film 300.

[0061] Figure 7 Another embodiment of the backlight module is shown in FIG. Figure 7 As shown, the side wall 130 has a notch 131 near the end; however, in different embodiments, the notch 131 can also be set at other positions of the side wall 130. When the bent portion 330 of the carrier film 300 is connected to the inner surface of the side wall 130 through the first connecting unit 710, the end of the first connecting unit 710 will be exposed from the notch 131. In other words, the end of the first connecting unit 710 can be contacted from the outside through the notch 131. When the light board 500 and the back plate 100 are disassembled, the first connecting unit 710 can be stretched in a direction parallel to the side of the back plate 100 through the notch 131. The first connecting unit 710 can be stretched to reduce its viscosity due to the material property of the first connecting unit 710, thereby reducing the difficulty of separating the carrier film 300 and the light board 500 from the back plate 100.

[0062] exist Figure 8 In the embodiment, a release portion 331 may be formed at one end of the bent portion 330 of the carrier film 300, and the first connection unit 710 at least partially overlaps with the release portion 331. In this embodiment, the release portion 331 is partially surrounded by an L-shaped broken line 333, that is, the broken line 333 is provided on at least part of the side of the release portion 331. The broken line 333 may be formed on the bent portion 330 in the form of a pre-pressed point. When the light board 500 and the back panel 100 are disassembled, the release portion 331 may be removed along the broken line 333, so that the gap 335 left after the first connection unit 710 is removed from the release portion 331 is exposed, as shown in FIG. Fig. 9 Then, the first connection unit 710 can be stretched in a direction parallel to the side of the back plate 100 through the notch 335 on the bending portion 330. The first connection unit 710 can be stretched to reduce its viscosity due to the material property of the first connection unit 710, thereby reducing the difficulty of separating the carrier film 300 and the light board 500 from the back plate 100.

[0063] Fig.10FIG. 1 is an embodiment of a display module. In this embodiment, the display module includes a backlight module 10, a display panel 30 and a frame 50. The display panel 30 is, for example, a liquid crystal display panel, which is disposed on the light-emitting side of the light board 500 to receive the backlight of the backlight module 10 and generate an image. The frame 50 is disposed on the carrying surface 301 of the carrying film 300 and is located at least partially on the side of the light board 500. The top of the frame 50 supports the edge of the back of the display panel 30 to maintain the distance between the display panel 30 and the light board 500.

[0064] Fig.11 FIG. 2 is another embodiment of a display module. Fig.11 As shown, one or more optical films 70 are disposed between the light board 500 and the display panel 30. Fig.10 The difference between the embodiment shown is that in this embodiment, no frame is provided, but the display panel 30 is directly disposed on the optical film 70 by the support member 90. In this way, the width of the frame can be further reduced.

[0065] Fig.12 FIG. 2 is another embodiment of a display module. In this embodiment, the display module 1 is substantially the same as the embodiment of the backlight module described above, and both include a back plate 100, a carrier film 300, and a light board 500. However, the light board 500 itself has an image display function. Fig.12 As shown, the back plate 100 has a plate body 110 and a side wall 130, and the side wall 130 extends upright from one end of the plate body 110 relative to the plate body 110. In addition, the side wall 130 can be formed by bending the side of the plate body 110 and is perpendicular to the plate body 110, but it is not limited to this. In addition, the side wall 130 can surround the four edges of the plate body 110, but there can also be a partial gap or retreat space for other components to be arranged, or there is no side wall 130 on a side of the plate body 110.

[0066] The carrier film 300 is disposed on the back plate 100 and connected to at least a portion of the periphery of the back plate 100 via the first connecting unit 710. Fig.12 As shown, the carrier film 300 has a film body 310 and a bending portion 330. The film body 310 is stacked on the plate body 110 of the back plate 100 and has a carrying surface 301 opposite to the plate body 110. The bending portion 330 is bent from the side of the film body 310 to form a long strip and extends along the side wall 130. Fig.12As shown, the bending portion 330 is connected to the side wall 130 via the first connecting unit 710. In this embodiment, the first connecting unit 710 is also formed into a long strip to match the shape of the bending portion 330 and the side wall 130, and both sides of the first connecting unit 710 are adhesive to be respectively attached to the surface of the bending portion 330 and the side wall 130. In different embodiments, when the bending portion 330 is not provided on a part of the side of the membrane body 310, the first connecting unit 710 can also be provided at a position where the edge of the membrane body 310 faces the back plate 100.

[0067] like Fig.12 As shown, the light board 500 is disposed on the carrier film 300 and is connected to the carrier surface 301 via a second connecting unit 720. The light board 500 includes a substrate 510 and a light source 530 disposed on the substrate 510. The light board 500 forms pixels for displaying images by means of the light source 530 disposed on the substrate 510, thereby achieving the effect of displaying images. The light source 530 may be a micro light emitting diode (Micro LED), but in different embodiments, the light source 530 may also be an organic light emitting diode or other self-luminous light source. In one embodiment, the carrier film 300 at least partially includes an insulating material, or the carrier film 300 is made of an insulating material. With this arrangement, the possibility of a short circuit on the back of the light board 500 due to contact with the carrier film 300 can be reduced. In addition, Fig.12 Each component in the illustrated embodiment can be adjusted and combined according to the component descriptions in the aforementioned embodiments. By providing the carrier film 300, when the display module needs to be reworked or recycled, the light board 500 and the backboard 100 can be easily and quickly disassembled and separated without damaging the two. Therefore, the recycling ratio of components can be increased, which is conducive to the realization of a circular economy.

[0068] The above descriptions are only some preferred embodiments of the present invention. It should be noted that the present invention can be subjected to various changes and modifications without departing from the spirit and principles of the present invention. It should be understood by those with ordinary knowledge in the art that the present invention is defined by the scope of the attached patent application, and that various possible substitutions, combinations, modifications and conversions do not exceed the scope of the present invention defined by the scope of the attached patent application in accordance with the intent of the present invention.

Claims

1. A display module, characterized in that: Include: a back plate; A carrier film is disposed on the back plate and connected to at least a portion of the periphery of the back plate through a first connecting unit; as well as A light board is disposed on the carrier film and connected to a carrier surface of the carrier film facing the light board through a second connecting unit; Wherein, the elastic coefficient of the supporting film is smaller than the elastic coefficient of the back plate.

2. The display module according to claim 1, characterized in that: It further comprises a third connection unit, wherein the carrier film has a through hole, and the third connection unit is at least partially located in the through hole and is respectively connected to the light board and the back board.

3. The display module according to claim 2, characterized in that: The lamp panel has a bottom surface with a metal exposed area on the bottom surface. The third connection unit includes a conductive adhesive layer, which is respectively connected to the metal exposed area and the back panel.

4. The display module according to claim 1, characterized in that: The carrier film includes an insulating material.

5. The display module according to claim 1, characterized in that: The backplane includes: a plate body, on which the carrier film is disposed; and A side wall extending upright from one end of the plate body relative to the plate body; The carrying film has a bending portion bent relative to the carrying surface, and the bending portion is connected to the side wall through the first connecting unit.

6. The display module according to claim 5, characterized in that: The side wall has a notch, and the first connection unit is exposed from the notch.

7. The display module according to claim 6, characterized in that: The notch is located at the end of the side wall.

8. The display module according to claim 5, characterized in that: One end of the bending portion has a release portion, and at least a portion of the side edge of the release portion is provided with a broken line; the first connecting unit at least partially overlaps with the release portion.

9. The display module according to claim 5, characterized in that: The first connection unit has a stretching and viscosity-reducing property in the extending direction of the side edge where the side wall intersects the plate body.

10. The display module according to claim 5, characterized in that: It further comprises a third connection unit, wherein the carrier film has a through hole, the third connection unit is at least partially located in the through hole and respectively connects the light board and the back board, wherein the position of the through hole is closer to an end of the board body where the side wall is not provided.

11. The display module according to claim 1, characterized in that: The viscosity of the first connection unit is greater than the viscosity of the second connection unit.

12. The display module according to claim 1, characterized in that: The carrier film has a bottom surface facing the back plate, and the bottom surface has a weak adhesiveness which is smaller than the adhesiveness of the first connection unit and the second connection unit.

13. The display module according to claim 1, characterized in that: The thickness of the carrier film is smaller than the thickness of the base material of the light board.

14. The display module according to claim 1, characterized in that: Further including: a display panel, disposed on the light emitting side of the light board; and A frame body is disposed on the supporting surface and is located at least partially on the side of the light board; Wherein, the top end of the frame body supports the edge of the back side of the display panel.

15. A backlight module, characterized in that: Include: a back plate; A carrier film is disposed on the back plate and connected to at least a portion of the periphery of the back plate through a first connecting unit; as well as A light board is disposed on the carrier film and connected to a carrier surface of the carrier film facing the light board through a second connecting unit; Wherein, the elastic coefficient of the supporting film is smaller than the elastic coefficient of the back plate.

16. The backlight module according to claim 15, wherein: It further comprises a third connection unit, wherein the carrier film has a through hole, and the third connection unit is at least partially located in the through hole and is respectively connected to the light board and the back board.

17. The backlight module according to claim 15, wherein: The backplane includes: a plate body, on which the carrier film is disposed; and A side wall extending upright from one end of the plate body relative to the plate body; The carrying film has a bending portion bent relative to the carrying surface, and the bending portion is connected to the side wall through the first connecting unit.

18. The backlight module according to claim 17, wherein: The side wall has a notch, and the first connecting unit protrudes out of the notch.

19. The backlight module according to claim 17, wherein: One end of the bending portion has a release portion, and at least a portion of the side edge of the release portion is provided with a broken line; the first connecting unit at least partially overlaps with the release portion.

20. The backlight module according to claim 17, wherein: The first connection unit has a stretching and viscosity-reducing property in the extending direction of the side edge where the side wall intersects the plate body.

Images