Rubber frame, backlight module and display device

Abstract

The utility model discloses a rubber frame, a backlight module and a display device, and relates to the technical field of display. The rubber frame comprises a fixed frame, a supporting enclosure frame and a light-transmitting supporting plate, and the supporting enclosure frame is arranged on the inner side of the fixed frame and is perpendicular to the side wall of the fixed frame; a hollow cavity is formed in the middle of the supporting enclosure frame. The light-transmitting supporting plate is arranged in the hollow cavity, and the periphery of the light-transmitting supporting plate is connected with the supporting enclosure frame. By arranging the light-transmitting supporting plate in the hollow cavity formed by supporting the middle of the enclosure frame in the fixing frame, light rays emitted by the lamp beads on the back plate can penetrate through the light-transmitting supporting plate to be reflected to the display panel after passing through the optical film set, and the light-transmitting supporting plate can also provide certain support for the display panel; the display panel is effectively prevented from collapsing in the middle and deforming due to self gravity or external force; therefore, the display panel is poor in display, and the display effect of the display device is affected.

Description

Technical Field

[0001] The utility model relates to the field of display technology, in particular to a plastic frame, a backlight module and a display device. Background Art

[0002] The display device includes a backlight module and a display panel. Figure 1 This is a top view of the backlight module in the prior art. Figure 2 yes Figure 1 The cross-section view in the AA direction, Figure 3 yes Figure 2 A partial enlarged view of point B in the middle. Figure 1-Figure 3 As shown, the backlight module 100 includes a back panel 101, a plastic frame 103 and an optical film group 102. The back panel 101 includes a bottom panel 1011 and a side panel 1012. A lamp board is provided on the bottom panel 1011, and lamp beads are electrically connected to the lamp board. The plastic frame 103 includes a fixed frame 1 and a supporting enclosure frame 2 provided on the inner side of the fixed frame 1. The fixed frame 1 is fixed to the side panel 1012. The optical film group 102 is provided below the supporting enclosure frame 2. The supporting enclosure frame 2 presses down the optical film group 102. The display panel is fixed to the top of the supporting enclosure frame 2 by a buffer tape. The light emitted by the lamp beads is reflected to the display panel through the optical film group 102, and the picture is displayed through the display panel.

[0003] Due to the large gap between the optical film group 102 and the display panel, the display panel is prone to collapse downward and deform under its own gravity and external forces, resulting in poor display of the display panel; especially for display panels with larger sizes, their own gravity is greater and the circumferential support area is smaller, which increases the probability of poor display. Utility Model Content

[0004] The purpose of the present invention is to provide a plastic frame, a backlight module and a display device, wherein the plastic frame can provide effective support for the display panel, prevent the display panel from deforming and causing light leakage from the backlight module to affect the display screen of the display panel, thereby ensuring the display effect of the display device.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] The plastic frame comprises:

[0007] Fixed frame;

[0008] A supporting enclosure frame is provided inside the fixed frame, wherein a hollow cavity is formed in the middle of the supporting enclosure frame;

[0009] The light-transmitting support plate is arranged in the hollow cavity, and the four sides of the light-transmitting support plate are connected to the supporting enclosure frame.

[0010] As an optional solution for the plastic frame, the light-transmitting support plate is arranged flush with the upper surface of the supporting enclosure frame.

[0011] As an optional solution for the plastic frame, the light-transmitting support plate is injection-molded in the hollow cavity and is transparent.

[0012] As an optional solution for the plastic frame, a metal sheet is provided between the light-transmitting support plate and the supporting enclosure frame.

[0013] As an optional solution for the plastic frame, the metal sheet and the supporting enclosure frame are arranged at a preset angle, and the preset angle is greater than or equal to 90° and less than 180°.

[0014] As an optional solution for the plastic frame, the fixing frame and the supporting enclosure frame are injection-molded into one piece.

[0015] As an optional solution of the plastic frame, the supporting enclosure frame is made of a metal plate or a plastic plate.

[0016] As an optional solution to the plastic frame, the light-transmitting support plate is a transparent plastic plate.

[0017] The backlight module comprises an optical film group and a plastic frame as described in any of the above solutions, wherein the optical film group is placed below the supporting enclosure frame.

[0018] The display device comprises a display panel and the backlight module as described above. The display panel is placed above the supporting enclosure frame, and the light-transmitting support plate can support the display panel.

[0019] Beneficial effects of the utility model:

[0020] The plastic frame provided by the present invention, by arranging a light-transmitting support plate in the hollow cavity formed in the middle of the supporting enclosure frame inside the fixed frame, not only can the light emitted by the lamp beads on the back panel be reflected to the display panel through the light-transmitting support plate after passing through the optical film group, but the light-transmitting support plate can also provide support for the middle of the display panel, effectively preventing the display panel from collapsing in the middle due to its own gravity or external force, and deforming. In particular, for larger display panels with greater weight, relying solely on the supporting enclosure frame to support the circumference of the larger display panel, the risk of the display panel collapsing downward in the middle due to its own weight is greater. In severe cases, the connection between the display panel and the supporting enclosure frame may fail, resulting in a gap between the display panel and the supporting enclosure frame, leading to poor display of the display panel due to light leakage from the backlight module. The plastic frame can provide effective support for the display panel, preventing the display panel from deforming, causing light leakage from the backlight module, and affecting the display image of the display panel, thereby ensuring the display effect of the display device.

[0021] The backlight module provided by the present invention includes an optical film group and the above-mentioned plastic frame. The optical film group is arranged below the supporting enclosure frame of the plastic frame to press the optical film group and prevent the optical film group from being displaced in the backlight module. At the same time, the transparent support plate arranged in the hollow cavity of the supporting enclosure frame not only plays an auxiliary supporting role for the middle part of the display panel arranged above the supporting enclosure frame, but also does not affect the reflection of light, thereby strengthening the supporting strength of the backlight module, preventing light leakage from the backlight module, and ensuring the quality of the backlight module.

[0022] The display device provided by the present invention includes a display panel and the above-mentioned backlight module. The display panel is placed above a supporting enclosure frame. The supporting enclosure frame is used to support and fix the circumference of the display panel. The middle part of the display panel is supported by a transparent support plate, which does not affect the light emitted by the lamp beads on the back panel and is reflected to the display panel through the optical film group, and can effectively support the middle part of the display panel, ensuring that the display panel will not collapse downward due to its own gravity and external forces, and deform, causing light leakage from the backlight module, and further affecting the display screen of the display panel to appear black screen and other poor quality; thereby ensuring the display effect of the display device and improving the quality of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a top view of a backlight module in the prior art;

[0024] Figure 2 yes Figure 1 Cross-section along the AA direction;

[0025] Figure 3 yes Figure 2 A partial enlarged view of point B in the middle;

[0026] Figure 4 This is a structural diagram of a plastic frame provided by a specific embodiment of the utility model;

[0027] Figure 5 yes Figure 4 Cross-section along CC direction;

[0028] Figure 6 yes Figure 5 A partial enlarged view of point D in the middle;

[0029] Figure 7 This is a schematic diagram of inserting a metal sheet perpendicular to the supporting enclosure frame during injection molding of the plastic frame provided by a specific embodiment of the utility model;

[0030] Figure 8 This is a schematic diagram of a metal sheet being inserted at an angle greater than 90° to the supporting enclosure frame during injection molding of the plastic frame provided by a specific embodiment of the utility model;

[0031] Figure 9This is a schematic diagram of an injection-molded light-transmitting support plate when the supporting enclosure frame provided by the specific embodiment of the present invention is a metal plate or a plastic plate;

[0032] Figure 10 This is a top view of a backlight module provided in a specific embodiment of the present utility model;

[0033] Figure 11 yes Figure 10 Cross-section along the EE direction;

[0034] Figure 12 yes Figure 11 A partial enlarged view of point F in the middle.

[0035] In the picture:

[0036] 100, backlight module; 101, back panel; 1011, bottom panel; 1012, side panel; 102, optical film assembly; 103, plastic frame;

[0037] 1. Fixed frame; 2. Support enclosure frame; 3. Translucent support plate; 4. Metal sheet. DETAILED DESCRIPTION

[0038] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the present invention are further explained below with reference to the accompanying drawings and through specific implementation methods.

[0039] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0040] This embodiment provides a plastic frame, Figure 4 This is a structural diagram of the plastic frame provided by the specific embodiment of the utility model. Figure 5 yes Figure 4 Cross-section view in CC direction, Figure 6 yes Figure 5 A partial enlarged view of point D in the middle. Figure 4-Figure 6As shown, the plastic frame 103 includes a fixed frame 1, a supporting enclosure frame 2 and a transparent support plate 3. The supporting enclosure frame 2 is arranged on the inner side of the fixed frame 1 and is arranged perpendicular to the side wall of the fixed frame 1 to provide a support plane for the display panel. A hollow cavity is formed in the middle of the supporting enclosure frame 2. The transparent support plate 3 is arranged in the hollow cavity, and the four sides of the transparent support plate 3 are connected to the supporting enclosure frame 2. The transparent support plate 3 can support the display panel, and at the same time, the light emitted by the lamp beads on the lamp board can be reflected to the display panel through the transparent support plate 3, effectively preventing the display panel from collapsing in the middle due to its own gravity or external force, and deforming; especially for larger display panels with larger weight, relying only on the supporting enclosure frame 2 to support the circumference of the larger display panel, the risk of the display panel collapsing in the middle due to its own weight is greater. In severe cases, the connection between the display panel and the supporting enclosure frame 2 may fail, thereby causing a gap between the display panel and the supporting enclosure frame 2, resulting in light leakage and poor display of the display panel. The plastic frame 103 can provide effective support for the display panel, preventing the display panel from deforming and causing light leakage from the backlight module to affect the display screen of the display panel, thereby ensuring the display effect of the display device.

[0041] The light-transmitting support plate 3 is flush with the upper surface of the supporting enclosure frame 2. Since the supporting enclosure frame 2 and the light-transmitting support plate 3 jointly support the lower surface of the display panel, in order to ensure that the display panel is in a horizontal plane and does not bend or collapse, it is necessary to ensure that the light-transmitting support plate 3 is flush with the upper surface of the supporting enclosure frame 2.

[0042] The thickness of the transparent support plate 3 can be the same as the thickness of the supporting enclosure frame 2, so that the upper and lower surfaces of the transparent support plate 3 and the supporting enclosure frame 2 are flush, and the lower surfaces of the transparent support plate 3 and the supporting enclosure frame 2 can simultaneously press the components below the supporting enclosure frame 2 to ensure that the components below the supporting enclosure frame 2 will not shift, further ensuring the display effect of the display panel.

[0043] The thickness of the transparent support plate 3 can also be smaller than the thickness of the supporting enclosure frame 2. Only the upper surface of the transparent support plate 3 is aligned with the upper surface of the supporting enclosure frame 2, and the lower surface of the transparent support plate 3 can be higher than the lower surface of the supporting enclosure frame 2, that is, only the lower surface of the supporting enclosure frame 2 is used to press the components below the supporting enclosure frame 2, ensuring that the components below the supporting enclosure frame 2 will not shift.

[0044] There are many ways to form the plastic frame 103, wherein the fixed frame 1, the supporting enclosure frame 2 and the transparent support plate 3 can be set as an integrated structure or a separate structure; or the fixed frame 1 and the supporting enclosure frame 2 can be set as an integrated structure.

[0045] In one embodiment, the transparent support plate 3 is injection-molded into the hollow cavity and is transparent. The transparent support plate 3 is injection-molded into the hollow cavity and integrally connected to the supporting enclosure frame 2. The transparent support plate 3 allows light to pass through, allowing light emitted by the lamp beads to be reflected through the transparent support plate 3 and onto the display panel.

[0046] In one embodiment, the fixed frame 1 and the supporting enclosure frame 2 are injection molded as one body. The injection molding materials of the fixed frame 1 and the supporting enclosure frame 2 are different from the injection molding materials of the light-transmitting support plate 3. When the two different materials are injection molded, the core sliding two-color injection technology is adopted. The working principle of the core sliding two-color injection technology is to divide the core into two times for use. During the first injection molding, the core to be used is slid to the specified position, and the mold closing injection molding work is implemented. The first plastic raw material is injected into the mold, and the mold is opened once after cooling; the transmission device slides out the first core and slides the second core to the cavity. Then the second plastic raw material is injected, and after it cools and takes shape, an injection molding cycle is completed. Finally, the finished product synthesized by the two injection moldings is slid out. The injection mold and the injection molding method are not the focus to be protected in this embodiment, so the specific structure of the mold and the transmission device required for the injection molding process will not be described here.

[0047] It should be noted that both injection molding materials are polycarbonate (PC). Since polycarbonate is inherently transparent, it can exhibit different colors, such as translucent, translucent with glass fiber, milky white, pale yellow, etc., depending on the modification process or the addition of other ingredients. Therefore, the polycarbonate material used to injection-moldify the fixed frame 1 and the supporting enclosure frame 2 is modified or has other ingredients added to it, while the material used to injection-moldify the transparent support plate 3 is the polycarbonate material itself.

[0048] Furthermore, when the transparent support plate 3 is injection-molded, the transparent polycarbonate material of the injection-molded transparent support plate 3 can extend to the area of ​​the molded support enclosure frame 2 to meet the requirements of narrow frame design and the problem of poor frame lines.

[0049] Because the interface between the two injection molding materials is prone to accumulation and unevenness, a metal sheet 4 is provided between the light-transmitting support plate 3 and the upper surface of the supporting enclosure frame 2 to ensure that the light-transmitting support plate 3 is flush with the upper surface of the supporting enclosure frame 2. That is, when the injection molding material for the light-transmitting support plate 3 is filled, the metal sheet 4 is placed on the side of the supporting enclosure frame 2 close to the light-transmitting support plate 3 to prevent the two injection molding materials from mixing and accumulating and causing unevenness.

[0050] Figure 7 This is a schematic diagram of inserting a metal sheet perpendicular to the supporting enclosure frame during injection molding of the plastic frame provided by a specific embodiment of the utility model. Figure 8This is a schematic diagram of a metal sheet inserted at an angle greater than 90° to the supporting enclosure frame during injection molding of the plastic frame provided by the specific embodiment of the present invention. Figure 7 and Figure 8 As shown, the metal sheet 4 and the supporting enclosure frame 2 are arranged at a predetermined angle, which is greater than or equal to 90° and less than 180°. This arrangement not only avoids unevenness at the interface between the two injection molding materials, but also adjusts the edge of the AA area, such as light leakage or dark bands, to prevent quality anomalies.

[0051] Of course, in some embodiments, Figure 9 Schematic diagram of an injection molded light-transmitting support plate when the supporting enclosure frame provided by the specific embodiment of the present invention is a metal plate or a plastic plate. Figure 9 As shown, the fixing frame 1 and the supporting enclosure frame 2 are made of metal plates or plastic plates. That is, the hollow cavity of the metal plates or plastic plates is filled with injection molding material to form a light-transmitting support plate 3, and the injection molding material and the metal plates or plastic plates are injection-molded into one piece.

[0052] Of course, in other embodiments, the light-transmitting support plate 3 may also be a transparent plastic plate, that is, the transparent plastic plate and the supporting enclosure frame 2 may be fixed by gluing or other methods, so as to achieve the functions of support and light transmission.

[0053] This embodiment also provides a backlight module 100, Figure 10 This is a top view of the backlight module provided by the specific embodiment of the utility model. Figure 11 yes Figure 10 Cross-section along the EE direction, Figure 12 yes Figure 11 A partial enlarged view of point F in the middle. Figure 10-12 As shown, the backlight module 100 includes a back panel 101, a lamp panel (not shown), an optical film assembly 102, and the aforementioned plastic frame 103. The back panel 101 includes side panels 1012 and a bottom panel 1011. The lamp panel is disposed on the bottom panel 1011, and a plurality of lamp beads are arranged in an array on the surface of the lamp panel facing away from the bottom panel 1011. The fixing frame 1 and the side panels 1012 are fixedly connected by means of a snap connection or the like. The optical film assembly 102 is disposed between the supporting enclosure frame 2 and the back panel 101. The supporting enclosure frame 2 presses against the optical film assembly 102 to prevent the optical film assembly 102 from moving within the backlight module 100. At the same time, the transparent support plate 3 arranged in the hollow cavity of the supporting enclosure frame 2 not only plays an auxiliary supporting role for the middle part of the display panel arranged above the supporting enclosure frame 2; but also does not affect the reflection of light, thereby strengthening the supporting strength of the backlight module 100, preventing the backlight module 100 from leaking light, and ensuring the quality of the backlight module 100.

[0054] This embodiment also provides a display device, including a display panel and the above-mentioned backlight module 100. The display panel is arranged on the backlight module 100, and the backlight module 100 provides backlight for the display panel to display images. The display panel is placed above the supporting enclosure frame 2, and the supporting enclosure frame 2 is used to support and fix the circumference of the display panel. The middle part of the display panel is supported by the transparent support plate 3, which neither affects the light emitted by the lamp beads on the back plate 101 and is reflected to the display panel through the optical film group 102, nor can it effectively support the middle part of the display panel, ensuring that the display panel will not collapse downward due to its own gravity and external forces, causing deformation, resulting in light leakage from the backlight module 100, and further affecting the display of the display panel. The screen appears black and other poor quality; thus, the display effect of the display device is guaranteed and the quality of the display device is improved.

[0055] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. Plastic frame, characterized in that, include: Fixed frame (1); A supporting enclosure frame (2) is arranged on the inner side of the fixed frame (1), and a hollow cavity is formed in the middle of the supporting enclosure frame (2); A light-transmitting support plate (3) is arranged in the hollow cavity, and the four sides of the light-transmitting support plate (3) are connected to the supporting enclosure frame (2).

2. The plastic frame according to claim 1, characterized in that: The light-transmitting support plate (3) is arranged flush with the upper surface of the supporting enclosure frame (2).

3. The plastic frame according to claim 1, characterized in that: The light-transmitting support plate (3) is injection-molded in the hollow cavity and is transparent.

4. The plastic frame according to claim 3, characterized in that: A metal sheet (4) is provided between the light-transmitting support plate (3) and the supporting enclosure frame (2).

5. The plastic frame according to claim 4, characterized in that: The metal sheet (4) and the supporting enclosure frame (2) are arranged at a preset angle, and the preset angle is greater than or equal to 90° and less than 180°.

6. The plastic frame according to any one of claims 1 to 5, characterized in that: The fixing frame (1) and the supporting enclosure frame (2) are injection-molded into one piece.

7. The plastic frame according to any one of claims 1 to 5, characterized in that: The supporting enclosure frame (2) is made of a metal plate or a plastic plate.

8. The plastic frame according to any one of claims 1 to 5, characterized in that: The light-transmitting support plate (3) is a transparent plastic plate.

9. A backlight module, characterized in that: It comprises an optical film group (102) and a plastic frame according to any one of claims 1 to 8, wherein the optical film group (102) is placed below the supporting enclosure frame (2).

10. A display device, characterized in that It comprises a display panel and the backlight module according to claim 9, wherein the display panel is placed above the supporting enclosure frame (2), and the transparent support plate (3) can support the display panel.

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