A display device
By setting a limiting boss in the extension of the display device frame and combining it with the bending transition area, the problems of screen collapse and scratches are solved, the assembly accuracy and finished product yield are improved, and the stable support and precise assembly of the screen and the back cover are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FAURECIA COAGENT ELECTRONICS (FENGCHENG) CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-16
AI Technical Summary
In the prior art, during the assembly of the screen and back cover of the display device, the screen is prone to collapse and adhesive loss due to gravity, which affects the assembly accuracy and the yield of finished products. At the same time, the height-limiting protrusion can easily scratch the screen, reducing the yield of finished products.
The extension of the mid-frame forms a limiting boss, which, combined with the curved transition area, reduces friction between the screen edge and the extension. The curved transition area also reduces the need for rounding corners and applying rubber pads, thus avoiding screen scratches and ensuring assembly accuracy and product yield.
This effectively prevents scratches on the screen during assembly, improves the assembly accuracy and yield of the screen and back cover, and enhances the screen's support stability and assembly precision.
Smart Images
Figure CN224368116U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of display technology, and more particularly to a display device. Background Technology
[0002] Display devices may include a screen and a back cover. The screen and back cover are typically assembled using adhesive. The specific assembly process can be as follows: first, a paste-like adhesive is applied to the surface of the back cover that supports the screen; then, the screen is placed on the adhesive; and finally, the adhesive is cured to achieve assembly. However, after the screen is placed on the adhesive and during the subsequent curing process, under the influence of the screen's gravity and the compression during curing, the screen is prone to collapse relative to the back cover, squeezing some of the adhesive into the back cover. This results in adhesive loss, contaminating the internal space of the display device, and compromising the assembly accuracy between the screen and the back cover.
[0003] To avoid this problem, existing technologies can provide height-limiting protrusions on the surface of the back cover used to support the screen. The screen rests on these protrusions to support and stop it from collapsing, effectively keeping the adhesive between the screen and the supporting surface on the back cover, thus ensuring assembly accuracy and stability. However, in existing technologies, because the surface on the back cover used to support the screen is relatively narrow, the height-limiting protrusions are also narrow, making them prone to scratching the screen during assembly, thereby affecting assembly accuracy and product yield. Utility Model Content
[0004] This application provides a display device for solving the problem of how to improve the assembly accuracy of the screen and the back cover, thereby increasing the yield of finished products.
[0005] To achieve the above objectives, this application adopts the following technical solution:
[0006] This application provides a display device including a middle frame and a rear cover. The rear cover includes a bottom wall and a side frame disposed at the edge of the bottom wall, the end face of the side frame opposite to the bottom wall including a support surface area. The middle frame is housed within the rear cover, and the edge of the middle frame has an extension forming a limiting boss, which limits the mounting height of the screen edge relative to the support surface area. The extension includes a first surface and a second surface arranged along the thickness direction of the limiting boss, and a side surface located between the first surface and the second surface, the first surface being the surface of the extension opposite to the side frame, and a curved transition area being provided at the connection area between the first surface and the side surface.
[0007] Compared to the existing technology where the side is an extension facing away from the side frame and the side defines the installation height of the screen edge relative to the support surface area, this utility model provides a curved transition area between the first surface and the side connection area, reduces the need for rounding corners or polishing processes, and reduces the need for attaching rubber pads to the side. This reduces friction between the screen edge and the extension, avoids scratching the screen during assembly, and ensures assembly accuracy and product yield.
[0008] In some embodiments, the bending transition region includes a collapsed corner region adjacent to the first surface.
[0009] In some embodiments, the curved transition region includes a bright band region located on the side.
[0010] In some embodiments, the thickness of the collapsed corner area is greater than or equal to 0.08 times the thickness of the limiting boss, and less than or equal to 0.33 times the thickness of the limiting boss.
[0011] In some embodiments, the thickness of the bright band region is greater than or equal to 0.15 times the thickness of the limiting boss, and less than or equal to 0.55 times the thickness of the limiting boss.
[0012] In some embodiments, the width B of the limiting boss is greater than 0.3 mm.
[0013] In some embodiments, the extension further includes a connecting portion, one end of which is connected to the portion of the limiting boss facing away from the side, and the other end of which is connected to the edge of the middle frame.
[0014] In some embodiments, the extension and the middle frame are integrally formed metal structures.
[0015] In some embodiments, the number of extensions is multiple, and the multiple extensions are respectively disposed on multiple edges of the middle frame.
[0016] In some embodiments, the display device further includes a screen and a backlight module. The screen includes a light-transmitting cover and a display module fixed to the light-transmitting cover. The edge of the light-transmitting cover is fixed to a support surface area and a limiting boss. The display module is supported on a mid-frame. The backlight module is disposed on the side of the mid-frame opposite to the display module and is fixed to the mid-frame. Attached Figure Description
[0017] Figure 1 This application provides a schematic diagram of the structure of a display device according to some embodiments;
[0018] Figure 2 for Figure 1 A partial structural schematic diagram of the display device shown.
[0019] Figure 3 for Figure 2Enlarged schematic diagram of the structure at point B;
[0020] Figure 4 for Figure 3 A schematic diagram of the structure of the middle extension.
[0021] Figure label:
[0022] 100. Display device;
[0023] 1. Mid-frame; 11. Extension; 111. Limiting boss; 112. Connecting part; 113. First surface; 114. Side; 1141. First side; 1142. Second side; 1143. Third side; 115. Curved transition area; 1151. Collapsed corner area; 1152. Glossy area; 116. Second surface;
[0024] 2. Back cover; 21. Bottom wall; 22. Side frame; 221. Support surface area;
[0025] 3. Screen; 31. Light-transmitting cover. Detailed Implementation
[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0027] Hereinafter, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
[0028] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0029] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.
[0030] Please see Figure 1 , Figure 1 This is a schematic diagram illustrating the structure of a display device 100 according to some embodiments of this application. The display device 100 can be used to display images and information. In some embodiments, the display device 100 can be applied to the center console of a vehicle. In other embodiments, the display device 100 can also be applied to the display of a television, computer, mobile phone, smartwatch, washing machine, or other scenarios. This application does not limit the application scenarios of the display device 100.
[0031] Please see Figures 1 to 4 , Figure 2 for Figure 1 A partial structural schematic diagram of the display device 100 shown. Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point B. Figure 4 for Figure 3 A schematic diagram of the structure of the extension portion 11. The display device 100 may include a middle frame 1 and a back cover 2. The back cover 2 includes a bottom wall 21 and a side frame 22 disposed at the edge of the bottom wall 21. The end face of the side frame 22 facing away from the bottom wall 21 includes a support surface area 221. The middle frame 1 is housed within the back cover 2, and the edge of the middle frame 1 is provided with an extension portion 11. The extension portion 11 forms a limiting boss 111, which is used to limit the mounting height of the edge of the screen 3 relative to the support surface area 221. The extension portion 11 includes a first surface 113 and a second surface 116 arranged along the thickness direction of the limiting boss 111, and a side surface 114 located between the first surface 113 and the second surface 116. The first surface 113 is the surface of the extension portion 11 facing away from the side frame 22, and the connection area between the first surface 113 and the side surface 114 is provided with a curved transition area 115.
[0032] Compared to the prior art where the side 114 is the surface of the extension 11 facing away from the side frame 22, and the side 114 is used to define the installation height of the screen 3 edge relative to the support surface area 221, this utility model provides a curved transition area 115 at the connection area between the first surface 113 and the side 114, reducing the need for rounding corners or polishing processes, and reducing the need for attaching rubber pads to the side 114. This reduces friction between the edge of the screen 3 and the extension 11, avoids scratching the screen 3 during assembly, and ensures assembly accuracy and product yield.
[0033] In some examples, the middle frame 1 can be a rectangular ring structure.
[0034] In some examples, the extension 11 can be a sheet-like structure. Alternatively, the extension 11 can also be a block-like structure, a plate-like structure, an irregular structure, etc.
[0035] In some examples, the side 114 located between the first surface 113 and the second surface 116 may include a first side 1141, a second side 1142 and a third side 1143, wherein the first side 1141 and the second side 1142 are located on both sides of the length direction of the limiting boss 111, and the third side 1143 is located between the first side 1141 and the second side 1142.
[0036] In some examples, the curved transition region 115 can be formed by a stamping process. When the curved transition region 115 is stamped from top to bottom along the thickness direction of the limiting boss 111, the curved transition region 115 may include a corner-shaped region 1151 and a bright region 1152, which are arranged along the thickness direction of the limiting boss 111. The corner-shaped region 1151 is located above the bright region 1152.
[0037] In some embodiments, the curved transition region 115 includes a collapsed corner region 1151, which is adjacent to the first surface 113.
[0038] The corner area 1151 is a smooth rounded transition area. Therefore, there is no need to perform rounding or polishing processes on the curved transition area 115. It can also ensure that the contact surface between the curved transition area 115 and the screen 3 is a smooth surface, reducing the process of attaching rubber pads to the side 114. This reduces the friction between the edge of the screen 3 and the extension 11, avoids scratching the screen 3, and helps to ensure the yield of finished products.
[0039] In some embodiments, the curved transition region 115 includes a bright band region 1152 located on the side 114.
[0040] The bright band area 1152 is a smooth flat band, which reduces the probability of friction between the edge of the screen 3 and the extension 11, avoids scratching the screen 3, and helps to ensure the yield of finished products.
[0041] The distance between the first surface 113 and the second surface 116 of the limiting boss 111 is the thickness of the limiting boss 111, and the direction perpendicular to the first surface 113 and the second surface 116 is the thickness direction of the limiting boss 111.
[0042] If the thickness of the corner-shaped region 1151 is the length of its projection onto the thickness direction of the limiting boss 111, and the thickness of the bright region 1152 is the length of its projection onto the thickness direction of the limiting boss 111, then in actual products, the thicknesses of the corner-shaped region 1151 and the bright region 1152 may vary circumferentially due to molding processes or environmental conditions. Therefore, the thicknesses of the corner-shaped region 1151 and the bright region 1152 can be the minimum, maximum, average, or median value of the length of their projection onto the thickness direction of the limiting boss 111.
[0043] It is known that if the thickness of the corner strip area 1151 is too thin, the bending transition area 115 may be too thin, which may result in sharp protrusions between the side 114 and the first surface 113, making a smooth transition impossible, and friction may still occur between the edge of the screen 3 and the extension 11. If the thickness of the corner strip area 1151 is too thick, it may encroach on the effective support area of the limiting boss 111, weakening its hard limiting function for the screen edge, resulting in an imbalance in the overall rigidity of the mid-frame.
[0044] In some embodiments, the thickness of the corner band region 1151 is greater than or equal to 0.08 times the thickness of the limiting boss 111, and less than or equal to 0.33 times the thickness of the limiting boss 111. For example, the ratio of the thickness of the corner band region 1151 to the thickness of the limiting boss 111 can be 0.08, 0.12, 0.16, 0.2, 0.24, 0.28, 0.33, etc. When the ratio of the thickness of the corner band region 1151 to the thickness of the limiting boss 111 is within this range, the thickness of the corner band region 1151 is moderate, balancing smooth transition and support rigidity.
[0045] It is known that the fracture zone and burr zone formed by the stamping process are generally located below the glossy zone. If the glossy zone 1152 is thinner, the fracture zone and burr zone will be closer to the corner collapse zone 1151, that is, closer to the screen 3. The fracture zone and burr zone generally have rough surfaces, which will increase the probability of friction between the edge of the screen 3 and the extension 11. If the glossy zone 1152 is thicker, the thickness of the fracture zone and burr zone will be compressed, and a more obvious stress concentration will be generated on the second surface 116, increasing the probability of deformation of the limiting boss 111 and reducing the accuracy of the limiting height.
[0046] In some embodiments, the thickness of the bright band region 1152 is greater than or equal to 0.15 times the thickness of the limiting boss 111, and less than or equal to 0.55 times the thickness of the limiting boss 111. For example, the ratio of the thickness of the bright band region 1152 to the thickness of the limiting boss 111 can be 0.15, 0.20, 0.30, 0.40, 0.45, 0.50, 0.55, etc. When the ratio of the thickness of the bright band region 1152 to the thickness of the limiting boss 111 is within this range, the thickness of the bright band region 1152 is moderate, balancing less friction and limiting accuracy.
[0047] It is known that if the width B of the limiting boss 111 is narrow, the contact area between the limiting boss 111 and the screen 3 is small. During the assembly process of the screen 3, it is easy to scratch the screen 3, which is not conducive to ensuring the yield of finished products. In addition, the structural strength of the narrow limiting boss 111 is also weak, which is not conducive to ensuring the support stability of the screen 3. If the width B of the limiting boss 111 is wide, a wider middle frame 1 or side frame 22 may be required, which will affect the screen ratio or the overall size of the display device 100.
[0048] In some embodiments, the width B of the limiting boss 111 can be greater than 0.3 mm. For example, the width B of the limiting boss 111 can be 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, etc. When the width B of the limiting boss 111 is within this range, the width B of the limiting boss 111 is moderate, which can take into account the finished product yield, structural strength, overall size and screen ratio.
[0049] In some embodiments, the width B of the limiting boss 111 can be greater than or equal to 0.6 mm. When the width B of the limiting boss 111 is within this range, the width B of the limiting boss 111 is moderate, which can better balance the finished product yield, structural strength, overall size and screen ratio.
[0050] In some embodiments, please continue reading Figure 2 and Figure 3 The extension 11 also includes a connecting part 112, one end of which is connected to the portion of the limiting boss 111 facing away from the side 114, and the other end is connected to the edge of the middle frame 1.
[0051] By connecting one end of the connecting part 112 to the part of the limiting boss 111 facing away from the side 114, and connecting the other end to the edge of the middle frame 1, the middle frame 1 can be set on the side of the support surface area 221 facing the bottom wall by means of the connecting part 112, so as to avoid the display module of the screen 3 and avoid interference between the middle frame 1 and the display module.
[0052] In some examples, the limiting boss 111 and the connecting part 112 can be an integral structure, for example, processed by bending, stamping, or other processes, and can be L-shaped. The connection between the limiting boss 111 and the connecting part 112 has a certain rounded corner. This reduces friction between the edge of the screen 3 and the extension 11, preventing scratches on the screen 3 and ensuring a high yield rate.
[0053] In other examples, the limiting boss 111 and the connecting part 112 can also be separate structures. For example, the limiting boss 111 and the connecting part 112 can be connected by welding, or they can be assembled by snap-fitting, riveting, or other methods.
[0054] In some embodiments, the extension 11 and the middle frame 1 can be integral metal structures, such as those formed by bending, stamping and other processes.
[0055] The extension 11 and the middle frame 1 can be a one-piece metal structure, which can reduce the number of components of the display device 100, thereby reducing assembly difficulty and improving assembly efficiency. Furthermore, the position of the corner area 1151 and the bright area 1152 can be defined by the stamping direction, and the thickness of the corner area 1151 and the bright area 1152 can be controlled by controlling the forming process.
[0056] The metal can be aluminum, iron, steel, or other metal materials. In some other embodiments, the extension 11 and the middle frame 1 can also be separate structures. For example, the extension 11 and the middle frame 1 can be assembled and connected by welding, snap-fitting, riveting, or other methods.
[0057] In some embodiments, the number of extensions 11 can be multiple, and the multiple extensions 11 are respectively disposed on multiple edges of the middle frame 1.
[0058] Therefore, during the assembly process of screen 3, the stability of the support for screen 3 can be guaranteed, the flatness requirements of screen 3 and back cover 2 can be met, and the assembly accuracy of screen 3 and back cover 2 can be further improved.
[0059] In some examples, multiple extensions 11 are arranged at circumferential intervals along the support surface region 221. For example, the number of extensions 11 can be nine. In addition, the number of extensions 11 can also be other numbers, such as six, eight, ten, etc., and this application does not specifically limit this number.
[0060] In some other embodiments, the number of extensions 11 may also be one.
[0061] In some embodiments, the display device 100 may further include a screen 3 and a backlight module. The screen 3 includes a light-transmitting cover plate 31 and a display module fixed to the light-transmitting cover plate 31. The edge of the light-transmitting cover plate 31 is fixed to the support surface area 221 and the limiting boss 111. The display module is supported on the middle frame 1. The backlight module is disposed on the side of the middle frame 1 opposite to the display module and is fixed to the middle frame 1. Based on this, the layout is reasonable by disposing the backlight module on the side of the middle frame 1 opposite to the display module and fixing it to the middle frame 1. The backlight module can generate backlight, and the display module is used to modulate the backlight generated by the backlight module to generate a display image on the light-transmitting cover plate 31, which can be viewed by the user.
[0062] Therefore, during the assembly of screen 3, the support surface area 221 and the limiting boss 111 can ensure the stability of the support for screen 3. In addition, the light-transmitting cover 31 can provide waterproof and dustproof protection for the display module, the support surface area 221 and the limiting boss 111.
[0063] In some examples, the light-transmitting cover 31 can be glued to the support surface area 221 and the limiting boss 111.
[0064] In some examples, the light-transmitting cover 31 can be a glass light-transmitting cover or an acrylic light-transmitting cover.
[0065] In some examples, screen 3 can be a film on glass (FOG) or a liquid crystal display (LCD), and this application does not specifically limit it.
[0066] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0067] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A display device, characterized in that, include: The back cover includes a bottom wall and a side frame disposed on the edge of the bottom wall, wherein the end face of the side frame opposite to the bottom wall includes a support surface area. The middle frame is housed within the back cover, and the edge of the middle frame is provided with an extension portion, the extension portion forming a limiting boss, the limiting boss being used to limit the installation height of the screen edge relative to the support surface area; The extension includes a first surface and a second surface arranged along the thickness direction of the limiting boss, and a side surface located between the first surface and the second surface. The first surface is the surface of the extension facing away from the side frame, and the connection area between the first surface and the side surface is provided with a curved transition area.
2. The display device according to claim 1, characterized in that, The bending transition region includes a collapsed corner area, which is close to the first surface.
3. The display device according to claim 1, characterized in that, The curved transition region includes a bright band region located on the side.
4. The display device according to claim 2, characterized in that, The thickness of the collapsed corner area is greater than or equal to 0.08 times the thickness of the limiting boss, and less than or equal to 0.33 times the thickness of the limiting boss.
5. The display device according to claim 3, characterized in that, The thickness of the bright band region is greater than or equal to 0.15 times the thickness of the limiting boss, and less than or equal to 0.55 times the thickness of the limiting boss.
6. The display device according to claim 1, characterized in that, The width of the limiting boss is greater than 0.3mm.
7. The display device according to claim 1, characterized in that, The extension also includes a connecting portion, one end of which is connected to the portion of the limiting boss facing away from the side, and the other end is connected to the edge of the middle frame.
8. The display device according to claim 1, characterized in that, The extension and the middle frame are integrally formed metal structures.
9. The display device according to claim 1, characterized in that, The number of extensions is multiple, and the multiple extensions are respectively disposed on multiple edges of the middle frame.
10. The display device according to claim 1, characterized in that, Also includes: The screen includes a light-transmitting cover plate and a display module fixed to the light-transmitting cover plate. The edge of the light-transmitting cover plate is fixed to the supporting surface area and the limiting boss. The display module is supported by the middle frame. A backlight module is disposed on the side of the middle frame opposite to the display module and is fixed to the middle frame.