Display device

Abstract

The application discloses a display device, relates to the technical field of display, and aims to at least alleviate the technical problem that the cover plate of a front frame is prone to collapse in the prior art. The display device comprises a middle frame, a front frame, a liquid crystal panel, and at least one chip on film. The middle frame comprises a first supporting part and a plurality of second supporting parts connected with the first supporting part. The first supporting part extends along a first direction, and the plurality of second supporting parts are arranged at intervals along the first direction. The liquid crystal panel is supported on the first supporting part. The chip on film is arranged between two adjacent second supporting parts and electrically connected with the liquid crystal panel. The front frame is supported on the liquid crystal panel and the second supporting parts.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display device. Background Technology

[0002] A liquid crystal display device typically includes a liquid crystal panel, a middle frame, and a front frame. The middle frame serves as the load-bearing base and is mainly used to provide stable support for the liquid crystal panel. The front frame covers the edge of the liquid crystal panel, serving both to obscure the non-display area of ​​the liquid crystal panel and to provide edge protection.

[0003] In related technologies, the mid-frame often adopts a ring-shaped integrated structure design, with a uniform upper surface height, and its only function is to support the LCD panel. After being electrically connected to the LCD panel, the flip-chip film needs to cross the mid-frame and bend towards the back of the LCD panel. Furthermore, the front frame and mid-frame are often fixed together with screws located on the side of the display device. This often results in the front frame cover lacking an effective support structure, making it prone to localized collapse and deformation under prolonged use or slight external pressure, affecting the appearance and reliability of the display device. Utility Model Content

[0004] This application provides a display device to at least alleviate the technical problem in the related art where the front frame cover plate is prone to collapse.

[0005] To achieve the above objectives, embodiments of this application provide a display device, comprising: The middle frame includes a first support portion and a plurality of second support portions connected to the first support portion, wherein the first support portion extends along a first direction and the plurality of second support portions are spaced apart along the first direction; The liquid crystal panel is supported on the first support portion; At least one flip-chip film, the flip-chip film being disposed between two adjacent second supports and electrically connected to the liquid crystal panel; and The front frame is supported on the liquid crystal panel and the second support portion.

[0006] In some embodiments, the display device further includes an adhesive layer disposed on the liquid crystal panel and the second support portion, and spanning the gap between the liquid crystal panel and the second support portion, wherein the front frame is disposed on the adhesive layer.

[0007] In some embodiments, the adhesive layer includes a first adhesive portion and a plurality of second adhesive portions connected to the first adhesive portion. The first adhesive portion extends along the first direction and is disposed on the liquid crystal panel. The plurality of second adhesive portions are arranged at intervals along the first direction, and each second adhesive portion is disposed on a corresponding second support portion.

[0008] In some embodiments, the flip-chip film has a first bonding end electrically connected to the liquid crystal panel; the display device further includes a protective adhesive covering the first bonding end, and the adhesive layer covers the protective adhesive.

[0009] In some embodiments, the adhesive layer includes a first adhesive surface that contacts the liquid crystal panel and a second adhesive surface that contacts the second support portion, wherein the first adhesive surface and the second adhesive surface are coplanar.

[0010] In some embodiments, the adhesive layer is an easy-pull adhesive.

[0011] In some embodiments, the front frame includes a bendably connected cover plate and a side plate, the cover plate being supported on the liquid crystal panel and the second support portion, the side plate including a plurality of first side plate portions and at least one second side plate portion, the second side plate portion being connected between two adjacent first side plate portions; wherein, the flip-chip film includes an intermediate film portion extending along the thickness direction of the display device, the orthographic projection of the intermediate film portion on the plane where the second side plate portion is located is at least partially located within the range of the second side plate portion.

[0012] In some embodiments, the second side plate portion includes a protrusion protruding toward the intermediate film portion, and the surface of the protrusion is an arc surface.

[0013] In some embodiments, the middle frame further includes an edge portion connected to the first support portion, the edge portion including a plurality of first edge segments and at least one second edge segment, the second edge segment being connected between two adjacent first edge segments; wherein, the flip-chip film portion is located between the second edge segment and the second side plate portion, and the thickness of the second edge segment is less than the thickness of the first edge segment.

[0014] In some embodiments, the thickness of the front frame is greater than or equal to 0.1 mm and less than or equal to 0.3 mm.

[0015] In the display device of this application embodiment, since the middle frame includes a plurality of mutually spaced second support portions, and the flip-chip film is disposed between two adjacent second support portions, this facilitates the placement of the flip-chip film and avoids it being difficult to bend due to the constraints of the second support portions during placement; furthermore, the adjacent second support portions can also define heat dissipation channels to facilitate heat dissipation of the flip-chip film. By supporting the liquid crystal panel on the first support portion of the middle frame, the liquid crystal panel can be effectively supported, improving its installation stability. In addition, by supporting the front frame on the liquid crystal panel and the second support portion, the front frame can be well supported, thereby effectively avoiding the problem of the front frame cover plate easily collapsing, thus improving the stability of the display device; and since the front frame is supported on the liquid crystal panel, there is no gap between the front frame and the liquid crystal panel, thereby preventing dust from entering the liquid crystal panel through the gap between the front frame and the liquid crystal panel and damaging the liquid crystal panel.

[0016] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a display device provided in some embodiments of this application; Figure 2 yes Figure 1 A sectional view along the A-A' direction; Figure 3 yes Figure 1 A sectional view along the B-B' direction; Figure 4 This is a schematic diagram of the adhesive layer structure according to some embodiments of this application; Figure 5 This is a schematic diagram of the structure of a side panel according to some embodiments of this application.

[0018] Explanation of reference numerals in the attached figures: 10. Liquid crystal panel; 100. Display device; 11. Array substrate; 12. Color filter substrate; 13. Polarizer; 20. Middle frame; 21. First support part; 22. Second support part; 23. Edge part; 231. First edge segment; 232. Second edge segment; 30. Front frame; 31. Cover plate; 32. Side plate; 321. First side plate portion; 322. Second side plate portion; 3221. Protrusion; 40. Flip film; 41. First bonding end; 42. Intermediate film section; 51. Adhesive layer; 511. First adhesive portion; 512. Second adhesive portion; 52. Protective adhesive; 61. Backplate; 62. Light source; 63. Light guide plate; 64. Optical film; K, gap; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0019] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings. The described technical solutions are for illustrative purposes only and should not be construed as limiting the scope of protection of this application.

[0020] In the description of this application, it should be understood that the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different technical features. The terms "multiple" and similar words mean two or more, unless otherwise expressly defined.

[0021] In this application, the term "example" is used to mean "used as an example, illustration, or illustration." Any embodiment described as "example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application.

[0022] The various embodiments of this application are similar, and features from different embodiments and / or different examples can be combined with each other.

[0023] Some embodiments of this application provide a display device, such as... Figures 1 to 3 As shown, the display device 100 includes a liquid crystal panel 10, a middle frame 20, a front frame 30, and at least one flip-chip film 40.

[0024] The middle frame 20 includes a first support portion 21 and a plurality of second support portions 22 connected to the first support portion 21. The first support portion 21 extends along a first direction X, and the plurality of second support portions 22 are spaced apart along the first direction X. The plurality of second support portions 22 are disposed on the same side of the first support portion 21.

[0025] The liquid crystal panel 10 is supported on the first support portion 21. The flip-chip film 40 is disposed between two adjacent second support portions 22 and is electrically connected to the liquid crystal panel 10. The front frame 30 is supported on the liquid crystal panel 10 and the second support portions 22.

[0026] In this embodiment, since the middle frame 20 includes a plurality of mutually spaced second support portions 22, and the flip-chip film 40 is disposed between two adjacent second support portions 22, this facilitates the placement of the flip-chip film 40 and avoids it being difficult to bend due to the constraints of the second support portions 22 during placement. Furthermore, the adjacent second support portions 22 can also define heat dissipation channels to facilitate heat dissipation of the flip-chip film 40. By supporting the liquid crystal panel 10 on the first support portion 21 of the middle frame 20, the liquid crystal panel 10 can be effectively supported, improving its installation stability. In addition, by supporting the front frame 30 on the liquid crystal panel 10 and the second support portion 22, the front frame 30 can be well supported, effectively preventing the cover plate of the front frame 30 from easily collapsing, thereby improving the operational stability of the display device 100. Furthermore, since the front frame 30 is supported on the liquid crystal panel 10, there is no gap between the front frame 30 and the liquid crystal panel 10, thus preventing dust from entering the liquid crystal panel through the gap between the front frame and the liquid crystal panel and damaging the liquid crystal panel.

[0027] In some examples, multiple flip-chip films 40 can be arranged sequentially at intervals.

[0028] In some embodiments, please refer to Figure 2 The display device 100 also includes an adhesive layer 51, which is disposed on the liquid crystal panel 10 and the second support portion 22 and spans the gap K between the liquid crystal panel 10 and the second support portion 22. The front frame 30 is disposed on the adhesive layer 51.

[0029] This configuration secures the front frame 30 to the LCD panel 10 and the second support portion 22 via the adhesive layer 51, thereby fixing the front frame 30 in place and ensuring its installation stability. Furthermore, since the adhesive layer 51 spans the gap K between the LCD panel 10 and the second support portion 22, the connection area between the adhesive layer 51 and the front frame 30 is increased, further enhancing the installation stability of the front frame 30.

[0030] In some embodiments, such as Figures 2 to 4 As shown, the adhesive layer 51 includes a first adhesive portion 511 and a plurality of second adhesive portions 512 connected to the first adhesive portion 511. The first adhesive portion 511 extends along a first direction X and is disposed on the liquid crystal panel 10. The plurality of second adhesive portions 512 are arranged sequentially at intervals along the first direction X, and each second adhesive portion 512 is disposed on a corresponding second support portion 22. The first direction X can be the length direction of the display device 100, and the width direction of the display device is the second direction Y. The first direction X and the second direction Y can be perpendicular.

[0031] This configuration allows the adhesive layer 51 to avoid the position of the flip-chip film 40 and has a larger bonding area with the middle frame 20 and the front frame 30, thereby improving the installation stability of the front frame 30.

[0032] Please see Figure 4 Multiple second adhesive portions 512 may be located on one side of the first adhesive portion 511 and are respectively connected to the first adhesive portion 511. The multiple second adhesive portions 512 correspond one-to-one with the multiple second support portions 22.

[0033] In some examples, openings may be provided at both ends of the first adhesive portion 511 to avoid the components at the corresponding opening positions of the first adhesive portion 511 and the display device 100.

[0034] In some examples, the adhesive layer 51 is a pull-tab adhesive. The pull-tab adhesive is easy to cut, thus forming spaced-apart second adhesive portions 512, facilitating the fabrication and use of the adhesive layer 51. Furthermore, the pull-tab adhesive has good adhesion, ensuring the installation stability of the front frame 30. In addition, the pull-tab adhesive is easy to peel off and leaves little residue, facilitating the disassembly and reuse of the front frame 30.

[0035] In some embodiments, please refer to Figure 2 and Figure 3 The flip-chip film 40 has a first bonding end 41 that is electrically connected to the liquid crystal panel 10; the display device 100 also includes a protective adhesive 52 covering the first bonding end 41, and the adhesive layer 51 covers the protective adhesive 52.

[0036] This configuration allows the protective adhesive 52 to bond the first bonding end 41 of the flip-chip film 40 to the corresponding bonding end of the liquid crystal panel 10, thereby improving the electrical connection stability between the flip-chip film 40 and the liquid crystal panel 10 and preventing the electrical connection between the flip-chip film 40 and the liquid crystal panel 10 from failing due to stretching. Furthermore, since the adhesive layer 51 covers the protective adhesive 52, a certain width is provided for the adhesive layer 51, allowing for a larger bonding area between the adhesive layer 51 and the liquid crystal panel 10.

[0037] When the protective adhesive 52 includes a first adhesive portion 511 and a second adhesive portion 512, the first adhesive portion 511 extends beyond the liquid crystal panel 10 to cover the protective adhesive 52.

[0038] In some embodiments, please continue reading Figure 2 The adhesive layer 51 includes a first adhesive surface that contacts the liquid crystal panel 10 and a second adhesive surface that contacts the second support portion 22. The first adhesive surface and the second adhesive surface are coplanar. That is, the surface of the liquid crystal panel 10 that contacts the adhesive layer 51 is coplanar with the upper surface of the second support portion 22.

[0039] This design facilitates the arrangement of the adhesive layer 51 while ensuring the flatness of the cover plate 31 of the front frame 30.

[0040] In some embodiments, please continue reading Figure 2 and Figure 3 The display device 100 also includes a back panel 61 and a backlight assembly, the backlight assembly being disposed within the back panel 61 and the light emission direction of the backlight assembly being towards the liquid crystal panel 10.

[0041] The backlight assembly includes a light source 62 and a light guide plate 63 located on the light-emitting side of the light source 62. The light source 62 includes a circuit board and LEDs electrically connected to the circuit board. The light emission direction of the LEDs faces the light-incident side of the light guide plate 63. The light guide plate 63 has a light-emitting front side adjacent to the light-incident side, which can convert the light emitted by the LEDs into a surface light source and emit it from the light-emitting front side. The backlight assembly may also include an optical film 64 located on the light-emitting front side of the light guide plate 63. The optical film 64 can modulate the surface light source to improve the light emission effect of the backlight assembly. For example, the optical film 64 may include a diffusion film and a brightness enhancement film stacked sequentially. Furthermore, the light source 62 and the front frame 30 can both be located on the ground side of the display device 100.

[0042] In some examples, the liquid crystal panel 10 includes an array substrate 11, a color filter substrate 12 and a polarizer 13 arranged sequentially on one side of the array substrate 11. The edge of the array substrate 11 protrudes from the color filter substrate 12, forming a first step. The edge of the color filter substrate 12 protrudes from the polarizer 13, forming a second step. The second step and the first step are located on the same side of the liquid crystal panel 10. The bonding end of the array substrate 11 and the first bonding end 41 of the flip-chip film 40 are located on the first step. The upper surface of the second step is bonded to the adhesive layer 51.

[0043] In some examples, the polarizer 13 located on the side of the color filter substrate 12 away from the array substrate 11 is the first polarizer, and the liquid crystal panel 10 also includes a second polarizer located on the side of the array substrate 11 away from the color filter substrate 12, the polarization direction of the second polarizer being perpendicular to the polarization direction of the first polarizer.

[0044] In some examples, the first support portion 21 is also provided with an adhesive 53, and the array substrate 11 is bonded to the first support portion 21 by the adhesive 53, so as to fix the liquid crystal panel 10.

[0045] In some embodiments, the thickness of the front frame 30 is greater than or equal to 0.1 mm and less than or equal to 0.3 mm.

[0046] This design makes the front bezel 30 relatively thin, thereby reducing or eliminating the step difference between the front bezel 30 and the LCD panel 10, thus improving the visual experience of the display device 100.

[0047] For example, the thickness of the front frame 30 can be 0.1mm, 0.12mm, 0.14mm, 0.15mm, 0.16mm, 0.18mm, 0.2mm, 0.22mm, 0.24mm, 0.25mm, 0.26mm, 0.28mm, or 0.3mm, etc., and this application embodiment does not limit this.

[0048] In some examples, the front bezel 30 can be a light-shielding front bezel, for example, the front bezel 30 can be painted black. With this configuration, when viewed from the front of the display device 100, the black part of the front bezel 30 visually blends with the black border of the liquid crystal panel 10, making the physical bezel appear narrower, thereby achieving a visual effect close to four-sided bezel-less (4-BzelLess, or 4BL for short).

[0049] In some embodiments, the display device 100 may further include a light-shielding member 54, one end of which is adhered to the front frame 30, and the other end is located on the side of the array substrate 11 opposite to the color filter substrate 12. This allows the light-shielding member 54 and the front frame 30 to together form a light-shielding area to shield the flip-chip film 40 and other electronic components located within the light-shielding area, thereby improving the visual appeal of the display device 100.

[0050] In some examples, the light-shielding element 54 can be black Mylar.

[0051] In some embodiments, such as Figures 1 to 3 as well as Figure 5 As shown, the front frame 30 includes a cover plate 31 and a side plate 32 that are bent and connected. The cover plate 31 is supported on the liquid crystal panel 10 and the second support portion 22. The side plate 32 includes a plurality of first side plate portions 321 and at least one second side plate portion 322, with the second side plate portion 322 connected between two adjacent first side plate portions 321. The flip-chip film 40 includes an intermediate film portion 42 extending along the thickness direction (i.e., the third direction Z) of the display device 100. The orthographic projection of the intermediate film portion 42 on the plane where the second side plate portion 322 is located is at least partially located within the area of ​​the second side plate portion 322. The third direction Z is perpendicular to the first direction X.

[0052] In this embodiment, the second side plate portion 322 of the side plate 32 is arranged correspondingly to the flip-chip film 40. Since the orthographic projection of the intermediate film portion 42 of the flip-chip film 40 on the plane where the second side plate portion 322 is located is at least partially within the range of the second side plate portion 322, the second side plate portion 322 can provide good protection for the intermediate film portion 42 and avoid the second side plate portion 322 being too small in the third direction Z, which could easily puncture the flip-chip film 40, thereby ensuring the working stability of the flip-chip film 40.

[0053] In some examples, the flip-chip film 40 further includes a second bonding end located opposite the first bonding end 41, and an intermediate film portion 42 located between the first bonding end 41 and the second bonding end. The flip-chip film 40 is bent such that the second bonding end is located on the back side of the liquid crystal panel 10, and the intermediate film portion 42 extends in a third direction Z.

[0054] In some embodiments, the second side plate portion 322 includes a protrusion 3221 protruding toward the central film portion 42, and the surface of the protrusion 3221 is an arc surface.

[0055] This design enhances the structural strength of the second side plate 322 through the protrusion 3221, preventing problems such as deformation due to the large size of the second side plate 322 in the third direction Z. Furthermore, since the surface of the protrusion 3221 is curved, it also avoids the problem of the protrusion 3221 easily causing punctures to the flip-chip film 40 during bending.

[0056] In some examples, the arc surface can be an elliptical arc surface.

[0057] In some embodiments, please refer to Figure 2 and Figure 3 The middle frame 20 also includes an edge portion 23 connected to the first support portion 21. The edge portion 23 includes a plurality of first edge segments 231 and at least one second edge segment 232, with the second edge segment 232 connecting two adjacent first edge segments 231. The second edge segment 232 may be correspondingly disposed with the flip-chip film 40.

[0058] In some examples, the flip-chip film 40 is partially located between the second edge segment 232 and the second side plate portion 322, and the thickness of the second edge segment 232 is less than the thickness of the first edge segment 231. For example, the intermediate film portion 42 of the flip-chip film 40 is located between the second edge segment 232 and the second side plate portion 322. That is, along the second direction Y, the second edge segment 232, the intermediate film portion 42, and the second side plate portion 322 are arranged sequentially.

[0059] In this embodiment, since the thickness of the second edge segment 232 is relatively small, the flip-chip film 40 is easy to bend at the position of the second edge segment 232, thereby helping to ensure that the display device 100 is flat on the side and improving the appearance of the display device 100.

[0060] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display device, characterized in that, include: The middle frame includes a first support portion and a plurality of second support portions connected to the first support portion, wherein the first support portion extends along a first direction and the plurality of second support portions are spaced apart along the first direction; The liquid crystal panel is supported on the first support portion; At least one flip-chip film, the flip-chip film being disposed between two adjacent second support portions and electrically connected to the liquid crystal panel; as well as The front frame is supported on the liquid crystal panel and the second support portion.

2. The display device according to claim 1, characterized in that, The display device further includes an adhesive layer disposed on the liquid crystal panel and the second support portion, and spanning the gap between the liquid crystal panel and the second support portion, and the front frame is disposed on the adhesive layer.

3. The display device according to claim 2, characterized in that, The adhesive layer includes a first adhesive portion and a plurality of second adhesive portions connected to the first adhesive portion. The first adhesive portion extends along the first direction and is disposed on the liquid crystal panel. The plurality of second adhesive portions are arranged at intervals along the first direction, and each second adhesive portion is disposed on a corresponding second support portion.

4. The display device according to claim 2, characterized in that, The flip-chip film has a first bonding end that is electrically connected to the liquid crystal panel; The display device further includes a protective adhesive covering the first bonding end, and the adhesive layer covers the protective adhesive.

5. The display device according to claim 2, characterized in that, The adhesive layer includes a first adhesive surface that contacts the liquid crystal panel and a second adhesive surface that contacts the second support portion, wherein the first adhesive surface and the second adhesive surface are coplanar.

6. The display device according to claim 2, characterized in that, The adhesive layer is an easy-pull adhesive.

7. The display device according to any one of claims 1-6, characterized in that, The front frame includes a cover plate and a side plate that are bent and connected. The cover plate is supported on the liquid crystal panel and the second support portion. The side plate includes a plurality of first side plate portions and at least one second side plate portion. The second side plate portion is connected between two adjacent first side plate portions. The flip-chip film includes an intermediate film portion extending along the thickness direction of the display device, and the orthographic projection of the intermediate film portion on the plane where the second side plate portion is located is at least partially located within the range of the second side plate portion.

8. The display device according to claim 7, characterized in that, The second side plate portion includes a protrusion that protrudes toward the central film portion, and the surface of the protrusion is an arc surface.

9. The display device according to claim 7, characterized in that, The middle frame also includes an edge portion connected to the first support portion. The edge portion includes a plurality of first edge segments and at least one second edge segment, wherein the second edge segment connects two adjacent first edge segments. The flip-chip film portion is located between the second edge segment and the second side plate portion, and the thickness of the second edge segment is less than the thickness of the first edge segment.

10. The display device according to any one of claims 1-6, characterized in that, The thickness of the front frame is greater than or equal to 0.1 mm and less than or equal to 0.3 mm.

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