Display device

Abstract

To provide a display device having an outer frame with a good-looking, delicate structure while ensuring the safety of the display device.SOLUTION: A display device 10 disclosed herein comprises a display panel 40; a structure 30 surrounding the display panel 40; a frame 31 attached around the structure 30, the frame being an integrally molded member having a cross-section that bends on the front side of the display device 10; and an elastic material 32 provided on the inner side of the bend of the frame 31 to bond the structure 30 and the frame 31 together.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a display device that displays an image on its front surface. [Background technology]

[0002] Patent Document 1 describes a technology relating to the outer frame of a display. It states that "the display device includes a liquid crystal display panel (120), a front bezel (110) positioned on the display surface side of the liquid crystal display panel (120) and having an opening (111) on its side wall, and a rear bezel (132) positioned on the opposite side of the display surface side of the liquid crystal display panel (120) and having a claw portion (131) on its side wall that engages with the opening (111). The display device includes an elastic body (140) positioned between the front bezel (110) and the rear bezel (131) and biasing the front bezel (110) and the rear bezel (132) in directions separating them from each other when the opening (111) and the claw portion (131) are engaged. The elastic body (140) is composed of a plurality of elastic members (141, 142) with different elastic moduli." [Prior art documents] [Patent documents]

[0003] [Patent Document 1] WO2012 / 137712 Summary of the Invention [Problem to be solved by the invention]

[0004] According to the above-mentioned prior art, the tolerance for the gap between the locked portion of the front bezel and the locking portion of the rear bezel can be increased, allowing the front and rear bezels to be more securely integrated. On the other hand, aesthetics are also an important factor for the outer frame. Therefore, although not described in the above-mentioned prior art, delicate structures are sometimes employed for the outer frame for aesthetic reasons. However, when such delicate structures are employed, the outer frame may break upon impact, causing fragments to fly off.

[0005] An object of the present invention is to provide a display device having an outer frame with a finely structured aesthetic while ensuring the safety of conventional display devices. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, one representative display device of the present invention is a display device that displays an image on its front surface, characterized by having a display panel, a structure surrounding the periphery of the display panel, an integrally molded member having a cross section that is bent on the front side of the display device, an edge portion attached to the periphery of the structure, and an elastic body that is positioned inside the bend of the edge portion and adheres the structure to the edge portion. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a display device having an outer frame with a finely structured aesthetic while ensuring the safety of a conventional display device. The problems, configurations, and effects other than those described above will become clear from the following description of the embodiment. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an external configuration diagram of a display device according to a first embodiment of the present invention; [Figure 2] Reference example of display device configuration [Figure 3] Illustration of damage in the reference example [Figure 4] Configuration diagram of the display device of Example 1 [Figure 5] Illustration of damage in Example 1 [Figure 6] Schematic diagram of the structure and edges [Figure 7] Explanatory diagram of positioning members DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment will be described with reference to the drawings. [Example]

[0010] FIG. 1 is an external configuration diagram of a display device according to a first embodiment. The display device 10 is an in-vehicle display device that is installed in a vehicle. The display device 10 includes a rear cover portion 20, a structure 30, and a display panel 40.

[0011] The display panel 40 is a lens assembly including a liquid crystal panel and a cover lens. The display output side of the display panel 40 is called the display surface, and the other surface is called the back surface. The structure 30 forms an outer frame that surrounds the periphery of the display panel. The rear cover part 20 is fixed to the structure 30 and covers the rear surface of the display panel 40 and the structure 30. In the display device 10, the display output side of the display panel 40 is called the front side for convenience.

[0012] 2 shows a reference example of the configuration of a display device. A display panel 40 is a lens assembly having a configuration in which a cover lens 41 is bonded to a liquid crystal display (LCD: Liquid Crystal Display) 43 with a transparent adhesive (OCR: Optical Clear Resin) 42. The display panel 40 is adhered to the structure 30a by an RTV (Room Temperature Vulcanizing) silicone rubber adhesive 50. The structure 30a is fixed to the rear cover part 20 by, for example, engagement with a claw. Note that the structure 30a has a different shape from the structure 30 of the first embodiment, and is therefore denoted by a different reference numeral.

[0013] 2, the outer periphery of the structure 30a forms the outer frame of the display panel 40, and the outer edge of the display device 10. The outer frame is easily seen by the user and greatly affects the aesthetic appearance of the display device 10. When the structure 30a is manufactured from resin or the like, the inside of the edge portion is made hollow in order to avoid sink marks and form the desired shape with high precision. The outer edge of the display device 10 protrudes a predetermined amount beyond the display surface of the display panel 40 to protect the display panel 40 . That is, when an object collides with the display device 10, it is designed to hit the edge of the outer frame before the display panel 40. However, if the inside of the edge is hollow, the edge will break when an impact is applied to the outer frame, causing fragments to fly off.

[0014] Fig. 3 is an explanatory diagram of damage in a reference example, which shows a state in which an object 60 collides with the outer frame, simulating the occurrence of an accident.

[0015] At this time, the collision point between the outer frame of the structure 30a and the object 60 breaks, causing fragments to fly (C1). Also, the boundary between the structure 30a and the rear cover part 20 breaks, causing fragments to fly (C2). Also, the edge part cracks midway, causing a large step (C3).

[0016] 4 is a configuration diagram of the display device of Example 1. In the display device 10 of Example 1, the structure 30 has an edge 31 attached to its periphery. That is, the outer edge of the display device 10, which is also the outer frame of the display panel 40, is not formed by the outer periphery of the structure 30a itself as in the reference example, but is formed by a separate component. The edge portion 31 is an integrally molded member having a cross section that is bent so that the front side of the display device 10 is convex. The edge 31 is bonded to the structure 30 by an elastic material 32 filled inside the bend of the edge 31 . The edge 31 protrudes a predetermined amount from the display surface of the display panel 40 to protect the display panel 40 .

[0017] As in the reference example, the display panel 40 is made up of a lens assembly having a cover lens 41 bonded to a liquid crystal display 43 with a transparent adhesive 42 . The display panel 40 is adhered to the structure 30 by an RTV silicone rubber adhesive 50 . The structure 30 is fixed to the rear cover part 20 by, for example, engaging a claw.

[0018] The structure 30 has a protrusion on its outer periphery, and the edge 31 is attached to the structure 30 by the elastic body 32 exposed on the inner periphery abutting against the protrusion. That is, the display surface side of the outer edge of the structure 30 functions as an adhesive margin for adhering the edge portion 31 with the elastic body 32 .

[0019] The depth of the inner periphery of the edge portion 31 is smaller than the depth of the outer periphery of the edge portion 31. A gap 33 is provided over the entire circumference between the inner peripheral end of the edge 31 and the structure 30, and the inner peripheral end of the edge 31 and the structure 30 are not in direct contact with each other. Furthermore, the outer peripheral end of the edge portion 31 and the rear cover portion 20 form the side of the display device 10, and a gap 33 is provided around the entire circumference between the outer peripheral end of the edge portion 31 and the rear cover portion 20, and the outer peripheral end of the edge portion 31 and the rear cover portion 20 are not in direct contact with each other.

[0020] Fig. 5 is an explanatory diagram of damage in Example 1. Fig. 5 shows a state in which an object 60 collides with the edge portion 31. For example, when an accident occurs in a vehicle equipped with the display device 10, it is conceivable that the head or arm of a passenger may collide with the display device 10. In this case, the object 60 is a part of the human body.

[0021] In Figure 5, the collision point between edge 31 and object 60 is broken (C1). However, because the inside of edge 31 is filled with and adhered to elastic body 32, even if it breaks into pieces, it remains adhered to elastic body 32 and does not scatter. Furthermore, there are gaps 33 between the edge 31 and the rear cover part 20, and between the edge 31 and the structure 30. These gaps 33 and the elastic body 32 absorb impacts. This prevents breakage at the end of the edge 31 (C2) and prevents cracks along the edge 31 (C3). Even if a crack does occur along the edge 31, no large step will be created because the elastic body 32 is filled inside. Therefore, even if the object 60 is a human body, injury from flying fragments or cracks can be prevented.

[0022] The elastic body 32 is preferably made of RTV (Room Temperature Vulcanizing) silicone rubber. If the elastic body 32 is made of the same material as the adhesive 50 that bonds the display panel 40 and the structure 30, it is possible to share equipment for filling the elastic body 32 and applying the adhesive 50. Furthermore, filling the elastic body 32 and applying the adhesive 50 may be performed simultaneously in the same process.

[0023] Furthermore, by making the structure 30 and the edge portion 31 separate components, the edge portion 31 can be easily plated. 6 is an explanatory diagram of the structure 30 and the edge portion 31. The structure 30 has a claw that engages with the rear cover portion 20. Because the plated portion becomes hard and brittle, if the edge is part of the structure 30a as in the reference example, it becomes necessary to protect the claw portion from plating. To protect the claw portion from plating, for example, it becomes necessary to mask the claw portion to prevent plating from adhering to the claw portion or to perform two-tone molding of the claw portion and the portion to be plated, but this increases the number of processes and costs. On the other hand, in the display device 10 of Example 1, the edge 31 to be plated is a separate part. Therefore, the entire edge 31 is plated and then bonded to the structure 30 by the elastic body 32.

[0024] FIG. 7 is an explanatory diagram of the positioning member. As shown in FIG. 7, the structure 30 includes a thin plate member 34 and a thin plate member 35 . The outer edge of the structure 30 has a step in a plane parallel to the display surface, and the surface facing the inner peripheral end of the edge portion 31 is farther from the display panel 40 than the surface to which the display panel 40 is bonded. The thin plate member 34 stands in a direction perpendicular to the display surface from the surface facing the inner peripheral end of the edge portion 31. The inner peripheral end of the edge portion 31 is sandwiched between the step of the structure 30 and the thin plate member 34, thereby defining the positional relationship between the edge portion 31 and the structure 30 in the direction parallel to the display surface.

[0025] The thin plate member 35 is erected outward from the surface of the structure 30 corresponding to the side of the display device 10, and abuts against the outer periphery of the edge portion 31, thereby defining the positional relationship between the edge portion 31 and the structure 30 in a direction parallel to the display surface. Although not shown in the figure, a thin plate member may be provided that stands from the structure 30 toward the inner end of the edge 31 and abuts against the inner end of the edge 31, thereby determining the positional relationship between the edge 31 and the structure 30 in the direction perpendicular to the display surface.

[0026] The thickness of thin plate members 34 and 35 is set so that they break and function as buffer members that cushion the impact when an impact occurs to edge 31. The same applies to the thin plate members that define the positional relationship between edge 31 and structure 30 in the direction perpendicular to the display surface. Such a thin plate member can position the edge portion 31 and the structure 30 and achieve shock absorption.

[0027] As described above, the disclosed display device 10 comprises a display panel 40, a structure 30 surrounding the periphery of the display panel 40, an edge 31 which is an integrally molded member having a cross section that bends on the front side of the display device 10 and is attached to the periphery of the structure 30, and an elastic body 32 which is positioned inside the bend of the edge 31 and bonds the structure 30 and the edge 31 together. Therefore, even if the edge portion 31 is damaged, scattering of broken pieces and the occurrence of large cracks with steps can be prevented.

[0028] The depth of the inner periphery of the edge portion 31 is smaller than the depth of the outer periphery of the edge portion 31. A gap is provided over the entire circumference between the inner peripheral end of the edge portion 31 and the structure 30, and the inner peripheral end of the edge portion and the structure are not in direct contact with each other. The display device 10 further includes a rear cover part 20 that is fixed to the structure 30 and covers the display panel 40 and the structure 30, and the outer peripheral end of the edge part 31 and the rear cover part 20 form the side of the display device 10, and a gap is provided around the entire periphery between the outer peripheral end of the edge part 31 and the rear cover part 20, and the outer peripheral end of the edge part 31 and the rear cover part 20 are not in direct contact with each other. Therefore, the gap and the elastic body 32 absorb the impact. Furthermore, the depth of the inner periphery of the edge portion 31 is smaller than the depth of the outer periphery of the edge portion 31, and the outer periphery end of the edge portion 31 and the rear cover portion 20 form the side of the display device 10, so that the structure 30 is not exposed on the side, and the design of the side can be flexibly determined.

[0029] The structure further includes a thin plate member that is provided on the structure 30, defines the positional relationship between the structure and the edge portion, and breaks when an impact is applied to the edge portion to cushion the impact. This allows the edge 31 to be positioned and shock absorbed.

[0030] Furthermore, the structure 30 has a protrusion on its outer periphery, and the edge 31 is attached to the structure 30 by the elastic body 32 exposed on the inner periphery abutting against the protrusion. Therefore, the outer periphery of the structure 30 functions as an adhesive margin for the elastic body 32 .

[0031] The edge 31 may also be plated. Because the edge 31 and the structure 30 are independent components, the edge 31 can be plated and then bonded to the structure 30, and the plating does not affect the structure 30. This allows for greater freedom in the design of the edge 31 at low cost.

[0032] Furthermore, it is preferable that the elastic body 32 is made of RTV (Room Temperature Vulcanizing) silicone rubber, and that the edge portion 31 and the structure 30 are bonded together by the RTV silicone rubber. Furthermore, the elastic body 32 may be made of the same material as the adhesive 50 that bonds the display panel 40 and the structure 30 together. Such a configuration contributes to sharing of equipment and reduction of processes.

[0033] The display device 10 may be an in-vehicle display device that is installed in a vehicle. In an in-vehicle display device, it is particularly important to prevent damage to structural members and scattering of the display device in the event of an accident.

[0034] The present invention is not limited to the above-described embodiments, but includes various modifications. For example, the above-described embodiments have been described in detail to clearly explain the present invention, and the present invention is not necessarily limited to those including all of the described configurations. Furthermore, not only can the configurations be deleted, but also replacements and additions of configurations are possible. [Explanation of symbols]

[0035] 10: display device, 20: rear cover portion, 30: structure, 31: edge portion, 32: elastic body, 33: gap, 34: thin plate member, 35: thin plate member, 40: display panel, 41: cover lens, 42: transparent adhesive, 43: liquid crystal display, 50: adhesive, 60: object

Claims

1. A display device that displays an image on its front surface, A display panel; a structure surrounding the periphery of the display panel; an integrally molded member having a cross section that is bent on the front side of the display device, the edge being attached to the periphery of the structure; an elastic body disposed inside the bend of the edge portion and bonding the structure and the edge portion; A display device comprising:

2. a depth of the inner periphery of the edge portion is smaller than a depth of the outer periphery of the edge portion; 2. The display device according to claim 1, wherein a gap is provided around the entire periphery between the inner peripheral end of the edge portion and the structure, and the inner peripheral end of the edge portion and the structure are not in direct contact with each other.

3. a rear cover portion fixed to the structure and covering the display panel and the structure; a depth of the inner periphery of the edge portion is smaller than a depth of the outer periphery of the edge portion; an outer peripheral end of the edge portion and the rear cover portion constitute a side surface of the display device; 2. The display device according to claim 1, wherein a gap is provided around the entire periphery between the outer peripheral end of the edge portion and the rear cover portion, and the outer peripheral end of the edge portion and the rear cover portion are not in direct contact with each other.

4. 4. The display device according to claim 2 or 3, further comprising a thin plate member provided on the structure, which determines the positional relationship between the structure and the edge portion, and which breaks to cushion the impact when an impact occurs to the edge portion.

5. The display device according to claim 1, characterized in that the structure has a protrusion on its outer periphery, and the edge is attached to the structure by the elastic body exposed on the inner periphery abutting the protrusion.

6. 2. The display device according to claim 1, wherein the edge is plated.

7. 2. The display device according to claim 1, wherein the elastic body is a room temperature vulcanizing (RTV) silicone rubber, and the edge and the structure are bonded together by the RTV silicone rubber.

8. 2. The display device according to claim 1, wherein the elastic body is made of the same material as an adhesive that bonds the display panel and the structure.

9. 9. The display device according to claim 1, wherein the display device is an in-vehicle display device mounted on a vehicle.

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