Display device

The display device addresses thermal expansion issues by using claw portions with return edges and rotational support to securely engage the chassis and cabinet, ensuring stability and ease of assembly/disassembly.

JP7745450B2Active Publication Date: 2025-09-29SHARP KK
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Patent Information

Application Number
JP2021198597
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-12-07
Publication Date
2025-09-29
Estimated Expiration
2041-12-07

AI Technical Summary

Technical Problem

Conventional display devices face issues with protrusions falling off due to thermal expansion differences between components made of different materials, leading to improper engagement of the chassis and cabinet.

Method used

A display device design featuring a chassis with openings and a cabinet with claw portions, where one claw engages with one edge of the opening and another with the opposite edge, utilizing return portions and rotational support to maintain engagement despite thermal expansion.

Benefits of technology

Ensures proper engagement and secure attachment of the chassis and cabinet, preventing disengagement due to thermal expansion, with easy assembly and disassembly mechanisms.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

To provide a display device in which a chassis and a cabinet are appropriately engaged with each other.SOLUTION: A display device (1) comprises: a chassis (100) that has an opening (160); and a cabinet (200) that has a pair of claw parts (260) which are inserted into the opening and are engaged with the opening and that covers the chassis, one of the pair of claw parts having a first return part (263) being hung on a first edge (161) being an opposite side of the other of the pair of claw parts of the opening, the other of the pair of claw parts having a second return part (264) being hung on a second edge (162) facing the first edge in the opening.SELECTED DRAWING: Figure 9
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Description

[Technical Field]

[0001] The present invention relates to a display device. [Background technology]

[0002] For example, a conventional display device is composed of a display panel, a cover engaged with the display panel, a chassis that holds the cover, a circuit board that generates a video signal from an input signal to be output to the display panel, and a cabinet that covers the circuit board. In recent years, in the process of attaching the cabinet to the chassis, the number of screw fastening points has been increasingly reduced to reduce the number of steps and to improve repairability.

[0003] Patent Document 1 discloses a technique for fixing a cover and a chassis by engagement, in which a protrusion on the chassis is inserted into an opening provided in the cover, thereby engaging the chassis and the cover. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-106632 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with the above-mentioned conventional technology, it is possible that the protrusions may fall off the openings due to differences in thermal expansion between the cover and the chassis. This phenomenon is particularly likely to occur when the cover and the chassis are made of different materials and have different thermal expansion coefficients. Furthermore, the protrusions may fall off even when the cover and the chassis are at different temperatures and have different degrees of thermal expansion due to differences in the distances from the heat source.

[0006] An object of one aspect of the present invention is to provide a display device in which the chassis and the cabinet are properly engaged with each other. [Means for solving the problem]

[0007] In order to solve the above problems, a display device according to one embodiment of the present invention comprises a chassis having an opening, a cabinet having a pair of claw portions that are inserted into and engage with the opening, and covering the chassis, one of the pair of claw portions having a first return portion that engages with a first edge of the opening opposite the other of the pair of claw portions, and the other of the pair of claw portions having a second return portion that engages with a second edge of the opening that faces the first edge. [Effects of the Invention]

[0008] According to one aspect of the present invention, a display device in which the chassis and the cabinet are properly engaged with each other can be realized. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view showing the appearance of a display device according to a first embodiment. [Figure 2] FIG. 2 is a front view of the chassis according to the first embodiment. [Figure 3] FIG. 2 is a right side view of the chassis according to the first embodiment. [Figure 4] FIG. 2 is a perspective view of the opening according to the first embodiment as viewed from the rear side. [Figure 5] FIG. 2 is a front view of the cabinet according to the first embodiment. [Figure 6] 6 is a cross-sectional view taken along the line BB in FIG. 5, showing the configuration of the cabinet according to the first embodiment. [Figure 7] 3 is a perspective view of a base and a claw portion according to the first embodiment, as viewed from the front side. FIG. [Figure 8] 3 is a cross-sectional view taken along the line AA in FIG. 2, showing how to assemble the chassis and the cabinet according to the first embodiment. [Figure 9] 10 is a cross-sectional view showing an engagement state between an opening 160 and a pair of claws 260 when the chassis and cabinet according to the first embodiment are fixed together. FIG. [Figure 10] FIG. 10 is a perspective view of a base and a claw portion according to a second embodiment, as viewed from the front side. [Figure 11] 10 is a cross-sectional view showing an engagement state between the opening and the pair of claws when the chassis and cabinet according to the second embodiment are fixed together. FIG. [Figure 12] FIG. 11 is a perspective view of an opening according to a third embodiment, as viewed from the rear side. [Figure 13] 11 is a cross-sectional view showing a state in which a pair of claws are inserted into an opening when the chassis and cabinet according to the third embodiment are engaged with each other. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] [Embodiment 1] Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS.

[0011] (Display device configuration) 1 is a perspective view showing the appearance of a display device 1 according to embodiment 1. The display device 1 includes a display panel 2, a chassis 100, a substrate (not shown), and a cabinet 200. The display panel 2 may have a bezel (not shown) around its periphery.

[0012] The display panel 2 is a liquid crystal display panel that displays images. The display panel 2 is not limited to a liquid crystal display panel, but may be an organic EL (Electro-luminescence) display panel.

[0013] The chassis 100 is a metal sheet member that maintains the strength of the display device 1. The display panel 2 and the chassis 100 are integrated together by some means such as engagement, fastening, or adhesion.

[0014] For example, the display panel 2 and the chassis 100 may be integrated with an adhesive or double-sided tape. Alternatively, a fixing member fixed with an adhesive may be provided on the surface of the display panel 2 opposite to the surface that displays images, and the chassis 100 may be fixed to the fixing member.

[0015] The substrate is a circuit board that includes a circuit for generating, from an input signal, a video signal to be output to the display panel 2. The substrate is fixed to a chassis 100.

[0016] The cabinet 200 is a resin member provided to prevent the adhesion of dirt, dust, etc. to the board. Therefore, the cabinet 200 is fixed to the chassis 100 by engagement, and covers the chassis 100.

[0017] (Chassis configuration) Fig. 2 is a front view of the chassis 100 according to embodiment 1. Fig. 3 is a right side view of the chassis 100 according to embodiment 1. The chassis 100 is formed by processing a single metal sheet.

[0018] The chassis 100 includes a plate-like portion 110 that extends in a substantially flat plate shape. The plate-like portion 110 may be substantially square or rectangular in front or rear view, but is not limited thereto. The chassis 100 includes bent portions 120 at the outer edge of the plate-like portion 110, with each of the four sides bent toward the front. The chassis 100 includes ears 130 that are further bent outward on the left and right sides of the bent portion 120 in front view. The ears 130 form planes parallel to the plate-like portion 110. The display panel 2 may be fixed to the ears 130 using screws, adhesive, or double-sided tape.

[0019] The chassis 100 has a pocket portion 140 that protrudes from the plate-shaped portion 110 toward the rear surface. The pocket portion 140 is composed of a first pocket 141 and a second pocket 142 that has a different shape from the first pocket. The first pocket 141 and the second pocket 142 may have the same shape. Alternatively, only the first pocket 141 or the second pocket 142 may be present.

[0020] The first pocket 141 is formed in one location in the center adjacent to the upper end of the plate-shaped portion 110. The first pocket 141 has an opening formed at the top. A slit extending downward is provided in the center of the first pocket 141. The second pocket 142 is formed in two locations, one on the left and one on the right, adjacent to the upper end of the plate-shaped portion 110, symmetrically with respect to the first pocket 141. The second pocket 142 has an opening formed at the top.

[0021] The chassis 100 has raised portions 150 that rise from the plate-shaped portion 110 toward the rear surface at two locations adjacent to the left and right ends of the plate-shaped portion 110. The raised portions 150 are elongated in the vertical direction.

[0022] Two rectangular openings 160 are provided in the raised portion 150, adjacent to the upper and lower ends of the raised portion in the longitudinal direction. Fig. 4 is a perspective view of the opening 160 according to the first embodiment, as viewed from the rear.

[0023] A first edge 161, which is one of the edges of the opening 160, is folded. A first folded portion 163 folded 180 degrees toward the rear side is formed on the first edge 161. A second edge 162 is formed on the edge of the opening 160 opposite the first edge 161. The second edge 162 may also be folded back like the first edge 161. Here, a second folded portion 164 folded 180 degrees is also formed on the second edge 162.

[0024] Here, the metal plate is folded back 180 degrees toward the rear side, but it may be folded back toward the front side. The term "folded back" refers to a state in which the metal plate is folded at an angle of approximately 180 degrees, and by folding back at the first edge, the surface around opening 160 and first folded back portion 163 become approximately parallel.

[0025] The number and shape of the openings are not limited, and may be any number and any shape (for example, circular), etc. When the shape of the opening 160 is, for example, circular, the opening 160 may be folded back all around.

[0026] (Cabinet configuration) Fig. 5 is a front view of the cabinet 200 according to the embodiment 1. Fig. 6 is a cross-sectional view taken along the line BB in Fig. 5, showing the configuration of the cabinet 200 according to the embodiment 1. The cabinet 200 is formed by injection molding using resin.

[0027] The cabinet 200 comprises a curved plate portion 210 (rear portion) whose rear surface is curved in a bow-like shape, a lattice-shaped reinforcing rib 220 protruding from the curved plate portion 210 toward the front side, and a plurality of edge portions 230 protruding from the four edges of the curved plate portion 210 toward the front side.

[0028] The cabinet 200 is formed with a guide portion 240 that protrudes inward from the upper edge portion 230. The guide portion 240 is composed of a first guide 241 and a second guide 242 that has a different shape from the first guide. The first guide 241 and the second guide 242 may have the same shape. Alternatively, only the first guide 241 or the second guide 242 may be provided.

[0029] The first guide 241 is tapered from the upper edge 230 to the tip of the first guide 241. A reinforcing rib 220 is integrally formed in the center of the first guide 241. The second guide 242 is tapered from the upper edge 230 to the tip of the second guide 242. The first guide 241 and the second guide 242 are sized to be inserted into the openings of the first pocket 141 and the second pocket 142, respectively, with a predetermined clearance taking thermal expansion into consideration.

[0030] The cabinet 200 is provided with two pedestals 250 on each side of the curved plate portion 210, at positions close to the left and right edge portions 230. The cabinet 200 also has a pair of claw portions 260 extending from each pedestal toward the front. The number of pairs of pedestals 250 and claw portions 260 is not particularly limited. Fig. 7 is a perspective view of the pedestal 250 and claw portions 260 according to the first embodiment, viewed from the front side.

[0031] The base 250 supports a pair of claws 260. The base 250 has a parallel surface 251 parallel to the front plane (display screen) of the display device 1, and a plurality of leg ribs 252 are formed from the curved plate portion 210 to the parallel surface 251. The upper surface side of the space surrounded by the parallel surface 251 and the leg ribs 252 is closed by a closing portion 253. In addition, a base rib (rib) 254 protrudes outward from the base 250 from the closing portion 253 to the curved plate portion 210 (the base rib 254 extends into the base 250).

[0032] One of the pair of claws 260 has a first plate-shaped portion 261 on a plane substantially parallel to the left and right edge portions 230, and the first plate-shaped portion 261 is supported by the base 250. The other of the pair of claws 260 has a second plate-shaped portion 262 on a plane substantially parallel to the left and right edge portions 230 different from the first plate-shaped portion 261, and the second plate-shaped portion 262 is supported by the base 250. The first plate-shaped portion 261 and the second plate-shaped portion 262 protrude from the parallel surface 251. In other words, the distance from the left and right edge portions 230 to the first plate-shaped portion 261 is different from the distance from the left and right edge portions 230 to the second plate-shaped portion 262.

[0033] A first bent portion 263 protrudes laterally from halfway through the first plate-shaped portion 261. A second bent portion 264 protrudes laterally from halfway through the second plate-shaped portion 262. The first bent portion 263 and the second bent portion 264 protrude in opposite directions, and both protrude in directions that widen outward from the first plate-shaped portion 261 and the second plate-shaped portion 262. The first bent portion 263 and the second bent portion 264 are tapered from the back side to the front side. This taper forms inclined surfaces 265 and 266 in the first bent portion 263 and the second bent portion 264, respectively.

[0034] The distance from the parallel surface 251 of the first plate-shaped portion 261 to the first turned portion 263 is equal to the distance from the parallel surface 251 of the second plate-shaped portion 262 to the second turned portion 264. In addition, the distance between the protruding portions of the first turned portion 263 and the second turned portion 264 is greater than the distance from the first edge 161 to the second edge 162.

[0035] (Chassis and cabinet assembly) Fig. 8 is a cross-sectional view taken along the line AA in Fig. 2, showing how to assemble the chassis 100 and the cabinet 200 according to the first embodiment. The chassis 100 and the cabinet 200 can be assembled by engaging them together.

[0036] The guide portion 240 is inserted into the pocket portion (rotation support portion) 140 of the chassis 100. That is, the first guide 241 is inserted into the first pocket 141, and the second guide 242 is inserted into the second pocket 142. A slit is provided in the center of the first pocket 141, so that it does not interfere with the reinforcing rib 220 formed in the center of the first guide 241. Furthermore, by inserting the reinforcing rib 220 into the slit, the cabinet 200 can be positioned relative to the chassis 100.

[0037] Thereafter, in a state where the chassis 100 and the cabinet 200 are not fixed to each other, the engagement between the pocket portion 140 of the chassis 100 and the guide portion 240 of the cabinet 200 is utilized to support the cabinet 200 in rotation relative to the chassis 100. At this time, the pocket portion functions as a simplified rotation axis (shaft). The "not fixed" state refers to a state where the claw portion 260 of the cabinet 200 is not inserted into the opening 160 of the chassis 100.

[0038] When the claws 260 of the cabinet 200 are not inserted into the opening 160 of the chassis 100, the cabinet 200 can rotate around the rotation axis. In this state, by pressing the cabinet 200 against the chassis 100, the pair of claws 260 are inserted into the opening 160. FIG. 9 is a cross-sectional view showing an engagement state between the opening 160 and the pair of claws 260 when the chassis 100 and the cabinet 200 according to the first embodiment are fixed together. FIG. 9 shows a cross section passing through the pair of claws 260. At this time, one of the claws 260 engages with the first edge 161 at the first return portion 263, and the other of the claws 260 engages with the second edge 162 at the second return portion 264. The first edge 161 is located on the opposite side of one of the pair of claws 260 from the other of the pair of claws 260.

[0039] 9, the distance from the first edge 161 to the second edge 162 is D1, and the distance from the tip of the first folded portion 263 to the tip of the second folded portion 264 is L1. The distance from the first plate-shaped portion 261 to the first edge 161 is D2, and the distance from the second plate-shaped portion 262 to the second edge 162 is D3. The distance from the first plate-shaped portion 261 to the thickest point of the first folded portion 263 is L2, and the distance from the second plate-shaped portion 262 to the thickest point of the second folded portion 264 is L3. The distance from the first plate-shaped portion 261 to the second plate-shaped portion 262 is L4.

[0040] When inserting the pair of claw portions 260 into the opening 160, L4 is sufficiently smaller than D1, and the first returning portion 263 can be inserted with the inclined surface 265 guided by the first bent portion 163, and the second returning portion 264 with the inclined surface 266 guided by the second bent portion 164. In addition, the first bent portion 163 and the second bent portion 164 prevent cut edges of the sheet metal from being formed at the first edge 161 and the second edge 162, reducing the likelihood of the claw portions 260 getting caught.

[0041] Furthermore, once inserted, the pair of claw portions 260 has L1 sufficiently larger than D1, and the first surface 267 of the first folded portion 263 and the first surface 268 of the second folded portion 264 come into contact with the peripheral surface of the opening 160, so that the pair of claw portions 260 do not easily come out of the opening 160. The peripheral surface of the opening 160 that comes into contact with the first surfaces 267, 268 is the surface (flat surface) on the front side of the chassis 100.

[0042] Furthermore, when the pair of claws 260 are inserted into the opening 160, the pair of claws 260 are inserted while moving in an arc, and therefore a load that causes the base 250 and the pair of claws 260 to fall in the radial direction of the arc is applied to the base 250 and the pair of claws 260. At this time, the blocking portion 253 and the base rib 254 perpendicular to the rotation axis can resist the applied load, preventing the base 250 and the pair of claws 260 from falling.

[0043] Furthermore, the first plate-shaped portion 261 is perpendicular to the rotation axis, the second plate-shaped portion 262 is perpendicular to the rotation axis, and one and the other of the pair of claws 260 are aligned along the direction of the rotation axis. Therefore, when the cabinet 200 is rotated around the rotation axis to engage with the chassis 100, a load perpendicular to the rotation axis (a load that tends to tilt the first plate-shaped portion 261 toward the radial direction of the arc) is applied to the first plate-shaped portion 261 and the second plate-shaped portion 262 due to their relationship of arc motion. Since the load is applied in the direction in which the first plate-shaped portion 261 and the second plate-shaped portion 262 have high rigidity, deformation of the first plate-shaped portion 261 and the second plate-shaped portion 262 is prevented. Furthermore, the distance between the edges of the opening 160 that are not engaged with the first folded portion 263 and the second folded portion 264 (upper and lower edges facing each other in the direction perpendicular to the rotation axis) can be made sufficiently large relative to the pair of claws 260. Even if the position of the rotation axis is misaligned, the pair of claws 260 can be inserted into the opening 160 appropriately.

[0044] The first plate-shaped portion 261 and the second plate-shaped portion 262 may be arranged parallel to the rotation axis. However, if the position of the rotation axis is misaligned, the positions of the pair of claw portions 260 and the first edge 161 and second edge 162 will also be misaligned, making it easy for a large load to be applied to one of the pair of claw portions 260.

[0045] The distance from parallel surface 251 to first folded portion 263 is equal to the distance from parallel surface 251 to second folded portion 264. Therefore, the load applied during insertion is equal to one of the pair of claw portions 260. In other words, the load is not concentrated on one of the pair of claw portions 260 but is equalized, so that excessive deformation of the pair of claw portions 260 can be prevented, and deformation of the pair of claw portions 260 can be prevented.

[0046] (Change in engagement due to thermal expansion) The components of the display device 1 undergo thermal expansion due to heat generated by the display panel 2 and the substrate. Generally, the resin used in the cabinet 200 has a higher thermal expansion coefficient than the metal used in the chassis 100, so the cabinet 200 expands or contracts more than the chassis 100 due to thermal expansion. The expansion or contraction spreads from the center of the components toward the periphery. The temperature of each part is affected by the distance from the heat source and the insulation / heat dissipation structure.

[0047] Therefore, when the cabinet 200 expands, the pair of claws 260 move outward (to the left in FIG. 9) relative to the opening 160. That is, D3 increases, D2 decreases, and the first plate-shaped portion 261 and the first edge 162 engage with each other. At this time, since L3 is sufficiently larger than D3, the second folded portion 264 is prevented from slipping off the second edge 162. For example, L1-L2>D1 may be satisfied.

[0048] Similarly, when the cabinet 200 contracts, the pair of claws 260 move inward (to the right in FIG. 9) relative to the opening 160. That is, D2 increases, D3 decreases, and the second plate-shaped portion 262 and the second edge 162 engage with each other. At this time, since L2 is sufficiently larger than D2, the first folded portion 263 is prevented from coming off the first edge 161. For example, L1-L3>D1 may be satisfied. In addition, to allow for thermal expansion or contraction, L1-L2-L3 <D1であってもよい。

[0049] Here, if there were only one of the pair of claw portions 260, the engagement could be released due to expansion or contraction. Specifically, if the first plate-shaped portion 261 and the first folded portion 263 were not provided and only the second plate-shaped portion 262 and the second folded portion 264 were provided, when the cabinet 200 expanded, D3 could become larger than L3, and the second folded portion 264 could come off the second edge 162. Similarly, if the second plate-shaped portion 262 and the second folded portion 264 were not provided and only the first plate-shaped portion 261 and the first folded portion 263 were provided, when the cabinet 200 contracted, D2 could become larger than L2, and the first folded portion 263 could come off the first edge 161.

[0050] Therefore, the presence of the pair of claws 260 can prevent the engagement between the chassis 100 and the cabinet 200 from being released due to thermal expansion.

[0051] [Embodiment 2] Other embodiments of the present invention will be described below. For ease of explanation, the same reference numerals will be used to designate components having the same functions as those described in the above embodiment, and the description thereof will not be repeated.

[0052] In the first embodiment, the first surfaces 267 and 268 of the first folded portion 263 and the second folded portion 264 contact the surface around the opening 160. Furthermore, in the first embodiment, in order to release the engagement between the chassis 100 and the cabinet 200, it is necessary to press the first folded portion 263 and the second folded portion 264 until L1 becomes smaller than D1. Therefore, in the cabinet 200 having a plurality of claw portions 260, it is necessary to press each of the claw portions 260 at the same time, and it is not easy to release the engagement from the chassis 100. Furthermore, because the cabinet 200 completely covers the opening 160 of the chassis 100, once the chassis 100 and the cabinet 200 are engaged, there is no space to insert a hand or the like, and therefore it is not easy to release the engagement.

[0053] Therefore, in the second embodiment, a structure that allows the cabinet 200 to be disengaged from the chassis 100 is realized.

[0054] Fig. 10 is a perspective view of the base 250 and the claw portions 260a according to embodiment 2, as viewed from the front side. Fig. 11 is a cross-sectional view showing an engagement state between the opening 160 and the pair of claw portions 260a when the chassis 100 and the cabinet 200 according to embodiment 2 are fixed together. Fig. 11 shows a cross section passing through the pair of claw portions 260a.

[0055] (Engagement by the first surface and disengagement by the second surface) In the second embodiment, when the first folded portion 263a is engaged with the first edge 161, the first folded portion 263a is located on the opposite side of the rotation axis from the first surface 267, and has a second surface 267a that extends obliquely from the first surface 267 and faces the peripheral surface of the opening 160. Furthermore, when the second folded portion 264a is engaged with the second edge 162, the second folded portion 264a is located on the opposite side of the rotation axis from the first surface 268, and has a second surface 268a that extends obliquely from the first surface 268 and faces the peripheral surface of the opening 160. In other words, the first folded portion 263a has, on the opening 160 side, a first surface 267 that is parallel to the peripheral surface of the opening 160 and a second surface 267a that is inclined with respect to the peripheral surface of the opening 160. The second folded portion 264a has, on the opening 160 side, a first surface 268 that is parallel to the surface around the opening 160, and a second surface 268a that is inclined with respect to the surface around the opening 160.

[0056] That is, the first surface 267 and the second surface 267a form an obtuse angle, and the first surface 268 and the second surface 268a form an obtuse angle. Furthermore, the second surface 267a and the surface surrounding the opening 160 form an acute angle, and the second surface 268a and the surface surrounding the opening 160 form an acute angle. Therefore, by pushing (pulling) the claw portion 260 toward the opening 160, the first edge 161 and the second surface 267a come into contact, and the second edge 162 and the second surface 268a come into contact, and the first plate-shaped portion 261 and the second plate-shaped portion 262 bend along the slopes of the second surfaces 267a and 268a. As a result, L1 can be made smaller than D1, and the engagement can be released.

[0057] (Disengagement by recess) The claw portion 260a has a first folded portion 263a and a second folded portion 264a, which form recesses 265a and 266a, while leaving rib-shaped partial sloped surfaces 265 and 266. The recesses 265a and 266a are located outside the tips of the pair of claw portions 260a, respectively, and have flat surfaces that are parallel to each other.

[0058] Therefore, when disengaging the cabinet 200 from the chassis 100, the tips (recesses 265a, 266a) of the pair of claws 260 can be pinched with fingers from the outside to press the flat surfaces of the recesses 265a, 266a, making L1 smaller than D1, and thus the engagement can be easily released. Here, if the recesses 265a, 266a did not exist, the inclined surfaces 265, 266 would be pressed, and the force would be lost due to the inclination, making it difficult to press.

[0059] Therefore, by forming the recesses 265a, 266a in the first folded portion 263a and the second folded portion 264a, the engagement can be easily released.

[0060] [Embodiment 3] Other embodiments of the present invention will be described below. For ease of explanation, the same reference numerals will be used to designate components having the same functions as those described in the above embodiment, and the description thereof will not be repeated.

[0061] In the first embodiment, when the chassis 100 and the cabinet 200 are engaged with each other, the inclined surface 265 contacts the first edge 161, and the inclined surface 266 contacts the second edge 162. Therefore, by pushing the cabinet 200 toward the chassis 100, the first plate-shaped portion 261 and the second plate-shaped portion 262 bend, and L1 naturally becomes smaller than D1, allowing them to engage with each other.

[0062] At this time, both the chassis 100 and the cabinet 200 are large members, and are only loosely supported by the rotation shaft (particularly the first pocket 141 and the first guide 241). Therefore, if the cabinet 200 is misaligned with respect to the chassis 100, simply pushing the cabinet 200 into the chassis 100 may not properly position the claw portion 260 in the opening 160, and may not properly engage with it.

[0063] (Engagement by raised portion) In the third embodiment, measures are taken to prevent such a situation as much as possible. Fig. 12 is a perspective view of the opening 160a according to the third embodiment as seen from the rear side. Fig. 13 is a cross-sectional view showing a state in which a pair of claws 260a are inserted into the opening 160a when the chassis 100 and the cabinet 200 according to the third embodiment are engaged with each other.

[0064] In the third embodiment, a first rising portion (rising portion) 163a and a second rising portion (rising portion) 164a are formed on a first edge 161 and a second edge 162 of the opening 160, respectively, instead of the first folded portion 163 and the second folded portion 164 of the first embodiment. Specifically, the metal plate constituting the chassis is bent at the first edge 161, and the first rising portion 163a is formed rising obliquely from the first edge 161 toward the cabinet 200. The metal plate is bent at the second edge 162, and the second rising portion 164a is formed rising obliquely from the second edge 162.

[0065] The angle formed by the first rising portion 163a and the second rising portion 164a is larger than the angle formed by the inclined surfaces 265 and 266 of the pair of claw portions 260a. Therefore, the first rising portion 163a and the second rising portion 164a function to guide the insertion of the pair of claw portions 260. There may be only the first rising portion 163a, without the second rising portion 164a.

[0066] 〔summary〕 A display device according to aspect 1 of the present invention comprises a chassis having an opening, a cabinet having a pair of claw portions that are inserted into and engage with the opening, and covering the chassis, one of the pair of claw portions having a first return portion that engages with a first edge of the opening opposite the other of the pair of claw portions, and the other of the pair of claw portions having a second return portion that engages with a second edge of the opening that is opposite the first edge.

[0067] According to the above configuration, the first folded portion engages with the first edge, and the second folded portion engages with the second edge, thereby preventing the claw portion from slipping out of the opening, thereby enabling the chassis and the cabinet to be properly engaged.

[0068] A display device according to aspect 2 of the present invention is, in the above aspect 1, such that the chassis has a raised portion that guides the insertion of the pair of claw portions into the opening, and that rises diagonally from the first edge toward the cabinet.

[0069] According to the above configuration, the claw having the first folded portion is guided by the rising portion, which makes it easier to position the claw with respect to the opening when the claw is inserted into the opening, and makes it easier for the first folded portion to come into contact with the first edge, making it easier to insert the claw into the opening.

[0070] A display device according to a third aspect of the present invention is the display device according to the first or second aspect, wherein the metal plate constituting the chassis may be bent at the first edge of the opening.

[0071] According to the above configuration, when the claw portion is inserted into the opening, the metal plate is bent at the first edge, so there is no edge at the first edge, which prevents the first folded portion from getting caught on the first edge.

[0072] A display device according to a fourth aspect of the present invention is based on the first aspect, and the metal plate constituting the chassis may be folded back at the first edge of the opening.

[0073] According to the above configuration, when the claw portion is inserted into the opening, the metal plate is folded back 180 degrees at the first edge, so there is no edge at the first edge, which prevents the first folded portion from getting caught on the first edge.

[0074] A display device according to aspect 5 of the present invention is any of aspects 1 to 4 above, wherein the chassis has a rotational support portion, and the cabinet is rotatable around the rotational support portion as an axis when the pair of claw portions are not inserted into the opening, and one and the other of the pair of claw portions may be aligned along the direction of the axis.

[0075] According to the above configuration, one and the other of the pair of claws are aligned along the axis and are inserted into the opening by rotating around the axis. Therefore, when the claws are inserted into the opening, one and the other are inserted simultaneously, which distributes the load and prevents the claws from being excessively deformed. Furthermore, because the claws are inserted into the opening simultaneously, only one claw is inserted into the opening, preventing the other claw from getting caught in the opening. Furthermore, because the claws rotate around the axis and are inserted into the opening, it is easy to position the claws relative to the opening.

[0076] A display device according to aspect 6 of the present invention may be such that, in aspect 5 above, one of the pair of claw portions has a first plate-shaped portion perpendicular to the axis, with the first folded portion protruding laterally from the first plate-shaped portion, and the other of the pair of claw portions has a second plate-shaped portion perpendicular to the axis, with the second folded portion protruding laterally from the second plate-shaped portion.

[0077] According to the above configuration, when the claw portion is inserted into the opening, a load generated by rotation about the axis is applied to the claw portion, but since the vector of the stress (load) and the longitudinal direction of the first plate-shaped portion and the second plate-shaped portion are approximately aligned, the rigidity is high and deformation of the claw portion can be prevented.

[0078] A display device according to aspect 7 of the present invention is such that, in aspect 6 above, the cabinet has a base that supports the first plate-shaped portion and the second plate-shaped portion, and the distance from the base to the first folded portion on the first plate-shaped portion may be the same as the distance from the base to the second folded portion on the second plate-shaped portion.

[0079] With this configuration, the distance from the base to the first folded portion is the same as the distance from the base to the second folded portion, so the load applied when inserting the claws into the opening is distributed evenly to one side and the other side of the claws, preventing excessive deformation of the claws.

[0080] A display device according to aspect 8 of the present invention is any of aspects 5 to 7 above, wherein the first folded portion has a first surface that contacts the peripheral surface of the opening of the chassis when the first folded portion is hooked onto the first edge, and the first folded portion may have a second surface that is located on the opposite side of the axis from the first surface when the first folded portion is hooked onto the first edge, extends diagonally from the first surface, and faces the peripheral surface of the opening.

[0081] According to the above configuration, since the first folded portion has the second surface, when the claw portion is removed from the opening, the second surface comes into contact with the first edge, thereby guiding the movement of the first folded portion, making it possible to remove the claw portion from the opening.

[0082] A display device according to a ninth aspect of the present invention is the display device of the eighth aspect, wherein the cabinet may have a rib that extends to the base and is perpendicular to the axis.

[0083] According to the above configuration, when the claw portion rotates around the axis and is inserted into the opening, it is possible to resist the load applied to the claw portion and the base, thereby preventing excessive deformation of the claw portion and the base.

[0084] A display device according to a tenth aspect of the present invention is the display device of any one of the first to ninth aspects, wherein the tips of the pair of claws may have outer surfaces that are parallel to each other.

[0085] According to the above configuration, the tip of the claw portion can be gripped and the claw portion can be easily deformed, so that the claw portion can be easily removed from the opening.

[0086] A display device according to an eleventh aspect of the present invention is the display device according to any one of the first to tenth aspects, wherein the chassis is made of metal and the cabinet is made of resin.

[0087] According to the above configuration, by making the chassis from metal and the cabinet from resin, only the cabinet can be easily deformed relative to the chassis, and the claws can easily engage with the openings.

[0088] [Additional Notes] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment. [Explanation of symbols]

[0089] 1 Display device 2 Display panel 100 chassis 140 Pocket section (rotation support section) 141 First Pocket 142 Second Pocket 160, 160a aperture 161 First Edge 162 Second Edge 163 First bending part 164 Second bending part 165 First rising part (rising part) 166 Second rising part (rising part) 200 Cabinets 240 Guide section 241 First Guide 242 Second Guide 250 pedestal 251 parallel surfaces 252 Leg rib 253 Occlusion 254 Base rib 260 Claw 261 First plate-shaped part 262 Second plate-shaped part 263, 263a First return part 264, 264a Second return part 265, 266 Slope 265a, 266a recesses

Claims

1. a chassis having an opening; a cabinet having a pair of claws inserted into and engaging with the opening, the cabinet covering the chassis; one of the pair of claw portions has a first folded portion that engages with a first edge of the opening on the opposite side to the other of the pair of claw portions; the other of the pair of claw portions has a second folded portion that engages with a second edge of the opening that faces the first edge, the chassis has a rotation support portion, the cabinet is rotatable about the rotation support portion when the pair of claw portions are not inserted into the openings, A display device, wherein one and the other of the pair of claw portions are aligned along the axial direction.

2. The display device according to claim 1 , wherein the chassis has a rising portion that guides insertion of the pair of claws into the opening, the rising portion rising obliquely from the first edge toward the cabinet.

3. The display device according to claim 1 , wherein the metal plate constituting the chassis is bent at the first edge of the opening.

4. The display device according to claim 1 , wherein the metal plate constituting the chassis is folded back at the first edge of the opening.

5. One of the pair of claw portions has a first plate-shaped portion perpendicular to the axis, The first folded portion protrudes laterally from the first plate-shaped portion, the other of the pair of claw portions has a second plate-shaped portion perpendicular to the axis, The display device according to claim 1 , wherein the second folded portion projects laterally from the second plate-shaped portion.

6. the cabinet has a base that supports the first plate-shaped portion and the second plate-shaped portion, The display device according to claim 5 , wherein a distance from the base to the first folded portion on the first plate-shaped portion is the same as a distance from the base to the second folded portion on the second plate-shaped portion.

7. the first folded portion has a first surface that contacts a peripheral surface of the opening of the chassis when the first folded portion is hooked onto the first edge; 7. The display device according to claim 1, wherein the first folded portion is located on the opposite side of the axis from the first surface when the first folded portion is hooked onto the first edge, and has a second surface that extends obliquely from the first surface and faces the surface surrounding the opening.

8. The display device according to claim 6 , wherein the cabinet has a rib extending to the base perpendicular to the axis.

9. The display device according to claim 1 , wherein the tips of the pair of claws have outer surfaces that are parallel to each other.

10. The display device according to claim 1 , wherein the chassis is made of metal and the cabinet is made of resin.

Citation Information

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