electronic equipment

By routing the cable to bypass the adhesive tape's path using horizontally and vertically extending portions, the interference issue between the adhesive tape and cable is resolved, ensuring smooth peeling and maintaining component position in electronic devices.

JP7721777B1Active Publication Date: 2025-08-12レノボ·ジャパン合同会社
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Patent Information

Application Number
JP2024220748
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-08-12
Estimated Expiration
2044-12-17

AI Technical Summary

Technical Problem

The adhesive tape used to fix a display panel to a housing cover in electronic devices may interfere with cables when it is pulled and peeled off, potentially damaging the cable or requiring repositioning of attached components.

Method used

The cable is connected to the lamp by detouring from the adhesive tape's adhesive portion and tab, using a horizontally and vertically extending portion that avoids interference, allowing the cable to be routed around the adhesive tape's path, ensuring it does not obstruct the peeling process.

Benefits of technology

The solution prevents interference between the adhesive tape and cable during peeling, maintaining the position of attached components without the need for reattachment or replacement, and simplifies the assembly process.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide an electronic device that does not interfere with a cable of the electronic device when an adhesive tape is pulled and peeled off. [Solution] The electronic device (10) includes a first stretch-releasable adhesive tape (42) and a second adhesive tape (44) that secure a display panel (18) to a housing cover, a lamp (32) provided on the inner surface of the housing cover, and a cable (40) connected to the lamp (32). The lamp (32) is disposed on an extension line (L1) of a horizontally extending portion (42ba) and on an extension line (L2) of a vertically extending portion (42bb). The cable (40) is connected to the lamp (32) from an area (A1) that is closer to the second edge (28b) than the first adhesive portion (42a) and the horizontally extending portion (42ba) and closer to the fourth edge (28d) than the vertically extending portion (42bb). The cable (40) then crosses the first tab (42b) at a point including the horizontally extending portion (42ba) and detours to an area (A2) near the first edge (28a) before connecting to the lamp (32).
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Description

[Technical Field]

[0001] The present invention relates to an electronic device in which a display panel and a housing cover are fixed together with adhesive tape. [Background technology]

[0002] Electronic devices such as notebook PCs are equipped with a display panel such as a liquid crystal display. The back of the display panel is usually covered with a housing cover. In Patent Document 1, the display panel and the housing cover are fixed together with a stretchable adhesive tape. From the viewpoint of fixing strength, the adhesive tape is provided along the edge of the housing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-135928 Summary of the Invention [Problem to be solved by the invention]

[0004] An electronic device such as a lamp may be attached to the housing cover. The lamp is fixed to the inner surface of the housing cover, with only the light-emitting portion exposed on the rear side, for example. A cable is connected to the lamp. If a display panel is fixed to such a housing cover with adhesive tape, there is a concern that the adhesive tape may interfere with the cable of the electronic device when it is pulled and peeled off.

[0005] The present invention has been made in view of the above-mentioned problems, and has an object to provide an electronic device in which an adhesive tape does not interfere with a cable of the electronic device when the adhesive tape is pulled and peeled off. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the object, an embodiment of an electronic device according to the present invention is an electronic device comprising a rectangular housing cover having a first edge on the rear side of a display panel, a second edge opposite to the first edge, and third and fourth edges perpendicular to the first and second edges, the electronic device comprising: a first stretch-separable adhesive tape for fixing the display panel and the housing cover; an electronic device provided on the inner surface of the housing cover; and a cable connected to the electronic device, the first adhesive tape comprising a first adhesive portion along the first edge and a first tab for pulling operation connected to the first adhesive portion, the first tab comprising: The adhesive tape includes a horizontally extending portion extending further from the end of the first adhesive portion toward the third edge, and a vertically extending portion directly or indirectly connected to the horizontally extending portion and extending along the third edge to the second edge, the electronic device being positioned on the extension line of the horizontally extending portion or on the side of the second edge from the extension line, and on the extension line of the vertically extending portion or on the side of the third edge from the extension line, and the cable is connected to the electronic device by detouring from the area on the second edge side of the first adhesive portion and the horizontally extending portion and on the fourth edge side of the vertically extending portion, across the first tab at a point including the horizontally extending portion, to an area close to the first edge. [Effects of the Invention]

[0007] According to the above aspect of the present invention, when the adhesive tape is pulled and peeled, it does not interfere with the cable of the electronic device. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic plan view of an electronic device according to an embodiment, viewed from above. [Figure 2] FIG. 2 is a plan view showing the rear side of the first housing. [Figure 3] FIG. 3 is a schematic front view of the first housing with the bezel member and the display panel removed. [Figure 4] FIG. 4 is an enlarged view of the periphery of the intersection of the first edge and the third edge in FIG. [Figure 5]FIG. 5 shows the steps for removing the adhesive tape, where (a) shows the first step, (b) shows the second step, (c) shows the third step, and (d) shows the final step. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of an electronic device according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to these preferred embodiments.

[0010] FIG. 1 is a schematic plan view of an electronic device 10 according to one embodiment, viewed from above. As shown in FIG. 1, the electronic device 10 according to this embodiment is a clamshell-type notebook PC, and is configured such that a first housing 12 and a second housing 14 are connected by a hinge 16 so as to be rotatable relative to each other. The first housing 12 is equipped with a display panel 18. The second housing 14 is equipped with a keyboard 20, a touchpad 21, etc., facing an upper surface 14a, and is equipped with a motherboard, etc., internally. The electronic device according to the present invention may be, other than a notebook PC, for example, a standalone display device, a tablet PC, a mobile phone, a smartphone, a portable game console, or the like.

[0011] Hereinafter, the electronic device 10 will be described based on a state in which the first housing 12 is opened from the second housing 14 and the plane directions of the two are perpendicular to each other (a state in which the angle between the housings 12 and 14 is 90 degrees), and the left-right direction, as seen from the user viewing the display panel 18, will be referred to as the X1 and X2 directions, the up-down direction as the Y1 and Y2 directions, and the depth direction as the Z1 and Z2 directions. The X1 and X2 directions will sometimes be collectively referred to as the X direction, and the Y1, Y2 directions and the Z1, Z2 directions will sometimes be referred to similarly.

[0012] The first housing 12 is a flat box that is thinner than the second housing 14. The display surface 18a of the display panel 18 faces the Z1-side surface (front surface 12a) of the first housing 12. The first housing 12 has a housing cover 24 that forms the Z2-side surface (rear surface 12b) and a bezel member 26 that forms the peripheral edge of the front surface 12a. The top, bottom, left, and right side surfaces 12c of the first housing 12 are formed by upright walls 27 that stand up from the four peripheral edges of the housing cover 24. The hinge 16 connects the Y2-side edge of the first housing 12 and the Z2-side edge of the second housing 14.

[0013] The display panel 18 is configured, for example, with a liquid crystal display or an organic EL display. The display panel 18 has a structure in which, for example, glass, a liquid crystal layer, a light guide plate, etc. are laminated and the outer edges of each layer are fixed together with double-sided tape, adhesive, etc. The display panel 18 may be a touch panel type.

[0014] The housing cover 24 is a rectangle whose Y-direction dimension is smaller than its X-direction dimension in a front view, and the display panel 18 is a rectangle that is slightly smaller than the housing cover 24. In this application, the edge on the Y1 side is called the first edge 28a, the edge on the Y2 side is called the second edge 28b, the edge on the right side when viewed from the front is called the third edge 28c, and the edge on the left side is called the fourth edge 28d. In other words, the housing cover 24 is a rectangular member having the first edge 28a, the second edge 28b opposite the first edge 28a, and the third edge 28c and fourth edge 28d perpendicular to the first edge 28a and the second edge 28b, and covers the back side of the display panel 18.

[0015] A plurality of electronic devices 30 are provided in the center of the bezel member 26 along the first edge 28a, facing forward. The electronic devices 30 are, for example, a camera, a microphone, an infrared port, etc. Notches are formed near the left and right ends of the bezel member 26 along the second edge 28b, and are covered with covers 31.

[0016] FIG. 2 is a plan view showing the rear side of the first housing 12. Near the corner where the first edge 28a and third edge 28c of the housing cover 24 intersect, there is a small lamp (electronic device) 32 that indicates the power status, etc. The lamp 32 is provided on the inner surface of the housing cover 24, with the light-emitting portion 32a exposed on the outer surface. Because the lamp 32 is located in the corner, it is unlikely to be blocked by other objects. Because the lamp 32 is located above the first housing 12 when it is open relative to the second housing 14, it is easily visible from behind. The distance from the lamp 32 to the first edge 28a and the third edge 28c are approximately equal, providing a good balance in terms of design. Thus, it is preferable to place the lamp 32 in the corner of the housing cover 24. The lamp 32 is, for example, an LED.

[0017] Fig. 3 is a schematic front view of the first housing 12 with the bezel member 26 and the display panel 18 removed. Fig. 4 is an enlarged view of the area around the intersection of the first edge 28a and the third edge 28c in Fig. 3.

[0018] As described above, the electronic device 30 is provided along the first edge 28a of the housing cover 24. A plurality of electronic devices 30 are mounted together as a module 33. The first housing 12 and the second housing 14 are electrically connected by a flat cable 34. The flat cable 34 is, for example, an FPC, but other cables may also be used. The flat cable 34 is connected to the second housing 14 at a location slightly to the right of the first housing 12, then tilts midway toward the center, extends again in the Y1 direction, reaches the vicinity of the first edge 28a, and is connected to the module 33.

[0019] In this embodiment, the flat cable 34 branches into a first branch cable 36, a second branch cable 38, and a third branch cable 40. Of these, the first branch cable 36 and the second branch cable 38 run parallel to each other and reach the vicinity of the first edge 28a. The second branch cable 38 is adjacent to the right of the first branch cable 36 and is thinner than the first branch cable 36. The third branch cable 40 branches off further from the tip of the second branch cable 38 and is connected to the lamp 32. The third branch cable 40 is also simply referred to as the cable 40. The cable 40 will be described in more detail below.

[0020] The housing cover 24 and the display panel 18 are fixed together by a first adhesive tape 42, a second adhesive tape 44, a third adhesive tape 46, and a fourth adhesive tape 48. These adhesive tapes are double-sided and have the property of being stretchable and releasable, and are known as stretch-release tape, stretch double-sided tape, or stretchable tape. Such components have the property of having high adhesive strength when not stretched, but the adhesive strength decreases when stretched. Each adhesive tape is essentially separate.

[0021] The first adhesive tape 42 has a first adhesive portion 42a and a first tab 42b. The second adhesive tape 44 has a second adhesive portion 44a and a second tab 44b. The third adhesive tape 46 has a third adhesive portion 46a and a third tab 46b. The fourth adhesive tape 48 has a fourth adhesive portion 48a and a fourth tab 48b. Each adhesive portion is an adhesive portion. Each tab is an adhesive portion for pulling operation and does not have adhesive properties. Each adhesive portion is indicated by a dotted background.

[0022] The second adhesive tape 44 is linear. The second adhesive portion 44a is provided along almost the entire length, immediately adjacent to the third edge 28c. The second tab 44b extends a short distance from the Y2-side end of the second adhesive portion 44a toward the second edge 28b. The second adhesive portion 44a is located between the first adhesive tape 42 and the third edge 28c.

[0023] The first adhesive portion 42a extends from the right vicinity of the module 33 toward the right, along the first edge 28a. The first tab 42b includes a horizontally extending portion 42ba that extends a short distance from the end of the first adhesive portion 42a toward the third edge 28c, a vertically extending portion 42bb that extends along the third edge 28c to the second edge 28b, and a bent portion 42bc that curves between the horizontally extending portion 42ba and the vertically extending portion 42bb and away from the first edge 28a and the third edge 28c. In other words, the horizontally extending portion 42ba and the vertically extending portion 42bb are indirectly connected via the bent portion 42bc. As will be described later, a ramp 32 is provided in the inner peripheral region of the curve formed by the bent portion 42bc. In other words, the bent portion 42bc is shaped to avoid the ramp 32. However, depending on the arrangement of the lamp 32, the bent portion 42bc may be omitted and the horizontally extending portion 42ba and the vertically extending portion 42bb may be directly connected to each other.

[0024] The third adhesive tape 46 has a configuration in which the bent portion 42bc of the first adhesive tape 42 is omitted, and is provided symmetrically with the first adhesive tape 42. The fourth adhesive tape 48 has the same shape as the second adhesive tape 44, and is provided symmetrically with the fourth adhesive tape 48.

[0025] The tips 42c, 44c, 46c, and 48c of the tabs 42b, 44b, 46b, and 48b extend to positions at the second edge 28b where they do not overlap the display panel 18. The tips 42c, 44c, 46c, and 48c are normally covered by the cover 31, but are exposed and can be pulled by removing the cover 31. To save space, the tips 42c and 44c, and the tips 46c and 48c may overlap.

[0026] As described above, the lamp 32 is located within the area avoided by the bent portion 42bc, specifically, part or all of the lamp 32 is located within the extension width of the horizontally extending portion 42ba and the vertically extending portion 42bb. This allows the lamp 32 to be appropriately positioned in the corner of the housing cover 24.

[0027] The cable 40 comprises a short first portion 40a connected to the second branch cable 38 in a crank-like configuration, a long second portion 40b extending laterally, and an inverted U-shaped third portion 40c connected to the lamp 32. The second portion 40b connects the first portion 40a and the third portion 40c. At least the third portion 40c and its vicinity are not adhered to the housing cover 24. The second portion 40b extends in a region A1 (see FIG. 4) on the Y2 side (the side of the second edge 28b) of the first adhesive portion 42a and the horizontally extending portion 42ba and on the X1 side (the side of the fourth edge 28d) of the vertically extending portion 42bb. In this embodiment, the second portion 40b is adjacent to and parallel to the first adhesive portion 42a on the Y2 side (the side of the second edge 28b) of the first adhesive portion 42a. Region A1 corresponds to roughly the lower left side of intersection C of L2, the extension line L1 of the horizontally extending portion 42ba and the vertically extending portion 42bb, in Fig. 4. In this embodiment, the second portion 40b is routed in region A1 rather than region A2 (see Fig. 4) because the third cable 40 branches off from the second cable 38 and because of its positional relationship with the module 33. Region A2 is on the Y1 side (the side closer to the first edge 28a) of the first adhesive portion 42a and the horizontally extending portion 42ba, and corresponds to roughly the upper left side of intersection C in Fig. 4.

[0028] The third portion 40c is a detour portion that crosses the horizontally extending portion 42ba and the bent portion 42bc of the first tab 42b, detouring to the region A2, and is connected to the lamp 32. The stacking pattern in this portion is the housing cover 24, the first tab 42b, the third portion 40c, and the display panel 18 in that order. That is, in the assembly process of the electronic device 10, the adhesive tapes 42, 44, 46, and 48 are already attached to the housing cover 24, and then the flat cable 34 including the cable 40 is placed thereon, and then the display panel 18 is attached. The third portion 40c of the cable 40 can be simply placed over the first tab 42b without having to pass under the first tab 42b, thereby reducing the assembly time.

[0029] In this embodiment, the third portion 40c not only overlaps the horizontally extending portion 42ba but also partially overlaps the bent portion 42bc, but basically straddles the first tab 42b at a location including the horizontally extending portion 42ba. The cable 40 is routed so as not to come into contact with the first adhesive portion 42a and the second adhesive portion 44a.

[0030] 5A and 5B are diagrams showing the procedure for removing the adhesive tapes 42 and 44, with (a) showing the first step, (b) showing the second step, (c) showing the third step, and (d) showing the final step. When removing the adhesive tapes 42 and 44, the cover 31 is removed to expose the tips 42c and 44c.

[0031] As shown in Fig. 5(a), first pull the tip 44c toward you to remove the second adhesive tape 44. As shown in Fig. 5(b), grasp the tip 42c and pull it up to the upper right. The vertically extending portion 42bb of the first tab 42b is pulled out from the gap between the housing cover 24 and the display panel 18.

[0032] 5(c), the vertically extending portion 42bb is oriented along the X direction, and the first adhesive tape 42 has a slightly wavy shape from the horizontally extending portion 42ba to the bent portion 42bc, but the first adhesive portion 42a and the first tab 42b are substantially linear along the X direction. At this time, the bent portion 42bc of the first adhesive tape 42 is mainly positioned inside the U-shape formed by the third portion 40c, and no excessive force is applied to the third portion 40c and the lamp 32.

[0033] When the first tab 42b is pulled toward the X2 side, the adhesive force of the first adhesive portion 42a is weakened, and the first adhesive portion 42a and the laterally extending portion 42ba are pulled out through the inside of the U-shape formed by the third portion 40c. At this time, no excessive force is applied to the third portion 40c or the lamp 32. As shown in FIG. 5(d), with the first tab 42b pulled out, the cable 40 and the lamp 32 remain correctly positioned. The fourth adhesive tape 48 is removed in the same manner as the second adhesive tape 44, and the third adhesive tape 46 is removed in the same manner as the first adhesive tape 42. Once the adhesive tapes 42, 44, 46, and 48 are removed, the display panel 18 can be removed from the housing cover 24.

[0034] As described above, in the electronic device 10 according to the present embodiment, the cable 40 is connected from the region A1 to the lamp 32 by bypassing the region A2, straddling the first tab 42b at a location including the laterally extending portion 42ba, and thus does not interfere with the cable 40 when the first adhesive tape 42 is pulled and peeled, as shown in FIGS. 5(b) to 5(d). When the display panel 18 is reattached, the lamp 32 is maintained in the correct position and does not need to be reattached or replaced. Furthermore, the first adhesive portion 42a of the first adhesive tape 42 can be passed under the second portion 40b of the cable 40 and positioned in a predetermined position.

[0035] As described above, the lamp 32 is located within the extension width of the extending portion 42aa and the extension width of the vertical extending portion 42bb. However, even if the lamp 32 is located on the extension line L1 of the horizontal extending portion 42ba or on the Y1 side of the extension line L1 and on the extension line L2 of the vertical extending portion 42bb or in region A3 on the X2 side of the extension line L2 (the right side in FIG. 4 ), the third portion 40c of the cable 40 detours from region A1 to region A2, straddling the first tab 42b at a point including the horizontal extending portion 42ba, thereby avoiding interference with the first adhesive tape 42. As shown by the imaginary line in FIG. 4 , if the lamp 32 is located in region A1 or region A2, the detour path via the third portion 40c is unnecessary. The connection destination of the cable 40 is not limited to the lamp 32, but may also be an electronic device such as a microphone, sensor, or indicator.

[0036] The present invention is not limited to the above-described embodiment, and can of course be freely modified within the scope of the gist of the present invention. [Explanation of symbols]

[0037] 10 Electronic equipment 12,14 Case 24 Housing cover 28a First Edge 28b Second Edge 28c Third Edge 28d Fourth Edge 31 Cover 32 Lamp (electronic device) 32a Light projector 34 Flat Cable 40 3rd branch cable (cable) 40a Part 1 40b Part 2 40c 3rd part 42 First adhesive tape 42a 1st adhesive part 42b First tab 42ba Lateral extension 42bb vertical extension part 42bc bent part 44 Second adhesive tape 44a 2nd adhesive part 44b 2nd tab 42c, 44c, 46c, 48c tip

Claims

1. An electronic device comprising a rectangular housing cover having a first edge on a rear side of a display panel, a second edge opposite to the first edge, and third and fourth edges perpendicular to the first and second edges, a first adhesive tape that is stretch-releasable and fixes the display panel and the housing cover; an electronic device provided on the inner surface of the housing cover; a cable connected to the electronic device; Equipped with the first adhesive tape includes a first adhesive portion along the first edge and a first tab connected to the first adhesive portion for pulling operation; the first tab includes a horizontally extending portion that extends from an end of the first adhesive portion toward the third edge, and a vertically extending portion that is directly or indirectly connected to the horizontally extending portion and extends along the third edge to the second edge; the electronic device is disposed on an extension line of the horizontally extending portion or on the second edge side of the extension line, and on an extension line of the vertically extending portion or on the third edge side of the extension line, The cable is connected to the electronic device by detouring from a region closer to the second edge than the first adhesive portion and the horizontally extending portion and closer to the fourth edge than the vertically extending portion, across the first tab at a location including the horizontally extending portion, to a region close to the first edge. An electronic device characterized by:

2. 10. The electronic device according to claim 1, a second adhesive tape that is separate from the first adhesive tape and is stretch-separable; The second adhesive tape includes a second adhesive portion between the first adhesive tape and the third edge, and a second tab for pulling operation extending from an end of the second adhesive portion to the second edge. An electronic device characterized by:

3. 3. The electronic device according to claim 1, the first tab includes a bent portion that is curved away from the first edge and the third edge between the horizontally extending portion and the vertically extending portion; At least a portion of the electronic device is located within the extension width of the horizontally extending portion and the extension width of the vertically extending portion. An electronic device characterized by:

Citation Information

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