JP2008276035A - Electronic equipment, display device and protective cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a display body from being damaged, even if the display body receives shocks due to drop. <P>SOLUTION: A honeycomb sandwich panel 30 has a structure with a honeycomb core sandwiched in between a first plate and a second plate. The display body 10 for displaying an image displays the image by driving display elements by electrodes formed on a glass substrate. The display body 10 is attached to the honeycomb sandwich panel 30 by an adhesive layer 40. The adhesive layer 40 has adhesive layers on the front and rear surfaces a material layer which is acrylic foam. The adhesive layer 40 is stuck to the honeycomb sandwich panel 30 by the adhesive layer of the rear face, and the display body 10 is attached to the adhesive layer of the front face. The display body 10 is reinforced by the honeycomb sandwich panel 30 and becomes less apt to be damaged, even if it receives a shock. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a technique for reinforcing a display body.

  There is a terminal called a so-called electronic book terminal that stores content such as a book and displays the stored content on a display having storage properties. The size of this e-book terminal is portable, and it is possible to browse the content by hand as with a normal book, but it may fall if it is carried and carried Becomes higher. In an electronic book terminal, a display body using cholesteric liquid crystal is used, and a glass substrate is used to drive the cholesteric liquid crystal, but when dropped, the glass breaks due to impact. Sometimes.

  As a technique for preventing breakage of the display body using glass, for example, there is a technique disclosed in Patent Document 1. In the display disclosed in Patent Document 1, liquid crystal is sealed between a first substrate and an second substrate on which electrodes are formed on transparent glass. In the display body of Patent Document 1, since the first substrate and the second substrate are cantilevered, each substrate is prevented from being bent and deformed even when a load is applied, and the substrate is prevented from cracking.

JP 2005-173393 A

  By the way, in the display body disclosed in Patent Document 1, since the substrate sealing the liquid crystal is cantilevered, bending deformation occurs and stress is relieved, but on the other hand, it is supported. Since the portion is repeatedly bent and deformed each time a load is applied, there is a possibility that the force concentrates on the supporting portion and breaks.

  The present invention has been made under the above-described background, and an object of the present invention is to provide a technique in which a display body is not easily damaged even when subjected to an impact caused by dropping.

  In order to solve the above-described problems, the present invention provides a plurality of display elements used for displaying an image, a plate-like display body having a substrate provided with a plurality of electrodes for driving the display elements, and the display body. The adhesive layer is provided on the back surface opposite to the surface on which the image is visually recognized, has adhesiveness, and deforms when an external force is applied; a honeycomb core; and one end surface in the height direction of the honeycomb core A honeycomb panel having a first flat plate fixed to an adhesive layer and a second flat plate fixed to the other end surface in the height direction of the honeycomb core, wherein the first flat plate is bonded to the adhesive layer; There is provided an electronic device including a circuit for driving a body and having a circuit board disposed to face a surface of the second flat plate on which the honeycomb core is not fixed.

  According to the present invention, a plurality of display elements used for displaying an image, a plate-like display body having a substrate provided with a plurality of electrodes for driving the display elements, and the image is visually recognized on the display body. An adhesive layer that is provided on the back surface opposite to the front surface, has adhesiveness, and deforms when an external force is applied; a honeycomb core in which one end surface in the height direction of the cell is bonded to the adhesive layer; Provided is an electronic device that includes a circuit that drives the display body and includes a circuit board that is disposed so as to face a surface of the honeycomb core to which the adhesive layer is not bonded.

In the present invention, the density of cells in the honeycomb core in a predetermined region near the heat generating portion that generates heat in the circuit board may be different from the density of cells in the honeycomb core outside the predetermined region.
In the present invention, the material of the honeycomb core in a predetermined region near the heat generating portion that generates heat in the circuit board may be different from the material of the cells of the honeycomb core outside the predetermined region.
In the present invention, the adhesive layer may not be provided in a predetermined region near the heat generating portion that generates heat in the circuit board.
Moreover, in this invention, the power supply part for driving the said electronic device may be arrange | positioned between the side wall of the housing | casing of the said electronic device, and the side surface of the said honeycomb core.

  In addition, the present invention provides a display device having a plurality of display elements used for displaying an image, a substrate having a plurality of electrodes for driving the display elements, a honeycomb core, and a height of the honeycomb core. A honeycomb panel having a first flat plate fixed to one end surface in the vertical direction and a second flat plate fixed to the other end surface in the height direction of the honeycomb core, the peripheral portion of the first flat plate An electronic device comprising: a honeycomb panel having a plurality of flanges; and the plurality of flanges are fitted to a peripheral edge of the display body so that the honeycomb panel is attached to the display body. provide.

  According to the present invention, a plurality of display elements used for displaying an image, a plate-like display body having a substrate provided with a plurality of electrodes for driving the display elements, and the image is visually recognized on the display body. Provided on the back surface opposite to the surface to be bonded, has an adhesive property, is deformed when an external force is applied, a honeycomb core, and a first fixed to one end surface in the height direction of the honeycomb core. There is provided a display device having a flat plate and a second flat plate fixed to the other end surface in the height direction of the honeycomb core, and the honeycomb plate in which the first flat plate is bonded to the adhesive layer.

  According to the present invention, a plurality of display elements used for displaying an image, a plate-like display body having a substrate provided with a plurality of electrodes for driving the display elements, and the image is visually recognized on the display body. An adhesive layer that is provided on the back surface opposite to the surface and has adhesiveness and deforms when an external force is applied; and a honeycomb core in which one end surface in the height direction of the cell is bonded to the adhesive layer. A display device is provided.

  The present invention also provides a protective member that covers the surface of an electronic device having a plate-shaped display, a side wall that covers a side surface of the electronic device, a honeycomb core, and one end face in the height direction of the honeycomb core. A first flat plate and a second flat plate fixed to the other end surface in the height direction of the honeycomb core, and the first flat plate has a honeycomb panel that can be attached to and detached from the back surface of the electronic device. Provide protective covers for electronic devices.

  FIG. 1 is an external view of an electronic apparatus 1 according to an embodiment of the present invention. The electronic device 1 is a so-called electronic book terminal, and stores electronic book data. In the electronic device 1, a display body 10 that displays an image and a key group 25 that is operated by a user are provided in the housing 20. When the user operates a key of the key group 25, stored data is stored. The content of the book to be displayed is displayed on the display body 10 according to the user's operation.

  Next, the internal configuration of the electronic device 1 will be described. 2 is a cross-sectional view taken along line AA in FIG. As shown in the figure, the electronic apparatus 1 has a circuit board 50, a honeycomb sandwich panel 30, and a display body 10 in a housing 20.

The circuit board 50 is a printed board having various circuits such as a drive circuit for driving the display body 10 and a control circuit for controlling each part of the electronic device 1. Each circuit of the circuit board 50 is connected to a power circuit (not shown) and is driven by electric power supplied from the power circuit. The circuit board 50 is connected to the display body 10, and the display body 10 is driven by a signal supplied from a drive circuit of the circuit board 50.

Next, the display body 10 is a reflective display body that performs image display using an electrophoretic element. First, the circuit configuration of the display body 10 will be described. FIG. 3 is a diagram illustrating a circuit configuration of the display body 10. As shown in FIG. 3, the display body 10 includes a plurality of source lines (source electrodes) S1 to Sm (m is an arbitrary integer of 2 or more) and a plurality of gate lines (gate electrodes) G1 to Gn (n is 2). Electrophoretic elements P11 to Pmn, holding capacitors HC11 to HCmn, and thin film transistors TR11 to TRmn are provided at positions where the above arbitrary integers) intersect in a matrix.
At each intersection where the source line and the gate line intersect, the electrophoretic element and the storage capacitor are connected in parallel, and the pixel electrodes (pixel electrodes PE11 to PEmn) of the electrophoretic element are connected to the drain electrode of the thin film transistor. It is connected. The common electrode CE shared by the electrophoretic elements P11 to Pmn is connected to the ground potential, and the gate electrodes of the thin film transistors TR11 to TRmn are connected to the corresponding gate lines G1 to Gn. The source electrode of TRmn is connected to the corresponding source lines S1 to Sm.

  Next, the structure of the display body 10 will be described. FIG. 4 is a diagram schematically showing the structure of the display body 10. As shown in FIG. 4, the display body 10 includes a first substrate 100, an electrophoretic element, a binder 101, and a second substrate 102. Has been. The first substrate 100 is a glass substrate, and a pixel electrode is provided on the surface side. The second substrate 102 facing the first substrate 100 is a transparent glass substrate, and a common electrode CE is provided on the back side. Between the pixel electrode and the common electrode CE, an electrophoretic element is fixed by a binder 101 and disposed. In FIG. 4, in order to prevent the figure from becoming complicated, the electrophoretic elements are denoted by reference numerals only for P11, P21, and P31, and the pixel electrodes are denoted by reference numerals only for PE11, PE21, and PE31. Yes.

  Under this configuration, the display body 10 is driven based on a conventionally known dot sequential drive system or line sequential drive system. Specifically, focusing on the electrophoretic element P11, the thin film transistor TR11 is activated by the gate signal applied from the gate line G1, and the voltage is held by the signal applied from the source line S1. Accumulated in HC11. The state of the electrophoretic element P11 transitions to “white” or “black” according to the magnitude of the voltage defined in the storage capacitor HC11.

  FIG. 5 is a cross-sectional view showing the structure and state of the electrophoretic element. Specifically, FIG. 5 (a) shows the state of the electrophoretic element that displays black, and FIG. 5 (b) shows white. The state of the electrophoretic element to be displayed is shown. The electrophoretic element is microencapsulated as shown in FIGS. 5A and 5B. More specifically, the electrophoretic element has, in the polymer film as the capsule wall CW, black pigment particles BG charged positively (+) and white pigment particles WG charged negatively (−) as core materials. The black pigment particles BG and the white pigment particles WG are stably maintained by the dispersion medium DM in the position state in the capsule wall CW defined by the electric field applied from the outside.

As shown in FIG. 5A, the electrophoretic element is given an electric field E1 from the back surface side to the front surface side in accordance with the storage capacity, and as a trigger, positive (+) is displayed. The charged black pigment particles BG move so as to approach the front surface side in the capsule wall CW, and the white pigment particles WG charged negatively (−) approach the back surface side in the capsule wall CW. Move to. Thus, since the electrophoretic element displays black on the surface side, the user can recognize black.

  On the other hand, when the electrophoretic element is to display white, as shown in FIG. 5B, the electrophoretic element is given an electric field E2 from the front surface side to the back surface side according to the holding capacity, and this is used as an opportunity to The particles WG move so as to approach the front surface side, and the black pigment particles BG move so as to approach the back surface side. Thus, since the electrophoretic element displays white on the surface side, the user can recognize white appearing on the surface side.

  Next, the configuration of the honeycomb sandwich panel 30 will be described. FIG. 6 is an exploded perspective view of the honeycomb sandwich panel 30. In FIG. 6, the dimensions of each part are different from the actual dimensions in order to show the structure in an easy-to-understand manner. As shown in FIG. 6, the honeycomb sandwich panel 30 is formed by a first flat plate 301, a first adhesive layer 302, a honeycomb core 310, a second adhesive layer 303, and a second flat plate 304. The first flat plate 301 and the second flat plate 304 are rectangular flat plates formed of aluminum, and the areas of the first flat plate 301 and the second flat plate 304 are larger than the area of the first substrate 100 of the display body 10. . The honeycomb core 310 is made of aluminum. In the present embodiment, the honeycomb core 310 has a shape in which a plurality of hexagonal spaces (cells) are gathered without gaps as viewed from above, like the honeycomb.

  When forming the honeycomb sandwich panel 30, first, an adhesive is applied to the surface of the second flat plate 304 to form the second adhesive layer 303. Then, one end face of the honeycomb core 310 in the height direction (direction orthogonal to the hexagonal cross section) is brought into close contact with the second adhesive layer 303 to fix the honeycomb core 310 to the second flat plate 304. Next, an adhesive is applied to any one surface of the first flat plate 301 to form the first adhesive layer 302, and on the surface opposite to the surface facing the second flat plate 304 in the honeycomb core 310, The first flat plate 301 on which the first adhesive layer 302 is formed is pressed to fix the honeycomb core 310 to the first flat plate 301. Thereby, a honeycomb sandwich panel in which the honeycomb core 310 is sandwiched between the first flat plate 301 and the second flat plate 304 is formed.

  In the present embodiment, first, the circuit board 50 is fixed at a position away from the housing 20 by a spacer 60 for keeping the distance between the housing 20 and the circuit board constant. Further, the honeycomb sandwich panel 30 is fixed above the circuit board 50 via the spacer 60. An adhesive layer 40 having the same size as that of the first flat plate 301 is provided on the surface of the first flat plate 301 on the front side of the honeycomb sandwich panel 30, and the display body 10 is placed on the surface of the adhesive layer 40. 10 is attached to the honeycomb sandwich panel 30. The area of the first flat plate 301 is larger than the area of the first substrate 100 of the display body 10, and the display body 10 is attached on the first flat plate 301 so as not to protrude from the first flat plate 301.

  In the present embodiment, the adhesive layer 40 for attaching the display body 10 to the honeycomb sandwich panel 30 has the structure shown in FIG. FIG. 7 is a view showing a cross section of the adhesive layer 40. As shown in the figure, the adhesive layer 40 is formed of a base material layer 403, a first adhesive layer 401, and a second adhesive layer 402. The first adhesive layer 401 and the second adhesive layer 402 are acrylic adhesives. The base material layer 403 is an acrylic foam and has flexibility.

In the electronic device 1, when a force is applied to the display body 10, mechanical deformation or vibration may occur in the display body 10. In addition, when the temperature change occurs in the electronic device 1, the display body 10 and the honeycomb sandwich panel 30 are made of different materials. Therefore, there is a difference in expansion / contraction between the display body 10 and the honeycomb sandwich panel 30 due to the temperature change. .
In the electronic device 1 according to the present embodiment, the display body 10 is attached to the honeycomb sandwich panel 30 by the adhesive layer 40, so that the display body 10 is supported by the surface and has high bending rigidity, and the glass substrate ( The first substrate 100 and the second substrate 102) are not easily damaged. Moreover, in the electronic device 1, since the adhesive layer 40 for attaching the display body 10 to the honeycomb sandwich panel 30 includes the flexible base material layer 403, the honeycomb sandwich panel due to mechanical deformation or temperature change. The difference between expansion and contraction between the display 30 and the display body 10 is also absorbed, and the possibility of breakage is reduced.

[Modification]
As mentioned above, although embodiment of this invention was described, this invention is not limited to embodiment mentioned above, It can implement with another various form. For example, the present invention may be implemented by modifying the above-described embodiment as follows.

  The display body 10 is not limited to an apparatus that displays an image using an electrophoretic element, and may be a display body that performs display using liquid crystal, for example. Moreover, the display body 10 may be one in which various electrodes and circuits are formed on a bendable transparent film instead of a glass substrate. The display body 10 is not limited to a reflective display body, and may be a liquid crystal display body provided with a backlight or a self-luminous display body using organic EL (Electro Luminescence).

  In the above-described embodiment, the base material layer 403 of the adhesive layer 40 only needs to be deformed when a force is applied, and may be a material other than acrylic foam. The adhesive layer 40 only needs to be deformable when a force is applied, and may be an elastic adhesive or a synthetic rubber adhesive having elasticity when cured.

In the embodiment described above, the cell shape of the honeycomb core 310 is a hexagon, but the cell shape of the honeycomb core 310 is not limited to a hexagon. For example, a rectangle (FIG. 8 (a)), a waveform (FIG. 8 (b)), a hexagonal central portion divided in half (FIG. 8 (c),
Other shapes such as a mountain shape (FIG. 8D) and a round shape (FIG. 8E) may be used. Moreover, the material of the 1st flat plate 301, the 2nd flat plate 304, and the honeycomb core 310 which comprise a honeycomb sandwich panel is not limited to aluminum. For example, paper may be used, and other metals such as stainless steel and titanium may be used. Further, it may be plastic, fiber reinforced plastic, resin containing carbon fiber, or the like.

  In the above-described embodiment, the honeycomb sandwich panel 30 is attached to the display body 10, but the first flat plate 301 is not provided, the second flat plate 304 is fixed to the spacer 60 side, and is bonded onto the honeycomb core 310. A layer 40 may be formed, and the display body 10 may be attached to the adhesive layer 40. Further, the honeycomb core 310 is fixed above the circuit board 50 through the spacer 60, the adhesive layer 40 is formed above the fixed honeycomb core 310, and the display body 10 is attached to the adhesive layer 40. Also good.

In the embodiment described above, the honeycomb sandwich panel 30 is attached to the back surface of the display body 10 as viewed from the user. However, as shown in FIG. 9, the honeycomb sandwich panel 30 is attached to the back surface of the electronic device 1. Also good.
Here, when the honeycomb sandwich panel 30 is attached to the back surface of the electronic device 1, the honeycomb sandwich panel 30 may be fixed to the electronic device 1 with screws.
Further, the hook-shaped member 31 shown in FIG. 10A is provided at the peripheral edge of the first flat plate 301 of the honeycomb sandwich panel 30, and the hook-shaped member 31 is fitted on the back side of the housing 20 of the electronic device 1. A hole to be fitted may be provided, and the hook-shaped member 31 may be fitted into the hole on the back side of the casing 20 so that the honeycomb sandwich panel 30 is fixed to the casing 20 by the hook-shaped member 31.
Further, in the configuration in which the honeycomb sandwich panel 30 is attached to the back surface of the display body 10, the hook-shaped member 31 is provided on the peripheral portion of the honeycomb sandwich panel 30, and as shown in FIG. You may make it attach the display body 10 to the honeycomb sandwich panel 30 by hooking the collar-shaped member 31 on the peripheral part of the board | substrate 100. FIG.

  In the above-described embodiment, as shown in FIGS. 11A and 11B, a protective cover 70 that protects the electronic device 1 may be attached to the electronic device 1. In this protective cover 70, the honeycomb sandwich panel 30 may be provided only on the back side of the electronic device 1 as shown in FIG. 11 (a), or as shown in FIG. The honeycomb sandwich panel 30 may also be provided on the protective member that covers the front side of the device 1. The protective cover may be removable.

  In the embodiment described above, the battery 80 serving as a power source for driving the electronic device 1 is disposed at a position that does not overlap the display body 10, the honeycomb sandwich panel 30, and the circuit board 50, as shown in FIG. Is preferred.

In the circuit board 50, there is a portion (heat generating portion) that generates heat due to the components of the circuit and has a higher temperature than other circuit portions. In the vicinity of this circuit, the adhesive layer 40 may not be provided between the honeycomb sandwich panel 30 and the display body 10. Further, the adhesive layer 40 is not provided on the entire surface of the first flat plate 301, but the display layer 10 is provided by providing the adhesive layer 40 only on a part of the first flat plate 301, such as a peripheral edge or a central portion of the first flat plate 301. You may make it attach to the honeycomb sandwich panel 30. FIG.
Further, in the honeycomb sandwich panel 30 fixed above the circuit board 50, the size of the cells of the honeycomb core 310 may be different between the vicinity of the heat generating part of the circuit board 50 and the other part. Specifically, in a predetermined area near the heat generating portion, the cell size may be reduced to increase the cell density, and in other portions, the cell size may be increased to reduce the cell density. .
Moreover, a hole may be made in the cell wall of the honeycomb core 310 so that air inside the cell can move to another cell.
In the honeycomb core 310, cells may be formed using members having different thermal conductivities in the vicinity of the heat generating portion of the circuit board 50 and other portions. For example, in a predetermined region near the heat generating portion, cells may be formed using a member having higher thermal conductivity than other portions.

  In the embodiment described above, the entire back surface of the display body 10 is attached to the honeycomb sandwich panel 30, but the entire back surface of the display body 10 may not be supported. For example, the honeycomb sandwich panel 30 may be attached only to the central part region on the back side of the display body 10, or the honeycomb sandwich panel 30 may be attached only to the peripheral part region of the display body 10.

  In the present invention, the honeycomb sandwich panel 30 may be attached to the back surface of the display body 10 with the adhesive layer 40 to form a unit, and the unitized display device may be attached to the housing 20. Alternatively, the honeycomb core 310 may be attached to the back surface of the display body 10 with the adhesive layer 40 to form a unit, and the unitized display device may be attached to the housing 20.

It is an external view of the electronic device 1 which concerns on one Embodiment of this invention. It is the sectional view on the AA line of FIG. 3 is a diagram illustrating a circuit configuration of a display body 10. FIG. 3 is a diagram schematically showing the structure of a display body 10. FIG. It is the figure which showed the structure and state of the electrophoretic element. 2 is an exploded perspective view of a honeycomb sandwich panel 30. FIG. 3 is a cross-sectional view showing a structure of an adhesive layer 40. FIG. It is the figure which illustrated the shape of the cell of honeycomb core 310 concerning a modification. It is an external view of the electronic device 1 which concerns on a modification. It is the elements on larger scale of the honeycomb sandwich panel 30 which concerns on a modification. It is an external view of the electronic device 1 which concerns on a modification. FIG. 3 is a diagram showing the position of a battery that drives the electronic device 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Electronic device, 10 ... Display body, 20 ... Housing | casing, 25 ... Key group, 30 ... Honeycomb sandwich panel, 31 ... Gutter-shaped member, 40 ... Adhesive layer 50 ... Circuit board 60 ... Spacer 70 ... Protection cover 80 ... Battery 100 ... First substrate 101 ... Binder 102 ... Second substrate 301 ... 1st flat plate, 302 ... 1st adhesive layer, 303 ... 2nd adhesive layer, 304 ... 2nd flat plate, 401 ... 1st adhesive layer, 402 ... 2nd adhesive layer 403 ... Base material layer

Claims (10)

A plurality of display elements used for displaying an image, and a plate-like display body having a substrate provided with a plurality of electrodes for driving the display elements;
An adhesive layer that is provided on the back surface opposite to the surface on which the image is visually recognized in the display body, has adhesiveness, and deforms when an external force is applied;
A honeycomb core, a first flat plate fixed to one end face in the height direction of the honeycomb core, and a second flat plate fixed to the other end face in the height direction of the honeycomb core, A honeycomb panel in which one flat plate is bonded to the adhesive layer;
An electronic apparatus comprising: a circuit board that includes a circuit that drives the display body, and is disposed to face a surface of the second flat plate on which the honeycomb core is not fixed. A plurality of display elements used for displaying an image, and a plate-like display body having a substrate provided with a plurality of electrodes for driving the display elements;
An adhesive layer that is provided on the back surface opposite to the surface on which the image is visually recognized in the display body, has adhesiveness, and deforms when an external force is applied;
A honeycomb core in which one end face in the height direction of the cell is bonded to the adhesive layer;
An electronic device comprising: a circuit board that includes a circuit that drives the display body, and is disposed to face a surface of the honeycomb core on which the adhesive layer is not bonded.   The density of the honeycomb core cells in a predetermined region near the heat generating portion that generates heat in the circuit board is different from the density of the honeycomb core cells outside the predetermined region. Electronic equipment.   The material of the honeycomb core in a predetermined region near the heat generating portion that generates heat in the circuit board is different from the material of the cells of the honeycomb core outside the predetermined region. The electronic device described.   5. The electronic device according to claim 1, wherein the adhesive layer is not provided in a predetermined region in the vicinity of a heat generating portion that generates heat in the circuit board.   6. The power supply unit for driving the electronic device is disposed between a side wall of a casing of the electronic device and a side surface of the honeycomb core. The electronic device described. A plurality of display elements used for displaying an image, and a plate-like display body having a substrate provided with a plurality of electrodes for driving the display elements;
A honeycomb panel having a honeycomb core, a first flat plate fixed to one end face in the height direction of the honeycomb core, and a second flat plate fixed to the other end face in the height direction of the honeycomb core. A honeycomb panel having a plurality of flanges on the peripheral edge of the first flat plate,
The electronic device, wherein the plurality of eaves portions are fitted to a peripheral portion of the display body, and the honeycomb panel is attached to the display body. A plurality of display elements used for displaying an image, and a plate-like display body having a substrate provided with a plurality of electrodes for driving the display elements;
An adhesive layer that is provided on the back surface opposite to the surface on which the image is visually recognized in the display body, has adhesiveness, and deforms when an external force is applied;
A honeycomb core, a first flat plate fixed to one end surface in the height direction of the honeycomb core, and a second flat plate fixed to the other end surface in the height direction of the honeycomb core, And a honeycomb panel having a flat plate bonded to the adhesive layer. A plurality of display elements used for displaying an image, and a plate-like display body having a substrate provided with a plurality of electrodes for driving the display elements;
An adhesive layer that is provided on the back surface opposite to the surface on which the image is visually recognized in the display body, has adhesiveness, and deforms when an external force is applied;
And a honeycomb core having one end face in the height direction of the cell bonded to the adhesive layer. A protective member that covers the surface of the electronic device having a plate-like display;
A side wall covering a side surface of the electronic device;
A honeycomb core, a first flat plate fixed to one end face in the height direction of the honeycomb core, and a second flat plate fixed to the other end face in the height direction of the honeycomb core, A protective cover for an electronic device, wherein one flat plate has a honeycomb panel that can be attached to and detached from the back surface of the electronic device.

Images