JP2004294994A - Method for arranging sheet member, and display device equipped with sheet member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for arranging a sheet member which can deter an air bubble from being left between a 1st or 2nd surface and the sheet member and a display device equipped with the sheet member. <P>SOLUTION: The display device (display device for vehicle) 1 is equipped with a display unit 2 which is housed in a case body (housing) 3 having an opening part (1st opening part)3d, a protection member 4 which is arranged in the opening part 3d opposite the display unit 2, and the elastic sheet member 5 which is arranged between the 1st surface of the display unit 2 and the 2nd surface of the protection member 4. At least one of the 1st surface and 2nd surface is formed in a curved-surface shape or slanting shape. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for disposing a sheet member having an elastic sheet member between a first surface and a second surface, and a display device including the sheet member.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a display device, a display including a display panel including a fluorescent display tube (VFD), a liquid crystal display element, an organic EL (electroluminescence) element, or the like is housed in a predetermined case body, and predetermined information is stored by the display. Is known.
[0003]
Further, in the display device, in order to protect the display device, an opening is provided in a portion of the case body facing the display device, and a translucent protection member made of glass, a resin material, or the like is provided in the opening portion. Are arranged. Usually, a gap is provided between the display and the protection member to protect the display from an external impact or the like. However, there is a problem that external light incident on the gap or a part of the display light of the display is reflected in the gap, thereby lowering the visibility of the display.
[0004]
In order to solve this problem, there is a method in which a non-adhesive, flat rubber-like silicone-based sheet member having rubber elasticity is interposed between the display and the protective member (see Patent Document 1).
[0005]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2002-287119
[Problems to be solved by the invention]
However, such a display device has a configuration in which the sheet member is sandwiched between the first surface of the display device and the second surface of the protection member. The first and second abutment surfaces abutting on the first and second surfaces are planar with each other, and the sheet member has elasticity. By being in close contact with the first surface or the second surface from the peripheral portion, air is trapped between the display or the protection member and the sheet member, and air bubbles remain, and a portion where the air bubbles remain However, there is a problem that light reflection occurs and visibility deteriorates. Patent Document 1 discloses that when air bubbles remain, the air bubbles can be removed by peeling off the end of the sheet member and making it adhere again, or by pressing the sheet member or the protection member by hand. However, after disposing the sheet member between the first and second surfaces, the sheet member cannot be peeled off or pressed on the sheet member. In addition, there is a problem that the number of working steps increases and the manufacturing efficiency is poor.
[0007]
The present invention has been made in view of this problem, and when arranging an elastic sheet member between a first surface and a second surface, the first surface or the second surface It is an object of the present invention to provide a method of arranging a sheet member that can suppress bubbles from remaining between a surface and the sheet member, and a display device including the sheet member.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a display device housed in a case body having an opening, and the display device disposed in the opening so as to face the display device. A protection member that allows display light from the display to pass therethrough; and a sheet member having elasticity disposed between a first surface of the display device and a second surface of the protection member. A display device, wherein at least one of the first surface and the second surface is formed in a curved shape or an inclined shape.
[0009]
Also, in the first aspect, as described in the second aspect, the one surface is formed so as to be convex toward the sheet member.
[0010]
Further, in claim 1 or claim 2, as described in claim 3, the first surface and the second surface of the sheet member are deformed along the one surface. And is disposed between the two.
[0011]
According to a fourth aspect of the present invention, there is provided a display unit housed in a case body having an opening, and the display unit is disposed in the opening so as to face the display unit and is capable of transmitting display light from the display unit. A display member comprising: a protective member to be provided; and an elastic sheet member disposed between a first surface of the display and a second surface of the protective member. At least one of the first abutting surface abutting on the first surface or the second abutting surface abutting on the second surface is formed in a curved surface or an inclined shape. It is characterized by.
[0012]
Further, in claim 4, as in claim 5, the one contact surface is convex toward the first surface or the second surface that contacts the one contact surface. It is characterized by being formed as follows.
[0013]
Further, in claim 4 or claim 5, as described in claim 6, the sheet member is deformed along the first surface or the second surface in the state where the first member is deformed along the first surface or the second surface. It is provided between the surface and the second surface.
[0014]
Further, as set forth in claim 7, a method for disposing a sheet member having elasticity between a first surface and a second surface, wherein the first surface or the first surface At least one surface of the second surface is formed in a curved surface or an inclined shape, and the sheet member is gradually brought into contact with the one surface from a higher portion to a lower portion.
[0015]
According to a seventh aspect, as set forth in the eighth aspect, the one surface is formed so as to be convex toward the sheet member.
[0016]
Further, as set forth in claim 9, a method for arranging a sheet member having an elastic sheet member between a first surface and a second surface, wherein: Forming at least one contact surface of the first contact surface contacting the second surface or the second contact surface contacting the second surface into a curved surface or an inclined surface; The method is characterized by gradually contacting the first surface or the second surface from a high place to a low place.
[0017]
In claim 9, as in claim 10, the one contact surface is convex toward the first surface or the second surface that contacts the one contact surface. It is characterized by being formed as follows.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment in which the present invention is applied to a vehicle display device for displaying a vehicle state will be described below with reference to the accompanying drawings.
[0019]
FIG. 1 shows a vehicle display device (display device) 1, which includes a display 2, a housing (case body) 3, a protection member 4, and a seat member 5. FIG. 2 is a cross-sectional view of a main part showing the display 2, the protection member 4, and the sheet member 5 before assembly.
[0020]
The display 2 displays a vehicle state such as a running speed (vehicle speed) of the vehicle, an engine speed, and the like. For example, one of the display 2 includes a plurality of translucent first and second electrode lines. The organic EL panel is provided with an organic EL element in a dot matrix shape in which lines are arranged orthogonally and an organic layer including at least a light emitting layer is interposed between the electrode lines. The display unit 2 is configured to input a drive signal output from the control unit via a drive circuit, thereby selecting each of the electrode lines and obtaining a predetermined display such as numerals, characters, and symbols. (Case body) 3 is housed. In addition, as shown in FIG. 2, the display 2 has a first surface 2 a that contacts the sheet member 5 on the upper surface side. On the back side of the display 2, a circuit board 2b electrically connected to the display 2 and including electronic components such as the drive circuit is provided. The display may be a VFD (fluorescent display tube) panel or a liquid crystal display panel.
[0021]
The housing 3 is composed of an upper case 3a and a lower case 3b made of a resin material such as ABS, and the upper case 3a and the lower case 3b are fixed by screw portions (not shown). Further, the housing 3 includes a mounting portion 3c in which the display 2 is disposed, and fixes the display 2 via an adhesive. In the upper case 3a, a first opening (opening) 3d is formed at a position facing the display area of the display 2, and a protection member 4 is provided around the first opening 3d. Step 3e is formed. Further, a second opening 3f is formed in the upper case 3a, and push button switches 6a, 6b, and 6c that constitute an operation means 6 for selecting or determining the display mode of the display 2 are provided. At a predetermined location on the outer periphery of the housing 3, a mounting portion 3g for mounting the vehicle display device 1 at a predetermined location in the vehicle is provided.
[0022]
The protection member 4 is made of, for example, a light-transmitting glass material or a resin material, and is disposed on the step portion 3 e of the housing 3 so as to face the first surface 2 a of the display 2. Is fixed to the step 3e. The protection member 4 protects the display 2 from an external impact or the like, and transmits the display light of the display 2. Further, as shown in FIG. 2, the protection member 4 includes a curved second surface 4 a that contacts the sheet member 5 on the lower surface side. The second surface 4a has a shape that is convex toward the sheet member 5, that is, a shape that is substantially highest at the center and gradually lowers toward the periphery.
[0023]
The sheet member 5 is made of, for example, silicon rubber manufactured by Asahi Rubber Co., Ltd., and is non-adhesive and elastic, and the first surface 2a of the display 2 and the second surface 4a of the protective member 4 are provided. And is sandwiched between the display 2 and the protection member 4. As shown in FIG. 2, the sheet member 5 includes a first contact surface 5 a that contacts the first surface 2 a of the display 2 on the lower surface, and a second surface of the protection member 4 on the upper surface. A second contact surface 5b is provided for contacting the second contact surface 4a.
[0024]
Next, a method of disposing the sheet member 5 will be described with reference to FIG.
[0025]
As a method of disposing the sheet member 5, first, the sheet member 5 is disposed on the display 2 disposed on the mounting portion 3c of the housing 3, and the first surface 2a of the display 2 and the sheet member 5 are disposed. The first contact surface 5a is brought into contact with the first contact surface 5a (FIG. 3A). Next, the protection member 4 is disposed on the stepped portion 3e of the housing 3 in a pressed state, and the second surface 4a of the protection member 4 is brought into contact with the second contact surface 5b of the sheet member 5 (FIG. 3 (b)). At this time, since the second surface 4a of the protection member 4 has a shape protruding toward the sheet member 5, the sheet member 5 first comes into contact with the substantially central portion of the protection member 4, and then the protection member 4 While gradually pushing out the air between the sheet member 5 and the sheet member 5 to come into contact with the peripheral portion. Further, the sheet member 5 is pressed by the protection member 4 and deforms in shape along the shape of the curved surface portion 5a as shown in FIG. 3C, and the protection member 4 is fixed to the step portion 2e. The member 5 is disposed between the first surface 2a of the display 2 and the second surface 4a of the protection member 4 in a deformed state. For this reason, when the sheet member 5 is disposed, bubbles are suppressed from remaining between the sheet member 5 and the protection member 4, and the adhesion between the sheet member 5 and the protection member 4 is not impaired.
[0026]
In the vehicle display device 1, the second surface 4 a of the protection member 4 that contacts the second contact surface 5 b of the seat member 5 is formed in a curved shape. Further, the second surface 4a is formed so as to be convex toward the sheet member 5. Further, the sheet member 5 is disposed between the first surface 2a of the display 2 and the second surface 4a of the protection member 4 in a state where the sheet member 5 is deformed along the second surface 4a. is there. With the configuration described above, the vehicle display device 1 provides the height difference on the second surface 4a of the protection member 4 so that the second abutment surface 5b of the sheet member 5 is firstly positioned most on the second surface 4a. The protection member 4 and the sheet member 5 are brought into contact with each other by gradually abutting from the substantially central portion, which is a high portion, and then gradually toward the peripheral portion, which is the lowest portion on the second surface 4a. Since the air in between is opened outward, it is possible to suppress the generation of bubbles. Further, since the remaining of bubbles is suppressed when the sheet member 5 is provided, it is not necessary to press the protection member 4 by hand after disposing the sheet member 5 to remove the bubbles. Can be improved. In addition, since the second contact surface 5b of the sheet member 5 is provided in a state of being deformed along the shape of the second surface 4a, the adhesion between the sheet member 5 and the protection member 4 is impaired. Never be.
[0027]
In the above-described embodiment, the configuration is such that the second surface 4a of the protection member 4 is formed in a curved surface, but may be formed in an inclined shape. Further, the highest point toward the sheet member 5 is not limited to the above-described substantially central portion, and another portion such as an end portion may have the highest position.
[0028]
Further, the present invention provides a configuration in which the first surface of the display unit that contacts the sheet member is formed into a curved surface or an inclined shape, or the first surface of the display unit that contacts the sheet member and the sheet member of the protection member. A configuration in which the contacting second surfaces are each formed in a curved surface or an inclined shape may be employed.
[0029]
Further, according to the present invention, at least one of the first contact surface that contacts the first surface of the display of the sheet member or the second contact surface that contacts the second surface of the protective member is curved or inclined. The first surface of the display and the second surface of the protection member may be formed in a planar shape.
[0030]
Further, the application of the present invention according to claims 7 to 10 is not limited to a display device, and an elastic sheet member is provided between the first surface and the second surface. Any configuration can be applied.
[0031]
【The invention's effect】
The present invention relates to a method of disposing a sheet member having a sheet member having elasticity between a first surface and a second surface, and a display device provided with the sheet member. It is possible to suppress bubbles from remaining between the second surface and the sheet member.
[Brief description of the drawings]
FIG. 1 is a diagram showing a vehicle display device according to an embodiment of the present invention.
FIG. 2 is an essential part cross-sectional view showing the indicator, the protective member, and the sheet member in the above.
FIG. 3 is a diagram showing a method of disposing a sheet member in the above.
[Explanation of symbols]
1 Vehicle display device (display device)
2 Display 2a First surface 3 Housing (case body)
3d first opening (opening)
4 protection member 4a second surface 5 sheet member 5a first contact surface 5b second contact surface

Claims (10)

An indicator housed in a case body having an opening, a protection member disposed in the opening to face the indicator and capable of transmitting display light from the indicator, and a first of the indicators. And a sheet member having elasticity disposed between a surface of the protective member and a second surface of the protective member,
A display device, wherein at least one of the first surface and the second surface is formed in a curved shape or an inclined shape. The display device according to claim 1, wherein the one surface is formed so as to protrude toward the sheet member. The said sheet member is arrange | positioned between the said 1st surface and the said 2nd surface in the state deformed along the said one surface, The Claim 1 or Claim 2 characterized by the above-mentioned. 3. The display device according to 2. An indicator housed in a case body having an opening, a protection member disposed in the opening to face the indicator and capable of transmitting display light from the indicator, and a first of the indicators. And a sheet member having elasticity disposed between a surface of the protective member and a second surface of the protective member,
At least one contact surface of the first contact surface contacting the first surface of the sheet member or the second contact surface contacting the second surface is formed in a curved surface or an inclined shape. A display device, comprising: The said one contact surface is formed so that it may become convex toward the said 1st surface or the said 2nd surface which contacts the said one contact surface, The Claim 5 characterized by the above-mentioned. Display device. The sheet member is provided between the first surface and the second surface in a state where the sheet member is deformed along the first surface or the second surface. The display device according to claim 4 or 5, wherein A method of arranging a sheet member, wherein a sheet member having elasticity is arranged between a first surface and a second surface,
Forming at least one surface of the first surface or the second surface in a curved surface or an inclined shape, and gradually abutting the sheet member from a higher portion to a lower portion of the one surface. A method of arranging a seat member as a feature. The method according to claim 7, wherein the one surface is formed so as to protrude toward the sheet member. A method of arranging a sheet member, wherein a sheet member having elasticity is arranged between a first surface and a second surface,
Forming at least one contact surface of the first contact surface contacting the first surface of the sheet member or the second contact surface contacting the second surface in a curved or inclined shape, A method of arranging a sheet member, characterized in that the one contact surface is gradually brought into contact with the first surface or the second surface from a higher position to a lower position. The said one abutment surface is formed so that it may become convex toward the said 1st surface or the said 2nd surface which abuts on the said one abutment surface, The Claim 9 characterized by the above-mentioned. Arrangement method of sheet member.

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