JP6241109B2 - Display device - Google Patents

Description

  The present invention relates to a display device mounted on various moving bodies such as automobiles, motorcycles, agricultural and construction machines, watercrafts, and ships.

  Conventionally, as this type of display device, for example, the one described in Patent Document 1 below is known. The display device described in Patent Document 1 includes a resin case body that houses a display (display panel), and a first see-through member made of a translucent resin material disposed on the opening side of the case body. A second see-through member made of a translucent resin material that is spaced apart from the first see-through member on the display side; and a first see-through member at the peripheral portion of the first see-through member; A seal member (buffer member) provided so as to be interposed between the second fluoroscopic member and the seal member is installed so as to fill a space between the first fluoroscopic member and the second fluoroscopic member. By doing so, the space is configured as a sealed space while suppressing fogging of the inner surface of the first see-through member.

JP 2010-32404 A

  By the way, in the display device described in Patent Document 1, internal parts (for example, a circuit board for driving the display) that define the visible range of the display and are housed in the case body are first and second. In some cases, a black print layer is provided on the back surface portion of the second fluoroscopic member corresponding to the region excluding the visible range (that is, outside the visible range) so as to be invisible from the viewer side through the fluoroscopic member.

  When the black printed layer is printed on the back surface of the second fluoroscopic member using screen printing or the like in this way, the visible display of the display device is caused by the printing misalignment when the black printed layer is printed. It is conceivable that the boundary between the range and the outside of the visible range of the display device is displaced.

  Therefore, there is a method of positioning the second see-through member and the case body in order to suppress this positional shift to the minimum. For example, the positioning which consists of a through-hole shape which penetrates the front and back of a 2nd fluoroscopic member in the appropriate location in the 2nd fluoroscopic member (For example, the predetermined location of the 2nd fluoroscopic member located inside the position where a sealing member is installed). A hole is provided, and a positioning portion made of a convex portion is provided at a case body portion corresponding to the positioning hole, and the positioning portion of the case body is positioned in the positioning hole of the second fluoroscopic member, thereby The fluoroscopic member and the case body can be positioned.

However, in the case where the case body and the second fluoroscopic member are positioned using the positioning portion of the case body and the positioning hole portion of the second fluoroscopic member as described above, the positioning portion is caused by a dimensional tolerance. The clearance between the first fluoroscopic member and the positioning hole cannot be completely eliminated (zero), so that part of the internal air existing in the space between the first fluoroscopic member and the second fluoroscopic member is There is a problem in that the space leaks to the outside through the clearance and the airtightness of the space is lowered, and there remains room for further improvement in this respect.
Therefore, the present invention is a case where the case body and the second fluoroscopic member are positioned using the positioning portion of the case body and the positioning hole of the second fluoroscopic member in order to cope with the above-described problem. However, an object of the present invention is to provide a display device capable of ensuring the airtightness of the space formed by the first transparent member and the second transparent member.

  The present invention is a case body that accommodates a display panel, a first see-through member that is disposed on the opening side of the case body, and a first see-through member that is spaced apart from the display panel. In the display device including the second see-through member, the second see-through member includes an invisible portion formed outside the visible range of the display panel, and a plurality of positioning portions provided on the case body, respectively. And a buffer member disposed outside the visible range so as to seal a space between the first fluoroscopic member and the second fluoroscopic member. A main body provided outside the positioning hole and a surrounding portion surrounding the positioning hole when the display device is viewed from the front.

  According to the present invention, the buffer member is sandwiched between the flange portion and the second perspective member on the back side of the flange portion provided on the peripheral portion of the first perspective member. Features.

  According to the present invention, even if the initial object can be achieved and the case body and the second fluoroscopic member are positioned by using the positioning portion of the case body and the positioning hole of the second fluoroscopic member. In addition, it is possible to provide a display device capable of ensuring the airtightness of the space formed by the first transparent member and the second transparent member.

1 is a cross-sectional view of a display device according to an embodiment of the present invention. The expanded sectional view which shows the A section in FIG. The principal part front view of the display apparatus of the state which removed the 1st see-through member by the embodiment.

  Hereinafter, an embodiment in which the present invention is applied to a display device mounted on a moving body such as a water bike will be described with reference to FIGS.

  In FIG. 1, the display device according to the present embodiment includes a display panel 10, a support body 20 that supports the display panel 10, a case body 30 that houses the display panel 10 and the support body 20, and the case body 30. A first see-through member 40 disposed on the opening side (front opening side), a second see-through member 50 disposed on the display panel 10 side of the first see-through member 40, and the first see-through member 50. And a shock-absorbing member 60 having a substantially U-shaped cross-section covering the peripheral portion of the two see-through members 50.

  The display panel 10 is composed of, for example, a well-known TN liquid crystal display panel in which TN liquid crystal molecules are sealed between a pair of glass substrates. The display panel 10 has predetermined information in a visible range R1 provided so as to correspond to the display area of the display panel 10. Is displayed. As the predetermined information, for example, speed information, rotation speed information, and fuel consumption information of the moving body can be adopted.

  The support 20 is made of, for example, a synthetic resin, is formed in a substantially concave shape in cross section, and is a support member for mounting the display panel 10.

  The case body 30 is made of, for example, black light-shielding synthetic resin, and accommodates the display panel 10, the support body 20, and the second see-through member 50. The case body 30 includes a bottom wall portion 31 and a side wall portion 32, and has a substantially reverse recessed shape in cross section in which an upper end side (the front opening side) of the side wall portion 32 that is opposite to the bottom wall portion 31 is opened. Is formed.

  The bottom wall portion 31 is formed in a substantially flat plate shape and is located behind the support 20 and the second see-through member 50. The side wall 32 extending in a standing wall shape from the outer peripheral edge of the bottom wall 31 toward the first see-through member 40 is bent at an upper end side in a substantially L shape, and is positioned outside the side wall 32. And a connecting portion 34 that connects the standing wall 33 and the side wall 32 (see FIG. 2).

  The standing wall portion 33 includes a substantially frame-shaped thin portion 35 positioned on the distal end side so as to cover a side of a collar portion, which will be described later, provided in the first see-through member 40, and a second see-through member 50 (the display panel 10). ) In the plate surface direction is formed to be thicker than the thin portion 35, and the thick portion 36 covers the side of the buffer member 60. ing.

  In addition, a positioning portion 37 formed of a columnar convex portion that can be positioned with a positioning hole portion, which will be described later, provided in the second fluoroscopic member 50 is provided on the inner peripheral portion of the side wall portion 32 on the side opposite to the connecting portion 34 side. Is provided. The positioning portion 37 extends toward a later-described collar portion provided in the first see-through member 40 so as to be substantially parallel to the standing wall portion 33, and does not jump out to the front side of the second see-through member 50. It is positioned and fixed in the positioning hole. In this case, it is assumed that a plurality (at least two or more) of the positioning portions 37 are formed along the inner peripheral portion of the side wall portion 32.

  The first see-through member 40 is formed of a translucent synthetic resin (for example, a colorless and transparent acrylic resin), and has a configuration in which the see-through part 41, the wall part 42, and the collar part 43 are integrally formed.

  The see-through part 41 is shaped so that the viewer side who views the display device has a curved convex surface, and the wall part 42 is hung down from the outer peripheral edge of the see-through part 41 (on the second see-through member 50 side). It has a hanging wall shape.

  The flange portion 43 has a flange shape extending outward from the lower end side of the wall portion 42 along the plate surface direction of the second see-through member 50, and the outer peripheral edge thereof is mounted on the thick portion 36 of the standing wall portion 33. Placed. By the way, in the case of this example, the thick part 36 and the collar part 43 part provided in the peripheral part of the 1st see-through | perspective member 40 corresponding to this are mutually fixed using ultrasonic welding etc. . In addition, on the back side of the flange portion 43, the buffer member 60 includes a portion of a main body portion to be described later (that is, the body portion portion in contact with the flange portion 43) and a surrounding portion to be described later. It is sandwiched between the second see-through member 50.

  It should be noted that the buffer member 60 (that is, both the main body portion and the surrounding portion) is orthogonal to the plate surface direction in the vicinity of the boundary between the wall portion 42 and the flange portion 43 and in the flange portion 43 portion excluding the vicinity thereof. A compression rib (protrusion) 44 for compressing in the direction is provided.

  The second see-through member 50 is formed by printing on a flat plate-like light-transmitting substrate 51 made of a light-transmitting synthetic resin (for example, a colorless and transparent acrylic resin) as a base material and the back surface of the light-transmitting substrate 51. And an invisible portion 52 made of a black print layer.

  Further, in this case, a circular through-hole shape capable of positioning (fitting) with the plurality of positioning portions 37 is provided at 51 places of the translucent substrate corresponding to the plurality of positioning portions 37 provided in the case body 30. A plurality of positioning hole portions 53 are formed so as to penetrate the front and back of the translucent substrate 51.

  The invisible portion 52 is printed and formed on the back surface portion of the translucent substrate 51 corresponding to the outside visible range R2 of the display panel 10 which is an area other than the display area (visible range R1). Then, each positioning portion 37 positioned outside the visible range R2 is similarly positioned in each positioning hole 53 positioned outside the visible range R2 (that is, the second see-through member 50 is the case body). 30), it is possible to suppress the positional deviation of the boundary between the visible range R1 and the outside visible range R2 due to the printing deviation of the invisible portion 52 (the black print layer) as much as possible.

  The viewer can see through the predetermined information displayed in the display area of the display panel 10 through the transparent substrate 51 portion corresponding to the visible range R1 and the transparent portion 41 portion corresponding to the visible range R1. Yes. Further, the invisible portion 52 may be printed on the surface portion of the translucent substrate 51 corresponding to the outside visible range R <b> 2 of the display panel 10 instead of the back surface of the translucent substrate 51.

  As shown in FIG. 3, the buffer member 60 is made of a black waterproof packing (seal member) having elasticity wound around the entire periphery of the second see-through member 50, and includes the first see-through member 40 and the second see-through member 40. A body portion 61 provided outside the positioning hole 53 (positioning portion 37) so as to seal the space S between the see-through member 50 and a plurality of positioning hole portions when the display device is viewed from the viewer side. 53 (a plurality of positioning portions 37) are provided so as to surround each of the plurality of positioning portions 37. In this case, both the main body portion 61 and the plurality of surrounding portions 62 of the second see-through member 50 are provided. It is arranged (arranged) in the peripheral portion and in the vicinity thereof (that is, outside the visible range R2).

  The main body 61 constitutes a main part of the buffer member 60, is formed in a substantially U-shaped cross section, and is between the flange 43 and the translucent substrate 51, the side surface of the second see-through member 50, and the thickness. It is wound around the entire periphery of the second fluoroscopic member 50 so as to fill all the space portions existing between the portion 36 and between the connecting portion 34 and the invisible portion 52.

  Further, the surrounding portion 62 is formed integrally with the main body portion 61 so as to bypass each positioning hole portion 53. In this case, when the case body 30 and the first see-through member 40 are fixed by the ultrasonic welding, the buffer member 60 (the body portion 61 and the surrounding portion 62) is compressed by the flange portion 43. The rib 44 is configured so that the main body 61 portion in contact with the compression rib 44 and the surrounding portion 62 are compressed.

  Accordingly, the body portion 61 is wound around the entire circumference of the second fluoroscopic member 50 while bypassing the positioning hole portion 53 by the surrounding portion 62, so that the positioning portion 37 and the positioning hole portion 53 can be adjusted according to the dimensional tolerance. Even if there is a clearance between them, the surrounding portion 62 does not guide a part of the internal air existing in the space S to between the positioning portion 37 and the positioning hole 53 (that is, the clearance). Since it has a function as an air blocking part, a part of the internal air passes through the clearance as in the conventional case (for example, a space between the case body 30 and the second see-through member 50). It is possible to ensure the airtightness of the space S formed by the first see-through member 40 and the second see-through member 50.

  As described above, in the present embodiment, the case body 30 that houses the display panel 10, the first see-through member 40 disposed on the opening side of the case body 30, and the display panel of the first see-through member 40. In the display device including the second see-through member 50 spaced apart on the 10 side, the second see-through member 50 includes an invisible portion 52 formed outside the visible range R2 of the display panel 10, and a case. The buffer member 60 having a plurality of positioning portions 37 provided in the body 30 and a plurality of positioning hole portions 53 that can be positioned respectively, and disposed outside the visible range R2, includes the first fluoroscopic member 40 and A main body 61 provided outside the positioning hole 53 so as to seal the space S between the second see-through member 50 and an enclosure 62 surrounding the positioning hole 53 when the display device is viewed from the front. It is what. Further, the buffer member 60 is sandwiched between the flange portion 43 and the second see-through member 50 on the back side of the flange portion 43 provided at the peripheral portion of the first see-through member 40.

  Therefore, even if there is a clearance between the positioning portion 37 and the positioning hole 53 due to the dimensional tolerance, the surrounding portion 62 positions a part of the internal air existing in the space S with the positioning portion 37. Since it has a function as an air blocking part that does not lead to the hole 53, a part of the internal air may leak to the outside of the space S through the clearance as in the prior art. Thus, it is possible to provide a display device that can ensure the airtightness of the space S formed by the first transparent member 40 and the second transparent member 50.

  Further, in the present embodiment, when the case body 30 and the first see-through member 40 are fixed by the ultrasonic welding, the buffer member 60 (the main body portion 61 and the surrounding portion 62) is provided in the flange portion 43. The first and second fluoroscopic members 40 and 50 are formed by the compression rib 44 so that the main body 61 portion in contact with the compression rib 44 and the surrounding portion 62 are compressed. The airtightness of the space S to be made can be further improved.

DESCRIPTION OF SYMBOLS 10 Display panel 20 Support body 30 Case body 32 Side wall part 33 Standing wall part 34 Connection part 35 Thin part 36 Thick part 37 Positioning part 40 1st see-through member 41 1st see-through part 43 Hook part 44 Compression rib (protrusion part)
DESCRIPTION OF SYMBOLS 50 2nd see-through member 51 2nd see-through part 52 Invisible part 53 Positioning hole part 60 Buffer member 61 Main-body part 62 Enclosing part R1 Display area (visible range)
R2 Out of visible range S space

Claims (2)

A case body for housing the display panel;
A first see-through member disposed on the opening side of the case body;
A display device comprising: a second see-through member spaced apart from the first see-through member on the display panel side;
The second see-through member has an invisible portion formed outside the visible range of the display panel, a plurality of positioning portions provided in the case body, and a plurality of positioning holes that can be respectively positioned. ,
The buffer member disposed outside the visible range includes a main body provided outside the positioning hole so as to seal a space between the first and second fluoroscopic members, And a surrounding portion surrounding the positioning hole so as to bypass the positioning hole when the display device is viewed from the front. The said buffer member is clamped between the said collar part and the said 2nd see-through member in the back side of the collar part provided in the peripheral part of the said 1st see-through member. The display device according to 1.

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