JP7165883B2 - Display device - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to display devices, and more particularly to display devices including display panels.

2. Description of the Related Art In a display device such as a television device, a curved surface is adopted in a frame area. A mounting frame is provided on the back side of the curved surface portion in order to suppress widening of the frame area due to the curved surface being formed on the front housing (see, for example, Patent Document 1).

Japanese Unexamined Patent Application Publication No. 2013-3306

In a display device mounted on a vehicle, it is not necessary to adopt a curved surface in the frame area, but it is desired to narrow the frame even in such a display device. Moreover, since the display device mounted on the vehicle is subject to vibrations caused by the vehicle, it is necessary to ensure strength.

The present disclosure has been made in view of such circumstances, and an object of the present disclosure is to provide a technique for ensuring strength while narrowing the frame.

In order to solve the above problems, a display device according to one aspect of the present disclosure includes: a display panel having a display surface and a rear surface facing opposite to each other; and a side surface disposed between the display surface and the rear surface. a rear plate that covers the rear surface, a side wall that is provided on the periphery of the rear plate and surrounds the side surface of the display panel with the inner surface, and a side surface of the display panel that protrudes outward from the outer surface of the side wall. and a frame attached to the chassis by gripping the rails from the outside while surrounding the outer surfaces of the side walls. Prepare. In a first section in a direction surrounding the side of the display panel, the rail includes an abdomen erected on the outer surface and a head connected to the abdomen and wider than the abdomen, and the rail is provided with the display panel. In a second section different from the first section in a direction surrounding the side of the rail, the frame does not have a belly and has a head spaced from the lateral surface, and the frame is in the second section of the rail between the head and the lateral surface. be caught up in the space of

According to the present disclosure, it is possible to ensure strength while narrowing the frame.

It is a figure which shows the structure inside the vehicle interior of the vehicle which concerns on an Example. 2(a)-(c) are diagrams showing the structure of the electronic device of FIG. FIGS. 3(a)-(b) are partial cross-sectional views enlarging a part of FIGS. 2(b)-(c). 4(a)-(c) are diagrams showing the structure of the chassis of FIGS. 2(b)-(c). 5(a)-(c) are sectional views showing modifications of the rail of FIG. 3(a).

Before specifically describing the embodiments of the present disclosure, an overview of the embodiments will be described. This embodiment relates to a display device mounted on a vehicle. In a display device, for example, a display panel is housed inside a chassis that is open on the front side, and a frame-shaped frame (hereinafter referred to as a "front frame") is attached to the front opening portion of the chassis. Here, the front frame is a design part and a part that the passenger touches, so it is made of resin. If the front frame and the chassis are separate structures, the thickness of the front frame needs to be reduced in order to narrow the frame. However, simply reducing the thickness of the front frame makes it easier for the front frame to come off the chassis due to external forces such as vibrations. In order to ensure strength/rigidity, the front frame must have a certain thickness.

In order to ensure strength while narrowing the frame, the display device according to the present embodiment has a chassis insert integrated structure in which the front frame is held in the chassis. With the chassis insert integrated structure, even if the front frame is thin, the front frame is unlikely to come off the chassis against external force, ensuring strength. As a result, it is possible to achieve both a narrow frame and strength. In the following description, "parallel" and "perpendicular" include not only complete parallel and perpendicularity, but also cases deviated from parallel and perpendicularity within a margin of error.

FIG. 1 shows the interior structure of a vehicle 10. As shown in FIG. A windshield 52 is arranged in front of the dashboard 50 arranged in front of the passenger compartment. Although the steering wheel 54 is arranged on the right side portion of the dashboard 50 , the steering wheel 54 may be arranged on the left side of the dashboard 50 . A vertically extending center console 56 is arranged in the central portion of the dashboard 50 , and the electronic device 100 is fitted in the center console 56 . Further, for example, an installation structure in which only the lower portion of electronic device 100 is fitted into the center console and the entire design of electronic device 100 is exposed to the outside is also included. An example of the electronic device 100 is a navigation device, and the navigation device includes a display device capable of displaying map images and the like.

2(a)-(c) show the structure of the electronic device 100. FIG. As shown in FIGS. 2(a)-(c), a Cartesian coordinate system is defined that includes x-, y-, and z-axes. The x-axis and y-axis are orthogonal to each other. The z-axis is perpendicular to the x-axis and the y-axis and extends in the vertical direction of electronic device 100 . In addition, the positive direction of each of the x-axis, y-axis, and z-axis is defined in the direction of the arrow in FIGS. . Here, the positive direction of the x-axis is “forward” and “front”, the negative direction of the x-axis is “backward” and “rear”, the positive direction of the y-axis is “right” and “right”, and the positive direction of the y-axis is “right”. The negative direction is also called "leftward" and "leftward", the positive direction of the z-axis is called "upward" and "upper", and the negative direction of the z-axis is called "downward" and "downward". Therefore, it can be said that the x-axis extends in the front-back direction, the y-axis extends in the left-right direction, and the z-axis extends in the up-down direction.

FIG. 2A is a perspective view showing the appearance of the electronic device 100. FIG. A plurality of second sections 124 are discretely arranged on the outer peripheral portion when the electronic device 100 is projected onto the yz plane. Sections other than the plurality of second sections 124 in the outer peripheral portion are defined as first sections. FIG. 2(b) is a cross-sectional view of the electronic device 100 along line A-A' in FIG. 2(a), which corresponds to a cross-sectional view in the first section. 2C is a cross-sectional view of the electronic device 100 taken along line B-B' in FIG.

A plate-shaped glass lens 110 extending in the yz plane is arranged on the front surface of the electronic device 100 . The glass lens 110 is a light transmitting member and is made of glass. Resin may be used as the glass lens 110 instead of glass. A peripheral portion of the glass lens 110 is surrounded by a front frame 120 having a rectangular frame shape. Front frame 120 is arranged on part of the front surface and part of the side surface of electronic device 100 .

A frame dimension 102 is defined to include the periphery of the glass lens 110 and the front frame 120 . Here, for clarity of the drawing, only the frame dimensions 102 of the upper portion of the electronic device 100 are shown, but the frame dimensions 102 are also defined for each of the lower, left, and right portions of the electronic device 100. be. The frame dimensions 102 of the upper portion, lower portion, left portion, and right portion of the electronic device 100 may be different. A detailed definition of the frame dimension 102 will be described later, but in this embodiment, reducing the frame dimension 102 corresponds to narrowing the frame.

A rear frame 130 is arranged on the rear side surface of the front frame 120 in the electronic device 100 and the rear side surface of the electronic device 100 . The lower portion of the rear frame 130 protrudes rearward, but is not limited to this. Thus, the side and rear surfaces of electronic device 100 are covered by front frame 120 and rear frame 130 . However, front frame 120 and rear frame 130 are not directly connected. Further, the front frame 120 and the rear frame 130 are made of resin.

Inside electronic device 100 surrounded by glass lens 110 , front frame 120 , and rear frame 130 , display panel 200 is arranged facing glass lens 110 . An example of the display panel 200 is a liquid crystal panel. The display panel 200 emits display light toward the glass lens 110 . The side and rear surfaces of the display panel 200 are covered with the chassis 300 . The front surface of chassis 300 is connected to glass lens 110 , and the side surfaces of chassis 300 are connected to front frame 120 and rear frame 130 . The chassis 300 is manufactured by die casting, and the material of the chassis 300 is magnesium alloy, aluminum alloy, or zinc alloy. Since such a material is a metal that can be formed into a thin wall, the thickness of the chassis 300 can be reduced and the frame can be narrowed. Chassis 300 may also be manufactured from sheet metal.

In the following, FIGS. 3(a)-(b) are used to describe the structure of FIGS. 2(b)-(c) in more detail. FIGS. 3(a)-(b) are partial cross-sectional views enlarging a part of FIGS. 2(b)-(c). FIG. 3(a) is an enlarged view of region C in FIG. 2(b). This is the upper portion of electronic device 100, but the lower, left, and right portions may have similar structures. The display panel 200 includes an optical adhesive sheet 210 , a liquid crystal panel 220 and a backlight unit 230 , and the chassis 300 includes a rear plate 310 , side walls 320 , insertion holes 330 and rails 350 .

The liquid crystal panel 220 and the backlight unit 230 of the display panel 200 have a plate shape extending in the yz plane, and the liquid crystal panel 220 is arranged in front of the backlight unit 230 . Also, the liquid crystal panel 220 is adhered to the glass lens 110 via the optical adhesive sheet 210 . When the backlight unit 230 illuminates the liquid crystal panel 220, an image displayed on the liquid crystal panel 220 is emitted toward the glass lens 110 as display light. Therefore, the front surface of the liquid crystal panel 220 is called the display surface 240 and the rear surface of the backlight unit 230 is called the rear surface 250 . Viewing surface 240 and rear surface 250 have a rectangular shape in the yz plane and face opposite each other. Also, side surfaces 260 are arranged in the xy plane and the zx plane between the display surface 240 and the rear surface 250 . As mentioned above, the display panel 200 includes four sides 260 because the display surface 240 and the rear surface 250 have a rectangular shape.

A rear plate 310 of the chassis 300 has a plate-like shape extending in the yz plane and a rectangular shape in the yz plane. A central portion of the rear plate 310 covers the rear surface 250 . A portion of the rear plate 310 that does not cover the rear surface 250 is a peripheral edge portion 312 , and the peripheral edge portion 312 is provided with a side wall 320 extending forward. Side wall 320 surrounds side 260 of display panel 200 . Such a combination of rear plate 310 and side walls 320 has a box-like shape with an open front side. The front side surface of the side wall 320 and the rear side surface of the glass lens 110 are adhered with a double-sided tape 140 .

Side wall 320 has an outer surface 322 and an inner surface 324 . The inner side 324 faces the side 260 of the display panel 200 and the outer side 322 faces away from the inner side 324 . Further, the outer surface 322 is provided with a rail 350 protruding further outward. Rail 350 extends in a frame shape along outer side 322 in a direction surrounding side 260 of display panel 200 . Here, in the first section in the direction surrounding the side surface 260 of the display panel 200 , the rail 350 includes an abdomen 352 erected on the outer side surface 322 and a head portion connected to the abdomen 352 and wider than the abdomen 352 . and a portion 354 . Therefore, the rail 350 is shaped to be wider away from the outer side surface 322 .

The front frame 120 is attached to the outside of the chassis 300 by enclosing the outer surfaces 322 of the side walls 320 and gripping the rails 350 from the outside with the insertion grooves 122 . Such a structure of the front frame 120 and the chassis 300 is a chassis insert integrated structure. The chassis insert integrated structure is manufactured by insert molding the front frame 120 and chassis 300 . The frame dimension 102 is the length in the height direction of the portion of the glass lens 110 that is not irradiated with the display light and the front frame 120 .

Reducing the frame size 102 leads to a narrower frame, which corresponds to reducing the thickness of the front frame 120 . In general, when the thickness of the front frame 120 is reduced, the front frame 120 tends to come off the chassis 300 due to an external force, resulting in a decrease in strength. However, in this embodiment, since the chassis insert integrated structure is adopted, even if the thickness of the front frame 120 is thin, the front frame 120 is unlikely to come off from the chassis 300 against external force. strength is ensured. As a result, it is possible to achieve both securing of strength and narrowing of the frame. Here, the front frame 120 covers the outer surface 322 of the chassis 300 but does not cover the rear plate 310 .

4(a)-(c) show the structure of the chassis 300. FIG. FIG. 4A is a perspective view showing the structure of the chassis 300. FIG. A frame-shaped side wall 320 extends forward from a peripheral edge 312 (not shown) of the rear plate 310 . A frame-shaped rail 350 is provided on the outer side of the side wall 320 . In FIG. 4(a), the A-A' line is shown at the same position as the A-A' line in FIG. 2(a). FIG. 4B is a top view of the chassis 300, in which a plurality of insertion holes 330 are provided. FIG. 4(c) will be described later, returning to FIG. 3(a). Claw portions 132 provided on the inner surface of the rear frame 130 covering the rear plate 310 of the chassis 300 are fitted into the insertion holes 330 . Such a fit attaches the rear frame 130 to the chassis 300 but not to the front frame 120 . In general, when parts assembled together vibrate and repeat relatively small movements, squeaking noise is likely to occur between resins, but does not occur between resin and metal. Therefore, even if the front side frame 120 or the rear side frame 130 is repeatedly moved by a small amount with respect to the chassis 300 due to vibration, no creaking sound is generated.

FIG.3(b) is an enlarged view of the area|region D of FIG.2(c). The rail 350 does not have a abdomen 352 and has a head portion 354 spaced apart from the outer side surface 322 in a second section 124 different from the first section 124 in a direction surrounding the side surface 260 of the display panel 200 . The shape of the head 354 is similar to that of the first section. Also, since the abdomen 352 is not provided, a through hole 356 that is a space between the outer surface 322 and the head 354 is formed. Therefore, the front frame 120 is caught in the through hole 356 in the second section 124 of the rail 350 . That is, the rail 350 is partially provided with a through hole 356 so that the entire circumference of the front frame 120 is wound around the chassis 300 . With such a structure, unlike the case of the first section, which has only a grasping shape, the front frame 120 does not come off from the chassis 300 unless the front frame 120 is damaged by deformation due to an external force. FIG.4(c) is the figure which expanded the area|region E in Fig.4 (a). An abdomen 352 and a head 354 are arranged in the first section, and a head 354 and a through-hole 356 are arranged in the second section 124 .

The shape of the rail 350 is not limited to that shown in FIG. 3(a). 5(a)-(c) are sectional views showing modifications of the rail 350. FIG. These are shown similarly to FIG. 3(a). In FIG. 5A, the head 354 protrudes forward from the abdomen 352, but does not protrude rearward. In the second section 124, the head 354 is arranged and the abdomen 352 is not arranged. Since the head 354 protrudes only forward, the head 354 becomes smaller. In FIG. 5B, the head 354 protrudes forward and rearward from the abdomen 352, and the size of the head protruding forward is larger than the size protruding rearward. In the second section 124, the head 354 is arranged and the abdomen 352 is not arranged. In the head 354 , the size that protrudes forward is larger than the size that protrudes rearward, so the shape of the head 354 matches the shape of the front frame 120 . The head 354 in FIG. 5( c ) has a depression in the upper portion of the abdomen 352 . In the second section 124, the head 354 is arranged and the abdomen 352 is not arranged. In the head 354, a recess is placed in the upper portion of the abdomen 352 so that the material of the rail 350 is reduced.

According to this embodiment, the front frame 120 is attached to the chassis 300 by gripping the rails 350 from the outside while enclosing the outer surfaces 322 of the side walls 320. Therefore, even if an external force is applied, the front frame 120 does not move to the chassis. It can be made difficult to deviate from 300. Further, since the front frame 120 is less likely to come off from the chassis 300 even if an external force is applied, the strength of the electronic device 100 can be ensured. Moreover, since the strength of the electronic device 100 is ensured, the frame of the electronic device 100 can be narrowed. Moreover, since the strength of the electronic device 100 is ensured while the frame of the electronic device 100 is narrowed, the degree of freedom in design can be improved.

In addition, since the frame is caught in the space between the head portion 354 and the outer side surface 322, the front frame 120 is more difficult to come off from the chassis 300 even when an external force is applied. Moreover, since the front frame 120 is less likely to come off from the chassis 300 even when an external force is applied, the strength can be further improved. Moreover, since the chassis 300 is made of a magnesium alloy, the strength can be ensured even if the thickness of the chassis 300 is thin. Further, since the rear frame 130 is attached to the chassis 300 and not attached to the front frame 120, even if the front frame 120 or the rear frame 130 is repeatedly moved by minute amounts with respect to the chassis 300 due to vibration, creaking noise is generated. do not do.

A summary of one aspect of the present disclosure is as follows. A display device according to an aspect of the present disclosure includes a display panel 200 having display surfaces 240 and a rear surface 250 that face opposite each other and a side surface 260 disposed between the display surface 240 and the rear surface 250; a rear plate 310 that covers the rear surface 250; a side wall 320 that is provided on the peripheral edge portion 312 of the rear plate 310 and surrounds the side surface 260 of the display panel 200 with an inner surface 324; The chassis 300 has a rail 350 that protrudes toward and extends in a direction surrounding the side surface 260 of the display panel 200 and widens at a position away from the outer surface 322, and the rail surrounding the outer surface 322 of the side wall 320. a frame attached to the chassis 300 by gripping 350 from the outside.

According to this aspect, the frame is attached to the chassis 300 by gripping the rail 350 from the outside while enclosing the outer surface 322 of the side wall 320, so that the frame can be narrowed and the strength can be ensured.

The rail 350 has an abdomen 352 erected on the outer side surface 322 and a head portion 354 connected to the abdomen 352 and wider than the abdomen 352 in a first section in a direction surrounding the side surface 260 of the display panel 200 . may be provided. The rail 350 may not have a abdomen 352 and may have a head 354 spaced apart from the outer side 322 in a second section 124 different from the first section 124 in a direction surrounding the side 260 of the display panel 200 . The frame rolls into the space between the head 354 and the outer surface 322 in the second section 124 of the rail 350 . In this case, since the frame is caught in the space between the head 354 and the outer side surface 322, the strength can be further improved.

Chassis 300 may be made of a magnesium alloy. In this case, since the chassis 300 is made of a magnesium alloy, the strength can be ensured even if the thickness of the chassis 300 is thin.

The frame is a front frame 120 , the front frame 120 does not cover the rear plate 310 of the chassis 300 , and the display device may further include a rear frame 130 covering the rear plate 310 of the chassis 300 . Rear frame 130 is attached to chassis 300 and not attached to front frame 120 . In this case, since the rear frame 130 is attached to the chassis 300 and not attached to the front frame 120, even if the front frame 120 or the rear frame 130 is repeatedly moved by a small amount with respect to the chassis 300 due to vibration, there is no creaking sound. does not occur.

The present disclosure has been described above based on the embodiments. It should be understood by those skilled in the art that this embodiment is an example, and that various modifications are possible in the combination of each component or each treatment process, and such modifications are within the scope of the present disclosure. .

10 vehicle, 50 dashboard, 52 windshield, 54 steering wheel, 56 center console, 100 electronic device, 110 glass lens, 120 front frame, 122 insertion groove, 124 second section, 130 rear frame, 132 claw portion, 140 Double-sided tape 200 Display panel 210 Optical adhesive sheet 220 Liquid crystal panel 230 Backlight unit 240 Display surface 250 Rear surface 260 Side surface 300 Chassis 310 Rear plate 312 Peripheral edge 320 Side wall 322 Outer surface , 324 inner surface, 330 insertion hole, 350 rail, 352 abdomen, 354 head.

Claims (3)

a display panel having a display surface and a rear surface facing away from each other and a side surface disposed between the display surface and the rear surface;
a rear plate that covers the rear surface of the display panel; a side wall that is provided on the periphery of the rear plate and surrounds the side surface of the display panel with an inner surface; a chassis having a rail that protrudes outward from the display panel, extends in a direction surrounding the side surface of the display panel, and widens at a position away from the outer side surface;
a frame attached to the chassis by gripping the rail from the outside while surrounding the outer surface of the side wall;
with
The rail includes an abdomen erected on the outer surface of the display panel in a first section in a direction surrounding the side surface of the display panel, and a head connected to the abdomen and wider than the abdomen. ,
the rail does not include the abdomen in a second section different from the first section in a direction surrounding the side surface of the display panel, and includes the head spaced apart from the outer surface;
A display device , wherein the frame is wrapped in a space between the head and the outer surface in the second section of the rail . 2. The display device of claim 1, wherein the chassis is made of magnesium alloy. the frame is a front frame,
the front frame does not cover the rear plate of the chassis,
This display device
further comprising a rear frame covering the rear plate of the chassis;
3. The display device according to claim 1, wherein the rear frame is attached to the chassis and not attached to the front frame.

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