JP3754281B2 - Display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an assembly structure of a flat panel display device.
[0002]
[Prior art]
A flat panel type display device used for in-vehicle or portable small devices has a front frame and a rear frame made of metal such as stainless steel or aluminum attached to a synthetic resin intermediate frame that holds the display panel. Often to do. An example is shown in FIG. In FIG. 5, reference numeral 1 denotes a liquid crystal display device, which has a liquid crystal display panel 3 held by the synthetic resin intermediate frame 2 and a backlight 4 also held by the intermediate frame 2. The backlight 4 is disposed in close contact with a linear light source 5 and a light guide plate 6 that receives light from the end surface and emits light from the main surface perpendicular to the end surface, and one main surface of the light guide plate 6. And a reflection sheet 7 that reflects light about to come out from this side. The liquid crystal display panel 3 and the backlight 4 are fixed to the intermediate frame 2 by means such as double-sided adhesive tape.
[0003]
Reference numerals 8 and 9 denote a metal front frame and a rear frame. The rear frame 9 has a shallow box shape, and covers the intermediate frame 2 from the rear surface so as to wrap the backlight 4, and engages the projection 11 of the intermediate frame 2 with the window 10 provided at the edge portion, This is attached to the intermediate frame 2. The front frame 8 has a window 12 through which the liquid crystal display panel 3 is exposed. The edge of the front frame 8 covers the edge of the rear frame 9 from the outside, and is coupled to the rear frame 9 by an uneven engagement structure (not shown) provided therebetween. . With this, the front frame 8 and the rear frame 9 are fixed to the intermediate frame 2 with the liquid crystal display panel 3, the intermediate frame 2, and the backlight 4 interposed therebetween.
[0004]
[Problems to be solved by the invention]
In the conventional structure, the front frame 8 and the rear frame 9 overlap in the thickness direction on the side surface of the intermediate frame 2. Such a thickness T1 of the overlapping portion becomes an obstacle to downsizing the liquid crystal display device 1. Recently, the so-called “narrow frame” has been promoted to make the area around the screen of the display device as small as possible. For example, even if it is only a small thickness of the metal plate, we want to reduce what can be reduced. . The present invention responds to such a demand, and proposes a structure of a display device that can eliminate the overlap of the front frame and the rear frame in the thickness direction on the side surface of the intermediate frame.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, in the present invention, in which the front frame and the rear frame are attached to the intermediate frame that holds the display panel, the engagement pieces that contact the side surfaces of the intermediate frame are provided on each of the front frame and the rear frame. Each engaging piece is elastically engaged with the intermediate frame without overlapping in the thickness direction, and the front frame side engaging pieces and the rear frame side engaging pieces are alternately arranged.
[0007]
In the above display device, the front frame side engagement piece and the rear frame side engagement piece are each elastically engaged with the intermediate frame without overlapping in the thickness direction. It is only covered by the thickness of the minutes, and the width of the frame portion of the display device can be reduced. In addition, by arranging the front frame side engaging pieces and the rear frame side engaging pieces alternately, it is possible to secure a certain length or more so that the engaging pieces protrude from the frame main body, and the uneven engagement with the intermediate frame can be carried out without difficulty. Can be configured.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 4, taking a liquid crystal display device as an example. In addition, the same code | symbol is attached | subjected to the component which is common in the conventional structure of FIG. 5, and description is abbreviate | omitted.
[0009]
The features of the present invention reside in the structure of the front frame 8 and the rear frame 9 and the structure for attaching them to the intermediate frame 2. That is, on at least one side of the liquid crystal display device 1, the front frame 8 has an engagement piece 20 in contact with the side surface of the intermediate frame 2, and the rear frame 9 also has an engagement piece 30 in contact with the side surface of the intermediate frame 2. . The arrangement of the engagement pieces 20 and 30 is as shown in FIG. 1 and FIG. 2, but a total of two engagement pieces 20 are arranged at intervals, and the engagement piece 30 is one engagement. A total of four pieces 20 are provided so as to sandwich the piece 20 between the two engagement pieces 30. When attention is paid to the arrangement of the engagement pieces 20 and the engagement pieces 30, these are alternately arranged in a staggered manner. In this embodiment, the engagement piece 20 and the engagement piece 30 are arranged with almost no gap, but this is not an essential requirement. It does not matter if there is a gap. Moreover, although the number of the engagement pieces 30 is twice the number of the engagement pieces 20, this ratio can also be set freely.
[0010]
The engaging pieces 20 and 30 engage with the intermediate frame 2 with their own elasticity. As engaging means, the engaging piece 20 is provided with a window 21, the engaging piece 30 is provided with a window 31, and the intermediate frame 2 is formed with a protrusion 22 engaging with the window 21 and a protrusion 32 engaging with the window 31. Set up. As shown in FIG. 3, the projection 22 has a slope 23 at one corner and the projection 32 has an arc 33 at one corner as seen in FIG. 4, and the edges of the engagement pieces 20, 30 are the projection 22, It is easy to get over 32.
[0011]
In a state where the engagement piece 20 is engaged with the protrusion 22 and the engagement piece 30 is engaged with the protrusion 32, the front frame 8 and the rear frame 9 are arranged so that the side surfaces of the intermediate frame 2 face each other. There is no overlap between the cover and wall thickness. Therefore, T2 in FIG. 4 corresponding to T1 of the conventional structure is only the thickness of one metal plate, and the space in the thickness direction can be saved as compared with the conventional structure. In addition, it is good also as a structure which provides protrusion instead of a window in the engagement pieces 20 and 30, and forms the recessed part or corner | angular part which this protrusion engages in the intermediate frame 2. FIG.
[0012]
The other side of the liquid crystal display device 1 can employ an engagement method different from the above, but if the same engagement structure as described above is used, the space saving rate is increased accordingly.
[0013]
【The invention's effect】
According to the configuration of the present invention, since the engagement pieces of the front frame and the engagement pieces of the rear frame are elastically engaged with the intermediate frame without overlapping each other in the thickness direction, the side surface of the intermediate frame is the front frame or the rear surface. The frame is covered only with the thickness of either one of the frames, the width of the frame portion of the display device can be reduced, and the area ratio of the display surface to the device can be increased. In addition, since the front frame side engaging pieces and the rear frame side engaging pieces are arranged alternately, the protruding length of the engaging pieces from the frame main body is determined without receiving the interference of the engaging pieces of the other frame. In the part of the intermediate frame which is required to be as thin as possible, the concave-convex engagement can be configured without difficulty.
[Brief description of the drawings]
1 is an external perspective view of a liquid crystal display device according to an embodiment of the present invention. FIG. 2 is a side view of the liquid crystal display device of FIG. 1. FIG. BB partial sectional view of Fig. 2 [Fig. 5] Partial sectional view showing a conventional structure [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Liquid crystal display device 2 Middle frame 3 Liquid crystal display panel 4 Backlight 8 Front frame 9 Rear frame 20 Engagement piece 30 Engagement piece 21 Window 31 Window 22 Protrusion 32 Protrusion

Claims (1)

In the case where the front frame and the rear frame are attached to the intermediate frame that holds the display panel, an engagement piece that is in contact with the side surface of the intermediate frame is formed on each of the front frame and the rear frame. A display device characterized in that each of them is elastically engaged with the intermediate frame without overlapping in the thickness direction, and the front frame side engaging pieces and the rear frame side engaging pieces are alternately arranged .

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