JPH0234864Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to small electronic devices, and more specifically, to electrically connect the blocks of a small electronic device consisting of two case blocks. The present invention relates to a shielding structure for a connecting member.

[Background of the idea]

In recent years, the number of small electronic devices continues to increase, as typified by game devices and pocket computers. In particular, with regard to display parts, many products using liquid crystals, which are excellent in low power consumption, have been released. Most of these utilize reflective liquid crystal display panels, but this type has the following drawbacks.

(1) As light travels back and forth inside the liquid crystal display panel, the light usage efficiency decreases and the screen becomes dark.

(2) The image becomes blurred due to the thickness of the glass in the liquid crystal display panel.

(3) The image is difficult to see due to the surface reflection of the light source on the display surface.

There were other problems.

Recently, small electronic devices have begun to appear that employ transmissive liquid crystal display panels that utilize external light as is. For example, it is structured so that external light shines on the image displayed on the liquid crystal display panel, and the transmitted light is reflected on a mirror to view the image information.
Specifically, the image display block housing the liquid crystal display panel is configured to be able to be opened and closed relative to the main body block on which the mirror is placed, and when carried, it is in a closed state.
When in use, the image display block is opened at a predetermined position (a position where the virtual image reflected on the mirror by external light is reflected correctly in the mirror when seen by the user's eyes, compared to the real image created on the liquid crystal display panel). It is of the structure used. However, in this structure, the liquid crystal display panel that displays image information and the drive control circuit that sends out image signals are separated into an image display block and a main body block, respectively.
A connecting member is required to electrically connect the liquid crystal display panel and the drive control circuit. Although this connecting member is absolutely necessary structurally, it is a meaningless member for the user, and the challenge is how to visually shield this connecting member from the outside world. was.

[Prior art and problems]

Conventionally, in small electronic devices that use transmissive liquid crystal display panels, connecting parts are visible from the outside or holes are made in a part of the case so that they are not visible from the front and back when in use (open state). In some cases, the connecting member is shielded by a shielding wall built in front of and behind the hole. but,
The former is undesirable in terms of appearance, as seen in toys such as game machines, and even if attempts are made to vary the design by changing the color of the exterior, the color of the connecting member itself or the wiring pattern that is transparent becomes a hindrance. However, there were problems such as making it difficult to make changes. In addition, in the latter case, the mold for molding the case becomes complicated and the mold cost increases.
Since the connecting member has to pass through a hole in the case, there are problems such as poor assembly workability, and due to the flat space, the remaining thickness of the shielding wall becomes thin, making it more likely to be damaged by impact such as falling. Ta.

[Purpose of invention]

The purpose of the present invention is to obtain a shielding structure for connecting members that is excellent in design, cost, installation workability, and durability, and can be realized with a simple configuration.

[Structure of the idea]

The shielding structure of the connection member of the present invention includes a main body block that houses the main electronic circuit and battery, an image display block that can be opened and closed with respect to the main body block and that houses a liquid crystal display panel, and a main body block and the image display block that can be opened and closed with respect to the main body block and that houses a liquid crystal display panel. It is composed of a connecting member for electrically connecting the display block and a film sheet fixed to the connecting member.

[Example of idea]

FIG. 1 shows an external perspective view of a liquid crystal television set employing the connecting member shielding structure of the present invention during viewing, and FIG. 2 shows a sectional view of the main parts when being carried. Moreover, FIG. 3 shows an external perspective view of a state in which the single connecting member is inverted from the assembled state. 1 is the main block, and the upper frame 100
and a lower frame 101. Upper frame 10
0 is formed with a recess 100a in which the image display block 2 is housed, and on the back side there is a rotation bearing which is a component of the image display block and which enables the image display block 2 to open and close. A cutout portion 10 in which a panel frame 200 integrally formed with a back wall 200b having a portion 200a is placed.
0b is formed. Image display block 2 is
Opening/closing button 1 integrally molded on the front surface of the upper frame 100
By pressing 00c, the hook 100d provided on the upper frame 100 is disengaged from the protrusion (not shown) on the panel frame 200, and the panel frame 200 is configured to rotate around the rotating shaft 3. A holding means (not shown) is provided between the image display block 2 and the main block 1 so that the inclination of the image display block 2 is maintained at a position of 50 degrees with respect to the horizontal line.
is provided. In this state, the image projected on the image display block 2 is reflected by external light (A) on the mirror 4.
and the viewer sees the image reflected in mirror 4.
The structure is as follows. The mirror 4 is adhesively placed in a recess 100a provided in the upper frame 100. The main body block 1 includes an electronic circuit 5 including a drive control circuit.
A battery (not shown), which serves as a driving source, and the like are housed. A liquid crystal display panel 201, which is the main part of the image display block 2, is positioned and held by a panel frame 200. 6 is a flexible printed circuit board which is a connecting member for sending the video signal output from the drive control circuit housed in the main body block 1 to the liquid crystal display panel 201 housed in the image display block 2; As shown in the figure, a film sheet 8 is bonded and integrated with a panel support plate 7, which is a reinforcing member, and has a color tone that is in harmony with the panel frame 200 in terms of design.

Therefore, as shown in FIG. 1, when viewed from the front direction (during viewing), the flexible printed circuit board 6
becomes completely invisible. 9 is a connector rubber, which connects the input pattern formed on the liquid crystal display panel 201 and the flexible printed circuit board 6.
It is electrically connected to the wiring pattern provided in the. When assembling the image display block 2, the liquid crystal display panel 201 and the connector rubber 9 are attached to the panel frame 200, and then the panel frame 200 and the panel support plate 7 are fixed with screws. The flexible printed circuit board 6 is connected to the conductive pattern of the circuit board 5a housed in the main body block 1 through a passage 200c that avoids the rotary bearings 200a provided on both sides of a back wall 200b provided in the panel frame 200. .

Therefore, the upper, back and side surfaces of the flexible printed circuit board 6 are completely hidden from view from the outside by the image display block 2. The connection portion of the main body block 1 is made by pressing the flexible printed circuit board 6 against the output pattern provided on the board 5a using the pressure bonding rubber 11 supported by the connection support frame 10, and by screwing the connection support frame 10 and the board 5a together with screws (not shown). ).

Further, the flexible printed circuit board 6 is attached to the connection support frame 10 to prevent disconnection due to movement during opening and closing.
It is adhesively fixed to the inclined part 10a provided in the. The angle of inclination of the inclined portion 10a is set to such an angle that the bending curve of the flexible printed circuit board 6 is the gentlest and provides an appropriate profile, and the flexible printed circuit board 6 is set to the above-mentioned position by the opening/closing operation of the image display block 2. Connection support frame 10
To prevent further peeling, it is placed close to the lower frame 101 to prevent complete peeling. The lower frame 101 is arranged so as to overlap the back wall 200b of the panel frame 200 in a plane, and has a structure that prevents the flexible printed circuit board 6 from being seen from below, and prevents the back wall 200b from hitting when opening and closing. A relief portion 101a is provided.

[Effect of idea]

According to the present invention, the shielding from the front direction and the shielding from other directions except the front direction are made up of members independent from the case, so the case components of the upper frame, lower frame, and panel frame are monotonous. In addition to being able to be molded with a top and bottom split mold, the front side is shielded by a highly flexible film sheet, so the rigidity of the flexible printed circuit board, which is the connecting member, is not increased, and the flexibility is reduced, making it difficult for the image display block to Problems such as slow opening/closing operations have disappeared. Furthermore, as is clear from the drawings, since the shielding plate can be made thin, there is sufficient space for the flexible printed circuit board to move, resulting in a very advantageous structure in terms of planar space. Furthermore, in terms of design, since the color of the film sheet can be freely selected, the color of the panel frame can also be freely selected, making it easy to create variations through combinations. As for installation, it is easy because the film sheet that serves as the front shielding plate is glued and fixed in a flat state when the flexible printed circuit board is alone, and the curvature is formed when the installation is completed.
Eliminating the work of passing the connecting member through a hole is very effective, and is effective as a shielding structure for connecting members used in small electronic devices.

[Brief explanation of drawings]

FIG. 1 shows a perspective view of the external appearance of a liquid crystal television set employing the connecting member shielding structure of the present invention during viewing, FIG.
The figure is a perspective view of the external appearance of a single connecting member. 1... Main body block, 2... Image display block, 6... Flexible printed circuit board, 8... Film sheet, 100... Upper frame, 101... Lower frame.

Claims (1)

[Scope of utility model registration request] It consists of a main body block that houses at least the main electronic circuit and a battery as a driving source, and an image display block that can be opened and closed with respect to the main body block and that houses a liquid crystal display panel. In a small electronic device having a connection member for making a connection, the top, back, and both side surfaces of the connection member are shielded by the image display block, the bottom is shielded by the main body block, and the connection member is shielded in an open state. A structure of a small electronic device, characterized in that the front side of the device is shielded by a film sheet fixed to the connecting member.