JP4288038B2 - Mobile terminal device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mobile terminal device for communication such as a mobile phone.
[0002]
[Background Art and Problems to be Solved by the Invention]
The mobile phone has a light emitting unit that notifies incoming calls, remaining charge, and the like. A conventional light emitting unit is configured by a solid reflector made of a synthetic resin and an LED, and the LED is arranged facing a bottom surface facing the light emitting surface of the reflector. In this case, since the reflector and the LED are lined up and down, the vertical space for accommodating the light emitting portion is increased, which hinders the thinning of the mobile terminal device.
Further, the reflector is attached crowded because fitting the equipment cabinet, when an external force to push the reflector in the cabinet is applied, the reflector there is possibility of damaging by pressing the circuit board of the LED or LED. In addition, there is a demand to make the light emitting part wide and easy to see, and to differentiate the design. However, if the reflector is made wide and the LED is placed facing the center of the bottom, the light emitting surface of the reflector is centered. There is a problem that the portion is brightly lit and the outside is darkened, and a plurality of LEDs are required to emit light without unevenness on the light emitting surface, resulting in high cost.
The present invention clarifies a portable terminal device that can solve the above problems.
[0003]
[Means for solving the problems]
The present invention provides a portable terminal device having a main display window (11) and an operation unit (94) on a cabinet, and a built-in light emitting unit (5) for notifying incoming calls, remaining charge, etc. is constituted by oblong reflector (6) and the cabinet by the light source (7) which is deployed on the outside of the reflector (6), the reflector (6) is emitting surface emitting unit for elongated hole of the cabinet (22) ( The light source (7) is disposed facing the light incident surface (61) of the reflector (6) from the side with respect to the light emitting surface (60) of the reflector (6). It is characterized by being.
[0004]
On the bottom side opposite to the light emitting surface (60) of the reflector (6), the side surface on the light source (7) side is the light incident surface (61) over the entire length, and the light incident surface (61) is the light source (7). It is desirable to bend gently in the direction of surrounding.
[0005]
[Action and effect]
Since the light source (7) is disposed on the side of the reflector (6), the overall height of the light emitting section (5) can be reduced, which can contribute to the thinning of the mobile terminal device. Even if an external force is applied to push the reflector (6) into the cabinet, the light source (7) and the light source substrate (71) do not exist below the reflector (6), and there is no possibility of damaging them. . Since light is incident from the side surface of the reflector (6) and emitted upward, light emission spots on the light emitting surface (60) can be reduced compared to light incident from the bottom surface of the reflector (6) and emitted upward. If the light incident surface (61) of the reflector (6) is gently curved in the direction surrounding the light source (7), the effect of the concave lens on the reflector (6), that is, the light is moved outward in the reflector (6). A spreading effect is produced, and the light emission spots on the light emitting surface (60) can be further corrected.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a foldable mobile phone. As shown in FIG. 2, the cabinet of the mobile phone includes a front cabinet (9) and a rear cabinet (90). In the folded state, the inner side is the front cabinet (9) and the outer side is the rear cabinet (90). The front cabinet (9) folds the first front case (1) having the main display window (11) and the second front case (3) having the operation button hole group (31) at the hinge portion (91). Connected and formed. The rear cabinet (90) is composed of a first rear cover (2) that covers the back of the first front case (1) and a second rear cover (4) that covers the back of the second front case (3). Is fixed to the front case by screws.
[0007]
A multilayer circuit board (8) on which an image circuit board (92) including a main liquid crystal board and a sub liquid crystal board (23) are mounted is disposed between the first front case (1) and the first rear cover (2). Between the second front case (3) and the second rear cover (4), a system circuit board (93) including an operation unit (94) including an operation button group (94) is provided. As shown in FIG. 7, the system circuit board (93) and the multilayer circuit board (8) are connected by a connecting flexible board (82) passing through the hinge (91), and the multilayer circuit board (8) and the image are connected. The circuit board (92) is connected to the flexible board (83).
[0008]
As shown in FIGS. 1 and 4, the first rear cover (2) is provided with a transparent sub display window (21) on the hinge part (91) side, and a sub liquid crystal plate (21) is opposed to the sub display window (21). 23) is deployed. The sub liquid crystal plate (23) is mounted on the multilayer circuit board (8) as described above.
[0009]
As shown in FIG. 5, a nose portion (20) covering the hinge portion (91) is formed at the tip of the first rear cover (2) on the hinge portion (91) side. As shown in FIG. 4, the nose portion (20) is formed to be narrow with both ends recessed, and as shown in FIG. 5, the tip side is gradually thinned in the height direction with a gentle arc shape. Yes. In the nose part (20), a light emitting part long hole (22) is formed in a direction along the axis of the pivot (91a) of the hinge part (91).
[0010]
A light emitting part (5) is built in the nose part (20). The light emitting unit (5) includes a reflector (6) and a light source (7) arranged on the side of the reflector (6). The reflector (6) is a milky white translucent horizontally long solid body made of synthetic resin, and is fitted into the long hole (22) for the light emitting part of the nose part (20) from the inside of the first rear cover (2). The bottom surface (67) is pushed up by the pressing surface (10) on the first front case (1), and the flanges (65) and (66) projecting on both side edges in the longitudinal direction are inserted into the long holes for the light emitting section (22 ) On the inner edge of the hole (25) (25). The first front case (1) is formed with a baffle wall (12) on the side of the sub liquid crystal plate (23) perpendicular to the pressing surface (10), and the baffle wall (12) is a light source (7 ) Is used when installing. As shown in FIG. 4, elastic attachment pieces (63) and (63) having holes (64) are provided on the bottoms of both ends of the reflector (6), and protrusions (not shown) are provided on the first rear cover (2). )).
[0011]
In the reflector (6), the surface exposed to the light emitting portion elongated hole (22) becomes the light emitting surface (60), and the light emitting surface (60) is inclined along the curvature of the nose portion (20). The reflector (6) is decorated with decorative frame plating on the outer peripheral edge of the light emitting surface (60), and the plated layer is closer to the light emitting surface (60) side than the flange (65) (66) of the reflector (6). A light shielding surface (62) is formed covering the entire circumference. As shown in FIG. 3, the sub liquid crystal plate (23) side surface of the reflector (6) is a light incident surface (61), and both ends of the light incident surface (61) are close to the sub liquid crystal plate (23). It is gently curved as you do. The size of the reflector (6) of the embodiment is about 15 mm in length (excluding the mounting pieces (63) and (63) ), about 4 mm in width, and about 2 mm in height at the tip side of the nose part (20). (23) is about 4 mm.
[0012]
The light source (7) of the embodiment is an LED having light emitting elements of three colors of red, blue, and green, and can emit light in seven colors by using the light emitting elements alone and in combination. The light source (7) is mounted on the light source substrate (71) and is opposed to the approximate center of the light incident surface (61) of the reflector (6) between the reflector (6) and the sub liquid crystal plate (23). Deployed. The light source substrate (71) is connected to the flexible substrate (81) that protrudes from the multilayer circuit substrate (8) to the reflector (6) side to a length of about 1 to 3 mm. The light source substrate (71) is a small piece having a length of about 9 mm and a width of about 4 mm, and a supporting sheet (72) is bonded to the back surface. The length of the sheet (72) is about 30 mm, which is about the length of the sub liquid crystal plate (23), and is hooked to the wall pieces (13) and (13) on the first front case (1) at both ends . It has a piece (73) (73). The sheet (72) also serves to prevent light from the light source (7) from leaking to the sub liquid crystal plate (23) side, and is light-shielding. The light source substrate (71) is arranged upright along the baffle wall (12) between the baffle wall (12) on the first front case (1) and the sub liquid crystal plate (23). .
[0013]
Therefore, in order to incorporate the light source (7) into the first front case (1), the multilayer circuit board (8) on which the sub liquid crystal plate (23) is mounted is fitted into a predetermined position of the first front case (1). At this time, the light source board (71) connected to the circuit board (8) by the short flexible board (81) hits the baffle wall (12) on the first front case (1), and naturally the baffle wall (12 ) Stand up along. The light source substrate (71) is a small piece, and is not positioned between the baffle wall (12) and the sub liquid crystal plate (23) by merely connecting the multilayer circuit substrate (8) and the flexible substrate (81). . However, the mounting pieces (73) and (73) at both ends of the sheet (72) joined to the back surface of the light source substrate (71) are caught by the wall pieces (13) and (13) on the first front case (1). The light source substrate (71) is positioned in the left-right direction. As described above, the light source board (71) that is difficult to be assembled vertically in a small space with a small piece can be easily assembled by using the baffle wall (12) of the first front case (1). The first rear cover (2), in which the reflector (6) is fitted in the light emitting portion long hole (22) in advance, is put on the first front case (1) and fixed with screws. The sheet (72) of the light source substrate (71) is pressed by the first rear cover (2), the light source substrate (71) is also positioned in the upward direction, and the light source (7) is the light incident surface of the reflector (6) ( Oppose 61).
[0014]
As described above, the reflector side surface between the light emitting surface (60) of the reflector (6) and the reflector bottom surface (67) opposite to the light emitting surface is the light incident surface (61), and the thickness direction of the cabinet Since the light source (7) is disposed so as to face the light incident surface (61) from the direction transverse to the light source, the height of the light emitting section (5) in the cabinet thickness direction can be reduced. For this reason, the reflector (6) is built in the thin nose portion (20) at the tip of the first rear cover (2), and the nose portion (20) can be covered with the hinge portion (91) for a smart design. . Since the nose portion (30) is curved in a direction in which the tip side approaches the hinge portion (91), as shown by arrows A and B in FIG. Therefore, the light emitting part (5) can be visually observed. Therefore, it is convenient to know the blinking state of the light emitting unit (5) by simply looking into the pocket while the mobile phone is in the pocket of the clothes. There is no light source (7) or light source substrate (71) below the reflector (6), and even if an external force is applied to push the reflector (6) into the cabinet, the light source (7) or light source substrate There is no risk of damaging (71).
[0015]
Since light is incident on the lower light incident surface (61) of the reflector (6) from the side to emit light upward, light is emitted compared to light incident from the bottom of the reflector (6) and emitted upward. Luminous spots on the surface (60) can be reduced. Moreover, the light incident surface (61) is curved in a direction surrounding the light source (7), and the outer peripheral surface on the light emitting surface (60) side of the reflector (6) is a light shielding surface (62) over the entire circumference. Therefore, the light spreads outward in the reflector (6) and is repeatedly reflected by the light shielding surface (62) to emit light from the light emitting surface (60), so that the light emitting surface (60) emits light substantially uniformly.
[0016]
The above description of the embodiments is for explaining the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. In addition, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims.
[Brief description of the drawings]
FIG. 1 is a perspective view of a folding mobile phone.
FIG. 2 is an exploded perspective view of a cellular phone cabinet.
FIG. 3 is an explanatory diagram of the inside of the hinge portion side of the first front case.
FIG. 4 is a perspective view of the front end portion of the first front case and the first rear cover on the hinge side.
FIG. 5 is a cross-sectional view showing a mounting state of the light emitting unit.
FIG. 6 is an explanatory diagram of a procedure for attaching a light source substrate.
FIG. 7 is a plan view of a multilayer circuit board and a light source substrate.
FIG. 8 is a front view of a light source substrate attached.
[Explanation of symbols]
(1) First front case
(2) First rear cover
(3) Second front case
(4) Second rear cover
(5) Light emitting part
(6) Reflector
(60) Light emitting surface
(61) Incident surface
(7) Light source
(71) Light source substrate
(72) Seat
(8) Multilayer circuit board
(81) Flexible substrate

Claims (8)

In a portable terminal device having a main display window (11) and an operation unit (94) on a cabinet and having a light emitting unit (5) for notifying incoming calls, remaining charge, etc., the light emitting unit (5) is a horizontally long reflector ( 6) and a light source (7) arranged outside the reflector (6) in the cabinet. The reflector (6) has a light emitting surface (60) outside the long hole (22) for the light emitting section of the cabinet. The side surface of the reflector (6) between the light emitting surface (60) of the reflector (6) and the reflector bottom surface (67) opposite to the light emitting surface is a light incident surface (61). A portable terminal device, wherein a light source (7) is provided facing the light incident surface (61) from a direction transverse to the thickness direction of the cabinet .   On the opposite bottom side of the reflector (6), the side surface on the light source (7) side becomes a light incident surface (61) over the entire length, and the light incident surface (61) is gently in a direction surrounding the light source (7). The mobile terminal device according to claim 1, wherein the mobile terminal device is curved.   The portable terminal device according to claim 1 or 2, wherein the light emitting surface (60) side of the reflector (6) is a light shielding surface (62) over the entire circumference.   A light source board (71) is connected from the circuit board (8) through a short flexible board (81), and when the circuit board (8) is assembled, the light source board (71) hits a baffle wall (12) in the cabinet. 4. The light receiving surface (61) is stood up along the light incident surface (61) of the reflector (6) and accommodated in the cabinet, and the light source (7) is opposed to the light incident surface (61) of the reflector (6). The mobile terminal device according to any one of the above.   The portable terminal device according to any one of claims 1 to 4, wherein a sheet (72) is attached to the light source substrate (71), and the sheet is supported by a wall piece (13) in the cabinet.   The portable terminal device according to claim 5, wherein the sheet (72) is light-shielding.   A mobile phone cabinet is constituted by a front cabinet (9) which is pivotally connected so as to be foldable and which is in the folded state and a rear cabinet (90) which is in the folded state and which is outside. Is formed by foldably connecting the first front case (1) and the second front case (3) by a hinge portion (91), and the rear cabinet (90) covers the back of the first front case (1). Formed by a first rear cover (2) and a second rear cover (4) covering the back of the second front case (3), the reflector (6) is attached to the hinge part (91) side end of the first rear cover (2). The mobile terminal device according to claim 1, wherein the mobile terminal device is provided.   The tip of the first rear cover (2) on the hinge side is a nose portion (20) that is gradually thinned in a direction approaching the hinge portion (91), and for the light emitting portion established in the nose portion (20). The reflector (6) is provided by being fitted into the long hole (22), and the light emission of the reflector (6) can be seen from either the position directly above the first rear cover (2). The mobile terminal device described in 1.

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