JP4581282B2 - Luminescent display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a light-emitting display device that is provided in an electronic device or the like and displays an operation state, a power-on state, and the like by light emission of a light-emitting element such as an LED.
[0002]
[Prior art]
For example, in a personal computer (personal computer), each component device can be connected to, for example, a 5 GHz band home network as proposed in the infrared system or IEEE 802.11, a 2.45 GHz band LAN, or a Bluetooth of a small-scale wireless communication system. A wireless network system that connects wirelessly has been proposed.
[0003]
In such a wireless network system, a light emitting display unit 102 is provided in the case 101 shown in FIG. 6 which wirelessly connects between the computer main body and each peripheral device and displays the mutual connection state and the transmission / reception state of information signals. The wireless repeater 100 is used.
The wireless repeater 100 is connected to connection ports of a computer main body and various peripheral devices constituting the system via a 10 base cable 103a, and power is supplied via a power cord 103b. Each wireless repeater 100 wirelessly transmits and receives information signals and the like to and from the computer main body and peripheral devices, thereby constituting a personal computer system.
[0004]
The wireless repeater 100 is provided with a power supply circuit, a wireless transmission / reception function, and the like in a thin box-shaped casing 101 in which an upper case 104 and a lower case 105 are combined. As shown in FIGS. 7 and 8, the wireless repeater 100 is provided with a wiring board 106 on which a wireless transmission / reception circuit unit and the like are mounted on the bottom surface of the lower case 105. In the wireless repeater 100, a plurality of light emitting elements 107 for emitting and displaying a connection state between connected devices in a wireless run, a power on / off state, or an information signal transmission / reception state are mounted on a wiring board 106. Note that the light emitting element 107 may be mounted on an element substrate on which a drive circuit is formed, for example.
[0005]
In the wireless repeater 100, when the light emitting element 107 is selectively turned on corresponding to each display function, the operation state of the wireless repeater 100 is displayed on the light emitting display unit 101. As shown in FIGS. 6 and 7, the light emitting display unit 101 includes three rectangular opening portions formed on the front surface side of the upper case 104 so as to straddle the front surface 104 a and the upper surface 104 b. Specifically, the light emitting display unit 101 includes a rectangular opening 108 formed across the front surface 104 a and the upper surface 104 b of the upper case 104, and a light guide member assembly unit formed integrally on the inner surface of the upper case 104. 109, the light guide member 110 assembled in each of these light guide member assembly portions 109, the light emitting element 107 described above, and the like.
[0006]
As shown in FIGS. 6 and 7, each light guide member assembly portion 109 is formed integrally with the inner surface of the upper case 104 so as to correspond to each rectangular opening 108. Each light guide member assembly 109 has an upper end integrated with the inner surface of the upper surface 104b of the upper case 104 and a lower end opened. In the upper case 104, a pair of stud portions 111 (111a, 111b) having a length parallel to both side surfaces of the light guide member assembling portion 109 and substantially equal to the upper end portion are erected from the inner surface of the upper surface 104b. Yes. Each stud portion 111 is integrally formed with a welding projection 111c, 111d at the tip.
[0007]
Each light guide member 110 is formed of a light-transmitting material such as acrylic resin, and has a plate-like light guide base 112, a light guide display piece 113 erected integrally with the light guide base 112, and a light guide. It consists of attachment parts 114 (114a, 114b) integrally formed at both ends of the optical base 112. The light guide member 110 is assembled to the light guide member assembly portion 109 by fitting the light guide display piece portion 113 into the internal space as will be described later. In this state, the front surface and the upper surface of the upper end portion of the light guide display piece 113 are fitted into the rectangular opening 108 of the housing 101 in the light guide member 110.
[0008]
Each light guide member 108 is formed by bending the attachment portion 114 into an L shape from both ends of the light guide base portion 112, and attachment holes 115 (115a, 115b) are formed in the horizontal portion at the tip. ing. The light guide member 108 is formed such that the interval between the mounting holes 115 is equal to the interval between the stud portions 111 on the housing 101 side.
[0009]
As described above, the light guide member 110 configured as described above is attached to the light guide member assembly portion 109 by fitting the light guide display piece portion 113 into the inner space of the light guide display piece portion 113. The portion 114 is placed on the stud portion 111 with its horizontal portion. In the light guide member 110, the welding convex portions 111 c and 111 d of the stud portion 111 are fitted in the mounting holes 115 of the mounting portion 114. The light guide member 110 is fixed on the stud portion 111 by performing a welding process on the welding convex portions 111 c and 111 d penetrating the mounting hole 115. The light guide member 110 may be screwed onto the stud portion 111 with a small screw.
[0010]
The light guide member 110 is opposed to the light emitting element 107 of the wiring board 106 in which the light guide base 112 is assembled on the lower case 105 side by combining the upper case 104 and the lower case 105. The light guide member 110 is connected to the wireless repeater 100 when the light emitting element 107 is selected and turned on when the wireless repeater 100 is connected between the wireless connection devices, the power is turned on, or the information signal is transmitted / received between the devices. Light emitted from the light emitting element 107 is guided to the inside through the light guide base 112. The light guide member 110 guides the emitted light from the light emitting element 107 from the light guide base 112 to the light guide display piece 113 and exposes it from the rectangular opening 108 to the outside. As a result, the wireless repeater 100 performs light-emitting display in a state where the light-emitting display unit 102 shines and a predetermined operation function is performed.
[0011]
[Problems to be solved by the invention]
As described above, in the wireless repeater 100, the emitted light of the light emitting element 107 that is turned on by performing a predetermined operation function is guided to the light emitting display unit 102 via the light guide member 110, and the light guide member 110 The light-emitting display piece 113 is exposed and displayed. In the wireless repeater 100, after the light guide member 110 is fitted in the internal space of the light guide member assembly portion 109 formed on the upper case 104 with the light emitting display piece portion 113, the attachment portion 114 is attached to the stud portion 111. It was attached by welding or a small screw.
[0012]
Therefore, in the wireless repeater 100, the welding process and screwing process for attaching the light guide member 110 are required, and the process is troublesome. Further, in the wireless repeater 100, since the attachment portion 114 and the attachment hole 115 are formed, the shape of the light guide member 110 becomes complicated and the cost is increased, and the light guide base portion 112 guides the light from the inside. There is a problem that light emitted from the light emitting element 107 is exposed from the mounting portion 114 and the light efficiency is deteriorated.
[0013]
Further, in the wireless repeater 100, the light guide member 110 is fitted with the light emitting display piece 113 in the internal space of the light guide member assembly 109, thereby exposing the light emitted from the light emitting element 107 from the outer peripheral surface. And more efficient light-emitting display is performed. For this purpose, the light guide member 110 is preferably fitted with the light emitting display piece 113 in a state in which the outer peripheral surface thereof is substantially in close contact with the inner surface of the light guide member assembly 109. In the wireless repeater 100, since the light guide member 110 is attached to the light guide member assembling portion 109 with the above-described structure, there is a problem that misalignment may occur at the time of welding or screwing, resulting in poor assembly efficiency. there were.
[0014]
Therefore, according to the present invention, the light guide member formed in a simple shape with respect to the light guide member assembly portion formed in the housing is assembled by a so-called one-touch operation so that the assembly process is rationalized and the display efficiency is improved. The present invention has been proposed for the purpose of providing a light emitting display device that achieves the above.
[0015]
[Means for Solving the Problems]
In the light emitting display device according to the present invention that achieves the above-described object, a display opening is opened across the upper surface and the front surface, and a bowl-shaped light guide member assembly is formed on the inner surface corresponding to the display opening. The housing includes an integrally formed case, and a light guide member that guides outgoing light emitted from the light emitting element disposed inside the case to the light emitting opening. The light guide member is formed by integrally forming a plate-like light guide base portion for guiding light inside and a light emitting display piece portion standing integrally with the light guide base portion using a translucent material. The light guide member is fitted to the display opening of the housing and exposed to the outside at the front end side of the light emitting display piece fitted inside the light guide member assembly, and is emitted from the light emitting element. An upper surface light emitting unit and a front light emitting unit for exposing the incident light to the outside are configured. The housing includes a step formed by an inclined edge inclined in an inner direction of the light guide member at a lower end edge of the light guide member assembly portion and a vertical edge that engages a rear end portion of the light guide base. A locking projection that is integrally projected on the inner surface corresponding to the optical member assembly is formed. The light guide member is assembled to the housing by locking and holding the light guide base by the locking projection and the step.
[0016]
In the light emitting display device according to the present invention configured as described above, the light emitting display piece is fitted into the internal space of the light guide member assembling portion, and the light guiding member is assembled.
In the light emitting display device, a part of the side surface formed on the front end side of the light emitting display piece portion is exposed from the upper surface opening portion and the front surface opening portion of the housing in a state where it is assembled to the light guide member assembly portion. In the light emitting display device, the emitted light emitted from the light emitting element is guided from the light guide base to the light emitting display piece, and the light emitting display is performed by exposing from the portion exposed to the upper surface opening and the front surface opening. To be done. In the light emitting display device, the light guide base is positioned and held by the step and the locking projection in a state where the light emitting display piece is fitted and pushed into the light guide member assembly. Therefore, in the light emitting display device, the light guide member is assembled to the housing by a so-called one-touch operation, and a process for fixing the light guide member is not necessary, and the assembly process can be greatly rationalized. In addition, the light emitting display device has a simple shape that eliminates the need for a mounting stud portion on the housing side and has no mounting portion formed on the light guide member. The light emitted from the element is efficiently guided to the light emitting display unit, and the display efficiency is improved.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The light-emitting display device shown as the embodiment is also connected to a connection port of a main body device such as a computer main body or various peripheral devices via a 10 base cable or a power cable, and information signals exchanged between the main body devices are wirelessly transmitted. It is applied to the radio repeater 1 that relays.
The wireless repeater 1 displays a power-on state, a connection state between devices, or a transmission / reception state such as an information signal.
[0018]
Although not shown, the wireless repeater 1 has a built-in wireless transmitter / transmitter, and as shown in FIG. 2, an upper case 3 formed in an overall box shape and a lower case that is assembled with its bottom portion closed. 4 is provided with a housing 2 configured in a thin box shape as a whole.
The upper case 3 is provided with a light-emitting display unit 5 that displays the operation states of the above-described functions in a light-emitting manner across the upper surface 3a and the front surface 3b directed to the counterpart wireless repeater 1 to be connected. The light emitting display unit 5 has one light emitting unit corresponding to each function, and each light emitting unit opens in a slit shape across the upper surface portion 3a and the front surface portion 3b of the upper case 3 orthogonal to each other. The three rectangular display openings 6, a light guide member assembling portion 7 (7 a to 7 c), details of which will be described later, a locking projection 8, and a light guide member 9.
[0019]
Although not described in detail, the lower case 4 has a wiring board 10 on which a wireless transmission / reception circuit unit and the like are mounted on and supported by a plurality of pedestal units formed on the inner surface. On the wiring board 10, three light emitting elements 11 are mounted in parallel with each other at positions corresponding to the respective light emitting display openings 6 of the light emitting display section 5 in the vicinity of the end facing the front surface 3 b of the housing 2. . Each light emitting element 11 is selectively turned on by an output from a driver circuit (not shown) mounted on the wiring board 10 when a transmission / reception operation such as an information signal is performed between the paired wireless repeaters 1.
[0020]
The light guide member assembling part 7 is assembled with a light guide member 9 as will be described in detail later, and holds the light guide member 9 and prevents light leakage from the outer peripheral surface. The light guide member assembling portion 7 is integrally formed on the inner surface of the upper case 3 so as to correspond to each light emitting display port 6 and straddle the upper surface 3a and the front surface 3b. As shown in FIGS. 1 and 2, the light guide member assembling portion 7 includes side wall portions 7a and 7b that are connected to the upper surface 3a and the front surface 3b and face each other, and an upper surface 3a and a side wall that face the front surface 3b. It consists of a back wall portion 7c connected to the portions 7a and 7b, and is formed to have a bowl shape having a rectangular space portion whose lower end portion is opened.
[0021]
The light guide member assembling part 7 is configured by adding step 12 (14a, 14b) to the lower end edges of the side wall parts 7a, 7b. As shown in FIG. 2, the light guide member assembling portion 7 is composed of an inclined surface 14a inclined to the front surface 3b side and a vertical surface 14b continuous to the inclined surface 14a.
[0022]
The locking projection 8 is integrated with the inner surface of the front surface 3b of the upper case 3 at a predetermined height position b (see FIG. 3) from the fitting recess 13 so as to correspond to the light guide member assembly portion 7. Projected to The locking projection 8 is formed on the front surface 3 b of the upper case 3 such that the distance c between the locking projection 8 and the step 12 is substantially equal to the size of the light guide base 15 in the width direction. In addition, you may form the latching convex part 8 in the wedge shape which attached | subjected the inclination so that thickness might become small gradually toward the upper end side, for example from a lower end side.
[0023]
As will be described in detail later, the upper case 3 holds the light guide member 9 by the configuration of the step 12 of the light guide member assembly 7, the locking projection 8, and the display opening. Therefore, the upper case 3 has a simple structure that does not include the stud portion 111 that fixes the light guide member 9 unlike the conventional upper case 104 described above. Thus, the upper case 3 is molded by a molding die having a simple structure, and the internal space efficiency is achieved without the occurrence of sink marks on the upper surface 3a due to the formation of the stud portion 111.
[0024]
Each light guide member 9 is integrally formed of a synthetic resin material such as an acrylic resin or a polycarbonate resin that is transparent or translucent and has good light transmittance, for example, and is integrally formed from the light guide base 15 and the light guide base 15. The light guide display piece 16 is provided upright. As will be described later, the light guide member 9 is assembled to the light guide member assembly 7 by fitting the light guide display piece 16 into the internal space. In this state, the light guide member 9 has the upper surface portion and the front surface portion on the upper end side of the light guide display piece 16 fitted in the display opening 6 of the housing 2, respectively, and the upper surface light emitting portion 16 a and the front light emitting portion 16 b. Configure.
[0025]
The light guide base 15 has a rectangular plate shape, the length in the longitudinal direction is larger than the distance between the side wall portions 7a and 7b of the light guide member assembly part 7, and the length in the width direction is the distance c. It is formed approximately the same. As will be described later, the light guide base 15 is assembled to the light guide member assembling unit 7 in a state of being latched and held by the step 12, the latching protrusion 8, and the display opening 6.
[0026]
The light guide display piece 16 is composed of a plate-like portion integrally provided upright from the upper surface of the light guide base 15 and guides the emitted light of the light emitting element 11 guided from the light guide base 15 to the inside as will be described later. Shine. The light guide display piece 16 is slightly refracted toward the front side at the upper end side, and the top light emitting part 16a and the front light emitting part 16b are formed as described above.
In the light guide display piece 16, the width between the upper surface light emitting portion 16 a and the front light emitting portion 16 b at the upper end is the distance between the locking convex portion 8 on the upper case 3 side and the rear wall portion 7 c of the light guide member assembly portion 7. It is set slightly smaller than c (see FIG. 3).
[0027]
The light guide display piece 16 has an upper surface light emitting portion 16a and a front light emitting portion 16b with a curvature substantially equal to the arc surface attached to the corner of the upper case 3 and a sectional shape of the opening shape of the display opening portion 6. And it has been made somewhat larger and connected. In the state where the light guide display piece portion 16 is assembled to the light guide member assembling portion 7, the upper surface light emitting portion 16a and the front light emitting portion 16b are substantially the same as the upper surface 3a and the front surface 3b of the upper case 3 as shown in FIG. Configure the surface.
[0028]
The light guide member 9 includes the light guide base portion 15 and the light guide display piece portion 16 as described above, and is formed in a simple shape that does not have the attachment portion 114 unlike the conventional light guide member 110. Therefore, the light guide member 9 can be reduced in cost by being molded by a molding die having a simple structure. Further, since the light guide member 9 has a structure that does not have a projecting portion that forms the attachment portion, the light emitted from the light emitting element 11 guided to the inside from the light guide base portion 15 is exposed to the outside as described later. This is suppressed, and the light efficiency is improved.
[0029]
The light guide member 9 has a plurality of inclined surfaces with appropriate inclination angles on the back side of the light guide display piece 16 so as to totally reflect the emitted light from the light emitting element 11 guided inside. You may make it comprise. With this configuration, the light guide member 9 suppresses leakage of emitted light from the light emitting element 11 guided to the inside, thereby improving the light efficiency.
[0030]
The light guide member 9 configured as described above is fitted to the internal space of the light guide member assembly 7 from the light guide display piece 16 side. In the light guide member 9, the width of the top light emitting portion 16a and the front light emitting portion 16b is smaller than the distance c between the locking convex portion 8 and the step 12, so that the light guide display piece 16 is shown in FIG. As shown, the light guide member assembly 7 is inserted into the internal space.
[0031]
As shown in FIG. 5, the light guide member 9 is inserted into the light guide member assembly portion 7 until the upper end portion of the light guide display piece portion 16 abuts the upper surface 3 a of the upper case 3. Hits the lower edge of the step 12. From this state, the light guide member 9 is further pushed into the light guide member assembly 7 toward the front surface 3b side of the upper case 3 in the direction indicated by the arrow in FIG. Slides along the inclined surface 14a of the step 12 to the lower edge of the side walls 7a, 7b. When the light guide member 9 is assembled, the light guide member 9 abuts on the locking convex portion 8 and is positioned in the left direction in FIG. 3, and the upper surface light emitting portion 16 a and the front light emitting portion 16 b of the light guide display piece portion 16 are displayed on the display opening It is fitted to the part 6. At this time, the rear end edge of the light guide base 15 falls from the inclined surface 14a of the step 12 to the vertical surface 14b, thereby positioning in the right direction in FIG. The state of being incorporated in the light guide member assembling part 7 is notified.
[0032]
In this state, as shown in FIG. 2, the light guide member 9 has one side surface in the width direction of the light guide display piece 16 and the rear end portion of the light guide base 15, and the vertical surface of the locking protrusion 8 and the step 12. It is assembled to the light guide member assembling part 7 by being positioned and sandwiched between 14b. Moreover, the thickness of the slit shape of the opening display portion 6 is formed slightly smaller than the size in the thickness direction of the arc-shaped portion formed by the upper surface light emitting portion 16a and the front light emitting portion 16b. 5 is slightly press-fitted and held by the light guide frame mounting portion 7. In this way, the light guide member 9 is assembled to the upper case 3 by a so-called one-touch operation. The light guide member 9 can be efficiently assembled to the upper case 3 by a one-touch assembly without the need for a welding process or a screwing process using a set screw or the like as in the prior art.
[0033]
The upper case 3 is combined with a lower case 4 in which a wiring board 10 and various electronic components are assembled on the bottom surface portion to constitute the housing 2. In the light guide member 9, the upper case 3 is combined with the lower case 4 from above, but the light guide member 9 is not dropped from the upper case 3 by the above-described configuration. The light guide member 9 is fixed and held by abutting a stud or the like formed on the lower case 4 side against the bottom surface of the light guide base 15, for example.
[0034]
By combining the upper case 3 and the lower case 4, the light guide member 9 faces the light emitting element 11 having the light guide base 15 mounted on the wiring substrate 10 as shown in FIG. 2. The light guide member 9 is connected to the wireless repeater 1 when the light emitting element 11 is selected and turned on when the wireless repeater 1 is connected between the wireless connection devices, the power is turned on, or the information signal is transmitted / received between the devices. The outgoing light emitted from the light emitting element 11 is guided to the inside through the light guide base 15. The light guide member 9 guides light emitted from the light emitting element 11 from the light guide base 15 to the light guide display piece 16, and from the top light emitting part 16 a and the front light emitting part 16 b fitted in the display opening 6. Exposure to the outside.
[0035]
As a result, the wireless repeater 1 performs light-emitting display in a state where the light-emitting display unit 5 shines and a predetermined operation function is performed. In the wireless repeater 1, light emission display is simultaneously performed on the upper surface and the front surface of the housing 2 by the upper surface light emitting unit 16 a and the front light emitting unit 16 b of the light guide member 9. Accordingly, the wireless repeater 1 is placed on a desk or the like, and the light emitting display unit 5 is visually recognized from an obliquely upper side on the front side by an operator of the personal computer, but the operation state can be surely visually confirmed.
[0036]
In the above-described embodiment, the application example to the wireless repeater 1 that wirelessly relays information signals exchanged between the computer main body and various peripheral devices has been shown. However, the present invention is limited to the wireless repeater 1. Needless to say, it is used in various electronic devices. Needless to say, the present invention is also applied to various light-emitting display devices that display an operation state or the like by lighting the light-emitting element 8.
[0037]
【The invention's effect】
As described above in detail, according to the light emitting display device of the present invention, the light guide base is the light guide member assembly portion in a state where the light guide member is assembled with the light emission display piece portion on the light guide member assembly portion. By being configured to be positioned and narrowed by the step provided on the lower edge of the bottom and the locking projection, the light guide member can be assembled to the housing by a so-called one-touch operation. The process for fixing becomes unnecessary, and the assembly process can be greatly rationalized. In addition, since the light emitting display device has a simple shape in which a mounting portion is not formed on the housing or the light guide member, the cost of the member is reduced and light is emitted from the simple shape of the light guide member with less unevenness. The light emitted from the element is efficiently guided to the light emitting display unit, and the display efficiency is improved.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a main part of a wireless repeater used in a wireless run system shown as an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of a main part of the wireless repeater.
FIG. 3 is an explanatory diagram of a process of assembling the light guide member to the upper case in the wireless repeater, and shows a state in which the light guide member is associated with the light guide member assembling portion.
FIG. 4 is an explanatory diagram of a process of assembling the light guide member to the upper case in the wireless repeater, showing a state in which the light guide member is fitted to the light guide member assembling portion.
FIG. 5 is an explanatory diagram of a process of assembling the light guide member to the upper case in the wireless repeater, showing a state in which the light guide member is fitted until it hits the light guide member assembling portion.
FIG. 6 is a perspective view of a wireless repeater.
FIG. 7 is an exploded perspective view of a main part of a conventional wireless repeater.
FIG. 8 is a longitudinal sectional view of an essential part of the wireless repeater.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Radio repeater 2 Case 3 Upper case 3a Upper surface 3b Front surface 4 Lower case 5 Light emission display part 6 Display opening part 7 Light guide member assembly part 8 Locking convex part 9 Light guide member 10 Wiring board 11 Light emitting element 12 Step 13 Fitting recess 14a Inclined surface 14b Vertical surface 15 Light guide base 16 Light guide display piece 16a Upper surface light emitting portion 16b Front light emitting portion

Claims (2)

A display opening spanning between the upper surface and the front surface is opened, and a housing in which a bowl-shaped light guide member assembly is integrally formed on the inner surface corresponding to the display opening,
A plate-shaped light guide base that guides the emitted light emitted from the light emitting element disposed inside the housing to the inside, and the light guide member assembly that is integrally provided on the light guide base An upper surface light emitting portion and a front light emitting portion configured on the front end side by being fitted inside are exposed to the outside from the display opening of the housing, and the light emitted from the light emitting element is exposed to the outside. A light-emitting display piece, and a light guide member formed integrally with a translucent material,
The casing includes a step formed by an inclined edge that is inclined in an inner direction of the light guide member and a vertical edge that engages a rear end portion of the light guide base at a lower end edge of the light guide member assembly part. , A locking projection that is integrally projected on the inner surface corresponding to the light guide member assembly is formed,
The light emitting display device, wherein the light guide member is assembled to the housing by locking and holding the light guide base by the locking projection and the step. The light guide member assembling portion covers the outer peripheral portion of the light emitting display piece portion of the light guide member assembled inside, and thereby the light emitted from the light emitting element guided into the light emitting display piece portion. The light emitting display device according to claim 1, wherein leakage is prevented.

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