JP2550487Y2 - Light-emitting display operation button switch device - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention is applied to cordless telephones, portable telephones, general home telephones, etc. having a portable handset comprising a wireless transceiver, and has an external appearance within a narrow area.
The present invention relates to an operation button switch device with a light-emitting display function, which is arranged in a small and light weight without damaging the design.

[0002]

2. Description of the Related Art For example, in a mobile device of a cordless telephone, which is mainly composed of a radio transmitter / receiver, an electronic device in which a channel selection button switch, a display for display, a battery and the like are integrated in a portable type, the operation button switch and the display are used. It is generally arranged completely and separately from the part and in a narrow area, and the notation symbols, letters, etc. are attached only on the cap surface of the molded switch button, or further from the back of the cap There is known a switch that illuminates the switch so that the switch can be easily recognized in the dark and operability is improved.

[0003]

However, in the prior art, one switch button is associated with one color illuminating light, and a light emitting source is turned on or blinked repeatedly. The transmission information and one switch button have a correspondence,
If you try to illuminate the operation button with multiple emission colors,
Even if the number of colors of the light-emitting source is, for example, two, an obstacle occurs in that the number of switch buttons to be displayed by light emission increases in proportion, and it is difficult to satisfy the demands for smaller size, lighter weight, and aesthetic appearance.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned obstacles in the prior art, the present invention is mounted on a luminous body support plate,
By combining a plurality of illumination modes corresponding to different transmission information and a different color light source, the light guide glove and the light guide are provided on the light emitting surface of each light emitting element which emits light over substantially the entire surface of the button cap of one operation switch and the local area, respectively. Gloves with holes,
A raised portion for transmitting a pressing force is inserted through a flexible molded cover integrally formed, and a set of individual button caps is integrally formed into a frame holding configuration.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is an exploded vertical sectional view of the device of the present invention,
(A) is a flange 53 provided and held by a frame (not shown), and a protruding light guide globe 4-2 of the molded cover 4 described later.
Is a semi-transparent button cap 5 serving as a key top having an embedding space 51 into which a button is inserted, and has an actual size of 2 mm or less. A projection 54 for applying a downward pressing force to the lower surface and an antiglare layer 52 for reflecting scattered light of the illuminating element 2-1 described below are provided on the periphery of the lower surface opening of the embedding space.

FIG. 1B shows the entire surface of the button cap, which is in contact with the lower surface of the button cap and illuminates almost the entire area of the button cap, and the outer surface of the local illuminator 2-1 which locally illuminates the button cap. A molded cover 4 made of a flexible thin material having elasticity so as to entirely cover the button cap, and a raised portion 42 at a position corresponding to the projection of the button cap and a position corresponding to the entire surface illuminating element. Light guide hole 4
It has a bright globe 4-1 and a protruding light guide glob 4-2 corresponding to the local illuminating element, and has a total thickness of about 1.0 mm in actual size.

Next, FIG. 2C shows the projection of the button cap on the luminous body supporting plate 3 in which the spacer 6 is sandwiched between a pair of printed circuit boards 31 each having a thin conductive line laid on one side, and each illuminating element is attached and fixed. An inverted portion 7 is provided at a position corresponding to the raised portion 54 of the molded cover 4 and a conductive contact piece 8 serving as an electrical contact brazed on a thin conductive line on the opposite inner surface of the inverted portion. doing. The luminous body support plate is made of a highly flexible plastic having an actual size and a thickness of 0.7 mm.

In order to mount each of the above components, first, the luminous body support plate 3 is fixed inside the outer case (not shown) of the handset, and a flexible thin molded cover is laid thereon, and furthermore, The button cap 5 may be held until the upper surface of the flange 53 comes into contact with the button opening serving as a frame formed in the outer case until the upper surface of the flange 53 comes into contact with the button cap.

FIG. 2 is a top view of the button cap 5 of FIG. 1. For example, terms used for functions, operations, modes, and the like of a telephone and a transceiver, for example, when used as a button switch for "powering" a transmitter, The character (or code, symbol) of "power supply" is printed on the outer surface, and when this button is pressed, the full-surface illuminating element on the illuminant support plate is driven by a short circuit of the conductive contact portion, thereby causing the drive shown in FIG. The power switch of the circuit 10 is turned on and turned on, for example, turns on blue, and almost the entire area of the button cap is illuminated, and the detection signal S2 that detects that the power is actually turned on to the transmitter is used as shown in FIG. The drive circuit 11 is operated intermittently, and the local illuminating element can be selectively used so as to illuminate the outer end of the local embedding space 51 of the button cap by flashing red with a time limit. .

In the above case, one button switch is illuminated at two places. However, in practice, the illuminating elements on the illuminant support plate are arranged in a matrix.
In response to this, a molded cover may be prepared so that at least a plurality of sets of illuminating elements can be locally illuminated at a plurality of locations within one button cap.

The driving circuit shown in FIG. 3 is not limited to the above-described case, but can be configured to be able to respond to any state by setting the conditions of an optional illumination operation mode. What is necessary is just to collect | reduce to a dimension and to accommodate in an exterior case.

[0012]

As described above, according to the present invention, one switch button can be formed to be extremely thin so as to illuminate almost the entire area and a plurality of local areas, and only the minimum necessary number of switch buttons is provided as a whole. Multi-function display of transmission information such as function, operation, mode, etc. can be illuminated with different colors, and it is possible to emit light that satisfies demands of small size and light weight without impairing appearance, design, operability even in narrow areas An operation button switch device can be obtained.

[Brief description of the drawings]

FIG. 1 is an exploded vertical sectional view of a light emitting display operation button switch device of the present invention, wherein (A) shows a button cap, (B) shows a molded cover, and (C) shows a light emitting body support plate.

FIG. 2 is a top view of the button cap of FIG. 1;

FIG. 3 is a connection diagram illustrating an example of a driving circuit of each lighting element.

[Explanation of symbols]

 1-1 Overall Lighting Element 2-1 Local Lighting Element 3 Light Emitting Body Supporting Board 31 Printed Circuit Board 4 Molded Cover 4-1 Globe (for Full Lighting Element) 4-2 Projected Light Guide Glove 41 Light Guide Hole 42 Ridge 5 Button Cap Reference Signs List 51 embedded space 52 antiglare layer 53 flange 54 projection 6 spacer 7 inversion section 8 conductive contact section 10, 11 switching circuit (1), (2) 13 power switch 14 battery 20 driver

Claims (1)

(57) [Scope of request for utility model registration] 1. A light-emitting display operation button switch device in which light emitted from a light source is guided to a light-emitting surface via a light guide path, and a light-emitting element that illuminates substantially the entire surface of the button cap and a light-emitting element that locally illuminates. A light-emitting body support plate mounted on a wiring board having elements each connected to a separate driving circuit having a different lighting operation mode and having an inversion portion for conducting a conductive contact portion when the button cap is pushed in; A light-guiding aperture glove that covers the entire surface in close contact with the light-emitting surface of the element, a protruding light-guiding glove that covers the light-emitting surface of the local light-emitting element, and a raised part that applies a downward pressing force when the button cap is pressed are elastically flexible. A molded cover provided in a thin material, and at least an almost entire area illuminated by the light emitted from the overall illuminating element and a different area from the local illuminating element A local area illuminated by the emitted light of the color is integrally included, has a space in which the protruding light guide glove of the molded cover is embedded, and has a shield for blocking scattered light on a contact surface with the molded cover. A button cap made of translucent material that becomes an operation button with a projection in the phantom layer and the central part can be positioned and held by the frame, and a single operation button cap emits light with different colors corresponding to different information A light emitting display operation button switch device for displaying.