JPH048556Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to an improvement of a display device for in-vehicle audio equipment, etc.

(b) Prior Art A conventional display device for a car audio device such as a car stereo 10 shown in FIG. 4 has a plurality of push buttons 6a arranged in parallel on the display member 8 shown in FIG. In addition to a character display 8c which displays the following in characters, an operation display 8b is provided which indicates by means of a light emitting element (e.g. a light emitting diode) that each push button is being pressed and is operating or is performing its function.

(c) Problems to be solved by the invention However, in the conventional device described above, since the character display 8c and the operation display 8b are close to each other, the light that is guided by a light guide plate (not shown) and illuminates the character display 8c. The light emitted from the light emitting diode (not shown) may illuminate the operation display 8b, or conversely, the light from the light emitting diode may illuminate the character display 8c. Therefore, there is a problem in that the user cannot correctly distinguish between the two lights and misidentifies them. The present invention solves the above problems and facilitates the preparation process.

(d) Means for solving the problem The light-emitting element is supported with a light-shielding sheet interposed between the first support member and the second support member made of resin, and the light-emitting element body is made to protrude beyond the tip of the main body with the light-shielding sheet. The first support member and the second support member are then inserted into the opening of the display member.

(E) Effect Since the light-emitting element main body is covered with a light-shielding sheet, the light from the character display will not leak and be irradiated onto the light-emitting element main body, and conversely, the light from the light-emitting element will not leak and illuminate the character display.

(f) Examples The present invention will be explained below with reference to FIGS. 1 to 3. FIG. 1 is an exploded perspective view of a car stereo display device according to an embodiment of the present invention. 1 is a board, which includes a pair of engagement holes 1a, a positioning hole 1b, a terminal insertion hole 1c,
Perforations 1d and cutting grooves 1e and 1f are provided,
A conductive portion (not shown) is provided on the back surface.

Reference numeral 2 denotes a first support member made of resin, and a pair of protrusions (not shown) are provided on the back surface facing the substrate at positions corresponding to the positioning holes 1b of the substrate 1, and a number of guide portions are provided at predetermined intervals. It has 2e. Guide section 2e
is formed in a U-shape or an L-shape, and has a width sufficient for insertion of a push button, which will be described later. Reference numeral 2a denotes an engaging claw, which is provided at a position corresponding to the engaging hole 1a of the substrate 1.

Further, in the first support member 2, terminal introduction holes 2c are arranged in parallel on the mounting part 2i adjacent to the prismatic convex part 2b and corresponding to the guide part 2e. Further, a pair of protrusions 2g are provided on the surface, and an engagement hole 2d is provided adjacent to the prismatic convex portion 2b.

3 is a light emitting diode that emits green light, for example.
It has a main body 3a and a terminal 3b. Reference numeral 4 denotes a light-shielding sheet, which is black and has a thickness of about 0.1 to 0.2 mm, and has positioning holes 4a at positions corresponding to the protrusions 2g on the surface of the first support member. A covering portion 4b is provided corresponding to the cutout portion 4c. The covering portion 4b is formed to be slightly long so as to completely cover the tip 3c of the light emitting diode main body.

Reference numeral 5 denotes a second support member made of resin, and an engagement claw 5a is provided at a position corresponding to the engagement hole 2d of the first support member 2 on the back side.
is provided. Further, a U-shaped or L-shaped first lid portion 5b is provided, and a recess 5e for accommodating the light emitting diode 3 thereunder, and an L-shaped second lid for covering the terminal 3b of the light emitting diode 3. A portion 5c is provided corresponding to the light emitting diode 3. Further, a pair of positioning holes 5d are provided at positions corresponding to the positioning holes 4a of the light shielding sheet 4.

The assembly of the display device of the present invention will be explained below.
The terminal 3b of the light emitting diode 3 is bent in advance into an L-shape at a predetermined location so that the main body 3a is placed on the top surface _2e1 of the guide portion 2e of the first support member 2, and the prismatic convex portion 2b is placed on the mounting portion 2i. The terminal 3b is placed,
The tip of the bent terminal 3b is introduced into the terminal introduction hole 2c. As a result, the tip 3c of the light emitting diode main body 3a substantially coincides with the guide end surface 2h.

Next, insert the light shielding sheet 4 into the positioning hole 4a in the first position.
It is placed on the light emitting diode 3 so that the protrusion 2g of the support member 2 is inserted through it. In this way, the covering portion 4b of the light shielding sheet 4 covers the top and side surfaces of the light emitting diode main body 3a, and protrudes from the leading end 3c of the light emitting diode main body and the guide end surface 2h of the first support member 2.

Further, a first
the second so that the protrusion 2g of the support member 2 is inserted
The engagement claw 5a of the support member 5 is engaged with the engagement hole 2d of the first support member 2. As a result, the light-emitting diode 3 is housed in the first lid part 5b of the second support member 5 via the light-shielding sheet 4, and the light-shielding sheet 4 is connected to the light-emitting diode main body 3a and the second support member 5 in a U-shape or an L-shape. Since it is held by the letter-shaped first lid portion 5b, it is shaped into a U-shape or an L-shape.

Further, the L-shaped bent terminal 3b of the light emitting diode 3 is held between the L-shaped second lid portion 5c and the surface of the first support member 2.

As explained above, the light emitting element 3 is supported between the first support member 2 and the second support member 5 via the light shielding sheet 4, and the first support member 2 and the second support member 5 are integrated and prepared. Processing is completed.

After that, insert the terminal of the push switch 7 into the board 1, insert the protrusion (not shown) provided on the back surface of the first support member 2 into the positioning hole 1b of the board 1, and insert the engaging claw 2a of the first support member 2. the engagement hole 1a of the substrate 1
and connects the terminal 3b of the light emitting diode 3 to the substrate 1.
into the terminal insertion hole 1c.

The back surface of the substrate 1 thus prepared is dip soldered to connect the terminals of the push switch and the terminals 3b of the light emitting diodes 3 to conductive parts (not shown) on the back surface of the substrate 1. Further, the diagonally shaded portion of the substrate 1 in FIG. 1 is cut away by the perforations 1d and the cutting grooves 1e and 1f. As a result, the substrate 1 is removed from below the elongated hole 2f provided in the first support member 2.

Next, as shown in FIG.
f and is guided to the head 7a of the bushing switch 7 attached to the board 1, and the mounting portion 6b is mounted on the head 7a of the bushing switch 7. In this way, the push button 6a of the pressing member 6 is slidably accommodated in the guide portion 2e of the first support member 2, and the push switch 7 is operated by pressing the push button 6a.

FIG. 2 is a perspective view of essential parts showing a state in which the above assembly is inserted into a display member of a car stereo. The display member 8 shown in FIG. 5 is provided with a through hole 8a for arranging a plurality of push buttons 6a in parallel, and the push button 6a is pressed at the top to indicate that the push button 6a is in operation or is performing a function. A display 8b and a character display 8c indicating the operation and function of the push button 6a are provided. The display member 8 consists of a display sheet 9 and a light guide plate 10 made of transparent resin, both of which are integrated by adhesive.

The display sheet 9 has through holes 9a and is printed on a transparent material to display translucent character displays 9c and operation displays 9b.
and other displays and a black light-shielding portion 9d.

The light guide plate 10 is provided with an opening 10a larger than the through hole 9a at a position corresponding to the through hole 9a of the display sheet, and a wide portion 10b of the opening 10a matches the guide portion 2e of the first support member 2. It is formed like this.

In the above assembly, the push button 6a is connected to the through hole 8 of the display member 8.
When assembled into the display member 8 so as to be inserted into the light-shielding sheet 4, the light-emitting diode 3 whose main body tip 3c is completely covered with the light-shielding sheet 4 is attached to the first support member 2 and the second support member accommodating the push button 6a. 5 and inserted into the opening 10a of the light guide plate 10 as shown in FIG. FIG. 3 is a sectional view showing the state after assembly.

The light-emitting diode main body 3a is covered with a light-shielding sheet 4 on its top and side surfaces, and the main body tip 3c has a covering portion 4b of the light-shielding sheet 4 that protrudes beyond the tip 3c.
completely covered. light emitting diode 3
When inserted into the opening 10a of the light guide plate 10, the tip 4d of the light shielding sheet 4 comes into contact with the back surface of the display sheet 9. Therefore, the light that is guided by the light guide plate 10 and illuminates the character display 8c is irradiated onto the main body 3a of the light emitting diode 3 and illuminates the operation display 8b.
Conversely, the light from the light emitting diode 3 does not illuminate the character display 8c. Therefore, the user will not be able to distinguish between the two and will not misidentify them, and problems such as erroneous operations due to misidentification will not occur.

(g) Effects of the invention As explained above, this invention allows the user to distinguish between the character display and the operation display light when using in-vehicle audio equipment, so there is no misunderstanding and prevents erroneous operation due to misunderstanding. can do. Further, the process (preparation process) for supporting the light emitting element via the light-shielding sheet between the first support member and the second support member is easy, and the workability is excellent as a whole.

Further, the first support member can guide the push button using the guide portion, and can also serve as a guide member for the push button.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an embodiment of the present invention, Fig. 2 is a perspective view of the main parts, Fig. 3 is a sectional view of the main parts, Fig. 4 is a perspective view of the car stereo, and Fig. 5 is a display member. FIG. DESCRIPTION OF SYMBOLS 1... Substrate, 2... First support member, 3... Light emitting diode, 4... Light shielding sheet, 5... Second support member, 8... Display member.

Claims (1)

[Claims for Utility Model Registration] A first board made of resin and provided with a guide part for a push button that operates a switch attached to the board and a switch attached to the board.
A support member, a second support member made of resin, a light shielding sheet, a light emitting element connected to the substrate, and a display member having an opening, the light from the light emitting element not leaking to other than predetermined areas. The light-emitting element body is coated with the light-shielding sheet so as to protrude beyond the tip of the body, and
The light emitting element is supported through the light shielding sheet between the first support member and the second support member, and is inserted into the opening of the display member together with the first support member and the second support member. A display device characterized by: