JPH0969867A - Portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent dusts, etc., from being stuck to the surface of glass and to excellently maintain a product by fitting a protective lens to an LCD display device to cover the lens from a front surface part to a side surface part and mounting the lens on the opening part of a body. SOLUTION: A protective lens 2 is fitted to an LCD display device 4 so as to be covered from a front surface part to a side surface part and the lens 2 is mounted on the opening part 1c of a casing. At this stage, the display device 4 is mounted in front of a printed wiring board 3 in a state that dusts, etc., are eliminated and next, the lens 2 is mounted on the front surface 4a of the frame of the display device 4. At this time, the leg part 2a of the lens 2 slides along the side surface of the frame 4b of the display device 4 and the fitting projection part 2b provided on the leg part 2a is fitted into the fitting hole 4d provided on the frame 4b of the display device 4. The lens 2 formed in this way is mounted on the opening part 1c from the inside of the front part 1a of the casing, the front part 1a of the casing and the back part of the casing are integrated and a portable telephone set is formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone, and more particularly to a mobile phone in which dust or the like does not enter and adheres to the glass surface or the like of an LCD display.

[0002]

2. Description of the Related Art A conventional mobile phone is designed so that dust inside the phone does not adhere to the glass surface of the LCD display.
For example, a cushion spacer is bonded between the housing supporting the protective lens and the LCD display to prevent dust and the like from entering.

[0003]

However, according to the portable telephone configured as described above, dust or the like is apt to adhere to the cushion space and the adhesive portion thereof during assembly, and therefore dust in the air is managed or adhered. The work of removing dust and the like is indispensable and time-consuming, and although it is possible to reduce the defective rate of the product, it is difficult to achieve perfection.

The present invention has been made in order to solve the above-mentioned problems, and prevents the dust from adhering to or invading the surface of the glass of the LCD display or the like so that the product can always be maintained in a good condition. Aim to get.

[0005]

A mobile phone according to the present invention is configured as follows. (1) The LCD display is installed on the front of the printed wiring board.
A mobile phone in which a protective lens is further provided in front of the CD display to constitute LCD display means, and the LCD display means is attached to the opening of the housing, the protective lens being used as the LCD display. The protective lens is attached to the opening of the housing by fitting the front lens and the side surface so as to cover them.

In this case, the protective lens is formed in a U-shaped cross section to provide a leg portion, a fitting protrusion portion is provided inside the leg portion, and the fitting protrusion portion is fitted to the side peripheral portion of the LCD display. You may provide the fitting hole which fits.

(2) In the mobile phone of the above (1), a sealing material is provided between the protective lens and the housing to prevent water and the like from entering the mobile phone. (3) In the mobile phone of (1) or (2) above, a light guide groove is provided on the side surface of the protective lens and a light emitting element is provided adjacent to the light guide groove, and the characters emitted from the light emitting element illuminate the characters on the LED display. It was made to be released.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. 1 is a front view of a first embodiment of the present invention, FIG. 2 is a side view showing a section AA in FIG. 1, and FIG. 3 is a plan view showing a section BB in FIG. 4 and 5 are enlarged cross-sectional views of the main part of FIG. Reference numeral 1 is a housing of a mobile phone, 1a is a front portion of the housing, and 1b.
Is a rear portion of the housing, and 1c is a substantially rectangular opening provided near the front upper portion of the front portion 1a of the housing. Reference numeral 2 denotes a protective lens attached to the opening 1c of the mobile phone and having a substantially U-shaped cross section. Reference numeral 2a denotes a leg portion provided along the peripheral edge of the protective lens 2 so as to project inwardly of the housing 1. 2b is leg 2a
Is a fitting protrusion that is located near the tip of the and protrudes inside. Reference numeral 2c is a printing frame provided along the vicinity of the peripheral portion of the front surface of the protective lens 2.

Reference numeral 3 denotes a printed wiring board disposed inside the housing 1, 4 is an LCD display located behind the protective lens 2 and attached to the front of the printed wiring board 3, and 4a is an LCD display 4
Is a glass surface portion located on the front surface of the. 4b is a frame of the LCD display 4, and 4c is a front surface of the frame. 4d is a fitting hole provided on the peripheral edge of the side surface of the frame 4b.
When the protective lens 2 is attached to the front surface of the D display unit 4, the fitting protrusion 2b of the protective lens 2 is fitted into the fitting hole 4c. Then, the printed wiring board 3, the LCD display 4, and the protective lens 2 constitute an LCD display means. A push button 9 is provided on the front surface of the housing 1 of the mobile phone and below the protective lens 2.

The operation of the present embodiment configured as described above will be described. First, the LCD display 4 is attached to the front surface of the printed wiring board 3 with dust and the like removed, and then the protective lens 2 is attached to the frame front surface 4c of the LCD display 4.
At this time, the leg 2a of the protection lens 2 slides along the side surface of the frame 4b of the LCD display 4, and the fitting protrusion 2b provided on the leg 2a is provided on the frame 4b of the LCD display 4. Fit into the fitting hole 4d. The protective lens 2 of the LCD display means thus formed is attached to the opening 1c from the inside of the housing front portion 1a, and the housing front portion 1a and the housing rear portion 1b are integrated to form a mobile phone.

Therefore, according to the first embodiment, the protective lens 2 is directly attached to the front surface 4 of the frame 4b of the LCD display 4.
Since the c is covered and the fitting protrusion 2b of the leg 2a of the protection lens 2 is fitted into the fitting hole 4d of the LCD display 4, dust and the like do not enter the inside, and dust countermeasures are completely taken. The conventional cushion spacer and adhesive section can be omitted. Further, since the skirt portion of the frame 4b contacts the printed wiring board 3, even if external force is applied to the protective lens 2, LC
Since no force is directly applied to the D display 4, it is not damaged.

Embodiment 2 FIG. 5 is a vertical cross-sectional view of the main part of the second embodiment of the present invention. In this embodiment, a waterproof structure or the like is added to the mobile phone shown in the first embodiment. 5 is the opening 1c
A groove portion provided along the back surface of the front portion 1a of the housing in the vicinity, 6
Is a sealing material such as an O-ring inserted in the groove 5, and the base of the leg 2a of the protective lens 2 is in contact with the sealing material 6 of the groove 5.

The operation of the embodiment constructed as described above will be described. The process of forming the LCD display means by the printed wiring board 3, the LCD display 4, and the protective lens 2 is the same as that described in the first embodiment, and thus the description thereof is omitted. Thus, while forming the LCD display means, the sealing material 6 is mounted in the groove portion 5, and the protective lens 2 of the LCD display means is provided from the inside of the front portion 1a of the housing to the opening portion 1c.
Then, the housing front part 1a and the housing back part 1b are integrated to form a mobile phone. As a result, the base portion of the leg portion 2a of the protective lens 2 is adhered and sealed with the sealing material 6 of the groove portion 5, so that water or the like can be introduced into the mobile phone through the gap between the protective lens 2 and the front portion 1a of the housing. Will never invade.
According to the second embodiment, the protective lens 2 and the housing front portion 1a
Since the sealing material 6 is provided between the above and the above, it is possible to obtain the waterproof effect and the like in addition to the effect shown in the first embodiment.

Embodiment 3 FIG. 6 is a vertical cross-sectional view of the essential parts of a third embodiment of the present invention. In this embodiment, a light emitting element is added to the mobile phone shown in the second embodiment (or the first embodiment). Reference numeral 7 is a light guide groove provided near the base of the leg portion 2a of the protective lens 2, and 8 is a light emitting element mounted in the vicinity of the light guide groove 7. Light emitted by the light emitting element 8 is guided by the light guide groove 7 Is transmitted through the front surface of the protective lens 2.

In the present embodiment configured as described above, the printed wiring boards 3 and L are arranged in the same manner as in the second embodiment.
An LCD display means is formed by the CD display 4 and the protective lens 2. At this time, the light emitting element 8 is attached in the vicinity of the light guide groove 7. In this way, while forming the LCD display means, the sealing material 6 is attached to the groove portion 5, and the protective lens 2 of the LCD display means is attached to the opening portion 1c from the inside of the front portion 1a of the housing and the front portion 1a of the housing. The housing rear portion 1b is integrated to form a mobile phone. According to the present embodiment, since the light emitting element 8 is provided, in addition to the effect shown in the second embodiment (first embodiment), the LCD display 4 is provided even when the LCD display 4 has no backlight. It can be read even in a dark place by illuminating the displayed characters.

[0016]

As is apparent from the above description, according to the present invention, the protective lens is fitted so as to cover the front surface portion and the side surface portion of the LCD display and is attached to the opening portion of the housing. It is possible to reliably prevent the intrusion of dust with a simple structure in which dust and the like do not enter.

Further, since the sealing material is provided between the protective lens and the housing, water or the like does not enter the mobile phone, and waterproofing can be performed completely. Further, since the light guide groove and the light emitting element are provided on the side surface of the protective lens and the light emitted from the light emitting element is used to illuminate the characters on the LED display, the characters displayed on the LCD display can be recognized sufficiently even in a dark place. be able to.

[Brief description of drawings]

FIG. 1 is a front view of a first embodiment of the present invention.

FIG. 2 is a side view showing a cross section taken along the line AA of FIG.

FIG. 3 is a plan view showing a cross section taken along the line BB of FIG.

FIG. 4 is an enlarged sectional view of a main part of FIG. 2;

FIG. 5 is a cross-sectional view of essential parts of a second embodiment of the present invention.

FIG. 6 is a cross-sectional view of essential parts of a third embodiment of the present invention.

[Explanation of symbols]

 1 Case 1c Opening 2 Protective Lens 2a Leg 2b Fitting Protrusion 3 Printed Wiring Board 4 LCD Display 4d Fitting Hole 6 Sealant 7 Light Guide Groove 8 Light Emitting Element

Claims (4)

[Claims] 1. An LCD display device is provided on the front surface of a printed wiring board, and a protective lens is further provided in front of the LCD display device to constitute an LCD display device means, and the LCD display device means is provided with an opening portion of a housing. The mobile phone mounted on the mobile phone, wherein the protection lens is fitted to the LCD display so as to cover the front surface portion to the side surface portion, and the protection lens is mounted in the opening portion of the housing. Telephone. 2. A protective lens is formed in a U-shaped cross section to provide a leg portion, a fitting protrusion is provided inside the leg portion, and L
The mobile phone according to claim 1, wherein a fitting hole into which the fitting protrusion is fitted is provided in a peripheral edge portion of a side surface of the CD display. 3. The mobile phone according to claim 1, further comprising a sealing material provided between the protective lens and the housing. 4. A light guide groove is provided on the side surface of the protective lens, and a light emitting element is provided in the vicinity of the light guide groove so that the light emitted from the light emitting element illuminates the characters of the LED display. The mobile phone according to claim 1, 2, or 3.