KR20130007240A - Mobile terminal - Google Patents

Mobile terminal Download PDF

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Publication number
KR20130007240A
KR20130007240A KR1020110064693A KR20110064693A KR20130007240A KR 20130007240 A KR20130007240 A KR 20130007240A KR 1020110064693 A KR1020110064693 A KR 1020110064693A KR 20110064693 A KR20110064693 A KR 20110064693A KR 20130007240 A KR20130007240 A KR 20130007240A
Authority
KR
South Korea
Prior art keywords
keypad
unit
mobile terminal
pressurized
light
Prior art date
Application number
KR1020110064693A
Other languages
Korean (ko)
Inventor
안택모
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020110064693A priority Critical patent/KR20130007240A/en
Publication of KR20130007240A publication Critical patent/KR20130007240A/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/704—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by the layers, e.g. by their material or structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Push-Button Switches (AREA)

Abstract

PURPOSE: A mobile terminal is provided to enlarge a print area of a unit key and to improve the visibility of a character or a number. CONSTITUTION: A keypad rubber part is arranged in the top of a substrate. The keypad rubber part includes a plurality of unit keypad rubber parts. A plurality of unit keypad rubber parts transfers a pressing operation to a dome type switch. A keypad frame(340) supports the keypad rubber part. A key top part(350) is arranged in the top of the keypad frame. A character or a number is formed in light transmitting material.

Description

[0001] MOBILE TERMINAL [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal, and more particularly, to a mobile terminal capable of extending a printing area of a unit key in which numbers or letters are displayed.

The terminal can move And may be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal. In particular, in the case of a terminal having a keypad assembly, as the demand level of the terminal increases from the youth to the elderly, there has been a need to secure a wide print area in which numbers or letters are displayed on a unit key through which a user inputs an input signal.

1 is a schematic exploded perspective view of a keypad assembly according to the prior art, and FIG. 2 is a schematic cross-sectional view of the keypad assembly according to the prior art.

As shown in Figure 1 and 2, the keypad assembly according to the prior art, the keypad rubber portion 30 for transmitting the pressing motion to the substrate, the keypad frame 40 for supporting the keypad rubber portion, the keypad frame 40 It is attached to the upper portion of the key top portion 50 directly contacting the user. The keypad rubber part 30 included in the keypad assembly according to the related art has a unit keypad rubber 33 corresponding to each unit key 51 of the key top part 50. The unit keypad rubber 33 includes a light blocking film 38 in a predetermined area B of the edge so that light from the LED module of the substrate is not emitted through the edge portion. The light blocking film 38 has a unit keypad. In consideration of the molding tolerance during molding of the rubber 33, the rubber 33 is formed to have a length longer than necessary to prevent light emission. In this way, since the light shielding film is provided in each unit keypad rubber portion beyond the required length (see B shown in FIG. 2), the light emitting region A of the unit keypad rubber portion is actually reduced, and as a result, an upper portion of the light emitting region is provided. There has been a problem in that the printing area of the unit key 51 located at is reduced. As a result, the size of the numbers or characters displayed on the unit key 51 is limited due to the reduction of the print area, and thus, the problem of lowering the visibility of the numbers or characters displayed on the unit key is reduced. Has existed.

It is therefore an object of the present invention to provide a mobile terminal which solves the problems of the prior art.

Specifically, an object of the present invention is to provide a mobile terminal that can enlarge the printing area of the unit key.

Mobile terminal according to an embodiment of the present invention for realizing the above object is a mobile terminal having a plurality of unit keys for receiving a user's input signal by pressing operation, a plurality of dome type at a position corresponding to the unit key A substrate comprising a switch and a plurality of light emitting modules; A keypad rubber part disposed on the substrate, the keypad rubber part including a plurality of unit keypad rubbers for transmitting a pressing operation through the unit keys to the dome-type switch; A keypad frame accommodating and supporting the keypad rubber part; And a key top part disposed on the keypad frame, wherein a number or letter for a user input is formed of a light-transmissive material, wherein the keypad rubber part is integrally formed with at least two adjacent unit keypad rubbers. The mobile terminal, characterized in that it comprises a plurality of keypad blocks.

According to the problem solving means of the present invention, the present invention can enlarge the printing area of the unit key. As a result, the present invention can improve the visibility of the numbers or letters displayed on the unit key, and as a result, it is possible to provide ease of use to the middle-aged or elderly people with reduced vision.

1 is a schematic exploded perspective view of a keypad assembly according to the prior art.
2 is a schematic cross-sectional view of a keypad assembly according to the prior art.
3 is a schematic perspective view of a mobile terminal having a keypad assembly according to the present invention.
4 is a schematic exploded perspective view of a keypad assembly according to the present invention.
5 is a schematic cross-sectional view of a keypad assembly according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. The same reference numerals in the drawings denote like elements throughout the drawings.

For reference, in the drawings and the following description, only the clamshell terminal is described, but this is an example, and any terminal having a keypad assembly may be used. For example, a bar type terminal or a flip type terminal may be used. It may be.

3 is a schematic perspective view of a mobile terminal having a keypad assembly according to the present invention.

As shown in FIG. 3, the mobile terminal 1000 includes a terminal main body 100 accommodating a printed circuit board 310 including a control unit, and a keypad installed at the terminal main body 100 to receive a user input signal. The assembly 300 includes a folder unit 200 connected to the terminal body 100 in a hinged manner, and a display unit 400 installed in the folder unit 200 to provide visual information to a user.

The keypad assembly 300 includes a plurality of unit keys 351 for receiving an input signal of a user by pressing. That is, the user visually checks the numbers or letters displayed on the unit key 351, and then inputs an input signal by pressing the unit key 351 according to information desired by the user (for example, a phone number or text). do.

The keypad assembly 300 includes an LED module 313 under the unit key 351 so that the user can easily recognize and identify the numbers or letters displayed on the unit key 351 with the naked eye. Emits light. Therefore, in order to improve the visibility of the numbers or letters displayed on the unit key 351, it is necessary to increase the print area 353 and the light emitting area of the numbers or letters.

Hereinafter, a keypad assembly according to the present invention which can increase the printing area 353 and the light emitting area of a number or letter will be described in detail.

4 is a schematic exploded perspective view of a keypad assembly according to the present invention.

As shown in FIG. 4, the keypad assembly includes a substrate 310 including a plurality of domed switches 311 and a plurality of light emitting modules at positions corresponding to the unit keys 351; A keypad rubber unit 330 disposed on the substrate 310 and including a plurality of unit keypad rubbers 333 for transmitting a pressing operation through the unit keys 351 to the dome-shaped switch 311; A keypad frame 340 for receiving and supporting the keypad rubber part 330; And a key top part 350 disposed on the keypad frame 340 and having a number or letter for a user's input formed of a light transmissive material.

The substrate 310 may include a dome switch 311 provided corresponding to each unit key 351, a contact positioned under the dome switch 311, and contacted with the dome switch 311 by a user's pressing operation. The LED module 313 is provided near the dome-shaped switch 311 and emits light toward the unit key 351 of the key top unit 350.

The keypad rubber part 330 is disposed on the substrate 310 and includes a plurality of keypad blocks 331. The keypad block 331 is formed by integrally combining at least two unit keypad rubbers 333 corresponding to the unit keys 351 of the key top unit 350. For example, as shown in FIG. 4, the keypad block 331 has a shape in which two unit keypad rubbers 333 are integrally coupled to each other.

As such, the keypad block 331 is formed by integrally combining two or more unit keypad rubbers 333, so that the light blocking film 336 provided at both edges of each unit keypad rubber 333 is the keypad block 331. The area occupied in the can be reduced, so that the area of the light emitting area A of the keypad block 331 can be enlarged. As a result, the printing area 353 and the light emitting area of the key top part 350 corresponding to the light emitting area A of the keypad block 331 can be enlarged, so that the number or letters displayed on the key top part 350 can be enlarged. Since the size can be expanded than the keypad assembly 300 according to the related art, the visibility of the numbers or letters displayed on the unit key 351 of the key top unit 350 can be improved.

In addition, the keypad block 331 includes a locking step (337) on the rim, the locking step (337) is supported and fixed to the keypad frame (340).

Preferably, the keypad rubber part 330 may be made of a light transmissive material so that light emitted from the LED module 313 may be emitted through the unit key 351 of the key top part 350.

In addition, the keypad block 331 is provided with a pressing protrusion 333b for transmitting the user's pressing operation to the dome-shaped switch 311 of the substrate 310. The pressure protrusion 333b is formed at a position corresponding to the unit value at the bottom of the keypad block 331.

The keypad frame 340 includes a plurality of accommodating parts 341 accommodating the keypad block 331 so that the keypad block 331 protrudes a predetermined height when combined. The accommodating part 341 has a shape and a size capable of accommodating at least two or more unit keypad rubbers 333 like the keypad block 331. For example, as illustrated in FIG. 4, when the keypad block 331 is formed by combining two unit keypad rubbers 333, the accommodation part 341 may also accommodate the two keypad rubbers at the same time. Has size and shape.

The portion of the keypad frame 340 forming the edge of the accommodation portion 341 supports the latching jaw 337 of the keypad block 331 from the top to the bottom to fix the keypad block 331.

The keypad frame 340 is composed entirely of plastic, for example, PC (polycarbonate).

The key top unit 350 includes a plurality of unit keys 351, and the unit key 351 is provided with a print area 353 in which numbers or letters are displayed. The print area 353 may be formed of a light transmissive material so that the light emitted from the LED module 313 of the substrate 310 is emitted to the outside, and thus the print area 353 also serves as a light emitting area. The key top portion 350 is composed of a plastic (for example, polycarbonate (PC)) film or sheet as a whole, it is fixed to the upper surface of the keypad frame 340 and the keypad rubber portion 330.

5 is a schematic cross-sectional view of a keypad assembly according to the present invention.

As shown in FIG. 5, the keypad assembly includes a plurality of unit keys 351 and a key top portion 350 positioned at the outermost (or top) portion and a keypad rubber positioned under the key top portion 350. The keypad frame 340 for fixing the unit 330, located at the bottom of the keypad frame 340, and transmits the pressing movement for the user input from the unit key 351 to the dome-shaped switch 311 of the substrate 310 The keypad rubber unit 330 is included.

As shown in FIG. 5, the keypad rubber unit 330 is composed of a plurality of keypad blocks 331 formed by integrally combining two unit keypad rubbers 333.

The key block block is formed so as to protrude a predetermined height when coupled to the keypad frame 340, the number of the pressurized portion 333a corresponding to the number of unit keypad rubber 333 formed integrally, and the keypad block 331 A locking projection 337 formed at a position lower than the pressing portion 333a at a rim, and a pressure protrusion 333b formed at a lower portion of the pressing portion 333a to transmit a user's pressing operation to the dome switch. ).

The pressurized portion 333a is formed to protrude a predetermined height when accommodated in the receiving portion 341 of the keypad frame 340. The pressurized part 333a is formed by a number corresponding to the number of unit keypad rubbers 333 coupled to the unit key 351 or the keypad block 331, and the unit keys 351 of the key top unit 350 are formed. This is the part that receives the user's pressing movement. The pressing motion applied to the pressurized part 333a depresses the pressing protrusion downward to deform the dome switch 311 of the substrate 310.

The locking jaw 337 is formed at a position lower than the pressing portion 333a by a predetermined height and at a position higher than the end of the pressing projection. The locking jaw 337 is positioned so that the keypad frame 340 is pressed from the top to the downward direction to fix the keypad block 331 to the keypad frame 340. Preferably, the locking jaw 337 and the keypad frame 340 in contact with the locking jaw 337 may be bonded with an adhesive resin.

As shown in FIG. 5, the keypad block 331 is provided from the upper surface of the locking jaw 337 to a predetermined length B of the upper surface of the pressing part 333a extending to the locking jaw 337. The light blocking film 336 is further included. The light blocking film 336 prevents light from the LED module 313 of the substrate 310 from being emitted outside the print area 353 and the light emitting area of the key top part 350, which is the key top part 350. This is because when the light is emitted outside the print area 353 and the light emitting area of the C), it may cause a glare to the user, thereby impairing the readability and visibility of the numbers or letters displayed on the unit key 351.

Since the to-be-pressed portion 333a is made of a light-transmitting material, the area between the light-shielding film 336 and the light-shielding film 336 of the upper surface of the pressure-sensitive portion 333a is formed of the LED module 313 of the substrate 310. A light emitting area A through which light is emitted is formed. In the keypad assembly according to the related art, a light shielding film is provided to each unit keypad rubber 333 up to a predetermined length of both edges of the upper surface, so that the light emitting area of the pressurized portion 333a is narrow, but the keypad assembly according to the present invention is provided. For example, as shown in FIG. 5, since the light blocking film is provided only up to a predetermined length B of both edges of the upper surface of the keypad block 331 to which the two unit keypad rubbers 333 are coupled, In 333a, the distance between the light blocking film and the light blocking film is increased to enlarge the light emitting area. That is, in the case of the keypad assembly according to the prior art, the light shielding films of both edges of the upper surface of the unit keypad rubber 333 provided in the two unit keypad rubber 333 is formed in four places, the unit keypad in accordance with the present invention Since the light blocking films of both edges of the upper surface of the rubber 333 are formed only in two places, the area of the light emitting area of the pressurized portion 333a or the keypad block 331 may be increased.

Preferably, the keypad block 331 has a groove 335 and a light blocking film 334 having a predetermined width formed on the boundary between the pressurized part 333a and the pressurized part 333a in the keypad block 331. This may be further provided. This is to partition the unit keypad rubber 333 to correspond to the unit key 351 of the key top unit 350 in the keypad block 331 in which the unit keypad rubber 333 is coupled to the plurality of unit keypad rubbers 333. In order to prevent light from being emitted from the boundary between the unit key 351 and the unit key 351 of FIG. 2, the visibility and readability of the number or letter displayed on the unit key 351 is further improved.

In this case, a predetermined width of the light blocking film 334 provided at the boundary between the pressurized part 333a and the pressurized part 333a is an upper portion of the pressurized part 333a extending to the locking step 337. It is smaller than a predetermined length of the light blocking film 336 provided to a predetermined length of the surface. Therefore, even if a light shielding film having a predetermined width is provided at a boundary between the press unit 333a and the press unit 333a, the light emitting area can be further enlarged as compared with the keypad assembly according to the prior art.

As described above, the present invention can enlarge the printing area of the unit key. For this reason, the present invention can greatly display the size of the numbers or letters displayed on the unit key, thereby improving the visibility of the numbers or letters displayed on the unit key. The result can be ease of use for middle-aged or elderly consumers with low vision.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention will be.

Terminal body: 100 folder: 200
Keypad Assembly: 300 Board: 310
Keypad rubber part: 330 Keypad block: 331
Keypad Frame: 340 Key Top: 350
Display unit: 400

Claims (8)

A mobile terminal having a plurality of unit keys for receiving an input signal of a user by a pressing operation,
A substrate including a plurality of dome switches and a plurality of light emitting modules at positions corresponding to the unit keys;
A keypad rubber part disposed on the substrate, the keypad rubber part including a plurality of unit keypad rubbers for transmitting a pressing operation through the unit keys to the dome-type switch;
A keypad frame accommodating and supporting the keypad rubber part; And
And a key top part disposed on the keypad frame and having a number or letter for user input formed of a light transmissive material.
The keypad rubber unit includes a plurality of keypad blocks in which at least two adjacent unit keypad rubbers are integrally formed. The method of claim 1,
The keypad block is formed so as to protrude a predetermined height when coupled to the keypad frame, the number of the number of the pressurized portion corresponding to the number of unit keypad rubber formed integrally, and a predetermined height lower than the pressurized portion at the edge of the keypad block Mobile terminal, characterized in that it comprises a locking jaw formed in. The method of claim 2,
The keypad block, the mobile terminal, characterized in that it comprises a light shielding film provided up to a predetermined length of the upper surface of the pressing portion extending from the upper surface of the locking jaw to the locking jaw. The method of claim 3,
The pressurized part includes a light emitting area formed between the light blocking film and the light blocking film. The method of claim 2,
And a light blocking film having a predetermined width is provided at a boundary between the pressurized part and the pressurized part. The method of claim 2,
A predetermined width of the light blocking film provided at the boundary between the pressurized part and the pressurized part is smaller than a predetermined length of the light shielding film provided up to a predetermined length of an upper surface of the pressurized part extending on the locking jaw. Mobile terminal. The method of claim 2,
A mobile terminal, characterized in that the lower portion of the pressurized portion is provided with a pressing projection for transmitting the user's pressing operation to the dome-shaped switch. The method of claim 1,
The keypad frame has a mobile terminal, characterized in that it comprises a receiving portion for receiving the keypad block.
KR1020110064693A 2011-06-30 2011-06-30 Mobile terminal KR20130007240A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110064693A KR20130007240A (en) 2011-06-30 2011-06-30 Mobile terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110064693A KR20130007240A (en) 2011-06-30 2011-06-30 Mobile terminal

Publications (1)

Publication Number Publication Date
KR20130007240A true KR20130007240A (en) 2013-01-18

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KR1020110064693A KR20130007240A (en) 2011-06-30 2011-06-30 Mobile terminal

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220050713A (en) 2020-10-16 2022-04-25 김건우 Automatic feed system for feed loss calculation based on input quantity and injection quantity measurement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220050713A (en) 2020-10-16 2022-04-25 김건우 Automatic feed system for feed loss calculation based on input quantity and injection quantity measurement

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