KR20110005567A - Apparatus of flat type keypad for small electronic device and manufacturing method thereof - Google Patents
Apparatus of flat type keypad for small electronic device and manufacturing method thereof Download PDFInfo
- Publication number
- KR20110005567A KR20110005567A KR1020090063191A KR20090063191A KR20110005567A KR 20110005567 A KR20110005567 A KR 20110005567A KR 1020090063191 A KR1020090063191 A KR 1020090063191A KR 20090063191 A KR20090063191 A KR 20090063191A KR 20110005567 A KR20110005567 A KR 20110005567A
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- KR
- South Korea
- Prior art keywords
- film
- dome
- assay
- array
- transparent
- Prior art date
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Classifications
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- 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
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
-
- 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
- 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
- H01H13/705—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 construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
-
- 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
- H01H13/83—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 characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
-
- 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
- H01H13/88—Processes specially adapted for manufacture of rectilinearly movable switches having a plurality of operating members associated with different sets of contacts, e.g. keyboards
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2229/00—Manufacturing
- H01H2229/024—Packing between substrate and membrane
- H01H2229/028—Adhesive
Landscapes
- Push-Button Switches (AREA)
Abstract
Description
The present invention relates to a keypad for inputting information or a control command to a small electronic device, and in particular, to reduce the manufacturing process, reduce the failure rate, and reduce the price while reducing the thickness of the keypad. It is about.
Recently, as electronic devices are cheaper and more demanded due to the development of parts production technology and mass production, many people own one or more high-performance electronic devices that many people want, and some electronic devices are always carried by preference. Such portable electronic devices include, for example, MP3s, electronic cameras, mobile phones for mobile communication, recorders, notebook computers, data terminals, and the like. Such an electronic device or electronic device is a keyboard or key pad (hereinafter, referred to as a 'keypad') for inputting on / off, selection, adjustment, control command (command), data, etc. for use. It is common to have
Due to the small size and light weight of electronic devices, the area or volume that a keypad can occupy is gradually decreasing. In particular, it is common to use a finger to input a command including data, so that each button constituting the keypad can be touched. A minimum area must be formed. That is, since the keypad has a small size and light weight, there is a limitation in reducing the occupied area, and thus development of the keypad is focused on reducing the thickness.
1 is a plan view of a keypad according to an example of a general mobile phone terminal.
Hereinafter, with reference to the accompanying drawings in detail, for example, a keypad for inputting a signal such as a call number, a message and a command to a mobile communication terminal is a button and a button that can be touched with a finger in a limited area is arranged to the maximum; Minimize between buttons and maximize button area.
Since it is a keypad of a communication terminal, characters for inputting text messages are printed together on 12 numeric buttons, and are further provided with ON, OFF and FUNCTION KEY. In addition, a navigation key NAVIGATION KEY, a function key for another purpose, and the like may be further added.
Fig. 2 is an explanatory diagram of the assembly order of the components of the keypad according to one example of the prior art.
Hereinafter, with reference to the accompanying drawings, the button array (BUTTON ARRAY) 10, the first
The
FIG. 3 is an explanatory view of an assembly procedure of a semi-assembled assay component of a keypad component according to an example of the prior art.
Hereinafter, described in detail with reference to the accompanying drawings, the button assay (BUTTON ASSEY) (A) is attached to one surface of the first
The dome assay (B) is a flat double-sided
The PCB assay C is a configuration in which the LED 60 is fixed and electrically connected to a designated position of the
The keypad structure according to the prior art of such a configuration has a number of components that require a lot of manufacturing time, high price, high weight, bulky, high failure rate and difficult management.
Therefore, it is necessary to develop a technology to reduce the number of components of the keypad to reduce the weight and volume, to reduce the occurrence of defects and to reduce the price in order to increase the life and reliability of the product, suitable for electronic devices developed in the miniaturization trend.
The present invention is to solve the problems and necessity of the prior art as described above, in particular, since the number of components of the keypad is reduced, reducing the overall weight and volume, the integrated keypad of the small electronic device suitable for the miniaturization of the electronic device and its manufacturing method The purpose is to provide.
In addition, the purpose of the present invention is to provide an integrated keypad of a small electronic device and a method of manufacturing the same, which extend the lifespan by reducing the number of component parts of the keypad and reduce the occurrence of failure, thereby extending the lifespan by increasing the error factor of driving. to be.
It is also an object of the present invention to provide an integrated keypad of a small electronic device and a method of manufacturing the same, which reduce the number of components of the keypad to facilitate management and to lower the price, thereby activating diffusion.
The present invention devised in order to achieve the above object is made of any one selected from hardened plastics, metals and button arrays arranged by sorting the plate shape, each of which is selected by selecting one or more of numbers, letters, symbols differently, A button assay comprising a rubber pad formed by bonding a button array to one side and having a transparent and double-sided adhesive film, and a rubber pad formed by forming a protrusion on one side of the adhesive film, which is transparent and elastic, and formed on a side of the adhesive film. The coated, transparent, double-sided adhesive first light guide film, the dome array bonded to one side of the first light guide film, the dome array having an elastic and conductive hemispherical shape, and forming a hole at the position of the dome array; Formed by contacting the dome of the dome array and the dome array consisting of a transparent second light guide film coated with a material An integrated keypad of a small electronic device is provided, which includes a PCB assay for operating an LED in a predetermined switch pattern and fixing an LED that emits light by supply of an operating power source.
Preferably, the dome assay forms a hole in which the LED is inserted by selection in the first light guide film, forms a hole in which the LED is inserted in the second light guide film, and applies a light guide material to the adhesive film by selection. , The light guide material is not applied to any one selected from the first light guide film and the second light guide film.
The present invention devised to achieve the above object is made of any one selected from hardened plastics, metals, and any one or more of numbers, letters, and symbols are formed in a semi-transparent state by differently distinguishing and displaying a plate form. Adhesively arranged semi-transparent button array, translucent button array on one side, transparent and double-sided adhesive on first side, adhesive on the other side of the first adhesive film, transparent, elastic and light guide material mixed to protrude on one side A button assembly comprising a light guide rubber pad molded in a state of forming a doped array, and a domed array in which a semi-adhesive second adhesive film is bonded to one side of the second adhesive film, and the hemispherical shape of which is elastic and conductive is aligned; A dome assay formed of a third adhesive film having a hole formed at a position of the dome array and being double-sided and transparent; and The present invention provides an integrated keypad of a small electronic device including a PCB assay for operating a predetermined switch pattern formed in contact with a dome of a dome array and fixing an LED emitting light by supply of operating power.
Preferably, the semi-transparent button array of the button assay is formed to include a light guide material selectively in a translucent state, the second adhesive film to form a hole in which the LED is inserted, the third adhesive film, the LED Is made of a configuration to form a hole is inserted.
In addition, the light guide material is applied to any one or more selected from the second adhesive film and the third adhesive film.
The present invention devised to achieve the above object is made of any one selected from hardened plastics, metals and sorted by distinguishing the plate form formed in a semi-transparent state by selecting any one or more of numbers, letters, symbols differently One translucent button array, a translucent button array with a transparent, light guide material coated on one side, a transparent, light guide material coated on one side, a transparent, elastic, and formed by forming projections on one side A hole is formed at a position of a dome array and a dome array in which a button assembly made of a rubber pad, a transparent double-sided adhesive film and a hemispherical shape having elastic and conductive adhesion to one side of the first adhesive film are aligned. And double-sided adhesive and transparent dome assay consisting of a second adhesive film and in contact with the dome of the dome array By an operating switch in the ON state a predetermined pattern, and includes a PCB Assay for fixing the LED which emits light of a supply of the operating power supply presents the integrated keypad of the small electronic devices takes place.
Preferably, the semi-transparent button array of the button assay is formed in the translucent state optionally comprising a light guide material, the first adhesive film to form a hole in which the LED is inserted by selection, the second adhesive film LED is Forming a hole to be inserted, and consists of applying a light guide material to any one or more selected from the first adhesive film and the second adhesive film.
The button assay, the dome assay and the PCB assay are made by bonding in order.
The present invention devised to achieve the above object is made of any one selected from hardened plastics, metals and sorted by distinguishing the plate form formed in a semi-transparent state by selecting any one or more of numbers, letters, symbols differently A semi-transparent button array, a semi-transparent button array bonded to one side and transparent, a double-sided adhesive first film, adhered to the other side of the first film, forming a transparent, elastic, hemispherical recessed groove on one side Rubber pads formed by forming projections on one side and one side of the rubber pad grooves are formed, and the transparent and double-sided adhesive film is adhered by the second film to the grooves of the rubber pad, and has elasticity and conductivity. Keypad assay consisting of dome arrays arranged in hemispherical shape and predetermined switches formed in contact with the dome of the keypad assay To turn the operation in the on state comprises a PCB Assay for fixing the LED which emits light of a supply of the operating power supply presents the integrated keypad of the small electronic devices takes place.
Preferably, the rubber pad is made of any one selected from a mixture of light guide materials and a coating.
On the other hand, the rubber pad is formed in the center of the groove to form a support for supporting the dome of the dome array do not move itself, it is made of a configuration forming a space between the projection and the support.
The translucent state of the semi-transparent button array is composed of any one selected from a composition including a light guide material, an applied composition, and a configuration including or not applied.
In addition, the first film is made of any one selected from a mixture of light guide materials, and a coating and a non-light guide material.
Here, the second film is made of any one selected from a mixture of light guide materials, a coating, and a non-coating material.
The light guide material includes any one or more selected from phosphors and fluorescent materials.
In order to achieve the above object, the present invention provides a first process for selecting any one of a semi-transparent and an opaque button array in which one or more of numbers, letters and symbols are selected and displayed differently. A second process of preparing a transparent double-sided adhesive flat film and a hole-shaped film in which holes of a predetermined size are formed at predetermined intervals, and adhering the selected button array to the selected flat film, and the light guide, The button assay is completed by attaching the button array to a flat film, which is made of any one of the ones containing the material and the one applied or not, and a transparent elastic material and formed with projections at predetermined intervals. 3rd process to make, and select any one of the flat film And a fourth process of adhering the conductive hemispherical dome with a dome array arranged at predetermined intervals, and a fifth process of selecting any one of the hole films and adhering the dome array to complete the dome assay, and at predetermined intervals. And a seventh process of forming a switch pattern and preparing an LED fix to which the LED is fixed, and a seventh process of sequentially bonding a button assay, a dome assay, and a PCB assay. present.
Preferably, the hole of the hole-shaped film comprises a hole in which the dome is inserted and the LED is inserted, the plate-shaped film to form the hole by selection.
In order to achieve the above object, the present invention provides a first process for selecting any one of a semi-transparent and an opaque button array in which one or more of numbers, letters and symbols are selected and displayed differently. A second process of adhering with the selected button array, and using any one selected from a film including a coating and a transparent double-sided adhesive film; A third process of forming a hemispherical groove on one side at a predetermined interval and attaching the other flat surface of the rubber pad having protrusions to the first film at the center of the groove; The second peel is selected from one of the films and the transparent double-sided adhesive film. And a fourth step of completing a keypad assay by attaching a dome to each groove of the rubber pad and forming a switch pattern at predetermined intervals, and preparing a PCB assay in which the LED is fixed. A fifth step and a sixth step of sequentially bonding the keypad assay and the PCB assay; It proposes an integrated keypad manufacturing method of a small electronic device comprising a.
Preferably, the groove of the rubber pad forms a support portion at the inner edge of the hemispherical groove to form a space portion between the protrusions, and increases the flexibility of the groove by the space portion.
The present invention having the configuration as described above has a convenient effect in terms of reducing the number of components of the keypad to reduce the overall weight and volume to promote the miniaturization of electronic devices.
In addition, the present invention of the configuration as described above has the industrial use effect of increasing the production rate by increasing the number of components of the keypad to reduce the cause of failure to increase the reliability of the product at the same time to increase the preference.
On the other hand, the present invention of the configuration as described above has the industrial use effect of activating the distribution by reducing the number of components of the keypad is easy to manage and lower the price.
The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may properly define the concept of terms in order to best explain their invention in the best way possible. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention.
The keypad is a means for inputting control commands, operating parameters, data, programs, etc. into the electronics, and the weight, volume, and size are small, trouble-free, It requires production at a price. Therefore, the keypad according to the present invention relates to a technology that reduces the number of parts and reduces the number of parts while maintaining the function, while reducing the failure rate and production cost.
4 is a block diagram illustrating an integrated keypad of a small electronic device according to a first embodiment of the present invention.
Hereinafter, the first embodiment will be described in detail with reference to the accompanying drawings, which includes a
The
The
The
At this time, the portion of the
On the other hand, the LED 306, which is supplied with operating power by a circuit configuration not shown in the drawing, locally generates light only at the corresponding position, and the generated light is included in or applied to the first or second light guide films 202 and 204. The light guide material scatters widely at a constant brightness and outputs light between each button of the button array 102, thereby illuminating each button position of the button array 102. That is, the user easily checks the position of each button constituting the button array 102 and inputs corresponding commands, data, and the like.
5 is a block diagram illustrating an integrated keypad of a small electronic device according to a second embodiment of the present invention.
Hereinafter, the second embodiment will be described in detail with reference to the accompanying drawings, and includes a
The
The
The
On the other hand, the
6 is a block diagram illustrating an integrated keypad of a small electronic device according to a third embodiment of the present invention.
Hereinafter, the third embodiment will be described in detail with reference to the accompanying drawings, and includes a
The
The
The PCB assay 320 includes the
FIG. 7 is a diagram illustrating an integrated keypad structure of a small electronic device according to a fourth embodiment of the present invention, and FIG. 8 is an enlarged view of a portion of the rubber pad M of FIG. 7.
Hereinafter, the fourth embodiment will be described in detail with reference to the accompanying drawings, and includes a
The
The light
The structure of this dome is enlarged in detail in the accompanying FIG. 8. Referring to FIG. 8, the
When an external force is applied to the
Here, the state in which the
9 is a flowchart illustrating a method for manufacturing an integrated keypad of a small electronic device according to an embodiment of the present invention.
Hereinafter, a manufacturing method according to an embodiment will be described in detail with reference to the accompanying drawings, and any one of a translucent and opaque button array in which one or more of the numbers, letters, and symbols are selected and displayed differently is displayed. Select (S110).
Then, a transparent double-sided adhesive flat film and a hole-shaped film having holes of a predetermined size formed at predetermined intervals are prepared, and the selected button array is adhered to one side of the selected flat film. (S120).
At this time, the hole of the hole-type film includes a hole in which the dome is inserted and the hole in which the LED is inserted, the flat film is formed by selecting the hole.
On the other hand, it is made of any one of the one containing the light guide material and the one coated or not and transparent transparent material, and selected from among flat rubber pads formed with protrusions at predetermined intervals, thereby adhering the button array to a flat film adhered to the button array. Complete the essay (S130).
Select any one of the flat film and bond the dome array with elastic and conductive hemispherical domes arranged at predetermined intervals (S140), and select any one of the hole-shaped films and adhere the dome array to complete the dome assay In step S150, a switch pattern is formed at predetermined intervals and a PCB assay is prepared in which an LED is fixed (S160).
The button assay, the dome assay and the PCB assay prepared in this way are sequentially bonded through a double-sided adhesive film, thereby completing an integrated keypad of a small electronic device (S170).
10 is a flowchart of a method for manufacturing an integrated keypad of a small electronic device according to another embodiment of the present invention.
Hereinafter, a manufacturing method according to another exemplary embodiment will be described in detail with reference to the accompanying drawings, wherein any one or more of semi-transparent and opaque button arrays are selected and displayed differently from each other including numbers, letters, and symbols. Select (S210).
Then, any one selected from the one containing the light guide material and the one coated and not the transparent double-sided adhesive film is used as the first film and adhered to the selected button array (S220).
Meanwhile, the flat other side surface of the rubber pad including the light guide material and one coated or not, and a transparent elastic material, and having a hemispherical groove formed at a predetermined interval on one side, and having a protrusion formed at the center of the groove, the first Adhesive to the film (S230). At this time, the groove of the rubber pad is formed in the inner edge of the hemispherical groove to form a space between the projections, the structure is to increase the flexibility or elasticity of the groove by the space.
In addition, any one selected from a film containing a light guiding material and one applied or not, which is a transparent double-sided adhesive film, is used as a second film, and is bonded to a surface where a rubber pad groove is formed, and a dome is attached to each groove to complete a keypad assay. (S240), a switch pattern is formed at predetermined intervals, and a PCB assay is prepared in which the LED is fixed (S250).
Since the keypad assay and the PCB assay are sequentially bonded through the double-sided adhesive film, the integrated keypad of the small electronic device is completed (S260).
The technique of the present invention as described above provides an integrated keypad suitable for small electronic devices.
Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention, and such modifications and modifications belong to the appended claims.
1 is a plan view of a keypad according to an example of a general mobile phone terminal,
2 is an explanatory view of a component assembly procedure of the keypad according to one example of the prior art;
3 is an explanatory view of an assembly procedure of a semi-assembled assembly of keypad components according to an example of the prior art;
4 is a diagram illustrating an integrated keypad structure of a small electronic device according to a first embodiment of the present invention;
5 is a block diagram illustrating an integrated keypad of a small electronic device according to a second embodiment of the present invention;
6 is a block diagram showing an integrated keypad structure of a small electronic device according to a third embodiment of the present invention;
7 is a block diagram illustrating an integrated keypad of a small electronic device according to a fourth embodiment of the present invention;
FIG. 8 is an enlarged view of a rubber pad M part in FIG. 7; FIG.
9 is a flowchart of a method for manufacturing an integrated keypad of a small electronic device, according to an embodiment of the present invention;
And
10 is a flowchart of a method for manufacturing an integrated keypad of a small electronic device according to another embodiment of the present invention.
** Explanation of symbols on the main parts of the drawing **
100, 110, 120: button assay 102: button array
104:
112, 122, 401: Translucent Button Array
114, 222: First adhesive film 116: Light guide rubber pad
124:
202: first light guide film 204: second light guide film
206, 216, 226, 405: Dome array 212, 224: Second adhesive film
214: third
302, 312, 322, 332:
306, 316, 326, 336: LED 402: First film
404: second film 406: projection
407: support portion 408: space portion
Claims (19)
Priority Applications (1)
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KR1020090063191A KR20110005567A (en) | 2009-07-10 | 2009-07-10 | Apparatus of flat type keypad for small electronic device and manufacturing method thereof |
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Application Number | Priority Date | Filing Date | Title |
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KR1020090063191A KR20110005567A (en) | 2009-07-10 | 2009-07-10 | Apparatus of flat type keypad for small electronic device and manufacturing method thereof |
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Publication Number | Publication Date |
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KR20110005567A true KR20110005567A (en) | 2011-01-18 |
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KR1020090063191A KR20110005567A (en) | 2009-07-10 | 2009-07-10 | Apparatus of flat type keypad for small electronic device and manufacturing method thereof |
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2009
- 2009-07-10 KR KR1020090063191A patent/KR20110005567A/en active IP Right Grant
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