WO2006082973A1 - 薄型キーシート - Google Patents
薄型キーシート Download PDFInfo
- Publication number
- WO2006082973A1 WO2006082973A1 PCT/JP2006/302016 JP2006302016W WO2006082973A1 WO 2006082973 A1 WO2006082973 A1 WO 2006082973A1 JP 2006302016 W JP2006302016 W JP 2006302016W WO 2006082973 A1 WO2006082973 A1 WO 2006082973A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- key
- key top
- thin
- sheet
- keypad
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
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
- H01H13/7006—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 comprising a separate movable contact element for each switch site, all other elements being integrated in layers
-
- 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
- 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
-
- 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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2207/00—Connections
- H01H2207/012—Connections via underside of substrate
- H01H2207/014—Plated through holes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2209/00—Layers
- H01H2209/068—Properties of the membrane
- H01H2209/07—Properties of the membrane metallic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/002—Legends replaceable; adaptable
- H01H2219/018—Electroluminescent panel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/028—Printed information
- H01H2219/03—Printed information in transparent keyboard
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/002—Actuators integral with membrane
- H01H2221/006—Adhesive
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/07—Actuators transparent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/002—Layer thickness
- H01H2227/004—Membrane
Definitions
- the present invention relates to a technique for thinning a key sheet in which a plurality of keys as input means for handy and mopile equipment such as a mobile phone and a personal digital assistant (PDA) are arranged together. is there.
- PDA personal digital assistant
- a key sheet is a component that constitutes a handy mopile device such as a mobile phone or a personal digital assistant (PDA).
- Each of the key sheets includes a plurality of key tops that are push buttons such as alphabet and Z or numeric keys and function keys. They are arranged and bonded on a sheet surface called a keypad.
- the keypad is a flexible sheet having rubber properties such as silicone rubber and thermoplastic elastomer.
- the key sheet configured as described above has a printed circuit board having a plurality of normally open contacts closed by pressing the push button on the lower surface thereof to form a push button switch.
- a light source is also provided to illuminate the top with backside power.
- the key sheet is configured in such a manner that a plurality of components are layered in this manner, the thickness of each component is accumulated to a considerable thickness. Therefore, it is required to make the whole as thin as possible so as to further improve the portability of handy pile equipment.
- each component force to be overlapped has a conventional common sense structure, so there is a limit to further thinning in structure.
- the EL sheet is thinner than the LED, the key sheet is limited in thickness.
- the EL sheet is thinner than the LED (light emitting diode) that is conventionally used as a light source, but as a base sheet for forming an EL element in which electrodes and light emitting layers are laminated. Since two grease films are required as protective sheets, the thickness of the two grease sheets is added to the thinning, even though the thickness of the EL element itself is very thin. Limited (currently at least 0. About 2mm).
- Patent Document 1 Japanese Patent Laid-Open No. 2002-234757
- the limit was 1.5 to 1.6 mm.
- the light source (LED) for illuminating the key top from the back side is a three-dimensional structure having vertical, horizontal, and height dimensions, such as red beans, although it is small. That height hindered thinning.
- the thickness is limited to 0.6 mm in order to obtain the required strength. If an LED (light emitting diode) is used as the light source, it is necessary to prepare an LED storage section on the keypad. The storage section must be at least 0.6 mm thick, and it is necessary to secure a 0.3 mm working section to secure a key stroke, so the keypad should be 0.9 mm or less. Is impossible. In addition, when an EL sheet is used as the light source, the LED storage section is not necessary, but the entire keypad including the operation section needs to have a thickness of at least about 0.6 mm. The sheet thickness (0.2 mm or more) is added, and the thickness of the entire key sheet becomes 1.4 mm or more.
- the problem to be solved by the present invention is to reduce the thickness of the key unit as much as possible so as to further improve the portability of handy and mopile equipment.
- the challenge is to reduce the number of individual individual components stacked, and to limit the height of the light source for illuminating the key top from the back, which is one of the causes that prevented thinning. .
- the thickness is suppressed to about 0.6 mm, or the surface is covered with a resin film.
- a resin film When used as a film key or made of a metal plate such as SUS (stainless steel) The thickness is limited to 0.1 to 0.3 mm.
- a hole such as a letter is made by laser etching or chemical etching in order to be illuminated.
- a thin-film EL (electroluminescence) element that can significantly reduce the thickness (height) is used instead of a conventional three-dimensional light source such as an LED. And forming the thin-film EL element on the back surface of the key top by printing, thereby obtaining an EL-body thin key sheet configuration.
- the wiring to thin EL light sources will challenge further thinning by using metal thin film deposition methods such as vapor deposition and sputtering on the keypad.
- the limit of the thickness of the key unit according to the prior art was 1.5 mm to l. 6 mm, but by implementing the present invention, the limit is broken and the thickness is reduced to about 1. Omm. was able to
- the key sheet can be made thinner by the amount that the base film of the EL element is eliminated.
- the base film of the EL element can be eliminated, and the feel of the key sheet can be improved.
- FIG. 1 is a perspective view showing an overall view of a foldable thinned cellular phone provided with a thin key sheet according to the present invention.
- FIG. 2 is a perspective view showing an appearance of Example 1 of a thin key sheet according to the present invention.
- FIG. 3 is an exploded perspective view of Example 1 of a thin key sheet according to the present invention.
- FIG. 4 is an enlarged cross-sectional view showing the structure of a thin key sheet according to Embodiment 1 of the present invention.
- FIG. 5 is an enlarged perspective view showing the structure of a thin key sheet according to Embodiment 2 of the present invention.
- Fig. 6 is an enlarged cross-sectional view showing a structure of a thin key sheet according to Embodiment 3 of the present invention.
- FIG. 7 is an enlarged perspective view showing the structure of a fourth embodiment of the thin key sheet according to the present invention.
- the screen display part and the key top part are arranged on the same plane, and the whole is a rod type (straight type), and between the screen display part and the key top part.
- a folding type in which a hinge (hinge) is arranged and can be folded
- the thinning of the key sheet to which the present invention is applied can be applied to any type.
- An example of application to a folding type see Fig. 1 will be shown.
- a thin key sheet (hereinafter simply referred to as "key sheet") 1 is a numeric keypad 2a, 2a displaying alphabets, symbols and Z or numbers, and a power source.
- a set of a plurality of keys that are push buttons such as function keys 2b and 2b to which functions such as ON / OFF, line disconnection, mail, etc. are assigned, and cursor key 2c in the upper center portion.
- Key 2a, 2a, '..., 2b, 2b, ..., 2c corresponding to the key top 2, 2, ..., and various thermoplastic elastomers that support and fix the key top 2, 2, ...
- the keypad 3 is a flexible sheet having rubber elasticity such as silicone rubber.
- the body On the back side of the part corresponding to each key 2a, 2a, 2c, contact pressing projections (pressers) 3a, 3a , ... is formed in the body.
- Metal domes 4 and 4 etc. that are electrically connected by short-circuiting a plurality of normally open contacts that are closed by pressing each key top 2 as switch elements on the lower surface of the key sheet 1 thus configured.
- the provided printed circuit board 5 is disposed in close contact.
- the force 6, which is not an essential component, is a frame for decoration or for fixing the key sheet 1 that is fixed to the keypad 3 and is arranged so as to surround the key tops 2, 2,. is there.
- each key top 2 On the back surface of each key top 2, a sentence representing the function of each key 2a, 2a,..., 2b, 2b, a sentence representing the function of each key 2a, 2a,..., 2b, 2b,.
- the EL elements 8, 8,..., which are light sources for illuminating letters, symbols, figures, etc., are directly formed by an appropriate printing method such as screen printing (see FIGS. 4 to 7).
- a wiring pattern 3b made of a metal thin film is formed by a metal thin film deposition method such as vapor deposition or sputtering.
- the film is formed with the material constituting the keypad 3 stretched in order to reliably form the wiring pattern 3b without disconnection. I hope that.
- the wiring patterns 3b on the front and back sides are connected by a through hole 3c (see FIGS. 6 and 7).
- the through hole 3c may be filled with conductive rubber or conductive ink 3d to ensure the connection of the wiring patterns 3b on the front and back sides (see FIG. 6).
- each key top 2, 2, ... is made of transparent hard resin
- the back of each key 2a, 2a, ..., 2b, 2b, ... 'and 2c A character printing layer 9 that represents alphabets, symbols, Z or numbers indicating functions in a positive or negative format is formed by an appropriate method such as screen printing (see FIGS. 5 and 7).
- the EL element 8 is formed on the character print layer 9.
- the surface on which the character print layer 9 is formed is not limited to the back surface of the key top 2, but is formed on the back surface of an appropriate resin film 10, and the surface of the key top 2 (
- the structure (see FIG. 6) covering the top surface and the side surface may be a so-called film key, or a structure provided simply on the surface (top surface) of the key top. Specific examples of the present invention are listed below.
- the key sheet 1 of this embodiment is a separate key corresponding to the various keys 2a, 2a, 2b, 2b and 2c, and is a key top made of a thin metal plate such as SUS. 2, 2,... And key tops 2, 2,... Are arranged on the upper surface and key sheets 1/3 which are fixed by an adhesive 7 or the like constitute key sheet 1.
- a printed circuit board 5 formed by molding is closely arranged.
- FIG. 4 when the key top 2 is pushed down, two normally open contacts (shown in the figure) placed on the printed circuit board 5 are pressed by the pusher 3a on the back of the keypad 3.
- the metal dome 4 is short-circuited. As a result, the electric circuit is completed only while the key top 2 is pressed.
- the key top 2 is provided with an alphabet, symbol and Z or number indicating the function of each key 2a, 2a, 2b, 2b and 2c. Further, through holes 2d and 2d are formed penetrating from the front surface to the back surface of the metal plate constituting the key top 2 in accordance with the shape of alphabets, symbols and Z or numbers. These through-holes 2d and 2d, as shown in the enlarged partial view of FIG. Filled with transparent resin 2e, 2e.
- each of the key tops 2, 2,... EL (Electro-lumines cence) elements 8, 8,.
- the wiring for supplying power to each EL element 8 uses the wiring pattern 3b of the keypad 3 having silicone rubber and the like.
- the key tops 2, 2,... Having the above configuration are fixed to predetermined portions on the upper surface of the key pad 3 by the adhesive 7.
- the EL element 8 is electrically connected to the printed circuit board 5 by the wiring pattern 3b formed on the keypad.
- a metal plate having a thickness of 0.1 to 0.3 mm is used as the key top 2. This is combined with a metal dome 4 having a thickness of 0.2 to 0.3 mm, and the thickness of the keypad 3 is added to the metal dome 4, that is, from the surface of the key top 1 to the printed circuit board 5. The thickness up to the surface can be reduced to about 0.88 to 0.98 mm. Note that the thinner the key top 2 is, the more effective it is to make the key sheet 1 thinner. However, if the key top 2 is too thin, it will be deformed and deformed if any stress is applied to the key top 2.
- the thickness is about 0.2 to 0.3 mm.
- materials and methods that can overcome the problem of deformation due to this stress are used, it is possible to make the thickness less than 0.1 mm.
- the strength and shape recoverability required for the key top 2 are reduced by adopting a structure (laminated structure) in which a power metal plate is sandwiched from above and below by two thin grease films. Without making it, the thickness of the metal plate itself can be further reduced.
- FIG. 5 shows a cross-sectional view of Example 2 in which a hard resin board is adopted as the key top 2.
- the key sheet 1A includes numeric keys 2a and 2a displaying alphabets, symbols and Z or numbers, power on / off, and line disconnection.
- a plurality of keys such as function keys 2b and 2b to which functions such as mail are assigned and a cursor key 2c in the upper center portion are formed as a plurality of key tops 2 and 2, respectively.
- Each key 2a, 2a, 2b, 2b, and 2c has a structure in which the key tops 2 and 2 are separated and operate independently up and down.
- Each of the key tops 2 and 2 is formed of a transparent hard resin such as a polycarbonate resin or an acrylic resin.
- a positive or negative character print layer 9 is formed on the back surface of each key top 2, and an EL element 8 is formed so as to cover the character print layer 9.
- Various characters representing the function of the key formed on the character print layer 9 are illuminated by the light emitted from the EL element 8.
- the key tops 2, 2,... are fixed to predetermined positions on the upper surface of the key pad 3 by the adhesive 7.
- the EL element 8 is electrically connected to the printed circuit board 5 by the wiring pattern 3b formed on the keypad.
- the thickness limit is 0.6 mm, so the thickness from the surface of the key top 1 to the surface of the printed circuit board 5 is 1. It became possible to make it about 28mm. Since the configuration of the key sheet 1A is basically the same as that of the key sheet 1 of the first embodiment except for the configuration described above, the same configuration portion will be described in the description of the key sheet 1. The description is omitted by using the same reference numerals as those used.
- FIG. 6 shows Embodiment 3 of the thin key sheet of the present invention.
- the key sheet 1B according to the third embodiment employs a so-called film key structure for the key top 2. That is, the key tops 2, 2,... Are covered with an appropriate transparent resin film 10, 10,. Has a structured. On the back side of the film 10 (the surface fixed to the inner transparent hard resin), the functions of the keys 2a, 2a, 2b, 2b and 2c are shown in the key tops 2, 2,.
- Character printing layer 9 such as alphabets, symbols and Z or numbers is formed by printing or the like.
- the key top 2 is manufactured by a general film key manufacturing method, that is, a film sheet on which a character printing layer 9 or the like has been previously formed is placed in a mold, and a transparent hard resin is placed in the mold. It is formed by injecting and molding the resin and the film sheet integrally.
- the EL element 8 may be formed on the force film 10 formed on the back surface of the key top 2 by printing or the like from above the character printing layer 9.
- the keypad 3 is formed with through holes 3c for electrically connecting the wiring patterns 3b, 3b on the front and back sides.
- the through hole 3c is filled with conductive rubber or conductive ink 3d. That is, the through hole 3c is filled by printing rubber or conductive ink after the electrical connection between the upper surface and the lower surface is completed.
- the key tops 2, 2,... Having the above configuration are fixed to predetermined portions on the upper surface of the keypad 3 by an adhesive 7.
- the EL element 8 is electrically connected to the printed circuit board 5 by the wiring pattern 3b formed on the keypad.
- the key top 2 Since the strength of each key top 2 of the key sheet 1B is increased by the film 10 covering the surface, the key top 2 can be made thinner than the key top 2 of the key sheet 1A, which is entirely formed of a hard resin. In order to be able to do so, the thickness could be 0.3 mm. Therefore, the total thickness was within about 0.98 mm.
- the configuration of the key sheet 1B is basically the same as that of the key sheet 1A of the second embodiment except for the configuration described above. Therefore, the same configuration portion is used in the description of the key sheet 1. The description is omitted by using the same reference numerals as those used.
- FIG. 7 shows Example 4 of a thin key sheet that employs a hard resin plate as the key top 2.
- the key sheet 1C according to the fourth embodiment has the same basic configuration as the key sheet 1A according to the second embodiment, and the numeric keys 2a and 2a on which alphabets, symbols and Z or numbers are displayed, and the power is turned on.
- 'Function keys 2b, 2b to which functions such as off, line disconnection, mail, etc. are assigned, and a plurality of keys that are push buttons such as the cursor key 2c in the upper center are separated as a plurality of key tops 2, 2.
- It has key tops 2 and 2 formed on the body.
- Each keytop 2, 2 is made of transparent hard resin such as polycarbonate resin or acrylic resin. Is formed.
- a positive or negative character print layer 9 is formed on the back surface of each key top 2, and an EL element 8 is formed so as to cover the character print layer 9.
- Various characters representing the function of the key formed on the character print layer 9 are illuminated by the light emitted from the EL element 8.
- the keypad 3 is formed with through holes 3 c that electrically connect the wiring patterns 3 b and 3 b on the front and back sides.
- the key tops 2, 2,... Having the above configuration are fixed to predetermined positions on the upper surface of the keypad 3 by an adhesive 7.
- the EL element 8 is electrically connected to the printed circuit board 5 by the wiring pattern 3b formed on the keypad.
- the key sheet 1C is used in the description of the key sheet 1 for the same configuration.
- the description is omitted by using the same reference numerals as the reference numerals.
- the character print layer 2 does not necessarily have to be formed on the back surface, and the surface (upper surface and side surface exposed to the outside) may be appropriately decorated to form the color tone of the appearance or characters by painting or the like. .
- the metal dome 4 is interposed between the pressers 3 a, 3 a,... On the lower surface of the keypad 3 and the printed circuit board 5.
- the metal dome 4 is made of a material such as phosphor bronze having conductivity and shape storage ability, and is named after having a dome shape.
- the metal dome 4 does not necessarily have such a dome shape.
- the metal dome 4 When the key top 2 is pushed down, the metal dome 4 is pressed by the pusher 3a of the keypad 3 to securely close the normally open contact, and the key top 2 It only needs to have a shape and structure that can return to its original shape when the push-down is stopped.
- the metal dome 4 responds to the downward movement of the metal dome element and closes the normally open contact point printed on the printed circuit board 5 disposed below the metal dome element. It plays the role of forming an electrical circuit.
- the top surface or the bottom surface of the key top 2 is provided with a character print layer 9 that is a decoration including characters, symbols, and the like displaying the function of each key, using various arbitrary decoration methods. Even if the key top is made of metal, it is not necessary to give the key sheet a metallic appearance. It is also possible to apply various types of coating to the surface of
- the present invention relates to a thin key sheet used for mopile equipment such as a mobile phone and a personal digital assistant (PDA), the electronic equipment and various parts thereof including the manufacturing industry for these electronic equipment and these parts are provided. It has a wide range of applicability in the industrial field where thinning of equipment is required.
- PDA personal digital assistant
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Push-Button Switches (AREA)
- Manufacture Of Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006800041950A CN101116161B (zh) | 2005-02-07 | 2006-02-07 | 薄型键盘 |
| EP06713159A EP1852881A1 (en) | 2005-02-07 | 2006-02-07 | Thin key sheet |
| US11/815,608 US7705256B2 (en) | 2005-02-07 | 2006-02-07 | Thin key sheet |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-029994 | 2005-02-07 | ||
| JP2005029994A JP2006216473A (ja) | 2005-02-07 | 2005-02-07 | 薄型キーシート |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006082973A1 true WO2006082973A1 (ja) | 2006-08-10 |
Family
ID=36777350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2006/302016 Ceased WO2006082973A1 (ja) | 2005-02-07 | 2006-02-07 | 薄型キーシート |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7705256B2 (ja) |
| EP (1) | EP1852881A1 (ja) |
| JP (1) | JP2006216473A (ja) |
| KR (1) | KR20070101283A (ja) |
| CN (1) | CN101116161B (ja) |
| WO (1) | WO2006082973A1 (ja) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7855347B2 (en) * | 2005-11-08 | 2010-12-21 | Shin-Etsu Polymer Co., Ltd. | Member for push button switch and method of manufacturing the same |
| KR100804218B1 (ko) * | 2006-06-02 | 2008-02-26 | 주식회사 엠.지.피 | 분리된 키를 갖는 서스형 키패드 및 그 제조방법 |
| US7777144B2 (en) * | 2007-11-16 | 2010-08-17 | Ichia Technologies, Inc. | Metal keypad panel structure with micropore array |
| CN101488408B (zh) * | 2008-01-14 | 2012-07-25 | 深圳富泰宏精密工业有限公司 | 电子装置的按键面板结构及其制造方法 |
| TW201011801A (en) * | 2008-09-05 | 2010-03-16 | Asustek Comp Inc | Keyboard and electronic device |
| KR102501571B1 (ko) * | 2016-02-12 | 2023-02-21 | 삼성전자 주식회사 | 전자장치의 키 장치 |
| TWI702626B (zh) * | 2018-03-30 | 2020-08-21 | 英屬開曼群島商康而富控股股份有限公司 | 具有較佳按壓手感的觸控按鍵 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11134961A (ja) * | 1997-10-27 | 1999-05-21 | Sun Arrow Kk | シールド導電キーユニット及びその製造方法 |
| JP2002025374A (ja) * | 2000-07-07 | 2002-01-25 | Matsushita Electric Ind Co Ltd | Elシート及びこれを用いたスイッチ |
| JP2003007161A (ja) * | 2001-05-22 | 2003-01-10 | You Eal Electronics Co Ltd | 無線電話機用キーパッド |
| WO2004038746A1 (ja) * | 2002-10-23 | 2004-05-06 | Sunarrow Ltd. | キーユニット、キートップへのマーキング方法及びこれを利用するキーユニットの製造方法 |
| JP2004193060A (ja) * | 2002-12-13 | 2004-07-08 | Shin Etsu Polymer Co Ltd | 照光式押釦スイッチ用部材 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5797482A (en) * | 1996-11-25 | 1998-08-25 | Metro-Mark, Inc. | Electroluminescent keypad |
| JP3802736B2 (ja) | 2000-08-02 | 2006-07-26 | 信越ポリマー株式会社 | 押釦シート部材 |
| US7070349B2 (en) * | 2004-06-18 | 2006-07-04 | Motorola, Inc. | Thin keyboard and components for electronics devices and methods |
| US7273993B1 (en) * | 2006-03-21 | 2007-09-25 | Motorola, Inc. | Keypad for data entry |
-
2005
- 2005-02-07 JP JP2005029994A patent/JP2006216473A/ja active Pending
-
2006
- 2006-02-07 EP EP06713159A patent/EP1852881A1/en not_active Withdrawn
- 2006-02-07 CN CN2006800041950A patent/CN101116161B/zh not_active Expired - Fee Related
- 2006-02-07 US US11/815,608 patent/US7705256B2/en not_active Expired - Fee Related
- 2006-02-07 WO PCT/JP2006/302016 patent/WO2006082973A1/ja not_active Ceased
- 2006-02-07 KR KR1020077017038A patent/KR20070101283A/ko not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11134961A (ja) * | 1997-10-27 | 1999-05-21 | Sun Arrow Kk | シールド導電キーユニット及びその製造方法 |
| JP2002025374A (ja) * | 2000-07-07 | 2002-01-25 | Matsushita Electric Ind Co Ltd | Elシート及びこれを用いたスイッチ |
| JP2003007161A (ja) * | 2001-05-22 | 2003-01-10 | You Eal Electronics Co Ltd | 無線電話機用キーパッド |
| WO2004038746A1 (ja) * | 2002-10-23 | 2004-05-06 | Sunarrow Ltd. | キーユニット、キートップへのマーキング方法及びこれを利用するキーユニットの製造方法 |
| JP2004193060A (ja) * | 2002-12-13 | 2004-07-08 | Shin Etsu Polymer Co Ltd | 照光式押釦スイッチ用部材 |
Also Published As
| Publication number | Publication date |
|---|---|
| US7705256B2 (en) | 2010-04-27 |
| US20080277253A1 (en) | 2008-11-13 |
| CN101116161A (zh) | 2008-01-30 |
| JP2006216473A (ja) | 2006-08-17 |
| KR20070101283A (ko) | 2007-10-16 |
| CN101116161B (zh) | 2012-03-28 |
| EP1852881A1 (en) | 2007-11-07 |
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