WO2006070854A1 - 薄型キーシート及び該薄型キーシートを組み込んだ薄型キーユニット - Google Patents
薄型キーシート及び該薄型キーシートを組み込んだ薄型キーユニット Download PDFInfo
- Publication number
- WO2006070854A1 WO2006070854A1 PCT/JP2005/024024 JP2005024024W WO2006070854A1 WO 2006070854 A1 WO2006070854 A1 WO 2006070854A1 JP 2005024024 W JP2005024024 W JP 2005024024W WO 2006070854 A1 WO2006070854 A1 WO 2006070854A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- key
- thin
- key top
- circuit board
- printed circuit
- Prior art date
Links
Classifications
-
- 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
- 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
- H01H13/703—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 spacers between contact carrying layers
-
- 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
- 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
- H01H2205/00—Movable contacts
- H01H2205/016—Separate bridge contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2209/00—Layers
- H01H2209/002—Materials
- H01H2209/0021—Materials with metallic appearance, e.g. polymers with dispersed particles to produce a metallic appearance
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2209/00—Layers
- H01H2209/068—Properties of the membrane
- H01H2209/074—Properties of the membrane elastomeric
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2211/00—Spacers
- H01H2211/006—Individual areas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2211/00—Spacers
- H01H2211/026—Spacers without separate element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2211/00—Spacers
- H01H2211/026—Spacers without separate element
- H01H2211/03—Ridges on layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2215/00—Tactile feedback
- H01H2215/004—Collapsible dome or bubble
-
- 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
- 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
- H01H2227/00—Dimensions; Characteristics
- H01H2227/002—Layer thickness
- H01H2227/01—Adhesive
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/024—Spacer elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/036—Minimise height
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2229/00—Manufacturing
- H01H2229/058—Curing or vulcanising of rubbers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/022—Telephone handset
Definitions
- the present invention relates to a key sheet in which a plurality of keys as input means for handy and mopile devices such as a mobile phone and a personal digital assistant (PDA), and a key unit incorporating the key sheet.
- PDA personal digital assistant
- the present invention relates to a technology for reducing the thickness.
- 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 configuration, 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.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-234757
- the light source for illuminating the key top from the back surface is a three-dimensional structure having vertical, horizontal, and height dimensions, such as red beans, although it is small, especially its height. However, it was preventing thinning.
- the thinning 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.
- LED light emitting diode
- 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.
- An object is to improve waterproofness and dustproofness.
- a cushion gasket having appropriate elasticity is used instead of a keypad made of silicone rubber or thermoplastic elastomer, and a key top is used.
- the thickness is limited to 0.6 mm, or if it is made of a metal plate such as SUS (stainless steel), the thickness is 0.1 to 0.3 m. to m.
- holes such as letters may be made by laser etching or chemical etching in order to be illuminated. However, when such holes are drilled, it is necessary to provide waterproof and dustproof properties to the holes and not to damage the fingers during operation with the edge of the holes. Become. In addition, it is desirable to provide overall life waterproofing.
- a conventional three-dimensional light source such as an LED is used instead.
- a thin-film EL (electro-luminescence) element that can significantly reduce the thickness (height)
- forming the thin-film EL element on the back of the key top by printing -Use a thin key sheet configuration.
- the wiring to the thin EL light source is applied to a keypad or key top by a method of depositing a metal thin film such as vapor deposition or sputtering.
- a cushion gasket with appropriate elasticity is used instead of the keypad, so that the keytop is supported so that it can be displaced up and down and the keytop is fixed.
- the adhesive layer for fixing the key top to the pad has been reduced, and a further reduction in thickness has been realized.
- 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 a cross-sectional view showing an outline of a process of attaching a cushion gasket to a predetermined portion on the back surface of the key top in Embodiment 1 of the thin key sheet according to the present invention. .
- Example 1 of the thin key sheet according to the present invention a plurality of locations on the back surface of the key top It is a perspective view which shows the state in which the gasket for cushions was adhered to the fixed part.
- FIG. 6 is an enlarged cross-sectional view showing the structure of Example 1 of the thin key sheet according to the present invention.
- FIG. 7 is an enlarged perspective view showing an appearance of the thin key sheet according to the second embodiment of the present invention.
- FIG. 8 is an enlarged cross-sectional view showing the structure of Example 2 of the thin key sheet according to the present invention.
- FIG. 9 is an enlarged perspective view showing the appearance of Embodiment 3 of the thin key sheet according to the present invention.
- FIG. 10 is an enlarged sectional view showing the structure of a fourth embodiment of the thin key sheet according to the present invention.
- FIG. 11 is an enlarged cross-sectional view showing the structure of a modified example of Example 4 of the thin key sheet according to the present invention.
- FIG. 12 is an enlarged sectional view showing the structure of the fifth embodiment of the thin key sheet according to the present invention.
- FIG. 13 is an enlarged cross-sectional view showing the structure of a modification of the fifth embodiment of the thin key sheet according to the present invention.
- FIG. 14 is an enlarged cross-sectional view showing the structure of another variation of the fifth embodiment of the thin key sheet according to the present invention.
- FIG. 16 is an enlarged cross-sectional view showing a structure containing a foam material or a soft material of Example 7 of a thin key sheet according to the present invention.
- FIG. 17 is an enlarged cross-sectional view showing a structure containing a foam material or a soft material of Example 8 of a thin key sheet according to the present invention.
- FIG. 18 is an enlarged cross-sectional view showing a structure containing a foamed material or a soft material of a modified example of Example 9 of the thin key sheet according to the present invention.
- FIG. 19 is an enlarged cross-sectional view showing the structure of the thin key sheet according to the present invention in Example 10 containing a foam material or a soft material.
- FIG. 20 is an enlarged cross-sectional view showing the structure of a modified example (without a gasket, foamed material or soft material) of Example 10 of the thin key sheet according to the present invention.
- Example 21 An enlarged cross-sectional view showing the structure of another modified example of the thin key sheet according to the present invention in Example 10 (without a gasket, with a foam material or a soft material).
- a foam material such as urethane foam, which is a material having flexibility and shape restoration property, or various soft elastomers between the back surface of the key top and the printed circuit board disposed therebelow.
- a first-class soft material By interposing a first-class soft material, it is possible to reduce the thickness while improving the key click feeling. The detailed description will be given later in the description of the first embodiment.
- a light source an EL sheet (arranged in a predetermined pattern on a resin film) pasted between the key top and the circuit pattern (specifically, on the metal dome disposed on the printed circuit board).
- the foam or soft material must be transparent.
- 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.
- thin key sheets (hereinafter simply referred to as “key sheets”) 1, 1A, and 1B are ten characters with alphabets, symbols, and / or numbers, respectively.
- Key 2a functions that are assigned functions such as power on / off, line disconnection, mail, etc.
- Key 2b and cursor keys 2c in the upper center area are assembled together as a group of keys.
- Key top 2 (or key tops 2a to 2d) formed (Fig. 2 and Fig. 9) or separately (Fig. 7) and various rubber forces such as conventional silicone rubber and thermoplastic elastomer, etc. It is composed of a cushion gasket (hereinafter simply referred to as “gasket”) 3 used in place of a keypad as a seat.
- gasket cushion gasket
- a metal dome 4 or the like that is electrically connected by short-circuiting a plurality of normally open contacts that are closed by pressing a push button.
- the printed circuit board 5 is placed in close contact, and the EL element 6 used as a light source to illuminate the key top also with the back surface force is placed between the key top 2 and the printed circuit board 5 and integrated as an illuminated pushbutton switch.
- a key unit modularized is configured.
- the printed circuit board 5 has front and back wiring patterns 5a connected to each other through through holes 5b (see FIGS. 6, 8, and 10 to 14).
- the through hole 5b may be filled with conductive rubber or conductive ink 5c in order to ensure the connection between the front and back wiring patterns 5a (see FIG. 10). Specific examples of the present invention are listed below.
- the key unit of the present embodiment includes a key top 2 made of a thin metal plate force such as SUS formed by integrally assembling various keys 2a, 2b and 2c, and A key sheet 1 is composed of a gasket 3 disposed along the outer periphery of each key, and a printed circuit board 5 formed by resin molding is in close contact with the key sheet 1.
- a key top 2 made of a thin metal plate force such as SUS formed by integrally assembling various keys 2a, 2b and 2c
- a key sheet 1 is composed of a gasket 3 disposed along the outer periphery of each key, and a printed circuit board 5 formed by resin molding is in close contact with the key sheet 1.
- a one-dot chain line 8 extending horizontally indicates a position where the bottom of the key top 2 is pushed down against the elasticity of the gasket 3 and the metal dome 4 when the key top 2 is pressed.
- the key top 2 is pushed down to the position of the alternate long and short dash line 8, it is pressed by the pusher 7 on the back surface of the key top 2, and two normally-open contacts (not shown) arranged on the printed circuit board 5 are The metal dome 4 is short-circuited between them. As a result, the electric circuit is completed only while the key top 2 is pressed.
- 9 is a spacer for supporting the key top 2 on its outer peripheral portion.
- the key top 2 has a key top 2 for illuminating alphabets, symbols and Z or numbers indicating the functions of the keys 2a, 2b and 2c, respectively.
- These through holes 2d are filled with an appropriate transparent resin 2f for waterproofing and dustproofing as shown in the partially enlarged view of FIG.
- the key top 2 is provided with a cut line 2e so as to correspond to and divide the areas of the keys 2a, 2b and 2c.
- each key 2a, 2b and 2c is connected to the other only at one end portion, and the connected portion performs a substantially hinge-like function so that each key 2a, 2b and 2c can move up and down easily when pressed.
- Each cut line 2e is buried with appropriate grease 2f attached only to a part thereof so as not to hinder the movement of each key 2a, 2b and 2c for waterproofing and dustproofing (FIG. 6). reference).
- EL (Electro-luminescence) elements 6 are formed by printing on the back surfaces of the keys 2a, 2b and 2c of the key top 2 as light sources for transmitted illumination.
- dispenser 10 On the back surface of the key top 2 or the front surface of the printed circuit board 5, dispenser 10 or screen printing (when the thickness is 0.3 mm or less) or the like corresponding to the position of each key 2a, 2b and 2c.
- the gasket 3 is formed in a desired pattern in a linear or dot shape (see FIGS. 4 and 5).
- the key top 2 is arranged and fixed directly on the printed circuit board 5 through the gasket 3.
- the gasket 3 is supplied by a dispenser 10 or the like and attached to the back surface of the key top 2 or the printed circuit board 5.
- the gasket 3 is easy to flow in the fluid, and when it is attached to the back surface of the key top 2 or the printed circuit board 5, it flows and does not collapse, that is, thixotropy.
- a material having is desirable.
- it is desirable to dry and solidify quickly by evaporation of the solvent, irradiation of ultraviolet rays, heating, or the like.
- any material may be appropriately selected and adopted as long as it has conditions that are materials having adhesiveness and rubber-like elasticity in addition to the above properties.
- various types of foamed resin such as foamed urethane resin, silicone-based and urethane acrylate resin, etc. can be used.
- the invention (gasket) that the applicant has jointly filed with other applicants. Composition and manufacturing method of gasket using the same: International Publication No. WO96Z10594Z Korean Patent No. 235841, Chinese Patent No. 95195961, Singapore Patent No. 39208, US Patent No. 5945463, Japanese Patent Application No. 8-511615) Since the “gasket composition” and the like can be used, they will be exemplified.
- Fig. 4 is a cross-sectional view of the work state in which the material of the gasket 3 is attached to a predetermined portion corresponding to each key 2a, 2b and 2c of the key top 2 on the surface of the printed circuit board 5 via the dispenser 10.
- Fig. 4 (a) shows the state of linearly adhering to the inside of each key area indicated by a broken line
- Fig. 4 (b) shows the dot shape at appropriate intervals according to each key area. The state of attaching to each is shown.
- the working condition when the material of gasket 3 is adhered to the inside of the key 2 on the back side of the key top 2 with the keys 2a, 2b, etc. on the back side is shown in Fig. 5 (a) and Fig. 5 5 (b) is a perspective view.
- the gasket 3 is kept raised to some extent when attached to the back surface of the key top 2, and solidifies while maintaining a shape that does not flow and collapse. , Keep the predetermined cushioning properties.
- Fig. 4 (a) and Fig. 5 (a) when the gasket 3 is attached in a linear shape, a part of the gasket 3 is notched to provide an appropriate gap, and an air vent portion that accompanies key pressing is provided. In the case where such a gap is not provided, the through hole of the printed circuit board 5 can be a similar air vent.
- Wiring means for supplying illumination power to each EL element 6 is not particularly limited.
- a contact protrusion 11 is provided at an appropriate position of the printed wiring 5a on the printed circuit board 5 with conductive rubber or the like, and the upper end force of the contact protrusion 11 is always in contact with the contact on the L element 6 side.
- a touching structure may be employed.
- a metal plate having a thickness of 0.2 mm can be used as the key top 2, and a metal dome having a thickness of 0.2 to 0.3 mm can be used therefor. 4 is combined, and the thickness obtained by adding the thickness of the contact pressing protrusion 7, that is, the surface force of the key top 2 to the surface of the printed circuit board 5 can be about 0.65 mm.
- the key top 2 in the key sheet 1 and the key sheet 1B described later has a structure that presses the metal dome by utilizing the elasticity of the metal plate.
- the thickness is about 0.2 mm at present.
- the thickness can be 0.1 mm.
- the thin key sheet 1A has functions such as a numeric keypad 2a displaying alphabets, symbols and / or numbers, power on / off, line disconnection, and mail.
- a plurality of keys that are push buttons such as the assigned function key 2b and the cursor key 2c in the upper center portion are formed separately as a plurality of key tops 2, respectively.
- Each key 2a, 2b and 2c has a structure in which the key top 2 is a separate body and operates independently up and down.
- a key frame 13 fixed to the printed circuit board 5 via the spacer 9 is provided between the key tops 2 so as to surround the outer periphery of the key top 2.
- Key sheet 1A is basically the same structure as key sheet 1 except for the structure described above, and therefore, the same reference numerals used in the description of key sheet 1 are used for parts having the same structure. The description will be omitted by using the same reference numerals.
- FIG. 9 shows Embodiment 3 of the thin key sheet of the present invention.
- the key sheet 1B according to the third embodiment eliminates the cut lines 2e that correspond to the areas of the keys 2a, 2b, and 2c provided on the key top 2 of the key sheet 1 in the first embodiment described above to separate them.
- the metal dome can be pressed only by the elasticity of the metal plate constituting the key top 2 so that it can move up and down.
- the key top 2 of the key sheet 1B does not cause a problem that it is deformed when stress is applied and does not return to its original shape. Thus, it was set to 0.2 mm.
- the configuration of the key sheet 1B is basically the same as that of the key sheet 1 except for the configuration described above. Therefore, the same reference numerals are used for the description of the key sheet 1 for the same configuration. The description is omitted by using the reference numerals.
- FIG. 10 and FIG. 11 show Example 4 of the thin key sheet of the present invention and its modification.
- the key sheet 1C according to the fourth embodiment has the same basic configuration as the key sheet 1A according to the second embodiment.
- the key sheet 1C is displayed with alphabets, symbols and Z or numerals, and the power is turned on / off.
- a function key 2b to which functions such as line disconnection and mail are assigned, and a plurality of keys such as cursor keys 2c in the upper center portion are formed as separate key tops 2, respectively.
- Each key top 2 is made of a transparent hard resin such as polycarbonate resin or acrylic hard resin.
- a positive or negative character print layer 12 is formed on the back surface of each key top 2, and an EL element 6 is formed so as to cover the character print layer 12.
- Various characters representing the function of the key formed on the character print layer 12 are illuminated by the light emitted from the EL element 6.
- the wiring pattern 5a of the printed circuit board 5 is connected to the front and back by through holes 5b filled with conductive rubber or conductive ink 5c.
- FIG. 11 shows a modified example 1D of the key sheet 1C. Like the key sheet 1D, the structure for connecting the front and back wiring patterns 5a on the printed circuit board 5 may be simply opened through holes 5b. Is possible.
- the appearance of the key sheets 1C and 1D of the fifth embodiment is substantially the same as the key sheet 1A shown in FIG. Since the key sheets 1C and 1D are basically the same as the key sheets 1 and 1A, except for the above-described structure, the description of the key sheet 1 will be made with respect to the same structure. The description is omitted by using the same reference numerals as those used at the time. If the key top 2 is made of resin, the color of the appearance and characters are formed by painting on the surface (upper surface and side surface exposed to the outside) instead of forming the character printing layer 12 on the back surface. Appropriate decoration can be applied.
- Figs. 12 to 14 show Embodiment 5 of the thin key sheet of the present invention and two modifications thereof.
- the key sheet 1E and its modifications 1F and 1G according to the fifth embodiment are similar to the above-described embodiments.
- Function keys to which functions such as line disconnection and mail are assigned 1b or a metal key top 2 (or a separate key top 2 made of metal or resin) in which a plurality of keys that are push buttons such as the cursor key 2c in the upper center portion are integrally formed.
- a positive or negative character print layer 12 is formed on the back surface of each key top 2 of the key sheet 1E shown in FIG.
- the key sheets 1F and 1G shown in FIGS. 13 and 14 are provided with through holes 2d formed in the shape of characters or the like.
- the EL element 6 is not formed on the back surface of each key top 2, but is formed on a sheet made of resin on a sheet of resin. It is arranged so as to cover the surface of the printed circuit board 5 and the metal dome 4.
- the appearances of the key sheets 1E, IF and 1G are substantially the same as the key sheets 1A and 1B shown in FIGS. 7 and 9, respectively. Since the key sheets 1D, IE, and IF are basically the same as the key sheets 1 and 1A except for the above-described structure, the description of the key sheet 1 will be given for the same structure. The description is omitted by using the same reference numerals as those used at the time.
- the key top is a metal plate such as resin or SUS.
- the limit thickness of key top 2 is 0.6mm (overall: 1.05mm) for grease and about 0.2mm (overall from 0.1 to 0.3mmZ: 0.75mm or 0.65mm) for SUS.
- the thickness from the substrate surface to the substrate surface can be 0.6 to 1.1 mm.
- Wiring to the EL element 6 used as a light source for illuminating characters or the like indicating the function of each key 2a, 2b and 2c is performed by forming a copper wiring pattern on the printed circuit board 5, and EL integration Constructs a thin key sheet.
- a letter-shaped through hole may be formed by etching or an appropriate method in order to make it illuminated.
- the key top is made of metal, all the key tops can be integrated to form a sealed structure sandwiched between the key top and the circuit board (see FIGS. 2 and 9).
- the metal plate is not limited to S US. Any metal having appropriate elasticity may be used.
- a metal dome 4 is interposed between the lower surface of the key top 2 and the printed circuit board 5.
- Meta Ledome 4 is made of a material such as phosphor bronze having conductivity and shape memory ability, and is named after having a dome shape.
- the metal dome 4 does not necessarily need to be in such a dome shape.
- 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 decorated with characters, symbols, and the like indicating the function of each key using various arbitrary decoration techniques. Even if the key top is made of metal, it is possible to apply various types of coating to the surface of the key top as long as it does not simply give the key sheet a metallic appearance.
- an extremely thin sheet for example, polyethylene terephthalate
- a thin sheet such as a film is placed on the surface of the printed circuit board 5.
- the thin sheet 5d is shown so as to cover the hole of the through hole 5b shown in FIG. It should be understood that it is also deposited on the metal dome 4 as well.
- Example 6 in which the filler layer 14 is provided will be described.
- the cushion gasket 3 is placed on the upper surface of the printed circuit board 5 (along the inner periphery of the back surface of each key top 2). Ii) was turned into a “continuous bank” (see Figure 5). As a result, an enclosed space is generated between the key top 2 and the printed circuit board 5 disposed below the key top 2. Since the contact protrusions 11 are interspersed, no surrounding space is created.
- This enclosed space consists of the gasket 3, the thin-film EL light source element 6 attached to the lower surface of the key top 2, and the above-mentioned extremely thin sheet 5d attached to the upper surface of the printed circuit board 5 together with the metal dome 4. And is surrounded by.
- the enclosed space is filled with a foam material or a soft material.
- Figure 15 shows the filler layer 14 after filling. Since the foamed material or soft material to be used needs to have flexibility and shape restoration properties, for example, a silicone-based or urethane acrylate-based foamed material is preferably various soft elastomers. Specific examples include soft foam materials such as urethane foam.
- the foamed material or the soft material may be inserted into the enclosed space, which does not necessarily need to be filled, by inserting a thin sheet of the foamed material or the soft material.
- the cushion gasket 3 is not necessarily provided.
- FIG. 16 shows Embodiment 7 of the thin key sheet of the present invention.
- the thin key sheet 1A according to Example 7 has functions such as a numeric keypad 2a on which alphabets, symbols and Z or numbers are respectively displayed, power on / off, line disconnection, and mail.
- a plurality of keys that are push buttons such as the assigned function key 2b and the cursor key 2c in the upper center portion are formed as a plurality of key tops 2 separately.
- Each key 2a, 2b, and 2c has a separate key top 2 and 2 that can be operated independently.
- a key frame 13 that is fixed to the printed circuit board 5 via a spacer 9 is provided so as to surround the outer periphery of the key top 2.
- the gasket 3 is attached to the upper surface of the printed circuit board 5 provided with the wiring pattern 5a. Then, as shown in the figure, it keeps a raised state to some extent, solidifies while maintaining its shape without flowing and losing its shape, and maintains a predetermined cushioning property.
- the gasket 3 By rotating the gasket 3 in a “continuous bank” shape along the inner periphery of the back of the numeric key 2a (see Fig. 3) (see Fig. 5), the key top 2 and the print placed below it are displayed. Since a space is generated between the circuit board 5 and the space, the foam layer or the soft material filler layer 14 is filled in the space as in the first embodiment.
- the configuration of the key sheet 1A other than the configuration described above is basically the same as the configuration of the key sheet 1. Therefore, the portion having the same configuration is used in the description of the key sheet 1. The description will be omitted by using the same reference numerals as those used.
- the appearance of the thin key sheet embodiment 8 of the present invention is the same as FIG.
- the key sheet 1B according to the eighth embodiment is a cut line that corresponds to the areas of the keys 2a, 2b, and 2c provided on the key top 2 of the key sheet 1 in the first embodiment described above and separates them. 2e (see Figs. 1 to 3) is eliminated, and the metal dome can be pressed only by the elasticity of the metal plate that makes up the key top 2.
- a filler layer 14 (not shown) is also provided between the key top 2 of the key sheet 1 B according to this embodiment and the printed wiring board 5.
- the key top 2 of the key sheet 1B does not cause a problem that it is deformed when stress is applied and does not return to its original shape. Thus, it was set to 0.2 mm.
- the configuration of the key sheet 1B is basically the same as that of the key sheet 1 except for the configuration described above. Therefore, the same reference numerals are used for the description of the key sheet 1 for the same configuration. The description is omitted by using the reference numerals.
- FIG. 17 and FIG. 18 show Example 9 of the thin key sheet of the present invention and its modification.
- the key sheet 1C according to the ninth embodiment has the same basic configuration as the key sheet 1A according to the seventh embodiment.
- the key sheet 1C is displayed with alphabets, symbols and Z or numerals, and the power is turned on / off.
- a function key 2b to which functions such as line disconnection and mail are assigned, and a plurality of keys such as cursor keys 2c in the upper center portion are formed as separate key tops 2, respectively.
- Each key top 2 is formed of a transparent hard resin such as polycarbonate (PC) resin or polyacrylic resin (PMMA).
- a positive or negative character print layer 12 is formed on the back surface of each key top 2, and an EL element 6 is formed so as to cover the character print layer 12.
- Various characters representing the function of the key formed on the character print layer 12 are illuminated by the light emitted from the EL element 6. It is.
- the wiring pattern 5a of the printed circuit board 5 is connected to the front and back by through holes 5b filled with conductive rubber or conductive ink 5c.
- FIG. 18 shows a modified example 1D of the key sheet 1C. Like the key sheet 1D, the structure for connecting the front and back wiring patterns 5a on the printed circuit board 5 may be simply opened through holes 5b. Is possible.
- the character printing layer 12 can be provided on the front surface (upper surface) instead of the back surface of the key top 2 (the same applies to the following examples). .
- a filler layer 14 is formed by filling or injecting a foam material or a soft material into a recess on the upper surface of the printed circuit board 5. Details of the state of the filler layer 14 are shown in a partially enlarged sectional view in a circle.
- the foam material or soft material constituting the filler layer 14 may be inserted into the dent, which is not necessarily required for filling or injection, by inserting a thin sheet of foam material or soft material.
- the gasket 3 is not necessarily provided.
- the appearance of the key sheets 1C and 1D of the ninth embodiment is substantially the same as the key sheet 1A shown in FIG. Since the configurations other than the above-described configurations of the key sheets 1C and 1D are basically the same as the configurations of the key sheets 1 and 1A, etc., the same configuration portion is used in the description of the key sheet 1. The description will be omitted by using the same reference numerals as those used.
- the key top 2 is made of resin, it is not necessary to form the character print layer 12 on the back surface, but to form the appearance color and characters on the surface (upper surface and side surface exposed to the outside) by coating or the like. Even if you give it a nice decoration.
- FIG. 19 to FIG. 21 show Embodiment 5 of the thin key sheet of the present invention and two modifications thereof.
- the key sheet 1E and its modifications 1F and 1G according to the tenth embodiment are similar to the above-described embodiments in that the numeric keypad 2a displaying alphabets, symbols and Z or numbers, power on / off, line Function key 2b to which functions such as cutting and mail are assigned, and a metal integrated key top 2 (or a metal key top 2 formed of a plurality of keys that are push buttons such as the cursor key 2c in the upper center portion) Or it has a separate key top 2) made of greaves.
- a positive or negative character printing layer 12 is formed on the back surface of each key top 2 made of transparent resin of the key sheet IE shown in FIG.
- the key sheets 1F and 1G shown in FIGS. 20 and 21 are provided with through holes 2d formed in the shape of characters or the like.
- the EL element 6 is printed in a sheet-like form formed by printing on a resin film, which is not formed by printing on the back surface of each key top 2. It is arranged so as to cover the surface of the circuit board 5 and the metal dome 4.
- the key top 2 shown in FIG. 20 is formed integrally by widely gathering a plurality of keys, and thus extends over the spacer 9 existing at the right end of the figure.
- the filler layer 14 is filled or laid in a recess between the rightmost spacer 9 without a gasket.
- the appearances of the key sheets 1E, IF, and 1G are substantially the same as the key sheets 1A and 1B shown in FIGS. 7 and 9, respectively. Since the key sheet 1D, IE, and IF are basically the same as those of the key sheet 1 and 1A except for the above-described structure, the description of the key sheet 1 will be made with respect to this similar structure part. The description is omitted by using the same reference numerals as those used at the time.
- the key top is a metal plate such as resin or SUS.
- the limit thickness of key top 2 is 0.6mm (overall: 1.05mm) for grease and about 0.2mm (overall from 0.1 to 0.3mmZ: 0.75mm or 0.65mm) for SUS.
- the thickness from the substrate surface to the substrate surface can be 0.6 to 1.1 mm.
- Wiring to the EL element 6 used as a light source for illuminating characters and the like indicating the function of each key 2a, 2b and 2c is performed by forming a copper wiring pattern on the printed circuit board 5, and EL integration Constructs a thin key sheet.
- a letter-shaped through hole may be formed by etching or an appropriate method in order to make it illuminated.
- the key top is made of metal, all the key tops can be integrated to form a sealed structure sandwiched between the key top and the circuit board (see Figs. 2 and 9).
- the metal plate is not limited to S US. Any metal having appropriate elasticity may be used.
- a metal dome 4 is interposed between the lower surface of the key top 2 and the printed circuit board 5.
- the metal dome 4 is made of a material such as phosphor bronze having conductivity and shape memory ability, and is named after having a dome shape.
- the metal dome 4 does not necessarily need to be in such a dome shape.
- 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.
- an extremely thin sheet for example, PET, etc.
- PET ethylene glycol
- a thin sheet is placed on the surface of the printed circuit board 5.
- This thin sheet 5d is illustrated as covering the hole of the through hole 5b shown in FIG. It was understood that it was also deposited on the metal dome 4!
- the key top 2 is made of resin, decoration including characters, symbols, and the like indicating the function of each key is applied to the upper surface or the lower surface using various arbitrary decoration techniques. Even if the key top is made of metal, various types of coating can be applied to the surface of the key top if it is not simply used to give the key sheet a metallic appearance.
- the present invention relates to a thin key sheet used in a mopile device such as a mobile phone and a personal digital assistant (PDA), it has a key including the manufacturing industry of electronic devices and various parts thereof. In addition, it has wide applicability in industrial fields that require thinning of these devices.
- a mopile device such as a mobile phone and a personal digital assistant (PDA)
- PDA personal digital assistant
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006550832A JP4653119B2 (ja) | 2004-12-28 | 2005-12-28 | 薄型キーシート及び該薄型キーシートを組み込んだ薄型キーユニット |
US11/793,972 US7705259B2 (en) | 2004-12-28 | 2005-12-28 | Thin key sheet and thin key unit incorporating the thin key sheet |
EP05844842A EP1835517A4 (en) | 2004-12-28 | 2005-12-28 | THIN KEY SHEET AND THIN KEY UNIT WITH THIN KEY SHEET |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-378678 | 2004-12-28 | ||
JP2004378678 | 2004-12-28 | ||
JP2005016253 | 2005-01-25 | ||
JP2005-016253 | 2005-01-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006070854A1 true WO2006070854A1 (ja) | 2006-07-06 |
Family
ID=36614965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/024024 WO2006070854A1 (ja) | 2004-12-28 | 2005-12-28 | 薄型キーシート及び該薄型キーシートを組み込んだ薄型キーユニット |
Country Status (5)
Country | Link |
---|---|
US (1) | US7705259B2 (ja) |
EP (1) | EP1835517A4 (ja) |
JP (1) | JP4653119B2 (ja) |
KR (1) | KR20070089934A (ja) |
WO (1) | WO2006070854A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008041194A (ja) * | 2006-08-08 | 2008-02-21 | Bridgestone Corp | 電子部品装置 |
JP2008067022A (ja) * | 2006-09-07 | 2008-03-21 | Nec Corp | 携帯通信端末の薄型化構造及び携帯通信端末 |
EP1914964A2 (en) | 2006-10-18 | 2008-04-23 | LG Electronics Inc. | Mobile terminal comprising a replaceable keypad cover |
JP2010515228A (ja) * | 2006-12-29 | 2010-05-06 | イマーション コーポレーション | 局所的な触覚フィードバック |
WO2010058671A1 (ja) * | 2008-11-20 | 2010-05-27 | 日本メクトロン株式会社 | 導光板、導光板の製造方法及び、携帯機器のキーモジュール |
TWI691991B (zh) * | 2018-08-31 | 2020-04-21 | 達方電子股份有限公司 | 發光鍵盤及其光源燈板 |
US10720289B1 (en) | 2019-02-20 | 2020-07-21 | Darfon Electronics Corp. | Light emitting keyboard and lighting board thereof |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE602006015229D1 (de) * | 2005-11-08 | 2010-08-12 | Shinetsu Polymer Co | Glied für einen druckknopfschalter und herstellungsverfahren dafür |
US7897888B2 (en) * | 2006-03-30 | 2011-03-01 | Strattec Security Corporation | Key fob device and method |
KR100749124B1 (ko) * | 2006-11-02 | 2007-08-13 | (주)아토콘 | 도광 키판 및 이를 구비한 발광 키패드 |
JP4351696B2 (ja) * | 2006-12-01 | 2009-10-28 | アルプス電気株式会社 | 照光機構付きの入力装置 |
JP2008310556A (ja) * | 2007-06-14 | 2008-12-25 | Panasonic Corp | 入力装置およびその入力装置用モジュール品の製造方法 |
TWM333750U (en) * | 2008-01-03 | 2008-06-01 | Ichia Tech Inc | Metal panel structure with multiple color layers of hole-array |
TW200931294A (en) * | 2008-01-03 | 2009-07-16 | Ichia Tech Inc | A fabrication process for multiple-layer color metal panel with array micro-holes |
US20090205983A1 (en) * | 2008-02-19 | 2009-08-20 | Sony Ericsson Mobile Communications Ab | Metal cover for portable electronic device |
CN101651726A (zh) * | 2008-08-13 | 2010-02-17 | 深圳富泰宏精密工业有限公司 | 侧键及具该侧键的便携式电子装置 |
DE102008053351B3 (de) * | 2008-10-27 | 2010-08-05 | Gigaset Communications Gmbh | Bedienfeld für ein Tastaturmodul, Tastaturmodul und Verfahren zu deren Herstellung |
CN101777454A (zh) * | 2009-01-13 | 2010-07-14 | 深圳富泰宏精密工业有限公司 | 按键面板及其制作方法 |
US8209868B2 (en) | 2009-07-27 | 2012-07-03 | The Gillette Company | Device with an illuminated button assembly |
CN102064034B (zh) * | 2009-11-18 | 2014-01-15 | 鸿富锦精密工业(深圳)有限公司 | 电源按钮模组及采用该电源按钮模组的电子装置 |
KR20110059501A (ko) * | 2009-11-27 | 2011-06-02 | 삼성전자주식회사 | 전자 기기의 키패드 및 그 제조방법 |
KR101083071B1 (ko) * | 2010-02-04 | 2011-11-16 | 주식회사 팬택 | 휴대단말기의 메탈 돔 스위치 일체형 터치 윈도우 |
CN102208297B (zh) * | 2010-03-29 | 2013-12-04 | 富士康(昆山)电脑接插件有限公司 | 按键面板 |
US9472360B2 (en) * | 2013-09-27 | 2016-10-18 | Apple Inc. | Curable foam shims for buttons of electronic devices |
US9525764B1 (en) * | 2015-10-30 | 2016-12-20 | Essential Products, Inc. | Co-mold features on a chassis shell of a mobile device |
US9762781B2 (en) | 2015-10-30 | 2017-09-12 | Essential Products, Inc. | Apparatus and method to maximize the display area of a mobile device by increasing the size of the display without necessarily increasing the size of the phone |
US9736383B2 (en) | 2015-10-30 | 2017-08-15 | Essential Products, Inc. | Apparatus and method to maximize the display area of a mobile device |
US9723114B2 (en) | 2015-10-30 | 2017-08-01 | Essential Products, Inc. | Unibody contact features on a chassis shell of a mobile device |
TWI615869B (zh) * | 2017-06-09 | 2018-02-21 | 致伸科技股份有限公司 | 鍵盤 |
TWI700976B (zh) * | 2019-05-17 | 2020-08-01 | 和碩聯合科技股份有限公司 | 電子裝置及其殼體結構 |
CN112349530A (zh) * | 2019-08-08 | 2021-02-09 | 鸿富锦精密电子(郑州)有限公司 | 防水隔层、应用其的防水按键结构及电子设备 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11329149A (ja) * | 1998-05-12 | 1999-11-30 | Matsushita Electric Ind Co Ltd | 携帯電子機器の構造 |
JP2004079339A (ja) * | 2002-08-19 | 2004-03-11 | Seiko Precision Inc | 照光スイッチ |
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 (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4914416A (en) * | 1988-09-01 | 1990-04-03 | Takahiro Kunikane | Pressure sensing electric conductor and its manufacturing method |
IL95939A0 (en) | 1989-10-20 | 1991-07-18 | Atochem | Process for compensating the harmful effects of impurities of n-dichlorophosphoryltrichlorophosphazene and its polycondensation product |
US5945463A (en) * | 1994-09-30 | 1999-08-31 | Zeon Rize Co., Ltd. | Composition for a gasket and process for producing a gasket using the composition |
JP3102854B2 (ja) * | 1997-08-08 | 2000-10-23 | 信越ポリマー株式会社 | 照光式押釦スイッチ用カバー部材およびその製造方法 |
JPH11273494A (ja) * | 1998-03-24 | 1999-10-08 | Harness Syst Tech Res Ltd | 押し釦式スイッチ |
CN1274167A (zh) * | 1999-03-12 | 2000-11-22 | 精工精密株式会社 | 发光型开关 |
JP4414066B2 (ja) * | 2000-06-15 | 2010-02-10 | ポリマテック株式会社 | 積層キーシート |
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 |
US7511701B2 (en) * | 2000-12-29 | 2009-03-31 | Vertu Limited | Casing having light guide with legends |
JP2003131787A (ja) * | 2001-10-23 | 2003-05-09 | Nec Saitama Ltd | 携帯機器のキーボタン構造 |
JP2003257276A (ja) * | 2001-11-28 | 2003-09-12 | Hon Hai Precision Industry Co Ltd | 携帯型電子装置押しボタン |
JP2003323827A (ja) * | 2002-05-07 | 2003-11-14 | Shin Etsu Polymer Co Ltd | 押釦スイッチ用部材とその製造方法 |
JP2004087203A (ja) * | 2002-08-23 | 2004-03-18 | Sanyo Electric Co Ltd | キー入力装置及びこれを具えた携帯電話機 |
US7262379B2 (en) * | 2003-04-11 | 2007-08-28 | Polymatech Co., Ltd. | Key sheets and method of producing the same |
JP2005071808A (ja) * | 2003-08-25 | 2005-03-17 | Citizen Electronics Co Ltd | キーシートモジュール |
KR101054406B1 (ko) * | 2004-03-05 | 2011-08-05 | 엘지전자 주식회사 | 조작 버튼 |
US7249861B2 (en) * | 2004-03-15 | 2007-07-31 | Motorola, Inc. | Keypad assembly |
KR100563970B1 (ko) * | 2004-05-03 | 2006-03-30 | 이엘코리아 주식회사 | 플렉시블 무기 el 돔시트 및 이를 이용한 플렉시블 무기 el 돔시트 키패드 |
TWI283421B (en) * | 2005-03-11 | 2007-07-01 | Coretronic Corp | Backlight button assembly |
CN1866436A (zh) * | 2005-04-28 | 2006-11-22 | 保力马科技株式会社 | 按键开关用盖板及其制造方法 |
JP4801537B2 (ja) * | 2005-10-13 | 2011-10-26 | ポリマテック株式会社 | キーシート |
JP4843419B2 (ja) * | 2005-10-13 | 2011-12-21 | ポリマテック株式会社 | キーシート |
CN2886939Y (zh) * | 2006-03-08 | 2007-04-04 | 鸿富锦精密工业(深圳)有限公司 | 导光板及使用该导光板的电子产品 |
US7273993B1 (en) * | 2006-03-21 | 2007-09-25 | Motorola, Inc. | Keypad for data entry |
KR101228452B1 (ko) * | 2006-09-12 | 2013-01-31 | 엘지전자 주식회사 | 키패드 어셈블리 및 이를 구비한 휴대 단말기 |
-
2005
- 2005-12-28 EP EP05844842A patent/EP1835517A4/en not_active Withdrawn
- 2005-12-28 JP JP2006550832A patent/JP4653119B2/ja not_active Expired - Fee Related
- 2005-12-28 WO PCT/JP2005/024024 patent/WO2006070854A1/ja active Application Filing
- 2005-12-28 KR KR1020077013180A patent/KR20070089934A/ko not_active Application Discontinuation
- 2005-12-28 US US11/793,972 patent/US7705259B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11329149A (ja) * | 1998-05-12 | 1999-11-30 | Matsushita Electric Ind Co Ltd | 携帯電子機器の構造 |
JP2004079339A (ja) * | 2002-08-19 | 2004-03-11 | Seiko Precision Inc | 照光スイッチ |
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 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1835517A4 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008041194A (ja) * | 2006-08-08 | 2008-02-21 | Bridgestone Corp | 電子部品装置 |
JP2008067022A (ja) * | 2006-09-07 | 2008-03-21 | Nec Corp | 携帯通信端末の薄型化構造及び携帯通信端末 |
EP1914964A2 (en) | 2006-10-18 | 2008-04-23 | LG Electronics Inc. | Mobile terminal comprising a replaceable keypad cover |
EP1914964A3 (en) * | 2006-10-18 | 2012-06-13 | LG Electronics Inc. | Mobile terminal comprising a replaceable keypad cover |
JP2010515228A (ja) * | 2006-12-29 | 2010-05-06 | イマーション コーポレーション | 局所的な触覚フィードバック |
WO2010058671A1 (ja) * | 2008-11-20 | 2010-05-27 | 日本メクトロン株式会社 | 導光板、導光板の製造方法及び、携帯機器のキーモジュール |
TWI691991B (zh) * | 2018-08-31 | 2020-04-21 | 達方電子股份有限公司 | 發光鍵盤及其光源燈板 |
US10720289B1 (en) | 2019-02-20 | 2020-07-21 | Darfon Electronics Corp. | Light emitting keyboard and lighting board thereof |
Also Published As
Publication number | Publication date |
---|---|
US20080073186A1 (en) | 2008-03-27 |
KR20070089934A (ko) | 2007-09-04 |
JPWO2006070854A1 (ja) | 2008-06-12 |
EP1835517A4 (en) | 2011-01-05 |
JP4653119B2 (ja) | 2011-03-16 |
US7705259B2 (en) | 2010-04-27 |
EP1835517A1 (en) | 2007-09-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2006070854A1 (ja) | 薄型キーシート及び該薄型キーシートを組み込んだ薄型キーユニット | |
US6977352B2 (en) | Transmissive key sheet, input keys using transmissive key sheet and electronic equipment with input keys | |
US8441445B2 (en) | Electrophoretic display keypad structure | |
JP4898323B2 (ja) | キーシートおよび押釦スイッチ | |
WO2005098884A1 (ja) | 補強板付キーユニット | |
JP2012512596A (ja) | 光拡散アクチュエータフィルム(ldaf)・キーパッドモジュール | |
US8085246B2 (en) | Keypad panel assembly having laterally-illuminated keypad surface | |
US20110049094A1 (en) | Method of manufacturing keycap structure, keypad structure, panel, and housing | |
US7705256B2 (en) | Thin key sheet | |
US20130233689A1 (en) | Seamless faceplate assembly for keypad device | |
JP4588576B2 (ja) | 薄型キーシート及びその製造方法 | |
US20090178906A1 (en) | Keypad panel assembly having arrays of micropores | |
JP4111607B2 (ja) | 照光式押釦スイッチ | |
JP2004227867A (ja) | 押釦スイッチ用部材及びその製造方法 | |
CN101091230A (zh) | 薄型按键片以及组装了该薄型按键片的薄型按键单元 | |
JP4944447B2 (ja) | 操作パネル | |
KR20030009819A (ko) | 이엘 램프 일체형 키패드와 그 제조방법 | |
KR20080037974A (ko) | 키패드 어셈블리 | |
JP5619369B2 (ja) | シートスイッチ | |
KR20070109230A (ko) | 플렉시블 이엘 시트 일체형 키패드 및 그 제조 방법 | |
JP2000231847A (ja) | 電子機器のキーとその製造方法 | |
JP2011159565A (ja) | ドームシート、プリント配線板、キーモジュール及び電子機器 | |
JP2011159566A (ja) | 導光板、プリント配線板、キーモジュール及び電子機器 | |
JP2008234959A (ja) | キートップ取付用シート及びその製造方法及びキートップ板 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2006550832 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020077013180 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11793972 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580044970.0 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005844842 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2005844842 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 11793972 Country of ref document: US |